From 32e0a6e70403e7ffc28dd018788b3b989cd1031b Mon Sep 17 00:00:00 2001 From: jc_gargma Date: Thu, 24 Jan 2019 22:56:09 -0800 Subject: Updated to 4.20.4.a --- PKGBUILD | 40 +- config.x86_64 | 127 +- patch-4.19-ck1-jcmod2.patch | 16765 ----------------------------------------- patch-4.20-ck1-jcmod1.patch | 16903 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 17011 insertions(+), 16824 deletions(-) delete mode 100644 patch-4.19-ck1-jcmod2.patch create mode 100644 patch-4.20-ck1-jcmod1.patch diff --git a/PKGBUILD b/PKGBUILD index efe0eb6..9581984 100644 --- a/PKGBUILD +++ b/PKGBUILD @@ -15,14 +15,13 @@ # Arch version builds docs using python and graphviz pkgbase=linux-hardened-ck -_majver=4.19 -_minver=12 +_majver=4.20 +_minver=4 _pkgver=${_majver}.${_minver} _hardenedver=a -_NUMAdisable=y _ckpatchversion=1 -_ckpatchname="patch-${_majver}-ck${_ckpatchversion}" -_jcpatchversion=2 +_ckpatch="patch-${_majver}-ck${_ckpatchversion}" +_jcpatchversion=1 _gcc_more_v='20180509' _srcname=linux-${_pkgver} pkgver=${_pkgver}.${_hardenedver} @@ -42,7 +41,7 @@ source=(https://www.kernel.org/pub/linux/kernel/v4.x/linux-${_pkgver}.tar.xz # https://www.kernel.org/pub/linux/kernel/v4.x/patch-${_pkgver}.sign https://github.com/anthraxx/linux-hardened/releases/download/${_pkgver}.${_hardenedver}/linux-hardened-${_pkgver}.${_hardenedver}.patch{,.sig} patch-${_majver}-ck${_ckpatchversion}-jcmod${_jcpatchversion}.patch - #http://ck.kolivas.org/patches/4.0/${_majver}/${_majver}-ck${_ckpatchversion}/${_ckpatchname}.xz + #http://ck.kolivas.org/patches/4.0/${_majver}/${_majver}-ck${_ckpatchversion}/${_ckpatch}.xz enable_additional_cpu_optimizations-$_gcc_more_v.tar.gz::https://github.com/graysky2/kernel_gcc_patch/archive/$_gcc_more_v.tar.gz ath9k-regdom-hack.patch config.x86_64 # the main kernel config files @@ -50,14 +49,14 @@ source=(https://www.kernel.org/pub/linux/kernel/v4.x/linux-${_pkgver}.tar.xz 90-linux.hook # pacman hook for initramfs regeneration linux.preset # standard config files for mkinitcpio ramdisk ) -sha256sums=('4d81ac539d62617f5b52f25971749d8c6d3a200deee76898bb99be8492999b77' +sha256sums=('dd7fd7eafb8f94a3813a6398d5d2720422a80c933d0dc076479e5c58ecfd34d1' 'SKIP' - 'df3b2316bfe81e702dbddccfbbd37402d592f1af80dfc90296b50ba141604b44' + 'b795a107eceb2fd4ab51f7a7f06f700b6f6827cca277a2d8f94be28eeeb924b4' 'SKIP' - 'c7e090301b6fb3d6f320aeaee6747077ed616ccaf3d22d0d5937d5ea5116ffd8' + '90ab0d864452726a7b43f49debeb32ab4dc5d0ec65cb8b3f64c940a2469ab650' '226e30068ea0fecdb22f337391385701996bfbdba37cdcf0f1dbf55f1080542d' 'e7ebf050c22bcec0028c0b3c79fd6d3913b0370ecc6a23dfe78ce475630cf503' - '2110e5378ca3770fd0d66b916cbe1a58c135267cee41e23d0463a90a74be0b89' + 'bb208db0e8e419d714de529b19f2b5d57f743c56c1c1e4c241f11817d76960ec' 'ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21' '75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919' 'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65') @@ -79,7 +78,7 @@ prepare() { # patch -Np1 < ../patch-${_majver}-${_pkgver} # Hotfixes - # msg2 "Applying hotfixes" +# msg2 "Applying hotfixes" # linux hardened patch msg2 "Applying hardened patch" @@ -113,26 +112,13 @@ prepare() { cp ../config.x86_64 .config fi - ### Optionally disable NUMA for 64-bit kernels only - # (x86 kernels do not support NUMA) - if [ -n "$_NUMAdisable" ]; then - msg "Disabling NUMA from kernel config..." - sed -i -e 's/CONFIG_NUMA=y/# CONFIG_NUMA is not set/' \ - -i -e '/CONFIG_AMD_NUMA=y/d' \ - -i -e '/CONFIG_X86_64_ACPI_NUMA=y/d' \ - -i -e '/CONFIG_NODES_SPAN_OTHER_NODES=y/d' \ - -i -e '/# CONFIG_NUMA_EMU is not set/d' \ - -i -e '/CONFIG_NODES_SHIFT=5/d' \ - -i -e '/CONFIG_NEED_MULTIPLE_NODES=y/d' \ - -i -e '/# CONFIG_MOVABLE_NODE is not set/d' \ - -i -e '/CONFIG_USE_PERCPU_NUMA_NODE_ID=y/d' \ - -i -e '/CONFIG_ACPI_NUMA=y/d' ./.config - fi - make olddefconfig make menuconfig + # Remove sublevel when no sublevel exists +# sed -i '/SUBLEVEL = 0/d' Makefile + make -s kernelrelease > ../version # workaround for make -s kernelrelease not applying diff --git a/config.x86_64 b/config.x86_64 index 1cc5459..5035495 100644 --- a/config.x86_64 +++ b/config.x86_64 @@ -1,10 +1,10 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/x86 4.19.12 Kernel Configuration +# Linux/x86 4.20.4 Kernel Configuration # # -# Compiler: gcc (GCC) 8.2.1 20180831 +# Compiler: gcc (GCC) 8.2.1 20181127 # CONFIG_CC_IS_GCC=y CONFIG_GCC_VERSION=80201 @@ -70,6 +70,7 @@ CONFIG_SPARSE_IRQ=y # CONFIG_GENERIC_IRQ_DEBUGFS is not set CONFIG_CLOCKSOURCE_WATCHDOG=y CONFIG_ARCH_CLOCKSOURCE_DATA=y +CONFIG_ARCH_CLOCKSOURCE_INIT=y CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y CONFIG_GENERIC_TIME_VSYSCALL=y CONFIG_GENERIC_CLOCKEVENTS=y @@ -105,6 +106,8 @@ CONFIG_TASKSTATS=y CONFIG_TASK_DELAY_ACCT=y CONFIG_TASK_XACCT=y CONFIG_TASK_IO_ACCOUNTING=y +CONFIG_PSI=y +CONFIG_PSI_DEFAULT_DISABLED=y CONFIG_CPU_ISOLATION=y # @@ -305,6 +308,7 @@ CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y CONFIG_SCHED_OMIT_FRAME_POINTER=y CONFIG_HYPERVISOR_GUEST=y CONFIG_PARAVIRT=y +CONFIG_PARAVIRT_XXL=y # CONFIG_PARAVIRT_DEBUG is not set CONFIG_PARAVIRT_SPINLOCKS=y # CONFIG_QUEUED_LOCK_STAT is not set @@ -323,7 +327,6 @@ CONFIG_KVM_GUEST=y CONFIG_PARAVIRT_TIME_ACCOUNTING=y CONFIG_PARAVIRT_CLOCK=y CONFIG_JAILHOUSE_GUEST=y -CONFIG_NO_BOOTMEM=y # CONFIG_MK8 is not set # CONFIG_MK8SSE3 is not set # CONFIG_MK10 is not set @@ -361,6 +364,7 @@ CONFIG_X86_DEBUGCTLMSR=y CONFIG_PROCESSOR_SELECT=y CONFIG_CPU_SUP_INTEL=y CONFIG_CPU_SUP_AMD=y +CONFIG_CPU_SUP_HYGON=y CONFIG_CPU_SUP_CENTAUR=y CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y @@ -410,6 +414,7 @@ CONFIG_X86_MSR=m CONFIG_X86_CPUID=m # CONFIG_X86_5LEVEL is not set CONFIG_X86_DIRECT_GBPAGES=y +# CONFIG_X86_CPA_STATISTICS is not set CONFIG_ARCH_HAS_MEM_ENCRYPT=y CONFIG_AMD_MEM_ENCRYPT=y CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT=y @@ -562,6 +567,7 @@ CONFIG_ACPI_APEI_ERST_DEBUG=m CONFIG_DPTF_POWER=m CONFIG_ACPI_WATCHDOG=y CONFIG_ACPI_EXTLOG=m +CONFIG_ACPI_ADXL=y CONFIG_PMIC_OPREGION=y CONFIG_CRC_PMIC_OPREGION=y CONFIG_XPOWER_PMIC_OPREGION=y @@ -658,6 +664,7 @@ CONFIG_PCI_LOCKLESS_CONFIG=y CONFIG_PCI_IOV=y CONFIG_PCI_PRI=y CONFIG_PCI_PASID=y +CONFIG_PCI_P2PDMA=y CONFIG_PCI_LABEL=y CONFIG_PCI_HYPERV=m CONFIG_HOTPLUG_PCI=y @@ -764,8 +771,6 @@ CONFIG_HAVE_GENERIC_GUP=y CONFIG_EDD=m # CONFIG_EDD_OFF is not set CONFIG_FIRMWARE_MEMMAP=y -CONFIG_DELL_RBU=m -CONFIG_DCDBAS=m CONFIG_DMIID=y CONFIG_DMI_SYSFS=m CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y @@ -852,6 +857,7 @@ CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y CONFIG_HAVE_RSEQ=y +CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y CONFIG_HAVE_CLK=y CONFIG_HAVE_HW_BREAKPOINT=y CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y @@ -861,6 +867,7 @@ CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y CONFIG_HAVE_PERF_REGS=y CONFIG_HAVE_PERF_USER_STACK_DUMP=y CONFIG_HAVE_ARCH_JUMP_LABEL=y +CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y CONFIG_HAVE_RCU_TABLE_FREE=y CONFIG_HAVE_RCU_TABLE_INVALIDATE=y CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y @@ -871,6 +878,7 @@ CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y CONFIG_HAVE_ARCH_SECCOMP_FILTER=y CONFIG_SECCOMP_FILTER=y +CONFIG_HAVE_ARCH_STACKLEAK=y CONFIG_HAVE_STACKPROTECTOR=y CONFIG_CC_HAS_STACKPROTECTOR_NONE=y CONFIG_STACKPROTECTOR=y @@ -924,7 +932,7 @@ CONFIG_MODULES=y CONFIG_MODULE_FORCE_LOAD=y CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y -CONFIG_MODVERSIONS=y +# CONFIG_MODVERSIONS is not set CONFIG_MODULE_SRCVERSION_ALL=y CONFIG_MODULE_SIG=y # CONFIG_MODULE_SIG_FORCE is not set @@ -984,6 +992,7 @@ CONFIG_BLOCK_COMPAT=y CONFIG_BLK_MQ_PCI=y CONFIG_BLK_MQ_VIRTIO=y CONFIG_BLK_MQ_RDMA=y +CONFIG_BLK_PM=y # # IO Schedulers @@ -1024,7 +1033,7 @@ CONFIG_COMPAT_BINFMT_ELF=y CONFIG_ELFCORE=y CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y CONFIG_BINFMT_SCRIPT=y -CONFIG_BINFMT_MISC=m +CONFIG_BINFMT_MISC=y CONFIG_COREDUMP=y # @@ -1038,7 +1047,6 @@ CONFIG_HAVE_MEMORY_PRESENT=y CONFIG_SPARSEMEM_EXTREME=y CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y CONFIG_SPARSEMEM_VMEMMAP=y -CONFIG_HAVE_MEMBLOCK=y CONFIG_HAVE_MEMBLOCK_NODE_MAP=y CONFIG_ARCH_DISCARD_MEMBLOCK=y CONFIG_MEMORY_ISOLATION=y @@ -1300,6 +1308,7 @@ CONFIG_NFT_COMPAT=m CONFIG_NFT_HASH=m CONFIG_NFT_FIB=m CONFIG_NFT_FIB_INET=m +CONFIG_NFT_XFRM=m CONFIG_NFT_SOCKET=m CONFIG_NFT_OSF=m CONFIG_NFT_TPROXY=m @@ -1468,7 +1477,6 @@ CONFIG_IP_VS_PE_SIP=m # IP: Netfilter Configuration # CONFIG_NF_DEFRAG_IPV4=m -CONFIG_NF_CONNTRACK_IPV4=m CONFIG_NF_SOCKET_IPV4=m CONFIG_NF_TPROXY_IPV4=m CONFIG_NF_TABLES_IPV4=y @@ -1516,7 +1524,6 @@ CONFIG_IP_NF_ARP_MANGLE=m # # IPv6: Netfilter Configuration # -CONFIG_NF_CONNTRACK_IPV6=m CONFIG_NF_SOCKET_IPV6=m CONFIG_NF_TPROXY_IPV6=m CONFIG_NF_TABLES_IPV6=y @@ -1636,6 +1643,7 @@ CONFIG_NET_DSA_TAG_BRCM=y CONFIG_NET_DSA_TAG_BRCM_PREPEND=y CONFIG_NET_DSA_TAG_DSA=y CONFIG_NET_DSA_TAG_EDSA=y +CONFIG_NET_DSA_TAG_GSWIP=y CONFIG_NET_DSA_TAG_KSZ=y CONFIG_NET_DSA_TAG_LAN9303=y CONFIG_NET_DSA_TAG_MTK=y @@ -1689,6 +1697,7 @@ CONFIG_NET_SCH_TEQL=m CONFIG_NET_SCH_TBF=m CONFIG_NET_SCH_CBS=m CONFIG_NET_SCH_ETF=m +CONFIG_NET_SCH_TAPRIO=m CONFIG_NET_SCH_GRED=m CONFIG_NET_SCH_DSMARK=m CONFIG_NET_SCH_NETEM=m @@ -1773,6 +1782,7 @@ CONFIG_BATMAN_ADV_DAT=y CONFIG_BATMAN_ADV_NC=y CONFIG_BATMAN_ADV_MCAST=y # CONFIG_BATMAN_ADV_DEBUGFS is not set +# CONFIG_BATMAN_ADV_TRACING is not set CONFIG_OPENVSWITCH=m CONFIG_OPENVSWITCH_GRE=m CONFIG_OPENVSWITCH_VXLAN=m @@ -1793,6 +1803,7 @@ CONFIG_HSR=m CONFIG_NET_SWITCHDEV=y CONFIG_NET_L3_MASTER_DEV=y CONFIG_NET_NCSI=y +CONFIG_NCSI_OEM_CMD_GET_MAC=y CONFIG_RPS=y CONFIG_RFS_ACCEL=y CONFIG_XPS=y @@ -1972,8 +1983,6 @@ CONFIG_LIB80211_CRYPT_TKIP=m CONFIG_MAC80211=m CONFIG_MAC80211_HAS_RC=y CONFIG_MAC80211_RC_MINSTREL=y -CONFIG_MAC80211_RC_MINSTREL_HT=y -CONFIG_MAC80211_RC_MINSTREL_VHT=y CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y CONFIG_MAC80211_RC_DEFAULT="minstrel_ht" CONFIG_MAC80211_MESH=y @@ -2045,6 +2054,7 @@ CONFIG_LWTUNNEL_BPF=y CONFIG_DST_CACHE=y CONFIG_GRO_CELLS=y CONFIG_SOCK_VALIDATE_XMIT=y +CONFIG_NET_SOCK_MSG=y CONFIG_NET_DEVLINK=m CONFIG_MAY_USE_DEVLINK=m CONFIG_PAGE_POOL=y @@ -2224,7 +2234,6 @@ CONFIG_MTD_NAND_DISKONCHIP=m # CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED is not set CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0 CONFIG_MTD_NAND_DISKONCHIP_BBTWRITE=y -CONFIG_MTD_NAND_DOCG4=m CONFIG_MTD_NAND_CAFE=m CONFIG_MTD_NAND_NANDSIM=m CONFIG_MTD_NAND_PLATFORM=m @@ -2285,7 +2294,6 @@ CONFIG_BLK_DEV_PCIESSD_MTIP32XX=m CONFIG_ZRAM=m CONFIG_ZRAM_WRITEBACK=y # CONFIG_ZRAM_MEMORY_TRACKING is not set -CONFIG_BLK_DEV_DAC960=m CONFIG_BLK_DEV_UMEM=m CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 @@ -2367,6 +2375,7 @@ CONFIG_EEPROM_MAX6875=m CONFIG_EEPROM_93CX6=m # CONFIG_EEPROM_93XX46 is not set CONFIG_EEPROM_IDT_89HPESX=m +CONFIG_EEPROM_EE1004=m CONFIG_CB710_CORE=m # CONFIG_CB710_DEBUG is not set CONFIG_CB710_DEBUG_ASSUMPTIONS=y @@ -2522,9 +2531,12 @@ CONFIG_SCSI_UFSHCD_PCI=m # CONFIG_SCSI_UFS_DWC_TC_PCI is not set CONFIG_SCSI_UFSHCD_PLATFORM=m # CONFIG_SCSI_UFS_DWC_TC_PLATFORM is not set +CONFIG_SCSI_UFS_BSG=y CONFIG_SCSI_HPTIOP=m CONFIG_SCSI_BUSLOGIC=m CONFIG_SCSI_FLASHPOINT=y +CONFIG_SCSI_MYRB=m +CONFIG_SCSI_MYRS=m CONFIG_VMWARE_PVSCSI=m CONFIG_XEN_SCSI_FRONTEND=m CONFIG_HYPERV_STORAGE=m @@ -2698,7 +2710,6 @@ CONFIG_BCACHE=m # CONFIG_BCACHE_CLOSURES_DEBUG is not set CONFIG_BLK_DEV_DM_BUILTIN=y CONFIG_BLK_DEV_DM=m -CONFIG_DM_MQ_DEFAULT=y # CONFIG_DM_DEBUG is not set CONFIG_DM_BUFIO=m # CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set @@ -2845,8 +2856,10 @@ CONFIG_B53=m CONFIG_B53_MDIO_DRIVER=m CONFIG_B53_MMAP_DRIVER=m CONFIG_B53_SRAB_DRIVER=m +CONFIG_B53_SERDES=m CONFIG_NET_DSA_BCM_SF2=m CONFIG_NET_DSA_LOOP=m +CONFIG_NET_DSA_LANTIQ_GSWIP=m CONFIG_NET_DSA_MT7530=m CONFIG_MICROCHIP_KSZ=m CONFIG_MICROCHIP_KSZ_SPI_DRIVER=m @@ -2991,12 +3004,16 @@ CONFIG_IXGBE=m CONFIG_IXGBE_HWMON=y CONFIG_IXGBE_DCA=y CONFIG_IXGBE_DCB=y +CONFIG_IXGBE_IPSEC=y CONFIG_IXGBEVF=m +CONFIG_IXGBEVF_IPSEC=y CONFIG_I40E=m CONFIG_I40E_DCB=y +CONFIG_IAVF=m CONFIG_I40EVF=m CONFIG_ICE=m CONFIG_FM10K=m +CONFIG_IGC=m CONFIG_JME=m CONFIG_NET_VENDOR_MARVELL=y CONFIG_MVMDIO=m @@ -3064,6 +3081,7 @@ CONFIG_NFP_APP_FLOWER=y CONFIG_NFP_APP_ABM_NIC=y # CONFIG_NFP_DEBUG is not set CONFIG_NET_VENDOR_NI=y +CONFIG_NI_XGE_MANAGEMENT_ENET=m CONFIG_NET_VENDOR_8390=y CONFIG_PCMCIA_AXNET=m CONFIG_NE2K_PCI=m @@ -3471,8 +3489,12 @@ CONFIG_MT7601U=m CONFIG_MT76_CORE=m CONFIG_MT76_LEDS=y CONFIG_MT76_USB=m -CONFIG_MT76x2_COMMON=m +CONFIG_MT76x02_LIB=m +CONFIG_MT76x02_USB=m +CONFIG_MT76x0_COMMON=m CONFIG_MT76x0U=m +CONFIG_MT76x0E=m +CONFIG_MT76x2_COMMON=m CONFIG_MT76x2E=m CONFIG_MT76x2U=m CONFIG_WLAN_VENDOR_RALINK=y @@ -4253,6 +4275,7 @@ CONFIG_I2C_PIIX4=m CONFIG_I2C_CHT_WC=m CONFIG_I2C_NFORCE2=m CONFIG_I2C_NFORCE2_S4985=m +CONFIG_I2C_NVIDIA_GPU=m CONFIG_I2C_SIS5595=m CONFIG_I2C_SIS630=m CONFIG_I2C_SIS96X=m @@ -4438,6 +4461,7 @@ CONFIG_GPIO_LYNXPOINT=m CONFIG_GPIO_MB86S7X=m CONFIG_GPIO_MENZ127=m CONFIG_GPIO_MOCKUP=m +CONFIG_GPIO_SIOX=m CONFIG_GPIO_SYSCON=m CONFIG_GPIO_VX855=m CONFIG_GPIO_XILINX=m @@ -4977,6 +5001,7 @@ CONFIG_MFD_AS3711=y CONFIG_MFD_AS3722=m CONFIG_PMIC_ADP5520=y CONFIG_MFD_AAT2870_CORE=y +CONFIG_MFD_AT91_USART=m CONFIG_MFD_ATMEL_FLEXCOM=m CONFIG_MFD_ATMEL_HLCDC=m CONFIG_MFD_BCM590XX=m @@ -5267,6 +5292,7 @@ CONFIG_MEDIA_CEC_SUPPORT=y # CONFIG_CEC_PIN_ERROR_INJ is not set CONFIG_MEDIA_CONTROLLER=y # CONFIG_MEDIA_CONTROLLER_DVB is not set +# CONFIG_MEDIA_CONTROLLER_REQUEST_API is not set CONFIG_VIDEO_DEV=m CONFIG_VIDEO_V4L2_SUBDEV_API=y CONFIG_VIDEO_V4L2=m @@ -5957,6 +5983,7 @@ CONFIG_DRM_KMS_HELPER=m CONFIG_DRM_KMS_FB_HELPER=y CONFIG_DRM_FBDEV_EMULATION=y CONFIG_DRM_FBDEV_OVERALLOC=100 +# CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM is not set CONFIG_DRM_LOAD_EDID_FIRMWARE=y CONFIG_DRM_DP_CEC=y CONFIG_DRM_TTM=m @@ -5990,7 +6017,9 @@ CONFIG_DRM_AMD_ACP=y # CONFIG_DRM_AMD_DC=y CONFIG_DRM_AMD_DC_DCN1_0=y +CONFIG_DRM_AMD_DC_DCN1_01=y # CONFIG_DEBUG_KERNEL_DC is not set +CONFIG_HSA_AMD=y # # AMD Library routines @@ -6022,6 +6051,7 @@ CONFIG_DRM_I915_GVT_KVMGT=m # CONFIG_DRM_I915_SELFTEST is not set # CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS is not set # CONFIG_DRM_I915_DEBUG_VBLANK_EVADE is not set +# CONFIG_DRM_I915_DEBUG_RUNTIME_PM is not set CONFIG_DRM_VGEM=m CONFIG_DRM_VKMS=m CONFIG_DRM_VMWGFX=m @@ -6080,8 +6110,10 @@ CONFIG_DRM_SIL_SII8620=m CONFIG_DRM_SII902X=m CONFIG_DRM_SII9234=m CONFIG_DRM_THINE_THC63LVD1024=m +CONFIG_DRM_TOSHIBA_TC358764=m CONFIG_DRM_TOSHIBA_TC358767=m CONFIG_DRM_TI_TFP410=m +CONFIG_DRM_TI_SN65DSI86=m CONFIG_DRM_I2C_ADV7511=m CONFIG_DRM_I2C_ADV7511_AUDIO=y CONFIG_DRM_I2C_ADV7533=y @@ -6090,7 +6122,6 @@ CONFIG_DRM_DW_HDMI=m CONFIG_DRM_DW_HDMI_AHB_AUDIO=m CONFIG_DRM_DW_HDMI_I2S_AUDIO=m CONFIG_DRM_DW_HDMI_CEC=m -CONFIG_HSA_AMD=m CONFIG_DRM_ARCPGU=m CONFIG_DRM_HISI_HIBMC=m CONFIG_DRM_MXS=y @@ -6111,10 +6142,10 @@ CONFIG_DRM_PANEL_ORIENTATION_QUIRKS=y # # Frame buffer Devices # -CONFIG_FB=y -CONFIG_FIRMWARE_EDID=y CONFIG_FB_CMDLINE=y CONFIG_FB_NOTIFY=y +CONFIG_FB=y +CONFIG_FIRMWARE_EDID=y CONFIG_FB_BOOT_VESA_SUPPORT=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y @@ -6176,7 +6207,6 @@ CONFIG_FB_EFI=y CONFIG_XEN_FBDEV_FRONTEND=m # CONFIG_FB_METRONOME is not set # CONFIG_FB_MB862XX is not set -# CONFIG_FB_BROADSHEET is not set CONFIG_FB_HYPERV=m CONFIG_FB_SIMPLE=y # CONFIG_FB_SSD1307 is not set @@ -6191,8 +6221,6 @@ CONFIG_LCD_ILI9320=m CONFIG_LCD_TDO24M=m CONFIG_LCD_VGG2432A4=m CONFIG_LCD_PLATFORM=m -CONFIG_LCD_S6E63M0=m -CONFIG_LCD_LD9040=m CONFIG_LCD_AMS369FG06=m CONFIG_LCD_LMS501KF03=m CONFIG_LCD_HX8357=m @@ -6447,6 +6475,7 @@ CONFIG_SND_SOC_AMD_ACP=m CONFIG_SND_SOC_AMD_CZ_DA7219MX98357_MACH=m CONFIG_SND_SOC_AMD_CZ_RT5645_MACH=m CONFIG_SND_ATMEL_SOC=m +CONFIG_SND_SOC_MIKROE_PROTO=m CONFIG_SND_DESIGNWARE_I2S=m CONFIG_SND_DESIGNWARE_PCM=y @@ -6482,8 +6511,10 @@ CONFIG_SND_SOC_INTEL_HASWELL=m CONFIG_SND_SST_ATOM_HIFI2_PLATFORM=m CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_PCI=m CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI=m -CONFIG_SND_SOC_INTEL_SKYLAKE_SSP_CLK=m CONFIG_SND_SOC_INTEL_SKYLAKE=m +CONFIG_SND_SOC_INTEL_SKYLAKE_SSP_CLK=m +CONFIG_SND_SOC_INTEL_SKYLAKE_HDAUDIO_CODEC=y +CONFIG_SND_SOC_INTEL_SKYLAKE_COMMON=m CONFIG_SND_SOC_ACPI_INTEL_MATCH=m CONFIG_SND_SOC_INTEL_MACH=y CONFIG_SND_SOC_INTEL_HASWELL_MACH=m @@ -6506,7 +6537,9 @@ CONFIG_SND_SOC_INTEL_BXT_RT298_MACH=m CONFIG_SND_SOC_INTEL_KBL_RT5663_MAX98927_MACH=m CONFIG_SND_SOC_INTEL_KBL_RT5663_RT5514_MAX98927_MACH=m CONFIG_SND_SOC_INTEL_KBL_DA7219_MAX98357A_MACH=m +CONFIG_SND_SOC_INTEL_KBL_DA7219_MAX98927_MACH=m CONFIG_SND_SOC_INTEL_GLK_RT5682_MAX98357A_MACH=m +CONFIG_SND_SOC_INTEL_SKL_HDA_DSP_GENERIC_MACH=m # # STMicroelectronics STM32 SOC audio support @@ -6569,7 +6602,9 @@ CONFIG_SND_SOC_ES8328_I2C=m CONFIG_SND_SOC_ES8328_SPI=m CONFIG_SND_SOC_GTM601=m CONFIG_SND_SOC_HDAC_HDMI=m +CONFIG_SND_SOC_HDAC_HDA=m CONFIG_SND_SOC_INNO_RK3036=m +CONFIG_SND_SOC_MAX98088=m CONFIG_SND_SOC_MAX98090=m CONFIG_SND_SOC_MAX98357A=m CONFIG_SND_SOC_MAX98504=m @@ -6588,6 +6623,9 @@ CONFIG_SND_SOC_PCM179X_SPI=m CONFIG_SND_SOC_PCM186X=m CONFIG_SND_SOC_PCM186X_I2C=m CONFIG_SND_SOC_PCM186X_SPI=m +CONFIG_SND_SOC_PCM3060=m +CONFIG_SND_SOC_PCM3060_I2C=m +CONFIG_SND_SOC_PCM3060_SPI=m CONFIG_SND_SOC_PCM3168A=m CONFIG_SND_SOC_PCM3168A_I2C=m CONFIG_SND_SOC_PCM3168A_SPI=m @@ -6672,6 +6710,7 @@ CONFIG_SND_SOC_MAX9759=m CONFIG_SND_SOC_MT6351=m CONFIG_SND_SOC_NAU8540=m CONFIG_SND_SOC_NAU8810=m +CONFIG_SND_SOC_NAU8822=m CONFIG_SND_SOC_NAU8824=m CONFIG_SND_SOC_NAU8825=m CONFIG_SND_SOC_TPA6130A2=m @@ -6708,6 +6747,7 @@ CONFIG_HID_ASUS=m CONFIG_HID_AUREAL=m CONFIG_HID_BELKIN=m CONFIG_HID_BETOP_FF=m +CONFIG_HID_BIGBEN_FF=m CONFIG_HID_CHERRY=m CONFIG_HID_CHICONY=m CONFIG_HID_CORSAIR=m @@ -7193,6 +7233,7 @@ CONFIG_TYPEC_RT1711H=m CONFIG_TYPEC_FUSB302=m CONFIG_TYPEC_WCOVE=m CONFIG_TYPEC_UCSI=m +CONFIG_UCSI_CCG=m CONFIG_UCSI_ACPI=m CONFIG_TYPEC_TPS6598X=m @@ -7205,10 +7246,10 @@ CONFIG_TYPEC_MUX_PI3USB30532=m # USB Type-C Alternate Mode drivers # CONFIG_TYPEC_DP_ALTMODE=m +CONFIG_USB_ROLE_SWITCH=m CONFIG_USB_ROLES_INTEL_XHCI=m CONFIG_USB_LED_TRIG=y CONFIG_USB_ULPI_BUS=m -CONFIG_USB_ROLE_SWITCH=m CONFIG_UWB=m CONFIG_UWB_HWA=m CONFIG_UWB_WHCI=m @@ -7280,6 +7321,7 @@ CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y # CONFIG_LEDS_88PM860X=m CONFIG_LEDS_AAT1290=m +CONFIG_LEDS_AN30259A=m CONFIG_LEDS_APU=m CONFIG_LEDS_AS3645A=m CONFIG_LEDS_BCM6328=m @@ -7362,6 +7404,7 @@ CONFIG_LEDS_TRIGGER_TRANSIENT=m CONFIG_LEDS_TRIGGER_CAMERA=m CONFIG_LEDS_TRIGGER_PANIC=y CONFIG_LEDS_TRIGGER_NETDEV=m +CONFIG_LEDS_TRIGGER_PATTERN=m CONFIG_ACCESSIBILITY=y CONFIG_A11Y_BRAILLE_CONSOLE=y CONFIG_INFINIBAND=m @@ -7536,7 +7579,6 @@ CONFIG_RTC_DRV_DS1685=y # CONFIG_RTC_DRV_DS17285 is not set # CONFIG_RTC_DRV_DS17485 is not set # CONFIG_RTC_DRV_DS17885 is not set -# CONFIG_RTC_DS1685_PROC_REGS is not set CONFIG_RTC_DRV_DS1742=m CONFIG_RTC_DRV_DS2404=m CONFIG_RTC_DRV_DA9052=m @@ -7607,6 +7649,7 @@ CONFIG_DMA_ENGINE_RAID=y # CONFIG_SYNC_FILE=y # CONFIG_SW_SYNC is not set +CONFIG_UDMABUF=y CONFIG_DCA=m CONFIG_AUXDISPLAY=y CONFIG_HD44780=m @@ -7789,6 +7832,7 @@ CONFIG_COMEDI_AMPLC_PC236=m CONFIG_COMEDI_DAS08=m CONFIG_COMEDI_NI_LABPC=m CONFIG_COMEDI_NI_TIO=m +CONFIG_COMEDI_NI_ROUTING=m CONFIG_RTL8192U=m CONFIG_RTLLIB=m CONFIG_RTLLIB_CRYPTO_CCMP=m @@ -7904,7 +7948,6 @@ CONFIG_FWTTY_MAX_TOTAL_PORTS=64 CONFIG_FWTTY_MAX_CARD_PORTS=32 CONFIG_MTD_SPINAND_MT29F=m CONFIG_MTD_SPINAND_ONDIEECC=y -CONFIG_DGNC=m CONFIG_GS_FPGABOOT=m CONFIG_UNISYSSPAR=y CONFIG_COMMON_CLK_XLNX_CLKWZRD=m @@ -7942,6 +7985,7 @@ CONFIG_EROFS_FS_POSIX_ACL=y CONFIG_EROFS_FS_SECURITY=y # CONFIG_EROFS_FS_USE_VM_MAP_RAM is not set # CONFIG_EROFS_FAULT_INJECTION is not set +CONFIG_EROFS_FS_IO_MAX_RETRIES=5 CONFIG_EROFS_FS_ZIP=y CONFIG_EROFS_FS_CLUSTER_PAGE_LIMIT=2 # CONFIG_EROFS_FS_ZIP_NO_CACHE is not set @@ -7953,6 +7997,7 @@ CONFIG_ACER_WIRELESS=m CONFIG_ACERHDF=m CONFIG_ALIENWARE_WMI=m CONFIG_ASUS_LAPTOP=m +CONFIG_DCDBAS=m CONFIG_DELL_SMBIOS=m CONFIG_DELL_SMBIOS_WMI=y CONFIG_DELL_SMBIOS_SMM=y @@ -7963,6 +8008,7 @@ CONFIG_DELL_WMI_AIO=m CONFIG_DELL_WMI_LED=m CONFIG_DELL_SMO8800=m CONFIG_DELL_RBTN=m +CONFIG_DELL_RBU=m CONFIG_FUJITSU_LAPTOP=m CONFIG_FUJITSU_TABLET=m CONFIG_AMILO_RFKILL=m @@ -7970,6 +8016,7 @@ CONFIG_GPD_POCKET_FAN=m CONFIG_HP_ACCEL=m CONFIG_HP_WIRELESS=m CONFIG_HP_WMI=m +CONFIG_LG_LAPTOP=m CONFIG_MSI_LAPTOP=m CONFIG_PANASONIC_LAPTOP=m CONFIG_COMPAL_LAPTOP=m @@ -8028,6 +8075,7 @@ CONFIG_INTEL_TURBO_MAX_3=y CONFIG_TOUCHSCREEN_DMI=y CONFIG_INTEL_CHTDC_TI_PWRBTN=m CONFIG_I2C_MULTI_INSTANTIATE=m +CONFIG_INTEL_ATOMISP2_PM=m CONFIG_PMC_ATOM=y CONFIG_CHROME_PLATFORMS=y CONFIG_CHROMEOS_LAPTOP=m @@ -8205,6 +8253,9 @@ CONFIG_IIO_TRIGGERED_EVENT=m # CONFIG_ADIS16201=m CONFIG_ADIS16209=m +CONFIG_ADXL372=m +CONFIG_ADXL372_SPI=m +CONFIG_ADXL372_I2C=m CONFIG_BMA180=m CONFIG_BMA220=m CONFIG_BMC150_ACCEL=m @@ -8274,12 +8325,14 @@ CONFIG_MAX1363=m CONFIG_MAX9611=m CONFIG_MCP320X=m CONFIG_MCP3422=m +CONFIG_MCP3911=m CONFIG_MEN_Z188_ADC=m CONFIG_NAU7802=m CONFIG_PALMAS_GPADC=m CONFIG_QCOM_VADC_COMMON=m CONFIG_QCOM_SPMI_IADC=m CONFIG_QCOM_SPMI_VADC=m +CONFIG_QCOM_SPMI_ADC5=m CONFIG_SD_ADC_MODULATOR=m CONFIG_TI_ADC081C=m CONFIG_TI_ADC0832=m @@ -8355,6 +8408,7 @@ CONFIG_AD5592R=m CONFIG_AD5593R=m CONFIG_AD5504=m CONFIG_AD5624R_SPI=m +CONFIG_LTC1660=m CONFIG_LTC2632=m CONFIG_AD5686=m CONFIG_AD5686_SPI=m @@ -8603,6 +8657,7 @@ CONFIG_RFD77402=m CONFIG_SRF04=m CONFIG_SX9500=m CONFIG_SRF08=m +CONFIG_VL53L0X_I2C=m # # Resolver to digital converters @@ -8683,10 +8738,12 @@ CONFIG_FMC_CHARDEV=m # CONFIG_GENERIC_PHY=y CONFIG_BCM_KONA_USB2_PHY=m +CONFIG_PHY_CADENCE_DP=m CONFIG_PHY_PXA_28NM_HSIC=m CONFIG_PHY_PXA_28NM_USB2=m CONFIG_PHY_CPCAP_USB=m CONFIG_PHY_MAPPHONE_MDM6600=m +CONFIG_PHY_OCELOT_SERDES=m CONFIG_PHY_QCOM_USB_HS=m CONFIG_PHY_QCOM_USB_HSIC=m CONFIG_PHY_SAMSUNG_USB2=m @@ -8730,6 +8787,8 @@ CONFIG_RAVE_SP_EEPROM=m # HW tracing support # CONFIG_STM=m +CONFIG_STM_PROTO_BASIC=m +CONFIG_STM_PROTO_SYS_T=m # CONFIG_STM_DUMMY is not set CONFIG_STM_SOURCE_CONSOLE=m CONFIG_STM_SOURCE_HEARTBEAT=m @@ -8961,6 +9020,7 @@ CONFIG_UBIFS_ATIME_SUPPORT=y CONFIG_UBIFS_FS_XATTR=y CONFIG_UBIFS_FS_ENCRYPTION=y CONFIG_UBIFS_FS_SECURITY=y +CONFIG_UBIFS_FS_AUTHENTICATION=y CONFIG_CRAMFS=m CONFIG_CRAMFS_BLOCKDEV=y CONFIG_CRAMFS_MTD=y @@ -9075,6 +9135,7 @@ CONFIG_CODA_FS=m CONFIG_AFS_FS=m # CONFIG_AFS_DEBUG is not set CONFIG_AFS_FSCACHE=y +# CONFIG_AFS_DEBUG_CURSOR is not set CONFIG_9P_FS=m CONFIG_9P_FSCACHE=y CONFIG_9P_FS_POSIX_ACL=y @@ -9228,7 +9289,6 @@ CONFIG_CRYPTO_NULL2=y CONFIG_CRYPTO_PCRYPT=m CONFIG_CRYPTO_WORKQUEUE=y CONFIG_CRYPTO_CRYPTD=m -CONFIG_CRYPTO_MCRYPTD=m CONFIG_CRYPTO_AUTHENC=m CONFIG_CRYPTO_TEST=m CONFIG_CRYPTO_SIMD=m @@ -9264,8 +9324,9 @@ CONFIG_CRYPTO_CBC=m CONFIG_CRYPTO_CFB=m CONFIG_CRYPTO_CTR=y CONFIG_CRYPTO_CTS=m -CONFIG_CRYPTO_ECB=y +CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_LRW=m +CONFIG_CRYPTO_OFB=m CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_XTS=m CONFIG_CRYPTO_KEYWRAP=m @@ -9301,9 +9362,6 @@ CONFIG_CRYPTO_SHA1=y CONFIG_CRYPTO_SHA1_SSSE3=m CONFIG_CRYPTO_SHA256_SSSE3=m CONFIG_CRYPTO_SHA512_SSSE3=m -CONFIG_CRYPTO_SHA1_MB=m -CONFIG_CRYPTO_SHA256_MB=m -CONFIG_CRYPTO_SHA512_MB=m CONFIG_CRYPTO_SHA256=y CONFIG_CRYPTO_SHA512=y CONFIG_CRYPTO_SHA3=m @@ -9404,7 +9462,10 @@ CONFIG_CRYPTO_DEV_VIRTIO=m CONFIG_CRYPTO_DEV_CCREE=m CONFIG_ASYMMETRIC_KEY_TYPE=y CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y +CONFIG_ASYMMETRIC_TPM_KEY_SUBTYPE=m CONFIG_X509_CERTIFICATE_PARSER=y +CONFIG_PKCS8_PRIVATE_KEY_PARSER=m +CONFIG_TPM_KEY_PARSER=m CONFIG_PKCS7_MESSAGE_PARSER=y # CONFIG_PKCS7_TEST_KEY is not set CONFIG_SIGNED_PE_FILE_VERIFICATION=y @@ -9491,7 +9552,7 @@ CONFIG_TEXTSEARCH_BM=m CONFIG_TEXTSEARCH_FSM=m CONFIG_BTREE=y CONFIG_INTERVAL_TREE=y -CONFIG_RADIX_TREE_MULTIORDER=y +CONFIG_XARRAY_MULTI=y CONFIG_ASSOCIATIVE_ARRAY=y CONFIG_HAS_IOMEM=y CONFIG_HAS_IOPORT_MAP=y @@ -9749,6 +9810,7 @@ CONFIG_LKDTM=m # CONFIG_TEST_BITMAP is not set # CONFIG_TEST_BITFIELD is not set # CONFIG_TEST_UUID is not set +# CONFIG_TEST_XARRAY is not set # CONFIG_TEST_OVERFLOW is not set # CONFIG_TEST_RHASHTABLE is not set # CONFIG_TEST_HASH is not set @@ -9763,6 +9825,7 @@ CONFIG_LKDTM=m # CONFIG_TEST_UDELAY is not set # CONFIG_TEST_STATIC_KEYS is not set # CONFIG_TEST_KMOD is not set +# CONFIG_TEST_MEMCAT_P is not set # CONFIG_MEMTEST is not set CONFIG_BUG_ON_DATA_CORRUPTION=y # CONFIG_SAMPLES is not set diff --git a/patch-4.19-ck1-jcmod2.patch b/patch-4.19-ck1-jcmod2.patch deleted file mode 100644 index 235d6f6..0000000 --- a/patch-4.19-ck1-jcmod2.patch +++ /dev/null @@ -1,16765 +0,0 @@ -diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt -index 92eb1f42240d..627365ae5499 100644 ---- a/Documentation/admin-guide/kernel-parameters.txt -+++ b/Documentation/admin-guide/kernel-parameters.txt -@@ -4001,6 +4001,14 @@ - Memory area to be used by remote processor image, - managed by CMA. - -+ rqshare= [X86] Select the MuQSS scheduler runqueue sharing type. -+ Format: -+ smt -- Share SMT (hyperthread) sibling runqueues -+ mc -- Share MC (multicore) sibling runqueues -+ smp -- Share SMP runqueues -+ none -- So not share any runqueues -+ Default value is mc -+ - rw [KNL] Mount root device read-write on boot - - S [KNL] Run init in single mode -diff --git a/Documentation/scheduler/sched-BFS.txt b/Documentation/scheduler/sched-BFS.txt -new file mode 100644 -index 000000000000..c0282002a079 ---- /dev/null -+++ b/Documentation/scheduler/sched-BFS.txt -@@ -0,0 +1,351 @@ -+BFS - The Brain Fuck Scheduler by Con Kolivas. -+ -+Goals. -+ -+The goal of the Brain Fuck Scheduler, referred to as BFS from here on, is to -+completely do away with the complex designs of the past for the cpu process -+scheduler and instead implement one that is very simple in basic design. -+The main focus of BFS is to achieve excellent desktop interactivity and -+responsiveness without heuristics and tuning knobs that are difficult to -+understand, impossible to model and predict the effect of, and when tuned to -+one workload cause massive detriment to another. -+ -+ -+Design summary. -+ -+BFS is best described as a single runqueue, O(n) lookup, earliest effective -+virtual deadline first design, loosely based on EEVDF (earliest eligible virtual -+deadline first) and my previous Staircase Deadline scheduler. Each component -+shall be described in order to understand the significance of, and reasoning for -+it. The codebase when the first stable version was released was approximately -+9000 lines less code than the existing mainline linux kernel scheduler (in -+2.6.31). This does not even take into account the removal of documentation and -+the cgroups code that is not used. -+ -+Design reasoning. -+ -+The single runqueue refers to the queued but not running processes for the -+entire system, regardless of the number of CPUs. The reason for going back to -+a single runqueue design is that once multiple runqueues are introduced, -+per-CPU or otherwise, there will be complex interactions as each runqueue will -+be responsible for the scheduling latency and fairness of the tasks only on its -+own runqueue, and to achieve fairness and low latency across multiple CPUs, any -+advantage in throughput of having CPU local tasks causes other disadvantages. -+This is due to requiring a very complex balancing system to at best achieve some -+semblance of fairness across CPUs and can only maintain relatively low latency -+for tasks bound to the same CPUs, not across them. To increase said fairness -+and latency across CPUs, the advantage of local runqueue locking, which makes -+for better scalability, is lost due to having to grab multiple locks. -+ -+A significant feature of BFS is that all accounting is done purely based on CPU -+used and nowhere is sleep time used in any way to determine entitlement or -+interactivity. Interactivity "estimators" that use some kind of sleep/run -+algorithm are doomed to fail to detect all interactive tasks, and to falsely tag -+tasks that aren't interactive as being so. The reason for this is that it is -+close to impossible to determine that when a task is sleeping, whether it is -+doing it voluntarily, as in a userspace application waiting for input in the -+form of a mouse click or otherwise, or involuntarily, because it is waiting for -+another thread, process, I/O, kernel activity or whatever. Thus, such an -+estimator will introduce corner cases, and more heuristics will be required to -+cope with those corner cases, introducing more corner cases and failed -+interactivity detection and so on. Interactivity in BFS is built into the design -+by virtue of the fact that tasks that are waking up have not used up their quota -+of CPU time, and have earlier effective deadlines, thereby making it very likely -+they will preempt any CPU bound task of equivalent nice level. See below for -+more information on the virtual deadline mechanism. Even if they do not preempt -+a running task, because the rr interval is guaranteed to have a bound upper -+limit on how long a task will wait for, it will be scheduled within a timeframe -+that will not cause visible interface jitter. -+ -+ -+Design details. -+ -+Task insertion. -+ -+BFS inserts tasks into each relevant queue as an O(1) insertion into a double -+linked list. On insertion, *every* running queue is checked to see if the newly -+queued task can run on any idle queue, or preempt the lowest running task on the -+system. This is how the cross-CPU scheduling of BFS achieves significantly lower -+latency per extra CPU the system has. In this case the lookup is, in the worst -+case scenario, O(n) where n is the number of CPUs on the system. -+ -+Data protection. -+ -+BFS has one single lock protecting the process local data of every task in the -+global queue. Thus every insertion, removal and modification of task data in the -+global runqueue needs to grab the global lock. However, once a task is taken by -+a CPU, the CPU has its own local data copy of the running process' accounting -+information which only that CPU accesses and modifies (such as during a -+timer tick) thus allowing the accounting data to be updated lockless. Once a -+CPU has taken a task to run, it removes it from the global queue. Thus the -+global queue only ever has, at most, -+ -+ (number of tasks requesting cpu time) - (number of logical CPUs) + 1 -+ -+tasks in the global queue. This value is relevant for the time taken to look up -+tasks during scheduling. This will increase if many tasks with CPU affinity set -+in their policy to limit which CPUs they're allowed to run on if they outnumber -+the number of CPUs. The +1 is because when rescheduling a task, the CPU's -+currently running task is put back on the queue. Lookup will be described after -+the virtual deadline mechanism is explained. -+ -+Virtual deadline. -+ -+The key to achieving low latency, scheduling fairness, and "nice level" -+distribution in BFS is entirely in the virtual deadline mechanism. The one -+tunable in BFS is the rr_interval, or "round robin interval". This is the -+maximum time two SCHED_OTHER (or SCHED_NORMAL, the common scheduling policy) -+tasks of the same nice level will be running for, or looking at it the other -+way around, the longest duration two tasks of the same nice level will be -+delayed for. When a task requests cpu time, it is given a quota (time_slice) -+equal to the rr_interval and a virtual deadline. The virtual deadline is -+offset from the current time in jiffies by this equation: -+ -+ jiffies + (prio_ratio * rr_interval) -+ -+The prio_ratio is determined as a ratio compared to the baseline of nice -20 -+and increases by 10% per nice level. The deadline is a virtual one only in that -+no guarantee is placed that a task will actually be scheduled by this time, but -+it is used to compare which task should go next. There are three components to -+how a task is next chosen. First is time_slice expiration. If a task runs out -+of its time_slice, it is descheduled, the time_slice is refilled, and the -+deadline reset to that formula above. Second is sleep, where a task no longer -+is requesting CPU for whatever reason. The time_slice and deadline are _not_ -+adjusted in this case and are just carried over for when the task is next -+scheduled. Third is preemption, and that is when a newly waking task is deemed -+higher priority than a currently running task on any cpu by virtue of the fact -+that it has an earlier virtual deadline than the currently running task. The -+earlier deadline is the key to which task is next chosen for the first and -+second cases. Once a task is descheduled, it is put back on the queue, and an -+O(n) lookup of all queued-but-not-running tasks is done to determine which has -+the earliest deadline and that task is chosen to receive CPU next. -+ -+The CPU proportion of different nice tasks works out to be approximately the -+ -+ (prio_ratio difference)^2 -+ -+The reason it is squared is that a task's deadline does not change while it is -+running unless it runs out of time_slice. Thus, even if the time actually -+passes the deadline of another task that is queued, it will not get CPU time -+unless the current running task deschedules, and the time "base" (jiffies) is -+constantly moving. -+ -+Task lookup. -+ -+BFS has 103 priority queues. 100 of these are dedicated to the static priority -+of realtime tasks, and the remaining 3 are, in order of best to worst priority, -+SCHED_ISO (isochronous), SCHED_NORMAL, and SCHED_IDLEPRIO (idle priority -+scheduling). When a task of these priorities is queued, a bitmap of running -+priorities is set showing which of these priorities has tasks waiting for CPU -+time. When a CPU is made to reschedule, the lookup for the next task to get -+CPU time is performed in the following way: -+ -+First the bitmap is checked to see what static priority tasks are queued. If -+any realtime priorities are found, the corresponding queue is checked and the -+first task listed there is taken (provided CPU affinity is suitable) and lookup -+is complete. If the priority corresponds to a SCHED_ISO task, they are also -+taken in FIFO order (as they behave like SCHED_RR). If the priority corresponds -+to either SCHED_NORMAL or SCHED_IDLEPRIO, then the lookup becomes O(n). At this -+stage, every task in the runlist that corresponds to that priority is checked -+to see which has the earliest set deadline, and (provided it has suitable CPU -+affinity) it is taken off the runqueue and given the CPU. If a task has an -+expired deadline, it is taken and the rest of the lookup aborted (as they are -+chosen in FIFO order). -+ -+Thus, the lookup is O(n) in the worst case only, where n is as described -+earlier, as tasks may be chosen before the whole task list is looked over. -+ -+ -+Scalability. -+ -+The major limitations of BFS will be that of scalability, as the separate -+runqueue designs will have less lock contention as the number of CPUs rises. -+However they do not scale linearly even with separate runqueues as multiple -+runqueues will need to be locked concurrently on such designs to be able to -+achieve fair CPU balancing, to try and achieve some sort of nice-level fairness -+across CPUs, and to achieve low enough latency for tasks on a busy CPU when -+other CPUs would be more suited. BFS has the advantage that it requires no -+balancing algorithm whatsoever, as balancing occurs by proxy simply because -+all CPUs draw off the global runqueue, in priority and deadline order. Despite -+the fact that scalability is _not_ the prime concern of BFS, it both shows very -+good scalability to smaller numbers of CPUs and is likely a more scalable design -+at these numbers of CPUs. -+ -+It also has some very low overhead scalability features built into the design -+when it has been deemed their overhead is so marginal that they're worth adding. -+The first is the local copy of the running process' data to the CPU it's running -+on to allow that data to be updated lockless where possible. Then there is -+deference paid to the last CPU a task was running on, by trying that CPU first -+when looking for an idle CPU to use the next time it's scheduled. Finally there -+is the notion of cache locality beyond the last running CPU. The sched_domains -+information is used to determine the relative virtual "cache distance" that -+other CPUs have from the last CPU a task was running on. CPUs with shared -+caches, such as SMT siblings, or multicore CPUs with shared caches, are treated -+as cache local. CPUs without shared caches are treated as not cache local, and -+CPUs on different NUMA nodes are treated as very distant. This "relative cache -+distance" is used by modifying the virtual deadline value when doing lookups. -+Effectively, the deadline is unaltered between "cache local" CPUs, doubled for -+"cache distant" CPUs, and quadrupled for "very distant" CPUs. The reasoning -+behind the doubling of deadlines is as follows. The real cost of migrating a -+task from one CPU to another is entirely dependant on the cache footprint of -+the task, how cache intensive the task is, how long it's been running on that -+CPU to take up the bulk of its cache, how big the CPU cache is, how fast and -+how layered the CPU cache is, how fast a context switch is... and so on. In -+other words, it's close to random in the real world where we do more than just -+one sole workload. The only thing we can be sure of is that it's not free. So -+BFS uses the principle that an idle CPU is a wasted CPU and utilising idle CPUs -+is more important than cache locality, and cache locality only plays a part -+after that. Doubling the effective deadline is based on the premise that the -+"cache local" CPUs will tend to work on the same tasks up to double the number -+of cache local CPUs, and once the workload is beyond that amount, it is likely -+that none of the tasks are cache warm anywhere anyway. The quadrupling for NUMA -+is a value I pulled out of my arse. -+ -+When choosing an idle CPU for a waking task, the cache locality is determined -+according to where the task last ran and then idle CPUs are ranked from best -+to worst to choose the most suitable idle CPU based on cache locality, NUMA -+node locality and hyperthread sibling business. They are chosen in the -+following preference (if idle): -+ -+* Same core, idle or busy cache, idle threads -+* Other core, same cache, idle or busy cache, idle threads. -+* Same node, other CPU, idle cache, idle threads. -+* Same node, other CPU, busy cache, idle threads. -+* Same core, busy threads. -+* Other core, same cache, busy threads. -+* Same node, other CPU, busy threads. -+* Other node, other CPU, idle cache, idle threads. -+* Other node, other CPU, busy cache, idle threads. -+* Other node, other CPU, busy threads. -+ -+This shows the SMT or "hyperthread" awareness in the design as well which will -+choose a real idle core first before a logical SMT sibling which already has -+tasks on the physical CPU. -+ -+Early benchmarking of BFS suggested scalability dropped off at the 16 CPU mark. -+However this benchmarking was performed on an earlier design that was far less -+scalable than the current one so it's hard to know how scalable it is in terms -+of both CPUs (due to the global runqueue) and heavily loaded machines (due to -+O(n) lookup) at this stage. Note that in terms of scalability, the number of -+_logical_ CPUs matters, not the number of _physical_ CPUs. Thus, a dual (2x) -+quad core (4X) hyperthreaded (2X) machine is effectively a 16X. Newer benchmark -+results are very promising indeed, without needing to tweak any knobs, features -+or options. Benchmark contributions are most welcome. -+ -+ -+Features -+ -+As the initial prime target audience for BFS was the average desktop user, it -+was designed to not need tweaking, tuning or have features set to obtain benefit -+from it. Thus the number of knobs and features has been kept to an absolute -+minimum and should not require extra user input for the vast majority of cases. -+There are precisely 2 tunables, and 2 extra scheduling policies. The rr_interval -+and iso_cpu tunables, and the SCHED_ISO and SCHED_IDLEPRIO policies. In addition -+to this, BFS also uses sub-tick accounting. What BFS does _not_ now feature is -+support for CGROUPS. The average user should neither need to know what these -+are, nor should they need to be using them to have good desktop behaviour. -+ -+rr_interval -+ -+There is only one "scheduler" tunable, the round robin interval. This can be -+accessed in -+ -+ /proc/sys/kernel/rr_interval -+ -+The value is in milliseconds, and the default value is set to 6 on a -+uniprocessor machine, and automatically set to a progressively higher value on -+multiprocessor machines. The reasoning behind increasing the value on more CPUs -+is that the effective latency is decreased by virtue of there being more CPUs on -+BFS (for reasons explained above), and increasing the value allows for less -+cache contention and more throughput. Valid values are from 1 to 1000 -+Decreasing the value will decrease latencies at the cost of decreasing -+throughput, while increasing it will improve throughput, but at the cost of -+worsening latencies. The accuracy of the rr interval is limited by HZ resolution -+of the kernel configuration. Thus, the worst case latencies are usually slightly -+higher than this actual value. The default value of 6 is not an arbitrary one. -+It is based on the fact that humans can detect jitter at approximately 7ms, so -+aiming for much lower latencies is pointless under most circumstances. It is -+worth noting this fact when comparing the latency performance of BFS to other -+schedulers. Worst case latencies being higher than 7ms are far worse than -+average latencies not being in the microsecond range. -+ -+Isochronous scheduling. -+ -+Isochronous scheduling is a unique scheduling policy designed to provide -+near-real-time performance to unprivileged (ie non-root) users without the -+ability to starve the machine indefinitely. Isochronous tasks (which means -+"same time") are set using, for example, the schedtool application like so: -+ -+ schedtool -I -e amarok -+ -+This will start the audio application "amarok" as SCHED_ISO. How SCHED_ISO works -+is that it has a priority level between true realtime tasks and SCHED_NORMAL -+which would allow them to preempt all normal tasks, in a SCHED_RR fashion (ie, -+if multiple SCHED_ISO tasks are running, they purely round robin at rr_interval -+rate). However if ISO tasks run for more than a tunable finite amount of time, -+they are then demoted back to SCHED_NORMAL scheduling. This finite amount of -+time is the percentage of _total CPU_ available across the machine, configurable -+as a percentage in the following "resource handling" tunable (as opposed to a -+scheduler tunable): -+ -+ /proc/sys/kernel/iso_cpu -+ -+and is set to 70% by default. It is calculated over a rolling 5 second average -+Because it is the total CPU available, it means that on a multi CPU machine, it -+is possible to have an ISO task running as realtime scheduling indefinitely on -+just one CPU, as the other CPUs will be available. Setting this to 100 is the -+equivalent of giving all users SCHED_RR access and setting it to 0 removes the -+ability to run any pseudo-realtime tasks. -+ -+A feature of BFS is that it detects when an application tries to obtain a -+realtime policy (SCHED_RR or SCHED_FIFO) and the caller does not have the -+appropriate privileges to use those policies. When it detects this, it will -+give the task SCHED_ISO policy instead. Thus it is transparent to the user. -+Because some applications constantly set their policy as well as their nice -+level, there is potential for them to undo the override specified by the user -+on the command line of setting the policy to SCHED_ISO. To counter this, once -+a task has been set to SCHED_ISO policy, it needs superuser privileges to set -+it back to SCHED_NORMAL. This will ensure the task remains ISO and all child -+processes and threads will also inherit the ISO policy. -+ -+Idleprio scheduling. -+ -+Idleprio scheduling is a scheduling policy designed to give out CPU to a task -+_only_ when the CPU would be otherwise idle. The idea behind this is to allow -+ultra low priority tasks to be run in the background that have virtually no -+effect on the foreground tasks. This is ideally suited to distributed computing -+clients (like setiathome, folding, mprime etc) but can also be used to start -+a video encode or so on without any slowdown of other tasks. To avoid this -+policy from grabbing shared resources and holding them indefinitely, if it -+detects a state where the task is waiting on I/O, the machine is about to -+suspend to ram and so on, it will transiently schedule them as SCHED_NORMAL. As -+per the Isochronous task management, once a task has been scheduled as IDLEPRIO, -+it cannot be put back to SCHED_NORMAL without superuser privileges. Tasks can -+be set to start as SCHED_IDLEPRIO with the schedtool command like so: -+ -+ schedtool -D -e ./mprime -+ -+Subtick accounting. -+ -+It is surprisingly difficult to get accurate CPU accounting, and in many cases, -+the accounting is done by simply determining what is happening at the precise -+moment a timer tick fires off. This becomes increasingly inaccurate as the -+timer tick frequency (HZ) is lowered. It is possible to create an application -+which uses almost 100% CPU, yet by being descheduled at the right time, records -+zero CPU usage. While the main problem with this is that there are possible -+security implications, it is also difficult to determine how much CPU a task -+really does use. BFS tries to use the sub-tick accounting from the TSC clock, -+where possible, to determine real CPU usage. This is not entirely reliable, but -+is far more likely to produce accurate CPU usage data than the existing designs -+and will not show tasks as consuming no CPU usage when they actually are. Thus, -+the amount of CPU reported as being used by BFS will more accurately represent -+how much CPU the task itself is using (as is shown for example by the 'time' -+application), so the reported values may be quite different to other schedulers. -+Values reported as the 'load' are more prone to problems with this design, but -+per process values are closer to real usage. When comparing throughput of BFS -+to other designs, it is important to compare the actual completed work in terms -+of total wall clock time taken and total work done, rather than the reported -+"cpu usage". -+ -+ -+Con Kolivas Fri Aug 27 2010 -diff --git a/Documentation/scheduler/sched-MuQSS.txt b/Documentation/scheduler/sched-MuQSS.txt -new file mode 100644 -index 000000000000..ae28b85c9995 ---- /dev/null -+++ b/Documentation/scheduler/sched-MuQSS.txt -@@ -0,0 +1,373 @@ -+MuQSS - The Multiple Queue Skiplist Scheduler by Con Kolivas. -+ -+MuQSS is a per-cpu runqueue variant of the original BFS scheduler with -+one 8 level skiplist per runqueue, and fine grained locking for much more -+scalability. -+ -+ -+Goals. -+ -+The goal of the Multiple Queue Skiplist Scheduler, referred to as MuQSS from -+here on (pronounced mux) is to completely do away with the complex designs of -+the past for the cpu process scheduler and instead implement one that is very -+simple in basic design. The main focus of MuQSS is to achieve excellent desktop -+interactivity and responsiveness without heuristics and tuning knobs that are -+difficult to understand, impossible to model and predict the effect of, and when -+tuned to one workload cause massive detriment to another, while still being -+scalable to many CPUs and processes. -+ -+ -+Design summary. -+ -+MuQSS is best described as per-cpu multiple runqueue, O(log n) insertion, O(1) -+lookup, earliest effective virtual deadline first tickless design, loosely based -+on EEVDF (earliest eligible virtual deadline first) and my previous Staircase -+Deadline scheduler, and evolved from the single runqueue O(n) BFS scheduler. -+Each component shall be described in order to understand the significance of, -+and reasoning for it. -+ -+ -+Design reasoning. -+ -+In BFS, the use of a single runqueue across all CPUs meant that each CPU would -+need to scan the entire runqueue looking for the process with the earliest -+deadline and schedule that next, regardless of which CPU it originally came -+from. This made BFS deterministic with respect to latency and provided -+guaranteed latencies dependent on number of processes and CPUs. The single -+runqueue, however, meant that all CPUs would compete for the single lock -+protecting it, which would lead to increasing lock contention as the number of -+CPUs rose and appeared to limit scalability of common workloads beyond 16 -+logical CPUs. Additionally, the O(n) lookup of the runqueue list obviously -+increased overhead proportionate to the number of queued proecesses and led to -+cache thrashing while iterating over the linked list. -+ -+MuQSS is an evolution of BFS, designed to maintain the same scheduling -+decision mechanism and be virtually deterministic without relying on the -+constrained design of the single runqueue by splitting out the single runqueue -+to be per-CPU and use skiplists instead of linked lists. -+ -+The original reason for going back to a single runqueue design for BFS was that -+once multiple runqueues are introduced, per-CPU or otherwise, there will be -+complex interactions as each runqueue will be responsible for the scheduling -+latency and fairness of the tasks only on its own runqueue, and to achieve -+fairness and low latency across multiple CPUs, any advantage in throughput of -+having CPU local tasks causes other disadvantages. This is due to requiring a -+very complex balancing system to at best achieve some semblance of fairness -+across CPUs and can only maintain relatively low latency for tasks bound to the -+same CPUs, not across them. To increase said fairness and latency across CPUs, -+the advantage of local runqueue locking, which makes for better scalability, is -+lost due to having to grab multiple locks. -+ -+MuQSS works around the problems inherent in multiple runqueue designs by -+making its skip lists priority ordered and through novel use of lockless -+examination of each other runqueue it can decide if it should take the earliest -+deadline task from another runqueue for latency reasons, or for CPU balancing -+reasons. It still does not have a balancing system, choosing to allow the -+next task scheduling decision and task wakeup CPU choice to allow balancing to -+happen by virtue of its choices. -+ -+As a further evolution of the design, MuQSS normally configures sharing of -+runqueues in a logical fashion for when CPU resources are shared for improved -+latency and throughput. By default it shares runqueues and locks between -+multicore siblings. Optionally it can be configured to run with sharing of -+SMT siblings only, all SMP packages or no sharing at all. Additionally it can -+be selected at boot time. -+ -+ -+Design details. -+ -+Custom skip list implementation: -+ -+To avoid the overhead of building up and tearing down skip list structures, -+the variant used by MuQSS has a number of optimisations making it specific for -+its use case in the scheduler. It uses static arrays of 8 'levels' instead of -+building up and tearing down structures dynamically. This makes each runqueue -+only scale O(log N) up to 64k tasks. However as there is one runqueue per CPU -+it means that it scales O(log N) up to 64k x number of logical CPUs which is -+far beyond the realistic task limits each CPU could handle. By being 8 levels -+it also makes the array exactly one cacheline in size. Additionally, each -+skip list node is bidirectional making insertion and removal amortised O(1), -+being O(k) where k is 1-8. Uniquely, we are only ever interested in the very -+first entry in each list at all times with MuQSS, so there is never a need to -+do a search and thus look up is always O(1). In interactive mode, the queues -+will be searched beyond their first entry if the first task is not suitable -+for affinity or SMT nice reasons. -+ -+Task insertion: -+ -+MuQSS inserts tasks into a per CPU runqueue as an O(log N) insertion into -+a custom skip list as described above (based on the original design by William -+Pugh). Insertion is ordered in such a way that there is never a need to do a -+search by ordering tasks according to static priority primarily, and then -+virtual deadline at the time of insertion. -+ -+Niffies: -+ -+Niffies are a monotonic forward moving timer not unlike the "jiffies" but are -+of nanosecond resolution. Niffies are calculated per-runqueue from the high -+resolution TSC timers, and in order to maintain fairness are synchronised -+between CPUs whenever both runqueues are locked concurrently. -+ -+Virtual deadline: -+ -+The key to achieving low latency, scheduling fairness, and "nice level" -+distribution in MuQSS is entirely in the virtual deadline mechanism. The one -+tunable in MuQSS is the rr_interval, or "round robin interval". This is the -+maximum time two SCHED_OTHER (or SCHED_NORMAL, the common scheduling policy) -+tasks of the same nice level will be running for, or looking at it the other -+way around, the longest duration two tasks of the same nice level will be -+delayed for. When a task requests cpu time, it is given a quota (time_slice) -+equal to the rr_interval and a virtual deadline. The virtual deadline is -+offset from the current time in niffies by this equation: -+ -+ niffies + (prio_ratio * rr_interval) -+ -+The prio_ratio is determined as a ratio compared to the baseline of nice -20 -+and increases by 10% per nice level. The deadline is a virtual one only in that -+no guarantee is placed that a task will actually be scheduled by this time, but -+it is used to compare which task should go next. There are three components to -+how a task is next chosen. First is time_slice expiration. If a task runs out -+of its time_slice, it is descheduled, the time_slice is refilled, and the -+deadline reset to that formula above. Second is sleep, where a task no longer -+is requesting CPU for whatever reason. The time_slice and deadline are _not_ -+adjusted in this case and are just carried over for when the task is next -+scheduled. Third is preemption, and that is when a newly waking task is deemed -+higher priority than a currently running task on any cpu by virtue of the fact -+that it has an earlier virtual deadline than the currently running task. The -+earlier deadline is the key to which task is next chosen for the first and -+second cases. -+ -+The CPU proportion of different nice tasks works out to be approximately the -+ -+ (prio_ratio difference)^2 -+ -+The reason it is squared is that a task's deadline does not change while it is -+running unless it runs out of time_slice. Thus, even if the time actually -+passes the deadline of another task that is queued, it will not get CPU time -+unless the current running task deschedules, and the time "base" (niffies) is -+constantly moving. -+ -+Task lookup: -+ -+As tasks are already pre-ordered according to anticipated scheduling order in -+the skip lists, lookup for the next suitable task per-runqueue is always a -+matter of simply selecting the first task in the 0th level skip list entry. -+In order to maintain optimal latency and fairness across CPUs, MuQSS does a -+novel examination of every other runqueue in cache locality order, choosing the -+best task across all runqueues. This provides near-determinism of how long any -+task across the entire system may wait before receiving CPU time. The other -+runqueues are first examine lockless and then trylocked to minimise the -+potential lock contention if they are likely to have a suitable better task. -+Each other runqueue lock is only held for as long as it takes to examine the -+entry for suitability. In "interactive" mode, the default setting, MuQSS will -+look for the best deadline task across all CPUs, while in !interactive mode, -+it will only select a better deadline task from another CPU if it is more -+heavily laden than the current one. -+ -+Lookup is therefore O(k) where k is number of CPUs. -+ -+ -+Latency. -+ -+Through the use of virtual deadlines to govern the scheduling order of normal -+tasks, queue-to-activation latency per runqueue is guaranteed to be bound by -+the rr_interval tunable which is set to 6ms by default. This means that the -+longest a CPU bound task will wait for more CPU is proportional to the number -+of running tasks and in the common case of 0-2 running tasks per CPU, will be -+under the 7ms threshold for human perception of jitter. Additionally, as newly -+woken tasks will have an early deadline from their previous runtime, the very -+tasks that are usually latency sensitive will have the shortest interval for -+activation, usually preempting any existing CPU bound tasks. -+ -+Tickless expiry: -+ -+A feature of MuQSS is that it is not tied to the resolution of the chosen tick -+rate in Hz, instead depending entirely on the high resolution timers where -+possible for sub-millisecond accuracy on timeouts regarless of the underlying -+tick rate. This allows MuQSS to be run with the low overhead of low Hz rates -+such as 100 by default, benefiting from the improved throughput and lower -+power usage it provides. Another advantage of this approach is that in -+combination with the Full No HZ option, which disables ticks on running task -+CPUs instead of just idle CPUs, the tick can be disabled at all times -+regardless of how many tasks are running instead of being limited to just one -+running task. Note that this option is NOT recommended for regular desktop -+users. -+ -+ -+Scalability and balancing. -+ -+Unlike traditional approaches where balancing is a combination of CPU selection -+at task wakeup and intermittent balancing based on a vast array of rules set -+according to architecture, busyness calculations and special case management, -+MuQSS indirectly balances on the fly at task wakeup and next task selection. -+During initialisation, MuQSS creates a cache coherency ordered list of CPUs for -+each logical CPU and uses this to aid task/CPU selection when CPUs are busy. -+Additionally it selects any idle CPUs, if they are available, at any time over -+busy CPUs according to the following preference: -+ -+ * Same thread, idle or busy cache, idle or busy threads -+ * Other core, same cache, idle or busy cache, idle threads. -+ * Same node, other CPU, idle cache, idle threads. -+ * Same node, other CPU, busy cache, idle threads. -+ * Other core, same cache, busy threads. -+ * Same node, other CPU, busy threads. -+ * Other node, other CPU, idle cache, idle threads. -+ * Other node, other CPU, busy cache, idle threads. -+ * Other node, other CPU, busy threads. -+ -+Mux is therefore SMT, MC and Numa aware without the need for extra -+intermittent balancing to maintain CPUs busy and make the most of cache -+coherency. -+ -+ -+Features -+ -+As the initial prime target audience for MuQSS was the average desktop user, it -+was designed to not need tweaking, tuning or have features set to obtain benefit -+from it. Thus the number of knobs and features has been kept to an absolute -+minimum and should not require extra user input for the vast majority of cases. -+There are 3 optional tunables, and 2 extra scheduling policies. The rr_interval, -+interactive, and iso_cpu tunables, and the SCHED_ISO and SCHED_IDLEPRIO -+policies. In addition to this, MuQSS also uses sub-tick accounting. What MuQSS -+does _not_ now feature is support for CGROUPS. The average user should neither -+need to know what these are, nor should they need to be using them to have good -+desktop behaviour. However since some applications refuse to work without -+cgroups, one can enable them with MuQSS as a stub and the filesystem will be -+created which will allow the applications to work. -+ -+rr_interval: -+ -+ /proc/sys/kernel/rr_interval -+ -+The value is in milliseconds, and the default value is set to 6. Valid values -+are from 1 to 1000 Decreasing the value will decrease latencies at the cost of -+decreasing throughput, while increasing it will improve throughput, but at the -+cost of worsening latencies. It is based on the fact that humans can detect -+jitter at approximately 7ms, so aiming for much lower latencies is pointless -+under most circumstances. It is worth noting this fact when comparing the -+latency performance of MuQSS to other schedulers. Worst case latencies being -+higher than 7ms are far worse than average latencies not being in the -+microsecond range. -+ -+interactive: -+ -+ /proc/sys/kernel/interactive -+ -+The value is a simple boolean of 1 for on and 0 for off and is set to on by -+default. Disabling this will disable the near-determinism of MuQSS when -+selecting the next task by not examining all CPUs for the earliest deadline -+task, or which CPU to wake to, instead prioritising CPU balancing for improved -+throughput. Latency will still be bound by rr_interval, but on a per-CPU basis -+instead of across the whole system. -+ -+Runqueue sharing. -+ -+By default MuQSS chooses to share runqueue resources (specifically the skip -+list and locking) between multicore siblings. It is configurable at build time -+to select between None, SMT, MC and SMP, corresponding to no sharing, sharing -+only between simultaneous mulithreading siblings, multicore siblings, or -+symmetric multiprocessing physical packages. Additionally it can be se at -+bootime with the use of the rqshare parameter. The reason for configurability -+is that some architectures have CPUs with many multicore siblings (>= 16) -+where it may be detrimental to throughput to share runqueues and another -+sharing option may be desirable. Additionally, more sharing than usual can -+improve latency on a system-wide level at the expense of throughput if desired. -+ -+The options are: -+none, smt, mc, smp -+ -+eg: -+ rqshare=mc -+ -+Isochronous scheduling: -+ -+Isochronous scheduling is a unique scheduling policy designed to provide -+near-real-time performance to unprivileged (ie non-root) users without the -+ability to starve the machine indefinitely. Isochronous tasks (which means -+"same time") are set using, for example, the schedtool application like so: -+ -+ schedtool -I -e amarok -+ -+This will start the audio application "amarok" as SCHED_ISO. How SCHED_ISO works -+is that it has a priority level between true realtime tasks and SCHED_NORMAL -+which would allow them to preempt all normal tasks, in a SCHED_RR fashion (ie, -+if multiple SCHED_ISO tasks are running, they purely round robin at rr_interval -+rate). However if ISO tasks run for more than a tunable finite amount of time, -+they are then demoted back to SCHED_NORMAL scheduling. This finite amount of -+time is the percentage of CPU available per CPU, configurable as a percentage in -+the following "resource handling" tunable (as opposed to a scheduler tunable): -+ -+iso_cpu: -+ -+ /proc/sys/kernel/iso_cpu -+ -+and is set to 70% by default. It is calculated over a rolling 5 second average -+Because it is the total CPU available, it means that on a multi CPU machine, it -+is possible to have an ISO task running as realtime scheduling indefinitely on -+just one CPU, as the other CPUs will be available. Setting this to 100 is the -+equivalent of giving all users SCHED_RR access and setting it to 0 removes the -+ability to run any pseudo-realtime tasks. -+ -+A feature of MuQSS is that it detects when an application tries to obtain a -+realtime policy (SCHED_RR or SCHED_FIFO) and the caller does not have the -+appropriate privileges to use those policies. When it detects this, it will -+give the task SCHED_ISO policy instead. Thus it is transparent to the user. -+ -+ -+Idleprio scheduling: -+ -+Idleprio scheduling is a scheduling policy designed to give out CPU to a task -+_only_ when the CPU would be otherwise idle. The idea behind this is to allow -+ultra low priority tasks to be run in the background that have virtually no -+effect on the foreground tasks. This is ideally suited to distributed computing -+clients (like setiathome, folding, mprime etc) but can also be used to start a -+video encode or so on without any slowdown of other tasks. To avoid this policy -+from grabbing shared resources and holding them indefinitely, if it detects a -+state where the task is waiting on I/O, the machine is about to suspend to ram -+and so on, it will transiently schedule them as SCHED_NORMAL. Once a task has -+been scheduled as IDLEPRIO, it cannot be put back to SCHED_NORMAL without -+superuser privileges since it is effectively a lower scheduling policy. Tasks -+can be set to start as SCHED_IDLEPRIO with the schedtool command like so: -+ -+schedtool -D -e ./mprime -+ -+Subtick accounting: -+ -+It is surprisingly difficult to get accurate CPU accounting, and in many cases, -+the accounting is done by simply determining what is happening at the precise -+moment a timer tick fires off. This becomes increasingly inaccurate as the timer -+tick frequency (HZ) is lowered. It is possible to create an application which -+uses almost 100% CPU, yet by being descheduled at the right time, records zero -+CPU usage. While the main problem with this is that there are possible security -+implications, it is also difficult to determine how much CPU a task really does -+use. Mux uses sub-tick accounting from the TSC clock to determine real CPU -+usage. Thus, the amount of CPU reported as being used by MuQSS will more -+accurately represent how much CPU the task itself is using (as is shown for -+example by the 'time' application), so the reported values may be quite -+different to other schedulers. When comparing throughput of MuQSS to other -+designs, it is important to compare the actual completed work in terms of total -+wall clock time taken and total work done, rather than the reported "cpu usage". -+ -+Symmetric MultiThreading (SMT) aware nice: -+ -+SMT, a.k.a. hyperthreading, is a very common feature on modern CPUs. While the -+logical CPU count rises by adding thread units to each CPU core, allowing more -+than one task to be run simultaneously on the same core, the disadvantage of it -+is that the CPU power is shared between the tasks, not summating to the power -+of two CPUs. The practical upshot of this is that two tasks running on -+separate threads of the same core run significantly slower than if they had one -+core each to run on. While smart CPU selection allows each task to have a core -+to itself whenever available (as is done on MuQSS), it cannot offset the -+slowdown that occurs when the cores are all loaded and only a thread is left. -+Most of the time this is harmless as the CPU is effectively overloaded at this -+point and the extra thread is of benefit. However when running a niced task in -+the presence of an un-niced task (say nice 19 v nice 0), the nice task gets -+precisely the same amount of CPU power as the unniced one. MuQSS has an -+optional configuration feature known as SMT-NICE which selectively idles the -+secondary niced thread for a period proportional to the nice difference, -+allowing CPU distribution according to nice level to be maintained, at the -+expense of a small amount of extra overhead. If this is configured in on a -+machine without SMT threads, the overhead is minimal. -+ -+ -+Con Kolivas Sat, 29th October 2016 -diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt -index 37a679501ddc..e78109cf3458 100644 ---- a/Documentation/sysctl/kernel.txt -+++ b/Documentation/sysctl/kernel.txt -@@ -41,6 +41,7 @@ show up in /proc/sys/kernel: - - hung_task_check_interval_secs - - hung_task_warnings - - hyperv_record_panic_msg -+- iso_cpu - - kexec_load_disabled - - kptr_restrict - - l2cr [ PPC only ] -@@ -76,6 +77,7 @@ show up in /proc/sys/kernel: - - randomize_va_space - - real-root-dev ==> Documentation/admin-guide/initrd.rst - - reboot-cmd [ SPARC only ] -+- rr_interval - - rtsig-max - - rtsig-nr - - seccomp/ ==> Documentation/userspace-api/seccomp_filter.rst -@@ -97,6 +99,7 @@ show up in /proc/sys/kernel: - - unknown_nmi_panic - - watchdog - - watchdog_thresh -+- yield_type - - version - - ============================================================== -@@ -435,6 +438,16 @@ When kptr_restrict is set to (2), kernel pointers printed using - - ============================================================== - -+iso_cpu: (MuQSS CPU scheduler only). -+ -+This sets the percentage cpu that the unprivileged SCHED_ISO tasks can -+run effectively at realtime priority, averaged over a rolling five -+seconds over the -whole- system, meaning all cpus. -+ -+Set to 70 (percent) by default. -+ -+============================================================== -+ - l2cr: (PPC only) - - This flag controls the L2 cache of G3 processor boards. If -@@ -862,6 +875,20 @@ rebooting. ??? - - ============================================================== - -+rr_interval: (MuQSS CPU scheduler only) -+ -+This is the smallest duration that any cpu process scheduling unit -+will run for. Increasing this value can increase throughput of cpu -+bound tasks substantially but at the expense of increased latencies -+overall. Conversely decreasing it will decrease average and maximum -+latencies but at the expense of throughput. This value is in -+milliseconds and the default value chosen depends on the number of -+cpus available at scheduler initialisation with a minimum of 6. -+ -+Valid values are from 1-1000. -+ -+============================================================== -+ - rtsig-max & rtsig-nr: - - The file rtsig-max can be used to tune the maximum number -@@ -1102,3 +1129,13 @@ The softlockup threshold is (2 * watchdog_thresh). Setting this - tunable to zero will disable lockup detection altogether. - - ============================================================== -+ -+yield_type: (MuQSS CPU scheduler only) -+ -+This determines what type of yield calls to sched_yield will perform. -+ -+ 0: No yield. -+ 1: Yield only to better priority/deadline tasks. (default) -+ 2: Expire timeslice and recalculate deadline. -+ -+============================================================== -diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig -index a7f65313f84a..5233307bf903 100644 ---- a/arch/arc/configs/tb10x_defconfig -+++ b/arch/arc/configs/tb10x_defconfig -@@ -28,7 +28,7 @@ CONFIG_ARC_PLAT_TB10X=y - CONFIG_ARC_CACHE_LINE_SHIFT=5 - CONFIG_HZ=250 - CONFIG_ARC_BUILTIN_DTB_NAME="abilis_tb100_dvk" --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - # CONFIG_COMPACTION is not set - CONFIG_NET=y - CONFIG_PACKET=y -diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig -index e9bc88937b1e..73cde48ad00f 100644 ---- a/arch/arm/configs/bcm2835_defconfig -+++ b/arch/arm/configs/bcm2835_defconfig -@@ -29,7 +29,7 @@ CONFIG_MODULE_UNLOAD=y - CONFIG_ARCH_MULTI_V6=y - CONFIG_ARCH_BCM=y - CONFIG_ARCH_BCM2835=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_AEABI=y - CONFIG_KSM=y - CONFIG_CLEANCACHE=y -diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig -index 7eca43ff69bb..689095192133 100644 ---- a/arch/arm/configs/imx_v6_v7_defconfig -+++ b/arch/arm/configs/imx_v6_v7_defconfig -@@ -48,7 +48,7 @@ CONFIG_PCI_MSI=y - CONFIG_PCI_IMX6=y - CONFIG_SMP=y - CONFIG_ARM_PSCI=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_HIGHMEM=y - CONFIG_FORCE_MAX_ZONEORDER=14 - CONFIG_CMDLINE="noinitrd console=ttymxc0,115200" -diff --git a/arch/arm/configs/mps2_defconfig b/arch/arm/configs/mps2_defconfig -index 0bcdec7cc169..10ceaefa51e0 100644 ---- a/arch/arm/configs/mps2_defconfig -+++ b/arch/arm/configs/mps2_defconfig -@@ -18,7 +18,7 @@ CONFIG_ARCH_MPS2=y - CONFIG_SET_MEM_PARAM=y - CONFIG_DRAM_BASE=0x21000000 - CONFIG_DRAM_SIZE=0x1000000 --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - # CONFIG_ATAGS is not set - CONFIG_ZBOOT_ROM_TEXT=0x0 - CONFIG_ZBOOT_ROM_BSS=0x0 -diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig -index 7b8212857535..6c1b8a1d9d59 100644 ---- a/arch/arm/configs/mxs_defconfig -+++ b/arch/arm/configs/mxs_defconfig -@@ -26,7 +26,7 @@ CONFIG_BLK_DEV_INTEGRITY=y - # CONFIG_ARCH_MULTI_V7 is not set - CONFIG_ARCH_MXS=y - # CONFIG_ARM_THUMB is not set --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_AEABI=y - CONFIG_NET=y - CONFIG_PACKET=y -diff --git a/arch/blackfin/configs/BF518F-EZBRD_defconfig b/arch/blackfin/configs/BF518F-EZBRD_defconfig -new file mode 100644 -index 000000000000..39b91dfa55b5 ---- /dev/null -+++ b/arch/blackfin/configs/BF518F-EZBRD_defconfig -@@ -0,0 +1,121 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF518=y -+CONFIG_IRQ_TIMER0=12 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_JEDECPROBE=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+CONFIG_NET_BFIN=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+# CONFIG_NET_VENDOR_SMSC is not set -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_USB_SUPPORT is not set -+CONFIG_MMC=y -+CONFIG_SDH_BFIN=y -+CONFIG_SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=m -+# CONFIG_DNOTIFY is not set -+CONFIG_VFAT_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRC_CCITT=m -diff --git a/arch/blackfin/configs/BF526-EZBRD_defconfig b/arch/blackfin/configs/BF526-EZBRD_defconfig -new file mode 100644 -index 000000000000..675cadb3a0c4 ---- /dev/null -+++ b/arch/blackfin/configs/BF526-EZBRD_defconfig -@@ -0,0 +1,158 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF526=y -+CONFIG_IRQ_TIMER0=12 -+CONFIG_BFIN526_EZBRD=y -+CONFIG_IRQ_USB_INT0=11 -+CONFIG_IRQ_USB_INT1=11 -+CONFIG_IRQ_USB_INT2=11 -+CONFIG_IRQ_USB_DMA=11 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_INTELEXT=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_PHYSMAP=y -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_NAND=m -+CONFIG_MTD_SPI_NOR=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_SCSI=y -+# CONFIG_SCSI_PROC_FS is not set -+CONFIG_BLK_DEV_SD=y -+CONFIG_BLK_DEV_SR=m -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_NETDEVICES=y -+CONFIG_NET_BFIN=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+# CONFIG_NET_VENDOR_SMSC is not set -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT_FF_MEMLESS=m -+# CONFIG_INPUT_MOUSEDEV is not set -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_HID_A4TECH=y -+CONFIG_HID_APPLE=y -+CONFIG_HID_BELKIN=y -+CONFIG_HID_CHERRY=y -+CONFIG_HID_CHICONY=y -+CONFIG_HID_CYPRESS=y -+CONFIG_HID_EZKEY=y -+CONFIG_HID_GYRATION=y -+CONFIG_HID_LOGITECH=y -+CONFIG_HID_MICROSOFT=y -+CONFIG_HID_MONTEREY=y -+CONFIG_HID_PANTHERLORD=y -+CONFIG_HID_PETALYNX=y -+CONFIG_HID_SAMSUNG=y -+CONFIG_HID_SONY=y -+CONFIG_HID_SUNPLUS=y -+CONFIG_USB=y -+# CONFIG_USB_DEVICE_CLASS is not set -+CONFIG_USB_OTG_BLACKLIST_HUB=y -+CONFIG_USB_MON=y -+CONFIG_USB_STORAGE=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=m -+# CONFIG_DNOTIFY is not set -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_VFAT_FS=m -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRC_CCITT=m -diff --git a/arch/blackfin/configs/BF527-EZKIT-V2_defconfig b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig -new file mode 100644 -index 000000000000..4c517c443af5 ---- /dev/null -+++ b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig -@@ -0,0 +1,188 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF527=y -+CONFIG_BF_REV_0_2=y -+CONFIG_BFIN527_EZKIT_V2=y -+CONFIG_IRQ_USB_INT0=11 -+CONFIG_IRQ_USB_INT1=11 -+CONFIG_IRQ_USB_INT2=11 -+CONFIG_IRQ_USB_DMA=11 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+CONFIG_BFIN_SIR0=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_JEDECPROBE=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_NAND=m -+CONFIG_MTD_SPI_NOR=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_SCSI=y -+# CONFIG_SCSI_PROC_FS is not set -+CONFIG_BLK_DEV_SD=y -+CONFIG_BLK_DEV_SR=m -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_NETDEVICES=y -+CONFIG_NET_BFIN=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+# CONFIG_NET_VENDOR_SMSC is not set -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT_FF_MEMLESS=m -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=y -+CONFIG_KEYBOARD_ADP5520=y -+# CONFIG_KEYBOARD_ATKBD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_TOUCHSCREEN=y -+CONFIG_TOUCHSCREEN_AD7879=y -+CONFIG_TOUCHSCREEN_AD7879_I2C=y -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_PMIC_ADP5520=y -+CONFIG_FB=y -+CONFIG_FB_BFIN_LQ035Q1=y -+CONFIG_BACKLIGHT_LCD_SUPPORT=y -+CONFIG_FRAMEBUFFER_CONSOLE=y -+CONFIG_LOGO=y -+# CONFIG_LOGO_LINUX_MONO is not set -+# CONFIG_LOGO_LINUX_VGA16 is not set -+# CONFIG_LOGO_LINUX_CLUT224 is not set -+# CONFIG_LOGO_BLACKFIN_VGA16 is not set -+CONFIG_SOUND=y -+CONFIG_SND=y -+CONFIG_SND_SOC=y -+CONFIG_SND_BF5XX_I2S=y -+CONFIG_SND_BF5XX_SOC_SSM2602=y -+CONFIG_HID_A4TECH=y -+CONFIG_HID_APPLE=y -+CONFIG_HID_BELKIN=y -+CONFIG_HID_CHERRY=y -+CONFIG_HID_CHICONY=y -+CONFIG_HID_CYPRESS=y -+CONFIG_HID_EZKEY=y -+CONFIG_HID_GYRATION=y -+CONFIG_HID_LOGITECH=y -+CONFIG_HID_MICROSOFT=y -+CONFIG_HID_MONTEREY=y -+CONFIG_HID_PANTHERLORD=y -+CONFIG_HID_PETALYNX=y -+CONFIG_HID_SAMSUNG=y -+CONFIG_HID_SONY=y -+CONFIG_HID_SUNPLUS=y -+CONFIG_USB=y -+# CONFIG_USB_DEVICE_CLASS is not set -+CONFIG_USB_OTG_BLACKLIST_HUB=y -+CONFIG_USB_MON=y -+CONFIG_USB_MUSB_HDRC=y -+CONFIG_USB_MUSB_BLACKFIN=y -+CONFIG_USB_STORAGE=y -+CONFIG_USB_GADGET=y -+CONFIG_NEW_LEDS=y -+CONFIG_LEDS_CLASS=y -+CONFIG_LEDS_ADP5520=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=m -+# CONFIG_DNOTIFY is not set -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_UDF_FS=m -+CONFIG_VFAT_FS=m -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig -new file mode 100644 -index 000000000000..bf8df3e6cf02 ---- /dev/null -+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig -@@ -0,0 +1,181 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF527=y -+CONFIG_BF_REV_0_1=y -+CONFIG_IRQ_USB_INT0=11 -+CONFIG_IRQ_USB_INT1=11 -+CONFIG_IRQ_USB_INT2=11 -+CONFIG_IRQ_USB_DMA=11 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+CONFIG_BFIN_SIR0=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_JEDECPROBE=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_NAND=m -+CONFIG_MTD_SPI_NOR=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_SCSI=y -+# CONFIG_SCSI_PROC_FS is not set -+CONFIG_BLK_DEV_SD=y -+CONFIG_BLK_DEV_SR=m -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_NETDEVICES=y -+CONFIG_NET_BFIN=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+# CONFIG_NET_VENDOR_SMSC is not set -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT_FF_MEMLESS=m -+# CONFIG_INPUT_MOUSEDEV is not set -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_FB=y -+CONFIG_FB_BFIN_T350MCQB=y -+CONFIG_BACKLIGHT_LCD_SUPPORT=y -+CONFIG_LCD_LTV350QV=m -+CONFIG_FRAMEBUFFER_CONSOLE=y -+CONFIG_LOGO=y -+# CONFIG_LOGO_LINUX_MONO is not set -+# CONFIG_LOGO_LINUX_VGA16 is not set -+# CONFIG_LOGO_LINUX_CLUT224 is not set -+# CONFIG_LOGO_BLACKFIN_VGA16 is not set -+CONFIG_SOUND=y -+CONFIG_SND=y -+CONFIG_SND_SOC=y -+CONFIG_SND_BF5XX_I2S=y -+CONFIG_SND_BF5XX_SOC_SSM2602=y -+CONFIG_HID_A4TECH=y -+CONFIG_HID_APPLE=y -+CONFIG_HID_BELKIN=y -+CONFIG_HID_CHERRY=y -+CONFIG_HID_CHICONY=y -+CONFIG_HID_CYPRESS=y -+CONFIG_HID_EZKEY=y -+CONFIG_HID_GYRATION=y -+CONFIG_HID_LOGITECH=y -+CONFIG_HID_MICROSOFT=y -+CONFIG_HID_MONTEREY=y -+CONFIG_HID_PANTHERLORD=y -+CONFIG_HID_PETALYNX=y -+CONFIG_HID_SAMSUNG=y -+CONFIG_HID_SONY=y -+CONFIG_HID_SUNPLUS=y -+CONFIG_USB=y -+# CONFIG_USB_DEVICE_CLASS is not set -+CONFIG_USB_OTG_BLACKLIST_HUB=y -+CONFIG_USB_MON=y -+CONFIG_USB_MUSB_HDRC=y -+CONFIG_MUSB_PIO_ONLY=y -+CONFIG_USB_MUSB_BLACKFIN=y -+CONFIG_MUSB_PIO_ONLY=y -+CONFIG_USB_STORAGE=y -+CONFIG_USB_GADGET=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=m -+# CONFIG_DNOTIFY is not set -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_UDF_FS=m -+CONFIG_VFAT_FS=m -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF527-TLL6527M_defconfig b/arch/blackfin/configs/BF527-TLL6527M_defconfig -new file mode 100644 -index 000000000000..0220b3b15c53 ---- /dev/null -+++ b/arch/blackfin/configs/BF527-TLL6527M_defconfig -@@ -0,0 +1,178 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_LOCALVERSION="DEV_0-1_pre2010" -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+CONFIG_PREEMPT=y -+CONFIG_BF527=y -+CONFIG_BF_REV_0_2=y -+CONFIG_BFIN527_TLL6527M=y -+CONFIG_BF527_UART1_PORTG=y -+CONFIG_IRQ_USB_INT0=11 -+CONFIG_IRQ_USB_INT1=11 -+CONFIG_IRQ_USB_INT2=11 -+CONFIG_IRQ_USB_DMA=11 -+CONFIG_BOOT_LOAD=0x400000 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=y -+CONFIG_DMA_UNCACHED_2M=y -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_0=0xFFC2 -+CONFIG_BANK_1=0xFFC2 -+CONFIG_BANK_2=0xFFC2 -+CONFIG_BANK_3=0xFFC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+CONFIG_BFIN_SIR0=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_INTELEXT=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=y -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_GPIO_ADDR=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_SCSI=y -+# CONFIG_SCSI_PROC_FS is not set -+CONFIG_BLK_DEV_SD=y -+CONFIG_BLK_DEV_SR=m -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_NETDEVICES=y -+CONFIG_NET_ETHERNET=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=y -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_TOUCHSCREEN=y -+CONFIG_TOUCHSCREEN_AD7879=m -+CONFIG_INPUT_MISC=y -+CONFIG_INPUT_AD714X=y -+CONFIG_INPUT_ADXL34X=y -+# CONFIG_SERIO is not set -+CONFIG_BFIN_PPI=m -+CONFIG_BFIN_SIMPLE_TIMER=m -+CONFIG_BFIN_SPORT=m -+# CONFIG_CONSOLE_TRANSLATIONS is not set -+# CONFIG_DEVKMEM is not set -+CONFIG_BFIN_JTAG_COMM=m -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_LEGACY_PTYS is not set -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C_CHARDEV=y -+# CONFIG_I2C_HELPER_AUTO is not set -+CONFIG_I2C_SMBUS=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_MEDIA_SUPPORT=y -+CONFIG_VIDEO_DEV=y -+# CONFIG_MEDIA_TUNER_CUSTOMISE is not set -+CONFIG_VIDEO_HELPER_CHIPS_AUTO=y -+CONFIG_VIDEO_BLACKFIN_CAM=m -+CONFIG_OV9655=y -+CONFIG_FB=y -+CONFIG_BACKLIGHT_LCD_SUPPORT=y -+CONFIG_FRAMEBUFFER_CONSOLE=y -+CONFIG_FONTS=y -+CONFIG_FONT_6x11=y -+CONFIG_LOGO=y -+# CONFIG_LOGO_LINUX_MONO is not set -+# CONFIG_LOGO_LINUX_VGA16 is not set -+# CONFIG_LOGO_LINUX_CLUT224 is not set -+# CONFIG_LOGO_BLACKFIN_VGA16 is not set -+CONFIG_SOUND=y -+CONFIG_SND=y -+CONFIG_SND_MIXER_OSS=y -+CONFIG_SND_PCM_OSS=y -+CONFIG_SND_SOC=y -+CONFIG_SND_BF5XX_I2S=y -+CONFIG_SND_BF5XX_SOC_SSM2602=y -+# CONFIG_HID_SUPPORT is not set -+# CONFIG_USB_SUPPORT is not set -+CONFIG_MMC=m -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=y -+# CONFIG_DNOTIFY is not set -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_UDF_FS=m -+CONFIG_MSDOS_FS=y -+CONFIG_VFAT_FS=y -+CONFIG_JFFS2_FS=y -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+# CONFIG_RPCSEC_GSS_KRB5 is not set -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_KERNEL=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRC7=m -diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig -new file mode 100644 -index 000000000000..6023e3fd2c48 ---- /dev/null -+++ b/arch/blackfin/configs/BF533-EZKIT_defconfig -@@ -0,0 +1,114 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BFIN533_EZKIT=y -+CONFIG_TIMER0=11 -+CONFIG_CLKIN_HZ=27000000 -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0xAAC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_JEDECPROBE=y -+CONFIG_MTD_CFI_AMDSTD=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=y -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_PHYSMAP=y -+CONFIG_MTD_PLATRAM=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+CONFIG_SMC91X=y -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT=m -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_USB_SUPPORT is not set -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig -new file mode 100644 -index 000000000000..f5cd0f18b711 ---- /dev/null -+++ b/arch/blackfin/configs/BF533-STAMP_defconfig -@@ -0,0 +1,124 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_TIMER0=11 -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0xAAC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=m -+CONFIG_MTD_CFI_AMDSTD=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+CONFIG_SMC91X=y -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=m -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_GPIO=m -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_FB=m -+CONFIG_FIRMWARE_EDID=y -+CONFIG_SOUND=m -+CONFIG_SND=m -+CONFIG_SND_MIXER_OSS=m -+CONFIG_SND_PCM_OSS=m -+CONFIG_SND_SOC=m -+CONFIG_SND_BF5XX_I2S=m -+CONFIG_SND_BF5XX_SOC_AD73311=m -+# CONFIG_USB_SUPPORT is not set -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig -new file mode 100644 -index 000000000000..48085fde7f9e ---- /dev/null -+++ b/arch/blackfin/configs/BF537-STAMP_defconfig -@@ -0,0 +1,136 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF537=y -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_CAN=m -+CONFIG_CAN_RAW=m -+CONFIG_CAN_BCM=m -+CONFIG_CAN_BFIN=m -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+CONFIG_BFIN_SIR1=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=m -+CONFIG_MTD_CFI_AMDSTD=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_PHYSMAP=m -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_SPI_NOR=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+CONFIG_NET_BFIN=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+# CONFIG_NET_VENDOR_SMSC is not set -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=m -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_BLACKFIN_TWI=m -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_FB=m -+CONFIG_FIRMWARE_EDID=y -+CONFIG_BACKLIGHT_LCD_SUPPORT=y -+CONFIG_SOUND=m -+CONFIG_SND=m -+CONFIG_SND_MIXER_OSS=m -+CONFIG_SND_PCM_OSS=m -+CONFIG_SND_SOC=m -+CONFIG_SND_BF5XX_I2S=m -+CONFIG_SND_BF5XX_SOC_AD73311=m -+# CONFIG_USB_SUPPORT is not set -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF538-EZKIT_defconfig b/arch/blackfin/configs/BF538-EZKIT_defconfig -new file mode 100644 -index 000000000000..12deeaaef3cb ---- /dev/null -+++ b/arch/blackfin/configs/BF538-EZKIT_defconfig -@@ -0,0 +1,133 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF538=y -+CONFIG_IRQ_TIMER0=12 -+CONFIG_IRQ_TIMER1=12 -+CONFIG_IRQ_TIMER2=12 -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_PM=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_CAN=m -+CONFIG_CAN_RAW=m -+CONFIG_CAN_BCM=m -+CONFIG_CAN_DEV=m -+CONFIG_CAN_BFIN=m -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=m -+CONFIG_MTD_CFI_AMDSTD=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_PHYSMAP=m -+CONFIG_MTD_NAND=m -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+CONFIG_PHYLIB=y -+CONFIG_SMSC_PHY=y -+CONFIG_NET_ETHERNET=y -+CONFIG_SMC91X=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_TOUCHSCREEN=y -+CONFIG_TOUCHSCREEN_AD7879=y -+CONFIG_TOUCHSCREEN_AD7879_SPI=y -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_DEVKMEM is not set -+CONFIG_BFIN_JTAG_COMM=m -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+CONFIG_SERIAL_BFIN_UART1=y -+CONFIG_SERIAL_BFIN_UART2=y -+# CONFIG_LEGACY_PTYS is not set -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=m -+CONFIG_I2C_BLACKFIN_TWI=m -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_FB=m -+CONFIG_FB_BFIN_LQ035Q1=m -+# CONFIG_USB_SUPPORT is not set -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_SMB_FS=m -+CONFIG_DEBUG_KERNEL=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig -new file mode 100644 -index 000000000000..6a68ffc55b5a ---- /dev/null -+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig -@@ -0,0 +1,207 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF548_std=y -+CONFIG_IRQ_TIMER0=11 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_CACHELINE_ALIGNED_L1=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_DMA_UNCACHED_2M=y -+CONFIG_BFIN_EXTMEM_WRITETHROUGH=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_EBIU_MBSCTLVAL=0x0 -+CONFIG_EBIU_MODEVAL=0x1 -+CONFIG_EBIU_FCTLVAL=0x6 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_CAN=m -+CONFIG_CAN_RAW=m -+CONFIG_CAN_BCM=m -+CONFIG_CAN_BFIN=m -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRTTY_SIR=m -+CONFIG_BFIN_SIR=m -+CONFIG_BFIN_SIR3=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+CONFIG_FW_LOADER=m -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_INTELEXT=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_PHYSMAP=y -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_NAND=y -+CONFIG_MTD_NAND_BF5XX=y -+# CONFIG_MTD_NAND_BF5XX_HWECC is not set -+CONFIG_MTD_SPI_NOR=y -+CONFIG_BLK_DEV_RAM=y -+# CONFIG_SCSI_PROC_FS is not set -+CONFIG_BLK_DEV_SD=y -+CONFIG_BLK_DEV_SR=m -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_ATA=y -+# CONFIG_SATA_PMP is not set -+CONFIG_PATA_BF54X=y -+CONFIG_NETDEVICES=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+CONFIG_SMSC911X=y -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT_FF_MEMLESS=m -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+CONFIG_INPUT_EVBUG=m -+# CONFIG_KEYBOARD_ATKBD is not set -+CONFIG_KEYBOARD_BFIN=y -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_TOUCHSCREEN=y -+CONFIG_TOUCHSCREEN_AD7877=m -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_FB=y -+CONFIG_FIRMWARE_EDID=y -+CONFIG_FB_BF54X_LQ043=y -+CONFIG_FRAMEBUFFER_CONSOLE=y -+CONFIG_FONTS=y -+CONFIG_FONT_6x11=y -+CONFIG_LOGO=y -+# CONFIG_LOGO_LINUX_MONO is not set -+# CONFIG_LOGO_LINUX_VGA16 is not set -+# CONFIG_LOGO_LINUX_CLUT224 is not set -+# CONFIG_LOGO_BLACKFIN_VGA16 is not set -+CONFIG_SOUND=y -+CONFIG_SND=y -+CONFIG_SND_MIXER_OSS=y -+CONFIG_SND_PCM_OSS=y -+CONFIG_SND_SOC=y -+CONFIG_SND_BF5XX_AC97=y -+CONFIG_SND_BF5XX_SOC_AD1980=y -+CONFIG_HID_A4TECH=y -+CONFIG_HID_APPLE=y -+CONFIG_HID_BELKIN=y -+CONFIG_HID_CHERRY=y -+CONFIG_HID_CHICONY=y -+CONFIG_HID_CYPRESS=y -+CONFIG_HID_EZKEY=y -+CONFIG_HID_GYRATION=y -+CONFIG_HID_LOGITECH=y -+CONFIG_HID_MICROSOFT=y -+CONFIG_HID_MONTEREY=y -+CONFIG_HID_PANTHERLORD=y -+CONFIG_HID_PETALYNX=y -+CONFIG_HID_SAMSUNG=y -+CONFIG_HID_SONY=y -+CONFIG_HID_SUNPLUS=y -+CONFIG_USB=y -+# CONFIG_USB_DEVICE_CLASS is not set -+CONFIG_USB_OTG_BLACKLIST_HUB=y -+CONFIG_USB_MON=y -+CONFIG_USB_MUSB_HDRC=y -+CONFIG_USB_MUSB_BLACKFIN=y -+CONFIG_USB_STORAGE=y -+CONFIG_USB_GADGET=y -+CONFIG_MMC=y -+CONFIG_MMC_BLOCK=m -+CONFIG_SDH_BFIN=y -+CONFIG_SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+# CONFIG_DNOTIFY is not set -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_ZISOFS=y -+CONFIG_MSDOS_FS=m -+CONFIG_VFAT_FS=m -+CONFIG_NTFS_FS=m -+CONFIG_NTFS_RW=y -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_NFSD=m -+CONFIG_NFSD_V3=y -+CONFIG_CIFS=y -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF561-ACVILON_defconfig b/arch/blackfin/configs/BF561-ACVILON_defconfig -new file mode 100644 -index 000000000000..e9f3ba783a4e ---- /dev/null -+++ b/arch/blackfin/configs/BF561-ACVILON_defconfig -@@ -0,0 +1,149 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_SYSFS_DEPRECATED_V2=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+CONFIG_PREEMPT=y -+CONFIG_BF561=y -+CONFIG_BF_REV_0_5=y -+CONFIG_IRQ_TIMER0=10 -+CONFIG_BFIN561_ACVILON=y -+# CONFIG_BF561_COREB is not set -+CONFIG_CLKIN_HZ=12000000 -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=y -+CONFIG_DMA_UNCACHED_4M=y -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_0=0x99b2 -+CONFIG_BANK_1=0x3350 -+CONFIG_BANK_3=0xAAC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+CONFIG_SYN_COOKIES=y -+# CONFIG_INET_LRO is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_PLATRAM=y -+CONFIG_MTD_PHRAM=y -+CONFIG_MTD_BLOCK2MTD=y -+CONFIG_MTD_NAND=y -+CONFIG_MTD_NAND_PLATFORM=y -+CONFIG_BLK_DEV_LOOP=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_BLK_DEV_RAM_COUNT=2 -+CONFIG_BLK_DEV_RAM_SIZE=16384 -+CONFIG_SCSI=y -+# CONFIG_SCSI_PROC_FS is not set -+CONFIG_BLK_DEV_SD=y -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_NETDEVICES=y -+CONFIG_NET_ETHERNET=y -+CONFIG_SMSC911X=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_PIO=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_PCA_PLATFORM=y -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_SPI_SPIDEV=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+CONFIG_GPIO_PCF857X=y -+CONFIG_SENSORS_LM75=y -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_SOUND=y -+CONFIG_SND=y -+CONFIG_SND_MIXER_OSS=y -+CONFIG_SND_PCM_OSS=y -+# CONFIG_SND_DRIVERS is not set -+# CONFIG_SND_USB is not set -+CONFIG_SND_SOC=y -+CONFIG_SND_BF5XX_I2S=y -+CONFIG_SND_BF5XX_SPORT_NUM=1 -+CONFIG_USB=y -+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y -+# CONFIG_USB_DEVICE_CLASS is not set -+CONFIG_USB_MON=y -+CONFIG_USB_STORAGE=y -+CONFIG_USB_SERIAL=y -+CONFIG_USB_SERIAL_FTDI_SIO=y -+CONFIG_USB_SERIAL_PL2303=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_DS1307=y -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+CONFIG_EXT2_FS_POSIX_ACL=y -+CONFIG_EXT2_FS_SECURITY=y -+# CONFIG_DNOTIFY is not set -+CONFIG_MSDOS_FS=y -+CONFIG_VFAT_FS=y -+CONFIG_FAT_DEFAULT_CODEPAGE=866 -+CONFIG_FAT_DEFAULT_IOCHARSET="cp1251" -+CONFIG_NTFS_FS=y -+CONFIG_CONFIGFS_FS=y -+CONFIG_JFFS2_FS=y -+CONFIG_JFFS2_COMPRESSION_OPTIONS=y -+# CONFIG_JFFS2_ZLIB is not set -+CONFIG_JFFS2_LZO=y -+# CONFIG_JFFS2_RTIME is not set -+CONFIG_JFFS2_CMODE_FAVOURLZO=y -+CONFIG_CRAMFS=y -+CONFIG_MINIX_FS=y -+CONFIG_NFS_FS=y -+CONFIG_NFS_V3=y -+CONFIG_ROOT_NFS=y -+CONFIG_NLS_DEFAULT="cp1251" -+CONFIG_NLS_CODEPAGE_866=y -+CONFIG_NLS_CODEPAGE_1251=y -+CONFIG_NLS_KOI8_R=y -+CONFIG_NLS_UTF8=y -+CONFIG_DEBUG_KERNEL=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+# CONFIG_DEBUG_BUGVERBOSE is not set -+CONFIG_DEBUG_INFO=y -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set -+CONFIG_CPLB_INFO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig -new file mode 100644 -index 000000000000..89b75a6c3fab ---- /dev/null -+++ b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig -@@ -0,0 +1,112 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF561=y -+CONFIG_SMP=y -+CONFIG_IRQ_TIMER0=10 -+CONFIG_CLKIN_HZ=30000000 -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0xAAC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_AMDSTD=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_PHYSMAP=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+CONFIG_SMC91X=y -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT=m -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_USB_SUPPORT is not set -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig -new file mode 100644 -index 000000000000..67b3d2f419ba ---- /dev/null -+++ b/arch/blackfin/configs/BF561-EZKIT_defconfig -@@ -0,0 +1,114 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF561=y -+CONFIG_IRQ_TIMER0=10 -+CONFIG_CLKIN_HZ=30000000 -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_BFIN_EXTMEM_WRITETHROUGH=y -+CONFIG_BFIN_L2_DCACHEABLE=y -+CONFIG_BFIN_L2_WRITETHROUGH=y -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0xAAC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_AMDSTD=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_PHYSMAP=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+CONFIG_SMC91X=y -+# CONFIG_NET_VENDOR_STMICRO is not set -+# CONFIG_WLAN is not set -+CONFIG_INPUT=m -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_JTAG_COMM=m -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_USB_SUPPORT is not set -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -diff --git a/arch/blackfin/configs/BF609-EZKIT_defconfig b/arch/blackfin/configs/BF609-EZKIT_defconfig -new file mode 100644 -index 000000000000..8cc75d4218fb ---- /dev/null -+++ b/arch/blackfin/configs/BF609-EZKIT_defconfig -@@ -0,0 +1,154 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_EXPERT=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF609=y -+CONFIG_PINT1_ASSIGN=0x01010000 -+CONFIG_PINT2_ASSIGN=0x07000101 -+CONFIG_PINT3_ASSIGN=0x02020303 -+CONFIG_IP_CHECKSUM_L1=y -+CONFIG_SYSCALL_TAB_L1=y -+CONFIG_CPLB_SWITCH_TAB_L1=y -+# CONFIG_APP_STACK_L1 is not set -+# CONFIG_BFIN_INS_LOWOVERHEAD is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_PM_BFIN_WAKE_PE12=y -+CONFIG_PM_BFIN_WAKE_PE12_POL=1 -+CONFIG_CPU_FREQ=y -+CONFIG_CPU_FREQ_GOV_POWERSAVE=y -+CONFIG_CPU_FREQ_GOV_ONDEMAND=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+CONFIG_IP_PNP_DHCP=y -+CONFIG_IP_PNP_BOOTP=y -+CONFIG_IP_PNP_RARP=y -+# CONFIG_IPV6 is not set -+CONFIG_NETFILTER=y -+CONFIG_CAN=y -+CONFIG_CAN_BFIN=y -+CONFIG_IRDA=y -+CONFIG_IRTTY_SIR=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+CONFIG_FW_LOADER=m -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_INTELEXT=y -+CONFIG_MTD_CFI_STAA=y -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_PHYSMAP=y -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_SPI_NOR=y -+CONFIG_MTD_UBI=m -+CONFIG_SCSI=y -+CONFIG_BLK_DEV_SD=y -+CONFIG_NETDEVICES=y -+# CONFIG_NET_VENDOR_BROADCOM is not set -+# CONFIG_NET_VENDOR_CHELSIO is not set -+# CONFIG_NET_VENDOR_INTEL is not set -+# CONFIG_NET_VENDOR_MARVELL is not set -+# CONFIG_NET_VENDOR_MICREL is not set -+# CONFIG_NET_VENDOR_MICROCHIP is not set -+# CONFIG_NET_VENDOR_NATSEMI is not set -+# CONFIG_NET_VENDOR_SEEQ is not set -+# CONFIG_NET_VENDOR_SMSC is not set -+CONFIG_STMMAC_ETH=y -+CONFIG_STMMAC_IEEE1588=y -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=y -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+CONFIG_INPUT_BFIN_ROTARY=y -+# CONFIG_SERIO is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_BFIN_SIMPLE_TIMER=m -+# CONFIG_BFIN_CRC is not set -+CONFIG_BFIN_LINKPORT=y -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_ADI_V3=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+CONFIG_PINCTRL_MCP23S08=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_SOUND=m -+CONFIG_SND=m -+CONFIG_SND_MIXER_OSS=m -+CONFIG_SND_PCM_OSS=m -+# CONFIG_SND_DRIVERS is not set -+# CONFIG_SND_SPI is not set -+# CONFIG_SND_USB is not set -+CONFIG_SND_SOC=m -+CONFIG_USB=y -+CONFIG_USB_MUSB_HDRC=y -+CONFIG_USB_MUSB_BLACKFIN=m -+CONFIG_USB_STORAGE=y -+CONFIG_USB_GADGET=y -+CONFIG_USB_GADGET_MUSB_HDRC=y -+CONFIG_USB_ZERO=y -+CONFIG_MMC=y -+CONFIG_SDH_BFIN=y -+# CONFIG_IOMMU_SUPPORT is not set -+CONFIG_EXT2_FS=y -+# CONFIG_DNOTIFY is not set -+CONFIG_MSDOS_FS=y -+CONFIG_VFAT_FS=y -+CONFIG_JFFS2_FS=m -+CONFIG_UBIFS_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NLS_CODEPAGE_437=y -+CONFIG_NLS_ISO8859_1=y -+CONFIG_DEBUG_FS=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+CONFIG_FRAME_POINTER=y -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_BFIN_PSEUDODBG_INSNS=y -+CONFIG_CRYPTO_HMAC=m -+CONFIG_CRYPTO_MD4=m -+CONFIG_CRYPTO_MD5=m -+CONFIG_CRYPTO_ARC4=m -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRYPTO_DEV_BFIN_CRC=m -diff --git a/arch/blackfin/configs/BlackStamp_defconfig b/arch/blackfin/configs/BlackStamp_defconfig -new file mode 100644 -index 000000000000..9faf0ec7007f ---- /dev/null -+++ b/arch/blackfin/configs/BlackStamp_defconfig -@@ -0,0 +1,108 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_SYSFS_DEPRECATED_V2=y -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+CONFIG_MODULE_FORCE_UNLOAD=y -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+CONFIG_PREEMPT=y -+CONFIG_BF532=y -+CONFIG_BF_REV_0_5=y -+CONFIG_BLACKSTAMP=y -+CONFIG_TIMER0=11 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_ROMKERNEL=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=y -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0xAAC2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_BINFMT_SHARED_FLAT=y -+CONFIG_PM=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_LRO is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=m -+CONFIG_MTD_CFI_AMDSTD=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_M25P80=y -+CONFIG_MTD_SPI_NOR=y -+CONFIG_BLK_DEV_LOOP=y -+CONFIG_BLK_DEV_NBD=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_MISC_DEVICES=y -+CONFIG_EEPROM_AT25=y -+CONFIG_NETDEVICES=y -+CONFIG_NET_ETHERNET=y -+CONFIG_SMC91X=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_HW_RANDOM=y -+CONFIG_I2C=m -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_GPIO=m -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_SPI_SPIDEV=m -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_USB_SUPPORT is not set -+CONFIG_MMC=y -+CONFIG_MMC_SPI=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+# CONFIG_DNOTIFY is not set -+CONFIG_MSDOS_FS=y -+CONFIG_VFAT_FS=y -+CONFIG_JFFS2_FS=y -+CONFIG_NFS_FS=y -+CONFIG_NFS_V3=y -+CONFIG_NFS_V4=y -+CONFIG_SMB_FS=y -+CONFIG_CIFS=y -+CONFIG_NLS_CODEPAGE_437=y -+CONFIG_NLS_ASCII=y -+CONFIG_NLS_UTF8=y -+CONFIG_SYSCTL_SYSCALL_CHECK=y -+CONFIG_DEBUG_MMRS=y -+# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_CRC_CCITT=m -diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig -new file mode 100644 -index 000000000000..4a1ad4fd7bb2 ---- /dev/null -+++ b/arch/blackfin/configs/CM-BF527_defconfig -@@ -0,0 +1,129 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_KERNEL_LZMA=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_RD_GZIP is not set -+CONFIG_RD_LZMA=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+CONFIG_PREEMPT=y -+CONFIG_BF527=y -+CONFIG_BF_REV_0_1=y -+CONFIG_IRQ_TIMER0=12 -+CONFIG_BFIN527_BLUETECHNIX_CM=y -+CONFIG_IRQ_USB_INT0=11 -+CONFIG_IRQ_USB_INT1=11 -+CONFIG_IRQ_USB_INT2=11 -+CONFIG_IRQ_USB_DMA=11 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=y -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0xFFC0 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_INTELEXT=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_GPIO_ADDR=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_SCSI=y -+CONFIG_BLK_DEV_SD=y -+# CONFIG_SCSI_LOWLEVEL is not set -+CONFIG_NETDEVICES=y -+CONFIG_NET_ETHERNET=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_DEVKMEM is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_LEGACY_PTYS is not set -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_BLACKFIN_TWI=m -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+CONFIG_USB=m -+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y -+# CONFIG_USB_DEVICE_CLASS is not set -+CONFIG_USB_OTG_BLACKLIST_HUB=y -+CONFIG_USB_MON=m -+CONFIG_USB_MUSB_HDRC=m -+CONFIG_USB_MUSB_PERIPHERAL=y -+CONFIG_USB_GADGET_MUSB_HDRC=y -+CONFIG_MUSB_PIO_ONLY=y -+CONFIG_USB_STORAGE=m -+CONFIG_USB_GADGET=m -+CONFIG_USB_ETH=m -+CONFIG_USB_MASS_STORAGE=m -+CONFIG_USB_G_SERIAL=m -+CONFIG_USB_G_PRINTER=m -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+# CONFIG_DNOTIFY is not set -+CONFIG_MSDOS_FS=y -+CONFIG_VFAT_FS=y -+CONFIG_JFFS2_FS=y -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_SMB_FS=m -+CONFIG_NLS_CODEPAGE_437=y -+CONFIG_NLS_ISO8859_1=y -+CONFIG_DEBUG_FS=y -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set -+CONFIG_EARLY_PRINTK=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRC_CCITT=m -+CONFIG_CRC_ITU_T=y -+CONFIG_CRC7=y -diff --git a/arch/blackfin/configs/PNAV-10_defconfig b/arch/blackfin/configs/PNAV-10_defconfig -new file mode 100644 -index 000000000000..9d787e28bbe8 ---- /dev/null -+++ b/arch/blackfin/configs/PNAV-10_defconfig -@@ -0,0 +1,111 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_LOG_BUF_SHIFT=14 -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF537=y -+CONFIG_IRQ_TIMER0=12 -+CONFIG_PNAV10=y -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+CONFIG_IP_CHECKSUM_L1=y -+CONFIG_SYSCALL_TAB_L1=y -+CONFIG_CPLB_SWITCH_TAB_L1=y -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=y -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_1=0x33B0 -+CONFIG_BANK_2=0x33B0 -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_UCLINUX=y -+CONFIG_MTD_NAND=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+CONFIG_NET_ETHERNET=y -+CONFIG_BFIN_MAC=y -+# CONFIG_BFIN_MAC_USE_L1 is not set -+CONFIG_BFIN_TX_DESC_NUM=100 -+CONFIG_BFIN_RX_DESC_NUM=100 -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=y -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_TOUCHSCREEN=y -+CONFIG_TOUCHSCREEN_AD7877=y -+CONFIG_INPUT_MISC=y -+CONFIG_INPUT_UINPUT=y -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+CONFIG_SERIAL_BFIN_UART1=y -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_HW_RANDOM=y -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_FB=y -+CONFIG_FIRMWARE_EDID=y -+CONFIG_BACKLIGHT_LCD_SUPPORT=y -+CONFIG_LCD_CLASS_DEVICE=y -+CONFIG_BACKLIGHT_CLASS_DEVICE=y -+CONFIG_SOUND=y -+CONFIG_SND=m -+# CONFIG_SND_SUPPORT_OLD_API is not set -+# CONFIG_SND_VERBOSE_PROCFS is not set -+CONFIG_SOUND_PRIME=y -+# CONFIG_HID is not set -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+# CONFIG_DNOTIFY is not set -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_SMB_FS=m -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+# CONFIG_DEBUG_HUNT_FOR_ZERO is not set -+# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set -+# CONFIG_ACCESS_CHECK is not set -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRC_CCITT=m -diff --git a/arch/blackfin/configs/SRV1_defconfig b/arch/blackfin/configs/SRV1_defconfig -new file mode 100644 -index 000000000000..225df32dc9a8 ---- /dev/null -+++ b/arch/blackfin/configs/SRV1_defconfig -@@ -0,0 +1,88 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_SYSVIPC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+CONFIG_KALLSYMS_ALL=y -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_IOSCHED_DEADLINE is not set -+CONFIG_PREEMPT=y -+CONFIG_BF537=y -+CONFIG_IRQ_TIMER0=12 -+CONFIG_BOOT_LOAD=0x400000 -+CONFIG_CLKIN_HZ=22118400 -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_DMA_UNCACHED_2M=y -+CONFIG_C_CDPRIO=y -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_PM=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_IPV6 is not set -+CONFIG_IRDA=m -+CONFIG_IRLAN=m -+CONFIG_IRCOMM=m -+CONFIG_IRDA_CACHE_LAST_LSAP=y -+CONFIG_IRTTY_SIR=m -+# CONFIG_WIRELESS is not set -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_JEDECPROBE=m -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_UCLINUX=y -+CONFIG_MTD_NAND=m -+CONFIG_BLK_DEV_RAM=y -+CONFIG_MISC_DEVICES=y -+CONFIG_EEPROM_AT25=m -+CONFIG_NETDEVICES=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+CONFIG_INPUT_EVDEV=m -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+CONFIG_INPUT_UINPUT=y -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_HWMON=m -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_HID is not set -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+# CONFIG_DNOTIFY is not set -+CONFIG_JFFS2_FS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3=y -+CONFIG_SMB_FS=m -+CONFIG_DEBUG_KERNEL=y -+# CONFIG_DEBUG_BUGVERBOSE is not set -+CONFIG_DEBUG_INFO=y -+# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set -+CONFIG_CPLB_INFO=y -diff --git a/arch/blackfin/configs/TCM-BF518_defconfig b/arch/blackfin/configs/TCM-BF518_defconfig -new file mode 100644 -index 000000000000..425c24e43c34 ---- /dev/null -+++ b/arch/blackfin/configs/TCM-BF518_defconfig -@@ -0,0 +1,131 @@ -+CONFIG_EXPERIMENTAL=y -+CONFIG_KERNEL_LZMA=y -+CONFIG_SYSVIPC=y -+CONFIG_IKCONFIG=y -+CONFIG_IKCONFIG_PROC=y -+CONFIG_LOG_BUF_SHIFT=14 -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_RD_GZIP is not set -+CONFIG_RD_LZMA=y -+CONFIG_EXPERT=y -+# CONFIG_SYSCTL_SYSCALL is not set -+# CONFIG_ELF_CORE is not set -+# CONFIG_FUTEX is not set -+# CONFIG_SIGNALFD is not set -+# CONFIG_TIMERFD is not set -+# CONFIG_EVENTFD is not set -+# CONFIG_AIO is not set -+CONFIG_SLAB=y -+CONFIG_MMAP_ALLOW_UNINITIALIZED=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+# CONFIG_LBDAF is not set -+# CONFIG_BLK_DEV_BSG is not set -+# CONFIG_IOSCHED_DEADLINE is not set -+# CONFIG_IOSCHED_CFQ is not set -+CONFIG_PREEMPT=y -+CONFIG_BF518=y -+CONFIG_BF_REV_0_1=y -+CONFIG_BFIN518F_TCM=y -+CONFIG_IRQ_TIMER0=12 -+# CONFIG_CYCLES_CLOCKSOURCE is not set -+# CONFIG_SCHEDULE_L1 is not set -+# CONFIG_MEMSET_L1 is not set -+# CONFIG_MEMCPY_L1 is not set -+# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set -+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 -+CONFIG_BFIN_GPTIMERS=m -+CONFIG_C_CDPRIO=y -+CONFIG_BANK_3=0x99B2 -+CONFIG_BINFMT_FLAT=y -+CONFIG_BINFMT_ZFLAT=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_INET=y -+CONFIG_IP_PNP=y -+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set -+# CONFIG_INET_XFRM_MODE_TUNNEL is not set -+# CONFIG_INET_XFRM_MODE_BEET is not set -+# CONFIG_INET_LRO is not set -+# CONFIG_INET_DIAG is not set -+# CONFIG_IPV6 is not set -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+# CONFIG_FW_LOADER is not set -+CONFIG_MTD=y -+CONFIG_MTD_CMDLINE_PARTS=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_ADV_OPTIONS=y -+CONFIG_MTD_CFI_GEOMETRY=y -+# CONFIG_MTD_MAP_BANK_WIDTH_1 is not set -+# CONFIG_MTD_MAP_BANK_WIDTH_4 is not set -+# CONFIG_MTD_CFI_I2 is not set -+CONFIG_MTD_CFI_INTELEXT=y -+CONFIG_MTD_RAM=y -+CONFIG_MTD_ROM=m -+CONFIG_MTD_PHYSMAP=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_NETDEVICES=y -+CONFIG_NET_ETHERNET=y -+CONFIG_BFIN_MAC=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+# CONFIG_SERIO is not set -+# CONFIG_DEVKMEM is not set -+CONFIG_BFIN_JTAG_COMM=m -+CONFIG_SERIAL_BFIN=y -+CONFIG_SERIAL_BFIN_CONSOLE=y -+CONFIG_SERIAL_BFIN_UART0=y -+# CONFIG_LEGACY_PTYS is not set -+# CONFIG_HW_RANDOM is not set -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+CONFIG_I2C_BLACKFIN_TWI=y -+CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 -+CONFIG_SPI=y -+CONFIG_SPI_BFIN5XX=y -+CONFIG_GPIOLIB=y -+CONFIG_GPIO_SYSFS=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_BFIN_WDT=y -+# CONFIG_HID_SUPPORT is not set -+# CONFIG_USB_SUPPORT is not set -+CONFIG_MMC=y -+CONFIG_MMC_DEBUG=y -+CONFIG_MMC_SPI=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_BFIN=y -+CONFIG_EXT2_FS=y -+# CONFIG_DNOTIFY is not set -+CONFIG_VFAT_FS=m -+# CONFIG_MISC_FILESYSTEMS is not set -+CONFIG_NFS_FS=y -+CONFIG_NFS_V3=y -+CONFIG_ROOT_NFS=y -+CONFIG_NLS_CODEPAGE_437=m -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_UTF8=m -+CONFIG_DEBUG_KERNEL=y -+CONFIG_DEBUG_SHIRQ=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_INFO=y -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+# CONFIG_FTRACE is not set -+CONFIG_DEBUG_MMRS=y -+CONFIG_DEBUG_HWERR=y -+CONFIG_EXACT_HWERR=y -+CONFIG_DEBUG_DOUBLEFAULT=y -+CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y -+CONFIG_EARLY_PRINTK=y -+CONFIG_CPLB_INFO=y -+CONFIG_CRYPTO=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+CONFIG_CRC_CCITT=m -diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig -index 499f51498ecb..f7cb39b0662c 100644 ---- a/arch/mips/configs/fuloong2e_defconfig -+++ b/arch/mips/configs/fuloong2e_defconfig -@@ -2,7 +2,8 @@ CONFIG_MACH_LOONGSON64=y - CONFIG_64BIT=y - CONFIG_NO_HZ=y - CONFIG_HIGH_RES_TIMERS=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - CONFIG_LOCALVERSION="-fuloong2e" - # CONFIG_LOCALVERSION_AUTO is not set - CONFIG_SYSVIPC=y -diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig -index 55438fc9991e..db03ef4f737d 100644 ---- a/arch/mips/configs/gpr_defconfig -+++ b/arch/mips/configs/gpr_defconfig -@@ -1,7 +1,8 @@ - CONFIG_MIPS_ALCHEMY=y - CONFIG_MIPS_GPR=y - CONFIG_HIGH_RES_TIMERS=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - # CONFIG_LOCALVERSION_AUTO is not set - CONFIG_SYSVIPC=y - CONFIG_POSIX_MQUEUE=y -diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig -index 7ddfb4ef9479..93e439ad3fce 100644 ---- a/arch/mips/configs/ip22_defconfig -+++ b/arch/mips/configs/ip22_defconfig -@@ -4,7 +4,8 @@ CONFIG_CPU_R5000=y - CONFIG_NO_HZ=y - CONFIG_HIGH_RES_TIMERS=y - CONFIG_HZ_1000=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - CONFIG_SYSVIPC=y - CONFIG_IKCONFIG=y - CONFIG_IKCONFIG_PROC=y -diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig -index d0a4c2cfacf8..6f0600e99c25 100644 ---- a/arch/mips/configs/ip28_defconfig -+++ b/arch/mips/configs/ip28_defconfig -@@ -1,6 +1,7 @@ - CONFIG_SGI_IP28=y - CONFIG_ARC_CONSOLE=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - CONFIG_SYSVIPC=y - CONFIG_IKCONFIG=y - CONFIG_IKCONFIG_PROC=y -diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig -index 9ad1c94376c8..1d62ce7ff5dc 100644 ---- a/arch/mips/configs/jazz_defconfig -+++ b/arch/mips/configs/jazz_defconfig -@@ -1,6 +1,7 @@ - CONFIG_MACH_JAZZ=y - CONFIG_OLIVETTI_M700=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - CONFIG_SYSVIPC=y - CONFIG_POSIX_MQUEUE=y - CONFIG_BSD_PROCESS_ACCT=y -diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig -index c3d0d0a6e044..aa3426d5f7d7 100644 ---- a/arch/mips/configs/mtx1_defconfig -+++ b/arch/mips/configs/mtx1_defconfig -@@ -1,6 +1,7 @@ - CONFIG_MIPS_ALCHEMY=y - CONFIG_MIPS_MTX1=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - # CONFIG_LOCALVERSION_AUTO is not set - CONFIG_SYSVIPC=y - CONFIG_POSIX_MQUEUE=y -diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig -index c4477a4d40c1..95caf0af665f 100644 ---- a/arch/mips/configs/nlm_xlr_defconfig -+++ b/arch/mips/configs/nlm_xlr_defconfig -@@ -5,7 +5,7 @@ CONFIG_DEFAULT_MMAP_MIN_ADDR=65536 - CONFIG_SMP=y - CONFIG_NO_HZ=y - CONFIG_HIGH_RES_TIMERS=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_KEXEC=y - CONFIG_CROSS_COMPILE="" - # CONFIG_LOCALVERSION_AUTO is not set -diff --git a/arch/mips/configs/pic32mzda_defconfig b/arch/mips/configs/pic32mzda_defconfig -index 41190c2036e6..3728897ab2b2 100644 ---- a/arch/mips/configs/pic32mzda_defconfig -+++ b/arch/mips/configs/pic32mzda_defconfig -@@ -1,7 +1,7 @@ - CONFIG_MACH_PIC32=y - CONFIG_DTB_PIC32_MZDA_SK=y - CONFIG_HZ_100=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - # CONFIG_SECCOMP is not set - CONFIG_SYSVIPC=y - CONFIG_NO_HZ=y -diff --git a/arch/mips/configs/pistachio_defconfig b/arch/mips/configs/pistachio_defconfig -index b22a3cf149b6..cfffca3d37f4 100644 ---- a/arch/mips/configs/pistachio_defconfig -+++ b/arch/mips/configs/pistachio_defconfig -@@ -5,7 +5,7 @@ CONFIG_MIPS_CPS=y - CONFIG_DEFAULT_MMAP_MIN_ADDR=32768 - CONFIG_ZSMALLOC=y - CONFIG_NR_CPUS=4 --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - # CONFIG_LOCALVERSION_AUTO is not set - CONFIG_DEFAULT_HOSTNAME="localhost" - CONFIG_SYSVIPC=y -diff --git a/arch/mips/configs/pnx8335_stb225_defconfig b/arch/mips/configs/pnx8335_stb225_defconfig -index e73cdb08fc6e..dc62fa8d6065 100644 ---- a/arch/mips/configs/pnx8335_stb225_defconfig -+++ b/arch/mips/configs/pnx8335_stb225_defconfig -@@ -3,7 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y - CONFIG_NO_HZ=y - CONFIG_HIGH_RES_TIMERS=y - CONFIG_HZ_128=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - # CONFIG_SECCOMP is not set - # CONFIG_LOCALVERSION_AUTO is not set - # CONFIG_SWAP is not set -diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig -index 5f71aa598b06..767f1999ead0 100644 ---- a/arch/mips/configs/rm200_defconfig -+++ b/arch/mips/configs/rm200_defconfig -@@ -2,7 +2,8 @@ CONFIG_SNI_RM=y - CONFIG_CPU_LITTLE_ENDIAN=y - CONFIG_ARC_CONSOLE=y - CONFIG_HZ_1000=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y - CONFIG_SYSVIPC=y - CONFIG_POSIX_MQUEUE=y - CONFIG_BSD_PROCESS_ACCT=y -diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig -index ccc109761f44..a6a5b0b7a9c9 100644 ---- a/arch/parisc/configs/712_defconfig -+++ b/arch/parisc/configs/712_defconfig -@@ -13,7 +13,7 @@ CONFIG_MODULES=y - CONFIG_MODULE_UNLOAD=y - CONFIG_MODULE_FORCE_UNLOAD=y - CONFIG_PA7100LC=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_GSC_LASI=y - # CONFIG_PDC_CHASSIS is not set - CONFIG_BINFMT_MISC=m -diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig -index 8d41a73bd71b..b8e0a6662ff9 100644 ---- a/arch/parisc/configs/c3000_defconfig -+++ b/arch/parisc/configs/c3000_defconfig -@@ -13,7 +13,7 @@ CONFIG_MODULES=y - CONFIG_MODULE_UNLOAD=y - CONFIG_MODULE_FORCE_UNLOAD=y - CONFIG_PA8X00=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - # CONFIG_GSC is not set - CONFIG_PCI=y - CONFIG_PCI_LBA=y -diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig -index 52c9050a7c5c..8d86d2e989f4 100644 ---- a/arch/parisc/configs/default_defconfig -+++ b/arch/parisc/configs/default_defconfig -@@ -14,7 +14,7 @@ CONFIG_MODULE_UNLOAD=y - CONFIG_MODULE_FORCE_UNLOAD=y - # CONFIG_BLK_DEV_BSG is not set - CONFIG_PA7100LC=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_IOMMU_CCIO=y - CONFIG_GSC_LASI=y - CONFIG_GSC_WAX=y -diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig -new file mode 100644 -index 000000000000..04fee07ea6c5 ---- /dev/null -+++ b/arch/powerpc/configs/c2k_defconfig -@@ -0,0 +1,389 @@ -+CONFIG_SYSVIPC=y -+CONFIG_POSIX_MQUEUE=y -+CONFIG_AUDIT=y -+CONFIG_BSD_PROCESS_ACCT=y -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_PROFILING=y -+CONFIG_OPROFILE=m -+CONFIG_KPROBES=y -+CONFIG_MODULES=y -+CONFIG_MODULE_UNLOAD=y -+CONFIG_MODVERSIONS=y -+CONFIG_PARTITION_ADVANCED=y -+CONFIG_OSF_PARTITION=y -+CONFIG_MAC_PARTITION=y -+CONFIG_BSD_DISKLABEL=y -+CONFIG_MINIX_SUBPARTITION=y -+CONFIG_SOLARIS_X86_PARTITION=y -+CONFIG_UNIXWARE_DISKLABEL=y -+CONFIG_SGI_PARTITION=y -+CONFIG_SUN_PARTITION=y -+# CONFIG_PPC_CHRP is not set -+# CONFIG_PPC_PMAC is not set -+CONFIG_EMBEDDED6xx=y -+CONFIG_PPC_C2K=y -+CONFIG_CPU_FREQ=y -+CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y -+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y -+CONFIG_CPU_FREQ_GOV_POWERSAVE=m -+CONFIG_CPU_FREQ_GOV_ONDEMAND=m -+CONFIG_GEN_RTC=y -+CONFIG_HIGHMEM=y -+CONFIG_PREEMPT=y -+CONFIG_BINFMT_MISC=y -+CONFIG_PM=y -+CONFIG_PCI_MSI=y -+CONFIG_HOTPLUG_PCI=y -+CONFIG_HOTPLUG_PCI_SHPC=m -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_XFRM_USER=y -+CONFIG_NET_KEY=m -+CONFIG_INET=y -+CONFIG_IP_MULTICAST=y -+CONFIG_IP_ADVANCED_ROUTER=y -+CONFIG_IP_MULTIPLE_TABLES=y -+CONFIG_IP_ROUTE_MULTIPATH=y -+CONFIG_IP_ROUTE_VERBOSE=y -+CONFIG_IP_PNP=y -+CONFIG_IP_PNP_DHCP=y -+CONFIG_NET_IPIP=m -+CONFIG_IP_MROUTE=y -+CONFIG_IP_PIMSM_V1=y -+CONFIG_IP_PIMSM_V2=y -+CONFIG_SYN_COOKIES=y -+CONFIG_INET_AH=m -+CONFIG_INET_ESP=m -+CONFIG_INET_IPCOMP=m -+CONFIG_INET6_AH=m -+CONFIG_INET6_ESP=m -+CONFIG_INET6_IPCOMP=m -+CONFIG_IPV6_TUNNEL=m -+CONFIG_NETFILTER=y -+# CONFIG_NETFILTER_XT_MATCH_SCTP is not set -+CONFIG_IP_NF_IPTABLES=m -+CONFIG_IP_NF_MATCH_ECN=m -+CONFIG_IP_NF_MATCH_TTL=m -+CONFIG_IP_NF_FILTER=m -+CONFIG_IP_NF_TARGET_REJECT=m -+CONFIG_IP_NF_MANGLE=m -+CONFIG_IP_NF_TARGET_ECN=m -+CONFIG_IP_NF_RAW=m -+CONFIG_IP_NF_ARPTABLES=m -+CONFIG_IP_NF_ARPFILTER=m -+CONFIG_IP_NF_ARP_MANGLE=m -+CONFIG_IP6_NF_IPTABLES=m -+CONFIG_IP6_NF_MATCH_EUI64=m -+CONFIG_IP6_NF_MATCH_FRAG=m -+CONFIG_IP6_NF_MATCH_OPTS=m -+CONFIG_IP6_NF_MATCH_HL=m -+CONFIG_IP6_NF_MATCH_IPV6HEADER=m -+CONFIG_IP6_NF_MATCH_RT=m -+CONFIG_IP6_NF_FILTER=m -+CONFIG_IP6_NF_MANGLE=m -+CONFIG_IP6_NF_RAW=m -+CONFIG_BRIDGE_NF_EBTABLES=m -+CONFIG_BRIDGE_EBT_BROUTE=m -+CONFIG_BRIDGE_EBT_T_FILTER=m -+CONFIG_BRIDGE_EBT_T_NAT=m -+CONFIG_BRIDGE_EBT_802_3=m -+CONFIG_BRIDGE_EBT_AMONG=m -+CONFIG_BRIDGE_EBT_ARP=m -+CONFIG_BRIDGE_EBT_IP=m -+CONFIG_BRIDGE_EBT_LIMIT=m -+CONFIG_BRIDGE_EBT_MARK=m -+CONFIG_BRIDGE_EBT_PKTTYPE=m -+CONFIG_BRIDGE_EBT_STP=m -+CONFIG_BRIDGE_EBT_VLAN=m -+CONFIG_BRIDGE_EBT_ARPREPLY=m -+CONFIG_BRIDGE_EBT_DNAT=m -+CONFIG_BRIDGE_EBT_MARK_T=m -+CONFIG_BRIDGE_EBT_REDIRECT=m -+CONFIG_BRIDGE_EBT_SNAT=m -+CONFIG_BRIDGE_EBT_LOG=m -+CONFIG_IP_SCTP=m -+CONFIG_ATM=m -+CONFIG_ATM_CLIP=m -+CONFIG_ATM_LANE=m -+CONFIG_ATM_BR2684=m -+CONFIG_BRIDGE=m -+CONFIG_VLAN_8021Q=m -+CONFIG_NET_SCHED=y -+CONFIG_NET_SCH_CBQ=m -+CONFIG_NET_SCH_HTB=m -+CONFIG_NET_SCH_HFSC=m -+CONFIG_NET_SCH_ATM=m -+CONFIG_NET_SCH_PRIO=m -+CONFIG_NET_SCH_RED=m -+CONFIG_NET_SCH_SFQ=m -+CONFIG_NET_SCH_TEQL=m -+CONFIG_NET_SCH_TBF=m -+CONFIG_NET_SCH_GRED=m -+CONFIG_NET_SCH_DSMARK=m -+CONFIG_NET_SCH_NETEM=m -+CONFIG_NET_CLS_TCINDEX=m -+CONFIG_NET_CLS_ROUTE4=m -+CONFIG_NET_CLS_FW=m -+CONFIG_NET_CLS_U32=m -+CONFIG_CLS_U32_PERF=y -+CONFIG_NET_CLS_RSVP=m -+CONFIG_NET_CLS_RSVP6=m -+CONFIG_NET_CLS_IND=y -+CONFIG_BT=m -+CONFIG_BT_RFCOMM=m -+CONFIG_BT_RFCOMM_TTY=y -+CONFIG_BT_BNEP=m -+CONFIG_BT_BNEP_MC_FILTER=y -+CONFIG_BT_BNEP_PROTO_FILTER=y -+CONFIG_BT_HIDP=m -+CONFIG_BT_HCIUART=m -+CONFIG_BT_HCIUART_H4=y -+CONFIG_BT_HCIUART_BCSP=y -+CONFIG_BT_HCIBCM203X=m -+CONFIG_BT_HCIBFUSB=m -+CONFIG_BT_HCIVHCI=m -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+CONFIG_MTD=y -+CONFIG_MTD_BLOCK=y -+CONFIG_MTD_CFI=y -+CONFIG_MTD_CFI_AMDSTD=y -+CONFIG_MTD_COMPLEX_MAPPINGS=y -+CONFIG_MTD_PHYSMAP_OF=y -+CONFIG_BLK_DEV_LOOP=m -+CONFIG_BLK_DEV_CRYPTOLOOP=m -+CONFIG_BLK_DEV_NBD=m -+CONFIG_BLK_DEV_RAM=y -+CONFIG_BLK_DEV_RAM_SIZE=16384 -+CONFIG_SCSI=m -+CONFIG_BLK_DEV_SD=m -+CONFIG_CHR_DEV_ST=m -+CONFIG_CHR_DEV_OSST=m -+CONFIG_BLK_DEV_SR=m -+CONFIG_BLK_DEV_SR_VENDOR=y -+CONFIG_CHR_DEV_SG=m -+CONFIG_SCSI_CONSTANTS=y -+CONFIG_SCSI_LOGGING=y -+CONFIG_SCSI_ISCSI_ATTRS=m -+CONFIG_BLK_DEV_3W_XXXX_RAID=m -+CONFIG_SCSI_3W_9XXX=m -+CONFIG_SCSI_ACARD=m -+CONFIG_SCSI_AACRAID=m -+CONFIG_SCSI_AIC7XXX=m -+CONFIG_AIC7XXX_CMDS_PER_DEVICE=4 -+CONFIG_AIC7XXX_RESET_DELAY_MS=15000 -+# CONFIG_AIC7XXX_DEBUG_ENABLE is not set -+# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set -+CONFIG_SCSI_AIC79XX=m -+CONFIG_AIC79XX_CMDS_PER_DEVICE=4 -+CONFIG_AIC79XX_RESET_DELAY_MS=15000 -+# CONFIG_AIC79XX_DEBUG_ENABLE is not set -+# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set -+CONFIG_SCSI_ARCMSR=m -+CONFIG_MEGARAID_NEWGEN=y -+CONFIG_MEGARAID_MM=m -+CONFIG_MEGARAID_MAILBOX=m -+CONFIG_MEGARAID_SAS=m -+CONFIG_SCSI_GDTH=m -+CONFIG_SCSI_IPS=m -+CONFIG_SCSI_INITIO=m -+CONFIG_SCSI_SYM53C8XX_2=m -+CONFIG_SCSI_QLOGIC_1280=m -+CONFIG_NETDEVICES=y -+CONFIG_BONDING=m -+CONFIG_DUMMY=m -+CONFIG_NETCONSOLE=m -+CONFIG_TUN=m -+# CONFIG_ATM_DRIVERS is not set -+CONFIG_MV643XX_ETH=y -+CONFIG_VITESSE_PHY=y -+CONFIG_INPUT_EVDEV=y -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+CONFIG_INPUT_MISC=y -+CONFIG_INPUT_UINPUT=m -+# CONFIG_SERIO is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_SERIAL_NONSTANDARD=y -+CONFIG_SERIAL_MPSC=y -+CONFIG_SERIAL_MPSC_CONSOLE=y -+CONFIG_NVRAM=m -+CONFIG_RAW_DRIVER=y -+CONFIG_MAX_RAW_DEVS=8192 -+CONFIG_I2C=m -+CONFIG_I2C_CHARDEV=m -+CONFIG_I2C_MV64XXX=m -+CONFIG_HWMON=m -+CONFIG_SENSORS_ADM1021=m -+CONFIG_SENSORS_ADM1025=m -+CONFIG_SENSORS_ADM1026=m -+CONFIG_SENSORS_ADM1031=m -+CONFIG_SENSORS_DS1621=m -+CONFIG_SENSORS_GL518SM=m -+CONFIG_SENSORS_MAX1619=m -+CONFIG_SENSORS_LM75=m -+CONFIG_SENSORS_LM77=m -+CONFIG_SENSORS_LM78=m -+CONFIG_SENSORS_LM80=m -+CONFIG_SENSORS_LM83=m -+CONFIG_SENSORS_LM85=m -+CONFIG_SENSORS_LM87=m -+CONFIG_SENSORS_LM90=m -+CONFIG_SENSORS_PCF8591=m -+CONFIG_SENSORS_VIA686A=m -+CONFIG_SENSORS_W83781D=m -+CONFIG_SENSORS_W83L785TS=m -+CONFIG_WATCHDOG=y -+CONFIG_SOFT_WATCHDOG=m -+CONFIG_PCIPCWATCHDOG=m -+CONFIG_WDTPCI=m -+CONFIG_USBPCWATCHDOG=m -+# CONFIG_VGA_CONSOLE is not set -+CONFIG_USB=m -+CONFIG_USB_MON=m -+CONFIG_USB_EHCI_HCD=m -+CONFIG_USB_EHCI_ROOT_HUB_TT=y -+CONFIG_USB_OHCI_HCD=m -+CONFIG_USB_OHCI_HCD_PPC_OF_BE=y -+CONFIG_USB_UHCI_HCD=m -+CONFIG_USB_ACM=m -+CONFIG_USB_PRINTER=m -+CONFIG_USB_STORAGE=m -+CONFIG_USB_STORAGE_DATAFAB=m -+CONFIG_USB_STORAGE_FREECOM=m -+CONFIG_USB_STORAGE_ISD200=m -+CONFIG_USB_STORAGE_SDDR09=m -+CONFIG_USB_STORAGE_SDDR55=m -+CONFIG_USB_STORAGE_JUMPSHOT=m -+CONFIG_USB_MDC800=m -+CONFIG_USB_MICROTEK=m -+CONFIG_USB_SERIAL=m -+CONFIG_USB_SERIAL_GENERIC=y -+CONFIG_USB_SERIAL_BELKIN=m -+CONFIG_USB_SERIAL_WHITEHEAT=m -+CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m -+CONFIG_USB_SERIAL_EMPEG=m -+CONFIG_USB_SERIAL_FTDI_SIO=m -+CONFIG_USB_SERIAL_VISOR=m -+CONFIG_USB_SERIAL_IPAQ=m -+CONFIG_USB_SERIAL_IR=m -+CONFIG_USB_SERIAL_EDGEPORT=m -+CONFIG_USB_SERIAL_EDGEPORT_TI=m -+CONFIG_USB_SERIAL_KEYSPAN_PDA=m -+CONFIG_USB_SERIAL_KEYSPAN=m -+CONFIG_USB_SERIAL_KLSI=m -+CONFIG_USB_SERIAL_KOBIL_SCT=m -+CONFIG_USB_SERIAL_MCT_U232=m -+CONFIG_USB_SERIAL_PL2303=m -+CONFIG_USB_SERIAL_SAFE=m -+CONFIG_USB_SERIAL_SAFE_PADDED=y -+CONFIG_USB_SERIAL_CYBERJACK=m -+CONFIG_USB_SERIAL_XIRCOM=m -+CONFIG_USB_SERIAL_OMNINET=m -+CONFIG_USB_EMI62=m -+CONFIG_USB_RIO500=m -+CONFIG_USB_LEGOTOWER=m -+CONFIG_USB_LCD=m -+CONFIG_USB_LED=m -+CONFIG_USB_TEST=m -+CONFIG_USB_ATM=m -+CONFIG_USB_SPEEDTOUCH=m -+CONFIG_INFINIBAND=m -+CONFIG_INFINIBAND_USER_MAD=m -+CONFIG_INFINIBAND_USER_ACCESS=m -+CONFIG_INFINIBAND_MTHCA=m -+CONFIG_INFINIBAND_IPOIB=m -+CONFIG_INFINIBAND_IPOIB_CM=y -+CONFIG_INFINIBAND_SRP=m -+CONFIG_DMADEVICES=y -+CONFIG_EXT4_FS=m -+CONFIG_EXT4_FS_POSIX_ACL=y -+CONFIG_EXT4_FS_SECURITY=y -+CONFIG_QUOTA=y -+CONFIG_QFMT_V2=y -+CONFIG_AUTOFS4_FS=m -+CONFIG_UDF_FS=m -+CONFIG_MSDOS_FS=m -+CONFIG_VFAT_FS=m -+CONFIG_FAT_DEFAULT_IOCHARSET="ascii" -+CONFIG_PROC_KCORE=y -+CONFIG_TMPFS=y -+CONFIG_HFS_FS=m -+CONFIG_HFSPLUS_FS=m -+CONFIG_JFFS2_FS=y -+CONFIG_CRAMFS=m -+CONFIG_VXFS_FS=m -+CONFIG_NFS_FS=y -+CONFIG_NFS_V3_ACL=y -+CONFIG_NFS_V4=y -+CONFIG_ROOT_NFS=y -+CONFIG_CIFS=m -+CONFIG_CIFS_XATTR=y -+CONFIG_CIFS_POSIX=y -+CONFIG_NLS=y -+CONFIG_NLS_DEFAULT="utf8" -+CONFIG_NLS_CODEPAGE_437=y -+CONFIG_NLS_CODEPAGE_737=m -+CONFIG_NLS_CODEPAGE_775=m -+CONFIG_NLS_CODEPAGE_850=m -+CONFIG_NLS_CODEPAGE_852=m -+CONFIG_NLS_CODEPAGE_855=m -+CONFIG_NLS_CODEPAGE_857=m -+CONFIG_NLS_CODEPAGE_860=m -+CONFIG_NLS_CODEPAGE_861=m -+CONFIG_NLS_CODEPAGE_862=m -+CONFIG_NLS_CODEPAGE_863=m -+CONFIG_NLS_CODEPAGE_864=m -+CONFIG_NLS_CODEPAGE_865=m -+CONFIG_NLS_CODEPAGE_866=m -+CONFIG_NLS_CODEPAGE_869=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_CODEPAGE_950=m -+CONFIG_NLS_CODEPAGE_932=m -+CONFIG_NLS_CODEPAGE_949=m -+CONFIG_NLS_CODEPAGE_874=m -+CONFIG_NLS_ISO8859_8=m -+CONFIG_NLS_CODEPAGE_1250=m -+CONFIG_NLS_CODEPAGE_1251=m -+CONFIG_NLS_ASCII=y -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_ISO8859_2=m -+CONFIG_NLS_ISO8859_3=m -+CONFIG_NLS_ISO8859_4=m -+CONFIG_NLS_ISO8859_5=m -+CONFIG_NLS_ISO8859_6=m -+CONFIG_NLS_ISO8859_7=m -+CONFIG_NLS_ISO8859_9=m -+CONFIG_NLS_ISO8859_13=m -+CONFIG_NLS_ISO8859_14=m -+CONFIG_NLS_ISO8859_15=m -+CONFIG_NLS_KOI8_R=m -+CONFIG_NLS_KOI8_U=m -+CONFIG_CRC_CCITT=m -+CONFIG_CRC_T10DIF=m -+CONFIG_DEBUG_INFO=y -+CONFIG_MAGIC_SYSRQ=y -+CONFIG_DEBUG_KERNEL=y -+CONFIG_DEBUG_STACK_USAGE=y -+CONFIG_DEBUG_HIGHMEM=y -+CONFIG_DEBUG_STACKOVERFLOW=y -+CONFIG_DETECT_HUNG_TASK=y -+CONFIG_DEBUG_SPINLOCK=y -+CONFIG_BOOTX_TEXT=y -+CONFIG_PPC_EARLY_DEBUG=y -+CONFIG_SECURITY=y -+CONFIG_SECURITY_NETWORK=y -+CONFIG_SECURITY_SELINUX=y -+CONFIG_SECURITY_SELINUX_BOOTPARAM=y -+CONFIG_SECURITY_SELINUX_DISABLE=y -+CONFIG_CRYPTO_HMAC=y -+CONFIG_CRYPTO_MICHAEL_MIC=m -+CONFIG_CRYPTO_SHA1=y -+CONFIG_CRYPTO_SHA512=m -+CONFIG_CRYPTO_WP512=m -+CONFIG_CRYPTO_BLOWFISH=m -+CONFIG_CRYPTO_CAST6=m -+CONFIG_CRYPTO_KHAZAD=m -+CONFIG_CRYPTO_SERPENT=m -+CONFIG_CRYPTO_TEA=m -+CONFIG_CRYPTO_TWOFISH=m -diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig -index 7ee736f20774..8663c0043a56 100644 ---- a/arch/powerpc/configs/ppc6xx_defconfig -+++ b/arch/powerpc/configs/ppc6xx_defconfig -@@ -74,7 +74,7 @@ CONFIG_QE_GPIO=y - CONFIG_MCU_MPC8349EMITX=y - CONFIG_HIGHMEM=y - CONFIG_HZ_1000=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_BINFMT_MISC=y - CONFIG_HIBERNATION=y - CONFIG_PM_DEBUG=y -diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c -index c9ef3c532169..1298454c0499 100644 ---- a/arch/powerpc/platforms/cell/spufs/sched.c -+++ b/arch/powerpc/platforms/cell/spufs/sched.c -@@ -64,11 +64,6 @@ static struct task_struct *spusched_task; - static struct timer_list spusched_timer; - static struct timer_list spuloadavg_timer; - --/* -- * Priority of a normal, non-rt, non-niced'd process (aka nice level 0). -- */ --#define NORMAL_PRIO 120 -- - /* - * Frequency of the spu scheduler tick. By default we do one SPU scheduler - * tick for every 10 CPU scheduler ticks. -diff --git a/arch/score/configs/spct6600_defconfig b/arch/score/configs/spct6600_defconfig -new file mode 100644 -index 000000000000..46434ca1fa10 ---- /dev/null -+++ b/arch/score/configs/spct6600_defconfig -@@ -0,0 +1,84 @@ -+CONFIG_HZ_100=y -+CONFIG_PREEMPT=y -+CONFIG_EXPERIMENTAL=y -+# CONFIG_LOCALVERSION_AUTO is not set -+CONFIG_SYSVIPC=y -+CONFIG_POSIX_MQUEUE=y -+CONFIG_BSD_PROCESS_ACCT=y -+CONFIG_LOG_BUF_SHIFT=12 -+CONFIG_SYSFS_DEPRECATED_V2=y -+CONFIG_BLK_DEV_INITRD=y -+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set -+CONFIG_EXPERT=y -+# CONFIG_KALLSYMS is not set -+# CONFIG_HOTPLUG is not set -+CONFIG_SLAB=y -+CONFIG_MODULES=y -+CONFIG_MODULE_FORCE_LOAD=y -+CONFIG_MODULE_UNLOAD=y -+CONFIG_MODULE_FORCE_UNLOAD=y -+# CONFIG_BLK_DEV_BSG is not set -+CONFIG_BINFMT_MISC=y -+CONFIG_NET=y -+CONFIG_UNIX=y -+CONFIG_NET_KEY=y -+CONFIG_INET=y -+CONFIG_IP_MULTICAST=y -+CONFIG_ARPD=y -+# CONFIG_INET_LRO is not set -+# CONFIG_IPV6 is not set -+# CONFIG_STANDALONE is not set -+# CONFIG_PREVENT_FIRMWARE_BUILD is not set -+CONFIG_BLK_DEV_LOOP=y -+CONFIG_BLK_DEV_CRYPTOLOOP=y -+CONFIG_BLK_DEV_RAM=y -+CONFIG_BLK_DEV_RAM_COUNT=1 -+# CONFIG_MISC_DEVICES is not set -+CONFIG_NETDEVICES=y -+# CONFIG_NETDEV_1000 is not set -+# CONFIG_NETDEV_10000 is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+CONFIG_SERIAL_NONSTANDARD=y -+CONFIG_STALDRV=y -+# CONFIG_HW_RANDOM is not set -+CONFIG_RAW_DRIVER=y -+CONFIG_MAX_RAW_DEVS=8192 -+# CONFIG_HWMON is not set -+# CONFIG_VGA_CONSOLE is not set -+# CONFIG_HID_SUPPORT is not set -+# CONFIG_USB_SUPPORT is not set -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+CONFIG_EXT2_FS_POSIX_ACL=y -+CONFIG_EXT3_FS=y -+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -+CONFIG_EXT3_FS_POSIX_ACL=y -+CONFIG_AUTOFS_FS=y -+CONFIG_AUTOFS4_FS=y -+CONFIG_PROC_KCORE=y -+# CONFIG_PROC_PAGE_MONITOR is not set -+CONFIG_TMPFS=y -+CONFIG_TMPFS_POSIX_ACL=y -+CONFIG_NFS_FS=y -+CONFIG_NFS_V3=y -+CONFIG_NFS_V3_ACL=y -+CONFIG_NFS_V4=y -+CONFIG_NFSD=y -+CONFIG_NFSD_V3_ACL=y -+CONFIG_NFSD_V4=y -+# CONFIG_RCU_CPU_STALL_DETECTOR is not set -+CONFIG_SECURITY=y -+CONFIG_SECURITY_NETWORK=y -+CONFIG_CRYPTO_NULL=y -+CONFIG_CRYPTO_CRYPTD=y -+CONFIG_CRYPTO_SEQIV=y -+CONFIG_CRYPTO_MD4=y -+CONFIG_CRYPTO_MICHAEL_MIC=y -+# CONFIG_CRYPTO_ANSI_CPRNG is not set -+# CONFIG_CRYPTO_HW is not set -+CONFIG_CRC_CCITT=y -+CONFIG_CRC16=y -+CONFIG_LIBCRC32C=y -diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig -index 5a1097641247..eb5fbf554e7f 100644 ---- a/arch/sh/configs/se7712_defconfig -+++ b/arch/sh/configs/se7712_defconfig -@@ -23,7 +23,7 @@ CONFIG_FLATMEM_MANUAL=y - CONFIG_SH_SOLUTION_ENGINE=y - CONFIG_SH_PCLK_FREQ=66666666 - CONFIG_HEARTBEAT=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_CMDLINE_OVERWRITE=y - CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda1" - CONFIG_NET=y -diff --git a/arch/sh/configs/se7721_defconfig b/arch/sh/configs/se7721_defconfig -index 9c0ef13bee10..cbaa65c8bf9e 100644 ---- a/arch/sh/configs/se7721_defconfig -+++ b/arch/sh/configs/se7721_defconfig -@@ -23,7 +23,7 @@ CONFIG_FLATMEM_MANUAL=y - CONFIG_SH_7721_SOLUTION_ENGINE=y - CONFIG_SH_PCLK_FREQ=33333333 - CONFIG_HEARTBEAT=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_CMDLINE_OVERWRITE=y - CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda2" - CONFIG_NET=y -diff --git a/arch/sh/configs/titan_defconfig b/arch/sh/configs/titan_defconfig -index ceb48e9b70f4..1a69eda6610c 100644 ---- a/arch/sh/configs/titan_defconfig -+++ b/arch/sh/configs/titan_defconfig -@@ -20,7 +20,7 @@ CONFIG_SH_TITAN=y - CONFIG_SH_PCLK_FREQ=30000000 - CONFIG_SH_DMA=y - CONFIG_SH_DMA_API=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_CMDLINE_OVERWRITE=y - CONFIG_CMDLINE="console=ttySC1,38400N81 root=/dev/nfs ip=:::::eth1:autoconf rw" - CONFIG_PCI=y -diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig -index 4d4e1cc6402f..04bea1d28ba7 100644 ---- a/arch/sparc/configs/sparc64_defconfig -+++ b/arch/sparc/configs/sparc64_defconfig -@@ -22,7 +22,7 @@ CONFIG_NO_HZ=y - CONFIG_HIGH_RES_TIMERS=y - CONFIG_NUMA=y - CONFIG_DEFAULT_MMAP_MIN_ADDR=8192 --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_SUN_LDOMS=y - CONFIG_PCI=y - CONFIG_PCI_MSI=y -diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig -new file mode 100644 -index 000000000000..939c63ba7e6e ---- /dev/null -+++ b/arch/tile/configs/tilegx_defconfig -@@ -0,0 +1,411 @@ -+CONFIG_TILEGX=y -+CONFIG_SYSVIPC=y -+CONFIG_POSIX_MQUEUE=y -+CONFIG_FHANDLE=y -+CONFIG_AUDIT=y -+CONFIG_NO_HZ=y -+CONFIG_BSD_PROCESS_ACCT=y -+CONFIG_BSD_PROCESS_ACCT_V3=y -+CONFIG_TASKSTATS=y -+CONFIG_TASK_DELAY_ACCT=y -+CONFIG_TASK_XACCT=y -+CONFIG_TASK_IO_ACCOUNTING=y -+CONFIG_LOG_BUF_SHIFT=19 -+CONFIG_CGROUPS=y -+CONFIG_CGROUP_DEBUG=y -+CONFIG_CGROUP_DEVICE=y -+CONFIG_CPUSETS=y -+CONFIG_CGROUP_CPUACCT=y -+CONFIG_CGROUP_SCHED=y -+CONFIG_RT_GROUP_SCHED=y -+CONFIG_BLK_CGROUP=y -+CONFIG_NAMESPACES=y -+CONFIG_RELAY=y -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_RD_XZ=y -+CONFIG_SYSCTL_SYSCALL=y -+CONFIG_EMBEDDED=y -+# CONFIG_COMPAT_BRK is not set -+CONFIG_PROFILING=y -+CONFIG_KPROBES=y -+CONFIG_MODULES=y -+CONFIG_MODULE_FORCE_LOAD=y -+CONFIG_MODULE_UNLOAD=y -+CONFIG_BLK_DEV_INTEGRITY=y -+CONFIG_PARTITION_ADVANCED=y -+CONFIG_OSF_PARTITION=y -+CONFIG_AMIGA_PARTITION=y -+CONFIG_MAC_PARTITION=y -+CONFIG_BSD_DISKLABEL=y -+CONFIG_MINIX_SUBPARTITION=y -+CONFIG_SOLARIS_X86_PARTITION=y -+CONFIG_UNIXWARE_DISKLABEL=y -+CONFIG_SGI_PARTITION=y -+CONFIG_SUN_PARTITION=y -+CONFIG_KARMA_PARTITION=y -+CONFIG_CFQ_GROUP_IOSCHED=y -+CONFIG_NR_CPUS=100 -+CONFIG_HZ_100=y -+# CONFIG_COMPACTION is not set -+CONFIG_PREEMPT=y -+CONFIG_TILE_PCI_IO=y -+CONFIG_PCI_DEBUG=y -+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set -+CONFIG_BINFMT_MISC=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_XFRM_USER=y -+CONFIG_XFRM_SUB_POLICY=y -+CONFIG_XFRM_STATISTICS=y -+CONFIG_NET_KEY=m -+CONFIG_NET_KEY_MIGRATE=y -+CONFIG_INET=y -+CONFIG_IP_MULTICAST=y -+CONFIG_IP_ADVANCED_ROUTER=y -+CONFIG_IP_MULTIPLE_TABLES=y -+CONFIG_IP_ROUTE_MULTIPATH=y -+CONFIG_IP_ROUTE_VERBOSE=y -+CONFIG_NET_IPIP=m -+CONFIG_IP_MROUTE=y -+CONFIG_IP_PIMSM_V1=y -+CONFIG_IP_PIMSM_V2=y -+CONFIG_SYN_COOKIES=y -+CONFIG_INET_AH=m -+CONFIG_INET_ESP=m -+CONFIG_INET_IPCOMP=m -+CONFIG_INET_XFRM_MODE_TRANSPORT=m -+CONFIG_INET_XFRM_MODE_TUNNEL=m -+CONFIG_INET_XFRM_MODE_BEET=m -+CONFIG_INET_DIAG=m -+CONFIG_TCP_CONG_ADVANCED=y -+CONFIG_TCP_CONG_HSTCP=m -+CONFIG_TCP_CONG_HYBLA=m -+CONFIG_TCP_CONG_SCALABLE=m -+CONFIG_TCP_CONG_LP=m -+CONFIG_TCP_CONG_VENO=m -+CONFIG_TCP_CONG_YEAH=m -+CONFIG_TCP_CONG_ILLINOIS=m -+CONFIG_TCP_MD5SIG=y -+CONFIG_IPV6=y -+CONFIG_IPV6_ROUTER_PREF=y -+CONFIG_IPV6_ROUTE_INFO=y -+CONFIG_IPV6_OPTIMISTIC_DAD=y -+CONFIG_INET6_AH=m -+CONFIG_INET6_ESP=m -+CONFIG_INET6_IPCOMP=m -+CONFIG_IPV6_MIP6=m -+CONFIG_INET6_XFRM_MODE_TRANSPORT=m -+CONFIG_INET6_XFRM_MODE_TUNNEL=m -+CONFIG_INET6_XFRM_MODE_BEET=m -+CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m -+CONFIG_IPV6_SIT=m -+CONFIG_IPV6_TUNNEL=m -+CONFIG_IPV6_MULTIPLE_TABLES=y -+CONFIG_IPV6_MROUTE=y -+CONFIG_IPV6_PIMSM_V2=y -+CONFIG_NETLABEL=y -+CONFIG_RDS=m -+CONFIG_RDS_TCP=m -+CONFIG_BRIDGE=m -+CONFIG_VLAN_8021Q=m -+CONFIG_VLAN_8021Q_GVRP=y -+CONFIG_PHONET=m -+CONFIG_NET_SCHED=y -+CONFIG_NET_SCH_CBQ=m -+CONFIG_NET_SCH_HTB=m -+CONFIG_NET_SCH_HFSC=m -+CONFIG_NET_SCH_PRIO=m -+CONFIG_NET_SCH_MULTIQ=m -+CONFIG_NET_SCH_RED=m -+CONFIG_NET_SCH_SFQ=m -+CONFIG_NET_SCH_TEQL=m -+CONFIG_NET_SCH_TBF=m -+CONFIG_NET_SCH_GRED=m -+CONFIG_NET_SCH_DSMARK=m -+CONFIG_NET_SCH_NETEM=m -+CONFIG_NET_SCH_DRR=m -+CONFIG_NET_SCH_INGRESS=m -+CONFIG_NET_CLS_BASIC=m -+CONFIG_NET_CLS_TCINDEX=m -+CONFIG_NET_CLS_ROUTE4=m -+CONFIG_NET_CLS_FW=m -+CONFIG_NET_CLS_U32=m -+CONFIG_CLS_U32_PERF=y -+CONFIG_CLS_U32_MARK=y -+CONFIG_NET_CLS_RSVP=m -+CONFIG_NET_CLS_RSVP6=m -+CONFIG_NET_CLS_FLOW=m -+CONFIG_NET_CLS_CGROUP=y -+CONFIG_NET_EMATCH=y -+CONFIG_NET_EMATCH_CMP=m -+CONFIG_NET_EMATCH_NBYTE=m -+CONFIG_NET_EMATCH_U32=m -+CONFIG_NET_EMATCH_META=m -+CONFIG_NET_EMATCH_TEXT=m -+CONFIG_NET_CLS_ACT=y -+CONFIG_NET_ACT_POLICE=m -+CONFIG_NET_ACT_GACT=m -+CONFIG_GACT_PROB=y -+CONFIG_NET_ACT_MIRRED=m -+CONFIG_NET_ACT_NAT=m -+CONFIG_NET_ACT_PEDIT=m -+CONFIG_NET_ACT_SIMP=m -+CONFIG_NET_ACT_SKBEDIT=m -+CONFIG_NET_CLS_IND=y -+CONFIG_DCB=y -+CONFIG_DNS_RESOLVER=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+CONFIG_DEVTMPFS=y -+CONFIG_DEVTMPFS_MOUNT=y -+CONFIG_CONNECTOR=y -+CONFIG_BLK_DEV_LOOP=y -+CONFIG_BLK_DEV_CRYPTOLOOP=m -+CONFIG_BLK_DEV_SX8=m -+CONFIG_BLK_DEV_RAM=y -+CONFIG_BLK_DEV_RAM_SIZE=16384 -+CONFIG_ATA_OVER_ETH=m -+CONFIG_RAID_ATTRS=m -+CONFIG_BLK_DEV_SD=y -+CONFIG_SCSI_CONSTANTS=y -+CONFIG_SCSI_LOGGING=y -+CONFIG_SCSI_SAS_ATA=y -+CONFIG_ISCSI_TCP=m -+CONFIG_SCSI_MVSAS=y -+# CONFIG_SCSI_MVSAS_DEBUG is not set -+CONFIG_SCSI_MVSAS_TASKLET=y -+CONFIG_ATA=y -+CONFIG_SATA_AHCI=y -+CONFIG_SATA_SIL24=y -+# CONFIG_ATA_SFF is not set -+CONFIG_MD=y -+CONFIG_BLK_DEV_MD=y -+CONFIG_MD_LINEAR=m -+CONFIG_MD_RAID0=m -+CONFIG_MD_RAID1=m -+CONFIG_MD_RAID10=m -+CONFIG_MD_RAID456=m -+CONFIG_MD_FAULTY=m -+CONFIG_BLK_DEV_DM=m -+CONFIG_DM_DEBUG=y -+CONFIG_DM_CRYPT=m -+CONFIG_DM_SNAPSHOT=m -+CONFIG_DM_MIRROR=m -+CONFIG_DM_LOG_USERSPACE=m -+CONFIG_DM_ZERO=m -+CONFIG_DM_MULTIPATH=m -+CONFIG_DM_MULTIPATH_QL=m -+CONFIG_DM_MULTIPATH_ST=m -+CONFIG_DM_DELAY=m -+CONFIG_DM_UEVENT=y -+CONFIG_TARGET_CORE=m -+CONFIG_TCM_IBLOCK=m -+CONFIG_TCM_FILEIO=m -+CONFIG_TCM_PSCSI=m -+CONFIG_LOOPBACK_TARGET=m -+CONFIG_ISCSI_TARGET=m -+CONFIG_FUSION=y -+CONFIG_FUSION_SAS=y -+CONFIG_NETDEVICES=y -+CONFIG_BONDING=m -+CONFIG_DUMMY=m -+CONFIG_IFB=m -+CONFIG_MACVLAN=m -+CONFIG_MACVTAP=m -+CONFIG_NETCONSOLE=m -+CONFIG_NETCONSOLE_DYNAMIC=y -+CONFIG_TUN=y -+CONFIG_VETH=m -+CONFIG_NET_DSA_MV88E6060=y -+CONFIG_NET_DSA_MV88E6XXX=y -+CONFIG_SKY2=y -+CONFIG_PTP_1588_CLOCK_TILEGX=y -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_SERIAL_TILEGX=y -+CONFIG_HW_RANDOM=y -+CONFIG_HW_RANDOM_TIMERIOMEM=m -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_WATCHDOG_NOWAYOUT=y -+# CONFIG_VGA_ARB is not set -+CONFIG_DRM=m -+CONFIG_DRM_TDFX=m -+CONFIG_DRM_R128=m -+CONFIG_DRM_MGA=m -+CONFIG_DRM_VIA=m -+CONFIG_DRM_SAVAGE=m -+CONFIG_USB=y -+CONFIG_USB_EHCI_HCD=y -+CONFIG_USB_OHCI_HCD=y -+CONFIG_USB_STORAGE=y -+CONFIG_EDAC=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_TILE=y -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+CONFIG_EXT2_FS_POSIX_ACL=y -+CONFIG_EXT2_FS_SECURITY=y -+CONFIG_EXT2_FS_XIP=y -+CONFIG_EXT3_FS=y -+CONFIG_EXT3_FS_POSIX_ACL=y -+CONFIG_EXT3_FS_SECURITY=y -+CONFIG_EXT4_FS=y -+CONFIG_EXT4_FS_POSIX_ACL=y -+CONFIG_EXT4_FS_SECURITY=y -+CONFIG_XFS_FS=y -+CONFIG_XFS_QUOTA=y -+CONFIG_XFS_POSIX_ACL=y -+CONFIG_GFS2_FS=m -+CONFIG_GFS2_FS_LOCKING_DLM=y -+CONFIG_BTRFS_FS=m -+CONFIG_BTRFS_FS_POSIX_ACL=y -+CONFIG_QUOTA=y -+CONFIG_QUOTA_NETLINK_INTERFACE=y -+# CONFIG_PRINT_QUOTA_WARNING is not set -+CONFIG_QFMT_V2=y -+CONFIG_AUTOFS4_FS=m -+CONFIG_FUSE_FS=y -+CONFIG_CUSE=m -+CONFIG_FSCACHE=m -+CONFIG_FSCACHE_STATS=y -+CONFIG_CACHEFILES=m -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_ZISOFS=y -+CONFIG_UDF_FS=m -+CONFIG_MSDOS_FS=m -+CONFIG_VFAT_FS=m -+CONFIG_FAT_DEFAULT_IOCHARSET="ascii" -+CONFIG_PROC_KCORE=y -+CONFIG_TMPFS=y -+CONFIG_TMPFS_POSIX_ACL=y -+CONFIG_HUGETLBFS=y -+CONFIG_ECRYPT_FS=m -+CONFIG_CRAMFS=m -+CONFIG_SQUASHFS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3_ACL=y -+CONFIG_NFS_V4=m -+CONFIG_NFS_V4_1=y -+CONFIG_NFS_FSCACHE=y -+CONFIG_NFSD=m -+CONFIG_NFSD_V3_ACL=y -+CONFIG_NFSD_V4=y -+CONFIG_CIFS=m -+CONFIG_CIFS_STATS=y -+CONFIG_CIFS_WEAK_PW_HASH=y -+CONFIG_CIFS_UPCALL=y -+CONFIG_CIFS_XATTR=y -+CONFIG_CIFS_POSIX=y -+CONFIG_CIFS_DFS_UPCALL=y -+CONFIG_CIFS_FSCACHE=y -+CONFIG_NLS_DEFAULT="utf8" -+CONFIG_NLS_CODEPAGE_437=y -+CONFIG_NLS_CODEPAGE_737=m -+CONFIG_NLS_CODEPAGE_775=m -+CONFIG_NLS_CODEPAGE_850=m -+CONFIG_NLS_CODEPAGE_852=m -+CONFIG_NLS_CODEPAGE_855=m -+CONFIG_NLS_CODEPAGE_857=m -+CONFIG_NLS_CODEPAGE_860=m -+CONFIG_NLS_CODEPAGE_861=m -+CONFIG_NLS_CODEPAGE_862=m -+CONFIG_NLS_CODEPAGE_863=m -+CONFIG_NLS_CODEPAGE_864=m -+CONFIG_NLS_CODEPAGE_865=m -+CONFIG_NLS_CODEPAGE_866=m -+CONFIG_NLS_CODEPAGE_869=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_CODEPAGE_950=m -+CONFIG_NLS_CODEPAGE_932=m -+CONFIG_NLS_CODEPAGE_949=m -+CONFIG_NLS_CODEPAGE_874=m -+CONFIG_NLS_ISO8859_8=m -+CONFIG_NLS_CODEPAGE_1250=m -+CONFIG_NLS_CODEPAGE_1251=m -+CONFIG_NLS_ASCII=y -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_ISO8859_2=m -+CONFIG_NLS_ISO8859_3=m -+CONFIG_NLS_ISO8859_4=m -+CONFIG_NLS_ISO8859_5=m -+CONFIG_NLS_ISO8859_6=m -+CONFIG_NLS_ISO8859_7=m -+CONFIG_NLS_ISO8859_9=m -+CONFIG_NLS_ISO8859_13=m -+CONFIG_NLS_ISO8859_14=m -+CONFIG_NLS_ISO8859_15=m -+CONFIG_NLS_KOI8_R=m -+CONFIG_NLS_KOI8_U=m -+CONFIG_NLS_UTF8=m -+CONFIG_DLM=m -+CONFIG_DLM_DEBUG=y -+CONFIG_DYNAMIC_DEBUG=y -+CONFIG_DEBUG_INFO=y -+CONFIG_DEBUG_INFO_REDUCED=y -+# CONFIG_ENABLE_WARN_DEPRECATED is not set -+CONFIG_STRIP_ASM_SYMS=y -+CONFIG_DEBUG_FS=y -+CONFIG_HEADERS_CHECK=y -+# CONFIG_FRAME_POINTER is not set -+CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y -+CONFIG_DEBUG_VM=y -+CONFIG_DEBUG_MEMORY_INIT=y -+CONFIG_DEBUG_STACKOVERFLOW=y -+CONFIG_LOCKUP_DETECTOR=y -+CONFIG_SCHEDSTATS=y -+CONFIG_TIMER_STATS=y -+CONFIG_DEBUG_LIST=y -+CONFIG_DEBUG_CREDENTIALS=y -+CONFIG_RCU_CPU_STALL_TIMEOUT=60 -+CONFIG_ASYNC_RAID6_TEST=m -+CONFIG_KGDB=y -+CONFIG_SECURITY=y -+CONFIG_SECURITYFS=y -+CONFIG_SECURITY_NETWORK=y -+CONFIG_SECURITY_NETWORK_XFRM=y -+CONFIG_SECURITY_SELINUX=y -+CONFIG_SECURITY_SELINUX_BOOTPARAM=y -+CONFIG_SECURITY_SELINUX_DISABLE=y -+CONFIG_CRYPTO_PCRYPT=m -+CONFIG_CRYPTO_CRYPTD=m -+CONFIG_CRYPTO_TEST=m -+CONFIG_CRYPTO_CCM=m -+CONFIG_CRYPTO_GCM=m -+CONFIG_CRYPTO_CTS=m -+CONFIG_CRYPTO_LRW=m -+CONFIG_CRYPTO_PCBC=m -+CONFIG_CRYPTO_XTS=m -+CONFIG_CRYPTO_HMAC=y -+CONFIG_CRYPTO_XCBC=m -+CONFIG_CRYPTO_VMAC=m -+CONFIG_CRYPTO_MICHAEL_MIC=m -+CONFIG_CRYPTO_RMD128=m -+CONFIG_CRYPTO_RMD160=m -+CONFIG_CRYPTO_RMD256=m -+CONFIG_CRYPTO_RMD320=m -+CONFIG_CRYPTO_SHA1=y -+CONFIG_CRYPTO_SHA512=m -+CONFIG_CRYPTO_TGR192=m -+CONFIG_CRYPTO_WP512=m -+CONFIG_CRYPTO_ANUBIS=m -+CONFIG_CRYPTO_BLOWFISH=m -+CONFIG_CRYPTO_CAMELLIA=m -+CONFIG_CRYPTO_CAST5=m -+CONFIG_CRYPTO_CAST6=m -+CONFIG_CRYPTO_FCRYPT=m -+CONFIG_CRYPTO_KHAZAD=m -+CONFIG_CRYPTO_SEED=m -+CONFIG_CRYPTO_SERPENT=m -+CONFIG_CRYPTO_TEA=m -+CONFIG_CRYPTO_TWOFISH=m -+CONFIG_CRYPTO_LZO=m -diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig -new file mode 100644 -index 000000000000..e8c4003cbd81 ---- /dev/null -+++ b/arch/tile/configs/tilepro_defconfig -@@ -0,0 +1,524 @@ -+CONFIG_SYSVIPC=y -+CONFIG_POSIX_MQUEUE=y -+CONFIG_AUDIT=y -+CONFIG_NO_HZ=y -+CONFIG_HIGH_RES_TIMERS=y -+CONFIG_BSD_PROCESS_ACCT=y -+CONFIG_BSD_PROCESS_ACCT_V3=y -+CONFIG_TASKSTATS=y -+CONFIG_TASK_DELAY_ACCT=y -+CONFIG_TASK_XACCT=y -+CONFIG_TASK_IO_ACCOUNTING=y -+CONFIG_LOG_BUF_SHIFT=19 -+CONFIG_CGROUPS=y -+CONFIG_CGROUP_DEBUG=y -+CONFIG_CGROUP_DEVICE=y -+CONFIG_CPUSETS=y -+CONFIG_CGROUP_CPUACCT=y -+CONFIG_CGROUP_SCHED=y -+CONFIG_RT_GROUP_SCHED=y -+CONFIG_BLK_CGROUP=y -+CONFIG_NAMESPACES=y -+CONFIG_RELAY=y -+CONFIG_BLK_DEV_INITRD=y -+CONFIG_RD_XZ=y -+CONFIG_SYSCTL_SYSCALL=y -+CONFIG_EMBEDDED=y -+# CONFIG_COMPAT_BRK is not set -+CONFIG_PROFILING=y -+CONFIG_MODULES=y -+CONFIG_MODULE_FORCE_LOAD=y -+CONFIG_MODULE_UNLOAD=y -+CONFIG_BLK_DEV_INTEGRITY=y -+CONFIG_PARTITION_ADVANCED=y -+CONFIG_OSF_PARTITION=y -+CONFIG_AMIGA_PARTITION=y -+CONFIG_MAC_PARTITION=y -+CONFIG_BSD_DISKLABEL=y -+CONFIG_MINIX_SUBPARTITION=y -+CONFIG_SOLARIS_X86_PARTITION=y -+CONFIG_UNIXWARE_DISKLABEL=y -+CONFIG_SGI_PARTITION=y -+CONFIG_SUN_PARTITION=y -+CONFIG_KARMA_PARTITION=y -+CONFIG_CFQ_GROUP_IOSCHED=y -+CONFIG_HZ_100=y -+# CONFIG_COMPACTION is not set -+CONFIG_PREEMPT=y -+CONFIG_PCI_DEBUG=y -+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set -+CONFIG_BINFMT_MISC=y -+CONFIG_NET=y -+CONFIG_PACKET=y -+CONFIG_UNIX=y -+CONFIG_XFRM_USER=y -+CONFIG_XFRM_SUB_POLICY=y -+CONFIG_XFRM_STATISTICS=y -+CONFIG_NET_KEY=m -+CONFIG_NET_KEY_MIGRATE=y -+CONFIG_INET=y -+CONFIG_IP_MULTICAST=y -+CONFIG_IP_ADVANCED_ROUTER=y -+CONFIG_IP_MULTIPLE_TABLES=y -+CONFIG_IP_ROUTE_MULTIPATH=y -+CONFIG_IP_ROUTE_VERBOSE=y -+CONFIG_NET_IPIP=m -+CONFIG_IP_MROUTE=y -+CONFIG_IP_PIMSM_V1=y -+CONFIG_IP_PIMSM_V2=y -+CONFIG_SYN_COOKIES=y -+CONFIG_INET_AH=m -+CONFIG_INET_ESP=m -+CONFIG_INET_IPCOMP=m -+CONFIG_INET_XFRM_MODE_TRANSPORT=m -+CONFIG_INET_XFRM_MODE_TUNNEL=m -+CONFIG_INET_XFRM_MODE_BEET=m -+CONFIG_INET_DIAG=m -+CONFIG_TCP_CONG_ADVANCED=y -+CONFIG_TCP_CONG_HSTCP=m -+CONFIG_TCP_CONG_HYBLA=m -+CONFIG_TCP_CONG_SCALABLE=m -+CONFIG_TCP_CONG_LP=m -+CONFIG_TCP_CONG_VENO=m -+CONFIG_TCP_CONG_YEAH=m -+CONFIG_TCP_CONG_ILLINOIS=m -+CONFIG_TCP_MD5SIG=y -+CONFIG_IPV6=y -+CONFIG_IPV6_ROUTER_PREF=y -+CONFIG_IPV6_ROUTE_INFO=y -+CONFIG_IPV6_OPTIMISTIC_DAD=y -+CONFIG_INET6_AH=m -+CONFIG_INET6_ESP=m -+CONFIG_INET6_IPCOMP=m -+CONFIG_IPV6_MIP6=m -+CONFIG_INET6_XFRM_MODE_TRANSPORT=m -+CONFIG_INET6_XFRM_MODE_TUNNEL=m -+CONFIG_INET6_XFRM_MODE_BEET=m -+CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m -+CONFIG_IPV6_SIT=m -+CONFIG_IPV6_TUNNEL=m -+CONFIG_IPV6_MULTIPLE_TABLES=y -+CONFIG_IPV6_MROUTE=y -+CONFIG_IPV6_PIMSM_V2=y -+CONFIG_NETLABEL=y -+CONFIG_NETFILTER=y -+CONFIG_NF_CONNTRACK=m -+CONFIG_NF_CONNTRACK_SECMARK=y -+CONFIG_NF_CONNTRACK_ZONES=y -+CONFIG_NF_CONNTRACK_EVENTS=y -+CONFIG_NF_CT_PROTO_DCCP=m -+CONFIG_NF_CT_PROTO_UDPLITE=m -+CONFIG_NF_CONNTRACK_AMANDA=m -+CONFIG_NF_CONNTRACK_FTP=m -+CONFIG_NF_CONNTRACK_H323=m -+CONFIG_NF_CONNTRACK_IRC=m -+CONFIG_NF_CONNTRACK_NETBIOS_NS=m -+CONFIG_NF_CONNTRACK_PPTP=m -+CONFIG_NF_CONNTRACK_SANE=m -+CONFIG_NF_CONNTRACK_SIP=m -+CONFIG_NF_CONNTRACK_TFTP=m -+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m -+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m -+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m -+CONFIG_NETFILTER_XT_TARGET_DSCP=m -+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m -+CONFIG_NETFILTER_XT_TARGET_MARK=m -+CONFIG_NETFILTER_XT_TARGET_NFLOG=m -+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m -+CONFIG_NETFILTER_XT_TARGET_NOTRACK=m -+CONFIG_NETFILTER_XT_TARGET_TEE=m -+CONFIG_NETFILTER_XT_TARGET_TPROXY=m -+CONFIG_NETFILTER_XT_TARGET_TRACE=m -+CONFIG_NETFILTER_XT_TARGET_SECMARK=m -+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m -+CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m -+CONFIG_NETFILTER_XT_MATCH_CLUSTER=m -+CONFIG_NETFILTER_XT_MATCH_COMMENT=m -+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m -+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m -+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m -+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m -+CONFIG_NETFILTER_XT_MATCH_DCCP=m -+CONFIG_NETFILTER_XT_MATCH_DSCP=m -+CONFIG_NETFILTER_XT_MATCH_ESP=m -+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m -+CONFIG_NETFILTER_XT_MATCH_HELPER=m -+CONFIG_NETFILTER_XT_MATCH_IPRANGE=m -+CONFIG_NETFILTER_XT_MATCH_IPVS=m -+CONFIG_NETFILTER_XT_MATCH_LENGTH=m -+CONFIG_NETFILTER_XT_MATCH_LIMIT=m -+CONFIG_NETFILTER_XT_MATCH_MAC=m -+CONFIG_NETFILTER_XT_MATCH_MARK=m -+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m -+CONFIG_NETFILTER_XT_MATCH_OSF=m -+CONFIG_NETFILTER_XT_MATCH_OWNER=m -+CONFIG_NETFILTER_XT_MATCH_POLICY=m -+CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m -+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m -+CONFIG_NETFILTER_XT_MATCH_QUOTA=m -+CONFIG_NETFILTER_XT_MATCH_RATEEST=m -+CONFIG_NETFILTER_XT_MATCH_REALM=m -+CONFIG_NETFILTER_XT_MATCH_RECENT=m -+CONFIG_NETFILTER_XT_MATCH_SOCKET=m -+CONFIG_NETFILTER_XT_MATCH_STATE=m -+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m -+CONFIG_NETFILTER_XT_MATCH_STRING=m -+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m -+CONFIG_NETFILTER_XT_MATCH_TIME=m -+CONFIG_NETFILTER_XT_MATCH_U32=m -+CONFIG_IP_VS=m -+CONFIG_IP_VS_IPV6=y -+CONFIG_IP_VS_PROTO_TCP=y -+CONFIG_IP_VS_PROTO_UDP=y -+CONFIG_IP_VS_PROTO_ESP=y -+CONFIG_IP_VS_PROTO_AH=y -+CONFIG_IP_VS_PROTO_SCTP=y -+CONFIG_IP_VS_RR=m -+CONFIG_IP_VS_WRR=m -+CONFIG_IP_VS_LC=m -+CONFIG_IP_VS_WLC=m -+CONFIG_IP_VS_LBLC=m -+CONFIG_IP_VS_LBLCR=m -+CONFIG_IP_VS_SED=m -+CONFIG_IP_VS_NQ=m -+CONFIG_NF_CONNTRACK_IPV4=m -+# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set -+CONFIG_IP_NF_IPTABLES=y -+CONFIG_IP_NF_MATCH_AH=m -+CONFIG_IP_NF_MATCH_ECN=m -+CONFIG_IP_NF_MATCH_TTL=m -+CONFIG_IP_NF_FILTER=y -+CONFIG_IP_NF_TARGET_REJECT=y -+CONFIG_IP_NF_MANGLE=m -+CONFIG_IP_NF_TARGET_ECN=m -+CONFIG_IP_NF_TARGET_TTL=m -+CONFIG_IP_NF_RAW=m -+CONFIG_IP_NF_SECURITY=m -+CONFIG_IP_NF_ARPTABLES=m -+CONFIG_IP_NF_ARPFILTER=m -+CONFIG_IP_NF_ARP_MANGLE=m -+CONFIG_NF_CONNTRACK_IPV6=m -+CONFIG_IP6_NF_MATCH_AH=m -+CONFIG_IP6_NF_MATCH_EUI64=m -+CONFIG_IP6_NF_MATCH_FRAG=m -+CONFIG_IP6_NF_MATCH_OPTS=m -+CONFIG_IP6_NF_MATCH_HL=m -+CONFIG_IP6_NF_MATCH_IPV6HEADER=m -+CONFIG_IP6_NF_MATCH_MH=m -+CONFIG_IP6_NF_MATCH_RT=m -+CONFIG_IP6_NF_TARGET_HL=m -+CONFIG_IP6_NF_FILTER=m -+CONFIG_IP6_NF_TARGET_REJECT=m -+CONFIG_IP6_NF_MANGLE=m -+CONFIG_IP6_NF_RAW=m -+CONFIG_IP6_NF_SECURITY=m -+CONFIG_BRIDGE_NF_EBTABLES=m -+CONFIG_BRIDGE_EBT_BROUTE=m -+CONFIG_BRIDGE_EBT_T_FILTER=m -+CONFIG_BRIDGE_EBT_T_NAT=m -+CONFIG_BRIDGE_EBT_802_3=m -+CONFIG_BRIDGE_EBT_AMONG=m -+CONFIG_BRIDGE_EBT_ARP=m -+CONFIG_BRIDGE_EBT_IP=m -+CONFIG_BRIDGE_EBT_IP6=m -+CONFIG_BRIDGE_EBT_LIMIT=m -+CONFIG_BRIDGE_EBT_MARK=m -+CONFIG_BRIDGE_EBT_PKTTYPE=m -+CONFIG_BRIDGE_EBT_STP=m -+CONFIG_BRIDGE_EBT_VLAN=m -+CONFIG_BRIDGE_EBT_ARPREPLY=m -+CONFIG_BRIDGE_EBT_DNAT=m -+CONFIG_BRIDGE_EBT_MARK_T=m -+CONFIG_BRIDGE_EBT_REDIRECT=m -+CONFIG_BRIDGE_EBT_SNAT=m -+CONFIG_BRIDGE_EBT_LOG=m -+CONFIG_BRIDGE_EBT_ULOG=m -+CONFIG_BRIDGE_EBT_NFLOG=m -+CONFIG_RDS=m -+CONFIG_RDS_TCP=m -+CONFIG_BRIDGE=m -+CONFIG_VLAN_8021Q=m -+CONFIG_VLAN_8021Q_GVRP=y -+CONFIG_PHONET=m -+CONFIG_NET_SCHED=y -+CONFIG_NET_SCH_CBQ=m -+CONFIG_NET_SCH_HTB=m -+CONFIG_NET_SCH_HFSC=m -+CONFIG_NET_SCH_PRIO=m -+CONFIG_NET_SCH_MULTIQ=m -+CONFIG_NET_SCH_RED=m -+CONFIG_NET_SCH_SFQ=m -+CONFIG_NET_SCH_TEQL=m -+CONFIG_NET_SCH_TBF=m -+CONFIG_NET_SCH_GRED=m -+CONFIG_NET_SCH_DSMARK=m -+CONFIG_NET_SCH_NETEM=m -+CONFIG_NET_SCH_DRR=m -+CONFIG_NET_SCH_INGRESS=m -+CONFIG_NET_CLS_BASIC=m -+CONFIG_NET_CLS_TCINDEX=m -+CONFIG_NET_CLS_ROUTE4=m -+CONFIG_NET_CLS_FW=m -+CONFIG_NET_CLS_U32=m -+CONFIG_CLS_U32_PERF=y -+CONFIG_CLS_U32_MARK=y -+CONFIG_NET_CLS_RSVP=m -+CONFIG_NET_CLS_RSVP6=m -+CONFIG_NET_CLS_FLOW=m -+CONFIG_NET_CLS_CGROUP=y -+CONFIG_NET_EMATCH=y -+CONFIG_NET_EMATCH_CMP=m -+CONFIG_NET_EMATCH_NBYTE=m -+CONFIG_NET_EMATCH_U32=m -+CONFIG_NET_EMATCH_META=m -+CONFIG_NET_EMATCH_TEXT=m -+CONFIG_NET_CLS_ACT=y -+CONFIG_NET_ACT_POLICE=m -+CONFIG_NET_ACT_GACT=m -+CONFIG_GACT_PROB=y -+CONFIG_NET_ACT_MIRRED=m -+CONFIG_NET_ACT_IPT=m -+CONFIG_NET_ACT_NAT=m -+CONFIG_NET_ACT_PEDIT=m -+CONFIG_NET_ACT_SIMP=m -+CONFIG_NET_ACT_SKBEDIT=m -+CONFIG_NET_CLS_IND=y -+CONFIG_DCB=y -+CONFIG_DNS_RESOLVER=y -+# CONFIG_WIRELESS is not set -+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -+CONFIG_DEVTMPFS=y -+CONFIG_DEVTMPFS_MOUNT=y -+CONFIG_CONNECTOR=y -+CONFIG_BLK_DEV_LOOP=y -+CONFIG_BLK_DEV_CRYPTOLOOP=m -+CONFIG_BLK_DEV_SX8=m -+CONFIG_BLK_DEV_RAM=y -+CONFIG_BLK_DEV_RAM_SIZE=16384 -+CONFIG_ATA_OVER_ETH=m -+CONFIG_RAID_ATTRS=m -+CONFIG_BLK_DEV_SD=y -+CONFIG_SCSI_CONSTANTS=y -+CONFIG_SCSI_LOGGING=y -+CONFIG_ATA=y -+CONFIG_SATA_SIL24=y -+# CONFIG_ATA_SFF is not set -+CONFIG_MD=y -+CONFIG_BLK_DEV_MD=y -+CONFIG_MD_LINEAR=m -+CONFIG_MD_RAID0=m -+CONFIG_MD_RAID1=m -+CONFIG_MD_RAID10=m -+CONFIG_MD_RAID456=m -+CONFIG_MD_FAULTY=m -+CONFIG_BLK_DEV_DM=m -+CONFIG_DM_DEBUG=y -+CONFIG_DM_CRYPT=m -+CONFIG_DM_SNAPSHOT=m -+CONFIG_DM_MIRROR=m -+CONFIG_DM_LOG_USERSPACE=m -+CONFIG_DM_ZERO=m -+CONFIG_DM_MULTIPATH=m -+CONFIG_DM_MULTIPATH_QL=m -+CONFIG_DM_MULTIPATH_ST=m -+CONFIG_DM_DELAY=m -+CONFIG_DM_UEVENT=y -+CONFIG_FUSION=y -+CONFIG_FUSION_SAS=y -+CONFIG_NETDEVICES=y -+CONFIG_BONDING=m -+CONFIG_DUMMY=m -+CONFIG_IFB=m -+CONFIG_MACVLAN=m -+CONFIG_MACVTAP=m -+CONFIG_NETCONSOLE=m -+CONFIG_NETCONSOLE_DYNAMIC=y -+CONFIG_TUN=y -+CONFIG_VETH=m -+CONFIG_NET_DSA_MV88E6060=y -+CONFIG_NET_DSA_MV88E6XXX=y -+# CONFIG_NET_VENDOR_3COM is not set -+CONFIG_E1000E=y -+# CONFIG_WLAN is not set -+# CONFIG_INPUT_MOUSEDEV is not set -+# CONFIG_INPUT_KEYBOARD is not set -+# CONFIG_INPUT_MOUSE is not set -+# CONFIG_SERIO is not set -+# CONFIG_VT is not set -+# CONFIG_LEGACY_PTYS is not set -+CONFIG_HW_RANDOM=y -+CONFIG_HW_RANDOM_TIMERIOMEM=m -+CONFIG_I2C=y -+CONFIG_I2C_CHARDEV=y -+# CONFIG_HWMON is not set -+CONFIG_WATCHDOG=y -+CONFIG_WATCHDOG_NOWAYOUT=y -+# CONFIG_VGA_ARB is not set -+# CONFIG_USB_SUPPORT is not set -+CONFIG_EDAC=y -+CONFIG_RTC_CLASS=y -+CONFIG_RTC_DRV_TILE=y -+CONFIG_EXT2_FS=y -+CONFIG_EXT2_FS_XATTR=y -+CONFIG_EXT2_FS_POSIX_ACL=y -+CONFIG_EXT2_FS_SECURITY=y -+CONFIG_EXT2_FS_XIP=y -+CONFIG_EXT3_FS=y -+CONFIG_EXT3_FS_POSIX_ACL=y -+CONFIG_EXT3_FS_SECURITY=y -+CONFIG_EXT4_FS=y -+CONFIG_EXT4_FS_POSIX_ACL=y -+CONFIG_EXT4_FS_SECURITY=y -+CONFIG_XFS_FS=y -+CONFIG_XFS_QUOTA=y -+CONFIG_XFS_POSIX_ACL=y -+CONFIG_GFS2_FS=m -+CONFIG_GFS2_FS_LOCKING_DLM=y -+CONFIG_BTRFS_FS=m -+CONFIG_BTRFS_FS_POSIX_ACL=y -+CONFIG_QUOTA=y -+CONFIG_QUOTA_NETLINK_INTERFACE=y -+# CONFIG_PRINT_QUOTA_WARNING is not set -+CONFIG_QFMT_V2=y -+CONFIG_AUTOFS4_FS=m -+CONFIG_FUSE_FS=y -+CONFIG_CUSE=m -+CONFIG_FSCACHE=m -+CONFIG_FSCACHE_STATS=y -+CONFIG_CACHEFILES=m -+CONFIG_ISO9660_FS=m -+CONFIG_JOLIET=y -+CONFIG_ZISOFS=y -+CONFIG_UDF_FS=m -+CONFIG_MSDOS_FS=m -+CONFIG_VFAT_FS=m -+CONFIG_FAT_DEFAULT_IOCHARSET="ascii" -+CONFIG_PROC_KCORE=y -+CONFIG_TMPFS=y -+CONFIG_TMPFS_POSIX_ACL=y -+CONFIG_HUGETLBFS=y -+CONFIG_CONFIGFS_FS=m -+CONFIG_ECRYPT_FS=m -+CONFIG_CRAMFS=m -+CONFIG_SQUASHFS=m -+CONFIG_NFS_FS=m -+CONFIG_NFS_V3_ACL=y -+CONFIG_NFS_V4=m -+CONFIG_NFS_V4_1=y -+CONFIG_NFS_FSCACHE=y -+CONFIG_NFSD=m -+CONFIG_NFSD_V3_ACL=y -+CONFIG_NFSD_V4=y -+CONFIG_CIFS=m -+CONFIG_CIFS_STATS=y -+CONFIG_CIFS_WEAK_PW_HASH=y -+CONFIG_CIFS_UPCALL=y -+CONFIG_CIFS_XATTR=y -+CONFIG_CIFS_POSIX=y -+CONFIG_CIFS_DFS_UPCALL=y -+CONFIG_CIFS_FSCACHE=y -+CONFIG_NLS=y -+CONFIG_NLS_DEFAULT="utf8" -+CONFIG_NLS_CODEPAGE_437=y -+CONFIG_NLS_CODEPAGE_737=m -+CONFIG_NLS_CODEPAGE_775=m -+CONFIG_NLS_CODEPAGE_850=m -+CONFIG_NLS_CODEPAGE_852=m -+CONFIG_NLS_CODEPAGE_855=m -+CONFIG_NLS_CODEPAGE_857=m -+CONFIG_NLS_CODEPAGE_860=m -+CONFIG_NLS_CODEPAGE_861=m -+CONFIG_NLS_CODEPAGE_862=m -+CONFIG_NLS_CODEPAGE_863=m -+CONFIG_NLS_CODEPAGE_864=m -+CONFIG_NLS_CODEPAGE_865=m -+CONFIG_NLS_CODEPAGE_866=m -+CONFIG_NLS_CODEPAGE_869=m -+CONFIG_NLS_CODEPAGE_936=m -+CONFIG_NLS_CODEPAGE_950=m -+CONFIG_NLS_CODEPAGE_932=m -+CONFIG_NLS_CODEPAGE_949=m -+CONFIG_NLS_CODEPAGE_874=m -+CONFIG_NLS_ISO8859_8=m -+CONFIG_NLS_CODEPAGE_1250=m -+CONFIG_NLS_CODEPAGE_1251=m -+CONFIG_NLS_ASCII=y -+CONFIG_NLS_ISO8859_1=m -+CONFIG_NLS_ISO8859_2=m -+CONFIG_NLS_ISO8859_3=m -+CONFIG_NLS_ISO8859_4=m -+CONFIG_NLS_ISO8859_5=m -+CONFIG_NLS_ISO8859_6=m -+CONFIG_NLS_ISO8859_7=m -+CONFIG_NLS_ISO8859_9=m -+CONFIG_NLS_ISO8859_13=m -+CONFIG_NLS_ISO8859_14=m -+CONFIG_NLS_ISO8859_15=m -+CONFIG_NLS_KOI8_R=m -+CONFIG_NLS_KOI8_U=m -+CONFIG_NLS_UTF8=m -+CONFIG_DLM=m -+CONFIG_DLM_DEBUG=y -+CONFIG_DYNAMIC_DEBUG=y -+CONFIG_DEBUG_INFO=y -+CONFIG_DEBUG_INFO_REDUCED=y -+# CONFIG_ENABLE_WARN_DEPRECATED is not set -+CONFIG_FRAME_WARN=2048 -+CONFIG_STRIP_ASM_SYMS=y -+CONFIG_DEBUG_FS=y -+CONFIG_HEADERS_CHECK=y -+# CONFIG_FRAME_POINTER is not set -+CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y -+CONFIG_MAGIC_SYSRQ=y -+CONFIG_DEBUG_VM=y -+CONFIG_DEBUG_MEMORY_INIT=y -+CONFIG_DEBUG_STACKOVERFLOW=y -+CONFIG_LOCKUP_DETECTOR=y -+CONFIG_SCHEDSTATS=y -+CONFIG_TIMER_STATS=y -+CONFIG_DEBUG_LIST=y -+CONFIG_DEBUG_CREDENTIALS=y -+CONFIG_RCU_CPU_STALL_TIMEOUT=60 -+CONFIG_ASYNC_RAID6_TEST=m -+CONFIG_SECURITY=y -+CONFIG_SECURITYFS=y -+CONFIG_SECURITY_NETWORK=y -+CONFIG_SECURITY_NETWORK_XFRM=y -+CONFIG_SECURITY_SELINUX=y -+CONFIG_SECURITY_SELINUX_BOOTPARAM=y -+CONFIG_SECURITY_SELINUX_DISABLE=y -+CONFIG_CRYPTO_PCRYPT=m -+CONFIG_CRYPTO_CRYPTD=m -+CONFIG_CRYPTO_TEST=m -+CONFIG_CRYPTO_CCM=m -+CONFIG_CRYPTO_GCM=m -+CONFIG_CRYPTO_CTS=m -+CONFIG_CRYPTO_LRW=m -+CONFIG_CRYPTO_PCBC=m -+CONFIG_CRYPTO_XTS=m -+CONFIG_CRYPTO_HMAC=y -+CONFIG_CRYPTO_XCBC=m -+CONFIG_CRYPTO_VMAC=m -+CONFIG_CRYPTO_MICHAEL_MIC=m -+CONFIG_CRYPTO_RMD128=m -+CONFIG_CRYPTO_RMD160=m -+CONFIG_CRYPTO_RMD256=m -+CONFIG_CRYPTO_RMD320=m -+CONFIG_CRYPTO_SHA1=y -+CONFIG_CRYPTO_SHA512=m -+CONFIG_CRYPTO_TGR192=m -+CONFIG_CRYPTO_WP512=m -+CONFIG_CRYPTO_ANUBIS=m -+CONFIG_CRYPTO_BLOWFISH=m -+CONFIG_CRYPTO_CAMELLIA=m -+CONFIG_CRYPTO_CAST5=m -+CONFIG_CRYPTO_CAST6=m -+CONFIG_CRYPTO_FCRYPT=m -+CONFIG_CRYPTO_KHAZAD=m -+CONFIG_CRYPTO_SEED=m -+CONFIG_CRYPTO_SERPENT=m -+CONFIG_CRYPTO_TEA=m -+CONFIG_CRYPTO_TWOFISH=m -+CONFIG_CRYPTO_LZO=m -+CONFIG_CRC_CCITT=m -+CONFIG_CRC7=m -diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig -index 1a0be022f91d..cfa268364ec7 100644 ---- a/arch/x86/Kconfig -+++ b/arch/x86/Kconfig -@@ -1009,6 +1009,21 @@ config NR_CPUS - config SCHED_SMT - def_bool y if SMP - -+config SMT_NICE -+ bool "SMT (Hyperthreading) aware nice priority and policy support" -+ depends on SCHED_MUQSS && SCHED_SMT -+ default y -+ ---help--- -+ Enabling Hyperthreading on Intel CPUs decreases the effectiveness -+ of the use of 'nice' levels and different scheduling policies -+ (e.g. realtime) due to sharing of CPU power between hyperthreads. -+ SMT nice support makes each logical CPU aware of what is running on -+ its hyperthread siblings, maintaining appropriate distribution of -+ CPU according to nice levels and scheduling policies at the expense -+ of slightly increased overhead. -+ -+ If unsure say Y here. -+ - config SCHED_MC - def_bool y - prompt "Multi-core scheduler support" -@@ -1043,6 +1059,80 @@ config SCHED_MC_PRIO - - If unsure say Y here. - -+choice -+ prompt "CPU scheduler runqueue sharing" -+ default RQ_MC if SCHED_MUQSS -+ default RQ_NONE -+ -+config RQ_NONE -+ bool "No sharing" -+ help -+ This is the default behaviour where the CPU scheduler has one runqueue -+ per CPU, whether it is a physical or logical CPU (hyperthread). -+ -+ This can still be enabled runtime with the boot parameter -+ rqshare=none -+ -+ If unsure, say N. -+ -+config RQ_SMT -+ bool "SMT (hyperthread) siblings" -+ depends on SCHED_SMT && SCHED_MUQSS -+ -+ help -+ With this option enabled, the CPU scheduler will have one runqueue -+ shared by SMT (hyperthread) siblings. As these logical cores share -+ one physical core, sharing the runqueue resource can lead to decreased -+ overhead, lower latency and higher throughput. -+ -+ This can still be enabled runtime with the boot parameter -+ rqshare=smt -+ -+ If unsure, say N. -+ -+config RQ_MC -+ bool "Multicore siblings" -+ depends on SCHED_MC && SCHED_MUQSS -+ help -+ With this option enabled, the CPU scheduler will have one runqueue -+ shared by multicore siblings in addition to any SMT siblings. -+ As these physical cores share caches, sharing the runqueue resource -+ will lead to lower latency, but its effects on overhead and throughput -+ are less predictable. As a general rule, 6 or fewer cores will likely -+ benefit from this, while larger CPUs will only derive a latency -+ benefit. If your workloads are primarily single threaded, this will -+ possibly worsen throughput. If you are only concerned about latency -+ then enable this regardless of how many cores you have. -+ -+ This can still be enabled runtime with the boot parameter -+ rqshare=mc -+ -+ If unsure, say Y. -+ -+config RQ_SMP -+ bool "Symmetric Multi-Processing" -+ depends on SMP && SCHED_MUQSS -+ help -+ With this option enabled, the CPU scheduler will have one runqueue -+ shared by all physical CPUs unless they are on separate NUMA nodes. -+ As physical CPUs usually do not share resources, sharing the runqueue -+ will normally worsen throughput but improve latency. If you only -+ care about latency enable this. -+ -+ This can still be enabled runtime with the boot parameter -+ rqshare=smp -+ -+ If unsure, say N. -+endchoice -+ -+config SHARERQ -+ int -+ default 0 if RQ_NONE -+ default 1 if RQ_SMT -+ default 2 if RQ_MC -+ default 3 if RQ_SMP -+ -+ - config UP_LATE_INIT - def_bool y - depends on !SMP && X86_LOCAL_APIC -@@ -1405,7 +1495,7 @@ config HIGHMEM64G - endchoice - - choice -- prompt "Memory split" if EXPERT -+ prompt "Memory split" - default VMSPLIT_3G - depends on X86_32 - ---help--- -@@ -1425,17 +1515,17 @@ choice - option alone! - - config VMSPLIT_3G -- bool "3G/1G user/kernel split" -+ bool "Default 896MB lowmem (3G/1G user/kernel split)" - config VMSPLIT_3G_OPT - depends on !X86_PAE -- bool "3G/1G user/kernel split (for full 1G low memory)" -+ bool "1GB lowmem (3G/1G user/kernel split)" - config VMSPLIT_2G -- bool "2G/2G user/kernel split" -+ bool "2GB lowmem (2G/2G user/kernel split)" - config VMSPLIT_2G_OPT - depends on !X86_PAE -- bool "2G/2G user/kernel split (for full 2G low memory)" -+ bool "2GB lowmem (2G/2G user/kernel split)" - config VMSPLIT_1G -- bool "1G/3G user/kernel split" -+ bool "3GB lowmem (1G/3G user/kernel split)" - endchoice - - config PAGE_OFFSET -diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig -index 0eb9f92f3717..e5890ae917e5 100644 ---- a/arch/x86/configs/i386_defconfig -+++ b/arch/x86/configs/i386_defconfig -@@ -41,7 +41,7 @@ CONFIG_SMP=y - CONFIG_X86_GENERIC=y - CONFIG_HPET_TIMER=y - CONFIG_SCHED_SMT=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y - CONFIG_X86_MCE=y - CONFIG_X86_REBOOTFIXUPS=y -diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig -index e32fc1f274d8..4368ba4f7967 100644 ---- a/arch/x86/configs/x86_64_defconfig -+++ b/arch/x86/configs/x86_64_defconfig -@@ -40,7 +40,7 @@ CONFIG_SMP=y - CONFIG_CALGARY_IOMMU=y - CONFIG_NR_CPUS=64 - CONFIG_SCHED_SMT=y --CONFIG_PREEMPT_VOLUNTARY=y -+CONFIG_PREEMPT=y - CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y - CONFIG_X86_MCE=y - CONFIG_MICROCODE=y -diff --git a/drivers/block/swim.c b/drivers/block/swim.c -index 0e31884a9519..16fcfbde31d5 100644 ---- a/drivers/block/swim.c -+++ b/drivers/block/swim.c -@@ -332,7 +332,7 @@ static inline void swim_motor(struct swim __iomem *base, - if (swim_readbit(base, MOTOR_ON)) - break; - current->state = TASK_INTERRUPTIBLE; -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - } - } else if (action == OFF) { - swim_action(base, MOTOR_OFF); -@@ -351,7 +351,7 @@ static inline void swim_eject(struct swim __iomem *base) - if (!swim_readbit(base, DISK_IN)) - break; - current->state = TASK_INTERRUPTIBLE; -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - } - swim_select(base, RELAX); - } -@@ -375,7 +375,7 @@ static inline int swim_step(struct swim __iomem *base) - for (wait = 0; wait < HZ; wait++) { - - current->state = TASK_INTERRUPTIBLE; -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - - swim_select(base, RELAX); - if (!swim_readbit(base, STEP)) -diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c -index 2fee65886d50..4ca0bae3df58 100644 ---- a/drivers/bluetooth/hci_qca.c -+++ b/drivers/bluetooth/hci_qca.c -@@ -980,7 +980,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) - * then host can communicate with new baudrate to controller - */ - set_current_state(TASK_UNINTERRUPTIBLE); -- schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS)); -+ schedule_msec_hrtimeout((BAUDRATE_SETTLE_TIMEOUT_MS)); - set_current_state(TASK_RUNNING); - - if (qcadev->btsoc_type == QCA_WCN3990) -diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c -index 7fc9612070a1..5a7f8a879001 100644 ---- a/drivers/char/ipmi/ipmi_msghandler.c -+++ b/drivers/char/ipmi/ipmi_msghandler.c -@@ -3453,7 +3453,7 @@ static void cleanup_smi_msgs(struct ipmi_smi *intf) - /* Current message first, to preserve order */ - while (intf->curr_msg && !list_empty(&intf->waiting_rcv_msgs)) { - /* Wait for the message to clear out. */ -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - } - - /* No need for locks, the interface is down. */ -diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c -index 29e67a80fb20..73bd0eca5fe5 100644 ---- a/drivers/char/ipmi/ipmi_ssif.c -+++ b/drivers/char/ipmi/ipmi_ssif.c -@@ -1208,7 +1208,7 @@ static void shutdown_ssif(void *send_info) - - /* make sure the driver is not looking for flags any more. */ - while (ssif_info->ssif_state != SSIF_NORMAL) -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - - ssif_info->stopping = true; - del_timer_sync(&ssif_info->retry_timer); -diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c -index 5918ea7499bb..5228e78df804 100644 ---- a/drivers/char/snsc.c -+++ b/drivers/char/snsc.c -@@ -198,7 +198,7 @@ scdrv_read(struct file *file, char __user *buf, size_t count, loff_t *f_pos) - add_wait_queue(&sd->sd_rq, &wait); - spin_unlock_irqrestore(&sd->sd_rlock, flags); - -- schedule_timeout(msecs_to_jiffies(SCDRV_TIMEOUT)); -+ schedule_msec_hrtimeout((SCDRV_TIMEOUT)); - - remove_wait_queue(&sd->sd_rq, &wait); - if (signal_pending(current)) { -@@ -294,7 +294,7 @@ scdrv_write(struct file *file, const char __user *buf, - add_wait_queue(&sd->sd_wq, &wait); - spin_unlock_irqrestore(&sd->sd_wlock, flags); - -- schedule_timeout(msecs_to_jiffies(SCDRV_TIMEOUT)); -+ schedule_msec_hrtimeout((SCDRV_TIMEOUT)); - - remove_wait_queue(&sd->sd_wq, &wait); - if (signal_pending(current)) { -diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c -index d0fd147ef75f..730ae4fe6b85 100644 ---- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c -+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c -@@ -235,7 +235,7 @@ static int vmw_fifo_wait_noirq(struct vmw_private *dev_priv, - DRM_ERROR("SVGA device lockup.\n"); - break; - } -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - if (interruptible && signal_pending(current)) { - ret = -ERESTARTSYS; - break; -diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c -index c3ad4478266b..7e2a29d56459 100644 ---- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c -+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c -@@ -202,7 +202,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv, - break; - } - if (lazy) -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - else if ((++count & 0x0F) == 0) { - /** - * FIXME: Use schedule_hr_timeout here for -diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c -index 9545a346044f..c24cf1302ec7 100644 ---- a/drivers/hwmon/fam15h_power.c -+++ b/drivers/hwmon/fam15h_power.c -@@ -237,7 +237,7 @@ static ssize_t power1_average_show(struct device *dev, - prev_ptsc[cu] = data->cpu_sw_pwr_ptsc[cu]; - } - -- leftover = schedule_timeout_interruptible(msecs_to_jiffies(data->power_period)); -+ leftover = schedule_msec_hrtimeout_interruptible((data->power_period)); - if (leftover) - return 0; - -diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c -index 6bbb0b1e6032..f4b83648c405 100644 ---- a/drivers/iio/light/tsl2563.c -+++ b/drivers/iio/light/tsl2563.c -@@ -282,11 +282,7 @@ static void tsl2563_wait_adc(struct tsl2563_chip *chip) - default: - delay = 402; - } -- /* -- * TODO: Make sure that we wait at least required delay but why we -- * have to extend it one tick more? -- */ -- schedule_timeout_interruptible(msecs_to_jiffies(delay) + 2); -+ schedule_msec_hrtimeout_interruptible(delay + 1); - } - - static int tsl2563_adjust_gainlevel(struct tsl2563_chip *chip, u16 adc) -diff --git a/drivers/media/i2c/msp3400-driver.c b/drivers/media/i2c/msp3400-driver.c -index 3db966db83eb..f0fab7676f72 100644 ---- a/drivers/media/i2c/msp3400-driver.c -+++ b/drivers/media/i2c/msp3400-driver.c -@@ -179,7 +179,7 @@ static int msp_read(struct i2c_client *client, int dev, int addr) - break; - dev_warn(&client->dev, "I/O error #%d (read 0x%02x/0x%02x)\n", err, - dev, addr); -- schedule_timeout_interruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_interruptible((10)); - } - if (err == 3) { - dev_warn(&client->dev, "resetting chip, sound will go off.\n"); -@@ -220,7 +220,7 @@ static int msp_write(struct i2c_client *client, int dev, int addr, int val) - break; - dev_warn(&client->dev, "I/O error #%d (write 0x%02x/0x%02x)\n", err, - dev, addr); -- schedule_timeout_interruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_interruptible((10)); - } - if (err == 3) { - dev_warn(&client->dev, "resetting chip, sound will go off.\n"); -diff --git a/drivers/media/pci/cx18/cx18-gpio.c b/drivers/media/pci/cx18/cx18-gpio.c -index 012859e6dc7b..206bd08265a5 100644 ---- a/drivers/media/pci/cx18/cx18-gpio.c -+++ b/drivers/media/pci/cx18/cx18-gpio.c -@@ -90,11 +90,11 @@ static void gpio_reset_seq(struct cx18 *cx, u32 active_lo, u32 active_hi, - - /* Assert */ - gpio_update(cx, mask, ~active_lo); -- schedule_timeout_uninterruptible(msecs_to_jiffies(assert_msecs)); -+ schedule_msec_hrtimeout_uninterruptible((assert_msecs)); - - /* Deassert */ - gpio_update(cx, mask, ~active_hi); -- schedule_timeout_uninterruptible(msecs_to_jiffies(recovery_msecs)); -+ schedule_msec_hrtimeout_uninterruptible((recovery_msecs)); - } - - /* -diff --git a/drivers/media/pci/ivtv/ivtv-gpio.c b/drivers/media/pci/ivtv/ivtv-gpio.c -index f752f3993687..23372af61ebf 100644 ---- a/drivers/media/pci/ivtv/ivtv-gpio.c -+++ b/drivers/media/pci/ivtv/ivtv-gpio.c -@@ -117,7 +117,7 @@ void ivtv_reset_ir_gpio(struct ivtv *itv) - curout = (curout & ~0xF) | 1; - write_reg(curout, IVTV_REG_GPIO_OUT); - /* We could use something else for smaller time */ -- schedule_timeout_interruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_interruptible((1)); - curout |= 2; - write_reg(curout, IVTV_REG_GPIO_OUT); - curdir &= ~0x80; -@@ -137,11 +137,11 @@ int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value) - curout = read_reg(IVTV_REG_GPIO_OUT); - curout &= ~(1 << itv->card->xceive_pin); - write_reg(curout, IVTV_REG_GPIO_OUT); -- schedule_timeout_interruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_interruptible((1)); - - curout |= 1 << itv->card->xceive_pin; - write_reg(curout, IVTV_REG_GPIO_OUT); -- schedule_timeout_interruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_interruptible((1)); - return 0; - } - -diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c -index 4cdc6d2be85d..22c0803cbff3 100644 ---- a/drivers/media/pci/ivtv/ivtv-ioctl.c -+++ b/drivers/media/pci/ivtv/ivtv-ioctl.c -@@ -1154,7 +1154,7 @@ void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id std) - TASK_UNINTERRUPTIBLE); - if ((read_reg(IVTV_REG_DEC_LINE_FIELD) >> 16) < 100) - break; -- schedule_timeout(msecs_to_jiffies(25)); -+ schedule_msec_hrtimeout((25)); - } - finish_wait(&itv->vsync_waitq, &wait); - mutex_lock(&itv->serialize_lock); -diff --git a/drivers/media/pci/ivtv/ivtv-streams.c b/drivers/media/pci/ivtv/ivtv-streams.c -index d27c6df97566..e9ffc4eeb478 100644 ---- a/drivers/media/pci/ivtv/ivtv-streams.c -+++ b/drivers/media/pci/ivtv/ivtv-streams.c -@@ -834,7 +834,7 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) - while (!test_bit(IVTV_F_I_EOS, &itv->i_flags) && - time_before(jiffies, - then + msecs_to_jiffies(2000))) { -- schedule_timeout(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout((10)); - } - - /* To convert jiffies to ms, we must multiply by 1000 -diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c -index 0f292c6ba338..9d7f22fe1ca8 100644 ---- a/drivers/media/radio/radio-mr800.c -+++ b/drivers/media/radio/radio-mr800.c -@@ -378,7 +378,7 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *priv, - retval = -ENODATA; - break; - } -- if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { -+ if (schedule_msec_hrtimeout_interruptible((10))) { - retval = -ERESTARTSYS; - break; - } -diff --git a/drivers/media/radio/radio-tea5777.c b/drivers/media/radio/radio-tea5777.c -index 04ed1a5d1177..d593d28dc286 100644 ---- a/drivers/media/radio/radio-tea5777.c -+++ b/drivers/media/radio/radio-tea5777.c -@@ -245,7 +245,7 @@ static int radio_tea5777_update_read_reg(struct radio_tea5777 *tea, int wait) - } - - if (wait) { -- if (schedule_timeout_interruptible(msecs_to_jiffies(wait))) -+ if (schedule_msec_hrtimeout_interruptible((wait))) - return -ERESTARTSYS; - } - -diff --git a/drivers/media/radio/tea575x.c b/drivers/media/radio/tea575x.c -index 7412fe1b10c6..92dce75e6ce9 100644 ---- a/drivers/media/radio/tea575x.c -+++ b/drivers/media/radio/tea575x.c -@@ -416,7 +416,7 @@ int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea, - for (;;) { - if (time_after(jiffies, timeout)) - break; -- if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { -+ if (schedule_msec_hrtimeout_interruptible((10))) { - /* some signal arrived, stop search */ - tea->val &= ~TEA575X_BIT_SEARCH; - snd_tea575x_set_freq(tea); -diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c -index d6fb2e1a759a..7ac951b84beb 100644 ---- a/drivers/mfd/ucb1x00-core.c -+++ b/drivers/mfd/ucb1x00-core.c -@@ -253,7 +253,7 @@ unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync) - break; - /* yield to other processes */ - set_current_state(TASK_INTERRUPTIBLE); -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - } - - return UCB_ADC_DAT(val); -diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c -index 05a890ce2ab8..f6eb97bc3a2c 100644 ---- a/drivers/misc/sgi-xp/xpc_channel.c -+++ b/drivers/misc/sgi-xp/xpc_channel.c -@@ -834,7 +834,7 @@ xpc_allocate_msg_wait(struct xpc_channel *ch) - - atomic_inc(&ch->n_on_msg_allocate_wq); - prepare_to_wait(&ch->msg_allocate_wq, &wait, TASK_INTERRUPTIBLE); -- ret = schedule_timeout(1); -+ ret = schedule_min_hrtimeout(); - finish_wait(&ch->msg_allocate_wq, &wait); - atomic_dec(&ch->n_on_msg_allocate_wq); - -diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c -index 433a14b9f731..4d197a99472b 100644 ---- a/drivers/net/caif/caif_hsi.c -+++ b/drivers/net/caif/caif_hsi.c -@@ -939,7 +939,7 @@ static void cfhsi_wake_down(struct work_struct *work) - break; - - set_current_state(TASK_INTERRUPTIBLE); -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - retry--; - } - -diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c -index 13238a72a338..fc51ae55c63f 100644 ---- a/drivers/net/can/usb/peak_usb/pcan_usb.c -+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c -@@ -250,7 +250,7 @@ static int pcan_usb_write_mode(struct peak_usb_device *dev, u8 onoff) - } else { - /* the PCAN-USB needs time to init */ - set_current_state(TASK_INTERRUPTIBLE); -- schedule_timeout(msecs_to_jiffies(PCAN_USB_STARTUP_TIMEOUT)); -+ schedule_msec_hrtimeout((PCAN_USB_STARTUP_TIMEOUT)); - } - - return err; -diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c -index c3c9ba44e2a1..1bc66289699f 100644 ---- a/drivers/net/usb/lan78xx.c -+++ b/drivers/net/usb/lan78xx.c -@@ -2681,7 +2681,7 @@ static void lan78xx_terminate_urbs(struct lan78xx_net *dev) - while (!skb_queue_empty(&dev->rxq) && - !skb_queue_empty(&dev->txq) && - !skb_queue_empty(&dev->done)) { -- schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); -+ schedule_msec_hrtimeout((UNLINK_TIMEOUT_MS)); - set_current_state(TASK_UNINTERRUPTIBLE); - netif_dbg(dev, ifdown, dev->net, - "waited for %d urb completions\n", temp); -diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c -index 770aa624147f..9384de186bf9 100644 ---- a/drivers/net/usb/usbnet.c -+++ b/drivers/net/usb/usbnet.c -@@ -770,7 +770,7 @@ static void wait_skb_queue_empty(struct sk_buff_head *q) - spin_lock_irqsave(&q->lock, flags); - while (!skb_queue_empty(q)) { - spin_unlock_irqrestore(&q->lock, flags); -- schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); -+ schedule_msec_hrtimeout((UNLINK_TIMEOUT_MS)); - set_current_state(TASK_UNINTERRUPTIBLE); - spin_lock_irqsave(&q->lock, flags); - } -diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c -index 910db46db6a1..497b01ab32d4 100644 ---- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c -+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c -@@ -830,7 +830,7 @@ static int ipw2100_hw_send_command(struct ipw2100_priv *priv, - * doesn't seem to have as many firmware restart cycles... - * - * As a test, we're sticking in a 1/100s delay here */ -- schedule_timeout_uninterruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_uninterruptible((10)); - - return 0; - -@@ -1281,7 +1281,7 @@ static int ipw2100_start_adapter(struct ipw2100_priv *priv) - IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n"); - i = 5000; - do { -- schedule_timeout_uninterruptible(msecs_to_jiffies(40)); -+ schedule_msec_hrtimeout_uninterruptible((40)); - /* Todo... wait for sync command ... */ - - read_register(priv->net_dev, IPW_REG_INTA, &inta); -diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c -index f12b9da69255..6ca6eecbdb2d 100644 ---- a/drivers/parport/ieee1284.c -+++ b/drivers/parport/ieee1284.c -@@ -208,7 +208,7 @@ int parport_wait_peripheral(struct parport *port, - /* parport_wait_event didn't time out, but the - * peripheral wasn't actually ready either. - * Wait for another 10ms. */ -- schedule_timeout_interruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_interruptible((10)); - } - } - -diff --git a/drivers/parport/ieee1284_ops.c b/drivers/parport/ieee1284_ops.c -index 5d41dda6da4e..34705f6b423f 100644 ---- a/drivers/parport/ieee1284_ops.c -+++ b/drivers/parport/ieee1284_ops.c -@@ -537,7 +537,7 @@ size_t parport_ieee1284_ecp_read_data (struct parport *port, - /* Yield the port for a while. */ - if (count && dev->port->irq != PARPORT_IRQ_NONE) { - parport_release (dev); -- schedule_timeout_interruptible(msecs_to_jiffies(40)); -+ schedule_msec_hrtimeout_interruptible((40)); - parport_claim_or_block (dev); - } - else -diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c -index c5ece7ef08c6..9256fb502545 100644 ---- a/drivers/platform/x86/intel_ips.c -+++ b/drivers/platform/x86/intel_ips.c -@@ -809,7 +809,7 @@ static int ips_adjust(void *data) - ips_gpu_lower(ips); - - sleep: -- schedule_timeout_interruptible(msecs_to_jiffies(IPS_ADJUST_PERIOD)); -+ schedule_msec_hrtimeout_interruptible((IPS_ADJUST_PERIOD)); - } while (!kthread_should_stop()); - - dev_dbg(ips->dev, "ips-adjust thread stopped\n"); -@@ -985,7 +985,7 @@ static int ips_monitor(void *data) - seqno_timestamp = get_jiffies_64(); - - old_cpu_power = thm_readl(THM_CEC); -- schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); -+ schedule_msec_hrtimeout_interruptible((IPS_SAMPLE_PERIOD)); - - /* Collect an initial average */ - for (i = 0; i < IPS_SAMPLE_COUNT; i++) { -@@ -1012,7 +1012,7 @@ static int ips_monitor(void *data) - mchp_samples[i] = mchp; - } - -- schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); -+ schedule_msec_hrtimeout_interruptible((IPS_SAMPLE_PERIOD)); - if (kthread_should_stop()) - break; - } -@@ -1039,7 +1039,7 @@ static int ips_monitor(void *data) - * us to reduce the sample frequency if the CPU and GPU are idle. - */ - old_cpu_power = thm_readl(THM_CEC); -- schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); -+ schedule_msec_hrtimeout_interruptible((IPS_SAMPLE_PERIOD)); - last_sample_period = IPS_SAMPLE_PERIOD; - - timer_setup(&ips->timer, monitor_timeout, TIMER_DEFERRABLE); -diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c -index 483c7993516b..fddbaa475066 100644 ---- a/drivers/rtc/rtc-wm8350.c -+++ b/drivers/rtc/rtc-wm8350.c -@@ -119,7 +119,7 @@ static int wm8350_rtc_settime(struct device *dev, struct rtc_time *tm) - /* Wait until confirmation of stopping */ - do { - rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL); -- schedule_timeout_uninterruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_uninterruptible((1)); - } while (--retries && !(rtc_ctrl & WM8350_RTC_STS)); - - if (!retries) { -@@ -202,7 +202,7 @@ static int wm8350_rtc_stop_alarm(struct wm8350 *wm8350) - /* Wait until confirmation of stopping */ - do { - rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL); -- schedule_timeout_uninterruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_uninterruptible((1)); - } while (retries-- && !(rtc_ctrl & WM8350_RTC_ALMSTS)); - - if (!(rtc_ctrl & WM8350_RTC_ALMSTS)) -@@ -225,7 +225,7 @@ static int wm8350_rtc_start_alarm(struct wm8350 *wm8350) - /* Wait until confirmation */ - do { - rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL); -- schedule_timeout_uninterruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_uninterruptible((1)); - } while (retries-- && rtc_ctrl & WM8350_RTC_ALMSTS); - - if (rtc_ctrl & WM8350_RTC_ALMSTS) -diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c -index 8cbd3c9f0b4c..7e3f9baa4ac6 100644 ---- a/drivers/scsi/fnic/fnic_scsi.c -+++ b/drivers/scsi/fnic/fnic_scsi.c -@@ -217,7 +217,7 @@ int fnic_fw_reset_handler(struct fnic *fnic) - - /* wait for io cmpl */ - while (atomic_read(&fnic->in_flight)) -- schedule_timeout(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout((1)); - - spin_lock_irqsave(&fnic->wq_copy_lock[0], flags); - -@@ -2255,7 +2255,7 @@ static int fnic_clean_pending_aborts(struct fnic *fnic, - } - } - -- schedule_timeout(msecs_to_jiffies(2 * fnic->config.ed_tov)); -+ schedule_msec_hrtimeout((2 * fnic->config.ed_tov)); - - /* walk again to check, if IOs are still pending in fw */ - if (fnic_is_abts_pending(fnic, lr_sc)) -diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c -index 5c7858e735c9..b56a01420918 100644 ---- a/drivers/scsi/lpfc/lpfc_scsi.c -+++ b/drivers/scsi/lpfc/lpfc_scsi.c -@@ -5201,7 +5201,7 @@ lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, - tgt_id, lun_id, context); - later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; - while (time_after(later, jiffies) && cnt) { -- schedule_timeout_uninterruptible(msecs_to_jiffies(20)); -+ schedule_msec_hrtimeout_uninterruptible((20)); - cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); - } - if (cnt) { -diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c -index d9b2e46424aa..4a313a0f2039 100644 ---- a/drivers/scsi/snic/snic_scsi.c -+++ b/drivers/scsi/snic/snic_scsi.c -@@ -2354,7 +2354,7 @@ snic_reset(struct Scsi_Host *shost, struct scsi_cmnd *sc) - - /* Wait for all the IOs that are entered in Qcmd */ - while (atomic_read(&snic->ios_inflight)) -- schedule_timeout(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout((1)); - - ret = snic_issue_hba_reset(snic, sc); - if (ret) { -diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c -index 4dee2fc37aed..2bb1c1157636 100644 ---- a/drivers/staging/comedi/drivers/ni_mio_common.c -+++ b/drivers/staging/comedi/drivers/ni_mio_common.c -@@ -4650,7 +4650,7 @@ static int cs5529_wait_for_idle(struct comedi_device *dev) - if ((status & NI67XX_CAL_STATUS_BUSY) == 0) - break; - set_current_state(TASK_INTERRUPTIBLE); -- if (schedule_timeout(1)) -+ if (schedule_min_hrtimeout()) - return -EIO; - } - if (i == timeout) { -diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c -new file mode 100644 -index 000000000000..8cca151741b2 ---- /dev/null -+++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c -@@ -0,0 +1,426 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * GPL HEADER START -+ * -+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 only, -+ * as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, but -+ * WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -+ * General Public License version 2 for more details (a copy is included -+ * in the LICENSE file that accompanied this code). -+ * -+ * You should have received a copy of the GNU General Public License -+ * version 2 along with this program; If not, see -+ * http://www.gnu.org/licenses/gpl-2.0.html -+ * -+ * GPL HEADER END -+ */ -+/* -+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. -+ * Use is subject to license terms. -+ * -+ * Copyright (c) 2012, Intel Corporation. -+ */ -+/* -+ * This file is part of Lustre, http://www.lustre.org/ -+ * Lustre is a trademark of Sun Microsystems, Inc. -+ * -+ * lnet/lnet/lib-eq.c -+ * -+ * Library level Event queue management routines -+ */ -+ -+#define DEBUG_SUBSYSTEM S_LNET -+ -+#include -+ -+/** -+ * Create an event queue that has room for \a count number of events. -+ * -+ * The event queue is circular and older events will be overwritten by new -+ * ones if they are not removed in time by the user using the functions -+ * LNetEQGet(), LNetEQWait(), or LNetEQPoll(). It is up to the user to -+ * determine the appropriate size of the event queue to prevent this loss -+ * of events. Note that when EQ handler is specified in \a callback, no -+ * event loss can happen, since the handler is run for each event deposited -+ * into the EQ. -+ * -+ * \param count The number of events to be stored in the event queue. It -+ * will be rounded up to the next power of two. -+ * \param callback A handler function that runs when an event is deposited -+ * into the EQ. The constant value LNET_EQ_HANDLER_NONE can be used to -+ * indicate that no event handler is desired. -+ * \param handle On successful return, this location will hold a handle for -+ * the newly created EQ. -+ * -+ * \retval 0 On success. -+ * \retval -EINVAL If an parameter is not valid. -+ * \retval -ENOMEM If memory for the EQ can't be allocated. -+ * -+ * \see lnet_eq_handler_t for the discussion on EQ handler semantics. -+ */ -+int -+LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback, -+ struct lnet_handle_eq *handle) -+{ -+ struct lnet_eq *eq; -+ -+ LASSERT(the_lnet.ln_refcount > 0); -+ -+ /* -+ * We need count to be a power of 2 so that when eq_{enq,deq}_seq -+ * overflow, they don't skip entries, so the queue has the same -+ * apparent capacity at all times -+ */ -+ if (count) -+ count = roundup_pow_of_two(count); -+ -+ if (callback != LNET_EQ_HANDLER_NONE && count) -+ CWARN("EQ callback is guaranteed to get every event, do you still want to set eqcount %d for polling event which will have locking overhead? Please contact with developer to confirm\n", count); -+ -+ /* -+ * count can be 0 if only need callback, we can eliminate -+ * overhead of enqueue event -+ */ -+ if (!count && callback == LNET_EQ_HANDLER_NONE) -+ return -EINVAL; -+ -+ eq = kzalloc(sizeof(*eq), GFP_NOFS); -+ if (!eq) -+ return -ENOMEM; -+ -+ if (count) { -+ eq->eq_events = kvmalloc_array(count, sizeof(struct lnet_event), -+ GFP_KERNEL | __GFP_ZERO); -+ if (!eq->eq_events) -+ goto failed; -+ /* -+ * NB allocator has set all event sequence numbers to 0, -+ * so all them should be earlier than eq_deq_seq -+ */ -+ } -+ -+ eq->eq_deq_seq = 1; -+ eq->eq_enq_seq = 1; -+ eq->eq_size = count; -+ eq->eq_callback = callback; -+ -+ eq->eq_refs = cfs_percpt_alloc(lnet_cpt_table(), -+ sizeof(*eq->eq_refs[0])); -+ if (!eq->eq_refs) -+ goto failed; -+ -+ /* MUST hold both exclusive lnet_res_lock */ -+ lnet_res_lock(LNET_LOCK_EX); -+ /* -+ * NB: hold lnet_eq_wait_lock for EQ link/unlink, so we can do -+ * both EQ lookup and poll event with only lnet_eq_wait_lock -+ */ -+ lnet_eq_wait_lock(); -+ -+ lnet_res_lh_initialize(&the_lnet.ln_eq_container, &eq->eq_lh); -+ list_add(&eq->eq_list, &the_lnet.ln_eq_container.rec_active); -+ -+ lnet_eq_wait_unlock(); -+ lnet_res_unlock(LNET_LOCK_EX); -+ -+ lnet_eq2handle(handle, eq); -+ return 0; -+ -+failed: -+ kvfree(eq->eq_events); -+ -+ if (eq->eq_refs) -+ cfs_percpt_free(eq->eq_refs); -+ -+ kfree(eq); -+ return -ENOMEM; -+} -+EXPORT_SYMBOL(LNetEQAlloc); -+ -+/** -+ * Release the resources associated with an event queue if it's idle; -+ * otherwise do nothing and it's up to the user to try again. -+ * -+ * \param eqh A handle for the event queue to be released. -+ * -+ * \retval 0 If the EQ is not in use and freed. -+ * \retval -ENOENT If \a eqh does not point to a valid EQ. -+ * \retval -EBUSY If the EQ is still in use by some MDs. -+ */ -+int -+LNetEQFree(struct lnet_handle_eq eqh) -+{ -+ struct lnet_eq *eq; -+ struct lnet_event *events = NULL; -+ int **refs = NULL; -+ int *ref; -+ int rc = 0; -+ int size = 0; -+ int i; -+ -+ LASSERT(the_lnet.ln_refcount > 0); -+ -+ lnet_res_lock(LNET_LOCK_EX); -+ /* -+ * NB: hold lnet_eq_wait_lock for EQ link/unlink, so we can do -+ * both EQ lookup and poll event with only lnet_eq_wait_lock -+ */ -+ lnet_eq_wait_lock(); -+ -+ eq = lnet_handle2eq(&eqh); -+ if (!eq) { -+ rc = -ENOENT; -+ goto out; -+ } -+ -+ cfs_percpt_for_each(ref, i, eq->eq_refs) { -+ LASSERT(*ref >= 0); -+ if (!*ref) -+ continue; -+ -+ CDEBUG(D_NET, "Event equeue (%d: %d) busy on destroy.\n", -+ i, *ref); -+ rc = -EBUSY; -+ goto out; -+ } -+ -+ /* stash for free after lock dropped */ -+ events = eq->eq_events; -+ size = eq->eq_size; -+ refs = eq->eq_refs; -+ -+ lnet_res_lh_invalidate(&eq->eq_lh); -+ list_del(&eq->eq_list); -+ kfree(eq); -+ out: -+ lnet_eq_wait_unlock(); -+ lnet_res_unlock(LNET_LOCK_EX); -+ -+ kvfree(events); -+ if (refs) -+ cfs_percpt_free(refs); -+ -+ return rc; -+} -+EXPORT_SYMBOL(LNetEQFree); -+ -+void -+lnet_eq_enqueue_event(struct lnet_eq *eq, struct lnet_event *ev) -+{ -+ /* MUST called with resource lock hold but w/o lnet_eq_wait_lock */ -+ int index; -+ -+ if (!eq->eq_size) { -+ LASSERT(eq->eq_callback != LNET_EQ_HANDLER_NONE); -+ eq->eq_callback(ev); -+ return; -+ } -+ -+ lnet_eq_wait_lock(); -+ ev->sequence = eq->eq_enq_seq++; -+ -+ LASSERT(eq->eq_size == LOWEST_BIT_SET(eq->eq_size)); -+ index = ev->sequence & (eq->eq_size - 1); -+ -+ eq->eq_events[index] = *ev; -+ -+ if (eq->eq_callback != LNET_EQ_HANDLER_NONE) -+ eq->eq_callback(ev); -+ -+ /* Wake anyone waiting in LNetEQPoll() */ -+ if (waitqueue_active(&the_lnet.ln_eq_waitq)) -+ wake_up_all(&the_lnet.ln_eq_waitq); -+ lnet_eq_wait_unlock(); -+} -+ -+static int -+lnet_eq_dequeue_event(struct lnet_eq *eq, struct lnet_event *ev) -+{ -+ int new_index = eq->eq_deq_seq & (eq->eq_size - 1); -+ struct lnet_event *new_event = &eq->eq_events[new_index]; -+ int rc; -+ -+ /* must called with lnet_eq_wait_lock hold */ -+ if (LNET_SEQ_GT(eq->eq_deq_seq, new_event->sequence)) -+ return 0; -+ -+ /* We've got a new event... */ -+ *ev = *new_event; -+ -+ CDEBUG(D_INFO, "event: %p, sequence: %lu, eq->size: %u\n", -+ new_event, eq->eq_deq_seq, eq->eq_size); -+ -+ /* ...but did it overwrite an event we've not seen yet? */ -+ if (eq->eq_deq_seq == new_event->sequence) { -+ rc = 1; -+ } else { -+ /* -+ * don't complain with CERROR: some EQs are sized small -+ * anyway; if it's important, the caller should complain -+ */ -+ CDEBUG(D_NET, "Event Queue Overflow: eq seq %lu ev seq %lu\n", -+ eq->eq_deq_seq, new_event->sequence); -+ rc = -EOVERFLOW; -+ } -+ -+ eq->eq_deq_seq = new_event->sequence + 1; -+ return rc; -+} -+ -+/** -+ * A nonblocking function that can be used to get the next event in an EQ. -+ * If an event handler is associated with the EQ, the handler will run before -+ * this function returns successfully. The event is removed from the queue. -+ * -+ * \param eventq A handle for the event queue. -+ * \param event On successful return (1 or -EOVERFLOW), this location will -+ * hold the next event in the EQ. -+ * -+ * \retval 0 No pending event in the EQ. -+ * \retval 1 Indicates success. -+ * \retval -ENOENT If \a eventq does not point to a valid EQ. -+ * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that -+ * at least one event between this event and the last event obtained from the -+ * EQ has been dropped due to limited space in the EQ. -+ */ -+ -+/** -+ * Block the calling process until there is an event in the EQ. -+ * If an event handler is associated with the EQ, the handler will run before -+ * this function returns successfully. This function returns the next event -+ * in the EQ and removes it from the EQ. -+ * -+ * \param eventq A handle for the event queue. -+ * \param event On successful return (1 or -EOVERFLOW), this location will -+ * hold the next event in the EQ. -+ * -+ * \retval 1 Indicates success. -+ * \retval -ENOENT If \a eventq does not point to a valid EQ. -+ * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that -+ * at least one event between this event and the last event obtained from the -+ * EQ has been dropped due to limited space in the EQ. -+ */ -+ -+static int -+lnet_eq_wait_locked(int *timeout_ms, long state) -+__must_hold(&the_lnet.ln_eq_wait_lock) -+{ -+ int tms = *timeout_ms; -+ int wait; -+ wait_queue_entry_t wl; -+ unsigned long now; -+ -+ if (!tms) -+ return -ENXIO; /* don't want to wait and no new event */ -+ -+ init_waitqueue_entry(&wl, current); -+ set_current_state(state); -+ add_wait_queue(&the_lnet.ln_eq_waitq, &wl); -+ -+ lnet_eq_wait_unlock(); -+ -+ if (tms < 0) { -+ schedule(); -+ } else { -+ now = jiffies; -+ schedule_msec_hrtimeout((tms)); -+ tms -= jiffies_to_msecs(jiffies - now); -+ if (tms < 0) /* no more wait but may have new event */ -+ tms = 0; -+ } -+ -+ wait = tms; /* might need to call here again */ -+ *timeout_ms = tms; -+ -+ lnet_eq_wait_lock(); -+ remove_wait_queue(&the_lnet.ln_eq_waitq, &wl); -+ -+ return wait; -+} -+ -+/** -+ * Block the calling process until there's an event from a set of EQs or -+ * timeout happens. -+ * -+ * If an event handler is associated with the EQ, the handler will run before -+ * this function returns successfully, in which case the corresponding event -+ * is consumed. -+ * -+ * LNetEQPoll() provides a timeout to allow applications to poll, block for a -+ * fixed period, or block indefinitely. -+ * -+ * \param eventqs,neq An array of EQ handles, and size of the array. -+ * \param timeout_ms Time in milliseconds to wait for an event to occur on -+ * one of the EQs. The constant LNET_TIME_FOREVER can be used to indicate an -+ * infinite timeout. -+ * \param interruptible, if true, use TASK_INTERRUPTIBLE, else TASK_NOLOAD -+ * \param event,which On successful return (1 or -EOVERFLOW), \a event will -+ * hold the next event in the EQs, and \a which will contain the index of the -+ * EQ from which the event was taken. -+ * -+ * \retval 0 No pending event in the EQs after timeout. -+ * \retval 1 Indicates success. -+ * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that -+ * at least one event between this event and the last event obtained from the -+ * EQ indicated by \a which has been dropped due to limited space in the EQ. -+ * \retval -ENOENT If there's an invalid handle in \a eventqs. -+ */ -+int -+LNetEQPoll(struct lnet_handle_eq *eventqs, int neq, int timeout_ms, -+ int interruptible, -+ struct lnet_event *event, int *which) -+{ -+ int wait = 1; -+ int rc; -+ int i; -+ -+ LASSERT(the_lnet.ln_refcount > 0); -+ -+ if (neq < 1) -+ return -ENOENT; -+ -+ lnet_eq_wait_lock(); -+ -+ for (;;) { -+ for (i = 0; i < neq; i++) { -+ struct lnet_eq *eq = lnet_handle2eq(&eventqs[i]); -+ -+ if (!eq) { -+ lnet_eq_wait_unlock(); -+ return -ENOENT; -+ } -+ -+ rc = lnet_eq_dequeue_event(eq, event); -+ if (rc) { -+ lnet_eq_wait_unlock(); -+ *which = i; -+ return rc; -+ } -+ } -+ -+ if (!wait) -+ break; -+ -+ /* -+ * return value of lnet_eq_wait_locked: -+ * -1 : did nothing and it's sure no new event -+ * 1 : sleep inside and wait until new event -+ * 0 : don't want to wait anymore, but might have new event -+ * so need to call dequeue again -+ */ -+ wait = lnet_eq_wait_locked(&timeout_ms, -+ interruptible ? TASK_INTERRUPTIBLE -+ : TASK_NOLOAD); -+ if (wait < 0) /* no new event */ -+ break; -+ } -+ -+ lnet_eq_wait_unlock(); -+ return 0; -+} -diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c -index 69e6abe14abf..7d23e214ac21 100644 ---- a/drivers/staging/rts5208/rtsx.c -+++ b/drivers/staging/rts5208/rtsx.c -@@ -507,7 +507,7 @@ static int rtsx_polling_thread(void *__dev) - - for (;;) { - set_current_state(TASK_INTERRUPTIBLE); -- schedule_timeout(msecs_to_jiffies(POLLING_INTERVAL)); -+ schedule_msec_hrtimeout((POLLING_INTERVAL)); - - /* lock the device pointers */ - mutex_lock(&dev->dev_mutex); -diff --git a/drivers/staging/speakup/speakup_acntpc.c b/drivers/staging/speakup/speakup_acntpc.c -index 28519754b2f0..a96805bbec5c 100644 ---- a/drivers/staging/speakup/speakup_acntpc.c -+++ b/drivers/staging/speakup/speakup_acntpc.c -@@ -198,7 +198,7 @@ static void do_catch_up(struct spk_synth *synth) - full_time_val = full_time->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); - if (synth_full()) { -- schedule_timeout(msecs_to_jiffies(full_time_val)); -+ schedule_msec_hrtimeout((full_time_val)); - continue; - } - set_current_state(TASK_RUNNING); -@@ -226,7 +226,7 @@ static void do_catch_up(struct spk_synth *synth) - jiffy_delta_val = jiffy_delta->u.n.value; - delay_time_val = delay_time->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout(delay_time_val); - jiff_max = jiffies + jiffy_delta_val; - } - } -diff --git a/drivers/staging/speakup/speakup_apollo.c b/drivers/staging/speakup/speakup_apollo.c -index 0877b4044c28..627102d048c1 100644 ---- a/drivers/staging/speakup/speakup_apollo.c -+++ b/drivers/staging/speakup/speakup_apollo.c -@@ -165,7 +165,7 @@ static void do_catch_up(struct spk_synth *synth) - if (!synth->io_ops->synth_out(synth, ch)) { - synth->io_ops->tiocmset(0, UART_MCR_RTS); - synth->io_ops->tiocmset(UART_MCR_RTS, 0); -- schedule_timeout(msecs_to_jiffies(full_time_val)); -+ schedule_msec_hrtimeout(full_time_val); - continue; - } - if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { -diff --git a/drivers/staging/speakup/speakup_decext.c b/drivers/staging/speakup/speakup_decext.c -index 3741c0fcf5bb..bff857b4aa5f 100644 ---- a/drivers/staging/speakup/speakup_decext.c -+++ b/drivers/staging/speakup/speakup_decext.c -@@ -176,7 +176,7 @@ static void do_catch_up(struct spk_synth *synth) - if (ch == '\n') - ch = 0x0D; - if (synth_full() || !synth->io_ops->synth_out(synth, ch)) { -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout(delay_time_val); - continue; - } - set_current_state(TASK_RUNNING); -diff --git a/drivers/staging/speakup/speakup_decpc.c b/drivers/staging/speakup/speakup_decpc.c -index 6649309e0342..c60e4712d817 100644 ---- a/drivers/staging/speakup/speakup_decpc.c -+++ b/drivers/staging/speakup/speakup_decpc.c -@@ -394,7 +394,7 @@ static void do_catch_up(struct spk_synth *synth) - if (ch == '\n') - ch = 0x0D; - if (dt_sendchar(ch)) { -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout((delay_time_val)); - continue; - } - set_current_state(TASK_RUNNING); -diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c -index a144f28ee1a8..c34764fafe2b 100644 ---- a/drivers/staging/speakup/speakup_dectlk.c -+++ b/drivers/staging/speakup/speakup_dectlk.c -@@ -244,7 +244,7 @@ static void do_catch_up(struct spk_synth *synth) - if (ch == '\n') - ch = 0x0D; - if (synth_full_val || !synth->io_ops->synth_out(synth, ch)) { -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout(delay_time_val); - continue; - } - set_current_state(TASK_RUNNING); -diff --git a/drivers/staging/speakup/speakup_dtlk.c b/drivers/staging/speakup/speakup_dtlk.c -index dbebed0eeeec..6d83c13ca4a6 100644 ---- a/drivers/staging/speakup/speakup_dtlk.c -+++ b/drivers/staging/speakup/speakup_dtlk.c -@@ -211,7 +211,7 @@ static void do_catch_up(struct spk_synth *synth) - delay_time_val = delay_time->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); - if (synth_full()) { -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout((delay_time_val)); - continue; - } - set_current_state(TASK_RUNNING); -@@ -227,7 +227,7 @@ static void do_catch_up(struct spk_synth *synth) - delay_time_val = delay_time->u.n.value; - jiffy_delta_val = jiffy_delta->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout((delay_time_val)); - jiff_max = jiffies + jiffy_delta_val; - } - } -diff --git a/drivers/staging/speakup/speakup_keypc.c b/drivers/staging/speakup/speakup_keypc.c -index 3901734982a4..4e8a7a98b46d 100644 ---- a/drivers/staging/speakup/speakup_keypc.c -+++ b/drivers/staging/speakup/speakup_keypc.c -@@ -199,7 +199,7 @@ spin_lock_irqsave(&speakup_info.spinlock, flags); - full_time_val = full_time->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); - if (synth_full()) { -- schedule_timeout(msecs_to_jiffies(full_time_val)); -+ schedule_msec_hrtimeout((full_time_val)); - continue; - } - set_current_state(TASK_RUNNING); -@@ -232,7 +232,7 @@ spin_lock_irqsave(&speakup_info.spinlock, flags); - jiffy_delta_val = jiffy_delta->u.n.value; - delay_time_val = delay_time->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); -- schedule_timeout(msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout((delay_time_val)); - jiff_max = jiffies+jiffy_delta_val; - } - } -diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c -index 25f259ee4ffc..b9721103e651 100644 ---- a/drivers/staging/speakup/synth.c -+++ b/drivers/staging/speakup/synth.c -@@ -93,12 +93,8 @@ static void _spk_do_catch_up(struct spk_synth *synth, int unicode) - spin_unlock_irqrestore(&speakup_info.spinlock, flags); - if (ch == '\n') - ch = synth->procspeech; -- if (unicode) -- ret = synth->io_ops->synth_out_unicode(synth, ch); -- else -- ret = synth->io_ops->synth_out(synth, ch); -- if (!ret) { -- schedule_timeout(msecs_to_jiffies(full_time_val)); -+ if (!synth->io_ops->synth_out(synth, ch)) { -+ schedule_msec_hrtimeout(full_time_val); - continue; - } - if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { -@@ -108,11 +104,9 @@ static void _spk_do_catch_up(struct spk_synth *synth, int unicode) - full_time_val = full_time->u.n.value; - spin_unlock_irqrestore(&speakup_info.spinlock, flags); - if (synth->io_ops->synth_out(synth, synth->procspeech)) -- schedule_timeout( -- msecs_to_jiffies(delay_time_val)); -+ schedule_msec_hrtimeout(delay_time_val); - else -- schedule_timeout( -- msecs_to_jiffies(full_time_val)); -+ schedule_msec_hrtimeout(full_time_val); - jiff_max = jiffies + jiffy_delta_val; - } - set_current_state(TASK_RUNNING); -diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c -index 3647b8f1ed28..9fb26ccc2b3b 100644 ---- a/drivers/staging/unisys/visornic/visornic_main.c -+++ b/drivers/staging/unisys/visornic/visornic_main.c -@@ -549,7 +549,7 @@ static int visornic_disable_with_timeout(struct net_device *netdev, - } - set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&devdata->priv_lock, flags); -- wait += schedule_timeout(msecs_to_jiffies(10)); -+ wait += schedule_msec_hrtimeout((10)); - spin_lock_irqsave(&devdata->priv_lock, flags); - } - -@@ -560,7 +560,7 @@ static int visornic_disable_with_timeout(struct net_device *netdev, - while (1) { - set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&devdata->priv_lock, flags); -- schedule_timeout(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout((10)); - spin_lock_irqsave(&devdata->priv_lock, flags); - if (atomic_read(&devdata->usage)) - break; -@@ -714,7 +714,7 @@ static int visornic_enable_with_timeout(struct net_device *netdev, - } - set_current_state(TASK_INTERRUPTIBLE); - spin_unlock_irqrestore(&devdata->priv_lock, flags); -- wait += schedule_timeout(msecs_to_jiffies(10)); -+ wait += schedule_msec_hrtimeout((10)); - spin_lock_irqsave(&devdata->priv_lock, flags); - } - -diff --git a/drivers/video/fbdev/omap/hwa742.c b/drivers/video/fbdev/omap/hwa742.c -index 6199d4806193..7c7165f2dad4 100644 ---- a/drivers/video/fbdev/omap/hwa742.c -+++ b/drivers/video/fbdev/omap/hwa742.c -@@ -926,7 +926,7 @@ static void hwa742_resume(void) - if (hwa742_read_reg(HWA742_PLL_DIV_REG) & (1 << 7)) - break; - set_current_state(TASK_UNINTERRUPTIBLE); -- schedule_timeout(msecs_to_jiffies(5)); -+ schedule_msec_hrtimeout((5)); - } - hwa742_set_update_mode(hwa742.update_mode_before_suspend); - } -diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c -index bbed039617a4..681ae041ea77 100644 ---- a/drivers/video/fbdev/pxafb.c -+++ b/drivers/video/fbdev/pxafb.c -@@ -1287,7 +1287,7 @@ static int pxafb_smart_thread(void *arg) - mutex_unlock(&fbi->ctrlr_lock); - - set_current_state(TASK_INTERRUPTIBLE); -- schedule_timeout(msecs_to_jiffies(30)); -+ schedule_msec_hrtimeout((30)); - } - - pr_debug("%s(): task ending\n", __func__); -diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c -index 2d9074295d7f..7df3e60e4e89 100644 ---- a/fs/btrfs/extent-tree.c -+++ b/fs/btrfs/extent-tree.c -@@ -5905,7 +5905,7 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) - flush = BTRFS_RESERVE_FLUSH_LIMIT; - - if (btrfs_transaction_in_commit(fs_info)) -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - } - - if (delalloc_lock) -diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c -index ffca2abf13d0..89b2a7f7397e 100644 ---- a/fs/btrfs/inode-map.c -+++ b/fs/btrfs/inode-map.c -@@ -75,7 +75,7 @@ static int caching_kthread(void *data) - btrfs_release_path(path); - root->ino_cache_progress = last; - up_read(&fs_info->commit_root_sem); -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - goto again; - } else - continue; -diff --git a/fs/proc/base.c b/fs/proc/base.c -index 7e9f07bf260d..87b8b504d4ac 100644 ---- a/fs/proc/base.c -+++ b/fs/proc/base.c -@@ -459,7 +459,7 @@ static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns, - seq_printf(m, "0 0 0\n"); - else - seq_printf(m, "%llu %llu %lu\n", -- (unsigned long long)task->se.sum_exec_runtime, -+ (unsigned long long)tsk_seruntime(task), - (unsigned long long)task->sched_info.run_delay, - task->sched_info.pcount); - -diff --git a/include/linux/freezer.h b/include/linux/freezer.h -index 21f5aa0b217f..ee9b46394fdf 100644 ---- a/include/linux/freezer.h -+++ b/include/linux/freezer.h -@@ -297,6 +297,7 @@ static inline void set_freezable(void) {} - #define wait_event_freezekillable_unsafe(wq, condition) \ - wait_event_killable(wq, condition) - -+#define pm_freezing (false) - #endif /* !CONFIG_FREEZER */ - - #endif /* FREEZER_H_INCLUDED */ -diff --git a/include/linux/init_task.h b/include/linux/init_task.h -index a7083a45a26c..c0fae13d6fc0 100644 ---- a/include/linux/init_task.h -+++ b/include/linux/init_task.h -@@ -46,7 +46,11 @@ extern struct cred init_cred; - #define INIT_CPU_TIMERS(s) - #endif - -+#ifdef CONFIG_SCHED_MUQSS -+#define INIT_TASK_COMM "MuQSS" -+#else - #define INIT_TASK_COMM "swapper" -+#endif - - /* Attach to the init_task data structure for proper alignment */ - #ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK -diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h -index 9e30ed6443db..7d6e7e7cdf9f 100644 ---- a/include/linux/ioprio.h -+++ b/include/linux/ioprio.h -@@ -53,6 +53,8 @@ enum { - */ - static inline int task_nice_ioprio(struct task_struct *task) - { -+ if (iso_task(task)) -+ return 0; - return (task_nice(task) + 20) / 5; - } - -diff --git a/include/linux/sched.h b/include/linux/sched.h -index 977cb57d7bc9..1cd022304c64 100644 ---- a/include/linux/sched.h -+++ b/include/linux/sched.h -@@ -28,6 +28,9 @@ - #include - #include - #include -+#ifdef CONFIG_SCHED_MUQSS -+#include -+#endif - - /* task_struct member predeclarations (sorted alphabetically): */ - struct audit_context; -@@ -208,13 +211,40 @@ struct task_group; - - extern void scheduler_tick(void); - --#define MAX_SCHEDULE_TIMEOUT LONG_MAX -- -+#define MAX_SCHEDULE_TIMEOUT LONG_MAX - extern long schedule_timeout(long timeout); - extern long schedule_timeout_interruptible(long timeout); - extern long schedule_timeout_killable(long timeout); - extern long schedule_timeout_uninterruptible(long timeout); - extern long schedule_timeout_idle(long timeout); -+ -+#ifdef CONFIG_HIGH_RES_TIMERS -+extern long schedule_msec_hrtimeout(long timeout); -+extern long schedule_min_hrtimeout(void); -+extern long schedule_msec_hrtimeout_interruptible(long timeout); -+extern long schedule_msec_hrtimeout_uninterruptible(long timeout); -+#else -+static inline long schedule_msec_hrtimeout(long timeout) -+{ -+ return schedule_timeout(msecs_to_jiffies(timeout)); -+} -+ -+static inline long schedule_min_hrtimeout(void) -+{ -+ return schedule_timeout(1); -+} -+ -+static inline long schedule_msec_hrtimeout_interruptible(long timeout) -+{ -+ return schedule_timeout_interruptible(msecs_to_jiffies(timeout)); -+} -+ -+static inline long schedule_msec_hrtimeout_uninterruptible(long timeout) -+{ -+ return schedule_timeout_uninterruptible(msecs_to_jiffies(timeout)); -+} -+#endif -+ - asmlinkage void schedule(void); - extern void schedule_preempt_disabled(void); - -@@ -613,9 +643,11 @@ struct task_struct { - unsigned int flags; - unsigned int ptrace; - -+#if defined(CONFIG_SMP) || defined(CONFIG_SCHED_MUQSS) -+ int on_cpu; -+#endif - #ifdef CONFIG_SMP - struct llist_node wake_entry; -- int on_cpu; - #ifdef CONFIG_THREAD_INFO_IN_TASK - /* Current CPU: */ - unsigned int cpu; -@@ -640,10 +672,25 @@ struct task_struct { - int static_prio; - int normal_prio; - unsigned int rt_priority; -+#ifdef CONFIG_SCHED_MUQSS -+ int time_slice; -+ u64 deadline; -+ skiplist_node node; /* Skip list node */ -+ u64 last_ran; -+ u64 sched_time; /* sched_clock time spent running */ -+#ifdef CONFIG_SMT_NICE -+ int smt_bias; /* Policy/nice level bias across smt siblings */ -+#endif -+#ifdef CONFIG_HOTPLUG_CPU -+ bool zerobound; /* Bound to CPU0 for hotplug */ -+#endif -+ unsigned long rt_timeout; -+#else /* CONFIG_SCHED_MUQSS */ - - const struct sched_class *sched_class; - struct sched_entity se; - struct sched_rt_entity rt; -+#endif - #ifdef CONFIG_CGROUP_SCHED - struct task_group *sched_task_group; - #endif -@@ -797,6 +844,10 @@ struct task_struct { - #ifdef CONFIG_ARCH_HAS_SCALED_CPUTIME - u64 utimescaled; - u64 stimescaled; -+#endif -+#ifdef CONFIG_SCHED_MUQSS -+ /* Unbanked cpu time */ -+ unsigned long utime_ns, stime_ns; - #endif - u64 gtime; - struct prev_cputime prev_cputime; -@@ -1209,6 +1260,40 @@ struct task_struct { - */ - }; - -+#ifdef CONFIG_SCHED_MUQSS -+#define tsk_seruntime(t) ((t)->sched_time) -+#define tsk_rttimeout(t) ((t)->rt_timeout) -+ -+static inline void tsk_cpus_current(struct task_struct *p) -+{ -+} -+ -+void print_scheduler_version(void); -+ -+static inline bool iso_task(struct task_struct *p) -+{ -+ return (p->policy == SCHED_ISO); -+} -+#else /* CFS */ -+#define tsk_seruntime(t) ((t)->se.sum_exec_runtime) -+#define tsk_rttimeout(t) ((t)->rt.timeout) -+ -+static inline void tsk_cpus_current(struct task_struct *p) -+{ -+ p->nr_cpus_allowed = current->nr_cpus_allowed; -+} -+ -+static inline void print_scheduler_version(void) -+{ -+ printk(KERN_INFO "CFS CPU scheduler.\n"); -+} -+ -+static inline bool iso_task(struct task_struct *p) -+{ -+ return false; -+} -+#endif /* CONFIG_SCHED_MUQSS */ -+ - static inline struct pid *task_pid(struct task_struct *task) - { - return task->thread_pid; -diff --git a/include/linux/sched/nohz.h b/include/linux/sched/nohz.h -index b36f4cf38111..61b03ea2edc9 100644 ---- a/include/linux/sched/nohz.h -+++ b/include/linux/sched/nohz.h -@@ -6,7 +6,7 @@ - * This is the interface between the scheduler and nohz/dynticks: - */ - --#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) -+#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) && !defined(CONFIG_SCHED_MUQSS) - extern void cpu_load_update_nohz_start(void); - extern void cpu_load_update_nohz_stop(void); - #else -@@ -21,7 +21,7 @@ extern int get_nohz_timer_target(void); - static inline void nohz_balance_enter_idle(int cpu) { } - #endif - --#ifdef CONFIG_NO_HZ_COMMON -+#if defined(CONFIG_NO_HZ_COMMON) && !defined(CONFIG_SCHED_MUQSS) - void calc_load_nohz_start(void); - void calc_load_nohz_stop(void); - #else -diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h -index 7d64feafc408..43c9d9e50c09 100644 ---- a/include/linux/sched/prio.h -+++ b/include/linux/sched/prio.h -@@ -20,8 +20,20 @@ - */ - - #define MAX_USER_RT_PRIO 100 -+ -+#ifdef CONFIG_SCHED_MUQSS -+/* Note different MAX_RT_PRIO */ -+#define MAX_RT_PRIO (MAX_USER_RT_PRIO + 1) -+ -+#define ISO_PRIO (MAX_RT_PRIO) -+#define NORMAL_PRIO (MAX_RT_PRIO + 1) -+#define IDLE_PRIO (MAX_RT_PRIO + 2) -+#define PRIO_LIMIT ((IDLE_PRIO) + 1) -+#else /* CONFIG_SCHED_MUQSS */ - #define MAX_RT_PRIO MAX_USER_RT_PRIO - -+#endif /* CONFIG_SCHED_MUQSS */ -+ - #define MAX_PRIO (MAX_RT_PRIO + NICE_WIDTH) - #define DEFAULT_PRIO (MAX_RT_PRIO + NICE_WIDTH / 2) - -diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h -index e5af028c08b4..010b2244e0b6 100644 ---- a/include/linux/sched/rt.h -+++ b/include/linux/sched/rt.h -@@ -24,8 +24,10 @@ static inline bool task_is_realtime(struct task_struct *tsk) - - if (policy == SCHED_FIFO || policy == SCHED_RR) - return true; -+#ifndef CONFIG_SCHED_MUQSS - if (policy == SCHED_DEADLINE) - return true; -+#endif - return false; - } - -diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h -index 108ede99e533..21f53ec1bb1f 100644 ---- a/include/linux/sched/task.h -+++ b/include/linux/sched/task.h -@@ -80,7 +80,7 @@ extern long kernel_wait4(pid_t, int __user *, int, struct rusage *); - extern void free_task(struct task_struct *tsk); - - /* sched_exec is called by processes performing an exec */ --#ifdef CONFIG_SMP -+#if defined(CONFIG_SMP) && !defined(CONFIG_SCHED_MUQSS) - extern void sched_exec(void); - #else - #define sched_exec() {} -diff --git a/include/linux/skip_list.h b/include/linux/skip_list.h -new file mode 100644 -index 000000000000..d4be84ba273b ---- /dev/null -+++ b/include/linux/skip_list.h -@@ -0,0 +1,33 @@ -+#ifndef _LINUX_SKIP_LISTS_H -+#define _LINUX_SKIP_LISTS_H -+typedef u64 keyType; -+typedef void *valueType; -+ -+typedef struct nodeStructure skiplist_node; -+ -+struct nodeStructure { -+ int level; /* Levels in this structure */ -+ keyType key; -+ valueType value; -+ skiplist_node *next[8]; -+ skiplist_node *prev[8]; -+}; -+ -+typedef struct listStructure { -+ int entries; -+ int level; /* Maximum level of the list -+ (1 more than the number of levels in the list) */ -+ skiplist_node *header; /* pointer to header */ -+} skiplist; -+ -+void skiplist_init(skiplist_node *slnode); -+skiplist *new_skiplist(skiplist_node *slnode); -+void free_skiplist(skiplist *l); -+void skiplist_node_init(skiplist_node *node); -+void skiplist_insert(skiplist *l, skiplist_node *node, keyType key, valueType value, unsigned int randseed); -+void skiplist_delete(skiplist *l, skiplist_node *node); -+ -+static inline bool skiplist_node_empty(skiplist_node *node) { -+ return (!node->next[0]); -+} -+#endif /* _LINUX_SKIP_LISTS_H */ -diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h -index 22627f80063e..17077cd6fc40 100644 ---- a/include/uapi/linux/sched.h -+++ b/include/uapi/linux/sched.h -@@ -37,9 +37,16 @@ - #define SCHED_FIFO 1 - #define SCHED_RR 2 - #define SCHED_BATCH 3 --/* SCHED_ISO: reserved but not implemented yet */ -+/* SCHED_ISO: Implemented on MuQSS only */ - #define SCHED_IDLE 5 -+#ifdef CONFIG_SCHED_MUQSS -+#define SCHED_ISO 4 -+#define SCHED_IDLEPRIO SCHED_IDLE -+#define SCHED_MAX (SCHED_IDLEPRIO) -+#define SCHED_RANGE(policy) ((policy) <= SCHED_MAX) -+#else /* CONFIG_SCHED_MUQSS */ - #define SCHED_DEADLINE 6 -+#endif /* CONFIG_SCHED_MUQSS */ - - /* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */ - #define SCHED_RESET_ON_FORK 0x40000000 -diff --git a/init/Kconfig b/init/Kconfig -index 1e234e2f1cba..adb61defd6c3 100644 ---- a/init/Kconfig -+++ b/init/Kconfig -@@ -45,6 +45,18 @@ config THREAD_INFO_IN_TASK - - menu "General setup" - -+config SCHED_MUQSS -+ bool "MuQSS cpu scheduler" -+ select HIGH_RES_TIMERS -+ ---help--- -+ The Multiple Queue Skiplist Scheduler for excellent interactivity and -+ responsiveness on the desktop and highly scalable deterministic -+ low latency on any hardware. -+ -+ Say Y here. -+ default y -+ -+ - config BROKEN - bool - -@@ -647,6 +659,7 @@ config NUMA_BALANCING - depends on ARCH_SUPPORTS_NUMA_BALANCING - depends on !ARCH_WANT_NUMA_VARIABLE_LOCALITY - depends on SMP && NUMA && MIGRATION -+ depends on !SCHED_MUQSS - help - This option adds support for automatic NUMA aware memory/task placement. - The mechanism is quite primitive and is based on migrating memory when -@@ -754,9 +767,13 @@ menuconfig CGROUP_SCHED - help - This feature lets CPU scheduler recognize task groups and control CPU - bandwidth allocation to such task groups. It uses cgroups to group -- tasks. -+ tasks. In combination with MuQSS this is purely a STUB to create the -+ files associated with the CPU controller cgroup but most of the -+ controls do nothing. This is useful for working in environments and -+ with applications that will only work if this control group is -+ present. - --if CGROUP_SCHED -+if CGROUP_SCHED && !SCHED_MUQSS - config FAIR_GROUP_SCHED - bool "Group scheduling for SCHED_OTHER" - depends on CGROUP_SCHED -@@ -863,6 +880,7 @@ config CGROUP_DEVICE - - config CGROUP_CPUACCT - bool "Simple CPU accounting controller" -+ depends on !SCHED_MUQSS - help - Provides a simple controller for monitoring the - total CPU consumed by the tasks in a cgroup. -@@ -981,6 +999,7 @@ config CHECKPOINT_RESTORE - - config SCHED_AUTOGROUP - bool "Automatic process group scheduling" -+ depends on !SCHED_MUQSS - select CGROUPS - select CGROUP_SCHED - select FAIR_GROUP_SCHED -diff --git a/init/init_task.c b/init/init_task.c -index 5aebe3be4d7c..2b576d3b2333 100644 ---- a/init/init_task.c -+++ b/init/init_task.c -@@ -67,9 +67,17 @@ struct task_struct init_task - .stack = init_stack, - .usage = ATOMIC_INIT(2), - .flags = PF_KTHREAD, -+#ifdef CONFIG_SCHED_MUQSS -+ .prio = NORMAL_PRIO, -+ .static_prio = MAX_PRIO-20, -+ .normal_prio = NORMAL_PRIO, -+ .deadline = 0, -+ .time_slice = 1000000, -+#else - .prio = MAX_PRIO - 20, - .static_prio = MAX_PRIO - 20, - .normal_prio = MAX_PRIO - 20, -+#endif - .policy = SCHED_NORMAL, - .cpus_allowed = CPU_MASK_ALL, - .nr_cpus_allowed= NR_CPUS, -@@ -78,6 +86,7 @@ struct task_struct init_task - .restart_block = { - .fn = do_no_restart_syscall, - }, -+#ifndef CONFIG_SCHED_MUQSS - .se = { - .group_node = LIST_HEAD_INIT(init_task.se.group_node), - }, -@@ -85,6 +94,7 @@ struct task_struct init_task - .run_list = LIST_HEAD_INIT(init_task.rt.run_list), - .time_slice = RR_TIMESLICE, - }, -+#endif - .tasks = LIST_HEAD_INIT(init_task.tasks), - #ifdef CONFIG_SMP - .pushable_tasks = PLIST_NODE_INIT(init_task.pushable_tasks, MAX_PRIO), -diff --git a/init/main.c b/init/main.c -index 18f8f0140fa0..fe2d2d87e887 100644 ---- a/init/main.c -+++ b/init/main.c -@@ -1079,6 +1079,8 @@ static int __ref kernel_init(void *unused) - - rcu_end_inkernel_boot(); - -+ print_scheduler_version(); -+ - if (ramdisk_execute_command) { - ret = run_init_process(ramdisk_execute_command); - if (!ret) -diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz -index 2a202a846757..1806fcac8f14 100644 ---- a/kernel/Kconfig.hz -+++ b/kernel/Kconfig.hz -@@ -4,7 +4,8 @@ - - choice - prompt "Timer frequency" -- default HZ_250 -+ default HZ_100 if SCHED_MUQSS -+ default HZ_250_NODEF if !SCHED_MUQSS - help - Allows the configuration of the timer frequency. It is customary - to have the timer interrupt run at 1000 Hz but 100 Hz may be more -@@ -19,11 +20,18 @@ choice - config HZ_100 - bool "100 HZ" - help -+ 100 Hz is a suitable choice in combination with MuQSS which does -+ not rely on ticks for rescheduling interrupts, and is not Hz limited -+ for timeouts and sleeps from both the kernel and userspace. -+ This allows us to benefit from the lower overhead and higher -+ throughput of fewer timer ticks. -+ -+ Non-MuQSS kernels: - 100 Hz is a typical choice for servers, SMP and NUMA systems - with lots of processors that may show reduced performance if - too many timer interrupts are occurring. - -- config HZ_250 -+ config HZ_250_NODEF - bool "250 HZ" - help - 250 Hz is a good compromise choice allowing server performance -@@ -31,7 +39,10 @@ choice - on SMP and NUMA systems. If you are going to be using NTSC video - or multimedia, selected 300Hz instead. - -- config HZ_300 -+ 250 Hz is the default choice for the mainline scheduler but not -+ advantageous in combination with MuQSS. -+ -+ config HZ_300_NODEF - bool "300 HZ" - help - 300 Hz is a good compromise choice allowing server performance -@@ -39,7 +50,7 @@ choice - on SMP and NUMA systems and exactly dividing by both PAL and - NTSC frame rates for video and multimedia work. - -- config HZ_1000 -+ config HZ_1000_NODEF - bool "1000 HZ" - help - 1000 Hz is the preferred choice for desktop systems and other -@@ -50,9 +61,9 @@ endchoice - config HZ - int - default 100 if HZ_100 -- default 250 if HZ_250 -- default 300 if HZ_300 -- default 1000 if HZ_1000 -+ default 250 if HZ_250_NODEF -+ default 300 if HZ_300_NODEF -+ default 1000 if HZ_1000_NODEF - - config SCHED_HRTICK - def_bool HIGH_RES_TIMERS -diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt -index cd1655122ec0..9cf10230d5fb 100644 ---- a/kernel/Kconfig.preempt -+++ b/kernel/Kconfig.preempt -@@ -1,7 +1,7 @@ - - choice - prompt "Preemption Model" -- default PREEMPT_NONE -+ default PREEMPT - - config PREEMPT_NONE - bool "No Forced Preemption (Server)" -@@ -17,7 +17,7 @@ config PREEMPT_NONE - latencies. - - config PREEMPT_VOLUNTARY -- bool "Voluntary Kernel Preemption (Desktop)" -+ bool "Voluntary Kernel Preemption (Nothing)" - depends on !ARCH_NO_PREEMPT - help - This option reduces the latency of the kernel by adding more -@@ -32,7 +32,8 @@ config PREEMPT_VOLUNTARY - applications to run more 'smoothly' even when the system is - under load. - -- Select this if you are building a kernel for a desktop system. -+ Select this for no system in particular (choose Preemptible -+ instead on a desktop if you know what's good for you). - - config PREEMPT - bool "Preemptible Kernel (Low-Latency Desktop)" -@@ -57,4 +58,4 @@ config PREEMPT - endchoice - - config PREEMPT_COUNT -- bool -\ No newline at end of file -+ bool -diff --git a/kernel/Makefile b/kernel/Makefile -index 7a63d567fdb5..e9c738432f19 100644 ---- a/kernel/Makefile -+++ b/kernel/Makefile -@@ -10,7 +10,7 @@ obj-y = fork.o exec_domain.o panic.o \ - extable.o params.o \ - kthread.o sys_ni.o nsproxy.o \ - notifier.o ksysfs.o cred.o reboot.o \ -- async.o range.o smpboot.o ucount.o -+ async.o range.o smpboot.o ucount.o skip_list.o - - obj-$(CONFIG_MODULES) += kmod.o - obj-$(CONFIG_MULTIUSER) += groups.o -diff --git a/kernel/delayacct.c b/kernel/delayacct.c -index ca8ac2824f0b..ae824da28e4b 100644 ---- a/kernel/delayacct.c -+++ b/kernel/delayacct.c -@@ -115,7 +115,7 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) - */ - t1 = tsk->sched_info.pcount; - t2 = tsk->sched_info.run_delay; -- t3 = tsk->se.sum_exec_runtime; -+ t3 = tsk_seruntime(tsk); - - d->cpu_count += t1; - -diff --git a/kernel/exit.c b/kernel/exit.c -index 0e21e6d21f35..81d3e2a398d3 100644 ---- a/kernel/exit.c -+++ b/kernel/exit.c -@@ -130,7 +130,7 @@ static void __exit_signal(struct task_struct *tsk) - sig->curr_target = next_thread(tsk); - } - -- add_device_randomness((const void*) &tsk->se.sum_exec_runtime, -+ add_device_randomness((const void*) &tsk_seruntime(tsk), - sizeof(unsigned long long)); - - /* -@@ -151,7 +151,7 @@ static void __exit_signal(struct task_struct *tsk) - sig->inblock += task_io_get_inblock(tsk); - sig->oublock += task_io_get_oublock(tsk); - task_io_accounting_add(&sig->ioac, &tsk->ioac); -- sig->sum_sched_runtime += tsk->se.sum_exec_runtime; -+ sig->sum_sched_runtime += tsk_seruntime(tsk); - sig->nr_threads--; - __unhash_process(tsk, group_dead); - write_sequnlock(&sig->stats_lock); -diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig -index 5f3e2baefca9..de3e5740679b 100644 ---- a/kernel/irq/Kconfig -+++ b/kernel/irq/Kconfig -@@ -107,6 +107,23 @@ config GENERIC_IRQ_RESERVATION_MODE - config IRQ_FORCED_THREADING - bool - -+config FORCE_IRQ_THREADING -+ bool "Make IRQ threading compulsory" -+ depends on IRQ_FORCED_THREADING -+ default n -+ ---help--- -+ -+ Make IRQ threading mandatory for any IRQ handlers that support it -+ instead of being optional and requiring the threadirqs kernel -+ parameter. Instead they can be optionally disabled with the -+ nothreadirqs kernel parameter. -+ -+ Enabling this may make some architectures not boot with runqueue -+ sharing and MuQSS. -+ -+ Enable if you are building for a desktop or low latency system, -+ otherwise say N. -+ - config SPARSE_IRQ - bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ - ---help--- -diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c -index fb86146037a7..b322b1a0caa0 100644 ---- a/kernel/irq/manage.c -+++ b/kernel/irq/manage.c -@@ -23,9 +23,20 @@ - #include "internals.h" - - #ifdef CONFIG_IRQ_FORCED_THREADING -+#ifdef CONFIG_FORCE_IRQ_THREADING -+__read_mostly bool force_irqthreads = true; -+#else - __read_mostly bool force_irqthreads; -+#endif - EXPORT_SYMBOL_GPL(force_irqthreads); - -+static int __init setup_noforced_irqthreads(char *arg) -+{ -+ force_irqthreads = false; -+ return 0; -+} -+early_param("nothreadirqs", setup_noforced_irqthreads); -+ - static int __init setup_forced_irqthreads(char *arg) - { - force_irqthreads = true; -diff --git a/kernel/kthread.c b/kernel/kthread.c -index 087d18d771b5..fdddd187774a 100644 ---- a/kernel/kthread.c -+++ b/kernel/kthread.c -@@ -424,6 +424,34 @@ void kthread_bind(struct task_struct *p, unsigned int cpu) - } - EXPORT_SYMBOL(kthread_bind); - -+#if defined(CONFIG_SCHED_MUQSS) && defined(CONFIG_SMP) -+extern void __do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask); -+ -+/* -+ * new_kthread_bind is a special variant of __kthread_bind_mask. -+ * For new threads to work on muqss we want to call do_set_cpus_allowed -+ * without the task_cpu being set and the task rescheduled until they're -+ * rescheduled on their own so we call __do_set_cpus_allowed directly which -+ * only changes the cpumask. This is particularly important for smpboot threads -+ * to work. -+ */ -+static void new_kthread_bind(struct task_struct *p, unsigned int cpu) -+{ -+ unsigned long flags; -+ -+ if (WARN_ON(!wait_task_inactive(p, TASK_UNINTERRUPTIBLE))) -+ return; -+ -+ /* It's safe because the task is inactive. */ -+ raw_spin_lock_irqsave(&p->pi_lock, flags); -+ __do_set_cpus_allowed(p, cpumask_of(cpu)); -+ p->flags |= PF_NO_SETAFFINITY; -+ raw_spin_unlock_irqrestore(&p->pi_lock, flags); -+} -+#else -+#define new_kthread_bind(p, cpu) kthread_bind(p, cpu) -+#endif -+ - /** - * kthread_create_on_cpu - Create a cpu bound kthread - * @threadfn: the function to run until signal_pending(current). -@@ -445,7 +473,7 @@ struct task_struct *kthread_create_on_cpu(int (*threadfn)(void *data), - cpu); - if (IS_ERR(p)) - return p; -- kthread_bind(p, cpu); -+ new_kthread_bind(p, cpu); - /* CPU hotplug need to bind once again when unparking the thread. */ - set_bit(KTHREAD_IS_PER_CPU, &to_kthread(p)->flags); - to_kthread(p)->cpu = cpu; -diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c -index 5bc349805e03..aa59b12d4c05 100644 ---- a/kernel/livepatch/transition.c -+++ b/kernel/livepatch/transition.c -@@ -290,6 +290,12 @@ static int klp_check_stack(struct task_struct *task, char *err_buf) - return 0; - } - -+#ifdef CONFIG_SCHED_MUQSS -+typedef unsigned long rq_flags_t; -+#else -+typedef struct rq_flags rq_flag_t; -+#endif -+ - /* - * Try to safely switch a task to the target patch state. If it's currently - * running, or it's sleeping on a to-be-patched or to-be-unpatched function, or -@@ -298,7 +304,7 @@ static int klp_check_stack(struct task_struct *task, char *err_buf) - static bool klp_try_switch_task(struct task_struct *task) - { - struct rq *rq; -- struct rq_flags flags; -+ rq_flags_t flags; - int ret; - bool success = false; - char err_buf[STACK_ERR_BUF_SIZE]; -diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig -index 9210379c0353..2dd2f03843cc 100644 ---- a/kernel/rcu/Kconfig -+++ b/kernel/rcu/Kconfig -@@ -93,7 +93,7 @@ config CONTEXT_TRACKING - config CONTEXT_TRACKING_FORCE - bool "Force context tracking" - depends on CONTEXT_TRACKING -- default y if !NO_HZ_FULL -+ default y if !NO_HZ_FULL && !SCHED_MUQSS - help - The major pre-requirement for full dynticks to work is to - support the context tracking subsystem. But there are also -diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile -index 7fe183404c38..05c8211d7a76 100644 ---- a/kernel/sched/Makefile -+++ b/kernel/sched/Makefile -@@ -16,6 +16,17 @@ ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y) - CFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointer - endif - -+ifdef CONFIG_SCHED_MUQSS -+obj-y += MuQSS.o clock.o cputime.o -+obj-y += idle.o -+obj-y += wait.o wait_bit.o swait.o completion.o -+ -+obj-$(CONFIG_SMP) += topology.o -+obj-$(CONFIG_SCHEDSTATS) += stats.o -+obj-$(CONFIG_CPU_FREQ) += cpufreq.o -+obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o -+obj-$(CONFIG_CPU_ISOLATION) += isolation.o -+else - obj-y += core.o loadavg.o clock.o cputime.o - obj-y += idle.o fair.o rt.o deadline.o - obj-y += wait.o wait_bit.o swait.o completion.o -@@ -29,3 +40,4 @@ obj-$(CONFIG_CPU_FREQ) += cpufreq.o - obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o - obj-$(CONFIG_MEMBARRIER) += membarrier.o - obj-$(CONFIG_CPU_ISOLATION) += isolation.o -+endif -diff --git a/kernel/sched/MuQSS.c b/kernel/sched/MuQSS.c -new file mode 100644 -index 000000000000..02e9eebab3d9 ---- /dev/null -+++ b/kernel/sched/MuQSS.c -@@ -0,0 +1,7370 @@ -+// SPDX-License-Identifier: GPL-2.0 -+/* -+ * kernel/sched/MuQSS.c, was kernel/sched.c -+ * -+ * Kernel scheduler and related syscalls -+ * -+ * Copyright (C) 1991-2002 Linus Torvalds -+ * -+ * 1996-12-23 Modified by Dave Grothe to fix bugs in semaphores and -+ * make semaphores SMP safe -+ * 1998-11-19 Implemented schedule_timeout() and related stuff -+ * by Andrea Arcangeli -+ * 2002-01-04 New ultra-scalable O(1) scheduler by Ingo Molnar: -+ * hybrid priority-list and round-robin design with -+ * an array-switch method of distributing timeslices -+ * and per-CPU runqueues. Cleanups and useful suggestions -+ * by Davide Libenzi, preemptible kernel bits by Robert Love. -+ * 2003-09-03 Interactivity tuning by Con Kolivas. -+ * 2004-04-02 Scheduler domains code by Nick Piggin -+ * 2007-04-15 Work begun on replacing all interactivity tuning with a -+ * fair scheduling design by Con Kolivas. -+ * 2007-05-05 Load balancing (smp-nice) and other improvements -+ * by Peter Williams -+ * 2007-05-06 Interactivity improvements to CFS by Mike Galbraith -+ * 2007-07-01 Group scheduling enhancements by Srivatsa Vaddagiri -+ * 2007-11-29 RT balancing improvements by Steven Rostedt, Gregory Haskins, -+ * Thomas Gleixner, Mike Kravetz -+ * 2009-08-13 Brainfuck deadline scheduling policy by Con Kolivas deletes -+ * a whole lot of those previous things. -+ * 2016-10-01 Multiple Queue Skiplist Scheduler scalable evolution of BFS -+ * scheduler by Con Kolivas. -+ */ -+ -+#include -+#include -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+ -+#include "../workqueue_internal.h" -+#include "../smpboot.h" -+ -+#define CREATE_TRACE_POINTS -+#include -+ -+#include "MuQSS.h" -+ -+#define rt_prio(prio) unlikely((prio) < MAX_RT_PRIO) -+#define rt_task(p) rt_prio((p)->prio) -+#define batch_task(p) (unlikely((p)->policy == SCHED_BATCH)) -+#define is_rt_policy(policy) ((policy) == SCHED_FIFO || \ -+ (policy) == SCHED_RR) -+#define has_rt_policy(p) unlikely(is_rt_policy((p)->policy)) -+ -+#define is_idle_policy(policy) ((policy) == SCHED_IDLEPRIO) -+#define idleprio_task(p) unlikely(is_idle_policy((p)->policy)) -+#define task_running_idle(p) unlikely((p)->prio == IDLE_PRIO) -+ -+#define is_iso_policy(policy) ((policy) == SCHED_ISO) -+#define iso_task(p) unlikely(is_iso_policy((p)->policy)) -+#define task_running_iso(p) unlikely((p)->prio == ISO_PRIO) -+ -+#define rq_idle(rq) ((rq)->rq_prio == PRIO_LIMIT) -+ -+#define ISO_PERIOD (5 * HZ) -+ -+#define STOP_PRIO (MAX_RT_PRIO - 1) -+ -+/* -+ * Some helpers for converting to/from various scales. Use shifts to get -+ * approximate multiples of ten for less overhead. -+ */ -+#define APPROX_NS_PS (1073741824) /* Approximate ns per second */ -+#define JIFFIES_TO_NS(TIME) ((TIME) * (APPROX_NS_PS / HZ)) -+#define JIFFY_NS (APPROX_NS_PS / HZ) -+#define JIFFY_US (1048576 / HZ) -+#define NS_TO_JIFFIES(TIME) ((TIME) / JIFFY_NS) -+#define HALF_JIFFY_NS (APPROX_NS_PS / HZ / 2) -+#define HALF_JIFFY_US (1048576 / HZ / 2) -+#define MS_TO_NS(TIME) ((TIME) << 20) -+#define MS_TO_US(TIME) ((TIME) << 10) -+#define NS_TO_MS(TIME) ((TIME) >> 20) -+#define NS_TO_US(TIME) ((TIME) >> 10) -+#define US_TO_NS(TIME) ((TIME) << 10) -+#define TICK_APPROX_NS ((APPROX_NS_PS+HZ/2)/HZ) -+ -+#define RESCHED_US (100) /* Reschedule if less than this many μs left */ -+ -+void print_scheduler_version(void) -+{ -+ printk(KERN_INFO "MuQSS CPU scheduler v0.180 by Con Kolivas.\n"); -+} -+ -+#define RQSHARE_NONE 0 -+#define RQSHARE_SMT 1 -+#define RQSHARE_MC 2 -+#define RQSHARE_SMP 3 -+ -+/* -+ * This determines what level of runqueue sharing will be done and is -+ * configurable at boot time with the bootparam rqshare = -+ */ -+static int rqshare __read_mostly = CONFIG_SHARERQ; /* Default RQSHARE_MC */ -+ -+static int __init set_rqshare(char *str) -+{ -+ if (!strncmp(str, "none", 4)) { -+ rqshare = RQSHARE_NONE; -+ return 0; -+ } -+ if (!strncmp(str, "smt", 3)) { -+ rqshare = RQSHARE_SMT; -+ return 0; -+ } -+ if (!strncmp(str, "mc", 2)) { -+ rqshare = RQSHARE_MC; -+ return 0; -+ } -+ if (!strncmp(str, "smp", 2)) { -+ rqshare = RQSHARE_SMP; -+ return 0; -+ } -+ return 1; -+} -+__setup("rqshare=", set_rqshare); -+ -+/* -+ * This is the time all tasks within the same priority round robin. -+ * Value is in ms and set to a minimum of 6ms. -+ * Tunable via /proc interface. -+ */ -+int rr_interval __read_mostly = 6; -+ -+/* -+ * Tunable to choose whether to prioritise latency or throughput, simple -+ * binary yes or no -+ */ -+int sched_interactive __read_mostly = 1; -+ -+/* -+ * sched_iso_cpu - sysctl which determines the cpu percentage SCHED_ISO tasks -+ * are allowed to run five seconds as real time tasks. This is the total over -+ * all online cpus. -+ */ -+int sched_iso_cpu __read_mostly = 70; -+ -+/* -+ * sched_yield_type - Choose what sort of yield sched_yield will perform. -+ * 0: No yield. -+ * 1: Yield only to better priority/deadline tasks. (default) -+ * 2: Expire timeslice and recalculate deadline. -+ */ -+int sched_yield_type __read_mostly = 1; -+ -+/* -+ * The relative length of deadline for each priority(nice) level. -+ */ -+static int prio_ratios[NICE_WIDTH] __read_mostly; -+ -+ -+/* -+ * The quota handed out to tasks of all priority levels when refilling their -+ * time_slice. -+ */ -+static inline int timeslice(void) -+{ -+ return MS_TO_US(rr_interval); -+} -+ -+DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); -+ -+#ifdef CONFIG_SMP -+/* -+ * Total number of runqueues. Equals number of CPUs when there is no runqueue -+ * sharing but is usually less with SMT/MC sharing of runqueues. -+ */ -+static int total_runqueues __read_mostly = 1; -+ -+static cpumask_t cpu_idle_map ____cacheline_aligned_in_smp; -+ -+struct rq *cpu_rq(int cpu) -+{ -+ return &per_cpu(runqueues, (cpu)); -+} -+#define cpu_curr(cpu) (cpu_rq(cpu)->curr) -+ -+/* -+ * For asym packing, by default the lower numbered cpu has higher priority. -+ */ -+int __weak arch_asym_cpu_priority(int cpu) -+{ -+ return -cpu; -+} -+ -+int __weak arch_sd_sibling_asym_packing(void) -+{ -+ return 0*SD_ASYM_PACKING; -+} -+#else -+struct rq *uprq; -+#endif /* CONFIG_SMP */ -+ -+#include "stats.h" -+ -+/* -+ * All common locking functions performed on rq->lock. rq->clock is local to -+ * the CPU accessing it so it can be modified just with interrupts disabled -+ * when we're not updating niffies. -+ * Looking up task_rq must be done under rq->lock to be safe. -+ */ -+ -+/* -+ * RQ-clock updating methods: -+ */ -+ -+#ifdef HAVE_SCHED_AVG_IRQ -+static void update_irq_load_avg(struct rq *rq, long delta); -+#else -+static inline void update_irq_load_avg(struct rq *rq, long delta) {} -+#endif -+ -+static void update_rq_clock_task(struct rq *rq, s64 delta) -+{ -+/* -+ * In theory, the compile should just see 0 here, and optimize out the call -+ * to sched_rt_avg_update. But I don't trust it... -+ */ -+#if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING) -+ s64 steal = 0, irq_delta = 0; -+#endif -+#ifdef CONFIG_IRQ_TIME_ACCOUNTING -+ irq_delta = irq_time_read(cpu_of(rq)) - rq->prev_irq_time; -+ -+ /* -+ * Since irq_time is only updated on {soft,}irq_exit, we might run into -+ * this case when a previous update_rq_clock() happened inside a -+ * {soft,}irq region. -+ * -+ * When this happens, we stop ->clock_task and only update the -+ * prev_irq_time stamp to account for the part that fit, so that a next -+ * update will consume the rest. This ensures ->clock_task is -+ * monotonic. -+ * -+ * It does however cause some slight miss-attribution of {soft,}irq -+ * time, a more accurate solution would be to update the irq_time using -+ * the current rq->clock timestamp, except that would require using -+ * atomic ops. -+ */ -+ if (irq_delta > delta) -+ irq_delta = delta; -+ -+ rq->prev_irq_time += irq_delta; -+ delta -= irq_delta; -+#endif -+#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING -+ if (static_key_false((¶virt_steal_rq_enabled))) { -+ steal = paravirt_steal_clock(cpu_of(rq)); -+ steal -= rq->prev_steal_time_rq; -+ -+ if (unlikely(steal > delta)) -+ steal = delta; -+ -+ rq->prev_steal_time_rq += steal; -+ delta -= steal; -+ } -+#endif -+ rq->clock_task += delta; -+ -+#ifdef HAVE_SCHED_AVG_IRQ -+ if (irq_delta + steal) -+ update_irq_load_avg(rq, irq_delta + steal); -+#endif -+} -+ -+static inline void update_rq_clock(struct rq *rq) -+{ -+ s64 delta = sched_clock_cpu(cpu_of(rq)) - rq->clock; -+ -+ if (unlikely(delta < 0)) -+ return; -+ rq->clock += delta; -+ update_rq_clock_task(rq, delta); -+} -+ -+/* -+ * Niffies are a globally increasing nanosecond counter. They're only used by -+ * update_load_avg and time_slice_expired, however deadlines are based on them -+ * across CPUs. Update them whenever we will call one of those functions, and -+ * synchronise them across CPUs whenever we hold both runqueue locks. -+ */ -+static inline void update_clocks(struct rq *rq) -+{ -+ s64 ndiff, minndiff; -+ long jdiff; -+ -+ update_rq_clock(rq); -+ ndiff = rq->clock - rq->old_clock; -+ rq->old_clock = rq->clock; -+ jdiff = jiffies - rq->last_jiffy; -+ -+ /* Subtract any niffies added by balancing with other rqs */ -+ ndiff -= rq->niffies - rq->last_niffy; -+ minndiff = JIFFIES_TO_NS(jdiff) - rq->niffies + rq->last_jiffy_niffies; -+ if (minndiff < 0) -+ minndiff = 0; -+ ndiff = max(ndiff, minndiff); -+ rq->niffies += ndiff; -+ rq->last_niffy = rq->niffies; -+ if (jdiff) { -+ rq->last_jiffy += jdiff; -+ rq->last_jiffy_niffies = rq->niffies; -+ } -+} -+ -+static inline int task_on_rq_queued(struct task_struct *p) -+{ -+ return p->on_rq == TASK_ON_RQ_QUEUED; -+} -+ -+static inline int task_on_rq_migrating(struct task_struct *p) -+{ -+ return p->on_rq == TASK_ON_RQ_MIGRATING; -+} -+ -+/* -+ * Any time we have two runqueues locked we use that as an opportunity to -+ * synchronise niffies to the highest value as idle ticks may have artificially -+ * kept niffies low on one CPU and the truth can only be later. -+ */ -+static inline void synchronise_niffies(struct rq *rq1, struct rq *rq2) -+{ -+ if (rq1->niffies > rq2->niffies) -+ rq2->niffies = rq1->niffies; -+ else -+ rq1->niffies = rq2->niffies; -+} -+ -+/* -+ * double_rq_lock - safely lock two runqueues -+ * -+ * Note this does not disable interrupts like task_rq_lock, -+ * you need to do so manually before calling. -+ */ -+ -+/* For when we know rq1 != rq2 */ -+static inline void __double_rq_lock(struct rq *rq1, struct rq *rq2) -+ __acquires(rq1->lock) -+ __acquires(rq2->lock) -+{ -+ if (rq1 < rq2) { -+ raw_spin_lock(rq1->lock); -+ raw_spin_lock_nested(rq2->lock, SINGLE_DEPTH_NESTING); -+ } else { -+ raw_spin_lock(rq2->lock); -+ raw_spin_lock_nested(rq1->lock, SINGLE_DEPTH_NESTING); -+ } -+} -+ -+static inline void double_rq_lock(struct rq *rq1, struct rq *rq2) -+ __acquires(rq1->lock) -+ __acquires(rq2->lock) -+{ -+ BUG_ON(!irqs_disabled()); -+ if (rq1->lock == rq2->lock) { -+ raw_spin_lock(rq1->lock); -+ __acquire(rq2->lock); /* Fake it out ;) */ -+ } else -+ __double_rq_lock(rq1, rq2); -+ synchronise_niffies(rq1, rq2); -+} -+ -+/* -+ * double_rq_unlock - safely unlock two runqueues -+ * -+ * Note this does not restore interrupts like task_rq_unlock, -+ * you need to do so manually after calling. -+ */ -+static inline void double_rq_unlock(struct rq *rq1, struct rq *rq2) -+ __releases(rq1->lock) -+ __releases(rq2->lock) -+{ -+ raw_spin_unlock(rq1->lock); -+ if (rq1->lock != rq2->lock) -+ raw_spin_unlock(rq2->lock); -+ else -+ __release(rq2->lock); -+} -+ -+static inline void lock_all_rqs(void) -+{ -+ int cpu; -+ -+ preempt_disable(); -+ for_each_possible_cpu(cpu) { -+ struct rq *rq = cpu_rq(cpu); -+ -+ do_raw_spin_lock(rq->lock); -+ } -+} -+ -+static inline void unlock_all_rqs(void) -+{ -+ int cpu; -+ -+ for_each_possible_cpu(cpu) { -+ struct rq *rq = cpu_rq(cpu); -+ -+ do_raw_spin_unlock(rq->lock); -+ } -+ preempt_enable(); -+} -+ -+/* Specially nest trylock an rq */ -+static inline bool trylock_rq(struct rq *this_rq, struct rq *rq) -+{ -+ if (unlikely(!do_raw_spin_trylock(rq->lock))) -+ return false; -+ spin_acquire(rq->lock.dep_map, SINGLE_DEPTH_NESTING, 1, _RET_IP_); -+ synchronise_niffies(this_rq, rq); -+ return true; -+} -+ -+/* Unlock a specially nested trylocked rq */ -+static inline void unlock_rq(struct rq *rq) -+{ -+ spin_release(rq->lock.dep_map, 1, _RET_IP_); -+ do_raw_spin_unlock(rq->lock); -+} -+ -+/* -+ * cmpxchg based fetch_or, macro so it works for different integer types -+ */ -+#define fetch_or(ptr, mask) \ -+ ({ \ -+ typeof(ptr) _ptr = (ptr); \ -+ typeof(mask) _mask = (mask); \ -+ typeof(*_ptr) _old, _val = *_ptr; \ -+ \ -+ for (;;) { \ -+ _old = cmpxchg(_ptr, _val, _val | _mask); \ -+ if (_old == _val) \ -+ break; \ -+ _val = _old; \ -+ } \ -+ _old; \ -+}) -+ -+#if defined(CONFIG_SMP) && defined(TIF_POLLING_NRFLAG) -+/* -+ * Atomically set TIF_NEED_RESCHED and test for TIF_POLLING_NRFLAG, -+ * this avoids any races wrt polling state changes and thereby avoids -+ * spurious IPIs. -+ */ -+static bool set_nr_and_not_polling(struct task_struct *p) -+{ -+ struct thread_info *ti = task_thread_info(p); -+ return !(fetch_or(&ti->flags, _TIF_NEED_RESCHED) & _TIF_POLLING_NRFLAG); -+} -+ -+/* -+ * Atomically set TIF_NEED_RESCHED if TIF_POLLING_NRFLAG is set. -+ * -+ * If this returns true, then the idle task promises to call -+ * sched_ttwu_pending() and reschedule soon. -+ */ -+static bool set_nr_if_polling(struct task_struct *p) -+{ -+ struct thread_info *ti = task_thread_info(p); -+ typeof(ti->flags) old, val = READ_ONCE(ti->flags); -+ -+ for (;;) { -+ if (!(val & _TIF_POLLING_NRFLAG)) -+ return false; -+ if (val & _TIF_NEED_RESCHED) -+ return true; -+ old = cmpxchg(&ti->flags, val, val | _TIF_NEED_RESCHED); -+ if (old == val) -+ break; -+ val = old; -+ } -+ return true; -+} -+ -+#else -+static bool set_nr_and_not_polling(struct task_struct *p) -+{ -+ set_tsk_need_resched(p); -+ return true; -+} -+ -+#ifdef CONFIG_SMP -+static bool set_nr_if_polling(struct task_struct *p) -+{ -+ return false; -+} -+#endif -+#endif -+ -+void wake_q_add(struct wake_q_head *head, struct task_struct *task) -+{ -+ struct wake_q_node *node = &task->wake_q; -+ -+ /* -+ * Atomically grab the task, if ->wake_q is !nil already it means -+ * its already queued (either by us or someone else) and will get the -+ * wakeup due to that. -+ * -+ * This cmpxchg() executes a full barrier, which pairs with the full -+ * barrier executed by the wakeup in wake_up_q(). -+ */ -+ if (cmpxchg(&node->next, NULL, WAKE_Q_TAIL)) -+ return; -+ -+ get_task_struct(task); -+ -+ /* -+ * The head is context local, there can be no concurrency. -+ */ -+ *head->lastp = node; -+ head->lastp = &node->next; -+} -+ -+void wake_up_q(struct wake_q_head *head) -+{ -+ struct wake_q_node *node = head->first; -+ -+ while (node != WAKE_Q_TAIL) { -+ struct task_struct *task; -+ -+ task = container_of(node, struct task_struct, wake_q); -+ BUG_ON(!task); -+ /* Task can safely be re-inserted now */ -+ node = node->next; -+ task->wake_q.next = NULL; -+ -+ /* -+ * wake_up_process() executes a full barrier, which pairs with -+ * the queueing in wake_q_add() so as not to miss wakeups. -+ */ -+ wake_up_process(task); -+ put_task_struct(task); -+ } -+} -+ -+static inline void smp_sched_reschedule(int cpu) -+{ -+ if (likely(cpu_online(cpu))) -+ smp_send_reschedule(cpu); -+} -+ -+/* -+ * resched_task - mark a task 'to be rescheduled now'. -+ * -+ * On UP this means the setting of the need_resched flag, on SMP it -+ * might also involve a cross-CPU call to trigger the scheduler on -+ * the target CPU. -+ */ -+void resched_task(struct task_struct *p) -+{ -+ int cpu; -+#ifdef CONFIG_LOCKDEP -+ /* Kernel threads call this when creating workqueues while still -+ * inactive from __kthread_bind_mask, holding only the pi_lock */ -+ if (!(p->flags & PF_KTHREAD)) { -+ struct rq *rq = task_rq(p); -+ -+ lockdep_assert_held(rq->lock); -+ } -+#endif -+ if (test_tsk_need_resched(p)) -+ return; -+ -+ cpu = task_cpu(p); -+ if (cpu == smp_processor_id()) { -+ set_tsk_need_resched(p); -+ set_preempt_need_resched(); -+ return; -+ } -+ -+ if (set_nr_and_not_polling(p)) -+ smp_sched_reschedule(cpu); -+ else -+ trace_sched_wake_idle_without_ipi(cpu); -+} -+ -+/* -+ * A task that is not running or queued will not have a node set. -+ * A task that is queued but not running will have a node set. -+ * A task that is currently running will have ->on_cpu set but no node set. -+ */ -+static inline bool task_queued(struct task_struct *p) -+{ -+ return !skiplist_node_empty(&p->node); -+} -+ -+static void enqueue_task(struct rq *rq, struct task_struct *p, int flags); -+static inline void resched_if_idle(struct rq *rq); -+ -+/* Dodgy workaround till we figure out where the softirqs are going */ -+static inline void do_pending_softirq(struct rq *rq, struct task_struct *next) -+{ -+ if (unlikely(next == rq->idle && local_softirq_pending() && !in_interrupt())) -+ do_softirq_own_stack(); -+} -+ -+static inline bool deadline_before(u64 deadline, u64 time) -+{ -+ return (deadline < time); -+} -+ -+/* -+ * Deadline is "now" in niffies + (offset by priority). Setting the deadline -+ * is the key to everything. It distributes cpu fairly amongst tasks of the -+ * same nice value, it proportions cpu according to nice level, it means the -+ * task that last woke up the longest ago has the earliest deadline, thus -+ * ensuring that interactive tasks get low latency on wake up. The CPU -+ * proportion works out to the square of the virtual deadline difference, so -+ * this equation will give nice 19 3% CPU compared to nice 0. -+ */ -+static inline u64 prio_deadline_diff(int user_prio) -+{ -+ return (prio_ratios[user_prio] * rr_interval * (MS_TO_NS(1) / 128)); -+} -+ -+static inline u64 task_deadline_diff(struct task_struct *p) -+{ -+ return prio_deadline_diff(TASK_USER_PRIO(p)); -+} -+ -+static inline u64 static_deadline_diff(int static_prio) -+{ -+ return prio_deadline_diff(USER_PRIO(static_prio)); -+} -+ -+static inline int longest_deadline_diff(void) -+{ -+ return prio_deadline_diff(39); -+} -+ -+static inline int ms_longest_deadline_diff(void) -+{ -+ return NS_TO_MS(longest_deadline_diff()); -+} -+ -+static inline bool rq_local(struct rq *rq); -+ -+#ifndef SCHED_CAPACITY_SCALE -+#define SCHED_CAPACITY_SCALE 1024 -+#endif -+ -+static inline int rq_load(struct rq *rq) -+{ -+ return rq->nr_running; -+} -+ -+/* -+ * Update the load average for feeding into cpu frequency governors. Use a -+ * rough estimate of a rolling average with ~ time constant of 32ms. -+ * 80/128 ~ 0.63. * 80 / 32768 / 128 == * 5 / 262144 -+ * Make sure a call to update_clocks has been made before calling this to get -+ * an updated rq->niffies. -+ */ -+static void update_load_avg(struct rq *rq, unsigned int flags) -+{ -+ long us_interval, load; -+ unsigned long curload; -+ -+ us_interval = NS_TO_US(rq->niffies - rq->load_update); -+ if (unlikely(us_interval <= 0)) -+ return; -+ -+ curload = rq_load(rq); -+ load = rq->load_avg - (rq->load_avg * us_interval * 5 / 262144); -+ if (unlikely(load < 0)) -+ load = 0; -+ load += curload * curload * SCHED_CAPACITY_SCALE * us_interval * 5 / 262144; -+ rq->load_avg = load; -+ -+ rq->load_update = rq->niffies; -+ update_irq_load_avg(rq, 0); -+ if (likely(rq_local(rq))) -+ cpufreq_trigger(rq, flags); -+} -+ -+#ifdef HAVE_SCHED_AVG_IRQ -+/* -+ * IRQ variant of update_load_avg below. delta is actually time in nanoseconds -+ * here so we scale curload to how long it's been since the last update. -+ */ -+static void update_irq_load_avg(struct rq *rq, long delta) -+{ -+ long us_interval, load; -+ unsigned long curload; -+ -+ us_interval = NS_TO_US(rq->niffies - rq->irq_load_update); -+ if (unlikely(us_interval <= 0)) -+ return; -+ -+ curload = NS_TO_US(delta) / us_interval; -+ load = rq->irq_load_avg - (rq->irq_load_avg * us_interval * 5 / 262144); -+ if (unlikely(load < 0)) -+ load = 0; -+ load += curload * curload * SCHED_CAPACITY_SCALE * us_interval * 5 / 262144; -+ rq->irq_load_avg = load; -+ -+ rq->irq_load_update = rq->niffies; -+} -+#endif -+ -+/* -+ * Removing from the runqueue. Enter with rq locked. Deleting a task -+ * from the skip list is done via the stored node reference in the task struct -+ * and does not require a full look up. Thus it occurs in O(k) time where k -+ * is the "level" of the list the task was stored at - usually < 4, max 8. -+ */ -+static void dequeue_task(struct rq *rq, struct task_struct *p, int flags) -+{ -+ skiplist_delete(rq->sl, &p->node); -+ rq->best_key = rq->node->next[0]->key; -+ update_clocks(rq); -+ -+ if (!(flags & DEQUEUE_SAVE)) -+ sched_info_dequeued(task_rq(p), p); -+ rq->nr_running--; -+ if (rt_task(p)) -+ rq->rt_nr_running--; -+ update_load_avg(rq, flags); -+} -+ -+#ifdef CONFIG_PREEMPT_RCU -+static bool rcu_read_critical(struct task_struct *p) -+{ -+ return p->rcu_read_unlock_special.b.blocked; -+} -+#else /* CONFIG_PREEMPT_RCU */ -+#define rcu_read_critical(p) (false) -+#endif /* CONFIG_PREEMPT_RCU */ -+ -+/* -+ * To determine if it's safe for a task of SCHED_IDLEPRIO to actually run as -+ * an idle task, we ensure none of the following conditions are met. -+ */ -+static bool idleprio_suitable(struct task_struct *p) -+{ -+ return (!(task_contributes_to_load(p)) && !(p->flags & (PF_EXITING)) && -+ !signal_pending(p) && !rcu_read_critical(p) && !freezing(p)); -+} -+ -+/* -+ * To determine if a task of SCHED_ISO can run in pseudo-realtime, we check -+ * that the iso_refractory flag is not set. -+ */ -+static inline bool isoprio_suitable(struct rq *rq) -+{ -+ return !rq->iso_refractory; -+} -+ -+/* -+ * Adding to the runqueue. Enter with rq locked. -+ */ -+static void enqueue_task(struct rq *rq, struct task_struct *p, int flags) -+{ -+ unsigned int randseed, cflags = 0; -+ u64 sl_id; -+ -+ if (!rt_task(p)) { -+ /* Check it hasn't gotten rt from PI */ -+ if ((idleprio_task(p) && idleprio_suitable(p)) || -+ (iso_task(p) && isoprio_suitable(rq))) -+ p->prio = p->normal_prio; -+ else -+ p->prio = NORMAL_PRIO; -+ } else -+ rq->rt_nr_running++; -+ /* -+ * The sl_id key passed to the skiplist generates a sorted list. -+ * Realtime and sched iso tasks run FIFO so they only need be sorted -+ * according to priority. The skiplist will put tasks of the same -+ * key inserted later in FIFO order. Tasks of sched normal, batch -+ * and idleprio are sorted according to their deadlines. Idleprio -+ * tasks are offset by an impossibly large deadline value ensuring -+ * they get sorted into last positions, but still according to their -+ * own deadlines. This creates a "landscape" of skiplists running -+ * from priority 0 realtime in first place to the lowest priority -+ * idleprio tasks last. Skiplist insertion is an O(log n) process. -+ */ -+ if (p->prio <= ISO_PRIO) { -+ sl_id = p->prio; -+ } else { -+ sl_id = p->deadline; -+ if (idleprio_task(p)) { -+ if (p->prio == IDLE_PRIO) -+ sl_id |= 0xF000000000000000; -+ else -+ sl_id += longest_deadline_diff(); -+ } -+ } -+ /* -+ * Some architectures don't have better than microsecond resolution -+ * so mask out ~microseconds as the random seed for skiplist insertion. -+ */ -+ update_clocks(rq); -+ if (!(flags & ENQUEUE_RESTORE)) -+ sched_info_queued(rq, p); -+ randseed = (rq->niffies >> 10) & 0xFFFFFFFF; -+ skiplist_insert(rq->sl, &p->node, sl_id, p, randseed); -+ rq->best_key = rq->node->next[0]->key; -+ if (p->in_iowait) -+ cflags |= SCHED_CPUFREQ_IOWAIT; -+ rq->nr_running++; -+ update_load_avg(rq, cflags); -+} -+ -+/* -+ * Returns the relative length of deadline all compared to the shortest -+ * deadline which is that of nice -20. -+ */ -+static inline int task_prio_ratio(struct task_struct *p) -+{ -+ return prio_ratios[TASK_USER_PRIO(p)]; -+} -+ -+/* -+ * task_timeslice - all tasks of all priorities get the exact same timeslice -+ * length. CPU distribution is handled by giving different deadlines to -+ * tasks of different priorities. Use 128 as the base value for fast shifts. -+ */ -+static inline int task_timeslice(struct task_struct *p) -+{ -+ return (rr_interval * task_prio_ratio(p) / 128); -+} -+ -+#ifdef CONFIG_SMP -+/* Entered with rq locked */ -+static inline void resched_if_idle(struct rq *rq) -+{ -+ if (rq_idle(rq)) -+ resched_task(rq->curr); -+} -+ -+static inline bool rq_local(struct rq *rq) -+{ -+ return (rq->cpu == smp_processor_id()); -+} -+#ifdef CONFIG_SMT_NICE -+static const cpumask_t *thread_cpumask(int cpu); -+ -+/* Find the best real time priority running on any SMT siblings of cpu and if -+ * none are running, the static priority of the best deadline task running. -+ * The lookups to the other runqueues is done lockless as the occasional wrong -+ * value would be harmless. */ -+static int best_smt_bias(struct rq *this_rq) -+{ -+ int other_cpu, best_bias = 0; -+ -+ for_each_cpu(other_cpu, &this_rq->thread_mask) { -+ struct rq *rq = cpu_rq(other_cpu); -+ -+ if (rq_idle(rq)) -+ continue; -+ if (unlikely(!rq->online)) -+ continue; -+ if (!rq->rq_mm) -+ continue; -+ if (likely(rq->rq_smt_bias > best_bias)) -+ best_bias = rq->rq_smt_bias; -+ } -+ return best_bias; -+} -+ -+static int task_prio_bias(struct task_struct *p) -+{ -+ if (rt_task(p)) -+ return 1 << 30; -+ else if (task_running_iso(p)) -+ return 1 << 29; -+ else if (task_running_idle(p)) -+ return 0; -+ return MAX_PRIO - p->static_prio; -+} -+ -+static bool smt_always_schedule(struct task_struct __maybe_unused *p, struct rq __maybe_unused *this_rq) -+{ -+ return true; -+} -+ -+static bool (*smt_schedule)(struct task_struct *p, struct rq *this_rq) = &smt_always_schedule; -+ -+/* We've already decided p can run on CPU, now test if it shouldn't for SMT -+ * nice reasons. */ -+static bool smt_should_schedule(struct task_struct *p, struct rq *this_rq) -+{ -+ int best_bias, task_bias; -+ -+ /* Kernel threads always run */ -+ if (unlikely(!p->mm)) -+ return true; -+ if (rt_task(p)) -+ return true; -+ if (!idleprio_suitable(p)) -+ return true; -+ best_bias = best_smt_bias(this_rq); -+ /* The smt siblings are all idle or running IDLEPRIO */ -+ if (best_bias < 1) -+ return true; -+ task_bias = task_prio_bias(p); -+ if (task_bias < 1) -+ return false; -+ if (task_bias >= best_bias) -+ return true; -+ /* Dither 25% cpu of normal tasks regardless of nice difference */ -+ if (best_bias % 4 == 1) -+ return true; -+ /* Sorry, you lose */ -+ return false; -+} -+#else /* CONFIG_SMT_NICE */ -+#define smt_schedule(p, this_rq) (true) -+#endif /* CONFIG_SMT_NICE */ -+ -+static inline void atomic_set_cpu(int cpu, cpumask_t *cpumask) -+{ -+ set_bit(cpu, (volatile unsigned long *)cpumask); -+} -+ -+/* -+ * The cpu_idle_map stores a bitmap of all the CPUs currently idle to -+ * allow easy lookup of whether any suitable idle CPUs are available. -+ * It's cheaper to maintain a binary yes/no if there are any idle CPUs on the -+ * idle_cpus variable than to do a full bitmask check when we are busy. The -+ * bits are set atomically but read locklessly as occasional false positive / -+ * negative is harmless. -+ */ -+static inline void set_cpuidle_map(int cpu) -+{ -+ if (likely(cpu_online(cpu))) -+ atomic_set_cpu(cpu, &cpu_idle_map); -+} -+ -+static inline void atomic_clear_cpu(int cpu, cpumask_t *cpumask) -+{ -+ clear_bit(cpu, (volatile unsigned long *)cpumask); -+} -+ -+static inline void clear_cpuidle_map(int cpu) -+{ -+ atomic_clear_cpu(cpu, &cpu_idle_map); -+} -+ -+static bool suitable_idle_cpus(struct task_struct *p) -+{ -+ return (cpumask_intersects(&p->cpus_allowed, &cpu_idle_map)); -+} -+ -+/* -+ * Resched current on rq. We don't know if rq is local to this CPU nor if it -+ * is locked so we do not use an intermediate variable for the task to avoid -+ * having it dereferenced. -+ */ -+static void resched_curr(struct rq *rq) -+{ -+ int cpu; -+ -+ if (test_tsk_need_resched(rq->curr)) -+ return; -+ -+ rq->preempt = rq->curr; -+ cpu = rq->cpu; -+ -+ /* We're doing this without holding the rq lock if it's not task_rq */ -+ -+ if (cpu == smp_processor_id()) { -+ set_tsk_need_resched(rq->curr); -+ set_preempt_need_resched(); -+ return; -+ } -+ -+ if (set_nr_and_not_polling(rq->curr)) -+ smp_sched_reschedule(cpu); -+ else -+ trace_sched_wake_idle_without_ipi(cpu); -+} -+ -+#define CPUIDLE_DIFF_THREAD (1) -+#define CPUIDLE_DIFF_CORE (2) -+#define CPUIDLE_CACHE_BUSY (4) -+#define CPUIDLE_DIFF_CPU (8) -+#define CPUIDLE_THREAD_BUSY (16) -+#define CPUIDLE_DIFF_NODE (32) -+ -+#ifdef CONFIG_SCHED_SMT -+DEFINE_STATIC_KEY_FALSE(sched_smt_present); -+#endif -+ -+/* -+ * The best idle CPU is chosen according to the CPUIDLE ranking above where the -+ * lowest value would give the most suitable CPU to schedule p onto next. The -+ * order works out to be the following: -+ * -+ * Same thread, idle or busy cache, idle or busy threads -+ * Other core, same cache, idle or busy cache, idle threads. -+ * Same node, other CPU, idle cache, idle threads. -+ * Same node, other CPU, busy cache, idle threads. -+ * Other core, same cache, busy threads. -+ * Same node, other CPU, busy threads. -+ * Other node, other CPU, idle cache, idle threads. -+ * Other node, other CPU, busy cache, idle threads. -+ * Other node, other CPU, busy threads. -+ */ -+static int best_mask_cpu(int best_cpu, struct rq *rq, cpumask_t *tmpmask) -+{ -+ int best_ranking = CPUIDLE_DIFF_NODE | CPUIDLE_THREAD_BUSY | -+ CPUIDLE_DIFF_CPU | CPUIDLE_CACHE_BUSY | CPUIDLE_DIFF_CORE | -+ CPUIDLE_DIFF_THREAD; -+ int cpu_tmp; -+ -+ if (cpumask_test_cpu(best_cpu, tmpmask)) -+ goto out; -+ -+ for_each_cpu(cpu_tmp, tmpmask) { -+ int ranking, locality; -+ struct rq *tmp_rq; -+ -+ ranking = 0; -+ tmp_rq = cpu_rq(cpu_tmp); -+ -+ locality = rq->cpu_locality[cpu_tmp]; -+#ifdef CONFIG_NUMA -+ if (locality > 3) -+ ranking |= CPUIDLE_DIFF_NODE; -+ else -+#endif -+ if (locality > 2) -+ ranking |= CPUIDLE_DIFF_CPU; -+#ifdef CONFIG_SCHED_MC -+ else if (locality == 2) -+ ranking |= CPUIDLE_DIFF_CORE; -+ else if (!(tmp_rq->cache_idle(tmp_rq))) -+ ranking |= CPUIDLE_CACHE_BUSY; -+#endif -+#ifdef CONFIG_SCHED_SMT -+ if (locality == 1) -+ ranking |= CPUIDLE_DIFF_THREAD; -+ if (!(tmp_rq->siblings_idle(tmp_rq))) -+ ranking |= CPUIDLE_THREAD_BUSY; -+#endif -+ if (ranking < best_ranking) { -+ best_cpu = cpu_tmp; -+ best_ranking = ranking; -+ } -+ } -+out: -+ return best_cpu; -+} -+ -+bool cpus_share_cache(int this_cpu, int that_cpu) -+{ -+ struct rq *this_rq = cpu_rq(this_cpu); -+ -+ return (this_rq->cpu_locality[that_cpu] < 3); -+} -+ -+/* As per resched_curr but only will resched idle task */ -+static inline void resched_idle(struct rq *rq) -+{ -+ if (test_tsk_need_resched(rq->idle)) -+ return; -+ -+ rq->preempt = rq->idle; -+ -+ set_tsk_need_resched(rq->idle); -+ -+ if (rq_local(rq)) { -+ set_preempt_need_resched(); -+ return; -+ } -+ -+ smp_sched_reschedule(rq->cpu); -+} -+ -+static struct rq *resched_best_idle(struct task_struct *p, int cpu) -+{ -+ cpumask_t tmpmask; -+ struct rq *rq; -+ int best_cpu; -+ -+ cpumask_and(&tmpmask, &p->cpus_allowed, &cpu_idle_map); -+ best_cpu = best_mask_cpu(cpu, task_rq(p), &tmpmask); -+ rq = cpu_rq(best_cpu); -+ if (!smt_schedule(p, rq)) -+ return NULL; -+ rq->preempt = p; -+ resched_idle(rq); -+ return rq; -+} -+ -+static inline void resched_suitable_idle(struct task_struct *p) -+{ -+ if (suitable_idle_cpus(p)) -+ resched_best_idle(p, task_cpu(p)); -+} -+ -+static inline struct rq *rq_order(struct rq *rq, int cpu) -+{ -+ return rq->rq_order[cpu]; -+} -+#else /* CONFIG_SMP */ -+static inline void set_cpuidle_map(int cpu) -+{ -+} -+ -+static inline void clear_cpuidle_map(int cpu) -+{ -+} -+ -+static inline bool suitable_idle_cpus(struct task_struct *p) -+{ -+ return uprq->curr == uprq->idle; -+} -+ -+static inline void resched_suitable_idle(struct task_struct *p) -+{ -+} -+ -+static inline void resched_curr(struct rq *rq) -+{ -+ resched_task(rq->curr); -+} -+ -+static inline void resched_if_idle(struct rq *rq) -+{ -+} -+ -+static inline bool rq_local(struct rq *rq) -+{ -+ return true; -+} -+ -+static inline struct rq *rq_order(struct rq *rq, int cpu) -+{ -+ return rq; -+} -+ -+static inline bool smt_schedule(struct task_struct *p, struct rq *rq) -+{ -+ return true; -+} -+#endif /* CONFIG_SMP */ -+ -+static inline int normal_prio(struct task_struct *p) -+{ -+ if (has_rt_policy(p)) -+ return MAX_RT_PRIO - 1 - p->rt_priority; -+ if (idleprio_task(p)) -+ return IDLE_PRIO; -+ if (iso_task(p)) -+ return ISO_PRIO; -+ return NORMAL_PRIO; -+} -+ -+/* -+ * Calculate the current priority, i.e. the priority -+ * taken into account by the scheduler. This value might -+ * be boosted by RT tasks as it will be RT if the task got -+ * RT-boosted. If not then it returns p->normal_prio. -+ */ -+static int effective_prio(struct task_struct *p) -+{ -+ p->normal_prio = normal_prio(p); -+ /* -+ * If we are RT tasks or we were boosted to RT priority, -+ * keep the priority unchanged. Otherwise, update priority -+ * to the normal priority: -+ */ -+ if (!rt_prio(p->prio)) -+ return p->normal_prio; -+ return p->prio; -+} -+ -+/* -+ * activate_task - move a task to the runqueue. Enter with rq locked. -+ */ -+static void activate_task(struct task_struct *p, struct rq *rq) -+{ -+ resched_if_idle(rq); -+ -+ /* -+ * Sleep time is in units of nanosecs, so shift by 20 to get a -+ * milliseconds-range estimation of the amount of time that the task -+ * spent sleeping: -+ */ -+ if (unlikely(prof_on == SLEEP_PROFILING)) { -+ if (p->state == TASK_UNINTERRUPTIBLE) -+ profile_hits(SLEEP_PROFILING, (void *)get_wchan(p), -+ (rq->niffies - p->last_ran) >> 20); -+ } -+ -+ p->prio = effective_prio(p); -+ if (task_contributes_to_load(p)) -+ rq->nr_uninterruptible--; -+ -+ enqueue_task(rq, p, 0); -+ p->on_rq = TASK_ON_RQ_QUEUED; -+} -+ -+/* -+ * deactivate_task - If it's running, it's not on the runqueue and we can just -+ * decrement the nr_running. Enter with rq locked. -+ */ -+static inline void deactivate_task(struct task_struct *p, struct rq *rq) -+{ -+ if (task_contributes_to_load(p)) -+ rq->nr_uninterruptible++; -+ -+ p->on_rq = 0; -+ sched_info_dequeued(rq, p); -+} -+ -+#ifdef CONFIG_SMP -+void set_task_cpu(struct task_struct *p, unsigned int new_cpu) -+{ -+ struct rq *rq; -+ -+ if (task_cpu(p) == new_cpu) -+ return; -+ -+ /* Do NOT call set_task_cpu on a currently queued task as we will not -+ * be reliably holding the rq lock after changing CPU. */ -+ BUG_ON(task_queued(p)); -+ rq = task_rq(p); -+ -+#ifdef CONFIG_LOCKDEP -+ /* -+ * The caller should hold either p->pi_lock or rq->lock, when changing -+ * a task's CPU. ->pi_lock for waking tasks, rq->lock for runnable tasks. -+ * -+ * Furthermore, all task_rq users should acquire both locks, see -+ * task_rq_lock(). -+ */ -+ WARN_ON_ONCE(debug_locks && !(lockdep_is_held(&p->pi_lock) || -+ lockdep_is_held(rq->lock))); -+#endif -+ -+ trace_sched_migrate_task(p, new_cpu); -+ rseq_migrate(p); -+ perf_event_task_migrate(p); -+ -+ /* -+ * After ->cpu is set up to a new value, task_rq_lock(p, ...) can be -+ * successfully executed on another CPU. We must ensure that updates of -+ * per-task data have been completed by this moment. -+ */ -+ smp_wmb(); -+ -+ p->wake_cpu = new_cpu; -+ -+ if (task_running(rq, p)) { -+ /* -+ * We should only be calling this on a running task if we're -+ * holding rq lock. -+ */ -+ lockdep_assert_held(rq->lock); -+ -+ /* -+ * We can't change the task_thread_info CPU on a running task -+ * as p will still be protected by the rq lock of the CPU it -+ * is still running on so we only set the wake_cpu for it to be -+ * lazily updated once off the CPU. -+ */ -+ return; -+ } -+ -+#ifdef CONFIG_THREAD_INFO_IN_TASK -+ p->cpu = new_cpu; -+#else -+ task_thread_info(p)->cpu = new_cpu; -+#endif -+ /* We're no longer protecting p after this point since we're holding -+ * the wrong runqueue lock. */ -+} -+#endif /* CONFIG_SMP */ -+ -+/* -+ * Move a task off the runqueue and take it to a cpu for it will -+ * become the running task. -+ */ -+static inline void take_task(struct rq *rq, int cpu, struct task_struct *p) -+{ -+ struct rq *p_rq = task_rq(p); -+ -+ dequeue_task(p_rq, p, DEQUEUE_SAVE); -+ if (p_rq != rq) { -+ sched_info_dequeued(p_rq, p); -+ sched_info_queued(rq, p); -+ } -+ set_task_cpu(p, cpu); -+} -+ -+/* -+ * Returns a descheduling task to the runqueue unless it is being -+ * deactivated. -+ */ -+static inline void return_task(struct task_struct *p, struct rq *rq, -+ int cpu, bool deactivate) -+{ -+ if (deactivate) -+ deactivate_task(p, rq); -+ else { -+#ifdef CONFIG_SMP -+ /* -+ * set_task_cpu was called on the running task that doesn't -+ * want to deactivate so it has to be enqueued to a different -+ * CPU and we need its lock. Tag it to be moved with as the -+ * lock is dropped in finish_lock_switch. -+ */ -+ if (unlikely(p->wake_cpu != cpu)) -+ p->on_rq = TASK_ON_RQ_MIGRATING; -+ else -+#endif -+ enqueue_task(rq, p, ENQUEUE_RESTORE); -+ } -+} -+ -+/* Enter with rq lock held. We know p is on the local cpu */ -+static inline void __set_tsk_resched(struct task_struct *p) -+{ -+ set_tsk_need_resched(p); -+ set_preempt_need_resched(); -+} -+ -+/** -+ * task_curr - is this task currently executing on a CPU? -+ * @p: the task in question. -+ * -+ * Return: 1 if the task is currently executing. 0 otherwise. -+ */ -+inline int task_curr(const struct task_struct *p) -+{ -+ return cpu_curr(task_cpu(p)) == p; -+} -+ -+#ifdef CONFIG_SMP -+/* -+ * wait_task_inactive - wait for a thread to unschedule. -+ * -+ * If @match_state is nonzero, it's the @p->state value just checked and -+ * not expected to change. If it changes, i.e. @p might have woken up, -+ * then return zero. When we succeed in waiting for @p to be off its CPU, -+ * we return a positive number (its total switch count). If a second call -+ * a short while later returns the same number, the caller can be sure that -+ * @p has remained unscheduled the whole time. -+ * -+ * The caller must ensure that the task *will* unschedule sometime soon, -+ * else this function might spin for a *long* time. This function can't -+ * be called with interrupts off, or it may introduce deadlock with -+ * smp_call_function() if an IPI is sent by the same process we are -+ * waiting to become inactive. -+ */ -+unsigned long wait_task_inactive(struct task_struct *p, long match_state) -+{ -+ int running, queued; -+ unsigned long flags; -+ unsigned long ncsw; -+ struct rq *rq; -+ -+ for (;;) { -+ rq = task_rq(p); -+ -+ /* -+ * If the task is actively running on another CPU -+ * still, just relax and busy-wait without holding -+ * any locks. -+ * -+ * NOTE! Since we don't hold any locks, it's not -+ * even sure that "rq" stays as the right runqueue! -+ * But we don't care, since this will return false -+ * if the runqueue has changed and p is actually now -+ * running somewhere else! -+ */ -+ while (task_running(rq, p)) { -+ if (match_state && unlikely(p->state != match_state)) -+ return 0; -+ cpu_relax(); -+ } -+ -+ /* -+ * Ok, time to look more closely! We need the rq -+ * lock now, to be *sure*. If we're wrong, we'll -+ * just go back and repeat. -+ */ -+ rq = task_rq_lock(p, &flags); -+ trace_sched_wait_task(p); -+ running = task_running(rq, p); -+ queued = task_on_rq_queued(p); -+ ncsw = 0; -+ if (!match_state || p->state == match_state) -+ ncsw = p->nvcsw | LONG_MIN; /* sets MSB */ -+ task_rq_unlock(rq, p, &flags); -+ -+ /* -+ * If it changed from the expected state, bail out now. -+ */ -+ if (unlikely(!ncsw)) -+ break; -+ -+ /* -+ * Was it really running after all now that we -+ * checked with the proper locks actually held? -+ * -+ * Oops. Go back and try again.. -+ */ -+ if (unlikely(running)) { -+ cpu_relax(); -+ continue; -+ } -+ -+ /* -+ * It's not enough that it's not actively running, -+ * it must be off the runqueue _entirely_, and not -+ * preempted! -+ * -+ * So if it was still runnable (but just not actively -+ * running right now), it's preempted, and we should -+ * yield - it could be a while. -+ */ -+ if (unlikely(queued)) { -+ ktime_t to = NSEC_PER_SEC / HZ; -+ -+ set_current_state(TASK_UNINTERRUPTIBLE); -+ schedule_hrtimeout(&to, HRTIMER_MODE_REL); -+ continue; -+ } -+ -+ /* -+ * Ahh, all good. It wasn't running, and it wasn't -+ * runnable, which means that it will never become -+ * running in the future either. We're all done! -+ */ -+ break; -+ } -+ -+ return ncsw; -+} -+ -+/*** -+ * kick_process - kick a running thread to enter/exit the kernel -+ * @p: the to-be-kicked thread -+ * -+ * Cause a process which is running on another CPU to enter -+ * kernel-mode, without any delay. (to get signals handled.) -+ * -+ * NOTE: this function doesn't have to take the runqueue lock, -+ * because all it wants to ensure is that the remote task enters -+ * the kernel. If the IPI races and the task has been migrated -+ * to another CPU then no harm is done and the purpose has been -+ * achieved as well. -+ */ -+void kick_process(struct task_struct *p) -+{ -+ int cpu; -+ -+ preempt_disable(); -+ cpu = task_cpu(p); -+ if ((cpu != smp_processor_id()) && task_curr(p)) -+ smp_sched_reschedule(cpu); -+ preempt_enable(); -+} -+EXPORT_SYMBOL_GPL(kick_process); -+#endif -+ -+/* -+ * RT tasks preempt purely on priority. SCHED_NORMAL tasks preempt on the -+ * basis of earlier deadlines. SCHED_IDLEPRIO don't preempt anything else or -+ * between themselves, they cooperatively multitask. An idle rq scores as -+ * prio PRIO_LIMIT so it is always preempted. -+ */ -+static inline bool -+can_preempt(struct task_struct *p, int prio, u64 deadline) -+{ -+ /* Better static priority RT task or better policy preemption */ -+ if (p->prio < prio) -+ return true; -+ if (p->prio > prio) -+ return false; -+ if (p->policy == SCHED_BATCH) -+ return false; -+ /* SCHED_NORMAL and ISO will preempt based on deadline */ -+ if (!deadline_before(p->deadline, deadline)) -+ return false; -+ return true; -+} -+ -+#ifdef CONFIG_SMP -+ -+static inline bool is_per_cpu_kthread(struct task_struct *p) -+{ -+ if (!(p->flags & PF_KTHREAD)) -+ return false; -+ -+ if (p->nr_cpus_allowed != 1) -+ return false; -+ -+ return true; -+} -+ -+/* -+ * Per-CPU kthreads are allowed to run on !active && online CPUs, see -+ * __set_cpus_allowed_ptr(). -+ */ -+static inline bool is_cpu_allowed(struct task_struct *p, int cpu) -+{ -+ if (!cpumask_test_cpu(cpu, &p->cpus_allowed)) -+ return false; -+ -+ if (is_per_cpu_kthread(p)) -+ return cpu_online(cpu); -+ -+ return cpu_active(cpu); -+} -+ -+/* -+ * Check to see if p can run on cpu, and if not, whether there are any online -+ * CPUs it can run on instead. This only happens with the hotplug threads that -+ * bring up the CPUs. -+ */ -+static inline bool sched_other_cpu(struct task_struct *p, int cpu) -+{ -+ if (likely(cpumask_test_cpu(cpu, &p->cpus_allowed))) -+ return false; -+ if (p->nr_cpus_allowed == 1) { -+ cpumask_t valid_mask; -+ -+ cpumask_and(&valid_mask, &p->cpus_allowed, cpu_online_mask); -+ if (unlikely(cpumask_empty(&valid_mask))) -+ return false; -+ } -+ return true; -+} -+ -+static inline bool needs_other_cpu(struct task_struct *p, int cpu) -+{ -+ if (cpumask_test_cpu(cpu, &p->cpus_allowed)) -+ return false; -+ return true; -+} -+ -+#define cpu_online_map (*(cpumask_t *)cpu_online_mask) -+ -+static void try_preempt(struct task_struct *p, struct rq *this_rq) -+{ -+ int i, this_entries = rq_load(this_rq); -+ cpumask_t tmp; -+ -+ if (suitable_idle_cpus(p) && resched_best_idle(p, task_cpu(p))) -+ return; -+ -+ /* IDLEPRIO tasks never preempt anything but idle */ -+ if (p->policy == SCHED_IDLEPRIO) -+ return; -+ -+ cpumask_and(&tmp, &cpu_online_map, &p->cpus_allowed); -+ -+ for (i = 0; i < num_possible_cpus(); i++) { -+ struct rq *rq = this_rq->cpu_order[i]; -+ -+ if (!cpumask_test_cpu(rq->cpu, &tmp)) -+ continue; -+ -+ if (!sched_interactive && rq != this_rq && rq_load(rq) <= this_entries) -+ continue; -+ if (smt_schedule(p, rq) && can_preempt(p, rq->rq_prio, rq->rq_deadline)) { -+ /* We set rq->preempting lockless, it's a hint only */ -+ rq->preempting = p; -+ resched_curr(rq); -+ return; -+ } -+ } -+} -+ -+static int __set_cpus_allowed_ptr(struct task_struct *p, -+ const struct cpumask *new_mask, bool check); -+#else /* CONFIG_SMP */ -+static inline bool needs_other_cpu(struct task_struct *p, int cpu) -+{ -+ return false; -+} -+ -+static void try_preempt(struct task_struct *p, struct rq *this_rq) -+{ -+ if (p->policy == SCHED_IDLEPRIO) -+ return; -+ if (can_preempt(p, uprq->rq_prio, uprq->rq_deadline)) -+ resched_curr(uprq); -+} -+ -+static inline int __set_cpus_allowed_ptr(struct task_struct *p, -+ const struct cpumask *new_mask, bool check) -+{ -+ return set_cpus_allowed_ptr(p, new_mask); -+} -+#endif /* CONFIG_SMP */ -+ -+/* -+ * wake flags -+ */ -+#define WF_SYNC 0x01 /* waker goes to sleep after wakeup */ -+#define WF_FORK 0x02 /* child wakeup after fork */ -+#define WF_MIGRATED 0x04 /* internal use, task got migrated */ -+ -+static void -+ttwu_stat(struct task_struct *p, int cpu, int wake_flags) -+{ -+ struct rq *rq; -+ -+ if (!schedstat_enabled()) -+ return; -+ -+ rq = this_rq(); -+ -+#ifdef CONFIG_SMP -+ if (cpu == rq->cpu) { -+ __schedstat_inc(rq->ttwu_local); -+ } else { -+ struct sched_domain *sd; -+ -+ rcu_read_lock(); -+ for_each_domain(rq->cpu, sd) { -+ if (cpumask_test_cpu(cpu, sched_domain_span(sd))) { -+ __schedstat_inc(sd->ttwu_wake_remote); -+ break; -+ } -+ } -+ rcu_read_unlock(); -+ } -+ -+#endif /* CONFIG_SMP */ -+ -+ __schedstat_inc(rq->ttwu_count); -+} -+ -+static inline void ttwu_activate(struct rq *rq, struct task_struct *p) -+{ -+ activate_task(p, rq); -+ -+ /* if a worker is waking up, notify the workqueue */ -+ if (p->flags & PF_WQ_WORKER) -+ wq_worker_waking_up(p, cpu_of(rq)); -+} -+ -+/* -+ * Mark the task runnable and perform wakeup-preemption. -+ */ -+static void ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags) -+{ -+ /* -+ * Sync wakeups (i.e. those types of wakeups where the waker -+ * has indicated that it will leave the CPU in short order) -+ * don't trigger a preemption if there are no idle cpus, -+ * instead waiting for current to deschedule. -+ */ -+ if (wake_flags & WF_SYNC) -+ resched_suitable_idle(p); -+ else -+ try_preempt(p, rq); -+ p->state = TASK_RUNNING; -+ trace_sched_wakeup(p); -+} -+ -+static void -+ttwu_do_activate(struct rq *rq, struct task_struct *p, int wake_flags) -+{ -+ lockdep_assert_held(rq->lock); -+ -+#ifdef CONFIG_SMP -+ if (p->sched_contributes_to_load) -+ rq->nr_uninterruptible--; -+#endif -+ -+ ttwu_activate(rq, p); -+ ttwu_do_wakeup(rq, p, wake_flags); -+} -+ -+/* -+ * Called in case the task @p isn't fully descheduled from its runqueue, -+ * in this case we must do a remote wakeup. Its a 'light' wakeup though, -+ * since all we need to do is flip p->state to TASK_RUNNING, since -+ * the task is still ->on_rq. -+ */ -+static int ttwu_remote(struct task_struct *p, int wake_flags) -+{ -+ struct rq *rq; -+ int ret = 0; -+ -+ rq = __task_rq_lock(p); -+ if (likely(task_on_rq_queued(p))) { -+ ttwu_do_wakeup(rq, p, wake_flags); -+ ret = 1; -+ } -+ __task_rq_unlock(rq); -+ -+ return ret; -+} -+ -+#ifdef CONFIG_SMP -+void sched_ttwu_pending(void) -+{ -+ struct rq *rq = this_rq(); -+ struct llist_node *llist = llist_del_all(&rq->wake_list); -+ struct task_struct *p, *t; -+ unsigned long flags; -+ -+ if (!llist) -+ return; -+ -+ rq_lock_irqsave(rq, &flags); -+ -+ llist_for_each_entry_safe(p, t, llist, wake_entry) -+ ttwu_do_activate(rq, p, 0); -+ -+ rq_unlock_irqrestore(rq, &flags); -+} -+ -+void scheduler_ipi(void) -+{ -+ /* -+ * Fold TIF_NEED_RESCHED into the preempt_count; anybody setting -+ * TIF_NEED_RESCHED remotely (for the first time) will also send -+ * this IPI. -+ */ -+ preempt_fold_need_resched(); -+ -+ if (llist_empty(&this_rq()->wake_list) && (!idle_cpu(smp_processor_id()) || need_resched())) -+ return; -+ -+ /* -+ * Not all reschedule IPI handlers call irq_enter/irq_exit, since -+ * traditionally all their work was done from the interrupt return -+ * path. Now that we actually do some work, we need to make sure -+ * we do call them. -+ * -+ * Some archs already do call them, luckily irq_enter/exit nest -+ * properly. -+ * -+ * Arguably we should visit all archs and update all handlers, -+ * however a fair share of IPIs are still resched only so this would -+ * somewhat pessimize the simple resched case. -+ */ -+ irq_enter(); -+ sched_ttwu_pending(); -+ irq_exit(); -+} -+ -+static void ttwu_queue_remote(struct task_struct *p, int cpu, int wake_flags) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ -+ if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) { -+ if (!set_nr_if_polling(rq->idle)) -+ smp_sched_reschedule(cpu); -+ else -+ trace_sched_wake_idle_without_ipi(cpu); -+ } -+} -+ -+void wake_up_if_idle(int cpu) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ unsigned long flags; -+ -+ rcu_read_lock(); -+ -+ if (!is_idle_task(rcu_dereference(rq->curr))) -+ goto out; -+ -+ if (set_nr_if_polling(rq->idle)) { -+ trace_sched_wake_idle_without_ipi(cpu); -+ } else { -+ rq_lock_irqsave(rq, &flags); -+ if (likely(is_idle_task(rq->curr))) -+ smp_sched_reschedule(cpu); -+ /* Else cpu is not in idle, do nothing here */ -+ rq_unlock_irqrestore(rq, &flags); -+ } -+ -+out: -+ rcu_read_unlock(); -+} -+ -+static int valid_task_cpu(struct task_struct *p) -+{ -+ cpumask_t valid_mask; -+ -+ if (p->flags & PF_KTHREAD) -+ cpumask_and(&valid_mask, &p->cpus_allowed, cpu_all_mask); -+ else -+ cpumask_and(&valid_mask, &p->cpus_allowed, cpu_active_mask); -+ -+ if (unlikely(!cpumask_weight(&valid_mask))) { -+ /* We shouldn't be hitting this any more */ -+ printk(KERN_WARNING "SCHED: No cpumask for %s/%d weight %d\n", p->comm, -+ p->pid, cpumask_weight(&p->cpus_allowed)); -+ return cpumask_any(&p->cpus_allowed); -+ } -+ return cpumask_any(&valid_mask); -+} -+ -+/* -+ * For a task that's just being woken up we have a valuable balancing -+ * opportunity so choose the nearest cache most lightly loaded runqueue. -+ * Entered with rq locked and returns with the chosen runqueue locked. -+ */ -+static inline int select_best_cpu(struct task_struct *p) -+{ -+ unsigned int idlest = ~0U; -+ struct rq *rq = NULL; -+ int i; -+ -+ if (suitable_idle_cpus(p)) { -+ int cpu = task_cpu(p); -+ -+ if (unlikely(needs_other_cpu(p, cpu))) -+ cpu = valid_task_cpu(p); -+ rq = resched_best_idle(p, cpu); -+ if (likely(rq)) -+ return rq->cpu; -+ } -+ -+ for (i = 0; i < num_possible_cpus(); i++) { -+ struct rq *other_rq = task_rq(p)->cpu_order[i]; -+ int entries; -+ -+ if (!other_rq->online) -+ continue; -+ if (needs_other_cpu(p, other_rq->cpu)) -+ continue; -+ entries = rq_load(other_rq); -+ if (entries >= idlest) -+ continue; -+ idlest = entries; -+ rq = other_rq; -+ } -+ if (unlikely(!rq)) -+ return task_cpu(p); -+ return rq->cpu; -+} -+#else /* CONFIG_SMP */ -+static int valid_task_cpu(struct task_struct *p) -+{ -+ return 0; -+} -+ -+static inline int select_best_cpu(struct task_struct *p) -+{ -+ return 0; -+} -+ -+static struct rq *resched_best_idle(struct task_struct *p, int cpu) -+{ -+ return NULL; -+} -+#endif /* CONFIG_SMP */ -+ -+static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ -+#if defined(CONFIG_SMP) -+ if (!cpus_share_cache(smp_processor_id(), cpu)) { -+ sched_clock_cpu(cpu); /* Sync clocks across CPUs */ -+ ttwu_queue_remote(p, cpu, wake_flags); -+ return; -+ } -+#endif -+ rq_lock(rq); -+ ttwu_do_activate(rq, p, wake_flags); -+ rq_unlock(rq); -+} -+ -+/*** -+ * try_to_wake_up - wake up a thread -+ * @p: the thread to be awakened -+ * @state: the mask of task states that can be woken -+ * @wake_flags: wake modifier flags (WF_*) -+ * -+ * Put it on the run-queue if it's not already there. The "current" -+ * thread is always on the run-queue (except when the actual -+ * re-schedule is in progress), and as such you're allowed to do -+ * the simpler "current->state = TASK_RUNNING" to mark yourself -+ * runnable without the overhead of this. -+ * -+ * Return: %true if @p was woken up, %false if it was already running. -+ * or @state didn't match @p's state. -+ */ -+static int -+try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags) -+{ -+ unsigned long flags; -+ int cpu, success = 0; -+ -+ /* -+ * If we are going to wake up a thread waiting for CONDITION we -+ * need to ensure that CONDITION=1 done by the caller can not be -+ * reordered with p->state check below. This pairs with mb() in -+ * set_current_state() the waiting thread does. -+ */ -+ raw_spin_lock_irqsave(&p->pi_lock, flags); -+ smp_mb__after_spinlock(); -+ /* state is a volatile long, どうして、分からない */ -+ if (!((unsigned int)p->state & state)) -+ goto out; -+ -+ trace_sched_waking(p); -+ -+ /* We're going to change ->state: */ -+ success = 1; -+ cpu = task_cpu(p); -+ -+ /* -+ * Ensure we load p->on_rq _after_ p->state, otherwise it would -+ * be possible to, falsely, observe p->on_rq == 0 and get stuck -+ * in smp_cond_load_acquire() below. -+ * -+ * sched_ttwu_pending() try_to_wake_up() -+ * STORE p->on_rq = 1 LOAD p->state -+ * UNLOCK rq->lock -+ * -+ * __schedule() (switch to task 'p') -+ * LOCK rq->lock smp_rmb(); -+ * smp_mb__after_spinlock(); -+ * UNLOCK rq->lock -+ * -+ * [task p] -+ * STORE p->state = UNINTERRUPTIBLE LOAD p->on_rq -+ * -+ * Pairs with the LOCK+smp_mb__after_spinlock() on rq->lock in -+ * __schedule(). See the comment for smp_mb__after_spinlock(). -+ */ -+ smp_rmb(); -+ if (p->on_rq && ttwu_remote(p, wake_flags)) -+ goto stat; -+ -+#ifdef CONFIG_SMP -+ /* -+ * Ensure we load p->on_cpu _after_ p->on_rq, otherwise it would be -+ * possible to, falsely, observe p->on_cpu == 0. -+ * -+ * One must be running (->on_cpu == 1) in order to remove oneself -+ * from the runqueue. -+ * -+ * __schedule() (switch to task 'p') try_to_wake_up() -+ * STORE p->on_cpu = 1 LOAD p->on_rq -+ * UNLOCK rq->lock -+ * -+ * __schedule() (put 'p' to sleep) -+ * LOCK rq->lock smp_rmb(); -+ * smp_mb__after_spinlock(); -+ * STORE p->on_rq = 0 LOAD p->on_cpu -+ * -+ * Pairs with the LOCK+smp_mb__after_spinlock() on rq->lock in -+ * __schedule(). See the comment for smp_mb__after_spinlock(). -+ */ -+ smp_rmb(); -+ -+ /* -+ * If the owning (remote) CPU is still in the middle of schedule() with -+ * this task as prev, wait until its done referencing the task. -+ * -+ * Pairs with the smp_store_release() in finish_task(). -+ * -+ * This ensures that tasks getting woken will be fully ordered against -+ * their previous state and preserve Program Order. -+ */ -+ smp_cond_load_acquire(&p->on_cpu, !VAL); -+ -+ p->sched_contributes_to_load = !!task_contributes_to_load(p); -+ p->state = TASK_WAKING; -+ -+ if (p->in_iowait) { -+ delayacct_blkio_end(p); -+ atomic_dec(&task_rq(p)->nr_iowait); -+ } -+ -+ cpu = select_best_cpu(p); -+ if (task_cpu(p) != cpu) -+ set_task_cpu(p, cpu); -+ -+#else /* CONFIG_SMP */ -+ -+ if (p->in_iowait) { -+ delayacct_blkio_end(p); -+ atomic_dec(&task_rq(p)->nr_iowait); -+ } -+ -+#endif /* CONFIG_SMP */ -+ -+ ttwu_queue(p, cpu, wake_flags); -+stat: -+ ttwu_stat(p, cpu, wake_flags); -+out: -+ raw_spin_unlock_irqrestore(&p->pi_lock, flags); -+ -+ return success; -+} -+ -+/** -+ * try_to_wake_up_local - try to wake up a local task with rq lock held -+ * @p: the thread to be awakened -+ * -+ * Put @p on the run-queue if it's not already there. The caller must -+ * ensure that rq is locked and, @p is not the current task. -+ * rq stays locked over invocation. -+ */ -+static void try_to_wake_up_local(struct task_struct *p) -+{ -+ struct rq *rq = task_rq(p); -+ -+ if (WARN_ON_ONCE(rq != this_rq()) || -+ WARN_ON_ONCE(p == current)) -+ return; -+ -+ lockdep_assert_held(rq->lock); -+ -+ if (!raw_spin_trylock(&p->pi_lock)) { -+ /* -+ * This is OK, because current is on_cpu, which avoids it being -+ * picked for load-balance and preemption/IRQs are still -+ * disabled avoiding further scheduler activity on it and we've -+ * not yet picked a replacement task. -+ */ -+ rq_unlock(rq); -+ raw_spin_lock(&p->pi_lock); -+ rq_lock(rq); -+ } -+ -+ if (!(p->state & TASK_NORMAL)) -+ goto out; -+ -+ trace_sched_waking(p); -+ -+ if (!task_on_rq_queued(p)) { -+ if (p->in_iowait) { -+ delayacct_blkio_end(p); -+ atomic_dec(&rq->nr_iowait); -+ } -+ ttwu_activate(rq, p); -+ } -+ -+ ttwu_do_wakeup(rq, p, 0); -+ ttwu_stat(p, smp_processor_id(), 0); -+out: -+ raw_spin_unlock(&p->pi_lock); -+} -+ -+/** -+ * wake_up_process - Wake up a specific process -+ * @p: The process to be woken up. -+ * -+ * Attempt to wake up the nominated process and move it to the set of runnable -+ * processes. -+ * -+ * Return: 1 if the process was woken up, 0 if it was already running. -+ * -+ * This function executes a full memory barrier before accessing the task state. -+ */ -+int wake_up_process(struct task_struct *p) -+{ -+ return try_to_wake_up(p, TASK_NORMAL, 0); -+} -+EXPORT_SYMBOL(wake_up_process); -+ -+int wake_up_state(struct task_struct *p, unsigned int state) -+{ -+ return try_to_wake_up(p, state, 0); -+} -+ -+static void time_slice_expired(struct task_struct *p, struct rq *rq); -+ -+/* -+ * Perform scheduler related setup for a newly forked process p. -+ * p is forked by current. -+ */ -+int sched_fork(unsigned long __maybe_unused clone_flags, struct task_struct *p) -+{ -+ unsigned long flags; -+ -+#ifdef CONFIG_PREEMPT_NOTIFIERS -+ INIT_HLIST_HEAD(&p->preempt_notifiers); -+#endif -+ /* -+ * We mark the process as NEW here. This guarantees that -+ * nobody will actually run it, and a signal or other external -+ * event cannot wake it up and insert it on the runqueue either. -+ */ -+ p->state = TASK_NEW; -+ -+ /* -+ * The process state is set to the same value of the process executing -+ * do_fork() code. That is running. This guarantees that nobody will -+ * actually run it, and a signal or other external event cannot wake -+ * it up and insert it on the runqueue either. -+ */ -+ -+ /* Should be reset in fork.c but done here for ease of MuQSS patching */ -+ p->on_cpu = -+ p->on_rq = -+ p->utime = -+ p->stime = -+ p->sched_time = -+ p->stime_ns = -+ p->utime_ns = 0; -+ skiplist_node_init(&p->node); -+ -+ /* -+ * Revert to default priority/policy on fork if requested. -+ */ -+ if (unlikely(p->sched_reset_on_fork)) { -+ if (p->policy == SCHED_FIFO || p->policy == SCHED_RR) { -+ p->policy = SCHED_NORMAL; -+ p->normal_prio = normal_prio(p); -+ } -+ -+ if (PRIO_TO_NICE(p->static_prio) < 0) { -+ p->static_prio = NICE_TO_PRIO(0); -+ p->normal_prio = p->static_prio; -+ } -+ -+ /* -+ * We don't need the reset flag anymore after the fork. It has -+ * fulfilled its duty: -+ */ -+ p->sched_reset_on_fork = 0; -+ } -+ -+ /* -+ * Silence PROVE_RCU. -+ */ -+ raw_spin_lock_irqsave(&p->pi_lock, flags); -+ set_task_cpu(p, smp_processor_id()); -+ raw_spin_unlock_irqrestore(&p->pi_lock, flags); -+ -+#ifdef CONFIG_SCHED_INFO -+ if (unlikely(sched_info_on())) -+ memset(&p->sched_info, 0, sizeof(p->sched_info)); -+#endif -+ init_task_preempt_count(p); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_SCHEDSTATS -+ -+DEFINE_STATIC_KEY_FALSE(sched_schedstats); -+static bool __initdata __sched_schedstats = false; -+ -+static void set_schedstats(bool enabled) -+{ -+ if (enabled) -+ static_branch_enable(&sched_schedstats); -+ else -+ static_branch_disable(&sched_schedstats); -+} -+ -+void force_schedstat_enabled(void) -+{ -+ if (!schedstat_enabled()) { -+ pr_info("kernel profiling enabled schedstats, disable via kernel.sched_schedstats.\n"); -+ static_branch_enable(&sched_schedstats); -+ } -+} -+ -+static int __init setup_schedstats(char *str) -+{ -+ int ret = 0; -+ if (!str) -+ goto out; -+ -+ /* -+ * This code is called before jump labels have been set up, so we can't -+ * change the static branch directly just yet. Instead set a temporary -+ * variable so init_schedstats() can do it later. -+ */ -+ if (!strcmp(str, "enable")) { -+ __sched_schedstats = true; -+ ret = 1; -+ } else if (!strcmp(str, "disable")) { -+ __sched_schedstats = false; -+ ret = 1; -+ } -+out: -+ if (!ret) -+ pr_warn("Unable to parse schedstats=\n"); -+ -+ return ret; -+} -+__setup("schedstats=", setup_schedstats); -+ -+static void __init init_schedstats(void) -+{ -+ set_schedstats(__sched_schedstats); -+} -+ -+#ifdef CONFIG_PROC_SYSCTL -+int sysctl_schedstats(struct ctl_table *table, int write, -+ void __user *buffer, size_t *lenp, loff_t *ppos) -+{ -+ struct ctl_table t; -+ int err; -+ int state = static_branch_likely(&sched_schedstats); -+ -+ if (write && !capable(CAP_SYS_ADMIN)) -+ return -EPERM; -+ -+ t = *table; -+ t.data = &state; -+ err = proc_dointvec_minmax(&t, write, buffer, lenp, ppos); -+ if (err < 0) -+ return err; -+ if (write) -+ set_schedstats(state); -+ return err; -+} -+#endif /* CONFIG_PROC_SYSCTL */ -+#else /* !CONFIG_SCHEDSTATS */ -+static inline void init_schedstats(void) {} -+#endif /* CONFIG_SCHEDSTATS */ -+ -+static void update_cpu_clock_switch(struct rq *rq, struct task_struct *p); -+ -+static void account_task_cpu(struct rq *rq, struct task_struct *p) -+{ -+ update_clocks(rq); -+ /* This isn't really a context switch but accounting is the same */ -+ update_cpu_clock_switch(rq, p); -+ p->last_ran = rq->niffies; -+} -+ -+bool sched_smp_initialized __read_mostly; -+ -+static inline int hrexpiry_enabled(struct rq *rq) -+{ -+ if (unlikely(!cpu_active(cpu_of(rq)) || !sched_smp_initialized)) -+ return 0; -+ return hrtimer_is_hres_active(&rq->hrexpiry_timer); -+} -+ -+/* -+ * Use HR-timers to deliver accurate preemption points. -+ */ -+static inline void hrexpiry_clear(struct rq *rq) -+{ -+ if (!hrexpiry_enabled(rq)) -+ return; -+ if (hrtimer_active(&rq->hrexpiry_timer)) -+ hrtimer_cancel(&rq->hrexpiry_timer); -+} -+ -+/* -+ * High-resolution time_slice expiry. -+ * Runs from hardirq context with interrupts disabled. -+ */ -+static enum hrtimer_restart hrexpiry(struct hrtimer *timer) -+{ -+ struct rq *rq = container_of(timer, struct rq, hrexpiry_timer); -+ struct task_struct *p; -+ -+ /* This can happen during CPU hotplug / resume */ -+ if (unlikely(cpu_of(rq) != smp_processor_id())) -+ goto out; -+ -+ /* -+ * We're doing this without the runqueue lock but this should always -+ * be run on the local CPU. Time slice should run out in __schedule -+ * but we set it to zero here in case niffies is slightly less. -+ */ -+ p = rq->curr; -+ p->time_slice = 0; -+ __set_tsk_resched(p); -+out: -+ return HRTIMER_NORESTART; -+} -+ -+/* -+ * Called to set the hrexpiry timer state. -+ * -+ * called with irqs disabled from the local CPU only -+ */ -+static void hrexpiry_start(struct rq *rq, u64 delay) -+{ -+ if (!hrexpiry_enabled(rq)) -+ return; -+ -+ hrtimer_start(&rq->hrexpiry_timer, ns_to_ktime(delay), -+ HRTIMER_MODE_REL_PINNED); -+} -+ -+static void init_rq_hrexpiry(struct rq *rq) -+{ -+ hrtimer_init(&rq->hrexpiry_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); -+ rq->hrexpiry_timer.function = hrexpiry; -+} -+ -+static inline int rq_dither(struct rq *rq) -+{ -+ if (!hrexpiry_enabled(rq)) -+ return HALF_JIFFY_US; -+ return 0; -+} -+ -+/* -+ * wake_up_new_task - wake up a newly created task for the first time. -+ * -+ * This function will do some initial scheduler statistics housekeeping -+ * that must be done for every newly created context, then puts the task -+ * on the runqueue and wakes it. -+ */ -+void wake_up_new_task(struct task_struct *p) -+{ -+ struct task_struct *parent, *rq_curr; -+ struct rq *rq, *new_rq; -+ unsigned long flags; -+ -+ parent = p->parent; -+ -+ raw_spin_lock_irqsave(&p->pi_lock, flags); -+ p->state = TASK_RUNNING; -+ /* Task_rq can't change yet on a new task */ -+ new_rq = rq = task_rq(p); -+ if (unlikely(needs_other_cpu(p, task_cpu(p)))) { -+ set_task_cpu(p, valid_task_cpu(p)); -+ new_rq = task_rq(p); -+ } -+ -+ double_rq_lock(rq, new_rq); -+ rq_curr = rq->curr; -+ -+ /* -+ * Make sure we do not leak PI boosting priority to the child. -+ */ -+ p->prio = rq_curr->normal_prio; -+ -+ trace_sched_wakeup_new(p); -+ -+ /* -+ * Share the timeslice between parent and child, thus the -+ * total amount of pending timeslices in the system doesn't change, -+ * resulting in more scheduling fairness. If it's negative, it won't -+ * matter since that's the same as being 0. rq->rq_deadline is only -+ * modified within schedule() so it is always equal to -+ * current->deadline. -+ */ -+ account_task_cpu(rq, rq_curr); -+ p->last_ran = rq_curr->last_ran; -+ if (likely(rq_curr->policy != SCHED_FIFO)) { -+ rq_curr->time_slice /= 2; -+ if (rq_curr->time_slice < RESCHED_US) { -+ /* -+ * Forking task has run out of timeslice. Reschedule it and -+ * start its child with a new time slice and deadline. The -+ * child will end up running first because its deadline will -+ * be slightly earlier. -+ */ -+ __set_tsk_resched(rq_curr); -+ time_slice_expired(p, new_rq); -+ if (suitable_idle_cpus(p)) -+ resched_best_idle(p, task_cpu(p)); -+ else if (unlikely(rq != new_rq)) -+ try_preempt(p, new_rq); -+ } else { -+ p->time_slice = rq_curr->time_slice; -+ if (rq_curr == parent && rq == new_rq && !suitable_idle_cpus(p)) { -+ /* -+ * The VM isn't cloned, so we're in a good position to -+ * do child-runs-first in anticipation of an exec. This -+ * usually avoids a lot of COW overhead. -+ */ -+ __set_tsk_resched(rq_curr); -+ } else { -+ /* -+ * Adjust the hrexpiry since rq_curr will keep -+ * running and its timeslice has been shortened. -+ */ -+ hrexpiry_start(rq, US_TO_NS(rq_curr->time_slice)); -+ try_preempt(p, new_rq); -+ } -+ } -+ } else { -+ time_slice_expired(p, new_rq); -+ try_preempt(p, new_rq); -+ } -+ activate_task(p, new_rq); -+ double_rq_unlock(rq, new_rq); -+ raw_spin_unlock_irqrestore(&p->pi_lock, flags); -+} -+ -+#ifdef CONFIG_PREEMPT_NOTIFIERS -+ -+static DEFINE_STATIC_KEY_FALSE(preempt_notifier_key); -+ -+void preempt_notifier_inc(void) -+{ -+ static_branch_inc(&preempt_notifier_key); -+} -+EXPORT_SYMBOL_GPL(preempt_notifier_inc); -+ -+void preempt_notifier_dec(void) -+{ -+ static_branch_dec(&preempt_notifier_key); -+} -+EXPORT_SYMBOL_GPL(preempt_notifier_dec); -+ -+/** -+ * preempt_notifier_register - tell me when current is being preempted & rescheduled -+ * @notifier: notifier struct to register -+ */ -+void preempt_notifier_register(struct preempt_notifier *notifier) -+{ -+ if (!static_branch_unlikely(&preempt_notifier_key)) -+ WARN(1, "registering preempt_notifier while notifiers disabled\n"); -+ -+ hlist_add_head(¬ifier->link, ¤t->preempt_notifiers); -+} -+EXPORT_SYMBOL_GPL(preempt_notifier_register); -+ -+/** -+ * preempt_notifier_unregister - no longer interested in preemption notifications -+ * @notifier: notifier struct to unregister -+ * -+ * This is *not* safe to call from within a preemption notifier. -+ */ -+void preempt_notifier_unregister(struct preempt_notifier *notifier) -+{ -+ hlist_del(¬ifier->link); -+} -+EXPORT_SYMBOL_GPL(preempt_notifier_unregister); -+ -+static void __fire_sched_in_preempt_notifiers(struct task_struct *curr) -+{ -+ struct preempt_notifier *notifier; -+ -+ hlist_for_each_entry(notifier, &curr->preempt_notifiers, link) -+ notifier->ops->sched_in(notifier, raw_smp_processor_id()); -+} -+ -+static __always_inline void fire_sched_in_preempt_notifiers(struct task_struct *curr) -+{ -+ if (static_branch_unlikely(&preempt_notifier_key)) -+ __fire_sched_in_preempt_notifiers(curr); -+} -+ -+static void -+__fire_sched_out_preempt_notifiers(struct task_struct *curr, -+ struct task_struct *next) -+{ -+ struct preempt_notifier *notifier; -+ -+ hlist_for_each_entry(notifier, &curr->preempt_notifiers, link) -+ notifier->ops->sched_out(notifier, next); -+} -+ -+static __always_inline void -+fire_sched_out_preempt_notifiers(struct task_struct *curr, -+ struct task_struct *next) -+{ -+ if (static_branch_unlikely(&preempt_notifier_key)) -+ __fire_sched_out_preempt_notifiers(curr, next); -+} -+ -+#else /* !CONFIG_PREEMPT_NOTIFIERS */ -+ -+static inline void fire_sched_in_preempt_notifiers(struct task_struct *curr) -+{ -+} -+ -+static inline void -+fire_sched_out_preempt_notifiers(struct task_struct *curr, -+ struct task_struct *next) -+{ -+} -+ -+#endif /* CONFIG_PREEMPT_NOTIFIERS */ -+ -+static inline void prepare_task(struct task_struct *next) -+{ -+ /* -+ * Claim the task as running, we do this before switching to it -+ * such that any running task will have this set. -+ */ -+ next->on_cpu = 1; -+} -+ -+static inline void finish_task(struct task_struct *prev) -+{ -+#ifdef CONFIG_SMP -+ /* -+ * After ->on_cpu is cleared, the task can be moved to a different CPU. -+ * We must ensure this doesn't happen until the switch is completely -+ * finished. -+ * -+ * In particular, the load of prev->state in finish_task_switch() must -+ * happen before this. -+ * -+ * Pairs with the smp_cond_load_acquire() in try_to_wake_up(). -+ */ -+ smp_store_release(&prev->on_cpu, 0); -+#endif -+} -+ -+static inline void -+prepare_lock_switch(struct rq *rq, struct task_struct *next) -+{ -+ /* -+ * Since the runqueue lock will be released by the next -+ * task (which is an invalid locking op but in the case -+ * of the scheduler it's an obvious special-case), so we -+ * do an early lockdep release here: -+ */ -+ spin_release(&rq->lock.dep_map, 1, _THIS_IP_); -+#ifdef CONFIG_DEBUG_SPINLOCK -+ /* this is a valid case when another task releases the spinlock */ -+ rq->lock.owner = next; -+#endif -+} -+ -+static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) -+{ -+ /* -+ * If we are tracking spinlock dependencies then we have to -+ * fix up the runqueue lock - which gets 'carried over' from -+ * prev into current: -+ */ -+ spin_acquire(&rq->lock.dep_map, 0, 0, _THIS_IP_); -+ -+#ifdef CONFIG_SMP -+ /* -+ * If prev was marked as migrating to another CPU in return_task, drop -+ * the local runqueue lock but leave interrupts disabled and grab the -+ * remote lock we're migrating it to before enabling them. -+ */ -+ if (unlikely(task_on_rq_migrating(prev))) { -+ sched_info_dequeued(rq, prev); -+ /* -+ * We move the ownership of prev to the new cpu now. ttwu can't -+ * activate prev to the wrong cpu since it has to grab this -+ * runqueue in ttwu_remote. -+ */ -+#ifdef CONFIG_THREAD_INFO_IN_TASK -+ prev->cpu = prev->wake_cpu; -+#else -+ task_thread_info(prev)->cpu = prev->wake_cpu; -+#endif -+ raw_spin_unlock(rq->lock); -+ -+ raw_spin_lock(&prev->pi_lock); -+ rq = __task_rq_lock(prev); -+ /* Check that someone else hasn't already queued prev */ -+ if (likely(!task_queued(prev))) { -+ enqueue_task(rq, prev, 0); -+ prev->on_rq = TASK_ON_RQ_QUEUED; -+ /* Wake up the CPU if it's not already running */ -+ resched_if_idle(rq); -+ } -+ raw_spin_unlock(&prev->pi_lock); -+ } -+#endif -+ rq_unlock(rq); -+ -+ do_pending_softirq(rq, current); -+ -+ local_irq_enable(); -+} -+ -+#ifndef prepare_arch_switch -+# define prepare_arch_switch(next) do { } while (0) -+#endif -+#ifndef finish_arch_switch -+# define finish_arch_switch(prev) do { } while (0) -+#endif -+#ifndef finish_arch_post_lock_switch -+# define finish_arch_post_lock_switch() do { } while (0) -+#endif -+ -+/** -+ * prepare_task_switch - prepare to switch tasks -+ * @rq: the runqueue preparing to switch -+ * @next: the task we are going to switch to. -+ * -+ * This is called with the rq lock held and interrupts off. It must -+ * be paired with a subsequent finish_task_switch after the context -+ * switch. -+ * -+ * prepare_task_switch sets up locking and calls architecture specific -+ * hooks. -+ */ -+static inline void -+prepare_task_switch(struct rq *rq, struct task_struct *prev, -+ struct task_struct *next) -+{ -+ kcov_prepare_switch(prev); -+ sched_info_switch(rq, prev, next); -+ perf_event_task_sched_out(prev, next); -+ rseq_preempt(prev); -+ fire_sched_out_preempt_notifiers(prev, next); -+ prepare_task(next); -+ prepare_arch_switch(next); -+} -+ -+/** -+ * finish_task_switch - clean up after a task-switch -+ * @rq: runqueue associated with task-switch -+ * @prev: the thread we just switched away from. -+ * -+ * finish_task_switch must be called after the context switch, paired -+ * with a prepare_task_switch call before the context switch. -+ * finish_task_switch will reconcile locking set up by prepare_task_switch, -+ * and do any other architecture-specific cleanup actions. -+ * -+ * Note that we may have delayed dropping an mm in context_switch(). If -+ * so, we finish that here outside of the runqueue lock. (Doing it -+ * with the lock held can cause deadlocks; see schedule() for -+ * details.) -+ * -+ * The context switch have flipped the stack from under us and restored the -+ * local variables which were saved when this task called schedule() in the -+ * past. prev == current is still correct but we need to recalculate this_rq -+ * because prev may have moved to another CPU. -+ */ -+static void finish_task_switch(struct task_struct *prev) -+ __releases(rq->lock) -+{ -+ struct rq *rq = this_rq(); -+ struct mm_struct *mm = rq->prev_mm; -+ long prev_state; -+ -+ /* -+ * The previous task will have left us with a preempt_count of 2 -+ * because it left us after: -+ * -+ * schedule() -+ * preempt_disable(); // 1 -+ * __schedule() -+ * raw_spin_lock_irq(rq->lock) // 2 -+ * -+ * Also, see FORK_PREEMPT_COUNT. -+ */ -+ if (WARN_ONCE(preempt_count() != 2*PREEMPT_DISABLE_OFFSET, -+ "corrupted preempt_count: %s/%d/0x%x\n", -+ current->comm, current->pid, preempt_count())) -+ preempt_count_set(FORK_PREEMPT_COUNT); -+ -+ rq->prev_mm = NULL; -+ -+ /* -+ * A task struct has one reference for the use as "current". -+ * If a task dies, then it sets TASK_DEAD in tsk->state and calls -+ * schedule one last time. The schedule call will never return, and -+ * the scheduled task must drop that reference. -+ * -+ * We must observe prev->state before clearing prev->on_cpu (in -+ * finish_task), otherwise a concurrent wakeup can get prev -+ * running on another CPU and we could rave with its RUNNING -> DEAD -+ * transition, resulting in a double drop. -+ */ -+ prev_state = prev->state; -+ vtime_task_switch(prev); -+ perf_event_task_sched_in(prev, current); -+ finish_task(prev); -+ finish_lock_switch(rq, prev); -+ finish_arch_post_lock_switch(); -+ kcov_finish_switch(current); -+ -+ fire_sched_in_preempt_notifiers(current); -+ /* -+ * When switching through a kernel thread, the loop in -+ * membarrier_{private,global}_expedited() may have observed that -+ * kernel thread and not issued an IPI. It is therefore possible to -+ * schedule between user->kernel->user threads without passing though -+ * switch_mm(). Membarrier requires a barrier after storing to -+ * rq->curr, before returning to userspace, so provide them here: -+ * -+ * - a full memory barrier for {PRIVATE,GLOBAL}_EXPEDITED, implicitly -+ * provided by mmdrop(), -+ * - a sync_core for SYNC_CORE. -+ */ -+ if (mm) { -+ membarrier_mm_sync_core_before_usermode(mm); -+ mmdrop(mm); -+ } -+ if (unlikely(prev_state == TASK_DEAD)) { -+ /* -+ * Remove function-return probe instances associated with this -+ * task and put them back on the free list. -+ */ -+ kprobe_flush_task(prev); -+ -+ /* Task is done with its stack. */ -+ put_task_stack(prev); -+ -+ put_task_struct(prev); -+ } -+} -+ -+/** -+ * schedule_tail - first thing a freshly forked thread must call. -+ * @prev: the thread we just switched away from. -+ */ -+asmlinkage __visible void schedule_tail(struct task_struct *prev) -+{ -+ /* -+ * New tasks start with FORK_PREEMPT_COUNT, see there and -+ * finish_task_switch() for details. -+ * -+ * finish_task_switch() will drop rq->lock() and lower preempt_count -+ * and the preempt_enable() will end up enabling preemption (on -+ * PREEMPT_COUNT kernels). -+ */ -+ -+ finish_task_switch(prev); -+ preempt_enable(); -+ -+ if (current->set_child_tid) -+ put_user(task_pid_vnr(current), current->set_child_tid); -+ -+ calculate_sigpending(); -+} -+ -+/* -+ * context_switch - switch to the new MM and the new thread's register state. -+ */ -+static __always_inline void -+context_switch(struct rq *rq, struct task_struct *prev, -+ struct task_struct *next) -+{ -+ struct mm_struct *mm, *oldmm; -+ -+ prepare_task_switch(rq, prev, next); -+ -+ mm = next->mm; -+ oldmm = prev->active_mm; -+ /* -+ * For paravirt, this is coupled with an exit in switch_to to -+ * combine the page table reload and the switch backend into -+ * one hypercall. -+ */ -+ arch_start_context_switch(prev); -+ -+ /* -+ * If mm is non-NULL, we pass through switch_mm(). If mm is -+ * NULL, we will pass through mmdrop() in finish_task_switch(). -+ * Both of these contain the full memory barrier required by -+ * membarrier after storing to rq->curr, before returning to -+ * user-space. -+ */ -+ if (!mm) { -+ next->active_mm = oldmm; -+ mmgrab(oldmm); -+ enter_lazy_tlb(oldmm, next); -+ } else -+ switch_mm_irqs_off(oldmm, mm, next); -+ -+ if (!prev->mm) { -+ prev->active_mm = NULL; -+ rq->prev_mm = oldmm; -+ } -+ prepare_lock_switch(rq, next); -+ -+ /* Here we just switch the register state and the stack. */ -+ switch_to(prev, next, prev); -+ barrier(); -+ -+ finish_task_switch(prev); -+} -+ -+/* -+ * nr_running, nr_uninterruptible and nr_context_switches: -+ * -+ * externally visible scheduler statistics: current number of runnable -+ * threads, total number of context switches performed since bootup. -+ */ -+unsigned long nr_running(void) -+{ -+ unsigned long i, sum = 0; -+ -+ for_each_online_cpu(i) -+ sum += cpu_rq(i)->nr_running; -+ -+ return sum; -+} -+ -+static unsigned long nr_uninterruptible(void) -+{ -+ unsigned long i, sum = 0; -+ -+ for_each_online_cpu(i) -+ sum += cpu_rq(i)->nr_uninterruptible; -+ -+ return sum; -+} -+ -+/* -+ * Check if only the current task is running on the CPU. -+ * -+ * Caution: this function does not check that the caller has disabled -+ * preemption, thus the result might have a time-of-check-to-time-of-use -+ * race. The caller is responsible to use it correctly, for example: -+ * -+ * - from a non-preemptable section (of course) -+ * -+ * - from a thread that is bound to a single CPU -+ * -+ * - in a loop with very short iterations (e.g. a polling loop) -+ */ -+bool single_task_running(void) -+{ -+ struct rq *rq = cpu_rq(smp_processor_id()); -+ -+ if (rq_load(rq) == 1) -+ return true; -+ else -+ return false; -+} -+EXPORT_SYMBOL(single_task_running); -+ -+unsigned long long nr_context_switches(void) -+{ -+ int i; -+ unsigned long long sum = 0; -+ -+ for_each_possible_cpu(i) -+ sum += cpu_rq(i)->nr_switches; -+ -+ return sum; -+} -+ -+/* -+ * IO-wait accounting, and how its mostly bollocks (on SMP). -+ * -+ * The idea behind IO-wait account is to account the idle time that we could -+ * have spend running if it were not for IO. That is, if we were to improve the -+ * storage performance, we'd have a proportional reduction in IO-wait time. -+ * -+ * This all works nicely on UP, where, when a task blocks on IO, we account -+ * idle time as IO-wait, because if the storage were faster, it could've been -+ * running and we'd not be idle. -+ * -+ * This has been extended to SMP, by doing the same for each CPU. This however -+ * is broken. -+ * -+ * Imagine for instance the case where two tasks block on one CPU, only the one -+ * CPU will have IO-wait accounted, while the other has regular idle. Even -+ * though, if the storage were faster, both could've ran at the same time, -+ * utilising both CPUs. -+ * -+ * This means, that when looking globally, the current IO-wait accounting on -+ * SMP is a lower bound, by reason of under accounting. -+ * -+ * Worse, since the numbers are provided per CPU, they are sometimes -+ * interpreted per CPU, and that is nonsensical. A blocked task isn't strictly -+ * associated with any one particular CPU, it can wake to another CPU than it -+ * blocked on. This means the per CPU IO-wait number is meaningless. -+ * -+ * Task CPU affinities can make all that even more 'interesting'. -+ */ -+ -+unsigned long nr_iowait(void) -+{ -+ unsigned long i, sum = 0; -+ -+ for_each_possible_cpu(i) -+ sum += atomic_read(&cpu_rq(i)->nr_iowait); -+ -+ return sum; -+} -+ -+/* -+ * Consumers of these two interfaces, like for example the cpufreq menu -+ * governor are using nonsensical data. Boosting frequency for a CPU that has -+ * IO-wait which might not even end up running the task when it does become -+ * runnable. -+ */ -+ -+unsigned long nr_iowait_cpu(int cpu) -+{ -+ struct rq *this = cpu_rq(cpu); -+ return atomic_read(&this->nr_iowait); -+} -+ -+unsigned long nr_active(void) -+{ -+ return nr_running() + nr_uninterruptible(); -+} -+ -+/* -+ * I/O wait is the number of running or queued tasks with their ->rq pointer -+ * set to this cpu as being the CPU they're more likely to run on. -+ */ -+void get_iowait_load(unsigned long *nr_waiters, unsigned long *load) -+{ -+ struct rq *rq = this_rq(); -+ -+ *nr_waiters = atomic_read(&rq->nr_iowait); -+ *load = rq_load(rq); -+} -+ -+/* Variables and functions for calc_load */ -+static unsigned long calc_load_update; -+unsigned long avenrun[3]; -+EXPORT_SYMBOL(avenrun); -+ -+/** -+ * get_avenrun - get the load average array -+ * @loads: pointer to dest load array -+ * @offset: offset to add -+ * @shift: shift count to shift the result left -+ * -+ * These values are estimates at best, so no need for locking. -+ */ -+void get_avenrun(unsigned long *loads, unsigned long offset, int shift) -+{ -+ loads[0] = (avenrun[0] + offset) << shift; -+ loads[1] = (avenrun[1] + offset) << shift; -+ loads[2] = (avenrun[2] + offset) << shift; -+} -+ -+static unsigned long -+calc_load(unsigned long load, unsigned long exp, unsigned long active) -+{ -+ unsigned long newload; -+ -+ newload = load * exp + active * (FIXED_1 - exp); -+ if (active >= load) -+ newload += FIXED_1-1; -+ -+ return newload / FIXED_1; -+} -+ -+/* -+ * calc_load - update the avenrun load estimates every LOAD_FREQ seconds. -+ */ -+void calc_global_load(unsigned long ticks) -+{ -+ long active; -+ -+ if (time_before(jiffies, READ_ONCE(calc_load_update))) -+ return; -+ active = nr_active() * FIXED_1; -+ -+ avenrun[0] = calc_load(avenrun[0], EXP_1, active); -+ avenrun[1] = calc_load(avenrun[1], EXP_5, active); -+ avenrun[2] = calc_load(avenrun[2], EXP_15, active); -+ -+ calc_load_update = jiffies + LOAD_FREQ; -+} -+ -+DEFINE_PER_CPU(struct kernel_stat, kstat); -+DEFINE_PER_CPU(struct kernel_cpustat, kernel_cpustat); -+ -+EXPORT_PER_CPU_SYMBOL(kstat); -+EXPORT_PER_CPU_SYMBOL(kernel_cpustat); -+ -+#ifdef CONFIG_PARAVIRT -+static inline u64 steal_ticks(u64 steal) -+{ -+ if (unlikely(steal > NSEC_PER_SEC)) -+ return div_u64(steal, TICK_NSEC); -+ -+ return __iter_div_u64_rem(steal, TICK_NSEC, &steal); -+} -+#endif -+ -+#ifndef nsecs_to_cputime -+# define nsecs_to_cputime(__nsecs) nsecs_to_jiffies(__nsecs) -+#endif -+ -+/* -+ * On each tick, add the number of nanoseconds to the unbanked variables and -+ * once one tick's worth has accumulated, account it allowing for accurate -+ * sub-tick accounting and totals. Use the TICK_APPROX_NS to match the way we -+ * deduct nanoseconds. -+ */ -+static void pc_idle_time(struct rq *rq, struct task_struct *idle, unsigned long ns) -+{ -+ u64 *cpustat = kcpustat_this_cpu->cpustat; -+ unsigned long ticks; -+ -+ if (atomic_read(&rq->nr_iowait) > 0) { -+ rq->iowait_ns += ns; -+ if (rq->iowait_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->iowait_ns); -+ cpustat[CPUTIME_IOWAIT] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->iowait_ns %= JIFFY_NS; -+ } -+ } else { -+ rq->idle_ns += ns; -+ if (rq->idle_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->idle_ns); -+ cpustat[CPUTIME_IDLE] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->idle_ns %= JIFFY_NS; -+ } -+ } -+ acct_update_integrals(idle); -+} -+ -+static void pc_system_time(struct rq *rq, struct task_struct *p, -+ int hardirq_offset, unsigned long ns) -+{ -+ u64 *cpustat = kcpustat_this_cpu->cpustat; -+ unsigned long ticks; -+ -+ p->stime_ns += ns; -+ if (p->stime_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(p->stime_ns); -+ p->stime_ns %= JIFFY_NS; -+ p->stime += (__force u64)TICK_APPROX_NS * ticks; -+ account_group_system_time(p, TICK_APPROX_NS * ticks); -+ } -+ p->sched_time += ns; -+ account_group_exec_runtime(p, ns); -+ -+ if (hardirq_count() - hardirq_offset) { -+ rq->irq_ns += ns; -+ if (rq->irq_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->irq_ns); -+ cpustat[CPUTIME_IRQ] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->irq_ns %= JIFFY_NS; -+ } -+ } else if (in_serving_softirq()) { -+ rq->softirq_ns += ns; -+ if (rq->softirq_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->softirq_ns); -+ cpustat[CPUTIME_SOFTIRQ] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->softirq_ns %= JIFFY_NS; -+ } -+ } else { -+ rq->system_ns += ns; -+ if (rq->system_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->system_ns); -+ cpustat[CPUTIME_SYSTEM] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->system_ns %= JIFFY_NS; -+ } -+ } -+ acct_update_integrals(p); -+} -+ -+static void pc_user_time(struct rq *rq, struct task_struct *p, unsigned long ns) -+{ -+ u64 *cpustat = kcpustat_this_cpu->cpustat; -+ unsigned long ticks; -+ -+ p->utime_ns += ns; -+ if (p->utime_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(p->utime_ns); -+ p->utime_ns %= JIFFY_NS; -+ p->utime += (__force u64)TICK_APPROX_NS * ticks; -+ account_group_user_time(p, TICK_APPROX_NS * ticks); -+ } -+ p->sched_time += ns; -+ account_group_exec_runtime(p, ns); -+ -+ if (this_cpu_ksoftirqd() == p) { -+ /* -+ * ksoftirqd time do not get accounted in cpu_softirq_time. -+ * So, we have to handle it separately here. -+ */ -+ rq->softirq_ns += ns; -+ if (rq->softirq_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->softirq_ns); -+ cpustat[CPUTIME_SOFTIRQ] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->softirq_ns %= JIFFY_NS; -+ } -+ } -+ -+ if (task_nice(p) > 0 || idleprio_task(p)) { -+ rq->nice_ns += ns; -+ if (rq->nice_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->nice_ns); -+ cpustat[CPUTIME_NICE] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->nice_ns %= JIFFY_NS; -+ } -+ } else { -+ rq->user_ns += ns; -+ if (rq->user_ns >= JIFFY_NS) { -+ ticks = NS_TO_JIFFIES(rq->user_ns); -+ cpustat[CPUTIME_USER] += (__force u64)TICK_APPROX_NS * ticks; -+ rq->user_ns %= JIFFY_NS; -+ } -+ } -+ acct_update_integrals(p); -+} -+ -+/* -+ * This is called on clock ticks. -+ * Bank in p->sched_time the ns elapsed since the last tick or switch. -+ * CPU scheduler quota accounting is also performed here in microseconds. -+ */ -+static void update_cpu_clock_tick(struct rq *rq, struct task_struct *p) -+{ -+ s64 account_ns = rq->niffies - p->last_ran; -+ struct task_struct *idle = rq->idle; -+ -+ /* Accurate tick timekeeping */ -+ if (user_mode(get_irq_regs())) -+ pc_user_time(rq, p, account_ns); -+ else if (p != idle || (irq_count() != HARDIRQ_OFFSET)) { -+ pc_system_time(rq, p, HARDIRQ_OFFSET, account_ns); -+ } else -+ pc_idle_time(rq, idle, account_ns); -+ -+ /* time_slice accounting is done in usecs to avoid overflow on 32bit */ -+ if (p->policy != SCHED_FIFO && p != idle) -+ p->time_slice -= NS_TO_US(account_ns); -+ -+ p->last_ran = rq->niffies; -+} -+ -+/* -+ * This is called on context switches. -+ * Bank in p->sched_time the ns elapsed since the last tick or switch. -+ * CPU scheduler quota accounting is also performed here in microseconds. -+ */ -+static void update_cpu_clock_switch(struct rq *rq, struct task_struct *p) -+{ -+ s64 account_ns = rq->niffies - p->last_ran; -+ struct task_struct *idle = rq->idle; -+ -+ /* Accurate subtick timekeeping */ -+ if (p != idle) -+ pc_user_time(rq, p, account_ns); -+ else -+ pc_idle_time(rq, idle, account_ns); -+ -+ /* time_slice accounting is done in usecs to avoid overflow on 32bit */ -+ if (p->policy != SCHED_FIFO && p != idle) -+ p->time_slice -= NS_TO_US(account_ns); -+} -+ -+/* -+ * Return any ns on the sched_clock that have not yet been accounted in -+ * @p in case that task is currently running. -+ * -+ * Called with task_rq_lock(p) held. -+ */ -+static inline u64 do_task_delta_exec(struct task_struct *p, struct rq *rq) -+{ -+ u64 ns = 0; -+ -+ /* -+ * Must be ->curr _and_ ->on_rq. If dequeued, we would -+ * project cycles that may never be accounted to this -+ * thread, breaking clock_gettime(). -+ */ -+ if (p == rq->curr && task_on_rq_queued(p)) { -+ update_clocks(rq); -+ ns = rq->niffies - p->last_ran; -+ } -+ -+ return ns; -+} -+ -+/* -+ * Return accounted runtime for the task. -+ * Return separately the current's pending runtime that have not been -+ * accounted yet. -+ * -+ */ -+unsigned long long task_sched_runtime(struct task_struct *p) -+{ -+ unsigned long flags; -+ struct rq *rq; -+ u64 ns; -+ -+#if defined(CONFIG_64BIT) && defined(CONFIG_SMP) -+ /* -+ * 64-bit doesn't need locks to atomically read a 64-bit value. -+ * So we have a optimisation chance when the task's delta_exec is 0. -+ * Reading ->on_cpu is racy, but this is ok. -+ * -+ * If we race with it leaving CPU, we'll take a lock. So we're correct. -+ * If we race with it entering CPU, unaccounted time is 0. This is -+ * indistinguishable from the read occurring a few cycles earlier. -+ * If we see ->on_cpu without ->on_rq, the task is leaving, and has -+ * been accounted, so we're correct here as well. -+ */ -+ if (!p->on_cpu || !task_on_rq_queued(p)) -+ return tsk_seruntime(p); -+#endif -+ -+ rq = task_rq_lock(p, &flags); -+ ns = p->sched_time + do_task_delta_exec(p, rq); -+ task_rq_unlock(rq, p, &flags); -+ -+ return ns; -+} -+ -+/* -+ * Functions to test for when SCHED_ISO tasks have used their allocated -+ * quota as real time scheduling and convert them back to SCHED_NORMAL. All -+ * data is modified only by the local runqueue during scheduler_tick with -+ * interrupts disabled. -+ */ -+ -+/* -+ * Test if SCHED_ISO tasks have run longer than their alloted period as RT -+ * tasks and set the refractory flag if necessary. There is 10% hysteresis -+ * for unsetting the flag. 115/128 is ~90/100 as a fast shift instead of a -+ * slow division. -+ */ -+static inline void iso_tick(struct rq *rq) -+{ -+ rq->iso_ticks = rq->iso_ticks * (ISO_PERIOD - 1) / ISO_PERIOD; -+ rq->iso_ticks += 100; -+ if (rq->iso_ticks > ISO_PERIOD * sched_iso_cpu) { -+ rq->iso_refractory = true; -+ if (unlikely(rq->iso_ticks > ISO_PERIOD * 100)) -+ rq->iso_ticks = ISO_PERIOD * 100; -+ } -+} -+ -+/* No SCHED_ISO task was running so decrease rq->iso_ticks */ -+static inline void no_iso_tick(struct rq *rq, int ticks) -+{ -+ if (rq->iso_ticks > 0 || rq->iso_refractory) { -+ rq->iso_ticks = rq->iso_ticks * (ISO_PERIOD - ticks) / ISO_PERIOD; -+ if (rq->iso_ticks < ISO_PERIOD * (sched_iso_cpu * 115 / 128)) { -+ rq->iso_refractory = false; -+ if (unlikely(rq->iso_ticks < 0)) -+ rq->iso_ticks = 0; -+ } -+ } -+} -+ -+/* This manages tasks that have run out of timeslice during a scheduler_tick */ -+static void task_running_tick(struct rq *rq) -+{ -+ struct task_struct *p = rq->curr; -+ -+ /* -+ * If a SCHED_ISO task is running we increment the iso_ticks. In -+ * order to prevent SCHED_ISO tasks from causing starvation in the -+ * presence of true RT tasks we account those as iso_ticks as well. -+ */ -+ if (rt_task(p) || task_running_iso(p)) -+ iso_tick(rq); -+ else -+ no_iso_tick(rq, 1); -+ -+ /* SCHED_FIFO tasks never run out of timeslice. */ -+ if (p->policy == SCHED_FIFO) -+ return; -+ -+ if (iso_task(p)) { -+ if (task_running_iso(p)) { -+ if (rq->iso_refractory) { -+ /* -+ * SCHED_ISO task is running as RT and limit -+ * has been hit. Force it to reschedule as -+ * SCHED_NORMAL by zeroing its time_slice -+ */ -+ p->time_slice = 0; -+ } -+ } else if (!rq->iso_refractory) { -+ /* Can now run again ISO. Reschedule to pick up prio */ -+ goto out_resched; -+ } -+ } -+ -+ /* -+ * Tasks that were scheduled in the first half of a tick are not -+ * allowed to run into the 2nd half of the next tick if they will -+ * run out of time slice in the interim. Otherwise, if they have -+ * less than RESCHED_US μs of time slice left they will be rescheduled. -+ * Dither is used as a backup for when hrexpiry is disabled or high res -+ * timers not configured in. -+ */ -+ if (p->time_slice - rq->dither >= RESCHED_US) -+ return; -+out_resched: -+ rq_lock(rq); -+ __set_tsk_resched(p); -+ rq_unlock(rq); -+} -+ -+static inline void task_tick(struct rq *rq) -+{ -+ if (!rq_idle(rq)) -+ task_running_tick(rq); -+ else if (rq->last_jiffy > rq->last_scheduler_tick) -+ no_iso_tick(rq, rq->last_jiffy - rq->last_scheduler_tick); -+} -+ -+#ifdef CONFIG_NO_HZ_FULL -+/* -+ * We can stop the timer tick any time highres timers are active since -+ * we rely entirely on highres timeouts for task expiry rescheduling. -+ */ -+static void sched_stop_tick(struct rq *rq, int cpu) -+{ -+ if (!hrexpiry_enabled(rq)) -+ return; -+ if (!tick_nohz_full_enabled()) -+ return; -+ if (!tick_nohz_full_cpu(cpu)) -+ return; -+ tick_nohz_dep_clear_cpu(cpu, TICK_DEP_BIT_SCHED); -+} -+ -+static inline void sched_start_tick(struct rq *rq, int cpu) -+{ -+ tick_nohz_dep_set_cpu(cpu, TICK_DEP_BIT_SCHED); -+} -+ -+struct tick_work { -+ int cpu; -+ struct delayed_work work; -+}; -+ -+static struct tick_work __percpu *tick_work_cpu; -+ -+static void sched_tick_remote(struct work_struct *work) -+{ -+ struct delayed_work *dwork = to_delayed_work(work); -+ struct tick_work *twork = container_of(dwork, struct tick_work, work); -+ int cpu = twork->cpu; -+ struct rq *rq = cpu_rq(cpu); -+ struct task_struct *curr; -+ u64 delta; -+ -+ /* -+ * Handle the tick only if it appears the remote CPU is running in full -+ * dynticks mode. The check is racy by nature, but missing a tick or -+ * having one too much is no big deal because the scheduler tick updates -+ * statistics and checks timeslices in a time-independent way, regardless -+ * of when exactly it is running. -+ */ -+ if (idle_cpu(cpu) || !tick_nohz_tick_stopped_cpu(cpu)) -+ goto out_requeue; -+ -+ rq_lock_irq(rq); -+ curr = rq->curr; -+ if (is_idle_task(curr)) -+ goto out_unlock; -+ -+ update_rq_clock(rq); -+ delta = rq_clock_task(rq) - curr->last_ran; -+ -+ /* -+ * Make sure the next tick runs within a reasonable -+ * amount of time. -+ */ -+ WARN_ON_ONCE(delta > (u64)NSEC_PER_SEC * 3); -+ task_tick(rq); -+ -+out_unlock: -+ rq_unlock_irq(rq); -+ -+out_requeue: -+ /* -+ * Run the remote tick once per second (1Hz). This arbitrary -+ * frequency is large enough to avoid overload but short enough -+ * to keep scheduler internal stats reasonably up to date. -+ */ -+ queue_delayed_work(system_unbound_wq, dwork, HZ); -+} -+ -+static void sched_tick_start(int cpu) -+{ -+ struct tick_work *twork; -+ -+ if (housekeeping_cpu(cpu, HK_FLAG_TICK)) -+ return; -+ -+ WARN_ON_ONCE(!tick_work_cpu); -+ -+ twork = per_cpu_ptr(tick_work_cpu, cpu); -+ twork->cpu = cpu; -+ INIT_DELAYED_WORK(&twork->work, sched_tick_remote); -+ queue_delayed_work(system_unbound_wq, &twork->work, HZ); -+} -+ -+#ifdef CONFIG_HOTPLUG_CPU -+static void sched_tick_stop(int cpu) -+{ -+ struct tick_work *twork; -+ -+ if (housekeeping_cpu(cpu, HK_FLAG_TICK)) -+ return; -+ -+ WARN_ON_ONCE(!tick_work_cpu); -+ -+ twork = per_cpu_ptr(tick_work_cpu, cpu); -+ cancel_delayed_work_sync(&twork->work); -+} -+#endif /* CONFIG_HOTPLUG_CPU */ -+ -+int __init sched_tick_offload_init(void) -+{ -+ tick_work_cpu = alloc_percpu(struct tick_work); -+ BUG_ON(!tick_work_cpu); -+ -+ return 0; -+} -+ -+#else /* !CONFIG_NO_HZ_FULL */ -+static inline void sched_stop_tick(struct rq *rq, int cpu) {} -+static inline void sched_start_tick(struct rq *rq, int cpu) {} -+static inline void sched_tick_start(int cpu) { } -+static inline void sched_tick_stop(int cpu) { } -+#endif -+ -+/* -+ * This function gets called by the timer code, with HZ frequency. -+ * We call it with interrupts disabled. -+ */ -+void scheduler_tick(void) -+{ -+ int cpu __maybe_unused = smp_processor_id(); -+ struct rq *rq = cpu_rq(cpu); -+ -+ sched_clock_tick(); -+ update_clocks(rq); -+ update_load_avg(rq, 0); -+ update_cpu_clock_tick(rq, rq->curr); -+ task_tick(rq); -+ rq->last_scheduler_tick = rq->last_jiffy; -+ rq->last_tick = rq->clock; -+ perf_event_task_tick(); -+ sched_stop_tick(rq, cpu); -+} -+ -+#if defined(CONFIG_PREEMPT) && (defined(CONFIG_DEBUG_PREEMPT) || \ -+ defined(CONFIG_TRACE_PREEMPT_TOGGLE)) -+/* -+ * If the value passed in is equal to the current preempt count -+ * then we just disabled preemption. Start timing the latency. -+ */ -+static inline void preempt_latency_start(int val) -+{ -+ if (preempt_count() == val) { -+ unsigned long ip = get_lock_parent_ip(); -+#ifdef CONFIG_DEBUG_PREEMPT -+ current->preempt_disable_ip = ip; -+#endif -+ trace_preempt_off(CALLER_ADDR0, ip); -+ } -+} -+ -+void preempt_count_add(int val) -+{ -+#ifdef CONFIG_DEBUG_PREEMPT -+ /* -+ * Underflow? -+ */ -+ if (DEBUG_LOCKS_WARN_ON((preempt_count() < 0))) -+ return; -+#endif -+ __preempt_count_add(val); -+#ifdef CONFIG_DEBUG_PREEMPT -+ /* -+ * Spinlock count overflowing soon? -+ */ -+ DEBUG_LOCKS_WARN_ON((preempt_count() & PREEMPT_MASK) >= -+ PREEMPT_MASK - 10); -+#endif -+ preempt_latency_start(val); -+} -+EXPORT_SYMBOL(preempt_count_add); -+NOKPROBE_SYMBOL(preempt_count_add); -+ -+/* -+ * If the value passed in equals to the current preempt count -+ * then we just enabled preemption. Stop timing the latency. -+ */ -+static inline void preempt_latency_stop(int val) -+{ -+ if (preempt_count() == val) -+ trace_preempt_on(CALLER_ADDR0, get_lock_parent_ip()); -+} -+ -+void preempt_count_sub(int val) -+{ -+#ifdef CONFIG_DEBUG_PREEMPT -+ /* -+ * Underflow? -+ */ -+ if (DEBUG_LOCKS_WARN_ON(val > preempt_count())) -+ return; -+ /* -+ * Is the spinlock portion underflowing? -+ */ -+ if (DEBUG_LOCKS_WARN_ON((val < PREEMPT_MASK) && -+ !(preempt_count() & PREEMPT_MASK))) -+ return; -+#endif -+ -+ preempt_latency_stop(val); -+ __preempt_count_sub(val); -+} -+EXPORT_SYMBOL(preempt_count_sub); -+NOKPROBE_SYMBOL(preempt_count_sub); -+ -+#else -+static inline void preempt_latency_start(int val) { } -+static inline void preempt_latency_stop(int val) { } -+#endif -+ -+static inline unsigned long get_preempt_disable_ip(struct task_struct *p) -+{ -+#ifdef CONFIG_DEBUG_PREEMPT -+ return p->preempt_disable_ip; -+#else -+ return 0; -+#endif -+} -+ -+/* -+ * The time_slice is only refilled when it is empty and that is when we set a -+ * new deadline. Make sure update_clocks has been called recently to update -+ * rq->niffies. -+ */ -+static void time_slice_expired(struct task_struct *p, struct rq *rq) -+{ -+ p->time_slice = timeslice(); -+ p->deadline = rq->niffies + task_deadline_diff(p); -+#ifdef CONFIG_SMT_NICE -+ if (!p->mm) -+ p->smt_bias = 0; -+ else if (rt_task(p)) -+ p->smt_bias = 1 << 30; -+ else if (task_running_iso(p)) -+ p->smt_bias = 1 << 29; -+ else if (idleprio_task(p)) { -+ if (task_running_idle(p)) -+ p->smt_bias = 0; -+ else -+ p->smt_bias = 1; -+ } else if (--p->smt_bias < 1) -+ p->smt_bias = MAX_PRIO - p->static_prio; -+#endif -+} -+ -+/* -+ * Timeslices below RESCHED_US are considered as good as expired as there's no -+ * point rescheduling when there's so little time left. SCHED_BATCH tasks -+ * have been flagged be not latency sensitive and likely to be fully CPU -+ * bound so every time they're rescheduled they have their time_slice -+ * refilled, but get a new later deadline to have little effect on -+ * SCHED_NORMAL tasks. -+ -+ */ -+static inline void check_deadline(struct task_struct *p, struct rq *rq) -+{ -+ if (p->time_slice < RESCHED_US || batch_task(p)) -+ time_slice_expired(p, rq); -+} -+ -+/* -+ * Task selection with skiplists is a simple matter of picking off the first -+ * task in the sorted list, an O(1) operation. The lookup is amortised O(1) -+ * being bound to the number of processors. -+ * -+ * Runqueues are selectively locked based on their unlocked data and then -+ * unlocked if not needed. At most 3 locks will be held at any time and are -+ * released as soon as they're no longer needed. All balancing between CPUs -+ * is thus done here in an extremely simple first come best fit manner. -+ * -+ * This iterates over runqueues in cache locality order. In interactive mode -+ * it iterates over all CPUs and finds the task with the best key/deadline. -+ * In non-interactive mode it will only take a task if it's from the current -+ * runqueue or a runqueue with more tasks than the current one with a better -+ * key/deadline. -+ */ -+#ifdef CONFIG_SMP -+static inline struct task_struct -+*earliest_deadline_task(struct rq *rq, int cpu, struct task_struct *idle) -+{ -+ struct rq *locked = NULL, *chosen = NULL; -+ struct task_struct *edt = idle; -+ int i, best_entries = 0; -+ u64 best_key = ~0ULL; -+ -+ for (i = 0; i < total_runqueues; i++) { -+ struct rq *other_rq = rq_order(rq, i); -+ skiplist_node *next; -+ int entries; -+ -+ entries = other_rq->sl->entries; -+ /* -+ * Check for queued entres lockless first. The local runqueue -+ * is locked so entries will always be accurate. -+ */ -+ if (!sched_interactive) { -+ /* -+ * Don't reschedule balance across nodes unless the CPU -+ * is idle. -+ */ -+ if (edt != idle && rq->cpu_locality[other_rq->cpu] > 3) -+ break; -+ if (entries <= best_entries) -+ continue; -+ } else if (!entries) -+ continue; -+ -+ /* if (i) implies other_rq != rq */ -+ if (i) { -+ /* Check for best id queued lockless first */ -+ if (other_rq->best_key >= best_key) -+ continue; -+ -+ if (unlikely(!trylock_rq(rq, other_rq))) -+ continue; -+ -+ /* Need to reevaluate entries after locking */ -+ entries = other_rq->sl->entries; -+ if (unlikely(!entries)) { -+ unlock_rq(other_rq); -+ continue; -+ } -+ } -+ -+ next = other_rq->node; -+ /* -+ * In interactive mode we check beyond the best entry on other -+ * runqueues if we can't get the best for smt or affinity -+ * reasons. -+ */ -+ while ((next = next->next[0]) != other_rq->node) { -+ struct task_struct *p; -+ u64 key = next->key; -+ -+ /* Reevaluate key after locking */ -+ if (key >= best_key) -+ break; -+ -+ p = next->value; -+ if (!smt_schedule(p, rq)) { -+ if (i && !sched_interactive) -+ break; -+ continue; -+ } -+ -+ if (sched_other_cpu(p, cpu)) { -+ if (sched_interactive || !i) -+ continue; -+ break; -+ } -+ /* Make sure affinity is ok */ -+ if (i) { -+ /* From this point on p is the best so far */ -+ if (locked) -+ unlock_rq(locked); -+ chosen = locked = other_rq; -+ } -+ best_entries = entries; -+ best_key = key; -+ edt = p; -+ break; -+ } -+ /* rq->preempting is a hint only as the state may have changed -+ * since it was set with the resched call but if we have met -+ * the condition we can break out here. */ -+ if (edt == rq->preempting) -+ break; -+ if (i && other_rq != chosen) -+ unlock_rq(other_rq); -+ } -+ -+ if (likely(edt != idle)) -+ take_task(rq, cpu, edt); -+ -+ if (locked) -+ unlock_rq(locked); -+ -+ rq->preempting = NULL; -+ -+ return edt; -+} -+#else /* CONFIG_SMP */ -+static inline struct task_struct -+*earliest_deadline_task(struct rq *rq, int cpu, struct task_struct *idle) -+{ -+ struct task_struct *edt; -+ -+ if (unlikely(!rq->sl->entries)) -+ return idle; -+ edt = rq->node->next[0]->value; -+ take_task(rq, cpu, edt); -+ return edt; -+} -+#endif /* CONFIG_SMP */ -+ -+/* -+ * Print scheduling while atomic bug: -+ */ -+static noinline void __schedule_bug(struct task_struct *prev) -+{ -+ /* Save this before calling printk(), since that will clobber it */ -+ unsigned long preempt_disable_ip = get_preempt_disable_ip(current); -+ -+ if (oops_in_progress) -+ return; -+ -+ printk(KERN_ERR "BUG: scheduling while atomic: %s/%d/0x%08x\n", -+ prev->comm, prev->pid, preempt_count()); -+ -+ debug_show_held_locks(prev); -+ print_modules(); -+ if (irqs_disabled()) -+ print_irqtrace_events(prev); -+ if (IS_ENABLED(CONFIG_DEBUG_PREEMPT) -+ && in_atomic_preempt_off()) { -+ pr_err("Preemption disabled at:"); -+ print_ip_sym(preempt_disable_ip); -+ pr_cont("\n"); -+ } -+ dump_stack(); -+ add_taint(TAINT_WARN, LOCKDEP_STILL_OK); -+} -+ -+/* -+ * Various schedule()-time debugging checks and statistics: -+ */ -+static inline void schedule_debug(struct task_struct *prev) -+{ -+#ifdef CONFIG_SCHED_STACK_END_CHECK -+ if (task_stack_end_corrupted(prev)) -+ panic("corrupted stack end detected inside scheduler\n"); -+#endif -+ -+ if (unlikely(in_atomic_preempt_off())) { -+ __schedule_bug(prev); -+ preempt_count_set(PREEMPT_DISABLED); -+ } -+ rcu_sleep_check(); -+ -+ profile_hit(SCHED_PROFILING, __builtin_return_address(0)); -+ -+ schedstat_inc(this_rq()->sched_count); -+} -+ -+/* -+ * The currently running task's information is all stored in rq local data -+ * which is only modified by the local CPU. -+ */ -+static inline void set_rq_task(struct rq *rq, struct task_struct *p) -+{ -+ if (p == rq->idle || p->policy == SCHED_FIFO) -+ hrexpiry_clear(rq); -+ else -+ hrexpiry_start(rq, US_TO_NS(p->time_slice)); -+ if (rq->clock - rq->last_tick > HALF_JIFFY_NS) -+ rq->dither = 0; -+ else -+ rq->dither = rq_dither(rq); -+ -+ rq->rq_deadline = p->deadline; -+ rq->rq_prio = p->prio; -+#ifdef CONFIG_SMT_NICE -+ rq->rq_mm = p->mm; -+ rq->rq_smt_bias = p->smt_bias; -+#endif -+} -+ -+#ifdef CONFIG_SMT_NICE -+static void check_no_siblings(struct rq __maybe_unused *this_rq) {} -+static void wake_no_siblings(struct rq __maybe_unused *this_rq) {} -+static void (*check_siblings)(struct rq *this_rq) = &check_no_siblings; -+static void (*wake_siblings)(struct rq *this_rq) = &wake_no_siblings; -+ -+/* Iterate over smt siblings when we've scheduled a process on cpu and decide -+ * whether they should continue running or be descheduled. */ -+static void check_smt_siblings(struct rq *this_rq) -+{ -+ int other_cpu; -+ -+ for_each_cpu(other_cpu, &this_rq->thread_mask) { -+ struct task_struct *p; -+ struct rq *rq; -+ -+ rq = cpu_rq(other_cpu); -+ if (rq_idle(rq)) -+ continue; -+ p = rq->curr; -+ if (!smt_schedule(p, this_rq)) -+ resched_curr(rq); -+ } -+} -+ -+static void wake_smt_siblings(struct rq *this_rq) -+{ -+ int other_cpu; -+ -+ for_each_cpu(other_cpu, &this_rq->thread_mask) { -+ struct rq *rq; -+ -+ rq = cpu_rq(other_cpu); -+ if (rq_idle(rq)) -+ resched_idle(rq); -+ } -+} -+#else -+static void check_siblings(struct rq __maybe_unused *this_rq) {} -+static void wake_siblings(struct rq __maybe_unused *this_rq) {} -+#endif -+ -+/* -+ * schedule() is the main scheduler function. -+ * -+ * The main means of driving the scheduler and thus entering this function are: -+ * -+ * 1. Explicit blocking: mutex, semaphore, waitqueue, etc. -+ * -+ * 2. TIF_NEED_RESCHED flag is checked on interrupt and userspace return -+ * paths. For example, see arch/x86/entry_64.S. -+ * -+ * To drive preemption between tasks, the scheduler sets the flag in timer -+ * interrupt handler scheduler_tick(). -+ * -+ * 3. Wakeups don't really cause entry into schedule(). They add a -+ * task to the run-queue and that's it. -+ * -+ * Now, if the new task added to the run-queue preempts the current -+ * task, then the wakeup sets TIF_NEED_RESCHED and schedule() gets -+ * called on the nearest possible occasion: -+ * -+ * - If the kernel is preemptible (CONFIG_PREEMPT=y): -+ * -+ * - in syscall or exception context, at the next outmost -+ * preempt_enable(). (this might be as soon as the wake_up()'s -+ * spin_unlock()!) -+ * -+ * - in IRQ context, return from interrupt-handler to -+ * preemptible context -+ * -+ * - If the kernel is not preemptible (CONFIG_PREEMPT is not set) -+ * then at the next: -+ * -+ * - cond_resched() call -+ * - explicit schedule() call -+ * - return from syscall or exception to user-space -+ * - return from interrupt-handler to user-space -+ * -+ * WARNING: must be called with preemption disabled! -+ */ -+static void __sched notrace __schedule(bool preempt) -+{ -+ struct task_struct *prev, *next, *idle; -+ unsigned long *switch_count; -+ bool deactivate = false; -+ struct rq *rq; -+ u64 niffies; -+ int cpu; -+ -+ cpu = smp_processor_id(); -+ rq = cpu_rq(cpu); -+ prev = rq->curr; -+ idle = rq->idle; -+ -+ schedule_debug(prev); -+ -+ local_irq_disable(); -+ rcu_note_context_switch(preempt); -+ -+ /* -+ * Make sure that signal_pending_state()->signal_pending() below -+ * can't be reordered with __set_current_state(TASK_INTERRUPTIBLE) -+ * done by the caller to avoid the race with signal_wake_up(). -+ * -+ * The membarrier system call requires a full memory barrier -+ * after coming from user-space, before storing to rq->curr. -+ */ -+ rq_lock(rq); -+ smp_mb__after_spinlock(); -+#ifdef CONFIG_SMP -+ if (rq->preempt) { -+ /* -+ * Make sure resched_curr hasn't triggered a preemption -+ * locklessly on a task that has since scheduled away. Spurious -+ * wakeup of idle is okay though. -+ */ -+ if (unlikely(preempt && prev != idle && !test_tsk_need_resched(prev))) { -+ rq->preempt = NULL; -+ clear_preempt_need_resched(); -+ rq_unlock_irq(rq); -+ return; -+ } -+ rq->preempt = NULL; -+ } -+#endif -+ -+ switch_count = &prev->nivcsw; -+ if (!preempt && prev->state) { -+ if (unlikely(signal_pending_state(prev->state, prev))) { -+ prev->state = TASK_RUNNING; -+ } else { -+ deactivate = true; -+ prev->on_rq = 0; -+ -+ if (prev->in_iowait) { -+ atomic_inc(&rq->nr_iowait); -+ delayacct_blkio_start(); -+ } -+ -+ /* -+ * If a worker is going to sleep, notify and -+ * ask workqueue whether it wants to wake up a -+ * task to maintain concurrency. If so, wake -+ * up the task. -+ */ -+ if (prev->flags & PF_WQ_WORKER) { -+ struct task_struct *to_wakeup; -+ -+ to_wakeup = wq_worker_sleeping(prev); -+ if (to_wakeup) -+ try_to_wake_up_local(to_wakeup); -+ } -+ } -+ switch_count = &prev->nvcsw; -+ } -+ -+ /* -+ * Store the niffy value here for use by the next task's last_ran -+ * below to avoid losing niffies due to update_clocks being called -+ * again after this point. -+ */ -+ update_clocks(rq); -+ niffies = rq->niffies; -+ update_cpu_clock_switch(rq, prev); -+ -+ clear_tsk_need_resched(prev); -+ clear_preempt_need_resched(); -+ -+ if (idle != prev) { -+ check_deadline(prev, rq); -+ return_task(prev, rq, cpu, deactivate); -+ } -+ -+ next = earliest_deadline_task(rq, cpu, idle); -+ if (likely(next->prio != PRIO_LIMIT)) -+ clear_cpuidle_map(cpu); -+ else { -+ set_cpuidle_map(cpu); -+ update_load_avg(rq, 0); -+ } -+ -+ set_rq_task(rq, next); -+ next->last_ran = niffies; -+ -+ if (likely(prev != next)) { -+ /* -+ * Don't reschedule an idle task or deactivated tasks -+ */ -+ if (prev == idle) { -+ rq->nr_running++; -+ if (rt_task(next)) -+ rq->rt_nr_running++; -+ } else if (!deactivate) -+ resched_suitable_idle(prev); -+ if (unlikely(next == idle)) { -+ rq->nr_running--; -+ if (rt_task(prev)) -+ rq->rt_nr_running--; -+ wake_siblings(rq); -+ } else -+ check_siblings(rq); -+ rq->nr_switches++; -+ rq->curr = next; -+ /* -+ * The membarrier system call requires each architecture -+ * to have a full memory barrier after updating -+ * rq->curr, before returning to user-space. -+ * -+ * Here are the schemes providing that barrier on the -+ * various architectures: -+ * - mm ? switch_mm() : mmdrop() for x86, s390, sparc, PowerPC. -+ * switch_mm() rely on membarrier_arch_switch_mm() on PowerPC. -+ * - finish_lock_switch() for weakly-ordered -+ * architectures where spin_unlock is a full barrier, -+ * - switch_to() for arm64 (weakly-ordered, spin_unlock -+ * is a RELEASE barrier), -+ */ -+ ++*switch_count; -+ -+ trace_sched_switch(preempt, prev, next); -+ context_switch(rq, prev, next); /* unlocks the rq */ -+ } else { -+ check_siblings(rq); -+ rq_unlock(rq); -+ do_pending_softirq(rq, next); -+ local_irq_enable(); -+ } -+} -+ -+void __noreturn do_task_dead(void) -+{ -+ /* Causes final put_task_struct in finish_task_switch(). */ -+ set_special_state(TASK_DEAD); -+ -+ /* Tell freezer to ignore us: */ -+ current->flags |= PF_NOFREEZE; -+ __schedule(false); -+ BUG(); -+ -+ /* Avoid "noreturn function does return" - but don't continue if BUG() is a NOP: */ -+ for (;;) -+ cpu_relax(); -+} -+ -+static inline void sched_submit_work(struct task_struct *tsk) -+{ -+ if (!tsk->state || tsk_is_pi_blocked(tsk) || -+ preempt_count() || -+ signal_pending_state(tsk->state, tsk)) -+ return; -+ -+ /* -+ * If we are going to sleep and we have plugged IO queued, -+ * make sure to submit it to avoid deadlocks. -+ */ -+ if (blk_needs_flush_plug(tsk)) -+ blk_schedule_flush_plug(tsk); -+} -+ -+asmlinkage __visible void __sched schedule(void) -+{ -+ struct task_struct *tsk = current; -+ -+ sched_submit_work(tsk); -+ do { -+ preempt_disable(); -+ __schedule(false); -+ sched_preempt_enable_no_resched(); -+ } while (need_resched()); -+} -+ -+EXPORT_SYMBOL(schedule); -+ -+/* -+ * synchronize_rcu_tasks() makes sure that no task is stuck in preempted -+ * state (have scheduled out non-voluntarily) by making sure that all -+ * tasks have either left the run queue or have gone into user space. -+ * As idle tasks do not do either, they must not ever be preempted -+ * (schedule out non-voluntarily). -+ * -+ * schedule_idle() is similar to schedule_preempt_disable() except that it -+ * never enables preemption because it does not call sched_submit_work(). -+ */ -+void __sched schedule_idle(void) -+{ -+ /* -+ * As this skips calling sched_submit_work(), which the idle task does -+ * regardless because that function is a nop when the task is in a -+ * TASK_RUNNING state, make sure this isn't used someplace that the -+ * current task can be in any other state. Note, idle is always in the -+ * TASK_RUNNING state. -+ */ -+ WARN_ON_ONCE(current->state); -+ do { -+ __schedule(false); -+ } while (need_resched()); -+} -+ -+#ifdef CONFIG_CONTEXT_TRACKING -+asmlinkage __visible void __sched schedule_user(void) -+{ -+ /* -+ * If we come here after a random call to set_need_resched(), -+ * or we have been woken up remotely but the IPI has not yet arrived, -+ * we haven't yet exited the RCU idle mode. Do it here manually until -+ * we find a better solution. -+ * -+ * NB: There are buggy callers of this function. Ideally we -+ * should warn if prev_state != IN_USER, but that will trigger -+ * too frequently to make sense yet. -+ */ -+ enum ctx_state prev_state = exception_enter(); -+ schedule(); -+ exception_exit(prev_state); -+} -+#endif -+ -+/** -+ * schedule_preempt_disabled - called with preemption disabled -+ * -+ * Returns with preemption disabled. Note: preempt_count must be 1 -+ */ -+void __sched schedule_preempt_disabled(void) -+{ -+ sched_preempt_enable_no_resched(); -+ schedule(); -+ preempt_disable(); -+} -+ -+static void __sched notrace preempt_schedule_common(void) -+{ -+ do { -+ /* -+ * Because the function tracer can trace preempt_count_sub() -+ * and it also uses preempt_enable/disable_notrace(), if -+ * NEED_RESCHED is set, the preempt_enable_notrace() called -+ * by the function tracer will call this function again and -+ * cause infinite recursion. -+ * -+ * Preemption must be disabled here before the function -+ * tracer can trace. Break up preempt_disable() into two -+ * calls. One to disable preemption without fear of being -+ * traced. The other to still record the preemption latency, -+ * which can also be traced by the function tracer. -+ */ -+ preempt_disable_notrace(); -+ preempt_latency_start(1); -+ __schedule(true); -+ preempt_latency_stop(1); -+ preempt_enable_no_resched_notrace(); -+ -+ /* -+ * Check again in case we missed a preemption opportunity -+ * between schedule and now. -+ */ -+ } while (need_resched()); -+} -+ -+#ifdef CONFIG_PREEMPT -+/* -+ * this is the entry point to schedule() from in-kernel preemption -+ * off of preempt_enable. Kernel preemptions off return from interrupt -+ * occur there and call schedule directly. -+ */ -+asmlinkage __visible void __sched notrace preempt_schedule(void) -+{ -+ /* -+ * If there is a non-zero preempt_count or interrupts are disabled, -+ * we do not want to preempt the current task. Just return.. -+ */ -+ if (likely(!preemptible())) -+ return; -+ -+ preempt_schedule_common(); -+} -+NOKPROBE_SYMBOL(preempt_schedule); -+EXPORT_SYMBOL(preempt_schedule); -+ -+/** -+ * preempt_schedule_notrace - preempt_schedule called by tracing -+ * -+ * The tracing infrastructure uses preempt_enable_notrace to prevent -+ * recursion and tracing preempt enabling caused by the tracing -+ * infrastructure itself. But as tracing can happen in areas coming -+ * from userspace or just about to enter userspace, a preempt enable -+ * can occur before user_exit() is called. This will cause the scheduler -+ * to be called when the system is still in usermode. -+ * -+ * To prevent this, the preempt_enable_notrace will use this function -+ * instead of preempt_schedule() to exit user context if needed before -+ * calling the scheduler. -+ */ -+asmlinkage __visible void __sched notrace preempt_schedule_notrace(void) -+{ -+ enum ctx_state prev_ctx; -+ -+ if (likely(!preemptible())) -+ return; -+ -+ do { -+ /* -+ * Because the function tracer can trace preempt_count_sub() -+ * and it also uses preempt_enable/disable_notrace(), if -+ * NEED_RESCHED is set, the preempt_enable_notrace() called -+ * by the function tracer will call this function again and -+ * cause infinite recursion. -+ * -+ * Preemption must be disabled here before the function -+ * tracer can trace. Break up preempt_disable() into two -+ * calls. One to disable preemption without fear of being -+ * traced. The other to still record the preemption latency, -+ * which can also be traced by the function tracer. -+ */ -+ preempt_disable_notrace(); -+ preempt_latency_start(1); -+ /* -+ * Needs preempt disabled in case user_exit() is traced -+ * and the tracer calls preempt_enable_notrace() causing -+ * an infinite recursion. -+ */ -+ prev_ctx = exception_enter(); -+ __schedule(true); -+ exception_exit(prev_ctx); -+ -+ preempt_latency_stop(1); -+ preempt_enable_no_resched_notrace(); -+ } while (need_resched()); -+} -+EXPORT_SYMBOL_GPL(preempt_schedule_notrace); -+ -+#endif /* CONFIG_PREEMPT */ -+ -+/* -+ * this is the entry point to schedule() from kernel preemption -+ * off of irq context. -+ * Note, that this is called and return with irqs disabled. This will -+ * protect us against recursive calling from irq. -+ */ -+asmlinkage __visible void __sched preempt_schedule_irq(void) -+{ -+ enum ctx_state prev_state; -+ -+ /* Catch callers which need to be fixed */ -+ BUG_ON(preempt_count() || !irqs_disabled()); -+ -+ prev_state = exception_enter(); -+ -+ do { -+ preempt_disable(); -+ local_irq_enable(); -+ __schedule(true); -+ local_irq_disable(); -+ sched_preempt_enable_no_resched(); -+ } while (need_resched()); -+ -+ exception_exit(prev_state); -+} -+ -+int default_wake_function(wait_queue_entry_t *curr, unsigned mode, int wake_flags, -+ void *key) -+{ -+ return try_to_wake_up(curr->private, mode, wake_flags); -+} -+EXPORT_SYMBOL(default_wake_function); -+ -+#ifdef CONFIG_RT_MUTEXES -+ -+static inline int __rt_effective_prio(struct task_struct *pi_task, int prio) -+{ -+ if (pi_task) -+ prio = min(prio, pi_task->prio); -+ -+ return prio; -+} -+ -+static inline int rt_effective_prio(struct task_struct *p, int prio) -+{ -+ struct task_struct *pi_task = rt_mutex_get_top_task(p); -+ -+ return __rt_effective_prio(pi_task, prio); -+} -+ -+/* -+ * rt_mutex_setprio - set the current priority of a task -+ * @p: task to boost -+ * @pi_task: donor task -+ * -+ * This function changes the 'effective' priority of a task. It does -+ * not touch ->normal_prio like __setscheduler(). -+ * -+ * Used by the rt_mutex code to implement priority inheritance -+ * logic. Call site only calls if the priority of the task changed. -+ */ -+void rt_mutex_setprio(struct task_struct *p, struct task_struct *pi_task) -+{ -+ int prio, oldprio; -+ struct rq *rq; -+ -+ /* XXX used to be waiter->prio, not waiter->task->prio */ -+ prio = __rt_effective_prio(pi_task, p->normal_prio); -+ -+ /* -+ * If nothing changed; bail early. -+ */ -+ if (p->pi_top_task == pi_task && prio == p->prio) -+ return; -+ -+ rq = __task_rq_lock(p); -+ update_rq_clock(rq); -+ /* -+ * Set under pi_lock && rq->lock, such that the value can be used under -+ * either lock. -+ * -+ * Note that there is loads of tricky to make this pointer cache work -+ * right. rt_mutex_slowunlock()+rt_mutex_postunlock() work together to -+ * ensure a task is de-boosted (pi_task is set to NULL) before the -+ * task is allowed to run again (and can exit). This ensures the pointer -+ * points to a blocked task -- which guaratees the task is present. -+ */ -+ p->pi_top_task = pi_task; -+ -+ /* -+ * For FIFO/RR we only need to set prio, if that matches we're done. -+ */ -+ if (prio == p->prio) -+ goto out_unlock; -+ -+ /* -+ * Idle task boosting is a nono in general. There is one -+ * exception, when PREEMPT_RT and NOHZ is active: -+ * -+ * The idle task calls get_next_timer_interrupt() and holds -+ * the timer wheel base->lock on the CPU and another CPU wants -+ * to access the timer (probably to cancel it). We can safely -+ * ignore the boosting request, as the idle CPU runs this code -+ * with interrupts disabled and will complete the lock -+ * protected section without being interrupted. So there is no -+ * real need to boost. -+ */ -+ if (unlikely(p == rq->idle)) { -+ WARN_ON(p != rq->curr); -+ WARN_ON(p->pi_blocked_on); -+ goto out_unlock; -+ } -+ -+ trace_sched_pi_setprio(p, pi_task); -+ oldprio = p->prio; -+ p->prio = prio; -+ if (task_running(rq, p)){ -+ if (prio > oldprio) -+ resched_task(p); -+ } else if (task_queued(p)) { -+ dequeue_task(rq, p, DEQUEUE_SAVE); -+ enqueue_task(rq, p, ENQUEUE_RESTORE); -+ if (prio < oldprio) -+ try_preempt(p, rq); -+ } -+out_unlock: -+ __task_rq_unlock(rq); -+} -+#else -+static inline int rt_effective_prio(struct task_struct *p, int prio) -+{ -+ return prio; -+} -+#endif -+ -+/* -+ * Adjust the deadline for when the priority is to change, before it's -+ * changed. -+ */ -+static inline void adjust_deadline(struct task_struct *p, int new_prio) -+{ -+ p->deadline += static_deadline_diff(new_prio) - task_deadline_diff(p); -+} -+ -+void set_user_nice(struct task_struct *p, long nice) -+{ -+ int new_static, old_static; -+ unsigned long flags; -+ struct rq *rq; -+ -+ if (task_nice(p) == nice || nice < MIN_NICE || nice > MAX_NICE) -+ return; -+ new_static = NICE_TO_PRIO(nice); -+ /* -+ * We have to be careful, if called from sys_setpriority(), -+ * the task might be in the middle of scheduling on another CPU. -+ */ -+ rq = task_rq_lock(p, &flags); -+ update_rq_clock(rq); -+ -+ /* -+ * The RT priorities are set via sched_setscheduler(), but we still -+ * allow the 'normal' nice value to be set - but as expected -+ * it wont have any effect on scheduling until the task is -+ * not SCHED_NORMAL/SCHED_BATCH: -+ */ -+ if (has_rt_policy(p)) { -+ p->static_prio = new_static; -+ goto out_unlock; -+ } -+ -+ adjust_deadline(p, new_static); -+ old_static = p->static_prio; -+ p->static_prio = new_static; -+ p->prio = effective_prio(p); -+ -+ if (task_queued(p)) { -+ dequeue_task(rq, p, DEQUEUE_SAVE); -+ enqueue_task(rq, p, ENQUEUE_RESTORE); -+ if (new_static < old_static) -+ try_preempt(p, rq); -+ } else if (task_running(rq, p)) { -+ set_rq_task(rq, p); -+ if (old_static < new_static) -+ resched_task(p); -+ } -+out_unlock: -+ task_rq_unlock(rq, p, &flags); -+} -+EXPORT_SYMBOL(set_user_nice); -+ -+/* -+ * can_nice - check if a task can reduce its nice value -+ * @p: task -+ * @nice: nice value -+ */ -+int can_nice(const struct task_struct *p, const int nice) -+{ -+ /* Convert nice value [19,-20] to rlimit style value [1,40] */ -+ int nice_rlim = nice_to_rlimit(nice); -+ -+ return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) || -+ capable(CAP_SYS_NICE)); -+} -+ -+#ifdef __ARCH_WANT_SYS_NICE -+ -+/* -+ * sys_nice - change the priority of the current process. -+ * @increment: priority increment -+ * -+ * sys_setpriority is a more generic, but much slower function that -+ * does similar things. -+ */ -+SYSCALL_DEFINE1(nice, int, increment) -+{ -+ long nice, retval; -+ -+ /* -+ * Setpriority might change our priority at the same moment. -+ * We don't have to worry. Conceptually one call occurs first -+ * and we have a single winner. -+ */ -+ -+ increment = clamp(increment, -NICE_WIDTH, NICE_WIDTH); -+ nice = task_nice(current) + increment; -+ -+ nice = clamp_val(nice, MIN_NICE, MAX_NICE); -+ if (increment < 0 && !can_nice(current, nice)) -+ return -EPERM; -+ -+ retval = security_task_setnice(current, nice); -+ if (retval) -+ return retval; -+ -+ set_user_nice(current, nice); -+ return 0; -+} -+ -+#endif -+ -+/** -+ * task_prio - return the priority value of a given task. -+ * @p: the task in question. -+ * -+ * Return: The priority value as seen by users in /proc. -+ * RT tasks are offset by -100. Normal tasks are centered around 1, value goes -+ * from 0 (SCHED_ISO) up to 82 (nice +19 SCHED_IDLEPRIO). -+ */ -+int task_prio(const struct task_struct *p) -+{ -+ int delta, prio = p->prio - MAX_RT_PRIO; -+ -+ /* rt tasks and iso tasks */ -+ if (prio <= 0) -+ goto out; -+ -+ /* Convert to ms to avoid overflows */ -+ delta = NS_TO_MS(p->deadline - task_rq(p)->niffies); -+ if (unlikely(delta < 0)) -+ delta = 0; -+ delta = delta * 40 / ms_longest_deadline_diff(); -+ if (delta <= 80) -+ prio += delta; -+ if (idleprio_task(p)) -+ prio += 40; -+out: -+ return prio; -+} -+ -+/** -+ * idle_cpu - is a given CPU idle currently? -+ * @cpu: the processor in question. -+ * -+ * Return: 1 if the CPU is currently idle. 0 otherwise. -+ */ -+int idle_cpu(int cpu) -+{ -+ return cpu_curr(cpu) == cpu_rq(cpu)->idle; -+} -+ -+/** -+ * available_idle_cpu - is a given CPU idle for enqueuing work. -+ * @cpu: the CPU in question. -+ * -+ * Return: 1 if the CPU is currently idle. 0 otherwise. -+ */ -+int available_idle_cpu(int cpu) -+{ -+ if (!idle_cpu(cpu)) -+ return 0; -+ -+ if (vcpu_is_preempted(cpu)) -+ return 0; -+ -+ return 1; -+} -+ -+/** -+ * idle_task - return the idle task for a given CPU. -+ * @cpu: the processor in question. -+ * -+ * Return: The idle task for the CPU @cpu. -+ */ -+struct task_struct *idle_task(int cpu) -+{ -+ return cpu_rq(cpu)->idle; -+} -+ -+/** -+ * find_process_by_pid - find a process with a matching PID value. -+ * @pid: the pid in question. -+ * -+ * The task of @pid, if found. %NULL otherwise. -+ */ -+static inline struct task_struct *find_process_by_pid(pid_t pid) -+{ -+ return pid ? find_task_by_vpid(pid) : current; -+} -+ -+/* Actually do priority change: must hold rq lock. */ -+static void __setscheduler(struct task_struct *p, struct rq *rq, int policy, -+ int prio, bool keep_boost) -+{ -+ int oldrtprio, oldprio; -+ -+ p->policy = policy; -+ oldrtprio = p->rt_priority; -+ p->rt_priority = prio; -+ p->normal_prio = normal_prio(p); -+ oldprio = p->prio; -+ /* -+ * Keep a potential priority boosting if called from -+ * sched_setscheduler(). -+ */ -+ p->prio = normal_prio(p); -+ if (keep_boost) -+ p->prio = rt_effective_prio(p, p->prio); -+ -+ if (task_running(rq, p)) { -+ set_rq_task(rq, p); -+ resched_task(p); -+ } else if (task_queued(p)) { -+ dequeue_task(rq, p, DEQUEUE_SAVE); -+ enqueue_task(rq, p, ENQUEUE_RESTORE); -+ if (p->prio < oldprio || p->rt_priority > oldrtprio) -+ try_preempt(p, rq); -+ } -+} -+ -+/* -+ * Check the target process has a UID that matches the current process's -+ */ -+static bool check_same_owner(struct task_struct *p) -+{ -+ const struct cred *cred = current_cred(), *pcred; -+ bool match; -+ -+ rcu_read_lock(); -+ pcred = __task_cred(p); -+ match = (uid_eq(cred->euid, pcred->euid) || -+ uid_eq(cred->euid, pcred->uid)); -+ rcu_read_unlock(); -+ return match; -+} -+ -+static int __sched_setscheduler(struct task_struct *p, -+ const struct sched_attr *attr, -+ bool user, bool pi) -+{ -+ int retval, policy = attr->sched_policy, oldpolicy = -1, priority = attr->sched_priority; -+ unsigned long flags, rlim_rtprio = 0; -+ int reset_on_fork; -+ struct rq *rq; -+ -+ /* The pi code expects interrupts enabled */ -+ BUG_ON(pi && in_interrupt()); -+ -+ if (is_rt_policy(policy) && !capable(CAP_SYS_NICE)) { -+ unsigned long lflags; -+ -+ if (!lock_task_sighand(p, &lflags)) -+ return -ESRCH; -+ rlim_rtprio = task_rlimit(p, RLIMIT_RTPRIO); -+ unlock_task_sighand(p, &lflags); -+ if (rlim_rtprio) -+ goto recheck; -+ /* -+ * If the caller requested an RT policy without having the -+ * necessary rights, we downgrade the policy to SCHED_ISO. -+ * We also set the parameter to zero to pass the checks. -+ */ -+ policy = SCHED_ISO; -+ priority = 0; -+ } -+recheck: -+ /* Double check policy once rq lock held */ -+ if (policy < 0) { -+ reset_on_fork = p->sched_reset_on_fork; -+ policy = oldpolicy = p->policy; -+ } else { -+ reset_on_fork = !!(policy & SCHED_RESET_ON_FORK); -+ policy &= ~SCHED_RESET_ON_FORK; -+ -+ if (!SCHED_RANGE(policy)) -+ return -EINVAL; -+ } -+ -+ if (attr->sched_flags & ~(SCHED_FLAG_ALL | SCHED_FLAG_SUGOV)) -+ return -EINVAL; -+ -+ /* -+ * Valid priorities for SCHED_FIFO and SCHED_RR are -+ * 1..MAX_USER_RT_PRIO-1, valid priority for SCHED_NORMAL and -+ * SCHED_BATCH is 0. -+ */ -+ if (priority < 0 || -+ (p->mm && priority > MAX_USER_RT_PRIO - 1) || -+ (!p->mm && priority > MAX_RT_PRIO - 1)) -+ return -EINVAL; -+ if (is_rt_policy(policy) != (priority != 0)) -+ return -EINVAL; -+ -+ /* -+ * Allow unprivileged RT tasks to decrease priority: -+ */ -+ if (user && !capable(CAP_SYS_NICE)) { -+ if (is_rt_policy(policy)) { -+ unsigned long rlim_rtprio = -+ task_rlimit(p, RLIMIT_RTPRIO); -+ -+ /* Can't set/change the rt policy */ -+ if (policy != p->policy && !rlim_rtprio) -+ return -EPERM; -+ -+ /* Can't increase priority */ -+ if (priority > p->rt_priority && -+ priority > rlim_rtprio) -+ return -EPERM; -+ } else { -+ switch (p->policy) { -+ /* -+ * Can only downgrade policies but not back to -+ * SCHED_NORMAL -+ */ -+ case SCHED_ISO: -+ if (policy == SCHED_ISO) -+ goto out; -+ if (policy != SCHED_NORMAL) -+ return -EPERM; -+ break; -+ case SCHED_BATCH: -+ if (policy == SCHED_BATCH) -+ goto out; -+ if (policy != SCHED_IDLEPRIO) -+ return -EPERM; -+ break; -+ case SCHED_IDLEPRIO: -+ if (policy == SCHED_IDLEPRIO) -+ goto out; -+ return -EPERM; -+ default: -+ break; -+ } -+ } -+ -+ /* Can't change other user's priorities */ -+ if (!check_same_owner(p)) -+ return -EPERM; -+ -+ /* Normal users shall not reset the sched_reset_on_fork flag: */ -+ if (p->sched_reset_on_fork && !reset_on_fork) -+ return -EPERM; -+ } -+ -+ if (user) { -+ retval = security_task_setscheduler(p); -+ if (retval) -+ return retval; -+ } -+ -+ /* -+ * Make sure no PI-waiters arrive (or leave) while we are -+ * changing the priority of the task: -+ * -+ * To be able to change p->policy safely, the runqueue lock must be -+ * held. -+ */ -+ rq = task_rq_lock(p, &flags); -+ update_rq_clock(rq); -+ -+ /* -+ * Changing the policy of the stop threads its a very bad idea: -+ */ -+ if (p == rq->stop) { -+ task_rq_unlock(rq, p, &flags); -+ return -EINVAL; -+ } -+ -+ /* -+ * If not changing anything there's no need to proceed further: -+ */ -+ if (unlikely(policy == p->policy && (!is_rt_policy(policy) || -+ priority == p->rt_priority))) { -+ task_rq_unlock(rq, p, &flags); -+ return 0; -+ } -+ -+ /* Re-check policy now with rq lock held */ -+ if (unlikely(oldpolicy != -1 && oldpolicy != p->policy)) { -+ policy = oldpolicy = -1; -+ task_rq_unlock(rq, p, &flags); -+ goto recheck; -+ } -+ p->sched_reset_on_fork = reset_on_fork; -+ -+ __setscheduler(p, rq, policy, priority, pi); -+ task_rq_unlock(rq, p, &flags); -+ -+ if (pi) -+ rt_mutex_adjust_pi(p); -+out: -+ return 0; -+} -+ -+static int _sched_setscheduler(struct task_struct *p, int policy, -+ const struct sched_param *param, bool check) -+{ -+ struct sched_attr attr = { -+ .sched_policy = policy, -+ .sched_priority = param->sched_priority, -+ .sched_nice = PRIO_TO_NICE(p->static_prio), -+ }; -+ -+ return __sched_setscheduler(p, &attr, check, true); -+} -+/** -+ * sched_setscheduler - change the scheduling policy and/or RT priority of a thread. -+ * @p: the task in question. -+ * @policy: new policy. -+ * @param: structure containing the new RT priority. -+ * -+ * Return: 0 on success. An error code otherwise. -+ * -+ * NOTE that the task may be already dead. -+ */ -+int sched_setscheduler(struct task_struct *p, int policy, -+ const struct sched_param *param) -+{ -+ return _sched_setscheduler(p, policy, param, true); -+} -+ -+EXPORT_SYMBOL_GPL(sched_setscheduler); -+ -+int sched_setattr(struct task_struct *p, const struct sched_attr *attr) -+{ -+ return __sched_setscheduler(p, attr, true, true); -+} -+EXPORT_SYMBOL_GPL(sched_setattr); -+ -+int sched_setattr_nocheck(struct task_struct *p, const struct sched_attr *attr) -+{ -+ return __sched_setscheduler(p, attr, false, true); -+} -+ -+/** -+ * sched_setscheduler_nocheck - change the scheduling policy and/or RT priority of a thread from kernelspace. -+ * @p: the task in question. -+ * @policy: new policy. -+ * @param: structure containing the new RT priority. -+ * -+ * Just like sched_setscheduler, only don't bother checking if the -+ * current context has permission. For example, this is needed in -+ * stop_machine(): we create temporary high priority worker threads, -+ * but our caller might not have that capability. -+ * -+ * Return: 0 on success. An error code otherwise. -+ */ -+int sched_setscheduler_nocheck(struct task_struct *p, int policy, -+ const struct sched_param *param) -+{ -+ return _sched_setscheduler(p, policy, param, false); -+} -+EXPORT_SYMBOL_GPL(sched_setscheduler_nocheck); -+ -+static int -+do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param) -+{ -+ struct sched_param lparam; -+ struct task_struct *p; -+ int retval; -+ -+ if (!param || pid < 0) -+ return -EINVAL; -+ if (copy_from_user(&lparam, param, sizeof(struct sched_param))) -+ return -EFAULT; -+ -+ rcu_read_lock(); -+ retval = -ESRCH; -+ p = find_process_by_pid(pid); -+ if (p != NULL) -+ retval = sched_setscheduler(p, policy, &lparam); -+ rcu_read_unlock(); -+ -+ return retval; -+} -+ -+/* -+ * Mimics kernel/events/core.c perf_copy_attr(). -+ */ -+static int sched_copy_attr(struct sched_attr __user *uattr, -+ struct sched_attr *attr) -+{ -+ u32 size; -+ int ret; -+ -+ if (!access_ok(VERIFY_WRITE, uattr, SCHED_ATTR_SIZE_VER0)) -+ return -EFAULT; -+ -+ /* Zero the full structure, so that a short copy will be nice: */ -+ memset(attr, 0, sizeof(*attr)); -+ -+ ret = get_user(size, &uattr->size); -+ if (ret) -+ return ret; -+ -+ /* Bail out on silly large: */ -+ if (size > PAGE_SIZE) -+ goto err_size; -+ -+ /* ABI compatibility quirk: */ -+ if (!size) -+ size = SCHED_ATTR_SIZE_VER0; -+ -+ if (size < SCHED_ATTR_SIZE_VER0) -+ goto err_size; -+ -+ /* -+ * If we're handed a bigger struct than we know of, -+ * ensure all the unknown bits are 0 - i.e. new -+ * user-space does not rely on any kernel feature -+ * extensions we dont know about yet. -+ */ -+ if (size > sizeof(*attr)) { -+ unsigned char __user *addr; -+ unsigned char __user *end; -+ unsigned char val; -+ -+ addr = (void __user *)uattr + sizeof(*attr); -+ end = (void __user *)uattr + size; -+ -+ for (; addr < end; addr++) { -+ ret = get_user(val, addr); -+ if (ret) -+ return ret; -+ if (val) -+ goto err_size; -+ } -+ size = sizeof(*attr); -+ } -+ -+ ret = copy_from_user(attr, uattr, size); -+ if (ret) -+ return -EFAULT; -+ -+ /* -+ * XXX: Do we want to be lenient like existing syscalls; or do we want -+ * to be strict and return an error on out-of-bounds values? -+ */ -+ attr->sched_nice = clamp(attr->sched_nice, -20, 19); -+ -+ /* sched/core.c uses zero here but we already know ret is zero */ -+ return 0; -+ -+err_size: -+ put_user(sizeof(*attr), &uattr->size); -+ return -E2BIG; -+} -+ -+/* -+ * sched_setparam() passes in -1 for its policy, to let the functions -+ * it calls know not to change it. -+ */ -+#define SETPARAM_POLICY -1 -+ -+/** -+ * sys_sched_setscheduler - set/change the scheduler policy and RT priority -+ * @pid: the pid in question. -+ * @policy: new policy. -+ * @param: structure containing the new RT priority. -+ * -+ * Return: 0 on success. An error code otherwise. -+ */ -+SYSCALL_DEFINE3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param) -+{ -+ if (policy < 0) -+ return -EINVAL; -+ -+ return do_sched_setscheduler(pid, policy, param); -+} -+ -+/** -+ * sys_sched_setparam - set/change the RT priority of a thread -+ * @pid: the pid in question. -+ * @param: structure containing the new RT priority. -+ * -+ * Return: 0 on success. An error code otherwise. -+ */ -+SYSCALL_DEFINE2(sched_setparam, pid_t, pid, struct sched_param __user *, param) -+{ -+ return do_sched_setscheduler(pid, SETPARAM_POLICY, param); -+} -+ -+/** -+ * sys_sched_setattr - same as above, but with extended sched_attr -+ * @pid: the pid in question. -+ * @uattr: structure containing the extended parameters. -+ */ -+SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr, -+ unsigned int, flags) -+{ -+ struct sched_attr attr; -+ struct task_struct *p; -+ int retval; -+ -+ if (!uattr || pid < 0 || flags) -+ return -EINVAL; -+ -+ retval = sched_copy_attr(uattr, &attr); -+ if (retval) -+ return retval; -+ -+ if ((int)attr.sched_policy < 0) -+ return -EINVAL; -+ -+ rcu_read_lock(); -+ retval = -ESRCH; -+ p = find_process_by_pid(pid); -+ if (p != NULL) -+ retval = sched_setattr(p, &attr); -+ rcu_read_unlock(); -+ -+ return retval; -+} -+ -+/** -+ * sys_sched_getscheduler - get the policy (scheduling class) of a thread -+ * @pid: the pid in question. -+ * -+ * Return: On success, the policy of the thread. Otherwise, a negative error -+ * code. -+ */ -+SYSCALL_DEFINE1(sched_getscheduler, pid_t, pid) -+{ -+ struct task_struct *p; -+ int retval = -EINVAL; -+ -+ if (pid < 0) -+ goto out_nounlock; -+ -+ retval = -ESRCH; -+ rcu_read_lock(); -+ p = find_process_by_pid(pid); -+ if (p) { -+ retval = security_task_getscheduler(p); -+ if (!retval) -+ retval = p->policy; -+ } -+ rcu_read_unlock(); -+ -+out_nounlock: -+ return retval; -+} -+ -+/** -+ * sys_sched_getscheduler - get the RT priority of a thread -+ * @pid: the pid in question. -+ * @param: structure containing the RT priority. -+ * -+ * Return: On success, 0 and the RT priority is in @param. Otherwise, an error -+ * code. -+ */ -+SYSCALL_DEFINE2(sched_getparam, pid_t, pid, struct sched_param __user *, param) -+{ -+ struct sched_param lp = { .sched_priority = 0 }; -+ struct task_struct *p; -+ int retval = -EINVAL; -+ -+ if (!param || pid < 0) -+ goto out_nounlock; -+ -+ rcu_read_lock(); -+ p = find_process_by_pid(pid); -+ retval = -ESRCH; -+ if (!p) -+ goto out_unlock; -+ -+ retval = security_task_getscheduler(p); -+ if (retval) -+ goto out_unlock; -+ -+ if (has_rt_policy(p)) -+ lp.sched_priority = p->rt_priority; -+ rcu_read_unlock(); -+ -+ /* -+ * This one might sleep, we cannot do it with a spinlock held ... -+ */ -+ retval = copy_to_user(param, &lp, sizeof(*param)) ? -EFAULT : 0; -+ -+out_nounlock: -+ return retval; -+ -+out_unlock: -+ rcu_read_unlock(); -+ return retval; -+} -+ -+static int sched_read_attr(struct sched_attr __user *uattr, -+ struct sched_attr *attr, -+ unsigned int usize) -+{ -+ int ret; -+ -+ if (!access_ok(VERIFY_WRITE, uattr, usize)) -+ return -EFAULT; -+ -+ /* -+ * If we're handed a smaller struct than we know of, -+ * ensure all the unknown bits are 0 - i.e. old -+ * user-space does not get uncomplete information. -+ */ -+ if (usize < sizeof(*attr)) { -+ unsigned char *addr; -+ unsigned char *end; -+ -+ addr = (void *)attr + usize; -+ end = (void *)attr + sizeof(*attr); -+ -+ for (; addr < end; addr++) { -+ if (*addr) -+ return -EFBIG; -+ } -+ -+ attr->size = usize; -+ } -+ -+ ret = copy_to_user(uattr, attr, attr->size); -+ if (ret) -+ return -EFAULT; -+ -+ /* sched/core.c uses zero here but we already know ret is zero */ -+ return ret; -+} -+ -+/** -+ * sys_sched_getattr - similar to sched_getparam, but with sched_attr -+ * @pid: the pid in question. -+ * @uattr: structure containing the extended parameters. -+ * @size: sizeof(attr) for fwd/bwd comp. -+ * @flags: for future extension. -+ */ -+SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr, -+ unsigned int, size, unsigned int, flags) -+{ -+ struct sched_attr attr = { -+ .size = sizeof(struct sched_attr), -+ }; -+ struct task_struct *p; -+ int retval; -+ -+ if (!uattr || pid < 0 || size > PAGE_SIZE || -+ size < SCHED_ATTR_SIZE_VER0 || flags) -+ return -EINVAL; -+ -+ rcu_read_lock(); -+ p = find_process_by_pid(pid); -+ retval = -ESRCH; -+ if (!p) -+ goto out_unlock; -+ -+ retval = security_task_getscheduler(p); -+ if (retval) -+ goto out_unlock; -+ -+ attr.sched_policy = p->policy; -+ if (rt_task(p)) -+ attr.sched_priority = p->rt_priority; -+ else -+ attr.sched_nice = task_nice(p); -+ -+ rcu_read_unlock(); -+ -+ retval = sched_read_attr(uattr, &attr, size); -+ return retval; -+ -+out_unlock: -+ rcu_read_unlock(); -+ return retval; -+} -+ -+long sched_setaffinity(pid_t pid, const struct cpumask *in_mask) -+{ -+ cpumask_var_t cpus_allowed, new_mask; -+ struct task_struct *p; -+ int retval; -+ -+ rcu_read_lock(); -+ -+ p = find_process_by_pid(pid); -+ if (!p) { -+ rcu_read_unlock(); -+ return -ESRCH; -+ } -+ -+ /* Prevent p going away */ -+ get_task_struct(p); -+ rcu_read_unlock(); -+ -+ if (p->flags & PF_NO_SETAFFINITY) { -+ retval = -EINVAL; -+ goto out_put_task; -+ } -+ if (!alloc_cpumask_var(&cpus_allowed, GFP_KERNEL)) { -+ retval = -ENOMEM; -+ goto out_put_task; -+ } -+ if (!alloc_cpumask_var(&new_mask, GFP_KERNEL)) { -+ retval = -ENOMEM; -+ goto out_free_cpus_allowed; -+ } -+ retval = -EPERM; -+ if (!check_same_owner(p)) { -+ rcu_read_lock(); -+ if (!ns_capable(__task_cred(p)->user_ns, CAP_SYS_NICE)) { -+ rcu_read_unlock(); -+ goto out_unlock; -+ } -+ rcu_read_unlock(); -+ } -+ -+ retval = security_task_setscheduler(p); -+ if (retval) -+ goto out_unlock; -+ -+ cpuset_cpus_allowed(p, cpus_allowed); -+ cpumask_and(new_mask, in_mask, cpus_allowed); -+again: -+ retval = __set_cpus_allowed_ptr(p, new_mask, true); -+ -+ if (!retval) { -+ cpuset_cpus_allowed(p, cpus_allowed); -+ if (!cpumask_subset(new_mask, cpus_allowed)) { -+ /* -+ * We must have raced with a concurrent cpuset -+ * update. Just reset the cpus_allowed to the -+ * cpuset's cpus_allowed -+ */ -+ cpumask_copy(new_mask, cpus_allowed); -+ goto again; -+ } -+ } -+out_unlock: -+ free_cpumask_var(new_mask); -+out_free_cpus_allowed: -+ free_cpumask_var(cpus_allowed); -+out_put_task: -+ put_task_struct(p); -+ return retval; -+} -+ -+static int get_user_cpu_mask(unsigned long __user *user_mask_ptr, unsigned len, -+ cpumask_t *new_mask) -+{ -+ if (len < cpumask_size()) -+ cpumask_clear(new_mask); -+ else if (len > cpumask_size()) -+ len = cpumask_size(); -+ -+ return copy_from_user(new_mask, user_mask_ptr, len) ? -EFAULT : 0; -+} -+ -+ -+/** -+ * sys_sched_setaffinity - set the CPU affinity of a process -+ * @pid: pid of the process -+ * @len: length in bytes of the bitmask pointed to by user_mask_ptr -+ * @user_mask_ptr: user-space pointer to the new CPU mask -+ * -+ * Return: 0 on success. An error code otherwise. -+ */ -+SYSCALL_DEFINE3(sched_setaffinity, pid_t, pid, unsigned int, len, -+ unsigned long __user *, user_mask_ptr) -+{ -+ cpumask_var_t new_mask; -+ int retval; -+ -+ if (!alloc_cpumask_var(&new_mask, GFP_KERNEL)) -+ return -ENOMEM; -+ -+ retval = get_user_cpu_mask(user_mask_ptr, len, new_mask); -+ if (retval == 0) -+ retval = sched_setaffinity(pid, new_mask); -+ free_cpumask_var(new_mask); -+ return retval; -+} -+ -+long sched_getaffinity(pid_t pid, cpumask_t *mask) -+{ -+ struct task_struct *p; -+ unsigned long flags; -+ int retval; -+ -+ get_online_cpus(); -+ rcu_read_lock(); -+ -+ retval = -ESRCH; -+ p = find_process_by_pid(pid); -+ if (!p) -+ goto out_unlock; -+ -+ retval = security_task_getscheduler(p); -+ if (retval) -+ goto out_unlock; -+ -+ raw_spin_lock_irqsave(&p->pi_lock, flags); -+ cpumask_and(mask, &p->cpus_allowed, cpu_active_mask); -+ raw_spin_unlock_irqrestore(&p->pi_lock, flags); -+ -+out_unlock: -+ rcu_read_unlock(); -+ put_online_cpus(); -+ -+ return retval; -+} -+ -+/** -+ * sys_sched_getaffinity - get the CPU affinity of a process -+ * @pid: pid of the process -+ * @len: length in bytes of the bitmask pointed to by user_mask_ptr -+ * @user_mask_ptr: user-space pointer to hold the current CPU mask -+ * -+ * Return: 0 on success. An error code otherwise. -+ */ -+SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len, -+ unsigned long __user *, user_mask_ptr) -+{ -+ int ret; -+ cpumask_var_t mask; -+ -+ if ((len * BITS_PER_BYTE) < nr_cpu_ids) -+ return -EINVAL; -+ if (len & (sizeof(unsigned long)-1)) -+ return -EINVAL; -+ -+ if (!alloc_cpumask_var(&mask, GFP_KERNEL)) -+ return -ENOMEM; -+ -+ ret = sched_getaffinity(pid, mask); -+ if (ret == 0) { -+ unsigned int retlen = min(len, cpumask_size()); -+ -+ if (copy_to_user(user_mask_ptr, mask, retlen)) -+ ret = -EFAULT; -+ else -+ ret = retlen; -+ } -+ free_cpumask_var(mask); -+ -+ return ret; -+} -+ -+/** -+ * sys_sched_yield - yield the current processor to other threads. -+ * -+ * This function yields the current CPU to other tasks. It does this by -+ * scheduling away the current task. If it still has the earliest deadline -+ * it will be scheduled again as the next task. -+ * -+ * Return: 0. -+ */ -+static void do_sched_yield(void) -+{ -+ struct rq *rq; -+ -+ if (!sched_yield_type) -+ return; -+ -+ local_irq_disable(); -+ rq = this_rq(); -+ rq_lock(rq); -+ -+ if (sched_yield_type > 1) -+ time_slice_expired(current, rq); -+ schedstat_inc(rq->yld_count); -+ -+ /* -+ * Since we are going to call schedule() anyway, there's -+ * no need to preempt or enable interrupts: -+ */ -+ preempt_disable(); -+ rq_unlock(rq); -+ sched_preempt_enable_no_resched(); -+ -+ schedule(); -+} -+ -+SYSCALL_DEFINE0(sched_yield) -+{ -+ do_sched_yield(); -+ return 0; -+} -+ -+#ifndef CONFIG_PREEMPT -+int __sched _cond_resched(void) -+{ -+ if (should_resched(0)) { -+ preempt_schedule_common(); -+ return 1; -+ } -+ rcu_all_qs(); -+ return 0; -+} -+EXPORT_SYMBOL(_cond_resched); -+#endif -+ -+/* -+ * __cond_resched_lock() - if a reschedule is pending, drop the given lock, -+ * call schedule, and on return reacquire the lock. -+ * -+ * This works OK both with and without CONFIG_PREEMPT. We do strange low-level -+ * operations here to prevent schedule() from being called twice (once via -+ * spin_unlock(), once by hand). -+ */ -+int __cond_resched_lock(spinlock_t *lock) -+{ -+ int resched = should_resched(PREEMPT_LOCK_OFFSET); -+ int ret = 0; -+ -+ lockdep_assert_held(lock); -+ -+ if (spin_needbreak(lock) || resched) { -+ spin_unlock(lock); -+ if (resched) -+ preempt_schedule_common(); -+ else -+ cpu_relax(); -+ ret = 1; -+ spin_lock(lock); -+ } -+ return ret; -+} -+EXPORT_SYMBOL(__cond_resched_lock); -+ -+/** -+ * yield - yield the current processor to other threads. -+ * -+ * Do not ever use this function, there's a 99% chance you're doing it wrong. -+ * -+ * The scheduler is at all times free to pick the calling task as the most -+ * eligible task to run, if removing the yield() call from your code breaks -+ * it, its already broken. -+ * -+ * Typical broken usage is: -+ * -+ * while (!event) -+ * yield(); -+ * -+ * where one assumes that yield() will let 'the other' process run that will -+ * make event true. If the current task is a SCHED_FIFO task that will never -+ * happen. Never use yield() as a progress guarantee!! -+ * -+ * If you want to use yield() to wait for something, use wait_event(). -+ * If you want to use yield() to be 'nice' for others, use cond_resched(). -+ * If you still want to use yield(), do not! -+ */ -+void __sched yield(void) -+{ -+ set_current_state(TASK_RUNNING); -+ do_sched_yield(); -+} -+EXPORT_SYMBOL(yield); -+ -+/** -+ * yield_to - yield the current processor to another thread in -+ * your thread group, or accelerate that thread toward the -+ * processor it's on. -+ * @p: target task -+ * @preempt: whether task preemption is allowed or not -+ * -+ * It's the caller's job to ensure that the target task struct -+ * can't go away on us before we can do any checks. -+ * -+ * Return: -+ * true (>0) if we indeed boosted the target task. -+ * false (0) if we failed to boost the target. -+ * -ESRCH if there's no task to yield to. -+ */ -+int __sched yield_to(struct task_struct *p, bool preempt) -+{ -+ struct task_struct *rq_p; -+ struct rq *rq, *p_rq; -+ unsigned long flags; -+ int yielded = 0; -+ -+ local_irq_save(flags); -+ rq = this_rq(); -+ -+again: -+ p_rq = task_rq(p); -+ /* -+ * If we're the only runnable task on the rq and target rq also -+ * has only one task, there's absolutely no point in yielding. -+ */ -+ if (task_running(p_rq, p) || p->state) { -+ yielded = -ESRCH; -+ goto out_irq; -+ } -+ -+ double_rq_lock(rq, p_rq); -+ if (unlikely(task_rq(p) != p_rq)) { -+ double_rq_unlock(rq, p_rq); -+ goto again; -+ } -+ -+ yielded = 1; -+ schedstat_inc(rq->yld_count); -+ rq_p = rq->curr; -+ if (p->deadline > rq_p->deadline) -+ p->deadline = rq_p->deadline; -+ p->time_slice += rq_p->time_slice; -+ if (p->time_slice > timeslice()) -+ p->time_slice = timeslice(); -+ time_slice_expired(rq_p, rq); -+ if (preempt && rq != p_rq) -+ resched_task(p_rq->curr); -+ double_rq_unlock(rq, p_rq); -+out_irq: -+ local_irq_restore(flags); -+ -+ if (yielded > 0) -+ schedule(); -+ return yielded; -+} -+EXPORT_SYMBOL_GPL(yield_to); -+ -+int io_schedule_prepare(void) -+{ -+ int old_iowait = current->in_iowait; -+ -+ current->in_iowait = 1; -+ blk_schedule_flush_plug(current); -+ -+ return old_iowait; -+} -+ -+void io_schedule_finish(int token) -+{ -+ current->in_iowait = token; -+} -+ -+/* -+ * This task is about to go to sleep on IO. Increment rq->nr_iowait so -+ * that process accounting knows that this is a task in IO wait state. -+ * -+ * But don't do that if it is a deliberate, throttling IO wait (this task -+ * has set its backing_dev_info: the queue against which it should throttle) -+ */ -+ -+long __sched io_schedule_timeout(long timeout) -+{ -+ int token; -+ long ret; -+ -+ token = io_schedule_prepare(); -+ ret = schedule_timeout(timeout); -+ io_schedule_finish(token); -+ -+ return ret; -+} -+EXPORT_SYMBOL(io_schedule_timeout); -+ -+void io_schedule(void) -+{ -+ int token; -+ -+ token = io_schedule_prepare(); -+ schedule(); -+ io_schedule_finish(token); -+} -+EXPORT_SYMBOL(io_schedule); -+ -+/** -+ * sys_sched_get_priority_max - return maximum RT priority. -+ * @policy: scheduling class. -+ * -+ * Return: On success, this syscall returns the maximum -+ * rt_priority that can be used by a given scheduling class. -+ * On failure, a negative error code is returned. -+ */ -+SYSCALL_DEFINE1(sched_get_priority_max, int, policy) -+{ -+ int ret = -EINVAL; -+ -+ switch (policy) { -+ case SCHED_FIFO: -+ case SCHED_RR: -+ ret = MAX_USER_RT_PRIO-1; -+ break; -+ case SCHED_NORMAL: -+ case SCHED_BATCH: -+ case SCHED_ISO: -+ case SCHED_IDLEPRIO: -+ ret = 0; -+ break; -+ } -+ return ret; -+} -+ -+/** -+ * sys_sched_get_priority_min - return minimum RT priority. -+ * @policy: scheduling class. -+ * -+ * Return: On success, this syscall returns the minimum -+ * rt_priority that can be used by a given scheduling class. -+ * On failure, a negative error code is returned. -+ */ -+SYSCALL_DEFINE1(sched_get_priority_min, int, policy) -+{ -+ int ret = -EINVAL; -+ -+ switch (policy) { -+ case SCHED_FIFO: -+ case SCHED_RR: -+ ret = 1; -+ break; -+ case SCHED_NORMAL: -+ case SCHED_BATCH: -+ case SCHED_ISO: -+ case SCHED_IDLEPRIO: -+ ret = 0; -+ break; -+ } -+ return ret; -+} -+ -+static int sched_rr_get_interval(pid_t pid, struct timespec64 *t) -+{ -+ struct task_struct *p; -+ unsigned int time_slice; -+ unsigned long flags; -+ struct rq *rq; -+ int retval; -+ -+ if (pid < 0) -+ return -EINVAL; -+ -+ retval = -ESRCH; -+ rcu_read_lock(); -+ p = find_process_by_pid(pid); -+ if (!p) -+ goto out_unlock; -+ -+ retval = security_task_getscheduler(p); -+ if (retval) -+ goto out_unlock; -+ -+ rq = task_rq_lock(p, &flags); -+ time_slice = p->policy == SCHED_FIFO ? 0 : MS_TO_NS(task_timeslice(p)); -+ task_rq_unlock(rq, p, &flags); -+ -+ rcu_read_unlock(); -+ *t = ns_to_timespec64(time_slice); -+ return 0; -+ -+out_unlock: -+ rcu_read_unlock(); -+ return retval; -+} -+ -+/** -+ * sys_sched_rr_get_interval - return the default timeslice of a process. -+ * @pid: pid of the process. -+ * @interval: userspace pointer to the timeslice value. -+ * -+ * this syscall writes the default timeslice value of a given process -+ * into the user-space timespec buffer. A value of '0' means infinity. -+ * -+ * Return: On success, 0 and the timeslice is in @interval. Otherwise, -+ * an error code. -+ */ -+SYSCALL_DEFINE2(sched_rr_get_interval, pid_t, pid, -+ struct timespec __user *, interval) -+{ -+ struct timespec64 t; -+ int retval = sched_rr_get_interval(pid, &t); -+ -+ if (retval == 0) -+ retval = put_timespec64(&t, interval); -+ -+ return retval; -+} -+ -+#ifdef CONFIG_COMPAT -+COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval, -+ compat_pid_t, pid, -+ struct compat_timespec __user *, interval) -+{ -+ struct timespec64 t; -+ int retval = sched_rr_get_interval(pid, &t); -+ -+ if (retval == 0) -+ retval = compat_put_timespec64(&t, interval); -+ return retval; -+} -+#endif -+ -+void sched_show_task(struct task_struct *p) -+{ -+ unsigned long free = 0; -+ int ppid; -+ -+ if (!try_get_task_stack(p)) -+ return; -+ -+ printk(KERN_INFO "%-15.15s %c", p->comm, task_state_to_char(p)); -+ -+ if (p->state == TASK_RUNNING) -+ printk(KERN_CONT " running task "); -+#ifdef CONFIG_DEBUG_STACK_USAGE -+ free = stack_not_used(p); -+#endif -+ ppid = 0; -+ rcu_read_lock(); -+ if (pid_alive(p)) -+ ppid = task_pid_nr(rcu_dereference(p->real_parent)); -+ rcu_read_unlock(); -+ printk(KERN_CONT "%5lu %5d %6d 0x%08lx\n", free, -+ task_pid_nr(p), ppid, -+ (unsigned long)task_thread_info(p)->flags); -+ -+ print_worker_info(KERN_INFO, p); -+ show_stack(p, NULL); -+ put_task_stack(p); -+} -+EXPORT_SYMBOL_GPL(sched_show_task); -+ -+static inline bool -+state_filter_match(unsigned long state_filter, struct task_struct *p) -+{ -+ /* no filter, everything matches */ -+ if (!state_filter) -+ return true; -+ -+ /* filter, but doesn't match */ -+ if (!(p->state & state_filter)) -+ return false; -+ -+ /* -+ * When looking for TASK_UNINTERRUPTIBLE skip TASK_IDLE (allows -+ * TASK_KILLABLE). -+ */ -+ if (state_filter == TASK_UNINTERRUPTIBLE && p->state == TASK_IDLE) -+ return false; -+ -+ return true; -+} -+ -+void show_state_filter(unsigned long state_filter) -+{ -+ struct task_struct *g, *p; -+ -+#if BITS_PER_LONG == 32 -+ printk(KERN_INFO -+ " task PC stack pid father\n"); -+#else -+ printk(KERN_INFO -+ " task PC stack pid father\n"); -+#endif -+ rcu_read_lock(); -+ for_each_process_thread(g, p) { -+ /* -+ * reset the NMI-timeout, listing all files on a slow -+ * console might take a lot of time: -+ * Also, reset softlockup watchdogs on all CPUs, because -+ * another CPU might be blocked waiting for us to process -+ * an IPI. -+ */ -+ touch_nmi_watchdog(); -+ touch_all_softlockup_watchdogs(); -+ if (state_filter_match(state_filter, p)) -+ sched_show_task(p); -+ } -+ -+ rcu_read_unlock(); -+ /* -+ * Only show locks if all tasks are dumped: -+ */ -+ if (!state_filter) -+ debug_show_all_locks(); -+} -+ -+void dump_cpu_task(int cpu) -+{ -+ pr_info("Task dump for CPU %d:\n", cpu); -+ sched_show_task(cpu_curr(cpu)); -+} -+ -+#ifdef CONFIG_SMP -+void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask) -+{ -+ cpumask_copy(&p->cpus_allowed, new_mask); -+ p->nr_cpus_allowed = cpumask_weight(new_mask); -+} -+ -+void __do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask) -+{ -+ struct rq *rq = task_rq(p); -+ -+ lockdep_assert_held(&p->pi_lock); -+ -+ cpumask_copy(&p->cpus_allowed, new_mask); -+ -+ if (task_queued(p)) { -+ /* -+ * Because __kthread_bind() calls this on blocked tasks without -+ * holding rq->lock. -+ */ -+ lockdep_assert_held(rq->lock); -+ } -+} -+ -+/* -+ * Calling do_set_cpus_allowed from outside the scheduler code should not be -+ * called on a running or queued task. We should be holding pi_lock. -+ */ -+void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask) -+{ -+ __do_set_cpus_allowed(p, new_mask); -+ if (needs_other_cpu(p, task_cpu(p))) { -+ struct rq *rq; -+ -+ rq = __task_rq_lock(p); -+ set_task_cpu(p, valid_task_cpu(p)); -+ resched_task(p); -+ __task_rq_unlock(rq); -+ } -+} -+#endif -+ -+/** -+ * init_idle - set up an idle thread for a given CPU -+ * @idle: task in question -+ * @cpu: cpu the idle task belongs to -+ * -+ * NOTE: this function does not set the idle thread's NEED_RESCHED -+ * flag, to make booting more robust. -+ */ -+void init_idle(struct task_struct *idle, int cpu) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ unsigned long flags; -+ -+ raw_spin_lock_irqsave(&idle->pi_lock, flags); -+ raw_spin_lock(rq->lock); -+ idle->last_ran = rq->niffies; -+ time_slice_expired(idle, rq); -+ idle->state = TASK_RUNNING; -+ /* Setting prio to illegal value shouldn't matter when never queued */ -+ idle->prio = PRIO_LIMIT; -+ -+ kasan_unpoison_task_stack(idle); -+ -+#ifdef CONFIG_SMP -+ /* -+ * It's possible that init_idle() gets called multiple times on a task, -+ * in that case do_set_cpus_allowed() will not do the right thing. -+ * -+ * And since this is boot we can forgo the serialisation. -+ */ -+ set_cpus_allowed_common(idle, cpumask_of(cpu)); -+#ifdef CONFIG_SMT_NICE -+ idle->smt_bias = 0; -+#endif -+#endif -+ set_rq_task(rq, idle); -+ -+ /* Silence PROVE_RCU */ -+ rcu_read_lock(); -+ set_task_cpu(idle, cpu); -+ rcu_read_unlock(); -+ -+ rq->curr = rq->idle = idle; -+ idle->on_rq = TASK_ON_RQ_QUEUED; -+ raw_spin_unlock(rq->lock); -+ raw_spin_unlock_irqrestore(&idle->pi_lock, flags); -+ -+ /* Set the preempt count _outside_ the spinlocks! */ -+ init_idle_preempt_count(idle, cpu); -+ -+ ftrace_graph_init_idle_task(idle, cpu); -+ vtime_init_idle(idle, cpu); -+#ifdef CONFIG_SMP -+ sprintf(idle->comm, "%s/%d", INIT_TASK_COMM, cpu); -+#endif -+} -+ -+int cpuset_cpumask_can_shrink(const struct cpumask __maybe_unused *cur, -+ const struct cpumask __maybe_unused *trial) -+{ -+ return 1; -+} -+ -+int task_can_attach(struct task_struct *p, -+ const struct cpumask *cs_cpus_allowed) -+{ -+ int ret = 0; -+ -+ /* -+ * Kthreads which disallow setaffinity shouldn't be moved -+ * to a new cpuset; we don't want to change their CPU -+ * affinity and isolating such threads by their set of -+ * allowed nodes is unnecessary. Thus, cpusets are not -+ * applicable for such threads. This prevents checking for -+ * success of set_cpus_allowed_ptr() on all attached tasks -+ * before cpus_allowed may be changed. -+ */ -+ if (p->flags & PF_NO_SETAFFINITY) -+ ret = -EINVAL; -+ -+ return ret; -+} -+ -+void resched_cpu(int cpu) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ unsigned long flags; -+ -+ rq_lock_irqsave(rq, &flags); -+ if (cpu_online(cpu) || cpu == smp_processor_id()) -+ resched_curr(rq); -+ rq_unlock_irqrestore(rq, &flags); -+} -+ -+#ifdef CONFIG_SMP -+#ifdef CONFIG_NO_HZ_COMMON -+void nohz_balance_enter_idle(int cpu) -+{ -+} -+ -+void select_nohz_load_balancer(int stop_tick) -+{ -+} -+ -+void set_cpu_sd_state_idle(void) {} -+ -+/* -+ * In the semi idle case, use the nearest busy CPU for migrating timers -+ * from an idle CPU. This is good for power-savings. -+ * -+ * We don't do similar optimization for completely idle system, as -+ * selecting an idle CPU will add more delays to the timers than intended -+ * (as that CPU's timer base may not be uptodate wrt jiffies etc). -+ */ -+int get_nohz_timer_target(void) -+{ -+ int i, cpu = smp_processor_id(); -+ struct sched_domain *sd; -+ -+ if (!idle_cpu(cpu) && housekeeping_cpu(cpu, HK_FLAG_TIMER)) -+ return cpu; -+ -+ rcu_read_lock(); -+ for_each_domain(cpu, sd) { -+ for_each_cpu(i, sched_domain_span(sd)) { -+ if (cpu == i) -+ continue; -+ -+ if (!idle_cpu(i) && housekeeping_cpu(i, HK_FLAG_TIMER)) { -+ cpu = i; -+ cpu = i; -+ goto unlock; -+ } -+ } -+ } -+ -+ if (!housekeeping_cpu(cpu, HK_FLAG_TIMER)) -+ cpu = housekeeping_any_cpu(HK_FLAG_TIMER); -+unlock: -+ rcu_read_unlock(); -+ return cpu; -+} -+ -+/* -+ * When add_timer_on() enqueues a timer into the timer wheel of an -+ * idle CPU then this timer might expire before the next timer event -+ * which is scheduled to wake up that CPU. In case of a completely -+ * idle system the next event might even be infinite time into the -+ * future. wake_up_idle_cpu() ensures that the CPU is woken up and -+ * leaves the inner idle loop so the newly added timer is taken into -+ * account when the CPU goes back to idle and evaluates the timer -+ * wheel for the next timer event. -+ */ -+void wake_up_idle_cpu(int cpu) -+{ -+ if (cpu == smp_processor_id()) -+ return; -+ -+ if (set_nr_and_not_polling(cpu_rq(cpu)->idle)) -+ smp_sched_reschedule(cpu); -+ else -+ trace_sched_wake_idle_without_ipi(cpu); -+} -+ -+static bool wake_up_full_nohz_cpu(int cpu) -+{ -+ /* -+ * We just need the target to call irq_exit() and re-evaluate -+ * the next tick. The nohz full kick at least implies that. -+ * If needed we can still optimize that later with an -+ * empty IRQ. -+ */ -+ if (cpu_is_offline(cpu)) -+ return true; /* Don't try to wake offline CPUs. */ -+ if (tick_nohz_full_cpu(cpu)) { -+ if (cpu != smp_processor_id() || -+ tick_nohz_tick_stopped()) -+ tick_nohz_full_kick_cpu(cpu); -+ return true; -+ } -+ -+ return false; -+} -+ -+/* -+ * Wake up the specified CPU. If the CPU is going offline, it is the -+ * caller's responsibility to deal with the lost wakeup, for example, -+ * by hooking into the CPU_DEAD notifier like timers and hrtimers do. -+ */ -+void wake_up_nohz_cpu(int cpu) -+{ -+ if (!wake_up_full_nohz_cpu(cpu)) -+ wake_up_idle_cpu(cpu); -+} -+#endif /* CONFIG_NO_HZ_COMMON */ -+ -+/* -+ * Change a given task's CPU affinity. Migrate the thread to a -+ * proper CPU and schedule it away if the CPU it's executing on -+ * is removed from the allowed bitmask. -+ * -+ * NOTE: the caller must have a valid reference to the task, the -+ * task must not exit() & deallocate itself prematurely. The -+ * call is not atomic; no spinlocks may be held. -+ */ -+static int __set_cpus_allowed_ptr(struct task_struct *p, -+ const struct cpumask *new_mask, bool check) -+{ -+ const struct cpumask *cpu_valid_mask = cpu_active_mask; -+ bool queued = false, running_wrong = false, kthread; -+ struct cpumask old_mask; -+ unsigned long flags; -+ int cpu, ret = 0; -+ struct rq *rq; -+ -+ rq = task_rq_lock(p, &flags); -+ update_rq_clock(rq); -+ -+ kthread = !!(p->flags & PF_KTHREAD); -+ if (kthread) { -+ /* -+ * Kernel threads are allowed on online && !active CPUs -+ */ -+ cpu_valid_mask = cpu_online_mask; -+ } -+ -+ /* -+ * Must re-check here, to close a race against __kthread_bind(), -+ * sched_setaffinity() is not guaranteed to observe the flag. -+ */ -+ if (check && (p->flags & PF_NO_SETAFFINITY)) { -+ ret = -EINVAL; -+ goto out; -+ } -+ -+ cpumask_copy(&old_mask, &p->cpus_allowed); -+ if (cpumask_equal(&old_mask, new_mask)) -+ goto out; -+ -+ if (!cpumask_intersects(new_mask, cpu_valid_mask)) { -+ ret = -EINVAL; -+ goto out; -+ } -+ -+ queued = task_queued(p); -+ __do_set_cpus_allowed(p, new_mask); -+ -+ if (kthread) { -+ /* -+ * For kernel threads that do indeed end up on online && -+ * !active we want to ensure they are strict per-CPU threads. -+ */ -+ WARN_ON(cpumask_intersects(new_mask, cpu_online_mask) && -+ !cpumask_intersects(new_mask, cpu_active_mask) && -+ p->nr_cpus_allowed != 1); -+ } -+ -+ /* Can the task run on the task's current CPU? If so, we're done */ -+ if (cpumask_test_cpu(task_cpu(p), new_mask)) -+ goto out; -+ -+ if (task_running(rq, p)) { -+ /* Task is running on the wrong cpu now, reschedule it. */ -+ if (rq == this_rq()) { -+ cpu = cpumask_any_and(cpu_valid_mask, new_mask); -+ set_task_cpu(p, cpu); -+ set_tsk_need_resched(p); -+ running_wrong = true; -+ } else -+ resched_task(p); -+ } else { -+ cpu = cpumask_any_and(cpu_valid_mask, new_mask); -+ if (queued) { -+ /* -+ * Switch runqueue locks after dequeueing the task -+ * here while still holding the pi_lock to be holding -+ * the correct lock for enqueueing. -+ */ -+ dequeue_task(rq, p, 0); -+ rq_unlock(rq); -+ -+ rq = cpu_rq(cpu); -+ rq_lock(rq); -+ } -+ set_task_cpu(p, cpu); -+ if (queued) -+ enqueue_task(rq, p, 0); -+ } -+ if (queued) -+ try_preempt(p, rq); -+ if (running_wrong) -+ preempt_disable(); -+out: -+ task_rq_unlock(rq, p, &flags); -+ -+ if (running_wrong) { -+ __schedule(true); -+ preempt_enable(); -+ } -+ -+ return ret; -+} -+ -+int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask) -+{ -+ return __set_cpus_allowed_ptr(p, new_mask, false); -+} -+EXPORT_SYMBOL_GPL(set_cpus_allowed_ptr); -+ -+#ifdef CONFIG_HOTPLUG_CPU -+/* -+ * Run through task list and find tasks affined to the dead cpu, then remove -+ * that cpu from the list, enable cpu0 and set the zerobound flag. Must hold -+ * cpu 0 and src_cpu's runqueue locks. -+ */ -+static void bind_zero(int src_cpu) -+{ -+ struct task_struct *p, *t; -+ struct rq *rq0; -+ int bound = 0; -+ -+ if (src_cpu == 0) -+ return; -+ -+ rq0 = cpu_rq(0); -+ -+ do_each_thread(t, p) { -+ if (cpumask_test_cpu(src_cpu, &p->cpus_allowed)) { -+ bool local = (task_cpu(p) == src_cpu); -+ struct rq *rq = task_rq(p); -+ -+ /* task_running is the cpu stopper thread */ -+ if (local && task_running(rq, p)) -+ continue; -+ atomic_clear_cpu(src_cpu, &p->cpus_allowed); -+ atomic_set_cpu(0, &p->cpus_allowed); -+ p->zerobound = true; -+ bound++; -+ if (local) { -+ bool queued = task_queued(p); -+ -+ if (queued) -+ dequeue_task(rq, p, 0); -+ set_task_cpu(p, 0); -+ if (queued) -+ enqueue_task(rq0, p, 0); -+ } -+ } -+ } while_each_thread(t, p); -+ -+ if (bound) { -+ printk(KERN_INFO "Removed affinity for %d processes to cpu %d\n", -+ bound, src_cpu); -+ } -+} -+ -+/* Find processes with the zerobound flag and reenable their affinity for the -+ * CPU coming alive. */ -+static void unbind_zero(int src_cpu) -+{ -+ int unbound = 0, zerobound = 0; -+ struct task_struct *p, *t; -+ -+ if (src_cpu == 0) -+ return; -+ -+ do_each_thread(t, p) { -+ if (!p->mm) -+ p->zerobound = false; -+ if (p->zerobound) { -+ unbound++; -+ cpumask_set_cpu(src_cpu, &p->cpus_allowed); -+ /* Once every CPU affinity has been re-enabled, remove -+ * the zerobound flag */ -+ if (cpumask_subset(cpu_possible_mask, &p->cpus_allowed)) { -+ p->zerobound = false; -+ zerobound++; -+ } -+ } -+ } while_each_thread(t, p); -+ -+ if (unbound) { -+ printk(KERN_INFO "Added affinity for %d processes to cpu %d\n", -+ unbound, src_cpu); -+ } -+ if (zerobound) { -+ printk(KERN_INFO "Released forced binding to cpu0 for %d processes\n", -+ zerobound); -+ } -+} -+ -+/* -+ * Ensure that the idle task is using init_mm right before its cpu goes -+ * offline. -+ */ -+void idle_task_exit(void) -+{ -+ struct mm_struct *mm = current->active_mm; -+ -+ BUG_ON(cpu_online(smp_processor_id())); -+ -+ if (mm != &init_mm) { -+ switch_mm(mm, &init_mm, current); -+ current->active_mm = &init_mm; -+ finish_arch_post_lock_switch(); -+ } -+ mmdrop(mm); -+} -+#else /* CONFIG_HOTPLUG_CPU */ -+static void unbind_zero(int src_cpu) {} -+#endif /* CONFIG_HOTPLUG_CPU */ -+ -+void sched_set_stop_task(int cpu, struct task_struct *stop) -+{ -+ struct sched_param stop_param = { .sched_priority = STOP_PRIO }; -+ struct sched_param start_param = { .sched_priority = 0 }; -+ struct task_struct *old_stop = cpu_rq(cpu)->stop; -+ -+ if (stop) { -+ /* -+ * Make it appear like a SCHED_FIFO task, its something -+ * userspace knows about and won't get confused about. -+ * -+ * Also, it will make PI more or less work without too -+ * much confusion -- but then, stop work should not -+ * rely on PI working anyway. -+ */ -+ sched_setscheduler_nocheck(stop, SCHED_FIFO, &stop_param); -+ } -+ -+ cpu_rq(cpu)->stop = stop; -+ -+ if (old_stop) { -+ /* -+ * Reset it back to a normal scheduling policy so that -+ * it can die in pieces. -+ */ -+ sched_setscheduler_nocheck(old_stop, SCHED_NORMAL, &start_param); -+ } -+} -+ -+#if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL) -+ -+static struct ctl_table sd_ctl_dir[] = { -+ { -+ .procname = "sched_domain", -+ .mode = 0555, -+ }, -+ {} -+}; -+ -+static struct ctl_table sd_ctl_root[] = { -+ { -+ .procname = "kernel", -+ .mode = 0555, -+ .child = sd_ctl_dir, -+ }, -+ {} -+}; -+ -+static struct ctl_table *sd_alloc_ctl_entry(int n) -+{ -+ struct ctl_table *entry = -+ kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL); -+ -+ return entry; -+} -+ -+static void sd_free_ctl_entry(struct ctl_table **tablep) -+{ -+ struct ctl_table *entry; -+ -+ /* -+ * In the intermediate directories, both the child directory and -+ * procname are dynamically allocated and could fail but the mode -+ * will always be set. In the lowest directory the names are -+ * static strings and all have proc handlers. -+ */ -+ for (entry = *tablep; entry->mode; entry++) { -+ if (entry->child) -+ sd_free_ctl_entry(&entry->child); -+ if (entry->proc_handler == NULL) -+ kfree(entry->procname); -+ } -+ -+ kfree(*tablep); -+ *tablep = NULL; -+} -+ -+#define CPU_LOAD_IDX_MAX 5 -+static int min_load_idx = 0; -+static int max_load_idx = CPU_LOAD_IDX_MAX-1; -+ -+static void -+set_table_entry(struct ctl_table *entry, -+ const char *procname, void *data, int maxlen, -+ umode_t mode, proc_handler *proc_handler, -+ bool load_idx) -+{ -+ entry->procname = procname; -+ entry->data = data; -+ entry->maxlen = maxlen; -+ entry->mode = mode; -+ entry->proc_handler = proc_handler; -+ -+ if (load_idx) { -+ entry->extra1 = &min_load_idx; -+ entry->extra2 = &max_load_idx; -+ } -+} -+ -+static struct ctl_table * -+sd_alloc_ctl_domain_table(struct sched_domain *sd) -+{ -+ struct ctl_table *table = sd_alloc_ctl_entry(14); -+ -+ if (table == NULL) -+ return NULL; -+ -+ set_table_entry(&table[0], "min_interval", &sd->min_interval, -+ sizeof(long), 0644, proc_doulongvec_minmax, false); -+ set_table_entry(&table[1], "max_interval", &sd->max_interval, -+ sizeof(long), 0644, proc_doulongvec_minmax, false); -+ set_table_entry(&table[2], "busy_idx", &sd->busy_idx, -+ sizeof(int), 0644, proc_dointvec_minmax, true); -+ set_table_entry(&table[3], "idle_idx", &sd->idle_idx, -+ sizeof(int), 0644, proc_dointvec_minmax, true); -+ set_table_entry(&table[4], "newidle_idx", &sd->newidle_idx, -+ sizeof(int), 0644, proc_dointvec_minmax, true); -+ set_table_entry(&table[5], "wake_idx", &sd->wake_idx, -+ sizeof(int), 0644, proc_dointvec_minmax, true); -+ set_table_entry(&table[6], "forkexec_idx", &sd->forkexec_idx, -+ sizeof(int), 0644, proc_dointvec_minmax, true); -+ set_table_entry(&table[7], "busy_factor", &sd->busy_factor, -+ sizeof(int), 0644, proc_dointvec_minmax, false); -+ set_table_entry(&table[8], "imbalance_pct", &sd->imbalance_pct, -+ sizeof(int), 0644, proc_dointvec_minmax, false); -+ set_table_entry(&table[9], "cache_nice_tries", -+ &sd->cache_nice_tries, -+ sizeof(int), 0644, proc_dointvec_minmax, false); -+ set_table_entry(&table[10], "flags", &sd->flags, -+ sizeof(int), 0644, proc_dointvec_minmax, false); -+ set_table_entry(&table[11], "max_newidle_lb_cost", -+ &sd->max_newidle_lb_cost, -+ sizeof(long), 0644, proc_doulongvec_minmax, false); -+ set_table_entry(&table[12], "name", sd->name, -+ CORENAME_MAX_SIZE, 0444, proc_dostring, false); -+ /* &table[13] is terminator */ -+ -+ return table; -+} -+ -+static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu) -+{ -+ struct ctl_table *entry, *table; -+ struct sched_domain *sd; -+ int domain_num = 0, i; -+ char buf[32]; -+ -+ for_each_domain(cpu, sd) -+ domain_num++; -+ entry = table = sd_alloc_ctl_entry(domain_num + 1); -+ if (table == NULL) -+ return NULL; -+ -+ i = 0; -+ for_each_domain(cpu, sd) { -+ snprintf(buf, 32, "domain%d", i); -+ entry->procname = kstrdup(buf, GFP_KERNEL); -+ entry->mode = 0555; -+ entry->child = sd_alloc_ctl_domain_table(sd); -+ entry++; -+ i++; -+ } -+ return table; -+} -+ -+static cpumask_var_t sd_sysctl_cpus; -+static struct ctl_table_header *sd_sysctl_header; -+ -+void register_sched_domain_sysctl(void) -+{ -+ static struct ctl_table *cpu_entries; -+ static struct ctl_table **cpu_idx; -+ char buf[32]; -+ int i; -+ -+ if (!cpu_entries) { -+ cpu_entries = sd_alloc_ctl_entry(num_possible_cpus() + 1); -+ if (!cpu_entries) -+ return; -+ -+ WARN_ON(sd_ctl_dir[0].child); -+ sd_ctl_dir[0].child = cpu_entries; -+ } -+ -+ if (!cpu_idx) { -+ struct ctl_table *e = cpu_entries; -+ -+ cpu_idx = kcalloc(nr_cpu_ids, sizeof(struct ctl_table*), GFP_KERNEL); -+ if (!cpu_idx) -+ return; -+ -+ /* deal with sparse possible map */ -+ for_each_possible_cpu(i) { -+ cpu_idx[i] = e; -+ e++; -+ } -+ } -+ -+ if (!cpumask_available(sd_sysctl_cpus)) { -+ if (!alloc_cpumask_var(&sd_sysctl_cpus, GFP_KERNEL)) -+ return; -+ -+ /* init to possible to not have holes in @cpu_entries */ -+ cpumask_copy(sd_sysctl_cpus, cpu_possible_mask); -+ } -+ -+ for_each_cpu(i, sd_sysctl_cpus) { -+ struct ctl_table *e = cpu_idx[i]; -+ -+ if (e->child) -+ sd_free_ctl_entry(&e->child); -+ -+ if (!e->procname) { -+ snprintf(buf, 32, "cpu%d", i); -+ e->procname = kstrdup(buf, GFP_KERNEL); -+ } -+ e->mode = 0555; -+ e->child = sd_alloc_ctl_cpu_table(i); -+ -+ __cpumask_clear_cpu(i, sd_sysctl_cpus); -+ } -+ -+ WARN_ON(sd_sysctl_header); -+ sd_sysctl_header = register_sysctl_table(sd_ctl_root); -+} -+ -+void dirty_sched_domain_sysctl(int cpu) -+{ -+ if (cpumask_available(sd_sysctl_cpus)) -+ __cpumask_set_cpu(cpu, sd_sysctl_cpus); -+} -+ -+/* may be called multiple times per register */ -+void unregister_sched_domain_sysctl(void) -+{ -+ unregister_sysctl_table(sd_sysctl_header); -+ sd_sysctl_header = NULL; -+} -+#endif /* CONFIG_SYSCTL */ -+ -+void set_rq_online(struct rq *rq) -+{ -+ if (!rq->online) { -+ cpumask_set_cpu(cpu_of(rq), rq->rd->online); -+ rq->online = true; -+ } -+} -+ -+void set_rq_offline(struct rq *rq) -+{ -+ if (rq->online) { -+ int cpu = cpu_of(rq); -+ -+ cpumask_clear_cpu(cpu, rq->rd->online); -+ rq->online = false; -+ clear_cpuidle_map(cpu); -+ } -+} -+ -+/* -+ * used to mark begin/end of suspend/resume: -+ */ -+static int num_cpus_frozen; -+ -+/* -+ * Update cpusets according to cpu_active mask. If cpusets are -+ * disabled, cpuset_update_active_cpus() becomes a simple wrapper -+ * around partition_sched_domains(). -+ * -+ * If we come here as part of a suspend/resume, don't touch cpusets because we -+ * want to restore it back to its original state upon resume anyway. -+ */ -+static void cpuset_cpu_active(void) -+{ -+ if (cpuhp_tasks_frozen) { -+ /* -+ * num_cpus_frozen tracks how many CPUs are involved in suspend -+ * resume sequence. As long as this is not the last online -+ * operation in the resume sequence, just build a single sched -+ * domain, ignoring cpusets. -+ */ -+ partition_sched_domains(1, NULL, NULL); -+ if (--num_cpus_frozen) -+ return; -+ /* -+ * This is the last CPU online operation. So fall through and -+ * restore the original sched domains by considering the -+ * cpuset configurations. -+ */ -+ cpuset_force_rebuild(); -+ } -+ -+ cpuset_update_active_cpus(); -+} -+ -+static int cpuset_cpu_inactive(unsigned int cpu) -+{ -+ if (!cpuhp_tasks_frozen) { -+ cpuset_update_active_cpus(); -+ } else { -+ num_cpus_frozen++; -+ partition_sched_domains(1, NULL, NULL); -+ } -+ return 0; -+} -+ -+int sched_cpu_activate(unsigned int cpu) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ unsigned long flags; -+ -+ set_cpu_active(cpu, true); -+ -+ if (sched_smp_initialized) { -+ sched_domains_numa_masks_set(cpu); -+ cpuset_cpu_active(); -+ } -+ -+ /* -+ * Put the rq online, if not already. This happens: -+ * -+ * 1) In the early boot process, because we build the real domains -+ * after all CPUs have been brought up. -+ * -+ * 2) At runtime, if cpuset_cpu_active() fails to rebuild the -+ * domains. -+ */ -+ rq_lock_irqsave(rq, &flags); -+ if (rq->rd) { -+ BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); -+ set_rq_online(rq); -+ } -+ unbind_zero(cpu); -+ rq_unlock_irqrestore(rq, &flags); -+ -+ return 0; -+} -+ -+int sched_cpu_deactivate(unsigned int cpu) -+{ -+ int ret; -+ -+ set_cpu_active(cpu, false); -+ /* -+ * We've cleared cpu_active_mask, wait for all preempt-disabled and RCU -+ * users of this state to go away such that all new such users will -+ * observe it. -+ * -+ * Do sync before park smpboot threads to take care the rcu boost case. -+ */ -+ synchronize_rcu_mult(call_rcu, call_rcu_sched); -+ -+ if (!sched_smp_initialized) -+ return 0; -+ -+ ret = cpuset_cpu_inactive(cpu); -+ if (ret) { -+ set_cpu_active(cpu, true); -+ return ret; -+ } -+ sched_domains_numa_masks_clear(cpu); -+ return 0; -+} -+ -+int sched_cpu_starting(unsigned int cpu) -+{ -+ sched_tick_start(cpu); -+ return 0; -+} -+ -+#ifdef CONFIG_HOTPLUG_CPU -+int sched_cpu_dying(unsigned int cpu) -+{ -+ struct rq *rq = cpu_rq(cpu); -+ unsigned long flags; -+ -+ /* Handle pending wakeups and then migrate everything off */ -+ sched_ttwu_pending(); -+ sched_tick_stop(cpu); -+ -+ local_irq_save(flags); -+ double_rq_lock(rq, cpu_rq(0)); -+ if (rq->rd) { -+ BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); -+ set_rq_offline(rq); -+ } -+ bind_zero(cpu); -+ double_rq_unlock(rq, cpu_rq(0)); -+ sched_start_tick(rq, cpu); -+ hrexpiry_clear(rq); -+ local_irq_restore(flags); -+ -+ return 0; -+} -+#endif -+ -+#if defined(CONFIG_SCHED_SMT) || defined(CONFIG_SCHED_MC) -+/* -+ * Cheaper version of the below functions in case support for SMT and MC is -+ * compiled in but CPUs have no siblings. -+ */ -+static bool sole_cpu_idle(struct rq *rq) -+{ -+ return rq_idle(rq); -+} -+#endif -+#ifdef CONFIG_SCHED_SMT -+static const cpumask_t *thread_cpumask(int cpu) -+{ -+ return topology_sibling_cpumask(cpu); -+} -+/* All this CPU's SMT siblings are idle */ -+static bool siblings_cpu_idle(struct rq *rq) -+{ -+ return cpumask_subset(&rq->thread_mask, &cpu_idle_map); -+} -+#endif -+#ifdef CONFIG_SCHED_MC -+static const cpumask_t *core_cpumask(int cpu) -+{ -+ return topology_core_cpumask(cpu); -+} -+/* All this CPU's shared cache siblings are idle */ -+static bool cache_cpu_idle(struct rq *rq) -+{ -+ return cpumask_subset(&rq->core_mask, &cpu_idle_map); -+} -+#endif -+ -+enum sched_domain_level { -+ SD_LV_NONE = 0, -+ SD_LV_SIBLING, -+ SD_LV_MC, -+ SD_LV_BOOK, -+ SD_LV_CPU, -+ SD_LV_NODE, -+ SD_LV_ALLNODES, -+ SD_LV_MAX -+}; -+ -+void __init sched_init_smp(void) -+{ -+ struct rq *rq, *other_rq, *leader; -+ struct sched_domain *sd; -+ int cpu, other_cpu, i; -+#ifdef CONFIG_SCHED_SMT -+ bool smt_threads = false; -+#endif -+ sched_init_numa(); -+ -+ /* -+ * There's no userspace yet to cause hotplug operations; hence all the -+ * cpu masks are stable and all blatant races in the below code cannot -+ * happen. -+ */ -+ mutex_lock(&sched_domains_mutex); -+ sched_init_domains(cpu_active_mask); -+ mutex_unlock(&sched_domains_mutex); -+ -+ /* Move init over to a non-isolated CPU */ -+ if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0) -+ BUG(); -+ -+ mutex_lock(&sched_domains_mutex); -+ local_irq_disable(); -+ lock_all_rqs(); -+ /* -+ * Set up the relative cache distance of each online cpu from each -+ * other in a simple array for quick lookup. Locality is determined -+ * by the closest sched_domain that CPUs are separated by. CPUs with -+ * shared cache in SMT and MC are treated as local. Separate CPUs -+ * (within the same package or physically) within the same node are -+ * treated as not local. CPUs not even in the same domain (different -+ * nodes) are treated as very distant. -+ */ -+ for_each_online_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ -+ /* First check if this cpu is in the same node */ -+ for_each_domain(cpu, sd) { -+ if (sd->level > SD_LV_MC) -+ continue; -+ leader = NULL; -+ /* Set locality to local node if not already found lower */ -+ for_each_cpu(other_cpu, sched_domain_span(sd)) { -+ if (rqshare == RQSHARE_SMP) { -+ other_rq = cpu_rq(other_cpu); -+ -+ /* Set the smp_leader to the first CPU */ -+ if (!leader) -+ leader = rq; -+ other_rq->smp_leader = leader; -+ } -+ -+ if (rq->cpu_locality[other_cpu] > 3) -+ rq->cpu_locality[other_cpu] = 3; -+ } -+ } -+ -+ /* -+ * Each runqueue has its own function in case it doesn't have -+ * siblings of its own allowing mixed topologies. -+ */ -+#ifdef CONFIG_SCHED_MC -+ leader = NULL; -+ if (cpumask_weight(core_cpumask(cpu)) > 1) { -+ cpumask_copy(&rq->core_mask, core_cpumask(cpu)); -+ cpumask_clear_cpu(cpu, &rq->core_mask); -+ for_each_cpu(other_cpu, core_cpumask(cpu)) { -+ if (rqshare == RQSHARE_MC) { -+ other_rq = cpu_rq(other_cpu); -+ -+ /* Set the mc_leader to the first CPU */ -+ if (!leader) -+ leader = rq; -+ other_rq->mc_leader = leader; -+ } -+ if (rq->cpu_locality[other_cpu] > 2) -+ rq->cpu_locality[other_cpu] = 2; -+ } -+ rq->cache_idle = cache_cpu_idle; -+ } -+#endif -+#ifdef CONFIG_SCHED_SMT -+ leader = NULL; -+ if (cpumask_weight(thread_cpumask(cpu)) > 1) { -+ cpumask_copy(&rq->thread_mask, thread_cpumask(cpu)); -+ cpumask_clear_cpu(cpu, &rq->thread_mask); -+ for_each_cpu(other_cpu, thread_cpumask(cpu)) { -+ if (rqshare == RQSHARE_SMT) { -+ other_rq = cpu_rq(other_cpu); -+ -+ /* Set the smt_leader to the first CPU */ -+ if (!leader) -+ leader = rq; -+ other_rq->smt_leader = leader; -+ } -+ if (rq->cpu_locality[other_cpu] > 1) -+ rq->cpu_locality[other_cpu] = 1; -+ } -+ rq->siblings_idle = siblings_cpu_idle; -+ smt_threads = true; -+ } -+#endif -+ } -+ -+#ifdef CONFIG_SMT_NICE -+ if (smt_threads) { -+ check_siblings = &check_smt_siblings; -+ wake_siblings = &wake_smt_siblings; -+ smt_schedule = &smt_should_schedule; -+ } -+#endif -+ unlock_all_rqs(); -+ local_irq_enable(); -+ mutex_unlock(&sched_domains_mutex); -+ -+ for_each_online_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ -+ for_each_online_cpu(other_cpu) { -+ if (other_cpu <= cpu) -+ continue; -+ printk(KERN_DEBUG "MuQSS locality CPU %d to %d: %d\n", cpu, other_cpu, rq->cpu_locality[other_cpu]); -+ } -+ } -+ -+ for_each_online_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ leader = rq->smp_leader; -+ -+ rq_lock(rq); -+ if (leader && rq != leader) { -+ printk(KERN_INFO "Sharing SMP runqueue from CPU %d to CPU %d\n", -+ leader->cpu, rq->cpu); -+ kfree(rq->node); -+ kfree(rq->sl); -+ kfree(rq->lock); -+ rq->node = leader->node; -+ rq->sl = leader->sl; -+ rq->lock = leader->lock; -+ barrier(); -+ /* To make up for not unlocking the freed runlock */ -+ preempt_enable(); -+ } else -+ rq_unlock(rq); -+ } -+ -+#ifdef CONFIG_SCHED_MC -+ for_each_online_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ leader = rq->mc_leader; -+ -+ rq_lock(rq); -+ if (leader && rq != leader) { -+ printk(KERN_INFO "Sharing MC runqueue from CPU %d to CPU %d\n", -+ leader->cpu, rq->cpu); -+ kfree(rq->node); -+ kfree(rq->sl); -+ kfree(rq->lock); -+ rq->node = leader->node; -+ rq->sl = leader->sl; -+ rq->lock = leader->lock; -+ barrier(); -+ /* To make up for not unlocking the freed runlock */ -+ preempt_enable(); -+ } else -+ rq_unlock(rq); -+ } -+#endif /* CONFIG_SCHED_MC */ -+ -+#ifdef CONFIG_SCHED_SMT -+ for_each_online_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ -+ leader = rq->smt_leader; -+ -+ rq_lock(rq); -+ if (leader && rq != leader) { -+ printk(KERN_INFO "Sharing SMT runqueue from CPU %d to CPU %d\n", -+ leader->cpu, rq->cpu); -+ kfree(rq->node); -+ kfree(rq->sl); -+ kfree(rq->lock); -+ rq->node = leader->node; -+ rq->sl = leader->sl; -+ rq->lock = leader->lock; -+ barrier(); -+ /* To make up for not unlocking the freed runlock */ -+ preempt_enable(); -+ } else -+ rq_unlock(rq); -+ } -+#endif /* CONFIG_SCHED_SMT */ -+ -+ total_runqueues = 0; -+ for_each_possible_cpu(cpu) { -+ int locality, total_rqs = 0, total_cpus = 0; -+ -+ rq = cpu_rq(cpu); -+ if ( -+#ifdef CONFIG_SCHED_MC -+ (rq->mc_leader == rq) && -+#endif -+#ifdef CONFIG_SCHED_SMT -+ (rq->smt_leader == rq) && -+#endif -+ (rq->smp_leader == rq)) -+ total_runqueues++; -+ -+ for (locality = 0; locality <= 4; locality++) { -+ int test_cpu; -+ -+ for_each_possible_cpu(test_cpu) { -+ /* Work from each CPU up instead of every rq -+ * starting at CPU 0 */ -+ other_cpu = test_cpu + cpu; -+ other_cpu %= num_possible_cpus(); -+ other_rq = cpu_rq(other_cpu); -+ -+ if (rq->cpu_locality[other_cpu] == locality) { -+ rq->cpu_order[total_cpus++] = other_rq; -+ if ( -+ -+#ifdef CONFIG_SCHED_MC -+ (other_rq->mc_leader == other_rq) && -+#endif -+#ifdef CONFIG_SCHED_SMT -+ (other_rq->smt_leader == other_rq) && -+#endif -+ (other_rq->smp_leader == other_rq)) -+ rq->rq_order[total_rqs++] = other_rq; -+ } -+ } -+ } -+ } -+ -+ for_each_possible_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ for (i = 0; i < total_runqueues; i++) { -+ printk(KERN_DEBUG "CPU %d RQ order %d RQ %d\n", cpu, i, -+ rq->rq_order[i]->cpu); -+ } -+ } -+ for_each_possible_cpu(cpu) { -+ rq = cpu_rq(cpu); -+ for (i = 0; i < num_possible_cpus(); i++) { -+ printk(KERN_DEBUG "CPU %d CPU order %d RQ %d\n", cpu, i, -+ rq->cpu_order[i]->cpu); -+ } -+ } -+ switch (rqshare) { -+ case RQSHARE_SMP: -+ printk(KERN_INFO "MuQSS runqueue share type SMP total runqueues: %d\n", -+ total_runqueues); -+ break; -+ case RQSHARE_MC: -+ printk(KERN_INFO "MuQSS runqueue share type MC total runqueues: %d\n", -+ total_runqueues); -+ break; -+ case RQSHARE_SMT: -+ printk(KERN_INFO "MuQSS runqueue share type SMT total runqueues: %d\n", -+ total_runqueues); -+ break; -+ case RQSHARE_NONE: -+ printk(KERN_INFO "MuQSS runqueue share type none total runqueues: %d\n", -+ total_runqueues); -+ break; -+ } -+ -+ sched_smp_initialized = true; -+} -+#else -+void __init sched_init_smp(void) -+{ -+ sched_smp_initialized = true; -+} -+#endif /* CONFIG_SMP */ -+ -+int in_sched_functions(unsigned long addr) -+{ -+ return in_lock_functions(addr) || -+ (addr >= (unsigned long)__sched_text_start -+ && addr < (unsigned long)__sched_text_end); -+} -+ -+#ifdef CONFIG_CGROUP_SCHED -+/* task group related information */ -+struct task_group { -+ struct cgroup_subsys_state css; -+ -+ struct rcu_head rcu; -+ struct list_head list; -+ -+ struct task_group *parent; -+ struct list_head siblings; -+ struct list_head children; -+}; -+ -+/* -+ * Default task group. -+ * Every task in system belongs to this group at bootup. -+ */ -+struct task_group root_task_group; -+LIST_HEAD(task_groups); -+ -+/* Cacheline aligned slab cache for task_group */ -+static struct kmem_cache *task_group_cache __read_mostly; -+#endif /* CONFIG_CGROUP_SCHED */ -+ -+void __init sched_init(void) -+{ -+#ifdef CONFIG_SMP -+ int cpu_ids; -+#endif -+ int i; -+ struct rq *rq; -+ -+ wait_bit_init(); -+ -+ prio_ratios[0] = 128; -+ for (i = 1 ; i < NICE_WIDTH ; i++) -+ prio_ratios[i] = prio_ratios[i - 1] * 11 / 10; -+ -+ skiplist_node_init(&init_task.node); -+ -+#ifdef CONFIG_SMP -+ init_defrootdomain(); -+ cpumask_clear(&cpu_idle_map); -+#else -+ uprq = &per_cpu(runqueues, 0); -+#endif -+ -+#ifdef CONFIG_CGROUP_SCHED -+ task_group_cache = KMEM_CACHE(task_group, 0); -+ -+ list_add(&root_task_group.list, &task_groups); -+ INIT_LIST_HEAD(&root_task_group.children); -+ INIT_LIST_HEAD(&root_task_group.siblings); -+#endif /* CONFIG_CGROUP_SCHED */ -+ for_each_possible_cpu(i) { -+ rq = cpu_rq(i); -+ rq->node = kmalloc(sizeof(skiplist_node), GFP_ATOMIC); -+ skiplist_init(rq->node); -+ rq->sl = new_skiplist(rq->node); -+ rq->lock = kmalloc(sizeof(raw_spinlock_t), GFP_ATOMIC); -+ raw_spin_lock_init(rq->lock); -+ rq->nr_running = 0; -+ rq->nr_uninterruptible = 0; -+ rq->nr_switches = 0; -+ rq->clock = rq->old_clock = rq->last_niffy = rq->niffies = 0; -+ rq->last_jiffy = jiffies; -+ rq->user_ns = rq->nice_ns = rq->softirq_ns = rq->system_ns = -+ rq->iowait_ns = rq->idle_ns = 0; -+ rq->dither = 0; -+ set_rq_task(rq, &init_task); -+ rq->iso_ticks = 0; -+ rq->iso_refractory = false; -+#ifdef CONFIG_SMP -+ rq->smp_leader = rq; -+#ifdef CONFIG_SCHED_MC -+ rq->mc_leader = rq; -+#endif -+#ifdef CONFIG_SCHED_SMT -+ rq->smt_leader = rq; -+#endif -+ rq->sd = NULL; -+ rq->rd = NULL; -+ rq->online = false; -+ rq->cpu = i; -+ rq_attach_root(rq, &def_root_domain); -+#endif -+ init_rq_hrexpiry(rq); -+ atomic_set(&rq->nr_iowait, 0); -+ } -+ -+#ifdef CONFIG_SMP -+ cpu_ids = i; -+ /* -+ * Set the base locality for cpu cache distance calculation to -+ * "distant" (3). Make sure the distance from a CPU to itself is 0. -+ */ -+ for_each_possible_cpu(i) { -+ int j; -+ -+ rq = cpu_rq(i); -+#ifdef CONFIG_SCHED_SMT -+ rq->siblings_idle = sole_cpu_idle; -+#endif -+#ifdef CONFIG_SCHED_MC -+ rq->cache_idle = sole_cpu_idle; -+#endif -+ rq->cpu_locality = kmalloc(cpu_ids * sizeof(int *), GFP_ATOMIC); -+ for_each_possible_cpu(j) { -+ if (i == j) -+ rq->cpu_locality[j] = 0; -+ else -+ rq->cpu_locality[j] = 4; -+ } -+ rq->rq_order = kmalloc(cpu_ids * sizeof(struct rq *), GFP_ATOMIC); -+ rq->cpu_order = kmalloc(cpu_ids * sizeof(struct rq *), GFP_ATOMIC); -+ rq->rq_order[0] = rq->cpu_order[0] = rq; -+ for (j = 1; j < cpu_ids; j++) -+ rq->rq_order[j] = rq->cpu_order[j] = cpu_rq(j); -+ } -+#endif -+ -+ /* -+ * The boot idle thread does lazy MMU switching as well: -+ */ -+ mmgrab(&init_mm); -+ enter_lazy_tlb(&init_mm, current); -+ -+ /* -+ * Make us the idle thread. Technically, schedule() should not be -+ * called from this thread, however somewhere below it might be, -+ * but because we are the idle thread, we just pick up running again -+ * when this runqueue becomes "idle". -+ */ -+ init_idle(current, smp_processor_id()); -+ -+#ifdef CONFIG_SMP -+ idle_thread_set_boot_cpu(); -+#endif /* SMP */ -+ -+ init_schedstats(); -+} -+ -+#ifdef CONFIG_DEBUG_ATOMIC_SLEEP -+static inline int preempt_count_equals(int preempt_offset) -+{ -+ int nested = preempt_count() + rcu_preempt_depth(); -+ -+ return (nested == preempt_offset); -+} -+ -+void __might_sleep(const char *file, int line, int preempt_offset) -+{ -+ /* -+ * Blocking primitives will set (and therefore destroy) current->state, -+ * since we will exit with TASK_RUNNING make sure we enter with it, -+ * otherwise we will destroy state. -+ */ -+ WARN_ONCE(current->state != TASK_RUNNING && current->task_state_change, -+ "do not call blocking ops when !TASK_RUNNING; " -+ "state=%lx set at [<%p>] %pS\n", -+ current->state, -+ (void *)current->task_state_change, -+ (void *)current->task_state_change); -+ -+ ___might_sleep(file, line, preempt_offset); -+} -+EXPORT_SYMBOL(__might_sleep); -+ -+void ___might_sleep(const char *file, int line, int preempt_offset) -+{ -+ /* Ratelimiting timestamp: */ -+ static unsigned long prev_jiffy; -+ -+ unsigned long preempt_disable_ip; -+ -+ /* WARN_ON_ONCE() by default, no rate limit required: */ -+ rcu_sleep_check(); -+ -+ if ((preempt_count_equals(preempt_offset) && !irqs_disabled() && -+ !is_idle_task(current)) || -+ system_state == SYSTEM_BOOTING || system_state > SYSTEM_RUNNING || -+ oops_in_progress) -+ return; -+ -+ if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy) -+ return; -+ prev_jiffy = jiffies; -+ -+ /* Save this before calling printk(), since that will clobber it: */ -+ preempt_disable_ip = get_preempt_disable_ip(current); -+ -+ printk(KERN_ERR -+ "BUG: sleeping function called from invalid context at %s:%d\n", -+ file, line); -+ printk(KERN_ERR -+ "in_atomic(): %d, irqs_disabled(): %d, pid: %d, name: %s\n", -+ in_atomic(), irqs_disabled(), -+ current->pid, current->comm); -+ -+ if (task_stack_end_corrupted(current)) -+ printk(KERN_EMERG "Thread overran stack, or stack corrupted\n"); -+ -+ debug_show_held_locks(current); -+ if (irqs_disabled()) -+ print_irqtrace_events(current); -+ if (IS_ENABLED(CONFIG_DEBUG_PREEMPT) -+ && !preempt_count_equals(preempt_offset)) { -+ pr_err("Preemption disabled at:"); -+ print_ip_sym(preempt_disable_ip); -+ pr_cont("\n"); -+ } -+ dump_stack(); -+ add_taint(TAINT_WARN, LOCKDEP_STILL_OK); -+} -+EXPORT_SYMBOL(___might_sleep); -+#endif -+ -+#ifdef CONFIG_MAGIC_SYSRQ -+static inline void normalise_rt_tasks(void) -+{ -+ struct task_struct *g, *p; -+ unsigned long flags; -+ struct rq *rq; -+ -+ read_lock(&tasklist_lock); -+ for_each_process_thread(g, p) { -+ /* -+ * Only normalize user tasks: -+ */ -+ if (p->flags & PF_KTHREAD) -+ continue; -+ -+ if (!rt_task(p) && !iso_task(p)) -+ continue; -+ -+ rq = task_rq_lock(p, &flags); -+ __setscheduler(p, rq, SCHED_NORMAL, 0, false); -+ task_rq_unlock(rq, p, &flags); -+ } -+ read_unlock(&tasklist_lock); -+} -+ -+void normalize_rt_tasks(void) -+{ -+ normalise_rt_tasks(); -+} -+#endif /* CONFIG_MAGIC_SYSRQ */ -+ -+#if defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) -+/* -+ * These functions are only useful for the IA64 MCA handling, or kdb. -+ * -+ * They can only be called when the whole system has been -+ * stopped - every CPU needs to be quiescent, and no scheduling -+ * activity can take place. Using them for anything else would -+ * be a serious bug, and as a result, they aren't even visible -+ * under any other configuration. -+ */ -+ -+/** -+ * curr_task - return the current task for a given CPU. -+ * @cpu: the processor in question. -+ * -+ * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED! -+ * -+ * Return: The current task for @cpu. -+ */ -+struct task_struct *curr_task(int cpu) -+{ -+ return cpu_curr(cpu); -+} -+ -+#endif /* defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) */ -+ -+#ifdef CONFIG_IA64 -+/** -+ * set_curr_task - set the current task for a given CPU. -+ * @cpu: the processor in question. -+ * @p: the task pointer to set. -+ * -+ * Description: This function must only be used when non-maskable interrupts -+ * are serviced on a separate stack. It allows the architecture to switch the -+ * notion of the current task on a CPU in a non-blocking manner. This function -+ * must be called with all CPU's synchronised, and interrupts disabled, the -+ * and caller must save the original value of the current task (see -+ * curr_task() above) and restore that value before reenabling interrupts and -+ * re-starting the system. -+ * -+ * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED! -+ */ -+void ia64_set_curr_task(int cpu, struct task_struct *p) -+{ -+ cpu_curr(cpu) = p; -+} -+ -+#endif -+ -+void init_idle_bootup_task(struct task_struct *idle) -+{} -+ -+#ifdef CONFIG_SCHED_DEBUG -+__read_mostly bool sched_debug_enabled; -+ -+void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, -+ struct seq_file *m) -+{} -+ -+void proc_sched_set_task(struct task_struct *p) -+{} -+#endif -+ -+#ifdef CONFIG_SMP -+#define SCHED_LOAD_SHIFT (10) -+#define SCHED_LOAD_SCALE (1L << SCHED_LOAD_SHIFT) -+ -+unsigned long default_scale_freq_power(struct sched_domain *sd, int cpu) -+{ -+ return SCHED_LOAD_SCALE; -+} -+ -+unsigned long default_scale_smt_power(struct sched_domain *sd, int cpu) -+{ -+ unsigned long weight = cpumask_weight(sched_domain_span(sd)); -+ unsigned long smt_gain = sd->smt_gain; -+ -+ smt_gain /= weight; -+ -+ return smt_gain; -+} -+#endif -+ -+#ifdef CONFIG_CGROUP_SCHED -+static void sched_free_group(struct task_group *tg) -+{ -+ kmem_cache_free(task_group_cache, tg); -+} -+ -+/* allocate runqueue etc for a new task group */ -+struct task_group *sched_create_group(struct task_group *parent) -+{ -+ struct task_group *tg; -+ -+ tg = kmem_cache_alloc(task_group_cache, GFP_KERNEL | __GFP_ZERO); -+ if (!tg) -+ return ERR_PTR(-ENOMEM); -+ -+ return tg; -+} -+ -+void sched_online_group(struct task_group *tg, struct task_group *parent) -+{ -+} -+ -+/* rcu callback to free various structures associated with a task group */ -+static void sched_free_group_rcu(struct rcu_head *rhp) -+{ -+ /* Now it should be safe to free those cfs_rqs */ -+ sched_free_group(container_of(rhp, struct task_group, rcu)); -+} -+ -+void sched_destroy_group(struct task_group *tg) -+{ -+ /* Wait for possible concurrent references to cfs_rqs complete */ -+ call_rcu(&tg->rcu, sched_free_group_rcu); -+} -+ -+void sched_offline_group(struct task_group *tg) -+{ -+} -+ -+static inline struct task_group *css_tg(struct cgroup_subsys_state *css) -+{ -+ return css ? container_of(css, struct task_group, css) : NULL; -+} -+ -+static struct cgroup_subsys_state * -+cpu_cgroup_css_alloc(struct cgroup_subsys_state *parent_css) -+{ -+ struct task_group *parent = css_tg(parent_css); -+ struct task_group *tg; -+ -+ if (!parent) { -+ /* This is early initialization for the top cgroup */ -+ return &root_task_group.css; -+ } -+ -+ tg = sched_create_group(parent); -+ if (IS_ERR(tg)) -+ return ERR_PTR(-ENOMEM); -+ return &tg->css; -+} -+ -+/* Expose task group only after completing cgroup initialization */ -+static int cpu_cgroup_css_online(struct cgroup_subsys_state *css) -+{ -+ struct task_group *tg = css_tg(css); -+ struct task_group *parent = css_tg(css->parent); -+ -+ if (parent) -+ sched_online_group(tg, parent); -+ return 0; -+} -+ -+static void cpu_cgroup_css_released(struct cgroup_subsys_state *css) -+{ -+ struct task_group *tg = css_tg(css); -+ -+ sched_offline_group(tg); -+} -+ -+static void cpu_cgroup_css_free(struct cgroup_subsys_state *css) -+{ -+ struct task_group *tg = css_tg(css); -+ -+ /* -+ * Relies on the RCU grace period between css_released() and this. -+ */ -+ sched_free_group(tg); -+} -+ -+static void cpu_cgroup_fork(struct task_struct *task) -+{ -+} -+ -+static int cpu_cgroup_can_attach(struct cgroup_taskset *tset) -+{ -+ return 0; -+} -+ -+static void cpu_cgroup_attach(struct cgroup_taskset *tset) -+{ -+} -+ -+static struct cftype cpu_legacy_files[] = { -+ { } /* Terminate */ -+}; -+ -+static struct cftype cpu_files[] = { -+ { } /* terminate */ -+}; -+ -+static int cpu_extra_stat_show(struct seq_file *sf, -+ struct cgroup_subsys_state *css) -+{ -+ return 0; -+} -+ -+struct cgroup_subsys cpu_cgrp_subsys = { -+ .css_alloc = cpu_cgroup_css_alloc, -+ .css_online = cpu_cgroup_css_online, -+ .css_released = cpu_cgroup_css_released, -+ .css_free = cpu_cgroup_css_free, -+ .css_extra_stat_show = cpu_extra_stat_show, -+ .fork = cpu_cgroup_fork, -+ .can_attach = cpu_cgroup_can_attach, -+ .attach = cpu_cgroup_attach, -+ .legacy_cftypes = cpu_files, -+ .legacy_cftypes = cpu_legacy_files, -+ .dfl_cftypes = cpu_files, -+ .early_init = true, -+ .threaded = true, -+}; -+#endif /* CONFIG_CGROUP_SCHED */ -+ -+#undef CREATE_TRACE_POINTS -diff --git a/kernel/sched/MuQSS.h b/kernel/sched/MuQSS.h -new file mode 100644 -index 000000000000..e3687ebaeb71 ---- /dev/null -+++ b/kernel/sched/MuQSS.h -@@ -0,0 +1,881 @@ -+/* SPDX-License-Identifier: GPL-2.0 */ -+#ifndef MUQSS_SCHED_H -+#define MUQSS_SCHED_H -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#ifdef CONFIG_PARAVIRT -+#include -+#endif -+ -+#include "cpupri.h" -+ -+#ifdef CONFIG_SCHED_DEBUG -+# define SCHED_WARN_ON(x) WARN_ONCE(x, #x) -+#else -+# define SCHED_WARN_ON(x) ((void)(x)) -+#endif -+ -+/* task_struct::on_rq states: */ -+#define TASK_ON_RQ_QUEUED 1 -+#define TASK_ON_RQ_MIGRATING 2 -+ -+struct rq; -+ -+#if defined(CONFIG_IRQ_TIME_ACCOUNTING) || defined(CONFIG_PARAVIRT_TIME_ACCOUNTING) -+#define HAVE_SCHED_AVG_IRQ -+#endif -+ -+#ifdef CONFIG_SMP -+ -+static inline bool sched_asym_prefer(int a, int b) -+{ -+ return arch_asym_cpu_priority(a) > arch_asym_cpu_priority(b); -+} -+ -+/* -+ * We add the notion of a root-domain which will be used to define per-domain -+ * variables. Each exclusive cpuset essentially defines an island domain by -+ * fully partitioning the member cpus from any other cpuset. Whenever a new -+ * exclusive cpuset is created, we also create and attach a new root-domain -+ * object. -+ * -+ */ -+struct root_domain { -+ atomic_t refcount; -+ atomic_t rto_count; -+ struct rcu_head rcu; -+ cpumask_var_t span; -+ cpumask_var_t online; -+ -+ /* Indicate more than one runnable task for any CPU */ -+ bool overload; -+ -+ /* -+ * The bit corresponding to a CPU gets set here if such CPU has more -+ * than one runnable -deadline task (as it is below for RT tasks). -+ */ -+ cpumask_var_t dlo_mask; -+ atomic_t dlo_count; -+ /* Replace unused CFS structures with void */ -+ //struct dl_bw dl_bw; -+ //struct cpudl cpudl; -+ void *dl_bw; -+ void *cpudl; -+ -+ /* -+ * The "RT overload" flag: it gets set if a CPU has more than -+ * one runnable RT task. -+ */ -+ cpumask_var_t rto_mask; -+ //struct cpupri cpupri; -+ void *cpupri; -+ -+ unsigned long max_cpu_capacity; -+}; -+ -+extern struct root_domain def_root_domain; -+extern struct mutex sched_domains_mutex; -+ -+extern void init_defrootdomain(void); -+extern int sched_init_domains(const struct cpumask *cpu_map); -+extern void rq_attach_root(struct rq *rq, struct root_domain *rd); -+ -+static inline void cpupri_cleanup(void __maybe_unused *cpupri) -+{ -+} -+ -+static inline void cpudl_cleanup(void __maybe_unused *cpudl) -+{ -+} -+ -+static inline void init_dl_bw(void __maybe_unused *dl_bw) -+{ -+} -+ -+static inline int cpudl_init(void __maybe_unused *dl_bw) -+{ -+ return 0; -+} -+ -+static inline int cpupri_init(void __maybe_unused *cpupri) -+{ -+ return 0; -+} -+#endif /* CONFIG_SMP */ -+ -+/* -+ * This is the main, per-CPU runqueue data structure. -+ * This data should only be modified by the local cpu. -+ */ -+struct rq { -+ raw_spinlock_t *lock; -+ raw_spinlock_t *orig_lock; -+ -+ struct task_struct *curr, *idle, *stop; -+ struct mm_struct *prev_mm; -+ -+ unsigned int nr_running; -+ /* -+ * This is part of a global counter where only the total sum -+ * over all CPUs matters. A task can increase this counter on -+ * one CPU and if it got migrated afterwards it may decrease -+ * it on another CPU. Always updated under the runqueue lock: -+ */ -+ unsigned long nr_uninterruptible; -+ u64 nr_switches; -+ -+ /* Stored data about rq->curr to work outside rq lock */ -+ u64 rq_deadline; -+ int rq_prio; -+ -+ /* Best queued id for use outside lock */ -+ u64 best_key; -+ -+ unsigned long last_scheduler_tick; /* Last jiffy this RQ ticked */ -+ unsigned long last_jiffy; /* Last jiffy this RQ updated rq clock */ -+ u64 niffies; /* Last time this RQ updated rq clock */ -+ u64 last_niffy; /* Last niffies as updated by local clock */ -+ u64 last_jiffy_niffies; /* Niffies @ last_jiffy */ -+ -+ u64 load_update; /* When we last updated load */ -+ unsigned long load_avg; /* Rolling load average */ -+#ifdef HAVE_SCHED_AVG_IRQ -+ u64 irq_load_update; /* When we last updated IRQ load */ -+ unsigned long irq_load_avg; /* Rolling IRQ load average */ -+#endif -+#ifdef CONFIG_SMT_NICE -+ struct mm_struct *rq_mm; -+ int rq_smt_bias; /* Policy/nice level bias across smt siblings */ -+#endif -+ /* Accurate timekeeping data */ -+ unsigned long user_ns, nice_ns, irq_ns, softirq_ns, system_ns, -+ iowait_ns, idle_ns; -+ atomic_t nr_iowait; -+ -+ skiplist_node *node; -+ skiplist *sl; -+#ifdef CONFIG_SMP -+ struct task_struct *preempt; /* Preempt triggered on this task */ -+ struct task_struct *preempting; /* Hint only, what task is preempting */ -+ -+ int cpu; /* cpu of this runqueue */ -+ bool online; -+ -+ struct root_domain *rd; -+ struct sched_domain *sd; -+ -+ unsigned long cpu_capacity_orig; -+ -+ int *cpu_locality; /* CPU relative cache distance */ -+ struct rq **rq_order; /* Shared RQs ordered by relative cache distance */ -+ struct rq **cpu_order; /* RQs of discrete CPUs ordered by distance */ -+ -+ struct rq *smp_leader; /* First physical CPU per node */ -+#ifdef CONFIG_SCHED_SMT -+ struct rq *smt_leader; /* First logical CPU in SMT siblings */ -+ cpumask_t thread_mask; -+ bool (*siblings_idle)(struct rq *rq); -+ /* See if all smt siblings are idle */ -+#endif /* CONFIG_SCHED_SMT */ -+#ifdef CONFIG_SCHED_MC -+ struct rq *mc_leader; /* First logical CPU in MC siblings */ -+ cpumask_t core_mask; -+ bool (*cache_idle)(struct rq *rq); -+ /* See if all cache siblings are idle */ -+#endif /* CONFIG_SCHED_MC */ -+#endif /* CONFIG_SMP */ -+#ifdef CONFIG_IRQ_TIME_ACCOUNTING -+ u64 prev_irq_time; -+#endif /* CONFIG_IRQ_TIME_ACCOUNTING */ -+#ifdef CONFIG_PARAVIRT -+ u64 prev_steal_time; -+#endif /* CONFIG_PARAVIRT */ -+#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING -+ u64 prev_steal_time_rq; -+#endif /* CONFIG_PARAVIRT_TIME_ACCOUNTING */ -+ -+ u64 clock, old_clock, last_tick; -+ u64 clock_task; -+ int dither; -+ -+ int iso_ticks; -+ bool iso_refractory; -+ -+#ifdef CONFIG_HIGH_RES_TIMERS -+ struct hrtimer hrexpiry_timer; -+#endif -+ -+ int rt_nr_running; /* Number real time tasks running */ -+#ifdef CONFIG_SCHEDSTATS -+ -+ /* latency stats */ -+ struct sched_info rq_sched_info; -+ unsigned long long rq_cpu_time; -+ /* could above be rq->cfs_rq.exec_clock + rq->rt_rq.rt_runtime ? */ -+ -+ /* sys_sched_yield() stats */ -+ unsigned int yld_count; -+ -+ /* schedule() stats */ -+ unsigned int sched_switch; -+ unsigned int sched_count; -+ unsigned int sched_goidle; -+ -+ /* try_to_wake_up() stats */ -+ unsigned int ttwu_count; -+ unsigned int ttwu_local; -+#endif /* CONFIG_SCHEDSTATS */ -+ -+#ifdef CONFIG_SMP -+ struct llist_head wake_list; -+#endif -+ -+#ifdef CONFIG_CPU_IDLE -+ /* Must be inspected within a rcu lock section */ -+ struct cpuidle_state *idle_state; -+#endif -+}; -+ -+#ifdef CONFIG_SMP -+struct rq *cpu_rq(int cpu); -+#endif -+ -+#ifndef CONFIG_SMP -+extern struct rq *uprq; -+#define cpu_rq(cpu) (uprq) -+#define this_rq() (uprq) -+#define raw_rq() (uprq) -+#define task_rq(p) (uprq) -+#define cpu_curr(cpu) ((uprq)->curr) -+#else /* CONFIG_SMP */ -+DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); -+#define this_rq() this_cpu_ptr(&runqueues) -+#define raw_rq() raw_cpu_ptr(&runqueues) -+#define task_rq(p) cpu_rq(task_cpu(p)) -+#endif /* CONFIG_SMP */ -+ -+static inline int task_current(struct rq *rq, struct task_struct *p) -+{ -+ return rq->curr == p; -+} -+ -+static inline int task_running(struct rq *rq, struct task_struct *p) -+{ -+#ifdef CONFIG_SMP -+ return p->on_cpu; -+#else -+ return task_current(rq, p); -+#endif -+} -+ -+static inline void rq_lock(struct rq *rq) -+ __acquires(rq->lock) -+{ -+ raw_spin_lock(rq->lock); -+} -+ -+static inline void rq_unlock(struct rq *rq) -+ __releases(rq->lock) -+{ -+ raw_spin_unlock(rq->lock); -+} -+ -+static inline void rq_lock_irq(struct rq *rq) -+ __acquires(rq->lock) -+{ -+ raw_spin_lock_irq(rq->lock); -+} -+ -+static inline void rq_unlock_irq(struct rq *rq) -+ __releases(rq->lock) -+{ -+ raw_spin_unlock_irq(rq->lock); -+} -+ -+static inline void rq_lock_irqsave(struct rq *rq, unsigned long *flags) -+ __acquires(rq->lock) -+{ -+ raw_spin_lock_irqsave(rq->lock, *flags); -+} -+ -+static inline void rq_unlock_irqrestore(struct rq *rq, unsigned long *flags) -+ __releases(rq->lock) -+{ -+ raw_spin_unlock_irqrestore(rq->lock, *flags); -+} -+ -+static inline struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags) -+ __acquires(p->pi_lock) -+ __acquires(rq->lock) -+{ -+ struct rq *rq; -+ -+ while (42) { -+ raw_spin_lock_irqsave(&p->pi_lock, *flags); -+ rq = task_rq(p); -+ raw_spin_lock(rq->lock); -+ if (likely(rq == task_rq(p))) -+ break; -+ raw_spin_unlock(rq->lock); -+ raw_spin_unlock_irqrestore(&p->pi_lock, *flags); -+ } -+ return rq; -+} -+ -+static inline void task_rq_unlock(struct rq *rq, struct task_struct *p, unsigned long *flags) -+ __releases(rq->lock) -+ __releases(p->pi_lock) -+{ -+ rq_unlock(rq); -+ raw_spin_unlock_irqrestore(&p->pi_lock, *flags); -+} -+ -+static inline struct rq *__task_rq_lock(struct task_struct *p) -+ __acquires(rq->lock) -+{ -+ struct rq *rq; -+ -+ lockdep_assert_held(&p->pi_lock); -+ -+ while (42) { -+ rq = task_rq(p); -+ raw_spin_lock(rq->lock); -+ if (likely(rq == task_rq(p))) -+ break; -+ raw_spin_unlock(rq->lock); -+ } -+ return rq; -+} -+ -+static inline void __task_rq_unlock(struct rq *rq) -+{ -+ rq_unlock(rq); -+} -+ -+/* -+ * {de,en}queue flags: Most not used on MuQSS. -+ * -+ * DEQUEUE_SLEEP - task is no longer runnable -+ * ENQUEUE_WAKEUP - task just became runnable -+ * -+ * SAVE/RESTORE - an otherwise spurious dequeue/enqueue, done to ensure tasks -+ * are in a known state which allows modification. Such pairs -+ * should preserve as much state as possible. -+ * -+ * MOVE - paired with SAVE/RESTORE, explicitly does not preserve the location -+ * in the runqueue. -+ * -+ * ENQUEUE_HEAD - place at front of runqueue (tail if not specified) -+ * ENQUEUE_REPLENISH - CBS (replenish runtime and postpone deadline) -+ * ENQUEUE_MIGRATED - the task was migrated during wakeup -+ * -+ */ -+ -+#define DEQUEUE_SAVE 0x02 /* matches ENQUEUE_RESTORE */ -+ -+#define ENQUEUE_RESTORE 0x02 -+ -+static inline u64 __rq_clock_broken(struct rq *rq) -+{ -+ return READ_ONCE(rq->clock); -+} -+ -+static inline u64 rq_clock(struct rq *rq) -+{ -+ lockdep_assert_held(rq->lock); -+ -+ return rq->clock; -+} -+ -+static inline u64 rq_clock_task(struct rq *rq) -+{ -+ lockdep_assert_held(rq->lock); -+ -+ return rq->clock_task; -+} -+ -+#ifdef CONFIG_NUMA -+enum numa_topology_type { -+ NUMA_DIRECT, -+ NUMA_GLUELESS_MESH, -+ NUMA_BACKPLANE, -+}; -+extern enum numa_topology_type sched_numa_topology_type; -+extern int sched_max_numa_distance; -+extern bool find_numa_distance(int distance); -+ -+extern void sched_init_numa(void); -+extern void sched_domains_numa_masks_set(unsigned int cpu); -+extern void sched_domains_numa_masks_clear(unsigned int cpu); -+#else -+static inline void sched_init_numa(void) { } -+static inline void sched_domains_numa_masks_set(unsigned int cpu) { } -+static inline void sched_domains_numa_masks_clear(unsigned int cpu) { } -+#endif -+ -+extern struct mutex sched_domains_mutex; -+extern struct static_key_false sched_schedstats; -+ -+#define rcu_dereference_check_sched_domain(p) \ -+ rcu_dereference_check((p), \ -+ lockdep_is_held(&sched_domains_mutex)) -+ -+#ifdef CONFIG_SMP -+ -+/* -+ * The domain tree (rq->sd) is protected by RCU's quiescent state transition. -+ * See detach_destroy_domains: synchronize_sched for details. -+ * -+ * The domain tree of any CPU may only be accessed from within -+ * preempt-disabled sections. -+ */ -+#define for_each_domain(cpu, __sd) \ -+ for (__sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd); \ -+ __sd; __sd = __sd->parent) -+ -+#define for_each_lower_domain(sd) for (; sd; sd = sd->child) -+ -+/** -+ * highest_flag_domain - Return highest sched_domain containing flag. -+ * @cpu: The cpu whose highest level of sched domain is to -+ * be returned. -+ * @flag: The flag to check for the highest sched_domain -+ * for the given cpu. -+ * -+ * Returns the highest sched_domain of a cpu which contains the given flag. -+ */ -+static inline struct sched_domain *highest_flag_domain(int cpu, int flag) -+{ -+ struct sched_domain *sd, *hsd = NULL; -+ -+ for_each_domain(cpu, sd) { -+ if (!(sd->flags & flag)) -+ break; -+ hsd = sd; -+ } -+ -+ return hsd; -+} -+ -+static inline struct sched_domain *lowest_flag_domain(int cpu, int flag) -+{ -+ struct sched_domain *sd; -+ -+ for_each_domain(cpu, sd) { -+ if (sd->flags & flag) -+ break; -+ } -+ -+ return sd; -+} -+ -+DECLARE_PER_CPU(struct sched_domain *, sd_llc); -+DECLARE_PER_CPU(int, sd_llc_size); -+DECLARE_PER_CPU(int, sd_llc_id); -+DECLARE_PER_CPU(struct sched_domain_shared *, sd_llc_shared); -+DECLARE_PER_CPU(struct sched_domain *, sd_numa); -+DECLARE_PER_CPU(struct sched_domain *, sd_asym); -+ -+struct sched_group_capacity { -+ atomic_t ref; -+ /* -+ * CPU capacity of this group, SCHED_CAPACITY_SCALE being max capacity -+ * for a single CPU. -+ */ -+ unsigned long capacity; -+ unsigned long min_capacity; /* Min per-CPU capacity in group */ -+ unsigned long next_update; -+ int imbalance; /* XXX unrelated to capacity but shared group state */ -+ -+#ifdef CONFIG_SCHED_DEBUG -+ int id; -+#endif -+ -+ unsigned long cpumask[0]; /* balance mask */ -+}; -+ -+struct sched_group { -+ struct sched_group *next; /* Must be a circular list */ -+ atomic_t ref; -+ -+ unsigned int group_weight; -+ struct sched_group_capacity *sgc; -+ int asym_prefer_cpu; /* cpu of highest priority in group */ -+ -+ /* -+ * The CPUs this group covers. -+ * -+ * NOTE: this field is variable length. (Allocated dynamically -+ * by attaching extra space to the end of the structure, -+ * depending on how many CPUs the kernel has booted up with) -+ */ -+ unsigned long cpumask[0]; -+}; -+ -+static inline struct cpumask *sched_group_span(struct sched_group *sg) -+{ -+ return to_cpumask(sg->cpumask); -+} -+ -+/* -+ * See build_balance_mask(). -+ */ -+static inline struct cpumask *group_balance_mask(struct sched_group *sg) -+{ -+ return to_cpumask(sg->sgc->cpumask); -+} -+ -+/** -+ * group_first_cpu - Returns the first cpu in the cpumask of a sched_group. -+ * @group: The group whose first cpu is to be returned. -+ */ -+static inline unsigned int group_first_cpu(struct sched_group *group) -+{ -+ return cpumask_first(sched_group_span(group)); -+} -+ -+ -+#if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL) -+void register_sched_domain_sysctl(void); -+void dirty_sched_domain_sysctl(int cpu); -+void unregister_sched_domain_sysctl(void); -+#else -+static inline void register_sched_domain_sysctl(void) -+{ -+} -+static inline void dirty_sched_domain_sysctl(int cpu) -+{ -+} -+static inline void unregister_sched_domain_sysctl(void) -+{ -+} -+#endif -+ -+extern void sched_ttwu_pending(void); -+extern void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask); -+extern void set_rq_online (struct rq *rq); -+extern void set_rq_offline(struct rq *rq); -+extern bool sched_smp_initialized; -+ -+static inline void update_group_capacity(struct sched_domain *sd, int cpu) -+{ -+} -+ -+static inline void trigger_load_balance(struct rq *rq) -+{ -+} -+ -+#define sched_feat(x) 0 -+ -+#else /* CONFIG_SMP */ -+ -+static inline void sched_ttwu_pending(void) { } -+ -+#endif /* CONFIG_SMP */ -+ -+#ifdef CONFIG_CPU_IDLE -+static inline void idle_set_state(struct rq *rq, -+ struct cpuidle_state *idle_state) -+{ -+ rq->idle_state = idle_state; -+} -+ -+static inline struct cpuidle_state *idle_get_state(struct rq *rq) -+{ -+ SCHED_WARN_ON(!rcu_read_lock_held()); -+ return rq->idle_state; -+} -+#else -+static inline void idle_set_state(struct rq *rq, -+ struct cpuidle_state *idle_state) -+{ -+} -+ -+static inline struct cpuidle_state *idle_get_state(struct rq *rq) -+{ -+ return NULL; -+} -+#endif -+ -+#ifdef CONFIG_SCHED_DEBUG -+extern bool sched_debug_enabled; -+#endif -+ -+extern void schedule_idle(void); -+ -+#ifdef CONFIG_IRQ_TIME_ACCOUNTING -+struct irqtime { -+ u64 total; -+ u64 tick_delta; -+ u64 irq_start_time; -+ struct u64_stats_sync sync; -+}; -+ -+DECLARE_PER_CPU(struct irqtime, cpu_irqtime); -+ -+/* -+ * Returns the irqtime minus the softirq time computed by ksoftirqd. -+ * Otherwise ksoftirqd's sum_exec_runtime is substracted its own runtime -+ * and never move forward. -+ */ -+static inline u64 irq_time_read(int cpu) -+{ -+ struct irqtime *irqtime = &per_cpu(cpu_irqtime, cpu); -+ unsigned int seq; -+ u64 total; -+ -+ do { -+ seq = __u64_stats_fetch_begin(&irqtime->sync); -+ total = irqtime->total; -+ } while (__u64_stats_fetch_retry(&irqtime->sync, seq)); -+ -+ return total; -+} -+#endif /* CONFIG_IRQ_TIME_ACCOUNTING */ -+ -+#ifdef CONFIG_SMP -+static inline int cpu_of(struct rq *rq) -+{ -+ return rq->cpu; -+} -+#else /* CONFIG_SMP */ -+static inline int cpu_of(struct rq *rq) -+{ -+ return 0; -+} -+#endif -+ -+#ifdef CONFIG_CPU_FREQ -+DECLARE_PER_CPU(struct update_util_data *, cpufreq_update_util_data); -+ -+static inline void cpufreq_trigger(struct rq *rq, unsigned int flags) -+{ -+ struct update_util_data *data; -+ -+ data = rcu_dereference_sched(*per_cpu_ptr(&cpufreq_update_util_data, -+ cpu_of(rq))); -+ -+ if (data) -+ data->func(data, rq->niffies, flags); -+} -+#else -+static inline void cpufreq_trigger(struct rq *rq, unsigned int flag) -+{ -+} -+#endif /* CONFIG_CPU_FREQ */ -+ -+#ifdef arch_scale_freq_capacity -+#ifndef arch_scale_freq_invariant -+#define arch_scale_freq_invariant() (true) -+#endif -+#else /* arch_scale_freq_capacity */ -+#define arch_scale_freq_invariant() (false) -+#endif -+ -+/* -+ * This should only be called when current == rq->idle. Dodgy workaround for -+ * when softirqs are pending and we are in the idle loop. Setting current to -+ * resched will kick us out of the idle loop and the softirqs will be serviced -+ * on our next pass through schedule(). -+ */ -+static inline bool softirq_pending(int cpu) -+{ -+ if (likely(!local_softirq_pending())) -+ return false; -+ set_tsk_need_resched(current); -+ return true; -+} -+ -+#ifdef CONFIG_64BIT -+static inline u64 read_sum_exec_runtime(struct task_struct *t) -+{ -+ return tsk_seruntime(t); -+} -+#else -+struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags); -+void task_rq_unlock(struct rq *rq, struct task_struct *p, unsigned long *flags); -+ -+static inline u64 read_sum_exec_runtime(struct task_struct *t) -+{ -+ unsigned long flags; -+ u64 ns; -+ struct rq *rq; -+ -+ rq = task_rq_lock(t, &flags); -+ ns = tsk_seruntime(t); -+ task_rq_unlock(rq, t, &flags); -+ -+ return ns; -+} -+#endif -+ -+#ifndef arch_scale_freq_capacity -+static __always_inline -+unsigned long arch_scale_freq_capacity(int cpu) -+{ -+ return SCHED_CAPACITY_SCALE; -+} -+#endif -+ -+#ifdef CONFIG_NO_HZ_FULL -+extern bool sched_can_stop_tick(struct rq *rq); -+extern int __init sched_tick_offload_init(void); -+ -+/* -+ * Tick may be needed by tasks in the runqueue depending on their policy and -+ * requirements. If tick is needed, lets send the target an IPI to kick it out of -+ * nohz mode if necessary. -+ */ -+static inline void sched_update_tick_dependency(struct rq *rq) -+{ -+ int cpu; -+ -+ if (!tick_nohz_full_enabled()) -+ return; -+ -+ cpu = cpu_of(rq); -+ -+ if (!tick_nohz_full_cpu(cpu)) -+ return; -+ -+ if (sched_can_stop_tick(rq)) -+ tick_nohz_dep_clear_cpu(cpu, TICK_DEP_BIT_SCHED); -+ else -+ tick_nohz_dep_set_cpu(cpu, TICK_DEP_BIT_SCHED); -+} -+#else -+static inline int sched_tick_offload_init(void) { return 0; } -+static inline void sched_update_tick_dependency(struct rq *rq) { } -+#endif -+ -+#ifdef CONFIG_SMP -+ -+#ifndef arch_scale_cpu_capacity -+static __always_inline -+unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu) -+{ -+ if (sd && (sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1)) -+ return sd->smt_gain / sd->span_weight; -+ -+ return SCHED_CAPACITY_SCALE; -+} -+#endif -+#else -+#ifndef arch_scale_cpu_capacity -+static __always_inline -+unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu) -+{ -+ return SCHED_CAPACITY_SCALE; -+} -+#endif -+#endif -+ -+#define SCHED_FLAG_SUGOV 0x10000000 -+ -+static inline bool rt_rq_is_runnable(struct rq *rt_rq) -+{ -+ return rt_rq->rt_nr_running; -+} -+ -+#ifdef CONFIG_CPU_FREQ_GOV_SCHEDUTIL -+ -+static inline unsigned long cpu_bw_dl(struct rq *rq) -+{ -+ return 0; -+} -+ -+static inline unsigned long cpu_util_dl(struct rq *rq) -+{ -+ return 0; -+} -+ -+static inline unsigned long cpu_util_cfs(struct rq *rq) -+{ -+ unsigned long ret = READ_ONCE(rq->load_avg); -+ -+ if (ret > SCHED_CAPACITY_SCALE) -+ ret = SCHED_CAPACITY_SCALE; -+ return ret; -+} -+ -+static inline unsigned long cpu_util_rt(struct rq *rq) -+{ -+ unsigned long ret = READ_ONCE(rq->rt_nr_running); -+ -+ if (ret > SCHED_CAPACITY_SCALE) -+ ret = SCHED_CAPACITY_SCALE; -+ return ret; -+} -+ -+#ifdef HAVE_SCHED_AVG_IRQ -+static inline unsigned long cpu_util_irq(struct rq *rq) -+{ -+ unsigned long ret = READ_ONCE(rq->irq_load_avg); -+ -+ if (ret > SCHED_CAPACITY_SCALE) -+ ret = SCHED_CAPACITY_SCALE; -+ return ret; -+} -+ -+static inline -+unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned long max) -+{ -+ util *= (max - irq); -+ util /= max; -+ -+ return util; -+ -+} -+#else -+static inline unsigned long cpu_util_irq(struct rq *rq) -+{ -+ return 0; -+} -+ -+static inline -+unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned long max) -+{ -+ return util; -+} -+#endif -+#endif -+ -+#endif /* MUQSS_SCHED_H */ -diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c -index 3fffad3bc8a8..6b24e37325ae 100644 ---- a/kernel/sched/cpufreq_schedutil.c -+++ b/kernel/sched/cpufreq_schedutil.c -@@ -177,6 +177,12 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy, - return cpufreq_driver_resolve_freq(policy, freq); - } - -+#ifdef CONFIG_SCHED_MUQSS -+#define rt_rq_runnable(rq_rt) rt_rq_is_runnable(rq) -+#else -+#define rt_rq_runnable(rq_rt) rt_rq_is_runnable(&rq->rt) -+#endif -+ - /* - * This function computes an effective utilization for the given CPU, to be - * used for frequency selection given the linear relation: f = u * f_max. -@@ -205,7 +211,7 @@ static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu) - sg_cpu->max = max = arch_scale_cpu_capacity(NULL, sg_cpu->cpu); - sg_cpu->bw_dl = cpu_bw_dl(rq); - -- if (rt_rq_is_runnable(&rq->rt)) -+ if (rt_rq_runnable(rq)) - return max; - - /* -@@ -626,7 +632,11 @@ static int sugov_kthread_create(struct sugov_policy *sg_policy) - struct task_struct *thread; - struct sched_attr attr = { - .size = sizeof(struct sched_attr), -+#ifdef CONFIG_SCHED_MUQSS -+ .sched_policy = SCHED_RR, -+#else - .sched_policy = SCHED_DEADLINE, -+#endif - .sched_flags = SCHED_FLAG_SUGOV, - .sched_nice = 0, - .sched_priority = 0, -diff --git a/kernel/sched/cpupri.h b/kernel/sched/cpupri.h -index 7dc20a3232e7..e733a0a53b0a 100644 ---- a/kernel/sched/cpupri.h -+++ b/kernel/sched/cpupri.h -@@ -17,9 +17,11 @@ struct cpupri { - int *cpu_to_pri; - }; - -+#ifndef CONFIG_SCHED_MUQSS - #ifdef CONFIG_SMP - int cpupri_find(struct cpupri *cp, struct task_struct *p, struct cpumask *lowest_mask); - void cpupri_set(struct cpupri *cp, int cpu, int pri); - int cpupri_init(struct cpupri *cp); - void cpupri_cleanup(struct cpupri *cp); - #endif -+#endif -diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c -index 0796f938c4f0..adae86c2c889 100644 ---- a/kernel/sched/cputime.c -+++ b/kernel/sched/cputime.c -@@ -265,26 +265,6 @@ static inline u64 account_other_time(u64 max) - return accounted; - } - --#ifdef CONFIG_64BIT --static inline u64 read_sum_exec_runtime(struct task_struct *t) --{ -- return t->se.sum_exec_runtime; --} --#else --static u64 read_sum_exec_runtime(struct task_struct *t) --{ -- u64 ns; -- struct rq_flags rf; -- struct rq *rq; -- -- rq = task_rq_lock(t, &rf); -- ns = t->se.sum_exec_runtime; -- task_rq_unlock(rq, t, &rf); -- -- return ns; --} --#endif -- - /* - * Accumulate raw cputime values of dead tasks (sig->[us]time) and live - * tasks (sum on group iteration) belonging to @tsk's group. -@@ -662,7 +642,7 @@ void cputime_adjust(struct task_cputime *curr, struct prev_cputime *prev, - void task_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st) - { - struct task_cputime cputime = { -- .sum_exec_runtime = p->se.sum_exec_runtime, -+ .sum_exec_runtime = tsk_seruntime(p), - }; - - task_cputime(p, &cputime.utime, &cputime.stime); -diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c -index 16f84142f2f4..cf9343a7620d 100644 ---- a/kernel/sched/idle.c -+++ b/kernel/sched/idle.c -@@ -224,6 +224,8 @@ static void cpuidle_idle_call(void) - static void do_idle(void) - { - int cpu = smp_processor_id(); -+ bool pending = false; -+ - /* - * If the arch has a polling bit, we maintain an invariant: - * -@@ -234,7 +236,10 @@ static void do_idle(void) - */ - - __current_set_polling(); -- tick_nohz_idle_enter(); -+ if (unlikely(softirq_pending(cpu))) -+ pending = true; -+ else -+ tick_nohz_idle_enter(); - - while (!need_resched()) { - check_pgt_cache(); -@@ -272,7 +277,8 @@ static void do_idle(void) - * an IPI to fold the state for us. - */ - preempt_set_need_resched(); -- tick_nohz_idle_exit(); -+ if (!pending) -+ tick_nohz_idle_exit(); - __current_clr_polling(); - - /* -@@ -368,6 +374,7 @@ void cpu_startup_entry(enum cpuhp_state state) - do_idle(); - } - -+#ifndef CONFIG_SCHED_MUQSS - /* - * idle-task scheduling class. - */ -@@ -480,3 +487,4 @@ const struct sched_class idle_sched_class = { - .switched_to = switched_to_idle, - .update_curr = update_curr_idle, - }; -+#endif /* CONFIG_SCHED_MUQSS */ -diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h -index 9683f458aec7..6a65812cb262 100644 ---- a/kernel/sched/sched.h -+++ b/kernel/sched/sched.h -@@ -2,6 +2,19 @@ - /* - * Scheduler internal types and methods: - */ -+#ifdef CONFIG_SCHED_MUQSS -+#include "MuQSS.h" -+ -+/* Begin compatibility wrappers for MuQSS/CFS differences */ -+#define rq_rt_nr_running(rq) ((rq)->rt_nr_running) -+#define rq_h_nr_running(rq) ((rq)->nr_running) -+ -+#else /* CONFIG_SCHED_MUQSS */ -+ -+#define rq_rt_nr_running(rq) ((rq)->rt.rt_nr_running) -+#define rq_h_nr_running(rq) ((rq)->cfs.h_nr_running) -+ -+ - #include - - #include -@@ -2244,3 +2257,30 @@ unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned - return util; - } - #endif -+ -+/* MuQSS compatibility functions */ -+static inline bool softirq_pending(int cpu) -+{ -+ return false; -+} -+ -+#ifdef CONFIG_64BIT -+static inline u64 read_sum_exec_runtime(struct task_struct *t) -+{ -+ return t->se.sum_exec_runtime; -+} -+#else -+static inline u64 read_sum_exec_runtime(struct task_struct *t) -+{ -+ u64 ns; -+ struct rq_flags rf; -+ struct rq *rq; -+ -+ rq = task_rq_lock(t, &rf); -+ ns = t->se.sum_exec_runtime; -+ task_rq_unlock(rq, t, &rf); -+ -+ return ns; -+} -+#endif -+#endif /* CONFIG_SCHED_MUQSS */ -diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c -index 505a41c42b96..47a053a38e26 100644 ---- a/kernel/sched/topology.c -+++ b/kernel/sched/topology.c -@@ -219,7 +219,11 @@ void rq_attach_root(struct rq *rq, struct root_domain *rd) - struct root_domain *old_rd = NULL; - unsigned long flags; - -+#ifdef CONFIG_SCHED_MUQSS -+ raw_spin_lock_irqsave(rq->lock, flags); -+#else - raw_spin_lock_irqsave(&rq->lock, flags); -+#endif - - if (rq->rd) { - old_rd = rq->rd; -@@ -245,7 +249,11 @@ void rq_attach_root(struct rq *rq, struct root_domain *rd) - if (cpumask_test_cpu(rq->cpu, cpu_active_mask)) - set_rq_online(rq); - -+#ifdef CONFIG_SCHED_MUQSS -+ raw_spin_unlock_irqrestore(rq->lock, flags); -+#else - raw_spin_unlock_irqrestore(&rq->lock, flags); -+#endif - - if (old_rd) - call_rcu_sched(&old_rd->rcu, free_rootdomain); -diff --git a/kernel/skip_list.c b/kernel/skip_list.c -new file mode 100644 -index 000000000000..bf5c6e97e139 ---- /dev/null -+++ b/kernel/skip_list.c -@@ -0,0 +1,148 @@ -+/* -+ Copyright (C) 2011,2016 Con Kolivas. -+ -+ Code based on example originally by William Pugh. -+ -+Skip Lists are a probabilistic alternative to balanced trees, as -+described in the June 1990 issue of CACM and were invented by -+William Pugh in 1987. -+ -+A couple of comments about this implementation: -+The routine randomLevel has been hard-coded to generate random -+levels using p=0.25. It can be easily changed. -+ -+The insertion routine has been implemented so as to use the -+dirty hack described in the CACM paper: if a random level is -+generated that is more than the current maximum level, the -+current maximum level plus one is used instead. -+ -+Levels start at zero and go up to MaxLevel (which is equal to -+MaxNumberOfLevels-1). -+ -+The routines defined in this file are: -+ -+init: defines slnode -+ -+new_skiplist: returns a new, empty list -+ -+randomLevel: Returns a random level based on a u64 random seed passed to it. -+In MuQSS, the "niffy" time is used for this purpose. -+ -+insert(l,key, value): inserts the binding (key, value) into l. This operation -+occurs in O(log n) time. -+ -+delnode(slnode, l, node): deletes any binding of key from the l based on the -+actual node value. This operation occurs in O(k) time where k is the -+number of levels of the node in question (max 8). The original delete -+function occurred in O(log n) time and involved a search. -+ -+MuQSS Notes: In this implementation of skiplists, there are bidirectional -+next/prev pointers and the insert function returns a pointer to the actual -+node the value is stored. The key here is chosen by the scheduler so as to -+sort tasks according to the priority list requirements and is no longer used -+by the scheduler after insertion. The scheduler lookup, however, occurs in -+O(1) time because it is always the first item in the level 0 linked list. -+Since the task struct stores a copy of the node pointer upon skiplist_insert, -+it can also remove it much faster than the original implementation with the -+aid of prev<->next pointer manipulation and no searching. -+ -+*/ -+ -+#include -+#include -+ -+#define MaxNumberOfLevels 8 -+#define MaxLevel (MaxNumberOfLevels - 1) -+ -+void skiplist_init(skiplist_node *slnode) -+{ -+ int i; -+ -+ slnode->key = 0xFFFFFFFFFFFFFFFF; -+ slnode->level = 0; -+ slnode->value = NULL; -+ for (i = 0; i < MaxNumberOfLevels; i++) -+ slnode->next[i] = slnode->prev[i] = slnode; -+} -+ -+skiplist *new_skiplist(skiplist_node *slnode) -+{ -+ skiplist *l = kzalloc(sizeof(skiplist), GFP_ATOMIC); -+ -+ BUG_ON(!l); -+ l->header = slnode; -+ return l; -+} -+ -+void free_skiplist(skiplist *l) -+{ -+ skiplist_node *p, *q; -+ -+ p = l->header; -+ do { -+ q = p->next[0]; -+ p->next[0]->prev[0] = q->prev[0]; -+ skiplist_node_init(p); -+ p = q; -+ } while (p != l->header); -+ kfree(l); -+} -+ -+void skiplist_node_init(skiplist_node *node) -+{ -+ memset(node, 0, sizeof(skiplist_node)); -+} -+ -+static inline unsigned int randomLevel(const long unsigned int randseed) -+{ -+ return find_first_bit(&randseed, MaxLevel) / 2; -+} -+ -+void skiplist_insert(skiplist *l, skiplist_node *node, keyType key, valueType value, unsigned int randseed) -+{ -+ skiplist_node *update[MaxNumberOfLevels]; -+ skiplist_node *p, *q; -+ int k = l->level; -+ -+ p = l->header; -+ do { -+ while (q = p->next[k], q->key <= key) -+ p = q; -+ update[k] = p; -+ } while (--k >= 0); -+ -+ ++l->entries; -+ k = randomLevel(randseed); -+ if (k > l->level) { -+ k = ++l->level; -+ update[k] = l->header; -+ } -+ -+ node->level = k; -+ node->key = key; -+ node->value = value; -+ do { -+ p = update[k]; -+ node->next[k] = p->next[k]; -+ p->next[k] = node; -+ node->prev[k] = p; -+ node->next[k]->prev[k] = node; -+ } while (--k >= 0); -+} -+ -+void skiplist_delete(skiplist *l, skiplist_node *node) -+{ -+ int k, m = node->level; -+ -+ for (k = 0; k <= m; k++) { -+ node->prev[k]->next[k] = node->next[k]; -+ node->next[k]->prev[k] = node->prev[k]; -+ } -+ skiplist_node_init(node); -+ if (m == l->level) { -+ while (l->header->next[m] == l->header && l->header->prev[m] == l->header && m > 0) -+ m--; -+ l->level = m; -+ } -+ l->entries--; -+} -diff --git a/kernel/sysctl.c b/kernel/sysctl.c -index cc02050fd0c4..7dac6885128e 100644 ---- a/kernel/sysctl.c -+++ b/kernel/sysctl.c -@@ -126,9 +126,17 @@ static int __maybe_unused one __read_only = 1; - static int __maybe_unused two __read_only = 2; - static int __maybe_unused four __read_only = 4; - static unsigned long one_ul __read_only = 1; --static int one_hundred __read_only = 100; --static int one_thousand __read_only = 1000; --#ifdef CONFIG_PRINTK -+static int one_hundred __read_only = 100; -+static int one_thousand __read_only = 1000; -+#ifdef CONFIG_SCHED_MUQSS -+extern int rr_interval; -+extern int sched_interactive; -+extern int sched_iso_cpu; -+extern int sched_yield_type; -+#endif -+extern int hrtimer_granularity_us; -+extern int hrtimeout_min_us; -+#if defined(CONFIG_PRINTK) || defined(CONFIG_SCHED_MUQSS) - static int ten_thousand __read_only = 10000; - #endif - #ifdef CONFIG_PERF_EVENTS -@@ -295,7 +303,7 @@ static struct ctl_table sysctl_base_table[] = { - { } - }; - --#ifdef CONFIG_SCHED_DEBUG -+#if defined(CONFIG_SCHED_DEBUG) && !defined(CONFIG_SCHED_MUQSS) - static int min_sched_granularity_ns __read_only = 100000; /* 100 usecs */ - static int max_sched_granularity_ns __read_only = NSEC_PER_SEC; /* 1 second */ - static int min_wakeup_granularity_ns __read_only; /* 0 usecs */ -@@ -312,6 +320,7 @@ static int max_extfrag_threshold = 1000; - #endif - - static struct ctl_table kern_table[] = { -+#ifndef CONFIG_SCHED_MUQSS - { - .procname = "sched_child_runs_first", - .data = &sysctl_sched_child_runs_first, -@@ -466,6 +475,7 @@ static struct ctl_table kern_table[] = { - .extra1 = &one, - }, - #endif -+#endif /* !CONFIG_SCHED_MUQSS */ - #ifdef CONFIG_PROVE_LOCKING - { - .procname = "prove_locking", -@@ -1031,6 +1041,62 @@ static struct ctl_table kern_table[] = { - .proc_handler = proc_dointvec, - }, - #endif -+#ifdef CONFIG_SCHED_MUQSS -+ { -+ .procname = "rr_interval", -+ .data = &rr_interval, -+ .maxlen = sizeof (int), -+ .mode = 0644, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &one, -+ .extra2 = &one_thousand, -+ }, -+ { -+ .procname = "interactive", -+ .data = &sched_interactive, -+ .maxlen = sizeof(int), -+ .mode = 0644, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &zero, -+ .extra2 = &one, -+ }, -+ { -+ .procname = "iso_cpu", -+ .data = &sched_iso_cpu, -+ .maxlen = sizeof (int), -+ .mode = 0644, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &zero, -+ .extra2 = &one_hundred, -+ }, -+ { -+ .procname = "yield_type", -+ .data = &sched_yield_type, -+ .maxlen = sizeof (int), -+ .mode = 0644, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &zero, -+ .extra2 = &two, -+ }, -+#endif -+ { -+ .procname = "hrtimer_granularity_us", -+ .data = &hrtimer_granularity_us, -+ .maxlen = sizeof(int), -+ .mode = 0644, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &one, -+ .extra2 = &ten_thousand, -+ }, -+ { -+ .procname = "hrtimeout_min_us", -+ .data = &hrtimeout_min_us, -+ .maxlen = sizeof(int), -+ .mode = 0644, -+ .proc_handler = &proc_dointvec_minmax, -+ .extra1 = &one, -+ .extra2 = &ten_thousand, -+ }, - #if defined(CONFIG_S390) && defined(CONFIG_SMP) - { - .procname = "spin_retry", -diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c -index 8c0e4092f661..faf30b861235 100644 ---- a/kernel/time/clockevents.c -+++ b/kernel/time/clockevents.c -@@ -198,8 +198,9 @@ int clockevents_tick_resume(struct clock_event_device *dev) - - #ifdef CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST - --/* Limit min_delta to a jiffie */ --#define MIN_DELTA_LIMIT (NSEC_PER_SEC / HZ) -+int __read_mostly hrtimer_granularity_us = 100; -+/* Limit min_delta to 100us */ -+#define MIN_DELTA_LIMIT (hrtimer_granularity_us * NSEC_PER_USEC) - - /** - * clockevents_increase_min_delta - raise minimum delta of a clock event device -diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c -index e1a549c9e399..f767487c8b44 100644 ---- a/kernel/time/hrtimer.c -+++ b/kernel/time/hrtimer.c -@@ -2026,3 +2026,117 @@ int __sched schedule_hrtimeout(ktime_t *expires, - return schedule_hrtimeout_range(expires, 0, mode); - } - EXPORT_SYMBOL_GPL(schedule_hrtimeout); -+ -+/* -+ * As per schedule_hrtimeout but taskes a millisecond value and returns how -+ * many milliseconds are left. -+ */ -+long __sched schedule_msec_hrtimeout(long timeout) -+{ -+ struct hrtimer_sleeper t; -+ int delta, jiffs; -+ ktime_t expires; -+ -+ if (!timeout) { -+ __set_current_state(TASK_RUNNING); -+ return 0; -+ } -+ -+ jiffs = msecs_to_jiffies(timeout); -+ /* -+ * If regular timer resolution is adequate or hrtimer resolution is not -+ * (yet) better than Hz, as would occur during startup, use regular -+ * timers. -+ */ -+ if (jiffs > 4 || hrtimer_resolution >= NSEC_PER_SEC / HZ || pm_freezing) -+ return schedule_timeout(jiffs); -+ -+ delta = (timeout % 1000) * NSEC_PER_MSEC; -+ expires = ktime_set(0, delta); -+ -+ hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); -+ hrtimer_set_expires_range_ns(&t.timer, expires, delta); -+ -+ hrtimer_init_sleeper(&t, current); -+ -+ hrtimer_start_expires(&t.timer, HRTIMER_MODE_REL); -+ -+ if (likely(t.task)) -+ schedule(); -+ -+ hrtimer_cancel(&t.timer); -+ destroy_hrtimer_on_stack(&t.timer); -+ -+ __set_current_state(TASK_RUNNING); -+ -+ expires = hrtimer_expires_remaining(&t.timer); -+ timeout = ktime_to_ms(expires); -+ return timeout < 0 ? 0 : timeout; -+} -+ -+EXPORT_SYMBOL(schedule_msec_hrtimeout); -+ -+#define USECS_PER_SEC 1000000 -+extern int hrtimer_granularity_us; -+ -+static inline long schedule_usec_hrtimeout(long timeout) -+{ -+ struct hrtimer_sleeper t; -+ ktime_t expires; -+ int delta; -+ -+ if (!timeout) { -+ __set_current_state(TASK_RUNNING); -+ return 0; -+ } -+ -+ if (hrtimer_resolution >= NSEC_PER_SEC / HZ) -+ return schedule_timeout(usecs_to_jiffies(timeout)); -+ -+ if (timeout < hrtimer_granularity_us) -+ timeout = hrtimer_granularity_us; -+ delta = (timeout % USECS_PER_SEC) * NSEC_PER_USEC; -+ expires = ktime_set(0, delta); -+ -+ hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); -+ hrtimer_set_expires_range_ns(&t.timer, expires, delta); -+ -+ hrtimer_init_sleeper(&t, current); -+ -+ hrtimer_start_expires(&t.timer, HRTIMER_MODE_REL); -+ -+ if (likely(t.task)) -+ schedule(); -+ -+ hrtimer_cancel(&t.timer); -+ destroy_hrtimer_on_stack(&t.timer); -+ -+ __set_current_state(TASK_RUNNING); -+ -+ expires = hrtimer_expires_remaining(&t.timer); -+ timeout = ktime_to_us(expires); -+ return timeout < 0 ? 0 : timeout; -+} -+ -+int __read_mostly hrtimeout_min_us = 1000; -+ -+long __sched schedule_min_hrtimeout(void) -+{ -+ return usecs_to_jiffies(schedule_usec_hrtimeout(hrtimeout_min_us)); -+} -+ -+EXPORT_SYMBOL(schedule_min_hrtimeout); -+ -+long __sched schedule_msec_hrtimeout_interruptible(long timeout) -+{ -+ __set_current_state(TASK_INTERRUPTIBLE); -+ return schedule_msec_hrtimeout(timeout); -+} -+EXPORT_SYMBOL(schedule_msec_hrtimeout_interruptible); -+ -+long __sched schedule_msec_hrtimeout_uninterruptible(long timeout) -+{ -+ __set_current_state(TASK_UNINTERRUPTIBLE); -+ return schedule_msec_hrtimeout(timeout); -+} -+EXPORT_SYMBOL(schedule_msec_hrtimeout_uninterruptible); -diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c -index ce32cf741b25..2c6a78e6930f 100644 ---- a/kernel/time/posix-cpu-timers.c -+++ b/kernel/time/posix-cpu-timers.c -@@ -829,7 +829,7 @@ static void check_thread_timers(struct task_struct *tsk, - tsk_expires->virt_exp = expires; - - tsk_expires->sched_exp = check_timers_list(++timers, firing, -- tsk->se.sum_exec_runtime); -+ tsk_seruntime(tsk)); - - /* - * Check for the special case thread timers. -@@ -839,7 +839,7 @@ static void check_thread_timers(struct task_struct *tsk, - unsigned long hard = task_rlimit_max(tsk, RLIMIT_RTTIME); - - if (hard != RLIM_INFINITY && -- tsk->rt.timeout > DIV_ROUND_UP(hard, USEC_PER_SEC/HZ)) { -+ tsk_rttimeout(tsk) > DIV_ROUND_UP(hard, USEC_PER_SEC/HZ)) { - /* - * At the hard limit, we just die. - * No need to calculate anything else now. -@@ -851,7 +851,7 @@ static void check_thread_timers(struct task_struct *tsk, - __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk); - return; - } -- if (tsk->rt.timeout > DIV_ROUND_UP(soft, USEC_PER_SEC/HZ)) { -+ if (tsk_rttimeout(tsk) > DIV_ROUND_UP(soft, USEC_PER_SEC/HZ)) { - /* - * At the soft limit, send a SIGXCPU every second. - */ -@@ -1094,7 +1094,7 @@ static inline int fastpath_timer_check(struct task_struct *tsk) - struct task_cputime task_sample; - - task_cputime(tsk, &task_sample.utime, &task_sample.stime); -- task_sample.sum_exec_runtime = tsk->se.sum_exec_runtime; -+ task_sample.sum_exec_runtime = tsk_seruntime(tsk); - if (task_cputime_expired(&task_sample, &tsk->cputime_expires)) - return 1; - } -diff --git a/kernel/time/timer.c b/kernel/time/timer.c -index fa49cd753dea..d5d0fa004d2b 100644 ---- a/kernel/time/timer.c -+++ b/kernel/time/timer.c -@@ -44,6 +44,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -1479,7 +1480,7 @@ static unsigned long __next_timer_interrupt(struct timer_base *base) - * Check, if the next hrtimer event is before the next timer wheel - * event: - */ --static u64 cmp_next_hrtimer_event(u64 basem, u64 expires) -+static u64 cmp_next_hrtimer_event(struct timer_base *base, u64 basem, u64 expires) - { - u64 nextevt = hrtimer_get_next_event(); - -@@ -1497,6 +1498,9 @@ static u64 cmp_next_hrtimer_event(u64 basem, u64 expires) - if (nextevt <= basem) - return basem; - -+ if (nextevt < expires && nextevt - basem <= TICK_NSEC) -+ base->is_idle = false; -+ - /* - * Round up to the next jiffie. High resolution timers are - * off, so the hrtimers are expired in the tick and we need to -@@ -1566,7 +1570,7 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem) - } - raw_spin_unlock(&base->lock); - -- return cmp_next_hrtimer_event(basem, expires); -+ return cmp_next_hrtimer_event(base, basem, expires); - } - - /** -@@ -1798,6 +1802,18 @@ signed long __sched schedule_timeout(signed long timeout) - - expire = timeout + jiffies; - -+#ifdef CONFIG_HIGH_RES_TIMERS -+ if (timeout == 1 && hrtimer_resolution < NSEC_PER_SEC / HZ) { -+ /* -+ * Special case 1 as being a request for the minimum timeout -+ * and use highres timers to timeout after 1ms to workaround -+ * the granularity of low Hz tick timers. -+ */ -+ if (!schedule_min_hrtimeout()) -+ return 0; -+ goto out_timeout; -+ } -+#endif - timer.task = current; - timer_setup_on_stack(&timer.timer, process_timeout, 0); - __mod_timer(&timer.timer, expire, 0); -@@ -1806,10 +1822,10 @@ signed long __sched schedule_timeout(signed long timeout) - - /* Remove the timer from the object tracker */ - destroy_timer_on_stack(&timer.timer); -- -+out_timeout: - timeout = expire - jiffies; - -- out: -+out: - return timeout < 0 ? 0 : timeout; - } - EXPORT_SYMBOL(schedule_timeout); -@@ -1950,7 +1966,19 @@ void __init init_timers(void) - */ - void msleep(unsigned int msecs) - { -- unsigned long timeout = msecs_to_jiffies(msecs) + 1; -+ int jiffs = msecs_to_jiffies(msecs); -+ unsigned long timeout; -+ -+ /* -+ * Use high resolution timers where the resolution of tick based -+ * timers is inadequate. -+ */ -+ if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ && !pm_freezing) { -+ while (msecs) -+ msecs = schedule_msec_hrtimeout_uninterruptible(msecs); -+ return; -+ } -+ timeout = jiffs + 1; - - while (timeout) - timeout = schedule_timeout_uninterruptible(timeout); -@@ -1964,7 +1992,15 @@ EXPORT_SYMBOL(msleep); - */ - unsigned long msleep_interruptible(unsigned int msecs) - { -- unsigned long timeout = msecs_to_jiffies(msecs) + 1; -+ int jiffs = msecs_to_jiffies(msecs); -+ unsigned long timeout; -+ -+ if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ && !pm_freezing) { -+ while (msecs && !signal_pending(current)) -+ msecs = schedule_msec_hrtimeout_interruptible(msecs); -+ return msecs; -+ } -+ timeout = jiffs + 1; - - while (timeout && !signal_pending(current)) - timeout = schedule_timeout_interruptible(timeout); -diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c -index 11e9daa4a568..4c4e1d5bdf42 100644 ---- a/kernel/trace/trace_selftest.c -+++ b/kernel/trace/trace_selftest.c -@@ -1041,10 +1041,15 @@ static int trace_wakeup_test_thread(void *data) - { - /* Make this a -deadline thread */ - static const struct sched_attr attr = { -+#ifdef CONFIG_SCHED_MUQSS -+ /* No deadline on MuQSS, use RR */ -+ .sched_policy = SCHED_RR, -+#else - .sched_policy = SCHED_DEADLINE, - .sched_runtime = 100000ULL, - .sched_deadline = 10000000ULL, - .sched_period = 10000000ULL -+#endif - }; - struct wakeup_test_data *x = data; - -diff --git a/mm/vmscan.c b/mm/vmscan.c -index c5ef7240cbcb..3f04308b6445 100644 ---- a/mm/vmscan.c -+++ b/mm/vmscan.c -@@ -159,7 +159,7 @@ struct scan_control { - /* - * From 0 .. 100. Higher means more swappy. - */ --int vm_swappiness = 60; -+int vm_swappiness = 33; - /* - * The total number of pages which are beyond the high watermark within all - * zones. -diff --git a/net/core/pktgen.c b/net/core/pktgen.c -index 7f6938405fa1..369ad3eca2a3 100644 ---- a/net/core/pktgen.c -+++ b/net/core/pktgen.c -@@ -1900,7 +1900,7 @@ static void pktgen_mark_device(const struct pktgen_net *pn, const char *ifname) - mutex_unlock(&pktgen_thread_lock); - pr_debug("%s: waiting for %s to disappear....\n", - __func__, ifname); -- schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); -+ schedule_msec_hrtimeout_interruptible((msec_per_try)); - mutex_lock(&pktgen_thread_lock); - - if (++i >= max_tries) { -diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c -index 62962178a9d7..87e486740da0 100644 ---- a/sound/pci/maestro3.c -+++ b/sound/pci/maestro3.c -@@ -2016,7 +2016,7 @@ static void snd_m3_ac97_reset(struct snd_m3 *chip) - outw(0, io + GPIO_DATA); - outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION); - -- schedule_timeout_uninterruptible(msecs_to_jiffies(delay1)); -+ schedule_msec_hrtimeout_uninterruptible((delay1)); - - outw(GPO_PRIMARY_AC97, io + GPIO_DATA); - udelay(5); -@@ -2024,7 +2024,7 @@ static void snd_m3_ac97_reset(struct snd_m3 *chip) - outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A); - outw(~0, io + GPIO_MASK); - -- schedule_timeout_uninterruptible(msecs_to_jiffies(delay2)); -+ schedule_msec_hrtimeout_uninterruptible((delay2)); - - if (! snd_m3_try_read_vendor(chip)) - break; -diff --git a/sound/soc/codecs/rt5631.c b/sound/soc/codecs/rt5631.c -index 865f49ac38dd..3c1190dd114f 100644 ---- a/sound/soc/codecs/rt5631.c -+++ b/sound/soc/codecs/rt5631.c -@@ -419,7 +419,7 @@ static void onebit_depop_mute_stage(struct snd_soc_component *component, int ena - hp_zc = snd_soc_component_read32(component, RT5631_INT_ST_IRQ_CTRL_2); - snd_soc_component_write(component, RT5631_INT_ST_IRQ_CTRL_2, hp_zc & 0xf7ff); - if (enable) { -- schedule_timeout_uninterruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_uninterruptible((10)); - /* config one-bit depop parameter */ - rt5631_write_index(component, RT5631_SPK_INTL_CTRL, 0x307f); - snd_soc_component_update_bits(component, RT5631_HP_OUT_VOL, -@@ -529,7 +529,7 @@ static void depop_seq_mute_stage(struct snd_soc_component *component, int enable - hp_zc = snd_soc_component_read32(component, RT5631_INT_ST_IRQ_CTRL_2); - snd_soc_component_write(component, RT5631_INT_ST_IRQ_CTRL_2, hp_zc & 0xf7ff); - if (enable) { -- schedule_timeout_uninterruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_uninterruptible((10)); - - /* config depop sequence parameter */ - rt5631_write_index(component, RT5631_SPK_INTL_CTRL, 0x302f); -diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c -index e92ebe52d485..88791ebb6df0 100644 ---- a/sound/soc/codecs/wm8350.c -+++ b/sound/soc/codecs/wm8350.c -@@ -236,10 +236,10 @@ static void wm8350_pga_work(struct work_struct *work) - out2->ramp == WM8350_RAMP_UP) { - /* delay is longer over 0dB as increases are larger */ - if (i >= WM8350_OUTn_0dB) -- schedule_timeout_interruptible(msecs_to_jiffies -+ schedule_msec_hrtimeout_interruptible( - (2)); - else -- schedule_timeout_interruptible(msecs_to_jiffies -+ schedule_msec_hrtimeout_interruptible( - (1)); - } else - udelay(50); /* doesn't matter if we delay longer */ -@@ -1123,7 +1123,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, - (platform->dis_out4 << 6)); - - /* wait for discharge */ -- schedule_timeout_interruptible(msecs_to_jiffies -+ schedule_msec_hrtimeout_interruptible( - (platform-> - cap_discharge_msecs)); - -@@ -1139,7 +1139,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, - WM8350_VBUFEN); - - /* wait for vmid */ -- schedule_timeout_interruptible(msecs_to_jiffies -+ schedule_msec_hrtimeout_interruptible( - (platform-> - vmid_charge_msecs)); - -@@ -1190,7 +1190,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, - wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1); - - /* wait */ -- schedule_timeout_interruptible(msecs_to_jiffies -+ schedule_msec_hrtimeout_interruptible( - (platform-> - vmid_discharge_msecs)); - -@@ -1208,7 +1208,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, - pm1 | WM8350_OUTPUT_DRAIN_EN); - - /* wait */ -- schedule_timeout_interruptible(msecs_to_jiffies -+ schedule_msec_hrtimeout_interruptible( - (platform->drain_msecs)); - - pm1 &= ~WM8350_BIASEN; -diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c -index 1a14e902949d..68f17d9877ec 100644 ---- a/sound/soc/codecs/wm8900.c -+++ b/sound/soc/codecs/wm8900.c -@@ -1112,7 +1112,7 @@ static int wm8900_set_bias_level(struct snd_soc_component *component, - /* Need to let things settle before stopping the clock - * to ensure that restart works, see "Stopping the - * master clock" in the datasheet. */ -- schedule_timeout_interruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_interruptible(1); - snd_soc_component_write(component, WM8900_REG_POWER2, - WM8900_REG_POWER2_SYSCLK_ENA); - break; -diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c -index 643863bb32e0..fc318d71a8a3 100644 ---- a/sound/soc/codecs/wm9713.c -+++ b/sound/soc/codecs/wm9713.c -@@ -203,7 +203,7 @@ static int wm9713_voice_shutdown(struct snd_soc_dapm_widget *w, - - /* Gracefully shut down the voice interface. */ - snd_soc_component_update_bits(component, AC97_HANDSET_RATE, 0x0f00, 0x0200); -- schedule_timeout_interruptible(msecs_to_jiffies(1)); -+ schedule_msec_hrtimeout_interruptible(1); - snd_soc_component_update_bits(component, AC97_HANDSET_RATE, 0x0f00, 0x0f00); - snd_soc_component_update_bits(component, AC97_EXTENDED_MID, 0x1000, 0x1000); - -@@ -872,7 +872,7 @@ static int wm9713_set_pll(struct snd_soc_component *component, - wm9713->pll_in = freq_in; - - /* wait 10ms AC97 link frames for the link to stabilise */ -- schedule_timeout_interruptible(msecs_to_jiffies(10)); -+ schedule_msec_hrtimeout_interruptible((10)); - return 0; - } - -diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c -index 461d951917c0..b5eb57ba4af4 100644 ---- a/sound/soc/soc-dapm.c -+++ b/sound/soc/soc-dapm.c -@@ -131,7 +131,7 @@ static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) - static void pop_wait(u32 pop_time) - { - if (pop_time) -- schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); -+ schedule_msec_hrtimeout_uninterruptible((pop_time)); - } - - static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) -diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c -index 72c6f8e82a7e..46d8c2a148ad 100644 ---- a/sound/usb/line6/pcm.c -+++ b/sound/usb/line6/pcm.c -@@ -131,7 +131,7 @@ static void line6_wait_clear_audio_urbs(struct snd_line6_pcm *line6pcm, - if (!alive) - break; - set_current_state(TASK_UNINTERRUPTIBLE); -- schedule_timeout(1); -+ schedule_min_hrtimeout(); - } while (--timeout > 0); - if (alive) - dev_err(line6pcm->line6->ifcdev, -diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile -index c9d038f91af6..af41781c233a 100644 ---- a/tools/objtool/Makefile -+++ b/tools/objtool/Makefile -@@ -31,7 +31,7 @@ INCLUDES := -I$(srctree)/tools/include \ - -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ - -I$(srctree)/tools/objtool/arch/$(ARCH)/include - WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed --CFLAGS += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) -+CFLAGS += $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) - LDFLAGS += -lelf $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) - - # Allow old libelf to be used: diff --git a/patch-4.20-ck1-jcmod1.patch b/patch-4.20-ck1-jcmod1.patch new file mode 100644 index 0000000..dd1f394 --- /dev/null +++ b/patch-4.20-ck1-jcmod1.patch @@ -0,0 +1,16903 @@ +diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt +index aefd358a5ca3..d83cc67a2e80 100644 +--- a/Documentation/admin-guide/kernel-parameters.txt ++++ b/Documentation/admin-guide/kernel-parameters.txt +@@ -4035,6 +4035,14 @@ + Memory area to be used by remote processor image, + managed by CMA. + ++ rqshare= [X86] Select the MuQSS scheduler runqueue sharing type. ++ Format: ++ smt -- Share SMT (hyperthread) sibling runqueues ++ mc -- Share MC (multicore) sibling runqueues ++ smp -- Share SMP runqueues ++ none -- So not share any runqueues ++ Default value is mc ++ + rw [KNL] Mount root device read-write on boot + + S [KNL] Run init in single mode +diff --git a/Documentation/scheduler/sched-BFS.txt b/Documentation/scheduler/sched-BFS.txt +new file mode 100644 +index 000000000000..c0282002a079 +--- /dev/null ++++ b/Documentation/scheduler/sched-BFS.txt +@@ -0,0 +1,351 @@ ++BFS - The Brain Fuck Scheduler by Con Kolivas. ++ ++Goals. ++ ++The goal of the Brain Fuck Scheduler, referred to as BFS from here on, is to ++completely do away with the complex designs of the past for the cpu process ++scheduler and instead implement one that is very simple in basic design. ++The main focus of BFS is to achieve excellent desktop interactivity and ++responsiveness without heuristics and tuning knobs that are difficult to ++understand, impossible to model and predict the effect of, and when tuned to ++one workload cause massive detriment to another. ++ ++ ++Design summary. ++ ++BFS is best described as a single runqueue, O(n) lookup, earliest effective ++virtual deadline first design, loosely based on EEVDF (earliest eligible virtual ++deadline first) and my previous Staircase Deadline scheduler. Each component ++shall be described in order to understand the significance of, and reasoning for ++it. The codebase when the first stable version was released was approximately ++9000 lines less code than the existing mainline linux kernel scheduler (in ++2.6.31). This does not even take into account the removal of documentation and ++the cgroups code that is not used. ++ ++Design reasoning. ++ ++The single runqueue refers to the queued but not running processes for the ++entire system, regardless of the number of CPUs. The reason for going back to ++a single runqueue design is that once multiple runqueues are introduced, ++per-CPU or otherwise, there will be complex interactions as each runqueue will ++be responsible for the scheduling latency and fairness of the tasks only on its ++own runqueue, and to achieve fairness and low latency across multiple CPUs, any ++advantage in throughput of having CPU local tasks causes other disadvantages. ++This is due to requiring a very complex balancing system to at best achieve some ++semblance of fairness across CPUs and can only maintain relatively low latency ++for tasks bound to the same CPUs, not across them. To increase said fairness ++and latency across CPUs, the advantage of local runqueue locking, which makes ++for better scalability, is lost due to having to grab multiple locks. ++ ++A significant feature of BFS is that all accounting is done purely based on CPU ++used and nowhere is sleep time used in any way to determine entitlement or ++interactivity. Interactivity "estimators" that use some kind of sleep/run ++algorithm are doomed to fail to detect all interactive tasks, and to falsely tag ++tasks that aren't interactive as being so. The reason for this is that it is ++close to impossible to determine that when a task is sleeping, whether it is ++doing it voluntarily, as in a userspace application waiting for input in the ++form of a mouse click or otherwise, or involuntarily, because it is waiting for ++another thread, process, I/O, kernel activity or whatever. Thus, such an ++estimator will introduce corner cases, and more heuristics will be required to ++cope with those corner cases, introducing more corner cases and failed ++interactivity detection and so on. Interactivity in BFS is built into the design ++by virtue of the fact that tasks that are waking up have not used up their quota ++of CPU time, and have earlier effective deadlines, thereby making it very likely ++they will preempt any CPU bound task of equivalent nice level. See below for ++more information on the virtual deadline mechanism. Even if they do not preempt ++a running task, because the rr interval is guaranteed to have a bound upper ++limit on how long a task will wait for, it will be scheduled within a timeframe ++that will not cause visible interface jitter. ++ ++ ++Design details. ++ ++Task insertion. ++ ++BFS inserts tasks into each relevant queue as an O(1) insertion into a double ++linked list. On insertion, *every* running queue is checked to see if the newly ++queued task can run on any idle queue, or preempt the lowest running task on the ++system. This is how the cross-CPU scheduling of BFS achieves significantly lower ++latency per extra CPU the system has. In this case the lookup is, in the worst ++case scenario, O(n) where n is the number of CPUs on the system. ++ ++Data protection. ++ ++BFS has one single lock protecting the process local data of every task in the ++global queue. Thus every insertion, removal and modification of task data in the ++global runqueue needs to grab the global lock. However, once a task is taken by ++a CPU, the CPU has its own local data copy of the running process' accounting ++information which only that CPU accesses and modifies (such as during a ++timer tick) thus allowing the accounting data to be updated lockless. Once a ++CPU has taken a task to run, it removes it from the global queue. Thus the ++global queue only ever has, at most, ++ ++ (number of tasks requesting cpu time) - (number of logical CPUs) + 1 ++ ++tasks in the global queue. This value is relevant for the time taken to look up ++tasks during scheduling. This will increase if many tasks with CPU affinity set ++in their policy to limit which CPUs they're allowed to run on if they outnumber ++the number of CPUs. The +1 is because when rescheduling a task, the CPU's ++currently running task is put back on the queue. Lookup will be described after ++the virtual deadline mechanism is explained. ++ ++Virtual deadline. ++ ++The key to achieving low latency, scheduling fairness, and "nice level" ++distribution in BFS is entirely in the virtual deadline mechanism. The one ++tunable in BFS is the rr_interval, or "round robin interval". This is the ++maximum time two SCHED_OTHER (or SCHED_NORMAL, the common scheduling policy) ++tasks of the same nice level will be running for, or looking at it the other ++way around, the longest duration two tasks of the same nice level will be ++delayed for. When a task requests cpu time, it is given a quota (time_slice) ++equal to the rr_interval and a virtual deadline. The virtual deadline is ++offset from the current time in jiffies by this equation: ++ ++ jiffies + (prio_ratio * rr_interval) ++ ++The prio_ratio is determined as a ratio compared to the baseline of nice -20 ++and increases by 10% per nice level. The deadline is a virtual one only in that ++no guarantee is placed that a task will actually be scheduled by this time, but ++it is used to compare which task should go next. There are three components to ++how a task is next chosen. First is time_slice expiration. If a task runs out ++of its time_slice, it is descheduled, the time_slice is refilled, and the ++deadline reset to that formula above. Second is sleep, where a task no longer ++is requesting CPU for whatever reason. The time_slice and deadline are _not_ ++adjusted in this case and are just carried over for when the task is next ++scheduled. Third is preemption, and that is when a newly waking task is deemed ++higher priority than a currently running task on any cpu by virtue of the fact ++that it has an earlier virtual deadline than the currently running task. The ++earlier deadline is the key to which task is next chosen for the first and ++second cases. Once a task is descheduled, it is put back on the queue, and an ++O(n) lookup of all queued-but-not-running tasks is done to determine which has ++the earliest deadline and that task is chosen to receive CPU next. ++ ++The CPU proportion of different nice tasks works out to be approximately the ++ ++ (prio_ratio difference)^2 ++ ++The reason it is squared is that a task's deadline does not change while it is ++running unless it runs out of time_slice. Thus, even if the time actually ++passes the deadline of another task that is queued, it will not get CPU time ++unless the current running task deschedules, and the time "base" (jiffies) is ++constantly moving. ++ ++Task lookup. ++ ++BFS has 103 priority queues. 100 of these are dedicated to the static priority ++of realtime tasks, and the remaining 3 are, in order of best to worst priority, ++SCHED_ISO (isochronous), SCHED_NORMAL, and SCHED_IDLEPRIO (idle priority ++scheduling). When a task of these priorities is queued, a bitmap of running ++priorities is set showing which of these priorities has tasks waiting for CPU ++time. When a CPU is made to reschedule, the lookup for the next task to get ++CPU time is performed in the following way: ++ ++First the bitmap is checked to see what static priority tasks are queued. If ++any realtime priorities are found, the corresponding queue is checked and the ++first task listed there is taken (provided CPU affinity is suitable) and lookup ++is complete. If the priority corresponds to a SCHED_ISO task, they are also ++taken in FIFO order (as they behave like SCHED_RR). If the priority corresponds ++to either SCHED_NORMAL or SCHED_IDLEPRIO, then the lookup becomes O(n). At this ++stage, every task in the runlist that corresponds to that priority is checked ++to see which has the earliest set deadline, and (provided it has suitable CPU ++affinity) it is taken off the runqueue and given the CPU. If a task has an ++expired deadline, it is taken and the rest of the lookup aborted (as they are ++chosen in FIFO order). ++ ++Thus, the lookup is O(n) in the worst case only, where n is as described ++earlier, as tasks may be chosen before the whole task list is looked over. ++ ++ ++Scalability. ++ ++The major limitations of BFS will be that of scalability, as the separate ++runqueue designs will have less lock contention as the number of CPUs rises. ++However they do not scale linearly even with separate runqueues as multiple ++runqueues will need to be locked concurrently on such designs to be able to ++achieve fair CPU balancing, to try and achieve some sort of nice-level fairness ++across CPUs, and to achieve low enough latency for tasks on a busy CPU when ++other CPUs would be more suited. BFS has the advantage that it requires no ++balancing algorithm whatsoever, as balancing occurs by proxy simply because ++all CPUs draw off the global runqueue, in priority and deadline order. Despite ++the fact that scalability is _not_ the prime concern of BFS, it both shows very ++good scalability to smaller numbers of CPUs and is likely a more scalable design ++at these numbers of CPUs. ++ ++It also has some very low overhead scalability features built into the design ++when it has been deemed their overhead is so marginal that they're worth adding. ++The first is the local copy of the running process' data to the CPU it's running ++on to allow that data to be updated lockless where possible. Then there is ++deference paid to the last CPU a task was running on, by trying that CPU first ++when looking for an idle CPU to use the next time it's scheduled. Finally there ++is the notion of cache locality beyond the last running CPU. The sched_domains ++information is used to determine the relative virtual "cache distance" that ++other CPUs have from the last CPU a task was running on. CPUs with shared ++caches, such as SMT siblings, or multicore CPUs with shared caches, are treated ++as cache local. CPUs without shared caches are treated as not cache local, and ++CPUs on different NUMA nodes are treated as very distant. This "relative cache ++distance" is used by modifying the virtual deadline value when doing lookups. ++Effectively, the deadline is unaltered between "cache local" CPUs, doubled for ++"cache distant" CPUs, and quadrupled for "very distant" CPUs. The reasoning ++behind the doubling of deadlines is as follows. The real cost of migrating a ++task from one CPU to another is entirely dependant on the cache footprint of ++the task, how cache intensive the task is, how long it's been running on that ++CPU to take up the bulk of its cache, how big the CPU cache is, how fast and ++how layered the CPU cache is, how fast a context switch is... and so on. In ++other words, it's close to random in the real world where we do more than just ++one sole workload. The only thing we can be sure of is that it's not free. So ++BFS uses the principle that an idle CPU is a wasted CPU and utilising idle CPUs ++is more important than cache locality, and cache locality only plays a part ++after that. Doubling the effective deadline is based on the premise that the ++"cache local" CPUs will tend to work on the same tasks up to double the number ++of cache local CPUs, and once the workload is beyond that amount, it is likely ++that none of the tasks are cache warm anywhere anyway. The quadrupling for NUMA ++is a value I pulled out of my arse. ++ ++When choosing an idle CPU for a waking task, the cache locality is determined ++according to where the task last ran and then idle CPUs are ranked from best ++to worst to choose the most suitable idle CPU based on cache locality, NUMA ++node locality and hyperthread sibling business. They are chosen in the ++following preference (if idle): ++ ++* Same core, idle or busy cache, idle threads ++* Other core, same cache, idle or busy cache, idle threads. ++* Same node, other CPU, idle cache, idle threads. ++* Same node, other CPU, busy cache, idle threads. ++* Same core, busy threads. ++* Other core, same cache, busy threads. ++* Same node, other CPU, busy threads. ++* Other node, other CPU, idle cache, idle threads. ++* Other node, other CPU, busy cache, idle threads. ++* Other node, other CPU, busy threads. ++ ++This shows the SMT or "hyperthread" awareness in the design as well which will ++choose a real idle core first before a logical SMT sibling which already has ++tasks on the physical CPU. ++ ++Early benchmarking of BFS suggested scalability dropped off at the 16 CPU mark. ++However this benchmarking was performed on an earlier design that was far less ++scalable than the current one so it's hard to know how scalable it is in terms ++of both CPUs (due to the global runqueue) and heavily loaded machines (due to ++O(n) lookup) at this stage. Note that in terms of scalability, the number of ++_logical_ CPUs matters, not the number of _physical_ CPUs. Thus, a dual (2x) ++quad core (4X) hyperthreaded (2X) machine is effectively a 16X. Newer benchmark ++results are very promising indeed, without needing to tweak any knobs, features ++or options. Benchmark contributions are most welcome. ++ ++ ++Features ++ ++As the initial prime target audience for BFS was the average desktop user, it ++was designed to not need tweaking, tuning or have features set to obtain benefit ++from it. Thus the number of knobs and features has been kept to an absolute ++minimum and should not require extra user input for the vast majority of cases. ++There are precisely 2 tunables, and 2 extra scheduling policies. The rr_interval ++and iso_cpu tunables, and the SCHED_ISO and SCHED_IDLEPRIO policies. In addition ++to this, BFS also uses sub-tick accounting. What BFS does _not_ now feature is ++support for CGROUPS. The average user should neither need to know what these ++are, nor should they need to be using them to have good desktop behaviour. ++ ++rr_interval ++ ++There is only one "scheduler" tunable, the round robin interval. This can be ++accessed in ++ ++ /proc/sys/kernel/rr_interval ++ ++The value is in milliseconds, and the default value is set to 6 on a ++uniprocessor machine, and automatically set to a progressively higher value on ++multiprocessor machines. The reasoning behind increasing the value on more CPUs ++is that the effective latency is decreased by virtue of there being more CPUs on ++BFS (for reasons explained above), and increasing the value allows for less ++cache contention and more throughput. Valid values are from 1 to 1000 ++Decreasing the value will decrease latencies at the cost of decreasing ++throughput, while increasing it will improve throughput, but at the cost of ++worsening latencies. The accuracy of the rr interval is limited by HZ resolution ++of the kernel configuration. Thus, the worst case latencies are usually slightly ++higher than this actual value. The default value of 6 is not an arbitrary one. ++It is based on the fact that humans can detect jitter at approximately 7ms, so ++aiming for much lower latencies is pointless under most circumstances. It is ++worth noting this fact when comparing the latency performance of BFS to other ++schedulers. Worst case latencies being higher than 7ms are far worse than ++average latencies not being in the microsecond range. ++ ++Isochronous scheduling. ++ ++Isochronous scheduling is a unique scheduling policy designed to provide ++near-real-time performance to unprivileged (ie non-root) users without the ++ability to starve the machine indefinitely. Isochronous tasks (which means ++"same time") are set using, for example, the schedtool application like so: ++ ++ schedtool -I -e amarok ++ ++This will start the audio application "amarok" as SCHED_ISO. How SCHED_ISO works ++is that it has a priority level between true realtime tasks and SCHED_NORMAL ++which would allow them to preempt all normal tasks, in a SCHED_RR fashion (ie, ++if multiple SCHED_ISO tasks are running, they purely round robin at rr_interval ++rate). However if ISO tasks run for more than a tunable finite amount of time, ++they are then demoted back to SCHED_NORMAL scheduling. This finite amount of ++time is the percentage of _total CPU_ available across the machine, configurable ++as a percentage in the following "resource handling" tunable (as opposed to a ++scheduler tunable): ++ ++ /proc/sys/kernel/iso_cpu ++ ++and is set to 70% by default. It is calculated over a rolling 5 second average ++Because it is the total CPU available, it means that on a multi CPU machine, it ++is possible to have an ISO task running as realtime scheduling indefinitely on ++just one CPU, as the other CPUs will be available. Setting this to 100 is the ++equivalent of giving all users SCHED_RR access and setting it to 0 removes the ++ability to run any pseudo-realtime tasks. ++ ++A feature of BFS is that it detects when an application tries to obtain a ++realtime policy (SCHED_RR or SCHED_FIFO) and the caller does not have the ++appropriate privileges to use those policies. When it detects this, it will ++give the task SCHED_ISO policy instead. Thus it is transparent to the user. ++Because some applications constantly set their policy as well as their nice ++level, there is potential for them to undo the override specified by the user ++on the command line of setting the policy to SCHED_ISO. To counter this, once ++a task has been set to SCHED_ISO policy, it needs superuser privileges to set ++it back to SCHED_NORMAL. This will ensure the task remains ISO and all child ++processes and threads will also inherit the ISO policy. ++ ++Idleprio scheduling. ++ ++Idleprio scheduling is a scheduling policy designed to give out CPU to a task ++_only_ when the CPU would be otherwise idle. The idea behind this is to allow ++ultra low priority tasks to be run in the background that have virtually no ++effect on the foreground tasks. This is ideally suited to distributed computing ++clients (like setiathome, folding, mprime etc) but can also be used to start ++a video encode or so on without any slowdown of other tasks. To avoid this ++policy from grabbing shared resources and holding them indefinitely, if it ++detects a state where the task is waiting on I/O, the machine is about to ++suspend to ram and so on, it will transiently schedule them as SCHED_NORMAL. As ++per the Isochronous task management, once a task has been scheduled as IDLEPRIO, ++it cannot be put back to SCHED_NORMAL without superuser privileges. Tasks can ++be set to start as SCHED_IDLEPRIO with the schedtool command like so: ++ ++ schedtool -D -e ./mprime ++ ++Subtick accounting. ++ ++It is surprisingly difficult to get accurate CPU accounting, and in many cases, ++the accounting is done by simply determining what is happening at the precise ++moment a timer tick fires off. This becomes increasingly inaccurate as the ++timer tick frequency (HZ) is lowered. It is possible to create an application ++which uses almost 100% CPU, yet by being descheduled at the right time, records ++zero CPU usage. While the main problem with this is that there are possible ++security implications, it is also difficult to determine how much CPU a task ++really does use. BFS tries to use the sub-tick accounting from the TSC clock, ++where possible, to determine real CPU usage. This is not entirely reliable, but ++is far more likely to produce accurate CPU usage data than the existing designs ++and will not show tasks as consuming no CPU usage when they actually are. Thus, ++the amount of CPU reported as being used by BFS will more accurately represent ++how much CPU the task itself is using (as is shown for example by the 'time' ++application), so the reported values may be quite different to other schedulers. ++Values reported as the 'load' are more prone to problems with this design, but ++per process values are closer to real usage. When comparing throughput of BFS ++to other designs, it is important to compare the actual completed work in terms ++of total wall clock time taken and total work done, rather than the reported ++"cpu usage". ++ ++ ++Con Kolivas Fri Aug 27 2010 +diff --git a/Documentation/scheduler/sched-MuQSS.txt b/Documentation/scheduler/sched-MuQSS.txt +new file mode 100644 +index 000000000000..ae28b85c9995 +--- /dev/null ++++ b/Documentation/scheduler/sched-MuQSS.txt +@@ -0,0 +1,373 @@ ++MuQSS - The Multiple Queue Skiplist Scheduler by Con Kolivas. ++ ++MuQSS is a per-cpu runqueue variant of the original BFS scheduler with ++one 8 level skiplist per runqueue, and fine grained locking for much more ++scalability. ++ ++ ++Goals. ++ ++The goal of the Multiple Queue Skiplist Scheduler, referred to as MuQSS from ++here on (pronounced mux) is to completely do away with the complex designs of ++the past for the cpu process scheduler and instead implement one that is very ++simple in basic design. The main focus of MuQSS is to achieve excellent desktop ++interactivity and responsiveness without heuristics and tuning knobs that are ++difficult to understand, impossible to model and predict the effect of, and when ++tuned to one workload cause massive detriment to another, while still being ++scalable to many CPUs and processes. ++ ++ ++Design summary. ++ ++MuQSS is best described as per-cpu multiple runqueue, O(log n) insertion, O(1) ++lookup, earliest effective virtual deadline first tickless design, loosely based ++on EEVDF (earliest eligible virtual deadline first) and my previous Staircase ++Deadline scheduler, and evolved from the single runqueue O(n) BFS scheduler. ++Each component shall be described in order to understand the significance of, ++and reasoning for it. ++ ++ ++Design reasoning. ++ ++In BFS, the use of a single runqueue across all CPUs meant that each CPU would ++need to scan the entire runqueue looking for the process with the earliest ++deadline and schedule that next, regardless of which CPU it originally came ++from. This made BFS deterministic with respect to latency and provided ++guaranteed latencies dependent on number of processes and CPUs. The single ++runqueue, however, meant that all CPUs would compete for the single lock ++protecting it, which would lead to increasing lock contention as the number of ++CPUs rose and appeared to limit scalability of common workloads beyond 16 ++logical CPUs. Additionally, the O(n) lookup of the runqueue list obviously ++increased overhead proportionate to the number of queued proecesses and led to ++cache thrashing while iterating over the linked list. ++ ++MuQSS is an evolution of BFS, designed to maintain the same scheduling ++decision mechanism and be virtually deterministic without relying on the ++constrained design of the single runqueue by splitting out the single runqueue ++to be per-CPU and use skiplists instead of linked lists. ++ ++The original reason for going back to a single runqueue design for BFS was that ++once multiple runqueues are introduced, per-CPU or otherwise, there will be ++complex interactions as each runqueue will be responsible for the scheduling ++latency and fairness of the tasks only on its own runqueue, and to achieve ++fairness and low latency across multiple CPUs, any advantage in throughput of ++having CPU local tasks causes other disadvantages. This is due to requiring a ++very complex balancing system to at best achieve some semblance of fairness ++across CPUs and can only maintain relatively low latency for tasks bound to the ++same CPUs, not across them. To increase said fairness and latency across CPUs, ++the advantage of local runqueue locking, which makes for better scalability, is ++lost due to having to grab multiple locks. ++ ++MuQSS works around the problems inherent in multiple runqueue designs by ++making its skip lists priority ordered and through novel use of lockless ++examination of each other runqueue it can decide if it should take the earliest ++deadline task from another runqueue for latency reasons, or for CPU balancing ++reasons. It still does not have a balancing system, choosing to allow the ++next task scheduling decision and task wakeup CPU choice to allow balancing to ++happen by virtue of its choices. ++ ++As a further evolution of the design, MuQSS normally configures sharing of ++runqueues in a logical fashion for when CPU resources are shared for improved ++latency and throughput. By default it shares runqueues and locks between ++multicore siblings. Optionally it can be configured to run with sharing of ++SMT siblings only, all SMP packages or no sharing at all. Additionally it can ++be selected at boot time. ++ ++ ++Design details. ++ ++Custom skip list implementation: ++ ++To avoid the overhead of building up and tearing down skip list structures, ++the variant used by MuQSS has a number of optimisations making it specific for ++its use case in the scheduler. It uses static arrays of 8 'levels' instead of ++building up and tearing down structures dynamically. This makes each runqueue ++only scale O(log N) up to 64k tasks. However as there is one runqueue per CPU ++it means that it scales O(log N) up to 64k x number of logical CPUs which is ++far beyond the realistic task limits each CPU could handle. By being 8 levels ++it also makes the array exactly one cacheline in size. Additionally, each ++skip list node is bidirectional making insertion and removal amortised O(1), ++being O(k) where k is 1-8. Uniquely, we are only ever interested in the very ++first entry in each list at all times with MuQSS, so there is never a need to ++do a search and thus look up is always O(1). In interactive mode, the queues ++will be searched beyond their first entry if the first task is not suitable ++for affinity or SMT nice reasons. ++ ++Task insertion: ++ ++MuQSS inserts tasks into a per CPU runqueue as an O(log N) insertion into ++a custom skip list as described above (based on the original design by William ++Pugh). Insertion is ordered in such a way that there is never a need to do a ++search by ordering tasks according to static priority primarily, and then ++virtual deadline at the time of insertion. ++ ++Niffies: ++ ++Niffies are a monotonic forward moving timer not unlike the "jiffies" but are ++of nanosecond resolution. Niffies are calculated per-runqueue from the high ++resolution TSC timers, and in order to maintain fairness are synchronised ++between CPUs whenever both runqueues are locked concurrently. ++ ++Virtual deadline: ++ ++The key to achieving low latency, scheduling fairness, and "nice level" ++distribution in MuQSS is entirely in the virtual deadline mechanism. The one ++tunable in MuQSS is the rr_interval, or "round robin interval". This is the ++maximum time two SCHED_OTHER (or SCHED_NORMAL, the common scheduling policy) ++tasks of the same nice level will be running for, or looking at it the other ++way around, the longest duration two tasks of the same nice level will be ++delayed for. When a task requests cpu time, it is given a quota (time_slice) ++equal to the rr_interval and a virtual deadline. The virtual deadline is ++offset from the current time in niffies by this equation: ++ ++ niffies + (prio_ratio * rr_interval) ++ ++The prio_ratio is determined as a ratio compared to the baseline of nice -20 ++and increases by 10% per nice level. The deadline is a virtual one only in that ++no guarantee is placed that a task will actually be scheduled by this time, but ++it is used to compare which task should go next. There are three components to ++how a task is next chosen. First is time_slice expiration. If a task runs out ++of its time_slice, it is descheduled, the time_slice is refilled, and the ++deadline reset to that formula above. Second is sleep, where a task no longer ++is requesting CPU for whatever reason. The time_slice and deadline are _not_ ++adjusted in this case and are just carried over for when the task is next ++scheduled. Third is preemption, and that is when a newly waking task is deemed ++higher priority than a currently running task on any cpu by virtue of the fact ++that it has an earlier virtual deadline than the currently running task. The ++earlier deadline is the key to which task is next chosen for the first and ++second cases. ++ ++The CPU proportion of different nice tasks works out to be approximately the ++ ++ (prio_ratio difference)^2 ++ ++The reason it is squared is that a task's deadline does not change while it is ++running unless it runs out of time_slice. Thus, even if the time actually ++passes the deadline of another task that is queued, it will not get CPU time ++unless the current running task deschedules, and the time "base" (niffies) is ++constantly moving. ++ ++Task lookup: ++ ++As tasks are already pre-ordered according to anticipated scheduling order in ++the skip lists, lookup for the next suitable task per-runqueue is always a ++matter of simply selecting the first task in the 0th level skip list entry. ++In order to maintain optimal latency and fairness across CPUs, MuQSS does a ++novel examination of every other runqueue in cache locality order, choosing the ++best task across all runqueues. This provides near-determinism of how long any ++task across the entire system may wait before receiving CPU time. The other ++runqueues are first examine lockless and then trylocked to minimise the ++potential lock contention if they are likely to have a suitable better task. ++Each other runqueue lock is only held for as long as it takes to examine the ++entry for suitability. In "interactive" mode, the default setting, MuQSS will ++look for the best deadline task across all CPUs, while in !interactive mode, ++it will only select a better deadline task from another CPU if it is more ++heavily laden than the current one. ++ ++Lookup is therefore O(k) where k is number of CPUs. ++ ++ ++Latency. ++ ++Through the use of virtual deadlines to govern the scheduling order of normal ++tasks, queue-to-activation latency per runqueue is guaranteed to be bound by ++the rr_interval tunable which is set to 6ms by default. This means that the ++longest a CPU bound task will wait for more CPU is proportional to the number ++of running tasks and in the common case of 0-2 running tasks per CPU, will be ++under the 7ms threshold for human perception of jitter. Additionally, as newly ++woken tasks will have an early deadline from their previous runtime, the very ++tasks that are usually latency sensitive will have the shortest interval for ++activation, usually preempting any existing CPU bound tasks. ++ ++Tickless expiry: ++ ++A feature of MuQSS is that it is not tied to the resolution of the chosen tick ++rate in Hz, instead depending entirely on the high resolution timers where ++possible for sub-millisecond accuracy on timeouts regarless of the underlying ++tick rate. This allows MuQSS to be run with the low overhead of low Hz rates ++such as 100 by default, benefiting from the improved throughput and lower ++power usage it provides. Another advantage of this approach is that in ++combination with the Full No HZ option, which disables ticks on running task ++CPUs instead of just idle CPUs, the tick can be disabled at all times ++regardless of how many tasks are running instead of being limited to just one ++running task. Note that this option is NOT recommended for regular desktop ++users. ++ ++ ++Scalability and balancing. ++ ++Unlike traditional approaches where balancing is a combination of CPU selection ++at task wakeup and intermittent balancing based on a vast array of rules set ++according to architecture, busyness calculations and special case management, ++MuQSS indirectly balances on the fly at task wakeup and next task selection. ++During initialisation, MuQSS creates a cache coherency ordered list of CPUs for ++each logical CPU and uses this to aid task/CPU selection when CPUs are busy. ++Additionally it selects any idle CPUs, if they are available, at any time over ++busy CPUs according to the following preference: ++ ++ * Same thread, idle or busy cache, idle or busy threads ++ * Other core, same cache, idle or busy cache, idle threads. ++ * Same node, other CPU, idle cache, idle threads. ++ * Same node, other CPU, busy cache, idle threads. ++ * Other core, same cache, busy threads. ++ * Same node, other CPU, busy threads. ++ * Other node, other CPU, idle cache, idle threads. ++ * Other node, other CPU, busy cache, idle threads. ++ * Other node, other CPU, busy threads. ++ ++Mux is therefore SMT, MC and Numa aware without the need for extra ++intermittent balancing to maintain CPUs busy and make the most of cache ++coherency. ++ ++ ++Features ++ ++As the initial prime target audience for MuQSS was the average desktop user, it ++was designed to not need tweaking, tuning or have features set to obtain benefit ++from it. Thus the number of knobs and features has been kept to an absolute ++minimum and should not require extra user input for the vast majority of cases. ++There are 3 optional tunables, and 2 extra scheduling policies. The rr_interval, ++interactive, and iso_cpu tunables, and the SCHED_ISO and SCHED_IDLEPRIO ++policies. In addition to this, MuQSS also uses sub-tick accounting. What MuQSS ++does _not_ now feature is support for CGROUPS. The average user should neither ++need to know what these are, nor should they need to be using them to have good ++desktop behaviour. However since some applications refuse to work without ++cgroups, one can enable them with MuQSS as a stub and the filesystem will be ++created which will allow the applications to work. ++ ++rr_interval: ++ ++ /proc/sys/kernel/rr_interval ++ ++The value is in milliseconds, and the default value is set to 6. Valid values ++are from 1 to 1000 Decreasing the value will decrease latencies at the cost of ++decreasing throughput, while increasing it will improve throughput, but at the ++cost of worsening latencies. It is based on the fact that humans can detect ++jitter at approximately 7ms, so aiming for much lower latencies is pointless ++under most circumstances. It is worth noting this fact when comparing the ++latency performance of MuQSS to other schedulers. Worst case latencies being ++higher than 7ms are far worse than average latencies not being in the ++microsecond range. ++ ++interactive: ++ ++ /proc/sys/kernel/interactive ++ ++The value is a simple boolean of 1 for on and 0 for off and is set to on by ++default. Disabling this will disable the near-determinism of MuQSS when ++selecting the next task by not examining all CPUs for the earliest deadline ++task, or which CPU to wake to, instead prioritising CPU balancing for improved ++throughput. Latency will still be bound by rr_interval, but on a per-CPU basis ++instead of across the whole system. ++ ++Runqueue sharing. ++ ++By default MuQSS chooses to share runqueue resources (specifically the skip ++list and locking) between multicore siblings. It is configurable at build time ++to select between None, SMT, MC and SMP, corresponding to no sharing, sharing ++only between simultaneous mulithreading siblings, multicore siblings, or ++symmetric multiprocessing physical packages. Additionally it can be se at ++bootime with the use of the rqshare parameter. The reason for configurability ++is that some architectures have CPUs with many multicore siblings (>= 16) ++where it may be detrimental to throughput to share runqueues and another ++sharing option may be desirable. Additionally, more sharing than usual can ++improve latency on a system-wide level at the expense of throughput if desired. ++ ++The options are: ++none, smt, mc, smp ++ ++eg: ++ rqshare=mc ++ ++Isochronous scheduling: ++ ++Isochronous scheduling is a unique scheduling policy designed to provide ++near-real-time performance to unprivileged (ie non-root) users without the ++ability to starve the machine indefinitely. Isochronous tasks (which means ++"same time") are set using, for example, the schedtool application like so: ++ ++ schedtool -I -e amarok ++ ++This will start the audio application "amarok" as SCHED_ISO. How SCHED_ISO works ++is that it has a priority level between true realtime tasks and SCHED_NORMAL ++which would allow them to preempt all normal tasks, in a SCHED_RR fashion (ie, ++if multiple SCHED_ISO tasks are running, they purely round robin at rr_interval ++rate). However if ISO tasks run for more than a tunable finite amount of time, ++they are then demoted back to SCHED_NORMAL scheduling. This finite amount of ++time is the percentage of CPU available per CPU, configurable as a percentage in ++the following "resource handling" tunable (as opposed to a scheduler tunable): ++ ++iso_cpu: ++ ++ /proc/sys/kernel/iso_cpu ++ ++and is set to 70% by default. It is calculated over a rolling 5 second average ++Because it is the total CPU available, it means that on a multi CPU machine, it ++is possible to have an ISO task running as realtime scheduling indefinitely on ++just one CPU, as the other CPUs will be available. Setting this to 100 is the ++equivalent of giving all users SCHED_RR access and setting it to 0 removes the ++ability to run any pseudo-realtime tasks. ++ ++A feature of MuQSS is that it detects when an application tries to obtain a ++realtime policy (SCHED_RR or SCHED_FIFO) and the caller does not have the ++appropriate privileges to use those policies. When it detects this, it will ++give the task SCHED_ISO policy instead. Thus it is transparent to the user. ++ ++ ++Idleprio scheduling: ++ ++Idleprio scheduling is a scheduling policy designed to give out CPU to a task ++_only_ when the CPU would be otherwise idle. The idea behind this is to allow ++ultra low priority tasks to be run in the background that have virtually no ++effect on the foreground tasks. This is ideally suited to distributed computing ++clients (like setiathome, folding, mprime etc) but can also be used to start a ++video encode or so on without any slowdown of other tasks. To avoid this policy ++from grabbing shared resources and holding them indefinitely, if it detects a ++state where the task is waiting on I/O, the machine is about to suspend to ram ++and so on, it will transiently schedule them as SCHED_NORMAL. Once a task has ++been scheduled as IDLEPRIO, it cannot be put back to SCHED_NORMAL without ++superuser privileges since it is effectively a lower scheduling policy. Tasks ++can be set to start as SCHED_IDLEPRIO with the schedtool command like so: ++ ++schedtool -D -e ./mprime ++ ++Subtick accounting: ++ ++It is surprisingly difficult to get accurate CPU accounting, and in many cases, ++the accounting is done by simply determining what is happening at the precise ++moment a timer tick fires off. This becomes increasingly inaccurate as the timer ++tick frequency (HZ) is lowered. It is possible to create an application which ++uses almost 100% CPU, yet by being descheduled at the right time, records zero ++CPU usage. While the main problem with this is that there are possible security ++implications, it is also difficult to determine how much CPU a task really does ++use. Mux uses sub-tick accounting from the TSC clock to determine real CPU ++usage. Thus, the amount of CPU reported as being used by MuQSS will more ++accurately represent how much CPU the task itself is using (as is shown for ++example by the 'time' application), so the reported values may be quite ++different to other schedulers. When comparing throughput of MuQSS to other ++designs, it is important to compare the actual completed work in terms of total ++wall clock time taken and total work done, rather than the reported "cpu usage". ++ ++Symmetric MultiThreading (SMT) aware nice: ++ ++SMT, a.k.a. hyperthreading, is a very common feature on modern CPUs. While the ++logical CPU count rises by adding thread units to each CPU core, allowing more ++than one task to be run simultaneously on the same core, the disadvantage of it ++is that the CPU power is shared between the tasks, not summating to the power ++of two CPUs. The practical upshot of this is that two tasks running on ++separate threads of the same core run significantly slower than if they had one ++core each to run on. While smart CPU selection allows each task to have a core ++to itself whenever available (as is done on MuQSS), it cannot offset the ++slowdown that occurs when the cores are all loaded and only a thread is left. ++Most of the time this is harmless as the CPU is effectively overloaded at this ++point and the extra thread is of benefit. However when running a niced task in ++the presence of an un-niced task (say nice 19 v nice 0), the nice task gets ++precisely the same amount of CPU power as the unniced one. MuQSS has an ++optional configuration feature known as SMT-NICE which selectively idles the ++secondary niced thread for a period proportional to the nice difference, ++allowing CPU distribution according to nice level to be maintained, at the ++expense of a small amount of extra overhead. If this is configured in on a ++machine without SMT threads, the overhead is minimal. ++ ++ ++Con Kolivas Sat, 29th October 2016 +diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt +index 1b8775298cf7..4f0a97784d35 100644 +--- a/Documentation/sysctl/kernel.txt ++++ b/Documentation/sysctl/kernel.txt +@@ -41,6 +41,7 @@ show up in /proc/sys/kernel: + - hung_task_check_interval_secs + - hung_task_warnings + - hyperv_record_panic_msg ++- iso_cpu + - kexec_load_disabled + - kptr_restrict + - l2cr [ PPC only ] +@@ -76,6 +77,7 @@ show up in /proc/sys/kernel: + - randomize_va_space + - real-root-dev ==> Documentation/admin-guide/initrd.rst + - reboot-cmd [ SPARC only ] ++- rr_interval + - rtsig-max + - rtsig-nr + - seccomp/ ==> Documentation/userspace-api/seccomp_filter.rst +@@ -98,6 +100,7 @@ show up in /proc/sys/kernel: + - unknown_nmi_panic + - watchdog + - watchdog_thresh ++- yield_type + - version + + ============================================================== +@@ -436,6 +439,16 @@ When kptr_restrict is set to (2), kernel pointers printed using + + ============================================================== + ++iso_cpu: (MuQSS CPU scheduler only). ++ ++This sets the percentage cpu that the unprivileged SCHED_ISO tasks can ++run effectively at realtime priority, averaged over a rolling five ++seconds over the -whole- system, meaning all cpus. ++ ++Set to 70 (percent) by default. ++ ++============================================================== ++ + l2cr: (PPC only) + + This flag controls the L2 cache of G3 processor boards. If +@@ -863,6 +876,20 @@ rebooting. ??? + + ============================================================== + ++rr_interval: (MuQSS CPU scheduler only) ++ ++This is the smallest duration that any cpu process scheduling unit ++will run for. Increasing this value can increase throughput of cpu ++bound tasks substantially but at the expense of increased latencies ++overall. Conversely decreasing it will decrease average and maximum ++latencies but at the expense of throughput. This value is in ++milliseconds and the default value chosen depends on the number of ++cpus available at scheduler initialisation with a minimum of 6. ++ ++Valid values are from 1-1000. ++ ++============================================================== ++ + rtsig-max & rtsig-nr: + + The file rtsig-max can be used to tune the maximum number +@@ -1120,3 +1147,13 @@ The softlockup threshold is (2 * watchdog_thresh). Setting this + tunable to zero will disable lockup detection altogether. + + ============================================================== ++ ++yield_type: (MuQSS CPU scheduler only) ++ ++This determines what type of yield calls to sched_yield will perform. ++ ++ 0: No yield. ++ 1: Yield only to better priority/deadline tasks. (default) ++ 2: Expire timeslice and recalculate deadline. ++ ++============================================================== +diff --git a/arch/arc/configs/tb10x_defconfig b/arch/arc/configs/tb10x_defconfig +index e71ade3cf9c8..771f0bad7a3c 100644 +--- a/arch/arc/configs/tb10x_defconfig ++++ b/arch/arc/configs/tb10x_defconfig +@@ -29,7 +29,7 @@ CONFIG_ARC_PLAT_TB10X=y + CONFIG_ARC_CACHE_LINE_SHIFT=5 + CONFIG_HZ=250 + CONFIG_ARC_BUILTIN_DTB_NAME="abilis_tb100_dvk" +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + # CONFIG_COMPACTION is not set + CONFIG_NET=y + CONFIG_PACKET=y +diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig +index bb6a35fb1dd7..ff58a38d0d5b 100644 +--- a/arch/arm/configs/bcm2835_defconfig ++++ b/arch/arm/configs/bcm2835_defconfig +@@ -29,7 +29,7 @@ CONFIG_MODULE_UNLOAD=y + CONFIG_ARCH_MULTI_V6=y + CONFIG_ARCH_BCM=y + CONFIG_ARCH_BCM2835=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_AEABI=y + CONFIG_KSM=y + CONFIG_CLEANCACHE=y +diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig +index 1ad5736c8fa6..cf116a40dc1c 100644 +--- a/arch/arm/configs/imx_v6_v7_defconfig ++++ b/arch/arm/configs/imx_v6_v7_defconfig +@@ -44,6 +44,7 @@ CONFIG_PCI_MSI=y + CONFIG_PCI_IMX6=y + CONFIG_SMP=y + CONFIG_ARM_PSCI=y ++CONFIG_PREEMPT=y + CONFIG_HIGHMEM=y + CONFIG_FORCE_MAX_ZONEORDER=14 + CONFIG_CMDLINE="noinitrd console=ttymxc0,115200" +diff --git a/arch/arm/configs/mps2_defconfig b/arch/arm/configs/mps2_defconfig +index 0bcdec7cc169..10ceaefa51e0 100644 +--- a/arch/arm/configs/mps2_defconfig ++++ b/arch/arm/configs/mps2_defconfig +@@ -18,7 +18,7 @@ CONFIG_ARCH_MPS2=y + CONFIG_SET_MEM_PARAM=y + CONFIG_DRAM_BASE=0x21000000 + CONFIG_DRAM_SIZE=0x1000000 +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + # CONFIG_ATAGS is not set + CONFIG_ZBOOT_ROM_TEXT=0x0 + CONFIG_ZBOOT_ROM_BSS=0x0 +diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig +index 38480596c449..d509ff66f73a 100644 +--- a/arch/arm/configs/mxs_defconfig ++++ b/arch/arm/configs/mxs_defconfig +@@ -1,7 +1,7 @@ + CONFIG_SYSVIPC=y + CONFIG_NO_HZ=y + CONFIG_HIGH_RES_TIMERS=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT_VOLUNTARY=n + CONFIG_TASKSTATS=y + CONFIG_TASK_DELAY_ACCT=y + CONFIG_TASK_XACCT=y +@@ -27,6 +27,11 @@ CONFIG_MODVERSIONS=y + CONFIG_BLK_DEV_INTEGRITY=y + # CONFIG_IOSCHED_DEADLINE is not set + # CONFIG_IOSCHED_CFQ is not set ++# CONFIG_ARCH_MULTI_V7 is not set ++CONFIG_ARCH_MXS=y ++# CONFIG_ARM_THUMB is not set ++CONFIG_PREEMPT=y ++CONFIG_AEABI=y + CONFIG_NET=y + CONFIG_PACKET=y + CONFIG_UNIX=y +diff --git a/arch/blackfin/configs/BF518F-EZBRD_defconfig b/arch/blackfin/configs/BF518F-EZBRD_defconfig +new file mode 100644 +index 000000000000..39b91dfa55b5 +--- /dev/null ++++ b/arch/blackfin/configs/BF518F-EZBRD_defconfig +@@ -0,0 +1,121 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF518=y ++CONFIG_IRQ_TIMER0=12 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_JEDECPROBE=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++CONFIG_NET_BFIN=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_USB_SUPPORT is not set ++CONFIG_MMC=y ++CONFIG_SDH_BFIN=y ++CONFIG_SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=m ++# CONFIG_DNOTIFY is not set ++CONFIG_VFAT_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRC_CCITT=m +diff --git a/arch/blackfin/configs/BF526-EZBRD_defconfig b/arch/blackfin/configs/BF526-EZBRD_defconfig +new file mode 100644 +index 000000000000..675cadb3a0c4 +--- /dev/null ++++ b/arch/blackfin/configs/BF526-EZBRD_defconfig +@@ -0,0 +1,158 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF526=y ++CONFIG_IRQ_TIMER0=12 ++CONFIG_BFIN526_EZBRD=y ++CONFIG_IRQ_USB_INT0=11 ++CONFIG_IRQ_USB_INT1=11 ++CONFIG_IRQ_USB_INT2=11 ++CONFIG_IRQ_USB_DMA=11 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_INTELEXT=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_PHYSMAP=y ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_NAND=m ++CONFIG_MTD_SPI_NOR=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_SCSI=y ++# CONFIG_SCSI_PROC_FS is not set ++CONFIG_BLK_DEV_SD=y ++CONFIG_BLK_DEV_SR=m ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_NETDEVICES=y ++CONFIG_NET_BFIN=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT_FF_MEMLESS=m ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_HID_A4TECH=y ++CONFIG_HID_APPLE=y ++CONFIG_HID_BELKIN=y ++CONFIG_HID_CHERRY=y ++CONFIG_HID_CHICONY=y ++CONFIG_HID_CYPRESS=y ++CONFIG_HID_EZKEY=y ++CONFIG_HID_GYRATION=y ++CONFIG_HID_LOGITECH=y ++CONFIG_HID_MICROSOFT=y ++CONFIG_HID_MONTEREY=y ++CONFIG_HID_PANTHERLORD=y ++CONFIG_HID_PETALYNX=y ++CONFIG_HID_SAMSUNG=y ++CONFIG_HID_SONY=y ++CONFIG_HID_SUNPLUS=y ++CONFIG_USB=y ++# CONFIG_USB_DEVICE_CLASS is not set ++CONFIG_USB_OTG_BLACKLIST_HUB=y ++CONFIG_USB_MON=y ++CONFIG_USB_STORAGE=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=m ++# CONFIG_DNOTIFY is not set ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_VFAT_FS=m ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRC_CCITT=m +diff --git a/arch/blackfin/configs/BF527-EZKIT-V2_defconfig b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig +new file mode 100644 +index 000000000000..4c517c443af5 +--- /dev/null ++++ b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig +@@ -0,0 +1,188 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF527=y ++CONFIG_BF_REV_0_2=y ++CONFIG_BFIN527_EZKIT_V2=y ++CONFIG_IRQ_USB_INT0=11 ++CONFIG_IRQ_USB_INT1=11 ++CONFIG_IRQ_USB_INT2=11 ++CONFIG_IRQ_USB_DMA=11 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++CONFIG_BFIN_SIR0=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_JEDECPROBE=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_NAND=m ++CONFIG_MTD_SPI_NOR=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_SCSI=y ++# CONFIG_SCSI_PROC_FS is not set ++CONFIG_BLK_DEV_SD=y ++CONFIG_BLK_DEV_SR=m ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_NETDEVICES=y ++CONFIG_NET_BFIN=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT_FF_MEMLESS=m ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=y ++CONFIG_KEYBOARD_ADP5520=y ++# CONFIG_KEYBOARD_ATKBD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_TOUCHSCREEN=y ++CONFIG_TOUCHSCREEN_AD7879=y ++CONFIG_TOUCHSCREEN_AD7879_I2C=y ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_PMIC_ADP5520=y ++CONFIG_FB=y ++CONFIG_FB_BFIN_LQ035Q1=y ++CONFIG_BACKLIGHT_LCD_SUPPORT=y ++CONFIG_FRAMEBUFFER_CONSOLE=y ++CONFIG_LOGO=y ++# CONFIG_LOGO_LINUX_MONO is not set ++# CONFIG_LOGO_LINUX_VGA16 is not set ++# CONFIG_LOGO_LINUX_CLUT224 is not set ++# CONFIG_LOGO_BLACKFIN_VGA16 is not set ++CONFIG_SOUND=y ++CONFIG_SND=y ++CONFIG_SND_SOC=y ++CONFIG_SND_BF5XX_I2S=y ++CONFIG_SND_BF5XX_SOC_SSM2602=y ++CONFIG_HID_A4TECH=y ++CONFIG_HID_APPLE=y ++CONFIG_HID_BELKIN=y ++CONFIG_HID_CHERRY=y ++CONFIG_HID_CHICONY=y ++CONFIG_HID_CYPRESS=y ++CONFIG_HID_EZKEY=y ++CONFIG_HID_GYRATION=y ++CONFIG_HID_LOGITECH=y ++CONFIG_HID_MICROSOFT=y ++CONFIG_HID_MONTEREY=y ++CONFIG_HID_PANTHERLORD=y ++CONFIG_HID_PETALYNX=y ++CONFIG_HID_SAMSUNG=y ++CONFIG_HID_SONY=y ++CONFIG_HID_SUNPLUS=y ++CONFIG_USB=y ++# CONFIG_USB_DEVICE_CLASS is not set ++CONFIG_USB_OTG_BLACKLIST_HUB=y ++CONFIG_USB_MON=y ++CONFIG_USB_MUSB_HDRC=y ++CONFIG_USB_MUSB_BLACKFIN=y ++CONFIG_USB_STORAGE=y ++CONFIG_USB_GADGET=y ++CONFIG_NEW_LEDS=y ++CONFIG_LEDS_CLASS=y ++CONFIG_LEDS_ADP5520=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=m ++# CONFIG_DNOTIFY is not set ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_UDF_FS=m ++CONFIG_VFAT_FS=m ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig +new file mode 100644 +index 000000000000..bf8df3e6cf02 +--- /dev/null ++++ b/arch/blackfin/configs/BF527-EZKIT_defconfig +@@ -0,0 +1,181 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF527=y ++CONFIG_BF_REV_0_1=y ++CONFIG_IRQ_USB_INT0=11 ++CONFIG_IRQ_USB_INT1=11 ++CONFIG_IRQ_USB_INT2=11 ++CONFIG_IRQ_USB_DMA=11 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++CONFIG_BFIN_SIR0=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_JEDECPROBE=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_NAND=m ++CONFIG_MTD_SPI_NOR=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_SCSI=y ++# CONFIG_SCSI_PROC_FS is not set ++CONFIG_BLK_DEV_SD=y ++CONFIG_BLK_DEV_SR=m ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_NETDEVICES=y ++CONFIG_NET_BFIN=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT_FF_MEMLESS=m ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_FB=y ++CONFIG_FB_BFIN_T350MCQB=y ++CONFIG_BACKLIGHT_LCD_SUPPORT=y ++CONFIG_LCD_LTV350QV=m ++CONFIG_FRAMEBUFFER_CONSOLE=y ++CONFIG_LOGO=y ++# CONFIG_LOGO_LINUX_MONO is not set ++# CONFIG_LOGO_LINUX_VGA16 is not set ++# CONFIG_LOGO_LINUX_CLUT224 is not set ++# CONFIG_LOGO_BLACKFIN_VGA16 is not set ++CONFIG_SOUND=y ++CONFIG_SND=y ++CONFIG_SND_SOC=y ++CONFIG_SND_BF5XX_I2S=y ++CONFIG_SND_BF5XX_SOC_SSM2602=y ++CONFIG_HID_A4TECH=y ++CONFIG_HID_APPLE=y ++CONFIG_HID_BELKIN=y ++CONFIG_HID_CHERRY=y ++CONFIG_HID_CHICONY=y ++CONFIG_HID_CYPRESS=y ++CONFIG_HID_EZKEY=y ++CONFIG_HID_GYRATION=y ++CONFIG_HID_LOGITECH=y ++CONFIG_HID_MICROSOFT=y ++CONFIG_HID_MONTEREY=y ++CONFIG_HID_PANTHERLORD=y ++CONFIG_HID_PETALYNX=y ++CONFIG_HID_SAMSUNG=y ++CONFIG_HID_SONY=y ++CONFIG_HID_SUNPLUS=y ++CONFIG_USB=y ++# CONFIG_USB_DEVICE_CLASS is not set ++CONFIG_USB_OTG_BLACKLIST_HUB=y ++CONFIG_USB_MON=y ++CONFIG_USB_MUSB_HDRC=y ++CONFIG_MUSB_PIO_ONLY=y ++CONFIG_USB_MUSB_BLACKFIN=y ++CONFIG_MUSB_PIO_ONLY=y ++CONFIG_USB_STORAGE=y ++CONFIG_USB_GADGET=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=m ++# CONFIG_DNOTIFY is not set ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_UDF_FS=m ++CONFIG_VFAT_FS=m ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF527-TLL6527M_defconfig b/arch/blackfin/configs/BF527-TLL6527M_defconfig +new file mode 100644 +index 000000000000..0220b3b15c53 +--- /dev/null ++++ b/arch/blackfin/configs/BF527-TLL6527M_defconfig +@@ -0,0 +1,178 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_LOCALVERSION="DEV_0-1_pre2010" ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++CONFIG_PREEMPT=y ++CONFIG_BF527=y ++CONFIG_BF_REV_0_2=y ++CONFIG_BFIN527_TLL6527M=y ++CONFIG_BF527_UART1_PORTG=y ++CONFIG_IRQ_USB_INT0=11 ++CONFIG_IRQ_USB_INT1=11 ++CONFIG_IRQ_USB_INT2=11 ++CONFIG_IRQ_USB_DMA=11 ++CONFIG_BOOT_LOAD=0x400000 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=y ++CONFIG_DMA_UNCACHED_2M=y ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_0=0xFFC2 ++CONFIG_BANK_1=0xFFC2 ++CONFIG_BANK_2=0xFFC2 ++CONFIG_BANK_3=0xFFC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++CONFIG_BFIN_SIR0=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_INTELEXT=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=y ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_GPIO_ADDR=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_SCSI=y ++# CONFIG_SCSI_PROC_FS is not set ++CONFIG_BLK_DEV_SD=y ++CONFIG_BLK_DEV_SR=m ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_NETDEVICES=y ++CONFIG_NET_ETHERNET=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=y ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_TOUCHSCREEN=y ++CONFIG_TOUCHSCREEN_AD7879=m ++CONFIG_INPUT_MISC=y ++CONFIG_INPUT_AD714X=y ++CONFIG_INPUT_ADXL34X=y ++# CONFIG_SERIO is not set ++CONFIG_BFIN_PPI=m ++CONFIG_BFIN_SIMPLE_TIMER=m ++CONFIG_BFIN_SPORT=m ++# CONFIG_CONSOLE_TRANSLATIONS is not set ++# CONFIG_DEVKMEM is not set ++CONFIG_BFIN_JTAG_COMM=m ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_LEGACY_PTYS is not set ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C_CHARDEV=y ++# CONFIG_I2C_HELPER_AUTO is not set ++CONFIG_I2C_SMBUS=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_MEDIA_SUPPORT=y ++CONFIG_VIDEO_DEV=y ++# CONFIG_MEDIA_TUNER_CUSTOMISE is not set ++CONFIG_VIDEO_HELPER_CHIPS_AUTO=y ++CONFIG_VIDEO_BLACKFIN_CAM=m ++CONFIG_OV9655=y ++CONFIG_FB=y ++CONFIG_BACKLIGHT_LCD_SUPPORT=y ++CONFIG_FRAMEBUFFER_CONSOLE=y ++CONFIG_FONTS=y ++CONFIG_FONT_6x11=y ++CONFIG_LOGO=y ++# CONFIG_LOGO_LINUX_MONO is not set ++# CONFIG_LOGO_LINUX_VGA16 is not set ++# CONFIG_LOGO_LINUX_CLUT224 is not set ++# CONFIG_LOGO_BLACKFIN_VGA16 is not set ++CONFIG_SOUND=y ++CONFIG_SND=y ++CONFIG_SND_MIXER_OSS=y ++CONFIG_SND_PCM_OSS=y ++CONFIG_SND_SOC=y ++CONFIG_SND_BF5XX_I2S=y ++CONFIG_SND_BF5XX_SOC_SSM2602=y ++# CONFIG_HID_SUPPORT is not set ++# CONFIG_USB_SUPPORT is not set ++CONFIG_MMC=m ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=y ++# CONFIG_DNOTIFY is not set ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_UDF_FS=m ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_JFFS2_FS=y ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++# CONFIG_RPCSEC_GSS_KRB5 is not set ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRC7=m +diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig +new file mode 100644 +index 000000000000..6023e3fd2c48 +--- /dev/null ++++ b/arch/blackfin/configs/BF533-EZKIT_defconfig +@@ -0,0 +1,114 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BFIN533_EZKIT=y ++CONFIG_TIMER0=11 ++CONFIG_CLKIN_HZ=27000000 ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0xAAC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_JEDECPROBE=y ++CONFIG_MTD_CFI_AMDSTD=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=y ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_PHYSMAP=y ++CONFIG_MTD_PLATRAM=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++CONFIG_SMC91X=y ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT=m ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_USB_SUPPORT is not set ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig +new file mode 100644 +index 000000000000..f5cd0f18b711 +--- /dev/null ++++ b/arch/blackfin/configs/BF533-STAMP_defconfig +@@ -0,0 +1,124 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_TIMER0=11 ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0xAAC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=m ++CONFIG_MTD_CFI_AMDSTD=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++CONFIG_SMC91X=y ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=m ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_GPIO=m ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_FB=m ++CONFIG_FIRMWARE_EDID=y ++CONFIG_SOUND=m ++CONFIG_SND=m ++CONFIG_SND_MIXER_OSS=m ++CONFIG_SND_PCM_OSS=m ++CONFIG_SND_SOC=m ++CONFIG_SND_BF5XX_I2S=m ++CONFIG_SND_BF5XX_SOC_AD73311=m ++# CONFIG_USB_SUPPORT is not set ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig +new file mode 100644 +index 000000000000..48085fde7f9e +--- /dev/null ++++ b/arch/blackfin/configs/BF537-STAMP_defconfig +@@ -0,0 +1,136 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF537=y ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_CAN=m ++CONFIG_CAN_RAW=m ++CONFIG_CAN_BCM=m ++CONFIG_CAN_BFIN=m ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++CONFIG_BFIN_SIR1=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=m ++CONFIG_MTD_CFI_AMDSTD=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_PHYSMAP=m ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_SPI_NOR=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++CONFIG_NET_BFIN=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=m ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_BLACKFIN_TWI=m ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_FB=m ++CONFIG_FIRMWARE_EDID=y ++CONFIG_BACKLIGHT_LCD_SUPPORT=y ++CONFIG_SOUND=m ++CONFIG_SND=m ++CONFIG_SND_MIXER_OSS=m ++CONFIG_SND_PCM_OSS=m ++CONFIG_SND_SOC=m ++CONFIG_SND_BF5XX_I2S=m ++CONFIG_SND_BF5XX_SOC_AD73311=m ++# CONFIG_USB_SUPPORT is not set ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF538-EZKIT_defconfig b/arch/blackfin/configs/BF538-EZKIT_defconfig +new file mode 100644 +index 000000000000..12deeaaef3cb +--- /dev/null ++++ b/arch/blackfin/configs/BF538-EZKIT_defconfig +@@ -0,0 +1,133 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF538=y ++CONFIG_IRQ_TIMER0=12 ++CONFIG_IRQ_TIMER1=12 ++CONFIG_IRQ_TIMER2=12 ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_PM=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_CAN=m ++CONFIG_CAN_RAW=m ++CONFIG_CAN_BCM=m ++CONFIG_CAN_DEV=m ++CONFIG_CAN_BFIN=m ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=m ++CONFIG_MTD_CFI_AMDSTD=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_PHYSMAP=m ++CONFIG_MTD_NAND=m ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++CONFIG_PHYLIB=y ++CONFIG_SMSC_PHY=y ++CONFIG_NET_ETHERNET=y ++CONFIG_SMC91X=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_TOUCHSCREEN=y ++CONFIG_TOUCHSCREEN_AD7879=y ++CONFIG_TOUCHSCREEN_AD7879_SPI=y ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_DEVKMEM is not set ++CONFIG_BFIN_JTAG_COMM=m ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++CONFIG_SERIAL_BFIN_UART1=y ++CONFIG_SERIAL_BFIN_UART2=y ++# CONFIG_LEGACY_PTYS is not set ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=m ++CONFIG_I2C_BLACKFIN_TWI=m ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_FB=m ++CONFIG_FB_BFIN_LQ035Q1=m ++# CONFIG_USB_SUPPORT is not set ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_SMB_FS=m ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig +new file mode 100644 +index 000000000000..6a68ffc55b5a +--- /dev/null ++++ b/arch/blackfin/configs/BF548-EZKIT_defconfig +@@ -0,0 +1,207 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF548_std=y ++CONFIG_IRQ_TIMER0=11 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_CACHELINE_ALIGNED_L1=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_DMA_UNCACHED_2M=y ++CONFIG_BFIN_EXTMEM_WRITETHROUGH=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_EBIU_MBSCTLVAL=0x0 ++CONFIG_EBIU_MODEVAL=0x1 ++CONFIG_EBIU_FCTLVAL=0x6 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_CAN=m ++CONFIG_CAN_RAW=m ++CONFIG_CAN_BCM=m ++CONFIG_CAN_BFIN=m ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRTTY_SIR=m ++CONFIG_BFIN_SIR=m ++CONFIG_BFIN_SIR3=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++CONFIG_FW_LOADER=m ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_INTELEXT=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_PHYSMAP=y ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_NAND=y ++CONFIG_MTD_NAND_BF5XX=y ++# CONFIG_MTD_NAND_BF5XX_HWECC is not set ++CONFIG_MTD_SPI_NOR=y ++CONFIG_BLK_DEV_RAM=y ++# CONFIG_SCSI_PROC_FS is not set ++CONFIG_BLK_DEV_SD=y ++CONFIG_BLK_DEV_SR=m ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_ATA=y ++# CONFIG_SATA_PMP is not set ++CONFIG_PATA_BF54X=y ++CONFIG_NETDEVICES=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++CONFIG_SMSC911X=y ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT_FF_MEMLESS=m ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++CONFIG_INPUT_EVBUG=m ++# CONFIG_KEYBOARD_ATKBD is not set ++CONFIG_KEYBOARD_BFIN=y ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_TOUCHSCREEN=y ++CONFIG_TOUCHSCREEN_AD7877=m ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_FB=y ++CONFIG_FIRMWARE_EDID=y ++CONFIG_FB_BF54X_LQ043=y ++CONFIG_FRAMEBUFFER_CONSOLE=y ++CONFIG_FONTS=y ++CONFIG_FONT_6x11=y ++CONFIG_LOGO=y ++# CONFIG_LOGO_LINUX_MONO is not set ++# CONFIG_LOGO_LINUX_VGA16 is not set ++# CONFIG_LOGO_LINUX_CLUT224 is not set ++# CONFIG_LOGO_BLACKFIN_VGA16 is not set ++CONFIG_SOUND=y ++CONFIG_SND=y ++CONFIG_SND_MIXER_OSS=y ++CONFIG_SND_PCM_OSS=y ++CONFIG_SND_SOC=y ++CONFIG_SND_BF5XX_AC97=y ++CONFIG_SND_BF5XX_SOC_AD1980=y ++CONFIG_HID_A4TECH=y ++CONFIG_HID_APPLE=y ++CONFIG_HID_BELKIN=y ++CONFIG_HID_CHERRY=y ++CONFIG_HID_CHICONY=y ++CONFIG_HID_CYPRESS=y ++CONFIG_HID_EZKEY=y ++CONFIG_HID_GYRATION=y ++CONFIG_HID_LOGITECH=y ++CONFIG_HID_MICROSOFT=y ++CONFIG_HID_MONTEREY=y ++CONFIG_HID_PANTHERLORD=y ++CONFIG_HID_PETALYNX=y ++CONFIG_HID_SAMSUNG=y ++CONFIG_HID_SONY=y ++CONFIG_HID_SUNPLUS=y ++CONFIG_USB=y ++# CONFIG_USB_DEVICE_CLASS is not set ++CONFIG_USB_OTG_BLACKLIST_HUB=y ++CONFIG_USB_MON=y ++CONFIG_USB_MUSB_HDRC=y ++CONFIG_USB_MUSB_BLACKFIN=y ++CONFIG_USB_STORAGE=y ++CONFIG_USB_GADGET=y ++CONFIG_MMC=y ++CONFIG_MMC_BLOCK=m ++CONFIG_SDH_BFIN=y ++CONFIG_SDH_BFIN_MISSING_CMD_PULLUP_WORKAROUND=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++# CONFIG_DNOTIFY is not set ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_ZISOFS=y ++CONFIG_MSDOS_FS=m ++CONFIG_VFAT_FS=m ++CONFIG_NTFS_FS=m ++CONFIG_NTFS_RW=y ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_NFSD=m ++CONFIG_NFSD_V3=y ++CONFIG_CIFS=y ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF561-ACVILON_defconfig b/arch/blackfin/configs/BF561-ACVILON_defconfig +new file mode 100644 +index 000000000000..e9f3ba783a4e +--- /dev/null ++++ b/arch/blackfin/configs/BF561-ACVILON_defconfig +@@ -0,0 +1,149 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_SYSFS_DEPRECATED_V2=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++CONFIG_PREEMPT=y ++CONFIG_BF561=y ++CONFIG_BF_REV_0_5=y ++CONFIG_IRQ_TIMER0=10 ++CONFIG_BFIN561_ACVILON=y ++# CONFIG_BF561_COREB is not set ++CONFIG_CLKIN_HZ=12000000 ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=y ++CONFIG_DMA_UNCACHED_4M=y ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_0=0x99b2 ++CONFIG_BANK_1=0x3350 ++CONFIG_BANK_3=0xAAC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++CONFIG_SYN_COOKIES=y ++# CONFIG_INET_LRO is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_PLATRAM=y ++CONFIG_MTD_PHRAM=y ++CONFIG_MTD_BLOCK2MTD=y ++CONFIG_MTD_NAND=y ++CONFIG_MTD_NAND_PLATFORM=y ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_COUNT=2 ++CONFIG_BLK_DEV_RAM_SIZE=16384 ++CONFIG_SCSI=y ++# CONFIG_SCSI_PROC_FS is not set ++CONFIG_BLK_DEV_SD=y ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_NETDEVICES=y ++CONFIG_NET_ETHERNET=y ++CONFIG_SMSC911X=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_PIO=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_PCA_PLATFORM=y ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_SPI_SPIDEV=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++CONFIG_GPIO_PCF857X=y ++CONFIG_SENSORS_LM75=y ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_SOUND=y ++CONFIG_SND=y ++CONFIG_SND_MIXER_OSS=y ++CONFIG_SND_PCM_OSS=y ++# CONFIG_SND_DRIVERS is not set ++# CONFIG_SND_USB is not set ++CONFIG_SND_SOC=y ++CONFIG_SND_BF5XX_I2S=y ++CONFIG_SND_BF5XX_SPORT_NUM=1 ++CONFIG_USB=y ++CONFIG_USB_ANNOUNCE_NEW_DEVICES=y ++# CONFIG_USB_DEVICE_CLASS is not set ++CONFIG_USB_MON=y ++CONFIG_USB_STORAGE=y ++CONFIG_USB_SERIAL=y ++CONFIG_USB_SERIAL_FTDI_SIO=y ++CONFIG_USB_SERIAL_PL2303=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_DS1307=y ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++CONFIG_EXT2_FS_POSIX_ACL=y ++CONFIG_EXT2_FS_SECURITY=y ++# CONFIG_DNOTIFY is not set ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_FAT_DEFAULT_CODEPAGE=866 ++CONFIG_FAT_DEFAULT_IOCHARSET="cp1251" ++CONFIG_NTFS_FS=y ++CONFIG_CONFIGFS_FS=y ++CONFIG_JFFS2_FS=y ++CONFIG_JFFS2_COMPRESSION_OPTIONS=y ++# CONFIG_JFFS2_ZLIB is not set ++CONFIG_JFFS2_LZO=y ++# CONFIG_JFFS2_RTIME is not set ++CONFIG_JFFS2_CMODE_FAVOURLZO=y ++CONFIG_CRAMFS=y ++CONFIG_MINIX_FS=y ++CONFIG_NFS_FS=y ++CONFIG_NFS_V3=y ++CONFIG_ROOT_NFS=y ++CONFIG_NLS_DEFAULT="cp1251" ++CONFIG_NLS_CODEPAGE_866=y ++CONFIG_NLS_CODEPAGE_1251=y ++CONFIG_NLS_KOI8_R=y ++CONFIG_NLS_UTF8=y ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++# CONFIG_DEBUG_BUGVERBOSE is not set ++CONFIG_DEBUG_INFO=y ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set ++CONFIG_CPLB_INFO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig +new file mode 100644 +index 000000000000..89b75a6c3fab +--- /dev/null ++++ b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig +@@ -0,0 +1,112 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF561=y ++CONFIG_SMP=y ++CONFIG_IRQ_TIMER0=10 ++CONFIG_CLKIN_HZ=30000000 ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0xAAC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_AMDSTD=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_PHYSMAP=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++CONFIG_SMC91X=y ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT=m ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_USB_SUPPORT is not set ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig +new file mode 100644 +index 000000000000..67b3d2f419ba +--- /dev/null ++++ b/arch/blackfin/configs/BF561-EZKIT_defconfig +@@ -0,0 +1,114 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF561=y ++CONFIG_IRQ_TIMER0=10 ++CONFIG_CLKIN_HZ=30000000 ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_BFIN_EXTMEM_WRITETHROUGH=y ++CONFIG_BFIN_L2_DCACHEABLE=y ++CONFIG_BFIN_L2_WRITETHROUGH=y ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0xAAC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_AMDSTD=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_PHYSMAP=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++CONFIG_SMC91X=y ++# CONFIG_NET_VENDOR_STMICRO is not set ++# CONFIG_WLAN is not set ++CONFIG_INPUT=m ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_JTAG_COMM=m ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_USB_SUPPORT is not set ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set +diff --git a/arch/blackfin/configs/BF609-EZKIT_defconfig b/arch/blackfin/configs/BF609-EZKIT_defconfig +new file mode 100644 +index 000000000000..8cc75d4218fb +--- /dev/null ++++ b/arch/blackfin/configs/BF609-EZKIT_defconfig +@@ -0,0 +1,154 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_EXPERT=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF609=y ++CONFIG_PINT1_ASSIGN=0x01010000 ++CONFIG_PINT2_ASSIGN=0x07000101 ++CONFIG_PINT3_ASSIGN=0x02020303 ++CONFIG_IP_CHECKSUM_L1=y ++CONFIG_SYSCALL_TAB_L1=y ++CONFIG_CPLB_SWITCH_TAB_L1=y ++# CONFIG_APP_STACK_L1 is not set ++# CONFIG_BFIN_INS_LOWOVERHEAD is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_PM_BFIN_WAKE_PE12=y ++CONFIG_PM_BFIN_WAKE_PE12_POL=1 ++CONFIG_CPU_FREQ=y ++CONFIG_CPU_FREQ_GOV_POWERSAVE=y ++CONFIG_CPU_FREQ_GOV_ONDEMAND=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++CONFIG_IP_PNP_DHCP=y ++CONFIG_IP_PNP_BOOTP=y ++CONFIG_IP_PNP_RARP=y ++# CONFIG_IPV6 is not set ++CONFIG_NETFILTER=y ++CONFIG_CAN=y ++CONFIG_CAN_BFIN=y ++CONFIG_IRDA=y ++CONFIG_IRTTY_SIR=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++CONFIG_FW_LOADER=m ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_INTELEXT=y ++CONFIG_MTD_CFI_STAA=y ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_PHYSMAP=y ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_SPI_NOR=y ++CONFIG_MTD_UBI=m ++CONFIG_SCSI=y ++CONFIG_BLK_DEV_SD=y ++CONFIG_NETDEVICES=y ++# CONFIG_NET_VENDOR_BROADCOM is not set ++# CONFIG_NET_VENDOR_CHELSIO is not set ++# CONFIG_NET_VENDOR_INTEL is not set ++# CONFIG_NET_VENDOR_MARVELL is not set ++# CONFIG_NET_VENDOR_MICREL is not set ++# CONFIG_NET_VENDOR_MICROCHIP is not set ++# CONFIG_NET_VENDOR_NATSEMI is not set ++# CONFIG_NET_VENDOR_SEEQ is not set ++# CONFIG_NET_VENDOR_SMSC is not set ++CONFIG_STMMAC_ETH=y ++CONFIG_STMMAC_IEEE1588=y ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=y ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++CONFIG_INPUT_BFIN_ROTARY=y ++# CONFIG_SERIO is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_BFIN_SIMPLE_TIMER=m ++# CONFIG_BFIN_CRC is not set ++CONFIG_BFIN_LINKPORT=y ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_ADI_V3=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++CONFIG_PINCTRL_MCP23S08=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_SOUND=m ++CONFIG_SND=m ++CONFIG_SND_MIXER_OSS=m ++CONFIG_SND_PCM_OSS=m ++# CONFIG_SND_DRIVERS is not set ++# CONFIG_SND_SPI is not set ++# CONFIG_SND_USB is not set ++CONFIG_SND_SOC=m ++CONFIG_USB=y ++CONFIG_USB_MUSB_HDRC=y ++CONFIG_USB_MUSB_BLACKFIN=m ++CONFIG_USB_STORAGE=y ++CONFIG_USB_GADGET=y ++CONFIG_USB_GADGET_MUSB_HDRC=y ++CONFIG_USB_ZERO=y ++CONFIG_MMC=y ++CONFIG_SDH_BFIN=y ++# CONFIG_IOMMU_SUPPORT is not set ++CONFIG_EXT2_FS=y ++# CONFIG_DNOTIFY is not set ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_JFFS2_FS=m ++CONFIG_UBIFS_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NLS_CODEPAGE_437=y ++CONFIG_NLS_ISO8859_1=y ++CONFIG_DEBUG_FS=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++CONFIG_FRAME_POINTER=y ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_BFIN_PSEUDODBG_INSNS=y ++CONFIG_CRYPTO_HMAC=m ++CONFIG_CRYPTO_MD4=m ++CONFIG_CRYPTO_MD5=m ++CONFIG_CRYPTO_ARC4=m ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRYPTO_DEV_BFIN_CRC=m +diff --git a/arch/blackfin/configs/BlackStamp_defconfig b/arch/blackfin/configs/BlackStamp_defconfig +new file mode 100644 +index 000000000000..9faf0ec7007f +--- /dev/null ++++ b/arch/blackfin/configs/BlackStamp_defconfig +@@ -0,0 +1,108 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_SYSFS_DEPRECATED_V2=y ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++CONFIG_MODULE_FORCE_UNLOAD=y ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++CONFIG_PREEMPT=y ++CONFIG_BF532=y ++CONFIG_BF_REV_0_5=y ++CONFIG_BLACKSTAMP=y ++CONFIG_TIMER0=11 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_ROMKERNEL=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=y ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0xAAC2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_BINFMT_SHARED_FLAT=y ++CONFIG_PM=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_LRO is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=m ++CONFIG_MTD_CFI_AMDSTD=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_M25P80=y ++CONFIG_MTD_SPI_NOR=y ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_NBD=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_MISC_DEVICES=y ++CONFIG_EEPROM_AT25=y ++CONFIG_NETDEVICES=y ++CONFIG_NET_ETHERNET=y ++CONFIG_SMC91X=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_HW_RANDOM=y ++CONFIG_I2C=m ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_GPIO=m ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_SPI_SPIDEV=m ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_USB_SUPPORT is not set ++CONFIG_MMC=y ++CONFIG_MMC_SPI=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++# CONFIG_DNOTIFY is not set ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_JFFS2_FS=y ++CONFIG_NFS_FS=y ++CONFIG_NFS_V3=y ++CONFIG_NFS_V4=y ++CONFIG_SMB_FS=y ++CONFIG_CIFS=y ++CONFIG_NLS_CODEPAGE_437=y ++CONFIG_NLS_ASCII=y ++CONFIG_NLS_UTF8=y ++CONFIG_SYSCTL_SYSCALL_CHECK=y ++CONFIG_DEBUG_MMRS=y ++# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_CRC_CCITT=m +diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig +new file mode 100644 +index 000000000000..4a1ad4fd7bb2 +--- /dev/null ++++ b/arch/blackfin/configs/CM-BF527_defconfig +@@ -0,0 +1,129 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_KERNEL_LZMA=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_RD_GZIP is not set ++CONFIG_RD_LZMA=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++CONFIG_PREEMPT=y ++CONFIG_BF527=y ++CONFIG_BF_REV_0_1=y ++CONFIG_IRQ_TIMER0=12 ++CONFIG_BFIN527_BLUETECHNIX_CM=y ++CONFIG_IRQ_USB_INT0=11 ++CONFIG_IRQ_USB_INT1=11 ++CONFIG_IRQ_USB_INT2=11 ++CONFIG_IRQ_USB_DMA=11 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=y ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0xFFC0 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_INTELEXT=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_GPIO_ADDR=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_SCSI=y ++CONFIG_BLK_DEV_SD=y ++# CONFIG_SCSI_LOWLEVEL is not set ++CONFIG_NETDEVICES=y ++CONFIG_NET_ETHERNET=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_DEVKMEM is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_LEGACY_PTYS is not set ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_BLACKFIN_TWI=m ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++CONFIG_USB=m ++CONFIG_USB_ANNOUNCE_NEW_DEVICES=y ++# CONFIG_USB_DEVICE_CLASS is not set ++CONFIG_USB_OTG_BLACKLIST_HUB=y ++CONFIG_USB_MON=m ++CONFIG_USB_MUSB_HDRC=m ++CONFIG_USB_MUSB_PERIPHERAL=y ++CONFIG_USB_GADGET_MUSB_HDRC=y ++CONFIG_MUSB_PIO_ONLY=y ++CONFIG_USB_STORAGE=m ++CONFIG_USB_GADGET=m ++CONFIG_USB_ETH=m ++CONFIG_USB_MASS_STORAGE=m ++CONFIG_USB_G_SERIAL=m ++CONFIG_USB_G_PRINTER=m ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++# CONFIG_DNOTIFY is not set ++CONFIG_MSDOS_FS=y ++CONFIG_VFAT_FS=y ++CONFIG_JFFS2_FS=y ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_SMB_FS=m ++CONFIG_NLS_CODEPAGE_437=y ++CONFIG_NLS_ISO8859_1=y ++CONFIG_DEBUG_FS=y ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set ++CONFIG_EARLY_PRINTK=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRC_CCITT=m ++CONFIG_CRC_ITU_T=y ++CONFIG_CRC7=y +diff --git a/arch/blackfin/configs/PNAV-10_defconfig b/arch/blackfin/configs/PNAV-10_defconfig +new file mode 100644 +index 000000000000..9d787e28bbe8 +--- /dev/null ++++ b/arch/blackfin/configs/PNAV-10_defconfig +@@ -0,0 +1,111 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_LOG_BUF_SHIFT=14 ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF537=y ++CONFIG_IRQ_TIMER0=12 ++CONFIG_PNAV10=y ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++CONFIG_IP_CHECKSUM_L1=y ++CONFIG_SYSCALL_TAB_L1=y ++CONFIG_CPLB_SWITCH_TAB_L1=y ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=y ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_1=0x33B0 ++CONFIG_BANK_2=0x33B0 ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_UCLINUX=y ++CONFIG_MTD_NAND=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++CONFIG_NET_ETHERNET=y ++CONFIG_BFIN_MAC=y ++# CONFIG_BFIN_MAC_USE_L1 is not set ++CONFIG_BFIN_TX_DESC_NUM=100 ++CONFIG_BFIN_RX_DESC_NUM=100 ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=y ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_TOUCHSCREEN=y ++CONFIG_TOUCHSCREEN_AD7877=y ++CONFIG_INPUT_MISC=y ++CONFIG_INPUT_UINPUT=y ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++CONFIG_SERIAL_BFIN_UART1=y ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_HW_RANDOM=y ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_FB=y ++CONFIG_FIRMWARE_EDID=y ++CONFIG_BACKLIGHT_LCD_SUPPORT=y ++CONFIG_LCD_CLASS_DEVICE=y ++CONFIG_BACKLIGHT_CLASS_DEVICE=y ++CONFIG_SOUND=y ++CONFIG_SND=m ++# CONFIG_SND_SUPPORT_OLD_API is not set ++# CONFIG_SND_VERBOSE_PROCFS is not set ++CONFIG_SOUND_PRIME=y ++# CONFIG_HID is not set ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++# CONFIG_DNOTIFY is not set ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_SMB_FS=m ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_DEBUG_HUNT_FOR_ZERO is not set ++# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set ++# CONFIG_ACCESS_CHECK is not set ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRC_CCITT=m +diff --git a/arch/blackfin/configs/SRV1_defconfig b/arch/blackfin/configs/SRV1_defconfig +new file mode 100644 +index 000000000000..225df32dc9a8 +--- /dev/null ++++ b/arch/blackfin/configs/SRV1_defconfig +@@ -0,0 +1,88 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_SYSVIPC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++CONFIG_KALLSYMS_ALL=y ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_IOSCHED_DEADLINE is not set ++CONFIG_PREEMPT=y ++CONFIG_BF537=y ++CONFIG_IRQ_TIMER0=12 ++CONFIG_BOOT_LOAD=0x400000 ++CONFIG_CLKIN_HZ=22118400 ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_DMA_UNCACHED_2M=y ++CONFIG_C_CDPRIO=y ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_PM=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_IPV6 is not set ++CONFIG_IRDA=m ++CONFIG_IRLAN=m ++CONFIG_IRCOMM=m ++CONFIG_IRDA_CACHE_LAST_LSAP=y ++CONFIG_IRTTY_SIR=m ++# CONFIG_WIRELESS is not set ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_JEDECPROBE=m ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_UCLINUX=y ++CONFIG_MTD_NAND=m ++CONFIG_BLK_DEV_RAM=y ++CONFIG_MISC_DEVICES=y ++CONFIG_EEPROM_AT25=m ++CONFIG_NETDEVICES=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++CONFIG_INPUT_EVDEV=m ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++CONFIG_INPUT_UINPUT=y ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_HWMON=m ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_HID is not set ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++# CONFIG_DNOTIFY is not set ++CONFIG_JFFS2_FS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3=y ++CONFIG_SMB_FS=m ++CONFIG_DEBUG_KERNEL=y ++# CONFIG_DEBUG_BUGVERBOSE is not set ++CONFIG_DEBUG_INFO=y ++# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set ++CONFIG_CPLB_INFO=y +diff --git a/arch/blackfin/configs/TCM-BF518_defconfig b/arch/blackfin/configs/TCM-BF518_defconfig +new file mode 100644 +index 000000000000..425c24e43c34 +--- /dev/null ++++ b/arch/blackfin/configs/TCM-BF518_defconfig +@@ -0,0 +1,131 @@ ++CONFIG_EXPERIMENTAL=y ++CONFIG_KERNEL_LZMA=y ++CONFIG_SYSVIPC=y ++CONFIG_IKCONFIG=y ++CONFIG_IKCONFIG_PROC=y ++CONFIG_LOG_BUF_SHIFT=14 ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_RD_GZIP is not set ++CONFIG_RD_LZMA=y ++CONFIG_EXPERT=y ++# CONFIG_SYSCTL_SYSCALL is not set ++# CONFIG_ELF_CORE is not set ++# CONFIG_FUTEX is not set ++# CONFIG_SIGNALFD is not set ++# CONFIG_TIMERFD is not set ++# CONFIG_EVENTFD is not set ++# CONFIG_AIO is not set ++CONFIG_SLAB=y ++CONFIG_MMAP_ALLOW_UNINITIALIZED=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++# CONFIG_LBDAF is not set ++# CONFIG_BLK_DEV_BSG is not set ++# CONFIG_IOSCHED_DEADLINE is not set ++# CONFIG_IOSCHED_CFQ is not set ++CONFIG_PREEMPT=y ++CONFIG_BF518=y ++CONFIG_BF_REV_0_1=y ++CONFIG_BFIN518F_TCM=y ++CONFIG_IRQ_TIMER0=12 ++# CONFIG_CYCLES_CLOCKSOURCE is not set ++# CONFIG_SCHEDULE_L1 is not set ++# CONFIG_MEMSET_L1 is not set ++# CONFIG_MEMCPY_L1 is not set ++# CONFIG_SYS_BFIN_SPINLOCK_L1 is not set ++CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0 ++CONFIG_BFIN_GPTIMERS=m ++CONFIG_C_CDPRIO=y ++CONFIG_BANK_3=0x99B2 ++CONFIG_BINFMT_FLAT=y ++CONFIG_BINFMT_ZFLAT=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_INET=y ++CONFIG_IP_PNP=y ++# CONFIG_INET_XFRM_MODE_TRANSPORT is not set ++# CONFIG_INET_XFRM_MODE_TUNNEL is not set ++# CONFIG_INET_XFRM_MODE_BEET is not set ++# CONFIG_INET_LRO is not set ++# CONFIG_INET_DIAG is not set ++# CONFIG_IPV6 is not set ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++# CONFIG_FW_LOADER is not set ++CONFIG_MTD=y ++CONFIG_MTD_CMDLINE_PARTS=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_ADV_OPTIONS=y ++CONFIG_MTD_CFI_GEOMETRY=y ++# CONFIG_MTD_MAP_BANK_WIDTH_1 is not set ++# CONFIG_MTD_MAP_BANK_WIDTH_4 is not set ++# CONFIG_MTD_CFI_I2 is not set ++CONFIG_MTD_CFI_INTELEXT=y ++CONFIG_MTD_RAM=y ++CONFIG_MTD_ROM=m ++CONFIG_MTD_PHYSMAP=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_NETDEVICES=y ++CONFIG_NET_ETHERNET=y ++CONFIG_BFIN_MAC=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++# CONFIG_SERIO is not set ++# CONFIG_DEVKMEM is not set ++CONFIG_BFIN_JTAG_COMM=m ++CONFIG_SERIAL_BFIN=y ++CONFIG_SERIAL_BFIN_CONSOLE=y ++CONFIG_SERIAL_BFIN_UART0=y ++# CONFIG_LEGACY_PTYS is not set ++# CONFIG_HW_RANDOM is not set ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++CONFIG_I2C_BLACKFIN_TWI=y ++CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100 ++CONFIG_SPI=y ++CONFIG_SPI_BFIN5XX=y ++CONFIG_GPIOLIB=y ++CONFIG_GPIO_SYSFS=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_BFIN_WDT=y ++# CONFIG_HID_SUPPORT is not set ++# CONFIG_USB_SUPPORT is not set ++CONFIG_MMC=y ++CONFIG_MMC_DEBUG=y ++CONFIG_MMC_SPI=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_BFIN=y ++CONFIG_EXT2_FS=y ++# CONFIG_DNOTIFY is not set ++CONFIG_VFAT_FS=m ++# CONFIG_MISC_FILESYSTEMS is not set ++CONFIG_NFS_FS=y ++CONFIG_NFS_V3=y ++CONFIG_ROOT_NFS=y ++CONFIG_NLS_CODEPAGE_437=m ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_UTF8=m ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_SHIRQ=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_INFO=y ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++# CONFIG_FTRACE is not set ++CONFIG_DEBUG_MMRS=y ++CONFIG_DEBUG_HWERR=y ++CONFIG_EXACT_HWERR=y ++CONFIG_DEBUG_DOUBLEFAULT=y ++CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_ONE=y ++CONFIG_EARLY_PRINTK=y ++CONFIG_CPLB_INFO=y ++CONFIG_CRYPTO=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++CONFIG_CRC_CCITT=m +diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig +index 499f51498ecb..f7cb39b0662c 100644 +--- a/arch/mips/configs/fuloong2e_defconfig ++++ b/arch/mips/configs/fuloong2e_defconfig +@@ -2,7 +2,8 @@ CONFIG_MACH_LOONGSON64=y + CONFIG_64BIT=y + CONFIG_NO_HZ=y + CONFIG_HIGH_RES_TIMERS=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + CONFIG_LOCALVERSION="-fuloong2e" + # CONFIG_LOCALVERSION_AUTO is not set + CONFIG_SYSVIPC=y +diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig +index 55438fc9991e..db03ef4f737d 100644 +--- a/arch/mips/configs/gpr_defconfig ++++ b/arch/mips/configs/gpr_defconfig +@@ -1,7 +1,8 @@ + CONFIG_MIPS_ALCHEMY=y + CONFIG_MIPS_GPR=y + CONFIG_HIGH_RES_TIMERS=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + # CONFIG_LOCALVERSION_AUTO is not set + CONFIG_SYSVIPC=y + CONFIG_POSIX_MQUEUE=y +diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig +index 7ddfb4ef9479..93e439ad3fce 100644 +--- a/arch/mips/configs/ip22_defconfig ++++ b/arch/mips/configs/ip22_defconfig +@@ -4,7 +4,8 @@ CONFIG_CPU_R5000=y + CONFIG_NO_HZ=y + CONFIG_HIGH_RES_TIMERS=y + CONFIG_HZ_1000=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + CONFIG_SYSVIPC=y + CONFIG_IKCONFIG=y + CONFIG_IKCONFIG_PROC=y +diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig +index d0a4c2cfacf8..6f0600e99c25 100644 +--- a/arch/mips/configs/ip28_defconfig ++++ b/arch/mips/configs/ip28_defconfig +@@ -1,6 +1,7 @@ + CONFIG_SGI_IP28=y + CONFIG_ARC_CONSOLE=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + CONFIG_SYSVIPC=y + CONFIG_IKCONFIG=y + CONFIG_IKCONFIG_PROC=y +diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig +index 9ad1c94376c8..1d62ce7ff5dc 100644 +--- a/arch/mips/configs/jazz_defconfig ++++ b/arch/mips/configs/jazz_defconfig +@@ -1,6 +1,7 @@ + CONFIG_MACH_JAZZ=y + CONFIG_OLIVETTI_M700=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + CONFIG_SYSVIPC=y + CONFIG_POSIX_MQUEUE=y + CONFIG_BSD_PROCESS_ACCT=y +diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig +index c3d0d0a6e044..aa3426d5f7d7 100644 +--- a/arch/mips/configs/mtx1_defconfig ++++ b/arch/mips/configs/mtx1_defconfig +@@ -1,6 +1,7 @@ + CONFIG_MIPS_ALCHEMY=y + CONFIG_MIPS_MTX1=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + # CONFIG_LOCALVERSION_AUTO is not set + CONFIG_SYSVIPC=y + CONFIG_POSIX_MQUEUE=y +diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig +index c4477a4d40c1..95caf0af665f 100644 +--- a/arch/mips/configs/nlm_xlr_defconfig ++++ b/arch/mips/configs/nlm_xlr_defconfig +@@ -5,7 +5,7 @@ CONFIG_DEFAULT_MMAP_MIN_ADDR=65536 + CONFIG_SMP=y + CONFIG_NO_HZ=y + CONFIG_HIGH_RES_TIMERS=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_KEXEC=y + CONFIG_CROSS_COMPILE="" + # CONFIG_LOCALVERSION_AUTO is not set +diff --git a/arch/mips/configs/pic32mzda_defconfig b/arch/mips/configs/pic32mzda_defconfig +index 41190c2036e6..3728897ab2b2 100644 +--- a/arch/mips/configs/pic32mzda_defconfig ++++ b/arch/mips/configs/pic32mzda_defconfig +@@ -1,7 +1,7 @@ + CONFIG_MACH_PIC32=y + CONFIG_DTB_PIC32_MZDA_SK=y + CONFIG_HZ_100=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + # CONFIG_SECCOMP is not set + CONFIG_SYSVIPC=y + CONFIG_NO_HZ=y +diff --git a/arch/mips/configs/pistachio_defconfig b/arch/mips/configs/pistachio_defconfig +index b22a3cf149b6..cfffca3d37f4 100644 +--- a/arch/mips/configs/pistachio_defconfig ++++ b/arch/mips/configs/pistachio_defconfig +@@ -5,7 +5,7 @@ CONFIG_MIPS_CPS=y + CONFIG_DEFAULT_MMAP_MIN_ADDR=32768 + CONFIG_ZSMALLOC=y + CONFIG_NR_CPUS=4 +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + # CONFIG_LOCALVERSION_AUTO is not set + CONFIG_DEFAULT_HOSTNAME="localhost" + CONFIG_SYSVIPC=y +diff --git a/arch/mips/configs/pnx8335_stb225_defconfig b/arch/mips/configs/pnx8335_stb225_defconfig +index e73cdb08fc6e..dc62fa8d6065 100644 +--- a/arch/mips/configs/pnx8335_stb225_defconfig ++++ b/arch/mips/configs/pnx8335_stb225_defconfig +@@ -3,7 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y + CONFIG_NO_HZ=y + CONFIG_HIGH_RES_TIMERS=y + CONFIG_HZ_128=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + # CONFIG_SECCOMP is not set + # CONFIG_LOCALVERSION_AUTO is not set + # CONFIG_SWAP is not set +diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig +index 5f71aa598b06..767f1999ead0 100644 +--- a/arch/mips/configs/rm200_defconfig ++++ b/arch/mips/configs/rm200_defconfig +@@ -2,7 +2,8 @@ CONFIG_SNI_RM=y + CONFIG_CPU_LITTLE_ENDIAN=y + CONFIG_ARC_CONSOLE=y + CONFIG_HZ_1000=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y + CONFIG_SYSVIPC=y + CONFIG_POSIX_MQUEUE=y + CONFIG_BSD_PROCESS_ACCT=y +diff --git a/arch/parisc/configs/712_defconfig b/arch/parisc/configs/712_defconfig +index ccc109761f44..a6a5b0b7a9c9 100644 +--- a/arch/parisc/configs/712_defconfig ++++ b/arch/parisc/configs/712_defconfig +@@ -13,7 +13,7 @@ CONFIG_MODULES=y + CONFIG_MODULE_UNLOAD=y + CONFIG_MODULE_FORCE_UNLOAD=y + CONFIG_PA7100LC=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_GSC_LASI=y + # CONFIG_PDC_CHASSIS is not set + CONFIG_BINFMT_MISC=m +diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig +index 8d41a73bd71b..b8e0a6662ff9 100644 +--- a/arch/parisc/configs/c3000_defconfig ++++ b/arch/parisc/configs/c3000_defconfig +@@ -13,7 +13,7 @@ CONFIG_MODULES=y + CONFIG_MODULE_UNLOAD=y + CONFIG_MODULE_FORCE_UNLOAD=y + CONFIG_PA8X00=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + # CONFIG_GSC is not set + CONFIG_PCI=y + CONFIG_PCI_LBA=y +diff --git a/arch/parisc/configs/default_defconfig b/arch/parisc/configs/default_defconfig +index 52c9050a7c5c..8d86d2e989f4 100644 +--- a/arch/parisc/configs/default_defconfig ++++ b/arch/parisc/configs/default_defconfig +@@ -14,7 +14,7 @@ CONFIG_MODULE_UNLOAD=y + CONFIG_MODULE_FORCE_UNLOAD=y + # CONFIG_BLK_DEV_BSG is not set + CONFIG_PA7100LC=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_IOMMU_CCIO=y + CONFIG_GSC_LASI=y + CONFIG_GSC_WAX=y +diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig +new file mode 100644 +index 000000000000..04fee07ea6c5 +--- /dev/null ++++ b/arch/powerpc/configs/c2k_defconfig +@@ -0,0 +1,389 @@ ++CONFIG_SYSVIPC=y ++CONFIG_POSIX_MQUEUE=y ++CONFIG_AUDIT=y ++CONFIG_BSD_PROCESS_ACCT=y ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_PROFILING=y ++CONFIG_OPROFILE=m ++CONFIG_KPROBES=y ++CONFIG_MODULES=y ++CONFIG_MODULE_UNLOAD=y ++CONFIG_MODVERSIONS=y ++CONFIG_PARTITION_ADVANCED=y ++CONFIG_OSF_PARTITION=y ++CONFIG_MAC_PARTITION=y ++CONFIG_BSD_DISKLABEL=y ++CONFIG_MINIX_SUBPARTITION=y ++CONFIG_SOLARIS_X86_PARTITION=y ++CONFIG_UNIXWARE_DISKLABEL=y ++CONFIG_SGI_PARTITION=y ++CONFIG_SUN_PARTITION=y ++# CONFIG_PPC_CHRP is not set ++# CONFIG_PPC_PMAC is not set ++CONFIG_EMBEDDED6xx=y ++CONFIG_PPC_C2K=y ++CONFIG_CPU_FREQ=y ++CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y ++CONFIG_CPU_FREQ_GOV_PERFORMANCE=y ++CONFIG_CPU_FREQ_GOV_POWERSAVE=m ++CONFIG_CPU_FREQ_GOV_ONDEMAND=m ++CONFIG_GEN_RTC=y ++CONFIG_HIGHMEM=y ++CONFIG_PREEMPT=y ++CONFIG_BINFMT_MISC=y ++CONFIG_PM=y ++CONFIG_PCI_MSI=y ++CONFIG_HOTPLUG_PCI=y ++CONFIG_HOTPLUG_PCI_SHPC=m ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_XFRM_USER=y ++CONFIG_NET_KEY=m ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++CONFIG_IP_ADVANCED_ROUTER=y ++CONFIG_IP_MULTIPLE_TABLES=y ++CONFIG_IP_ROUTE_MULTIPATH=y ++CONFIG_IP_ROUTE_VERBOSE=y ++CONFIG_IP_PNP=y ++CONFIG_IP_PNP_DHCP=y ++CONFIG_NET_IPIP=m ++CONFIG_IP_MROUTE=y ++CONFIG_IP_PIMSM_V1=y ++CONFIG_IP_PIMSM_V2=y ++CONFIG_SYN_COOKIES=y ++CONFIG_INET_AH=m ++CONFIG_INET_ESP=m ++CONFIG_INET_IPCOMP=m ++CONFIG_INET6_AH=m ++CONFIG_INET6_ESP=m ++CONFIG_INET6_IPCOMP=m ++CONFIG_IPV6_TUNNEL=m ++CONFIG_NETFILTER=y ++# CONFIG_NETFILTER_XT_MATCH_SCTP is not set ++CONFIG_IP_NF_IPTABLES=m ++CONFIG_IP_NF_MATCH_ECN=m ++CONFIG_IP_NF_MATCH_TTL=m ++CONFIG_IP_NF_FILTER=m ++CONFIG_IP_NF_TARGET_REJECT=m ++CONFIG_IP_NF_MANGLE=m ++CONFIG_IP_NF_TARGET_ECN=m ++CONFIG_IP_NF_RAW=m ++CONFIG_IP_NF_ARPTABLES=m ++CONFIG_IP_NF_ARPFILTER=m ++CONFIG_IP_NF_ARP_MANGLE=m ++CONFIG_IP6_NF_IPTABLES=m ++CONFIG_IP6_NF_MATCH_EUI64=m ++CONFIG_IP6_NF_MATCH_FRAG=m ++CONFIG_IP6_NF_MATCH_OPTS=m ++CONFIG_IP6_NF_MATCH_HL=m ++CONFIG_IP6_NF_MATCH_IPV6HEADER=m ++CONFIG_IP6_NF_MATCH_RT=m ++CONFIG_IP6_NF_FILTER=m ++CONFIG_IP6_NF_MANGLE=m ++CONFIG_IP6_NF_RAW=m ++CONFIG_BRIDGE_NF_EBTABLES=m ++CONFIG_BRIDGE_EBT_BROUTE=m ++CONFIG_BRIDGE_EBT_T_FILTER=m ++CONFIG_BRIDGE_EBT_T_NAT=m ++CONFIG_BRIDGE_EBT_802_3=m ++CONFIG_BRIDGE_EBT_AMONG=m ++CONFIG_BRIDGE_EBT_ARP=m ++CONFIG_BRIDGE_EBT_IP=m ++CONFIG_BRIDGE_EBT_LIMIT=m ++CONFIG_BRIDGE_EBT_MARK=m ++CONFIG_BRIDGE_EBT_PKTTYPE=m ++CONFIG_BRIDGE_EBT_STP=m ++CONFIG_BRIDGE_EBT_VLAN=m ++CONFIG_BRIDGE_EBT_ARPREPLY=m ++CONFIG_BRIDGE_EBT_DNAT=m ++CONFIG_BRIDGE_EBT_MARK_T=m ++CONFIG_BRIDGE_EBT_REDIRECT=m ++CONFIG_BRIDGE_EBT_SNAT=m ++CONFIG_BRIDGE_EBT_LOG=m ++CONFIG_IP_SCTP=m ++CONFIG_ATM=m ++CONFIG_ATM_CLIP=m ++CONFIG_ATM_LANE=m ++CONFIG_ATM_BR2684=m ++CONFIG_BRIDGE=m ++CONFIG_VLAN_8021Q=m ++CONFIG_NET_SCHED=y ++CONFIG_NET_SCH_CBQ=m ++CONFIG_NET_SCH_HTB=m ++CONFIG_NET_SCH_HFSC=m ++CONFIG_NET_SCH_ATM=m ++CONFIG_NET_SCH_PRIO=m ++CONFIG_NET_SCH_RED=m ++CONFIG_NET_SCH_SFQ=m ++CONFIG_NET_SCH_TEQL=m ++CONFIG_NET_SCH_TBF=m ++CONFIG_NET_SCH_GRED=m ++CONFIG_NET_SCH_DSMARK=m ++CONFIG_NET_SCH_NETEM=m ++CONFIG_NET_CLS_TCINDEX=m ++CONFIG_NET_CLS_ROUTE4=m ++CONFIG_NET_CLS_FW=m ++CONFIG_NET_CLS_U32=m ++CONFIG_CLS_U32_PERF=y ++CONFIG_NET_CLS_RSVP=m ++CONFIG_NET_CLS_RSVP6=m ++CONFIG_NET_CLS_IND=y ++CONFIG_BT=m ++CONFIG_BT_RFCOMM=m ++CONFIG_BT_RFCOMM_TTY=y ++CONFIG_BT_BNEP=m ++CONFIG_BT_BNEP_MC_FILTER=y ++CONFIG_BT_BNEP_PROTO_FILTER=y ++CONFIG_BT_HIDP=m ++CONFIG_BT_HCIUART=m ++CONFIG_BT_HCIUART_H4=y ++CONFIG_BT_HCIUART_BCSP=y ++CONFIG_BT_HCIBCM203X=m ++CONFIG_BT_HCIBFUSB=m ++CONFIG_BT_HCIVHCI=m ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++CONFIG_MTD=y ++CONFIG_MTD_BLOCK=y ++CONFIG_MTD_CFI=y ++CONFIG_MTD_CFI_AMDSTD=y ++CONFIG_MTD_COMPLEX_MAPPINGS=y ++CONFIG_MTD_PHYSMAP_OF=y ++CONFIG_BLK_DEV_LOOP=m ++CONFIG_BLK_DEV_CRYPTOLOOP=m ++CONFIG_BLK_DEV_NBD=m ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_SIZE=16384 ++CONFIG_SCSI=m ++CONFIG_BLK_DEV_SD=m ++CONFIG_CHR_DEV_ST=m ++CONFIG_CHR_DEV_OSST=m ++CONFIG_BLK_DEV_SR=m ++CONFIG_BLK_DEV_SR_VENDOR=y ++CONFIG_CHR_DEV_SG=m ++CONFIG_SCSI_CONSTANTS=y ++CONFIG_SCSI_LOGGING=y ++CONFIG_SCSI_ISCSI_ATTRS=m ++CONFIG_BLK_DEV_3W_XXXX_RAID=m ++CONFIG_SCSI_3W_9XXX=m ++CONFIG_SCSI_ACARD=m ++CONFIG_SCSI_AACRAID=m ++CONFIG_SCSI_AIC7XXX=m ++CONFIG_AIC7XXX_CMDS_PER_DEVICE=4 ++CONFIG_AIC7XXX_RESET_DELAY_MS=15000 ++# CONFIG_AIC7XXX_DEBUG_ENABLE is not set ++# CONFIG_AIC7XXX_REG_PRETTY_PRINT is not set ++CONFIG_SCSI_AIC79XX=m ++CONFIG_AIC79XX_CMDS_PER_DEVICE=4 ++CONFIG_AIC79XX_RESET_DELAY_MS=15000 ++# CONFIG_AIC79XX_DEBUG_ENABLE is not set ++# CONFIG_AIC79XX_REG_PRETTY_PRINT is not set ++CONFIG_SCSI_ARCMSR=m ++CONFIG_MEGARAID_NEWGEN=y ++CONFIG_MEGARAID_MM=m ++CONFIG_MEGARAID_MAILBOX=m ++CONFIG_MEGARAID_SAS=m ++CONFIG_SCSI_GDTH=m ++CONFIG_SCSI_IPS=m ++CONFIG_SCSI_INITIO=m ++CONFIG_SCSI_SYM53C8XX_2=m ++CONFIG_SCSI_QLOGIC_1280=m ++CONFIG_NETDEVICES=y ++CONFIG_BONDING=m ++CONFIG_DUMMY=m ++CONFIG_NETCONSOLE=m ++CONFIG_TUN=m ++# CONFIG_ATM_DRIVERS is not set ++CONFIG_MV643XX_ETH=y ++CONFIG_VITESSE_PHY=y ++CONFIG_INPUT_EVDEV=y ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++CONFIG_INPUT_MISC=y ++CONFIG_INPUT_UINPUT=m ++# CONFIG_SERIO is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_SERIAL_NONSTANDARD=y ++CONFIG_SERIAL_MPSC=y ++CONFIG_SERIAL_MPSC_CONSOLE=y ++CONFIG_NVRAM=m ++CONFIG_RAW_DRIVER=y ++CONFIG_MAX_RAW_DEVS=8192 ++CONFIG_I2C=m ++CONFIG_I2C_CHARDEV=m ++CONFIG_I2C_MV64XXX=m ++CONFIG_HWMON=m ++CONFIG_SENSORS_ADM1021=m ++CONFIG_SENSORS_ADM1025=m ++CONFIG_SENSORS_ADM1026=m ++CONFIG_SENSORS_ADM1031=m ++CONFIG_SENSORS_DS1621=m ++CONFIG_SENSORS_GL518SM=m ++CONFIG_SENSORS_MAX1619=m ++CONFIG_SENSORS_LM75=m ++CONFIG_SENSORS_LM77=m ++CONFIG_SENSORS_LM78=m ++CONFIG_SENSORS_LM80=m ++CONFIG_SENSORS_LM83=m ++CONFIG_SENSORS_LM85=m ++CONFIG_SENSORS_LM87=m ++CONFIG_SENSORS_LM90=m ++CONFIG_SENSORS_PCF8591=m ++CONFIG_SENSORS_VIA686A=m ++CONFIG_SENSORS_W83781D=m ++CONFIG_SENSORS_W83L785TS=m ++CONFIG_WATCHDOG=y ++CONFIG_SOFT_WATCHDOG=m ++CONFIG_PCIPCWATCHDOG=m ++CONFIG_WDTPCI=m ++CONFIG_USBPCWATCHDOG=m ++# CONFIG_VGA_CONSOLE is not set ++CONFIG_USB=m ++CONFIG_USB_MON=m ++CONFIG_USB_EHCI_HCD=m ++CONFIG_USB_EHCI_ROOT_HUB_TT=y ++CONFIG_USB_OHCI_HCD=m ++CONFIG_USB_OHCI_HCD_PPC_OF_BE=y ++CONFIG_USB_UHCI_HCD=m ++CONFIG_USB_ACM=m ++CONFIG_USB_PRINTER=m ++CONFIG_USB_STORAGE=m ++CONFIG_USB_STORAGE_DATAFAB=m ++CONFIG_USB_STORAGE_FREECOM=m ++CONFIG_USB_STORAGE_ISD200=m ++CONFIG_USB_STORAGE_SDDR09=m ++CONFIG_USB_STORAGE_SDDR55=m ++CONFIG_USB_STORAGE_JUMPSHOT=m ++CONFIG_USB_MDC800=m ++CONFIG_USB_MICROTEK=m ++CONFIG_USB_SERIAL=m ++CONFIG_USB_SERIAL_GENERIC=y ++CONFIG_USB_SERIAL_BELKIN=m ++CONFIG_USB_SERIAL_WHITEHEAT=m ++CONFIG_USB_SERIAL_DIGI_ACCELEPORT=m ++CONFIG_USB_SERIAL_EMPEG=m ++CONFIG_USB_SERIAL_FTDI_SIO=m ++CONFIG_USB_SERIAL_VISOR=m ++CONFIG_USB_SERIAL_IPAQ=m ++CONFIG_USB_SERIAL_IR=m ++CONFIG_USB_SERIAL_EDGEPORT=m ++CONFIG_USB_SERIAL_EDGEPORT_TI=m ++CONFIG_USB_SERIAL_KEYSPAN_PDA=m ++CONFIG_USB_SERIAL_KEYSPAN=m ++CONFIG_USB_SERIAL_KLSI=m ++CONFIG_USB_SERIAL_KOBIL_SCT=m ++CONFIG_USB_SERIAL_MCT_U232=m ++CONFIG_USB_SERIAL_PL2303=m ++CONFIG_USB_SERIAL_SAFE=m ++CONFIG_USB_SERIAL_SAFE_PADDED=y ++CONFIG_USB_SERIAL_CYBERJACK=m ++CONFIG_USB_SERIAL_XIRCOM=m ++CONFIG_USB_SERIAL_OMNINET=m ++CONFIG_USB_EMI62=m ++CONFIG_USB_RIO500=m ++CONFIG_USB_LEGOTOWER=m ++CONFIG_USB_LCD=m ++CONFIG_USB_LED=m ++CONFIG_USB_TEST=m ++CONFIG_USB_ATM=m ++CONFIG_USB_SPEEDTOUCH=m ++CONFIG_INFINIBAND=m ++CONFIG_INFINIBAND_USER_MAD=m ++CONFIG_INFINIBAND_USER_ACCESS=m ++CONFIG_INFINIBAND_MTHCA=m ++CONFIG_INFINIBAND_IPOIB=m ++CONFIG_INFINIBAND_IPOIB_CM=y ++CONFIG_INFINIBAND_SRP=m ++CONFIG_DMADEVICES=y ++CONFIG_EXT4_FS=m ++CONFIG_EXT4_FS_POSIX_ACL=y ++CONFIG_EXT4_FS_SECURITY=y ++CONFIG_QUOTA=y ++CONFIG_QFMT_V2=y ++CONFIG_AUTOFS4_FS=m ++CONFIG_UDF_FS=m ++CONFIG_MSDOS_FS=m ++CONFIG_VFAT_FS=m ++CONFIG_FAT_DEFAULT_IOCHARSET="ascii" ++CONFIG_PROC_KCORE=y ++CONFIG_TMPFS=y ++CONFIG_HFS_FS=m ++CONFIG_HFSPLUS_FS=m ++CONFIG_JFFS2_FS=y ++CONFIG_CRAMFS=m ++CONFIG_VXFS_FS=m ++CONFIG_NFS_FS=y ++CONFIG_NFS_V3_ACL=y ++CONFIG_NFS_V4=y ++CONFIG_ROOT_NFS=y ++CONFIG_CIFS=m ++CONFIG_CIFS_XATTR=y ++CONFIG_CIFS_POSIX=y ++CONFIG_NLS=y ++CONFIG_NLS_DEFAULT="utf8" ++CONFIG_NLS_CODEPAGE_437=y ++CONFIG_NLS_CODEPAGE_737=m ++CONFIG_NLS_CODEPAGE_775=m ++CONFIG_NLS_CODEPAGE_850=m ++CONFIG_NLS_CODEPAGE_852=m ++CONFIG_NLS_CODEPAGE_855=m ++CONFIG_NLS_CODEPAGE_857=m ++CONFIG_NLS_CODEPAGE_860=m ++CONFIG_NLS_CODEPAGE_861=m ++CONFIG_NLS_CODEPAGE_862=m ++CONFIG_NLS_CODEPAGE_863=m ++CONFIG_NLS_CODEPAGE_864=m ++CONFIG_NLS_CODEPAGE_865=m ++CONFIG_NLS_CODEPAGE_866=m ++CONFIG_NLS_CODEPAGE_869=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_CODEPAGE_950=m ++CONFIG_NLS_CODEPAGE_932=m ++CONFIG_NLS_CODEPAGE_949=m ++CONFIG_NLS_CODEPAGE_874=m ++CONFIG_NLS_ISO8859_8=m ++CONFIG_NLS_CODEPAGE_1250=m ++CONFIG_NLS_CODEPAGE_1251=m ++CONFIG_NLS_ASCII=y ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_ISO8859_2=m ++CONFIG_NLS_ISO8859_3=m ++CONFIG_NLS_ISO8859_4=m ++CONFIG_NLS_ISO8859_5=m ++CONFIG_NLS_ISO8859_6=m ++CONFIG_NLS_ISO8859_7=m ++CONFIG_NLS_ISO8859_9=m ++CONFIG_NLS_ISO8859_13=m ++CONFIG_NLS_ISO8859_14=m ++CONFIG_NLS_ISO8859_15=m ++CONFIG_NLS_KOI8_R=m ++CONFIG_NLS_KOI8_U=m ++CONFIG_CRC_CCITT=m ++CONFIG_CRC_T10DIF=m ++CONFIG_DEBUG_INFO=y ++CONFIG_MAGIC_SYSRQ=y ++CONFIG_DEBUG_KERNEL=y ++CONFIG_DEBUG_STACK_USAGE=y ++CONFIG_DEBUG_HIGHMEM=y ++CONFIG_DEBUG_STACKOVERFLOW=y ++CONFIG_DETECT_HUNG_TASK=y ++CONFIG_DEBUG_SPINLOCK=y ++CONFIG_BOOTX_TEXT=y ++CONFIG_PPC_EARLY_DEBUG=y ++CONFIG_SECURITY=y ++CONFIG_SECURITY_NETWORK=y ++CONFIG_SECURITY_SELINUX=y ++CONFIG_SECURITY_SELINUX_BOOTPARAM=y ++CONFIG_SECURITY_SELINUX_DISABLE=y ++CONFIG_CRYPTO_HMAC=y ++CONFIG_CRYPTO_MICHAEL_MIC=m ++CONFIG_CRYPTO_SHA1=y ++CONFIG_CRYPTO_SHA512=m ++CONFIG_CRYPTO_WP512=m ++CONFIG_CRYPTO_BLOWFISH=m ++CONFIG_CRYPTO_CAST6=m ++CONFIG_CRYPTO_KHAZAD=m ++CONFIG_CRYPTO_SERPENT=m ++CONFIG_CRYPTO_TEA=m ++CONFIG_CRYPTO_TWOFISH=m +diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig +index 7ee736f20774..8663c0043a56 100644 +--- a/arch/powerpc/configs/ppc6xx_defconfig ++++ b/arch/powerpc/configs/ppc6xx_defconfig +@@ -74,7 +74,7 @@ CONFIG_QE_GPIO=y + CONFIG_MCU_MPC8349EMITX=y + CONFIG_HIGHMEM=y + CONFIG_HZ_1000=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_BINFMT_MISC=y + CONFIG_HIBERNATION=y + CONFIG_PM_DEBUG=y +diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c +index 9fcccb4490b9..7f2b6c226eed 100644 +--- a/arch/powerpc/platforms/cell/spufs/sched.c ++++ b/arch/powerpc/platforms/cell/spufs/sched.c +@@ -64,11 +64,6 @@ static struct task_struct *spusched_task; + static struct timer_list spusched_timer; + static struct timer_list spuloadavg_timer; + +-/* +- * Priority of a normal, non-rt, non-niced'd process (aka nice level 0). +- */ +-#define NORMAL_PRIO 120 +- + /* + * Frequency of the spu scheduler tick. By default we do one SPU scheduler + * tick for every 10 CPU scheduler ticks. +diff --git a/arch/score/configs/spct6600_defconfig b/arch/score/configs/spct6600_defconfig +new file mode 100644 +index 000000000000..46434ca1fa10 +--- /dev/null ++++ b/arch/score/configs/spct6600_defconfig +@@ -0,0 +1,84 @@ ++CONFIG_HZ_100=y ++CONFIG_PREEMPT=y ++CONFIG_EXPERIMENTAL=y ++# CONFIG_LOCALVERSION_AUTO is not set ++CONFIG_SYSVIPC=y ++CONFIG_POSIX_MQUEUE=y ++CONFIG_BSD_PROCESS_ACCT=y ++CONFIG_LOG_BUF_SHIFT=12 ++CONFIG_SYSFS_DEPRECATED_V2=y ++CONFIG_BLK_DEV_INITRD=y ++# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set ++CONFIG_EXPERT=y ++# CONFIG_KALLSYMS is not set ++# CONFIG_HOTPLUG is not set ++CONFIG_SLAB=y ++CONFIG_MODULES=y ++CONFIG_MODULE_FORCE_LOAD=y ++CONFIG_MODULE_UNLOAD=y ++CONFIG_MODULE_FORCE_UNLOAD=y ++# CONFIG_BLK_DEV_BSG is not set ++CONFIG_BINFMT_MISC=y ++CONFIG_NET=y ++CONFIG_UNIX=y ++CONFIG_NET_KEY=y ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++CONFIG_ARPD=y ++# CONFIG_INET_LRO is not set ++# CONFIG_IPV6 is not set ++# CONFIG_STANDALONE is not set ++# CONFIG_PREVENT_FIRMWARE_BUILD is not set ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_CRYPTOLOOP=y ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_COUNT=1 ++# CONFIG_MISC_DEVICES is not set ++CONFIG_NETDEVICES=y ++# CONFIG_NETDEV_1000 is not set ++# CONFIG_NETDEV_10000 is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++CONFIG_SERIAL_NONSTANDARD=y ++CONFIG_STALDRV=y ++# CONFIG_HW_RANDOM is not set ++CONFIG_RAW_DRIVER=y ++CONFIG_MAX_RAW_DEVS=8192 ++# CONFIG_HWMON is not set ++# CONFIG_VGA_CONSOLE is not set ++# CONFIG_HID_SUPPORT is not set ++# CONFIG_USB_SUPPORT is not set ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++CONFIG_EXT2_FS_POSIX_ACL=y ++CONFIG_EXT3_FS=y ++# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set ++CONFIG_EXT3_FS_POSIX_ACL=y ++CONFIG_AUTOFS_FS=y ++CONFIG_AUTOFS4_FS=y ++CONFIG_PROC_KCORE=y ++# CONFIG_PROC_PAGE_MONITOR is not set ++CONFIG_TMPFS=y ++CONFIG_TMPFS_POSIX_ACL=y ++CONFIG_NFS_FS=y ++CONFIG_NFS_V3=y ++CONFIG_NFS_V3_ACL=y ++CONFIG_NFS_V4=y ++CONFIG_NFSD=y ++CONFIG_NFSD_V3_ACL=y ++CONFIG_NFSD_V4=y ++# CONFIG_RCU_CPU_STALL_DETECTOR is not set ++CONFIG_SECURITY=y ++CONFIG_SECURITY_NETWORK=y ++CONFIG_CRYPTO_NULL=y ++CONFIG_CRYPTO_CRYPTD=y ++CONFIG_CRYPTO_SEQIV=y ++CONFIG_CRYPTO_MD4=y ++CONFIG_CRYPTO_MICHAEL_MIC=y ++# CONFIG_CRYPTO_ANSI_CPRNG is not set ++# CONFIG_CRYPTO_HW is not set ++CONFIG_CRC_CCITT=y ++CONFIG_CRC16=y ++CONFIG_LIBCRC32C=y +diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig +index 5a1097641247..eb5fbf554e7f 100644 +--- a/arch/sh/configs/se7712_defconfig ++++ b/arch/sh/configs/se7712_defconfig +@@ -23,7 +23,7 @@ CONFIG_FLATMEM_MANUAL=y + CONFIG_SH_SOLUTION_ENGINE=y + CONFIG_SH_PCLK_FREQ=66666666 + CONFIG_HEARTBEAT=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_CMDLINE_OVERWRITE=y + CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda1" + CONFIG_NET=y +diff --git a/arch/sh/configs/se7721_defconfig b/arch/sh/configs/se7721_defconfig +index 9c0ef13bee10..cbaa65c8bf9e 100644 +--- a/arch/sh/configs/se7721_defconfig ++++ b/arch/sh/configs/se7721_defconfig +@@ -23,7 +23,7 @@ CONFIG_FLATMEM_MANUAL=y + CONFIG_SH_7721_SOLUTION_ENGINE=y + CONFIG_SH_PCLK_FREQ=33333333 + CONFIG_HEARTBEAT=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_CMDLINE_OVERWRITE=y + CONFIG_CMDLINE="console=ttySC0,115200 root=/dev/sda2" + CONFIG_NET=y +diff --git a/arch/sh/configs/titan_defconfig b/arch/sh/configs/titan_defconfig +index ceb48e9b70f4..1a69eda6610c 100644 +--- a/arch/sh/configs/titan_defconfig ++++ b/arch/sh/configs/titan_defconfig +@@ -20,7 +20,7 @@ CONFIG_SH_TITAN=y + CONFIG_SH_PCLK_FREQ=30000000 + CONFIG_SH_DMA=y + CONFIG_SH_DMA_API=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_CMDLINE_OVERWRITE=y + CONFIG_CMDLINE="console=ttySC1,38400N81 root=/dev/nfs ip=:::::eth1:autoconf rw" + CONFIG_PCI=y +diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig +index 4d4e1cc6402f..04bea1d28ba7 100644 +--- a/arch/sparc/configs/sparc64_defconfig ++++ b/arch/sparc/configs/sparc64_defconfig +@@ -22,7 +22,7 @@ CONFIG_NO_HZ=y + CONFIG_HIGH_RES_TIMERS=y + CONFIG_NUMA=y + CONFIG_DEFAULT_MMAP_MIN_ADDR=8192 +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_SUN_LDOMS=y + CONFIG_PCI=y + CONFIG_PCI_MSI=y +diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig +new file mode 100644 +index 000000000000..939c63ba7e6e +--- /dev/null ++++ b/arch/tile/configs/tilegx_defconfig +@@ -0,0 +1,411 @@ ++CONFIG_TILEGX=y ++CONFIG_SYSVIPC=y ++CONFIG_POSIX_MQUEUE=y ++CONFIG_FHANDLE=y ++CONFIG_AUDIT=y ++CONFIG_NO_HZ=y ++CONFIG_BSD_PROCESS_ACCT=y ++CONFIG_BSD_PROCESS_ACCT_V3=y ++CONFIG_TASKSTATS=y ++CONFIG_TASK_DELAY_ACCT=y ++CONFIG_TASK_XACCT=y ++CONFIG_TASK_IO_ACCOUNTING=y ++CONFIG_LOG_BUF_SHIFT=19 ++CONFIG_CGROUPS=y ++CONFIG_CGROUP_DEBUG=y ++CONFIG_CGROUP_DEVICE=y ++CONFIG_CPUSETS=y ++CONFIG_CGROUP_CPUACCT=y ++CONFIG_CGROUP_SCHED=y ++CONFIG_RT_GROUP_SCHED=y ++CONFIG_BLK_CGROUP=y ++CONFIG_NAMESPACES=y ++CONFIG_RELAY=y ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_RD_XZ=y ++CONFIG_SYSCTL_SYSCALL=y ++CONFIG_EMBEDDED=y ++# CONFIG_COMPAT_BRK is not set ++CONFIG_PROFILING=y ++CONFIG_KPROBES=y ++CONFIG_MODULES=y ++CONFIG_MODULE_FORCE_LOAD=y ++CONFIG_MODULE_UNLOAD=y ++CONFIG_BLK_DEV_INTEGRITY=y ++CONFIG_PARTITION_ADVANCED=y ++CONFIG_OSF_PARTITION=y ++CONFIG_AMIGA_PARTITION=y ++CONFIG_MAC_PARTITION=y ++CONFIG_BSD_DISKLABEL=y ++CONFIG_MINIX_SUBPARTITION=y ++CONFIG_SOLARIS_X86_PARTITION=y ++CONFIG_UNIXWARE_DISKLABEL=y ++CONFIG_SGI_PARTITION=y ++CONFIG_SUN_PARTITION=y ++CONFIG_KARMA_PARTITION=y ++CONFIG_CFQ_GROUP_IOSCHED=y ++CONFIG_NR_CPUS=100 ++CONFIG_HZ_100=y ++# CONFIG_COMPACTION is not set ++CONFIG_PREEMPT=y ++CONFIG_TILE_PCI_IO=y ++CONFIG_PCI_DEBUG=y ++# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set ++CONFIG_BINFMT_MISC=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_XFRM_USER=y ++CONFIG_XFRM_SUB_POLICY=y ++CONFIG_XFRM_STATISTICS=y ++CONFIG_NET_KEY=m ++CONFIG_NET_KEY_MIGRATE=y ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++CONFIG_IP_ADVANCED_ROUTER=y ++CONFIG_IP_MULTIPLE_TABLES=y ++CONFIG_IP_ROUTE_MULTIPATH=y ++CONFIG_IP_ROUTE_VERBOSE=y ++CONFIG_NET_IPIP=m ++CONFIG_IP_MROUTE=y ++CONFIG_IP_PIMSM_V1=y ++CONFIG_IP_PIMSM_V2=y ++CONFIG_SYN_COOKIES=y ++CONFIG_INET_AH=m ++CONFIG_INET_ESP=m ++CONFIG_INET_IPCOMP=m ++CONFIG_INET_XFRM_MODE_TRANSPORT=m ++CONFIG_INET_XFRM_MODE_TUNNEL=m ++CONFIG_INET_XFRM_MODE_BEET=m ++CONFIG_INET_DIAG=m ++CONFIG_TCP_CONG_ADVANCED=y ++CONFIG_TCP_CONG_HSTCP=m ++CONFIG_TCP_CONG_HYBLA=m ++CONFIG_TCP_CONG_SCALABLE=m ++CONFIG_TCP_CONG_LP=m ++CONFIG_TCP_CONG_VENO=m ++CONFIG_TCP_CONG_YEAH=m ++CONFIG_TCP_CONG_ILLINOIS=m ++CONFIG_TCP_MD5SIG=y ++CONFIG_IPV6=y ++CONFIG_IPV6_ROUTER_PREF=y ++CONFIG_IPV6_ROUTE_INFO=y ++CONFIG_IPV6_OPTIMISTIC_DAD=y ++CONFIG_INET6_AH=m ++CONFIG_INET6_ESP=m ++CONFIG_INET6_IPCOMP=m ++CONFIG_IPV6_MIP6=m ++CONFIG_INET6_XFRM_MODE_TRANSPORT=m ++CONFIG_INET6_XFRM_MODE_TUNNEL=m ++CONFIG_INET6_XFRM_MODE_BEET=m ++CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m ++CONFIG_IPV6_SIT=m ++CONFIG_IPV6_TUNNEL=m ++CONFIG_IPV6_MULTIPLE_TABLES=y ++CONFIG_IPV6_MROUTE=y ++CONFIG_IPV6_PIMSM_V2=y ++CONFIG_NETLABEL=y ++CONFIG_RDS=m ++CONFIG_RDS_TCP=m ++CONFIG_BRIDGE=m ++CONFIG_VLAN_8021Q=m ++CONFIG_VLAN_8021Q_GVRP=y ++CONFIG_PHONET=m ++CONFIG_NET_SCHED=y ++CONFIG_NET_SCH_CBQ=m ++CONFIG_NET_SCH_HTB=m ++CONFIG_NET_SCH_HFSC=m ++CONFIG_NET_SCH_PRIO=m ++CONFIG_NET_SCH_MULTIQ=m ++CONFIG_NET_SCH_RED=m ++CONFIG_NET_SCH_SFQ=m ++CONFIG_NET_SCH_TEQL=m ++CONFIG_NET_SCH_TBF=m ++CONFIG_NET_SCH_GRED=m ++CONFIG_NET_SCH_DSMARK=m ++CONFIG_NET_SCH_NETEM=m ++CONFIG_NET_SCH_DRR=m ++CONFIG_NET_SCH_INGRESS=m ++CONFIG_NET_CLS_BASIC=m ++CONFIG_NET_CLS_TCINDEX=m ++CONFIG_NET_CLS_ROUTE4=m ++CONFIG_NET_CLS_FW=m ++CONFIG_NET_CLS_U32=m ++CONFIG_CLS_U32_PERF=y ++CONFIG_CLS_U32_MARK=y ++CONFIG_NET_CLS_RSVP=m ++CONFIG_NET_CLS_RSVP6=m ++CONFIG_NET_CLS_FLOW=m ++CONFIG_NET_CLS_CGROUP=y ++CONFIG_NET_EMATCH=y ++CONFIG_NET_EMATCH_CMP=m ++CONFIG_NET_EMATCH_NBYTE=m ++CONFIG_NET_EMATCH_U32=m ++CONFIG_NET_EMATCH_META=m ++CONFIG_NET_EMATCH_TEXT=m ++CONFIG_NET_CLS_ACT=y ++CONFIG_NET_ACT_POLICE=m ++CONFIG_NET_ACT_GACT=m ++CONFIG_GACT_PROB=y ++CONFIG_NET_ACT_MIRRED=m ++CONFIG_NET_ACT_NAT=m ++CONFIG_NET_ACT_PEDIT=m ++CONFIG_NET_ACT_SIMP=m ++CONFIG_NET_ACT_SKBEDIT=m ++CONFIG_NET_CLS_IND=y ++CONFIG_DCB=y ++CONFIG_DNS_RESOLVER=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++CONFIG_DEVTMPFS=y ++CONFIG_DEVTMPFS_MOUNT=y ++CONFIG_CONNECTOR=y ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_CRYPTOLOOP=m ++CONFIG_BLK_DEV_SX8=m ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_SIZE=16384 ++CONFIG_ATA_OVER_ETH=m ++CONFIG_RAID_ATTRS=m ++CONFIG_BLK_DEV_SD=y ++CONFIG_SCSI_CONSTANTS=y ++CONFIG_SCSI_LOGGING=y ++CONFIG_SCSI_SAS_ATA=y ++CONFIG_ISCSI_TCP=m ++CONFIG_SCSI_MVSAS=y ++# CONFIG_SCSI_MVSAS_DEBUG is not set ++CONFIG_SCSI_MVSAS_TASKLET=y ++CONFIG_ATA=y ++CONFIG_SATA_AHCI=y ++CONFIG_SATA_SIL24=y ++# CONFIG_ATA_SFF is not set ++CONFIG_MD=y ++CONFIG_BLK_DEV_MD=y ++CONFIG_MD_LINEAR=m ++CONFIG_MD_RAID0=m ++CONFIG_MD_RAID1=m ++CONFIG_MD_RAID10=m ++CONFIG_MD_RAID456=m ++CONFIG_MD_FAULTY=m ++CONFIG_BLK_DEV_DM=m ++CONFIG_DM_DEBUG=y ++CONFIG_DM_CRYPT=m ++CONFIG_DM_SNAPSHOT=m ++CONFIG_DM_MIRROR=m ++CONFIG_DM_LOG_USERSPACE=m ++CONFIG_DM_ZERO=m ++CONFIG_DM_MULTIPATH=m ++CONFIG_DM_MULTIPATH_QL=m ++CONFIG_DM_MULTIPATH_ST=m ++CONFIG_DM_DELAY=m ++CONFIG_DM_UEVENT=y ++CONFIG_TARGET_CORE=m ++CONFIG_TCM_IBLOCK=m ++CONFIG_TCM_FILEIO=m ++CONFIG_TCM_PSCSI=m ++CONFIG_LOOPBACK_TARGET=m ++CONFIG_ISCSI_TARGET=m ++CONFIG_FUSION=y ++CONFIG_FUSION_SAS=y ++CONFIG_NETDEVICES=y ++CONFIG_BONDING=m ++CONFIG_DUMMY=m ++CONFIG_IFB=m ++CONFIG_MACVLAN=m ++CONFIG_MACVTAP=m ++CONFIG_NETCONSOLE=m ++CONFIG_NETCONSOLE_DYNAMIC=y ++CONFIG_TUN=y ++CONFIG_VETH=m ++CONFIG_NET_DSA_MV88E6060=y ++CONFIG_NET_DSA_MV88E6XXX=y ++CONFIG_SKY2=y ++CONFIG_PTP_1588_CLOCK_TILEGX=y ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_SERIAL_TILEGX=y ++CONFIG_HW_RANDOM=y ++CONFIG_HW_RANDOM_TIMERIOMEM=m ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_WATCHDOG_NOWAYOUT=y ++# CONFIG_VGA_ARB is not set ++CONFIG_DRM=m ++CONFIG_DRM_TDFX=m ++CONFIG_DRM_R128=m ++CONFIG_DRM_MGA=m ++CONFIG_DRM_VIA=m ++CONFIG_DRM_SAVAGE=m ++CONFIG_USB=y ++CONFIG_USB_EHCI_HCD=y ++CONFIG_USB_OHCI_HCD=y ++CONFIG_USB_STORAGE=y ++CONFIG_EDAC=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_TILE=y ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++CONFIG_EXT2_FS_POSIX_ACL=y ++CONFIG_EXT2_FS_SECURITY=y ++CONFIG_EXT2_FS_XIP=y ++CONFIG_EXT3_FS=y ++CONFIG_EXT3_FS_POSIX_ACL=y ++CONFIG_EXT3_FS_SECURITY=y ++CONFIG_EXT4_FS=y ++CONFIG_EXT4_FS_POSIX_ACL=y ++CONFIG_EXT4_FS_SECURITY=y ++CONFIG_XFS_FS=y ++CONFIG_XFS_QUOTA=y ++CONFIG_XFS_POSIX_ACL=y ++CONFIG_GFS2_FS=m ++CONFIG_GFS2_FS_LOCKING_DLM=y ++CONFIG_BTRFS_FS=m ++CONFIG_BTRFS_FS_POSIX_ACL=y ++CONFIG_QUOTA=y ++CONFIG_QUOTA_NETLINK_INTERFACE=y ++# CONFIG_PRINT_QUOTA_WARNING is not set ++CONFIG_QFMT_V2=y ++CONFIG_AUTOFS4_FS=m ++CONFIG_FUSE_FS=y ++CONFIG_CUSE=m ++CONFIG_FSCACHE=m ++CONFIG_FSCACHE_STATS=y ++CONFIG_CACHEFILES=m ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_ZISOFS=y ++CONFIG_UDF_FS=m ++CONFIG_MSDOS_FS=m ++CONFIG_VFAT_FS=m ++CONFIG_FAT_DEFAULT_IOCHARSET="ascii" ++CONFIG_PROC_KCORE=y ++CONFIG_TMPFS=y ++CONFIG_TMPFS_POSIX_ACL=y ++CONFIG_HUGETLBFS=y ++CONFIG_ECRYPT_FS=m ++CONFIG_CRAMFS=m ++CONFIG_SQUASHFS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3_ACL=y ++CONFIG_NFS_V4=m ++CONFIG_NFS_V4_1=y ++CONFIG_NFS_FSCACHE=y ++CONFIG_NFSD=m ++CONFIG_NFSD_V3_ACL=y ++CONFIG_NFSD_V4=y ++CONFIG_CIFS=m ++CONFIG_CIFS_STATS=y ++CONFIG_CIFS_WEAK_PW_HASH=y ++CONFIG_CIFS_UPCALL=y ++CONFIG_CIFS_XATTR=y ++CONFIG_CIFS_POSIX=y ++CONFIG_CIFS_DFS_UPCALL=y ++CONFIG_CIFS_FSCACHE=y ++CONFIG_NLS_DEFAULT="utf8" ++CONFIG_NLS_CODEPAGE_437=y ++CONFIG_NLS_CODEPAGE_737=m ++CONFIG_NLS_CODEPAGE_775=m ++CONFIG_NLS_CODEPAGE_850=m ++CONFIG_NLS_CODEPAGE_852=m ++CONFIG_NLS_CODEPAGE_855=m ++CONFIG_NLS_CODEPAGE_857=m ++CONFIG_NLS_CODEPAGE_860=m ++CONFIG_NLS_CODEPAGE_861=m ++CONFIG_NLS_CODEPAGE_862=m ++CONFIG_NLS_CODEPAGE_863=m ++CONFIG_NLS_CODEPAGE_864=m ++CONFIG_NLS_CODEPAGE_865=m ++CONFIG_NLS_CODEPAGE_866=m ++CONFIG_NLS_CODEPAGE_869=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_CODEPAGE_950=m ++CONFIG_NLS_CODEPAGE_932=m ++CONFIG_NLS_CODEPAGE_949=m ++CONFIG_NLS_CODEPAGE_874=m ++CONFIG_NLS_ISO8859_8=m ++CONFIG_NLS_CODEPAGE_1250=m ++CONFIG_NLS_CODEPAGE_1251=m ++CONFIG_NLS_ASCII=y ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_ISO8859_2=m ++CONFIG_NLS_ISO8859_3=m ++CONFIG_NLS_ISO8859_4=m ++CONFIG_NLS_ISO8859_5=m ++CONFIG_NLS_ISO8859_6=m ++CONFIG_NLS_ISO8859_7=m ++CONFIG_NLS_ISO8859_9=m ++CONFIG_NLS_ISO8859_13=m ++CONFIG_NLS_ISO8859_14=m ++CONFIG_NLS_ISO8859_15=m ++CONFIG_NLS_KOI8_R=m ++CONFIG_NLS_KOI8_U=m ++CONFIG_NLS_UTF8=m ++CONFIG_DLM=m ++CONFIG_DLM_DEBUG=y ++CONFIG_DYNAMIC_DEBUG=y ++CONFIG_DEBUG_INFO=y ++CONFIG_DEBUG_INFO_REDUCED=y ++# CONFIG_ENABLE_WARN_DEPRECATED is not set ++CONFIG_STRIP_ASM_SYMS=y ++CONFIG_DEBUG_FS=y ++CONFIG_HEADERS_CHECK=y ++# CONFIG_FRAME_POINTER is not set ++CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y ++CONFIG_DEBUG_VM=y ++CONFIG_DEBUG_MEMORY_INIT=y ++CONFIG_DEBUG_STACKOVERFLOW=y ++CONFIG_LOCKUP_DETECTOR=y ++CONFIG_SCHEDSTATS=y ++CONFIG_TIMER_STATS=y ++CONFIG_DEBUG_LIST=y ++CONFIG_DEBUG_CREDENTIALS=y ++CONFIG_RCU_CPU_STALL_TIMEOUT=60 ++CONFIG_ASYNC_RAID6_TEST=m ++CONFIG_KGDB=y ++CONFIG_SECURITY=y ++CONFIG_SECURITYFS=y ++CONFIG_SECURITY_NETWORK=y ++CONFIG_SECURITY_NETWORK_XFRM=y ++CONFIG_SECURITY_SELINUX=y ++CONFIG_SECURITY_SELINUX_BOOTPARAM=y ++CONFIG_SECURITY_SELINUX_DISABLE=y ++CONFIG_CRYPTO_PCRYPT=m ++CONFIG_CRYPTO_CRYPTD=m ++CONFIG_CRYPTO_TEST=m ++CONFIG_CRYPTO_CCM=m ++CONFIG_CRYPTO_GCM=m ++CONFIG_CRYPTO_CTS=m ++CONFIG_CRYPTO_LRW=m ++CONFIG_CRYPTO_PCBC=m ++CONFIG_CRYPTO_XTS=m ++CONFIG_CRYPTO_HMAC=y ++CONFIG_CRYPTO_XCBC=m ++CONFIG_CRYPTO_VMAC=m ++CONFIG_CRYPTO_MICHAEL_MIC=m ++CONFIG_CRYPTO_RMD128=m ++CONFIG_CRYPTO_RMD160=m ++CONFIG_CRYPTO_RMD256=m ++CONFIG_CRYPTO_RMD320=m ++CONFIG_CRYPTO_SHA1=y ++CONFIG_CRYPTO_SHA512=m ++CONFIG_CRYPTO_TGR192=m ++CONFIG_CRYPTO_WP512=m ++CONFIG_CRYPTO_ANUBIS=m ++CONFIG_CRYPTO_BLOWFISH=m ++CONFIG_CRYPTO_CAMELLIA=m ++CONFIG_CRYPTO_CAST5=m ++CONFIG_CRYPTO_CAST6=m ++CONFIG_CRYPTO_FCRYPT=m ++CONFIG_CRYPTO_KHAZAD=m ++CONFIG_CRYPTO_SEED=m ++CONFIG_CRYPTO_SERPENT=m ++CONFIG_CRYPTO_TEA=m ++CONFIG_CRYPTO_TWOFISH=m ++CONFIG_CRYPTO_LZO=m +diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig +new file mode 100644 +index 000000000000..e8c4003cbd81 +--- /dev/null ++++ b/arch/tile/configs/tilepro_defconfig +@@ -0,0 +1,524 @@ ++CONFIG_SYSVIPC=y ++CONFIG_POSIX_MQUEUE=y ++CONFIG_AUDIT=y ++CONFIG_NO_HZ=y ++CONFIG_HIGH_RES_TIMERS=y ++CONFIG_BSD_PROCESS_ACCT=y ++CONFIG_BSD_PROCESS_ACCT_V3=y ++CONFIG_TASKSTATS=y ++CONFIG_TASK_DELAY_ACCT=y ++CONFIG_TASK_XACCT=y ++CONFIG_TASK_IO_ACCOUNTING=y ++CONFIG_LOG_BUF_SHIFT=19 ++CONFIG_CGROUPS=y ++CONFIG_CGROUP_DEBUG=y ++CONFIG_CGROUP_DEVICE=y ++CONFIG_CPUSETS=y ++CONFIG_CGROUP_CPUACCT=y ++CONFIG_CGROUP_SCHED=y ++CONFIG_RT_GROUP_SCHED=y ++CONFIG_BLK_CGROUP=y ++CONFIG_NAMESPACES=y ++CONFIG_RELAY=y ++CONFIG_BLK_DEV_INITRD=y ++CONFIG_RD_XZ=y ++CONFIG_SYSCTL_SYSCALL=y ++CONFIG_EMBEDDED=y ++# CONFIG_COMPAT_BRK is not set ++CONFIG_PROFILING=y ++CONFIG_MODULES=y ++CONFIG_MODULE_FORCE_LOAD=y ++CONFIG_MODULE_UNLOAD=y ++CONFIG_BLK_DEV_INTEGRITY=y ++CONFIG_PARTITION_ADVANCED=y ++CONFIG_OSF_PARTITION=y ++CONFIG_AMIGA_PARTITION=y ++CONFIG_MAC_PARTITION=y ++CONFIG_BSD_DISKLABEL=y ++CONFIG_MINIX_SUBPARTITION=y ++CONFIG_SOLARIS_X86_PARTITION=y ++CONFIG_UNIXWARE_DISKLABEL=y ++CONFIG_SGI_PARTITION=y ++CONFIG_SUN_PARTITION=y ++CONFIG_KARMA_PARTITION=y ++CONFIG_CFQ_GROUP_IOSCHED=y ++CONFIG_HZ_100=y ++# CONFIG_COMPACTION is not set ++CONFIG_PREEMPT=y ++CONFIG_PCI_DEBUG=y ++# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set ++CONFIG_BINFMT_MISC=y ++CONFIG_NET=y ++CONFIG_PACKET=y ++CONFIG_UNIX=y ++CONFIG_XFRM_USER=y ++CONFIG_XFRM_SUB_POLICY=y ++CONFIG_XFRM_STATISTICS=y ++CONFIG_NET_KEY=m ++CONFIG_NET_KEY_MIGRATE=y ++CONFIG_INET=y ++CONFIG_IP_MULTICAST=y ++CONFIG_IP_ADVANCED_ROUTER=y ++CONFIG_IP_MULTIPLE_TABLES=y ++CONFIG_IP_ROUTE_MULTIPATH=y ++CONFIG_IP_ROUTE_VERBOSE=y ++CONFIG_NET_IPIP=m ++CONFIG_IP_MROUTE=y ++CONFIG_IP_PIMSM_V1=y ++CONFIG_IP_PIMSM_V2=y ++CONFIG_SYN_COOKIES=y ++CONFIG_INET_AH=m ++CONFIG_INET_ESP=m ++CONFIG_INET_IPCOMP=m ++CONFIG_INET_XFRM_MODE_TRANSPORT=m ++CONFIG_INET_XFRM_MODE_TUNNEL=m ++CONFIG_INET_XFRM_MODE_BEET=m ++CONFIG_INET_DIAG=m ++CONFIG_TCP_CONG_ADVANCED=y ++CONFIG_TCP_CONG_HSTCP=m ++CONFIG_TCP_CONG_HYBLA=m ++CONFIG_TCP_CONG_SCALABLE=m ++CONFIG_TCP_CONG_LP=m ++CONFIG_TCP_CONG_VENO=m ++CONFIG_TCP_CONG_YEAH=m ++CONFIG_TCP_CONG_ILLINOIS=m ++CONFIG_TCP_MD5SIG=y ++CONFIG_IPV6=y ++CONFIG_IPV6_ROUTER_PREF=y ++CONFIG_IPV6_ROUTE_INFO=y ++CONFIG_IPV6_OPTIMISTIC_DAD=y ++CONFIG_INET6_AH=m ++CONFIG_INET6_ESP=m ++CONFIG_INET6_IPCOMP=m ++CONFIG_IPV6_MIP6=m ++CONFIG_INET6_XFRM_MODE_TRANSPORT=m ++CONFIG_INET6_XFRM_MODE_TUNNEL=m ++CONFIG_INET6_XFRM_MODE_BEET=m ++CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m ++CONFIG_IPV6_SIT=m ++CONFIG_IPV6_TUNNEL=m ++CONFIG_IPV6_MULTIPLE_TABLES=y ++CONFIG_IPV6_MROUTE=y ++CONFIG_IPV6_PIMSM_V2=y ++CONFIG_NETLABEL=y ++CONFIG_NETFILTER=y ++CONFIG_NF_CONNTRACK=m ++CONFIG_NF_CONNTRACK_SECMARK=y ++CONFIG_NF_CONNTRACK_ZONES=y ++CONFIG_NF_CONNTRACK_EVENTS=y ++CONFIG_NF_CT_PROTO_DCCP=m ++CONFIG_NF_CT_PROTO_UDPLITE=m ++CONFIG_NF_CONNTRACK_AMANDA=m ++CONFIG_NF_CONNTRACK_FTP=m ++CONFIG_NF_CONNTRACK_H323=m ++CONFIG_NF_CONNTRACK_IRC=m ++CONFIG_NF_CONNTRACK_NETBIOS_NS=m ++CONFIG_NF_CONNTRACK_PPTP=m ++CONFIG_NF_CONNTRACK_SANE=m ++CONFIG_NF_CONNTRACK_SIP=m ++CONFIG_NF_CONNTRACK_TFTP=m ++CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m ++CONFIG_NETFILTER_XT_TARGET_CONNMARK=m ++CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m ++CONFIG_NETFILTER_XT_TARGET_DSCP=m ++CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m ++CONFIG_NETFILTER_XT_TARGET_MARK=m ++CONFIG_NETFILTER_XT_TARGET_NFLOG=m ++CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m ++CONFIG_NETFILTER_XT_TARGET_NOTRACK=m ++CONFIG_NETFILTER_XT_TARGET_TEE=m ++CONFIG_NETFILTER_XT_TARGET_TPROXY=m ++CONFIG_NETFILTER_XT_TARGET_TRACE=m ++CONFIG_NETFILTER_XT_TARGET_SECMARK=m ++CONFIG_NETFILTER_XT_TARGET_TCPMSS=m ++CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m ++CONFIG_NETFILTER_XT_MATCH_CLUSTER=m ++CONFIG_NETFILTER_XT_MATCH_COMMENT=m ++CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m ++CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m ++CONFIG_NETFILTER_XT_MATCH_CONNMARK=m ++CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m ++CONFIG_NETFILTER_XT_MATCH_DCCP=m ++CONFIG_NETFILTER_XT_MATCH_DSCP=m ++CONFIG_NETFILTER_XT_MATCH_ESP=m ++CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m ++CONFIG_NETFILTER_XT_MATCH_HELPER=m ++CONFIG_NETFILTER_XT_MATCH_IPRANGE=m ++CONFIG_NETFILTER_XT_MATCH_IPVS=m ++CONFIG_NETFILTER_XT_MATCH_LENGTH=m ++CONFIG_NETFILTER_XT_MATCH_LIMIT=m ++CONFIG_NETFILTER_XT_MATCH_MAC=m ++CONFIG_NETFILTER_XT_MATCH_MARK=m ++CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m ++CONFIG_NETFILTER_XT_MATCH_OSF=m ++CONFIG_NETFILTER_XT_MATCH_OWNER=m ++CONFIG_NETFILTER_XT_MATCH_POLICY=m ++CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m ++CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m ++CONFIG_NETFILTER_XT_MATCH_QUOTA=m ++CONFIG_NETFILTER_XT_MATCH_RATEEST=m ++CONFIG_NETFILTER_XT_MATCH_REALM=m ++CONFIG_NETFILTER_XT_MATCH_RECENT=m ++CONFIG_NETFILTER_XT_MATCH_SOCKET=m ++CONFIG_NETFILTER_XT_MATCH_STATE=m ++CONFIG_NETFILTER_XT_MATCH_STATISTIC=m ++CONFIG_NETFILTER_XT_MATCH_STRING=m ++CONFIG_NETFILTER_XT_MATCH_TCPMSS=m ++CONFIG_NETFILTER_XT_MATCH_TIME=m ++CONFIG_NETFILTER_XT_MATCH_U32=m ++CONFIG_IP_VS=m ++CONFIG_IP_VS_IPV6=y ++CONFIG_IP_VS_PROTO_TCP=y ++CONFIG_IP_VS_PROTO_UDP=y ++CONFIG_IP_VS_PROTO_ESP=y ++CONFIG_IP_VS_PROTO_AH=y ++CONFIG_IP_VS_PROTO_SCTP=y ++CONFIG_IP_VS_RR=m ++CONFIG_IP_VS_WRR=m ++CONFIG_IP_VS_LC=m ++CONFIG_IP_VS_WLC=m ++CONFIG_IP_VS_LBLC=m ++CONFIG_IP_VS_LBLCR=m ++CONFIG_IP_VS_SED=m ++CONFIG_IP_VS_NQ=m ++CONFIG_NF_CONNTRACK_IPV4=m ++# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set ++CONFIG_IP_NF_IPTABLES=y ++CONFIG_IP_NF_MATCH_AH=m ++CONFIG_IP_NF_MATCH_ECN=m ++CONFIG_IP_NF_MATCH_TTL=m ++CONFIG_IP_NF_FILTER=y ++CONFIG_IP_NF_TARGET_REJECT=y ++CONFIG_IP_NF_MANGLE=m ++CONFIG_IP_NF_TARGET_ECN=m ++CONFIG_IP_NF_TARGET_TTL=m ++CONFIG_IP_NF_RAW=m ++CONFIG_IP_NF_SECURITY=m ++CONFIG_IP_NF_ARPTABLES=m ++CONFIG_IP_NF_ARPFILTER=m ++CONFIG_IP_NF_ARP_MANGLE=m ++CONFIG_NF_CONNTRACK_IPV6=m ++CONFIG_IP6_NF_MATCH_AH=m ++CONFIG_IP6_NF_MATCH_EUI64=m ++CONFIG_IP6_NF_MATCH_FRAG=m ++CONFIG_IP6_NF_MATCH_OPTS=m ++CONFIG_IP6_NF_MATCH_HL=m ++CONFIG_IP6_NF_MATCH_IPV6HEADER=m ++CONFIG_IP6_NF_MATCH_MH=m ++CONFIG_IP6_NF_MATCH_RT=m ++CONFIG_IP6_NF_TARGET_HL=m ++CONFIG_IP6_NF_FILTER=m ++CONFIG_IP6_NF_TARGET_REJECT=m ++CONFIG_IP6_NF_MANGLE=m ++CONFIG_IP6_NF_RAW=m ++CONFIG_IP6_NF_SECURITY=m ++CONFIG_BRIDGE_NF_EBTABLES=m ++CONFIG_BRIDGE_EBT_BROUTE=m ++CONFIG_BRIDGE_EBT_T_FILTER=m ++CONFIG_BRIDGE_EBT_T_NAT=m ++CONFIG_BRIDGE_EBT_802_3=m ++CONFIG_BRIDGE_EBT_AMONG=m ++CONFIG_BRIDGE_EBT_ARP=m ++CONFIG_BRIDGE_EBT_IP=m ++CONFIG_BRIDGE_EBT_IP6=m ++CONFIG_BRIDGE_EBT_LIMIT=m ++CONFIG_BRIDGE_EBT_MARK=m ++CONFIG_BRIDGE_EBT_PKTTYPE=m ++CONFIG_BRIDGE_EBT_STP=m ++CONFIG_BRIDGE_EBT_VLAN=m ++CONFIG_BRIDGE_EBT_ARPREPLY=m ++CONFIG_BRIDGE_EBT_DNAT=m ++CONFIG_BRIDGE_EBT_MARK_T=m ++CONFIG_BRIDGE_EBT_REDIRECT=m ++CONFIG_BRIDGE_EBT_SNAT=m ++CONFIG_BRIDGE_EBT_LOG=m ++CONFIG_BRIDGE_EBT_ULOG=m ++CONFIG_BRIDGE_EBT_NFLOG=m ++CONFIG_RDS=m ++CONFIG_RDS_TCP=m ++CONFIG_BRIDGE=m ++CONFIG_VLAN_8021Q=m ++CONFIG_VLAN_8021Q_GVRP=y ++CONFIG_PHONET=m ++CONFIG_NET_SCHED=y ++CONFIG_NET_SCH_CBQ=m ++CONFIG_NET_SCH_HTB=m ++CONFIG_NET_SCH_HFSC=m ++CONFIG_NET_SCH_PRIO=m ++CONFIG_NET_SCH_MULTIQ=m ++CONFIG_NET_SCH_RED=m ++CONFIG_NET_SCH_SFQ=m ++CONFIG_NET_SCH_TEQL=m ++CONFIG_NET_SCH_TBF=m ++CONFIG_NET_SCH_GRED=m ++CONFIG_NET_SCH_DSMARK=m ++CONFIG_NET_SCH_NETEM=m ++CONFIG_NET_SCH_DRR=m ++CONFIG_NET_SCH_INGRESS=m ++CONFIG_NET_CLS_BASIC=m ++CONFIG_NET_CLS_TCINDEX=m ++CONFIG_NET_CLS_ROUTE4=m ++CONFIG_NET_CLS_FW=m ++CONFIG_NET_CLS_U32=m ++CONFIG_CLS_U32_PERF=y ++CONFIG_CLS_U32_MARK=y ++CONFIG_NET_CLS_RSVP=m ++CONFIG_NET_CLS_RSVP6=m ++CONFIG_NET_CLS_FLOW=m ++CONFIG_NET_CLS_CGROUP=y ++CONFIG_NET_EMATCH=y ++CONFIG_NET_EMATCH_CMP=m ++CONFIG_NET_EMATCH_NBYTE=m ++CONFIG_NET_EMATCH_U32=m ++CONFIG_NET_EMATCH_META=m ++CONFIG_NET_EMATCH_TEXT=m ++CONFIG_NET_CLS_ACT=y ++CONFIG_NET_ACT_POLICE=m ++CONFIG_NET_ACT_GACT=m ++CONFIG_GACT_PROB=y ++CONFIG_NET_ACT_MIRRED=m ++CONFIG_NET_ACT_IPT=m ++CONFIG_NET_ACT_NAT=m ++CONFIG_NET_ACT_PEDIT=m ++CONFIG_NET_ACT_SIMP=m ++CONFIG_NET_ACT_SKBEDIT=m ++CONFIG_NET_CLS_IND=y ++CONFIG_DCB=y ++CONFIG_DNS_RESOLVER=y ++# CONFIG_WIRELESS is not set ++CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" ++CONFIG_DEVTMPFS=y ++CONFIG_DEVTMPFS_MOUNT=y ++CONFIG_CONNECTOR=y ++CONFIG_BLK_DEV_LOOP=y ++CONFIG_BLK_DEV_CRYPTOLOOP=m ++CONFIG_BLK_DEV_SX8=m ++CONFIG_BLK_DEV_RAM=y ++CONFIG_BLK_DEV_RAM_SIZE=16384 ++CONFIG_ATA_OVER_ETH=m ++CONFIG_RAID_ATTRS=m ++CONFIG_BLK_DEV_SD=y ++CONFIG_SCSI_CONSTANTS=y ++CONFIG_SCSI_LOGGING=y ++CONFIG_ATA=y ++CONFIG_SATA_SIL24=y ++# CONFIG_ATA_SFF is not set ++CONFIG_MD=y ++CONFIG_BLK_DEV_MD=y ++CONFIG_MD_LINEAR=m ++CONFIG_MD_RAID0=m ++CONFIG_MD_RAID1=m ++CONFIG_MD_RAID10=m ++CONFIG_MD_RAID456=m ++CONFIG_MD_FAULTY=m ++CONFIG_BLK_DEV_DM=m ++CONFIG_DM_DEBUG=y ++CONFIG_DM_CRYPT=m ++CONFIG_DM_SNAPSHOT=m ++CONFIG_DM_MIRROR=m ++CONFIG_DM_LOG_USERSPACE=m ++CONFIG_DM_ZERO=m ++CONFIG_DM_MULTIPATH=m ++CONFIG_DM_MULTIPATH_QL=m ++CONFIG_DM_MULTIPATH_ST=m ++CONFIG_DM_DELAY=m ++CONFIG_DM_UEVENT=y ++CONFIG_FUSION=y ++CONFIG_FUSION_SAS=y ++CONFIG_NETDEVICES=y ++CONFIG_BONDING=m ++CONFIG_DUMMY=m ++CONFIG_IFB=m ++CONFIG_MACVLAN=m ++CONFIG_MACVTAP=m ++CONFIG_NETCONSOLE=m ++CONFIG_NETCONSOLE_DYNAMIC=y ++CONFIG_TUN=y ++CONFIG_VETH=m ++CONFIG_NET_DSA_MV88E6060=y ++CONFIG_NET_DSA_MV88E6XXX=y ++# CONFIG_NET_VENDOR_3COM is not set ++CONFIG_E1000E=y ++# CONFIG_WLAN is not set ++# CONFIG_INPUT_MOUSEDEV is not set ++# CONFIG_INPUT_KEYBOARD is not set ++# CONFIG_INPUT_MOUSE is not set ++# CONFIG_SERIO is not set ++# CONFIG_VT is not set ++# CONFIG_LEGACY_PTYS is not set ++CONFIG_HW_RANDOM=y ++CONFIG_HW_RANDOM_TIMERIOMEM=m ++CONFIG_I2C=y ++CONFIG_I2C_CHARDEV=y ++# CONFIG_HWMON is not set ++CONFIG_WATCHDOG=y ++CONFIG_WATCHDOG_NOWAYOUT=y ++# CONFIG_VGA_ARB is not set ++# CONFIG_USB_SUPPORT is not set ++CONFIG_EDAC=y ++CONFIG_RTC_CLASS=y ++CONFIG_RTC_DRV_TILE=y ++CONFIG_EXT2_FS=y ++CONFIG_EXT2_FS_XATTR=y ++CONFIG_EXT2_FS_POSIX_ACL=y ++CONFIG_EXT2_FS_SECURITY=y ++CONFIG_EXT2_FS_XIP=y ++CONFIG_EXT3_FS=y ++CONFIG_EXT3_FS_POSIX_ACL=y ++CONFIG_EXT3_FS_SECURITY=y ++CONFIG_EXT4_FS=y ++CONFIG_EXT4_FS_POSIX_ACL=y ++CONFIG_EXT4_FS_SECURITY=y ++CONFIG_XFS_FS=y ++CONFIG_XFS_QUOTA=y ++CONFIG_XFS_POSIX_ACL=y ++CONFIG_GFS2_FS=m ++CONFIG_GFS2_FS_LOCKING_DLM=y ++CONFIG_BTRFS_FS=m ++CONFIG_BTRFS_FS_POSIX_ACL=y ++CONFIG_QUOTA=y ++CONFIG_QUOTA_NETLINK_INTERFACE=y ++# CONFIG_PRINT_QUOTA_WARNING is not set ++CONFIG_QFMT_V2=y ++CONFIG_AUTOFS4_FS=m ++CONFIG_FUSE_FS=y ++CONFIG_CUSE=m ++CONFIG_FSCACHE=m ++CONFIG_FSCACHE_STATS=y ++CONFIG_CACHEFILES=m ++CONFIG_ISO9660_FS=m ++CONFIG_JOLIET=y ++CONFIG_ZISOFS=y ++CONFIG_UDF_FS=m ++CONFIG_MSDOS_FS=m ++CONFIG_VFAT_FS=m ++CONFIG_FAT_DEFAULT_IOCHARSET="ascii" ++CONFIG_PROC_KCORE=y ++CONFIG_TMPFS=y ++CONFIG_TMPFS_POSIX_ACL=y ++CONFIG_HUGETLBFS=y ++CONFIG_CONFIGFS_FS=m ++CONFIG_ECRYPT_FS=m ++CONFIG_CRAMFS=m ++CONFIG_SQUASHFS=m ++CONFIG_NFS_FS=m ++CONFIG_NFS_V3_ACL=y ++CONFIG_NFS_V4=m ++CONFIG_NFS_V4_1=y ++CONFIG_NFS_FSCACHE=y ++CONFIG_NFSD=m ++CONFIG_NFSD_V3_ACL=y ++CONFIG_NFSD_V4=y ++CONFIG_CIFS=m ++CONFIG_CIFS_STATS=y ++CONFIG_CIFS_WEAK_PW_HASH=y ++CONFIG_CIFS_UPCALL=y ++CONFIG_CIFS_XATTR=y ++CONFIG_CIFS_POSIX=y ++CONFIG_CIFS_DFS_UPCALL=y ++CONFIG_CIFS_FSCACHE=y ++CONFIG_NLS=y ++CONFIG_NLS_DEFAULT="utf8" ++CONFIG_NLS_CODEPAGE_437=y ++CONFIG_NLS_CODEPAGE_737=m ++CONFIG_NLS_CODEPAGE_775=m ++CONFIG_NLS_CODEPAGE_850=m ++CONFIG_NLS_CODEPAGE_852=m ++CONFIG_NLS_CODEPAGE_855=m ++CONFIG_NLS_CODEPAGE_857=m ++CONFIG_NLS_CODEPAGE_860=m ++CONFIG_NLS_CODEPAGE_861=m ++CONFIG_NLS_CODEPAGE_862=m ++CONFIG_NLS_CODEPAGE_863=m ++CONFIG_NLS_CODEPAGE_864=m ++CONFIG_NLS_CODEPAGE_865=m ++CONFIG_NLS_CODEPAGE_866=m ++CONFIG_NLS_CODEPAGE_869=m ++CONFIG_NLS_CODEPAGE_936=m ++CONFIG_NLS_CODEPAGE_950=m ++CONFIG_NLS_CODEPAGE_932=m ++CONFIG_NLS_CODEPAGE_949=m ++CONFIG_NLS_CODEPAGE_874=m ++CONFIG_NLS_ISO8859_8=m ++CONFIG_NLS_CODEPAGE_1250=m ++CONFIG_NLS_CODEPAGE_1251=m ++CONFIG_NLS_ASCII=y ++CONFIG_NLS_ISO8859_1=m ++CONFIG_NLS_ISO8859_2=m ++CONFIG_NLS_ISO8859_3=m ++CONFIG_NLS_ISO8859_4=m ++CONFIG_NLS_ISO8859_5=m ++CONFIG_NLS_ISO8859_6=m ++CONFIG_NLS_ISO8859_7=m ++CONFIG_NLS_ISO8859_9=m ++CONFIG_NLS_ISO8859_13=m ++CONFIG_NLS_ISO8859_14=m ++CONFIG_NLS_ISO8859_15=m ++CONFIG_NLS_KOI8_R=m ++CONFIG_NLS_KOI8_U=m ++CONFIG_NLS_UTF8=m ++CONFIG_DLM=m ++CONFIG_DLM_DEBUG=y ++CONFIG_DYNAMIC_DEBUG=y ++CONFIG_DEBUG_INFO=y ++CONFIG_DEBUG_INFO_REDUCED=y ++# CONFIG_ENABLE_WARN_DEPRECATED is not set ++CONFIG_FRAME_WARN=2048 ++CONFIG_STRIP_ASM_SYMS=y ++CONFIG_DEBUG_FS=y ++CONFIG_HEADERS_CHECK=y ++# CONFIG_FRAME_POINTER is not set ++CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y ++CONFIG_MAGIC_SYSRQ=y ++CONFIG_DEBUG_VM=y ++CONFIG_DEBUG_MEMORY_INIT=y ++CONFIG_DEBUG_STACKOVERFLOW=y ++CONFIG_LOCKUP_DETECTOR=y ++CONFIG_SCHEDSTATS=y ++CONFIG_TIMER_STATS=y ++CONFIG_DEBUG_LIST=y ++CONFIG_DEBUG_CREDENTIALS=y ++CONFIG_RCU_CPU_STALL_TIMEOUT=60 ++CONFIG_ASYNC_RAID6_TEST=m ++CONFIG_SECURITY=y ++CONFIG_SECURITYFS=y ++CONFIG_SECURITY_NETWORK=y ++CONFIG_SECURITY_NETWORK_XFRM=y ++CONFIG_SECURITY_SELINUX=y ++CONFIG_SECURITY_SELINUX_BOOTPARAM=y ++CONFIG_SECURITY_SELINUX_DISABLE=y ++CONFIG_CRYPTO_PCRYPT=m ++CONFIG_CRYPTO_CRYPTD=m ++CONFIG_CRYPTO_TEST=m ++CONFIG_CRYPTO_CCM=m ++CONFIG_CRYPTO_GCM=m ++CONFIG_CRYPTO_CTS=m ++CONFIG_CRYPTO_LRW=m ++CONFIG_CRYPTO_PCBC=m ++CONFIG_CRYPTO_XTS=m ++CONFIG_CRYPTO_HMAC=y ++CONFIG_CRYPTO_XCBC=m ++CONFIG_CRYPTO_VMAC=m ++CONFIG_CRYPTO_MICHAEL_MIC=m ++CONFIG_CRYPTO_RMD128=m ++CONFIG_CRYPTO_RMD160=m ++CONFIG_CRYPTO_RMD256=m ++CONFIG_CRYPTO_RMD320=m ++CONFIG_CRYPTO_SHA1=y ++CONFIG_CRYPTO_SHA512=m ++CONFIG_CRYPTO_TGR192=m ++CONFIG_CRYPTO_WP512=m ++CONFIG_CRYPTO_ANUBIS=m ++CONFIG_CRYPTO_BLOWFISH=m ++CONFIG_CRYPTO_CAMELLIA=m ++CONFIG_CRYPTO_CAST5=m ++CONFIG_CRYPTO_CAST6=m ++CONFIG_CRYPTO_FCRYPT=m ++CONFIG_CRYPTO_KHAZAD=m ++CONFIG_CRYPTO_SEED=m ++CONFIG_CRYPTO_SERPENT=m ++CONFIG_CRYPTO_TEA=m ++CONFIG_CRYPTO_TWOFISH=m ++CONFIG_CRYPTO_LZO=m ++CONFIG_CRC_CCITT=m ++CONFIG_CRC7=m +diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig +index 8689e794a43c..6f3519674169 100644 +--- a/arch/x86/Kconfig ++++ b/arch/x86/Kconfig +@@ -1002,6 +1002,22 @@ config NR_CPUS + config SCHED_SMT + def_bool y if SMP + ++config SMT_NICE ++ bool "SMT (Hyperthreading) aware nice priority and policy support" ++ depends on SCHED_MUQSS && SCHED_SMT ++ default y ++ ---help--- ++ Enabling Hyperthreading on Intel CPUs decreases the effectiveness ++ of the use of 'nice' levels and different scheduling policies ++ (e.g. realtime) due to sharing of CPU power between hyperthreads. ++ SMT nice support makes each logical CPU aware of what is running on ++ its hyperthread siblings, maintaining appropriate distribution of ++ CPU according to nice levels and scheduling policies at the expense ++ of slightly increased overhead. ++ ++ If unsure say Y here. ++ ++ + config SCHED_MC + def_bool y + prompt "Multi-core scheduler support" +@@ -1032,6 +1048,97 @@ config SCHED_MC_PRIO + + If unsure say Y here. + ++choice ++ prompt "CPU scheduler runqueue sharing" ++ default RQ_MC if SCHED_MUQSS ++ default RQ_NONE ++ ++config RQ_NONE ++ bool "No sharing" ++ help ++ This is the default behaviour where the CPU scheduler has one runqueue ++ per CPU, whether it is a physical or logical CPU (hyperthread). ++ ++ This can still be enabled runtime with the boot parameter ++ rqshare=none ++ ++ If unsure, say N. ++ ++config RQ_SMT ++ bool "SMT (hyperthread) siblings" ++ depends on SCHED_SMT && SCHED_MUQSS ++ ++ help ++ With this option enabled, the CPU scheduler will have one runqueue ++ shared by SMT (hyperthread) siblings. As these logical cores share ++ one physical core, sharing the runqueue resource can lead to decreased ++ overhead, lower latency and higher throughput. ++ ++ This can still be enabled runtime with the boot parameter ++ rqshare=smt ++ ++ If unsure, say N. ++ ++config RQ_MC ++ bool "Multicore siblings" ++ depends on SCHED_MC && SCHED_MUQSS ++ help ++ With this option enabled, the CPU scheduler will have one runqueue ++ shared by multicore siblings in addition to any SMT siblings. ++ As these physical cores share caches, sharing the runqueue resource ++ will lead to lower latency, but its effects on overhead and throughput ++ are less predictable. As a general rule, 6 or fewer cores will likely ++ benefit from this, while larger CPUs will only derive a latency ++ benefit. If your workloads are primarily single threaded, this will ++ possibly worsen throughput. If you are only concerned about latency ++ then enable this regardless of how many cores you have. ++ ++ This can still be enabled runtime with the boot parameter ++ rqshare=mc ++ ++ If unsure, say Y. ++ ++config RQ_SMP ++ bool "Symmetric Multi-Processing" ++ depends on SMP && SCHED_MUQSS ++ help ++ With this option enabled, the CPU scheduler will have one runqueue ++ shared by all physical CPUs unless they are on separate NUMA nodes. ++ As physical CPUs usually do not share resources, sharing the runqueue ++ will normally worsen throughput but improve latency. If you only ++ care about latency enable this. ++ ++ This can still be enabled runtime with the boot parameter ++ rqshare=smp ++ ++ If unsure, say N. ++ ++config RQ_ALL ++ bool "NUMA" ++ depends on SMP && SCHED_MUQSS ++ help ++ With this option enabled, the CPU scheduler will have one runqueue ++ regardless of the architecture configuration, including across NUMA ++ nodes. This can substantially decrease throughput in NUMA ++ configurations, but light NUMA designs will not be dramatically ++ affected. This option should only be chosen if latency is the prime ++ concern. ++ ++ This can still be enabled runtime with the boot parameter ++ rqshare=all ++ ++ If unsure, say N. ++endchoice ++ ++config SHARERQ ++ int ++ default 0 if RQ_NONE ++ default 1 if RQ_SMT ++ default 2 if RQ_MC ++ default 3 if RQ_SMP ++ default 4 if RQ_ALL ++ ++ + config UP_LATE_INIT + def_bool y + depends on !SMP && X86_LOCAL_APIC +@@ -1393,7 +1500,7 @@ config HIGHMEM64G + endchoice + + choice +- prompt "Memory split" if EXPERT ++ prompt "Memory split" + default VMSPLIT_3G + depends on X86_32 + ---help--- +@@ -1413,17 +1520,17 @@ choice + option alone! + + config VMSPLIT_3G +- bool "3G/1G user/kernel split" ++ bool "Default 896MB lowmem (3G/1G user/kernel split)" + config VMSPLIT_3G_OPT + depends on !X86_PAE +- bool "3G/1G user/kernel split (for full 1G low memory)" ++ bool "1GB lowmem (3G/1G user/kernel split)" + config VMSPLIT_2G +- bool "2G/2G user/kernel split" ++ bool "2GB lowmem (2G/2G user/kernel split)" + config VMSPLIT_2G_OPT + depends on !X86_PAE +- bool "2G/2G user/kernel split (for full 2G low memory)" ++ bool "2GB lowmem (2G/2G user/kernel split)" + config VMSPLIT_1G +- bool "1G/3G user/kernel split" ++ bool "3GB lowmem (1G/3G user/kernel split)" + endchoice + + config PAGE_OFFSET +diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig +index 6c3ab05c231d..264b756b11e6 100644 +--- a/arch/x86/configs/i386_defconfig ++++ b/arch/x86/configs/i386_defconfig +@@ -41,7 +41,7 @@ CONFIG_SMP=y + CONFIG_X86_GENERIC=y + CONFIG_HPET_TIMER=y + CONFIG_SCHED_SMT=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y + CONFIG_X86_MCE=y + CONFIG_X86_REBOOTFIXUPS=y +diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig +index ac9ae487cfeb..a229a3588dac 100644 +--- a/arch/x86/configs/x86_64_defconfig ++++ b/arch/x86/configs/x86_64_defconfig +@@ -40,7 +40,7 @@ CONFIG_SMP=y + CONFIG_CALGARY_IOMMU=y + CONFIG_NR_CPUS=64 + CONFIG_SCHED_SMT=y +-CONFIG_PREEMPT_VOLUNTARY=y ++CONFIG_PREEMPT=y + CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y + CONFIG_X86_MCE=y + CONFIG_MICROCODE=y +diff --git a/drivers/block/swim.c b/drivers/block/swim.c +index 3fa6fcc34790..278486c8266d 100644 +--- a/drivers/block/swim.c ++++ b/drivers/block/swim.c +@@ -332,7 +332,7 @@ static inline void swim_motor(struct swim __iomem *base, + if (swim_readbit(base, MOTOR_ON)) + break; + current->state = TASK_INTERRUPTIBLE; +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + } + } else if (action == OFF) { + swim_action(base, MOTOR_OFF); +@@ -351,7 +351,7 @@ static inline void swim_eject(struct swim __iomem *base) + if (!swim_readbit(base, DISK_IN)) + break; + current->state = TASK_INTERRUPTIBLE; +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + } + swim_select(base, RELAX); + } +@@ -375,7 +375,7 @@ static inline int swim_step(struct swim __iomem *base) + for (wait = 0; wait < HZ; wait++) { + + current->state = TASK_INTERRUPTIBLE; +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + + swim_select(base, RELAX); + if (!swim_readbit(base, STEP)) +diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c +index f036c8f98ea3..6492d10f78d4 100644 +--- a/drivers/bluetooth/hci_qca.c ++++ b/drivers/bluetooth/hci_qca.c +@@ -996,7 +996,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) + * then host can communicate with new baudrate to controller + */ + set_current_state(TASK_UNINTERRUPTIBLE); +- schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS)); ++ schedule_msec_hrtimeout((BAUDRATE_SETTLE_TIMEOUT_MS)); + set_current_state(TASK_RUNNING); + + if (qcadev->btsoc_type == QCA_WCN3990) +diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c +index a74ce885b541..c86b80418bc6 100644 +--- a/drivers/char/ipmi/ipmi_msghandler.c ++++ b/drivers/char/ipmi/ipmi_msghandler.c +@@ -3450,7 +3450,7 @@ static void cleanup_smi_msgs(struct ipmi_smi *intf) + /* Current message first, to preserve order */ + while (intf->curr_msg && !list_empty(&intf->waiting_rcv_msgs)) { + /* Wait for the message to clear out. */ +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + } + + /* No need for locks, the interface is down. */ +diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c +index ca9528c4f183..765b2506f919 100644 +--- a/drivers/char/ipmi/ipmi_ssif.c ++++ b/drivers/char/ipmi/ipmi_ssif.c +@@ -1211,7 +1211,7 @@ static void shutdown_ssif(void *send_info) + + /* make sure the driver is not looking for flags any more. */ + while (ssif_info->ssif_state != SSIF_NORMAL) +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + + ssif_info->stopping = true; + del_timer_sync(&ssif_info->retry_timer); +diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c +index 5918ea7499bb..5228e78df804 100644 +--- a/drivers/char/snsc.c ++++ b/drivers/char/snsc.c +@@ -198,7 +198,7 @@ scdrv_read(struct file *file, char __user *buf, size_t count, loff_t *f_pos) + add_wait_queue(&sd->sd_rq, &wait); + spin_unlock_irqrestore(&sd->sd_rlock, flags); + +- schedule_timeout(msecs_to_jiffies(SCDRV_TIMEOUT)); ++ schedule_msec_hrtimeout((SCDRV_TIMEOUT)); + + remove_wait_queue(&sd->sd_rq, &wait); + if (signal_pending(current)) { +@@ -294,7 +294,7 @@ scdrv_write(struct file *file, const char __user *buf, + add_wait_queue(&sd->sd_wq, &wait); + spin_unlock_irqrestore(&sd->sd_wlock, flags); + +- schedule_timeout(msecs_to_jiffies(SCDRV_TIMEOUT)); ++ schedule_msec_hrtimeout((SCDRV_TIMEOUT)); + + remove_wait_queue(&sd->sd_wq, &wait); + if (signal_pending(current)) { +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +index d0fd147ef75f..730ae4fe6b85 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +@@ -235,7 +235,7 @@ static int vmw_fifo_wait_noirq(struct vmw_private *dev_priv, + DRM_ERROR("SVGA device lockup.\n"); + break; + } +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + if (interruptible && signal_pending(current)) { + ret = -ERESTARTSYS; + break; +diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c +index c3ad4478266b..7e2a29d56459 100644 +--- a/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c ++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c +@@ -202,7 +202,7 @@ int vmw_fallback_wait(struct vmw_private *dev_priv, + break; + } + if (lazy) +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + else if ((++count & 0x0F) == 0) { + /** + * FIXME: Use schedule_hr_timeout here for +diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c +index 9545a346044f..c24cf1302ec7 100644 +--- a/drivers/hwmon/fam15h_power.c ++++ b/drivers/hwmon/fam15h_power.c +@@ -237,7 +237,7 @@ static ssize_t power1_average_show(struct device *dev, + prev_ptsc[cu] = data->cpu_sw_pwr_ptsc[cu]; + } + +- leftover = schedule_timeout_interruptible(msecs_to_jiffies(data->power_period)); ++ leftover = schedule_msec_hrtimeout_interruptible((data->power_period)); + if (leftover) + return 0; + +diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c +index 6bbb0b1e6032..f4b83648c405 100644 +--- a/drivers/iio/light/tsl2563.c ++++ b/drivers/iio/light/tsl2563.c +@@ -282,11 +282,7 @@ static void tsl2563_wait_adc(struct tsl2563_chip *chip) + default: + delay = 402; + } +- /* +- * TODO: Make sure that we wait at least required delay but why we +- * have to extend it one tick more? +- */ +- schedule_timeout_interruptible(msecs_to_jiffies(delay) + 2); ++ schedule_msec_hrtimeout_interruptible(delay + 1); + } + + static int tsl2563_adjust_gainlevel(struct tsl2563_chip *chip, u16 adc) +diff --git a/drivers/media/i2c/msp3400-driver.c b/drivers/media/i2c/msp3400-driver.c +index c63be01059b2..4872ae954389 100644 +--- a/drivers/media/i2c/msp3400-driver.c ++++ b/drivers/media/i2c/msp3400-driver.c +@@ -179,7 +179,7 @@ static int msp_read(struct i2c_client *client, int dev, int addr) + break; + dev_warn(&client->dev, "I/O error #%d (read 0x%02x/0x%02x)\n", err, + dev, addr); +- schedule_timeout_interruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_interruptible((10)); + } + if (err == 3) { + dev_warn(&client->dev, "resetting chip, sound will go off.\n"); +@@ -220,7 +220,7 @@ static int msp_write(struct i2c_client *client, int dev, int addr, int val) + break; + dev_warn(&client->dev, "I/O error #%d (write 0x%02x/0x%02x)\n", err, + dev, addr); +- schedule_timeout_interruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_interruptible((10)); + } + if (err == 3) { + dev_warn(&client->dev, "resetting chip, sound will go off.\n"); +diff --git a/drivers/media/pci/cx18/cx18-gpio.c b/drivers/media/pci/cx18/cx18-gpio.c +index 012859e6dc7b..206bd08265a5 100644 +--- a/drivers/media/pci/cx18/cx18-gpio.c ++++ b/drivers/media/pci/cx18/cx18-gpio.c +@@ -90,11 +90,11 @@ static void gpio_reset_seq(struct cx18 *cx, u32 active_lo, u32 active_hi, + + /* Assert */ + gpio_update(cx, mask, ~active_lo); +- schedule_timeout_uninterruptible(msecs_to_jiffies(assert_msecs)); ++ schedule_msec_hrtimeout_uninterruptible((assert_msecs)); + + /* Deassert */ + gpio_update(cx, mask, ~active_hi); +- schedule_timeout_uninterruptible(msecs_to_jiffies(recovery_msecs)); ++ schedule_msec_hrtimeout_uninterruptible((recovery_msecs)); + } + + /* +diff --git a/drivers/media/pci/ivtv/ivtv-gpio.c b/drivers/media/pci/ivtv/ivtv-gpio.c +index f752f3993687..23372af61ebf 100644 +--- a/drivers/media/pci/ivtv/ivtv-gpio.c ++++ b/drivers/media/pci/ivtv/ivtv-gpio.c +@@ -117,7 +117,7 @@ void ivtv_reset_ir_gpio(struct ivtv *itv) + curout = (curout & ~0xF) | 1; + write_reg(curout, IVTV_REG_GPIO_OUT); + /* We could use something else for smaller time */ +- schedule_timeout_interruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_interruptible((1)); + curout |= 2; + write_reg(curout, IVTV_REG_GPIO_OUT); + curdir &= ~0x80; +@@ -137,11 +137,11 @@ int ivtv_reset_tuner_gpio(void *dev, int component, int cmd, int value) + curout = read_reg(IVTV_REG_GPIO_OUT); + curout &= ~(1 << itv->card->xceive_pin); + write_reg(curout, IVTV_REG_GPIO_OUT); +- schedule_timeout_interruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_interruptible((1)); + + curout |= 1 << itv->card->xceive_pin; + write_reg(curout, IVTV_REG_GPIO_OUT); +- schedule_timeout_interruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_interruptible((1)); + return 0; + } + +diff --git a/drivers/media/pci/ivtv/ivtv-ioctl.c b/drivers/media/pci/ivtv/ivtv-ioctl.c +index a66f8b872520..f6404a3af0a5 100644 +--- a/drivers/media/pci/ivtv/ivtv-ioctl.c ++++ b/drivers/media/pci/ivtv/ivtv-ioctl.c +@@ -1155,7 +1155,7 @@ void ivtv_s_std_dec(struct ivtv *itv, v4l2_std_id std) + TASK_UNINTERRUPTIBLE); + if ((read_reg(IVTV_REG_DEC_LINE_FIELD) >> 16) < 100) + break; +- schedule_timeout(msecs_to_jiffies(25)); ++ schedule_msec_hrtimeout((25)); + } + finish_wait(&itv->vsync_waitq, &wait); + mutex_lock(&itv->serialize_lock); +diff --git a/drivers/media/pci/ivtv/ivtv-streams.c b/drivers/media/pci/ivtv/ivtv-streams.c +index a641f20e3f86..e1b40d2b4bed 100644 +--- a/drivers/media/pci/ivtv/ivtv-streams.c ++++ b/drivers/media/pci/ivtv/ivtv-streams.c +@@ -843,7 +843,7 @@ int ivtv_stop_v4l2_encode_stream(struct ivtv_stream *s, int gop_end) + while (!test_bit(IVTV_F_I_EOS, &itv->i_flags) && + time_before(jiffies, + then + msecs_to_jiffies(2000))) { +- schedule_timeout(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout((10)); + } + + /* To convert jiffies to ms, we must multiply by 1000 +diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c +index ab1324f68199..3fdb422a5caa 100644 +--- a/drivers/media/radio/radio-mr800.c ++++ b/drivers/media/radio/radio-mr800.c +@@ -378,7 +378,7 @@ static int vidioc_s_hw_freq_seek(struct file *file, void *priv, + retval = -ENODATA; + break; + } +- if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { ++ if (schedule_msec_hrtimeout_interruptible((10))) { + retval = -ERESTARTSYS; + break; + } +diff --git a/drivers/media/radio/radio-tea5777.c b/drivers/media/radio/radio-tea5777.c +index 61f751cf1aa4..7eb30468091e 100644 +--- a/drivers/media/radio/radio-tea5777.c ++++ b/drivers/media/radio/radio-tea5777.c +@@ -245,7 +245,7 @@ static int radio_tea5777_update_read_reg(struct radio_tea5777 *tea, int wait) + } + + if (wait) { +- if (schedule_timeout_interruptible(msecs_to_jiffies(wait))) ++ if (schedule_msec_hrtimeout_interruptible((wait))) + return -ERESTARTSYS; + } + +diff --git a/drivers/media/radio/tea575x.c b/drivers/media/radio/tea575x.c +index f89f83e04741..325987cd5997 100644 +--- a/drivers/media/radio/tea575x.c ++++ b/drivers/media/radio/tea575x.c +@@ -416,7 +416,7 @@ int snd_tea575x_s_hw_freq_seek(struct file *file, struct snd_tea575x *tea, + for (;;) { + if (time_after(jiffies, timeout)) + break; +- if (schedule_timeout_interruptible(msecs_to_jiffies(10))) { ++ if (schedule_msec_hrtimeout_interruptible((10))) { + /* some signal arrived, stop search */ + tea->val &= ~TEA575X_BIT_SEARCH; + snd_tea575x_set_freq(tea); +diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c +index d6fb2e1a759a..7ac951b84beb 100644 +--- a/drivers/mfd/ucb1x00-core.c ++++ b/drivers/mfd/ucb1x00-core.c +@@ -253,7 +253,7 @@ unsigned int ucb1x00_adc_read(struct ucb1x00 *ucb, int adc_channel, int sync) + break; + /* yield to other processes */ + set_current_state(TASK_INTERRUPTIBLE); +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + } + + return UCB_ADC_DAT(val); +diff --git a/drivers/misc/sgi-xp/xpc_channel.c b/drivers/misc/sgi-xp/xpc_channel.c +index 8e6607fc8a67..b9ab770bbdb5 100644 +--- a/drivers/misc/sgi-xp/xpc_channel.c ++++ b/drivers/misc/sgi-xp/xpc_channel.c +@@ -834,7 +834,7 @@ xpc_allocate_msg_wait(struct xpc_channel *ch) + + atomic_inc(&ch->n_on_msg_allocate_wq); + prepare_to_wait(&ch->msg_allocate_wq, &wait, TASK_INTERRUPTIBLE); +- ret = schedule_timeout(1); ++ ret = schedule_min_hrtimeout(); + finish_wait(&ch->msg_allocate_wq, &wait); + atomic_dec(&ch->n_on_msg_allocate_wq); + +diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c +index 433a14b9f731..4d197a99472b 100644 +--- a/drivers/net/caif/caif_hsi.c ++++ b/drivers/net/caif/caif_hsi.c +@@ -939,7 +939,7 @@ static void cfhsi_wake_down(struct work_struct *work) + break; + + set_current_state(TASK_INTERRUPTIBLE); +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + retry--; + } + +diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c +index 13238a72a338..fc51ae55c63f 100644 +--- a/drivers/net/can/usb/peak_usb/pcan_usb.c ++++ b/drivers/net/can/usb/peak_usb/pcan_usb.c +@@ -250,7 +250,7 @@ static int pcan_usb_write_mode(struct peak_usb_device *dev, u8 onoff) + } else { + /* the PCAN-USB needs time to init */ + set_current_state(TASK_INTERRUPTIBLE); +- schedule_timeout(msecs_to_jiffies(PCAN_USB_STARTUP_TIMEOUT)); ++ schedule_msec_hrtimeout((PCAN_USB_STARTUP_TIMEOUT)); + } + + return err; +diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c +index 77d3c85febf1..1c8f9592a88b 100644 +--- a/drivers/net/usb/lan78xx.c ++++ b/drivers/net/usb/lan78xx.c +@@ -2670,7 +2670,7 @@ static void lan78xx_terminate_urbs(struct lan78xx_net *dev) + while (!skb_queue_empty(&dev->rxq) && + !skb_queue_empty(&dev->txq) && + !skb_queue_empty(&dev->done)) { +- schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); ++ schedule_msec_hrtimeout((UNLINK_TIMEOUT_MS)); + set_current_state(TASK_UNINTERRUPTIBLE); + netif_dbg(dev, ifdown, dev->net, + "waited for %d urb completions\n", temp); +diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c +index 504282af27e5..da60ab9b56c7 100644 +--- a/drivers/net/usb/usbnet.c ++++ b/drivers/net/usb/usbnet.c +@@ -770,7 +770,7 @@ static void wait_skb_queue_empty(struct sk_buff_head *q) + spin_lock_irqsave(&q->lock, flags); + while (!skb_queue_empty(q)) { + spin_unlock_irqrestore(&q->lock, flags); +- schedule_timeout(msecs_to_jiffies(UNLINK_TIMEOUT_MS)); ++ schedule_msec_hrtimeout((UNLINK_TIMEOUT_MS)); + set_current_state(TASK_UNINTERRUPTIBLE); + spin_lock_irqsave(&q->lock, flags); + } +diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c +index 910db46db6a1..497b01ab32d4 100644 +--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c ++++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c +@@ -830,7 +830,7 @@ static int ipw2100_hw_send_command(struct ipw2100_priv *priv, + * doesn't seem to have as many firmware restart cycles... + * + * As a test, we're sticking in a 1/100s delay here */ +- schedule_timeout_uninterruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_uninterruptible((10)); + + return 0; + +@@ -1281,7 +1281,7 @@ static int ipw2100_start_adapter(struct ipw2100_priv *priv) + IPW_DEBUG_FW("Waiting for f/w initialization to complete...\n"); + i = 5000; + do { +- schedule_timeout_uninterruptible(msecs_to_jiffies(40)); ++ schedule_msec_hrtimeout_uninterruptible((40)); + /* Todo... wait for sync command ... */ + + read_register(priv->net_dev, IPW_REG_INTA, &inta); +diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c +index f12b9da69255..6ca6eecbdb2d 100644 +--- a/drivers/parport/ieee1284.c ++++ b/drivers/parport/ieee1284.c +@@ -208,7 +208,7 @@ int parport_wait_peripheral(struct parport *port, + /* parport_wait_event didn't time out, but the + * peripheral wasn't actually ready either. + * Wait for another 10ms. */ +- schedule_timeout_interruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_interruptible((10)); + } + } + +diff --git a/drivers/parport/ieee1284_ops.c b/drivers/parport/ieee1284_ops.c +index 5d41dda6da4e..34705f6b423f 100644 +--- a/drivers/parport/ieee1284_ops.c ++++ b/drivers/parport/ieee1284_ops.c +@@ -537,7 +537,7 @@ size_t parport_ieee1284_ecp_read_data (struct parport *port, + /* Yield the port for a while. */ + if (count && dev->port->irq != PARPORT_IRQ_NONE) { + parport_release (dev); +- schedule_timeout_interruptible(msecs_to_jiffies(40)); ++ schedule_msec_hrtimeout_interruptible((40)); + parport_claim_or_block (dev); + } + else +diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c +index 225638a1b09e..fd6e157161ea 100644 +--- a/drivers/platform/x86/intel_ips.c ++++ b/drivers/platform/x86/intel_ips.c +@@ -798,7 +798,7 @@ static int ips_adjust(void *data) + ips_gpu_lower(ips); + + sleep: +- schedule_timeout_interruptible(msecs_to_jiffies(IPS_ADJUST_PERIOD)); ++ schedule_msec_hrtimeout_interruptible((IPS_ADJUST_PERIOD)); + } while (!kthread_should_stop()); + + dev_dbg(ips->dev, "ips-adjust thread stopped\n"); +@@ -974,7 +974,7 @@ static int ips_monitor(void *data) + seqno_timestamp = get_jiffies_64(); + + old_cpu_power = thm_readl(THM_CEC); +- schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); ++ schedule_msec_hrtimeout_interruptible((IPS_SAMPLE_PERIOD)); + + /* Collect an initial average */ + for (i = 0; i < IPS_SAMPLE_COUNT; i++) { +@@ -1001,7 +1001,7 @@ static int ips_monitor(void *data) + mchp_samples[i] = mchp; + } + +- schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); ++ schedule_msec_hrtimeout_interruptible((IPS_SAMPLE_PERIOD)); + if (kthread_should_stop()) + break; + } +@@ -1028,7 +1028,7 @@ static int ips_monitor(void *data) + * us to reduce the sample frequency if the CPU and GPU are idle. + */ + old_cpu_power = thm_readl(THM_CEC); +- schedule_timeout_interruptible(msecs_to_jiffies(IPS_SAMPLE_PERIOD)); ++ schedule_msec_hrtimeout_interruptible((IPS_SAMPLE_PERIOD)); + last_sample_period = IPS_SAMPLE_PERIOD; + + timer_setup(&ips->timer, monitor_timeout, TIMER_DEFERRABLE); +diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c +index 483c7993516b..fddbaa475066 100644 +--- a/drivers/rtc/rtc-wm8350.c ++++ b/drivers/rtc/rtc-wm8350.c +@@ -119,7 +119,7 @@ static int wm8350_rtc_settime(struct device *dev, struct rtc_time *tm) + /* Wait until confirmation of stopping */ + do { + rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL); +- schedule_timeout_uninterruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_uninterruptible((1)); + } while (--retries && !(rtc_ctrl & WM8350_RTC_STS)); + + if (!retries) { +@@ -202,7 +202,7 @@ static int wm8350_rtc_stop_alarm(struct wm8350 *wm8350) + /* Wait until confirmation of stopping */ + do { + rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL); +- schedule_timeout_uninterruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_uninterruptible((1)); + } while (retries-- && !(rtc_ctrl & WM8350_RTC_ALMSTS)); + + if (!(rtc_ctrl & WM8350_RTC_ALMSTS)) +@@ -225,7 +225,7 @@ static int wm8350_rtc_start_alarm(struct wm8350 *wm8350) + /* Wait until confirmation */ + do { + rtc_ctrl = wm8350_reg_read(wm8350, WM8350_RTC_TIME_CONTROL); +- schedule_timeout_uninterruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_uninterruptible((1)); + } while (retries-- && rtc_ctrl & WM8350_RTC_ALMSTS); + + if (rtc_ctrl & WM8350_RTC_ALMSTS) +diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c +index 96acfcecd540..8c9ae51d98c2 100644 +--- a/drivers/scsi/fnic/fnic_scsi.c ++++ b/drivers/scsi/fnic/fnic_scsi.c +@@ -217,7 +217,7 @@ int fnic_fw_reset_handler(struct fnic *fnic) + + /* wait for io cmpl */ + while (atomic_read(&fnic->in_flight)) +- schedule_timeout(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout((1)); + + spin_lock_irqsave(&fnic->wq_copy_lock[0], flags); + +@@ -2249,7 +2249,7 @@ static int fnic_clean_pending_aborts(struct fnic *fnic, + } + } + +- schedule_timeout(msecs_to_jiffies(2 * fnic->config.ed_tov)); ++ schedule_msec_hrtimeout((2 * fnic->config.ed_tov)); + + /* walk again to check, if IOs are still pending in fw */ + if (fnic_is_abts_pending(fnic, lr_sc)) +diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c +index 4fa6703a9ec9..24740cdfc096 100644 +--- a/drivers/scsi/lpfc/lpfc_scsi.c ++++ b/drivers/scsi/lpfc/lpfc_scsi.c +@@ -5211,7 +5211,7 @@ lpfc_reset_flush_io_context(struct lpfc_vport *vport, uint16_t tgt_id, + tgt_id, lun_id, context); + later = msecs_to_jiffies(2 * vport->cfg_devloss_tmo * 1000) + jiffies; + while (time_after(later, jiffies) && cnt) { +- schedule_timeout_uninterruptible(msecs_to_jiffies(20)); ++ schedule_msec_hrtimeout_uninterruptible((20)); + cnt = lpfc_sli_sum_iocb(vport, tgt_id, lun_id, context); + } + if (cnt) { +diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c +index b3650c989ed4..7ed1fb285754 100644 +--- a/drivers/scsi/snic/snic_scsi.c ++++ b/drivers/scsi/snic/snic_scsi.c +@@ -2353,7 +2353,7 @@ snic_reset(struct Scsi_Host *shost, struct scsi_cmnd *sc) + + /* Wait for all the IOs that are entered in Qcmd */ + while (atomic_read(&snic->ios_inflight)) +- schedule_timeout(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout((1)); + + ret = snic_issue_hba_reset(snic, sc); + if (ret) { +diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c +index 5edf59ac6706..3784dc56d39c 100644 +--- a/drivers/staging/comedi/drivers/ni_mio_common.c ++++ b/drivers/staging/comedi/drivers/ni_mio_common.c +@@ -4723,7 +4723,7 @@ static int cs5529_wait_for_idle(struct comedi_device *dev) + if ((status & NI67XX_CAL_STATUS_BUSY) == 0) + break; + set_current_state(TASK_INTERRUPTIBLE); +- if (schedule_timeout(1)) ++ if (schedule_min_hrtimeout()) + return -EIO; + } + if (i == timeout) { +diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c +new file mode 100644 +index 000000000000..8cca151741b2 +--- /dev/null ++++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c +@@ -0,0 +1,426 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * GPL HEADER START ++ * ++ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 only, ++ * as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License version 2 for more details (a copy is included ++ * in the LICENSE file that accompanied this code). ++ * ++ * You should have received a copy of the GNU General Public License ++ * version 2 along with this program; If not, see ++ * http://www.gnu.org/licenses/gpl-2.0.html ++ * ++ * GPL HEADER END ++ */ ++/* ++ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. ++ * Use is subject to license terms. ++ * ++ * Copyright (c) 2012, Intel Corporation. ++ */ ++/* ++ * This file is part of Lustre, http://www.lustre.org/ ++ * Lustre is a trademark of Sun Microsystems, Inc. ++ * ++ * lnet/lnet/lib-eq.c ++ * ++ * Library level Event queue management routines ++ */ ++ ++#define DEBUG_SUBSYSTEM S_LNET ++ ++#include ++ ++/** ++ * Create an event queue that has room for \a count number of events. ++ * ++ * The event queue is circular and older events will be overwritten by new ++ * ones if they are not removed in time by the user using the functions ++ * LNetEQGet(), LNetEQWait(), or LNetEQPoll(). It is up to the user to ++ * determine the appropriate size of the event queue to prevent this loss ++ * of events. Note that when EQ handler is specified in \a callback, no ++ * event loss can happen, since the handler is run for each event deposited ++ * into the EQ. ++ * ++ * \param count The number of events to be stored in the event queue. It ++ * will be rounded up to the next power of two. ++ * \param callback A handler function that runs when an event is deposited ++ * into the EQ. The constant value LNET_EQ_HANDLER_NONE can be used to ++ * indicate that no event handler is desired. ++ * \param handle On successful return, this location will hold a handle for ++ * the newly created EQ. ++ * ++ * \retval 0 On success. ++ * \retval -EINVAL If an parameter is not valid. ++ * \retval -ENOMEM If memory for the EQ can't be allocated. ++ * ++ * \see lnet_eq_handler_t for the discussion on EQ handler semantics. ++ */ ++int ++LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback, ++ struct lnet_handle_eq *handle) ++{ ++ struct lnet_eq *eq; ++ ++ LASSERT(the_lnet.ln_refcount > 0); ++ ++ /* ++ * We need count to be a power of 2 so that when eq_{enq,deq}_seq ++ * overflow, they don't skip entries, so the queue has the same ++ * apparent capacity at all times ++ */ ++ if (count) ++ count = roundup_pow_of_two(count); ++ ++ if (callback != LNET_EQ_HANDLER_NONE && count) ++ CWARN("EQ callback is guaranteed to get every event, do you still want to set eqcount %d for polling event which will have locking overhead? Please contact with developer to confirm\n", count); ++ ++ /* ++ * count can be 0 if only need callback, we can eliminate ++ * overhead of enqueue event ++ */ ++ if (!count && callback == LNET_EQ_HANDLER_NONE) ++ return -EINVAL; ++ ++ eq = kzalloc(sizeof(*eq), GFP_NOFS); ++ if (!eq) ++ return -ENOMEM; ++ ++ if (count) { ++ eq->eq_events = kvmalloc_array(count, sizeof(struct lnet_event), ++ GFP_KERNEL | __GFP_ZERO); ++ if (!eq->eq_events) ++ goto failed; ++ /* ++ * NB allocator has set all event sequence numbers to 0, ++ * so all them should be earlier than eq_deq_seq ++ */ ++ } ++ ++ eq->eq_deq_seq = 1; ++ eq->eq_enq_seq = 1; ++ eq->eq_size = count; ++ eq->eq_callback = callback; ++ ++ eq->eq_refs = cfs_percpt_alloc(lnet_cpt_table(), ++ sizeof(*eq->eq_refs[0])); ++ if (!eq->eq_refs) ++ goto failed; ++ ++ /* MUST hold both exclusive lnet_res_lock */ ++ lnet_res_lock(LNET_LOCK_EX); ++ /* ++ * NB: hold lnet_eq_wait_lock for EQ link/unlink, so we can do ++ * both EQ lookup and poll event with only lnet_eq_wait_lock ++ */ ++ lnet_eq_wait_lock(); ++ ++ lnet_res_lh_initialize(&the_lnet.ln_eq_container, &eq->eq_lh); ++ list_add(&eq->eq_list, &the_lnet.ln_eq_container.rec_active); ++ ++ lnet_eq_wait_unlock(); ++ lnet_res_unlock(LNET_LOCK_EX); ++ ++ lnet_eq2handle(handle, eq); ++ return 0; ++ ++failed: ++ kvfree(eq->eq_events); ++ ++ if (eq->eq_refs) ++ cfs_percpt_free(eq->eq_refs); ++ ++ kfree(eq); ++ return -ENOMEM; ++} ++EXPORT_SYMBOL(LNetEQAlloc); ++ ++/** ++ * Release the resources associated with an event queue if it's idle; ++ * otherwise do nothing and it's up to the user to try again. ++ * ++ * \param eqh A handle for the event queue to be released. ++ * ++ * \retval 0 If the EQ is not in use and freed. ++ * \retval -ENOENT If \a eqh does not point to a valid EQ. ++ * \retval -EBUSY If the EQ is still in use by some MDs. ++ */ ++int ++LNetEQFree(struct lnet_handle_eq eqh) ++{ ++ struct lnet_eq *eq; ++ struct lnet_event *events = NULL; ++ int **refs = NULL; ++ int *ref; ++ int rc = 0; ++ int size = 0; ++ int i; ++ ++ LASSERT(the_lnet.ln_refcount > 0); ++ ++ lnet_res_lock(LNET_LOCK_EX); ++ /* ++ * NB: hold lnet_eq_wait_lock for EQ link/unlink, so we can do ++ * both EQ lookup and poll event with only lnet_eq_wait_lock ++ */ ++ lnet_eq_wait_lock(); ++ ++ eq = lnet_handle2eq(&eqh); ++ if (!eq) { ++ rc = -ENOENT; ++ goto out; ++ } ++ ++ cfs_percpt_for_each(ref, i, eq->eq_refs) { ++ LASSERT(*ref >= 0); ++ if (!*ref) ++ continue; ++ ++ CDEBUG(D_NET, "Event equeue (%d: %d) busy on destroy.\n", ++ i, *ref); ++ rc = -EBUSY; ++ goto out; ++ } ++ ++ /* stash for free after lock dropped */ ++ events = eq->eq_events; ++ size = eq->eq_size; ++ refs = eq->eq_refs; ++ ++ lnet_res_lh_invalidate(&eq->eq_lh); ++ list_del(&eq->eq_list); ++ kfree(eq); ++ out: ++ lnet_eq_wait_unlock(); ++ lnet_res_unlock(LNET_LOCK_EX); ++ ++ kvfree(events); ++ if (refs) ++ cfs_percpt_free(refs); ++ ++ return rc; ++} ++EXPORT_SYMBOL(LNetEQFree); ++ ++void ++lnet_eq_enqueue_event(struct lnet_eq *eq, struct lnet_event *ev) ++{ ++ /* MUST called with resource lock hold but w/o lnet_eq_wait_lock */ ++ int index; ++ ++ if (!eq->eq_size) { ++ LASSERT(eq->eq_callback != LNET_EQ_HANDLER_NONE); ++ eq->eq_callback(ev); ++ return; ++ } ++ ++ lnet_eq_wait_lock(); ++ ev->sequence = eq->eq_enq_seq++; ++ ++ LASSERT(eq->eq_size == LOWEST_BIT_SET(eq->eq_size)); ++ index = ev->sequence & (eq->eq_size - 1); ++ ++ eq->eq_events[index] = *ev; ++ ++ if (eq->eq_callback != LNET_EQ_HANDLER_NONE) ++ eq->eq_callback(ev); ++ ++ /* Wake anyone waiting in LNetEQPoll() */ ++ if (waitqueue_active(&the_lnet.ln_eq_waitq)) ++ wake_up_all(&the_lnet.ln_eq_waitq); ++ lnet_eq_wait_unlock(); ++} ++ ++static int ++lnet_eq_dequeue_event(struct lnet_eq *eq, struct lnet_event *ev) ++{ ++ int new_index = eq->eq_deq_seq & (eq->eq_size - 1); ++ struct lnet_event *new_event = &eq->eq_events[new_index]; ++ int rc; ++ ++ /* must called with lnet_eq_wait_lock hold */ ++ if (LNET_SEQ_GT(eq->eq_deq_seq, new_event->sequence)) ++ return 0; ++ ++ /* We've got a new event... */ ++ *ev = *new_event; ++ ++ CDEBUG(D_INFO, "event: %p, sequence: %lu, eq->size: %u\n", ++ new_event, eq->eq_deq_seq, eq->eq_size); ++ ++ /* ...but did it overwrite an event we've not seen yet? */ ++ if (eq->eq_deq_seq == new_event->sequence) { ++ rc = 1; ++ } else { ++ /* ++ * don't complain with CERROR: some EQs are sized small ++ * anyway; if it's important, the caller should complain ++ */ ++ CDEBUG(D_NET, "Event Queue Overflow: eq seq %lu ev seq %lu\n", ++ eq->eq_deq_seq, new_event->sequence); ++ rc = -EOVERFLOW; ++ } ++ ++ eq->eq_deq_seq = new_event->sequence + 1; ++ return rc; ++} ++ ++/** ++ * A nonblocking function that can be used to get the next event in an EQ. ++ * If an event handler is associated with the EQ, the handler will run before ++ * this function returns successfully. The event is removed from the queue. ++ * ++ * \param eventq A handle for the event queue. ++ * \param event On successful return (1 or -EOVERFLOW), this location will ++ * hold the next event in the EQ. ++ * ++ * \retval 0 No pending event in the EQ. ++ * \retval 1 Indicates success. ++ * \retval -ENOENT If \a eventq does not point to a valid EQ. ++ * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that ++ * at least one event between this event and the last event obtained from the ++ * EQ has been dropped due to limited space in the EQ. ++ */ ++ ++/** ++ * Block the calling process until there is an event in the EQ. ++ * If an event handler is associated with the EQ, the handler will run before ++ * this function returns successfully. This function returns the next event ++ * in the EQ and removes it from the EQ. ++ * ++ * \param eventq A handle for the event queue. ++ * \param event On successful return (1 or -EOVERFLOW), this location will ++ * hold the next event in the EQ. ++ * ++ * \retval 1 Indicates success. ++ * \retval -ENOENT If \a eventq does not point to a valid EQ. ++ * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that ++ * at least one event between this event and the last event obtained from the ++ * EQ has been dropped due to limited space in the EQ. ++ */ ++ ++static int ++lnet_eq_wait_locked(int *timeout_ms, long state) ++__must_hold(&the_lnet.ln_eq_wait_lock) ++{ ++ int tms = *timeout_ms; ++ int wait; ++ wait_queue_entry_t wl; ++ unsigned long now; ++ ++ if (!tms) ++ return -ENXIO; /* don't want to wait and no new event */ ++ ++ init_waitqueue_entry(&wl, current); ++ set_current_state(state); ++ add_wait_queue(&the_lnet.ln_eq_waitq, &wl); ++ ++ lnet_eq_wait_unlock(); ++ ++ if (tms < 0) { ++ schedule(); ++ } else { ++ now = jiffies; ++ schedule_msec_hrtimeout((tms)); ++ tms -= jiffies_to_msecs(jiffies - now); ++ if (tms < 0) /* no more wait but may have new event */ ++ tms = 0; ++ } ++ ++ wait = tms; /* might need to call here again */ ++ *timeout_ms = tms; ++ ++ lnet_eq_wait_lock(); ++ remove_wait_queue(&the_lnet.ln_eq_waitq, &wl); ++ ++ return wait; ++} ++ ++/** ++ * Block the calling process until there's an event from a set of EQs or ++ * timeout happens. ++ * ++ * If an event handler is associated with the EQ, the handler will run before ++ * this function returns successfully, in which case the corresponding event ++ * is consumed. ++ * ++ * LNetEQPoll() provides a timeout to allow applications to poll, block for a ++ * fixed period, or block indefinitely. ++ * ++ * \param eventqs,neq An array of EQ handles, and size of the array. ++ * \param timeout_ms Time in milliseconds to wait for an event to occur on ++ * one of the EQs. The constant LNET_TIME_FOREVER can be used to indicate an ++ * infinite timeout. ++ * \param interruptible, if true, use TASK_INTERRUPTIBLE, else TASK_NOLOAD ++ * \param event,which On successful return (1 or -EOVERFLOW), \a event will ++ * hold the next event in the EQs, and \a which will contain the index of the ++ * EQ from which the event was taken. ++ * ++ * \retval 0 No pending event in the EQs after timeout. ++ * \retval 1 Indicates success. ++ * \retval -EOVERFLOW Indicates success (i.e., an event is returned) and that ++ * at least one event between this event and the last event obtained from the ++ * EQ indicated by \a which has been dropped due to limited space in the EQ. ++ * \retval -ENOENT If there's an invalid handle in \a eventqs. ++ */ ++int ++LNetEQPoll(struct lnet_handle_eq *eventqs, int neq, int timeout_ms, ++ int interruptible, ++ struct lnet_event *event, int *which) ++{ ++ int wait = 1; ++ int rc; ++ int i; ++ ++ LASSERT(the_lnet.ln_refcount > 0); ++ ++ if (neq < 1) ++ return -ENOENT; ++ ++ lnet_eq_wait_lock(); ++ ++ for (;;) { ++ for (i = 0; i < neq; i++) { ++ struct lnet_eq *eq = lnet_handle2eq(&eventqs[i]); ++ ++ if (!eq) { ++ lnet_eq_wait_unlock(); ++ return -ENOENT; ++ } ++ ++ rc = lnet_eq_dequeue_event(eq, event); ++ if (rc) { ++ lnet_eq_wait_unlock(); ++ *which = i; ++ return rc; ++ } ++ } ++ ++ if (!wait) ++ break; ++ ++ /* ++ * return value of lnet_eq_wait_locked: ++ * -1 : did nothing and it's sure no new event ++ * 1 : sleep inside and wait until new event ++ * 0 : don't want to wait anymore, but might have new event ++ * so need to call dequeue again ++ */ ++ wait = lnet_eq_wait_locked(&timeout_ms, ++ interruptible ? TASK_INTERRUPTIBLE ++ : TASK_NOLOAD); ++ if (wait < 0) /* no new event */ ++ break; ++ } ++ ++ lnet_eq_wait_unlock(); ++ return 0; ++} +diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c +index 69e6abe14abf..7d23e214ac21 100644 +--- a/drivers/staging/rts5208/rtsx.c ++++ b/drivers/staging/rts5208/rtsx.c +@@ -507,7 +507,7 @@ static int rtsx_polling_thread(void *__dev) + + for (;;) { + set_current_state(TASK_INTERRUPTIBLE); +- schedule_timeout(msecs_to_jiffies(POLLING_INTERVAL)); ++ schedule_msec_hrtimeout((POLLING_INTERVAL)); + + /* lock the device pointers */ + mutex_lock(&dev->dev_mutex); +diff --git a/drivers/staging/speakup/speakup_acntpc.c b/drivers/staging/speakup/speakup_acntpc.c +index 28519754b2f0..a96805bbec5c 100644 +--- a/drivers/staging/speakup/speakup_acntpc.c ++++ b/drivers/staging/speakup/speakup_acntpc.c +@@ -198,7 +198,7 @@ static void do_catch_up(struct spk_synth *synth) + full_time_val = full_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (synth_full()) { +- schedule_timeout(msecs_to_jiffies(full_time_val)); ++ schedule_msec_hrtimeout((full_time_val)); + continue; + } + set_current_state(TASK_RUNNING); +@@ -226,7 +226,7 @@ static void do_catch_up(struct spk_synth *synth) + jiffy_delta_val = jiffy_delta->u.n.value; + delay_time_val = delay_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout(delay_time_val); + jiff_max = jiffies + jiffy_delta_val; + } + } +diff --git a/drivers/staging/speakup/speakup_apollo.c b/drivers/staging/speakup/speakup_apollo.c +index 0877b4044c28..627102d048c1 100644 +--- a/drivers/staging/speakup/speakup_apollo.c ++++ b/drivers/staging/speakup/speakup_apollo.c +@@ -165,7 +165,7 @@ static void do_catch_up(struct spk_synth *synth) + if (!synth->io_ops->synth_out(synth, ch)) { + synth->io_ops->tiocmset(0, UART_MCR_RTS); + synth->io_ops->tiocmset(UART_MCR_RTS, 0); +- schedule_timeout(msecs_to_jiffies(full_time_val)); ++ schedule_msec_hrtimeout(full_time_val); + continue; + } + if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { +diff --git a/drivers/staging/speakup/speakup_decext.c b/drivers/staging/speakup/speakup_decext.c +index 3741c0fcf5bb..bff857b4aa5f 100644 +--- a/drivers/staging/speakup/speakup_decext.c ++++ b/drivers/staging/speakup/speakup_decext.c +@@ -176,7 +176,7 @@ static void do_catch_up(struct spk_synth *synth) + if (ch == '\n') + ch = 0x0D; + if (synth_full() || !synth->io_ops->synth_out(synth, ch)) { +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout(delay_time_val); + continue; + } + set_current_state(TASK_RUNNING); +diff --git a/drivers/staging/speakup/speakup_decpc.c b/drivers/staging/speakup/speakup_decpc.c +index 6649309e0342..c60e4712d817 100644 +--- a/drivers/staging/speakup/speakup_decpc.c ++++ b/drivers/staging/speakup/speakup_decpc.c +@@ -394,7 +394,7 @@ static void do_catch_up(struct spk_synth *synth) + if (ch == '\n') + ch = 0x0D; + if (dt_sendchar(ch)) { +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout((delay_time_val)); + continue; + } + set_current_state(TASK_RUNNING); +diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c +index a144f28ee1a8..c34764fafe2b 100644 +--- a/drivers/staging/speakup/speakup_dectlk.c ++++ b/drivers/staging/speakup/speakup_dectlk.c +@@ -244,7 +244,7 @@ static void do_catch_up(struct spk_synth *synth) + if (ch == '\n') + ch = 0x0D; + if (synth_full_val || !synth->io_ops->synth_out(synth, ch)) { +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout(delay_time_val); + continue; + } + set_current_state(TASK_RUNNING); +diff --git a/drivers/staging/speakup/speakup_dtlk.c b/drivers/staging/speakup/speakup_dtlk.c +index dbebed0eeeec..6d83c13ca4a6 100644 +--- a/drivers/staging/speakup/speakup_dtlk.c ++++ b/drivers/staging/speakup/speakup_dtlk.c +@@ -211,7 +211,7 @@ static void do_catch_up(struct spk_synth *synth) + delay_time_val = delay_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (synth_full()) { +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout((delay_time_val)); + continue; + } + set_current_state(TASK_RUNNING); +@@ -227,7 +227,7 @@ static void do_catch_up(struct spk_synth *synth) + delay_time_val = delay_time->u.n.value; + jiffy_delta_val = jiffy_delta->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout((delay_time_val)); + jiff_max = jiffies + jiffy_delta_val; + } + } +diff --git a/drivers/staging/speakup/speakup_keypc.c b/drivers/staging/speakup/speakup_keypc.c +index 3901734982a4..4e8a7a98b46d 100644 +--- a/drivers/staging/speakup/speakup_keypc.c ++++ b/drivers/staging/speakup/speakup_keypc.c +@@ -199,7 +199,7 @@ spin_lock_irqsave(&speakup_info.spinlock, flags); + full_time_val = full_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (synth_full()) { +- schedule_timeout(msecs_to_jiffies(full_time_val)); ++ schedule_msec_hrtimeout((full_time_val)); + continue; + } + set_current_state(TASK_RUNNING); +@@ -232,7 +232,7 @@ spin_lock_irqsave(&speakup_info.spinlock, flags); + jiffy_delta_val = jiffy_delta->u.n.value; + delay_time_val = delay_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); +- schedule_timeout(msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout((delay_time_val)); + jiff_max = jiffies+jiffy_delta_val; + } + } +diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c +index 25f259ee4ffc..b9721103e651 100644 +--- a/drivers/staging/speakup/synth.c ++++ b/drivers/staging/speakup/synth.c +@@ -93,12 +93,8 @@ static void _spk_do_catch_up(struct spk_synth *synth, int unicode) + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (ch == '\n') + ch = synth->procspeech; +- if (unicode) +- ret = synth->io_ops->synth_out_unicode(synth, ch); +- else +- ret = synth->io_ops->synth_out(synth, ch); +- if (!ret) { +- schedule_timeout(msecs_to_jiffies(full_time_val)); ++ if (!synth->io_ops->synth_out(synth, ch)) { ++ schedule_msec_hrtimeout(full_time_val); + continue; + } + if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) { +@@ -108,11 +104,9 @@ static void _spk_do_catch_up(struct spk_synth *synth, int unicode) + full_time_val = full_time->u.n.value; + spin_unlock_irqrestore(&speakup_info.spinlock, flags); + if (synth->io_ops->synth_out(synth, synth->procspeech)) +- schedule_timeout( +- msecs_to_jiffies(delay_time_val)); ++ schedule_msec_hrtimeout(delay_time_val); + else +- schedule_timeout( +- msecs_to_jiffies(full_time_val)); ++ schedule_msec_hrtimeout(full_time_val); + jiff_max = jiffies + jiffy_delta_val; + } + set_current_state(TASK_RUNNING); +diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c +index 3647b8f1ed28..9fb26ccc2b3b 100644 +--- a/drivers/staging/unisys/visornic/visornic_main.c ++++ b/drivers/staging/unisys/visornic/visornic_main.c +@@ -549,7 +549,7 @@ static int visornic_disable_with_timeout(struct net_device *netdev, + } + set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&devdata->priv_lock, flags); +- wait += schedule_timeout(msecs_to_jiffies(10)); ++ wait += schedule_msec_hrtimeout((10)); + spin_lock_irqsave(&devdata->priv_lock, flags); + } + +@@ -560,7 +560,7 @@ static int visornic_disable_with_timeout(struct net_device *netdev, + while (1) { + set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&devdata->priv_lock, flags); +- schedule_timeout(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout((10)); + spin_lock_irqsave(&devdata->priv_lock, flags); + if (atomic_read(&devdata->usage)) + break; +@@ -714,7 +714,7 @@ static int visornic_enable_with_timeout(struct net_device *netdev, + } + set_current_state(TASK_INTERRUPTIBLE); + spin_unlock_irqrestore(&devdata->priv_lock, flags); +- wait += schedule_timeout(msecs_to_jiffies(10)); ++ wait += schedule_msec_hrtimeout((10)); + spin_lock_irqsave(&devdata->priv_lock, flags); + } + +diff --git a/drivers/video/fbdev/omap/hwa742.c b/drivers/video/fbdev/omap/hwa742.c +index 6199d4806193..7c7165f2dad4 100644 +--- a/drivers/video/fbdev/omap/hwa742.c ++++ b/drivers/video/fbdev/omap/hwa742.c +@@ -926,7 +926,7 @@ static void hwa742_resume(void) + if (hwa742_read_reg(HWA742_PLL_DIV_REG) & (1 << 7)) + break; + set_current_state(TASK_UNINTERRUPTIBLE); +- schedule_timeout(msecs_to_jiffies(5)); ++ schedule_msec_hrtimeout((5)); + } + hwa742_set_update_mode(hwa742.update_mode_before_suspend); + } +diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c +index bbed039617a4..681ae041ea77 100644 +--- a/drivers/video/fbdev/pxafb.c ++++ b/drivers/video/fbdev/pxafb.c +@@ -1287,7 +1287,7 @@ static int pxafb_smart_thread(void *arg) + mutex_unlock(&fbi->ctrlr_lock); + + set_current_state(TASK_INTERRUPTIBLE); +- schedule_timeout(msecs_to_jiffies(30)); ++ schedule_msec_hrtimeout((30)); + } + + pr_debug("%s(): task ending\n", __func__); +diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c +index a1febf155747..9321458b6e89 100644 +--- a/fs/btrfs/extent-tree.c ++++ b/fs/btrfs/extent-tree.c +@@ -5937,7 +5937,7 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes) + flush = BTRFS_RESERVE_FLUSH_LIMIT; + + if (btrfs_transaction_in_commit(fs_info)) +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + } + + if (delalloc_lock) +diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c +index ffca2abf13d0..89b2a7f7397e 100644 +--- a/fs/btrfs/inode-map.c ++++ b/fs/btrfs/inode-map.c +@@ -75,7 +75,7 @@ static int caching_kthread(void *data) + btrfs_release_path(path); + root->ino_cache_progress = last; + up_read(&fs_info->commit_root_sem); +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + goto again; + } else + continue; +diff --git a/fs/proc/base.c b/fs/proc/base.c +index ce3465479447..95567e7a25dc 100644 +--- a/fs/proc/base.c ++++ b/fs/proc/base.c +@@ -459,7 +459,7 @@ static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns, + seq_printf(m, "0 0 0\n"); + else + seq_printf(m, "%llu %llu %lu\n", +- (unsigned long long)task->se.sum_exec_runtime, ++ (unsigned long long)tsk_seruntime(task), + (unsigned long long)task->sched_info.run_delay, + task->sched_info.pcount); + +diff --git a/include/linux/freezer.h b/include/linux/freezer.h +index 21f5aa0b217f..ee9b46394fdf 100644 +--- a/include/linux/freezer.h ++++ b/include/linux/freezer.h +@@ -297,6 +297,7 @@ static inline void set_freezable(void) {} + #define wait_event_freezekillable_unsafe(wq, condition) \ + wait_event_killable(wq, condition) + ++#define pm_freezing (false) + #endif /* !CONFIG_FREEZER */ + + #endif /* FREEZER_H_INCLUDED */ +diff --git a/include/linux/init_task.h b/include/linux/init_task.h +index a7083a45a26c..c0fae13d6fc0 100644 +--- a/include/linux/init_task.h ++++ b/include/linux/init_task.h +@@ -46,7 +46,11 @@ extern struct cred init_cred; + #define INIT_CPU_TIMERS(s) + #endif + ++#ifdef CONFIG_SCHED_MUQSS ++#define INIT_TASK_COMM "MuQSS" ++#else + #define INIT_TASK_COMM "swapper" ++#endif + + /* Attach to the init_task data structure for proper alignment */ + #ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK +diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h +index 9e30ed6443db..7d6e7e7cdf9f 100644 +--- a/include/linux/ioprio.h ++++ b/include/linux/ioprio.h +@@ -53,6 +53,8 @@ enum { + */ + static inline int task_nice_ioprio(struct task_struct *task) + { ++ if (iso_task(task)) ++ return 0; + return (task_nice(task) + 20) / 5; + } + +diff --git a/include/linux/sched.h b/include/linux/sched.h +index 291a9bd5b97f..5b28a41d399e 100644 +--- a/include/linux/sched.h ++++ b/include/linux/sched.h +@@ -29,6 +29,9 @@ + #include + #include + #include ++#ifdef CONFIG_SCHED_MUQSS ++#include ++#endif + + /* task_struct member predeclarations (sorted alphabetically): */ + struct audit_context; +@@ -209,13 +212,40 @@ struct task_group; + + extern void scheduler_tick(void); + +-#define MAX_SCHEDULE_TIMEOUT LONG_MAX +- ++#define MAX_SCHEDULE_TIMEOUT LONG_MAX + extern long schedule_timeout(long timeout); + extern long schedule_timeout_interruptible(long timeout); + extern long schedule_timeout_killable(long timeout); + extern long schedule_timeout_uninterruptible(long timeout); + extern long schedule_timeout_idle(long timeout); ++ ++#ifdef CONFIG_HIGH_RES_TIMERS ++extern long schedule_msec_hrtimeout(long timeout); ++extern long schedule_min_hrtimeout(void); ++extern long schedule_msec_hrtimeout_interruptible(long timeout); ++extern long schedule_msec_hrtimeout_uninterruptible(long timeout); ++#else ++static inline long schedule_msec_hrtimeout(long timeout) ++{ ++ return schedule_timeout(msecs_to_jiffies(timeout)); ++} ++ ++static inline long schedule_min_hrtimeout(void) ++{ ++ return schedule_timeout(1); ++} ++ ++static inline long schedule_msec_hrtimeout_interruptible(long timeout) ++{ ++ return schedule_timeout_interruptible(msecs_to_jiffies(timeout)); ++} ++ ++static inline long schedule_msec_hrtimeout_uninterruptible(long timeout) ++{ ++ return schedule_timeout_uninterruptible(msecs_to_jiffies(timeout)); ++} ++#endif ++ + asmlinkage void schedule(void); + extern void schedule_preempt_disabled(void); + +@@ -610,9 +640,11 @@ struct task_struct { + unsigned int flags; + unsigned int ptrace; + ++#if defined(CONFIG_SMP) || defined(CONFIG_SCHED_MUQSS) ++ int on_cpu; ++#endif + #ifdef CONFIG_SMP + struct llist_node wake_entry; +- int on_cpu; + #ifdef CONFIG_THREAD_INFO_IN_TASK + /* Current CPU: */ + unsigned int cpu; +@@ -637,10 +669,25 @@ struct task_struct { + int static_prio; + int normal_prio; + unsigned int rt_priority; ++#ifdef CONFIG_SCHED_MUQSS ++ int time_slice; ++ u64 deadline; ++ skiplist_node node; /* Skip list node */ ++ u64 last_ran; ++ u64 sched_time; /* sched_clock time spent running */ ++#ifdef CONFIG_SMT_NICE ++ int smt_bias; /* Policy/nice level bias across smt siblings */ ++#endif ++#ifdef CONFIG_HOTPLUG_CPU ++ bool zerobound; /* Bound to CPU0 for hotplug */ ++#endif ++ unsigned long rt_timeout; ++#else /* CONFIG_SCHED_MUQSS */ + + const struct sched_class *sched_class; + struct sched_entity se; + struct sched_rt_entity rt; ++#endif + #ifdef CONFIG_CGROUP_SCHED + struct task_group *sched_task_group; + #endif +@@ -801,6 +848,10 @@ struct task_struct { + #ifdef CONFIG_ARCH_HAS_SCALED_CPUTIME + u64 utimescaled; + u64 stimescaled; ++#endif ++#ifdef CONFIG_SCHED_MUQSS ++ /* Unbanked cpu time */ ++ unsigned long utime_ns, stime_ns; + #endif + u64 gtime; + struct prev_cputime prev_cputime; +@@ -1223,6 +1274,40 @@ struct task_struct { + */ + }; + ++#ifdef CONFIG_SCHED_MUQSS ++#define tsk_seruntime(t) ((t)->sched_time) ++#define tsk_rttimeout(t) ((t)->rt_timeout) ++ ++static inline void tsk_cpus_current(struct task_struct *p) ++{ ++} ++ ++void print_scheduler_version(void); ++ ++static inline bool iso_task(struct task_struct *p) ++{ ++ return (p->policy == SCHED_ISO); ++} ++#else /* CFS */ ++#define tsk_seruntime(t) ((t)->se.sum_exec_runtime) ++#define tsk_rttimeout(t) ((t)->rt.timeout) ++ ++static inline void tsk_cpus_current(struct task_struct *p) ++{ ++ p->nr_cpus_allowed = current->nr_cpus_allowed; ++} ++ ++static inline void print_scheduler_version(void) ++{ ++ printk(KERN_INFO "CFS CPU scheduler.\n"); ++} ++ ++static inline bool iso_task(struct task_struct *p) ++{ ++ return false; ++} ++#endif /* CONFIG_SCHED_MUQSS */ ++ + static inline struct pid *task_pid(struct task_struct *task) + { + return task->thread_pid; +diff --git a/include/linux/sched/nohz.h b/include/linux/sched/nohz.h +index b36f4cf38111..61b03ea2edc9 100644 +--- a/include/linux/sched/nohz.h ++++ b/include/linux/sched/nohz.h +@@ -6,7 +6,7 @@ + * This is the interface between the scheduler and nohz/dynticks: + */ + +-#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) ++#if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) && !defined(CONFIG_SCHED_MUQSS) + extern void cpu_load_update_nohz_start(void); + extern void cpu_load_update_nohz_stop(void); + #else +@@ -21,7 +21,7 @@ extern int get_nohz_timer_target(void); + static inline void nohz_balance_enter_idle(int cpu) { } + #endif + +-#ifdef CONFIG_NO_HZ_COMMON ++#if defined(CONFIG_NO_HZ_COMMON) && !defined(CONFIG_SCHED_MUQSS) + void calc_load_nohz_start(void); + void calc_load_nohz_stop(void); + #else +diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h +index 7d64feafc408..43c9d9e50c09 100644 +--- a/include/linux/sched/prio.h ++++ b/include/linux/sched/prio.h +@@ -20,8 +20,20 @@ + */ + + #define MAX_USER_RT_PRIO 100 ++ ++#ifdef CONFIG_SCHED_MUQSS ++/* Note different MAX_RT_PRIO */ ++#define MAX_RT_PRIO (MAX_USER_RT_PRIO + 1) ++ ++#define ISO_PRIO (MAX_RT_PRIO) ++#define NORMAL_PRIO (MAX_RT_PRIO + 1) ++#define IDLE_PRIO (MAX_RT_PRIO + 2) ++#define PRIO_LIMIT ((IDLE_PRIO) + 1) ++#else /* CONFIG_SCHED_MUQSS */ + #define MAX_RT_PRIO MAX_USER_RT_PRIO + ++#endif /* CONFIG_SCHED_MUQSS */ ++ + #define MAX_PRIO (MAX_RT_PRIO + NICE_WIDTH) + #define DEFAULT_PRIO (MAX_RT_PRIO + NICE_WIDTH / 2) + +diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h +index e5af028c08b4..010b2244e0b6 100644 +--- a/include/linux/sched/rt.h ++++ b/include/linux/sched/rt.h +@@ -24,8 +24,10 @@ static inline bool task_is_realtime(struct task_struct *tsk) + + if (policy == SCHED_FIFO || policy == SCHED_RR) + return true; ++#ifndef CONFIG_SCHED_MUQSS + if (policy == SCHED_DEADLINE) + return true; ++#endif + return false; + } + +diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h +index 108ede99e533..21f53ec1bb1f 100644 +--- a/include/linux/sched/task.h ++++ b/include/linux/sched/task.h +@@ -80,7 +80,7 @@ extern long kernel_wait4(pid_t, int __user *, int, struct rusage *); + extern void free_task(struct task_struct *tsk); + + /* sched_exec is called by processes performing an exec */ +-#ifdef CONFIG_SMP ++#if defined(CONFIG_SMP) && !defined(CONFIG_SCHED_MUQSS) + extern void sched_exec(void); + #else + #define sched_exec() {} +diff --git a/include/linux/skip_list.h b/include/linux/skip_list.h +new file mode 100644 +index 000000000000..d4be84ba273b +--- /dev/null ++++ b/include/linux/skip_list.h +@@ -0,0 +1,33 @@ ++#ifndef _LINUX_SKIP_LISTS_H ++#define _LINUX_SKIP_LISTS_H ++typedef u64 keyType; ++typedef void *valueType; ++ ++typedef struct nodeStructure skiplist_node; ++ ++struct nodeStructure { ++ int level; /* Levels in this structure */ ++ keyType key; ++ valueType value; ++ skiplist_node *next[8]; ++ skiplist_node *prev[8]; ++}; ++ ++typedef struct listStructure { ++ int entries; ++ int level; /* Maximum level of the list ++ (1 more than the number of levels in the list) */ ++ skiplist_node *header; /* pointer to header */ ++} skiplist; ++ ++void skiplist_init(skiplist_node *slnode); ++skiplist *new_skiplist(skiplist_node *slnode); ++void free_skiplist(skiplist *l); ++void skiplist_node_init(skiplist_node *node); ++void skiplist_insert(skiplist *l, skiplist_node *node, keyType key, valueType value, unsigned int randseed); ++void skiplist_delete(skiplist *l, skiplist_node *node); ++ ++static inline bool skiplist_node_empty(skiplist_node *node) { ++ return (!node->next[0]); ++} ++#endif /* _LINUX_SKIP_LISTS_H */ +diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h +index 22627f80063e..17077cd6fc40 100644 +--- a/include/uapi/linux/sched.h ++++ b/include/uapi/linux/sched.h +@@ -37,9 +37,16 @@ + #define SCHED_FIFO 1 + #define SCHED_RR 2 + #define SCHED_BATCH 3 +-/* SCHED_ISO: reserved but not implemented yet */ ++/* SCHED_ISO: Implemented on MuQSS only */ + #define SCHED_IDLE 5 ++#ifdef CONFIG_SCHED_MUQSS ++#define SCHED_ISO 4 ++#define SCHED_IDLEPRIO SCHED_IDLE ++#define SCHED_MAX (SCHED_IDLEPRIO) ++#define SCHED_RANGE(policy) ((policy) <= SCHED_MAX) ++#else /* CONFIG_SCHED_MUQSS */ + #define SCHED_DEADLINE 6 ++#endif /* CONFIG_SCHED_MUQSS */ + + /* Can be ORed in to make sure the process is reverted back to SCHED_NORMAL on fork */ + #define SCHED_RESET_ON_FORK 0x40000000 +diff --git a/init/Kconfig b/init/Kconfig +index ed9352513c32..f6b7f26ec002 100644 +--- a/init/Kconfig ++++ b/init/Kconfig +@@ -45,6 +45,18 @@ config THREAD_INFO_IN_TASK + + menu "General setup" + ++config SCHED_MUQSS ++ bool "MuQSS cpu scheduler" ++ select HIGH_RES_TIMERS ++ ---help--- ++ The Multiple Queue Skiplist Scheduler for excellent interactivity and ++ responsiveness on the desktop and highly scalable deterministic ++ low latency on any hardware. ++ ++ Say Y here. ++ default y ++ ++ + config BROKEN + bool + +@@ -680,6 +692,7 @@ config NUMA_BALANCING + depends on ARCH_SUPPORTS_NUMA_BALANCING + depends on !ARCH_WANT_NUMA_VARIABLE_LOCALITY + depends on SMP && NUMA && MIGRATION ++ depends on !SCHED_MUQSS + help + This option adds support for automatic NUMA aware memory/task placement. + The mechanism is quite primitive and is based on migrating memory when +@@ -787,9 +800,13 @@ menuconfig CGROUP_SCHED + help + This feature lets CPU scheduler recognize task groups and control CPU + bandwidth allocation to such task groups. It uses cgroups to group +- tasks. ++ tasks. In combination with MuQSS this is purely a STUB to create the ++ files associated with the CPU controller cgroup but most of the ++ controls do nothing. This is useful for working in environments and ++ with applications that will only work if this control group is ++ present. + +-if CGROUP_SCHED ++if CGROUP_SCHED && !SCHED_MUQSS + config FAIR_GROUP_SCHED + bool "Group scheduling for SCHED_OTHER" + depends on CGROUP_SCHED +@@ -896,6 +913,7 @@ config CGROUP_DEVICE + + config CGROUP_CPUACCT + bool "Simple CPU accounting controller" ++ depends on !SCHED_MUQSS + help + Provides a simple controller for monitoring the + total CPU consumed by the tasks in a cgroup. +@@ -1014,6 +1032,7 @@ config CHECKPOINT_RESTORE + + config SCHED_AUTOGROUP + bool "Automatic process group scheduling" ++ depends on !SCHED_MUQSS + select CGROUPS + select CGROUP_SCHED + select FAIR_GROUP_SCHED +diff --git a/init/init_task.c b/init/init_task.c +index 5aebe3be4d7c..2b576d3b2333 100644 +--- a/init/init_task.c ++++ b/init/init_task.c +@@ -67,9 +67,17 @@ struct task_struct init_task + .stack = init_stack, + .usage = ATOMIC_INIT(2), + .flags = PF_KTHREAD, ++#ifdef CONFIG_SCHED_MUQSS ++ .prio = NORMAL_PRIO, ++ .static_prio = MAX_PRIO-20, ++ .normal_prio = NORMAL_PRIO, ++ .deadline = 0, ++ .time_slice = 1000000, ++#else + .prio = MAX_PRIO - 20, + .static_prio = MAX_PRIO - 20, + .normal_prio = MAX_PRIO - 20, ++#endif + .policy = SCHED_NORMAL, + .cpus_allowed = CPU_MASK_ALL, + .nr_cpus_allowed= NR_CPUS, +@@ -78,6 +86,7 @@ struct task_struct init_task + .restart_block = { + .fn = do_no_restart_syscall, + }, ++#ifndef CONFIG_SCHED_MUQSS + .se = { + .group_node = LIST_HEAD_INIT(init_task.se.group_node), + }, +@@ -85,6 +94,7 @@ struct task_struct init_task + .run_list = LIST_HEAD_INIT(init_task.rt.run_list), + .time_slice = RR_TIMESLICE, + }, ++#endif + .tasks = LIST_HEAD_INIT(init_task.tasks), + #ifdef CONFIG_SMP + .pushable_tasks = PLIST_NODE_INIT(init_task.pushable_tasks, MAX_PRIO), +diff --git a/init/main.c b/init/main.c +index ee147103ba1b..82ae377e8fab 100644 +--- a/init/main.c ++++ b/init/main.c +@@ -1086,6 +1086,8 @@ static int __ref kernel_init(void *unused) + + rcu_end_inkernel_boot(); + ++ print_scheduler_version(); ++ + if (ramdisk_execute_command) { + ret = run_init_process(ramdisk_execute_command); + if (!ret) +diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz +index 2a202a846757..1806fcac8f14 100644 +--- a/kernel/Kconfig.hz ++++ b/kernel/Kconfig.hz +@@ -4,7 +4,8 @@ + + choice + prompt "Timer frequency" +- default HZ_250 ++ default HZ_100 if SCHED_MUQSS ++ default HZ_250_NODEF if !SCHED_MUQSS + help + Allows the configuration of the timer frequency. It is customary + to have the timer interrupt run at 1000 Hz but 100 Hz may be more +@@ -19,11 +20,18 @@ choice + config HZ_100 + bool "100 HZ" + help ++ 100 Hz is a suitable choice in combination with MuQSS which does ++ not rely on ticks for rescheduling interrupts, and is not Hz limited ++ for timeouts and sleeps from both the kernel and userspace. ++ This allows us to benefit from the lower overhead and higher ++ throughput of fewer timer ticks. ++ ++ Non-MuQSS kernels: + 100 Hz is a typical choice for servers, SMP and NUMA systems + with lots of processors that may show reduced performance if + too many timer interrupts are occurring. + +- config HZ_250 ++ config HZ_250_NODEF + bool "250 HZ" + help + 250 Hz is a good compromise choice allowing server performance +@@ -31,7 +39,10 @@ choice + on SMP and NUMA systems. If you are going to be using NTSC video + or multimedia, selected 300Hz instead. + +- config HZ_300 ++ 250 Hz is the default choice for the mainline scheduler but not ++ advantageous in combination with MuQSS. ++ ++ config HZ_300_NODEF + bool "300 HZ" + help + 300 Hz is a good compromise choice allowing server performance +@@ -39,7 +50,7 @@ choice + on SMP and NUMA systems and exactly dividing by both PAL and + NTSC frame rates for video and multimedia work. + +- config HZ_1000 ++ config HZ_1000_NODEF + bool "1000 HZ" + help + 1000 Hz is the preferred choice for desktop systems and other +@@ -50,9 +61,9 @@ endchoice + config HZ + int + default 100 if HZ_100 +- default 250 if HZ_250 +- default 300 if HZ_300 +- default 1000 if HZ_1000 ++ default 250 if HZ_250_NODEF ++ default 300 if HZ_300_NODEF ++ default 1000 if HZ_1000_NODEF + + config SCHED_HRTICK + def_bool HIGH_RES_TIMERS +diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt +index cd1655122ec0..9cf10230d5fb 100644 +--- a/kernel/Kconfig.preempt ++++ b/kernel/Kconfig.preempt +@@ -1,7 +1,7 @@ + + choice + prompt "Preemption Model" +- default PREEMPT_NONE ++ default PREEMPT + + config PREEMPT_NONE + bool "No Forced Preemption (Server)" +@@ -17,7 +17,7 @@ config PREEMPT_NONE + latencies. + + config PREEMPT_VOLUNTARY +- bool "Voluntary Kernel Preemption (Desktop)" ++ bool "Voluntary Kernel Preemption (Nothing)" + depends on !ARCH_NO_PREEMPT + help + This option reduces the latency of the kernel by adding more +@@ -32,7 +32,8 @@ config PREEMPT_VOLUNTARY + applications to run more 'smoothly' even when the system is + under load. + +- Select this if you are building a kernel for a desktop system. ++ Select this for no system in particular (choose Preemptible ++ instead on a desktop if you know what's good for you). + + config PREEMPT + bool "Preemptible Kernel (Low-Latency Desktop)" +@@ -57,4 +58,4 @@ config PREEMPT + endchoice + + config PREEMPT_COUNT +- bool +\ No newline at end of file ++ bool +diff --git a/kernel/Makefile b/kernel/Makefile +index 7343b3a9bff0..43ef9cdfad51 100644 +--- a/kernel/Makefile ++++ b/kernel/Makefile +@@ -10,7 +10,7 @@ obj-y = fork.o exec_domain.o panic.o \ + extable.o params.o \ + kthread.o sys_ni.o nsproxy.o \ + notifier.o ksysfs.o cred.o reboot.o \ +- async.o range.o smpboot.o ucount.o ++ async.o range.o smpboot.o ucount.o skip_list.o + + obj-$(CONFIG_MODULES) += kmod.o + obj-$(CONFIG_MULTIUSER) += groups.o +diff --git a/kernel/delayacct.c b/kernel/delayacct.c +index 2a12b988c717..dba268ca115f 100644 +--- a/kernel/delayacct.c ++++ b/kernel/delayacct.c +@@ -115,7 +115,7 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) + */ + t1 = tsk->sched_info.pcount; + t2 = tsk->sched_info.run_delay; +- t3 = tsk->se.sum_exec_runtime; ++ t3 = tsk_seruntime(tsk); + + d->cpu_count += t1; + +diff --git a/kernel/exit.c b/kernel/exit.c +index 0e21e6d21f35..81d3e2a398d3 100644 +--- a/kernel/exit.c ++++ b/kernel/exit.c +@@ -130,7 +130,7 @@ static void __exit_signal(struct task_struct *tsk) + sig->curr_target = next_thread(tsk); + } + +- add_device_randomness((const void*) &tsk->se.sum_exec_runtime, ++ add_device_randomness((const void*) &tsk_seruntime(tsk), + sizeof(unsigned long long)); + + /* +@@ -151,7 +151,7 @@ static void __exit_signal(struct task_struct *tsk) + sig->inblock += task_io_get_inblock(tsk); + sig->oublock += task_io_get_oublock(tsk); + task_io_accounting_add(&sig->ioac, &tsk->ioac); +- sig->sum_sched_runtime += tsk->se.sum_exec_runtime; ++ sig->sum_sched_runtime += tsk_seruntime(tsk); + sig->nr_threads--; + __unhash_process(tsk, group_dead); + write_sequnlock(&sig->stats_lock); +diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig +index 5f3e2baefca9..de3e5740679b 100644 +--- a/kernel/irq/Kconfig ++++ b/kernel/irq/Kconfig +@@ -107,6 +107,23 @@ config GENERIC_IRQ_RESERVATION_MODE + config IRQ_FORCED_THREADING + bool + ++config FORCE_IRQ_THREADING ++ bool "Make IRQ threading compulsory" ++ depends on IRQ_FORCED_THREADING ++ default n ++ ---help--- ++ ++ Make IRQ threading mandatory for any IRQ handlers that support it ++ instead of being optional and requiring the threadirqs kernel ++ parameter. Instead they can be optionally disabled with the ++ nothreadirqs kernel parameter. ++ ++ Enabling this may make some architectures not boot with runqueue ++ sharing and MuQSS. ++ ++ Enable if you are building for a desktop or low latency system, ++ otherwise say N. ++ + config SPARSE_IRQ + bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ + ---help--- +diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c +index 9dbdccab3b6a..fa7821e0221e 100644 +--- a/kernel/irq/manage.c ++++ b/kernel/irq/manage.c +@@ -23,9 +23,20 @@ + #include "internals.h" + + #ifdef CONFIG_IRQ_FORCED_THREADING ++#ifdef CONFIG_FORCE_IRQ_THREADING ++__read_mostly bool force_irqthreads = true; ++#else + __read_mostly bool force_irqthreads; ++#endif + EXPORT_SYMBOL_GPL(force_irqthreads); + ++static int __init setup_noforced_irqthreads(char *arg) ++{ ++ force_irqthreads = false; ++ return 0; ++} ++early_param("nothreadirqs", setup_noforced_irqthreads); ++ + static int __init setup_forced_irqthreads(char *arg) + { + force_irqthreads = true; +diff --git a/kernel/kthread.c b/kernel/kthread.c +index 087d18d771b5..fdddd187774a 100644 +--- a/kernel/kthread.c ++++ b/kernel/kthread.c +@@ -424,6 +424,34 @@ void kthread_bind(struct task_struct *p, unsigned int cpu) + } + EXPORT_SYMBOL(kthread_bind); + ++#if defined(CONFIG_SCHED_MUQSS) && defined(CONFIG_SMP) ++extern void __do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask); ++ ++/* ++ * new_kthread_bind is a special variant of __kthread_bind_mask. ++ * For new threads to work on muqss we want to call do_set_cpus_allowed ++ * without the task_cpu being set and the task rescheduled until they're ++ * rescheduled on their own so we call __do_set_cpus_allowed directly which ++ * only changes the cpumask. This is particularly important for smpboot threads ++ * to work. ++ */ ++static void new_kthread_bind(struct task_struct *p, unsigned int cpu) ++{ ++ unsigned long flags; ++ ++ if (WARN_ON(!wait_task_inactive(p, TASK_UNINTERRUPTIBLE))) ++ return; ++ ++ /* It's safe because the task is inactive. */ ++ raw_spin_lock_irqsave(&p->pi_lock, flags); ++ __do_set_cpus_allowed(p, cpumask_of(cpu)); ++ p->flags |= PF_NO_SETAFFINITY; ++ raw_spin_unlock_irqrestore(&p->pi_lock, flags); ++} ++#else ++#define new_kthread_bind(p, cpu) kthread_bind(p, cpu) ++#endif ++ + /** + * kthread_create_on_cpu - Create a cpu bound kthread + * @threadfn: the function to run until signal_pending(current). +@@ -445,7 +473,7 @@ struct task_struct *kthread_create_on_cpu(int (*threadfn)(void *data), + cpu); + if (IS_ERR(p)) + return p; +- kthread_bind(p, cpu); ++ new_kthread_bind(p, cpu); + /* CPU hotplug need to bind once again when unparking the thread. */ + set_bit(KTHREAD_IS_PER_CPU, &to_kthread(p)->flags); + to_kthread(p)->cpu = cpu; +diff --git a/kernel/livepatch/transition.c b/kernel/livepatch/transition.c +index 5bc349805e03..5572917ed7ce 100644 +--- a/kernel/livepatch/transition.c ++++ b/kernel/livepatch/transition.c +@@ -298,7 +298,7 @@ static int klp_check_stack(struct task_struct *task, char *err_buf) + static bool klp_try_switch_task(struct task_struct *task) + { + struct rq *rq; +- struct rq_flags flags; ++ struct rq_flags rf; + int ret; + bool success = false; + char err_buf[STACK_ERR_BUF_SIZE]; +@@ -314,7 +314,7 @@ static bool klp_try_switch_task(struct task_struct *task) + * functions. If all goes well, switch the task to the target patch + * state. + */ +- rq = task_rq_lock(task, &flags); ++ rq = task_rq_lock(task, &rf); + + if (task_running(rq, task) && task != current) { + snprintf(err_buf, STACK_ERR_BUF_SIZE, +@@ -333,7 +333,7 @@ static bool klp_try_switch_task(struct task_struct *task) + task->patch_state = klp_target_state; + + done: +- task_rq_unlock(rq, task, &flags); ++ task_rq_unlock(rq, task, &rf); + + /* + * Due to console deadlock issues, pr_debug() can't be used while +diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig +index 939a2056c87a..242f7e491e8d 100644 +--- a/kernel/rcu/Kconfig ++++ b/kernel/rcu/Kconfig +@@ -93,7 +93,7 @@ config CONTEXT_TRACKING + config CONTEXT_TRACKING_FORCE + bool "Force context tracking" + depends on CONTEXT_TRACKING +- default y if !NO_HZ_FULL ++ default y if !NO_HZ_FULL && !SCHED_MUQSS + help + The major pre-requirement for full dynticks to work is to + support the context tracking subsystem. But there are also +diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile +index 21fb5a5662b5..ced9f319a02f 100644 +--- a/kernel/sched/Makefile ++++ b/kernel/sched/Makefile +@@ -16,6 +16,18 @@ ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y) + CFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointer + endif + ++ifdef CONFIG_SCHED_MUQSS ++obj-y += MuQSS.o clock.o cputime.o ++obj-y += idle.o ++obj-y += wait.o wait_bit.o swait.o completion.o ++ ++obj-$(CONFIG_SMP) += topology.o ++obj-$(CONFIG_SCHEDSTATS) += stats.o ++obj-$(CONFIG_CPU_FREQ) += cpufreq.o ++obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o ++obj-$(CONFIG_CPU_ISOLATION) += isolation.o ++obj-$(CONFIG_PSI) += psi.o ++else + obj-y += core.o loadavg.o clock.o cputime.o + obj-y += idle.o fair.o rt.o deadline.o + obj-y += wait.o wait_bit.o swait.o completion.o +@@ -30,3 +42,4 @@ obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o + obj-$(CONFIG_MEMBARRIER) += membarrier.o + obj-$(CONFIG_CPU_ISOLATION) += isolation.o + obj-$(CONFIG_PSI) += psi.o ++endif +diff --git a/kernel/sched/MuQSS.c b/kernel/sched/MuQSS.c +new file mode 100644 +index 000000000000..e8610b659791 +--- /dev/null ++++ b/kernel/sched/MuQSS.c +@@ -0,0 +1,7437 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* ++ * kernel/sched/MuQSS.c, was kernel/sched.c ++ * ++ * Kernel scheduler and related syscalls ++ * ++ * Copyright (C) 1991-2002 Linus Torvalds ++ * ++ * 1996-12-23 Modified by Dave Grothe to fix bugs in semaphores and ++ * make semaphores SMP safe ++ * 1998-11-19 Implemented schedule_timeout() and related stuff ++ * by Andrea Arcangeli ++ * 2002-01-04 New ultra-scalable O(1) scheduler by Ingo Molnar: ++ * hybrid priority-list and round-robin design with ++ * an array-switch method of distributing timeslices ++ * and per-CPU runqueues. Cleanups and useful suggestions ++ * by Davide Libenzi, preemptible kernel bits by Robert Love. ++ * 2003-09-03 Interactivity tuning by Con Kolivas. ++ * 2004-04-02 Scheduler domains code by Nick Piggin ++ * 2007-04-15 Work begun on replacing all interactivity tuning with a ++ * fair scheduling design by Con Kolivas. ++ * 2007-05-05 Load balancing (smp-nice) and other improvements ++ * by Peter Williams ++ * 2007-05-06 Interactivity improvements to CFS by Mike Galbraith ++ * 2007-07-01 Group scheduling enhancements by Srivatsa Vaddagiri ++ * 2007-11-29 RT balancing improvements by Steven Rostedt, Gregory Haskins, ++ * Thomas Gleixner, Mike Kravetz ++ * 2009-08-13 Brainfuck deadline scheduling policy by Con Kolivas deletes ++ * a whole lot of those previous things. ++ * 2016-10-01 Multiple Queue Skiplist Scheduler scalable evolution of BFS ++ * scheduler by Con Kolivas. ++ */ ++ ++#include ++#include ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++#include ++#include ++ ++#include "../workqueue_internal.h" ++#include "../smpboot.h" ++ ++#define CREATE_TRACE_POINTS ++#include ++ ++#include "MuQSS.h" ++ ++#define rt_prio(prio) unlikely((prio) < MAX_RT_PRIO) ++#define rt_task(p) rt_prio((p)->prio) ++#define batch_task(p) (unlikely((p)->policy == SCHED_BATCH)) ++#define is_rt_policy(policy) ((policy) == SCHED_FIFO || \ ++ (policy) == SCHED_RR) ++#define has_rt_policy(p) unlikely(is_rt_policy((p)->policy)) ++ ++#define is_idle_policy(policy) ((policy) == SCHED_IDLEPRIO) ++#define idleprio_task(p) unlikely(is_idle_policy((p)->policy)) ++#define task_running_idle(p) unlikely((p)->prio == IDLE_PRIO) ++ ++#define is_iso_policy(policy) ((policy) == SCHED_ISO) ++#define iso_task(p) unlikely(is_iso_policy((p)->policy)) ++#define task_running_iso(p) unlikely((p)->prio == ISO_PRIO) ++ ++#define rq_idle(rq) ((rq)->rq_prio == PRIO_LIMIT) ++ ++#define ISO_PERIOD (5 * HZ) ++ ++#define STOP_PRIO (MAX_RT_PRIO - 1) ++ ++/* ++ * Some helpers for converting to/from various scales. Use shifts to get ++ * approximate multiples of ten for less overhead. ++ */ ++#define APPROX_NS_PS (1073741824) /* Approximate ns per second */ ++#define JIFFIES_TO_NS(TIME) ((TIME) * (APPROX_NS_PS / HZ)) ++#define JIFFY_NS (APPROX_NS_PS / HZ) ++#define JIFFY_US (1048576 / HZ) ++#define NS_TO_JIFFIES(TIME) ((TIME) / JIFFY_NS) ++#define HALF_JIFFY_NS (APPROX_NS_PS / HZ / 2) ++#define HALF_JIFFY_US (1048576 / HZ / 2) ++#define MS_TO_NS(TIME) ((TIME) << 20) ++#define MS_TO_US(TIME) ((TIME) << 10) ++#define NS_TO_MS(TIME) ((TIME) >> 20) ++#define NS_TO_US(TIME) ((TIME) >> 10) ++#define US_TO_NS(TIME) ((TIME) << 10) ++#define TICK_APPROX_NS ((APPROX_NS_PS+HZ/2)/HZ) ++ ++#define RESCHED_US (100) /* Reschedule if less than this many μs left */ ++ ++void print_scheduler_version(void) ++{ ++ printk(KERN_INFO "MuQSS CPU scheduler v0.185 by Con Kolivas.\n"); ++} ++ ++#define RQSHARE_NONE 0 ++#define RQSHARE_SMT 1 ++#define RQSHARE_MC 2 ++#define RQSHARE_SMP 3 ++#define RQSHARE_ALL 4 ++ ++/* ++ * This determines what level of runqueue sharing will be done and is ++ * configurable at boot time with the bootparam rqshare = ++ */ ++static int rqshare __read_mostly = CONFIG_SHARERQ; /* Default RQSHARE_MC */ ++ ++static int __init set_rqshare(char *str) ++{ ++ if (!strncmp(str, "none", 4)) { ++ rqshare = RQSHARE_NONE; ++ return 0; ++ } ++ if (!strncmp(str, "smt", 3)) { ++ rqshare = RQSHARE_SMT; ++ return 0; ++ } ++ if (!strncmp(str, "mc", 2)) { ++ rqshare = RQSHARE_MC; ++ return 0; ++ } ++ if (!strncmp(str, "smp", 3)) { ++ rqshare = RQSHARE_SMP; ++ return 0; ++ } ++ if (!strncmp(str, "all", 3)) { ++ rqshare = RQSHARE_ALL; ++ return 0; ++ } ++ return 1; ++} ++__setup("rqshare=", set_rqshare); ++ ++/* ++ * This is the time all tasks within the same priority round robin. ++ * Value is in ms and set to a minimum of 6ms. ++ * Tunable via /proc interface. ++ */ ++int rr_interval __read_mostly = 6; ++ ++/* ++ * Tunable to choose whether to prioritise latency or throughput, simple ++ * binary yes or no ++ */ ++int sched_interactive __read_mostly = 1; ++ ++/* ++ * sched_iso_cpu - sysctl which determines the cpu percentage SCHED_ISO tasks ++ * are allowed to run five seconds as real time tasks. This is the total over ++ * all online cpus. ++ */ ++int sched_iso_cpu __read_mostly = 70; ++ ++/* ++ * sched_yield_type - Choose what sort of yield sched_yield will perform. ++ * 0: No yield. ++ * 1: Yield only to better priority/deadline tasks. (default) ++ * 2: Expire timeslice and recalculate deadline. ++ */ ++int sched_yield_type __read_mostly = 1; ++ ++/* ++ * The relative length of deadline for each priority(nice) level. ++ */ ++static int prio_ratios[NICE_WIDTH] __read_mostly; ++ ++ ++/* ++ * The quota handed out to tasks of all priority levels when refilling their ++ * time_slice. ++ */ ++static inline int timeslice(void) ++{ ++ return MS_TO_US(rr_interval); ++} ++ ++DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); ++ ++#ifdef CONFIG_SMP ++/* ++ * Total number of runqueues. Equals number of CPUs when there is no runqueue ++ * sharing but is usually less with SMT/MC sharing of runqueues. ++ */ ++static int total_runqueues __read_mostly = 1; ++ ++static cpumask_t cpu_idle_map ____cacheline_aligned_in_smp; ++ ++struct rq *cpu_rq(int cpu) ++{ ++ return &per_cpu(runqueues, (cpu)); ++} ++#define cpu_curr(cpu) (cpu_rq(cpu)->curr) ++ ++/* ++ * For asym packing, by default the lower numbered cpu has higher priority. ++ */ ++int __weak arch_asym_cpu_priority(int cpu) ++{ ++ return -cpu; ++} ++ ++int __weak arch_sd_sibling_asym_packing(void) ++{ ++ return 0*SD_ASYM_PACKING; ++} ++ ++#ifdef CONFIG_SCHED_SMT ++DEFINE_STATIC_KEY_FALSE(sched_smt_present); ++#endif ++ ++#else ++struct rq *uprq; ++#endif /* CONFIG_SMP */ ++ ++#include "stats.h" ++ ++/* ++ * All common locking functions performed on rq->lock. rq->clock is local to ++ * the CPU accessing it so it can be modified just with interrupts disabled ++ * when we're not updating niffies. ++ * Looking up task_rq must be done under rq->lock to be safe. ++ */ ++ ++/* ++ * RQ-clock updating methods: ++ */ ++ ++#ifdef HAVE_SCHED_AVG_IRQ ++static void update_irq_load_avg(struct rq *rq, long delta); ++#else ++static inline void update_irq_load_avg(struct rq *rq, long delta) {} ++#endif ++ ++static void update_rq_clock_task(struct rq *rq, s64 delta) ++{ ++/* ++ * In theory, the compile should just see 0 here, and optimize out the call ++ * to sched_rt_avg_update. But I don't trust it... ++ */ ++ s64 __maybe_unused steal = 0, irq_delta = 0; ++#ifdef CONFIG_IRQ_TIME_ACCOUNTING ++ irq_delta = irq_time_read(cpu_of(rq)) - rq->prev_irq_time; ++ ++ /* ++ * Since irq_time is only updated on {soft,}irq_exit, we might run into ++ * this case when a previous update_rq_clock() happened inside a ++ * {soft,}irq region. ++ * ++ * When this happens, we stop ->clock_task and only update the ++ * prev_irq_time stamp to account for the part that fit, so that a next ++ * update will consume the rest. This ensures ->clock_task is ++ * monotonic. ++ * ++ * It does however cause some slight miss-attribution of {soft,}irq ++ * time, a more accurate solution would be to update the irq_time using ++ * the current rq->clock timestamp, except that would require using ++ * atomic ops. ++ */ ++ if (irq_delta > delta) ++ irq_delta = delta; ++ ++ rq->prev_irq_time += irq_delta; ++ delta -= irq_delta; ++#endif ++#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING ++ if (static_key_false((¶virt_steal_rq_enabled))) { ++ steal = paravirt_steal_clock(cpu_of(rq)); ++ steal -= rq->prev_steal_time_rq; ++ ++ if (unlikely(steal > delta)) ++ steal = delta; ++ ++ rq->prev_steal_time_rq += steal; ++ delta -= steal; ++ } ++#endif ++ rq->clock_task += delta; ++ ++#ifdef CONFIG_HAVE_SCHED_AVG_IRQ ++ if (irq_delta + steal) ++ update_irq_load_avg(rq, irq_delta + steal); ++#endif ++} ++ ++static inline void update_rq_clock(struct rq *rq) ++{ ++ s64 delta = sched_clock_cpu(cpu_of(rq)) - rq->clock; ++ ++ if (unlikely(delta < 0)) ++ return; ++ rq->clock += delta; ++ update_rq_clock_task(rq, delta); ++} ++ ++/* ++ * Niffies are a globally increasing nanosecond counter. They're only used by ++ * update_load_avg and time_slice_expired, however deadlines are based on them ++ * across CPUs. Update them whenever we will call one of those functions, and ++ * synchronise them across CPUs whenever we hold both runqueue locks. ++ */ ++static inline void update_clocks(struct rq *rq) ++{ ++ s64 ndiff, minndiff; ++ long jdiff; ++ ++ update_rq_clock(rq); ++ ndiff = rq->clock - rq->old_clock; ++ rq->old_clock = rq->clock; ++ jdiff = jiffies - rq->last_jiffy; ++ ++ /* Subtract any niffies added by balancing with other rqs */ ++ ndiff -= rq->niffies - rq->last_niffy; ++ minndiff = JIFFIES_TO_NS(jdiff) - rq->niffies + rq->last_jiffy_niffies; ++ if (minndiff < 0) ++ minndiff = 0; ++ ndiff = max(ndiff, minndiff); ++ rq->niffies += ndiff; ++ rq->last_niffy = rq->niffies; ++ if (jdiff) { ++ rq->last_jiffy += jdiff; ++ rq->last_jiffy_niffies = rq->niffies; ++ } ++} ++ ++/* ++ * Any time we have two runqueues locked we use that as an opportunity to ++ * synchronise niffies to the highest value as idle ticks may have artificially ++ * kept niffies low on one CPU and the truth can only be later. ++ */ ++static inline void synchronise_niffies(struct rq *rq1, struct rq *rq2) ++{ ++ if (rq1->niffies > rq2->niffies) ++ rq2->niffies = rq1->niffies; ++ else ++ rq1->niffies = rq2->niffies; ++} ++ ++/* ++ * double_rq_lock - safely lock two runqueues ++ * ++ * Note this does not disable interrupts like task_rq_lock, ++ * you need to do so manually before calling. ++ */ ++ ++/* For when we know rq1 != rq2 */ ++static inline void __double_rq_lock(struct rq *rq1, struct rq *rq2) ++ __acquires(rq1->lock) ++ __acquires(rq2->lock) ++{ ++ if (rq1 < rq2) { ++ raw_spin_lock(rq1->lock); ++ raw_spin_lock_nested(rq2->lock, SINGLE_DEPTH_NESTING); ++ } else { ++ raw_spin_lock(rq2->lock); ++ raw_spin_lock_nested(rq1->lock, SINGLE_DEPTH_NESTING); ++ } ++} ++ ++static inline void double_rq_lock(struct rq *rq1, struct rq *rq2) ++ __acquires(rq1->lock) ++ __acquires(rq2->lock) ++{ ++ BUG_ON(!irqs_disabled()); ++ if (rq1->lock == rq2->lock) { ++ raw_spin_lock(rq1->lock); ++ __acquire(rq2->lock); /* Fake it out ;) */ ++ } else ++ __double_rq_lock(rq1, rq2); ++ synchronise_niffies(rq1, rq2); ++} ++ ++/* ++ * double_rq_unlock - safely unlock two runqueues ++ * ++ * Note this does not restore interrupts like task_rq_unlock, ++ * you need to do so manually after calling. ++ */ ++static inline void double_rq_unlock(struct rq *rq1, struct rq *rq2) ++ __releases(rq1->lock) ++ __releases(rq2->lock) ++{ ++ raw_spin_unlock(rq1->lock); ++ if (rq1->lock != rq2->lock) ++ raw_spin_unlock(rq2->lock); ++ else ++ __release(rq2->lock); ++} ++ ++static inline void lock_all_rqs(void) ++{ ++ int cpu; ++ ++ preempt_disable(); ++ for_each_possible_cpu(cpu) { ++ struct rq *rq = cpu_rq(cpu); ++ ++ do_raw_spin_lock(rq->lock); ++ } ++} ++ ++static inline void unlock_all_rqs(void) ++{ ++ int cpu; ++ ++ for_each_possible_cpu(cpu) { ++ struct rq *rq = cpu_rq(cpu); ++ ++ do_raw_spin_unlock(rq->lock); ++ } ++ preempt_enable(); ++} ++ ++/* Specially nest trylock an rq */ ++static inline bool trylock_rq(struct rq *this_rq, struct rq *rq) ++{ ++ if (unlikely(!do_raw_spin_trylock(rq->lock))) ++ return false; ++ spin_acquire(rq->lock.dep_map, SINGLE_DEPTH_NESTING, 1, _RET_IP_); ++ synchronise_niffies(this_rq, rq); ++ return true; ++} ++ ++/* Unlock a specially nested trylocked rq */ ++static inline void unlock_rq(struct rq *rq) ++{ ++ spin_release(rq->lock.dep_map, 1, _RET_IP_); ++ do_raw_spin_unlock(rq->lock); ++} ++ ++/* ++ * cmpxchg based fetch_or, macro so it works for different integer types ++ */ ++#define fetch_or(ptr, mask) \ ++ ({ \ ++ typeof(ptr) _ptr = (ptr); \ ++ typeof(mask) _mask = (mask); \ ++ typeof(*_ptr) _old, _val = *_ptr; \ ++ \ ++ for (;;) { \ ++ _old = cmpxchg(_ptr, _val, _val | _mask); \ ++ if (_old == _val) \ ++ break; \ ++ _val = _old; \ ++ } \ ++ _old; \ ++}) ++ ++#if defined(CONFIG_SMP) && defined(TIF_POLLING_NRFLAG) ++/* ++ * Atomically set TIF_NEED_RESCHED and test for TIF_POLLING_NRFLAG, ++ * this avoids any races wrt polling state changes and thereby avoids ++ * spurious IPIs. ++ */ ++static bool set_nr_and_not_polling(struct task_struct *p) ++{ ++ struct thread_info *ti = task_thread_info(p); ++ return !(fetch_or(&ti->flags, _TIF_NEED_RESCHED) & _TIF_POLLING_NRFLAG); ++} ++ ++/* ++ * Atomically set TIF_NEED_RESCHED if TIF_POLLING_NRFLAG is set. ++ * ++ * If this returns true, then the idle task promises to call ++ * sched_ttwu_pending() and reschedule soon. ++ */ ++static bool set_nr_if_polling(struct task_struct *p) ++{ ++ struct thread_info *ti = task_thread_info(p); ++ typeof(ti->flags) old, val = READ_ONCE(ti->flags); ++ ++ for (;;) { ++ if (!(val & _TIF_POLLING_NRFLAG)) ++ return false; ++ if (val & _TIF_NEED_RESCHED) ++ return true; ++ old = cmpxchg(&ti->flags, val, val | _TIF_NEED_RESCHED); ++ if (old == val) ++ break; ++ val = old; ++ } ++ return true; ++} ++ ++#else ++static bool set_nr_and_not_polling(struct task_struct *p) ++{ ++ set_tsk_need_resched(p); ++ return true; ++} ++ ++#ifdef CONFIG_SMP ++static bool set_nr_if_polling(struct task_struct *p) ++{ ++ return false; ++} ++#endif ++#endif ++ ++void wake_q_add(struct wake_q_head *head, struct task_struct *task) ++{ ++ struct wake_q_node *node = &task->wake_q; ++ ++ /* ++ * Atomically grab the task, if ->wake_q is !nil already it means ++ * its already queued (either by us or someone else) and will get the ++ * wakeup due to that. ++ * ++ * This cmpxchg() executes a full barrier, which pairs with the full ++ * barrier executed by the wakeup in wake_up_q(). ++ */ ++ if (cmpxchg(&node->next, NULL, WAKE_Q_TAIL)) ++ return; ++ ++ get_task_struct(task); ++ ++ /* ++ * The head is context local, there can be no concurrency. ++ */ ++ *head->lastp = node; ++ head->lastp = &node->next; ++} ++ ++void wake_up_q(struct wake_q_head *head) ++{ ++ struct wake_q_node *node = head->first; ++ ++ while (node != WAKE_Q_TAIL) { ++ struct task_struct *task; ++ ++ task = container_of(node, struct task_struct, wake_q); ++ BUG_ON(!task); ++ /* Task can safely be re-inserted now */ ++ node = node->next; ++ task->wake_q.next = NULL; ++ ++ /* ++ * wake_up_process() executes a full barrier, which pairs with ++ * the queueing in wake_q_add() so as not to miss wakeups. ++ */ ++ wake_up_process(task); ++ put_task_struct(task); ++ } ++} ++ ++static inline void smp_sched_reschedule(int cpu) ++{ ++ if (likely(cpu_online(cpu))) ++ smp_send_reschedule(cpu); ++} ++ ++/* ++ * resched_task - mark a task 'to be rescheduled now'. ++ * ++ * On UP this means the setting of the need_resched flag, on SMP it ++ * might also involve a cross-CPU call to trigger the scheduler on ++ * the target CPU. ++ */ ++void resched_task(struct task_struct *p) ++{ ++ int cpu; ++#ifdef CONFIG_LOCKDEP ++ /* Kernel threads call this when creating workqueues while still ++ * inactive from __kthread_bind_mask, holding only the pi_lock */ ++ if (!(p->flags & PF_KTHREAD)) { ++ struct rq *rq = task_rq(p); ++ ++ lockdep_assert_held(rq->lock); ++ } ++#endif ++ if (test_tsk_need_resched(p)) ++ return; ++ ++ cpu = task_cpu(p); ++ if (cpu == smp_processor_id()) { ++ set_tsk_need_resched(p); ++ set_preempt_need_resched(); ++ return; ++ } ++ ++ if (set_nr_and_not_polling(p)) ++ smp_sched_reschedule(cpu); ++ else ++ trace_sched_wake_idle_without_ipi(cpu); ++} ++ ++/* ++ * A task that is not running or queued will not have a node set. ++ * A task that is queued but not running will have a node set. ++ * A task that is currently running will have ->on_cpu set but no node set. ++ */ ++static inline bool task_queued(struct task_struct *p) ++{ ++ return !skiplist_node_empty(&p->node); ++} ++ ++static void enqueue_task(struct rq *rq, struct task_struct *p, int flags); ++static inline void resched_if_idle(struct rq *rq); ++ ++/* Dodgy workaround till we figure out where the softirqs are going */ ++static inline void do_pending_softirq(struct rq *rq, struct task_struct *next) ++{ ++ if (unlikely(next == rq->idle && local_softirq_pending() && !in_interrupt())) ++ do_softirq_own_stack(); ++} ++ ++static inline bool deadline_before(u64 deadline, u64 time) ++{ ++ return (deadline < time); ++} ++ ++/* ++ * Deadline is "now" in niffies + (offset by priority). Setting the deadline ++ * is the key to everything. It distributes cpu fairly amongst tasks of the ++ * same nice value, it proportions cpu according to nice level, it means the ++ * task that last woke up the longest ago has the earliest deadline, thus ++ * ensuring that interactive tasks get low latency on wake up. The CPU ++ * proportion works out to the square of the virtual deadline difference, so ++ * this equation will give nice 19 3% CPU compared to nice 0. ++ */ ++static inline u64 prio_deadline_diff(int user_prio) ++{ ++ return (prio_ratios[user_prio] * rr_interval * (MS_TO_NS(1) / 128)); ++} ++ ++static inline u64 task_deadline_diff(struct task_struct *p) ++{ ++ return prio_deadline_diff(TASK_USER_PRIO(p)); ++} ++ ++static inline u64 static_deadline_diff(int static_prio) ++{ ++ return prio_deadline_diff(USER_PRIO(static_prio)); ++} ++ ++static inline int longest_deadline_diff(void) ++{ ++ return prio_deadline_diff(39); ++} ++ ++static inline int ms_longest_deadline_diff(void) ++{ ++ return NS_TO_MS(longest_deadline_diff()); ++} ++ ++static inline bool rq_local(struct rq *rq); ++ ++#ifndef SCHED_CAPACITY_SCALE ++#define SCHED_CAPACITY_SCALE 1024 ++#endif ++ ++static inline int rq_load(struct rq *rq) ++{ ++ return rq->nr_running; ++} ++ ++/* ++ * Update the load average for feeding into cpu frequency governors. Use a ++ * rough estimate of a rolling average with ~ time constant of 32ms. ++ * 80/128 ~ 0.63. * 80 / 32768 / 128 == * 5 / 262144 ++ * Make sure a call to update_clocks has been made before calling this to get ++ * an updated rq->niffies. ++ */ ++static void update_load_avg(struct rq *rq, unsigned int flags) ++{ ++ long us_interval, load; ++ unsigned long curload; ++ ++ us_interval = NS_TO_US(rq->niffies - rq->load_update); ++ if (unlikely(us_interval <= 0)) ++ return; ++ ++ curload = rq_load(rq); ++ load = rq->load_avg - (rq->load_avg * us_interval * 5 / 262144); ++ if (unlikely(load < 0)) ++ load = 0; ++ load += curload * curload * SCHED_CAPACITY_SCALE * us_interval * 5 / 262144; ++ rq->load_avg = load; ++ ++ rq->load_update = rq->niffies; ++ update_irq_load_avg(rq, 0); ++ if (likely(rq_local(rq))) ++ cpufreq_trigger(rq, flags); ++} ++ ++#ifdef HAVE_SCHED_AVG_IRQ ++/* ++ * IRQ variant of update_load_avg below. delta is actually time in nanoseconds ++ * here so we scale curload to how long it's been since the last update. ++ */ ++static void update_irq_load_avg(struct rq *rq, long delta) ++{ ++ long us_interval, load; ++ unsigned long curload; ++ ++ us_interval = NS_TO_US(rq->niffies - rq->irq_load_update); ++ if (unlikely(us_interval <= 0)) ++ return; ++ ++ curload = NS_TO_US(delta) / us_interval; ++ load = rq->irq_load_avg - (rq->irq_load_avg * us_interval * 5 / 262144); ++ if (unlikely(load < 0)) ++ load = 0; ++ load += curload * curload * SCHED_CAPACITY_SCALE * us_interval * 5 / 262144; ++ rq->irq_load_avg = load; ++ ++ rq->irq_load_update = rq->niffies; ++} ++#endif ++ ++/* ++ * Removing from the runqueue. Enter with rq locked. Deleting a task ++ * from the skip list is done via the stored node reference in the task struct ++ * and does not require a full look up. Thus it occurs in O(k) time where k ++ * is the "level" of the list the task was stored at - usually < 4, max 8. ++ */ ++static void dequeue_task(struct rq *rq, struct task_struct *p, int flags) ++{ ++ skiplist_delete(rq->sl, &p->node); ++ rq->best_key = rq->node->next[0]->key; ++ update_clocks(rq); ++ ++ if (!(flags & DEQUEUE_SAVE)) { ++ sched_info_dequeued(rq, p); ++ psi_dequeue(p, flags & DEQUEUE_SLEEP); ++ } ++ rq->nr_running--; ++ if (rt_task(p)) ++ rq->rt_nr_running--; ++ update_load_avg(rq, flags); ++} ++ ++#ifdef CONFIG_PREEMPT_RCU ++static bool rcu_read_critical(struct task_struct *p) ++{ ++ return p->rcu_read_unlock_special.b.blocked; ++} ++#else /* CONFIG_PREEMPT_RCU */ ++#define rcu_read_critical(p) (false) ++#endif /* CONFIG_PREEMPT_RCU */ ++ ++/* ++ * To determine if it's safe for a task of SCHED_IDLEPRIO to actually run as ++ * an idle task, we ensure none of the following conditions are met. ++ */ ++static bool idleprio_suitable(struct task_struct *p) ++{ ++ return (!(task_contributes_to_load(p)) && !(p->flags & (PF_EXITING)) && ++ !signal_pending(p) && !rcu_read_critical(p) && !freezing(p)); ++} ++ ++/* ++ * To determine if a task of SCHED_ISO can run in pseudo-realtime, we check ++ * that the iso_refractory flag is not set. ++ */ ++static inline bool isoprio_suitable(struct rq *rq) ++{ ++ return !rq->iso_refractory; ++} ++ ++/* ++ * Adding to the runqueue. Enter with rq locked. ++ */ ++static void enqueue_task(struct rq *rq, struct task_struct *p, int flags) ++{ ++ unsigned int randseed, cflags = 0; ++ u64 sl_id; ++ ++ if (!rt_task(p)) { ++ /* Check it hasn't gotten rt from PI */ ++ if ((idleprio_task(p) && idleprio_suitable(p)) || ++ (iso_task(p) && isoprio_suitable(rq))) ++ p->prio = p->normal_prio; ++ else ++ p->prio = NORMAL_PRIO; ++ } else ++ rq->rt_nr_running++; ++ /* ++ * The sl_id key passed to the skiplist generates a sorted list. ++ * Realtime and sched iso tasks run FIFO so they only need be sorted ++ * according to priority. The skiplist will put tasks of the same ++ * key inserted later in FIFO order. Tasks of sched normal, batch ++ * and idleprio are sorted according to their deadlines. Idleprio ++ * tasks are offset by an impossibly large deadline value ensuring ++ * they get sorted into last positions, but still according to their ++ * own deadlines. This creates a "landscape" of skiplists running ++ * from priority 0 realtime in first place to the lowest priority ++ * idleprio tasks last. Skiplist insertion is an O(log n) process. ++ */ ++ if (p->prio <= ISO_PRIO) { ++ sl_id = p->prio; ++ } else { ++ sl_id = p->deadline; ++ if (idleprio_task(p)) { ++ if (p->prio == IDLE_PRIO) ++ sl_id |= 0xF000000000000000; ++ else ++ sl_id += longest_deadline_diff(); ++ } ++ } ++ /* ++ * Some architectures don't have better than microsecond resolution ++ * so mask out ~microseconds as the random seed for skiplist insertion. ++ */ ++ update_clocks(rq); ++ if (!(flags & ENQUEUE_RESTORE)) { ++ sched_info_queued(rq, p); ++ psi_enqueue(p, flags & ENQUEUE_WAKEUP); ++ } ++ ++ randseed = (rq->niffies >> 10) & 0xFFFFFFFF; ++ skiplist_insert(rq->sl, &p->node, sl_id, p, randseed); ++ rq->best_key = rq->node->next[0]->key; ++ if (p->in_iowait) ++ cflags |= SCHED_CPUFREQ_IOWAIT; ++ rq->nr_running++; ++ update_load_avg(rq, cflags); ++} ++ ++/* ++ * Returns the relative length of deadline all compared to the shortest ++ * deadline which is that of nice -20. ++ */ ++static inline int task_prio_ratio(struct task_struct *p) ++{ ++ return prio_ratios[TASK_USER_PRIO(p)]; ++} ++ ++/* ++ * task_timeslice - all tasks of all priorities get the exact same timeslice ++ * length. CPU distribution is handled by giving different deadlines to ++ * tasks of different priorities. Use 128 as the base value for fast shifts. ++ */ ++static inline int task_timeslice(struct task_struct *p) ++{ ++ return (rr_interval * task_prio_ratio(p) / 128); ++} ++ ++#ifdef CONFIG_SMP ++/* Entered with rq locked */ ++static inline void resched_if_idle(struct rq *rq) ++{ ++ if (rq_idle(rq)) ++ resched_task(rq->curr); ++} ++ ++static inline bool rq_local(struct rq *rq) ++{ ++ return (rq->cpu == smp_processor_id()); ++} ++#ifdef CONFIG_SMT_NICE ++static const cpumask_t *thread_cpumask(int cpu); ++ ++/* Find the best real time priority running on any SMT siblings of cpu and if ++ * none are running, the static priority of the best deadline task running. ++ * The lookups to the other runqueues is done lockless as the occasional wrong ++ * value would be harmless. */ ++static int best_smt_bias(struct rq *this_rq) ++{ ++ int other_cpu, best_bias = 0; ++ ++ for_each_cpu(other_cpu, &this_rq->thread_mask) { ++ struct rq *rq = cpu_rq(other_cpu); ++ ++ if (rq_idle(rq)) ++ continue; ++ if (unlikely(!rq->online)) ++ continue; ++ if (!rq->rq_mm) ++ continue; ++ if (likely(rq->rq_smt_bias > best_bias)) ++ best_bias = rq->rq_smt_bias; ++ } ++ return best_bias; ++} ++ ++static int task_prio_bias(struct task_struct *p) ++{ ++ if (rt_task(p)) ++ return 1 << 30; ++ else if (task_running_iso(p)) ++ return 1 << 29; ++ else if (task_running_idle(p)) ++ return 0; ++ return MAX_PRIO - p->static_prio; ++} ++ ++static bool smt_always_schedule(struct task_struct __maybe_unused *p, struct rq __maybe_unused *this_rq) ++{ ++ return true; ++} ++ ++static bool (*smt_schedule)(struct task_struct *p, struct rq *this_rq) = &smt_always_schedule; ++ ++/* We've already decided p can run on CPU, now test if it shouldn't for SMT ++ * nice reasons. */ ++static bool smt_should_schedule(struct task_struct *p, struct rq *this_rq) ++{ ++ int best_bias, task_bias; ++ ++ /* Kernel threads always run */ ++ if (unlikely(!p->mm)) ++ return true; ++ if (rt_task(p)) ++ return true; ++ if (!idleprio_suitable(p)) ++ return true; ++ best_bias = best_smt_bias(this_rq); ++ /* The smt siblings are all idle or running IDLEPRIO */ ++ if (best_bias < 1) ++ return true; ++ task_bias = task_prio_bias(p); ++ if (task_bias < 1) ++ return false; ++ if (task_bias >= best_bias) ++ return true; ++ /* Dither 25% cpu of normal tasks regardless of nice difference */ ++ if (best_bias % 4 == 1) ++ return true; ++ /* Sorry, you lose */ ++ return false; ++} ++#else /* CONFIG_SMT_NICE */ ++#define smt_schedule(p, this_rq) (true) ++#endif /* CONFIG_SMT_NICE */ ++ ++static inline void atomic_set_cpu(int cpu, cpumask_t *cpumask) ++{ ++ set_bit(cpu, (volatile unsigned long *)cpumask); ++} ++ ++/* ++ * The cpu_idle_map stores a bitmap of all the CPUs currently idle to ++ * allow easy lookup of whether any suitable idle CPUs are available. ++ * It's cheaper to maintain a binary yes/no if there are any idle CPUs on the ++ * idle_cpus variable than to do a full bitmask check when we are busy. The ++ * bits are set atomically but read locklessly as occasional false positive / ++ * negative is harmless. ++ */ ++static inline void set_cpuidle_map(int cpu) ++{ ++ if (likely(cpu_online(cpu))) ++ atomic_set_cpu(cpu, &cpu_idle_map); ++} ++ ++static inline void atomic_clear_cpu(int cpu, cpumask_t *cpumask) ++{ ++ clear_bit(cpu, (volatile unsigned long *)cpumask); ++} ++ ++static inline void clear_cpuidle_map(int cpu) ++{ ++ atomic_clear_cpu(cpu, &cpu_idle_map); ++} ++ ++static bool suitable_idle_cpus(struct task_struct *p) ++{ ++ return (cpumask_intersects(&p->cpus_allowed, &cpu_idle_map)); ++} ++ ++/* ++ * Resched current on rq. We don't know if rq is local to this CPU nor if it ++ * is locked so we do not use an intermediate variable for the task to avoid ++ * having it dereferenced. ++ */ ++static void resched_curr(struct rq *rq) ++{ ++ int cpu; ++ ++ if (test_tsk_need_resched(rq->curr)) ++ return; ++ ++ rq->preempt = rq->curr; ++ cpu = rq->cpu; ++ ++ /* We're doing this without holding the rq lock if it's not task_rq */ ++ ++ if (cpu == smp_processor_id()) { ++ set_tsk_need_resched(rq->curr); ++ set_preempt_need_resched(); ++ return; ++ } ++ ++ if (set_nr_and_not_polling(rq->curr)) ++ smp_sched_reschedule(cpu); ++ else ++ trace_sched_wake_idle_without_ipi(cpu); ++} ++ ++#define CPUIDLE_DIFF_THREAD (1) ++#define CPUIDLE_DIFF_CORE (2) ++#define CPUIDLE_CACHE_BUSY (4) ++#define CPUIDLE_DIFF_CPU (8) ++#define CPUIDLE_THREAD_BUSY (16) ++#define CPUIDLE_DIFF_NODE (32) ++ ++/* ++ * The best idle CPU is chosen according to the CPUIDLE ranking above where the ++ * lowest value would give the most suitable CPU to schedule p onto next. The ++ * order works out to be the following: ++ * ++ * Same thread, idle or busy cache, idle or busy threads ++ * Other core, same cache, idle or busy cache, idle threads. ++ * Same node, other CPU, idle cache, idle threads. ++ * Same node, other CPU, busy cache, idle threads. ++ * Other core, same cache, busy threads. ++ * Same node, other CPU, busy threads. ++ * Other node, other CPU, idle cache, idle threads. ++ * Other node, other CPU, busy cache, idle threads. ++ * Other node, other CPU, busy threads. ++ */ ++static int best_mask_cpu(int best_cpu, struct rq *rq, cpumask_t *tmpmask) ++{ ++ int best_ranking = CPUIDLE_DIFF_NODE | CPUIDLE_THREAD_BUSY | ++ CPUIDLE_DIFF_CPU | CPUIDLE_CACHE_BUSY | CPUIDLE_DIFF_CORE | ++ CPUIDLE_DIFF_THREAD; ++ int cpu_tmp; ++ ++ if (cpumask_test_cpu(best_cpu, tmpmask)) ++ goto out; ++ ++ for_each_cpu(cpu_tmp, tmpmask) { ++ int ranking, locality; ++ struct rq *tmp_rq; ++ ++ ranking = 0; ++ tmp_rq = cpu_rq(cpu_tmp); ++ ++ locality = rq->cpu_locality[cpu_tmp]; ++#ifdef CONFIG_NUMA ++ if (locality > 3) ++ ranking |= CPUIDLE_DIFF_NODE; ++ else ++#endif ++ if (locality > 2) ++ ranking |= CPUIDLE_DIFF_CPU; ++#ifdef CONFIG_SCHED_MC ++ else if (locality == 2) ++ ranking |= CPUIDLE_DIFF_CORE; ++ else if (!(tmp_rq->cache_idle(tmp_rq))) ++ ranking |= CPUIDLE_CACHE_BUSY; ++#endif ++#ifdef CONFIG_SCHED_SMT ++ if (locality == 1) ++ ranking |= CPUIDLE_DIFF_THREAD; ++ if (!(tmp_rq->siblings_idle(tmp_rq))) ++ ranking |= CPUIDLE_THREAD_BUSY; ++#endif ++ if (ranking < best_ranking) { ++ best_cpu = cpu_tmp; ++ best_ranking = ranking; ++ } ++ } ++out: ++ return best_cpu; ++} ++ ++bool cpus_share_cache(int this_cpu, int that_cpu) ++{ ++ struct rq *this_rq = cpu_rq(this_cpu); ++ ++ return (this_rq->cpu_locality[that_cpu] < 3); ++} ++ ++/* As per resched_curr but only will resched idle task */ ++static inline void resched_idle(struct rq *rq) ++{ ++ if (test_tsk_need_resched(rq->idle)) ++ return; ++ ++ rq->preempt = rq->idle; ++ ++ set_tsk_need_resched(rq->idle); ++ ++ if (rq_local(rq)) { ++ set_preempt_need_resched(); ++ return; ++ } ++ ++ smp_sched_reschedule(rq->cpu); ++} ++ ++static struct rq *resched_best_idle(struct task_struct *p, int cpu) ++{ ++ cpumask_t tmpmask; ++ struct rq *rq; ++ int best_cpu; ++ ++ cpumask_and(&tmpmask, &p->cpus_allowed, &cpu_idle_map); ++ best_cpu = best_mask_cpu(cpu, task_rq(p), &tmpmask); ++ rq = cpu_rq(best_cpu); ++ if (!smt_schedule(p, rq)) ++ return NULL; ++ rq->preempt = p; ++ resched_idle(rq); ++ return rq; ++} ++ ++static inline void resched_suitable_idle(struct task_struct *p) ++{ ++ if (suitable_idle_cpus(p)) ++ resched_best_idle(p, task_cpu(p)); ++} ++ ++static inline struct rq *rq_order(struct rq *rq, int cpu) ++{ ++ return rq->rq_order[cpu]; ++} ++#else /* CONFIG_SMP */ ++static inline void set_cpuidle_map(int cpu) ++{ ++} ++ ++static inline void clear_cpuidle_map(int cpu) ++{ ++} ++ ++static inline bool suitable_idle_cpus(struct task_struct *p) ++{ ++ return uprq->curr == uprq->idle; ++} ++ ++static inline void resched_suitable_idle(struct task_struct *p) ++{ ++} ++ ++static inline void resched_curr(struct rq *rq) ++{ ++ resched_task(rq->curr); ++} ++ ++static inline void resched_if_idle(struct rq *rq) ++{ ++} ++ ++static inline bool rq_local(struct rq *rq) ++{ ++ return true; ++} ++ ++static inline struct rq *rq_order(struct rq *rq, int cpu) ++{ ++ return rq; ++} ++ ++static inline bool smt_schedule(struct task_struct *p, struct rq *rq) ++{ ++ return true; ++} ++#endif /* CONFIG_SMP */ ++ ++static inline int normal_prio(struct task_struct *p) ++{ ++ if (has_rt_policy(p)) ++ return MAX_RT_PRIO - 1 - p->rt_priority; ++ if (idleprio_task(p)) ++ return IDLE_PRIO; ++ if (iso_task(p)) ++ return ISO_PRIO; ++ return NORMAL_PRIO; ++} ++ ++/* ++ * Calculate the current priority, i.e. the priority ++ * taken into account by the scheduler. This value might ++ * be boosted by RT tasks as it will be RT if the task got ++ * RT-boosted. If not then it returns p->normal_prio. ++ */ ++static int effective_prio(struct task_struct *p) ++{ ++ p->normal_prio = normal_prio(p); ++ /* ++ * If we are RT tasks or we were boosted to RT priority, ++ * keep the priority unchanged. Otherwise, update priority ++ * to the normal priority: ++ */ ++ if (!rt_prio(p->prio)) ++ return p->normal_prio; ++ return p->prio; ++} ++ ++/* ++ * activate_task - move a task to the runqueue. Enter with rq locked. ++ */ ++static void activate_task(struct task_struct *p, struct rq *rq, int flags) ++{ ++ resched_if_idle(rq); ++ ++ /* ++ * Sleep time is in units of nanosecs, so shift by 20 to get a ++ * milliseconds-range estimation of the amount of time that the task ++ * spent sleeping: ++ */ ++ if (unlikely(prof_on == SLEEP_PROFILING)) { ++ if (p->state == TASK_UNINTERRUPTIBLE) ++ profile_hits(SLEEP_PROFILING, (void *)get_wchan(p), ++ (rq->niffies - p->last_ran) >> 20); ++ } ++ ++ p->prio = effective_prio(p); ++ if (task_contributes_to_load(p)) ++ rq->nr_uninterruptible--; ++ ++ enqueue_task(rq, p, flags); ++ p->on_rq = TASK_ON_RQ_QUEUED; ++} ++ ++/* ++ * deactivate_task - If it's running, it's not on the runqueue and we can just ++ * decrement the nr_running. Enter with rq locked. ++ */ ++static inline void deactivate_task(struct task_struct *p, struct rq *rq, int flags) ++{ ++ if (task_contributes_to_load(p)) ++ rq->nr_uninterruptible++; ++ ++ p->on_rq = 0; ++ if (!(flags & DEQUEUE_SAVE)) { ++ sched_info_dequeued(rq, p); ++ psi_dequeue(p, flags & DEQUEUE_SLEEP); ++ } ++} ++ ++#ifdef CONFIG_SMP ++void set_task_cpu(struct task_struct *p, unsigned int new_cpu) ++{ ++ struct rq *rq; ++ ++ if (task_cpu(p) == new_cpu) ++ return; ++ ++ /* Do NOT call set_task_cpu on a currently queued task as we will not ++ * be reliably holding the rq lock after changing CPU. */ ++ BUG_ON(task_queued(p)); ++ rq = task_rq(p); ++ ++#ifdef CONFIG_LOCKDEP ++ /* ++ * The caller should hold either p->pi_lock or rq->lock, when changing ++ * a task's CPU. ->pi_lock for waking tasks, rq->lock for runnable tasks. ++ * ++ * Furthermore, all task_rq users should acquire both locks, see ++ * task_rq_lock(). ++ */ ++ WARN_ON_ONCE(debug_locks && !(lockdep_is_held(&p->pi_lock) || ++ lockdep_is_held(rq->lock))); ++#endif ++ ++ trace_sched_migrate_task(p, new_cpu); ++ rseq_migrate(p); ++ perf_event_task_migrate(p); ++ ++ /* ++ * After ->cpu is set up to a new value, task_rq_lock(p, ...) can be ++ * successfully executed on another CPU. We must ensure that updates of ++ * per-task data have been completed by this moment. ++ */ ++ smp_wmb(); ++ ++ p->wake_cpu = new_cpu; ++ ++ if (task_running(rq, p)) { ++ /* ++ * We should only be calling this on a running task if we're ++ * holding rq lock. ++ */ ++ lockdep_assert_held(rq->lock); ++ ++ /* ++ * We can't change the task_thread_info CPU on a running task ++ * as p will still be protected by the rq lock of the CPU it ++ * is still running on so we only set the wake_cpu for it to be ++ * lazily updated once off the CPU. ++ */ ++ return; ++ } ++ ++#ifdef CONFIG_THREAD_INFO_IN_TASK ++ p->cpu = new_cpu; ++#else ++ task_thread_info(p)->cpu = new_cpu; ++#endif ++ /* We're no longer protecting p after this point since we're holding ++ * the wrong runqueue lock. */ ++} ++#endif /* CONFIG_SMP */ ++ ++/* ++ * Move a task off the runqueue and take it to a cpu for it will ++ * become the running task. ++ */ ++static inline void take_task(struct rq *rq, int cpu, struct task_struct *p) ++{ ++ struct rq *p_rq = task_rq(p); ++ ++ dequeue_task(p_rq, p, DEQUEUE_SAVE); ++ if (p_rq != rq) { ++ sched_info_dequeued(p_rq, p); ++ sched_info_queued(rq, p); ++ } ++ set_task_cpu(p, cpu); ++} ++ ++/* ++ * Returns a descheduling task to the runqueue unless it is being ++ * deactivated. ++ */ ++static inline void return_task(struct task_struct *p, struct rq *rq, ++ int cpu, bool deactivate) ++{ ++ if (deactivate) ++ deactivate_task(p, rq, DEQUEUE_SLEEP); ++ else { ++#ifdef CONFIG_SMP ++ /* ++ * set_task_cpu was called on the running task that doesn't ++ * want to deactivate so it has to be enqueued to a different ++ * CPU and we need its lock. Tag it to be moved with as the ++ * lock is dropped in finish_lock_switch. ++ */ ++ if (unlikely(p->wake_cpu != cpu)) ++ p->on_rq = TASK_ON_RQ_MIGRATING; ++ else ++#endif ++ enqueue_task(rq, p, ENQUEUE_RESTORE); ++ } ++} ++ ++/* Enter with rq lock held. We know p is on the local cpu */ ++static inline void __set_tsk_resched(struct task_struct *p) ++{ ++ set_tsk_need_resched(p); ++ set_preempt_need_resched(); ++} ++ ++/** ++ * task_curr - is this task currently executing on a CPU? ++ * @p: the task in question. ++ * ++ * Return: 1 if the task is currently executing. 0 otherwise. ++ */ ++inline int task_curr(const struct task_struct *p) ++{ ++ return cpu_curr(task_cpu(p)) == p; ++} ++ ++#ifdef CONFIG_SMP ++/* ++ * wait_task_inactive - wait for a thread to unschedule. ++ * ++ * If @match_state is nonzero, it's the @p->state value just checked and ++ * not expected to change. If it changes, i.e. @p might have woken up, ++ * then return zero. When we succeed in waiting for @p to be off its CPU, ++ * we return a positive number (its total switch count). If a second call ++ * a short while later returns the same number, the caller can be sure that ++ * @p has remained unscheduled the whole time. ++ * ++ * The caller must ensure that the task *will* unschedule sometime soon, ++ * else this function might spin for a *long* time. This function can't ++ * be called with interrupts off, or it may introduce deadlock with ++ * smp_call_function() if an IPI is sent by the same process we are ++ * waiting to become inactive. ++ */ ++unsigned long wait_task_inactive(struct task_struct *p, long match_state) ++{ ++ int running, queued; ++ struct rq_flags rf; ++ unsigned long ncsw; ++ struct rq *rq; ++ ++ for (;;) { ++ rq = task_rq(p); ++ ++ /* ++ * If the task is actively running on another CPU ++ * still, just relax and busy-wait without holding ++ * any locks. ++ * ++ * NOTE! Since we don't hold any locks, it's not ++ * even sure that "rq" stays as the right runqueue! ++ * But we don't care, since this will return false ++ * if the runqueue has changed and p is actually now ++ * running somewhere else! ++ */ ++ while (task_running(rq, p)) { ++ if (match_state && unlikely(p->state != match_state)) ++ return 0; ++ cpu_relax(); ++ } ++ ++ /* ++ * Ok, time to look more closely! We need the rq ++ * lock now, to be *sure*. If we're wrong, we'll ++ * just go back and repeat. ++ */ ++ rq = task_rq_lock(p, &rf); ++ trace_sched_wait_task(p); ++ running = task_running(rq, p); ++ queued = task_on_rq_queued(p); ++ ncsw = 0; ++ if (!match_state || p->state == match_state) ++ ncsw = p->nvcsw | LONG_MIN; /* sets MSB */ ++ task_rq_unlock(rq, p, &rf); ++ ++ /* ++ * If it changed from the expected state, bail out now. ++ */ ++ if (unlikely(!ncsw)) ++ break; ++ ++ /* ++ * Was it really running after all now that we ++ * checked with the proper locks actually held? ++ * ++ * Oops. Go back and try again.. ++ */ ++ if (unlikely(running)) { ++ cpu_relax(); ++ continue; ++ } ++ ++ /* ++ * It's not enough that it's not actively running, ++ * it must be off the runqueue _entirely_, and not ++ * preempted! ++ * ++ * So if it was still runnable (but just not actively ++ * running right now), it's preempted, and we should ++ * yield - it could be a while. ++ */ ++ if (unlikely(queued)) { ++ ktime_t to = NSEC_PER_SEC / HZ; ++ ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ schedule_hrtimeout(&to, HRTIMER_MODE_REL); ++ continue; ++ } ++ ++ /* ++ * Ahh, all good. It wasn't running, and it wasn't ++ * runnable, which means that it will never become ++ * running in the future either. We're all done! ++ */ ++ break; ++ } ++ ++ return ncsw; ++} ++ ++/*** ++ * kick_process - kick a running thread to enter/exit the kernel ++ * @p: the to-be-kicked thread ++ * ++ * Cause a process which is running on another CPU to enter ++ * kernel-mode, without any delay. (to get signals handled.) ++ * ++ * NOTE: this function doesn't have to take the runqueue lock, ++ * because all it wants to ensure is that the remote task enters ++ * the kernel. If the IPI races and the task has been migrated ++ * to another CPU then no harm is done and the purpose has been ++ * achieved as well. ++ */ ++void kick_process(struct task_struct *p) ++{ ++ int cpu; ++ ++ preempt_disable(); ++ cpu = task_cpu(p); ++ if ((cpu != smp_processor_id()) && task_curr(p)) ++ smp_sched_reschedule(cpu); ++ preempt_enable(); ++} ++EXPORT_SYMBOL_GPL(kick_process); ++#endif ++ ++/* ++ * RT tasks preempt purely on priority. SCHED_NORMAL tasks preempt on the ++ * basis of earlier deadlines. SCHED_IDLEPRIO don't preempt anything else or ++ * between themselves, they cooperatively multitask. An idle rq scores as ++ * prio PRIO_LIMIT so it is always preempted. ++ */ ++static inline bool ++can_preempt(struct task_struct *p, int prio, u64 deadline) ++{ ++ /* Better static priority RT task or better policy preemption */ ++ if (p->prio < prio) ++ return true; ++ if (p->prio > prio) ++ return false; ++ if (p->policy == SCHED_BATCH) ++ return false; ++ /* SCHED_NORMAL and ISO will preempt based on deadline */ ++ if (!deadline_before(p->deadline, deadline)) ++ return false; ++ return true; ++} ++ ++#ifdef CONFIG_SMP ++ ++static inline bool is_per_cpu_kthread(struct task_struct *p) ++{ ++ if (!(p->flags & PF_KTHREAD)) ++ return false; ++ ++ if (p->nr_cpus_allowed != 1) ++ return false; ++ ++ return true; ++} ++ ++/* ++ * Per-CPU kthreads are allowed to run on !active && online CPUs, see ++ * __set_cpus_allowed_ptr(). ++ */ ++static inline bool is_cpu_allowed(struct task_struct *p, int cpu) ++{ ++ if (!cpumask_test_cpu(cpu, &p->cpus_allowed)) ++ return false; ++ ++ if (is_per_cpu_kthread(p)) ++ return cpu_online(cpu); ++ ++ return cpu_active(cpu); ++} ++ ++/* ++ * Check to see if p can run on cpu, and if not, whether there are any online ++ * CPUs it can run on instead. This only happens with the hotplug threads that ++ * bring up the CPUs. ++ */ ++static inline bool sched_other_cpu(struct task_struct *p, int cpu) ++{ ++ if (likely(cpumask_test_cpu(cpu, &p->cpus_allowed))) ++ return false; ++ if (p->nr_cpus_allowed == 1) { ++ cpumask_t valid_mask; ++ ++ cpumask_and(&valid_mask, &p->cpus_allowed, cpu_online_mask); ++ if (unlikely(cpumask_empty(&valid_mask))) ++ return false; ++ } ++ return true; ++} ++ ++static inline bool needs_other_cpu(struct task_struct *p, int cpu) ++{ ++ if (cpumask_test_cpu(cpu, &p->cpus_allowed)) ++ return false; ++ return true; ++} ++ ++#define cpu_online_map (*(cpumask_t *)cpu_online_mask) ++ ++static void try_preempt(struct task_struct *p, struct rq *this_rq) ++{ ++ int i, this_entries = rq_load(this_rq); ++ cpumask_t tmp; ++ ++ if (suitable_idle_cpus(p) && resched_best_idle(p, task_cpu(p))) ++ return; ++ ++ /* IDLEPRIO tasks never preempt anything but idle */ ++ if (p->policy == SCHED_IDLEPRIO) ++ return; ++ ++ cpumask_and(&tmp, &cpu_online_map, &p->cpus_allowed); ++ ++ for (i = 0; i < num_possible_cpus(); i++) { ++ struct rq *rq = this_rq->cpu_order[i]; ++ ++ if (!cpumask_test_cpu(rq->cpu, &tmp)) ++ continue; ++ ++ if (!sched_interactive && rq != this_rq && rq_load(rq) <= this_entries) ++ continue; ++ if (smt_schedule(p, rq) && can_preempt(p, rq->rq_prio, rq->rq_deadline)) { ++ /* We set rq->preempting lockless, it's a hint only */ ++ rq->preempting = p; ++ resched_curr(rq); ++ return; ++ } ++ } ++} ++ ++static int __set_cpus_allowed_ptr(struct task_struct *p, ++ const struct cpumask *new_mask, bool check); ++#else /* CONFIG_SMP */ ++static inline bool needs_other_cpu(struct task_struct *p, int cpu) ++{ ++ return false; ++} ++ ++static void try_preempt(struct task_struct *p, struct rq *this_rq) ++{ ++ if (p->policy == SCHED_IDLEPRIO) ++ return; ++ if (can_preempt(p, uprq->rq_prio, uprq->rq_deadline)) ++ resched_curr(uprq); ++} ++ ++static inline int __set_cpus_allowed_ptr(struct task_struct *p, ++ const struct cpumask *new_mask, bool check) ++{ ++ return set_cpus_allowed_ptr(p, new_mask); ++} ++#endif /* CONFIG_SMP */ ++ ++/* ++ * wake flags ++ */ ++#define WF_SYNC 0x01 /* waker goes to sleep after wakeup */ ++#define WF_FORK 0x02 /* child wakeup after fork */ ++#define WF_MIGRATED 0x04 /* internal use, task got migrated */ ++ ++static void ++ttwu_stat(struct task_struct *p, int cpu, int wake_flags) ++{ ++ struct rq *rq; ++ ++ if (!schedstat_enabled()) ++ return; ++ ++ rq = this_rq(); ++ ++#ifdef CONFIG_SMP ++ if (cpu == rq->cpu) { ++ __schedstat_inc(rq->ttwu_local); ++ } else { ++ struct sched_domain *sd; ++ ++ rcu_read_lock(); ++ for_each_domain(rq->cpu, sd) { ++ if (cpumask_test_cpu(cpu, sched_domain_span(sd))) { ++ __schedstat_inc(sd->ttwu_wake_remote); ++ break; ++ } ++ } ++ rcu_read_unlock(); ++ } ++ ++#endif /* CONFIG_SMP */ ++ ++ __schedstat_inc(rq->ttwu_count); ++} ++ ++static inline void ttwu_activate(struct rq *rq, struct task_struct *p, int en_flags) ++{ ++ activate_task(p, rq, en_flags); ++ ++ /* if a worker is waking up, notify the workqueue */ ++ if (p->flags & PF_WQ_WORKER) ++ wq_worker_waking_up(p, cpu_of(rq)); ++} ++ ++/* ++ * Mark the task runnable and perform wakeup-preemption. ++ */ ++static void ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags) ++{ ++ /* ++ * Sync wakeups (i.e. those types of wakeups where the waker ++ * has indicated that it will leave the CPU in short order) ++ * don't trigger a preemption if there are no idle cpus, ++ * instead waiting for current to deschedule. ++ */ ++ if (wake_flags & WF_SYNC) ++ resched_suitable_idle(p); ++ else ++ try_preempt(p, rq); ++ p->state = TASK_RUNNING; ++ trace_sched_wakeup(p); ++} ++ ++static void ++ttwu_do_activate(struct rq *rq, struct task_struct *p, int wake_flags) ++{ ++ int en_flags = ENQUEUE_WAKEUP; ++ ++ lockdep_assert_held(rq->lock); ++ ++#ifdef CONFIG_SMP ++ if (p->sched_contributes_to_load) ++ rq->nr_uninterruptible--; ++ ++ if (wake_flags & WF_MIGRATED) ++ en_flags |= ENQUEUE_MIGRATED; ++#endif ++ ++ ttwu_activate(rq, p, en_flags); ++ ttwu_do_wakeup(rq, p, wake_flags); ++} ++ ++/* ++ * Called in case the task @p isn't fully descheduled from its runqueue, ++ * in this case we must do a remote wakeup. Its a 'light' wakeup though, ++ * since all we need to do is flip p->state to TASK_RUNNING, since ++ * the task is still ->on_rq. ++ */ ++static int ttwu_remote(struct task_struct *p, int wake_flags) ++{ ++ struct rq *rq; ++ int ret = 0; ++ ++ rq = __task_rq_lock(p, NULL); ++ if (likely(task_on_rq_queued(p))) { ++ ttwu_do_wakeup(rq, p, wake_flags); ++ ret = 1; ++ } ++ __task_rq_unlock(rq, NULL); ++ ++ return ret; ++} ++ ++#ifdef CONFIG_SMP ++void sched_ttwu_pending(void) ++{ ++ struct rq *rq = this_rq(); ++ struct llist_node *llist = llist_del_all(&rq->wake_list); ++ struct task_struct *p, *t; ++ struct rq_flags rf; ++ ++ if (!llist) ++ return; ++ ++ rq_lock_irqsave(rq, &rf); ++ ++ llist_for_each_entry_safe(p, t, llist, wake_entry) ++ ttwu_do_activate(rq, p, 0); ++ ++ rq_unlock_irqrestore(rq, &rf); ++} ++ ++void scheduler_ipi(void) ++{ ++ /* ++ * Fold TIF_NEED_RESCHED into the preempt_count; anybody setting ++ * TIF_NEED_RESCHED remotely (for the first time) will also send ++ * this IPI. ++ */ ++ preempt_fold_need_resched(); ++ ++ if (llist_empty(&this_rq()->wake_list) && (!idle_cpu(smp_processor_id()) || need_resched())) ++ return; ++ ++ /* ++ * Not all reschedule IPI handlers call irq_enter/irq_exit, since ++ * traditionally all their work was done from the interrupt return ++ * path. Now that we actually do some work, we need to make sure ++ * we do call them. ++ * ++ * Some archs already do call them, luckily irq_enter/exit nest ++ * properly. ++ * ++ * Arguably we should visit all archs and update all handlers, ++ * however a fair share of IPIs are still resched only so this would ++ * somewhat pessimize the simple resched case. ++ */ ++ irq_enter(); ++ sched_ttwu_pending(); ++ irq_exit(); ++} ++ ++static void ttwu_queue_remote(struct task_struct *p, int cpu, int wake_flags) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ ++ if (llist_add(&p->wake_entry, &cpu_rq(cpu)->wake_list)) { ++ if (!set_nr_if_polling(rq->idle)) ++ smp_sched_reschedule(cpu); ++ else ++ trace_sched_wake_idle_without_ipi(cpu); ++ } ++} ++ ++void wake_up_if_idle(int cpu) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ struct rq_flags rf; ++ ++ rcu_read_lock(); ++ ++ if (!is_idle_task(rcu_dereference(rq->curr))) ++ goto out; ++ ++ if (set_nr_if_polling(rq->idle)) { ++ trace_sched_wake_idle_without_ipi(cpu); ++ } else { ++ rq_lock_irqsave(rq, &rf); ++ if (likely(is_idle_task(rq->curr))) ++ smp_sched_reschedule(cpu); ++ /* Else cpu is not in idle, do nothing here */ ++ rq_unlock_irqrestore(rq, &rf); ++ } ++ ++out: ++ rcu_read_unlock(); ++} ++ ++static int valid_task_cpu(struct task_struct *p) ++{ ++ cpumask_t valid_mask; ++ ++ if (p->flags & PF_KTHREAD) ++ cpumask_and(&valid_mask, &p->cpus_allowed, cpu_all_mask); ++ else ++ cpumask_and(&valid_mask, &p->cpus_allowed, cpu_active_mask); ++ ++ if (unlikely(!cpumask_weight(&valid_mask))) { ++ /* We shouldn't be hitting this any more */ ++ printk(KERN_WARNING "SCHED: No cpumask for %s/%d weight %d\n", p->comm, ++ p->pid, cpumask_weight(&p->cpus_allowed)); ++ return cpumask_any(&p->cpus_allowed); ++ } ++ return cpumask_any(&valid_mask); ++} ++ ++/* ++ * For a task that's just being woken up we have a valuable balancing ++ * opportunity so choose the nearest cache most lightly loaded runqueue. ++ * Entered with rq locked and returns with the chosen runqueue locked. ++ */ ++static inline int select_best_cpu(struct task_struct *p) ++{ ++ unsigned int idlest = ~0U; ++ struct rq *rq = NULL; ++ int i; ++ ++ if (suitable_idle_cpus(p)) { ++ int cpu = task_cpu(p); ++ ++ if (unlikely(needs_other_cpu(p, cpu))) ++ cpu = valid_task_cpu(p); ++ rq = resched_best_idle(p, cpu); ++ if (likely(rq)) ++ return rq->cpu; ++ } ++ ++ for (i = 0; i < num_possible_cpus(); i++) { ++ struct rq *other_rq = task_rq(p)->cpu_order[i]; ++ int entries; ++ ++ if (!other_rq->online) ++ continue; ++ if (needs_other_cpu(p, other_rq->cpu)) ++ continue; ++ entries = rq_load(other_rq); ++ if (entries >= idlest) ++ continue; ++ idlest = entries; ++ rq = other_rq; ++ } ++ if (unlikely(!rq)) ++ return task_cpu(p); ++ return rq->cpu; ++} ++#else /* CONFIG_SMP */ ++static int valid_task_cpu(struct task_struct *p) ++{ ++ return 0; ++} ++ ++static inline int select_best_cpu(struct task_struct *p) ++{ ++ return 0; ++} ++ ++static struct rq *resched_best_idle(struct task_struct *p, int cpu) ++{ ++ return NULL; ++} ++#endif /* CONFIG_SMP */ ++ ++static void ttwu_queue(struct task_struct *p, int cpu, int wake_flags) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ ++#if defined(CONFIG_SMP) ++ if (!cpus_share_cache(smp_processor_id(), cpu)) { ++ sched_clock_cpu(cpu); /* Sync clocks across CPUs */ ++ ttwu_queue_remote(p, cpu, wake_flags); ++ return; ++ } ++#endif ++ rq_lock(rq); ++ ttwu_do_activate(rq, p, wake_flags); ++ rq_unlock(rq); ++} ++ ++/*** ++ * try_to_wake_up - wake up a thread ++ * @p: the thread to be awakened ++ * @state: the mask of task states that can be woken ++ * @wake_flags: wake modifier flags (WF_*) ++ * ++ * Put it on the run-queue if it's not already there. The "current" ++ * thread is always on the run-queue (except when the actual ++ * re-schedule is in progress), and as such you're allowed to do ++ * the simpler "current->state = TASK_RUNNING" to mark yourself ++ * runnable without the overhead of this. ++ * ++ * Return: %true if @p was woken up, %false if it was already running. ++ * or @state didn't match @p's state. ++ */ ++static int ++try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags) ++{ ++ unsigned long flags; ++ int cpu, success = 0; ++ ++ /* ++ * If we are going to wake up a thread waiting for CONDITION we ++ * need to ensure that CONDITION=1 done by the caller can not be ++ * reordered with p->state check below. This pairs with mb() in ++ * set_current_state() the waiting thread does. ++ */ ++ raw_spin_lock_irqsave(&p->pi_lock, flags); ++ smp_mb__after_spinlock(); ++ /* state is a volatile long, どうして、分からない */ ++ if (!((unsigned int)p->state & state)) ++ goto out; ++ ++ trace_sched_waking(p); ++ ++ /* We're going to change ->state: */ ++ success = 1; ++ cpu = task_cpu(p); ++ ++ /* ++ * Ensure we load p->on_rq _after_ p->state, otherwise it would ++ * be possible to, falsely, observe p->on_rq == 0 and get stuck ++ * in smp_cond_load_acquire() below. ++ * ++ * sched_ttwu_pending() try_to_wake_up() ++ * STORE p->on_rq = 1 LOAD p->state ++ * UNLOCK rq->lock ++ * ++ * __schedule() (switch to task 'p') ++ * LOCK rq->lock smp_rmb(); ++ * smp_mb__after_spinlock(); ++ * UNLOCK rq->lock ++ * ++ * [task p] ++ * STORE p->state = UNINTERRUPTIBLE LOAD p->on_rq ++ * ++ * Pairs with the LOCK+smp_mb__after_spinlock() on rq->lock in ++ * __schedule(). See the comment for smp_mb__after_spinlock(). ++ */ ++ smp_rmb(); ++ if (p->on_rq && ttwu_remote(p, wake_flags)) ++ goto stat; ++ ++#ifdef CONFIG_SMP ++ /* ++ * Ensure we load p->on_cpu _after_ p->on_rq, otherwise it would be ++ * possible to, falsely, observe p->on_cpu == 0. ++ * ++ * One must be running (->on_cpu == 1) in order to remove oneself ++ * from the runqueue. ++ * ++ * __schedule() (switch to task 'p') try_to_wake_up() ++ * STORE p->on_cpu = 1 LOAD p->on_rq ++ * UNLOCK rq->lock ++ * ++ * __schedule() (put 'p' to sleep) ++ * LOCK rq->lock smp_rmb(); ++ * smp_mb__after_spinlock(); ++ * STORE p->on_rq = 0 LOAD p->on_cpu ++ * ++ * Pairs with the LOCK+smp_mb__after_spinlock() on rq->lock in ++ * __schedule(). See the comment for smp_mb__after_spinlock(). ++ */ ++ smp_rmb(); ++ ++ /* ++ * If the owning (remote) CPU is still in the middle of schedule() with ++ * this task as prev, wait until its done referencing the task. ++ * ++ * Pairs with the smp_store_release() in finish_task(). ++ * ++ * This ensures that tasks getting woken will be fully ordered against ++ * their previous state and preserve Program Order. ++ */ ++ smp_cond_load_acquire(&p->on_cpu, !VAL); ++ ++ p->sched_contributes_to_load = !!task_contributes_to_load(p); ++ p->state = TASK_WAKING; ++ ++ if (p->in_iowait) { ++ delayacct_blkio_end(p); ++ atomic_dec(&task_rq(p)->nr_iowait); ++ } ++ ++ cpu = select_best_cpu(p); ++ if (task_cpu(p) != cpu) { ++ wake_flags |= WF_MIGRATED; ++ psi_ttwu_dequeue(p); ++ set_task_cpu(p, cpu); ++ } ++ ++#else /* CONFIG_SMP */ ++ ++ if (p->in_iowait) { ++ delayacct_blkio_end(p); ++ atomic_dec(&task_rq(p)->nr_iowait); ++ } ++ ++#endif /* CONFIG_SMP */ ++ ++ ttwu_queue(p, cpu, wake_flags); ++stat: ++ ttwu_stat(p, cpu, wake_flags); ++out: ++ raw_spin_unlock_irqrestore(&p->pi_lock, flags); ++ ++ return success; ++} ++ ++/** ++ * try_to_wake_up_local - try to wake up a local task with rq lock held ++ * @p: the thread to be awakened ++ * ++ * Put @p on the run-queue if it's not already there. The caller must ++ * ensure that rq is locked and, @p is not the current task. ++ * rq stays locked over invocation. ++ */ ++static void try_to_wake_up_local(struct task_struct *p) ++{ ++ struct rq *rq = task_rq(p); ++ ++ if (WARN_ON_ONCE(rq != this_rq()) || ++ WARN_ON_ONCE(p == current)) ++ return; ++ ++ lockdep_assert_held(rq->lock); ++ ++ if (!raw_spin_trylock(&p->pi_lock)) { ++ /* ++ * This is OK, because current is on_cpu, which avoids it being ++ * picked for load-balance and preemption/IRQs are still ++ * disabled avoiding further scheduler activity on it and we've ++ * not yet picked a replacement task. ++ */ ++ rq_unlock(rq); ++ raw_spin_lock(&p->pi_lock); ++ rq_lock(rq); ++ } ++ ++ if (!(p->state & TASK_NORMAL)) ++ goto out; ++ ++ trace_sched_waking(p); ++ ++ if (!task_on_rq_queued(p)) { ++ if (p->in_iowait) { ++ delayacct_blkio_end(p); ++ atomic_dec(&rq->nr_iowait); ++ } ++ ttwu_activate(rq, p, ENQUEUE_WAKEUP); ++ } ++ ++ ttwu_do_wakeup(rq, p, 0); ++ ttwu_stat(p, smp_processor_id(), 0); ++out: ++ raw_spin_unlock(&p->pi_lock); ++} ++ ++/** ++ * wake_up_process - Wake up a specific process ++ * @p: The process to be woken up. ++ * ++ * Attempt to wake up the nominated process and move it to the set of runnable ++ * processes. ++ * ++ * Return: 1 if the process was woken up, 0 if it was already running. ++ * ++ * This function executes a full memory barrier before accessing the task state. ++ */ ++int wake_up_process(struct task_struct *p) ++{ ++ return try_to_wake_up(p, TASK_NORMAL, 0); ++} ++EXPORT_SYMBOL(wake_up_process); ++ ++int wake_up_state(struct task_struct *p, unsigned int state) ++{ ++ return try_to_wake_up(p, state, 0); ++} ++ ++static void time_slice_expired(struct task_struct *p, struct rq *rq); ++ ++/* ++ * Perform scheduler related setup for a newly forked process p. ++ * p is forked by current. ++ */ ++int sched_fork(unsigned long __maybe_unused clone_flags, struct task_struct *p) ++{ ++ unsigned long flags; ++ ++#ifdef CONFIG_PREEMPT_NOTIFIERS ++ INIT_HLIST_HEAD(&p->preempt_notifiers); ++#endif ++ /* ++ * We mark the process as NEW here. This guarantees that ++ * nobody will actually run it, and a signal or other external ++ * event cannot wake it up and insert it on the runqueue either. ++ */ ++ p->state = TASK_NEW; ++ ++ /* ++ * The process state is set to the same value of the process executing ++ * do_fork() code. That is running. This guarantees that nobody will ++ * actually run it, and a signal or other external event cannot wake ++ * it up and insert it on the runqueue either. ++ */ ++ ++ /* Should be reset in fork.c but done here for ease of MuQSS patching */ ++ p->on_cpu = ++ p->on_rq = ++ p->utime = ++ p->stime = ++ p->sched_time = ++ p->stime_ns = ++ p->utime_ns = 0; ++ skiplist_node_init(&p->node); ++ ++ /* ++ * Revert to default priority/policy on fork if requested. ++ */ ++ if (unlikely(p->sched_reset_on_fork)) { ++ if (p->policy == SCHED_FIFO || p->policy == SCHED_RR) { ++ p->policy = SCHED_NORMAL; ++ p->normal_prio = normal_prio(p); ++ } ++ ++ if (PRIO_TO_NICE(p->static_prio) < 0) { ++ p->static_prio = NICE_TO_PRIO(0); ++ p->normal_prio = p->static_prio; ++ } ++ ++ /* ++ * We don't need the reset flag anymore after the fork. It has ++ * fulfilled its duty: ++ */ ++ p->sched_reset_on_fork = 0; ++ } ++ ++ /* ++ * Silence PROVE_RCU. ++ */ ++ raw_spin_lock_irqsave(&p->pi_lock, flags); ++ set_task_cpu(p, smp_processor_id()); ++ raw_spin_unlock_irqrestore(&p->pi_lock, flags); ++ ++#ifdef CONFIG_SCHED_INFO ++ if (unlikely(sched_info_on())) ++ memset(&p->sched_info, 0, sizeof(p->sched_info)); ++#endif ++ init_task_preempt_count(p); ++ ++ return 0; ++} ++ ++#ifdef CONFIG_SCHEDSTATS ++ ++DEFINE_STATIC_KEY_FALSE(sched_schedstats); ++static bool __initdata __sched_schedstats = false; ++ ++static void set_schedstats(bool enabled) ++{ ++ if (enabled) ++ static_branch_enable(&sched_schedstats); ++ else ++ static_branch_disable(&sched_schedstats); ++} ++ ++void force_schedstat_enabled(void) ++{ ++ if (!schedstat_enabled()) { ++ pr_info("kernel profiling enabled schedstats, disable via kernel.sched_schedstats.\n"); ++ static_branch_enable(&sched_schedstats); ++ } ++} ++ ++static int __init setup_schedstats(char *str) ++{ ++ int ret = 0; ++ if (!str) ++ goto out; ++ ++ /* ++ * This code is called before jump labels have been set up, so we can't ++ * change the static branch directly just yet. Instead set a temporary ++ * variable so init_schedstats() can do it later. ++ */ ++ if (!strcmp(str, "enable")) { ++ __sched_schedstats = true; ++ ret = 1; ++ } else if (!strcmp(str, "disable")) { ++ __sched_schedstats = false; ++ ret = 1; ++ } ++out: ++ if (!ret) ++ pr_warn("Unable to parse schedstats=\n"); ++ ++ return ret; ++} ++__setup("schedstats=", setup_schedstats); ++ ++static void __init init_schedstats(void) ++{ ++ set_schedstats(__sched_schedstats); ++} ++ ++#ifdef CONFIG_PROC_SYSCTL ++int sysctl_schedstats(struct ctl_table *table, int write, ++ void __user *buffer, size_t *lenp, loff_t *ppos) ++{ ++ struct ctl_table t; ++ int err; ++ int state = static_branch_likely(&sched_schedstats); ++ ++ if (write && !capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ t = *table; ++ t.data = &state; ++ err = proc_dointvec_minmax(&t, write, buffer, lenp, ppos); ++ if (err < 0) ++ return err; ++ if (write) ++ set_schedstats(state); ++ return err; ++} ++#endif /* CONFIG_PROC_SYSCTL */ ++#else /* !CONFIG_SCHEDSTATS */ ++static inline void init_schedstats(void) {} ++#endif /* CONFIG_SCHEDSTATS */ ++ ++static void update_cpu_clock_switch(struct rq *rq, struct task_struct *p); ++ ++static void account_task_cpu(struct rq *rq, struct task_struct *p) ++{ ++ update_clocks(rq); ++ /* This isn't really a context switch but accounting is the same */ ++ update_cpu_clock_switch(rq, p); ++ p->last_ran = rq->niffies; ++} ++ ++bool sched_smp_initialized __read_mostly; ++ ++static inline int hrexpiry_enabled(struct rq *rq) ++{ ++ if (unlikely(!cpu_active(cpu_of(rq)) || !sched_smp_initialized)) ++ return 0; ++ return hrtimer_is_hres_active(&rq->hrexpiry_timer); ++} ++ ++/* ++ * Use HR-timers to deliver accurate preemption points. ++ */ ++static inline void hrexpiry_clear(struct rq *rq) ++{ ++ if (!hrexpiry_enabled(rq)) ++ return; ++ if (hrtimer_active(&rq->hrexpiry_timer)) ++ hrtimer_cancel(&rq->hrexpiry_timer); ++} ++ ++/* ++ * High-resolution time_slice expiry. ++ * Runs from hardirq context with interrupts disabled. ++ */ ++static enum hrtimer_restart hrexpiry(struct hrtimer *timer) ++{ ++ struct rq *rq = container_of(timer, struct rq, hrexpiry_timer); ++ struct task_struct *p; ++ ++ /* This can happen during CPU hotplug / resume */ ++ if (unlikely(cpu_of(rq) != smp_processor_id())) ++ goto out; ++ ++ /* ++ * We're doing this without the runqueue lock but this should always ++ * be run on the local CPU. Time slice should run out in __schedule ++ * but we set it to zero here in case niffies is slightly less. ++ */ ++ p = rq->curr; ++ p->time_slice = 0; ++ __set_tsk_resched(p); ++out: ++ return HRTIMER_NORESTART; ++} ++ ++/* ++ * Called to set the hrexpiry timer state. ++ * ++ * called with irqs disabled from the local CPU only ++ */ ++static void hrexpiry_start(struct rq *rq, u64 delay) ++{ ++ if (!hrexpiry_enabled(rq)) ++ return; ++ ++ hrtimer_start(&rq->hrexpiry_timer, ns_to_ktime(delay), ++ HRTIMER_MODE_REL_PINNED); ++} ++ ++static void init_rq_hrexpiry(struct rq *rq) ++{ ++ hrtimer_init(&rq->hrexpiry_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ rq->hrexpiry_timer.function = hrexpiry; ++} ++ ++static inline int rq_dither(struct rq *rq) ++{ ++ if (!hrexpiry_enabled(rq)) ++ return HALF_JIFFY_US; ++ return 0; ++} ++ ++/* ++ * wake_up_new_task - wake up a newly created task for the first time. ++ * ++ * This function will do some initial scheduler statistics housekeeping ++ * that must be done for every newly created context, then puts the task ++ * on the runqueue and wakes it. ++ */ ++void wake_up_new_task(struct task_struct *p) ++{ ++ struct task_struct *parent, *rq_curr; ++ struct rq *rq, *new_rq; ++ unsigned long flags; ++ ++ parent = p->parent; ++ ++ raw_spin_lock_irqsave(&p->pi_lock, flags); ++ p->state = TASK_RUNNING; ++ /* Task_rq can't change yet on a new task */ ++ new_rq = rq = task_rq(p); ++ if (unlikely(needs_other_cpu(p, task_cpu(p)))) { ++ set_task_cpu(p, valid_task_cpu(p)); ++ new_rq = task_rq(p); ++ } ++ ++ double_rq_lock(rq, new_rq); ++ rq_curr = rq->curr; ++ ++ /* ++ * Make sure we do not leak PI boosting priority to the child. ++ */ ++ p->prio = rq_curr->normal_prio; ++ ++ trace_sched_wakeup_new(p); ++ ++ /* ++ * Share the timeslice between parent and child, thus the ++ * total amount of pending timeslices in the system doesn't change, ++ * resulting in more scheduling fairness. If it's negative, it won't ++ * matter since that's the same as being 0. rq->rq_deadline is only ++ * modified within schedule() so it is always equal to ++ * current->deadline. ++ */ ++ account_task_cpu(rq, rq_curr); ++ p->last_ran = rq_curr->last_ran; ++ if (likely(rq_curr->policy != SCHED_FIFO)) { ++ rq_curr->time_slice /= 2; ++ if (rq_curr->time_slice < RESCHED_US) { ++ /* ++ * Forking task has run out of timeslice. Reschedule it and ++ * start its child with a new time slice and deadline. The ++ * child will end up running first because its deadline will ++ * be slightly earlier. ++ */ ++ __set_tsk_resched(rq_curr); ++ time_slice_expired(p, new_rq); ++ if (suitable_idle_cpus(p)) ++ resched_best_idle(p, task_cpu(p)); ++ else if (unlikely(rq != new_rq)) ++ try_preempt(p, new_rq); ++ } else { ++ p->time_slice = rq_curr->time_slice; ++ if (rq_curr == parent && rq == new_rq && !suitable_idle_cpus(p)) { ++ /* ++ * The VM isn't cloned, so we're in a good position to ++ * do child-runs-first in anticipation of an exec. This ++ * usually avoids a lot of COW overhead. ++ */ ++ __set_tsk_resched(rq_curr); ++ } else { ++ /* ++ * Adjust the hrexpiry since rq_curr will keep ++ * running and its timeslice has been shortened. ++ */ ++ hrexpiry_start(rq, US_TO_NS(rq_curr->time_slice)); ++ try_preempt(p, new_rq); ++ } ++ } ++ } else { ++ time_slice_expired(p, new_rq); ++ try_preempt(p, new_rq); ++ } ++ activate_task(p, new_rq, 0); ++ double_rq_unlock(rq, new_rq); ++ raw_spin_unlock_irqrestore(&p->pi_lock, flags); ++} ++ ++#ifdef CONFIG_PREEMPT_NOTIFIERS ++ ++static DEFINE_STATIC_KEY_FALSE(preempt_notifier_key); ++ ++void preempt_notifier_inc(void) ++{ ++ static_branch_inc(&preempt_notifier_key); ++} ++EXPORT_SYMBOL_GPL(preempt_notifier_inc); ++ ++void preempt_notifier_dec(void) ++{ ++ static_branch_dec(&preempt_notifier_key); ++} ++EXPORT_SYMBOL_GPL(preempt_notifier_dec); ++ ++/** ++ * preempt_notifier_register - tell me when current is being preempted & rescheduled ++ * @notifier: notifier struct to register ++ */ ++void preempt_notifier_register(struct preempt_notifier *notifier) ++{ ++ if (!static_branch_unlikely(&preempt_notifier_key)) ++ WARN(1, "registering preempt_notifier while notifiers disabled\n"); ++ ++ hlist_add_head(¬ifier->link, ¤t->preempt_notifiers); ++} ++EXPORT_SYMBOL_GPL(preempt_notifier_register); ++ ++/** ++ * preempt_notifier_unregister - no longer interested in preemption notifications ++ * @notifier: notifier struct to unregister ++ * ++ * This is *not* safe to call from within a preemption notifier. ++ */ ++void preempt_notifier_unregister(struct preempt_notifier *notifier) ++{ ++ hlist_del(¬ifier->link); ++} ++EXPORT_SYMBOL_GPL(preempt_notifier_unregister); ++ ++static void __fire_sched_in_preempt_notifiers(struct task_struct *curr) ++{ ++ struct preempt_notifier *notifier; ++ ++ hlist_for_each_entry(notifier, &curr->preempt_notifiers, link) ++ notifier->ops->sched_in(notifier, raw_smp_processor_id()); ++} ++ ++static __always_inline void fire_sched_in_preempt_notifiers(struct task_struct *curr) ++{ ++ if (static_branch_unlikely(&preempt_notifier_key)) ++ __fire_sched_in_preempt_notifiers(curr); ++} ++ ++static void ++__fire_sched_out_preempt_notifiers(struct task_struct *curr, ++ struct task_struct *next) ++{ ++ struct preempt_notifier *notifier; ++ ++ hlist_for_each_entry(notifier, &curr->preempt_notifiers, link) ++ notifier->ops->sched_out(notifier, next); ++} ++ ++static __always_inline void ++fire_sched_out_preempt_notifiers(struct task_struct *curr, ++ struct task_struct *next) ++{ ++ if (static_branch_unlikely(&preempt_notifier_key)) ++ __fire_sched_out_preempt_notifiers(curr, next); ++} ++ ++#else /* !CONFIG_PREEMPT_NOTIFIERS */ ++ ++static inline void fire_sched_in_preempt_notifiers(struct task_struct *curr) ++{ ++} ++ ++static inline void ++fire_sched_out_preempt_notifiers(struct task_struct *curr, ++ struct task_struct *next) ++{ ++} ++ ++#endif /* CONFIG_PREEMPT_NOTIFIERS */ ++ ++static inline void prepare_task(struct task_struct *next) ++{ ++ /* ++ * Claim the task as running, we do this before switching to it ++ * such that any running task will have this set. ++ */ ++ next->on_cpu = 1; ++} ++ ++static inline void finish_task(struct task_struct *prev) ++{ ++#ifdef CONFIG_SMP ++ /* ++ * After ->on_cpu is cleared, the task can be moved to a different CPU. ++ * We must ensure this doesn't happen until the switch is completely ++ * finished. ++ * ++ * In particular, the load of prev->state in finish_task_switch() must ++ * happen before this. ++ * ++ * Pairs with the smp_cond_load_acquire() in try_to_wake_up(). ++ */ ++ smp_store_release(&prev->on_cpu, 0); ++#endif ++} ++ ++static inline void ++prepare_lock_switch(struct rq *rq, struct task_struct *next) ++{ ++ /* ++ * Since the runqueue lock will be released by the next ++ * task (which is an invalid locking op but in the case ++ * of the scheduler it's an obvious special-case), so we ++ * do an early lockdep release here: ++ */ ++ spin_release(&rq->lock.dep_map, 1, _THIS_IP_); ++#ifdef CONFIG_DEBUG_SPINLOCK ++ /* this is a valid case when another task releases the spinlock */ ++ rq->lock.owner = next; ++#endif ++} ++ ++static inline void finish_lock_switch(struct rq *rq, struct task_struct *prev) ++{ ++ /* ++ * If we are tracking spinlock dependencies then we have to ++ * fix up the runqueue lock - which gets 'carried over' from ++ * prev into current: ++ */ ++ spin_acquire(&rq->lock.dep_map, 0, 0, _THIS_IP_); ++ ++#ifdef CONFIG_SMP ++ /* ++ * If prev was marked as migrating to another CPU in return_task, drop ++ * the local runqueue lock but leave interrupts disabled and grab the ++ * remote lock we're migrating it to before enabling them. ++ */ ++ if (unlikely(task_on_rq_migrating(prev))) { ++ sched_info_dequeued(rq, prev); ++ /* ++ * We move the ownership of prev to the new cpu now. ttwu can't ++ * activate prev to the wrong cpu since it has to grab this ++ * runqueue in ttwu_remote. ++ */ ++#ifdef CONFIG_THREAD_INFO_IN_TASK ++ prev->cpu = prev->wake_cpu; ++#else ++ task_thread_info(prev)->cpu = prev->wake_cpu; ++#endif ++ raw_spin_unlock(rq->lock); ++ ++ raw_spin_lock(&prev->pi_lock); ++ rq = __task_rq_lock(prev, NULL); ++ /* Check that someone else hasn't already queued prev */ ++ if (likely(!task_queued(prev))) { ++ enqueue_task(rq, prev, 0); ++ prev->on_rq = TASK_ON_RQ_QUEUED; ++ /* Wake up the CPU if it's not already running */ ++ resched_if_idle(rq); ++ } ++ raw_spin_unlock(&prev->pi_lock); ++ } ++#endif ++ rq_unlock(rq); ++ ++ do_pending_softirq(rq, current); ++ ++ local_irq_enable(); ++} ++ ++#ifndef prepare_arch_switch ++# define prepare_arch_switch(next) do { } while (0) ++#endif ++#ifndef finish_arch_switch ++# define finish_arch_switch(prev) do { } while (0) ++#endif ++#ifndef finish_arch_post_lock_switch ++# define finish_arch_post_lock_switch() do { } while (0) ++#endif ++ ++/** ++ * prepare_task_switch - prepare to switch tasks ++ * @rq: the runqueue preparing to switch ++ * @next: the task we are going to switch to. ++ * ++ * This is called with the rq lock held and interrupts off. It must ++ * be paired with a subsequent finish_task_switch after the context ++ * switch. ++ * ++ * prepare_task_switch sets up locking and calls architecture specific ++ * hooks. ++ */ ++static inline void ++prepare_task_switch(struct rq *rq, struct task_struct *prev, ++ struct task_struct *next) ++{ ++ kcov_prepare_switch(prev); ++ sched_info_switch(rq, prev, next); ++ perf_event_task_sched_out(prev, next); ++ rseq_preempt(prev); ++ fire_sched_out_preempt_notifiers(prev, next); ++ prepare_task(next); ++ prepare_arch_switch(next); ++} ++ ++/** ++ * finish_task_switch - clean up after a task-switch ++ * @rq: runqueue associated with task-switch ++ * @prev: the thread we just switched away from. ++ * ++ * finish_task_switch must be called after the context switch, paired ++ * with a prepare_task_switch call before the context switch. ++ * finish_task_switch will reconcile locking set up by prepare_task_switch, ++ * and do any other architecture-specific cleanup actions. ++ * ++ * Note that we may have delayed dropping an mm in context_switch(). If ++ * so, we finish that here outside of the runqueue lock. (Doing it ++ * with the lock held can cause deadlocks; see schedule() for ++ * details.) ++ * ++ * The context switch have flipped the stack from under us and restored the ++ * local variables which were saved when this task called schedule() in the ++ * past. prev == current is still correct but we need to recalculate this_rq ++ * because prev may have moved to another CPU. ++ */ ++static void finish_task_switch(struct task_struct *prev) ++ __releases(rq->lock) ++{ ++ struct rq *rq = this_rq(); ++ struct mm_struct *mm = rq->prev_mm; ++ long prev_state; ++ ++ /* ++ * The previous task will have left us with a preempt_count of 2 ++ * because it left us after: ++ * ++ * schedule() ++ * preempt_disable(); // 1 ++ * __schedule() ++ * raw_spin_lock_irq(rq->lock) // 2 ++ * ++ * Also, see FORK_PREEMPT_COUNT. ++ */ ++ if (WARN_ONCE(preempt_count() != 2*PREEMPT_DISABLE_OFFSET, ++ "corrupted preempt_count: %s/%d/0x%x\n", ++ current->comm, current->pid, preempt_count())) ++ preempt_count_set(FORK_PREEMPT_COUNT); ++ ++ rq->prev_mm = NULL; ++ ++ /* ++ * A task struct has one reference for the use as "current". ++ * If a task dies, then it sets TASK_DEAD in tsk->state and calls ++ * schedule one last time. The schedule call will never return, and ++ * the scheduled task must drop that reference. ++ * ++ * We must observe prev->state before clearing prev->on_cpu (in ++ * finish_task), otherwise a concurrent wakeup can get prev ++ * running on another CPU and we could rave with its RUNNING -> DEAD ++ * transition, resulting in a double drop. ++ */ ++ prev_state = prev->state; ++ vtime_task_switch(prev); ++ perf_event_task_sched_in(prev, current); ++ finish_task(prev); ++ finish_lock_switch(rq, prev); ++ finish_arch_post_lock_switch(); ++ kcov_finish_switch(current); ++ ++ fire_sched_in_preempt_notifiers(current); ++ /* ++ * When switching through a kernel thread, the loop in ++ * membarrier_{private,global}_expedited() may have observed that ++ * kernel thread and not issued an IPI. It is therefore possible to ++ * schedule between user->kernel->user threads without passing though ++ * switch_mm(). Membarrier requires a barrier after storing to ++ * rq->curr, before returning to userspace, so provide them here: ++ * ++ * - a full memory barrier for {PRIVATE,GLOBAL}_EXPEDITED, implicitly ++ * provided by mmdrop(), ++ * - a sync_core for SYNC_CORE. ++ */ ++ if (mm) { ++ membarrier_mm_sync_core_before_usermode(mm); ++ mmdrop(mm); ++ } ++ if (unlikely(prev_state == TASK_DEAD)) { ++ /* ++ * Remove function-return probe instances associated with this ++ * task and put them back on the free list. ++ */ ++ kprobe_flush_task(prev); ++ ++ /* Task is done with its stack. */ ++ put_task_stack(prev); ++ ++ put_task_struct(prev); ++ } ++} ++ ++/** ++ * schedule_tail - first thing a freshly forked thread must call. ++ * @prev: the thread we just switched away from. ++ */ ++asmlinkage __visible void schedule_tail(struct task_struct *prev) ++{ ++ /* ++ * New tasks start with FORK_PREEMPT_COUNT, see there and ++ * finish_task_switch() for details. ++ * ++ * finish_task_switch() will drop rq->lock() and lower preempt_count ++ * and the preempt_enable() will end up enabling preemption (on ++ * PREEMPT_COUNT kernels). ++ */ ++ ++ finish_task_switch(prev); ++ preempt_enable(); ++ ++ if (current->set_child_tid) ++ put_user(task_pid_vnr(current), current->set_child_tid); ++ ++ calculate_sigpending(); ++} ++ ++/* ++ * context_switch - switch to the new MM and the new thread's register state. ++ */ ++static __always_inline void ++context_switch(struct rq *rq, struct task_struct *prev, ++ struct task_struct *next) ++{ ++ struct mm_struct *mm, *oldmm; ++ ++ prepare_task_switch(rq, prev, next); ++ ++ mm = next->mm; ++ oldmm = prev->active_mm; ++ /* ++ * For paravirt, this is coupled with an exit in switch_to to ++ * combine the page table reload and the switch backend into ++ * one hypercall. ++ */ ++ arch_start_context_switch(prev); ++ ++ /* ++ * If mm is non-NULL, we pass through switch_mm(). If mm is ++ * NULL, we will pass through mmdrop() in finish_task_switch(). ++ * Both of these contain the full memory barrier required by ++ * membarrier after storing to rq->curr, before returning to ++ * user-space. ++ */ ++ if (!mm) { ++ next->active_mm = oldmm; ++ mmgrab(oldmm); ++ enter_lazy_tlb(oldmm, next); ++ } else ++ switch_mm_irqs_off(oldmm, mm, next); ++ ++ if (!prev->mm) { ++ prev->active_mm = NULL; ++ rq->prev_mm = oldmm; ++ } ++ prepare_lock_switch(rq, next); ++ ++ /* Here we just switch the register state and the stack. */ ++ switch_to(prev, next, prev); ++ barrier(); ++ ++ finish_task_switch(prev); ++} ++ ++/* ++ * nr_running, nr_uninterruptible and nr_context_switches: ++ * ++ * externally visible scheduler statistics: current number of runnable ++ * threads, total number of context switches performed since bootup. ++ */ ++unsigned long nr_running(void) ++{ ++ unsigned long i, sum = 0; ++ ++ for_each_online_cpu(i) ++ sum += cpu_rq(i)->nr_running; ++ ++ return sum; ++} ++ ++static unsigned long nr_uninterruptible(void) ++{ ++ unsigned long i, sum = 0; ++ ++ for_each_online_cpu(i) ++ sum += cpu_rq(i)->nr_uninterruptible; ++ ++ return sum; ++} ++ ++/* ++ * Check if only the current task is running on the CPU. ++ * ++ * Caution: this function does not check that the caller has disabled ++ * preemption, thus the result might have a time-of-check-to-time-of-use ++ * race. The caller is responsible to use it correctly, for example: ++ * ++ * - from a non-preemptable section (of course) ++ * ++ * - from a thread that is bound to a single CPU ++ * ++ * - in a loop with very short iterations (e.g. a polling loop) ++ */ ++bool single_task_running(void) ++{ ++ struct rq *rq = cpu_rq(smp_processor_id()); ++ ++ if (rq_load(rq) == 1) ++ return true; ++ else ++ return false; ++} ++EXPORT_SYMBOL(single_task_running); ++ ++unsigned long long nr_context_switches(void) ++{ ++ int i; ++ unsigned long long sum = 0; ++ ++ for_each_possible_cpu(i) ++ sum += cpu_rq(i)->nr_switches; ++ ++ return sum; ++} ++ ++/* ++ * Consumers of these two interfaces, like for example the cpufreq menu ++ * governor are using nonsensical data. Boosting frequency for a CPU that has ++ * IO-wait which might not even end up running the task when it does become ++ * runnable. ++ */ ++ ++unsigned long nr_iowait_cpu(int cpu) ++{ ++ return atomic_read(&cpu_rq(cpu)->nr_iowait); ++} ++ ++/* ++ * IO-wait accounting, and how its mostly bollocks (on SMP). ++ * ++ * The idea behind IO-wait account is to account the idle time that we could ++ * have spend running if it were not for IO. That is, if we were to improve the ++ * storage performance, we'd have a proportional reduction in IO-wait time. ++ * ++ * This all works nicely on UP, where, when a task blocks on IO, we account ++ * idle time as IO-wait, because if the storage were faster, it could've been ++ * running and we'd not be idle. ++ * ++ * This has been extended to SMP, by doing the same for each CPU. This however ++ * is broken. ++ * ++ * Imagine for instance the case where two tasks block on one CPU, only the one ++ * CPU will have IO-wait accounted, while the other has regular idle. Even ++ * though, if the storage were faster, both could've ran at the same time, ++ * utilising both CPUs. ++ * ++ * This means, that when looking globally, the current IO-wait accounting on ++ * SMP is a lower bound, by reason of under accounting. ++ * ++ * Worse, since the numbers are provided per CPU, they are sometimes ++ * interpreted per CPU, and that is nonsensical. A blocked task isn't strictly ++ * associated with any one particular CPU, it can wake to another CPU than it ++ * blocked on. This means the per CPU IO-wait number is meaningless. ++ * ++ * Task CPU affinities can make all that even more 'interesting'. ++ */ ++ ++unsigned long nr_iowait(void) ++{ ++ unsigned long i, sum = 0; ++ ++ for_each_possible_cpu(i) ++ sum += nr_iowait_cpu(i); ++ ++ return sum; ++} ++ ++unsigned long nr_active(void) ++{ ++ return nr_running() + nr_uninterruptible(); ++} ++ ++/* Variables and functions for calc_load */ ++static unsigned long calc_load_update; ++unsigned long avenrun[3]; ++EXPORT_SYMBOL(avenrun); ++ ++/** ++ * get_avenrun - get the load average array ++ * @loads: pointer to dest load array ++ * @offset: offset to add ++ * @shift: shift count to shift the result left ++ * ++ * These values are estimates at best, so no need for locking. ++ */ ++void get_avenrun(unsigned long *loads, unsigned long offset, int shift) ++{ ++ loads[0] = (avenrun[0] + offset) << shift; ++ loads[1] = (avenrun[1] + offset) << shift; ++ loads[2] = (avenrun[2] + offset) << shift; ++} ++ ++/* ++ * calc_load - update the avenrun load estimates every LOAD_FREQ seconds. ++ */ ++void calc_global_load(unsigned long ticks) ++{ ++ long active; ++ ++ if (time_before(jiffies, READ_ONCE(calc_load_update))) ++ return; ++ active = nr_active() * FIXED_1; ++ ++ avenrun[0] = calc_load(avenrun[0], EXP_1, active); ++ avenrun[1] = calc_load(avenrun[1], EXP_5, active); ++ avenrun[2] = calc_load(avenrun[2], EXP_15, active); ++ ++ calc_load_update = jiffies + LOAD_FREQ; ++} ++ ++/** ++ * fixed_power_int - compute: x^n, in O(log n) time ++ * ++ * @x: base of the power ++ * @frac_bits: fractional bits of @x ++ * @n: power to raise @x to. ++ * ++ * By exploiting the relation between the definition of the natural power ++ * function: x^n := x*x*...*x (x multiplied by itself for n times), and ++ * the binary encoding of numbers used by computers: n := \Sum n_i * 2^i, ++ * (where: n_i \elem {0, 1}, the binary vector representing n), ++ * we find: x^n := x^(\Sum n_i * 2^i) := \Prod x^(n_i * 2^i), which is ++ * of course trivially computable in O(log_2 n), the length of our binary ++ * vector. ++ */ ++static unsigned long ++fixed_power_int(unsigned long x, unsigned int frac_bits, unsigned int n) ++{ ++ unsigned long result = 1UL << frac_bits; ++ ++ if (n) { ++ for (;;) { ++ if (n & 1) { ++ result *= x; ++ result += 1UL << (frac_bits - 1); ++ result >>= frac_bits; ++ } ++ n >>= 1; ++ if (!n) ++ break; ++ x *= x; ++ x += 1UL << (frac_bits - 1); ++ x >>= frac_bits; ++ } ++ } ++ ++ return result; ++} ++ ++/* ++ * a1 = a0 * e + a * (1 - e) ++ * ++ * a2 = a1 * e + a * (1 - e) ++ * = (a0 * e + a * (1 - e)) * e + a * (1 - e) ++ * = a0 * e^2 + a * (1 - e) * (1 + e) ++ * ++ * a3 = a2 * e + a * (1 - e) ++ * = (a0 * e^2 + a * (1 - e) * (1 + e)) * e + a * (1 - e) ++ * = a0 * e^3 + a * (1 - e) * (1 + e + e^2) ++ * ++ * ... ++ * ++ * an = a0 * e^n + a * (1 - e) * (1 + e + ... + e^n-1) [1] ++ * = a0 * e^n + a * (1 - e) * (1 - e^n)/(1 - e) ++ * = a0 * e^n + a * (1 - e^n) ++ * ++ * [1] application of the geometric series: ++ * ++ * n 1 - x^(n+1) ++ * S_n := \Sum x^i = ------------- ++ * i=0 1 - x ++ */ ++unsigned long ++calc_load_n(unsigned long load, unsigned long exp, ++ unsigned long active, unsigned int n) ++{ ++ return calc_load(load, fixed_power_int(exp, FSHIFT, n), active); ++} ++ ++DEFINE_PER_CPU(struct kernel_stat, kstat); ++DEFINE_PER_CPU(struct kernel_cpustat, kernel_cpustat); ++ ++EXPORT_PER_CPU_SYMBOL(kstat); ++EXPORT_PER_CPU_SYMBOL(kernel_cpustat); ++ ++#ifdef CONFIG_PARAVIRT ++static inline u64 steal_ticks(u64 steal) ++{ ++ if (unlikely(steal > NSEC_PER_SEC)) ++ return div_u64(steal, TICK_NSEC); ++ ++ return __iter_div_u64_rem(steal, TICK_NSEC, &steal); ++} ++#endif ++ ++#ifndef nsecs_to_cputime ++# define nsecs_to_cputime(__nsecs) nsecs_to_jiffies(__nsecs) ++#endif ++ ++/* ++ * On each tick, add the number of nanoseconds to the unbanked variables and ++ * once one tick's worth has accumulated, account it allowing for accurate ++ * sub-tick accounting and totals. Use the TICK_APPROX_NS to match the way we ++ * deduct nanoseconds. ++ */ ++static void pc_idle_time(struct rq *rq, struct task_struct *idle, unsigned long ns) ++{ ++ u64 *cpustat = kcpustat_this_cpu->cpustat; ++ unsigned long ticks; ++ ++ if (atomic_read(&rq->nr_iowait) > 0) { ++ rq->iowait_ns += ns; ++ if (rq->iowait_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->iowait_ns); ++ cpustat[CPUTIME_IOWAIT] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->iowait_ns %= JIFFY_NS; ++ } ++ } else { ++ rq->idle_ns += ns; ++ if (rq->idle_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->idle_ns); ++ cpustat[CPUTIME_IDLE] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->idle_ns %= JIFFY_NS; ++ } ++ } ++ acct_update_integrals(idle); ++} ++ ++static void pc_system_time(struct rq *rq, struct task_struct *p, ++ int hardirq_offset, unsigned long ns) ++{ ++ u64 *cpustat = kcpustat_this_cpu->cpustat; ++ unsigned long ticks; ++ ++ p->stime_ns += ns; ++ if (p->stime_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(p->stime_ns); ++ p->stime_ns %= JIFFY_NS; ++ p->stime += (__force u64)TICK_APPROX_NS * ticks; ++ account_group_system_time(p, TICK_APPROX_NS * ticks); ++ } ++ p->sched_time += ns; ++ account_group_exec_runtime(p, ns); ++ ++ if (hardirq_count() - hardirq_offset) { ++ rq->irq_ns += ns; ++ if (rq->irq_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->irq_ns); ++ cpustat[CPUTIME_IRQ] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->irq_ns %= JIFFY_NS; ++ } ++ } else if (in_serving_softirq()) { ++ rq->softirq_ns += ns; ++ if (rq->softirq_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->softirq_ns); ++ cpustat[CPUTIME_SOFTIRQ] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->softirq_ns %= JIFFY_NS; ++ } ++ } else { ++ rq->system_ns += ns; ++ if (rq->system_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->system_ns); ++ cpustat[CPUTIME_SYSTEM] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->system_ns %= JIFFY_NS; ++ } ++ } ++ acct_update_integrals(p); ++} ++ ++static void pc_user_time(struct rq *rq, struct task_struct *p, unsigned long ns) ++{ ++ u64 *cpustat = kcpustat_this_cpu->cpustat; ++ unsigned long ticks; ++ ++ p->utime_ns += ns; ++ if (p->utime_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(p->utime_ns); ++ p->utime_ns %= JIFFY_NS; ++ p->utime += (__force u64)TICK_APPROX_NS * ticks; ++ account_group_user_time(p, TICK_APPROX_NS * ticks); ++ } ++ p->sched_time += ns; ++ account_group_exec_runtime(p, ns); ++ ++ if (this_cpu_ksoftirqd() == p) { ++ /* ++ * ksoftirqd time do not get accounted in cpu_softirq_time. ++ * So, we have to handle it separately here. ++ */ ++ rq->softirq_ns += ns; ++ if (rq->softirq_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->softirq_ns); ++ cpustat[CPUTIME_SOFTIRQ] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->softirq_ns %= JIFFY_NS; ++ } ++ } ++ ++ if (task_nice(p) > 0 || idleprio_task(p)) { ++ rq->nice_ns += ns; ++ if (rq->nice_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->nice_ns); ++ cpustat[CPUTIME_NICE] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->nice_ns %= JIFFY_NS; ++ } ++ } else { ++ rq->user_ns += ns; ++ if (rq->user_ns >= JIFFY_NS) { ++ ticks = NS_TO_JIFFIES(rq->user_ns); ++ cpustat[CPUTIME_USER] += (__force u64)TICK_APPROX_NS * ticks; ++ rq->user_ns %= JIFFY_NS; ++ } ++ } ++ acct_update_integrals(p); ++} ++ ++/* ++ * This is called on clock ticks. ++ * Bank in p->sched_time the ns elapsed since the last tick or switch. ++ * CPU scheduler quota accounting is also performed here in microseconds. ++ */ ++static void update_cpu_clock_tick(struct rq *rq, struct task_struct *p) ++{ ++ s64 account_ns = rq->niffies - p->last_ran; ++ struct task_struct *idle = rq->idle; ++ ++ /* Accurate tick timekeeping */ ++ if (user_mode(get_irq_regs())) ++ pc_user_time(rq, p, account_ns); ++ else if (p != idle || (irq_count() != HARDIRQ_OFFSET)) { ++ pc_system_time(rq, p, HARDIRQ_OFFSET, account_ns); ++ } else ++ pc_idle_time(rq, idle, account_ns); ++ ++ /* time_slice accounting is done in usecs to avoid overflow on 32bit */ ++ if (p->policy != SCHED_FIFO && p != idle) ++ p->time_slice -= NS_TO_US(account_ns); ++ ++ p->last_ran = rq->niffies; ++} ++ ++/* ++ * This is called on context switches. ++ * Bank in p->sched_time the ns elapsed since the last tick or switch. ++ * CPU scheduler quota accounting is also performed here in microseconds. ++ */ ++static void update_cpu_clock_switch(struct rq *rq, struct task_struct *p) ++{ ++ s64 account_ns = rq->niffies - p->last_ran; ++ struct task_struct *idle = rq->idle; ++ ++ /* Accurate subtick timekeeping */ ++ if (p != idle) ++ pc_user_time(rq, p, account_ns); ++ else ++ pc_idle_time(rq, idle, account_ns); ++ ++ /* time_slice accounting is done in usecs to avoid overflow on 32bit */ ++ if (p->policy != SCHED_FIFO && p != idle) ++ p->time_slice -= NS_TO_US(account_ns); ++} ++ ++/* ++ * Return any ns on the sched_clock that have not yet been accounted in ++ * @p in case that task is currently running. ++ * ++ * Called with task_rq_lock(p) held. ++ */ ++static inline u64 do_task_delta_exec(struct task_struct *p, struct rq *rq) ++{ ++ u64 ns = 0; ++ ++ /* ++ * Must be ->curr _and_ ->on_rq. If dequeued, we would ++ * project cycles that may never be accounted to this ++ * thread, breaking clock_gettime(). ++ */ ++ if (p == rq->curr && task_on_rq_queued(p)) { ++ update_clocks(rq); ++ ns = rq->niffies - p->last_ran; ++ } ++ ++ return ns; ++} ++ ++/* ++ * Return accounted runtime for the task. ++ * Return separately the current's pending runtime that have not been ++ * accounted yet. ++ * ++ */ ++unsigned long long task_sched_runtime(struct task_struct *p) ++{ ++ struct rq_flags rf; ++ struct rq *rq; ++ u64 ns; ++ ++#if defined(CONFIG_64BIT) && defined(CONFIG_SMP) ++ /* ++ * 64-bit doesn't need locks to atomically read a 64-bit value. ++ * So we have a optimisation chance when the task's delta_exec is 0. ++ * Reading ->on_cpu is racy, but this is ok. ++ * ++ * If we race with it leaving CPU, we'll take a lock. So we're correct. ++ * If we race with it entering CPU, unaccounted time is 0. This is ++ * indistinguishable from the read occurring a few cycles earlier. ++ * If we see ->on_cpu without ->on_rq, the task is leaving, and has ++ * been accounted, so we're correct here as well. ++ */ ++ if (!p->on_cpu || !task_on_rq_queued(p)) ++ return tsk_seruntime(p); ++#endif ++ ++ rq = task_rq_lock(p, &rf); ++ ns = p->sched_time + do_task_delta_exec(p, rq); ++ task_rq_unlock(rq, p, &rf); ++ ++ return ns; ++} ++ ++/* ++ * Functions to test for when SCHED_ISO tasks have used their allocated ++ * quota as real time scheduling and convert them back to SCHED_NORMAL. All ++ * data is modified only by the local runqueue during scheduler_tick with ++ * interrupts disabled. ++ */ ++ ++/* ++ * Test if SCHED_ISO tasks have run longer than their alloted period as RT ++ * tasks and set the refractory flag if necessary. There is 10% hysteresis ++ * for unsetting the flag. 115/128 is ~90/100 as a fast shift instead of a ++ * slow division. ++ */ ++static inline void iso_tick(struct rq *rq) ++{ ++ rq->iso_ticks = rq->iso_ticks * (ISO_PERIOD - 1) / ISO_PERIOD; ++ rq->iso_ticks += 100; ++ if (rq->iso_ticks > ISO_PERIOD * sched_iso_cpu) { ++ rq->iso_refractory = true; ++ if (unlikely(rq->iso_ticks > ISO_PERIOD * 100)) ++ rq->iso_ticks = ISO_PERIOD * 100; ++ } ++} ++ ++/* No SCHED_ISO task was running so decrease rq->iso_ticks */ ++static inline void no_iso_tick(struct rq *rq, int ticks) ++{ ++ if (rq->iso_ticks > 0 || rq->iso_refractory) { ++ rq->iso_ticks = rq->iso_ticks * (ISO_PERIOD - ticks) / ISO_PERIOD; ++ if (rq->iso_ticks < ISO_PERIOD * (sched_iso_cpu * 115 / 128)) { ++ rq->iso_refractory = false; ++ if (unlikely(rq->iso_ticks < 0)) ++ rq->iso_ticks = 0; ++ } ++ } ++} ++ ++/* This manages tasks that have run out of timeslice during a scheduler_tick */ ++static void task_running_tick(struct rq *rq) ++{ ++ struct task_struct *p = rq->curr; ++ ++ /* ++ * If a SCHED_ISO task is running we increment the iso_ticks. In ++ * order to prevent SCHED_ISO tasks from causing starvation in the ++ * presence of true RT tasks we account those as iso_ticks as well. ++ */ ++ if (rt_task(p) || task_running_iso(p)) ++ iso_tick(rq); ++ else ++ no_iso_tick(rq, 1); ++ ++ /* SCHED_FIFO tasks never run out of timeslice. */ ++ if (p->policy == SCHED_FIFO) ++ return; ++ ++ if (iso_task(p)) { ++ if (task_running_iso(p)) { ++ if (rq->iso_refractory) { ++ /* ++ * SCHED_ISO task is running as RT and limit ++ * has been hit. Force it to reschedule as ++ * SCHED_NORMAL by zeroing its time_slice ++ */ ++ p->time_slice = 0; ++ } ++ } else if (!rq->iso_refractory) { ++ /* Can now run again ISO. Reschedule to pick up prio */ ++ goto out_resched; ++ } ++ } ++ ++ /* ++ * Tasks that were scheduled in the first half of a tick are not ++ * allowed to run into the 2nd half of the next tick if they will ++ * run out of time slice in the interim. Otherwise, if they have ++ * less than RESCHED_US μs of time slice left they will be rescheduled. ++ * Dither is used as a backup for when hrexpiry is disabled or high res ++ * timers not configured in. ++ */ ++ if (p->time_slice - rq->dither >= RESCHED_US) ++ return; ++out_resched: ++ rq_lock(rq); ++ __set_tsk_resched(p); ++ rq_unlock(rq); ++} ++ ++static inline void task_tick(struct rq *rq) ++{ ++ if (!rq_idle(rq)) ++ task_running_tick(rq); ++ else if (rq->last_jiffy > rq->last_scheduler_tick) ++ no_iso_tick(rq, rq->last_jiffy - rq->last_scheduler_tick); ++} ++ ++#ifdef CONFIG_NO_HZ_FULL ++/* ++ * We can stop the timer tick any time highres timers are active since ++ * we rely entirely on highres timeouts for task expiry rescheduling. ++ */ ++static void sched_stop_tick(struct rq *rq, int cpu) ++{ ++ if (!hrexpiry_enabled(rq)) ++ return; ++ if (!tick_nohz_full_enabled()) ++ return; ++ if (!tick_nohz_full_cpu(cpu)) ++ return; ++ tick_nohz_dep_clear_cpu(cpu, TICK_DEP_BIT_SCHED); ++} ++ ++static inline void sched_start_tick(struct rq *rq, int cpu) ++{ ++ tick_nohz_dep_set_cpu(cpu, TICK_DEP_BIT_SCHED); ++} ++ ++struct tick_work { ++ int cpu; ++ struct delayed_work work; ++}; ++ ++static struct tick_work __percpu *tick_work_cpu; ++ ++static void sched_tick_remote(struct work_struct *work) ++{ ++ struct delayed_work *dwork = to_delayed_work(work); ++ struct tick_work *twork = container_of(dwork, struct tick_work, work); ++ int cpu = twork->cpu; ++ struct rq *rq = cpu_rq(cpu); ++ struct task_struct *curr; ++ u64 delta; ++ ++ /* ++ * Handle the tick only if it appears the remote CPU is running in full ++ * dynticks mode. The check is racy by nature, but missing a tick or ++ * having one too much is no big deal because the scheduler tick updates ++ * statistics and checks timeslices in a time-independent way, regardless ++ * of when exactly it is running. ++ */ ++ if (idle_cpu(cpu) || !tick_nohz_tick_stopped_cpu(cpu)) ++ goto out_requeue; ++ ++ rq_lock_irq(rq); ++ curr = rq->curr; ++ if (is_idle_task(curr)) ++ goto out_unlock; ++ ++ update_rq_clock(rq); ++ delta = rq_clock_task(rq) - curr->last_ran; ++ ++ /* ++ * Make sure the next tick runs within a reasonable ++ * amount of time. ++ */ ++ WARN_ON_ONCE(delta > (u64)NSEC_PER_SEC * 3); ++ task_tick(rq); ++ ++out_unlock: ++ rq_unlock_irq(rq, NULL); ++ ++out_requeue: ++ /* ++ * Run the remote tick once per second (1Hz). This arbitrary ++ * frequency is large enough to avoid overload but short enough ++ * to keep scheduler internal stats reasonably up to date. ++ */ ++ queue_delayed_work(system_unbound_wq, dwork, HZ); ++} ++ ++static void sched_tick_start(int cpu) ++{ ++ struct tick_work *twork; ++ ++ if (housekeeping_cpu(cpu, HK_FLAG_TICK)) ++ return; ++ ++ WARN_ON_ONCE(!tick_work_cpu); ++ ++ twork = per_cpu_ptr(tick_work_cpu, cpu); ++ twork->cpu = cpu; ++ INIT_DELAYED_WORK(&twork->work, sched_tick_remote); ++ queue_delayed_work(system_unbound_wq, &twork->work, HZ); ++} ++ ++#ifdef CONFIG_HOTPLUG_CPU ++static void sched_tick_stop(int cpu) ++{ ++ struct tick_work *twork; ++ ++ if (housekeeping_cpu(cpu, HK_FLAG_TICK)) ++ return; ++ ++ WARN_ON_ONCE(!tick_work_cpu); ++ ++ twork = per_cpu_ptr(tick_work_cpu, cpu); ++ cancel_delayed_work_sync(&twork->work); ++} ++#endif /* CONFIG_HOTPLUG_CPU */ ++ ++int __init sched_tick_offload_init(void) ++{ ++ tick_work_cpu = alloc_percpu(struct tick_work); ++ BUG_ON(!tick_work_cpu); ++ ++ return 0; ++} ++ ++#else /* !CONFIG_NO_HZ_FULL */ ++static inline void sched_stop_tick(struct rq *rq, int cpu) {} ++static inline void sched_start_tick(struct rq *rq, int cpu) {} ++static inline void sched_tick_start(int cpu) { } ++static inline void sched_tick_stop(int cpu) { } ++#endif ++ ++/* ++ * This function gets called by the timer code, with HZ frequency. ++ * We call it with interrupts disabled. ++ */ ++void scheduler_tick(void) ++{ ++ int cpu __maybe_unused = smp_processor_id(); ++ struct rq *rq = cpu_rq(cpu); ++ ++ sched_clock_tick(); ++ update_clocks(rq); ++ update_load_avg(rq, 0); ++ update_cpu_clock_tick(rq, rq->curr); ++ task_tick(rq); ++ rq->last_scheduler_tick = rq->last_jiffy; ++ rq->last_tick = rq->clock; ++ psi_task_tick(rq); ++ perf_event_task_tick(); ++ sched_stop_tick(rq, cpu); ++} ++ ++#if defined(CONFIG_PREEMPT) && (defined(CONFIG_DEBUG_PREEMPT) || \ ++ defined(CONFIG_TRACE_PREEMPT_TOGGLE)) ++/* ++ * If the value passed in is equal to the current preempt count ++ * then we just disabled preemption. Start timing the latency. ++ */ ++static inline void preempt_latency_start(int val) ++{ ++ if (preempt_count() == val) { ++ unsigned long ip = get_lock_parent_ip(); ++#ifdef CONFIG_DEBUG_PREEMPT ++ current->preempt_disable_ip = ip; ++#endif ++ trace_preempt_off(CALLER_ADDR0, ip); ++ } ++} ++ ++void preempt_count_add(int val) ++{ ++#ifdef CONFIG_DEBUG_PREEMPT ++ /* ++ * Underflow? ++ */ ++ if (DEBUG_LOCKS_WARN_ON((preempt_count() < 0))) ++ return; ++#endif ++ __preempt_count_add(val); ++#ifdef CONFIG_DEBUG_PREEMPT ++ /* ++ * Spinlock count overflowing soon? ++ */ ++ DEBUG_LOCKS_WARN_ON((preempt_count() & PREEMPT_MASK) >= ++ PREEMPT_MASK - 10); ++#endif ++ preempt_latency_start(val); ++} ++EXPORT_SYMBOL(preempt_count_add); ++NOKPROBE_SYMBOL(preempt_count_add); ++ ++/* ++ * If the value passed in equals to the current preempt count ++ * then we just enabled preemption. Stop timing the latency. ++ */ ++static inline void preempt_latency_stop(int val) ++{ ++ if (preempt_count() == val) ++ trace_preempt_on(CALLER_ADDR0, get_lock_parent_ip()); ++} ++ ++void preempt_count_sub(int val) ++{ ++#ifdef CONFIG_DEBUG_PREEMPT ++ /* ++ * Underflow? ++ */ ++ if (DEBUG_LOCKS_WARN_ON(val > preempt_count())) ++ return; ++ /* ++ * Is the spinlock portion underflowing? ++ */ ++ if (DEBUG_LOCKS_WARN_ON((val < PREEMPT_MASK) && ++ !(preempt_count() & PREEMPT_MASK))) ++ return; ++#endif ++ ++ preempt_latency_stop(val); ++ __preempt_count_sub(val); ++} ++EXPORT_SYMBOL(preempt_count_sub); ++NOKPROBE_SYMBOL(preempt_count_sub); ++ ++#else ++static inline void preempt_latency_start(int val) { } ++static inline void preempt_latency_stop(int val) { } ++#endif ++ ++static inline unsigned long get_preempt_disable_ip(struct task_struct *p) ++{ ++#ifdef CONFIG_DEBUG_PREEMPT ++ return p->preempt_disable_ip; ++#else ++ return 0; ++#endif ++} ++ ++/* ++ * The time_slice is only refilled when it is empty and that is when we set a ++ * new deadline. Make sure update_clocks has been called recently to update ++ * rq->niffies. ++ */ ++static void time_slice_expired(struct task_struct *p, struct rq *rq) ++{ ++ p->time_slice = timeslice(); ++ p->deadline = rq->niffies + task_deadline_diff(p); ++#ifdef CONFIG_SMT_NICE ++ if (!p->mm) ++ p->smt_bias = 0; ++ else if (rt_task(p)) ++ p->smt_bias = 1 << 30; ++ else if (task_running_iso(p)) ++ p->smt_bias = 1 << 29; ++ else if (idleprio_task(p)) { ++ if (task_running_idle(p)) ++ p->smt_bias = 0; ++ else ++ p->smt_bias = 1; ++ } else if (--p->smt_bias < 1) ++ p->smt_bias = MAX_PRIO - p->static_prio; ++#endif ++} ++ ++/* ++ * Timeslices below RESCHED_US are considered as good as expired as there's no ++ * point rescheduling when there's so little time left. SCHED_BATCH tasks ++ * have been flagged be not latency sensitive and likely to be fully CPU ++ * bound so every time they're rescheduled they have their time_slice ++ * refilled, but get a new later deadline to have little effect on ++ * SCHED_NORMAL tasks. ++ ++ */ ++static inline void check_deadline(struct task_struct *p, struct rq *rq) ++{ ++ if (p->time_slice < RESCHED_US || batch_task(p)) ++ time_slice_expired(p, rq); ++} ++ ++/* ++ * Task selection with skiplists is a simple matter of picking off the first ++ * task in the sorted list, an O(1) operation. The lookup is amortised O(1) ++ * being bound to the number of processors. ++ * ++ * Runqueues are selectively locked based on their unlocked data and then ++ * unlocked if not needed. At most 3 locks will be held at any time and are ++ * released as soon as they're no longer needed. All balancing between CPUs ++ * is thus done here in an extremely simple first come best fit manner. ++ * ++ * This iterates over runqueues in cache locality order. In interactive mode ++ * it iterates over all CPUs and finds the task with the best key/deadline. ++ * In non-interactive mode it will only take a task if it's from the current ++ * runqueue or a runqueue with more tasks than the current one with a better ++ * key/deadline. ++ */ ++#ifdef CONFIG_SMP ++static inline struct task_struct ++*earliest_deadline_task(struct rq *rq, int cpu, struct task_struct *idle) ++{ ++ struct rq *locked = NULL, *chosen = NULL; ++ struct task_struct *edt = idle; ++ int i, best_entries = 0; ++ u64 best_key = ~0ULL; ++ ++ for (i = 0; i < total_runqueues; i++) { ++ struct rq *other_rq = rq_order(rq, i); ++ skiplist_node *next; ++ int entries; ++ ++ entries = other_rq->sl->entries; ++ /* ++ * Check for queued entres lockless first. The local runqueue ++ * is locked so entries will always be accurate. ++ */ ++ if (!sched_interactive) { ++ /* ++ * Don't reschedule balance across nodes unless the CPU ++ * is idle. ++ */ ++ if (edt != idle && rq->cpu_locality[other_rq->cpu] > 3) ++ break; ++ if (entries <= best_entries) ++ continue; ++ } else if (!entries) ++ continue; ++ ++ /* if (i) implies other_rq != rq */ ++ if (i) { ++ /* Check for best id queued lockless first */ ++ if (other_rq->best_key >= best_key) ++ continue; ++ ++ if (unlikely(!trylock_rq(rq, other_rq))) ++ continue; ++ ++ /* Need to reevaluate entries after locking */ ++ entries = other_rq->sl->entries; ++ if (unlikely(!entries)) { ++ unlock_rq(other_rq); ++ continue; ++ } ++ } ++ ++ next = other_rq->node; ++ /* ++ * In interactive mode we check beyond the best entry on other ++ * runqueues if we can't get the best for smt or affinity ++ * reasons. ++ */ ++ while ((next = next->next[0]) != other_rq->node) { ++ struct task_struct *p; ++ u64 key = next->key; ++ ++ /* Reevaluate key after locking */ ++ if (key >= best_key) ++ break; ++ ++ p = next->value; ++ if (!smt_schedule(p, rq)) { ++ if (i && !sched_interactive) ++ break; ++ continue; ++ } ++ ++ if (sched_other_cpu(p, cpu)) { ++ if (sched_interactive || !i) ++ continue; ++ break; ++ } ++ /* Make sure affinity is ok */ ++ if (i) { ++ /* From this point on p is the best so far */ ++ if (locked) ++ unlock_rq(locked); ++ chosen = locked = other_rq; ++ } ++ best_entries = entries; ++ best_key = key; ++ edt = p; ++ break; ++ } ++ /* rq->preempting is a hint only as the state may have changed ++ * since it was set with the resched call but if we have met ++ * the condition we can break out here. */ ++ if (edt == rq->preempting) ++ break; ++ if (i && other_rq != chosen) ++ unlock_rq(other_rq); ++ } ++ ++ if (likely(edt != idle)) ++ take_task(rq, cpu, edt); ++ ++ if (locked) ++ unlock_rq(locked); ++ ++ rq->preempting = NULL; ++ ++ return edt; ++} ++#else /* CONFIG_SMP */ ++static inline struct task_struct ++*earliest_deadline_task(struct rq *rq, int cpu, struct task_struct *idle) ++{ ++ struct task_struct *edt; ++ ++ if (unlikely(!rq->sl->entries)) ++ return idle; ++ edt = rq->node->next[0]->value; ++ take_task(rq, cpu, edt); ++ return edt; ++} ++#endif /* CONFIG_SMP */ ++ ++/* ++ * Print scheduling while atomic bug: ++ */ ++static noinline void __schedule_bug(struct task_struct *prev) ++{ ++ /* Save this before calling printk(), since that will clobber it */ ++ unsigned long preempt_disable_ip = get_preempt_disable_ip(current); ++ ++ if (oops_in_progress) ++ return; ++ ++ printk(KERN_ERR "BUG: scheduling while atomic: %s/%d/0x%08x\n", ++ prev->comm, prev->pid, preempt_count()); ++ ++ debug_show_held_locks(prev); ++ print_modules(); ++ if (irqs_disabled()) ++ print_irqtrace_events(prev); ++ if (IS_ENABLED(CONFIG_DEBUG_PREEMPT) ++ && in_atomic_preempt_off()) { ++ pr_err("Preemption disabled at:"); ++ print_ip_sym(preempt_disable_ip); ++ pr_cont("\n"); ++ } ++ dump_stack(); ++ add_taint(TAINT_WARN, LOCKDEP_STILL_OK); ++} ++ ++/* ++ * Various schedule()-time debugging checks and statistics: ++ */ ++static inline void schedule_debug(struct task_struct *prev) ++{ ++#ifdef CONFIG_SCHED_STACK_END_CHECK ++ if (task_stack_end_corrupted(prev)) ++ panic("corrupted stack end detected inside scheduler\n"); ++#endif ++ ++ if (unlikely(in_atomic_preempt_off())) { ++ __schedule_bug(prev); ++ preempt_count_set(PREEMPT_DISABLED); ++ } ++ rcu_sleep_check(); ++ ++ profile_hit(SCHED_PROFILING, __builtin_return_address(0)); ++ ++ schedstat_inc(this_rq()->sched_count); ++} ++ ++/* ++ * The currently running task's information is all stored in rq local data ++ * which is only modified by the local CPU. ++ */ ++static inline void set_rq_task(struct rq *rq, struct task_struct *p) ++{ ++ if (p == rq->idle || p->policy == SCHED_FIFO) ++ hrexpiry_clear(rq); ++ else ++ hrexpiry_start(rq, US_TO_NS(p->time_slice)); ++ if (rq->clock - rq->last_tick > HALF_JIFFY_NS) ++ rq->dither = 0; ++ else ++ rq->dither = rq_dither(rq); ++ ++ rq->rq_deadline = p->deadline; ++ rq->rq_prio = p->prio; ++#ifdef CONFIG_SMT_NICE ++ rq->rq_mm = p->mm; ++ rq->rq_smt_bias = p->smt_bias; ++#endif ++} ++ ++#ifdef CONFIG_SMT_NICE ++static void check_no_siblings(struct rq __maybe_unused *this_rq) {} ++static void wake_no_siblings(struct rq __maybe_unused *this_rq) {} ++static void (*check_siblings)(struct rq *this_rq) = &check_no_siblings; ++static void (*wake_siblings)(struct rq *this_rq) = &wake_no_siblings; ++ ++/* Iterate over smt siblings when we've scheduled a process on cpu and decide ++ * whether they should continue running or be descheduled. */ ++static void check_smt_siblings(struct rq *this_rq) ++{ ++ int other_cpu; ++ ++ for_each_cpu(other_cpu, &this_rq->thread_mask) { ++ struct task_struct *p; ++ struct rq *rq; ++ ++ rq = cpu_rq(other_cpu); ++ if (rq_idle(rq)) ++ continue; ++ p = rq->curr; ++ if (!smt_schedule(p, this_rq)) ++ resched_curr(rq); ++ } ++} ++ ++static void wake_smt_siblings(struct rq *this_rq) ++{ ++ int other_cpu; ++ ++ for_each_cpu(other_cpu, &this_rq->thread_mask) { ++ struct rq *rq; ++ ++ rq = cpu_rq(other_cpu); ++ if (rq_idle(rq)) ++ resched_idle(rq); ++ } ++} ++#else ++static void check_siblings(struct rq __maybe_unused *this_rq) {} ++static void wake_siblings(struct rq __maybe_unused *this_rq) {} ++#endif ++ ++/* ++ * schedule() is the main scheduler function. ++ * ++ * The main means of driving the scheduler and thus entering this function are: ++ * ++ * 1. Explicit blocking: mutex, semaphore, waitqueue, etc. ++ * ++ * 2. TIF_NEED_RESCHED flag is checked on interrupt and userspace return ++ * paths. For example, see arch/x86/entry_64.S. ++ * ++ * To drive preemption between tasks, the scheduler sets the flag in timer ++ * interrupt handler scheduler_tick(). ++ * ++ * 3. Wakeups don't really cause entry into schedule(). They add a ++ * task to the run-queue and that's it. ++ * ++ * Now, if the new task added to the run-queue preempts the current ++ * task, then the wakeup sets TIF_NEED_RESCHED and schedule() gets ++ * called on the nearest possible occasion: ++ * ++ * - If the kernel is preemptible (CONFIG_PREEMPT=y): ++ * ++ * - in syscall or exception context, at the next outmost ++ * preempt_enable(). (this might be as soon as the wake_up()'s ++ * spin_unlock()!) ++ * ++ * - in IRQ context, return from interrupt-handler to ++ * preemptible context ++ * ++ * - If the kernel is not preemptible (CONFIG_PREEMPT is not set) ++ * then at the next: ++ * ++ * - cond_resched() call ++ * - explicit schedule() call ++ * - return from syscall or exception to user-space ++ * - return from interrupt-handler to user-space ++ * ++ * WARNING: must be called with preemption disabled! ++ */ ++static void __sched notrace __schedule(bool preempt) ++{ ++ struct task_struct *prev, *next, *idle; ++ unsigned long *switch_count; ++ bool deactivate = false; ++ struct rq *rq; ++ u64 niffies; ++ int cpu; ++ ++ cpu = smp_processor_id(); ++ rq = cpu_rq(cpu); ++ prev = rq->curr; ++ idle = rq->idle; ++ ++ schedule_debug(prev); ++ ++ local_irq_disable(); ++ rcu_note_context_switch(preempt); ++ ++ /* ++ * Make sure that signal_pending_state()->signal_pending() below ++ * can't be reordered with __set_current_state(TASK_INTERRUPTIBLE) ++ * done by the caller to avoid the race with signal_wake_up(). ++ * ++ * The membarrier system call requires a full memory barrier ++ * after coming from user-space, before storing to rq->curr. ++ */ ++ rq_lock(rq); ++ smp_mb__after_spinlock(); ++#ifdef CONFIG_SMP ++ if (rq->preempt) { ++ /* ++ * Make sure resched_curr hasn't triggered a preemption ++ * locklessly on a task that has since scheduled away. Spurious ++ * wakeup of idle is okay though. ++ */ ++ if (unlikely(preempt && prev != idle && !test_tsk_need_resched(prev))) { ++ rq->preempt = NULL; ++ clear_preempt_need_resched(); ++ rq_unlock_irq(rq, NULL); ++ return; ++ } ++ rq->preempt = NULL; ++ } ++#endif ++ ++ switch_count = &prev->nivcsw; ++ if (!preempt && prev->state) { ++ if (unlikely(signal_pending_state(prev->state, prev))) { ++ prev->state = TASK_RUNNING; ++ } else { ++ deactivate = true; ++ prev->on_rq = 0; ++ ++ if (prev->in_iowait) { ++ atomic_inc(&rq->nr_iowait); ++ delayacct_blkio_start(); ++ } ++ ++ /* ++ * If a worker is going to sleep, notify and ++ * ask workqueue whether it wants to wake up a ++ * task to maintain concurrency. If so, wake ++ * up the task. ++ */ ++ if (prev->flags & PF_WQ_WORKER) { ++ struct task_struct *to_wakeup; ++ ++ to_wakeup = wq_worker_sleeping(prev); ++ if (to_wakeup) ++ try_to_wake_up_local(to_wakeup); ++ } ++ } ++ switch_count = &prev->nvcsw; ++ } ++ ++ /* ++ * Store the niffy value here for use by the next task's last_ran ++ * below to avoid losing niffies due to update_clocks being called ++ * again after this point. ++ */ ++ update_clocks(rq); ++ niffies = rq->niffies; ++ update_cpu_clock_switch(rq, prev); ++ ++ clear_tsk_need_resched(prev); ++ clear_preempt_need_resched(); ++ ++ if (idle != prev) { ++ check_deadline(prev, rq); ++ return_task(prev, rq, cpu, deactivate); ++ } ++ ++ next = earliest_deadline_task(rq, cpu, idle); ++ if (likely(next->prio != PRIO_LIMIT)) ++ clear_cpuidle_map(cpu); ++ else { ++ set_cpuidle_map(cpu); ++ update_load_avg(rq, 0); ++ } ++ ++ set_rq_task(rq, next); ++ next->last_ran = niffies; ++ ++ if (likely(prev != next)) { ++ /* ++ * Don't reschedule an idle task or deactivated tasks ++ */ ++ if (prev == idle) { ++ rq->nr_running++; ++ if (rt_task(next)) ++ rq->rt_nr_running++; ++ } else if (!deactivate) ++ resched_suitable_idle(prev); ++ if (unlikely(next == idle)) { ++ rq->nr_running--; ++ if (rt_task(prev)) ++ rq->rt_nr_running--; ++ wake_siblings(rq); ++ } else ++ check_siblings(rq); ++ rq->nr_switches++; ++ rq->curr = next; ++ /* ++ * The membarrier system call requires each architecture ++ * to have a full memory barrier after updating ++ * rq->curr, before returning to user-space. ++ * ++ * Here are the schemes providing that barrier on the ++ * various architectures: ++ * - mm ? switch_mm() : mmdrop() for x86, s390, sparc, PowerPC. ++ * switch_mm() rely on membarrier_arch_switch_mm() on PowerPC. ++ * - finish_lock_switch() for weakly-ordered ++ * architectures where spin_unlock is a full barrier, ++ * - switch_to() for arm64 (weakly-ordered, spin_unlock ++ * is a RELEASE barrier), ++ */ ++ ++*switch_count; ++ ++ trace_sched_switch(preempt, prev, next); ++ context_switch(rq, prev, next); /* unlocks the rq */ ++ } else { ++ check_siblings(rq); ++ rq_unlock(rq); ++ do_pending_softirq(rq, next); ++ local_irq_enable(); ++ } ++} ++ ++void __noreturn do_task_dead(void) ++{ ++ /* Causes final put_task_struct in finish_task_switch(). */ ++ set_special_state(TASK_DEAD); ++ ++ /* Tell freezer to ignore us: */ ++ current->flags |= PF_NOFREEZE; ++ __schedule(false); ++ BUG(); ++ ++ /* Avoid "noreturn function does return" - but don't continue if BUG() is a NOP: */ ++ for (;;) ++ cpu_relax(); ++} ++ ++static inline void sched_submit_work(struct task_struct *tsk) ++{ ++ if (!tsk->state || tsk_is_pi_blocked(tsk) || ++ preempt_count() || ++ signal_pending_state(tsk->state, tsk)) ++ return; ++ ++ /* ++ * If we are going to sleep and we have plugged IO queued, ++ * make sure to submit it to avoid deadlocks. ++ */ ++ if (blk_needs_flush_plug(tsk)) ++ blk_schedule_flush_plug(tsk); ++} ++ ++asmlinkage __visible void __sched schedule(void) ++{ ++ struct task_struct *tsk = current; ++ ++ sched_submit_work(tsk); ++ do { ++ preempt_disable(); ++ __schedule(false); ++ sched_preempt_enable_no_resched(); ++ } while (need_resched()); ++} ++ ++EXPORT_SYMBOL(schedule); ++ ++/* ++ * synchronize_rcu_tasks() makes sure that no task is stuck in preempted ++ * state (have scheduled out non-voluntarily) by making sure that all ++ * tasks have either left the run queue or have gone into user space. ++ * As idle tasks do not do either, they must not ever be preempted ++ * (schedule out non-voluntarily). ++ * ++ * schedule_idle() is similar to schedule_preempt_disable() except that it ++ * never enables preemption because it does not call sched_submit_work(). ++ */ ++void __sched schedule_idle(void) ++{ ++ /* ++ * As this skips calling sched_submit_work(), which the idle task does ++ * regardless because that function is a nop when the task is in a ++ * TASK_RUNNING state, make sure this isn't used someplace that the ++ * current task can be in any other state. Note, idle is always in the ++ * TASK_RUNNING state. ++ */ ++ WARN_ON_ONCE(current->state); ++ do { ++ __schedule(false); ++ } while (need_resched()); ++} ++ ++#ifdef CONFIG_CONTEXT_TRACKING ++asmlinkage __visible void __sched schedule_user(void) ++{ ++ /* ++ * If we come here after a random call to set_need_resched(), ++ * or we have been woken up remotely but the IPI has not yet arrived, ++ * we haven't yet exited the RCU idle mode. Do it here manually until ++ * we find a better solution. ++ * ++ * NB: There are buggy callers of this function. Ideally we ++ * should warn if prev_state != IN_USER, but that will trigger ++ * too frequently to make sense yet. ++ */ ++ enum ctx_state prev_state = exception_enter(); ++ schedule(); ++ exception_exit(prev_state); ++} ++#endif ++ ++/** ++ * schedule_preempt_disabled - called with preemption disabled ++ * ++ * Returns with preemption disabled. Note: preempt_count must be 1 ++ */ ++void __sched schedule_preempt_disabled(void) ++{ ++ sched_preempt_enable_no_resched(); ++ schedule(); ++ preempt_disable(); ++} ++ ++static void __sched notrace preempt_schedule_common(void) ++{ ++ do { ++ /* ++ * Because the function tracer can trace preempt_count_sub() ++ * and it also uses preempt_enable/disable_notrace(), if ++ * NEED_RESCHED is set, the preempt_enable_notrace() called ++ * by the function tracer will call this function again and ++ * cause infinite recursion. ++ * ++ * Preemption must be disabled here before the function ++ * tracer can trace. Break up preempt_disable() into two ++ * calls. One to disable preemption without fear of being ++ * traced. The other to still record the preemption latency, ++ * which can also be traced by the function tracer. ++ */ ++ preempt_disable_notrace(); ++ preempt_latency_start(1); ++ __schedule(true); ++ preempt_latency_stop(1); ++ preempt_enable_no_resched_notrace(); ++ ++ /* ++ * Check again in case we missed a preemption opportunity ++ * between schedule and now. ++ */ ++ } while (need_resched()); ++} ++ ++#ifdef CONFIG_PREEMPT ++/* ++ * this is the entry point to schedule() from in-kernel preemption ++ * off of preempt_enable. Kernel preemptions off return from interrupt ++ * occur there and call schedule directly. ++ */ ++asmlinkage __visible void __sched notrace preempt_schedule(void) ++{ ++ /* ++ * If there is a non-zero preempt_count or interrupts are disabled, ++ * we do not want to preempt the current task. Just return.. ++ */ ++ if (likely(!preemptible())) ++ return; ++ ++ preempt_schedule_common(); ++} ++NOKPROBE_SYMBOL(preempt_schedule); ++EXPORT_SYMBOL(preempt_schedule); ++ ++/** ++ * preempt_schedule_notrace - preempt_schedule called by tracing ++ * ++ * The tracing infrastructure uses preempt_enable_notrace to prevent ++ * recursion and tracing preempt enabling caused by the tracing ++ * infrastructure itself. But as tracing can happen in areas coming ++ * from userspace or just about to enter userspace, a preempt enable ++ * can occur before user_exit() is called. This will cause the scheduler ++ * to be called when the system is still in usermode. ++ * ++ * To prevent this, the preempt_enable_notrace will use this function ++ * instead of preempt_schedule() to exit user context if needed before ++ * calling the scheduler. ++ */ ++asmlinkage __visible void __sched notrace preempt_schedule_notrace(void) ++{ ++ enum ctx_state prev_ctx; ++ ++ if (likely(!preemptible())) ++ return; ++ ++ do { ++ /* ++ * Because the function tracer can trace preempt_count_sub() ++ * and it also uses preempt_enable/disable_notrace(), if ++ * NEED_RESCHED is set, the preempt_enable_notrace() called ++ * by the function tracer will call this function again and ++ * cause infinite recursion. ++ * ++ * Preemption must be disabled here before the function ++ * tracer can trace. Break up preempt_disable() into two ++ * calls. One to disable preemption without fear of being ++ * traced. The other to still record the preemption latency, ++ * which can also be traced by the function tracer. ++ */ ++ preempt_disable_notrace(); ++ preempt_latency_start(1); ++ /* ++ * Needs preempt disabled in case user_exit() is traced ++ * and the tracer calls preempt_enable_notrace() causing ++ * an infinite recursion. ++ */ ++ prev_ctx = exception_enter(); ++ __schedule(true); ++ exception_exit(prev_ctx); ++ ++ preempt_latency_stop(1); ++ preempt_enable_no_resched_notrace(); ++ } while (need_resched()); ++} ++EXPORT_SYMBOL_GPL(preempt_schedule_notrace); ++ ++#endif /* CONFIG_PREEMPT */ ++ ++/* ++ * this is the entry point to schedule() from kernel preemption ++ * off of irq context. ++ * Note, that this is called and return with irqs disabled. This will ++ * protect us against recursive calling from irq. ++ */ ++asmlinkage __visible void __sched preempt_schedule_irq(void) ++{ ++ enum ctx_state prev_state; ++ ++ /* Catch callers which need to be fixed */ ++ BUG_ON(preempt_count() || !irqs_disabled()); ++ ++ prev_state = exception_enter(); ++ ++ do { ++ preempt_disable(); ++ local_irq_enable(); ++ __schedule(true); ++ local_irq_disable(); ++ sched_preempt_enable_no_resched(); ++ } while (need_resched()); ++ ++ exception_exit(prev_state); ++} ++ ++int default_wake_function(wait_queue_entry_t *curr, unsigned mode, int wake_flags, ++ void *key) ++{ ++ return try_to_wake_up(curr->private, mode, wake_flags); ++} ++EXPORT_SYMBOL(default_wake_function); ++ ++#ifdef CONFIG_RT_MUTEXES ++ ++static inline int __rt_effective_prio(struct task_struct *pi_task, int prio) ++{ ++ if (pi_task) ++ prio = min(prio, pi_task->prio); ++ ++ return prio; ++} ++ ++static inline int rt_effective_prio(struct task_struct *p, int prio) ++{ ++ struct task_struct *pi_task = rt_mutex_get_top_task(p); ++ ++ return __rt_effective_prio(pi_task, prio); ++} ++ ++/* ++ * rt_mutex_setprio - set the current priority of a task ++ * @p: task to boost ++ * @pi_task: donor task ++ * ++ * This function changes the 'effective' priority of a task. It does ++ * not touch ->normal_prio like __setscheduler(). ++ * ++ * Used by the rt_mutex code to implement priority inheritance ++ * logic. Call site only calls if the priority of the task changed. ++ */ ++void rt_mutex_setprio(struct task_struct *p, struct task_struct *pi_task) ++{ ++ int prio, oldprio; ++ struct rq *rq; ++ ++ /* XXX used to be waiter->prio, not waiter->task->prio */ ++ prio = __rt_effective_prio(pi_task, p->normal_prio); ++ ++ /* ++ * If nothing changed; bail early. ++ */ ++ if (p->pi_top_task == pi_task && prio == p->prio) ++ return; ++ ++ rq = __task_rq_lock(p, NULL); ++ update_rq_clock(rq); ++ /* ++ * Set under pi_lock && rq->lock, such that the value can be used under ++ * either lock. ++ * ++ * Note that there is loads of tricky to make this pointer cache work ++ * right. rt_mutex_slowunlock()+rt_mutex_postunlock() work together to ++ * ensure a task is de-boosted (pi_task is set to NULL) before the ++ * task is allowed to run again (and can exit). This ensures the pointer ++ * points to a blocked task -- which guaratees the task is present. ++ */ ++ p->pi_top_task = pi_task; ++ ++ /* ++ * For FIFO/RR we only need to set prio, if that matches we're done. ++ */ ++ if (prio == p->prio) ++ goto out_unlock; ++ ++ /* ++ * Idle task boosting is a nono in general. There is one ++ * exception, when PREEMPT_RT and NOHZ is active: ++ * ++ * The idle task calls get_next_timer_interrupt() and holds ++ * the timer wheel base->lock on the CPU and another CPU wants ++ * to access the timer (probably to cancel it). We can safely ++ * ignore the boosting request, as the idle CPU runs this code ++ * with interrupts disabled and will complete the lock ++ * protected section without being interrupted. So there is no ++ * real need to boost. ++ */ ++ if (unlikely(p == rq->idle)) { ++ WARN_ON(p != rq->curr); ++ WARN_ON(p->pi_blocked_on); ++ goto out_unlock; ++ } ++ ++ trace_sched_pi_setprio(p, pi_task); ++ oldprio = p->prio; ++ p->prio = prio; ++ if (task_running(rq, p)){ ++ if (prio > oldprio) ++ resched_task(p); ++ } else if (task_queued(p)) { ++ dequeue_task(rq, p, DEQUEUE_SAVE); ++ enqueue_task(rq, p, ENQUEUE_RESTORE); ++ if (prio < oldprio) ++ try_preempt(p, rq); ++ } ++out_unlock: ++ __task_rq_unlock(rq, NULL); ++} ++#else ++static inline int rt_effective_prio(struct task_struct *p, int prio) ++{ ++ return prio; ++} ++#endif ++ ++/* ++ * Adjust the deadline for when the priority is to change, before it's ++ * changed. ++ */ ++static inline void adjust_deadline(struct task_struct *p, int new_prio) ++{ ++ p->deadline += static_deadline_diff(new_prio) - task_deadline_diff(p); ++} ++ ++void set_user_nice(struct task_struct *p, long nice) ++{ ++ int new_static, old_static; ++ struct rq_flags rf; ++ struct rq *rq; ++ ++ if (task_nice(p) == nice || nice < MIN_NICE || nice > MAX_NICE) ++ return; ++ new_static = NICE_TO_PRIO(nice); ++ /* ++ * We have to be careful, if called from sys_setpriority(), ++ * the task might be in the middle of scheduling on another CPU. ++ */ ++ rq = task_rq_lock(p, &rf); ++ update_rq_clock(rq); ++ ++ /* ++ * The RT priorities are set via sched_setscheduler(), but we still ++ * allow the 'normal' nice value to be set - but as expected ++ * it wont have any effect on scheduling until the task is ++ * not SCHED_NORMAL/SCHED_BATCH: ++ */ ++ if (has_rt_policy(p)) { ++ p->static_prio = new_static; ++ goto out_unlock; ++ } ++ ++ adjust_deadline(p, new_static); ++ old_static = p->static_prio; ++ p->static_prio = new_static; ++ p->prio = effective_prio(p); ++ ++ if (task_queued(p)) { ++ dequeue_task(rq, p, DEQUEUE_SAVE); ++ enqueue_task(rq, p, ENQUEUE_RESTORE); ++ if (new_static < old_static) ++ try_preempt(p, rq); ++ } else if (task_running(rq, p)) { ++ set_rq_task(rq, p); ++ if (old_static < new_static) ++ resched_task(p); ++ } ++out_unlock: ++ task_rq_unlock(rq, p, &rf); ++} ++EXPORT_SYMBOL(set_user_nice); ++ ++/* ++ * can_nice - check if a task can reduce its nice value ++ * @p: task ++ * @nice: nice value ++ */ ++int can_nice(const struct task_struct *p, const int nice) ++{ ++ /* Convert nice value [19,-20] to rlimit style value [1,40] */ ++ int nice_rlim = nice_to_rlimit(nice); ++ ++ return (nice_rlim <= task_rlimit(p, RLIMIT_NICE) || ++ capable(CAP_SYS_NICE)); ++} ++ ++#ifdef __ARCH_WANT_SYS_NICE ++ ++/* ++ * sys_nice - change the priority of the current process. ++ * @increment: priority increment ++ * ++ * sys_setpriority is a more generic, but much slower function that ++ * does similar things. ++ */ ++SYSCALL_DEFINE1(nice, int, increment) ++{ ++ long nice, retval; ++ ++ /* ++ * Setpriority might change our priority at the same moment. ++ * We don't have to worry. Conceptually one call occurs first ++ * and we have a single winner. ++ */ ++ ++ increment = clamp(increment, -NICE_WIDTH, NICE_WIDTH); ++ nice = task_nice(current) + increment; ++ ++ nice = clamp_val(nice, MIN_NICE, MAX_NICE); ++ if (increment < 0 && !can_nice(current, nice)) ++ return -EPERM; ++ ++ retval = security_task_setnice(current, nice); ++ if (retval) ++ return retval; ++ ++ set_user_nice(current, nice); ++ return 0; ++} ++ ++#endif ++ ++/** ++ * task_prio - return the priority value of a given task. ++ * @p: the task in question. ++ * ++ * Return: The priority value as seen by users in /proc. ++ * RT tasks are offset by -100. Normal tasks are centered around 1, value goes ++ * from 0 (SCHED_ISO) up to 82 (nice +19 SCHED_IDLEPRIO). ++ */ ++int task_prio(const struct task_struct *p) ++{ ++ int delta, prio = p->prio - MAX_RT_PRIO; ++ ++ /* rt tasks and iso tasks */ ++ if (prio <= 0) ++ goto out; ++ ++ /* Convert to ms to avoid overflows */ ++ delta = NS_TO_MS(p->deadline - task_rq(p)->niffies); ++ if (unlikely(delta < 0)) ++ delta = 0; ++ delta = delta * 40 / ms_longest_deadline_diff(); ++ if (delta <= 80) ++ prio += delta; ++ if (idleprio_task(p)) ++ prio += 40; ++out: ++ return prio; ++} ++ ++/** ++ * idle_cpu - is a given CPU idle currently? ++ * @cpu: the processor in question. ++ * ++ * Return: 1 if the CPU is currently idle. 0 otherwise. ++ */ ++int idle_cpu(int cpu) ++{ ++ return cpu_curr(cpu) == cpu_rq(cpu)->idle; ++} ++ ++/** ++ * available_idle_cpu - is a given CPU idle for enqueuing work. ++ * @cpu: the CPU in question. ++ * ++ * Return: 1 if the CPU is currently idle. 0 otherwise. ++ */ ++int available_idle_cpu(int cpu) ++{ ++ if (!idle_cpu(cpu)) ++ return 0; ++ ++ if (vcpu_is_preempted(cpu)) ++ return 0; ++ ++ return 1; ++} ++ ++/** ++ * idle_task - return the idle task for a given CPU. ++ * @cpu: the processor in question. ++ * ++ * Return: The idle task for the CPU @cpu. ++ */ ++struct task_struct *idle_task(int cpu) ++{ ++ return cpu_rq(cpu)->idle; ++} ++ ++/** ++ * find_process_by_pid - find a process with a matching PID value. ++ * @pid: the pid in question. ++ * ++ * The task of @pid, if found. %NULL otherwise. ++ */ ++static inline struct task_struct *find_process_by_pid(pid_t pid) ++{ ++ return pid ? find_task_by_vpid(pid) : current; ++} ++ ++/* Actually do priority change: must hold rq lock. */ ++static void __setscheduler(struct task_struct *p, struct rq *rq, int policy, ++ int prio, bool keep_boost) ++{ ++ int oldrtprio, oldprio; ++ ++ p->policy = policy; ++ oldrtprio = p->rt_priority; ++ p->rt_priority = prio; ++ p->normal_prio = normal_prio(p); ++ oldprio = p->prio; ++ /* ++ * Keep a potential priority boosting if called from ++ * sched_setscheduler(). ++ */ ++ p->prio = normal_prio(p); ++ if (keep_boost) ++ p->prio = rt_effective_prio(p, p->prio); ++ ++ if (task_running(rq, p)) { ++ set_rq_task(rq, p); ++ resched_task(p); ++ } else if (task_queued(p)) { ++ dequeue_task(rq, p, DEQUEUE_SAVE); ++ enqueue_task(rq, p, ENQUEUE_RESTORE); ++ if (p->prio < oldprio || p->rt_priority > oldrtprio) ++ try_preempt(p, rq); ++ } ++} ++ ++/* ++ * Check the target process has a UID that matches the current process's ++ */ ++static bool check_same_owner(struct task_struct *p) ++{ ++ const struct cred *cred = current_cred(), *pcred; ++ bool match; ++ ++ rcu_read_lock(); ++ pcred = __task_cred(p); ++ match = (uid_eq(cred->euid, pcred->euid) || ++ uid_eq(cred->euid, pcred->uid)); ++ rcu_read_unlock(); ++ return match; ++} ++ ++static int __sched_setscheduler(struct task_struct *p, ++ const struct sched_attr *attr, ++ bool user, bool pi) ++{ ++ int retval, policy = attr->sched_policy, oldpolicy = -1, priority = attr->sched_priority; ++ unsigned long rlim_rtprio = 0; ++ struct rq_flags rf; ++ int reset_on_fork; ++ struct rq *rq; ++ ++ /* The pi code expects interrupts enabled */ ++ BUG_ON(pi && in_interrupt()); ++ ++ if (is_rt_policy(policy) && !capable(CAP_SYS_NICE)) { ++ unsigned long lflags; ++ ++ if (!lock_task_sighand(p, &lflags)) ++ return -ESRCH; ++ rlim_rtprio = task_rlimit(p, RLIMIT_RTPRIO); ++ unlock_task_sighand(p, &lflags); ++ if (rlim_rtprio) ++ goto recheck; ++ /* ++ * If the caller requested an RT policy without having the ++ * necessary rights, we downgrade the policy to SCHED_ISO. ++ * We also set the parameter to zero to pass the checks. ++ */ ++ policy = SCHED_ISO; ++ priority = 0; ++ } ++recheck: ++ /* Double check policy once rq lock held */ ++ if (policy < 0) { ++ reset_on_fork = p->sched_reset_on_fork; ++ policy = oldpolicy = p->policy; ++ } else { ++ reset_on_fork = !!(policy & SCHED_RESET_ON_FORK); ++ policy &= ~SCHED_RESET_ON_FORK; ++ ++ if (!SCHED_RANGE(policy)) ++ return -EINVAL; ++ } ++ ++ if (attr->sched_flags & ~(SCHED_FLAG_ALL | SCHED_FLAG_SUGOV)) ++ return -EINVAL; ++ ++ /* ++ * Valid priorities for SCHED_FIFO and SCHED_RR are ++ * 1..MAX_USER_RT_PRIO-1, valid priority for SCHED_NORMAL and ++ * SCHED_BATCH is 0. ++ */ ++ if (priority < 0 || ++ (p->mm && priority > MAX_USER_RT_PRIO - 1) || ++ (!p->mm && priority > MAX_RT_PRIO - 1)) ++ return -EINVAL; ++ if (is_rt_policy(policy) != (priority != 0)) ++ return -EINVAL; ++ ++ /* ++ * Allow unprivileged RT tasks to decrease priority: ++ */ ++ if (user && !capable(CAP_SYS_NICE)) { ++ if (is_rt_policy(policy)) { ++ unsigned long rlim_rtprio = ++ task_rlimit(p, RLIMIT_RTPRIO); ++ ++ /* Can't set/change the rt policy */ ++ if (policy != p->policy && !rlim_rtprio) ++ return -EPERM; ++ ++ /* Can't increase priority */ ++ if (priority > p->rt_priority && ++ priority > rlim_rtprio) ++ return -EPERM; ++ } else { ++ switch (p->policy) { ++ /* ++ * Can only downgrade policies but not back to ++ * SCHED_NORMAL ++ */ ++ case SCHED_ISO: ++ if (policy == SCHED_ISO) ++ goto out; ++ if (policy != SCHED_NORMAL) ++ return -EPERM; ++ break; ++ case SCHED_BATCH: ++ if (policy == SCHED_BATCH) ++ goto out; ++ if (policy != SCHED_IDLEPRIO) ++ return -EPERM; ++ break; ++ case SCHED_IDLEPRIO: ++ if (policy == SCHED_IDLEPRIO) ++ goto out; ++ return -EPERM; ++ default: ++ break; ++ } ++ } ++ ++ /* Can't change other user's priorities */ ++ if (!check_same_owner(p)) ++ return -EPERM; ++ ++ /* Normal users shall not reset the sched_reset_on_fork flag: */ ++ if (p->sched_reset_on_fork && !reset_on_fork) ++ return -EPERM; ++ } ++ ++ if (user) { ++ retval = security_task_setscheduler(p); ++ if (retval) ++ return retval; ++ } ++ ++ /* ++ * Make sure no PI-waiters arrive (or leave) while we are ++ * changing the priority of the task: ++ * ++ * To be able to change p->policy safely, the runqueue lock must be ++ * held. ++ */ ++ rq = task_rq_lock(p, &rf); ++ update_rq_clock(rq); ++ ++ /* ++ * Changing the policy of the stop threads its a very bad idea: ++ */ ++ if (p == rq->stop) { ++ task_rq_unlock(rq, p, &rf); ++ return -EINVAL; ++ } ++ ++ /* ++ * If not changing anything there's no need to proceed further: ++ */ ++ if (unlikely(policy == p->policy && (!is_rt_policy(policy) || ++ priority == p->rt_priority))) { ++ task_rq_unlock(rq, p, &rf); ++ return 0; ++ } ++ ++ /* Re-check policy now with rq lock held */ ++ if (unlikely(oldpolicy != -1 && oldpolicy != p->policy)) { ++ policy = oldpolicy = -1; ++ task_rq_unlock(rq, p, &rf); ++ goto recheck; ++ } ++ p->sched_reset_on_fork = reset_on_fork; ++ ++ __setscheduler(p, rq, policy, priority, pi); ++ task_rq_unlock(rq, p, &rf); ++ ++ if (pi) ++ rt_mutex_adjust_pi(p); ++out: ++ return 0; ++} ++ ++static int _sched_setscheduler(struct task_struct *p, int policy, ++ const struct sched_param *param, bool check) ++{ ++ struct sched_attr attr = { ++ .sched_policy = policy, ++ .sched_priority = param->sched_priority, ++ .sched_nice = PRIO_TO_NICE(p->static_prio), ++ }; ++ ++ return __sched_setscheduler(p, &attr, check, true); ++} ++/** ++ * sched_setscheduler - change the scheduling policy and/or RT priority of a thread. ++ * @p: the task in question. ++ * @policy: new policy. ++ * @param: structure containing the new RT priority. ++ * ++ * Return: 0 on success. An error code otherwise. ++ * ++ * NOTE that the task may be already dead. ++ */ ++int sched_setscheduler(struct task_struct *p, int policy, ++ const struct sched_param *param) ++{ ++ return _sched_setscheduler(p, policy, param, true); ++} ++ ++EXPORT_SYMBOL_GPL(sched_setscheduler); ++ ++int sched_setattr(struct task_struct *p, const struct sched_attr *attr) ++{ ++ return __sched_setscheduler(p, attr, true, true); ++} ++EXPORT_SYMBOL_GPL(sched_setattr); ++ ++int sched_setattr_nocheck(struct task_struct *p, const struct sched_attr *attr) ++{ ++ return __sched_setscheduler(p, attr, false, true); ++} ++ ++/** ++ * sched_setscheduler_nocheck - change the scheduling policy and/or RT priority of a thread from kernelspace. ++ * @p: the task in question. ++ * @policy: new policy. ++ * @param: structure containing the new RT priority. ++ * ++ * Just like sched_setscheduler, only don't bother checking if the ++ * current context has permission. For example, this is needed in ++ * stop_machine(): we create temporary high priority worker threads, ++ * but our caller might not have that capability. ++ * ++ * Return: 0 on success. An error code otherwise. ++ */ ++int sched_setscheduler_nocheck(struct task_struct *p, int policy, ++ const struct sched_param *param) ++{ ++ return _sched_setscheduler(p, policy, param, false); ++} ++EXPORT_SYMBOL_GPL(sched_setscheduler_nocheck); ++ ++static int ++do_sched_setscheduler(pid_t pid, int policy, struct sched_param __user *param) ++{ ++ struct sched_param lparam; ++ struct task_struct *p; ++ int retval; ++ ++ if (!param || pid < 0) ++ return -EINVAL; ++ if (copy_from_user(&lparam, param, sizeof(struct sched_param))) ++ return -EFAULT; ++ ++ rcu_read_lock(); ++ retval = -ESRCH; ++ p = find_process_by_pid(pid); ++ if (p != NULL) ++ retval = sched_setscheduler(p, policy, &lparam); ++ rcu_read_unlock(); ++ ++ return retval; ++} ++ ++/* ++ * Mimics kernel/events/core.c perf_copy_attr(). ++ */ ++static int sched_copy_attr(struct sched_attr __user *uattr, ++ struct sched_attr *attr) ++{ ++ u32 size; ++ int ret; ++ ++ if (!access_ok(VERIFY_WRITE, uattr, SCHED_ATTR_SIZE_VER0)) ++ return -EFAULT; ++ ++ /* Zero the full structure, so that a short copy will be nice: */ ++ memset(attr, 0, sizeof(*attr)); ++ ++ ret = get_user(size, &uattr->size); ++ if (ret) ++ return ret; ++ ++ /* Bail out on silly large: */ ++ if (size > PAGE_SIZE) ++ goto err_size; ++ ++ /* ABI compatibility quirk: */ ++ if (!size) ++ size = SCHED_ATTR_SIZE_VER0; ++ ++ if (size < SCHED_ATTR_SIZE_VER0) ++ goto err_size; ++ ++ /* ++ * If we're handed a bigger struct than we know of, ++ * ensure all the unknown bits are 0 - i.e. new ++ * user-space does not rely on any kernel feature ++ * extensions we dont know about yet. ++ */ ++ if (size > sizeof(*attr)) { ++ unsigned char __user *addr; ++ unsigned char __user *end; ++ unsigned char val; ++ ++ addr = (void __user *)uattr + sizeof(*attr); ++ end = (void __user *)uattr + size; ++ ++ for (; addr < end; addr++) { ++ ret = get_user(val, addr); ++ if (ret) ++ return ret; ++ if (val) ++ goto err_size; ++ } ++ size = sizeof(*attr); ++ } ++ ++ ret = copy_from_user(attr, uattr, size); ++ if (ret) ++ return -EFAULT; ++ ++ /* ++ * XXX: Do we want to be lenient like existing syscalls; or do we want ++ * to be strict and return an error on out-of-bounds values? ++ */ ++ attr->sched_nice = clamp(attr->sched_nice, -20, 19); ++ ++ /* sched/core.c uses zero here but we already know ret is zero */ ++ return 0; ++ ++err_size: ++ put_user(sizeof(*attr), &uattr->size); ++ return -E2BIG; ++} ++ ++/* ++ * sched_setparam() passes in -1 for its policy, to let the functions ++ * it calls know not to change it. ++ */ ++#define SETPARAM_POLICY -1 ++ ++/** ++ * sys_sched_setscheduler - set/change the scheduler policy and RT priority ++ * @pid: the pid in question. ++ * @policy: new policy. ++ * @param: structure containing the new RT priority. ++ * ++ * Return: 0 on success. An error code otherwise. ++ */ ++SYSCALL_DEFINE3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param) ++{ ++ if (policy < 0) ++ return -EINVAL; ++ ++ return do_sched_setscheduler(pid, policy, param); ++} ++ ++/** ++ * sys_sched_setparam - set/change the RT priority of a thread ++ * @pid: the pid in question. ++ * @param: structure containing the new RT priority. ++ * ++ * Return: 0 on success. An error code otherwise. ++ */ ++SYSCALL_DEFINE2(sched_setparam, pid_t, pid, struct sched_param __user *, param) ++{ ++ return do_sched_setscheduler(pid, SETPARAM_POLICY, param); ++} ++ ++/** ++ * sys_sched_setattr - same as above, but with extended sched_attr ++ * @pid: the pid in question. ++ * @uattr: structure containing the extended parameters. ++ */ ++SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr, ++ unsigned int, flags) ++{ ++ struct sched_attr attr; ++ struct task_struct *p; ++ int retval; ++ ++ if (!uattr || pid < 0 || flags) ++ return -EINVAL; ++ ++ retval = sched_copy_attr(uattr, &attr); ++ if (retval) ++ return retval; ++ ++ if ((int)attr.sched_policy < 0) ++ return -EINVAL; ++ ++ rcu_read_lock(); ++ retval = -ESRCH; ++ p = find_process_by_pid(pid); ++ if (p != NULL) ++ retval = sched_setattr(p, &attr); ++ rcu_read_unlock(); ++ ++ return retval; ++} ++ ++/** ++ * sys_sched_getscheduler - get the policy (scheduling class) of a thread ++ * @pid: the pid in question. ++ * ++ * Return: On success, the policy of the thread. Otherwise, a negative error ++ * code. ++ */ ++SYSCALL_DEFINE1(sched_getscheduler, pid_t, pid) ++{ ++ struct task_struct *p; ++ int retval = -EINVAL; ++ ++ if (pid < 0) ++ goto out_nounlock; ++ ++ retval = -ESRCH; ++ rcu_read_lock(); ++ p = find_process_by_pid(pid); ++ if (p) { ++ retval = security_task_getscheduler(p); ++ if (!retval) ++ retval = p->policy; ++ } ++ rcu_read_unlock(); ++ ++out_nounlock: ++ return retval; ++} ++ ++/** ++ * sys_sched_getscheduler - get the RT priority of a thread ++ * @pid: the pid in question. ++ * @param: structure containing the RT priority. ++ * ++ * Return: On success, 0 and the RT priority is in @param. Otherwise, an error ++ * code. ++ */ ++SYSCALL_DEFINE2(sched_getparam, pid_t, pid, struct sched_param __user *, param) ++{ ++ struct sched_param lp = { .sched_priority = 0 }; ++ struct task_struct *p; ++ int retval = -EINVAL; ++ ++ if (!param || pid < 0) ++ goto out_nounlock; ++ ++ rcu_read_lock(); ++ p = find_process_by_pid(pid); ++ retval = -ESRCH; ++ if (!p) ++ goto out_unlock; ++ ++ retval = security_task_getscheduler(p); ++ if (retval) ++ goto out_unlock; ++ ++ if (has_rt_policy(p)) ++ lp.sched_priority = p->rt_priority; ++ rcu_read_unlock(); ++ ++ /* ++ * This one might sleep, we cannot do it with a spinlock held ... ++ */ ++ retval = copy_to_user(param, &lp, sizeof(*param)) ? -EFAULT : 0; ++ ++out_nounlock: ++ return retval; ++ ++out_unlock: ++ rcu_read_unlock(); ++ return retval; ++} ++ ++static int sched_read_attr(struct sched_attr __user *uattr, ++ struct sched_attr *attr, ++ unsigned int usize) ++{ ++ int ret; ++ ++ if (!access_ok(VERIFY_WRITE, uattr, usize)) ++ return -EFAULT; ++ ++ /* ++ * If we're handed a smaller struct than we know of, ++ * ensure all the unknown bits are 0 - i.e. old ++ * user-space does not get uncomplete information. ++ */ ++ if (usize < sizeof(*attr)) { ++ unsigned char *addr; ++ unsigned char *end; ++ ++ addr = (void *)attr + usize; ++ end = (void *)attr + sizeof(*attr); ++ ++ for (; addr < end; addr++) { ++ if (*addr) ++ return -EFBIG; ++ } ++ ++ attr->size = usize; ++ } ++ ++ ret = copy_to_user(uattr, attr, attr->size); ++ if (ret) ++ return -EFAULT; ++ ++ /* sched/core.c uses zero here but we already know ret is zero */ ++ return ret; ++} ++ ++/** ++ * sys_sched_getattr - similar to sched_getparam, but with sched_attr ++ * @pid: the pid in question. ++ * @uattr: structure containing the extended parameters. ++ * @size: sizeof(attr) for fwd/bwd comp. ++ * @flags: for future extension. ++ */ ++SYSCALL_DEFINE4(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr, ++ unsigned int, size, unsigned int, flags) ++{ ++ struct sched_attr attr = { ++ .size = sizeof(struct sched_attr), ++ }; ++ struct task_struct *p; ++ int retval; ++ ++ if (!uattr || pid < 0 || size > PAGE_SIZE || ++ size < SCHED_ATTR_SIZE_VER0 || flags) ++ return -EINVAL; ++ ++ rcu_read_lock(); ++ p = find_process_by_pid(pid); ++ retval = -ESRCH; ++ if (!p) ++ goto out_unlock; ++ ++ retval = security_task_getscheduler(p); ++ if (retval) ++ goto out_unlock; ++ ++ attr.sched_policy = p->policy; ++ if (rt_task(p)) ++ attr.sched_priority = p->rt_priority; ++ else ++ attr.sched_nice = task_nice(p); ++ ++ rcu_read_unlock(); ++ ++ retval = sched_read_attr(uattr, &attr, size); ++ return retval; ++ ++out_unlock: ++ rcu_read_unlock(); ++ return retval; ++} ++ ++long sched_setaffinity(pid_t pid, const struct cpumask *in_mask) ++{ ++ cpumask_var_t cpus_allowed, new_mask; ++ struct task_struct *p; ++ int retval; ++ ++ rcu_read_lock(); ++ ++ p = find_process_by_pid(pid); ++ if (!p) { ++ rcu_read_unlock(); ++ return -ESRCH; ++ } ++ ++ /* Prevent p going away */ ++ get_task_struct(p); ++ rcu_read_unlock(); ++ ++ if (p->flags & PF_NO_SETAFFINITY) { ++ retval = -EINVAL; ++ goto out_put_task; ++ } ++ if (!alloc_cpumask_var(&cpus_allowed, GFP_KERNEL)) { ++ retval = -ENOMEM; ++ goto out_put_task; ++ } ++ if (!alloc_cpumask_var(&new_mask, GFP_KERNEL)) { ++ retval = -ENOMEM; ++ goto out_free_cpus_allowed; ++ } ++ retval = -EPERM; ++ if (!check_same_owner(p)) { ++ rcu_read_lock(); ++ if (!ns_capable(__task_cred(p)->user_ns, CAP_SYS_NICE)) { ++ rcu_read_unlock(); ++ goto out_unlock; ++ } ++ rcu_read_unlock(); ++ } ++ ++ retval = security_task_setscheduler(p); ++ if (retval) ++ goto out_unlock; ++ ++ cpuset_cpus_allowed(p, cpus_allowed); ++ cpumask_and(new_mask, in_mask, cpus_allowed); ++again: ++ retval = __set_cpus_allowed_ptr(p, new_mask, true); ++ ++ if (!retval) { ++ cpuset_cpus_allowed(p, cpus_allowed); ++ if (!cpumask_subset(new_mask, cpus_allowed)) { ++ /* ++ * We must have raced with a concurrent cpuset ++ * update. Just reset the cpus_allowed to the ++ * cpuset's cpus_allowed ++ */ ++ cpumask_copy(new_mask, cpus_allowed); ++ goto again; ++ } ++ } ++out_unlock: ++ free_cpumask_var(new_mask); ++out_free_cpus_allowed: ++ free_cpumask_var(cpus_allowed); ++out_put_task: ++ put_task_struct(p); ++ return retval; ++} ++ ++static int get_user_cpu_mask(unsigned long __user *user_mask_ptr, unsigned len, ++ cpumask_t *new_mask) ++{ ++ if (len < cpumask_size()) ++ cpumask_clear(new_mask); ++ else if (len > cpumask_size()) ++ len = cpumask_size(); ++ ++ return copy_from_user(new_mask, user_mask_ptr, len) ? -EFAULT : 0; ++} ++ ++ ++/** ++ * sys_sched_setaffinity - set the CPU affinity of a process ++ * @pid: pid of the process ++ * @len: length in bytes of the bitmask pointed to by user_mask_ptr ++ * @user_mask_ptr: user-space pointer to the new CPU mask ++ * ++ * Return: 0 on success. An error code otherwise. ++ */ ++SYSCALL_DEFINE3(sched_setaffinity, pid_t, pid, unsigned int, len, ++ unsigned long __user *, user_mask_ptr) ++{ ++ cpumask_var_t new_mask; ++ int retval; ++ ++ if (!alloc_cpumask_var(&new_mask, GFP_KERNEL)) ++ return -ENOMEM; ++ ++ retval = get_user_cpu_mask(user_mask_ptr, len, new_mask); ++ if (retval == 0) ++ retval = sched_setaffinity(pid, new_mask); ++ free_cpumask_var(new_mask); ++ return retval; ++} ++ ++long sched_getaffinity(pid_t pid, cpumask_t *mask) ++{ ++ struct task_struct *p; ++ unsigned long flags; ++ int retval; ++ ++ get_online_cpus(); ++ rcu_read_lock(); ++ ++ retval = -ESRCH; ++ p = find_process_by_pid(pid); ++ if (!p) ++ goto out_unlock; ++ ++ retval = security_task_getscheduler(p); ++ if (retval) ++ goto out_unlock; ++ ++ raw_spin_lock_irqsave(&p->pi_lock, flags); ++ cpumask_and(mask, &p->cpus_allowed, cpu_active_mask); ++ raw_spin_unlock_irqrestore(&p->pi_lock, flags); ++ ++out_unlock: ++ rcu_read_unlock(); ++ put_online_cpus(); ++ ++ return retval; ++} ++ ++/** ++ * sys_sched_getaffinity - get the CPU affinity of a process ++ * @pid: pid of the process ++ * @len: length in bytes of the bitmask pointed to by user_mask_ptr ++ * @user_mask_ptr: user-space pointer to hold the current CPU mask ++ * ++ * Return: 0 on success. An error code otherwise. ++ */ ++SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len, ++ unsigned long __user *, user_mask_ptr) ++{ ++ int ret; ++ cpumask_var_t mask; ++ ++ if ((len * BITS_PER_BYTE) < nr_cpu_ids) ++ return -EINVAL; ++ if (len & (sizeof(unsigned long)-1)) ++ return -EINVAL; ++ ++ if (!alloc_cpumask_var(&mask, GFP_KERNEL)) ++ return -ENOMEM; ++ ++ ret = sched_getaffinity(pid, mask); ++ if (ret == 0) { ++ unsigned int retlen = min(len, cpumask_size()); ++ ++ if (copy_to_user(user_mask_ptr, mask, retlen)) ++ ret = -EFAULT; ++ else ++ ret = retlen; ++ } ++ free_cpumask_var(mask); ++ ++ return ret; ++} ++ ++/** ++ * sys_sched_yield - yield the current processor to other threads. ++ * ++ * This function yields the current CPU to other tasks. It does this by ++ * scheduling away the current task. If it still has the earliest deadline ++ * it will be scheduled again as the next task. ++ * ++ * Return: 0. ++ */ ++static void do_sched_yield(void) ++{ ++ struct rq *rq; ++ ++ if (!sched_yield_type) ++ return; ++ ++ local_irq_disable(); ++ rq = this_rq(); ++ rq_lock(rq); ++ ++ if (sched_yield_type > 1) ++ time_slice_expired(current, rq); ++ schedstat_inc(rq->yld_count); ++ ++ /* ++ * Since we are going to call schedule() anyway, there's ++ * no need to preempt or enable interrupts: ++ */ ++ preempt_disable(); ++ rq_unlock(rq); ++ sched_preempt_enable_no_resched(); ++ ++ schedule(); ++} ++ ++SYSCALL_DEFINE0(sched_yield) ++{ ++ do_sched_yield(); ++ return 0; ++} ++ ++#ifndef CONFIG_PREEMPT ++int __sched _cond_resched(void) ++{ ++ if (should_resched(0)) { ++ preempt_schedule_common(); ++ return 1; ++ } ++ rcu_all_qs(); ++ return 0; ++} ++EXPORT_SYMBOL(_cond_resched); ++#endif ++ ++/* ++ * __cond_resched_lock() - if a reschedule is pending, drop the given lock, ++ * call schedule, and on return reacquire the lock. ++ * ++ * This works OK both with and without CONFIG_PREEMPT. We do strange low-level ++ * operations here to prevent schedule() from being called twice (once via ++ * spin_unlock(), once by hand). ++ */ ++int __cond_resched_lock(spinlock_t *lock) ++{ ++ int resched = should_resched(PREEMPT_LOCK_OFFSET); ++ int ret = 0; ++ ++ lockdep_assert_held(lock); ++ ++ if (spin_needbreak(lock) || resched) { ++ spin_unlock(lock); ++ if (resched) ++ preempt_schedule_common(); ++ else ++ cpu_relax(); ++ ret = 1; ++ spin_lock(lock); ++ } ++ return ret; ++} ++EXPORT_SYMBOL(__cond_resched_lock); ++ ++/** ++ * yield - yield the current processor to other threads. ++ * ++ * Do not ever use this function, there's a 99% chance you're doing it wrong. ++ * ++ * The scheduler is at all times free to pick the calling task as the most ++ * eligible task to run, if removing the yield() call from your code breaks ++ * it, its already broken. ++ * ++ * Typical broken usage is: ++ * ++ * while (!event) ++ * yield(); ++ * ++ * where one assumes that yield() will let 'the other' process run that will ++ * make event true. If the current task is a SCHED_FIFO task that will never ++ * happen. Never use yield() as a progress guarantee!! ++ * ++ * If you want to use yield() to wait for something, use wait_event(). ++ * If you want to use yield() to be 'nice' for others, use cond_resched(). ++ * If you still want to use yield(), do not! ++ */ ++void __sched yield(void) ++{ ++ set_current_state(TASK_RUNNING); ++ do_sched_yield(); ++} ++EXPORT_SYMBOL(yield); ++ ++/** ++ * yield_to - yield the current processor to another thread in ++ * your thread group, or accelerate that thread toward the ++ * processor it's on. ++ * @p: target task ++ * @preempt: whether task preemption is allowed or not ++ * ++ * It's the caller's job to ensure that the target task struct ++ * can't go away on us before we can do any checks. ++ * ++ * Return: ++ * true (>0) if we indeed boosted the target task. ++ * false (0) if we failed to boost the target. ++ * -ESRCH if there's no task to yield to. ++ */ ++int __sched yield_to(struct task_struct *p, bool preempt) ++{ ++ struct task_struct *rq_p; ++ struct rq *rq, *p_rq; ++ unsigned long flags; ++ int yielded = 0; ++ ++ local_irq_save(flags); ++ rq = this_rq(); ++ ++again: ++ p_rq = task_rq(p); ++ /* ++ * If we're the only runnable task on the rq and target rq also ++ * has only one task, there's absolutely no point in yielding. ++ */ ++ if (task_running(p_rq, p) || p->state) { ++ yielded = -ESRCH; ++ goto out_irq; ++ } ++ ++ double_rq_lock(rq, p_rq); ++ if (unlikely(task_rq(p) != p_rq)) { ++ double_rq_unlock(rq, p_rq); ++ goto again; ++ } ++ ++ yielded = 1; ++ schedstat_inc(rq->yld_count); ++ rq_p = rq->curr; ++ if (p->deadline > rq_p->deadline) ++ p->deadline = rq_p->deadline; ++ p->time_slice += rq_p->time_slice; ++ if (p->time_slice > timeslice()) ++ p->time_slice = timeslice(); ++ time_slice_expired(rq_p, rq); ++ if (preempt && rq != p_rq) ++ resched_task(p_rq->curr); ++ double_rq_unlock(rq, p_rq); ++out_irq: ++ local_irq_restore(flags); ++ ++ if (yielded > 0) ++ schedule(); ++ return yielded; ++} ++EXPORT_SYMBOL_GPL(yield_to); ++ ++int io_schedule_prepare(void) ++{ ++ int old_iowait = current->in_iowait; ++ ++ current->in_iowait = 1; ++ blk_schedule_flush_plug(current); ++ ++ return old_iowait; ++} ++ ++void io_schedule_finish(int token) ++{ ++ current->in_iowait = token; ++} ++ ++/* ++ * This task is about to go to sleep on IO. Increment rq->nr_iowait so ++ * that process accounting knows that this is a task in IO wait state. ++ * ++ * But don't do that if it is a deliberate, throttling IO wait (this task ++ * has set its backing_dev_info: the queue against which it should throttle) ++ */ ++ ++long __sched io_schedule_timeout(long timeout) ++{ ++ int token; ++ long ret; ++ ++ token = io_schedule_prepare(); ++ ret = schedule_timeout(timeout); ++ io_schedule_finish(token); ++ ++ return ret; ++} ++EXPORT_SYMBOL(io_schedule_timeout); ++ ++void io_schedule(void) ++{ ++ int token; ++ ++ token = io_schedule_prepare(); ++ schedule(); ++ io_schedule_finish(token); ++} ++EXPORT_SYMBOL(io_schedule); ++ ++/** ++ * sys_sched_get_priority_max - return maximum RT priority. ++ * @policy: scheduling class. ++ * ++ * Return: On success, this syscall returns the maximum ++ * rt_priority that can be used by a given scheduling class. ++ * On failure, a negative error code is returned. ++ */ ++SYSCALL_DEFINE1(sched_get_priority_max, int, policy) ++{ ++ int ret = -EINVAL; ++ ++ switch (policy) { ++ case SCHED_FIFO: ++ case SCHED_RR: ++ ret = MAX_USER_RT_PRIO-1; ++ break; ++ case SCHED_NORMAL: ++ case SCHED_BATCH: ++ case SCHED_ISO: ++ case SCHED_IDLEPRIO: ++ ret = 0; ++ break; ++ } ++ return ret; ++} ++ ++/** ++ * sys_sched_get_priority_min - return minimum RT priority. ++ * @policy: scheduling class. ++ * ++ * Return: On success, this syscall returns the minimum ++ * rt_priority that can be used by a given scheduling class. ++ * On failure, a negative error code is returned. ++ */ ++SYSCALL_DEFINE1(sched_get_priority_min, int, policy) ++{ ++ int ret = -EINVAL; ++ ++ switch (policy) { ++ case SCHED_FIFO: ++ case SCHED_RR: ++ ret = 1; ++ break; ++ case SCHED_NORMAL: ++ case SCHED_BATCH: ++ case SCHED_ISO: ++ case SCHED_IDLEPRIO: ++ ret = 0; ++ break; ++ } ++ return ret; ++} ++ ++static int sched_rr_get_interval(pid_t pid, struct timespec64 *t) ++{ ++ struct task_struct *p; ++ unsigned int time_slice; ++ struct rq_flags rf; ++ struct rq *rq; ++ int retval; ++ ++ if (pid < 0) ++ return -EINVAL; ++ ++ retval = -ESRCH; ++ rcu_read_lock(); ++ p = find_process_by_pid(pid); ++ if (!p) ++ goto out_unlock; ++ ++ retval = security_task_getscheduler(p); ++ if (retval) ++ goto out_unlock; ++ ++ rq = task_rq_lock(p, &rf); ++ time_slice = p->policy == SCHED_FIFO ? 0 : MS_TO_NS(task_timeslice(p)); ++ task_rq_unlock(rq, p, &rf); ++ ++ rcu_read_unlock(); ++ *t = ns_to_timespec64(time_slice); ++ return 0; ++ ++out_unlock: ++ rcu_read_unlock(); ++ return retval; ++} ++ ++/** ++ * sys_sched_rr_get_interval - return the default timeslice of a process. ++ * @pid: pid of the process. ++ * @interval: userspace pointer to the timeslice value. ++ * ++ * this syscall writes the default timeslice value of a given process ++ * into the user-space timespec buffer. A value of '0' means infinity. ++ * ++ * Return: On success, 0 and the timeslice is in @interval. Otherwise, ++ * an error code. ++ */ ++SYSCALL_DEFINE2(sched_rr_get_interval, pid_t, pid, ++ struct __kernel_timespec __user *, interval) ++{ ++ struct timespec64 t; ++ int retval = sched_rr_get_interval(pid, &t); ++ ++ if (retval == 0) ++ retval = put_timespec64(&t, interval); ++ ++ return retval; ++} ++ ++#ifdef CONFIG_COMPAT_32BIT_TIME ++COMPAT_SYSCALL_DEFINE2(sched_rr_get_interval, ++ compat_pid_t, pid, ++ struct old_timespec32 __user *, interval) ++{ ++ struct timespec64 t; ++ int retval = sched_rr_get_interval(pid, &t); ++ ++ if (retval == 0) ++ retval = put_old_timespec32(&t, interval); ++ return retval; ++} ++#endif ++ ++void sched_show_task(struct task_struct *p) ++{ ++ unsigned long free = 0; ++ int ppid; ++ ++ if (!try_get_task_stack(p)) ++ return; ++ ++ printk(KERN_INFO "%-15.15s %c", p->comm, task_state_to_char(p)); ++ ++ if (p->state == TASK_RUNNING) ++ printk(KERN_CONT " running task "); ++#ifdef CONFIG_DEBUG_STACK_USAGE ++ free = stack_not_used(p); ++#endif ++ ppid = 0; ++ rcu_read_lock(); ++ if (pid_alive(p)) ++ ppid = task_pid_nr(rcu_dereference(p->real_parent)); ++ rcu_read_unlock(); ++ printk(KERN_CONT "%5lu %5d %6d 0x%08lx\n", free, ++ task_pid_nr(p), ppid, ++ (unsigned long)task_thread_info(p)->flags); ++ ++ print_worker_info(KERN_INFO, p); ++ show_stack(p, NULL); ++ put_task_stack(p); ++} ++EXPORT_SYMBOL_GPL(sched_show_task); ++ ++static inline bool ++state_filter_match(unsigned long state_filter, struct task_struct *p) ++{ ++ /* no filter, everything matches */ ++ if (!state_filter) ++ return true; ++ ++ /* filter, but doesn't match */ ++ if (!(p->state & state_filter)) ++ return false; ++ ++ /* ++ * When looking for TASK_UNINTERRUPTIBLE skip TASK_IDLE (allows ++ * TASK_KILLABLE). ++ */ ++ if (state_filter == TASK_UNINTERRUPTIBLE && p->state == TASK_IDLE) ++ return false; ++ ++ return true; ++} ++ ++void show_state_filter(unsigned long state_filter) ++{ ++ struct task_struct *g, *p; ++ ++#if BITS_PER_LONG == 32 ++ printk(KERN_INFO ++ " task PC stack pid father\n"); ++#else ++ printk(KERN_INFO ++ " task PC stack pid father\n"); ++#endif ++ rcu_read_lock(); ++ for_each_process_thread(g, p) { ++ /* ++ * reset the NMI-timeout, listing all files on a slow ++ * console might take a lot of time: ++ * Also, reset softlockup watchdogs on all CPUs, because ++ * another CPU might be blocked waiting for us to process ++ * an IPI. ++ */ ++ touch_nmi_watchdog(); ++ touch_all_softlockup_watchdogs(); ++ if (state_filter_match(state_filter, p)) ++ sched_show_task(p); ++ } ++ ++ rcu_read_unlock(); ++ /* ++ * Only show locks if all tasks are dumped: ++ */ ++ if (!state_filter) ++ debug_show_all_locks(); ++} ++ ++void dump_cpu_task(int cpu) ++{ ++ pr_info("Task dump for CPU %d:\n", cpu); ++ sched_show_task(cpu_curr(cpu)); ++} ++ ++#ifdef CONFIG_SMP ++void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask) ++{ ++ cpumask_copy(&p->cpus_allowed, new_mask); ++ p->nr_cpus_allowed = cpumask_weight(new_mask); ++} ++ ++void __do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask) ++{ ++ struct rq *rq = task_rq(p); ++ ++ lockdep_assert_held(&p->pi_lock); ++ ++ cpumask_copy(&p->cpus_allowed, new_mask); ++ ++ if (task_queued(p)) { ++ /* ++ * Because __kthread_bind() calls this on blocked tasks without ++ * holding rq->lock. ++ */ ++ lockdep_assert_held(rq->lock); ++ } ++} ++ ++/* ++ * Calling do_set_cpus_allowed from outside the scheduler code should not be ++ * called on a running or queued task. We should be holding pi_lock. ++ */ ++void do_set_cpus_allowed(struct task_struct *p, const struct cpumask *new_mask) ++{ ++ __do_set_cpus_allowed(p, new_mask); ++ if (needs_other_cpu(p, task_cpu(p))) { ++ struct rq *rq; ++ ++ rq = __task_rq_lock(p, NULL); ++ set_task_cpu(p, valid_task_cpu(p)); ++ resched_task(p); ++ __task_rq_unlock(rq, NULL); ++ } ++} ++#endif ++ ++/** ++ * init_idle - set up an idle thread for a given CPU ++ * @idle: task in question ++ * @cpu: cpu the idle task belongs to ++ * ++ * NOTE: this function does not set the idle thread's NEED_RESCHED ++ * flag, to make booting more robust. ++ */ ++void init_idle(struct task_struct *idle, int cpu) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ unsigned long flags; ++ ++ raw_spin_lock_irqsave(&idle->pi_lock, flags); ++ raw_spin_lock(rq->lock); ++ idle->last_ran = rq->niffies; ++ time_slice_expired(idle, rq); ++ idle->state = TASK_RUNNING; ++ /* Setting prio to illegal value shouldn't matter when never queued */ ++ idle->prio = PRIO_LIMIT; ++ ++ kasan_unpoison_task_stack(idle); ++ ++#ifdef CONFIG_SMP ++ /* ++ * It's possible that init_idle() gets called multiple times on a task, ++ * in that case do_set_cpus_allowed() will not do the right thing. ++ * ++ * And since this is boot we can forgo the serialisation. ++ */ ++ set_cpus_allowed_common(idle, cpumask_of(cpu)); ++#ifdef CONFIG_SMT_NICE ++ idle->smt_bias = 0; ++#endif ++#endif ++ set_rq_task(rq, idle); ++ ++ /* Silence PROVE_RCU */ ++ rcu_read_lock(); ++ set_task_cpu(idle, cpu); ++ rcu_read_unlock(); ++ ++ rq->curr = rq->idle = idle; ++ idle->on_rq = TASK_ON_RQ_QUEUED; ++ raw_spin_unlock(rq->lock); ++ raw_spin_unlock_irqrestore(&idle->pi_lock, flags); ++ ++ /* Set the preempt count _outside_ the spinlocks! */ ++ init_idle_preempt_count(idle, cpu); ++ ++ ftrace_graph_init_idle_task(idle, cpu); ++ vtime_init_idle(idle, cpu); ++#ifdef CONFIG_SMP ++ sprintf(idle->comm, "%s/%d", INIT_TASK_COMM, cpu); ++#endif ++} ++ ++int cpuset_cpumask_can_shrink(const struct cpumask __maybe_unused *cur, ++ const struct cpumask __maybe_unused *trial) ++{ ++ return 1; ++} ++ ++int task_can_attach(struct task_struct *p, ++ const struct cpumask *cs_cpus_allowed) ++{ ++ int ret = 0; ++ ++ /* ++ * Kthreads which disallow setaffinity shouldn't be moved ++ * to a new cpuset; we don't want to change their CPU ++ * affinity and isolating such threads by their set of ++ * allowed nodes is unnecessary. Thus, cpusets are not ++ * applicable for such threads. This prevents checking for ++ * success of set_cpus_allowed_ptr() on all attached tasks ++ * before cpus_allowed may be changed. ++ */ ++ if (p->flags & PF_NO_SETAFFINITY) ++ ret = -EINVAL; ++ ++ return ret; ++} ++ ++void resched_cpu(int cpu) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ struct rq_flags rf; ++ ++ rq_lock_irqsave(rq, &rf); ++ if (cpu_online(cpu) || cpu == smp_processor_id()) ++ resched_curr(rq); ++ rq_unlock_irqrestore(rq, &rf); ++} ++ ++#ifdef CONFIG_SMP ++#ifdef CONFIG_NO_HZ_COMMON ++void nohz_balance_enter_idle(int cpu) ++{ ++} ++ ++void select_nohz_load_balancer(int stop_tick) ++{ ++} ++ ++void set_cpu_sd_state_idle(void) {} ++ ++/* ++ * In the semi idle case, use the nearest busy CPU for migrating timers ++ * from an idle CPU. This is good for power-savings. ++ * ++ * We don't do similar optimization for completely idle system, as ++ * selecting an idle CPU will add more delays to the timers than intended ++ * (as that CPU's timer base may not be uptodate wrt jiffies etc). ++ */ ++int get_nohz_timer_target(void) ++{ ++ int i, cpu = smp_processor_id(); ++ struct sched_domain *sd; ++ ++ if (!idle_cpu(cpu) && housekeeping_cpu(cpu, HK_FLAG_TIMER)) ++ return cpu; ++ ++ rcu_read_lock(); ++ for_each_domain(cpu, sd) { ++ for_each_cpu(i, sched_domain_span(sd)) { ++ if (cpu == i) ++ continue; ++ ++ if (!idle_cpu(i) && housekeeping_cpu(i, HK_FLAG_TIMER)) { ++ cpu = i; ++ cpu = i; ++ goto unlock; ++ } ++ } ++ } ++ ++ if (!housekeeping_cpu(cpu, HK_FLAG_TIMER)) ++ cpu = housekeeping_any_cpu(HK_FLAG_TIMER); ++unlock: ++ rcu_read_unlock(); ++ return cpu; ++} ++ ++/* ++ * When add_timer_on() enqueues a timer into the timer wheel of an ++ * idle CPU then this timer might expire before the next timer event ++ * which is scheduled to wake up that CPU. In case of a completely ++ * idle system the next event might even be infinite time into the ++ * future. wake_up_idle_cpu() ensures that the CPU is woken up and ++ * leaves the inner idle loop so the newly added timer is taken into ++ * account when the CPU goes back to idle and evaluates the timer ++ * wheel for the next timer event. ++ */ ++void wake_up_idle_cpu(int cpu) ++{ ++ if (cpu == smp_processor_id()) ++ return; ++ ++ if (set_nr_and_not_polling(cpu_rq(cpu)->idle)) ++ smp_sched_reschedule(cpu); ++ else ++ trace_sched_wake_idle_without_ipi(cpu); ++} ++ ++static bool wake_up_full_nohz_cpu(int cpu) ++{ ++ /* ++ * We just need the target to call irq_exit() and re-evaluate ++ * the next tick. The nohz full kick at least implies that. ++ * If needed we can still optimize that later with an ++ * empty IRQ. ++ */ ++ if (cpu_is_offline(cpu)) ++ return true; /* Don't try to wake offline CPUs. */ ++ if (tick_nohz_full_cpu(cpu)) { ++ if (cpu != smp_processor_id() || ++ tick_nohz_tick_stopped()) ++ tick_nohz_full_kick_cpu(cpu); ++ return true; ++ } ++ ++ return false; ++} ++ ++/* ++ * Wake up the specified CPU. If the CPU is going offline, it is the ++ * caller's responsibility to deal with the lost wakeup, for example, ++ * by hooking into the CPU_DEAD notifier like timers and hrtimers do. ++ */ ++void wake_up_nohz_cpu(int cpu) ++{ ++ if (!wake_up_full_nohz_cpu(cpu)) ++ wake_up_idle_cpu(cpu); ++} ++#endif /* CONFIG_NO_HZ_COMMON */ ++ ++/* ++ * Change a given task's CPU affinity. Migrate the thread to a ++ * proper CPU and schedule it away if the CPU it's executing on ++ * is removed from the allowed bitmask. ++ * ++ * NOTE: the caller must have a valid reference to the task, the ++ * task must not exit() & deallocate itself prematurely. The ++ * call is not atomic; no spinlocks may be held. ++ */ ++static int __set_cpus_allowed_ptr(struct task_struct *p, ++ const struct cpumask *new_mask, bool check) ++{ ++ const struct cpumask *cpu_valid_mask = cpu_active_mask; ++ bool queued = false, running_wrong = false, kthread; ++ struct cpumask old_mask; ++ struct rq_flags rf; ++ int cpu, ret = 0; ++ struct rq *rq; ++ ++ rq = task_rq_lock(p, &rf); ++ update_rq_clock(rq); ++ ++ kthread = !!(p->flags & PF_KTHREAD); ++ if (kthread) { ++ /* ++ * Kernel threads are allowed on online && !active CPUs ++ */ ++ cpu_valid_mask = cpu_online_mask; ++ } ++ ++ /* ++ * Must re-check here, to close a race against __kthread_bind(), ++ * sched_setaffinity() is not guaranteed to observe the flag. ++ */ ++ if (check && (p->flags & PF_NO_SETAFFINITY)) { ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ cpumask_copy(&old_mask, &p->cpus_allowed); ++ if (cpumask_equal(&old_mask, new_mask)) ++ goto out; ++ ++ if (!cpumask_intersects(new_mask, cpu_valid_mask)) { ++ ret = -EINVAL; ++ goto out; ++ } ++ ++ queued = task_queued(p); ++ __do_set_cpus_allowed(p, new_mask); ++ ++ if (kthread) { ++ /* ++ * For kernel threads that do indeed end up on online && ++ * !active we want to ensure they are strict per-CPU threads. ++ */ ++ WARN_ON(cpumask_intersects(new_mask, cpu_online_mask) && ++ !cpumask_intersects(new_mask, cpu_active_mask) && ++ p->nr_cpus_allowed != 1); ++ } ++ ++ /* Can the task run on the task's current CPU? If so, we're done */ ++ if (cpumask_test_cpu(task_cpu(p), new_mask)) ++ goto out; ++ ++ if (task_running(rq, p)) { ++ /* Task is running on the wrong cpu now, reschedule it. */ ++ if (rq == this_rq()) { ++ cpu = cpumask_any_and(cpu_valid_mask, new_mask); ++ set_task_cpu(p, cpu); ++ set_tsk_need_resched(p); ++ running_wrong = true; ++ } else ++ resched_task(p); ++ } else { ++ cpu = cpumask_any_and(cpu_valid_mask, new_mask); ++ if (queued) { ++ /* ++ * Switch runqueue locks after dequeueing the task ++ * here while still holding the pi_lock to be holding ++ * the correct lock for enqueueing. ++ */ ++ dequeue_task(rq, p, 0); ++ rq_unlock(rq); ++ ++ rq = cpu_rq(cpu); ++ rq_lock(rq); ++ } ++ set_task_cpu(p, cpu); ++ if (queued) ++ enqueue_task(rq, p, 0); ++ } ++ if (queued) ++ try_preempt(p, rq); ++ if (running_wrong) ++ preempt_disable(); ++out: ++ task_rq_unlock(rq, p, &rf); ++ ++ if (running_wrong) { ++ __schedule(true); ++ preempt_enable(); ++ } ++ ++ return ret; ++} ++ ++int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask) ++{ ++ return __set_cpus_allowed_ptr(p, new_mask, false); ++} ++EXPORT_SYMBOL_GPL(set_cpus_allowed_ptr); ++ ++#ifdef CONFIG_HOTPLUG_CPU ++/* ++ * Run through task list and find tasks affined to the dead cpu, then remove ++ * that cpu from the list, enable cpu0 and set the zerobound flag. Must hold ++ * cpu 0 and src_cpu's runqueue locks. ++ */ ++static void bind_zero(int src_cpu) ++{ ++ struct task_struct *p, *t; ++ struct rq *rq0; ++ int bound = 0; ++ ++ if (src_cpu == 0) ++ return; ++ ++ rq0 = cpu_rq(0); ++ ++ do_each_thread(t, p) { ++ if (cpumask_test_cpu(src_cpu, &p->cpus_allowed)) { ++ bool local = (task_cpu(p) == src_cpu); ++ struct rq *rq = task_rq(p); ++ ++ /* task_running is the cpu stopper thread */ ++ if (local && task_running(rq, p)) ++ continue; ++ atomic_clear_cpu(src_cpu, &p->cpus_allowed); ++ atomic_set_cpu(0, &p->cpus_allowed); ++ p->zerobound = true; ++ bound++; ++ if (local) { ++ bool queued = task_queued(p); ++ ++ if (queued) ++ dequeue_task(rq, p, 0); ++ set_task_cpu(p, 0); ++ if (queued) ++ enqueue_task(rq0, p, 0); ++ } ++ } ++ } while_each_thread(t, p); ++ ++ if (bound) { ++ printk(KERN_INFO "Removed affinity for %d processes to cpu %d\n", ++ bound, src_cpu); ++ } ++} ++ ++/* Find processes with the zerobound flag and reenable their affinity for the ++ * CPU coming alive. */ ++static void unbind_zero(int src_cpu) ++{ ++ int unbound = 0, zerobound = 0; ++ struct task_struct *p, *t; ++ ++ if (src_cpu == 0) ++ return; ++ ++ do_each_thread(t, p) { ++ if (!p->mm) ++ p->zerobound = false; ++ if (p->zerobound) { ++ unbound++; ++ cpumask_set_cpu(src_cpu, &p->cpus_allowed); ++ /* Once every CPU affinity has been re-enabled, remove ++ * the zerobound flag */ ++ if (cpumask_subset(cpu_possible_mask, &p->cpus_allowed)) { ++ p->zerobound = false; ++ zerobound++; ++ } ++ } ++ } while_each_thread(t, p); ++ ++ if (unbound) { ++ printk(KERN_INFO "Added affinity for %d processes to cpu %d\n", ++ unbound, src_cpu); ++ } ++ if (zerobound) { ++ printk(KERN_INFO "Released forced binding to cpu0 for %d processes\n", ++ zerobound); ++ } ++} ++ ++/* ++ * Ensure that the idle task is using init_mm right before its cpu goes ++ * offline. ++ */ ++void idle_task_exit(void) ++{ ++ struct mm_struct *mm = current->active_mm; ++ ++ BUG_ON(cpu_online(smp_processor_id())); ++ ++ if (mm != &init_mm) { ++ switch_mm(mm, &init_mm, current); ++ current->active_mm = &init_mm; ++ finish_arch_post_lock_switch(); ++ } ++ mmdrop(mm); ++} ++#else /* CONFIG_HOTPLUG_CPU */ ++static void unbind_zero(int src_cpu) {} ++#endif /* CONFIG_HOTPLUG_CPU */ ++ ++void sched_set_stop_task(int cpu, struct task_struct *stop) ++{ ++ struct sched_param stop_param = { .sched_priority = STOP_PRIO }; ++ struct sched_param start_param = { .sched_priority = 0 }; ++ struct task_struct *old_stop = cpu_rq(cpu)->stop; ++ ++ if (stop) { ++ /* ++ * Make it appear like a SCHED_FIFO task, its something ++ * userspace knows about and won't get confused about. ++ * ++ * Also, it will make PI more or less work without too ++ * much confusion -- but then, stop work should not ++ * rely on PI working anyway. ++ */ ++ sched_setscheduler_nocheck(stop, SCHED_FIFO, &stop_param); ++ } ++ ++ cpu_rq(cpu)->stop = stop; ++ ++ if (old_stop) { ++ /* ++ * Reset it back to a normal scheduling policy so that ++ * it can die in pieces. ++ */ ++ sched_setscheduler_nocheck(old_stop, SCHED_NORMAL, &start_param); ++ } ++} ++ ++#if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL) ++ ++static struct ctl_table sd_ctl_dir[] = { ++ { ++ .procname = "sched_domain", ++ .mode = 0555, ++ }, ++ {} ++}; ++ ++static struct ctl_table sd_ctl_root[] = { ++ { ++ .procname = "kernel", ++ .mode = 0555, ++ .child = sd_ctl_dir, ++ }, ++ {} ++}; ++ ++static struct ctl_table *sd_alloc_ctl_entry(int n) ++{ ++ struct ctl_table *entry = ++ kcalloc(n, sizeof(struct ctl_table), GFP_KERNEL); ++ ++ return entry; ++} ++ ++static void sd_free_ctl_entry(struct ctl_table **tablep) ++{ ++ struct ctl_table *entry; ++ ++ /* ++ * In the intermediate directories, both the child directory and ++ * procname are dynamically allocated and could fail but the mode ++ * will always be set. In the lowest directory the names are ++ * static strings and all have proc handlers. ++ */ ++ for (entry = *tablep; entry->mode; entry++) { ++ if (entry->child) ++ sd_free_ctl_entry(&entry->child); ++ if (entry->proc_handler == NULL) ++ kfree(entry->procname); ++ } ++ ++ kfree(*tablep); ++ *tablep = NULL; ++} ++ ++#define CPU_LOAD_IDX_MAX 5 ++static int min_load_idx = 0; ++static int max_load_idx = CPU_LOAD_IDX_MAX-1; ++ ++static void ++set_table_entry(struct ctl_table *entry, ++ const char *procname, void *data, int maxlen, ++ umode_t mode, proc_handler *proc_handler, ++ bool load_idx) ++{ ++ entry->procname = procname; ++ entry->data = data; ++ entry->maxlen = maxlen; ++ entry->mode = mode; ++ entry->proc_handler = proc_handler; ++ ++ if (load_idx) { ++ entry->extra1 = &min_load_idx; ++ entry->extra2 = &max_load_idx; ++ } ++} ++ ++static struct ctl_table * ++sd_alloc_ctl_domain_table(struct sched_domain *sd) ++{ ++ struct ctl_table *table = sd_alloc_ctl_entry(14); ++ ++ if (table == NULL) ++ return NULL; ++ ++ set_table_entry(&table[0], "min_interval", &sd->min_interval, ++ sizeof(long), 0644, proc_doulongvec_minmax, false); ++ set_table_entry(&table[1], "max_interval", &sd->max_interval, ++ sizeof(long), 0644, proc_doulongvec_minmax, false); ++ set_table_entry(&table[2], "busy_idx", &sd->busy_idx, ++ sizeof(int), 0644, proc_dointvec_minmax, true); ++ set_table_entry(&table[3], "idle_idx", &sd->idle_idx, ++ sizeof(int), 0644, proc_dointvec_minmax, true); ++ set_table_entry(&table[4], "newidle_idx", &sd->newidle_idx, ++ sizeof(int), 0644, proc_dointvec_minmax, true); ++ set_table_entry(&table[5], "wake_idx", &sd->wake_idx, ++ sizeof(int), 0644, proc_dointvec_minmax, true); ++ set_table_entry(&table[6], "forkexec_idx", &sd->forkexec_idx, ++ sizeof(int), 0644, proc_dointvec_minmax, true); ++ set_table_entry(&table[7], "busy_factor", &sd->busy_factor, ++ sizeof(int), 0644, proc_dointvec_minmax, false); ++ set_table_entry(&table[8], "imbalance_pct", &sd->imbalance_pct, ++ sizeof(int), 0644, proc_dointvec_minmax, false); ++ set_table_entry(&table[9], "cache_nice_tries", ++ &sd->cache_nice_tries, ++ sizeof(int), 0644, proc_dointvec_minmax, false); ++ set_table_entry(&table[10], "flags", &sd->flags, ++ sizeof(int), 0644, proc_dointvec_minmax, false); ++ set_table_entry(&table[11], "max_newidle_lb_cost", ++ &sd->max_newidle_lb_cost, ++ sizeof(long), 0644, proc_doulongvec_minmax, false); ++ set_table_entry(&table[12], "name", sd->name, ++ CORENAME_MAX_SIZE, 0444, proc_dostring, false); ++ /* &table[13] is terminator */ ++ ++ return table; ++} ++ ++static struct ctl_table *sd_alloc_ctl_cpu_table(int cpu) ++{ ++ struct ctl_table *entry, *table; ++ struct sched_domain *sd; ++ int domain_num = 0, i; ++ char buf[32]; ++ ++ for_each_domain(cpu, sd) ++ domain_num++; ++ entry = table = sd_alloc_ctl_entry(domain_num + 1); ++ if (table == NULL) ++ return NULL; ++ ++ i = 0; ++ for_each_domain(cpu, sd) { ++ snprintf(buf, 32, "domain%d", i); ++ entry->procname = kstrdup(buf, GFP_KERNEL); ++ entry->mode = 0555; ++ entry->child = sd_alloc_ctl_domain_table(sd); ++ entry++; ++ i++; ++ } ++ return table; ++} ++ ++static cpumask_var_t sd_sysctl_cpus; ++static struct ctl_table_header *sd_sysctl_header; ++ ++void register_sched_domain_sysctl(void) ++{ ++ static struct ctl_table *cpu_entries; ++ static struct ctl_table **cpu_idx; ++ char buf[32]; ++ int i; ++ ++ if (!cpu_entries) { ++ cpu_entries = sd_alloc_ctl_entry(num_possible_cpus() + 1); ++ if (!cpu_entries) ++ return; ++ ++ WARN_ON(sd_ctl_dir[0].child); ++ sd_ctl_dir[0].child = cpu_entries; ++ } ++ ++ if (!cpu_idx) { ++ struct ctl_table *e = cpu_entries; ++ ++ cpu_idx = kcalloc(nr_cpu_ids, sizeof(struct ctl_table*), GFP_KERNEL); ++ if (!cpu_idx) ++ return; ++ ++ /* deal with sparse possible map */ ++ for_each_possible_cpu(i) { ++ cpu_idx[i] = e; ++ e++; ++ } ++ } ++ ++ if (!cpumask_available(sd_sysctl_cpus)) { ++ if (!alloc_cpumask_var(&sd_sysctl_cpus, GFP_KERNEL)) ++ return; ++ ++ /* init to possible to not have holes in @cpu_entries */ ++ cpumask_copy(sd_sysctl_cpus, cpu_possible_mask); ++ } ++ ++ for_each_cpu(i, sd_sysctl_cpus) { ++ struct ctl_table *e = cpu_idx[i]; ++ ++ if (e->child) ++ sd_free_ctl_entry(&e->child); ++ ++ if (!e->procname) { ++ snprintf(buf, 32, "cpu%d", i); ++ e->procname = kstrdup(buf, GFP_KERNEL); ++ } ++ e->mode = 0555; ++ e->child = sd_alloc_ctl_cpu_table(i); ++ ++ __cpumask_clear_cpu(i, sd_sysctl_cpus); ++ } ++ ++ WARN_ON(sd_sysctl_header); ++ sd_sysctl_header = register_sysctl_table(sd_ctl_root); ++} ++ ++void dirty_sched_domain_sysctl(int cpu) ++{ ++ if (cpumask_available(sd_sysctl_cpus)) ++ __cpumask_set_cpu(cpu, sd_sysctl_cpus); ++} ++ ++/* may be called multiple times per register */ ++void unregister_sched_domain_sysctl(void) ++{ ++ unregister_sysctl_table(sd_sysctl_header); ++ sd_sysctl_header = NULL; ++} ++#endif /* CONFIG_SYSCTL */ ++ ++void set_rq_online(struct rq *rq) ++{ ++ if (!rq->online) { ++ cpumask_set_cpu(cpu_of(rq), rq->rd->online); ++ rq->online = true; ++ } ++} ++ ++void set_rq_offline(struct rq *rq) ++{ ++ if (rq->online) { ++ int cpu = cpu_of(rq); ++ ++ cpumask_clear_cpu(cpu, rq->rd->online); ++ rq->online = false; ++ clear_cpuidle_map(cpu); ++ } ++} ++ ++/* ++ * used to mark begin/end of suspend/resume: ++ */ ++static int num_cpus_frozen; ++ ++/* ++ * Update cpusets according to cpu_active mask. If cpusets are ++ * disabled, cpuset_update_active_cpus() becomes a simple wrapper ++ * around partition_sched_domains(). ++ * ++ * If we come here as part of a suspend/resume, don't touch cpusets because we ++ * want to restore it back to its original state upon resume anyway. ++ */ ++static void cpuset_cpu_active(void) ++{ ++ if (cpuhp_tasks_frozen) { ++ /* ++ * num_cpus_frozen tracks how many CPUs are involved in suspend ++ * resume sequence. As long as this is not the last online ++ * operation in the resume sequence, just build a single sched ++ * domain, ignoring cpusets. ++ */ ++ partition_sched_domains(1, NULL, NULL); ++ if (--num_cpus_frozen) ++ return; ++ /* ++ * This is the last CPU online operation. So fall through and ++ * restore the original sched domains by considering the ++ * cpuset configurations. ++ */ ++ cpuset_force_rebuild(); ++ } ++ ++ cpuset_update_active_cpus(); ++} ++ ++static int cpuset_cpu_inactive(unsigned int cpu) ++{ ++ if (!cpuhp_tasks_frozen) { ++ cpuset_update_active_cpus(); ++ } else { ++ num_cpus_frozen++; ++ partition_sched_domains(1, NULL, NULL); ++ } ++ return 0; ++} ++ ++int sched_cpu_activate(unsigned int cpu) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ struct rq_flags rf; ++ ++ set_cpu_active(cpu, true); ++ ++ if (sched_smp_initialized) { ++ sched_domains_numa_masks_set(cpu); ++ cpuset_cpu_active(); ++ } ++ ++ /* ++ * Put the rq online, if not already. This happens: ++ * ++ * 1) In the early boot process, because we build the real domains ++ * after all CPUs have been brought up. ++ * ++ * 2) At runtime, if cpuset_cpu_active() fails to rebuild the ++ * domains. ++ */ ++ rq_lock_irqsave(rq, &rf); ++ if (rq->rd) { ++ BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); ++ set_rq_online(rq); ++ } ++ unbind_zero(cpu); ++ rq_unlock_irqrestore(rq, &rf); ++ ++ return 0; ++} ++ ++int sched_cpu_deactivate(unsigned int cpu) ++{ ++ int ret; ++ ++ set_cpu_active(cpu, false); ++ /* ++ * We've cleared cpu_active_mask, wait for all preempt-disabled and RCU ++ * users of this state to go away such that all new such users will ++ * observe it. ++ * ++ * Do sync before park smpboot threads to take care the rcu boost case. ++ */ ++ synchronize_rcu_mult(call_rcu, call_rcu_sched); ++ ++ if (!sched_smp_initialized) ++ return 0; ++ ++ ret = cpuset_cpu_inactive(cpu); ++ if (ret) { ++ set_cpu_active(cpu, true); ++ return ret; ++ } ++ sched_domains_numa_masks_clear(cpu); ++ return 0; ++} ++ ++int sched_cpu_starting(unsigned int cpu) ++{ ++ sched_tick_start(cpu); ++ return 0; ++} ++ ++#ifdef CONFIG_HOTPLUG_CPU ++int sched_cpu_dying(unsigned int cpu) ++{ ++ struct rq *rq = cpu_rq(cpu); ++ unsigned long flags; ++ ++ /* Handle pending wakeups and then migrate everything off */ ++ sched_ttwu_pending(); ++ sched_tick_stop(cpu); ++ ++ local_irq_save(flags); ++ double_rq_lock(rq, cpu_rq(0)); ++ if (rq->rd) { ++ BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); ++ set_rq_offline(rq); ++ } ++ bind_zero(cpu); ++ double_rq_unlock(rq, cpu_rq(0)); ++ sched_start_tick(rq, cpu); ++ hrexpiry_clear(rq); ++ local_irq_restore(flags); ++ ++ return 0; ++} ++#endif ++ ++#if defined(CONFIG_SCHED_SMT) || defined(CONFIG_SCHED_MC) ++/* ++ * Cheaper version of the below functions in case support for SMT and MC is ++ * compiled in but CPUs have no siblings. ++ */ ++static bool sole_cpu_idle(struct rq *rq) ++{ ++ return rq_idle(rq); ++} ++#endif ++#ifdef CONFIG_SCHED_SMT ++static const cpumask_t *thread_cpumask(int cpu) ++{ ++ return topology_sibling_cpumask(cpu); ++} ++/* All this CPU's SMT siblings are idle */ ++static bool siblings_cpu_idle(struct rq *rq) ++{ ++ return cpumask_subset(&rq->thread_mask, &cpu_idle_map); ++} ++#endif ++#ifdef CONFIG_SCHED_MC ++static const cpumask_t *core_cpumask(int cpu) ++{ ++ return topology_core_cpumask(cpu); ++} ++/* All this CPU's shared cache siblings are idle */ ++static bool cache_cpu_idle(struct rq *rq) ++{ ++ return cpumask_subset(&rq->core_mask, &cpu_idle_map); ++} ++#endif ++ ++enum sched_domain_level { ++ SD_LV_NONE = 0, ++ SD_LV_SIBLING, ++ SD_LV_MC, ++ SD_LV_BOOK, ++ SD_LV_CPU, ++ SD_LV_NODE, ++ SD_LV_ALLNODES, ++ SD_LV_MAX ++}; ++ ++void __init sched_init_smp(void) ++{ ++ struct rq *rq, *other_rq, *leader = cpu_rq(0); ++ struct sched_domain *sd; ++ int cpu, other_cpu, i; ++#ifdef CONFIG_SCHED_SMT ++ bool smt_threads = false; ++#endif ++ sched_init_numa(); ++ ++ /* ++ * There's no userspace yet to cause hotplug operations; hence all the ++ * cpu masks are stable and all blatant races in the below code cannot ++ * happen. The hotplug lock is nevertheless taken to satisfy lockdep, ++ * but there won't be any contention on it. ++ */ ++ cpus_read_lock(); ++ mutex_lock(&sched_domains_mutex); ++ sched_init_domains(cpu_active_mask); ++ mutex_unlock(&sched_domains_mutex); ++ cpus_read_unlock(); ++ ++ /* Move init over to a non-isolated CPU */ ++ if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0) ++ BUG(); ++ ++ mutex_lock(&sched_domains_mutex); ++ local_irq_disable(); ++ lock_all_rqs(); ++ /* ++ * Set up the relative cache distance of each online cpu from each ++ * other in a simple array for quick lookup. Locality is determined ++ * by the closest sched_domain that CPUs are separated by. CPUs with ++ * shared cache in SMT and MC are treated as local. Separate CPUs ++ * (within the same package or physically) within the same node are ++ * treated as not local. CPUs not even in the same domain (different ++ * nodes) are treated as very distant. ++ */ ++ for_each_online_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ ++ /* First check if this cpu is in the same node */ ++ for_each_domain(cpu, sd) { ++ if (sd->level > SD_LV_MC) ++ continue; ++ if (rqshare != RQSHARE_ALL) ++ leader = NULL; ++ /* Set locality to local node if not already found lower */ ++ for_each_cpu(other_cpu, sched_domain_span(sd)) { ++ if (rqshare >= RQSHARE_SMP) { ++ other_rq = cpu_rq(other_cpu); ++ ++ /* Set the smp_leader to the first CPU */ ++ if (!leader) ++ leader = rq; ++ other_rq->smp_leader = leader; ++ } ++ ++ if (rq->cpu_locality[other_cpu] > 3) ++ rq->cpu_locality[other_cpu] = 3; ++ } ++ } ++ ++ /* ++ * Each runqueue has its own function in case it doesn't have ++ * siblings of its own allowing mixed topologies. ++ */ ++#ifdef CONFIG_SCHED_MC ++ leader = NULL; ++ if (cpumask_weight(core_cpumask(cpu)) > 1) { ++ cpumask_copy(&rq->core_mask, core_cpumask(cpu)); ++ cpumask_clear_cpu(cpu, &rq->core_mask); ++ for_each_cpu(other_cpu, core_cpumask(cpu)) { ++ if (rqshare == RQSHARE_MC) { ++ other_rq = cpu_rq(other_cpu); ++ ++ /* Set the mc_leader to the first CPU */ ++ if (!leader) ++ leader = rq; ++ other_rq->mc_leader = leader; ++ } ++ if (rq->cpu_locality[other_cpu] > 2) ++ rq->cpu_locality[other_cpu] = 2; ++ } ++ rq->cache_idle = cache_cpu_idle; ++ } ++#endif ++#ifdef CONFIG_SCHED_SMT ++ leader = NULL; ++ if (cpumask_weight(thread_cpumask(cpu)) > 1) { ++ cpumask_copy(&rq->thread_mask, thread_cpumask(cpu)); ++ cpumask_clear_cpu(cpu, &rq->thread_mask); ++ for_each_cpu(other_cpu, thread_cpumask(cpu)) { ++ if (rqshare == RQSHARE_SMT) { ++ other_rq = cpu_rq(other_cpu); ++ ++ /* Set the smt_leader to the first CPU */ ++ if (!leader) ++ leader = rq; ++ other_rq->smt_leader = leader; ++ } ++ if (rq->cpu_locality[other_cpu] > 1) ++ rq->cpu_locality[other_cpu] = 1; ++ } ++ rq->siblings_idle = siblings_cpu_idle; ++ smt_threads = true; ++ } ++#endif ++ } ++ ++#ifdef CONFIG_SMT_NICE ++ if (smt_threads) { ++ check_siblings = &check_smt_siblings; ++ wake_siblings = &wake_smt_siblings; ++ smt_schedule = &smt_should_schedule; ++ } ++#endif ++ unlock_all_rqs(); ++ local_irq_enable(); ++ mutex_unlock(&sched_domains_mutex); ++ ++ for_each_online_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ ++ for_each_online_cpu(other_cpu) { ++ if (other_cpu <= cpu) ++ continue; ++ printk(KERN_DEBUG "MuQSS locality CPU %d to %d: %d\n", cpu, other_cpu, rq->cpu_locality[other_cpu]); ++ } ++ } ++ ++ for_each_online_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ leader = rq->smp_leader; ++ ++ rq_lock(rq); ++ if (leader && rq != leader) { ++ printk(KERN_INFO "Sharing SMP runqueue from CPU %d to CPU %d\n", ++ leader->cpu, rq->cpu); ++ kfree(rq->node); ++ kfree(rq->sl); ++ kfree(rq->lock); ++ rq->node = leader->node; ++ rq->sl = leader->sl; ++ rq->lock = leader->lock; ++ barrier(); ++ /* To make up for not unlocking the freed runlock */ ++ preempt_enable(); ++ } else ++ rq_unlock(rq); ++ } ++ ++#ifdef CONFIG_SCHED_MC ++ for_each_online_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ leader = rq->mc_leader; ++ ++ rq_lock(rq); ++ if (leader && rq != leader) { ++ printk(KERN_INFO "Sharing MC runqueue from CPU %d to CPU %d\n", ++ leader->cpu, rq->cpu); ++ kfree(rq->node); ++ kfree(rq->sl); ++ kfree(rq->lock); ++ rq->node = leader->node; ++ rq->sl = leader->sl; ++ rq->lock = leader->lock; ++ barrier(); ++ /* To make up for not unlocking the freed runlock */ ++ preempt_enable(); ++ } else ++ rq_unlock(rq); ++ } ++#endif /* CONFIG_SCHED_MC */ ++ ++#ifdef CONFIG_SCHED_SMT ++ for_each_online_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ ++ leader = rq->smt_leader; ++ ++ rq_lock(rq); ++ if (leader && rq != leader) { ++ printk(KERN_INFO "Sharing SMT runqueue from CPU %d to CPU %d\n", ++ leader->cpu, rq->cpu); ++ kfree(rq->node); ++ kfree(rq->sl); ++ kfree(rq->lock); ++ rq->node = leader->node; ++ rq->sl = leader->sl; ++ rq->lock = leader->lock; ++ barrier(); ++ /* To make up for not unlocking the freed runlock */ ++ preempt_enable(); ++ } else ++ rq_unlock(rq); ++ } ++#endif /* CONFIG_SCHED_SMT */ ++ ++ total_runqueues = 0; ++ for_each_possible_cpu(cpu) { ++ int locality, total_rqs = 0, total_cpus = 0; ++ ++ rq = cpu_rq(cpu); ++ if ( ++#ifdef CONFIG_SCHED_MC ++ (rq->mc_leader == rq) && ++#endif ++#ifdef CONFIG_SCHED_SMT ++ (rq->smt_leader == rq) && ++#endif ++ (rq->smp_leader == rq)) ++ total_runqueues++; ++ ++ for (locality = 0; locality <= 4; locality++) { ++ int test_cpu; ++ ++ for_each_possible_cpu(test_cpu) { ++ /* Work from each CPU up instead of every rq ++ * starting at CPU 0 */ ++ other_cpu = test_cpu + cpu; ++ other_cpu %= num_possible_cpus(); ++ other_rq = cpu_rq(other_cpu); ++ ++ if (rq->cpu_locality[other_cpu] == locality) { ++ rq->cpu_order[total_cpus++] = other_rq; ++ if ( ++ ++#ifdef CONFIG_SCHED_MC ++ (other_rq->mc_leader == other_rq) && ++#endif ++#ifdef CONFIG_SCHED_SMT ++ (other_rq->smt_leader == other_rq) && ++#endif ++ (other_rq->smp_leader == other_rq)) ++ rq->rq_order[total_rqs++] = other_rq; ++ } ++ } ++ } ++ } ++ ++ for_each_possible_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ for (i = 0; i < total_runqueues; i++) { ++ printk(KERN_DEBUG "CPU %d RQ order %d RQ %d\n", cpu, i, ++ rq->rq_order[i]->cpu); ++ } ++ } ++ for_each_possible_cpu(cpu) { ++ rq = cpu_rq(cpu); ++ for (i = 0; i < num_possible_cpus(); i++) { ++ printk(KERN_DEBUG "CPU %d CPU order %d RQ %d\n", cpu, i, ++ rq->cpu_order[i]->cpu); ++ } ++ } ++ switch (rqshare) { ++ case RQSHARE_ALL: ++ /* This should only ever read 1 */ ++ printk(KERN_INFO "MuQSS runqueue share type ALL total runqueues: %d\n", ++ total_runqueues); ++ break; ++ case RQSHARE_SMP: ++ printk(KERN_INFO "MuQSS runqueue share type SMP total runqueues: %d\n", ++ total_runqueues); ++ break; ++ case RQSHARE_MC: ++ printk(KERN_INFO "MuQSS runqueue share type MC total runqueues: %d\n", ++ total_runqueues); ++ break; ++ case RQSHARE_SMT: ++ printk(KERN_INFO "MuQSS runqueue share type SMT total runqueues: %d\n", ++ total_runqueues); ++ break; ++ case RQSHARE_NONE: ++ printk(KERN_INFO "MuQSS runqueue share type NONE total runqueues: %d\n", ++ total_runqueues); ++ break; ++ } ++ ++ sched_smp_initialized = true; ++} ++#else ++void __init sched_init_smp(void) ++{ ++ sched_smp_initialized = true; ++} ++#endif /* CONFIG_SMP */ ++ ++int in_sched_functions(unsigned long addr) ++{ ++ return in_lock_functions(addr) || ++ (addr >= (unsigned long)__sched_text_start ++ && addr < (unsigned long)__sched_text_end); ++} ++ ++#ifdef CONFIG_CGROUP_SCHED ++/* task group related information */ ++struct task_group { ++ struct cgroup_subsys_state css; ++ ++ struct rcu_head rcu; ++ struct list_head list; ++ ++ struct task_group *parent; ++ struct list_head siblings; ++ struct list_head children; ++}; ++ ++/* ++ * Default task group. ++ * Every task in system belongs to this group at bootup. ++ */ ++struct task_group root_task_group; ++LIST_HEAD(task_groups); ++ ++/* Cacheline aligned slab cache for task_group */ ++static struct kmem_cache *task_group_cache __read_mostly; ++#endif /* CONFIG_CGROUP_SCHED */ ++ ++void __init sched_init(void) ++{ ++#ifdef CONFIG_SMP ++ int cpu_ids; ++#endif ++ int i; ++ struct rq *rq; ++ ++ wait_bit_init(); ++ ++ prio_ratios[0] = 128; ++ for (i = 1 ; i < NICE_WIDTH ; i++) ++ prio_ratios[i] = prio_ratios[i - 1] * 11 / 10; ++ ++ skiplist_node_init(&init_task.node); ++ ++#ifdef CONFIG_SMP ++ init_defrootdomain(); ++ cpumask_clear(&cpu_idle_map); ++#else ++ uprq = &per_cpu(runqueues, 0); ++#endif ++ ++#ifdef CONFIG_CGROUP_SCHED ++ task_group_cache = KMEM_CACHE(task_group, 0); ++ ++ list_add(&root_task_group.list, &task_groups); ++ INIT_LIST_HEAD(&root_task_group.children); ++ INIT_LIST_HEAD(&root_task_group.siblings); ++#endif /* CONFIG_CGROUP_SCHED */ ++ for_each_possible_cpu(i) { ++ rq = cpu_rq(i); ++ rq->node = kmalloc(sizeof(skiplist_node), GFP_ATOMIC); ++ skiplist_init(rq->node); ++ rq->sl = new_skiplist(rq->node); ++ rq->lock = kmalloc(sizeof(raw_spinlock_t), GFP_ATOMIC); ++ raw_spin_lock_init(rq->lock); ++ rq->nr_running = 0; ++ rq->nr_uninterruptible = 0; ++ rq->nr_switches = 0; ++ rq->clock = rq->old_clock = rq->last_niffy = rq->niffies = 0; ++ rq->last_jiffy = jiffies; ++ rq->user_ns = rq->nice_ns = rq->softirq_ns = rq->system_ns = ++ rq->iowait_ns = rq->idle_ns = 0; ++ rq->dither = 0; ++ set_rq_task(rq, &init_task); ++ rq->iso_ticks = 0; ++ rq->iso_refractory = false; ++#ifdef CONFIG_SMP ++ rq->smp_leader = rq; ++#ifdef CONFIG_SCHED_MC ++ rq->mc_leader = rq; ++#endif ++#ifdef CONFIG_SCHED_SMT ++ rq->smt_leader = rq; ++#endif ++ rq->sd = NULL; ++ rq->rd = NULL; ++ rq->online = false; ++ rq->cpu = i; ++ rq_attach_root(rq, &def_root_domain); ++#endif ++ init_rq_hrexpiry(rq); ++ atomic_set(&rq->nr_iowait, 0); ++ } ++ ++#ifdef CONFIG_SMP ++ cpu_ids = i; ++ /* ++ * Set the base locality for cpu cache distance calculation to ++ * "distant" (3). Make sure the distance from a CPU to itself is 0. ++ */ ++ for_each_possible_cpu(i) { ++ int j; ++ ++ rq = cpu_rq(i); ++#ifdef CONFIG_SCHED_SMT ++ rq->siblings_idle = sole_cpu_idle; ++#endif ++#ifdef CONFIG_SCHED_MC ++ rq->cache_idle = sole_cpu_idle; ++#endif ++ rq->cpu_locality = kmalloc(cpu_ids * sizeof(int *), GFP_ATOMIC); ++ for_each_possible_cpu(j) { ++ if (i == j) ++ rq->cpu_locality[j] = 0; ++ else ++ rq->cpu_locality[j] = 4; ++ } ++ rq->rq_order = kmalloc(cpu_ids * sizeof(struct rq *), GFP_ATOMIC); ++ rq->cpu_order = kmalloc(cpu_ids * sizeof(struct rq *), GFP_ATOMIC); ++ rq->rq_order[0] = rq->cpu_order[0] = rq; ++ for (j = 1; j < cpu_ids; j++) ++ rq->rq_order[j] = rq->cpu_order[j] = cpu_rq(j); ++ } ++#endif ++ ++ /* ++ * The boot idle thread does lazy MMU switching as well: ++ */ ++ mmgrab(&init_mm); ++ enter_lazy_tlb(&init_mm, current); ++ ++ /* ++ * Make us the idle thread. Technically, schedule() should not be ++ * called from this thread, however somewhere below it might be, ++ * but because we are the idle thread, we just pick up running again ++ * when this runqueue becomes "idle". ++ */ ++ init_idle(current, smp_processor_id()); ++ ++#ifdef CONFIG_SMP ++ idle_thread_set_boot_cpu(); ++#endif /* SMP */ ++ ++ init_schedstats(); ++ ++ psi_init(); ++} ++ ++#ifdef CONFIG_DEBUG_ATOMIC_SLEEP ++static inline int preempt_count_equals(int preempt_offset) ++{ ++ int nested = preempt_count() + rcu_preempt_depth(); ++ ++ return (nested == preempt_offset); ++} ++ ++void __might_sleep(const char *file, int line, int preempt_offset) ++{ ++ /* ++ * Blocking primitives will set (and therefore destroy) current->state, ++ * since we will exit with TASK_RUNNING make sure we enter with it, ++ * otherwise we will destroy state. ++ */ ++ WARN_ONCE(current->state != TASK_RUNNING && current->task_state_change, ++ "do not call blocking ops when !TASK_RUNNING; " ++ "state=%lx set at [<%p>] %pS\n", ++ current->state, ++ (void *)current->task_state_change, ++ (void *)current->task_state_change); ++ ++ ___might_sleep(file, line, preempt_offset); ++} ++EXPORT_SYMBOL(__might_sleep); ++ ++void ___might_sleep(const char *file, int line, int preempt_offset) ++{ ++ /* Ratelimiting timestamp: */ ++ static unsigned long prev_jiffy; ++ ++ unsigned long preempt_disable_ip; ++ ++ /* WARN_ON_ONCE() by default, no rate limit required: */ ++ rcu_sleep_check(); ++ ++ if ((preempt_count_equals(preempt_offset) && !irqs_disabled() && ++ !is_idle_task(current)) || ++ system_state == SYSTEM_BOOTING || system_state > SYSTEM_RUNNING || ++ oops_in_progress) ++ return; ++ ++ if (time_before(jiffies, prev_jiffy + HZ) && prev_jiffy) ++ return; ++ prev_jiffy = jiffies; ++ ++ /* Save this before calling printk(), since that will clobber it: */ ++ preempt_disable_ip = get_preempt_disable_ip(current); ++ ++ printk(KERN_ERR ++ "BUG: sleeping function called from invalid context at %s:%d\n", ++ file, line); ++ printk(KERN_ERR ++ "in_atomic(): %d, irqs_disabled(): %d, pid: %d, name: %s\n", ++ in_atomic(), irqs_disabled(), ++ current->pid, current->comm); ++ ++ if (task_stack_end_corrupted(current)) ++ printk(KERN_EMERG "Thread overran stack, or stack corrupted\n"); ++ ++ debug_show_held_locks(current); ++ if (irqs_disabled()) ++ print_irqtrace_events(current); ++ if (IS_ENABLED(CONFIG_DEBUG_PREEMPT) ++ && !preempt_count_equals(preempt_offset)) { ++ pr_err("Preemption disabled at:"); ++ print_ip_sym(preempt_disable_ip); ++ pr_cont("\n"); ++ } ++ dump_stack(); ++ add_taint(TAINT_WARN, LOCKDEP_STILL_OK); ++} ++EXPORT_SYMBOL(___might_sleep); ++#endif ++ ++#ifdef CONFIG_MAGIC_SYSRQ ++static inline void normalise_rt_tasks(void) ++{ ++ struct task_struct *g, *p; ++ struct rq_flags rf; ++ struct rq *rq; ++ ++ read_lock(&tasklist_lock); ++ for_each_process_thread(g, p) { ++ /* ++ * Only normalize user tasks: ++ */ ++ if (p->flags & PF_KTHREAD) ++ continue; ++ ++ if (!rt_task(p) && !iso_task(p)) ++ continue; ++ ++ rq = task_rq_lock(p, &rf); ++ __setscheduler(p, rq, SCHED_NORMAL, 0, false); ++ task_rq_unlock(rq, p, &rf); ++ } ++ read_unlock(&tasklist_lock); ++} ++ ++void normalize_rt_tasks(void) ++{ ++ normalise_rt_tasks(); ++} ++#endif /* CONFIG_MAGIC_SYSRQ */ ++ ++#if defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) ++/* ++ * These functions are only useful for the IA64 MCA handling, or kdb. ++ * ++ * They can only be called when the whole system has been ++ * stopped - every CPU needs to be quiescent, and no scheduling ++ * activity can take place. Using them for anything else would ++ * be a serious bug, and as a result, they aren't even visible ++ * under any other configuration. ++ */ ++ ++/** ++ * curr_task - return the current task for a given CPU. ++ * @cpu: the processor in question. ++ * ++ * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED! ++ * ++ * Return: The current task for @cpu. ++ */ ++struct task_struct *curr_task(int cpu) ++{ ++ return cpu_curr(cpu); ++} ++ ++#endif /* defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) */ ++ ++#ifdef CONFIG_IA64 ++/** ++ * set_curr_task - set the current task for a given CPU. ++ * @cpu: the processor in question. ++ * @p: the task pointer to set. ++ * ++ * Description: This function must only be used when non-maskable interrupts ++ * are serviced on a separate stack. It allows the architecture to switch the ++ * notion of the current task on a CPU in a non-blocking manner. This function ++ * must be called with all CPU's synchronised, and interrupts disabled, the ++ * and caller must save the original value of the current task (see ++ * curr_task() above) and restore that value before reenabling interrupts and ++ * re-starting the system. ++ * ++ * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED! ++ */ ++void ia64_set_curr_task(int cpu, struct task_struct *p) ++{ ++ cpu_curr(cpu) = p; ++} ++ ++#endif ++ ++void init_idle_bootup_task(struct task_struct *idle) ++{} ++ ++#ifdef CONFIG_SCHED_DEBUG ++__read_mostly bool sched_debug_enabled; ++ ++void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns, ++ struct seq_file *m) ++{} ++ ++void proc_sched_set_task(struct task_struct *p) ++{} ++#endif ++ ++#ifdef CONFIG_SMP ++#define SCHED_LOAD_SHIFT (10) ++#define SCHED_LOAD_SCALE (1L << SCHED_LOAD_SHIFT) ++ ++unsigned long default_scale_freq_power(struct sched_domain *sd, int cpu) ++{ ++ return SCHED_LOAD_SCALE; ++} ++ ++unsigned long default_scale_smt_power(struct sched_domain *sd, int cpu) ++{ ++ unsigned long weight = cpumask_weight(sched_domain_span(sd)); ++ unsigned long smt_gain = sd->smt_gain; ++ ++ smt_gain /= weight; ++ ++ return smt_gain; ++} ++#endif ++ ++#ifdef CONFIG_CGROUP_SCHED ++static void sched_free_group(struct task_group *tg) ++{ ++ kmem_cache_free(task_group_cache, tg); ++} ++ ++/* allocate runqueue etc for a new task group */ ++struct task_group *sched_create_group(struct task_group *parent) ++{ ++ struct task_group *tg; ++ ++ tg = kmem_cache_alloc(task_group_cache, GFP_KERNEL | __GFP_ZERO); ++ if (!tg) ++ return ERR_PTR(-ENOMEM); ++ ++ return tg; ++} ++ ++void sched_online_group(struct task_group *tg, struct task_group *parent) ++{ ++} ++ ++/* rcu callback to free various structures associated with a task group */ ++static void sched_free_group_rcu(struct rcu_head *rhp) ++{ ++ /* Now it should be safe to free those cfs_rqs */ ++ sched_free_group(container_of(rhp, struct task_group, rcu)); ++} ++ ++void sched_destroy_group(struct task_group *tg) ++{ ++ /* Wait for possible concurrent references to cfs_rqs complete */ ++ call_rcu(&tg->rcu, sched_free_group_rcu); ++} ++ ++void sched_offline_group(struct task_group *tg) ++{ ++} ++ ++static inline struct task_group *css_tg(struct cgroup_subsys_state *css) ++{ ++ return css ? container_of(css, struct task_group, css) : NULL; ++} ++ ++static struct cgroup_subsys_state * ++cpu_cgroup_css_alloc(struct cgroup_subsys_state *parent_css) ++{ ++ struct task_group *parent = css_tg(parent_css); ++ struct task_group *tg; ++ ++ if (!parent) { ++ /* This is early initialization for the top cgroup */ ++ return &root_task_group.css; ++ } ++ ++ tg = sched_create_group(parent); ++ if (IS_ERR(tg)) ++ return ERR_PTR(-ENOMEM); ++ return &tg->css; ++} ++ ++/* Expose task group only after completing cgroup initialization */ ++static int cpu_cgroup_css_online(struct cgroup_subsys_state *css) ++{ ++ struct task_group *tg = css_tg(css); ++ struct task_group *parent = css_tg(css->parent); ++ ++ if (parent) ++ sched_online_group(tg, parent); ++ return 0; ++} ++ ++static void cpu_cgroup_css_released(struct cgroup_subsys_state *css) ++{ ++ struct task_group *tg = css_tg(css); ++ ++ sched_offline_group(tg); ++} ++ ++static void cpu_cgroup_css_free(struct cgroup_subsys_state *css) ++{ ++ struct task_group *tg = css_tg(css); ++ ++ /* ++ * Relies on the RCU grace period between css_released() and this. ++ */ ++ sched_free_group(tg); ++} ++ ++static void cpu_cgroup_fork(struct task_struct *task) ++{ ++} ++ ++static int cpu_cgroup_can_attach(struct cgroup_taskset *tset) ++{ ++ return 0; ++} ++ ++static void cpu_cgroup_attach(struct cgroup_taskset *tset) ++{ ++} ++ ++static struct cftype cpu_legacy_files[] = { ++ { } /* Terminate */ ++}; ++ ++static struct cftype cpu_files[] = { ++ { } /* terminate */ ++}; ++ ++static int cpu_extra_stat_show(struct seq_file *sf, ++ struct cgroup_subsys_state *css) ++{ ++ return 0; ++} ++ ++struct cgroup_subsys cpu_cgrp_subsys = { ++ .css_alloc = cpu_cgroup_css_alloc, ++ .css_online = cpu_cgroup_css_online, ++ .css_released = cpu_cgroup_css_released, ++ .css_free = cpu_cgroup_css_free, ++ .css_extra_stat_show = cpu_extra_stat_show, ++ .fork = cpu_cgroup_fork, ++ .can_attach = cpu_cgroup_can_attach, ++ .attach = cpu_cgroup_attach, ++ .legacy_cftypes = cpu_files, ++ .legacy_cftypes = cpu_legacy_files, ++ .dfl_cftypes = cpu_files, ++ .early_init = true, ++ .threaded = true, ++}; ++#endif /* CONFIG_CGROUP_SCHED */ ++ ++#undef CREATE_TRACE_POINTS +diff --git a/kernel/sched/MuQSS.h b/kernel/sched/MuQSS.h +new file mode 100644 +index 000000000000..78642f59b3f2 +--- /dev/null ++++ b/kernel/sched/MuQSS.h +@@ -0,0 +1,917 @@ ++/* SPDX-License-Identifier: GPL-2.0 */ ++#ifndef MUQSS_SCHED_H ++#define MUQSS_SCHED_H ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#ifdef CONFIG_PARAVIRT ++#include ++#endif ++ ++#include "cpupri.h" ++ ++#ifdef CONFIG_SCHED_DEBUG ++# define SCHED_WARN_ON(x) WARN_ONCE(x, #x) ++#else ++# define SCHED_WARN_ON(x) ((void)(x)) ++#endif ++ ++/* task_struct::on_rq states: */ ++#define TASK_ON_RQ_QUEUED 1 ++#define TASK_ON_RQ_MIGRATING 2 ++ ++struct rq; ++ ++#ifdef CONFIG_SMP ++ ++static inline bool sched_asym_prefer(int a, int b) ++{ ++ return arch_asym_cpu_priority(a) > arch_asym_cpu_priority(b); ++} ++ ++/* ++ * We add the notion of a root-domain which will be used to define per-domain ++ * variables. Each exclusive cpuset essentially defines an island domain by ++ * fully partitioning the member cpus from any other cpuset. Whenever a new ++ * exclusive cpuset is created, we also create and attach a new root-domain ++ * object. ++ * ++ */ ++struct root_domain { ++ atomic_t refcount; ++ atomic_t rto_count; ++ struct rcu_head rcu; ++ cpumask_var_t span; ++ cpumask_var_t online; ++ ++ /* ++ * Indicate pullable load on at least one CPU, e.g: ++ * - More than one runnable task ++ * - Running task is misfit ++ */ ++ int overload; ++ ++ /* ++ * The bit corresponding to a CPU gets set here if such CPU has more ++ * than one runnable -deadline task (as it is below for RT tasks). ++ */ ++ cpumask_var_t dlo_mask; ++ atomic_t dlo_count; ++ /* Replace unused CFS structures with void */ ++ //struct dl_bw dl_bw; ++ //struct cpudl cpudl; ++ void *dl_bw; ++ void *cpudl; ++ ++ /* ++ * The "RT overload" flag: it gets set if a CPU has more than ++ * one runnable RT task. ++ */ ++ cpumask_var_t rto_mask; ++ //struct cpupri cpupri; ++ void *cpupri; ++ ++ unsigned long max_cpu_capacity; ++}; ++ ++extern struct root_domain def_root_domain; ++extern struct mutex sched_domains_mutex; ++ ++extern void init_defrootdomain(void); ++extern int sched_init_domains(const struct cpumask *cpu_map); ++extern void rq_attach_root(struct rq *rq, struct root_domain *rd); ++ ++static inline void cpupri_cleanup(void __maybe_unused *cpupri) ++{ ++} ++ ++static inline void cpudl_cleanup(void __maybe_unused *cpudl) ++{ ++} ++ ++static inline void init_dl_bw(void __maybe_unused *dl_bw) ++{ ++} ++ ++static inline int cpudl_init(void __maybe_unused *dl_bw) ++{ ++ return 0; ++} ++ ++static inline int cpupri_init(void __maybe_unused *cpupri) ++{ ++ return 0; ++} ++#endif /* CONFIG_SMP */ ++ ++/* ++ * This is the main, per-CPU runqueue data structure. ++ * This data should only be modified by the local cpu. ++ */ ++struct rq { ++ raw_spinlock_t *lock; ++ raw_spinlock_t *orig_lock; ++ ++ struct task_struct *curr, *idle, *stop; ++ struct mm_struct *prev_mm; ++ ++ unsigned int nr_running; ++ /* ++ * This is part of a global counter where only the total sum ++ * over all CPUs matters. A task can increase this counter on ++ * one CPU and if it got migrated afterwards it may decrease ++ * it on another CPU. Always updated under the runqueue lock: ++ */ ++ unsigned long nr_uninterruptible; ++ u64 nr_switches; ++ ++ /* Stored data about rq->curr to work outside rq lock */ ++ u64 rq_deadline; ++ int rq_prio; ++ ++ /* Best queued id for use outside lock */ ++ u64 best_key; ++ ++ unsigned long last_scheduler_tick; /* Last jiffy this RQ ticked */ ++ unsigned long last_jiffy; /* Last jiffy this RQ updated rq clock */ ++ u64 niffies; /* Last time this RQ updated rq clock */ ++ u64 last_niffy; /* Last niffies as updated by local clock */ ++ u64 last_jiffy_niffies; /* Niffies @ last_jiffy */ ++ ++ u64 load_update; /* When we last updated load */ ++ unsigned long load_avg; /* Rolling load average */ ++#ifdef CONFIG_HAVE_SCHED_AVG_IRQ ++ u64 irq_load_update; /* When we last updated IRQ load */ ++ unsigned long irq_load_avg; /* Rolling IRQ load average */ ++#endif ++#ifdef CONFIG_SMT_NICE ++ struct mm_struct *rq_mm; ++ int rq_smt_bias; /* Policy/nice level bias across smt siblings */ ++#endif ++ /* Accurate timekeeping data */ ++ unsigned long user_ns, nice_ns, irq_ns, softirq_ns, system_ns, ++ iowait_ns, idle_ns; ++ atomic_t nr_iowait; ++ ++ skiplist_node *node; ++ skiplist *sl; ++#ifdef CONFIG_SMP ++ struct task_struct *preempt; /* Preempt triggered on this task */ ++ struct task_struct *preempting; /* Hint only, what task is preempting */ ++ ++ int cpu; /* cpu of this runqueue */ ++ bool online; ++ ++ struct root_domain *rd; ++ struct sched_domain *sd; ++ ++ unsigned long cpu_capacity_orig; ++ ++ int *cpu_locality; /* CPU relative cache distance */ ++ struct rq **rq_order; /* Shared RQs ordered by relative cache distance */ ++ struct rq **cpu_order; /* RQs of discrete CPUs ordered by distance */ ++ ++ struct rq *smp_leader; /* First physical CPU per node */ ++#ifdef CONFIG_SCHED_SMT ++ struct rq *smt_leader; /* First logical CPU in SMT siblings */ ++ cpumask_t thread_mask; ++ bool (*siblings_idle)(struct rq *rq); ++ /* See if all smt siblings are idle */ ++#endif /* CONFIG_SCHED_SMT */ ++#ifdef CONFIG_SCHED_MC ++ struct rq *mc_leader; /* First logical CPU in MC siblings */ ++ cpumask_t core_mask; ++ bool (*cache_idle)(struct rq *rq); ++ /* See if all cache siblings are idle */ ++#endif /* CONFIG_SCHED_MC */ ++#endif /* CONFIG_SMP */ ++#ifdef CONFIG_IRQ_TIME_ACCOUNTING ++ u64 prev_irq_time; ++#endif /* CONFIG_IRQ_TIME_ACCOUNTING */ ++#ifdef CONFIG_PARAVIRT ++ u64 prev_steal_time; ++#endif /* CONFIG_PARAVIRT */ ++#ifdef CONFIG_PARAVIRT_TIME_ACCOUNTING ++ u64 prev_steal_time_rq; ++#endif /* CONFIG_PARAVIRT_TIME_ACCOUNTING */ ++ ++ u64 clock, old_clock, last_tick; ++ u64 clock_task; ++ int dither; ++ ++ int iso_ticks; ++ bool iso_refractory; ++ ++#ifdef CONFIG_HIGH_RES_TIMERS ++ struct hrtimer hrexpiry_timer; ++#endif ++ ++ int rt_nr_running; /* Number real time tasks running */ ++#ifdef CONFIG_SCHEDSTATS ++ ++ /* latency stats */ ++ struct sched_info rq_sched_info; ++ unsigned long long rq_cpu_time; ++ /* could above be rq->cfs_rq.exec_clock + rq->rt_rq.rt_runtime ? */ ++ ++ /* sys_sched_yield() stats */ ++ unsigned int yld_count; ++ ++ /* schedule() stats */ ++ unsigned int sched_switch; ++ unsigned int sched_count; ++ unsigned int sched_goidle; ++ ++ /* try_to_wake_up() stats */ ++ unsigned int ttwu_count; ++ unsigned int ttwu_local; ++#endif /* CONFIG_SCHEDSTATS */ ++ ++#ifdef CONFIG_SMP ++ struct llist_head wake_list; ++#endif ++ ++#ifdef CONFIG_CPU_IDLE ++ /* Must be inspected within a rcu lock section */ ++ struct cpuidle_state *idle_state; ++#endif ++}; ++ ++struct rq_flags { ++ unsigned long flags; ++}; ++ ++#ifdef CONFIG_SMP ++struct rq *cpu_rq(int cpu); ++#endif ++ ++#ifndef CONFIG_SMP ++extern struct rq *uprq; ++#define cpu_rq(cpu) (uprq) ++#define this_rq() (uprq) ++#define raw_rq() (uprq) ++#define task_rq(p) (uprq) ++#define cpu_curr(cpu) ((uprq)->curr) ++#else /* CONFIG_SMP */ ++DECLARE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues); ++#define this_rq() this_cpu_ptr(&runqueues) ++#define raw_rq() raw_cpu_ptr(&runqueues) ++#define task_rq(p) cpu_rq(task_cpu(p)) ++#endif /* CONFIG_SMP */ ++ ++static inline int task_current(struct rq *rq, struct task_struct *p) ++{ ++ return rq->curr == p; ++} ++ ++static inline int task_running(struct rq *rq, struct task_struct *p) ++{ ++#ifdef CONFIG_SMP ++ return p->on_cpu; ++#else ++ return task_current(rq, p); ++#endif ++} ++ ++static inline int task_on_rq_queued(struct task_struct *p) ++{ ++ return p->on_rq == TASK_ON_RQ_QUEUED; ++} ++ ++static inline int task_on_rq_migrating(struct task_struct *p) ++{ ++ return p->on_rq == TASK_ON_RQ_MIGRATING; ++} ++ ++static inline void rq_lock(struct rq *rq) ++ __acquires(rq->lock) ++{ ++ raw_spin_lock(rq->lock); ++} ++ ++static inline void rq_unlock(struct rq *rq) ++ __releases(rq->lock) ++{ ++ raw_spin_unlock(rq->lock); ++} ++ ++static inline void rq_lock_irq(struct rq *rq) ++ __acquires(rq->lock) ++{ ++ raw_spin_lock_irq(rq->lock); ++} ++ ++static inline void rq_unlock_irq(struct rq *rq, struct rq_flags __always_unused *rf) ++ __releases(rq->lock) ++{ ++ raw_spin_unlock_irq(rq->lock); ++} ++ ++static inline void rq_lock_irqsave(struct rq *rq, struct rq_flags *rf) ++ __acquires(rq->lock) ++{ ++ raw_spin_lock_irqsave(rq->lock, rf->flags); ++} ++ ++static inline void rq_unlock_irqrestore(struct rq *rq, struct rq_flags *rf) ++ __releases(rq->lock) ++{ ++ raw_spin_unlock_irqrestore(rq->lock, rf->flags); ++} ++ ++static inline struct rq *task_rq_lock(struct task_struct *p, struct rq_flags *rf) ++ __acquires(p->pi_lock) ++ __acquires(rq->lock) ++{ ++ struct rq *rq; ++ ++ while (42) { ++ raw_spin_lock_irqsave(&p->pi_lock, rf->flags); ++ rq = task_rq(p); ++ raw_spin_lock(rq->lock); ++ if (likely(rq == task_rq(p))) ++ break; ++ raw_spin_unlock(rq->lock); ++ raw_spin_unlock_irqrestore(&p->pi_lock, rf->flags); ++ } ++ return rq; ++} ++ ++static inline void task_rq_unlock(struct rq *rq, struct task_struct *p, struct rq_flags *rf) ++ __releases(rq->lock) ++ __releases(p->pi_lock) ++{ ++ rq_unlock(rq); ++ raw_spin_unlock_irqrestore(&p->pi_lock, rf->flags); ++} ++ ++static inline struct rq *__task_rq_lock(struct task_struct *p, struct rq_flags __always_unused *rf) ++ __acquires(rq->lock) ++{ ++ struct rq *rq; ++ ++ lockdep_assert_held(&p->pi_lock); ++ ++ while (42) { ++ rq = task_rq(p); ++ raw_spin_lock(rq->lock); ++ if (likely(rq == task_rq(p))) ++ break; ++ raw_spin_unlock(rq->lock); ++ } ++ return rq; ++} ++ ++static inline void __task_rq_unlock(struct rq *rq, struct rq_flags __always_unused *rf) ++{ ++ rq_unlock(rq); ++} ++ ++static inline struct rq * ++this_rq_lock_irq(struct rq_flags *rf) ++ __acquires(rq->lock) ++{ ++ struct rq *rq; ++ ++ local_irq_disable(); ++ rq = this_rq(); ++ rq_lock(rq); ++ return rq; ++} ++ ++/* ++ * {de,en}queue flags: Most not used on MuQSS. ++ * ++ * DEQUEUE_SLEEP - task is no longer runnable ++ * ENQUEUE_WAKEUP - task just became runnable ++ * ++ * SAVE/RESTORE - an otherwise spurious dequeue/enqueue, done to ensure tasks ++ * are in a known state which allows modification. Such pairs ++ * should preserve as much state as possible. ++ * ++ * MOVE - paired with SAVE/RESTORE, explicitly does not preserve the location ++ * in the runqueue. ++ * ++ * ENQUEUE_HEAD - place at front of runqueue (tail if not specified) ++ * ENQUEUE_REPLENISH - CBS (replenish runtime and postpone deadline) ++ * ENQUEUE_MIGRATED - the task was migrated during wakeup ++ * ++ */ ++ ++#define DEQUEUE_SLEEP 0x01 ++#define DEQUEUE_SAVE 0x02 /* matches ENQUEUE_RESTORE */ ++ ++#define ENQUEUE_WAKEUP 0x01 ++#define ENQUEUE_RESTORE 0x02 ++ ++#ifdef CONFIG_SMP ++#define ENQUEUE_MIGRATED 0x40 ++#else ++#define ENQUEUE_MIGRATED 0x00 ++#endif ++ ++static inline u64 __rq_clock_broken(struct rq *rq) ++{ ++ return READ_ONCE(rq->clock); ++} ++ ++static inline u64 rq_clock(struct rq *rq) ++{ ++ lockdep_assert_held(rq->lock); ++ ++ return rq->clock; ++} ++ ++static inline u64 rq_clock_task(struct rq *rq) ++{ ++ lockdep_assert_held(rq->lock); ++ ++ return rq->clock_task; ++} ++ ++#ifdef CONFIG_NUMA ++enum numa_topology_type { ++ NUMA_DIRECT, ++ NUMA_GLUELESS_MESH, ++ NUMA_BACKPLANE, ++}; ++extern enum numa_topology_type sched_numa_topology_type; ++extern int sched_max_numa_distance; ++extern bool find_numa_distance(int distance); ++ ++extern void sched_init_numa(void); ++extern void sched_domains_numa_masks_set(unsigned int cpu); ++extern void sched_domains_numa_masks_clear(unsigned int cpu); ++#else ++static inline void sched_init_numa(void) { } ++static inline void sched_domains_numa_masks_set(unsigned int cpu) { } ++static inline void sched_domains_numa_masks_clear(unsigned int cpu) { } ++#endif ++ ++extern struct mutex sched_domains_mutex; ++extern struct static_key_false sched_schedstats; ++ ++#define rcu_dereference_check_sched_domain(p) \ ++ rcu_dereference_check((p), \ ++ lockdep_is_held(&sched_domains_mutex)) ++ ++#ifdef CONFIG_SMP ++ ++/* ++ * The domain tree (rq->sd) is protected by RCU's quiescent state transition. ++ * See detach_destroy_domains: synchronize_sched for details. ++ * ++ * The domain tree of any CPU may only be accessed from within ++ * preempt-disabled sections. ++ */ ++#define for_each_domain(cpu, __sd) \ ++ for (__sd = rcu_dereference_check_sched_domain(cpu_rq(cpu)->sd); \ ++ __sd; __sd = __sd->parent) ++ ++#define for_each_lower_domain(sd) for (; sd; sd = sd->child) ++ ++/** ++ * highest_flag_domain - Return highest sched_domain containing flag. ++ * @cpu: The cpu whose highest level of sched domain is to ++ * be returned. ++ * @flag: The flag to check for the highest sched_domain ++ * for the given cpu. ++ * ++ * Returns the highest sched_domain of a cpu which contains the given flag. ++ */ ++static inline struct sched_domain *highest_flag_domain(int cpu, int flag) ++{ ++ struct sched_domain *sd, *hsd = NULL; ++ ++ for_each_domain(cpu, sd) { ++ if (!(sd->flags & flag)) ++ break; ++ hsd = sd; ++ } ++ ++ return hsd; ++} ++ ++static inline struct sched_domain *lowest_flag_domain(int cpu, int flag) ++{ ++ struct sched_domain *sd; ++ ++ for_each_domain(cpu, sd) { ++ if (sd->flags & flag) ++ break; ++ } ++ ++ return sd; ++} ++ ++DECLARE_PER_CPU(struct sched_domain *, sd_llc); ++DECLARE_PER_CPU(int, sd_llc_size); ++DECLARE_PER_CPU(int, sd_llc_id); ++DECLARE_PER_CPU(struct sched_domain_shared *, sd_llc_shared); ++DECLARE_PER_CPU(struct sched_domain *, sd_numa); ++DECLARE_PER_CPU(struct sched_domain *, sd_asym); ++ ++struct sched_group_capacity { ++ atomic_t ref; ++ /* ++ * CPU capacity of this group, SCHED_CAPACITY_SCALE being max capacity ++ * for a single CPU. ++ */ ++ unsigned long capacity; ++ unsigned long min_capacity; /* Min per-CPU capacity in group */ ++ unsigned long max_capacity; /* Max per-CPU capacity in group */ ++ unsigned long next_update; ++ int imbalance; /* XXX unrelated to capacity but shared group state */ ++ ++#ifdef CONFIG_SCHED_DEBUG ++ int id; ++#endif ++ ++ unsigned long cpumask[0]; /* balance mask */ ++}; ++ ++struct sched_group { ++ struct sched_group *next; /* Must be a circular list */ ++ atomic_t ref; ++ ++ unsigned int group_weight; ++ struct sched_group_capacity *sgc; ++ int asym_prefer_cpu; /* cpu of highest priority in group */ ++ ++ /* ++ * The CPUs this group covers. ++ * ++ * NOTE: this field is variable length. (Allocated dynamically ++ * by attaching extra space to the end of the structure, ++ * depending on how many CPUs the kernel has booted up with) ++ */ ++ unsigned long cpumask[0]; ++}; ++ ++static inline struct cpumask *sched_group_span(struct sched_group *sg) ++{ ++ return to_cpumask(sg->cpumask); ++} ++ ++/* ++ * See build_balance_mask(). ++ */ ++static inline struct cpumask *group_balance_mask(struct sched_group *sg) ++{ ++ return to_cpumask(sg->sgc->cpumask); ++} ++ ++/** ++ * group_first_cpu - Returns the first cpu in the cpumask of a sched_group. ++ * @group: The group whose first cpu is to be returned. ++ */ ++static inline unsigned int group_first_cpu(struct sched_group *group) ++{ ++ return cpumask_first(sched_group_span(group)); ++} ++ ++ ++#if defined(CONFIG_SCHED_DEBUG) && defined(CONFIG_SYSCTL) ++void register_sched_domain_sysctl(void); ++void dirty_sched_domain_sysctl(int cpu); ++void unregister_sched_domain_sysctl(void); ++#else ++static inline void register_sched_domain_sysctl(void) ++{ ++} ++static inline void dirty_sched_domain_sysctl(int cpu) ++{ ++} ++static inline void unregister_sched_domain_sysctl(void) ++{ ++} ++#endif ++ ++extern void sched_ttwu_pending(void); ++extern void set_cpus_allowed_common(struct task_struct *p, const struct cpumask *new_mask); ++extern void set_rq_online (struct rq *rq); ++extern void set_rq_offline(struct rq *rq); ++extern bool sched_smp_initialized; ++ ++static inline void update_group_capacity(struct sched_domain *sd, int cpu) ++{ ++} ++ ++static inline void trigger_load_balance(struct rq *rq) ++{ ++} ++ ++#define sched_feat(x) 0 ++ ++#else /* CONFIG_SMP */ ++ ++static inline void sched_ttwu_pending(void) { } ++ ++#endif /* CONFIG_SMP */ ++ ++#ifdef CONFIG_CPU_IDLE ++static inline void idle_set_state(struct rq *rq, ++ struct cpuidle_state *idle_state) ++{ ++ rq->idle_state = idle_state; ++} ++ ++static inline struct cpuidle_state *idle_get_state(struct rq *rq) ++{ ++ SCHED_WARN_ON(!rcu_read_lock_held()); ++ return rq->idle_state; ++} ++#else ++static inline void idle_set_state(struct rq *rq, ++ struct cpuidle_state *idle_state) ++{ ++} ++ ++static inline struct cpuidle_state *idle_get_state(struct rq *rq) ++{ ++ return NULL; ++} ++#endif ++ ++#ifdef CONFIG_SCHED_DEBUG ++extern bool sched_debug_enabled; ++#endif ++ ++extern void schedule_idle(void); ++ ++#ifdef CONFIG_IRQ_TIME_ACCOUNTING ++struct irqtime { ++ u64 total; ++ u64 tick_delta; ++ u64 irq_start_time; ++ struct u64_stats_sync sync; ++}; ++ ++DECLARE_PER_CPU(struct irqtime, cpu_irqtime); ++ ++/* ++ * Returns the irqtime minus the softirq time computed by ksoftirqd. ++ * Otherwise ksoftirqd's sum_exec_runtime is substracted its own runtime ++ * and never move forward. ++ */ ++static inline u64 irq_time_read(int cpu) ++{ ++ struct irqtime *irqtime = &per_cpu(cpu_irqtime, cpu); ++ unsigned int seq; ++ u64 total; ++ ++ do { ++ seq = __u64_stats_fetch_begin(&irqtime->sync); ++ total = irqtime->total; ++ } while (__u64_stats_fetch_retry(&irqtime->sync, seq)); ++ ++ return total; ++} ++#endif /* CONFIG_IRQ_TIME_ACCOUNTING */ ++ ++#ifdef CONFIG_SMP ++static inline int cpu_of(struct rq *rq) ++{ ++ return rq->cpu; ++} ++#else /* CONFIG_SMP */ ++static inline int cpu_of(struct rq *rq) ++{ ++ return 0; ++} ++#endif ++ ++#ifdef CONFIG_CPU_FREQ ++DECLARE_PER_CPU(struct update_util_data *, cpufreq_update_util_data); ++ ++static inline void cpufreq_trigger(struct rq *rq, unsigned int flags) ++{ ++ struct update_util_data *data; ++ ++ data = rcu_dereference_sched(*per_cpu_ptr(&cpufreq_update_util_data, ++ cpu_of(rq))); ++ ++ if (data) ++ data->func(data, rq->niffies, flags); ++} ++#else ++static inline void cpufreq_trigger(struct rq *rq, unsigned int flag) ++{ ++} ++#endif /* CONFIG_CPU_FREQ */ ++ ++#ifdef arch_scale_freq_capacity ++#ifndef arch_scale_freq_invariant ++#define arch_scale_freq_invariant() (true) ++#endif ++#else /* arch_scale_freq_capacity */ ++#define arch_scale_freq_invariant() (false) ++#endif ++ ++/* ++ * This should only be called when current == rq->idle. Dodgy workaround for ++ * when softirqs are pending and we are in the idle loop. Setting current to ++ * resched will kick us out of the idle loop and the softirqs will be serviced ++ * on our next pass through schedule(). ++ */ ++static inline bool softirq_pending(int cpu) ++{ ++ if (likely(!local_softirq_pending())) ++ return false; ++ set_tsk_need_resched(current); ++ return true; ++} ++ ++#ifdef CONFIG_64BIT ++static inline u64 read_sum_exec_runtime(struct task_struct *t) ++{ ++ return tsk_seruntime(t); ++} ++#else ++struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags); ++void task_rq_unlock(struct rq *rq, struct task_struct *p, unsigned long *flags); ++ ++static inline u64 read_sum_exec_runtime(struct task_struct *t) ++{ ++ unsigned long flags; ++ u64 ns; ++ struct rq *rq; ++ ++ rq = task_rq_lock(t, &flags); ++ ns = tsk_seruntime(t); ++ task_rq_unlock(rq, t, &flags); ++ ++ return ns; ++} ++#endif ++ ++#ifndef arch_scale_freq_capacity ++static __always_inline ++unsigned long arch_scale_freq_capacity(int cpu) ++{ ++ return SCHED_CAPACITY_SCALE; ++} ++#endif ++ ++#ifdef CONFIG_NO_HZ_FULL ++extern bool sched_can_stop_tick(struct rq *rq); ++extern int __init sched_tick_offload_init(void); ++ ++/* ++ * Tick may be needed by tasks in the runqueue depending on their policy and ++ * requirements. If tick is needed, lets send the target an IPI to kick it out of ++ * nohz mode if necessary. ++ */ ++static inline void sched_update_tick_dependency(struct rq *rq) ++{ ++ int cpu; ++ ++ if (!tick_nohz_full_enabled()) ++ return; ++ ++ cpu = cpu_of(rq); ++ ++ if (!tick_nohz_full_cpu(cpu)) ++ return; ++ ++ if (sched_can_stop_tick(rq)) ++ tick_nohz_dep_clear_cpu(cpu, TICK_DEP_BIT_SCHED); ++ else ++ tick_nohz_dep_set_cpu(cpu, TICK_DEP_BIT_SCHED); ++} ++#else ++static inline int sched_tick_offload_init(void) { return 0; } ++static inline void sched_update_tick_dependency(struct rq *rq) { } ++#endif ++ ++#ifdef CONFIG_SMP ++ ++#ifndef arch_scale_cpu_capacity ++static __always_inline ++unsigned long arch_scale_cpu_capacity(struct sched_domain *sd, int cpu) ++{ ++ if (sd && (sd->flags & SD_SHARE_CPUCAPACITY) && (sd->span_weight > 1)) ++ return sd->smt_gain / sd->span_weight; ++ ++ return SCHED_CAPACITY_SCALE; ++} ++#endif ++#else ++#ifndef arch_scale_cpu_capacity ++static __always_inline ++unsigned long arch_scale_cpu_capacity(void __always_unused *sd, int cpu) ++{ ++ return SCHED_CAPACITY_SCALE; ++} ++#endif ++#endif ++ ++#define SCHED_FLAG_SUGOV 0x10000000 ++ ++static inline bool rt_rq_is_runnable(struct rq *rt_rq) ++{ ++ return rt_rq->rt_nr_running; ++} ++ ++#ifdef CONFIG_CPU_FREQ_GOV_SCHEDUTIL ++ ++static inline unsigned long cpu_bw_dl(struct rq *rq) ++{ ++ return 0; ++} ++ ++static inline unsigned long cpu_util_dl(struct rq *rq) ++{ ++ return 0; ++} ++ ++static inline unsigned long cpu_util_cfs(struct rq *rq) ++{ ++ unsigned long ret = READ_ONCE(rq->load_avg); ++ ++ if (ret > SCHED_CAPACITY_SCALE) ++ ret = SCHED_CAPACITY_SCALE; ++ return ret; ++} ++ ++static inline unsigned long cpu_util_rt(struct rq *rq) ++{ ++ unsigned long ret = READ_ONCE(rq->rt_nr_running); ++ ++ if (ret > SCHED_CAPACITY_SCALE) ++ ret = SCHED_CAPACITY_SCALE; ++ return ret; ++} ++ ++#ifdef CONFIG_HAVE_SCHED_AVG_IRQ ++static inline unsigned long cpu_util_irq(struct rq *rq) ++{ ++ unsigned long ret = READ_ONCE(rq->irq_load_avg); ++ ++ if (ret > SCHED_CAPACITY_SCALE) ++ ret = SCHED_CAPACITY_SCALE; ++ return ret; ++} ++ ++static inline ++unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned long max) ++{ ++ util *= (max - irq); ++ util /= max; ++ ++ return util; ++ ++} ++#else ++static inline unsigned long cpu_util_irq(struct rq *rq) ++{ ++ return 0; ++} ++ ++static inline ++unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned long max) ++{ ++ return util; ++} ++#endif ++#endif ++ ++#endif /* MUQSS_SCHED_H */ +diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c +index 3fffad3bc8a8..6b24e37325ae 100644 +--- a/kernel/sched/cpufreq_schedutil.c ++++ b/kernel/sched/cpufreq_schedutil.c +@@ -177,6 +177,12 @@ static unsigned int get_next_freq(struct sugov_policy *sg_policy, + return cpufreq_driver_resolve_freq(policy, freq); + } + ++#ifdef CONFIG_SCHED_MUQSS ++#define rt_rq_runnable(rq_rt) rt_rq_is_runnable(rq) ++#else ++#define rt_rq_runnable(rq_rt) rt_rq_is_runnable(&rq->rt) ++#endif ++ + /* + * This function computes an effective utilization for the given CPU, to be + * used for frequency selection given the linear relation: f = u * f_max. +@@ -205,7 +211,7 @@ static unsigned long sugov_get_util(struct sugov_cpu *sg_cpu) + sg_cpu->max = max = arch_scale_cpu_capacity(NULL, sg_cpu->cpu); + sg_cpu->bw_dl = cpu_bw_dl(rq); + +- if (rt_rq_is_runnable(&rq->rt)) ++ if (rt_rq_runnable(rq)) + return max; + + /* +@@ -626,7 +632,11 @@ static int sugov_kthread_create(struct sugov_policy *sg_policy) + struct task_struct *thread; + struct sched_attr attr = { + .size = sizeof(struct sched_attr), ++#ifdef CONFIG_SCHED_MUQSS ++ .sched_policy = SCHED_RR, ++#else + .sched_policy = SCHED_DEADLINE, ++#endif + .sched_flags = SCHED_FLAG_SUGOV, + .sched_nice = 0, + .sched_priority = 0, +diff --git a/kernel/sched/cpupri.h b/kernel/sched/cpupri.h +index 7dc20a3232e7..e733a0a53b0a 100644 +--- a/kernel/sched/cpupri.h ++++ b/kernel/sched/cpupri.h +@@ -17,9 +17,11 @@ struct cpupri { + int *cpu_to_pri; + }; + ++#ifndef CONFIG_SCHED_MUQSS + #ifdef CONFIG_SMP + int cpupri_find(struct cpupri *cp, struct task_struct *p, struct cpumask *lowest_mask); + void cpupri_set(struct cpupri *cp, int cpu, int pri); + int cpupri_init(struct cpupri *cp); + void cpupri_cleanup(struct cpupri *cp); + #endif ++#endif +diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c +index 0796f938c4f0..adae86c2c889 100644 +--- a/kernel/sched/cputime.c ++++ b/kernel/sched/cputime.c +@@ -265,26 +265,6 @@ static inline u64 account_other_time(u64 max) + return accounted; + } + +-#ifdef CONFIG_64BIT +-static inline u64 read_sum_exec_runtime(struct task_struct *t) +-{ +- return t->se.sum_exec_runtime; +-} +-#else +-static u64 read_sum_exec_runtime(struct task_struct *t) +-{ +- u64 ns; +- struct rq_flags rf; +- struct rq *rq; +- +- rq = task_rq_lock(t, &rf); +- ns = t->se.sum_exec_runtime; +- task_rq_unlock(rq, t, &rf); +- +- return ns; +-} +-#endif +- + /* + * Accumulate raw cputime values of dead tasks (sig->[us]time) and live + * tasks (sum on group iteration) belonging to @tsk's group. +@@ -662,7 +642,7 @@ void cputime_adjust(struct task_cputime *curr, struct prev_cputime *prev, + void task_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st) + { + struct task_cputime cputime = { +- .sum_exec_runtime = p->se.sum_exec_runtime, ++ .sum_exec_runtime = tsk_seruntime(p), + }; + + task_cputime(p, &cputime.utime, &cputime.stime); +diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c +index f5516bae0c1b..c14cd1bcdbd0 100644 +--- a/kernel/sched/idle.c ++++ b/kernel/sched/idle.c +@@ -224,6 +224,8 @@ static void cpuidle_idle_call(void) + static void do_idle(void) + { + int cpu = smp_processor_id(); ++ bool pending = false; ++ + /* + * If the arch has a polling bit, we maintain an invariant: + * +@@ -234,7 +236,10 @@ static void do_idle(void) + */ + + __current_set_polling(); +- tick_nohz_idle_enter(); ++ if (unlikely(softirq_pending(cpu))) ++ pending = true; ++ else ++ tick_nohz_idle_enter(); + + while (!need_resched()) { + check_pgt_cache(); +@@ -272,7 +277,8 @@ static void do_idle(void) + * an IPI to fold the state for us. + */ + preempt_set_need_resched(); +- tick_nohz_idle_exit(); ++ if (!pending) ++ tick_nohz_idle_exit(); + __current_clr_polling(); + + /* +@@ -353,6 +359,7 @@ void cpu_startup_entry(enum cpuhp_state state) + do_idle(); + } + ++#ifndef CONFIG_SCHED_MUQSS + /* + * idle-task scheduling class. + */ +@@ -465,3 +472,4 @@ const struct sched_class idle_sched_class = { + .switched_to = switched_to_idle, + .update_curr = update_curr_idle, + }; ++#endif /* CONFIG_SCHED_MUQSS */ +diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h +index 4e524ab589c9..7d1309c5b238 100644 +--- a/kernel/sched/sched.h ++++ b/kernel/sched/sched.h +@@ -2,6 +2,19 @@ + /* + * Scheduler internal types and methods: + */ ++#ifdef CONFIG_SCHED_MUQSS ++#include "MuQSS.h" ++ ++/* Begin compatibility wrappers for MuQSS/CFS differences */ ++#define rq_rt_nr_running(rq) ((rq)->rt_nr_running) ++#define rq_h_nr_running(rq) ((rq)->nr_running) ++ ++#else /* CONFIG_SCHED_MUQSS */ ++ ++#define rq_rt_nr_running(rq) ((rq)->rt.rt_nr_running) ++#define rq_h_nr_running(rq) ((rq)->cfs.h_nr_running) ++ ++ + #include + + #include +@@ -2262,3 +2275,30 @@ unsigned long scale_irq_capacity(unsigned long util, unsigned long irq, unsigned + return util; + } + #endif ++ ++/* MuQSS compatibility functions */ ++static inline bool softirq_pending(int cpu) ++{ ++ return false; ++} ++ ++#ifdef CONFIG_64BIT ++static inline u64 read_sum_exec_runtime(struct task_struct *t) ++{ ++ return t->se.sum_exec_runtime; ++} ++#else ++static inline u64 read_sum_exec_runtime(struct task_struct *t) ++{ ++ u64 ns; ++ struct rq_flags rf; ++ struct rq *rq; ++ ++ rq = task_rq_lock(t, &rf); ++ ns = t->se.sum_exec_runtime; ++ task_rq_unlock(rq, t, &rf); ++ ++ return ns; ++} ++#endif ++#endif /* CONFIG_SCHED_MUQSS */ +diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c +index 8d7f15ba5916..c76ebb593eea 100644 +--- a/kernel/sched/topology.c ++++ b/kernel/sched/topology.c +@@ -219,7 +219,11 @@ void rq_attach_root(struct rq *rq, struct root_domain *rd) + struct root_domain *old_rd = NULL; + unsigned long flags; + ++#ifdef CONFIG_SCHED_MUQSS ++ raw_spin_lock_irqsave(rq->lock, flags); ++#else + raw_spin_lock_irqsave(&rq->lock, flags); ++#endif + + if (rq->rd) { + old_rd = rq->rd; +@@ -245,7 +249,11 @@ void rq_attach_root(struct rq *rq, struct root_domain *rd) + if (cpumask_test_cpu(rq->cpu, cpu_active_mask)) + set_rq_online(rq); + ++#ifdef CONFIG_SCHED_MUQSS ++ raw_spin_unlock_irqrestore(rq->lock, flags); ++#else + raw_spin_unlock_irqrestore(&rq->lock, flags); ++#endif + + if (old_rd) + call_rcu_sched(&old_rd->rcu, free_rootdomain); +diff --git a/kernel/skip_list.c b/kernel/skip_list.c +new file mode 100644 +index 000000000000..bf5c6e97e139 +--- /dev/null ++++ b/kernel/skip_list.c +@@ -0,0 +1,148 @@ ++/* ++ Copyright (C) 2011,2016 Con Kolivas. ++ ++ Code based on example originally by William Pugh. ++ ++Skip Lists are a probabilistic alternative to balanced trees, as ++described in the June 1990 issue of CACM and were invented by ++William Pugh in 1987. ++ ++A couple of comments about this implementation: ++The routine randomLevel has been hard-coded to generate random ++levels using p=0.25. It can be easily changed. ++ ++The insertion routine has been implemented so as to use the ++dirty hack described in the CACM paper: if a random level is ++generated that is more than the current maximum level, the ++current maximum level plus one is used instead. ++ ++Levels start at zero and go up to MaxLevel (which is equal to ++MaxNumberOfLevels-1). ++ ++The routines defined in this file are: ++ ++init: defines slnode ++ ++new_skiplist: returns a new, empty list ++ ++randomLevel: Returns a random level based on a u64 random seed passed to it. ++In MuQSS, the "niffy" time is used for this purpose. ++ ++insert(l,key, value): inserts the binding (key, value) into l. This operation ++occurs in O(log n) time. ++ ++delnode(slnode, l, node): deletes any binding of key from the l based on the ++actual node value. This operation occurs in O(k) time where k is the ++number of levels of the node in question (max 8). The original delete ++function occurred in O(log n) time and involved a search. ++ ++MuQSS Notes: In this implementation of skiplists, there are bidirectional ++next/prev pointers and the insert function returns a pointer to the actual ++node the value is stored. The key here is chosen by the scheduler so as to ++sort tasks according to the priority list requirements and is no longer used ++by the scheduler after insertion. The scheduler lookup, however, occurs in ++O(1) time because it is always the first item in the level 0 linked list. ++Since the task struct stores a copy of the node pointer upon skiplist_insert, ++it can also remove it much faster than the original implementation with the ++aid of prev<->next pointer manipulation and no searching. ++ ++*/ ++ ++#include ++#include ++ ++#define MaxNumberOfLevels 8 ++#define MaxLevel (MaxNumberOfLevels - 1) ++ ++void skiplist_init(skiplist_node *slnode) ++{ ++ int i; ++ ++ slnode->key = 0xFFFFFFFFFFFFFFFF; ++ slnode->level = 0; ++ slnode->value = NULL; ++ for (i = 0; i < MaxNumberOfLevels; i++) ++ slnode->next[i] = slnode->prev[i] = slnode; ++} ++ ++skiplist *new_skiplist(skiplist_node *slnode) ++{ ++ skiplist *l = kzalloc(sizeof(skiplist), GFP_ATOMIC); ++ ++ BUG_ON(!l); ++ l->header = slnode; ++ return l; ++} ++ ++void free_skiplist(skiplist *l) ++{ ++ skiplist_node *p, *q; ++ ++ p = l->header; ++ do { ++ q = p->next[0]; ++ p->next[0]->prev[0] = q->prev[0]; ++ skiplist_node_init(p); ++ p = q; ++ } while (p != l->header); ++ kfree(l); ++} ++ ++void skiplist_node_init(skiplist_node *node) ++{ ++ memset(node, 0, sizeof(skiplist_node)); ++} ++ ++static inline unsigned int randomLevel(const long unsigned int randseed) ++{ ++ return find_first_bit(&randseed, MaxLevel) / 2; ++} ++ ++void skiplist_insert(skiplist *l, skiplist_node *node, keyType key, valueType value, unsigned int randseed) ++{ ++ skiplist_node *update[MaxNumberOfLevels]; ++ skiplist_node *p, *q; ++ int k = l->level; ++ ++ p = l->header; ++ do { ++ while (q = p->next[k], q->key <= key) ++ p = q; ++ update[k] = p; ++ } while (--k >= 0); ++ ++ ++l->entries; ++ k = randomLevel(randseed); ++ if (k > l->level) { ++ k = ++l->level; ++ update[k] = l->header; ++ } ++ ++ node->level = k; ++ node->key = key; ++ node->value = value; ++ do { ++ p = update[k]; ++ node->next[k] = p->next[k]; ++ p->next[k] = node; ++ node->prev[k] = p; ++ node->next[k]->prev[k] = node; ++ } while (--k >= 0); ++} ++ ++void skiplist_delete(skiplist *l, skiplist_node *node) ++{ ++ int k, m = node->level; ++ ++ for (k = 0; k <= m; k++) { ++ node->prev[k]->next[k] = node->next[k]; ++ node->next[k]->prev[k] = node->prev[k]; ++ } ++ skiplist_node_init(node); ++ if (m == l->level) { ++ while (l->header->next[m] == l->header && l->header->prev[m] == l->header && m > 0) ++ m--; ++ l->level = m; ++ } ++ l->entries--; ++} +diff --git a/kernel/sysctl.c b/kernel/sysctl.c +index 5fc724e4e454..a16902f32e6a 100644 +--- a/kernel/sysctl.c ++++ b/kernel/sysctl.c +@@ -127,9 +127,17 @@ static int __maybe_unused one __read_only = 1; + static int __maybe_unused two __read_only = 2; + static int __maybe_unused four __read_only = 4; + static unsigned long one_ul __read_only = 1; +-static int one_hundred __read_only = 100; +-static int one_thousand __read_only = 1000; +-#ifdef CONFIG_PRINTK ++static int one_hundred __read_only = 100; ++static int one_thousand __read_only = 1000; ++#ifdef CONFIG_SCHED_MUQSS ++extern int rr_interval; ++extern int sched_interactive; ++extern int sched_iso_cpu; ++extern int sched_yield_type; ++#endif ++extern int hrtimer_granularity_us; ++extern int hrtimeout_min_us; ++#if defined(CONFIG_PRINTK) || defined(CONFIG_SCHED_MUQSS) + static int ten_thousand __read_only = 10000; + #endif + #ifdef CONFIG_PERF_EVENTS +@@ -296,7 +304,7 @@ static struct ctl_table sysctl_base_table[] = { + { } + }; + +-#ifdef CONFIG_SCHED_DEBUG ++#if defined(CONFIG_SCHED_DEBUG) && !defined(CONFIG_SCHED_MUQSS) + static int min_sched_granularity_ns __read_only = 100000; /* 100 usecs */ + static int max_sched_granularity_ns __read_only = NSEC_PER_SEC; /* 1 second */ + static int min_wakeup_granularity_ns __read_only; /* 0 usecs */ +@@ -313,6 +321,7 @@ static int max_extfrag_threshold = 1000; + #endif + + static struct ctl_table kern_table[] = { ++#ifndef CONFIG_SCHED_MUQSS + { + .procname = "sched_child_runs_first", + .data = &sysctl_sched_child_runs_first, +@@ -467,6 +476,7 @@ static struct ctl_table kern_table[] = { + .extra1 = &one, + }, + #endif ++#endif /* !CONFIG_SCHED_MUQSS */ + #ifdef CONFIG_PROVE_LOCKING + { + .procname = "prove_locking", +@@ -1032,6 +1042,62 @@ static struct ctl_table kern_table[] = { + .proc_handler = proc_dointvec, + }, + #endif ++#ifdef CONFIG_SCHED_MUQSS ++ { ++ .procname = "rr_interval", ++ .data = &rr_interval, ++ .maxlen = sizeof (int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &one, ++ .extra2 = &one_thousand, ++ }, ++ { ++ .procname = "interactive", ++ .data = &sched_interactive, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &zero, ++ .extra2 = &one, ++ }, ++ { ++ .procname = "iso_cpu", ++ .data = &sched_iso_cpu, ++ .maxlen = sizeof (int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &zero, ++ .extra2 = &one_hundred, ++ }, ++ { ++ .procname = "yield_type", ++ .data = &sched_yield_type, ++ .maxlen = sizeof (int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &zero, ++ .extra2 = &two, ++ }, ++#endif ++ { ++ .procname = "hrtimer_granularity_us", ++ .data = &hrtimer_granularity_us, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &one, ++ .extra2 = &ten_thousand, ++ }, ++ { ++ .procname = "hrtimeout_min_us", ++ .data = &hrtimeout_min_us, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dointvec_minmax, ++ .extra1 = &one, ++ .extra2 = &ten_thousand, ++ }, + #if defined(CONFIG_S390) && defined(CONFIG_SMP) + { + .procname = "spin_retry", +diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c +index 8c0e4092f661..faf30b861235 100644 +--- a/kernel/time/clockevents.c ++++ b/kernel/time/clockevents.c +@@ -198,8 +198,9 @@ int clockevents_tick_resume(struct clock_event_device *dev) + + #ifdef CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST + +-/* Limit min_delta to a jiffie */ +-#define MIN_DELTA_LIMIT (NSEC_PER_SEC / HZ) ++int __read_mostly hrtimer_granularity_us = 100; ++/* Limit min_delta to 100us */ ++#define MIN_DELTA_LIMIT (hrtimer_granularity_us * NSEC_PER_USEC) + + /** + * clockevents_increase_min_delta - raise minimum delta of a clock event device +diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c +index 9cdd74bd2d27..0f7f27adf16b 100644 +--- a/kernel/time/hrtimer.c ++++ b/kernel/time/hrtimer.c +@@ -2026,3 +2026,117 @@ int __sched schedule_hrtimeout(ktime_t *expires, + return schedule_hrtimeout_range(expires, 0, mode); + } + EXPORT_SYMBOL_GPL(schedule_hrtimeout); ++ ++/* ++ * As per schedule_hrtimeout but taskes a millisecond value and returns how ++ * many milliseconds are left. ++ */ ++long __sched schedule_msec_hrtimeout(long timeout) ++{ ++ struct hrtimer_sleeper t; ++ int delta, jiffs; ++ ktime_t expires; ++ ++ if (!timeout) { ++ __set_current_state(TASK_RUNNING); ++ return 0; ++ } ++ ++ jiffs = msecs_to_jiffies(timeout); ++ /* ++ * If regular timer resolution is adequate or hrtimer resolution is not ++ * (yet) better than Hz, as would occur during startup, use regular ++ * timers. ++ */ ++ if (jiffs > 4 || hrtimer_resolution >= NSEC_PER_SEC / HZ || pm_freezing) ++ return schedule_timeout(jiffs); ++ ++ delta = (timeout % 1000) * NSEC_PER_MSEC; ++ expires = ktime_set(0, delta); ++ ++ hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ hrtimer_set_expires_range_ns(&t.timer, expires, delta); ++ ++ hrtimer_init_sleeper(&t, current); ++ ++ hrtimer_start_expires(&t.timer, HRTIMER_MODE_REL); ++ ++ if (likely(t.task)) ++ schedule(); ++ ++ hrtimer_cancel(&t.timer); ++ destroy_hrtimer_on_stack(&t.timer); ++ ++ __set_current_state(TASK_RUNNING); ++ ++ expires = hrtimer_expires_remaining(&t.timer); ++ timeout = ktime_to_ms(expires); ++ return timeout < 0 ? 0 : timeout; ++} ++ ++EXPORT_SYMBOL(schedule_msec_hrtimeout); ++ ++#define USECS_PER_SEC 1000000 ++extern int hrtimer_granularity_us; ++ ++static inline long schedule_usec_hrtimeout(long timeout) ++{ ++ struct hrtimer_sleeper t; ++ ktime_t expires; ++ int delta; ++ ++ if (!timeout) { ++ __set_current_state(TASK_RUNNING); ++ return 0; ++ } ++ ++ if (hrtimer_resolution >= NSEC_PER_SEC / HZ) ++ return schedule_timeout(usecs_to_jiffies(timeout)); ++ ++ if (timeout < hrtimer_granularity_us) ++ timeout = hrtimer_granularity_us; ++ delta = (timeout % USECS_PER_SEC) * NSEC_PER_USEC; ++ expires = ktime_set(0, delta); ++ ++ hrtimer_init_on_stack(&t.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); ++ hrtimer_set_expires_range_ns(&t.timer, expires, delta); ++ ++ hrtimer_init_sleeper(&t, current); ++ ++ hrtimer_start_expires(&t.timer, HRTIMER_MODE_REL); ++ ++ if (likely(t.task)) ++ schedule(); ++ ++ hrtimer_cancel(&t.timer); ++ destroy_hrtimer_on_stack(&t.timer); ++ ++ __set_current_state(TASK_RUNNING); ++ ++ expires = hrtimer_expires_remaining(&t.timer); ++ timeout = ktime_to_us(expires); ++ return timeout < 0 ? 0 : timeout; ++} ++ ++int __read_mostly hrtimeout_min_us = 1000; ++ ++long __sched schedule_min_hrtimeout(void) ++{ ++ return usecs_to_jiffies(schedule_usec_hrtimeout(hrtimeout_min_us)); ++} ++ ++EXPORT_SYMBOL(schedule_min_hrtimeout); ++ ++long __sched schedule_msec_hrtimeout_interruptible(long timeout) ++{ ++ __set_current_state(TASK_INTERRUPTIBLE); ++ return schedule_msec_hrtimeout(timeout); ++} ++EXPORT_SYMBOL(schedule_msec_hrtimeout_interruptible); ++ ++long __sched schedule_msec_hrtimeout_uninterruptible(long timeout) ++{ ++ __set_current_state(TASK_UNINTERRUPTIBLE); ++ return schedule_msec_hrtimeout(timeout); ++} ++EXPORT_SYMBOL(schedule_msec_hrtimeout_uninterruptible); +diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c +index 8f0644af40be..e3481bf47b94 100644 +--- a/kernel/time/posix-cpu-timers.c ++++ b/kernel/time/posix-cpu-timers.c +@@ -829,7 +829,7 @@ static void check_thread_timers(struct task_struct *tsk, + tsk_expires->virt_exp = expires; + + tsk_expires->sched_exp = check_timers_list(++timers, firing, +- tsk->se.sum_exec_runtime); ++ tsk_seruntime(tsk)); + + /* + * Check for the special case thread timers. +@@ -839,7 +839,7 @@ static void check_thread_timers(struct task_struct *tsk, + unsigned long hard = task_rlimit_max(tsk, RLIMIT_RTTIME); + + if (hard != RLIM_INFINITY && +- tsk->rt.timeout > DIV_ROUND_UP(hard, USEC_PER_SEC/HZ)) { ++ tsk_rttimeout(tsk) > DIV_ROUND_UP(hard, USEC_PER_SEC/HZ)) { + /* + * At the hard limit, we just die. + * No need to calculate anything else now. +@@ -851,7 +851,7 @@ static void check_thread_timers(struct task_struct *tsk, + __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk); + return; + } +- if (tsk->rt.timeout > DIV_ROUND_UP(soft, USEC_PER_SEC/HZ)) { ++ if (tsk_rttimeout(tsk) > DIV_ROUND_UP(soft, USEC_PER_SEC/HZ)) { + /* + * At the soft limit, send a SIGXCPU every second. + */ +@@ -1091,7 +1091,7 @@ static inline int fastpath_timer_check(struct task_struct *tsk) + struct task_cputime task_sample; + + task_cputime(tsk, &task_sample.utime, &task_sample.stime); +- task_sample.sum_exec_runtime = tsk->se.sum_exec_runtime; ++ task_sample.sum_exec_runtime = tsk_seruntime(tsk); + if (task_cputime_expired(&task_sample, &tsk->cputime_expires)) + return 1; + } +diff --git a/kernel/time/timer.c b/kernel/time/timer.c +index fa49cd753dea..d5d0fa004d2b 100644 +--- a/kernel/time/timer.c ++++ b/kernel/time/timer.c +@@ -44,6 +44,7 @@ + #include + #include + #include ++#include + + #include + #include +@@ -1479,7 +1480,7 @@ static unsigned long __next_timer_interrupt(struct timer_base *base) + * Check, if the next hrtimer event is before the next timer wheel + * event: + */ +-static u64 cmp_next_hrtimer_event(u64 basem, u64 expires) ++static u64 cmp_next_hrtimer_event(struct timer_base *base, u64 basem, u64 expires) + { + u64 nextevt = hrtimer_get_next_event(); + +@@ -1497,6 +1498,9 @@ static u64 cmp_next_hrtimer_event(u64 basem, u64 expires) + if (nextevt <= basem) + return basem; + ++ if (nextevt < expires && nextevt - basem <= TICK_NSEC) ++ base->is_idle = false; ++ + /* + * Round up to the next jiffie. High resolution timers are + * off, so the hrtimers are expired in the tick and we need to +@@ -1566,7 +1570,7 @@ u64 get_next_timer_interrupt(unsigned long basej, u64 basem) + } + raw_spin_unlock(&base->lock); + +- return cmp_next_hrtimer_event(basem, expires); ++ return cmp_next_hrtimer_event(base, basem, expires); + } + + /** +@@ -1798,6 +1802,18 @@ signed long __sched schedule_timeout(signed long timeout) + + expire = timeout + jiffies; + ++#ifdef CONFIG_HIGH_RES_TIMERS ++ if (timeout == 1 && hrtimer_resolution < NSEC_PER_SEC / HZ) { ++ /* ++ * Special case 1 as being a request for the minimum timeout ++ * and use highres timers to timeout after 1ms to workaround ++ * the granularity of low Hz tick timers. ++ */ ++ if (!schedule_min_hrtimeout()) ++ return 0; ++ goto out_timeout; ++ } ++#endif + timer.task = current; + timer_setup_on_stack(&timer.timer, process_timeout, 0); + __mod_timer(&timer.timer, expire, 0); +@@ -1806,10 +1822,10 @@ signed long __sched schedule_timeout(signed long timeout) + + /* Remove the timer from the object tracker */ + destroy_timer_on_stack(&timer.timer); +- ++out_timeout: + timeout = expire - jiffies; + +- out: ++out: + return timeout < 0 ? 0 : timeout; + } + EXPORT_SYMBOL(schedule_timeout); +@@ -1950,7 +1966,19 @@ void __init init_timers(void) + */ + void msleep(unsigned int msecs) + { +- unsigned long timeout = msecs_to_jiffies(msecs) + 1; ++ int jiffs = msecs_to_jiffies(msecs); ++ unsigned long timeout; ++ ++ /* ++ * Use high resolution timers where the resolution of tick based ++ * timers is inadequate. ++ */ ++ if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ && !pm_freezing) { ++ while (msecs) ++ msecs = schedule_msec_hrtimeout_uninterruptible(msecs); ++ return; ++ } ++ timeout = jiffs + 1; + + while (timeout) + timeout = schedule_timeout_uninterruptible(timeout); +@@ -1964,7 +1992,15 @@ EXPORT_SYMBOL(msleep); + */ + unsigned long msleep_interruptible(unsigned int msecs) + { +- unsigned long timeout = msecs_to_jiffies(msecs) + 1; ++ int jiffs = msecs_to_jiffies(msecs); ++ unsigned long timeout; ++ ++ if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ && !pm_freezing) { ++ while (msecs && !signal_pending(current)) ++ msecs = schedule_msec_hrtimeout_interruptible(msecs); ++ return msecs; ++ } ++ timeout = jiffs + 1; + + while (timeout && !signal_pending(current)) + timeout = schedule_timeout_interruptible(timeout); +diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c +index 11e9daa4a568..4c4e1d5bdf42 100644 +--- a/kernel/trace/trace_selftest.c ++++ b/kernel/trace/trace_selftest.c +@@ -1041,10 +1041,15 @@ static int trace_wakeup_test_thread(void *data) + { + /* Make this a -deadline thread */ + static const struct sched_attr attr = { ++#ifdef CONFIG_SCHED_MUQSS ++ /* No deadline on MuQSS, use RR */ ++ .sched_policy = SCHED_RR, ++#else + .sched_policy = SCHED_DEADLINE, + .sched_runtime = 100000ULL, + .sched_deadline = 10000000ULL, + .sched_period = 10000000ULL ++#endif + }; + struct wakeup_test_data *x = data; + +diff --git a/mm/vmscan.c b/mm/vmscan.c +index 62ac0c488624..f11656681f7b 100644 +--- a/mm/vmscan.c ++++ b/mm/vmscan.c +@@ -160,7 +160,7 @@ struct scan_control { + /* + * From 0 .. 100. Higher means more swappy. + */ +-int vm_swappiness = 60; ++int vm_swappiness = 33; + /* + * The total number of pages which are beyond the high watermark within all + * zones. +diff --git a/net/core/pktgen.c b/net/core/pktgen.c +index 6ac919847ce6..37bcc0bafe51 100644 +--- a/net/core/pktgen.c ++++ b/net/core/pktgen.c +@@ -1900,7 +1900,7 @@ static void pktgen_mark_device(const struct pktgen_net *pn, const char *ifname) + mutex_unlock(&pktgen_thread_lock); + pr_debug("%s: waiting for %s to disappear....\n", + __func__, ifname); +- schedule_timeout_interruptible(msecs_to_jiffies(msec_per_try)); ++ schedule_msec_hrtimeout_interruptible((msec_per_try)); + mutex_lock(&pktgen_thread_lock); + + if (++i >= max_tries) { +diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c +index 62962178a9d7..87e486740da0 100644 +--- a/sound/pci/maestro3.c ++++ b/sound/pci/maestro3.c +@@ -2016,7 +2016,7 @@ static void snd_m3_ac97_reset(struct snd_m3 *chip) + outw(0, io + GPIO_DATA); + outw(dir | GPO_PRIMARY_AC97, io + GPIO_DIRECTION); + +- schedule_timeout_uninterruptible(msecs_to_jiffies(delay1)); ++ schedule_msec_hrtimeout_uninterruptible((delay1)); + + outw(GPO_PRIMARY_AC97, io + GPIO_DATA); + udelay(5); +@@ -2024,7 +2024,7 @@ static void snd_m3_ac97_reset(struct snd_m3 *chip) + outw(IO_SRAM_ENABLE | SERIAL_AC_LINK_ENABLE, io + RING_BUS_CTRL_A); + outw(~0, io + GPIO_MASK); + +- schedule_timeout_uninterruptible(msecs_to_jiffies(delay2)); ++ schedule_msec_hrtimeout_uninterruptible((delay2)); + + if (! snd_m3_try_read_vendor(chip)) + break; +diff --git a/sound/soc/codecs/rt5631.c b/sound/soc/codecs/rt5631.c +index 865f49ac38dd..3c1190dd114f 100644 +--- a/sound/soc/codecs/rt5631.c ++++ b/sound/soc/codecs/rt5631.c +@@ -419,7 +419,7 @@ static void onebit_depop_mute_stage(struct snd_soc_component *component, int ena + hp_zc = snd_soc_component_read32(component, RT5631_INT_ST_IRQ_CTRL_2); + snd_soc_component_write(component, RT5631_INT_ST_IRQ_CTRL_2, hp_zc & 0xf7ff); + if (enable) { +- schedule_timeout_uninterruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_uninterruptible((10)); + /* config one-bit depop parameter */ + rt5631_write_index(component, RT5631_SPK_INTL_CTRL, 0x307f); + snd_soc_component_update_bits(component, RT5631_HP_OUT_VOL, +@@ -529,7 +529,7 @@ static void depop_seq_mute_stage(struct snd_soc_component *component, int enable + hp_zc = snd_soc_component_read32(component, RT5631_INT_ST_IRQ_CTRL_2); + snd_soc_component_write(component, RT5631_INT_ST_IRQ_CTRL_2, hp_zc & 0xf7ff); + if (enable) { +- schedule_timeout_uninterruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_uninterruptible((10)); + + /* config depop sequence parameter */ + rt5631_write_index(component, RT5631_SPK_INTL_CTRL, 0x302f); +diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c +index e92ebe52d485..88791ebb6df0 100644 +--- a/sound/soc/codecs/wm8350.c ++++ b/sound/soc/codecs/wm8350.c +@@ -236,10 +236,10 @@ static void wm8350_pga_work(struct work_struct *work) + out2->ramp == WM8350_RAMP_UP) { + /* delay is longer over 0dB as increases are larger */ + if (i >= WM8350_OUTn_0dB) +- schedule_timeout_interruptible(msecs_to_jiffies ++ schedule_msec_hrtimeout_interruptible( + (2)); + else +- schedule_timeout_interruptible(msecs_to_jiffies ++ schedule_msec_hrtimeout_interruptible( + (1)); + } else + udelay(50); /* doesn't matter if we delay longer */ +@@ -1123,7 +1123,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, + (platform->dis_out4 << 6)); + + /* wait for discharge */ +- schedule_timeout_interruptible(msecs_to_jiffies ++ schedule_msec_hrtimeout_interruptible( + (platform-> + cap_discharge_msecs)); + +@@ -1139,7 +1139,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, + WM8350_VBUFEN); + + /* wait for vmid */ +- schedule_timeout_interruptible(msecs_to_jiffies ++ schedule_msec_hrtimeout_interruptible( + (platform-> + vmid_charge_msecs)); + +@@ -1190,7 +1190,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, + wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1); + + /* wait */ +- schedule_timeout_interruptible(msecs_to_jiffies ++ schedule_msec_hrtimeout_interruptible( + (platform-> + vmid_discharge_msecs)); + +@@ -1208,7 +1208,7 @@ static int wm8350_set_bias_level(struct snd_soc_component *component, + pm1 | WM8350_OUTPUT_DRAIN_EN); + + /* wait */ +- schedule_timeout_interruptible(msecs_to_jiffies ++ schedule_msec_hrtimeout_interruptible( + (platform->drain_msecs)); + + pm1 &= ~WM8350_BIASEN; +diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c +index 1a14e902949d..68f17d9877ec 100644 +--- a/sound/soc/codecs/wm8900.c ++++ b/sound/soc/codecs/wm8900.c +@@ -1112,7 +1112,7 @@ static int wm8900_set_bias_level(struct snd_soc_component *component, + /* Need to let things settle before stopping the clock + * to ensure that restart works, see "Stopping the + * master clock" in the datasheet. */ +- schedule_timeout_interruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_interruptible(1); + snd_soc_component_write(component, WM8900_REG_POWER2, + WM8900_REG_POWER2_SYSCLK_ENA); + break; +diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c +index 643863bb32e0..fc318d71a8a3 100644 +--- a/sound/soc/codecs/wm9713.c ++++ b/sound/soc/codecs/wm9713.c +@@ -203,7 +203,7 @@ static int wm9713_voice_shutdown(struct snd_soc_dapm_widget *w, + + /* Gracefully shut down the voice interface. */ + snd_soc_component_update_bits(component, AC97_HANDSET_RATE, 0x0f00, 0x0200); +- schedule_timeout_interruptible(msecs_to_jiffies(1)); ++ schedule_msec_hrtimeout_interruptible(1); + snd_soc_component_update_bits(component, AC97_HANDSET_RATE, 0x0f00, 0x0f00); + snd_soc_component_update_bits(component, AC97_EXTENDED_MID, 0x1000, 0x1000); + +@@ -872,7 +872,7 @@ static int wm9713_set_pll(struct snd_soc_component *component, + wm9713->pll_in = freq_in; + + /* wait 10ms AC97 link frames for the link to stabilise */ +- schedule_timeout_interruptible(msecs_to_jiffies(10)); ++ schedule_msec_hrtimeout_interruptible((10)); + return 0; + } + +diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c +index a5178845065b..e5ac94b38742 100644 +--- a/sound/soc/soc-dapm.c ++++ b/sound/soc/soc-dapm.c +@@ -130,7 +130,7 @@ static void dapm_assert_locked(struct snd_soc_dapm_context *dapm) + static void pop_wait(u32 pop_time) + { + if (pop_time) +- schedule_timeout_uninterruptible(msecs_to_jiffies(pop_time)); ++ schedule_msec_hrtimeout_uninterruptible((pop_time)); + } + + static void pop_dbg(struct device *dev, u32 pop_time, const char *fmt, ...) +diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c +index 72c6f8e82a7e..46d8c2a148ad 100644 +--- a/sound/usb/line6/pcm.c ++++ b/sound/usb/line6/pcm.c +@@ -131,7 +131,7 @@ static void line6_wait_clear_audio_urbs(struct snd_line6_pcm *line6pcm, + if (!alive) + break; + set_current_state(TASK_UNINTERRUPTIBLE); +- schedule_timeout(1); ++ schedule_min_hrtimeout(); + } while (--timeout > 0); + if (alive) + dev_err(line6pcm->line6->ifcdev, +diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile +index c9d038f91af6..af41781c233a 100644 +--- a/tools/objtool/Makefile ++++ b/tools/objtool/Makefile +@@ -31,7 +31,7 @@ INCLUDES := -I$(srctree)/tools/include \ + -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ + -I$(srctree)/tools/objtool/arch/$(ARCH)/include + WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed +-CFLAGS += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) ++CFLAGS += $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) + LDFLAGS += -lelf $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) + + # Allow old libelf to be used: -- cgit v1.2.1