From d791f46784859b98205808be0e08fc70eeb91d45 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Thu, 4 Nov 2021 18:01:30 +0000 Subject: [PATCH 4/8] PCI: Add MSI masking quirk for Nvidia ION AHCI The ION AHCI device pretends that MSI masking isn't a thing, while it actually implements it and needs MSIs to be unmasked to work. Add a quirk to that effect. Reported-by: Rui Salvaterra Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Tested-by: Rui Salvaterra Reviewed-by: Thomas Gleixner Cc: Bjorn Helgaas Link: https://lore.kernel.org/r/CALjTZvbzYfBuLB+H=fj2J+9=DxjQ2Uqcy0if_PvmJ-nU-qEgkg@mail.gmail.com Link: https://lore.kernel.org/r/20211104180130.3825416-3-maz@kernel.org For: https://bugs.archlinux.org/task/72734 For: https://bugs.archlinux.org/task/72777 --- drivers/pci/quirks.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 6c957124f84d..208fa03acdda 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5796,3 +5796,9 @@ static void apex_pci_fixup_class(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_CLASS_HEADER(0x1ac1, 0x089a, PCI_CLASS_NOT_DEFINED, 8, apex_pci_fixup_class); + +static void nvidia_ion_ahci_fixup(struct pci_dev *pdev) +{ + pdev->dev_flags |= PCI_DEV_FLAGS_HAS_MSI_MASKING; +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, 0x0ab8, nvidia_ion_ahci_fixup); -- 2.33.1