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authorjc_gargma <jc_gargma@iserlohn-fortress.net>2022-11-01 18:08:46 -0700
committerjc_gargma <jc_gargma@iserlohn-fortress.net>2022-11-01 18:08:46 -0700
commit790575ea74dd5d17a721bb1217b7b95d571139d0 (patch)
tree0c00120d51baf1f3afacb979e129f406d8856698 /0006-drm-amdgpu-Fix-VRAM-BO-swap-issue.patch
parentUpdated to 5.19.16 (diff)
downloadlinux-790575ea74dd5d17a721bb1217b7b95d571139d0.tar.xz
Updated to 6.0.6
Diffstat (limited to '0006-drm-amdgpu-Fix-VRAM-BO-swap-issue.patch')
-rw-r--r--0006-drm-amdgpu-Fix-VRAM-BO-swap-issue.patch68
1 files changed, 68 insertions, 0 deletions
diff --git a/0006-drm-amdgpu-Fix-VRAM-BO-swap-issue.patch b/0006-drm-amdgpu-Fix-VRAM-BO-swap-issue.patch
new file mode 100644
index 0000000..f58574f
--- /dev/null
+++ b/0006-drm-amdgpu-Fix-VRAM-BO-swap-issue.patch
@@ -0,0 +1,68 @@
+From f2712d9d94e98733953cf567f32f7755800464ae Mon Sep 17 00:00:00 2001
+From: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
+Date: Tue, 4 Oct 2022 07:33:39 -0700
+Subject: [PATCH 6/8] drm/amdgpu: Fix VRAM BO swap issue
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+DRM buddy manager allocates the contiguous memory requests in
+a single block or multiple blocks. So for the ttm move operation
+(incase of low vram memory) we should consider all the blocks to
+compute the total memory size which compared with the struct
+ttm_resource num_pages in order to verify that the blocks are
+contiguous for the eviction process.
+
+v2: Added a Fixes tag
+v3: Rewrite the code to save a bit of calculations and
+ variables (Christian)
+
+Fixes: c9cad937c0c5 ("drm/amdgpu: add drm buddy support to amdgpu")
+Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
+Reviewed-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 17 ++++++++++++-----
+ 1 file changed, 12 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+index 134575a3893c..794062ab57fc 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+@@ -424,8 +424,9 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
+ static bool amdgpu_mem_visible(struct amdgpu_device *adev,
+ struct ttm_resource *mem)
+ {
+- uint64_t mem_size = (u64)mem->num_pages << PAGE_SHIFT;
++ u64 mem_size = (u64)mem->num_pages << PAGE_SHIFT;
+ struct amdgpu_res_cursor cursor;
++ u64 end;
+
+ if (mem->mem_type == TTM_PL_SYSTEM ||
+ mem->mem_type == TTM_PL_TT)
+@@ -434,12 +435,18 @@ static bool amdgpu_mem_visible(struct amdgpu_device *adev,
+ return false;
+
+ amdgpu_res_first(mem, 0, mem_size, &cursor);
++ end = cursor.start + cursor.size;
++ while (cursor.remaining) {
++ amdgpu_res_next(&cursor, cursor.size);
+
+- /* ttm_resource_ioremap only supports contiguous memory */
+- if (cursor.size != mem_size)
+- return false;
++ /* ttm_resource_ioremap only supports contiguous memory */
++ if (end != cursor.start)
++ return false;
++
++ end = cursor.start + cursor.size;
++ }
+
+- return cursor.start + cursor.size <= adev->gmc.visible_vram_size;
++ return end <= adev->gmc.visible_vram_size;
+ }
+
+ /*
+--
+2.38.1
+