diff options
| author | Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> | 2022-07-14 03:12:14 -0700 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-07-15 15:41:51 +0200 |
| commit | 6f2c8d5f16594a13295d153245e0bb8166db7ac9 (patch) | |
| tree | 4f8f52fc006cd49436a6778a49fd4148207b432a /drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h | |
| parent | c96cfaf8fc02d4bb70727dfa7ce7841a3cff9be2 (diff) | |
| download | linux-6f2c8d5f16594a13295d153245e0bb8166db7ac9.tar.bz2 | |
drm/amdgpu: Fix for drm buddy memory corruption
User reported gpu page fault when running graphics applications
and in some cases garbaged graphics are observed as soon as X
starts. This patch fixes all the issues.
Fixed the typecast issue for fpfn and lpfn variables, thus
preventing the overflow problem which resolves the memory
corruption.
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reported-by: Mike Lothian <mike@fireburn.co.uk>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20220714101214.7620-1-Arunpravin.PaneerSelvam@amd.com
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h index 4b267bf1c5db..0e04e42cf809 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h @@ -50,7 +50,7 @@ static inline u64 amdgpu_vram_mgr_block_start(struct drm_buddy_block *block) static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block) { - return PAGE_SIZE << drm_buddy_block_order(block); + return (u64)PAGE_SIZE << drm_buddy_block_order(block); } static inline struct amdgpu_vram_mgr_resource * |