leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/amdgpu: Fix GPU TLB update error when PAGE_SIZE > AMDGPU_PAGE_SIZE

Browse Source 
When PAGE_SIZE is larger than AMDGPU_PAGE_SIZE, the number of GPU TLB
entries which need to update in amdgpu_map_buffer() should be multiplied
by AMDGPU_GPU_PAGES_IN_CPU_PAGE (PAGE_SIZE / AMDGPU_PAGE_SIZE).

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Yi Li <liyi@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yi Li
2021-05-14 14:40:39 +08:00
committed by Alex Deucher
parent 765385ec00
commit ea46eaf26c
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@@ -231,7 +231,7 @@ static int amdgpu_ttm_map_buffer(struct ttm_buffer_object *bo,
*addr += mm_cur->start & ~PAGE_MASK;
num_dw = ALIGN(adev->mman.buffer_funcs->copy_num_dw, 8);
num_bytes = num_pages * 8;
num_bytes = num_pages * 8 * AMDGPU_GPU_PAGES_IN_CPU_PAGE;
r = amdgpu_job_alloc_with_ib(adev, num_dw * 4 + num_bytes,
AMDGPU_IB_POOL_DELAYED, &job);