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drm/amdgpu: stop pipelining VM PDs/PTs moves 

We are going to need this for recoverable page fault handling and it
makes shadow handling during GPU reset much more easier.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-09-11 09:30:46 +02:00 committed by Alex Deucher
parent 3e14bedc58
commit 4947b2f248
2 changed files with 6 additions and 2 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
View File

@ -1366,7 +1366,7 @@ u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
{
WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM);
WARN_ON_ONCE(!ww_mutex_is_locked(&bo->tbo.resv->lock) &&
!bo->pin_count);
!bo->pin_count && bo->tbo.type != ttm_bo_type_kernel);
WARN_ON_ONCE(bo->tbo.mem.start == AMDGPU_BO_INVALID_OFFSET);
WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_VRAM &&
!(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS));

6
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -532,7 +532,11 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
if (r)
goto error;
r = ttm_bo_pipeline_move(bo, fence, evict, new_mem);
/* Always block for VM page tables before committing the new location */
if (bo->type == ttm_bo_type_kernel)
r = ttm_bo_move_accel_cleanup(bo, fence, true, new_mem);
else
r = ttm_bo_pipeline_move(bo, fence, evict, new_mem);
dma_fence_put(fence);
return r;