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drm/amdgpu: Don't move pinned BOs

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The purpose of pinning is to prevent a buffer from moving.

Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer 2016-03-28 12:53:02 +09:00 • committed by Alex Deucher
parent e1a575ada8
commit 104ece9757
2 changed files with 10 additions and 0 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
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@ -608,6 +608,10 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
if ((offset + size) <= adev->mc.visible_vram_size)
return 0;
/* Can't move a pinned BO to visible VRAM */
if (abo->pin_count > 0)
return -EINVAL;
/* hurrah the memory is not visible ! */
amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM);
lpfn = adev->mc.visible_vram_size >> PAGE_SHIFT;