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drm/amdgpu: unbind GTT only when it is bound

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Doesn't make much sense to clear the GTT when it was never filled.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2016-09-09 15:39:08 +02:00 committed by Alex Deucher
parent 9702d40dd3
commit 78ab0a38bf
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -733,6 +733,9 @@ static int amdgpu_ttm_backend_unbind(struct ttm_tt *ttm)
{
struct amdgpu_ttm_tt *gtt = (void *)ttm;
if (!amdgpu_ttm_is_bound(ttm))
return 0;
/* unbind shouldn't be done for GDS/GWS/OA in ttm_bo_clean_mm */
if (gtt->adev->gart.ready)
amdgpu_gart_unbind(gtt->adev, gtt->offset, ttm->num_pages);