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drm/amdgpu: wait for moving fence after pinning

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commit 8ddf5b9bb4 upstream.

We actually need to wait for the moving fence after pinning
the BO to make sure that the pin is completed.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
References: https://lore.kernel.org/dri-devel/20210621151758.2347474-1-daniel.vetter@ffwll.ch/
CC: stable@kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20210622114506.106349-3-christian.koenig@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian König 2021-06-21 14:29:14 +02:00 • committed by Sasha Levin
commit 3d6c4f78ec
1 changed files with 13 additions and 1 deletions
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14
drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
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@ -238,9 +238,21 @@ static int amdgpu_dma_buf_pin(struct dma_buf_attachment *attach)
{
struct drm_gem_object *obj = attach->dmabuf->priv;
struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
int r;
/* pin buffer into GTT */
return amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
if (r)
return r;
if (bo->tbo.moving) {
r = dma_fence_wait(bo->tbo.moving, true);
if (r) {
amdgpu_bo_unpin(bo);
return r;
}
}
return 0;
}
/**