Commit 1bd4e4ca authored by Christian König's avatar Christian König Committed by Alex Deucher

drm/amdgpu: stop evicting busy PDs/PTs

Otherwise we won't be able to cleanly handle page faults.
Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarChunming Zhou <david1.zhou@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 56753e73
......@@ -1371,6 +1371,13 @@ static bool amdgpu_ttm_bo_eviction_valuable(struct ttm_buffer_object *bo,
struct dma_fence *f;
int i;
/* Don't evict VM page tables while they are busy, otherwise we can't
* cleanly handle page faults.
*/
if (bo->type == ttm_bo_type_kernel &&
!reservation_object_test_signaled_rcu(bo->resv, true))
return false;
/* If bo is a KFD BO, check if the bo belongs to the current process.
* If true, then return false as any KFD process needs all its BOs to
* be resident to run successfully
......
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