From 4bebcceededa794a26827d40ab52555c2ec37deb Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Tue, 24 Apr 2018 13:54:10 +0800 Subject: [PATCH] drm/amdgpu: invalidate parent bo when shadow bo was invalidated MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Shadow BO is located on GTT and its parent (PT and PD) BO could located on VRAM. In some case, the BO on GTT could be evicted but the parent did not. This may cause the shadow BO not be put in the evict list and could not be invalidate correctly. v2: suggested by Christian Signed-off-by: Chunming Zhou Reported-by: Shaoyun Liu Reviewed-by: Junwei Zhang Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 71dcdef..8e71d39 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2252,6 +2252,10 @@ void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev, { struct amdgpu_vm_bo_base *bo_base; + /* shadow bo doesn't have bo base, its validation needs its parent */ + if (bo->parent && bo->parent->shadow == bo) + bo = bo->parent; + list_for_each_entry(bo_base, &bo->va, bo_list) { struct amdgpu_vm *vm = bo_base->vm; -- 2.7.4