diff mbox series

[07/11] drm/amdgpu: audit bo->resource usage

Message ID 20220509130951.486344-8-christian.koenig@amd.com (mailing list archive)
State New, archived
Headers show
Series [01/11] drm/radeon: switch over to ttm_bo_init_reserved | expand

Commit Message

Christian König May 9, 2022, 1:09 p.m. UTC 
Make sure we can at least move and release BOs without backing store.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c    | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 116c8d31e646..5cf3a58bc925 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1302,7 +1302,7 @@  void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
 	if (bo->base.resv == &bo->base._resv)
 		amdgpu_amdkfd_remove_fence_on_pt_pd_bos(abo);
 
-	if (bo->resource->mem_type != TTM_PL_VRAM ||
+	if (!bo->resource || bo->resource->mem_type != TTM_PL_VRAM ||
 	    !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE) ||
 	    adev->in_suspend || adev->shutdown)
 		return;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index ec26edd4f4d8..b79c93812342 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -471,7 +471,8 @@  static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
 
 	adev = amdgpu_ttm_adev(bo->bdev);
 
-	if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
+	if (!old_mem || (old_mem->mem_type == TTM_PL_SYSTEM &&
+			 bo->ttm == NULL)) {
 		ttm_bo_move_null(bo, new_mem);
 		goto out;
 	}