Commit 9563e1ec authored by Philip Yang's avatar Philip Yang Committed by Alex Deucher
Browse files

drm/amdgpu: Correct unlocked update fence handling 



To fix two issues with unlocked update fence:

1. vm->last_unlocked store the latest fence without taking refcount.
2. amdgpu_vm_bo_update_mapping returns old fence, not the latest fence.

Signed-off-by: default avatarPhilip Yang <Philip.Yang@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3222a811

drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c

+1 −1
Original line number Diff line number Diff line
@@ -109,7 +109,7 @@ static int amdgpu_vm_sdma_commit(struct amdgpu_vm_update_params *p, 
	if (p->unlocked) {

		struct dma_fence *tmp = dma_fence_get(f);



		swap(p->vm->last_unlocked, f);

		swap(p->vm->last_unlocked, tmp);

		dma_fence_put(tmp);

	} else {

		amdgpu_bo_fence(p->vm->root.bo, f, true);