[PATCH v2 2/3] drm/amdgpu: Add tlb_cb for unlocked update

[Philip Yang]

Flush TLB needs wait for GPU update fence done. MMU notify callback to
unmap range from GPUs uses unlocked GPU page table update, so add tlb_cb
to unlocked update fence to increase vm->tlb_seq.

Signed-off-by: Philip Yang <philip.y...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 48f326609976..683b08f756ed 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -927,7 +927,7 @@ int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
 
        r = vm->update_funcs->commit(&params, fence);
 
-       if (!unlocked && (!(flags & AMDGPU_PTE_VALID) || params.table_freed)) {
+       if (!(flags & AMDGPU_PTE_VALID) || params.table_freed) {
                tlb_cb->vm = vm;
                if (!fence || !*fence ||
                    dma_fence_add_callback(*fence, &tlb_cb->cb,
-- 
2.35.1