mmUVD_SEMA_CNTL
amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
mmUVD_SEMA_CNTL), 0));