PACKETJ_TYPE6
ib->ptr[i] = PACKETJ(0, 0, 0, PACKETJ_TYPE6);
amdgpu_ring_write(ring, PACKETJ(0, 0, 0, PACKETJ_TYPE6));
ring->ring[ptr++] = PACKETJ(0, 0, 0, PACKETJ_TYPE6);