PACKET3_MEM_SEMAPHORE 3633 drivers/gpu/drm/radeon/cik.c 	radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
PACKET3_MEM_SEMAPHORE 2936 drivers/gpu/drm/radeon/r600.c 	radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));