last_rptr         845 drivers/gpu/drm/radeon/radeon.h 	atomic_t		last_rptr;
last_rptr         241 drivers/gpu/drm/radeon/radeon_ring.c 	atomic_set(&ring->last_rptr, radeon_ring_get_rptr(rdev, ring));
last_rptr         257 drivers/gpu/drm/radeon/radeon_ring.c 	if (rptr != atomic_read(&ring->last_rptr)) {