232 		if ( *dev_priv->ring.head == dev_priv->ring.tail ) {  in r128_do_cce_idle()
258 		    dev_priv->cce_mode | dev_priv->ring.size_l2qw );  in r128_do_cce_start()
273 	*dev_priv->ring.head = 0;  in r128_do_cce_reset()
274 	dev_priv->ring.tail = 0;  in r128_do_cce_reset()
346 	*dev_priv->ring.head = 0;  in r128_cce_init_ring_buffer()
493 	dev_priv->ring.head = ((__volatile__ u32 *)  in r128_do_init_cce()
496 	dev_priv->ring.start = (u32 *)dev_priv->cce_ring->handle;  in r128_do_init_cce()
497 	dev_priv->ring.end = ((u32 *)dev_priv->cce_ring->handle  in r128_do_init_cce()
499 	dev_priv->ring.size = init->ring_size;  in r128_do_init_cce()
500 	dev_priv->ring.size_l2qw = drm_order( init->ring_size / 8 );  in r128_do_init_cce()
502 	dev_priv->ring.tail_mask =  in r128_do_init_cce()
503 		(dev_priv->ring.size / sizeof(u32)) - 1;  in r128_do_init_cce()
810 	drm_r128_ring_buffer_t *ring = &dev_priv->ring;  in r128_wait_ring()  local
814 		ring->space = *ring->head - ring->tail;  in r128_wait_ring()
815 		if ( ring->space <= 0 )  in r128_wait_ring()
816 			ring->space += ring->size;  in r128_wait_ring()
818 		if ( ring->space >= n )  in r128_wait_ring()
829 	drm_r128_ring_buffer_t *ring = &dev_priv->ring;  in r128_update_ring_snapshot()  local
831 	ring->space = *ring->head - ring->tail;  in r128_update_ring_snapshot()
833 	if ( ring->space == 0 )  in r128_update_ring_snapshot()
836 	if ( ring->space <= 0 )  in r128_update_ring_snapshot()
837 		ring->space += ring->size;  in r128_update_ring_snapshot()