radeon_cp.c:	ring_start = (dev_priv->cp_ring->offset
radeon_cp.c:	dev_priv->ring.start = (u32 *)dev_priv->cp_ring->handle;
radeon_cp.c:	dev_priv->ring.end = ((u32 *)dev_priv->cp_ring->handle
radeon_cp.c:		ring->space = *ring->head - ring->tail;
radeon_cp.c:		if ( ring->space <= 0 )
radeon_cp.c:			ring->space += ring->size;
radeon_cp.c:		if ( ring->space >= n )
radeon_cp.c:	ring->space = *ring->head - ring->tail;
radeon_cp.c:	if ( ring->space == 0 )
radeon_cp.c:	if ( ring->space <= 0 )
radeon_cp.c:		ring->space += ring->size;
