62 			(seg->next == ring->first_seg));  in last_trb_on_last_seg()
93 	union xhci_trb *next;  in inc_enq()  local
96 	next = ++(ring->enqueue);  in inc_enq()
102 	while (last_trb(ctrl, ring, ring->enq_seg, next)) {  in inc_enq()
121 			next->link.control &= cpu_to_le32(~TRB_CHAIN);  in inc_enq()
122 			next->link.control |= cpu_to_le32(chain);  in inc_enq()
124 			next->link.control ^= cpu_to_le32(TRB_CYCLE);  in inc_enq()
125 			xhci_flush_cache((uintptr_t)next,  in inc_enq()
130 					ring->enq_seg, next))  in inc_enq()
133 		ring->enq_seg = ring->enq_seg->next;  in inc_enq()
135 		next = ring->enqueue;  in inc_enq()
161 			ring->deq_seg = ring->deq_seg->next;  in inc_deq()
213 	union xhci_trb *next = ep_ring->enqueue;  in prepare_ring()  local
238 	while (last_trb(ctrl, ep_ring, ep_ring->enq_seg, next)) {  in prepare_ring()
243 		next->link.control &= cpu_to_le32(~TRB_CHAIN);  in prepare_ring()
245 		next->link.control ^= cpu_to_le32(TRB_CYCLE);  in prepare_ring()
247 		xhci_flush_cache((uintptr_t)next, sizeof(union xhci_trb));  in prepare_ring()
251 					ep_ring->enq_seg, next))  in prepare_ring()
253 		ep_ring->enq_seg = ep_ring->enq_seg->next;  in prepare_ring()
255 		next = ep_ring->enqueue;  in prepare_ring()