227 	u32 tail;  in ipc_protocol_ul_td_send()  local
234 	/* Get head and tail of the td list and calculate  in ipc_protocol_ul_td_send()
238 	tail = pipe->old_tail;  in ipc_protocol_ul_td_send()
241 		if (head < tail)  in ipc_protocol_ul_td_send()
242 			free_elements = tail - head - 1;  in ipc_protocol_ul_td_send()
245 				pipe->nr_of_entries - head + ((s32)tail - 1);  in ipc_protocol_ul_td_send()
293 /* Checks for Tail pointer update from CP and returns the data as SKB. */
330 	u32 tail;  in ipc_protocol_dl_td_prepare()  local
332 	/* Get head and tail of the td list and calculate  in ipc_protocol_dl_td_prepare()
336 	tail = le32_to_cpu(ipc_protocol->p_ap_shm->tail_array[pipe->pipe_nr]);  in ipc_protocol_dl_td_prepare()
342 	if (new_head == tail)  in ipc_protocol_dl_td_prepare()
435 				      u32 *tail)  in ipc_protocol_get_head_tail_index()  argument
442 	if (tail)  in ipc_protocol_get_head_tail_index()
443 		*tail = le32_to_cpu(ipc_ap_shm->tail_array[pipe->pipe_nr]);  in ipc_protocol_get_head_tail_index()
452 	u32 tail;  in ipc_protocol_pipe_cleanup()  local
456 	tail = pipe->old_tail;  in ipc_protocol_pipe_cleanup()
458 	/* Reset tail and head to 0. */  in ipc_protocol_pipe_cleanup()
464 		while (head != tail) {  in ipc_protocol_pipe_cleanup()
468 			skb = pipe->skbr_start[tail];  in ipc_protocol_pipe_cleanup()
472 			tail++;  in ipc_protocol_pipe_cleanup()
473 			if (tail >= pipe->nr_of_entries)  in ipc_protocol_pipe_cleanup()
474 				tail = 0;  in ipc_protocol_pipe_cleanup()