204 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_tx_with_dma()  local
209 	tran_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);  in sirfsoc_uart_tx_with_dma()
210 	tran_start = (unsigned long)(xmit->buf + xmit->tail);  in sirfsoc_uart_tx_with_dma()
211 	if (uart_circ_empty(xmit) || uart_tx_stopped(port) ||  in sirfsoc_uart_tx_with_dma()
265 			xmit->buf + xmit->tail,  in sirfsoc_uart_tx_with_dma()
443 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_pio_tx_chars()  local
445 	while (!uart_circ_empty(xmit) &&  in sirfsoc_uart_pio_tx_chars()
450 				xmit->buf[xmit->tail]);  in sirfsoc_uart_pio_tx_chars()
451 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in sirfsoc_uart_pio_tx_chars()
455 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in sirfsoc_uart_pio_tx_chars()
464 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_tx_dma_complete_callback()  local
468 	xmit->tail = (xmit->tail + sirfport->transfer_size) &  in sirfsoc_uart_tx_dma_complete_callback()
471 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in sirfsoc_uart_tx_dma_complete_callback()
489 		sirfport->rx_dma_items[sirfport->rx_completed].xmit.buf, count);  in sirfsoc_uart_insert_rx_buf_to_tty()
497 	sirfport->rx_dma_items[index].xmit.tail =  in sirfsoc_rx_submit_one_dma_desc()
498 		sirfport->rx_dma_items[index].xmit.head = 0;  in sirfsoc_rx_submit_one_dma_desc()
534 	count = CIRC_CNT(sirfport->rx_dma_items[sirfport->rx_issued].xmit.head,  in sirfsoc_rx_tmo_process_tl()
535 		sirfport->rx_dma_items[sirfport->rx_issued].xmit.tail,  in sirfsoc_rx_tmo_process_tl()
579 	sirfport->rx_dma_items[sirfport->rx_issued].xmit.head =  in sirfsoc_uart_handle_rx_tmo()
626 	struct circ_buf *xmit = &port->state->xmit;  in sirfsoc_uart_isr()  local
682 			if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {  in sirfsoc_uart_isr()
688 				if ((uart_circ_empty(xmit)) &&  in sirfsoc_uart_isr()
1423 		sirfport->rx_dma_items[i].xmit.buf =  in sirfsoc_uart_probe()
1426 		if (!sirfport->rx_dma_items[i].xmit.buf) {  in sirfsoc_uart_probe()
1431 		sirfport->rx_dma_items[i].xmit.head =  in sirfsoc_uart_probe()
1432 			sirfport->rx_dma_items[i].xmit.tail = 0;  in sirfsoc_uart_probe()
1444 				sirfport->rx_dma_items[j].xmit.buf,  in sirfsoc_uart_probe()
1462 					sirfport->rx_dma_items[i].xmit.buf,  in sirfsoc_uart_remove()