482 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_fill_tx_fifo()  local
486 		BUG_ON(uart_circ_empty(xmit));  in tegra_uart_fill_tx_fifo()
492 		tegra_uart_write(tup, xmit->buf[xmit->tail], UART_TX);  in tegra_uart_fill_tx_fifo()
493 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in tegra_uart_fill_tx_fifo()
513 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_tx_dma_complete()  local
522 	xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);  in tegra_uart_tx_dma_complete()
524 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in tegra_uart_tx_dma_complete()
533 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_start_tx_dma()  local
540 	tx_phys_addr = tup->tx_dma_buf_phys + xmit->tail;  in tegra_uart_start_tx_dma()
562 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_start_next_tx()  local
567 	tail = (unsigned long)&xmit->buf[xmit->tail];  in tegra_uart_start_next_tx()
568 	count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);  in tegra_uart_start_next_tx()
584 	struct circ_buf *xmit = &u->state->xmit;  in tegra_uart_start_tx()  local
586 	if (!uart_circ_empty(xmit) && !tup->tx_in_progress)  in tegra_uart_start_tx()
609 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_stop_tx()  local
620 	xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);  in tegra_uart_stop_tx()
626 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_handle_tx_pio()  local
630 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in tegra_uart_handle_tx_pio()
1152 			tup->uport.state->xmit.buf, UART_XMIT_SIZE,  in tegra_uart_dma_channel_allocate()
1159 		dma_buf = tup->uport.state->xmit.buf;  in tegra_uart_dma_channel_allocate()