357 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_fill_tx_fifo()  local
361 		BUG_ON(uart_circ_empty(xmit));  in tegra_uart_fill_tx_fifo()
367 		tegra_uart_write(tup, xmit->buf[xmit->tail], UART_TX);  in tegra_uart_fill_tx_fifo()
368 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in tegra_uart_fill_tx_fifo()
388 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_tx_dma_complete()  local
397 	xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);  in tegra_uart_tx_dma_complete()
399 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in tegra_uart_tx_dma_complete()
408 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_start_tx_dma()  local
415 	tx_phys_addr = tup->tx_dma_buf_phys + xmit->tail;  in tegra_uart_start_tx_dma()
437 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_start_next_tx()  local
439 	tail = (unsigned long)&xmit->buf[xmit->tail];  in tegra_uart_start_next_tx()
440 	count = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);  in tegra_uart_start_next_tx()
456 	struct circ_buf *xmit = &u->state->xmit;  in tegra_uart_start_tx()  local
458 	if (!uart_circ_empty(xmit) && !tup->tx_in_progress)  in tegra_uart_start_tx()
481 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_stop_tx()  local
492 	xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);  in tegra_uart_stop_tx()
499 	struct circ_buf *xmit = &tup->uport.state->xmit;  in tegra_uart_handle_tx_pio()  local
503 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in tegra_uart_handle_tx_pio()
938 			tup->uport.state->xmit.buf, UART_XMIT_SIZE,  in tegra_uart_dma_channel_allocate()
940 		dma_buf = tup->uport.state->xmit.buf;  in tegra_uart_dma_channel_allocate()