453 	    uart_circ_empty(&uap->port.state->xmit)) {  in pl011_dma_tx_callback()
483 	struct circ_buf *xmit = &uap->port.state->xmit;  in pl011_dma_tx_refill()  local
492 	count = uart_circ_chars_pending(xmit);  in pl011_dma_tx_refill()
508 	if (xmit->tail < xmit->head)  in pl011_dma_tx_refill()
509 		memcpy(&dmatx->buf[0], &xmit->buf[xmit->tail], count);  in pl011_dma_tx_refill()
511 		size_t first = UART_XMIT_SIZE - xmit->tail;  in pl011_dma_tx_refill()
518 		memcpy(&dmatx->buf[0], &xmit->buf[xmit->tail], first);  in pl011_dma_tx_refill()
520 			memcpy(&dmatx->buf[first], &xmit->buf[0], second);  in pl011_dma_tx_refill()
562 	xmit->tail = (xmit->tail + count) & (UART_XMIT_SIZE - 1);  in pl011_dma_tx_refill()
565 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in pl011_dma_tx_refill()
1277 	struct circ_buf *xmit = &uap->port.state->xmit;  in pl011_tx_chars()  local
1286 	if (uart_circ_empty(xmit) || uart_tx_stopped(&uap->port)) {  in pl011_tx_chars()
1299 		if (!pl011_tx_char(uap, xmit->buf[xmit->tail], from_irq))  in pl011_tx_chars()
1302 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);  in pl011_tx_chars()
1303 	} while (!uart_circ_empty(xmit));  in pl011_tx_chars()
1305 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)  in pl011_tx_chars()
1308 	if (uart_circ_empty(xmit))  in pl011_tx_chars()