94 	struct uart_port sc_port;  member
463 	if (port->sc_port.state) {  in sn_receive_chars()
465 		tport = &port->sc_port.state->port;  in sn_receive_chars()
481                                 spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_receive_chars()
483                                 spin_lock_irqsave(&port->sc_port.lock, flags);  in sn_receive_chars()
509 		port->sc_port.icount.rx++;  in sn_receive_chars()
540 	if (port->sc_port.state) {  in sn_transmit_chars()
542 		xmit = &port->sc_port.state->xmit;  in sn_transmit_chars()
551 	if (uart_circ_empty(xmit) || uart_tx_stopped(&port->sc_port)) {  in sn_transmit_chars()
583 				port->sc_port.icount.tx += result;  in sn_transmit_chars()
593 		uart_write_wakeup(&port->sc_port);  in sn_transmit_chars()
596 		snp_stop_tx(&port->sc_port);	/* no-op for us */  in sn_transmit_chars()
614 	spin_lock_irqsave(&port->sc_port.lock, flags);  in sn_sal_interrupt()
621 	spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_sal_interrupt()
642 	if (!port->sc_port.irq) {  in sn_sal_timer_poll()
643 		spin_lock_irqsave(&port->sc_port.lock, flags);  in sn_sal_timer_poll()
647 		spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_sal_timer_poll()
679 	spin_lock_irqsave(&port->sc_port.lock, flags);  in sn_sal_switch_to_asynch()
705 	spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_sal_switch_to_asynch()
729 			spin_lock_irqsave(&port->sc_port.lock, flags);  in sn_sal_switch_to_interrupts()
730 			port->sc_port.irq = SGI_UART_VECTOR;  in sn_sal_switch_to_interrupts()
732 			irq_set_handler(port->sc_port.irq, handle_level_irq);  in sn_sal_switch_to_interrupts()
736 			spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_sal_switch_to_interrupts()
819 	spin_lock_init(&sal_console_port.sc_port.lock);  in sn_sal_init()
822 	sal_console_port.sc_port.membase = (char *)1;	/* just needs to be non-zero */  in sn_sal_init()
823 	sal_console_port.sc_port.type = PORT_16550A;  in sn_sal_init()
824 	sal_console_port.sc_port.fifosize = SN_SAL_MAX_CHARS;  in sn_sal_init()
825 	sal_console_port.sc_port.ops = &sn_console_ops;  in sn_sal_init()
826 	sal_console_port.sc_port.line = 0;  in sn_sal_init()
828 	if (uart_add_one_port(&sal_console_uart, &sal_console_port.sc_port) < 0) {  in sn_sal_init()
904 	if (!port->sc_port.state) {  in sn_sal_console_write()
912 	if (spin_is_locked(&port->sc_port.lock)) {  in sn_sal_console_write()
913 		int lhead = port->sc_port.state->xmit.head;  in sn_sal_console_write()
914 		int ltail = port->sc_port.state->xmit.tail;  in sn_sal_console_write()
929 			if (!spin_is_locked(&port->sc_port.lock)  in sn_sal_console_write()
932 					spin_lock_irqsave(&port->sc_port.lock,  in sn_sal_console_write()
939 				if ((lhead != port->sc_port.state->xmit.head)  in sn_sal_console_write()
941 					port->sc_port.state->xmit.tail)) {  in sn_sal_console_write()
943 						port->sc_port.state->xmit.head;  in sn_sal_console_write()
945 						port->sc_port.state->xmit.tail;  in sn_sal_console_write()
953 			spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_sal_console_write()
962 		spin_lock_irqsave(&port->sc_port.lock, flags);  in sn_sal_console_write()
964 		spin_unlock_irqrestore(&port->sc_port.lock, flags);  in sn_sal_console_write()
1029 	spin_lock_init(&sal_console_port.sc_port.lock);  in sn_serial_console_early_setup()