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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2012 ARM Ltd.
* Author: Marc Zyngier <marc.zyngier@arm.com>
*
* Adapted for ARM and earlycon:
* Copyright (C) 2014 Linaro Ltd.
* Author: Rob Herring <robh@kernel.org>
*/
#ifndef _ARM64_SEMIHOST_H_
#define _ARM64_SEMIHOST_H_
struct uart_port;
static inline void smh_putc(struct uart_port *port, unsigned char c)
{
asm volatile("mov x1, %0\n"
"mov x0, #3\n"
"hlt 0xf000\n"
: : "r" (&c) : "x0", "x1", "memory");
}
#endif /* _ARM64_SEMIHOST_H_ */