/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __ASM_SH_SWAB_H
#define __ASM_SH_SWAB_H

/*
 * Copyright (C) 1999  Niibe Yutaka
 * Copyright (C) 2000, 2001  Paolo Alberelli
 */
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm-generic/swab.h>

static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
{
        __asm__(
                "swap.b         %1, %0\n\t"
                "swap.w         %0, %0\n\t"
                "swap.b         %0, %0"
                : "=r" (x)
                : "r" (x));

        return x;
}
#define __arch_swab32 __arch_swab32

static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
{
        __asm__(
                "swap.b         %1, %0"
                : "=r" (x)
                :  "r" (x));

        return x;
}
#define __arch_swab16 __arch_swab16

static inline __u64 __arch_swab64(__u64 val)
{
        union {
                struct { __u32 a,b; } s;
                __u64 u;
        } v, w;
        v.u = val;
        w.s.b = __arch_swab32(v.s.a);
        w.s.a = __arch_swab32(v.s.b);
        return w.u;
}
#define __arch_swab64 __arch_swab64

#endif /* __ASM_SH_SWAB_H */