/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_SWAB_H
#define _ASM_X86_SWAB_H

#include <linux/types.h>


#if !defined(__KERNEL__) && !defined(RAP_SAFE_ASM)
#define RAP_SAFE_ASM
#endif

static __always_inline  __u32 __arch_swab32(__u32 val)
{
    __asm__(RAP_SAFE_ASM "bswapl %0" : "=r" (val) : "0" (val));
    return val;
}
#define __arch_swab32 __arch_swab32

static __always_inline  __u64 __arch_swab64(__u64 val)
{
#ifdef __i386__
    union {
        struct {
            __u32 a;
            __u32 b;
        } s;
        __u64 u;
    } v;
    v.u = val;
    __asm__(RAP_SAFE_ASM "bswapl %0 ; bswapl %1 ; xchgl %0,%1"
        : "=r" (v.s.a), "=r" (v.s.b)
        : "0" (v.s.a), "1" (v.s.b));
    return v.u;
#else /* __i386__ */
    __asm__(RAP_SAFE_ASM "bswapq %0" : "=r" (val) : "0" (val));
    return val;
#endif
}
#define __arch_swab64 __arch_swab64

#endif /* _ASM_X86_SWAB_H */