162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 262306a36Sopenharmony_ci#ifndef __ASM_SH_SWAB_H 362306a36Sopenharmony_ci#define __ASM_SH_SWAB_H 462306a36Sopenharmony_ci 562306a36Sopenharmony_ci/* 662306a36Sopenharmony_ci * Copyright (C) 1999 Niibe Yutaka 762306a36Sopenharmony_ci * Copyright (C) 2000, 2001 Paolo Alberelli 862306a36Sopenharmony_ci */ 962306a36Sopenharmony_ci#include <linux/compiler.h> 1062306a36Sopenharmony_ci#include <linux/types.h> 1162306a36Sopenharmony_ci#include <asm-generic/swab.h> 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_cistatic inline __attribute_const__ __u32 __arch_swab32(__u32 x) 1462306a36Sopenharmony_ci{ 1562306a36Sopenharmony_ci __asm__( 1662306a36Sopenharmony_ci "swap.b %1, %0\n\t" 1762306a36Sopenharmony_ci "swap.w %0, %0\n\t" 1862306a36Sopenharmony_ci "swap.b %0, %0" 1962306a36Sopenharmony_ci : "=r" (x) 2062306a36Sopenharmony_ci : "r" (x)); 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci return x; 2362306a36Sopenharmony_ci} 2462306a36Sopenharmony_ci#define __arch_swab32 __arch_swab32 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_cistatic inline __attribute_const__ __u16 __arch_swab16(__u16 x) 2762306a36Sopenharmony_ci{ 2862306a36Sopenharmony_ci __asm__( 2962306a36Sopenharmony_ci "swap.b %1, %0" 3062306a36Sopenharmony_ci : "=r" (x) 3162306a36Sopenharmony_ci : "r" (x)); 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci return x; 3462306a36Sopenharmony_ci} 3562306a36Sopenharmony_ci#define __arch_swab16 __arch_swab16 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_cistatic inline __u64 __arch_swab64(__u64 val) 3862306a36Sopenharmony_ci{ 3962306a36Sopenharmony_ci union { 4062306a36Sopenharmony_ci struct { __u32 a,b; } s; 4162306a36Sopenharmony_ci __u64 u; 4262306a36Sopenharmony_ci } v, w; 4362306a36Sopenharmony_ci v.u = val; 4462306a36Sopenharmony_ci w.s.b = __arch_swab32(v.s.a); 4562306a36Sopenharmony_ci w.s.a = __arch_swab32(v.s.b); 4662306a36Sopenharmony_ci return w.u; 4762306a36Sopenharmony_ci} 4862306a36Sopenharmony_ci#define __arch_swab64 __arch_swab64 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_ci#endif /* __ASM_SH_SWAB_H */ 51