1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef __ASM_SH_SWAB_H 3*4882a593Smuzhiyun #define __ASM_SH_SWAB_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * Copyright (C) 1999 Niibe Yutaka 7*4882a593Smuzhiyun * Copyright (C) 2000, 2001 Paolo Alberelli 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun #include <linux/compiler.h> 10*4882a593Smuzhiyun #include <linux/types.h> 11*4882a593Smuzhiyun #include <asm-generic/swab.h> 12*4882a593Smuzhiyun __arch_swab32(__u32 x)13*4882a593Smuzhiyunstatic inline __attribute_const__ __u32 __arch_swab32(__u32 x) 14*4882a593Smuzhiyun { 15*4882a593Smuzhiyun __asm__( 16*4882a593Smuzhiyun "swap.b %1, %0\n\t" 17*4882a593Smuzhiyun "swap.w %0, %0\n\t" 18*4882a593Smuzhiyun "swap.b %0, %0" 19*4882a593Smuzhiyun : "=r" (x) 20*4882a593Smuzhiyun : "r" (x)); 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun return x; 23*4882a593Smuzhiyun } 24*4882a593Smuzhiyun #define __arch_swab32 __arch_swab32 25*4882a593Smuzhiyun __arch_swab16(__u16 x)26*4882a593Smuzhiyunstatic inline __attribute_const__ __u16 __arch_swab16(__u16 x) 27*4882a593Smuzhiyun { 28*4882a593Smuzhiyun __asm__( 29*4882a593Smuzhiyun "swap.b %1, %0" 30*4882a593Smuzhiyun : "=r" (x) 31*4882a593Smuzhiyun : "r" (x)); 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun return x; 34*4882a593Smuzhiyun } 35*4882a593Smuzhiyun #define __arch_swab16 __arch_swab16 36*4882a593Smuzhiyun __arch_swab64(__u64 val)37*4882a593Smuzhiyunstatic inline __u64 __arch_swab64(__u64 val) 38*4882a593Smuzhiyun { 39*4882a593Smuzhiyun union { 40*4882a593Smuzhiyun struct { __u32 a,b; } s; 41*4882a593Smuzhiyun __u64 u; 42*4882a593Smuzhiyun } v, w; 43*4882a593Smuzhiyun v.u = val; 44*4882a593Smuzhiyun w.s.b = __arch_swab32(v.s.a); 45*4882a593Smuzhiyun w.s.a = __arch_swab32(v.s.b); 46*4882a593Smuzhiyun return w.u; 47*4882a593Smuzhiyun } 48*4882a593Smuzhiyun #define __arch_swab64 __arch_swab64 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun #endif /* __ASM_SH_SWAB_H */ 51