From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/sh/include/uapi/asm/swab.h | 59 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 arch/sh/include/uapi/asm/swab.h (limited to 'arch/sh/include/uapi/asm/swab.h') diff --git a/arch/sh/include/uapi/asm/swab.h b/arch/sh/include/uapi/asm/swab.h new file mode 100644 index 00000000..1cd09767 --- /dev/null +++ b/arch/sh/include/uapi/asm/swab.h @@ -0,0 +1,59 @@ +#ifndef __ASM_SH_SWAB_H +#define __ASM_SH_SWAB_H + +/* + * Copyright (C) 1999 Niibe Yutaka + * Copyright (C) 2000, 2001 Paolo Alberelli + */ +#include +#include +#include + +static inline __attribute_const__ __u32 __arch_swab32(__u32 x) +{ + __asm__( +#ifdef __SH5__ + "byterev %1, %0\n\t" + "shari %0, 32, %0" +#else + "swap.b %1, %0\n\t" + "swap.w %0, %0\n\t" + "swap.b %0, %0" +#endif + : "=r" (x) + : "r" (x)); + + return x; +} +#define __arch_swab32 __arch_swab32 + +static inline __attribute_const__ __u16 __arch_swab16(__u16 x) +{ + __asm__( +#ifdef __SH5__ + "byterev %1, %0\n\t" + "shari %0, 32, %0" +#else + "swap.b %1, %0" +#endif + : "=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 */ -- cgit v1.3.1