diff options
author | Harvey Harrison <harvey.harrison@gmail.com> | 2009-01-06 22:56:25 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-07 02:10:27 (GMT) |
commit | 1af84a625356768ab1f9687b70c825250123d7fd (patch) | |
tree | 9bf824eab0ccaed29b217964d4ec5d0bc715fcc8 | |
parent | 13f7877bb5aeb1d5ad01ffbf17a80fb550fa6642 (diff) | |
download | linux-fsl-qoriq-1af84a625356768ab1f9687b70c825250123d7fd.tar.xz |
sh: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r-- | arch/sh/include/asm/Kbuild | 1 | ||||
-rw-r--r-- | arch/sh/include/asm/byteorder.h | 62 | ||||
-rw-r--r-- | arch/sh/include/asm/swab.h | 60 |
3 files changed, 64 insertions, 59 deletions
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild index 43910cd..f1a2a0d 100644 --- a/arch/sh/include/asm/Kbuild +++ b/arch/sh/include/asm/Kbuild @@ -6,3 +6,4 @@ unifdef-y += unistd_32.h unifdef-y += unistd_64.h unifdef-y += posix_types_32.h unifdef-y += posix_types_64.h +unifdef-y += swab.h diff --git a/arch/sh/include/asm/byteorder.h b/arch/sh/include/asm/byteorder.h index f5fa065..e95c41a 100644 --- a/arch/sh/include/asm/byteorder.h +++ b/arch/sh/include/asm/byteorder.h @@ -1,68 +1,12 @@ #ifndef __ASM_SH_BYTEORDER_H #define __ASM_SH_BYTEORDER_H -/* - * Copyright (C) 1999 Niibe Yutaka - * Copyright (C) 2000, 2001 Paolo Alberelli - */ -#include <linux/compiler.h> -#include <linux/types.h> +#include <asm/swab.h> #ifdef __LITTLE_ENDIAN__ -# define __LITTLE_ENDIAN +#include <linux/byteorder/little_endian.h> #else -# define __BIG_ENDIAN +#include <linux/byteorder/big_endian.h> #endif -#define __SWAB_64_THRU_32__ - -static inline __attribute_const__ __u32 __arch_swab32(__u32 x) -{ - __asm__( -#ifdef __SH5__ - "byterev %0, %0\n\t" - "shari %0, 32, %0" -#else - "swap.b %0, %0\n\t" - "swap.w %0, %0\n\t" - "swap.b %0, %0" -#endif - : "=r" (x) - : "0" (x)); - - return x; -} -#define __arch_swab32 __arch_swab32 - -static inline __attribute_const__ __u16 __arch_swab16(__u16 x) -{ - __asm__( -#ifdef __SH5__ - "byterev %0, %0\n\t" - "shari %0, 32, %0" -#else - "swap.b %0, %0" -#endif - : "=r" (x) - : "0" (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 - -#include <linux/byteorder.h> - #endif /* __ASM_SH_BYTEORDER_H */ diff --git a/arch/sh/include/asm/swab.h b/arch/sh/include/asm/swab.h new file mode 100644 index 0000000..e693159 --- /dev/null +++ b/arch/sh/include/asm/swab.h @@ -0,0 +1,60 @@ +#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> + +#define __SWAB_64_THRU_32__ + +static inline __attribute_const__ __u32 __arch_swab32(__u32 x) +{ + __asm__( +#ifdef __SH5__ + "byterev %0, %0\n\t" + "shari %0, 32, %0" +#else + "swap.b %0, %0\n\t" + "swap.w %0, %0\n\t" + "swap.b %0, %0" +#endif + : "=r" (x) + : "0" (x)); + + return x; +} +#define __arch_swab32 __arch_swab32 + +static inline __attribute_const__ __u16 __arch_swab16(__u16 x) +{ + __asm__( +#ifdef __SH5__ + "byterev %0, %0\n\t" + "shari %0, 32, %0" +#else + "swap.b %0, %0" +#endif + : "=r" (x) + : "0" (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 */ |