diff options
| author | Harvey Harrison <harvey.harrison@gmail.com> | 2009-01-06 14:56:23 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-06 18:10:27 -0800 |
| commit | 8cdd3a9261e8efe36aeb6c708edb76d7e2b5d13f (patch) | |
| tree | e988371e5370b60605101eec01425d1b42ae9d19 /arch/mips | |
| parent | 292b4d0978e3bbb087a83ce77e389c7b462a093c (diff) | |
mips: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/mips/include/asm/byteorder.h | 52 | ||||
| -rw-r--r-- | arch/mips/include/asm/swab.h | 55 |
3 files changed, 59 insertions, 49 deletions
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild index 7897f05e316..023866c0c10 100644 --- a/arch/mips/include/asm/Kbuild +++ b/arch/mips/include/asm/Kbuild @@ -1,3 +1,4 @@ include include/asm-generic/Kbuild.asm header-y += cachectl.h sgidefs.h sysmips.h +header-y += swab.h diff --git a/arch/mips/include/asm/byteorder.h b/arch/mips/include/asm/byteorder.h index 33790b9e0cc..607b7183070 100644 --- a/arch/mips/include/asm/byteorder.h +++ b/arch/mips/include/asm/byteorder.h @@ -8,60 +8,14 @@ #ifndef _ASM_BYTEORDER_H #define _ASM_BYTEORDER_H -#include <linux/compiler.h> -#include <asm/types.h> +#include <asm/swab.h> #if defined(__MIPSEB__) -# define __BIG_ENDIAN +#include <linux/byteorder/big_endian.h> #elif defined(__MIPSEL__) -# define __LITTLE_ENDIAN +#include <linux/byteorder/little_endian.h> #else # error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???" #endif -#define __SWAB_64_THRU_32__ - -#ifdef CONFIG_CPU_MIPSR2 - -static inline __attribute_const__ __u16 __arch_swab16(__u16 x) -{ - __asm__( - " wsbh %0, %1 \n" - : "=r" (x) - : "r" (x)); - - return x; -} -#define __arch_swab16 __arch_swab16 - -static inline __attribute_const__ __u32 __arch_swab32(__u32 x) -{ - __asm__( - " wsbh %0, %1 \n" - " rotr %0, %0, 16 \n" - : "=r" (x) - : "r" (x)); - - return x; -} -#define __arch_swab32 __arch_swab32 - -#ifdef CONFIG_CPU_MIPS64_R2 -static inline __attribute_const__ __u64 __arch_swab64(__u64 x) -{ - __asm__( - " dsbh %0, %1\n" - " dshd %0, %0" - : "=r" (x) - : "r" (x)); - - return x; -} -#define __arch_swab64 __arch_swab64 -#endif /* CONFIG_CPU_MIPS64_R2 */ - -#endif /* CONFIG_CPU_MIPSR2 */ - -#include <linux/byteorder.h> - #endif /* _ASM_BYTEORDER_H */ diff --git a/arch/mips/include/asm/swab.h b/arch/mips/include/asm/swab.h new file mode 100644 index 00000000000..88f1f7d555c --- /dev/null +++ b/arch/mips/include/asm/swab.h @@ -0,0 +1,55 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1996, 99, 2003 by Ralf Baechle + */ +#ifndef _ASM_SWAB_H +#define _ASM_SWAB_H + +#include <linux/compiler.h> +#include <asm/types.h> + +#define __SWAB_64_THRU_32__ + +#ifdef CONFIG_CPU_MIPSR2 + +static inline __attribute_const__ __u16 __arch_swab16(__u16 x) +{ + __asm__( + " wsbh %0, %1 \n" + : "=r" (x) + : "r" (x)); + + return x; +} +#define __arch_swab16 __arch_swab16 + +static inline __attribute_const__ __u32 __arch_swab32(__u32 x) +{ + __asm__( + " wsbh %0, %1 \n" + " rotr %0, %0, 16 \n" + : "=r" (x) + : "r" (x)); + + return x; +} +#define __arch_swab32 __arch_swab32 + +#ifdef CONFIG_CPU_MIPS64_R2 +static inline __attribute_const__ __u64 __arch_swab64(__u64 x) +{ + __asm__( + " dsbh %0, %1\n" + " dshd %0, %0" + : "=r" (x) + : "r" (x)); + + return x; +} +#define __arch_swab64 __arch_swab64 +#endif /* CONFIG_CPU_MIPS64_R2 */ +#endif /* CONFIG_CPU_MIPSR2 */ +#endif /* _ASM_SWAB_H */ |