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| author | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:27:20 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-01-15 18:27:20 +0100 |
| commit | c0106d72b8d71696dbe9dc80e2c77d4ac63f7531 (patch) | |
| tree | ca96d2baecb0555e36219ed6968dc8e306e530ca /arch/mips/include/asm/swab.h | |
| parent | 5852973c129cf7c7e6c229abb7250673fc2a50c9 (diff) | |
| parent | eff317d0834ad1ff03f747f6bc2d76b9a9c95160 (diff) | |
| download | kernel-crypto-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.tar.gz kernel-crypto-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.tar.xz kernel-crypto-c0106d72b8d71696dbe9dc80e2c77d4ac63f7531.zip | |
Merge branch 'topic/asoc' into next/asoc
Diffstat (limited to 'arch/mips/include/asm/swab.h')
| -rw-r--r-- | arch/mips/include/asm/swab.h | 55 |
1 files changed, 55 insertions, 0 deletions
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 */ |