From 156ca2bbf6503a02d7d6829886ce381d572de66e Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Tue, 6 Jan 2009 14:56:23 -0800 Subject: powerpc: introduce asm/swab.h Signed-off-by: Harvey Harrison Signed-off-by: Linus Torvalds --- arch/powerpc/include/asm/byteorder.h | 83 +----------------------------------- 1 file changed, 2 insertions(+), 81 deletions(-) (limited to 'arch/powerpc/include/asm/byteorder.h') diff --git a/arch/powerpc/include/asm/byteorder.h b/arch/powerpc/include/asm/byteorder.h index d5de325472e..5cca27a4153 100644 --- a/arch/powerpc/include/asm/byteorder.h +++ b/arch/powerpc/include/asm/byteorder.h @@ -8,86 +8,7 @@ * 2 of the License, or (at your option) any later version. */ -#include -#include - -#define __BIG_ENDIAN - -#ifdef __GNUC__ -#ifdef __KERNEL__ - -static __inline__ __u16 ld_le16(const volatile __u16 *addr) -{ - __u16 val; - - __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); - return val; -} -#define __arch_swab16p ld_le16 - -static __inline__ void st_le16(volatile __u16 *addr, const __u16 val) -{ - __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); -} - -static inline void __arch_swab16s(__u16 *addr) -{ - st_le16(addr, *addr); -} -#define __arch_swab16s __arch_swab16s - -static __inline__ __u32 ld_le32(const volatile __u32 *addr) -{ - __u32 val; - - __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); - return val; -} -#define __arch_swab32p ld_le32 - -static __inline__ void st_le32(volatile __u32 *addr, const __u32 val) -{ - __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); -} - -static inline void __arch_swab32s(__u32 *addr) -{ - st_le32(addr, *addr); -} -#define __arch_swab32s __arch_swab32s - -static inline __attribute_const__ __u16 __arch_swab16(__u16 value) -{ - __u16 result; - - __asm__("rlwimi %0,%1,8,16,23" - : "=r" (result) - : "r" (value), "0" (value >> 8)); - return result; -} -#define __arch_swab16 __arch_swab16 - -static inline __attribute_const__ __u32 __arch_swab32(__u32 value) -{ - __u32 result; - - __asm__("rlwimi %0,%1,24,16,23\n\t" - "rlwimi %0,%1,8,8,15\n\t" - "rlwimi %0,%1,24,0,7" - : "=r" (result) - : "r" (value), "0" (value >> 24)); - return result; -} -#define __arch_swab32 __arch_swab32 - -#endif /* __KERNEL__ */ - -#ifndef __powerpc64__ -#define __SWAB_64_THRU_32__ -#endif /* __powerpc64__ */ - -#endif /* __GNUC__ */ - -#include +#include +#include #endif /* _ASM_POWERPC_BYTEORDER_H */ -- cgit v1.2.3