#ifndef _ASM_POWERPC_BYTEORDER_H #define _ASM_POWERPC_BYTEORDER_H /* * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <asm/types.h> #include <linux/compiler.h> #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; } 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__ __u32 ld_le32(const volatile __u32 *addr) { __u32 val; __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); return val; } 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__ __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; } 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__swab16(x) ___arch__swab16(x) #define __arch__swab32(x) ___arch__swab32(x) /* The same, but returns converted value from the location pointer by addr. */ #define __arch__swab16p(addr) ld_le16(addr) #define __arch__swab32p(addr) ld_le32(addr) /* The same, but do the conversion in situ, ie. put the value back to addr. */ #define __arch__swab16s(addr) st_le16(addr,*addr) #define __arch__swab32s(addr) st_le32(addr,*addr) #endif /* __KERNEL__ */ #ifndef __STRICT_ANSI__ #define __BYTEORDER_HAS_U64__ #ifndef __powerpc64__ #define __SWAB_64_THRU_32__ #endif /* __powerpc64__ */ #endif /* __STRICT_ANSI__ */ #endif /* __GNUC__ */ #include <linux/byteorder/big_endian.h> #endif /* _ASM_POWERPC_BYTEORDER_H */