1#ifndef _X86_64_BYTEORDER_H 2#define _X86_64_BYTEORDER_H 3 4#include <asm/types.h> 5 6#ifdef __GNUC__ 7 8static __inline__ __const__ __u64 ___arch__swab64(__u64 x) 9{ 10 __asm__("bswapq %0" : "=r" (x) : "0" (x)); 11 return x; 12} 13 14static __inline__ __const__ __u32 ___arch__swab32(__u32 x) 15{ 16 __asm__("bswapl %0" : "=r" (x) : "0" (x)); 17 return x; 18} 19 20/* Do not define swab16. Gcc is smart enought to recognize "C" version and 21 convert it into rotation or exhange. */ 22 23#define __arch__swab32(x) ___arch__swab32(x) 24#define __arch__swab64(x) ___arch__swab64(x) 25 26#endif /* __GNUC__ */ 27 28#define __BYTEORDER_HAS_U64__ 29 30#include <linux/byteorder/little_endian.h> 31 32#endif /* _X86_64_BYTEORDER_H */ 33