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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _X86_64_BYTEORDER_H
2#define _X86_64_BYTEORDER_H
3
4#include <asm/types.h>
5#include <linux/compiler.h>
6
7#ifdef __GNUC__
8
9static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
10{
11 __asm__("bswapq %0" : "=r" (x) : "0" (x));
12 return x;
13}
14
15static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
16{
17 __asm__("bswapl %0" : "=r" (x) : "0" (x));
18 return x;
19}
20
21/* Do not define swab16. Gcc is smart enough to recognize "C" version and
22 convert it into rotation or exhange. */
23
24#define __arch__swab32(x) ___arch__swab32(x)
25#define __arch__swab64(x) ___arch__swab64(x)
26
27#endif /* __GNUC__ */
28
29#define __BYTEORDER_HAS_U64__
30
31#include <linux/byteorder/little_endian.h>
32
33#endif /* _X86_64_BYTEORDER_H */