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1da177e4 LT |
1 | #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 | ||
9 | static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) | |
10 | { | |
11 | __asm__("bswapq %0" : "=r" (x) : "0" (x)); | |
12 | return x; | |
13 | } | |
14 | ||
15 | static __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 */ |