| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |