diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/byteorder.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-x86_64/byteorder.h')
-rw-r--r-- | include/asm-x86_64/byteorder.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-x86_64/byteorder.h b/include/asm-x86_64/byteorder.h new file mode 100644 index 000000000000..5e86c868c75e --- /dev/null +++ b/include/asm-x86_64/byteorder.h | |||
@@ -0,0 +1,33 @@ | |||
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 */ | ||