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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/byteorder.h | |
download | kernel_samsung_smdk4412-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_smdk4412-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_smdk4412-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
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 0000000..5e86c86 --- /dev/null +++ b/include/asm-x86_64/byteorder.h @@ -0,0 +1,33 @@ +#ifndef _X86_64_BYTEORDER_H +#define _X86_64_BYTEORDER_H + +#include <asm/types.h> +#include <linux/compiler.h> + +#ifdef __GNUC__ + +static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x) +{ + __asm__("bswapq %0" : "=r" (x) : "0" (x)); + return x; +} + +static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x) +{ + __asm__("bswapl %0" : "=r" (x) : "0" (x)); + return x; +} + +/* Do not define swab16. Gcc is smart enough to recognize "C" version and + convert it into rotation or exhange. */ + +#define __arch__swab32(x) ___arch__swab32(x) +#define __arch__swab64(x) ___arch__swab64(x) + +#endif /* __GNUC__ */ + +#define __BYTEORDER_HAS_U64__ + +#include <linux/byteorder/little_endian.h> + +#endif /* _X86_64_BYTEORDER_H */ |