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author | Ingo Molnar <mingo@elte.hu> | 2008-10-24 12:48:46 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-24 12:48:46 +0200 |
commit | 8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516 (patch) | |
tree | d535f46a917e14e90deccb29ad00aac016ad18dd /include/asm-x86/byteorder.h | |
parent | 4ce72a2c063a7fa8e42a9435440ae3364115a58d (diff) | |
parent | 57f8f7b60db6f1ed2c6918ab9230c4623a9dbe37 (diff) |
Merge commit 'v2.6.28-rc1' into sched/urgent
Diffstat (limited to 'include/asm-x86/byteorder.h')
-rw-r--r-- | include/asm-x86/byteorder.h | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/include/asm-x86/byteorder.h b/include/asm-x86/byteorder.h deleted file mode 100644 index 722f27d6810..00000000000 --- a/include/asm-x86/byteorder.h +++ /dev/null @@ -1,81 +0,0 @@ -#ifndef ASM_X86__BYTEORDER_H -#define ASM_X86__BYTEORDER_H - -#include <asm/types.h> -#include <linux/compiler.h> - -#ifdef __GNUC__ - -#ifdef __i386__ - -static inline __attribute_const__ __u32 ___arch__swab32(__u32 x) -{ -#ifdef CONFIG_X86_BSWAP - asm("bswap %0" : "=r" (x) : "0" (x)); -#else - asm("xchgb %b0,%h0\n\t" /* swap lower bytes */ - "rorl $16,%0\n\t" /* swap words */ - "xchgb %b0,%h0" /* swap higher bytes */ - : "=q" (x) - : "0" (x)); -#endif - return x; -} - -static inline __attribute_const__ __u64 ___arch__swab64(__u64 val) -{ - union { - struct { - __u32 a; - __u32 b; - } s; - __u64 u; - } v; - v.u = val; -#ifdef CONFIG_X86_BSWAP - asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1" - : "=r" (v.s.a), "=r" (v.s.b) - : "0" (v.s.a), "1" (v.s.b)); -#else - v.s.a = ___arch__swab32(v.s.a); - v.s.b = ___arch__swab32(v.s.b); - asm("xchgl %0,%1" - : "=r" (v.s.a), "=r" (v.s.b) - : "0" (v.s.a), "1" (v.s.b)); -#endif - return v.u; -} - -#else /* __i386__ */ - -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; -} - -#endif - -/* Do not define swab16. Gcc is smart enough to recognize "C" version and - convert it into rotation or exhange. */ - -#define __arch__swab64(x) ___arch__swab64(x) -#define __arch__swab32(x) ___arch__swab32(x) - -#define __BYTEORDER_HAS_U64__ - -#endif /* __GNUC__ */ - -#include <linux/byteorder/little_endian.h> - -#endif /* ASM_X86__BYTEORDER_H */ |