linux/include/asm-x86/byteorder_64.h
Thomas Gleixner 96a388de5d i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11 11:20:03 +02:00

34 lines
726 B
C

#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 */