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 
___arch__swab64(__u64 x)9 static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
10 {
11 	__asm__("bswapq %0" : "=r" (x) : "0" (x));
12 	return x;
13 }
14 
___arch__swab32(__u32 x)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 enought 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 */
34