1 /****************************************************************************
2 ****************************************************************************
3 ***
4 *** This header was automatically generated from a Linux kernel header
5 *** of the same name, to make information necessary for userspace to
6 *** call into the kernel available to libc. It contains only constants,
7 *** structures, and macros generated from the original header, and thus,
8 *** contains no copyrightable information.
9 ***
10 ****************************************************************************
11 ****************************************************************************/
12 #ifndef __ASM_SH_BYTEORDER_H
13 #define __ASM_SH_BYTEORDER_H
14
15 #include <linux/compiler.h>
16 #include <linux/types.h>
17
___arch__swab32(__u32 x)18 static inline __attribute_const__ __u32 ___arch__swab32(__u32 x)
19 {
20 __asm__(
21 #ifdef __SH5__
22 "byterev %0, %0\n\t"
23 "shari %0, 32, %0"
24 #else
25 "swap.b %0, %0\n\t"
26 "swap.w %0, %0\n\t"
27 "swap.b %0, %0"
28 #endif
29 : "=r" (x)
30 : "0" (x));
31
32 return x;
33 }
34
___arch__swab16(__u16 x)35 static inline __attribute_const__ __u16 ___arch__swab16(__u16 x)
36 {
37 __asm__(
38 #ifdef __SH5__
39 "byterev %0, %0\n\t"
40 "shari %0, 32, %0"
41 #else
42 "swap.b %0, %0"
43 #endif
44 : "=r" (x)
45 : "0" (x));
46
47 return x;
48 }
49
___arch__swab64(__u64 val)50 static inline __u64 ___arch__swab64(__u64 val)
51 {
52 union {
53 struct { __u32 a,b; } s;
54 __u64 u;
55 } v, w;
56 v.u = val;
57 w.s.b = ___arch__swab32(v.s.a);
58 w.s.a = ___arch__swab32(v.s.b);
59 return w.u;
60 }
61
62 #define __arch__swab64(x) ___arch__swab64(x)
63 #define __arch__swab32(x) ___arch__swab32(x)
64 #define __arch__swab16(x) ___arch__swab16(x)
65
66 #ifndef __STRICT_ANSI__
67 #define __BYTEORDER_HAS_U64__
68 #define __SWAB_64_THRU_32__
69 #endif
70
71 #ifdef __LITTLE_ENDIAN__
72 #include <linux/byteorder/little_endian.h>
73 #else
74 #include <linux/byteorder/big_endian.h>
75 #endif
76
77 #endif
78