1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
#ifndef __ASM_SH_BYTEORDER_H
#define __ASM_SH_BYTEORDER_H
/*
* Copyright (C) 1999 Niibe Yutaka
* Copyright (C) 2000, 2001 Paolo Alberelli
*/
#include <linux/compiler.h>
#include <linux/types.h>
static inline __attribute_const__ __u32 ___arch__swab32(__u32 x)
{
__asm__(
#ifdef __SH5__
"byterev %0, %0\n\t"
"shari %0, 32, %0"
#else
"swap.b %0, %0\n\t"
"swap.w %0, %0\n\t"
"swap.b %0, %0"
#endif
: "=r" (x)
: "0" (x));
return x;
}
static inline __attribute_const__ __u16 ___arch__swab16(__u16 x)
{
__asm__(
#ifdef __SH5__
"byterev %0, %0\n\t"
"shari %0, 32, %0"
#else
"swap.b %0, %0"
#endif
: "=r" (x)
: "0" (x));
return x;
}
static inline __u64 ___arch__swab64(__u64 val)
{
union {
struct { __u32 a,b; } s;
__u64 u;
} v, w;
v.u = val;
w.s.b = ___arch__swab32(v.s.a);
w.s.a = ___arch__swab32(v.s.b);
return w.u;
}
#define __arch__swab64(x) ___arch__swab64(x)
#define __arch__swab32(x) ___arch__swab32(x)
#define __arch__swab16(x) ___arch__swab16(x)
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif
#ifdef __LITTLE_ENDIAN__
#include <linux/byteorder/little_endian.h>
#else
#include <linux/byteorder/big_endian.h>
#endif
#endif /* __ASM_SH_BYTEORDER_H */
|
