[S390] arch_setup_additional_pages arguments
[linux-2.6] / arch / sh / include / asm / byteorder.h
1 #ifndef __ASM_SH_BYTEORDER_H
2 #define __ASM_SH_BYTEORDER_H
3
4 /*
5  * Copyright (C) 1999  Niibe Yutaka
6  * Copyright (C) 2000, 2001  Paolo Alberelli
7  */
8 #include <linux/compiler.h>
9 #include <linux/types.h>
10
11 #ifdef __LITTLE_ENDIAN__
12 # define __LITTLE_ENDIAN
13 #else
14 # define __BIG_ENDIAN
15 #endif
16
17 #define __SWAB_64_THRU_32__
18
19 static inline __attribute_const__ __u32 __arch_swab32(__u32 x)
20 {
21         __asm__(
22 #ifdef __SH5__
23                 "byterev        %0, %0\n\t"
24                 "shari          %0, 32, %0"
25 #else
26                 "swap.b         %0, %0\n\t"
27                 "swap.w         %0, %0\n\t"
28                 "swap.b         %0, %0"
29 #endif
30                 : "=r" (x)
31                 : "0" (x));
32
33         return x;
34 }
35 #define __arch_swab32 __arch_swab32
36
37 static inline __attribute_const__ __u16 __arch_swab16(__u16 x)
38 {
39         __asm__(
40 #ifdef __SH5__
41                 "byterev        %0, %0\n\t"
42                 "shari          %0, 32, %0"
43 #else
44                 "swap.b         %0, %0"
45 #endif
46                 : "=r" (x)
47                 :  "0" (x));
48
49         return x;
50 }
51 #define __arch_swab16 __arch_swab16
52
53 static inline __u64 __arch_swab64(__u64 val)
54 {
55         union {
56                 struct { __u32 a,b; } s;
57                 __u64 u;
58         } v, w;
59         v.u = val;
60         w.s.b = __arch_swab32(v.s.a);
61         w.s.a = __arch_swab32(v.s.b);
62         return w.u;
63 }
64 #define __arch_swab64 __arch_swab64
65
66 #include <linux/byteorder.h>
67
68 #endif /* __ASM_SH_BYTEORDER_H */