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authorHarvey Harrison <harvey.harrison@gmail.com>2009-01-06 17:56:24 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 21:10:27 -0500
commit13f7877bb5aeb1d5ad01ffbf17a80fb550fa6642 (patch)
treeb119569264084c4d49a2884c2ea72832bff162e6 /arch/s390
parent156ca2bbf6503a02d7d6829886ce381d572de66e (diff)
s390: introduce asm/swab.h
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/Kbuild1
-rw-r--r--arch/s390/include/asm/byteorder.h92
-rw-r--r--arch/s390/include/asm/swab.h91
3 files changed, 94 insertions, 90 deletions
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 63a23415fba6..f2af4167bd5f 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -13,3 +13,4 @@ unifdef-y += cmb.h
13unifdef-y += debug.h 13unifdef-y += debug.h
14unifdef-y += chpid.h 14unifdef-y += chpid.h
15unifdef-y += schid.h 15unifdef-y += schid.h
16unifdef-y += swab.h
diff --git a/arch/s390/include/asm/byteorder.h b/arch/s390/include/asm/byteorder.h
index 8bcf277c8468..b95a2b2933fb 100644
--- a/arch/s390/include/asm/byteorder.h
+++ b/arch/s390/include/asm/byteorder.h
@@ -1,95 +1,7 @@
1#ifndef _S390_BYTEORDER_H 1#ifndef _S390_BYTEORDER_H
2#define _S390_BYTEORDER_H 2#define _S390_BYTEORDER_H
3 3
4/* 4#include <asm/swab.h>
5 * include/asm-s390/byteorder.h 5#include <linux/byteorder/big_endian.h>
6 *
7 * S390 version
8 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
9 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
10 */
11
12#include <asm/types.h>
13
14#define __BIG_ENDIAN
15
16#ifndef __s390x__
17# define __SWAB_64_THRU_32__
18#endif
19
20#ifdef __s390x__
21static inline __u64 __arch_swab64p(const __u64 *x)
22{
23 __u64 result;
24
25 asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
26 return result;
27}
28#define __arch_swab64p __arch_swab64p
29
30static inline __u64 __arch_swab64(__u64 x)
31{
32 __u64 result;
33
34 asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
35 return result;
36}
37#define __arch_swab64 __arch_swab64
38
39static inline void __arch_swab64s(__u64 *x)
40{
41 *x = __arch_swab64p(x);
42}
43#define __arch_swab64s __arch_swab64s
44#endif /* __s390x__ */
45
46static inline __u32 __arch_swab32p(const __u32 *x)
47{
48 __u32 result;
49
50 asm volatile(
51#ifndef __s390x__
52 " icm %0,8,3(%1)\n"
53 " icm %0,4,2(%1)\n"
54 " icm %0,2,1(%1)\n"
55 " ic %0,0(%1)"
56 : "=&d" (result) : "a" (x), "m" (*x) : "cc");
57#else /* __s390x__ */
58 " lrv %0,%1"
59 : "=d" (result) : "m" (*x));
60#endif /* __s390x__ */
61 return result;
62}
63#define __arch_swab32p __arch_swab32p
64
65#ifdef __s390x__
66static inline __u32 __arch_swab32(__u32 x)
67{
68 __u32 result;
69
70 asm volatile("lrvr %0,%1" : "=d" (result) : "d" (x));
71 return result;
72}
73#define __arch_swab32 __arch_swab32
74#endif /* __s390x__ */
75
76static inline __u16 __arch_swab16p(const __u16 *x)
77{
78 __u16 result;
79
80 asm volatile(
81#ifndef __s390x__
82 " icm %0,2,1(%1)\n"
83 " ic %0,0(%1)\n"
84 : "=&d" (result) : "a" (x), "m" (*x) : "cc");
85#else /* __s390x__ */
86 " lrvh %0,%1"
87 : "=d" (result) : "m" (*x));
88#endif /* __s390x__ */
89 return result;
90}
91#define __arch_swab16p __arch_swab16p
92
93#include <linux/byteorder.h>
94 6
95#endif /* _S390_BYTEORDER_H */ 7#endif /* _S390_BYTEORDER_H */
diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h
new file mode 100644
index 000000000000..bd9321aa55a9
--- /dev/null
+++ b/arch/s390/include/asm/swab.h
@@ -0,0 +1,91 @@
1#ifndef _S390_SWAB_H
2#define _S390_SWAB_H
3
4/*
5 * include/asm-s390/swab.h
6 *
7 * S390 version
8 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
9 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
10 */
11
12#include <asm/types.h>
13
14#ifndef __s390x__
15# define __SWAB_64_THRU_32__
16#endif
17
18#ifdef __s390x__
19static inline __u64 __arch_swab64p(const __u64 *x)
20{
21 __u64 result;
22
23 asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
24 return result;
25}
26#define __arch_swab64p __arch_swab64p
27
28static inline __u64 __arch_swab64(__u64 x)
29{
30 __u64 result;
31
32 asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
33 return result;
34}
35#define __arch_swab64 __arch_swab64
36
37static inline void __arch_swab64s(__u64 *x)
38{
39 *x = __arch_swab64p(x);
40}
41#define __arch_swab64s __arch_swab64s
42#endif /* __s390x__ */
43
44static inline __u32 __arch_swab32p(const __u32 *x)
45{
46 __u32 result;
47
48 asm volatile(
49#ifndef __s390x__
50 " icm %0,8,3(%1)\n"
51 " icm %0,4,2(%1)\n"
52 " icm %0,2,1(%1)\n"
53 " ic %0,0(%1)"
54 : "=&d" (result) : "a" (x), "m" (*x) : "cc");
55#else /* __s390x__ */
56 " lrv %0,%1"
57 : "=d" (result) : "m" (*x));
58#endif /* __s390x__ */
59 return result;
60}
61#define __arch_swab32p __arch_swab32p
62
63#ifdef __s390x__
64static inline __u32 __arch_swab32(__u32 x)
65{
66 __u32 result;
67
68 asm volatile("lrvr %0,%1" : "=d" (result) : "d" (x));
69 return result;
70}
71#define __arch_swab32 __arch_swab32
72#endif /* __s390x__ */
73
74static inline __u16 __arch_swab16p(const __u16 *x)
75{
76 __u16 result;
77
78 asm volatile(
79#ifndef __s390x__
80 " icm %0,2,1(%1)\n"
81 " ic %0,0(%1)\n"
82 : "=&d" (result) : "a" (x), "m" (*x) : "cc");
83#else /* __s390x__ */
84 " lrvh %0,%1"
85 : "=d" (result) : "m" (*x));
86#endif /* __s390x__ */
87 return result;
88}
89#define __arch_swab16p __arch_swab16p
90
91#endif /* _S390_SWAB_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-11 20:24:10 -0500