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authorHarvey Harrison <harvey.harrison@gmail.com>2009-01-06 17:56:34 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 21:10:29 -0500
commit5cbd04ae36fcb8fd1f38c71dacbbe59f3166f074 (patch)
tree906fc16e7341526dc232fea1021d2154d5ed74ea /include/asm-mn10300
parent919594765dcf803017b2227425c1b27b5ea537be (diff)
mn10300: 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 'include/asm-mn10300')
-rw-r--r--include/asm-mn10300/Kbuild1
-rw-r--r--include/asm-mn10300/byteorder.h41
-rw-r--r--include/asm-mn10300/swab.h42
3 files changed, 44 insertions, 40 deletions
diff --git a/include/asm-mn10300/Kbuild b/include/asm-mn10300/Kbuild
index c68e1680da01..27b108a86b39 100644
--- a/include/asm-mn10300/Kbuild
+++ b/include/asm-mn10300/Kbuild
@@ -1 +1,2 @@
1include include/asm-generic/Kbuild.asm 1include include/asm-generic/Kbuild.asm
2unifdef-y += swab.h
diff --git a/include/asm-mn10300/byteorder.h b/include/asm-mn10300/byteorder.h
index 3c993cc625f8..45b18ded19e6 100644
--- a/include/asm-mn10300/byteorder.h
+++ b/include/asm-mn10300/byteorder.h
@@ -1,46 +1,7 @@
1/* MN10300 Byte-order primitive construction
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_BYTEORDER_H 1#ifndef _ASM_BYTEORDER_H
12#define _ASM_BYTEORDER_H 2#define _ASM_BYTEORDER_H
13 3
14#include <asm/types.h> 4#include <asm/swab.h>
15
16#ifdef __GNUC__
17
18static inline __attribute__((const))
19__u32 ___arch__swab32(__u32 x)
20{
21 __u32 ret;
22 asm("swap %1,%0" : "=r" (ret) : "r" (x));
23 return ret;
24}
25
26static inline __attribute__((const))
27__u16 ___arch__swab16(__u16 x)
28{
29 __u16 ret;
30 asm("swaph %1,%0" : "=r" (ret) : "r" (x));
31 return ret;
32}
33
34#define __arch__swab32(x) ___arch__swab32(x)
35#define __arch__swab16(x) ___arch__swab16(x)
36
37#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
38# define __BYTEORDER_HAS_U64__
39# define __SWAB_64_THRU_32__
40#endif
41
42#endif /* __GNUC__ */
43
44#include <linux/byteorder/little_endian.h> 5#include <linux/byteorder/little_endian.h>
45 6
46#endif /* _ASM_BYTEORDER_H */ 7#endif /* _ASM_BYTEORDER_H */
diff --git a/include/asm-mn10300/swab.h b/include/asm-mn10300/swab.h
new file mode 100644
index 000000000000..4504d1b4b477
--- /dev/null
+++ b/include/asm-mn10300/swab.h
@@ -0,0 +1,42 @@
1/* MN10300 Byte-order primitive construction
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_SWAB_H
12#define _ASM_SWAB_H
13
14#include <asm/types.h>
15
16#ifdef __GNUC__
17
18static inline __attribute__((const))
19__u32 __arch_swab32(__u32 x)
20{
21 __u32 ret;
22 asm("swap %1,%0" : "=r" (ret) : "r" (x));
23 return ret;
24}
25#define __arch_swab32 __arch_swab32
26
27static inline __attribute__((const))
28__u16 __arch_swab16(__u16 x)
29{
30 __u16 ret;
31 asm("swaph %1,%0" : "=r" (ret) : "r" (x));
32 return ret;
33}
34#define __arch_swab32 __arch_swab32
35
36#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
37# define __SWAB_64_THRU_32__
38#endif
39
40#endif /* __GNUC__ */
41
42#endif /* _ASM_SWAB_H */