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authorPaul Mackerras <paulus@samba.org>2009-04-22 13:02:09 +1000
committerPaul Mackerras <paulus@samba.org>2009-04-22 13:02:09 +1000
commit5bd3ef84d73c2ea7b4babbad060909753c4828d4 (patch)
treefdf2bafb48ae1ed03175f6c77a7548a181e69ee9 /arch/mn10300/include/asm/swab.h
parent0658c16056660886ea2f35c4f038be70a94b1532 (diff)
parent6d25b688ecc488753af3c9e6f6a9a575b863cf37 (diff)
downloadblackbird-op-linux-5bd3ef84d73c2ea7b4babbad060909753c4828d4.tar.gz
blackbird-op-linux-5bd3ef84d73c2ea7b4babbad060909753c4828d4.zip
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6 into merge
Diffstat (limited to 'arch/mn10300/include/asm/swab.h')
-rw-r--r--arch/mn10300/include/asm/swab.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/mn10300/include/asm/swab.h b/arch/mn10300/include/asm/swab.h
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+++ b/arch/mn10300/include/asm/swab.h
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+/* MN10300 Byte-order primitive construction
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef _ASM_SWAB_H
+#define _ASM_SWAB_H
+
+#include <linux/types.h>
+
+#ifdef __GNUC__
+
+static inline __attribute__((const))
+__u32 __arch_swab32(__u32 x)
+{
+ __u32 ret;
+ asm("swap %1,%0" : "=r" (ret) : "r" (x));
+ return ret;
+}
+#define __arch_swab32 __arch_swab32
+
+static inline __attribute__((const))
+__u16 __arch_swab16(__u16 x)
+{
+ __u16 ret;
+ asm("swaph %1,%0" : "=r" (ret) : "r" (x));
+ return ret;
+}
+#define __arch_swab32 __arch_swab32
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+# define __SWAB_64_THRU_32__
+#endif
+
+#endif /* __GNUC__ */
+
+#endif /* _ASM_SWAB_H */
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