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authorDavid S. Miller <davem@davemloft.net>2009-01-08 11:05:59 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-08 11:05:59 -0800
commit7f46b1343f723f98634a5dcee47856b2000079ed (patch)
treeed22b6298c8dd2f687890a0d79abcd1d273b5f81 /arch/ia64/include/asm/swab.h
parentb8c31da64165b8566fc6e1c9c826f76e7b98ff02 (diff)
parent9e42d0cf5020aaf217433cad1a224745241d212a (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/ia64/include/asm/swab.h')
-rw-r--r--arch/ia64/include/asm/swab.h34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/swab.h b/arch/ia64/include/asm/swab.h
new file mode 100644
index 00000000000..6aa58b699ee
--- /dev/null
+++ b/arch/ia64/include/asm/swab.h
@@ -0,0 +1,34 @@
+#ifndef _ASM_IA64_SWAB_H
+#define _ASM_IA64_SWAB_H
+
+/*
+ * Modified 1998, 1999
+ * David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co.
+ */
+
+#include <asm/types.h>
+#include <asm/intrinsics.h>
+#include <linux/compiler.h>
+
+static __inline__ __attribute_const__ __u64 __arch_swab64(__u64 x)
+{
+ __u64 result;
+
+ result = ia64_mux1(x, ia64_mux1_rev);
+ return result;
+}
+#define __arch_swab64 __arch_swab64
+
+static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 x)
+{
+ return __arch_swab64(x) >> 32;
+}
+#define __arch_swab32 __arch_swab32
+
+static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 x)
+{
+ return __arch_swab64(x) >> 48;
+}
+#define __arch_swab16 __arch_swab16
+
+#endif /* _ASM_IA64_SWAB_H */