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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-01-08 16:24:38 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-01-08 16:24:38 +1100
commit24f030175d30f019be41766cdf88c2ff03de19ff (patch)
tree354232a84e82d5a721ed7b1a9af580ff2a59be8f /arch/ia64/include/asm/swab.h
parent4aa12f7b927c3cac0e0cf3503642597527d0ece0 (diff)
parent9e42d0cf5020aaf217433cad1a224745241d212a (diff)
Merge commit 'origin/master' into next
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 000000000000..6aa58b699eea
--- /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 */