Merge branch 'sh/nommu' into sh-latest

1 files changed, 54 insertions, 0 deletions

diff --git a/arch/c6x/include/asm/swab.h b/arch/c6x/include/asm/swab.h
new file mode 100644
index 00000000000..fd4bb0520e5
--- /dev/null
+++ b/arch/c6x/include/asm/swab.h
@@ -0,0 +1,54 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SWAB_H
+#define _ASM_C6X_SWAB_H
+
+static inline __attribute_const__ __u16 __c6x_swab16(__u16 val)
+{
+	asm("swap4 .l1 %0,%0\n" : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u32 __c6x_swab32(__u32 val)
+{
+	asm("swap4 .l1 %0,%0\n"
+	    "swap2 .l1 %0,%0\n"
+	    : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u64 __c6x_swab64(__u64 val)
+{
+	asm("   swap2 .s1 %p0,%P0\n"
+	    "|| swap2 .l1 %P0,%p0\n"
+	    "   swap4 .l1 %p0,%p0\n"
+	    "   swap4 .l1 %P0,%P0\n"
+	    : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u32 __c6x_swahw32(__u32 val)
+{
+	asm("swap2 .l1 %0,%0\n" : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u32 __c6x_swahb32(__u32 val)
+{
+	asm("swap4 .l1 %0,%0\n" : "+a"(val));
+	return val;
+}
+
+#define __arch_swab16 __c6x_swab16
+#define __arch_swab32 __c6x_swab32
+#define __arch_swab64 __c6x_swab64
+#define __arch_swahw32 __c6x_swahw32
+#define __arch_swahb32 __c6x_swahb32
+
+#endif /* _ASM_C6X_SWAB_H */