[MIPS] asm headers' updates
Make some asm headers adjusted to the latest Linux kernel.
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
diff --git a/include/asm-mips/byteorder.h b/include/asm-mips/byteorder.h
index b9604cf..b5e685f 100644
--- a/include/asm-mips/byteorder.h
+++ b/include/asm-mips/byteorder.h
@@ -1,18 +1,62 @@
-/* $Id: byteorder.h,v 1.8 1998/11/02 09:29:32 ralf Exp $
- *
+/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) by Ralf Baechle
+ * Copyright (C) 1996, 99, 2003 by Ralf Baechle
*/
-#ifndef _MIPS_BYTEORDER_H
-#define _MIPS_BYTEORDER_H
+#ifndef _ASM_BYTEORDER_H
+#define _ASM_BYTEORDER_H
#include <asm/types.h>
#ifdef __GNUC__
+#ifdef CONFIG_CPU_MIPSR2
+
+static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)
+{
+ __asm__(
+ " wsbh %0, %1 \n"
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch__swab16(x) ___arch__swab16(x)
+
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+ __asm__(
+ " wsbh %0, %1 \n"
+ " rotr %0, %0, 16 \n"
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+#define __arch__swab32(x) ___arch__swab32(x)
+
+#ifdef CONFIG_CPU_MIPS64_R2
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+{
+ __asm__(
+ " dsbh %0, %1 \n"
+ " dshd %0, %0 \n"
+ " drotr %0, %0, 32 \n"
+ : "=r" (x)
+ : "r" (x));
+
+ return x;
+}
+
+#define __arch__swab64(x) ___arch__swab64(x)
+
+#endif /* CONFIG_CPU_MIPS64_R2 */
+
+#endif /* CONFIG_CPU_MIPSR2 */
+
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
@@ -20,12 +64,12 @@
#endif /* __GNUC__ */
-#if defined (__MIPSEB__)
+#if defined(__MIPSEB__)
# include <linux/byteorder/big_endian.h>
-#elif defined (__MIPSEL__)
+#elif defined(__MIPSEL__)
# include <linux/byteorder/little_endian.h>
#else
# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
#endif
-#endif /* _MIPS_BYTEORDER_H */
+#endif /* _ASM_BYTEORDER_H */