X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-mips%2Fbyteorder.h;h=aefc02f16fd84319c3cdd46ced02e60569edc8e5;hb=675055bfb5f99be56a20a6a214439adf23591786;hp=584f8128fffdb580f9973a72590c09c48c59c0cc;hpb=65b78722ce2a2dc76108b467f79b2c5b4864af82;p=linux-2.6-omap-h63xx.git

diff --git a/include/asm-mips/byteorder.h b/include/asm-mips/byteorder.h
index 584f8128fff..aefc02f16fd 100644
--- a/include/asm-mips/byteorder.h
+++ b/include/asm-mips/byteorder.h
@@ -39,6 +39,24 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 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__)