s390: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/s390/include/asm/Kbuild

@@ -13,3 +13,4 @@ unifdef-y += cmb.h
 unifdef-y += debug.h
 unifdef-y += chpid.h
 unifdef-y += schid.h
+unifdef-y += swab.h

arch/s390/include/asm/byteorder.h

@@ -1,95 +1,7 @@
 #ifndef _S390_BYTEORDER_H
 #define _S390_BYTEORDER_H
 
-/*
+#include <asm/swab.h>
- *  include/asm-s390/byteorder.h
+#include <linux/byteorder/big_endian.h>
- *
- *  S390 version
- *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
- */
-
-#include <asm/types.h>
-
-#define __BIG_ENDIAN
-
-#ifndef __s390x__
-# define __SWAB_64_THRU_32__
-#endif
-
-#ifdef __s390x__
-static inline __u64 __arch_swab64p(const __u64 *x)
-{
-	__u64 result;
-
-	asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
-	return result;
-}
-#define __arch_swab64p __arch_swab64p
-
-static inline __u64 __arch_swab64(__u64 x)
-{
-	__u64 result;
-
-	asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
-	return result;
-}
-#define __arch_swab64 __arch_swab64
-
-static inline void __arch_swab64s(__u64 *x)
-{
-	*x = __arch_swab64p(x);
-}
-#define __arch_swab64s __arch_swab64s
-#endif /* __s390x__ */
-
-static inline __u32 __arch_swab32p(const __u32 *x)
-{
-	__u32 result;
-	
-	asm volatile(
-#ifndef __s390x__
-		"	icm	%0,8,3(%1)\n"
-		"	icm	%0,4,2(%1)\n"
-		"	icm	%0,2,1(%1)\n"
-		"	ic	%0,0(%1)"
-		: "=&d" (result) : "a" (x), "m" (*x) : "cc");
-#else /* __s390x__ */
-		"	lrv	%0,%1"
-		: "=d" (result) : "m" (*x));
-#endif /* __s390x__ */
-	return result;
-}
-#define __arch_swab32p __arch_swab32p
-
-#ifdef __s390x__
-static inline __u32 __arch_swab32(__u32 x)
-{
-	__u32 result;
-	
-	asm volatile("lrvr  %0,%1" : "=d" (result) : "d" (x));
-	return result;
-}
-#define __arch_swab32 __arch_swab32
-#endif /* __s390x__ */
-
-static inline __u16 __arch_swab16p(const __u16 *x)
-{
-	__u16 result;
-	
-	asm volatile(
-#ifndef __s390x__
-		"	icm	%0,2,1(%1)\n"
-		"	ic	%0,0(%1)\n"
-		: "=&d" (result) : "a" (x), "m" (*x) : "cc");
-#else /* __s390x__ */
-		"	lrvh	%0,%1"
-		: "=d" (result) : "m" (*x));
-#endif /* __s390x__ */
-	return result;
-}
-#define __arch_swab16p __arch_swab16p
-
-#include <linux/byteorder.h>
 
 #endif /* _S390_BYTEORDER_H */

arch/s390/include/asm/swab.h

@@ -0,0 +1,91 @@
+#ifndef _S390_SWAB_H
+#define _S390_SWAB_H
+
+/*
+ *  include/asm-s390/swab.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#include <asm/types.h>
+
+#ifndef __s390x__
+# define __SWAB_64_THRU_32__
+#endif
+
+#ifdef __s390x__
+static inline __u64 __arch_swab64p(const __u64 *x)
+{
+	__u64 result;
+
+	asm volatile("lrvg %0,%1" : "=d" (result) : "m" (*x));
+	return result;
+}
+#define __arch_swab64p __arch_swab64p
+
+static inline __u64 __arch_swab64(__u64 x)
+{
+	__u64 result;
+
+	asm volatile("lrvgr %0,%1" : "=d" (result) : "d" (x));
+	return result;
+}
+#define __arch_swab64 __arch_swab64
+
+static inline void __arch_swab64s(__u64 *x)
+{
+	*x = __arch_swab64p(x);
+}
+#define __arch_swab64s __arch_swab64s
+#endif /* __s390x__ */
+
+static inline __u32 __arch_swab32p(const __u32 *x)
+{
+	__u32 result;
+	
+	asm volatile(
+#ifndef __s390x__
+		"	icm	%0,8,3(%1)\n"
+		"	icm	%0,4,2(%1)\n"
+		"	icm	%0,2,1(%1)\n"
+		"	ic	%0,0(%1)"
+		: "=&d" (result) : "a" (x), "m" (*x) : "cc");
+#else /* __s390x__ */
+		"	lrv	%0,%1"
+		: "=d" (result) : "m" (*x));
+#endif /* __s390x__ */
+	return result;
+}
+#define __arch_swab32p __arch_swab32p
+
+#ifdef __s390x__
+static inline __u32 __arch_swab32(__u32 x)
+{
+	__u32 result;
+	
+	asm volatile("lrvr  %0,%1" : "=d" (result) : "d" (x));
+	return result;
+}
+#define __arch_swab32 __arch_swab32
+#endif /* __s390x__ */
+
+static inline __u16 __arch_swab16p(const __u16 *x)
+{
+	__u16 result;
+	
+	asm volatile(
+#ifndef __s390x__
+		"	icm	%0,2,1(%1)\n"
+		"	ic	%0,0(%1)\n"
+		: "=&d" (result) : "a" (x), "m" (*x) : "cc");
+#else /* __s390x__ */
+		"	lrvh	%0,%1"
+		: "=d" (result) : "m" (*x));
+#endif /* __s390x__ */
+	return result;
+}
+#define __arch_swab16p __arch_swab16p
+
+#endif /* _S390_SWAB_H */