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authorThomas Gleixner <tglx@linutronix.de>2007-10-23 22:37:23 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-23 22:37:23 +0200
commitacbbbe9f5ab52da90a8edec02ec973e7f44dae81 (patch)
tree464bc5bc0358122f0d1135f6f54b58ca1a3cef84 /include/asm-x86
parentd88203d1ab225f208c3f70cf21b025f427245c79 (diff)
x86: merge byteorder_32/64.h
Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-x86')
-rw-r--r--include/asm-x86/Kbuild2
-rw-r--r--include/asm-x86/byteorder.h81
-rw-r--r--include/asm-x86/byteorder_32.h58
-rw-r--r--include/asm-x86/byteorder_64.h33
4 files changed, 70 insertions, 104 deletions
diff --git a/include/asm-x86/Kbuild b/include/asm-x86/Kbuild
index 435074af198..26b0dcda5ac 100644
--- a/include/asm-x86/Kbuild
+++ b/include/asm-x86/Kbuild
@@ -11,8 +11,6 @@ header-y += sigcontext32.h
header-y += ucontext.h
header-y += vsyscall32.h
-unifdef-y += byteorder_32.h
-unifdef-y += byteorder_64.h
unifdef-y += e820.h
unifdef-y += elf_32.h
unifdef-y += elf_64.h
diff --git a/include/asm-x86/byteorder.h b/include/asm-x86/byteorder.h
index eb14b1870ed..1f2d6d5bf20 100644
--- a/include/asm-x86/byteorder.h
+++ b/include/asm-x86/byteorder.h
@@ -1,13 +1,72 @@
-#ifdef __KERNEL__
-# ifdef CONFIG_X86_32
-# include "byteorder_32.h"
-# else
-# include "byteorder_64.h"
-# endif
+#ifndef _ASM_X86_BYTEORDER_H
+#define _ASM_X86_BYTEORDER_H
+
+#include <asm/types.h>
+#include <linux/compiler.h>
+
+#ifdef __GNUC__
+
+#ifdef __i386__
+
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+#ifdef CONFIG_X86_BSWAP
+ __asm__("bswap %0" : "=r" (x) : "0" (x));
#else
-# ifdef __i386__
-# include "byteorder_32.h"
-# else
-# include "byteorder_64.h"
-# endif
+ __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
+ "rorl $16,%0\n\t" /* swap words */
+ "xchgb %b0,%h0" /* swap higher bytes */
+ :"=q" (x)
+ : "0" (x));
#endif
+ return x;
+}
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 val)
+{
+ union {
+ struct { __u32 a,b; } s;
+ __u64 u;
+ } v;
+ v.u = val;
+#ifdef CONFIG_X86_BSWAP
+ asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
+ : "=r" (v.s.a), "=r" (v.s.b)
+ : "0" (v.s.a), "1" (v.s.b));
+#else
+ v.s.a = ___arch__swab32(v.s.a);
+ v.s.b = ___arch__swab32(v.s.b);
+ asm("xchgl %0,%1" : "=r" (v.s.a), "=r" (v.s.b) : "0" (v.s.a), "1" (v.s.b));
+#endif
+ return v.u;
+}
+
+#else /* __i386__ */
+
+static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
+{
+ __asm__("bswapq %0" : "=r" (x) : "0" (x));
+ return x;
+}
+
+static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
+{
+ __asm__("bswapl %0" : "=r" (x) : "0" (x));
+ return x;
+}
+
+#endif
+
+/* Do not define swab16. Gcc is smart enough to recognize "C" version and
+ convert it into rotation or exhange. */
+
+#define __arch__swab64(x) ___arch__swab64(x)
+#define __arch__swab32(x) ___arch__swab32(x)
+
+#define __BYTEORDER_HAS_U64__
+
+#endif /* __GNUC__ */
+
+#include <linux/byteorder/little_endian.h>
+
+#endif /* _ASM_X86_BYTEORDER_H */
diff --git a/include/asm-x86/byteorder_32.h b/include/asm-x86/byteorder_32.h
deleted file mode 100644
index a45470a8b74..00000000000
--- a/include/asm-x86/byteorder_32.h
+++ /dev/null
@@ -1,58 +0,0 @@
-#ifndef _I386_BYTEORDER_H
-#define _I386_BYTEORDER_H
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-/* For avoiding bswap on i386 */
-#ifdef __KERNEL__
-#endif
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
-#ifdef CONFIG_X86_BSWAP
- __asm__("bswap %0" : "=r" (x) : "0" (x));
-#else
- __asm__("xchgb %b0,%h0\n\t" /* swap lower bytes */
- "rorl $16,%0\n\t" /* swap words */
- "xchgb %b0,%h0" /* swap higher bytes */
- :"=q" (x)
- : "0" (x));
-#endif
- return x;
-}
-
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 val)
-{
- union {
- struct { __u32 a,b; } s;
- __u64 u;
- } v;
- v.u = val;
-#ifdef CONFIG_X86_BSWAP
- asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
- : "=r" (v.s.a), "=r" (v.s.b)
- : "0" (v.s.a), "1" (v.s.b));
-#else
- v.s.a = ___arch__swab32(v.s.a);
- v.s.b = ___arch__swab32(v.s.b);
- asm("xchgl %0,%1" : "=r" (v.s.a), "=r" (v.s.b) : "0" (v.s.a), "1" (v.s.b));
-#endif
- return v.u;
-}
-
-/* Do not define swab16. Gcc is smart enough to recognize "C" version and
- convert it into rotation or exhange. */
-
-#define __arch__swab64(x) ___arch__swab64(x)
-#define __arch__swab32(x) ___arch__swab32(x)
-
-#define __BYTEORDER_HAS_U64__
-
-#endif /* __GNUC__ */
-
-#include <linux/byteorder/little_endian.h>
-
-#endif /* _I386_BYTEORDER_H */
diff --git a/include/asm-x86/byteorder_64.h b/include/asm-x86/byteorder_64.h
deleted file mode 100644
index 5e86c868c75..00000000000
--- a/include/asm-x86/byteorder_64.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#ifndef _X86_64_BYTEORDER_H
-#define _X86_64_BYTEORDER_H
-
-#include <asm/types.h>
-#include <linux/compiler.h>
-
-#ifdef __GNUC__
-
-static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
-{
- __asm__("bswapq %0" : "=r" (x) : "0" (x));
- return x;
-}
-
-static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
-{
- __asm__("bswapl %0" : "=r" (x) : "0" (x));
- return x;
-}
-
-/* Do not define swab16. Gcc is smart enough to recognize "C" version and
- convert it into rotation or exhange. */
-
-#define __arch__swab32(x) ___arch__swab32(x)
-#define __arch__swab64(x) ___arch__swab64(x)
-
-#endif /* __GNUC__ */
-
-#define __BYTEORDER_HAS_U64__
-
-#include <linux/byteorder/little_endian.h>
-
-#endif /* _X86_64_BYTEORDER_H */