diff options
author | Becky Bruce <bgill@freescale.com> | 2005-09-27 14:28:56 -0500 |
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committer | Paul Mackerras <paulus@samba.org> | 2005-09-28 15:42:53 +1000 |
commit | a559c91d77c3220be521453bd23815e1e1980a82 (patch) | |
tree | 01191109d74ccfac274d443e1cd129b7bd650d7c /include/asm-ppc64 | |
parent | 6b67f62cf655c80147435544a2f8f6f57e07ec87 (diff) | |
download | op-kernel-dev-a559c91d77c3220be521453bd23815e1e1980a82.zip op-kernel-dev-a559c91d77c3220be521453bd23815e1e1980a82.tar.gz |
[PATCH] powerpc: merge byteorder.h
powerpc: Merge byteorder.h
Essentially adopts the 64-bit version of this file. The 32-bit version had
been using unsigned ints for arguments/return values that were actually
only 16 bits - the new file uses __u16 for these items as in the 64-bit
version of the header. The order of some of the asm constraints
in the 64-bit version was slightly different than the 32-bit version,
but they produce identical code.
Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-ppc64')
-rw-r--r-- | include/asm-ppc64/byteorder.h | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/include/asm-ppc64/byteorder.h b/include/asm-ppc64/byteorder.h deleted file mode 100644 index 8b57da6..0000000 --- a/include/asm-ppc64/byteorder.h +++ /dev/null @@ -1,86 +0,0 @@ -#ifndef _PPC64_BYTEORDER_H -#define _PPC64_BYTEORDER_H - -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <asm/types.h> -#include <linux/compiler.h> - -#ifdef __GNUC__ -#ifdef __KERNEL__ - -static __inline__ __u16 ld_le16(const volatile __u16 *addr) -{ - __u16 val; - - __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); - return val; -} - -static __inline__ void st_le16(volatile __u16 *addr, const __u16 val) -{ - __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); -} - -static __inline__ __u32 ld_le32(const volatile __u32 *addr) -{ - __u32 val; - - __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); - return val; -} - -static __inline__ void st_le32(volatile __u32 *addr, const __u32 val) -{ - __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); -} - -static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 value) -{ - __u16 result; - - __asm__("rlwimi %0,%1,8,16,23" - : "=r" (result) - : "r" (value), "0" (value >> 8)); - return result; -} - -static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 value) -{ - __u32 result; - - __asm__("rlwimi %0,%1,24,16,23\n\t" - "rlwimi %0,%1,8,8,15\n\t" - "rlwimi %0,%1,24,0,7" - : "=r" (result) - : "r" (value), "0" (value >> 24)); - return result; -} - -#define __arch__swab16(x) ___arch__swab16(x) -#define __arch__swab32(x) ___arch__swab32(x) - -/* The same, but returns converted value from the location pointer by addr. */ -#define __arch__swab16p(addr) ld_le16(addr) -#define __arch__swab32p(addr) ld_le32(addr) - -/* The same, but do the conversion in situ, ie. put the value back to addr. */ -#define __arch__swab16s(addr) st_le16(addr,*addr) -#define __arch__swab32s(addr) st_le32(addr,*addr) - -#endif /* __KERNEL__ */ - -#ifndef __STRICT_ANSI__ -#define __BYTEORDER_HAS_U64__ -#endif - -#endif /* __GNUC__ */ - -#include <linux/byteorder/big_endian.h> - -#endif /* _PPC64_BYTEORDER_H */ |