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yaml
---
r: 126877
b: refs/heads/master
c: 8cdd3a9
h: refs/heads/master
i:
  126875: c004d85
v: v3
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Harvey Harrison authored and Linus Torvalds committed Jan 7, 2009
1 parent 906701f commit 4533b23
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Showing 4 changed files with 60 additions and 50 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 292b4d0978e3bbb087a83ce77e389c7b462a093c
refs/heads/master: 8cdd3a9261e8efe36aeb6c708edb76d7e2b5d13f
1 change: 1 addition & 0 deletions trunk/arch/mips/include/asm/Kbuild
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@@ -1,3 +1,4 @@
include include/asm-generic/Kbuild.asm

header-y += cachectl.h sgidefs.h sysmips.h
header-y += swab.h
52 changes: 3 additions & 49 deletions trunk/arch/mips/include/asm/byteorder.h
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Expand Up @@ -8,60 +8,14 @@
#ifndef _ASM_BYTEORDER_H
#define _ASM_BYTEORDER_H

#include <linux/compiler.h>
#include <asm/types.h>
#include <asm/swab.h>

#if defined(__MIPSEB__)
# define __BIG_ENDIAN
#include <linux/byteorder/big_endian.h>
#elif defined(__MIPSEL__)
# define __LITTLE_ENDIAN
#include <linux/byteorder/little_endian.h>
#else
# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
#endif

#define __SWAB_64_THRU_32__

#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 __arch_swab16

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 __arch_swab32

#ifdef CONFIG_CPU_MIPS64_R2
static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
{
__asm__(
" dsbh %0, %1\n"
" dshd %0, %0"
: "=r" (x)
: "r" (x));

return x;
}
#define __arch_swab64 __arch_swab64
#endif /* CONFIG_CPU_MIPS64_R2 */

#endif /* CONFIG_CPU_MIPSR2 */

#include <linux/byteorder.h>

#endif /* _ASM_BYTEORDER_H */
55 changes: 55 additions & 0 deletions trunk/arch/mips/include/asm/swab.h
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@@ -0,0 +1,55 @@
/*
* 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) 1996, 99, 2003 by Ralf Baechle
*/
#ifndef _ASM_SWAB_H
#define _ASM_SWAB_H

#include <linux/compiler.h>
#include <asm/types.h>

#define __SWAB_64_THRU_32__

#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 __arch_swab16

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 __arch_swab32

#ifdef CONFIG_CPU_MIPS64_R2
static inline __attribute_const__ __u64 __arch_swab64(__u64 x)
{
__asm__(
" dsbh %0, %1\n"
" dshd %0, %0"
: "=r" (x)
: "r" (x));

return x;
}
#define __arch_swab64 __arch_swab64
#endif /* CONFIG_CPU_MIPS64_R2 */
#endif /* CONFIG_CPU_MIPSR2 */
#endif /* _ASM_SWAB_H */

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