Commit 8cdd3a92 authored by Harvey Harrison's avatar Harvey Harrison Committed by Linus Torvalds
Browse files

mips: introduce asm/swab.h


Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 292b4d09
include include/asm-generic/Kbuild.asm
header-y += cachectl.h sgidefs.h sysmips.h
header-y += swab.h
......@@ -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 */
/*
* 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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