56 lines
1 KiB
C
56 lines
1 KiB
C
|
/*
|
||
|
|
* 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 */
|