mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-27 07:20:52 +07:00
77 lines
1.5 KiB
C
77 lines
1.5 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_BYTEORDER_H
|
|
#define _ASM_BYTEORDER_H
|
|
|
|
#include <linux/compiler.h>
|
|
#include <asm/types.h>
|
|
|
|
#ifdef __GNUC__
|
|
|
|
#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(x) ___arch__swab16(x)
|
|
|
|
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(x) ___arch__swab32(x)
|
|
|
|
#ifdef CONFIG_CPU_MIPS64_R2
|
|
|
|
static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
|
|
{
|
|
__asm__(
|
|
" dsbh %0, %1 \n"
|
|
" dshd %0, %0 \n"
|
|
" drotr %0, %0, 32 \n"
|
|
: "=r" (x)
|
|
: "r" (x));
|
|
|
|
return x;
|
|
}
|
|
|
|
#define __arch__swab64(x) ___arch__swab64(x)
|
|
|
|
#endif /* CONFIG_CPU_MIPS64_R2 */
|
|
|
|
#endif /* CONFIG_CPU_MIPSR2 */
|
|
|
|
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
|
|
# define __BYTEORDER_HAS_U64__
|
|
# define __SWAB_64_THRU_32__
|
|
#endif
|
|
|
|
#endif /* __GNUC__ */
|
|
|
|
#if defined(__MIPSEB__)
|
|
# include <linux/byteorder/big_endian.h>
|
|
#elif defined(__MIPSEL__)
|
|
# include <linux/byteorder/little_endian.h>
|
|
#else
|
|
# error "MIPS, but neither __MIPSEB__, nor __MIPSEL__???"
|
|
#endif
|
|
|
|
#endif /* _ASM_BYTEORDER_H */
|