/usr/mipsisa64r6el-linux-gnuabi64/include/asm/swab.h is in linux-libc-dev-mips64r6el-cross 4.15.0-18.19cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* 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/types.h>
#define __SWAB_64_THRU_32__
#if !defined(__mips16) && \
((defined(__mips_isa_rev) && (__mips_isa_rev >= 2)) || \
defined(_MIPS_ARCH_LOONGSON3A))
static __inline__ __u16 __arch_swab16(__u16 x)
{
__asm__(
" .set push \n"
" .set arch=mips32r2 \n"
" wsbh %0, %1 \n"
" .set pop \n"
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab16 __arch_swab16
static __inline__ __u32 __arch_swab32(__u32 x)
{
__asm__(
" .set push \n"
" .set arch=mips32r2 \n"
" wsbh %0, %1 \n"
" rotr %0, %0, 16 \n"
" .set pop \n"
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab32 __arch_swab32
/*
* Having already checked for MIPS R2, enable the optimized version for
* 64-bit kernel on r2 CPUs.
*/
#ifdef __mips64
static __inline__ __u64 __arch_swab64(__u64 x)
{
__asm__(
" .set push \n"
" .set arch=mips64r2 \n"
" dsbh %0, %1 \n"
" dshd %0, %0 \n"
" .set pop \n"
: "=r" (x)
: "r" (x));
return x;
}
#define __arch_swab64 __arch_swab64
#endif /* __mips64 */
#endif /* (not __mips16) and (MIPS R2 or newer or Loongson 3A) */
#endif /* _ASM_SWAB_H */
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