39 lines
831 B
C
39 lines
831 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
/*
|
|
* Copyright (C) 2023 WANG Xuerui <git@xen0n.name>
|
|
*
|
|
* raid6/loongarch.h
|
|
*
|
|
* Definitions common to LoongArch RAID-6 code only
|
|
*/
|
|
|
|
#ifndef _LIB_RAID6_LOONGARCH_H
|
|
#define _LIB_RAID6_LOONGARCH_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/cpu-features.h>
|
|
#include <asm/fpu.h>
|
|
|
|
#else /* for user-space testing */
|
|
|
|
#include <sys/auxv.h>
|
|
|
|
/* have to supply these defines for glibc 2.37- and musl */
|
|
#ifndef HWCAP_LOONGARCH_LSX
|
|
#define HWCAP_LOONGARCH_LSX (1 << 4)
|
|
#endif
|
|
#ifndef HWCAP_LOONGARCH_LASX
|
|
#define HWCAP_LOONGARCH_LASX (1 << 5)
|
|
#endif
|
|
|
|
#define kernel_fpu_begin()
|
|
#define kernel_fpu_end()
|
|
|
|
#define cpu_has_lsx (getauxval(AT_HWCAP) & HWCAP_LOONGARCH_LSX)
|
|
#define cpu_has_lasx (getauxval(AT_HWCAP) & HWCAP_LOONGARCH_LASX)
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _LIB_RAID6_LOONGARCH_H */
|