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/* 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 */
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