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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Copyright (C) 2023 WANG Xuerui <git@xen0n.name>4 *5 * raid6/loongarch.h6 *7 * Definitions common to LoongArch RAID-6 code only8 */9 10#ifndef _LIB_RAID6_LOONGARCH_H11#define _LIB_RAID6_LOONGARCH_H12 13#ifdef __KERNEL__14 15#include <asm/cpu-features.h>16#include <asm/fpu.h>17 18#else /* for user-space testing */19 20#include <sys/auxv.h>21 22/* have to supply these defines for glibc 2.37- and musl */23#ifndef HWCAP_LOONGARCH_LSX24#define HWCAP_LOONGARCH_LSX (1 << 4)25#endif26#ifndef HWCAP_LOONGARCH_LASX27#define HWCAP_LOONGARCH_LASX (1 << 5)28#endif29 30#define kernel_fpu_begin()31#define kernel_fpu_end()32 33#define cpu_has_lsx (getauxval(AT_HWCAP) & HWCAP_LOONGARCH_LSX)34#define cpu_has_lasx (getauxval(AT_HWCAP) & HWCAP_LOONGARCH_LASX)35 36#endif /* __KERNEL__ */37 38#endif /* _LIB_RAID6_LOONGARCH_H */39