1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Copyright (C) 2023 WANG Xuerui <git@xen0n.name> 4 * 5 * raid6/loongarch.h 6 * 7 * Definitions common to LoongArch RAID-6 code only 8 */ 9 10#ifndef _LIB_RAID6_LOONGARCH_H 11#define _LIB_RAID6_LOONGARCH_H 12 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_LSX 24#define HWCAP_LOONGARCH_LSX (1 << 4) 25#endif 26#ifndef HWCAP_LOONGARCH_LASX 27#define HWCAP_LOONGARCH_LASX (1 << 5) 28#endif 29 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