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