| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * Copyright (C) 2023 WANG Xuerui <git@xen0n.name> |
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| 4 | * |
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| 5 | * raid6/loongarch.h |
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| 6 | * |
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| 7 | * Definitions common to LoongArch RAID-6 code only |
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| 8 | */ |
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| 9 | |
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| 10 | #ifndef _LIB_RAID6_LOONGARCH_H |
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| 11 | #define _LIB_RAID6_LOONGARCH_H |
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| 12 | |
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| 13 | #ifdef __KERNEL__ |
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| 14 | |
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| 15 | #include <asm/cpu-features.h> |
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| 16 | #include <asm/fpu.h> |
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| 17 | |
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| 18 | #else /* for user-space testing */ |
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| 19 | |
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| 20 | #include <sys/auxv.h> |
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| 21 | |
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| 22 | /* have to supply these defines for glibc 2.37- and musl */ |
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| 23 | #ifndef HWCAP_LOONGARCH_LSX |
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| 24 | #define HWCAP_LOONGARCH_LSX (1 << 4) |
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| 25 | #endif |
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| 26 | #ifndef HWCAP_LOONGARCH_LASX |
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| 27 | #define HWCAP_LOONGARCH_LASX (1 << 5) |
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| 28 | #endif |
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| 29 | |
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| 30 | #define kernel_fpu_begin() |
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| 31 | #define kernel_fpu_end() |
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| 32 | |
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| 33 | #define cpu_has_lsx (getauxval(AT_HWCAP) & HWCAP_LOONGARCH_LSX) |
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| 34 | #define cpu_has_lasx (getauxval(AT_HWCAP) & HWCAP_LOONGARCH_LASX) |
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| 35 | |
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| 36 | #endif /* __KERNEL__ */ |
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| 37 | |
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| 38 | #endif /* _LIB_RAID6_LOONGARCH_H */ |
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| 39 | |
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