| /* 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 */ |
