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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright 2024 Institute of Software, CAS.
*
* raid6/rvv.h
*
* Definitions for RISC-V RAID-6 code
*/
#ifdef __KERNEL__
#include <asm/vector.h>
#else
#define kernel_vector_begin()
#define kernel_vector_end()
#include <sys/auxv.h>
#include <asm/hwcap.h>
#define has_vector() (getauxval(AT_HWCAP) & COMPAT_HWCAP_ISA_V)
#endif
#include <linux/raid/pq.h>
static int rvv_has_vector(void)
{
return has_vector();
}
#define RAID6_RVV_WRAPPER(_n) \
static void raid6_rvv ## _n ## _gen_syndrome(int disks, \
size_t bytes, void **ptrs) \
{ \
void raid6_rvv ## _n ## _gen_syndrome_real(int d, \
unsigned long b, void **p); \
kernel_vector_begin(); \
raid6_rvv ## _n ## _gen_syndrome_real(disks, \
(unsigned long)bytes, ptrs); \
kernel_vector_end(); \
} \
static void raid6_rvv ## _n ## _xor_syndrome(int disks, \
int start, int stop, \
size_t bytes, void **ptrs) \
{ \
void raid6_rvv ## _n ## _xor_syndrome_real(int d, \
int s1, int s2, \
unsigned long b, void **p); \
kernel_vector_begin(); \
raid6_rvv ## _n ## _xor_syndrome_real(disks, \
start, stop, (unsigned long)bytes, ptrs); \
kernel_vector_end(); \
} \
struct raid6_calls const raid6_rvvx ## _n = { \
raid6_rvv ## _n ## _gen_syndrome, \
raid6_rvv ## _n ## _xor_syndrome, \
rvv_has_vector, \
"rvvx" #_n, \
0 \
}
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