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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm64/include/asm/xor.h
*
* Authors: Jackie Liu <[email protected]>
* Copyright (C) 2018,Tianjin KYLIN Information Technology Co., Ltd.
*/
#include <linux/hardirq.h>
#include <asm-generic/xor.h>
#include <asm/hwcap.h>
#include <asm/neon.h>
#ifdef CONFIG_KERNEL_MODE_NEON
extern struct xor_block_template const xor_block_inner_neon;
static void
xor_neon_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
{
kernel_neon_begin();
xor_block_inner_neon.do_2(bytes, p1, p2);
kernel_neon_end();
}
static void
xor_neon_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
unsigned long *p3)
{
kernel_neon_begin();
xor_block_inner_neon.do_3(bytes, p1, p2, p3);
kernel_neon_end();
}
static void
xor_neon_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
unsigned long *p3, unsigned long *p4)
{
kernel_neon_begin();
xor_block_inner_neon.do_4(bytes, p1, p2, p3, p4);
kernel_neon_end();
}
static void
xor_neon_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
unsigned long *p3, unsigned long *p4, unsigned long *p5)
{
kernel_neon_begin();
xor_block_inner_neon.do_5(bytes, p1, p2, p3, p4, p5);
kernel_neon_end();
}
static struct xor_block_template xor_block_arm64 = {
.name = "arm64_neon",
.do_2 = xor_neon_2,
.do_3 = xor_neon_3,
.do_4 = xor_neon_4,
.do_5 = xor_neon_5
};
#undef XOR_TRY_TEMPLATES
#define XOR_TRY_TEMPLATES \
do { \
xor_speed(&xor_block_8regs); \
xor_speed(&xor_block_32regs); \
if (cpu_has_neon()) { \
xor_speed(&xor_block_arm64);\
} \
} while (0)
#endif /* ! CONFIG_KERNEL_MODE_NEON */
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