1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/lib/xor-neon.c
4 *
5 * Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
6 */
7
8#include <linux/raid/xor.h>
9#include <linux/module.h>
10
11MODULE_LICENSE("GPL");
12
13#ifndef __ARM_NEON__
14#error You should compile this file with '-march=armv7-a -mfloat-abi=softfp -mfpu=neon'
15#endif
16
17/*
18 * Pull in the reference implementations while instructing GCC (through
19 * -ftree-vectorize) to attempt to exploit implicit parallelism and emit
20 * NEON instructions. Clang does this by default at O2 so no pragma is
21 * needed.
22 */
23#ifdef CONFIG_CC_IS_GCC
24#pragma GCC optimize "tree-vectorize"
25#endif
26
27#pragma GCC diagnostic ignored "-Wunused-variable"
28#include <asm-generic/xor.h>
29
30struct xor_block_template const xor_block_neon_inner = {
31	.name	= "__inner_neon__",
32	.do_2	= xor_8regs_2,
33	.do_3	= xor_8regs_3,
34	.do_4	= xor_8regs_4,
35	.do_5	= xor_8regs_5,
36};
37EXPORT_SYMBOL(xor_block_neon_inner);
38