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
11 MODULE_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
30 struct 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 };
37 EXPORT_SYMBOL(xor_block_neon_inner);
38
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