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 | |