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