Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * linux/arch/arm/lib/xor-neon.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/raid/xor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #ifndef __ARM_NEON__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #error You should compile this file with '-march=armv7-a -mfloat-abi=softfp -mfpu=neon'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * Pull in the reference implementations while instructing GCC (through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * -ftree-vectorize) to attempt to exploit implicit parallelism and emit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * NEON instructions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #pragma GCC optimize "tree-vectorize"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  * While older versions of GCC do not generate incorrect code, they fail to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * recognize the parallel nature of these functions, and emit plain ARM code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  * which is known to be slower than the optimized ARM code in asm-arm/xor.h.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #warning This code requires at least version 4.6 of GCC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #pragma GCC diagnostic ignored "-Wunused-variable"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <asm-generic/xor.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct xor_block_template const xor_block_neon_inner = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	.name	= "__inner_neon__",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	.do_2	= xor_8regs_2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	.do_3	= xor_8regs_3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	.do_4	= xor_8regs_4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	.do_5	= xor_8regs_5,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) EXPORT_SYMBOL(xor_block_neon_inner);