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70 lines
1.6 KiB
70 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* arch/arm64/include/asm/xor.h |
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* |
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* Authors: Jackie Liu <[email protected]> |
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* Copyright (C) 2018,Tianjin KYLIN Information Technology Co., Ltd. |
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*/ |
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#include <linux/hardirq.h> |
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#include <asm-generic/xor.h> |
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#include <asm/hwcap.h> |
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#include <asm/neon.h> |
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#ifdef CONFIG_KERNEL_MODE_NEON |
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extern struct xor_block_template const xor_block_inner_neon; |
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static void |
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xor_neon_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) |
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{ |
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kernel_neon_begin(); |
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xor_block_inner_neon.do_2(bytes, p1, p2); |
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kernel_neon_end(); |
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} |
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static void |
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xor_neon_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, |
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unsigned long *p3) |
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{ |
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kernel_neon_begin(); |
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xor_block_inner_neon.do_3(bytes, p1, p2, p3); |
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kernel_neon_end(); |
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} |
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static void |
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xor_neon_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, |
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unsigned long *p3, unsigned long *p4) |
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{ |
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kernel_neon_begin(); |
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xor_block_inner_neon.do_4(bytes, p1, p2, p3, p4); |
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kernel_neon_end(); |
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} |
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static void |
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xor_neon_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, |
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unsigned long *p3, unsigned long *p4, unsigned long *p5) |
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{ |
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kernel_neon_begin(); |
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xor_block_inner_neon.do_5(bytes, p1, p2, p3, p4, p5); |
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kernel_neon_end(); |
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} |
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static struct xor_block_template xor_block_arm64 = { |
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.name = "arm64_neon", |
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.do_2 = xor_neon_2, |
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.do_3 = xor_neon_3, |
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.do_4 = xor_neon_4, |
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.do_5 = xor_neon_5 |
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}; |
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#undef XOR_TRY_TEMPLATES |
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#define XOR_TRY_TEMPLATES \ |
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do { \ |
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xor_speed(&xor_block_8regs); \ |
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xor_speed(&xor_block_32regs); \ |
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if (cpu_has_neon()) { \ |
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xor_speed(&xor_block_arm64);\ |
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} \ |
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} while (0) |
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#endif /* ! CONFIG_KERNEL_MODE_NEON */
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