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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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528282630c
In order to speed up aegis128 processing even more, duplicate the init() and final() routines as SIMD versions in their entirety. This results in a 2x speedup on ARM Cortex-A57 for ~1500 byte packets (using AES instructions). Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2019 Linaro Ltd <ard.biesheuvel@linaro.org>
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*/
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#include <asm/cpufeature.h>
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#include <asm/neon.h>
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#include "aegis.h"
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void crypto_aegis128_init_neon(void *state, const void *key, const void *iv);
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void crypto_aegis128_update_neon(void *state, const void *msg);
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void crypto_aegis128_encrypt_chunk_neon(void *state, void *dst, const void *src,
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unsigned int size);
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void crypto_aegis128_decrypt_chunk_neon(void *state, void *dst, const void *src,
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unsigned int size);
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void crypto_aegis128_final_neon(void *state, void *tag_xor, uint64_t assoclen,
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uint64_t cryptlen);
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int aegis128_have_aes_insn __ro_after_init;
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bool crypto_aegis128_have_simd(void)
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{
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if (cpu_have_feature(cpu_feature(AES))) {
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aegis128_have_aes_insn = 1;
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return true;
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}
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return IS_ENABLED(CONFIG_ARM64);
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}
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void crypto_aegis128_init_simd(union aegis_block *state,
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const union aegis_block *key,
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const u8 *iv)
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{
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kernel_neon_begin();
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crypto_aegis128_init_neon(state, key, iv);
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kernel_neon_end();
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}
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void crypto_aegis128_update_simd(union aegis_block *state, const void *msg)
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{
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kernel_neon_begin();
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crypto_aegis128_update_neon(state, msg);
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kernel_neon_end();
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}
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void crypto_aegis128_encrypt_chunk_simd(union aegis_block *state, u8 *dst,
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const u8 *src, unsigned int size)
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{
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kernel_neon_begin();
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crypto_aegis128_encrypt_chunk_neon(state, dst, src, size);
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kernel_neon_end();
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}
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void crypto_aegis128_decrypt_chunk_simd(union aegis_block *state, u8 *dst,
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const u8 *src, unsigned int size)
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{
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kernel_neon_begin();
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crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
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kernel_neon_end();
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}
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void crypto_aegis128_final_simd(union aegis_block *state,
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union aegis_block *tag_xor,
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u64 assoclen, u64 cryptlen)
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{
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kernel_neon_begin();
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crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen);
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kernel_neon_end();
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}
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