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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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6ecc9d9ff9
This patch adds optimized implementations of MORUS-640 and MORUS-1280, utilizing the SSE2 and AVX2 x86 extensions. For MORUS-1280 (which operates on 256-bit blocks) we provide both AVX2 and SSE2 implementation. Although SSE2 MORUS-1280 is slower than AVX2 MORUS-1280, it is comparable in speed to the SSE2 MORUS-640. Signed-off-by: Ondrej Mosnacek <omosnacek@gmail.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
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* The MORUS-640 Authenticated-Encryption Algorithm
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* Glue for SSE2 implementation
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*
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* Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
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* Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <crypto/internal/aead.h>
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#include <crypto/morus640_glue.h>
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#include <linux/module.h>
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#include <asm/fpu/api.h>
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#include <asm/cpu_device_id.h>
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asmlinkage void crypto_morus640_sse2_init(void *state, const void *key,
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const void *iv);
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asmlinkage void crypto_morus640_sse2_ad(void *state, const void *data,
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unsigned int length);
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asmlinkage void crypto_morus640_sse2_enc(void *state, const void *src,
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void *dst, unsigned int length);
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asmlinkage void crypto_morus640_sse2_dec(void *state, const void *src,
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void *dst, unsigned int length);
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asmlinkage void crypto_morus640_sse2_enc_tail(void *state, const void *src,
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void *dst, unsigned int length);
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asmlinkage void crypto_morus640_sse2_dec_tail(void *state, const void *src,
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void *dst, unsigned int length);
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asmlinkage void crypto_morus640_sse2_final(void *state, void *tag_xor,
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u64 assoclen, u64 cryptlen);
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MORUS640_DECLARE_ALGS(sse2, "morus640-sse2", 400);
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static const struct x86_cpu_id sse2_cpu_id[] = {
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X86_FEATURE_MATCH(X86_FEATURE_XMM2),
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{}
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};
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MODULE_DEVICE_TABLE(x86cpu, sse2_cpu_id);
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static int __init crypto_morus640_sse2_module_init(void)
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{
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if (!x86_match_cpu(sse2_cpu_id))
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return -ENODEV;
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return crypto_register_aeads(crypto_morus640_sse2_algs,
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ARRAY_SIZE(crypto_morus640_sse2_algs));
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}
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static void __exit crypto_morus640_sse2_module_exit(void)
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{
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crypto_unregister_aeads(crypto_morus640_sse2_algs,
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ARRAY_SIZE(crypto_morus640_sse2_algs));
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}
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module_init(crypto_morus640_sse2_module_init);
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module_exit(crypto_morus640_sse2_module_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
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MODULE_DESCRIPTION("MORUS-640 AEAD algorithm -- SSE2 implementation");
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MODULE_ALIAS_CRYPTO("morus640");
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MODULE_ALIAS_CRYPTO("morus640-sse2");
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