arch/x86/crypto/morus640-sse2-glue.c

   1 /*
   2  * The MORUS-640 Authenticated-Encryption Algorithm
   3  *   Glue for SSE2 implementation
   4  *
   5  * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
   6  * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the Free
  10  * Software Foundation; either version 2 of the License, or (at your option)
  11  * any later version.
  12  */
  13
  14 #include <crypto/internal/aead.h>
  15 #include <crypto/morus640_glue.h>
  16 #include <linux/module.h>
  17 #include <asm/fpu/api.h>
  18 #include <asm/cpu_device_id.h>
  19
  20 asmlinkage void crypto_morus640_sse2_init(void *state, const void *key,
  21                                           const void *iv);
  22 asmlinkage void crypto_morus640_sse2_ad(void *state, const void *data,
  23                                         unsigned int length);
  24
  25 asmlinkage void crypto_morus640_sse2_enc(void *state, const void *src,
  26                                          void *dst, unsigned int length);
  27 asmlinkage void crypto_morus640_sse2_dec(void *state, const void *src,
  28                                          void *dst, unsigned int length);
  29
  30 asmlinkage void crypto_morus640_sse2_enc_tail(void *state, const void *src,
  31                                               void *dst, unsigned int length);
  32 asmlinkage void crypto_morus640_sse2_dec_tail(void *state, const void *src,
  33                                               void *dst, unsigned int length);
  34
  35 asmlinkage void crypto_morus640_sse2_final(void *state, void *tag_xor,
  36                                            u64 assoclen, u64 cryptlen);
  37
  38 MORUS640_DECLARE_ALGS(sse2, "morus640-sse2", 400);
  39
  40 static int __init crypto_morus640_sse2_module_init(void)
  41 {
  42         if (!boot_cpu_has(X86_FEATURE_XMM2) ||
  43             !boot_cpu_has(X86_FEATURE_OSXSAVE) ||
  44             !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL))
  45                 return -ENODEV;
  46
  47         return crypto_register_aeads(crypto_morus640_sse2_algs,
  48                                      ARRAY_SIZE(crypto_morus640_sse2_algs));
  49 }
  50
  51 static void __exit crypto_morus640_sse2_module_exit(void)
  52 {
  53         crypto_unregister_aeads(crypto_morus640_sse2_algs,
  54                                 ARRAY_SIZE(crypto_morus640_sse2_algs));
  55 }
  56
  57 module_init(crypto_morus640_sse2_module_init);
  58 module_exit(crypto_morus640_sse2_module_exit);
  59
  60 MODULE_LICENSE("GPL");
  61 MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
  62 MODULE_DESCRIPTION("MORUS-640 AEAD algorithm -- SSE2 implementation");
  63 MODULE_ALIAS_CRYPTO("morus640");
  64 MODULE_ALIAS_CRYPTO("morus640-sse2");