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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * The MORUS-640 Authenticated-Encryption Algorithm
   4  *   Glue for SSE2 implementation
   5  *
   6  * Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
   7  * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
   8  */
   9
  10 #include <crypto/internal/aead.h>
  11 #include <crypto/internal/simd.h>
  12 #include <crypto/morus640_glue.h>
  13 #include <linux/module.h>
  14 #include <asm/fpu/api.h>
  15 #include <asm/cpu_device_id.h>
  16
  17 asmlinkage void crypto_morus640_sse2_init(void *state, const void *key,
  18                                           const void *iv);
  19 asmlinkage void crypto_morus640_sse2_ad(void *state, const void *data,
  20                                         unsigned int length);
  21
  22 asmlinkage void crypto_morus640_sse2_enc(void *state, const void *src,
  23                                          void *dst, unsigned int length);
  24 asmlinkage void crypto_morus640_sse2_dec(void *state, const void *src,
  25                                          void *dst, unsigned int length);
  26
  27 asmlinkage void crypto_morus640_sse2_enc_tail(void *state, const void *src,
  28                                               void *dst, unsigned int length);
  29 asmlinkage void crypto_morus640_sse2_dec_tail(void *state, const void *src,
  30                                               void *dst, unsigned int length);
  31
  32 asmlinkage void crypto_morus640_sse2_final(void *state, void *tag_xor,
  33                                            u64 assoclen, u64 cryptlen);
  34
  35 MORUS640_DECLARE_ALG(sse2, "morus640-sse2", 400);
  36
  37 static struct simd_aead_alg *simd_alg;
  38
  39 static int __init crypto_morus640_sse2_module_init(void)
  40 {
  41         if (!boot_cpu_has(X86_FEATURE_XMM2) ||
  42             !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL))
  43                 return -ENODEV;
  44
  45         return simd_register_aeads_compat(&crypto_morus640_sse2_alg, 1,
  46                                           &simd_alg);
  47 }
  48
  49 static void __exit crypto_morus640_sse2_module_exit(void)
  50 {
  51         simd_unregister_aeads(&crypto_morus640_sse2_alg, 1, &simd_alg);
  52 }
  53
  54 module_init(crypto_morus640_sse2_module_init);
  55 module_exit(crypto_morus640_sse2_module_exit);
  56
  57 MODULE_LICENSE("GPL");
  58 MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
  59 MODULE_DESCRIPTION("MORUS-640 AEAD algorithm -- SSE2 implementation");
  60 MODULE_ALIAS_CRYPTO("morus640");
  61 MODULE_ALIAS_CRYPTO("morus640-sse2");