arch/x86/crypto/morus1280-avx2-glue.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * The MORUS-1280 Authenticated-Encryption Algorithm
   4  *   Glue for AVX2 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/morus1280_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_morus1280_avx2_init(void *state, const void *key,
  18                                            const void *iv);
  19 asmlinkage void crypto_morus1280_avx2_ad(void *state, const void *data,
  20                                          unsigned int length);
  21
  22 asmlinkage void crypto_morus1280_avx2_enc(void *state, const void *src,
  23                                           void *dst, unsigned int length);
  24 asmlinkage void crypto_morus1280_avx2_dec(void *state, const void *src,
  25                                           void *dst, unsigned int length);
  26
  27 asmlinkage void crypto_morus1280_avx2_enc_tail(void *state, const void *src,
  28                                                void *dst, unsigned int length);
  29 asmlinkage void crypto_morus1280_avx2_dec_tail(void *state, const void *src,
  30                                                void *dst, unsigned int length);
  31
  32 asmlinkage void crypto_morus1280_avx2_final(void *state, void *tag_xor,
  33                                             u64 assoclen, u64 cryptlen);
  34
  35 MORUS1280_DECLARE_ALG(avx2, "morus1280-avx2", 400);
  36
  37 static struct simd_aead_alg *simd_alg;
  38
  39 static int __init crypto_morus1280_avx2_module_init(void)
  40 {
  41         if (!boot_cpu_has(X86_FEATURE_AVX2) ||
  42             !boot_cpu_has(X86_FEATURE_OSXSAVE) ||
  43             !cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
  44                 return -ENODEV;
  45
  46         return simd_register_aeads_compat(&crypto_morus1280_avx2_alg, 1,
  47                                           &simd_alg);
  48 }
  49
  50 static void __exit crypto_morus1280_avx2_module_exit(void)
  51 {
  52         simd_unregister_aeads(&crypto_morus1280_avx2_alg, 1, &simd_alg);
  53 }
  54
  55 module_init(crypto_morus1280_avx2_module_init);
  56 module_exit(crypto_morus1280_avx2_module_exit);
  57
  58 MODULE_LICENSE("GPL");
  59 MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
  60 MODULE_DESCRIPTION("MORUS-1280 AEAD algorithm -- AVX2 implementation");
  61 MODULE_ALIAS_CRYPTO("morus1280");
  62 MODULE_ALIAS_CRYPTO("morus1280-avx2");