1 // SPDX-License-Identifier: GPL-2.0-only 2 /** 3 * Routines supporting VMX instructions on the Power 8 4 * 5 * Copyright (C) 2015 International Business Machines Inc. 6 * 7 * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> 8 */ 9 10 #include <linux/module.h> 11 #include <linux/moduleparam.h> 12 #include <linux/types.h> 13 #include <linux/err.h> 14 #include <linux/cpufeature.h> 15 #include <linux/crypto.h> 16 #include <asm/cputable.h> 17 #include <crypto/internal/hash.h> 18 #include <crypto/internal/skcipher.h> 19 20 #include "aesp8-ppc.h" 21 22 static int __init p8_init(void) 23 { 24 int ret; 25 26 ret = crypto_register_shash(&p8_ghash_alg); 27 if (ret) 28 goto err; 29 30 ret = crypto_register_alg(&p8_aes_alg); 31 if (ret) 32 goto err_unregister_ghash; 33 34 ret = crypto_register_skcipher(&p8_aes_cbc_alg); 35 if (ret) 36 goto err_unregister_aes; 37 38 ret = crypto_register_skcipher(&p8_aes_ctr_alg); 39 if (ret) 40 goto err_unregister_aes_cbc; 41 42 ret = crypto_register_skcipher(&p8_aes_xts_alg); 43 if (ret) 44 goto err_unregister_aes_ctr; 45 46 return 0; 47 48 err_unregister_aes_ctr: 49 crypto_unregister_skcipher(&p8_aes_ctr_alg); 50 err_unregister_aes_cbc: 51 crypto_unregister_skcipher(&p8_aes_cbc_alg); 52 err_unregister_aes: 53 crypto_unregister_alg(&p8_aes_alg); 54 err_unregister_ghash: 55 crypto_unregister_shash(&p8_ghash_alg); 56 err: 57 return ret; 58 } 59 60 static void __exit p8_exit(void) 61 { 62 crypto_unregister_skcipher(&p8_aes_xts_alg); 63 crypto_unregister_skcipher(&p8_aes_ctr_alg); 64 crypto_unregister_skcipher(&p8_aes_cbc_alg); 65 crypto_unregister_alg(&p8_aes_alg); 66 crypto_unregister_shash(&p8_ghash_alg); 67 } 68 69 module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init); 70 module_exit(p8_exit); 71 72 MODULE_AUTHOR("Marcelo Cerri<mhcerri@br.ibm.com>"); 73 MODULE_DESCRIPTION("IBM VMX cryptographic acceleration instructions " 74 "support on Power 8"); 75 MODULE_LICENSE("GPL"); 76 MODULE_VERSION("1.0.0"); 77 MODULE_IMPORT_NS(CRYPTO_INTERNAL); 78