1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only 2*4882a593Smuzhiyun /** 3*4882a593Smuzhiyun * Routines supporting VMX instructions on the Power 8 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2015 International Business Machines Inc. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> 8*4882a593Smuzhiyun */ 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <linux/module.h> 11*4882a593Smuzhiyun #include <linux/moduleparam.h> 12*4882a593Smuzhiyun #include <linux/types.h> 13*4882a593Smuzhiyun #include <linux/err.h> 14*4882a593Smuzhiyun #include <linux/cpufeature.h> 15*4882a593Smuzhiyun #include <linux/crypto.h> 16*4882a593Smuzhiyun #include <asm/cputable.h> 17*4882a593Smuzhiyun #include <crypto/internal/hash.h> 18*4882a593Smuzhiyun #include <crypto/internal/skcipher.h> 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun extern struct shash_alg p8_ghash_alg; 21*4882a593Smuzhiyun extern struct crypto_alg p8_aes_alg; 22*4882a593Smuzhiyun extern struct skcipher_alg p8_aes_cbc_alg; 23*4882a593Smuzhiyun extern struct skcipher_alg p8_aes_ctr_alg; 24*4882a593Smuzhiyun extern struct skcipher_alg p8_aes_xts_alg; 25*4882a593Smuzhiyun p8_init(void)26*4882a593Smuzhiyunstatic int __init p8_init(void) 27*4882a593Smuzhiyun { 28*4882a593Smuzhiyun int ret; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun ret = crypto_register_shash(&p8_ghash_alg); 31*4882a593Smuzhiyun if (ret) 32*4882a593Smuzhiyun goto err; 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun ret = crypto_register_alg(&p8_aes_alg); 35*4882a593Smuzhiyun if (ret) 36*4882a593Smuzhiyun goto err_unregister_ghash; 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun ret = crypto_register_skcipher(&p8_aes_cbc_alg); 39*4882a593Smuzhiyun if (ret) 40*4882a593Smuzhiyun goto err_unregister_aes; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun ret = crypto_register_skcipher(&p8_aes_ctr_alg); 43*4882a593Smuzhiyun if (ret) 44*4882a593Smuzhiyun goto err_unregister_aes_cbc; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun ret = crypto_register_skcipher(&p8_aes_xts_alg); 47*4882a593Smuzhiyun if (ret) 48*4882a593Smuzhiyun goto err_unregister_aes_ctr; 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun return 0; 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun err_unregister_aes_ctr: 53*4882a593Smuzhiyun crypto_unregister_skcipher(&p8_aes_ctr_alg); 54*4882a593Smuzhiyun err_unregister_aes_cbc: 55*4882a593Smuzhiyun crypto_unregister_skcipher(&p8_aes_cbc_alg); 56*4882a593Smuzhiyun err_unregister_aes: 57*4882a593Smuzhiyun crypto_unregister_alg(&p8_aes_alg); 58*4882a593Smuzhiyun err_unregister_ghash: 59*4882a593Smuzhiyun crypto_unregister_shash(&p8_ghash_alg); 60*4882a593Smuzhiyun err: 61*4882a593Smuzhiyun return ret; 62*4882a593Smuzhiyun } 63*4882a593Smuzhiyun p8_exit(void)64*4882a593Smuzhiyunstatic void __exit p8_exit(void) 65*4882a593Smuzhiyun { 66*4882a593Smuzhiyun crypto_unregister_skcipher(&p8_aes_xts_alg); 67*4882a593Smuzhiyun crypto_unregister_skcipher(&p8_aes_ctr_alg); 68*4882a593Smuzhiyun crypto_unregister_skcipher(&p8_aes_cbc_alg); 69*4882a593Smuzhiyun crypto_unregister_alg(&p8_aes_alg); 70*4882a593Smuzhiyun crypto_unregister_shash(&p8_ghash_alg); 71*4882a593Smuzhiyun } 72*4882a593Smuzhiyun 73*4882a593Smuzhiyun module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init); 74*4882a593Smuzhiyun module_exit(p8_exit); 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun MODULE_AUTHOR("Marcelo Cerri<mhcerri@br.ibm.com>"); 77*4882a593Smuzhiyun MODULE_DESCRIPTION("IBM VMX cryptographic acceleration instructions " 78*4882a593Smuzhiyun "support on Power 8"); 79*4882a593Smuzhiyun MODULE_LICENSE("GPL"); 80*4882a593Smuzhiyun MODULE_VERSION("1.0.0"); 81*4882a593Smuzhiyun MODULE_IMPORT_NS(CRYPTO_INTERNAL); 82