1 // SPDX-License-Identifier: GPL-2.0-only
3 * Routines supporting VMX instructions on the Power 8
5 * Copyright (C) 2015 International Business Machines Inc.
7 * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com>
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>
19 extern struct shash_alg p8_ghash_alg;
20 extern struct crypto_alg p8_aes_alg;
21 extern struct crypto_alg p8_aes_cbc_alg;
22 extern struct crypto_alg p8_aes_ctr_alg;
23 extern struct crypto_alg p8_aes_xts_alg;
24 static struct crypto_alg *algs[] = {
32 static int __init p8_init(void)
35 struct crypto_alg **alg_it;
37 for (alg_it = algs; *alg_it; alg_it++) {
38 ret = crypto_register_alg(*alg_it);
39 printk(KERN_INFO "crypto_register_alg '%s' = %d\n",
40 (*alg_it)->cra_name, ret);
42 for (alg_it--; alg_it >= algs; alg_it--)
43 crypto_unregister_alg(*alg_it);
50 ret = crypto_register_shash(&p8_ghash_alg);
52 for (alg_it = algs; *alg_it; alg_it++)
53 crypto_unregister_alg(*alg_it);
58 static void __exit p8_exit(void)
60 struct crypto_alg **alg_it;
62 for (alg_it = algs; *alg_it; alg_it++) {
63 printk(KERN_INFO "Removing '%s'\n", (*alg_it)->cra_name);
64 crypto_unregister_alg(*alg_it);
66 crypto_unregister_shash(&p8_ghash_alg);
69 module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init);
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");