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
22static 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
48err_unregister_aes_ctr:
49	crypto_unregister_skcipher(&p8_aes_ctr_alg);
50err_unregister_aes_cbc:
51	crypto_unregister_skcipher(&p8_aes_cbc_alg);
52err_unregister_aes:
53	crypto_unregister_alg(&p8_aes_alg);
54err_unregister_ghash:
55	crypto_unregister_shash(&p8_ghash_alg);
56err:
57	return ret;
58}
59
60static 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
69module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init);
70module_exit(p8_exit);
71
72MODULE_AUTHOR("Marcelo Cerri<mhcerri@br.ibm.com>");
73MODULE_DESCRIPTION("IBM VMX cryptographic acceleration instructions "
74		   "support on Power 8");
75MODULE_LICENSE("GPL");
76MODULE_VERSION("1.0.0");
77MODULE_IMPORT_NS(CRYPTO_INTERNAL);
78