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
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