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(alg: &p8_ghash_alg); |
27 | if (ret) |
28 | goto err; |
29 | |
30 | ret = crypto_register_alg(alg: &p8_aes_alg); |
31 | if (ret) |
32 | goto err_unregister_ghash; |
33 | |
34 | ret = crypto_register_skcipher(alg: &p8_aes_cbc_alg); |
35 | if (ret) |
36 | goto err_unregister_aes; |
37 | |
38 | ret = crypto_register_skcipher(alg: &p8_aes_ctr_alg); |
39 | if (ret) |
40 | goto err_unregister_aes_cbc; |
41 | |
42 | ret = crypto_register_skcipher(alg: &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(alg: &p8_aes_ctr_alg); |
50 | err_unregister_aes_cbc: |
51 | crypto_unregister_skcipher(alg: &p8_aes_cbc_alg); |
52 | err_unregister_aes: |
53 | crypto_unregister_alg(alg: &p8_aes_alg); |
54 | err_unregister_ghash: |
55 | crypto_unregister_shash(alg: &p8_ghash_alg); |
56 | err: |
57 | return ret; |
58 | } |
59 | |
60 | static void __exit p8_exit(void) |
61 | { |
62 | crypto_unregister_skcipher(alg: &p8_aes_xts_alg); |
63 | crypto_unregister_skcipher(alg: &p8_aes_ctr_alg); |
64 | crypto_unregister_skcipher(alg: &p8_aes_cbc_alg); |
65 | crypto_unregister_alg(alg: &p8_aes_alg); |
66 | crypto_unregister_shash(alg: &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 |