1 // SPDX-License-Identifier: GPL-2.0-only
3 * sha512-glue.c - accelerated SHA-384/512 for ARM
5 * Copyright (C) 2015 Linaro Ltd <ard.biesheuvel@linaro.org>
8 #include <crypto/internal/hash.h>
9 #include <crypto/sha.h>
10 #include <crypto/sha512_base.h>
11 #include <linux/crypto.h>
12 #include <linux/module.h>
14 #include <asm/hwcap.h>
19 MODULE_DESCRIPTION("Accelerated SHA-384/SHA-512 secure hash for ARM");
20 MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
21 MODULE_LICENSE("GPL v2");
23 MODULE_ALIAS_CRYPTO("sha384");
24 MODULE_ALIAS_CRYPTO("sha512");
25 MODULE_ALIAS_CRYPTO("sha384-arm");
26 MODULE_ALIAS_CRYPTO("sha512-arm");
28 asmlinkage
void sha512_block_data_order(u64
*state
, u8
const *src
, int blocks
);
30 int sha512_arm_update(struct shash_desc
*desc
, const u8
*data
,
33 return sha512_base_do_update(desc
, data
, len
,
34 (sha512_block_fn
*)sha512_block_data_order
);
37 static int sha512_arm_final(struct shash_desc
*desc
, u8
*out
)
39 sha512_base_do_finalize(desc
,
40 (sha512_block_fn
*)sha512_block_data_order
);
41 return sha512_base_finish(desc
, out
);
44 int sha512_arm_finup(struct shash_desc
*desc
, const u8
*data
,
45 unsigned int len
, u8
*out
)
47 sha512_base_do_update(desc
, data
, len
,
48 (sha512_block_fn
*)sha512_block_data_order
);
49 return sha512_arm_final(desc
, out
);
52 static struct shash_alg sha512_arm_algs
[] = { {
53 .init
= sha384_base_init
,
54 .update
= sha512_arm_update
,
55 .final
= sha512_arm_final
,
56 .finup
= sha512_arm_finup
,
57 .descsize
= sizeof(struct sha512_state
),
58 .digestsize
= SHA384_DIGEST_SIZE
,
61 .cra_driver_name
= "sha384-arm",
63 .cra_blocksize
= SHA512_BLOCK_SIZE
,
64 .cra_module
= THIS_MODULE
,
67 .init
= sha512_base_init
,
68 .update
= sha512_arm_update
,
69 .final
= sha512_arm_final
,
70 .finup
= sha512_arm_finup
,
71 .descsize
= sizeof(struct sha512_state
),
72 .digestsize
= SHA512_DIGEST_SIZE
,
75 .cra_driver_name
= "sha512-arm",
77 .cra_blocksize
= SHA512_BLOCK_SIZE
,
78 .cra_module
= THIS_MODULE
,
82 static int __init
sha512_arm_mod_init(void)
86 err
= crypto_register_shashes(sha512_arm_algs
,
87 ARRAY_SIZE(sha512_arm_algs
));
91 if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON
) && cpu_has_neon()) {
92 err
= crypto_register_shashes(sha512_neon_algs
,
93 ARRAY_SIZE(sha512_neon_algs
));
100 crypto_unregister_shashes(sha512_arm_algs
,
101 ARRAY_SIZE(sha512_arm_algs
));
106 static void __exit
sha512_arm_mod_fini(void)
108 crypto_unregister_shashes(sha512_arm_algs
,
109 ARRAY_SIZE(sha512_arm_algs
));
110 if (IS_ENABLED(CONFIG_KERNEL_MODE_NEON
) && cpu_has_neon())
111 crypto_unregister_shashes(sha512_neon_algs
,
112 ARRAY_SIZE(sha512_neon_algs
));
115 module_init(sha512_arm_mod_init
);
116 module_exit(sha512_arm_mod_fini
);