1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* sm3-neon-glue.c - SM3 secure hash using NEON instructions
*
* Copyright (C) 2022 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
*/
#include <asm/neon.h>
#include <crypto/internal/hash.h>
#include <crypto/sm3.h>
#include <crypto/sm3_base.h>
#include <linux/cpufeature.h>
#include <linux/kernel.h>
#include <linux/module.h>
asmlinkage void sm3_neon_transform(struct sm3_state *sst, u8 const *src,
int blocks);
static int sm3_neon_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
int remain;
kernel_neon_begin();
remain = sm3_base_do_update_blocks(desc, data, len, sm3_neon_transform);
kernel_neon_end();
return remain;
}
static int sm3_neon_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
kernel_neon_begin();
sm3_base_do_finup(desc, data, len, sm3_neon_transform);
kernel_neon_end();
return sm3_base_finish(desc, out);
}
static struct shash_alg sm3_alg = {
.digestsize = SM3_DIGEST_SIZE,
.init = sm3_base_init,
.update = sm3_neon_update,
.finup = sm3_neon_finup,
.descsize = SM3_STATE_SIZE,
.base.cra_name = "sm3",
.base.cra_driver_name = "sm3-neon",
.base.cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY |
CRYPTO_AHASH_ALG_FINUP_MAX,
.base.cra_blocksize = SM3_BLOCK_SIZE,
.base.cra_module = THIS_MODULE,
.base.cra_priority = 200,
};
static int __init sm3_neon_init(void)
{
return crypto_register_shash(&sm3_alg);
}
static void __exit sm3_neon_fini(void)
{
crypto_unregister_shash(&sm3_alg);
}
module_init(sm3_neon_init);
module_exit(sm3_neon_fini);
MODULE_DESCRIPTION("SM3 secure hash using NEON instructions");
MODULE_AUTHOR("Jussi Kivilinna <jussi.kivilinna@iki.fi>");
MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
MODULE_LICENSE("GPL v2");
|
