1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2019 Linaro Ltd <ard.biesheuvel@linaro.org>
4 */
5
6 #include <asm/cpufeature.h>
7 #include <asm/neon.h>
8
9 #include "aegis.h"
10 #include "aegis-neon.h"
11
12 int aegis128_have_aes_insn __ro_after_init;
13
14 bool crypto_aegis128_have_simd(void)
15 {
16 if (cpu_have_feature(cpu_feature(AES))) {
17 aegis128_have_aes_insn = 1;
18 return true;
19 }
20 return IS_ENABLED(CONFIG_ARM64);
21 }
22
23 void crypto_aegis128_init_simd(struct aegis_state *state,
24 const union aegis_block *key,
25 const u8 *iv)
26 {
27 kernel_neon_begin();
28 crypto_aegis128_init_neon(state, key, iv);
29 kernel_neon_end();
30 }
31
32 void crypto_aegis128_update_simd(struct aegis_state *state, const void *msg)
33 {
34 kernel_neon_begin();
35 crypto_aegis128_update_neon(state, msg);
36 kernel_neon_end();
37 }
38
39 void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *state, u8 *dst,
40 const u8 *src, unsigned int size)
41 {
42 kernel_neon_begin();
43 crypto_aegis128_encrypt_chunk_neon(state, dst, src, size);
44 kernel_neon_end();
45 }
46
47 void crypto_aegis128_decrypt_chunk_simd(struct aegis_state *state, u8 *dst,
48 const u8 *src, unsigned int size)
49 {
50 kernel_neon_begin();
51 crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
52 kernel_neon_end();
53 }
54
55 int crypto_aegis128_final_simd(struct aegis_state *state,
56 union aegis_block *tag_xor,
57 unsigned int assoclen,
58 unsigned int cryptlen,
59 unsigned int authsize)
60 {
61 int ret;
62
63 kernel_neon_begin();
64 ret = crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen,
65 authsize);
66 kernel_neon_end();
67
68 return ret;
69 }
70
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