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
11 void crypto_aegis128_init_neon(void *state, const void *key, const void *iv);
12 void crypto_aegis128_update_neon(void *state, const void *msg);
13 void crypto_aegis128_encrypt_chunk_neon(void *state, void *dst, const void *src,
14 unsigned int size);
15 void crypto_aegis128_decrypt_chunk_neon(void *state, void *dst, const void *src,
16 unsigned int size);
17 int crypto_aegis128_final_neon(void *state, void *tag_xor,
18 unsigned int assoclen,
19 unsigned int cryptlen,
20 unsigned int authsize);
21
22 int aegis128_have_aes_insn __ro_after_init;
23
crypto_aegis128_have_simd(void)24 bool crypto_aegis128_have_simd(void)
25 {
26 if (cpu_have_feature(cpu_feature(AES))) {
27 aegis128_have_aes_insn = 1;
28 return true;
29 }
30 return IS_ENABLED(CONFIG_ARM64);
31 }
32
crypto_aegis128_init_simd(struct aegis_state * state,const union aegis_block * key,const u8 * iv)33 void crypto_aegis128_init_simd(struct aegis_state *state,
34 const union aegis_block *key,
35 const u8 *iv)
36 {
37 kernel_neon_begin();
38 crypto_aegis128_init_neon(state, key, iv);
39 kernel_neon_end();
40 }
41
crypto_aegis128_update_simd(struct aegis_state * state,const void * msg)42 void crypto_aegis128_update_simd(struct aegis_state *state, const void *msg)
43 {
44 kernel_neon_begin();
45 crypto_aegis128_update_neon(state, msg);
46 kernel_neon_end();
47 }
48
crypto_aegis128_encrypt_chunk_simd(struct aegis_state * state,u8 * dst,const u8 * src,unsigned int size)49 void crypto_aegis128_encrypt_chunk_simd(struct aegis_state *state, u8 *dst,
50 const u8 *src, unsigned int size)
51 {
52 kernel_neon_begin();
53 crypto_aegis128_encrypt_chunk_neon(state, dst, src, size);
54 kernel_neon_end();
55 }
56
crypto_aegis128_decrypt_chunk_simd(struct aegis_state * state,u8 * dst,const u8 * src,unsigned int size)57 void crypto_aegis128_decrypt_chunk_simd(struct aegis_state *state, u8 *dst,
58 const u8 *src, unsigned int size)
59 {
60 kernel_neon_begin();
61 crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
62 kernel_neon_end();
63 }
64
crypto_aegis128_final_simd(struct aegis_state * state,union aegis_block * tag_xor,unsigned int assoclen,unsigned int cryptlen,unsigned int authsize)65 int crypto_aegis128_final_simd(struct aegis_state *state,
66 union aegis_block *tag_xor,
67 unsigned int assoclen,
68 unsigned int cryptlen,
69 unsigned int authsize)
70 {
71 int ret;
72
73 kernel_neon_begin();
74 ret = crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen,
75 authsize);
76 kernel_neon_end();
77
78 return ret;
79 }
80