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 void crypto_aegis128_final_neon(void *state, void *tag_xor, uint64_t assoclen,
18 uint64_t cryptlen);
19
20 int aegis128_have_aes_insn __ro_after_init;
21
crypto_aegis128_have_simd(void)22 bool crypto_aegis128_have_simd(void)
23 {
24 if (cpu_have_feature(cpu_feature(AES))) {
25 aegis128_have_aes_insn = 1;
26 return true;
27 }
28 return IS_ENABLED(CONFIG_ARM64);
29 }
30
crypto_aegis128_init_simd(union aegis_block * state,const union aegis_block * key,const u8 * iv)31 void crypto_aegis128_init_simd(union aegis_block *state,
32 const union aegis_block *key,
33 const u8 *iv)
34 {
35 kernel_neon_begin();
36 crypto_aegis128_init_neon(state, key, iv);
37 kernel_neon_end();
38 }
39
crypto_aegis128_update_simd(union aegis_block * state,const void * msg)40 void crypto_aegis128_update_simd(union aegis_block *state, const void *msg)
41 {
42 kernel_neon_begin();
43 crypto_aegis128_update_neon(state, msg);
44 kernel_neon_end();
45 }
46
crypto_aegis128_encrypt_chunk_simd(union aegis_block * state,u8 * dst,const u8 * src,unsigned int size)47 void crypto_aegis128_encrypt_chunk_simd(union aegis_block *state, u8 *dst,
48 const u8 *src, unsigned int size)
49 {
50 kernel_neon_begin();
51 crypto_aegis128_encrypt_chunk_neon(state, dst, src, size);
52 kernel_neon_end();
53 }
54
crypto_aegis128_decrypt_chunk_simd(union aegis_block * state,u8 * dst,const u8 * src,unsigned int size)55 void crypto_aegis128_decrypt_chunk_simd(union aegis_block *state, u8 *dst,
56 const u8 *src, unsigned int size)
57 {
58 kernel_neon_begin();
59 crypto_aegis128_decrypt_chunk_neon(state, dst, src, size);
60 kernel_neon_end();
61 }
62
crypto_aegis128_final_simd(union aegis_block * state,union aegis_block * tag_xor,u64 assoclen,u64 cryptlen)63 void crypto_aegis128_final_simd(union aegis_block *state,
64 union aegis_block *tag_xor,
65 u64 assoclen, u64 cryptlen)
66 {
67 kernel_neon_begin();
68 crypto_aegis128_final_neon(state, tag_xor, assoclen, cryptlen);
69 kernel_neon_end();
70 }
71