| 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 | } |