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