1 /* $NetBSD: aes_neon_impl.h,v 1.4 2023/08/07 01:07:35 rin Exp $ */
2
3 /*-
4 * Copyright (c) 2020 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #ifndef _CRYPTO_AES_ARCH_ARM_AES_NEON_IMPL_H
30 #define _CRYPTO_AES_ARCH_ARM_AES_NEON_IMPL_H
31
32 #include <sys/types.h>
33
34 #include <crypto/arch/arm/arm_neon.h>
35 #include <crypto/arch/arm/arm_neon_imm.h>
36
37 #include <crypto/aes/aes.h>
38 #include <crypto/aes/arch/arm/aes_neon.h>
39
40 uint8x16_t aes_neon_enc1(const struct aesenc *, uint8x16_t, unsigned);
41 uint8x16_t aes_neon_dec1(const struct aesdec *, uint8x16_t, unsigned);
42
43 #ifdef __aarch64__
44
45 uint8x16x2_t aes_neon_enc2(const struct aesenc *, uint8x16x2_t, unsigned);
46 uint8x16x2_t aes_neon_dec2(const struct aesdec *, uint8x16x2_t, unsigned);
47
48 #else
49
50 static inline uint8x16x2_t
aes_neon_enc2(const struct aesenc * enc,uint8x16x2_t b2,unsigned nrounds)51 aes_neon_enc2(const struct aesenc *enc, uint8x16x2_t b2, unsigned nrounds)
52 {
53
54 return (uint8x16x2_t) { .val = {
55 [0] = aes_neon_enc1(enc, b2.val[0], nrounds),
56 [1] = aes_neon_enc1(enc, b2.val[1], nrounds),
57 } };
58 }
59
60 static inline uint8x16x2_t
aes_neon_dec2(const struct aesdec * dec,uint8x16x2_t b2,unsigned nrounds)61 aes_neon_dec2(const struct aesdec *dec, uint8x16x2_t b2, unsigned nrounds)
62 {
63
64 return (uint8x16x2_t) { .val = {
65 [0] = aes_neon_dec1(dec, b2.val[0], nrounds),
66 [1] = aes_neon_dec1(dec, b2.val[1], nrounds),
67 } };
68 }
69
70 #endif
71
72 #endif /* _CRYPTO_AES_ARCH_ARM_AES_NEON_IMPL_H */
73