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aes_neon_impl.h revision 1.2 
      1 /*	$NetBSD: aes_neon_impl.h,v 1.2 2020/07/28 20:11:09 riastradh 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 "arm_neon.h"
     35 
     36 #include <crypto/aes/aes.h>
     37 #include <crypto/aes/arch/arm/aes_neon.h>
     38 
     39 uint8x16_t aes_neon_enc1(const struct aesenc *, uint8x16_t, unsigned);
     40 uint8x16_t aes_neon_dec1(const struct aesdec *, uint8x16_t, unsigned);
     41 
     42 #ifdef __aarch64__
     43 
     44 uint8x16x2_t aes_neon_enc2(const struct aesenc *, uint8x16x2_t, unsigned);
     45 uint8x16x2_t aes_neon_dec2(const struct aesdec *, uint8x16x2_t, unsigned);
     46 
     47 #else
     48 
     49 static inline uint8x16x2_t
     50 aes_neon_enc2(const struct aesenc *enc, uint8x16x2_t b2, unsigned nrounds)
     51 {
     52 
     53 	return (uint8x16x2_t) { .val = {
     54 		[0] = aes_neon_enc1(enc, b2.val[0], nrounds),
     55 		[1] = aes_neon_enc1(enc, b2.val[1], nrounds),
     56 	} };
     57 }
     58 
     59 static inline uint8x16x2_t
     60 aes_neon_dec2(const struct aesdec *dec, uint8x16x2_t b2, unsigned nrounds)
     61 {
     62 
     63 	return (uint8x16x2_t) { .val = {
     64 		[0] = aes_neon_dec1(dec, b2.val[0], nrounds),
     65 		[1] = aes_neon_dec1(dec, b2.val[1], nrounds),
     66 	} };
     67 }
     68 
     69 #endif
     70 
     71 #endif	/* _CRYPTO_AES_ARCH_ARM_AES_NEON_IMPL_H */
     72