1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2020 The FreeBSD Foundation 5 * 6 * This software was developed by Mitchell Horne <mhorne@FreeBSD.org> 7 * under sponsorship from the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #include <sys/types.h> 34 35 #include <machine/elf.h> 36 #include <machine/md_var.h> 37 38 #include <crypto/openssl/ossl.h> 39 #include <crypto/openssl/aarch64/arm_arch.h> 40 41 /* 42 * Feature bits defined in arm_arch.h 43 */ 44 unsigned int OPENSSL_armcap_P; 45 46 void 47 ossl_cpuid(void) 48 { 49 /* SHA features */ 50 if ((elf_hwcap & HWCAP_SHA1) != 0) 51 OPENSSL_armcap_P |= ARMV8_SHA1; 52 if ((elf_hwcap & HWCAP_SHA2) != 0) 53 OPENSSL_armcap_P |= ARMV8_SHA256; 54 if ((elf_hwcap & HWCAP_SHA512) != 0) 55 OPENSSL_armcap_P |= ARMV8_SHA512; 56 57 /* AES features */ 58 if ((elf_hwcap & HWCAP_AES) != 0) 59 OPENSSL_armcap_P |= ARMV8_AES; 60 if ((elf_hwcap & HWCAP_PMULL) != 0) 61 OPENSSL_armcap_P |= ARMV8_PMULL; 62 } 63