| /* Copyright (c) 2018, Google Inc. |
| * Copyright (c) 2020, Arm Ltd. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #include "internal.h" |
| |
| #if defined(OPENSSL_AARCH64) && defined(OPENSSL_WINDOWS) && \ |
| !defined(OPENSSL_STATIC_ARMCAP) |
| |
| #include <windows.h> |
| |
| #include <openssl/arm_arch.h> |
| |
| extern uint32_t OPENSSL_armcap_P; |
| void OPENSSL_cpuid_setup(void) { |
| // We do not need to check for the presence of NEON, as Armv8-A always has it |
| OPENSSL_armcap_P |= ARMV7_NEON; |
| |
| if (IsProcessorFeaturePresent(PF_ARM_V8_CRYPTO_INSTRUCTIONS_AVAILABLE)) { |
| // These are all covered by one call in Windows |
| OPENSSL_armcap_P |= ARMV8_AES; |
| OPENSSL_armcap_P |= ARMV8_PMULL; |
| OPENSSL_armcap_P |= ARMV8_SHA1; |
| OPENSSL_armcap_P |= ARMV8_SHA256; |
| } |
| // As of writing, Windows does not have a |PF_*| value for ARMv8.2 SHA-512 |
| // extensions. When it does, add it here. |
| } |
| |
| #endif // OPENSSL_AARCH64 && OPENSSL_WINDOWS && !OPENSSL_STATIC_ARMCAP |
