56 lines
1.8 KiB
C
56 lines
1.8 KiB
C
/* Copyright (c) 2018, Google Inc.
|
|
*
|
|
* 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 <openssl/cpu.h>
|
|
|
|
#if defined(OPENSSL_AARCH64) && defined(OPENSSL_FUCHSIA) && \
|
|
!defined(OPENSSL_STATIC_ARMCAP)
|
|
|
|
#include <zircon/features.h>
|
|
#include <zircon/syscalls.h>
|
|
#include <zircon/types.h>
|
|
|
|
#include <openssl/arm_arch.h>
|
|
|
|
#include "internal.h"
|
|
|
|
extern uint32_t OPENSSL_armcap_P;
|
|
|
|
void OPENSSL_cpuid_setup(void) {
|
|
uint32_t hwcap;
|
|
zx_status_t rc = zx_system_get_features(ZX_FEATURE_KIND_CPU, &hwcap);
|
|
if (rc != ZX_OK || (hwcap & ZX_ARM64_FEATURE_ISA_ASIMD) == 0) {
|
|
// Matching OpenSSL, if NEON/ASIMD is missing, don't report other features
|
|
// either.
|
|
return;
|
|
}
|
|
|
|
OPENSSL_armcap_P |= ARMV7_NEON;
|
|
|
|
if (hwcap & ZX_ARM64_FEATURE_ISA_AES) {
|
|
OPENSSL_armcap_P |= ARMV8_AES;
|
|
}
|
|
if (hwcap & ZX_ARM64_FEATURE_ISA_PMULL) {
|
|
OPENSSL_armcap_P |= ARMV8_PMULL;
|
|
}
|
|
if (hwcap & ZX_ARM64_FEATURE_ISA_SHA1) {
|
|
OPENSSL_armcap_P |= ARMV8_SHA1;
|
|
}
|
|
if (hwcap & ZX_ARM64_FEATURE_ISA_SHA2) {
|
|
OPENSSL_armcap_P |= ARMV8_SHA256;
|
|
}
|
|
}
|
|
|
|
#endif // OPENSSL_AARCH64 && !OPENSSL_STATIC_ARMCAP
|