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Add FreeBSD Arm64 support (#295)

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* Add FreeBSD Arm64 detection

Getting all the features is handled by reading /var/run/dmesg.boot. Feature detections were taken from the freebsd kernel code sys/arm64/arm64/identcpu.c

* Add FreeBSD Arm64 tests

* Add flagm, flagm2 and rng detection

* Add HWCAP FreeBSD AArch64

* Update include to use linux hwcaps for powerpc

* Add FreeBSD aarch64 impl

* Separate Hwacps to freebsd and linux implementation

* Add aarch64 midr_el1 implementation

* Add detection hwcap cpuid to hwcaps.h

* Add MIDR_EL1 tests
This commit is contained in:
Mykola Hohsadze
2023-09-19 12:02:25 +03:00
committed by GitHub
parent 494d9657ef
commit 89a3f0358a
11 changed files with 424 additions and 155 deletions
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include/internal/cpuid_aarch64.h Normal file
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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CPU_FEATURES_INCLUDE_CPUID_AARCH64_H_
#define CPU_FEATURES_INCLUDE_CPUID_AARCH64_H_
#include <stdint.h>
#include "cpu_features_macros.h"
CPU_FEATURES_START_CPP_NAMESPACE
uint64_t GetMidrEl1(void);
CPU_FEATURES_END_CPP_NAMESPACE
#endif // CPU_FEATURES_INCLUDE_CPUID_AARCH64_H_