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89a3f0358a
* 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
41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
// Copyright 2023 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "cpu_features_macros.h"
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#ifdef CPU_FEATURES_ARCH_AARCH64
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#if (defined(CPU_FEATURES_OS_FREEBSD) || defined(CPU_FEATURES_OS_LINUX) || \
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defined(CPU_FEATURES_OS_ANDROID))
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#if (defined(CPU_FEATURES_COMPILER_GCC) || defined(CPU_FEATURES_COMPILER_CLANG))
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#include "internal/cpuid_aarch64.h"
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#ifdef CPU_FEATURES_MOCK_CPUID_AARCH64
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// Implementation will be provided by test/cpuinfo_aarch64_test.cc.
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#else
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uint64_t GetMidrEl1(void) {
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uint64_t midr_el1;
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__asm("mrs %0, MIDR_EL1" : "=r"(midr_el1));
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return midr_el1;
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}
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#endif // CPU_FEATURES_MOCK_CPUID_AARCH64
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#else
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#error "Unsupported compiler, aarch64 cpuid requires either GCC or Clang."
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#endif // (defined(CPU_FEATURES_COMPILER_GCC) ||
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// defined(CPU_FEATURES_COMPILER_CLANG))
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#endif // (defined(CPU_FEATURES_OS_FREEBSD) || defined(CPU_FEATURES_OS_LINUX)
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// || defined(CPU_FEATURES_OS_ANDROID))
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#endif // CPU_FEATURES_ARCH_AARCH64
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