105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef BASE_CPU_H_
|
|
#define BASE_CPU_H_
|
|
|
|
#include <string>
|
|
#include <tuple>
|
|
|
|
#include "base/base_export.h"
|
|
#include "build/build_config.h"
|
|
|
|
namespace base {
|
|
|
|
#if defined(ARCH_CPU_X86_FAMILY)
|
|
namespace internal {
|
|
|
|
// Compute the CPU family and model based on the vendor and CPUID signature.
|
|
// Returns in order: family, model, extended family, extended model.
|
|
BASE_EXPORT std::tuple<int, int, int, int> ComputeX86FamilyAndModel(
|
|
const std::string& vendor,
|
|
int signature);
|
|
|
|
} // namespace internal
|
|
#endif // defined(ARCH_CPU_X86_FAMILY)
|
|
|
|
// Query information about the processor.
|
|
class BASE_EXPORT CPU final {
|
|
public:
|
|
CPU();
|
|
|
|
enum IntelMicroArchitecture {
|
|
PENTIUM,
|
|
SSE,
|
|
SSE2,
|
|
SSE3,
|
|
SSSE3,
|
|
SSE41,
|
|
SSE42,
|
|
AVX,
|
|
AVX2,
|
|
MAX_INTEL_MICRO_ARCHITECTURE
|
|
};
|
|
|
|
// Accessors for CPU information.
|
|
const std::string& vendor_name() const { return cpu_vendor_; }
|
|
int signature() const { return signature_; }
|
|
int stepping() const { return stepping_; }
|
|
int model() const { return model_; }
|
|
int family() const { return family_; }
|
|
int type() const { return type_; }
|
|
int extended_model() const { return ext_model_; }
|
|
int extended_family() const { return ext_family_; }
|
|
bool has_mmx() const { return has_mmx_; }
|
|
bool has_sse() const { return has_sse_; }
|
|
bool has_sse2() const { return has_sse2_; }
|
|
bool has_sse3() const { return has_sse3_; }
|
|
bool has_ssse3() const { return has_ssse3_; }
|
|
bool has_sse41() const { return has_sse41_; }
|
|
bool has_sse42() const { return has_sse42_; }
|
|
bool has_popcnt() const { return has_popcnt_; }
|
|
bool has_avx() const { return has_avx_; }
|
|
bool has_avx2() const { return has_avx2_; }
|
|
bool has_aesni() const { return has_aesni_; }
|
|
bool has_non_stop_time_stamp_counter() const {
|
|
return has_non_stop_time_stamp_counter_;
|
|
}
|
|
bool is_running_in_vm() const { return is_running_in_vm_; }
|
|
|
|
IntelMicroArchitecture GetIntelMicroArchitecture() const;
|
|
const std::string& cpu_brand() const { return cpu_brand_; }
|
|
|
|
private:
|
|
// Query the processor for CPUID information.
|
|
void Initialize();
|
|
|
|
int signature_; // raw form of type, family, model, and stepping
|
|
int type_; // process type
|
|
int family_; // family of the processor
|
|
int model_; // model of processor
|
|
int stepping_; // processor revision number
|
|
int ext_model_;
|
|
int ext_family_;
|
|
bool has_mmx_;
|
|
bool has_sse_;
|
|
bool has_sse2_;
|
|
bool has_sse3_;
|
|
bool has_ssse3_;
|
|
bool has_sse41_;
|
|
bool has_sse42_;
|
|
bool has_popcnt_;
|
|
bool has_avx_;
|
|
bool has_avx2_;
|
|
bool has_aesni_;
|
|
bool has_non_stop_time_stamp_counter_;
|
|
bool is_running_in_vm_;
|
|
std::string cpu_vendor_;
|
|
std::string cpu_brand_;
|
|
};
|
|
|
|
} // namespace base
|
|
|
|
#endif // BASE_CPU_H_
|