1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_CPU_H_ 6 #define BASE_CPU_H_ 7 8 #include <string> 9 10 #include "base/base_export.h" 11 12 namespace base { 13 14 // Query information about the processor. 15 class BASE_EXPORT CPU final { 16 public: 17 CPU(); 18 19 enum IntelMicroArchitecture { 20 PENTIUM, 21 SSE, 22 SSE2, 23 SSE3, 24 SSSE3, 25 SSE41, 26 SSE42, 27 AVX, 28 AVX2, 29 MAX_INTEL_MICRO_ARCHITECTURE 30 }; 31 32 // Accessors for CPU information. vendor_name()33 const std::string& vendor_name() const { return cpu_vendor_; } signature()34 int signature() const { return signature_; } stepping()35 int stepping() const { return stepping_; } model()36 int model() const { return model_; } family()37 int family() const { return family_; } type()38 int type() const { return type_; } extended_model()39 int extended_model() const { return ext_model_; } extended_family()40 int extended_family() const { return ext_family_; } has_mmx()41 bool has_mmx() const { return has_mmx_; } has_sse()42 bool has_sse() const { return has_sse_; } has_sse2()43 bool has_sse2() const { return has_sse2_; } has_sse3()44 bool has_sse3() const { return has_sse3_; } has_ssse3()45 bool has_ssse3() const { return has_ssse3_; } has_sse41()46 bool has_sse41() const { return has_sse41_; } has_sse42()47 bool has_sse42() const { return has_sse42_; } has_popcnt()48 bool has_popcnt() const { return has_popcnt_; } has_avx()49 bool has_avx() const { return has_avx_; } has_avx2()50 bool has_avx2() const { return has_avx2_; } has_aesni()51 bool has_aesni() const { return has_aesni_; } has_non_stop_time_stamp_counter()52 bool has_non_stop_time_stamp_counter() const { 53 return has_non_stop_time_stamp_counter_; 54 } 55 56 IntelMicroArchitecture GetIntelMicroArchitecture() const; cpu_brand()57 const std::string& cpu_brand() const { return cpu_brand_; } 58 59 private: 60 // Query the processor for CPUID information. 61 void Initialize(); 62 63 int signature_; // raw form of type, family, model, and stepping 64 int type_; // process type 65 int family_; // family of the processor 66 int model_; // model of processor 67 int stepping_; // processor revision number 68 int ext_model_; 69 int ext_family_; 70 bool has_mmx_; 71 bool has_sse_; 72 bool has_sse2_; 73 bool has_sse3_; 74 bool has_ssse3_; 75 bool has_sse41_; 76 bool has_sse42_; 77 bool has_popcnt_; 78 bool has_avx_; 79 bool has_avx2_; 80 bool has_aesni_; 81 bool has_non_stop_time_stamp_counter_; 82 std::string cpu_vendor_; 83 std::string cpu_brand_; 84 }; 85 86 } // namespace base 87 88 #endif // BASE_CPU_H_ 89