michael@0: // Copyright (c) 2012 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #ifndef BASE_CPU_H_
michael@0: #define BASE_CPU_H_
michael@0: 
michael@0: #include <string>
michael@0: 
michael@0: #include "base/base_export.h"
michael@0: 
michael@0: namespace base {
michael@0: 
michael@0: // Query information about the processor.
michael@0: class BASE_EXPORT CPU {
michael@0:  public:
michael@0:   // Constructor
michael@0:   CPU();
michael@0: 
michael@0:   enum IntelMicroArchitecture {
michael@0:     PENTIUM,
michael@0:     SSE,
michael@0:     SSE2,
michael@0:     SSE3,
michael@0:     SSSE3,
michael@0:     SSE41,
michael@0:     SSE42,
michael@0:     AVX,
michael@0:     MAX_INTEL_MICRO_ARCHITECTURE
michael@0:   };
michael@0: 
michael@0:   // Accessors for CPU information.
michael@0:   const std::string& vendor_name() const { return cpu_vendor_; }
michael@0:   int signature() const { return signature_; }
michael@0:   int stepping() const { return stepping_; }
michael@0:   int model() const { return model_; }
michael@0:   int family() const { return family_; }
michael@0:   int type() const { return type_; }
michael@0:   int extended_model() const { return ext_model_; }
michael@0:   int extended_family() const { return ext_family_; }
michael@0:   bool has_mmx() const { return has_mmx_; }
michael@0:   bool has_sse() const { return has_sse_; }
michael@0:   bool has_sse2() const { return has_sse2_; }
michael@0:   bool has_sse3() const { return has_sse3_; }
michael@0:   bool has_ssse3() const { return has_ssse3_; }
michael@0:   bool has_sse41() const { return has_sse41_; }
michael@0:   bool has_sse42() const { return has_sse42_; }
michael@0:   bool has_avx() const { return has_avx_; }
michael@0:   bool has_non_stop_time_stamp_counter() const {
michael@0:     return has_non_stop_time_stamp_counter_;
michael@0:   }
michael@0:   IntelMicroArchitecture GetIntelMicroArchitecture() const;
michael@0:   const std::string& cpu_brand() const { return cpu_brand_; }
michael@0: 
michael@0:  private:
michael@0:   // Query the processor for CPUID information.
michael@0:   void Initialize();
michael@0: 
michael@0:   int signature_;  // raw form of type, family, model, and stepping
michael@0:   int type_;  // process type
michael@0:   int family_;  // family of the processor
michael@0:   int model_;  // model of processor
michael@0:   int stepping_;  // processor revision number
michael@0:   int ext_model_;
michael@0:   int ext_family_;
michael@0:   bool has_mmx_;
michael@0:   bool has_sse_;
michael@0:   bool has_sse2_;
michael@0:   bool has_sse3_;
michael@0:   bool has_ssse3_;
michael@0:   bool has_sse41_;
michael@0:   bool has_sse42_;
michael@0:   bool has_avx_;
michael@0:   bool has_non_stop_time_stamp_counter_;
michael@0:   std::string cpu_vendor_;
michael@0:   std::string cpu_brand_;
michael@0: };
michael@0: 
michael@0: }  // namespace base
michael@0: 
michael@0: #endif  // BASE_CPU_H_