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/**
* @file llprocessor.h
* @brief Code to figure out the processor. Originally by Benjamin Jurke.
*
* $LicenseInfo:firstyear=2002&license=viewergpl$
*
* Copyright (c) 2002-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
// Author: Benjamin Jurke
// File history: 27.02.2002 File created.
///////////////////////////////////////////
#ifndef LLPROCESSOR_H
#define LLPROCESSOR_H
// Options:
///////////
#if LL_WINDOWS
#define PROCESSOR_FREQUENCY_MEASURE_AVAILABLE
#endif
#if LL_MSVC && _M_X64
# define LL_X86_64 1
# define LL_X86 1
#elif LL_MSVC && _M_IX86
# define LL_X86 1
#elif LL_GNUC && ( defined(__amd64__) || defined(__x86_64__) )
# define LL_X86_64 1
# define LL_X86 1
#elif LL_GNUC && ( defined(__i386__) )
# define LL_X86 1
#elif LL_GNUC && ( defined(__powerpc__) || defined(__ppc__) )
# define LL_PPC 1
#endif
struct ProcessorExtensions
{
bool FPU_FloatingPointUnit;
bool VME_Virtual8086ModeEnhancements;
bool DE_DebuggingExtensions;
bool PSE_PageSizeExtensions;
bool TSC_TimeStampCounter;
bool MSR_ModelSpecificRegisters;
bool PAE_PhysicalAddressExtension;
bool MCE_MachineCheckException;
bool CX8_COMPXCHG8B_Instruction;
bool APIC_AdvancedProgrammableInterruptController;
unsigned int APIC_ID;
bool SEP_FastSystemCall;
bool MTRR_MemoryTypeRangeRegisters;
bool PGE_PTE_GlobalFlag;
bool MCA_MachineCheckArchitecture;
bool CMOV_ConditionalMoveAndCompareInstructions;
bool FGPAT_PageAttributeTable;
bool PSE36_36bitPageSizeExtension;
bool PN_ProcessorSerialNumber;
bool CLFSH_CFLUSH_Instruction;
unsigned int CLFLUSH_InstructionCacheLineSize;
bool DS_DebugStore;
bool ACPI_ThermalMonitorAndClockControl;
bool EMMX_MultimediaExtensions;
bool MMX_MultimediaExtensions;
bool FXSR_FastStreamingSIMD_ExtensionsSaveRestore;
bool SSE_StreamingSIMD_Extensions;
bool SSE2_StreamingSIMD2_Extensions;
bool Altivec_Extensions;
bool SS_SelfSnoop;
bool HT_HyperThreading;
unsigned int HT_HyterThreadingSiblings;
bool TM_ThermalMonitor;
bool IA64_Intel64BitArchitecture;
bool _3DNOW_InstructionExtensions;
bool _E3DNOW_InstructionExtensions;
bool AA64_AMD64BitArchitecture;
};
struct ProcessorCache
{
bool bPresent;
char strSize[32]; /* Flawfinder: ignore */
unsigned int uiAssociativeWays;
unsigned int uiLineSize;
bool bSectored;
char strCache[128]; /* Flawfinder: ignore */
};
struct ProcessorL1Cache
{
ProcessorCache Instruction;
ProcessorCache Data;
};
struct ProcessorTLB
{
bool bPresent;
char strPageSize[32]; /* Flawfinder: ignore */
unsigned int uiAssociativeWays;
unsigned int uiEntries;
char strTLB[128]; /* Flawfinder: ignore */
};
struct ProcessorInfo
{
char strVendor[16]; /* Flawfinder: ignore */
unsigned int uiFamily;
unsigned int uiExtendedFamily;
char strFamily[64]; /* Flawfinder: ignore */
unsigned int uiModel;
unsigned int uiExtendedModel;
char strModel[128]; /* Flawfinder: ignore */
unsigned int uiStepping;
unsigned int uiType;
char strType[64]; /* Flawfinder: ignore */
unsigned int uiBrandID;
char strBrandID[64]; /* Flawfinder: ignore */
char strProcessorSerial[64]; /* Flawfinder: ignore */
unsigned long MaxSupportedLevel;
unsigned long MaxSupportedExtendedLevel;
ProcessorExtensions _Ext;
ProcessorL1Cache _L1;
ProcessorCache _L2;
ProcessorCache _L3;
ProcessorCache _Trace;
ProcessorTLB _Instruction;
ProcessorTLB _Data;
};
// CProcessor
// ==========
// Class for detecting the processor name, type and available
// extensions as long as it's speed.
/////////////////////////////////////////////////////////////
class CProcessor
{
// Constructor / Destructor:
////////////////////////////
public:
CProcessor();
// Private vars:
////////////////
public:
F64 uqwFrequency;
char strCPUName[128]; /* Flawfinder: ignore */
ProcessorInfo CPUInfo;
// Private functions:
/////////////////////
private:
bool AnalyzeIntelProcessor();
bool AnalyzeAMDProcessor();
bool AnalyzeUnknownProcessor();
bool CheckCPUIDPresence();
void DecodeProcessorConfiguration(unsigned int cfg);
void TranslateProcessorConfiguration();
void GetStandardProcessorConfiguration();
void GetStandardProcessorExtensions();
// Public functions:
////////////////////
public:
F64 GetCPUFrequency(unsigned int uiMeasureMSecs);
const ProcessorInfo *GetCPUInfo();
bool CPUInfoToText(char *strBuffer, unsigned int uiMaxLen);
bool WriteInfoTextFile(const std::string& strFilename);
};
#endif
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