Imported existing code

indra/llcommon/llprocessor.h

@@ -0,0 +1,196 @@
+/** 
+ * @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