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377 lines
6.7 KiB
377 lines
6.7 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: |
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// |
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// $NoKeywords: $ |
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// |
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//=============================================================================// |
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#ifndef IA32DETECT_H |
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#define IA32DETECT_H |
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#ifdef PLATFORM_WINDOWS_PC |
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#include <intrin.h> |
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#endif |
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/* |
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This section from http://iss.cs.cornell.edu/ia32.htm |
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*/ |
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typedef unsigned bit; |
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enum CPUVendor |
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{ |
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INTEL, |
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AMD, |
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UNKNOWN_VENDOR |
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}; |
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class ia32detect |
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{ |
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public: |
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enum type_t |
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{ |
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type_OEM, |
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type_OverDrive, |
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type_Dual, |
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type_reserved |
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}; |
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enum brand_t |
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{ |
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brand_na, |
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brand_Celeron, |
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brand_PentiumIII, |
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brand_PentiumIIIXeon, |
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brand_reserved1, |
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brand_reserved2, |
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brand_PentiumIIIMobile, |
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brand_reserved3, |
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brand_Pentium4, |
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brand_invalid |
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}; |
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# pragma pack(push, 1) |
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struct version_t |
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{ |
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bit Stepping : 4; |
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bit Model : 4; |
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bit Family : 4; |
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bit Type : 2; |
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bit Reserved1 : 2; |
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bit XModel : 4; |
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bit XFamily : 8; |
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bit Reserved2 : 4; |
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}; |
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struct misc_t |
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{ |
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byte Brand; |
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byte CLFLUSH; |
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byte Reserved; |
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byte APICId; |
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}; |
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struct feature_t |
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{ |
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bit FPU : 1; // Floating Point Unit On-Chip |
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bit VME : 1; // Virtual 8086 Mode Enhancements |
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bit DE : 1; // Debugging Extensions |
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bit PSE : 1; // Page Size Extensions |
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bit TSC : 1; // Time Stamp Counter |
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bit MSR : 1; // Model Specific Registers |
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bit PAE : 1; // Physical Address Extension |
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bit MCE : 1; // Machine Check Exception |
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bit CX8 : 1; // CMPXCHG8 Instruction |
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bit APIC : 1; // APIC On-Chip |
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bit Reserved1 : 1; |
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bit SEP : 1; // SYSENTER and SYSEXIT instructions |
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bit MTRR : 1; // Memory Type Range Registers |
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bit PGE : 1; // PTE Global Bit |
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bit MCA : 1; // Machine Check Architecture |
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bit CMOV : 1; // Conditional Move Instructions |
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bit PAT : 1; // Page Attribute Table |
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bit PSE36 : 1; // 32-bit Page Size Extension |
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bit PSN : 1; // Processor Serial Number |
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bit CLFSH : 1; // CLFLUSH Instruction |
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bit Reserved2 : 1; |
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bit DS : 1; // Debug Store |
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bit ACPI : 1; // Thermal Monitor and Software Controlled Clock Facilities |
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bit MMX : 1; // Intel MMX Technology |
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bit FXSR : 1; // FXSAVE and FXRSTOR Instructions |
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bit SSE : 1; // Intel SSE Technology |
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bit SSE2 : 1; // Intel SSE2 Technology |
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bit SS : 1; // Self Snoop |
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bit HTT : 1; // Hyper Threading |
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bit TM : 1; // Thermal Monitor |
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bit Reserved3 : 1; |
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bit PBE : 1; // Pending Brk. EN. |
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}; |
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# pragma pack(pop) |
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tstring vendor_name; |
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CPUVendor vendor; |
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tstring brand; |
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version_t version; |
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misc_t misc; |
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feature_t feature; |
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byte *cache; |
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ia32detect () |
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{ |
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cache = 0; |
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uint32 m = init0(); |
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uint32 *d = new uint32[m * 4]; |
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for (uint32 i = 1; i <= m; i++) |
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{ |
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#ifdef COMPILER_MSVC64 |
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__cpuid((int *) (d + (i-1) * 4), i); |
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#else |
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uint32 *t = d + (i - 1) * 4; |
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__asm |
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{ |
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mov eax, i; |
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mov esi, t; |
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cpuid; |
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mov dword ptr [esi + 0x0], eax; |
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mov dword ptr [esi + 0x4], ebx; |
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mov dword ptr [esi + 0x8], ecx; |
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mov dword ptr [esi + 0xC], edx; |
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} |
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#endif |
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} |
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if (m >= 1) |
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init1(d); |
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if (m >= 2) |
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init2(d[4] & 0xFF); |
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delete [] d; |
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init0x80000000(); |
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//----------------------------------------------------------------------- |
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// Get the vendor of the processor |
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//----------------------------------------------------------------------- |
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if (_tcscmp(vendor_name.c_str(), _T("GenuineIntel")) == 0) |
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{ |
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vendor = INTEL; |
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} |
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else if (_tcscmp(vendor_name.c_str(), _T("AuthenticAMD")) == 0) |
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{ |
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vendor = AMD; |
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} |
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else |
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{ |
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vendor = UNKNOWN_VENDOR; |
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} |
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} |
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const tstring version_text () const |
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{ |
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tchar b[128]; |
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_stprintf(b, _T("%d.%d.%d %s XVersion(%d.%d)"), |
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version.Family, version.Model, version.Stepping, type_text(), version.XFamily, version.XModel); |
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return tstring(b); |
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} |
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protected: |
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const tchar * type_text () const |
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{ |
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static const tchar *text[] = |
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{ |
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_T("Intel OEM Processor"), |
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_T("Intel OverDrive(R) Processor"), |
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_T("Intel Dual Processor"), |
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_T("reserved") |
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}; |
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return text[version.Type]; |
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} |
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const tstring brand_text () const |
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{ |
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static const tchar *text[] = |
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{ |
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_T("n/a"), |
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_T("Celeron"), |
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_T("Pentium III"), |
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_T("Pentium III Xeon"), |
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_T("reserved (4)"), |
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_T("reserved (5)"), |
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_T("Pentium III Mobile"), |
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_T("reserved (7)"), |
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_T("Pentium 4") |
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}; |
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if (misc.Brand < brand_invalid) |
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return tstring(text[misc.Brand]); |
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else |
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{ |
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tchar b[32]; |
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_stprintf(b, _T("Brand %d (Update)"), misc.Brand); |
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return tstring(b); |
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} |
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} |
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private: |
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uint32 init0 () |
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{ |
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uint32 m; |
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int data[4 + 1]; |
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tchar * s1; |
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s1 = (tchar *) &data[1]; |
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__cpuid(data, 0); |
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data[4] = 0; |
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// Returns something like this: |
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// data[0] = 0x0000000b |
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// data[1] = 0x756e6547 Genu |
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// data[2] = 0x6c65746e ntel |
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// data[3] = 0x49656e69 ineI |
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// data[4] = 0x00000000 |
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m = data[0]; |
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int t = data[2]; |
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data[2] = data[3]; |
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data[3] = t; |
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vendor_name = s1; |
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return m; |
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} |
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void init1 (uint32 *d) |
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{ |
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version = *(version_t *)&d[0]; |
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misc = *(misc_t *)&d[1]; |
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feature = *(feature_t *)&d[3]; |
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} |
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void process2 (uint32 d, bool c[]) |
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{ |
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if ((d & 0x80000000) == 0) |
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for (int i = 0; i < 32; i += 8) |
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c[(d >> i) & 0xFF] = true; |
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} |
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void init2 (byte count) |
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{ |
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uint32 d[4]; |
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bool c[256]; |
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for (int ci1 = 0; ci1 < 256; ci1++) |
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c[ci1] = false; |
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for (int i = 0; i < count; i++) |
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{ |
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#ifdef COMPILER_MSVC64 |
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__cpuid((int *) d, 2); |
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#else |
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__asm |
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{ |
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mov eax, 2; |
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lea esi, d; |
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cpuid; |
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mov [esi + 0x0], eax; |
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mov [esi + 0x4], ebx; |
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mov [esi + 0x8], ecx; |
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mov [esi + 0xC], edx; |
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} |
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#endif |
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if (i == 0) |
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d[0] &= 0xFFFFFF00; |
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process2(d[0], c); |
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process2(d[1], c); |
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process2(d[2], c); |
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process2(d[3], c); |
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} |
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int m = 0; |
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for (int ci2 = 0; ci2 < 256; ci2++) |
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if (c[ci2]) |
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m++; |
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cache = new byte[m]; |
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m = 0; |
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for (int ci3 = 1; ci3 < 256; ci3++) |
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if (c[ci3]) |
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cache[m++] = ci3; |
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cache[m] = 0; |
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} |
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void init0x80000000 () |
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{ |
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uint32 m; |
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#ifdef COMPILER_MSVC64 |
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int data[4]; |
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__cpuid(data, 0x80000000); |
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m = data[0]; |
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#else |
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__asm |
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{ |
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mov eax, 0x80000000; |
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cpuid; |
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mov m, eax |
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} |
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#endif |
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if ((m & 0x80000000) != 0) |
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{ |
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uint32 *d = new uint32[(m - 0x80000000) * 4]; |
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for (uint32 i = 0x80000001; i <= m; i++) |
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{ |
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uint32 *t = d + (i - 0x80000001) * 4; |
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#ifdef COMPILER_MSVC64 |
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__cpuid((int *) (d + (i - 0x80000001) * 4), i); |
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#else |
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__asm |
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{ |
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mov eax, i; |
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mov esi, t; |
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cpuid; |
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mov dword ptr [esi + 0x0], eax; |
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mov dword ptr [esi + 0x4], ebx; |
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mov dword ptr [esi + 0x8], ecx; |
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mov dword ptr [esi + 0xC], edx; |
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} |
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#endif |
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} |
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if (m >= 0x80000002) |
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brand = (tchar *)(d + 4); |
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// note the assignment to brand above does a copy, we need to delete |
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delete[] d; |
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} |
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} |
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}; |
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#endif // IA32DETECT_H
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