mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2025-07-21 05:09:34 -06:00
Initial megacommit.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
hrydgard
246
Source/Core/Common/Src/CPUDetect.cpp
Normal file
246
Source/Core/Common/Src/CPUDetect.cpp
Normal file
@ -0,0 +1,246 @@
|
||||
// Copyright (C) 2003-2008 Dolphin Project.
|
||||
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, version 2.0.
|
||||
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License 2.0 for more details.
|
||||
|
||||
// A copy of the GPL 2.0 should have been included with the program.
|
||||
// If not, see http://www.gnu.org/licenses/
|
||||
|
||||
// Official SVN repository and contact information can be found at
|
||||
// http://code.google.com/p/dolphin-emu/
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <intrin.h>
|
||||
#endif
|
||||
|
||||
#ifdef __linux__
|
||||
//#include <config/i386/cpuid.h>
|
||||
#include <xmmintrin.h>
|
||||
void __cpuid(int info[4], int x) {}
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
#include <memory.h>
|
||||
|
||||
#include "Common.h"
|
||||
#include "CPUDetect.h"
|
||||
|
||||
// This code was adapted from an example in MSDN:
|
||||
CPUInfoStruct cpu_info;
|
||||
|
||||
void CPUInfoStruct::Detect()
|
||||
{
|
||||
#ifdef _M_IX86
|
||||
Mode64bit = false;
|
||||
#elif defined (_M_X64)
|
||||
Mode64bit = true;
|
||||
OS64bit = true;
|
||||
#endif
|
||||
numCores = 1;
|
||||
|
||||
#ifdef _WIN32
|
||||
#ifdef _M_IX86
|
||||
BOOL f64 = FALSE;
|
||||
OS64bit = IsWow64Process(GetCurrentProcess(), &f64) && f64;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
// __cpuid with an InfoType argument of 0 returns the number of
|
||||
// valid Ids in CPUInfo[0] and the CPU identification string in
|
||||
// the other three array elements. The CPU identification string is
|
||||
// not in linear order. The code below arranges the information
|
||||
// in a human readable form.
|
||||
__cpuid(CPUInfo, 0);
|
||||
nIds = CPUInfo[0];
|
||||
memset(CPUString, 0, sizeof(CPUString));
|
||||
*((int*)CPUString) = CPUInfo[1];
|
||||
*((int*)(CPUString + 4)) = CPUInfo[3];
|
||||
*((int*)(CPUString + 8)) = CPUInfo[2];
|
||||
|
||||
// Assume that everything non-intel is AMD
|
||||
if (memcmp(CPUString, "GenuineIntel", 12) == 0)
|
||||
{
|
||||
isAMD = false;
|
||||
}
|
||||
else
|
||||
{
|
||||
isAMD = true;
|
||||
}
|
||||
|
||||
// Get the information associated with each valid Id
|
||||
for (unsigned int i = 0; i <= nIds; ++i)
|
||||
{
|
||||
__cpuid(CPUInfo, i);
|
||||
|
||||
// Interpret CPU feature information.
|
||||
if (i == 1)
|
||||
{
|
||||
nSteppingID = CPUInfo[0] & 0xf;
|
||||
nModel = (CPUInfo[0] >> 4) & 0xf;
|
||||
nFamily = (CPUInfo[0] >> 8) & 0xf;
|
||||
nProcessorType = (CPUInfo[0] >> 12) & 0x3;
|
||||
nExtendedmodel = (CPUInfo[0] >> 16) & 0xf;
|
||||
nExtendedfamily = (CPUInfo[0] >> 20) & 0xff;
|
||||
nBrandIndex = CPUInfo[1] & 0xff;
|
||||
nCLFLUSHcachelinesize = ((CPUInfo[1] >> 8) & 0xff) * 8;
|
||||
nAPICPhysicalID = (CPUInfo[1] >> 24) & 0xff;
|
||||
bSSE3NewInstructions = (CPUInfo[2] & 0x1) || false;
|
||||
bMONITOR_MWAIT = (CPUInfo[2] & 0x8) || false;
|
||||
bCPLQualifiedDebugStore = (CPUInfo[2] & 0x10) || false;
|
||||
bThermalMonitor2 = (CPUInfo[2] & 0x100) || false;
|
||||
nFeatureInfo = CPUInfo[3];
|
||||
|
||||
if (CPUInfo[2] & (1 << 23))
|
||||
{
|
||||
bPOPCNT = true;
|
||||
}
|
||||
|
||||
if (CPUInfo[2] & (1 << 19))
|
||||
{
|
||||
bSSE4_1 = true;
|
||||
}
|
||||
|
||||
if (CPUInfo[2] & (1 << 20))
|
||||
{
|
||||
bSSE4_2 = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Calling __cpuid with 0x80000000 as the InfoType argument
|
||||
// gets the number of valid extended IDs.
|
||||
__cpuid(CPUInfo, 0x80000000);
|
||||
nExIds = CPUInfo[0];
|
||||
memset(CPUBrandString, 0, sizeof(CPUBrandString));
|
||||
|
||||
// Get the information associated with each extended ID.
|
||||
for (unsigned int i = 0x80000000; i <= nExIds; ++i)
|
||||
{
|
||||
__cpuid(CPUInfo, i);
|
||||
|
||||
// Interpret CPU brand string and cache information.
|
||||
if (i == 0x80000001)
|
||||
{
|
||||
nFeatureInfo2 = CPUInfo[1]; // ECX
|
||||
bSSE5 = (nFeatureInfo2 & (1 << 11)) ? true : false;
|
||||
bLZCNT = (nFeatureInfo2 & (1 << 5)) ? true : false;
|
||||
bSSE4A = (nFeatureInfo2 & (1 << 6)) ? true : false;
|
||||
bLAHFSAHF64 = (nFeatureInfo2 & (1 << 0)) ? true : false;
|
||||
|
||||
CPU64bit = (CPUInfo[2] & (1 << 29)) ? true : false;
|
||||
}
|
||||
else if (i == 0x80000002)
|
||||
{
|
||||
memcpy(CPUBrandString, CPUInfo, sizeof(CPUInfo));
|
||||
}
|
||||
else if (i == 0x80000003)
|
||||
{
|
||||
memcpy(CPUBrandString + 16, CPUInfo, sizeof(CPUInfo));
|
||||
}
|
||||
else if (i == 0x80000004)
|
||||
{
|
||||
memcpy(CPUBrandString + 32, CPUInfo, sizeof(CPUInfo));
|
||||
}
|
||||
else if (i == 0x80000006)
|
||||
{
|
||||
nCacheLineSize = CPUInfo[2] & 0xff;
|
||||
nL2Associativity = (CPUInfo[2] >> 12) & 0xf;
|
||||
nCacheSizeK = (CPUInfo[2] >> 16) & 0xffff;
|
||||
}
|
||||
else if (i == 0x80000008)
|
||||
{
|
||||
int numLSB = (CPUInfo[2] >> 12) & 0xF;
|
||||
numCores = 1 << numLSB;
|
||||
//int coresPerDie = CPUInfo[2] & 0xFF;
|
||||
// numCores = coresPerDie;
|
||||
}
|
||||
}
|
||||
|
||||
// Display all the information in user-friendly format.
|
||||
// printf_s("\n\nCPU String: %s\n", CPUString);
|
||||
|
||||
if (nIds < 1)
|
||||
{
|
||||
bOldCPU = true;
|
||||
}
|
||||
|
||||
nIds = 1;
|
||||
bx87FPUOnChip = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bVirtual_8086ModeEnhancement = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bDebuggingExtensions = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bPageSizeExtensions = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bTimeStampCounter = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bRDMSRandWRMSRSupport = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bPhysicalAddressExtensions = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bMachineCheckException = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bCMPXCHG8BInstruction = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bAPICOnChip = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bUnknown1 = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bSYSENTERandSYSEXIT = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bMemoryTypeRangeRegisters = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bPTEGlobalBit = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bMachineCheckArchitecture = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bConditionalMove_CompareInstruction = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bPageAttributeTable = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bPageSizeExtension = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bProcessorSerialNumber = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bCFLUSHExtension = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bUnknown2 = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bDebugStore = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bThermalMonitorandClockCtrl = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bMMXTechnology = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bFXSAVE_FXRSTOR = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bSSEExtensions = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bSSE2Extensions = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bSelfSnoop = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bHyper_threadingTechnology = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bThermalMonitor = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bUnknown4 = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
bPendBrkEN = (nFeatureInfo & nIds) ? true : false;
|
||||
nIds <<= 1;
|
||||
|
||||
if (nExIds < 0x80000004)
|
||||
{
|
||||
strcpy(CPUBrandString, "(unknown)");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user