mirror of
https://github.com/PCSX2/pcsx2.git
synced 2025-04-02 10:52:54 -04:00
13dfceff48
* common: format AlignedMalloc.cpp * common: format AppTrait.h * common: format Assertions.h * common: format CheckedStaticBox * common: format Console * common: format Dependencies.h * common: format EmbeddedImage * common: format EventSource * common: format Exceptions * common: format FastFormatString.cpp * common: format General.h * common: format InitInterface * common: format MathUtils.h * common: format MemsetFast/MemcpyFast * common: format Mutex.cpp * common: format PageFaultSource.h * common: format Path.h * common: format PathUtils.cpp * common: format Pcsx2Types.h * common: format Perf * common: format PersistentThread.h * common: format RwMutex * common: format SafeArray * common: format ScopedAlloc.h * common: format ScopedPtrMT.h * common: format Semaphore.cpp * common: format StringHelpers * common: format ThreadTools.cpp * common: format Threading.h * common: format ThreadingDialogs * common: format ThreadingInternal.h * common: format TraceLog.h * common: format VirtualMemory.cpp * common: format pxCheckBox * common: format pxEvents.h * common: format pxForwardDefs.h * common: format pxRadioPanel * common: format pxStaticText * common: format pxStreams * common: format pxTranslate.cpp * common: format pxWindowTextWriter.cpp * common: format wxAppWithHelpers * common: format wxBaseTools.h * common: format wxGuiTools * common: format wxHelpers.cpp * common: format Darwin directory * common: format Linux directory * common: format Windows directory * common: format LnxCpuDetect.cpp * common: format WinCpuDetect.cpp * common: format bmi.cpp * common: format cpudetect.cpp * common: format cpu_detect_internal.h * common: format fpu.cpp * common: format groups.cpp * common: format instructions.h * common: format internal.h * common: format jmp.cpp * common: format legacy.cpp * common: format legacy_instructions.h * common: format legacy_internal.h * common: format movs.cpp * common: format simd.cpp * common: format tools.h * common: format x86emitter.cpp * common: format x86types.h * common: format bmi.h * common: format dwshift.h * common: format group1.h group2.h group3.h * common: format incdec.h * common: format jmpcall.h * common: format movs.h * common: format simd_arithmetic.h * common: format simd_comparisons.h * common: format simd_helpers.h * common: format simd_moremovs.h * common: format simd_shufflepack.h * common: format simd_templated_helpers.h * common: format test.h
85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
/* Cpudetection lib
|
|
* Copyright (C) 2002-2016 PCSX2 Dev Team
|
|
*
|
|
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
|
|
* of the GNU Lesser General Public License as published by the Free Software Found-
|
|
* ation, either version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* PCSX2 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 for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with PCSX2.
|
|
* If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#if defined(_WIN32)
|
|
|
|
#include "common/Console.h"
|
|
#include "common/emitter/cpudetect_internal.h"
|
|
|
|
void x86capabilities::CountLogicalCores()
|
|
{
|
|
DWORD_PTR vProcessCPUs;
|
|
DWORD_PTR vSystemCPUs;
|
|
|
|
LogicalCores = 1;
|
|
|
|
if (!GetProcessAffinityMask(GetCurrentProcess(), &vProcessCPUs, &vSystemCPUs))
|
|
return;
|
|
|
|
uint CPUs = 0;
|
|
for (DWORD_PTR bit = 1; bit != 0; bit <<= 1)
|
|
if (vSystemCPUs & bit)
|
|
CPUs++;
|
|
|
|
LogicalCores = CPUs;
|
|
}
|
|
|
|
SingleCoreAffinity::SingleCoreAffinity()
|
|
{
|
|
s_threadId = nullptr;
|
|
s_oldmask = ERROR_INVALID_PARAMETER;
|
|
|
|
DWORD_PTR availProcCpus;
|
|
DWORD_PTR availSysCpus;
|
|
if (!GetProcessAffinityMask(GetCurrentProcess(), &availProcCpus, &availSysCpus))
|
|
return;
|
|
|
|
int cpu = 0;
|
|
DWORD_PTR affinityMask;
|
|
for (affinityMask = 1; affinityMask != 0; affinityMask <<= 1, ++cpu)
|
|
if (availProcCpus & affinityMask)
|
|
break;
|
|
|
|
s_threadId = GetCurrentThread();
|
|
s_oldmask = SetThreadAffinityMask(s_threadId, affinityMask);
|
|
|
|
if (s_oldmask == ERROR_INVALID_PARAMETER)
|
|
{
|
|
const int hexWidth = 2 * sizeof(DWORD_PTR);
|
|
Console.Warning(
|
|
"CpuDetect: SetThreadAffinityMask failed...\n"
|
|
"\tSystem Affinity : 0x%0*x\n"
|
|
"\tProcess Affinity: 0x%0*x\n"
|
|
"\tAttempted Thread Affinity CPU: %i",
|
|
hexWidth, availProcCpus, hexWidth, availSysCpus, cpu);
|
|
}
|
|
|
|
Sleep(2);
|
|
|
|
// Sleep Explained: I arbitrarily pick Core 0 to lock to for running the CPU test. This
|
|
// means that the current thread will need to be switched to Core 0 if it's currently
|
|
// scheduled on a difference cpu/core. However, Windows does not necessarily perform
|
|
// that scheduling immediately upon the call to SetThreadAffinityMask (seems dependent
|
|
// on version: XP does, Win7 does not). So by issuing a Sleep here we give Win7 time
|
|
// to issue a timeslice and move our thread to Core 0. Without this, it tends to move
|
|
// the thread during the cpuSpeed test instead, causing totally wacky results.
|
|
};
|
|
|
|
SingleCoreAffinity::~SingleCoreAffinity()
|
|
{
|
|
if (s_oldmask != ERROR_INVALID_PARAMETER)
|
|
SetThreadAffinityMask(s_threadId, s_oldmask);
|
|
}
|
|
#endif
|