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/*
* Copyright (C) 2017-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/windows/os_time_win.h"
#include "shared/source/os_interface/windows/os_interface.h"
#include "shared/source/os_interface/windows/wddm/wddm.h"
#include <memory>
#undef WIN32_NO_STATUS
namespace NEO {
bool runEscape(Wddm *wddm, TimeStampDataHeader &escapeInfo) {
if (wddm) {
D3DKMT_ESCAPE escapeCommand = {0};
GTDIGetGpuCpuTimestampsIn in = {GTDI_FNC_GET_GPU_CPU_TIMESTAMPS};
uint32_t outSize = sizeof(GTDIGetGpuCpuTimestampsOut);
escapeInfo.m_Header.EscapeCode = GFX_ESCAPE_IGPA_INSTRUMENTATION_CONTROL;
escapeInfo.m_Header.Size = outSize;
escapeInfo.m_Data.m_In = in;
escapeCommand.Flags.Value = 0;
escapeCommand.hAdapter = (D3DKMT_HANDLE)0;
escapeCommand.hContext = (D3DKMT_HANDLE)0; // escape is not context specific
escapeCommand.hDevice = (D3DKMT_HANDLE)wddm->getDevice(); // escape not device specific, passing only for instrumentation
escapeCommand.pPrivateDriverData = &escapeInfo;
escapeCommand.PrivateDriverDataSize = sizeof(escapeInfo);
escapeCommand.Type = D3DKMT_ESCAPE_DRIVERPRIVATE;
auto status = wddm->escape(escapeCommand);
if (status == STATUS_SUCCESS) {
return true;
}
}
return false;
}
bool OSTimeWin::getCpuGpuTime(TimeStampData *pGpuCpuTime) {
bool retVal = false;
pGpuCpuTime->CPUTimeinNS = 0;
pGpuCpuTime->GPUTimeStamp = 0;
TimeStampDataHeader escapeInfo = {0};
if (runEscape(wddm, escapeInfo)) {
double cpuNanoseconds = escapeInfo.m_Data.m_Out.cpuPerfTicks *
(1000000000.0 / escapeInfo.m_Data.m_Out.cpuPerfFreq);
pGpuCpuTime->CPUTimeinNS = (unsigned long long)cpuNanoseconds;
pGpuCpuTime->GPUTimeStamp = (unsigned long long)escapeInfo.m_Data.m_Out.gpuPerfTicks;
retVal = true;
}
return retVal;
}
bool OSTimeWin::getCpuTime(uint64_t *timeStamp) {
uint64_t time;
this->QueryPerfomanceCounterFnc((LARGE_INTEGER *)&time);
*timeStamp = static_cast<uint64_t>((static_cast<double>(time) * NSEC_PER_SEC / frequency.QuadPart));
return true;
};
std::unique_ptr<OSTime> OSTime::create(OSInterface *osInterface) {
return std::unique_ptr<OSTime>(new OSTimeWin(osInterface));
}
OSTimeWin::OSTimeWin(OSInterface *osInterface) {
this->osInterface = osInterface;
if (osInterface) {
wddm = osInterface->get()->getWddm();
}
QueryPerformanceFrequency(&frequency);
}
double OSTimeWin::getHostTimerResolution() const {
double retValue = 0;
if (frequency.QuadPart) {
retValue = 1e9 / frequency.QuadPart;
}
return retValue;
}
double OSTimeWin::getDynamicDeviceTimerResolution(HardwareInfo const &hwInfo) const {
double retVal = 0;
TimeStampDataHeader escapeInfo = {0};
if (runEscape(wddm, escapeInfo)) {
retVal = 1000000000.0 / (double)escapeInfo.m_Data.m_Out.gpuPerfFreq;
}
return retVal;
}
uint64_t OSTimeWin::getCpuRawTimestamp() {
LARGE_INTEGER cpuRawTimestamp = {};
this->QueryPerfomanceCounterFnc(&cpuRawTimestamp);
return cpuRawTimestamp.QuadPart;
}
} // namespace NEO
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