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/*
* Copyright (C) 2018-2021 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/windows/os_time_win.h"
#include "shared/source/os_interface/windows/device_time_wddm.h"
#include "shared/source/os_interface/windows/wddm/wddm.h"
#include <memory>
#undef WIN32_NO_STATUS
namespace NEO {
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> OSTimeWin::create(OSInterface *osInterface) {
return std::unique_ptr<OSTime>(new OSTimeWin(osInterface));
}
OSTimeWin::OSTimeWin(OSInterface *osInterface) {
this->osInterface = osInterface;
Wddm *wddm = osInterface ? osInterface->getDriverModel()->as<Wddm>() : nullptr;
this->deviceTime = std::make_unique<DeviceTimeWddm>(wddm);
QueryPerformanceFrequency(&frequency);
}
double OSTimeWin::getHostTimerResolution() const {
double retValue = 0;
if (frequency.QuadPart) {
retValue = 1e9 / frequency.QuadPart;
}
return retValue;
}
uint64_t OSTimeWin::getCpuRawTimestamp() {
LARGE_INTEGER cpuRawTimestamp = {};
this->QueryPerfomanceCounterFnc(&cpuRawTimestamp);
return cpuRawTimestamp.QuadPart;
}
} // namespace NEO
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