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