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/*
* Copyright (C) 2017-2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#pragma once
#include <memory>
#define NSEC_PER_SEC (1000000000ULL)
namespace NEO {
class OSInterface;
struct HardwareInfo;
struct TimeStampData {
uint64_t GPUTimeStamp; // GPU time in ns
uint64_t CPUTimeinNS; // CPU time in ns
};
class OSTime {
public:
static std::unique_ptr<OSTime> create(OSInterface *osInterface);
virtual ~OSTime() = default;
virtual bool getCpuTime(uint64_t *timeStamp) = 0;
virtual bool getCpuGpuTime(TimeStampData *pGpuCpuTime) = 0;
virtual double getHostTimerResolution() const = 0;
virtual double getDynamicDeviceTimerResolution(HardwareInfo const &hwInfo) const = 0;
virtual uint64_t getCpuRawTimestamp() = 0;
OSInterface *getOSInterface() const {
return osInterface;
}
static double getDeviceTimerResolution(HardwareInfo const &hwInfo);
protected:
OSTime() {}
OSInterface *osInterface = nullptr;
};
} // namespace NEO
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