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/*
* Copyright (C) 2018-2024 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/linux/device_time_drm.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/helpers/register_offsets.h"
#include "shared/source/os_interface/linux/drm_neo.h"
#include "shared/source/os_interface/linux/drm_wrappers.h"
#include "shared/source/os_interface/linux/ioctl_helper.h"
#include "shared/source/os_interface/os_interface.h"
#include <time.h>
namespace NEO {
DeviceTimeDrm::DeviceTimeDrm(OSInterface &osInterface) {
pDrm = osInterface.getDriverModel()->as<Drm>();
}
TimeQueryStatus DeviceTimeDrm::getGpuCpuTimeImpl(TimeStampData *pGpuCpuTime, OSTime *osTime) {
if (!pDrm->getIoctlHelper()->setGpuCpuTimes(pGpuCpuTime, osTime)) {
if (pDrm->getErrno() == EOPNOTSUPP) {
return TimeQueryStatus::unsupportedFeature;
} else {
return TimeQueryStatus::deviceLost;
}
}
return TimeQueryStatus::success;
}
double DeviceTimeDrm::getDynamicDeviceTimerResolution() const {
if (pDrm) {
int frequency = 0;
auto error = pDrm->getTimestampFrequency(frequency);
if (!error) {
return nanosecondsPerSecond / frequency;
}
}
return OSTime::getDeviceTimerResolution();
}
uint64_t DeviceTimeDrm::getDynamicDeviceTimerClock() const {
if (pDrm) {
int frequency = 0;
auto error = pDrm->getTimestampFrequency(frequency);
if (!error) {
return static_cast<uint64_t>(frequency);
}
}
return static_cast<uint64_t>(nanosecondsPerSecond / OSTime::getDeviceTimerResolution());
}
bool DeviceTimeDrm::isTimestampsRefreshEnabled() const {
bool timestampsRefreshEnabled = pDrm->getIoctlHelper()->isTimestampsRefreshEnabled();
if (debugManager.flags.EnableReusingGpuTimestamps.get() != -1) {
timestampsRefreshEnabled = debugManager.flags.EnableReusingGpuTimestamps.get();
}
return timestampsRefreshEnabled;
}
} // namespace NEO
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