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/*
* Copyright (C) 2022 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/metrics/metric_ip_sampling_streamer.h"
#include "level_zero/core/source/device/device.h"
#include "level_zero/tools/source/metrics/metric.h"
#include "level_zero/tools/source/metrics/metric_ip_sampling_source.h"
#include "level_zero/tools/source/metrics/os_metric_ip_sampling.h"
#include <level_zero/zet_api.h>
namespace L0 {
void IpSamplingMetricStreamerBase::attachEvent(ze_event_handle_t hNotificationEvent) {
// Associate notification event with metric streamer.
pNotificationEvent = Event::fromHandle(hNotificationEvent);
if (pNotificationEvent != nullptr) {
pNotificationEvent->metricStreamer = this;
}
}
void IpSamplingMetricStreamerBase::detachEvent() {
// Release notification event.
if (pNotificationEvent != nullptr) {
pNotificationEvent->metricStreamer = nullptr;
}
}
ze_result_t IpSamplingMetricGroupImp::streamerOpen(
zet_context_handle_t hContext,
zet_device_handle_t hDevice,
zet_metric_streamer_desc_t *desc,
ze_event_handle_t hNotificationEvent,
zet_metric_streamer_handle_t *phMetricStreamer) {
auto device = Device::fromHandle(hDevice);
// Check whether metric group is activated.
if (!device->getMetricDeviceContext().isMetricGroupActivated(this->toHandle())) {
return ZE_RESULT_NOT_READY;
}
// Check whether metric streamer is already open.
if (metricSource.pActiveStreamer != nullptr) {
return ZE_RESULT_ERROR_HANDLE_OBJECT_IN_USE;
}
auto pStreamerImp = new IpSamplingMetricStreamerImp(metricSource);
UNRECOVERABLE_IF(pStreamerImp == nullptr);
const ze_result_t result = metricSource.getMetricOsInterface()->startMeasurement(desc->notifyEveryNReports, desc->samplingPeriod);
if (result == ZE_RESULT_SUCCESS) {
metricSource.pActiveStreamer = pStreamerImp;
pStreamerImp->attachEvent(hNotificationEvent);
} else {
delete pStreamerImp;
pStreamerImp = nullptr;
return result;
}
*phMetricStreamer = pStreamerImp->toHandle();
return ZE_RESULT_SUCCESS;
}
ze_result_t IpSamplingMetricStreamerImp::readData(uint32_t maxReportCount, size_t *pRawDataSize, uint8_t *pRawData) {
// Return required size if requested.
if (*pRawDataSize == 0) {
*pRawDataSize = ipSamplingSource.getMetricOsInterface()->getRequiredBufferSize(maxReportCount);
return ZE_RESULT_SUCCESS;
}
// If there is a difference in pRawDataSize and maxReportCount, use the minimum value for reading.
if (maxReportCount != UINT32_MAX) {
size_t maxSizeRequired = ipSamplingSource.getMetricOsInterface()->getRequiredBufferSize(maxReportCount);
*pRawDataSize = std::min(maxSizeRequired, *pRawDataSize);
}
return ipSamplingSource.getMetricOsInterface()->readData(pRawData, pRawDataSize);
}
ze_result_t IpSamplingMetricStreamerImp::close() {
const ze_result_t result = ipSamplingSource.getMetricOsInterface()->stopMeasurement();
detachEvent();
ipSamplingSource.pActiveStreamer = nullptr;
delete this;
return result;
}
Event::State IpSamplingMetricStreamerImp::getNotificationState() {
return ipSamplingSource.getMetricOsInterface()->isNReportsAvailable()
? Event::State::STATE_SIGNALED
: Event::State::STATE_INITIAL;
}
ze_result_t MultiDeviceIpSamplingMetricGroupImp::streamerOpen(
zet_context_handle_t hContext,
zet_device_handle_t hDevice,
zet_metric_streamer_desc_t *desc,
ze_event_handle_t hNotificationEvent,
zet_metric_streamer_handle_t *phMetricStreamer) {
ze_result_t result = ZE_RESULT_SUCCESS;
std::vector<IpSamplingMetricStreamerImp *> subDeviceStreamers = {};
subDeviceStreamers.reserve(subDeviceMetricGroup.size());
// Open SubDevice Streamers
for (auto &metricGroup : subDeviceMetricGroup) {
zet_metric_streamer_handle_t subDeviceMetricStreamer = {};
zet_device_handle_t hSubDevice = metricGroup->getMetricSource().getMetricDeviceContext().getDevice().toHandle();
result = metricGroup->streamerOpen(hContext, hSubDevice, desc, nullptr, &subDeviceMetricStreamer);
if (result != ZE_RESULT_SUCCESS) {
closeSubDeviceStreamers(subDeviceStreamers);
return result;
}
subDeviceStreamers.push_back(static_cast<IpSamplingMetricStreamerImp *>(MetricStreamer::fromHandle(subDeviceMetricStreamer)));
}
auto pStreamerImp = new MultiDeviceIpSamplingMetricStreamerImp(subDeviceStreamers);
UNRECOVERABLE_IF(pStreamerImp == nullptr);
pStreamerImp->attachEvent(hNotificationEvent);
*phMetricStreamer = pStreamerImp->toHandle();
return result;
}
ze_result_t MultiDeviceIpSamplingMetricStreamerImp::readData(uint32_t maxReportCount, size_t *pRawDataSize, uint8_t *pRawData) {
if (*pRawDataSize == 0) {
return subDeviceStreamers[0]->readData(maxReportCount, pRawDataSize, pRawData);
}
// Find single report size
size_t singleReportSize = 0;
subDeviceStreamers[0]->readData(1, &singleReportSize, nullptr);
size_t calcRawDataSize = *pRawDataSize;
// Recalculate maximum possible report count for the raw data size
calcRawDataSize = std::min(calcRawDataSize, singleReportSize * maxReportCount);
maxReportCount = static_cast<uint32_t>(calcRawDataSize / singleReportSize);
uint8_t *pCurrRawData = pRawData;
size_t currRawDataSize = calcRawDataSize;
ze_result_t result = ZE_RESULT_SUCCESS;
for (auto &streamer : subDeviceStreamers) {
result = streamer->readData(maxReportCount, &currRawDataSize, pCurrRawData);
if (result != ZE_RESULT_SUCCESS) {
return result;
}
calcRawDataSize -= currRawDataSize;
pCurrRawData += currRawDataSize;
// Check whether memory available for next read
if (calcRawDataSize < singleReportSize) {
break;
}
maxReportCount -= static_cast<uint32_t>(currRawDataSize / singleReportSize);
currRawDataSize = calcRawDataSize;
}
*pRawDataSize = pCurrRawData - pRawData;
return result;
}
ze_result_t MultiDeviceIpSamplingMetricStreamerImp::close() {
ze_result_t result = ZE_RESULT_SUCCESS;
for (auto &streamer : subDeviceStreamers) {
result = streamer->close();
if (result != ZE_RESULT_SUCCESS) {
break;
}
}
subDeviceStreamers.clear();
detachEvent();
delete this;
return result;
}
Event::State MultiDeviceIpSamplingMetricStreamerImp::getNotificationState() {
Event::State state = Event::State::STATE_INITIAL;
for (auto &streamer : subDeviceStreamers) {
state = streamer->getNotificationState();
if (state == Event::State::STATE_SIGNALED) {
break;
}
}
return state;
}
} // namespace L0
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