Files
compute-runtime/level_zero/tools/source/sysman/performance/performance.cpp
Kulkarni, Ashwin Kumar 137959c647 Defer Sysman Power and Performance Module Initialization
With this change, init for sysman Power/Performance API would
not be done during zeInit.
init and thereby Power/Performance API handle creation would be done
only when user explicitly requests to enumerate handles
using zesDeviceEnumPowerDomains/zesDeviceEnumPerformanceFactorDomains.

Related-To: LOCI-3127

Signed-off-by: Kulkarni, Ashwin Kumar <ashwin.kumar.kulkarni@intel.com>
2022-07-25 08:17:46 +02:00

61 lines
1.9 KiB
C++

/*
* Copyright (C) 2021-2022 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "performance.h"
#include "level_zero/tools/source/sysman/os_sysman.h"
#include "performance_imp.h"
namespace L0 {
PerformanceHandleContext::~PerformanceHandleContext() {
for (auto &pPerformance : handleList) {
if (pPerformance) {
delete pPerformance;
pPerformance = nullptr;
}
handleList.pop_back();
}
}
void PerformanceHandleContext::createHandle(ze_device_handle_t deviceHandle, zes_engine_type_flag_t domain) {
Performance *pPerformance = new PerformanceImp(pOsSysman, deviceHandle, domain);
if (pPerformance->isPerformanceEnabled == true) {
handleList.push_back(pPerformance);
} else {
delete pPerformance;
}
}
ze_result_t PerformanceHandleContext::init(std::vector<ze_device_handle_t> &deviceHandles, ze_device_handle_t coreDevice) {
for (const auto &deviceHandle : deviceHandles) {
createHandle(deviceHandle, ZES_ENGINE_TYPE_FLAG_MEDIA);
createHandle(deviceHandle, ZES_ENGINE_TYPE_FLAG_COMPUTE);
}
createHandle(coreDevice, ZES_ENGINE_TYPE_FLAG_OTHER);
return ZE_RESULT_SUCCESS;
}
ze_result_t PerformanceHandleContext::performanceGet(uint32_t *pCount, zes_perf_handle_t *phPerformance) {
std::call_once(initPerformanceOnce, [this]() {
this->init(pOsSysman->getDeviceHandles(), pOsSysman->getCoreDeviceHandle());
});
uint32_t handleListSize = static_cast<uint32_t>(handleList.size());
uint32_t numToCopy = std::min(*pCount, handleListSize);
if (0 == *pCount || *pCount > handleListSize) {
*pCount = handleListSize;
}
if (nullptr != phPerformance) {
for (uint32_t i = 0; i < numToCopy; i++) {
phPerformance[i] = handleList[i]->toPerformanceHandle();
}
}
return ZE_RESULT_SUCCESS;
}
} // namespace L0