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/*
* Copyright (C) 2020 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/sysman/engine/linux/os_engine_imp.h"
#include "shared/source/os_interface/linux/engine_info_impl.h"
#include "sysman/linux/os_sysman_imp.h"
namespace L0 {
static const std::multimap<drm_i915_gem_engine_class, zes_engine_group_t> i915ToEngineMap = {
{I915_ENGINE_CLASS_RENDER, ZES_ENGINE_GROUP_RENDER_SINGLE},
{I915_ENGINE_CLASS_VIDEO, ZES_ENGINE_GROUP_MEDIA_DECODE_SINGLE},
{I915_ENGINE_CLASS_VIDEO, ZES_ENGINE_GROUP_MEDIA_ENCODE_SINGLE},
{I915_ENGINE_CLASS_COPY, ZES_ENGINE_GROUP_COPY_SINGLE}};
static const std::multimap<zes_engine_group_t, drm_i915_gem_engine_class> engineToI915Map = {
{ZES_ENGINE_GROUP_RENDER_SINGLE, I915_ENGINE_CLASS_RENDER},
{ZES_ENGINE_GROUP_MEDIA_DECODE_SINGLE, I915_ENGINE_CLASS_VIDEO},
{ZES_ENGINE_GROUP_MEDIA_ENCODE_SINGLE, I915_ENGINE_CLASS_VIDEO},
{ZES_ENGINE_GROUP_COPY_SINGLE, I915_ENGINE_CLASS_COPY}};
ze_result_t OsEngine::getNumEngineTypeAndInstances(std::multimap<zes_engine_group_t, uint32_t> &engineGroupInstance, OsSysman *pOsSysman) {
LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
NEO::Drm *pDrm = &pLinuxSysmanImp->getDrm();
if (pDrm->queryEngineInfo() == false) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
auto engineInfo = static_cast<NEO::EngineInfoImpl *>(pDrm->getEngineInfo());
for (auto itr = engineInfo->engines.begin(); itr != engineInfo->engines.end(); ++itr) {
auto L0EngineEntryInMap = i915ToEngineMap.find(static_cast<drm_i915_gem_engine_class>(itr->engine.engine_class));
if (L0EngineEntryInMap == i915ToEngineMap.end()) {
continue;
}
auto L0EngineType = L0EngineEntryInMap->second;
engineGroupInstance.insert({L0EngineType, static_cast<uint32_t>(itr->engine.engine_instance)});
}
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxEngineImp::getActivity(zes_engine_stats_t *pStats) {
if (fd < 0) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
uint64_t data[2] = {};
if (pPmuInterface->pmuReadSingle(static_cast<int>(fd), data, sizeof(data)) < 0) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
// In data[], First u64 is "active time", And second u64 is "timestamp". Both in nanoseconds
pStats->activeTime = data[0] / microSecondsToNanoSeconds;
pStats->timestamp = data[1] / microSecondsToNanoSeconds;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxEngineImp::getProperties(zes_engine_properties_t &properties) {
properties.type = engineGroup;
properties.onSubdevice = 0;
properties.subdeviceId = 0;
return ZE_RESULT_SUCCESS;
}
void LinuxEngineImp::init() {
auto i915EngineClass = engineToI915Map.find(engineGroup);
// I915_PMU_ENGINE_BUSY macro provides the perf type config which we want to listen to get the engine busyness.
fd = pPmuInterface->pmuInterfaceOpen(I915_PMU_ENGINE_BUSY(i915EngineClass->second, engineInstance), -1, PERF_FORMAT_TOTAL_TIME_ENABLED);
}
LinuxEngineImp::LinuxEngineImp(OsSysman *pOsSysman, zes_engine_group_t type, uint32_t engineInstance) : engineGroup(type), engineInstance(engineInstance) {
LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
pDrm = &pLinuxSysmanImp->getDrm();
pDevice = pLinuxSysmanImp->getDeviceHandle();
pPmuInterface = pLinuxSysmanImp->getPmuInterface();
init();
}
OsEngine *OsEngine::create(OsSysman *pOsSysman, zes_engine_group_t type, uint32_t engineInstance) {
LinuxEngineImp *pLinuxEngineImp = new LinuxEngineImp(pOsSysman, type, engineInstance);
return static_cast<OsEngine *>(pLinuxEngineImp);
}
} // namespace L0
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