File: os_engine_imp.h

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/*
 * Copyright (C) 2020-2025 Intel Corporation
 *
 * SPDX-License-Identifier: MIT
 *
 */

#pragma once
#include "shared/source/helpers/non_copyable_or_moveable.h"

#include "level_zero/tools/source/sysman/engine/os_engine.h"

namespace NEO {
class Drm;
struct EngineInfo;
} // namespace NEO

namespace L0 {
class PmuInterface;
struct Device;
class SysfsAccess;
struct OsSysman;

class LinuxEngineImp : public OsEngine, NEO::NonCopyableAndNonMovableClass {
  public:
    ze_result_t getActivity(zes_engine_stats_t *pStats) override;
    ze_result_t getActivityExt(uint32_t *pCount, zes_engine_stats_t *pStats) override;
    ze_result_t getProperties(zes_engine_properties_t &properties) override;
    ze_result_t isEngineModuleSupported() override;
    static zes_engine_group_t getGroupFromEngineType(zes_engine_group_t type);
    LinuxEngineImp() = default;
    LinuxEngineImp(OsSysman *pOsSysman, zes_engine_group_t type, uint32_t engineInstance, uint32_t subDeviceId, ze_bool_t onSubDevice);
    static void getInstancesFromEngineInfo(NEO::EngineInfo *engineInfo, std::set<std::pair<zes_engine_group_t, EngineInstanceSubDeviceId>> &engineGroupInstance);
    void cleanup();
    ~LinuxEngineImp() override;

  protected:
    zes_engine_group_t engineGroup = ZES_ENGINE_GROUP_ALL;
    uint32_t engineInstance = 0;
    PmuInterface *pPmuInterface = nullptr;
    NEO::Drm *pDrm = nullptr;
    Device *pDevice = nullptr;
    uint32_t subDeviceId = 0;
    ze_bool_t onSubDevice = false;
    uint32_t numberOfVfs = 0;
    SysfsAccess *pSysfsAccess = nullptr;
    void checkErrorNumberAndUpdateStatus();

  private:
    void init();
    std::vector<std::pair<int64_t, int64_t>> fdList{};
    std::vector<std::pair<uint64_t, uint64_t>> vfConfigs{};
    ze_result_t initStatus = ZE_RESULT_SUCCESS;
};

class LinuxEngineImpPrelim : public OsEngine, NEO::NonCopyableAndNonMovableClass {
  public:
    ze_result_t getActivity(zes_engine_stats_t *pStats) override;
    ze_result_t getActivityExt(uint32_t *pCount, zes_engine_stats_t *pStats) override;
    ze_result_t getProperties(zes_engine_properties_t &properties) override;
    ze_result_t isEngineModuleSupported() override;
    static zes_engine_group_t getGroupFromEngineType(zes_engine_group_t type);
    static void getInstancesFromEngineInfo(NEO::EngineInfo *engineInfo, std::set<std::pair<zes_engine_group_t, EngineInstanceSubDeviceId>> &engineGroupInstance);
    LinuxEngineImpPrelim() = default;
    LinuxEngineImpPrelim(OsSysman *pOsSysman, zes_engine_group_t type, uint32_t engineInstance, uint32_t subDeviceId, ze_bool_t onSubDevice);
    ~LinuxEngineImpPrelim() override;
    void cleanup();

  protected:
    zes_engine_group_t engineGroup = ZES_ENGINE_GROUP_ALL;
    uint32_t engineInstance = 0;
    PmuInterface *pPmuInterface = nullptr;
    NEO::Drm *pDrm = nullptr;
    Device *pDevice = nullptr;
    uint32_t subDeviceId = 0;
    ze_bool_t onSubDevice = false;
    uint32_t numberOfVfs = 0;
    SysfsAccess *pSysfsAccess = nullptr;

    void checkErrorNumberAndUpdateStatus();

  private:
    void init();
    std::vector<std::pair<int64_t, int64_t>> fdList{};
    std::vector<std::pair<uint64_t, uint64_t>> vfConfigs{};
    ze_result_t initStatus = ZE_RESULT_SUCCESS;
};

} // namespace L0