rocm-systems/include/amd_smi/impl/amd_smi_system.h

/*
 * =============================================================================
 * The University of Illinois/NCSA
 * Open Source License (NCSA)
 *
 * Copyright (c) 2022, Advanced Micro Devices, Inc.
 * All rights reserved.
 *
 * Developed by:
 *
 *                 AMD Research and AMD ROC Software Development
 *
 *                 Advanced Micro Devices, Inc.
 *
 *                 www.amd.com
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal with the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 *  - Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimers.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimers in
 *    the documentation and/or other materials provided with the distribution.
 *  - Neither the names of <Name of Development Group, Name of Institution>,
 *    nor the names of its contributors may be used to endorse or promote
 *    products derived from this Software without specific prior written
 *    permission.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS WITH THE SOFTWARE.
 *
 */

#ifndef AMD_SMI_INCLUDE_AMD_SMI_SYSTEM_H_
#define AMD_SMI_INCLUDE_AMD_SMI_SYSTEM_H_

#include <vector>
#include <set>
#include "amd_smi/amdsmi.h"
#include "amd_smi/impl/amd_smi_socket.h"
#include "amd_smi/impl/amd_smi_processor.h"
#include "amd_smi/impl/amd_smi_drm.h"
#ifdef ENABLE_ESMI_LIB
#include "amd_smi/impl/amd_smi_cpu_socket.h"
#endif

namespace amd {
namespace smi {

// Singleton: Only one system in an application
class AMDSmiSystem {
 public:
    static AMDSmiSystem& getInstance() {
        static AMDSmiSystem instance;
        return instance;
    }
    amdsmi_status_t init(uint64_t flags);
    amdsmi_status_t cleanup();

    std::vector<AMDSmiSocket*>& get_sockets() {return sockets_;}

    amdsmi_status_t handle_to_socket(amdsmi_socket_handle socket_handle,
            AMDSmiSocket** socket);

    amdsmi_status_t handle_to_processor(amdsmi_processor_handle processor_handle,
            AMDSmiProcessor** device);

    amdsmi_status_t gpu_index_to_handle(uint32_t gpu_index,
                    amdsmi_processor_handle* processor_handle);

#ifdef ENABLE_ESMI_LIB
    std::vector<AMDSmiCpuSocket*>& get_cpu_sockets() {return cpu_sockets_;}

    amdsmi_status_t handle_to_cpusocket(amdsmi_cpusocket_handle cpusock_handle,
            AMDSmiCpuSocket** cpu_socket);

    amdsmi_status_t cpu_index_to_handle(uint32_t cpu_index,
                    amdsmi_cpusocket_handle* cpusock_handle);

    amdsmi_status_t get_cpu_sockets(uint32_t socks);

    amdsmi_status_t get_cpu_cores(uint32_t cpus);

    amdsmi_status_t get_threads_per_core(uint32_t threads);

    amdsmi_status_t get_cpu_family(uint32_t family);

    amdsmi_status_t get_cpu_model(uint32_t model);
#endif
 private:
    AMDSmiSystem() : init_flag_(AMDSMI_INIT_AMD_GPUS) {}
    amdsmi_status_t get_gpu_bdf_by_index(uint32_t index, std::string& bdf);
    amdsmi_status_t populate_amd_gpu_devices();
    uint64_t init_flag_;
    AMDSmiDrm drm_;
    std::vector<AMDSmiSocket*> sockets_;
    std::set<AMDSmiProcessor*> processors_;     // Track valid processors
#ifdef ENABLE_ESMI_LIB
    amdsmi_status_t populate_amd_cpus();
    std::vector<AMDSmiCpuSocket*> cpu_sockets_;
    static uint32_t sockets;
    static uint32_t cpus;
    static uint32_t threads;
    static uint32_t family;
    static uint32_t model;
#endif
};



}  // namespace smi
}  // namespace amd

#endif  // AMD_SMI_INCLUDE_AMD_SMI_SYSTEM_H_