/*
 * =============================================================================
 * The University of Illinois/NCSA
 * Open Source License (NCSA)
 *
 * Copyright (c) 2025, 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
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 *
 */
#ifndef INCLUDE_ROCM_SMI_ROCM_SMI_KFD_H_
#define INCLUDE_ROCM_SMI_ROCM_SMI_KFD_H_

#include <map>
#include <memory>
#include <string>
#include <unordered_set>
#include <vector>

#include "rocm_smi/rocm_smi.h"
#include "rocm_smi/rocm_smi_device.h"
#include "rocm_smi/rocm_smi_io_link.h"

namespace amd {
namespace smi {

class KFDNode {
 public:
  explicit KFDNode(uint32_t node_ind) : node_indx_(node_ind) {}
  ~KFDNode();

  int Initialize();
  int ReadProperties(void);
  int get_property_value(std::string property, uint64_t* value);
  uint64_t gpu_id(void) const { return gpu_id_; }
  std::string name(void) const { return name_; }
  uint32_t node_index(void) const { return node_indx_; }
  uint32_t numa_node_number(void) const { return numa_node_number_; }
  uint64_t numa_node_weight(void) const { return numa_node_weight_; }
  uint64_t xgmi_hive_id(void) const { return xgmi_hive_id_; }
  uint32_t cu_count(void) const { return cu_count_; }
  IO_LINK_TYPE numa_node_type(void) const { return numa_node_type_; }
  int get_io_link_type(uint32_t node_to, IO_LINK_TYPE* type);
  int get_io_link_weight(uint32_t node_to, uint64_t* weight);
  int get_io_link_bandwidth(uint32_t node_to, uint64_t* max_bandwidth, uint64_t* min_bandwidth);
  std::shared_ptr<Device> amdgpu_device(void) const { return amdgpu_device_; }
  uint32_t amdgpu_dev_index(void) const { return amdgpu_dev_index_; }
  void set_amdgpu_dev_index(uint32_t val) { amdgpu_dev_index_ = val; }

  // Get memory from kfd
  int get_total_memory(uint64_t* total);
  int get_used_memory(uint64_t* used);

  // Get gfx target version from kfd
  int get_gfx_target_version(uint64_t* gfx_target_version);
  // Get gpu_id (AKA GUID) version from kfd
  int get_gpu_id(uint64_t* gpu_id);
  // Get node id from kfd
  int get_node_id(uint32_t* node_id);

 private:
  uint32_t node_indx_;
  uint32_t amdgpu_dev_index_;
  uint64_t gpu_id_;
  std::string name_;
  uint32_t numa_node_number_;
  uint64_t numa_node_weight_;
  IO_LINK_TYPE numa_node_type_;
  uint64_t xgmi_hive_id_;
  uint32_t cu_count_;
  std::map<uint32_t, IO_LINK_TYPE> io_link_type_;
  std::map<uint32_t, uint64_t> io_link_weight_;
  std::map<uint32_t, uint64_t> io_link_max_bandwidth_;
  std::map<uint32_t, uint64_t> io_link_min_bandwidth_;
  std::map<uint32_t, std::shared_ptr<IOLink>> io_link_map_;
  std::map<std::string, uint64_t> properties_;
  std::shared_ptr<Device> amdgpu_device_;
};

int DiscoverKFDNodes(std::map<uint64_t, std::shared_ptr<KFDNode>>* nodes);

int GetProcessInfo(rsmi_process_info_t* procs, uint32_t num_allocated, uint32_t* num_procs_found);
int GetProcessInfoForPID(uint32_t pid, rsmi_process_info_t* proc,
                         std::unordered_set<uint64_t>* gpu_set);

int GetProcessGPUs(uint32_t pid, std::unordered_set<uint64_t>* gpu_count);
int ReadKFDDeviceProperties(uint32_t dev_id, std::vector<std::string>* retVec);

int read_node_properties(uint32_t node, std::string property_name, uint64_t* val);
int get_gpu_id(uint32_t node, uint64_t* gpu_id);

}  // namespace smi
}  // namespace amd

#endif  // INCLUDE_ROCM_SMI_ROCM_SMI_KFD_H_