rocm-systems/source/lib/rocprofiler/hsa/queue_controller.hpp

// MIT License
//
// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
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// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// 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
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// THE SOFTWARE.

#pragma once

#include <rocprofiler/rocprofiler.h>

#include "lib/rocprofiler/hsa/queue.hpp"

#include <cstdint>
#include <optional>
#include <unordered_map>
#include <vector>

namespace rocprofiler
{
namespace hsa
{
// Tracks and manages HSA queues
class QueueController
{
public:
    QueueController() = default;
    // Initializes the QueueInterceptor. This must be delayed until
    // HSA has been inited.
    void init(CoreApiTable& core_table, AmdExtTable& ext_table);

    // Called to add a queue that was created by the user program
    void add_queue(hsa_queue_t*, std::unique_ptr<Queue>);
    void destory_queue(hsa_queue_t*);

    // Add callback to queues associated with the agent. Returns a client
    // id that can be used by callers to remove the callback. If no agent
    // is specified, callback will be applied to all agents.
    ClientID add_callback(std::optional<rocprofiler_agent_t>,
                          Queue::queue_cb_t,
                          Queue::completed_cb_t);
    void     remove_callback(ClientID);

    const CoreApiTable& get_core_table() const { return _core_table; }
    const AmdExtTable&  get_ext_table() const { return _ext_table; }

    // Gets the list of supported HSA agents that can be intercepted
    const auto& get_supported_agents() const { return _supported_agents; }
    auto&       get_supported_agents() { return _supported_agents; }

    const Queue* get_queue(const hsa_queue_t&) const;

private:
    using agent_callback_tuple_t =
        std::tuple<rocprofiler_agent_t, Queue::queue_cb_t, Queue::completed_cb_t>;
    using queue_map_t       = std::unordered_map<hsa_queue_t*, std::unique_ptr<Queue>>;
    using client_id_map_t   = std::unordered_map<ClientID, agent_callback_tuple_t>;
    using agent_cache_map_t = std::unordered_map<uint32_t, AgentCache>;

    CoreApiTable                          _core_table       = {};
    AmdExtTable                           _ext_table        = {};
    common::Synchronized<queue_map_t>     _queues           = {};
    common::Synchronized<client_id_map_t> _callback_cache   = {};
    agent_cache_map_t                     _supported_agents = {};
};

QueueController&
get_queue_controller();

void
queue_controller_init(HsaApiTable* table);

}  // namespace hsa
}  // namespace rocprofiler