/*
 * Copyright (c) 2014-2017 Advanced Micro Devices, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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 */

#include "gpu-compute/scheduler.hh"

#include "gpu-compute/of_scheduling_policy.hh"
#include "gpu-compute/rr_scheduling_policy.hh"
#include "params/ComputeUnit.hh"

namespace gem5
{

Scheduler::Scheduler(const ComputeUnitParams &p)
{
    if (p.execPolicy == "OLDEST-FIRST") {
        schedPolicy = new OFSchedulingPolicy();
    } else if (p.execPolicy == "ROUND-ROBIN") {
        schedPolicy = new RRSchedulingPolicy();
    } else {
        fatal("Unimplemented scheduling policy.\n");
    }
}

Wavefront*
Scheduler::chooseWave()
{
    return schedPolicy->chooseWave(scheduleList);
}

void
Scheduler::bindList(std::vector<Wavefront*> *sched_list)
{
    scheduleList = sched_list;
}

} // namespace gem5