/*
 * Copyright (c) 2017-2021 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
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef CPU_TESTERS_PROTOCOL_TESTER_GPU_WAVEFRONT_HH_
#define CPU_TESTERS_PROTOCOL_TESTER_GPU_WAVEFRONT_HH_

#include "cpu/testers/gpu_ruby_test/tester_thread.hh"
#include "params/GpuWavefront.hh"
#include "sim/clocked_object.hh"

namespace gem5
{

class GpuWavefront : public TesterThread
{
  public:
    typedef GpuWavefrontParams Params;
    GpuWavefront(const Params &p);
    virtual ~GpuWavefront();

    typedef AddressManager::Location Location;
    typedef AddressManager::Value Value;

    virtual void hitCallback(PacketPtr pkt);

  protected:
    void issueLoadOps();
    void issueStoreOps();
    void issueAtomicOps();
    // acquire and release ops are protocol-specific, so their issue functions
    // may be redefined by a child class of GpuWavefront
    virtual void issueAcquireOp();
    virtual void issueReleaseOp();
    // set extra request flags that is specific to a target protocol
    virtual void setExtraRequestFlags(RequestPtr req);

  protected:
    int cuId;    // compute unit associated with this wavefront
};

} // namespace gem5

#endif /* CPU_TESTERS_PROTOCOL_TESTER_GPU_WAVEFRONT_HH_ */