text: /*
   * Copyright (c) 2021 Advanced Micro Devices, Inc.
   * All rights reserved.
   *
   * For use for simulation and test purposes only
   *
   * 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.
   */
  
  /*
   * This is a fake DMA device to pass to Ruby.py so it will create the DMA
   * sequencers and controllers without being protocol specific. It otherwise
   * does nothing.
   */
  
  #ifndef __CPU_TESTERS_GPU_RUBY_TEST_TESTER_DMA_HH__
  #define __CPU_TESTERS_GPU_RUBY_TEST_TESTER_DMA_HH__
  
  #include "dev/dma_device.hh"
  #include "params/TesterDma.hh"
  
  namespace gem5
  {
  
  class TesterDma : public DmaDevice
  {
    public:
      typedef TesterDmaParams Params;
      TesterDma(const Params &p) : DmaDevice(p) { }
      virtual ~TesterDma() { }
  
      // The tester does not use a huge memory range. The range itself is
      // choosen arbitrarily
      AddrRangeList
      getAddrRanges() const override
      {
          AddrRangeList ranges;
          ranges.push_back(RangeSize(0, 0xc0000000));
          return ranges;
      }
  
      // These latencies are not important. Return any integer.
      Tick read(PacketPtr) override { return 10; }
      Tick write(PacketPtr) override { return 10; }
  };
  
  } // namespace gem5
  
  #endif /* __CPU_TESTERS_GPU_RUBY_TEST_TESTER_DMA_HH__ */
  