src/gpu-compute/rr_scheduling_policy.hh

   1 /*
   2  * Copyright (c) 2014-2015 Advanced Micro Devices, Inc.
   3  * All rights reserved.
   4  *
   5  * For use for simulation and test purposes only
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright notice,
  11  * this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright notice,
  14  * this list of conditions and the following disclaimer in the documentation
  15  * and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the copyright holder nor the names of its contributors
  18  * may be used to endorse or promote products derived from this software
  19  * without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  * Author: Sooraj Puthoor
  34  */
  35
  36 #ifndef __RR_SCHEDULING_POLICY_HH__
  37 #define __RR_SCHEDULING_POLICY_HH__
  38
  39 #include <inttypes.h>
  40
  41 #include <cstddef>
  42 #include <utility>
  43 #include <vector>
  44
  45 #include "base/logging.hh"
  46
  47 class Wavefront;
  48
  49 // Round-Robin pick among the list of ready waves
  50 class RRSchedulingPolicy
  51 {
  52   public:
  53     RRSchedulingPolicy() : scheduleList(nullptr) { }
  54
  55     Wavefront* chooseWave();
  56     void bindList(std::vector<Wavefront*> *list);
  57
  58   private:
  59     // List of waves which are participating in scheduling.
  60     // This scheduler selects one wave from this list based on
  61     // round robin policy
  62     std::vector<Wavefront*> *scheduleList;
  63 };
  64
  65 #endif // __RR_SCHEDULING_POLICY_HH__