src/gpu-compute/scheduler.cc

   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 #include "gpu-compute/scheduler.hh"
  37
  38 Scheduler::Scheduler(const ComputeUnitParams *p)
  39 {
  40     if (p->execPolicy  == "OLDEST-FIRST") {
  41         schedPolicy = SCHED_POLICY::OF_POLICY;
  42     } else if (p->execPolicy  == "ROUND-ROBIN") {
  43         schedPolicy = SCHED_POLICY::RR_POLICY;
  44     } else {
  45         fatal("Unimplemented scheduling policy");
  46     }
  47 }
  48
  49 Wavefront*
  50 Scheduler::chooseWave()
  51 {
  52     if (schedPolicy == SCHED_POLICY::OF_POLICY) {
  53         return OFSchedPolicy.chooseWave();
  54     } else if (schedPolicy == SCHED_POLICY::RR_POLICY) {
  55         return RRSchedPolicy.chooseWave();
  56     } else {
  57         fatal("Unimplemented scheduling policy");
  58     }
  59 }
  60
  61 void
  62 Scheduler::bindList(std::vector<Wavefront*> *list)
  63 {
  64     if (schedPolicy == SCHED_POLICY::OF_POLICY) {
  65         OFSchedPolicy.bindList(list);
  66     } else if (schedPolicy == SCHED_POLICY::RR_POLICY) {
  67         RRSchedPolicy.bindList(list);
  68     } else {
  69         fatal("Unimplemented scheduling policy");
  70     }
  71 }