1/*
2 * Copyright (c) 2014-2017 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
18 * contributors may be used to endorse or promote products derived from this
19 * software 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 * Authors: Sooraj Puthoor,
34 *          Anthony Gutierrez
35 */
36
37#ifndef __GPU_COMPUTE_SCHEDULING_POLICY_HH__
38#define __GPU_COMPUTE_SCHEDULING_POLICY_HH__
39
40#include <vector>
41
42class Wavefront;
43
44/**
45 * Interface class for the wave scheduling policy.
46 */
47class SchedulingPolicy
48{
49  public:
50    SchedulingPolicy() { }
51    virtual Wavefront *chooseWave(std::vector<Wavefront*> *sched_list) = 0;
52};
53
54/**
55 * Intermediate class that derives from the i-face class, and implements
56 * its API. It uses the CRTP to take in the actual scheduling policy
57 * implementation as a template parameter. This allows us to use a pointer
58 * to SchedulingPolicy and instantiate whichever policy we want. The
59 * derived policies implement the scheduler arbitration logic using
60 * the static member method called __chooseWave();
61 */
62template<typename Policy>
63class __SchedulingPolicy : public SchedulingPolicy
64{
65  public:
66    __SchedulingPolicy() { }
67
68    Wavefront*
69    chooseWave(std::vector<Wavefront*> *sched_list) override
70    {
71        return Policy::__chooseWave(sched_list);
72    }
73};
74
75#endif // __GPU_COMPUTE_SCHEDULING_POLICY_HH__
76