1/*
| 1/*
|
2 * Copyright (c) 2014-2015 Advanced Micro Devices, Inc.
| 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 *
| 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.
| 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 *
| 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
| 33 * Authors: Sooraj Puthoor,
34 * Anthony Gutierrez
|
34 */
35
| 35 */
36
|
36#ifndef __OF_SCHEDULING_POLICY_HH__
37#define __OF_SCHEDULING_POLICY_HH__
| 37#ifndef __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__
38#define __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__
|
38
| 39
|
39#include <cstddef>
| |
40#include <vector>
41
| 40#include <vector>
41
|
42#include "base/logging.hh"
| 42#include "gpu-compute/scheduling_policy.hh"
43#include "gpu-compute/wavefront.hh"
|
43
| 44
|
44class Wavefront;
45
46// Oldest First where age is marked by the wave id
47class OFSchedulingPolicy
| 45// oldest first where age is marked by the wave id
46class OFSchedulingPolicy final : public __SchedulingPolicy<OFSchedulingPolicy>
|
48{
49 public:
| 47{
48 public:
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50 OFSchedulingPolicy() : scheduleList(nullptr) { }
| 49 OFSchedulingPolicy()
50 {
51 }
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51
| 52
|
52 Wavefront* chooseWave();
53 void bindList(std::vector<Wavefront*> *list);
| 53 static Wavefront*
54 __chooseWave(std::vector<Wavefront*> *sched_list)
55 {
56 panic_if(!sched_list->size(), "OF scheduling policy sched list is "
57 "empty.\n");
58 // set when policy choose a wave to schedule
59 Wavefront *selected_wave(nullptr);
60 int selected_wave_id = -1;
61 int selected_position = 0;
|
54
| 62
|
55 private:
56 // List of waves which are participating in scheduling.
57 // This scheduler selects the oldest wave from this list
58 std::vector<Wavefront*> *scheduleList;
| 63 for (int position = 0; position < sched_list->size(); ++position) {
64 Wavefront *cur_wave = sched_list->at(position);
65 int cur_wave_id = cur_wave->wfDynId;
66
67 // Choosed wave with the lowest wave ID
68 if (selected_wave_id == -1 || cur_wave_id < selected_wave_id) {
69 selected_wave_id = cur_wave_id;
70 selected_wave = cur_wave;
71 selected_position = position;
72 }
73 }
74
75 // Check to make sure ready list had at least one schedulable wave
76 panic_if(!selected_wave, "No wave found by OF scheduling policy.\n");
77 sched_list->erase(sched_list->begin() + selected_position);
78
79 return selected_wave;
80 }
|
59};
60
| 81};
82
|
61#endif // __OF_SCHEDULING_POLICY_HH__
| 83#endif // __GPU_COMPUTE_OF_SCHEDULING_POLICY_HH__
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| |