Mercurial > hg > Members > kono > Cerium
annotate TaskManager/kernel/ppe/TaskManagerImpl.cc @ 736:31d0a5baafdf
cut printf
author | hiroki@localhost.localdomain |
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date | Sun, 27 Dec 2009 20:39:33 +0900 |
parents | cafffff0f45a |
children | 2708c4a7bade 496a8159e840 |
rev | line source |
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5 | 1 #include <stdio.h> |
3 | 2 #include "TaskManagerImpl.h" |
46 | 3 #include "types.h" |
4 #include "error.h" | |
518 | 5 #include "SchedTask.h" |
619 | 6 #include "Scheduler.h" |
634 | 7 #include "SysTask.h" |
8 #include "SysFunc.h" | |
619 | 9 |
220 | 10 static HTaskPtr systask_start; |
109 | 11 static HTaskPtr systask_finish; |
42 | 12 |
514 | 13 static void |
14 noaction(SchedTask *s, void *read, void *write) | |
3 | 15 { |
16 } | |
17 | |
109 | 18 TaskManagerImpl::TaskManagerImpl(int num) |
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19 : machineNum(num) { |
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20 activeTaskQueue = new HTaskInfo(); |
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21 waitTaskQueue = new HTaskInfo(); |
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22 htaskImpl = waitTaskQueue ; // any HTaskInfo |
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23 taskQueueImpl = new TaskQueueInfo(); |
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24 } |
50 | 25 |
220 | 26 /** |
298 | 27 * 一番最初に PPE で実行される systask_start |
220 | 28 */ |
42 | 29 void |
499 | 30 TaskManagerImpl::systask_init() |
42 | 31 { |
109 | 32 systask_register(); |
639 | 33 systask_start = create_task(StartTask,0,0,0,0); |
34 systask_finish = create_task(FinishTask,0,0,0,0); | |
220 | 35 |
36 systask_start->spawn(); | |
37 | |
634 | 38 // すべての Task が FinishTask を wait_for すると、 |
39 // あらゆる Task が FinishTask の waiting task queue を操作する | |
40 // ことになる。それは、重すぎる。PPE/SPE Task が終了した時点で、 | |
41 // TaskManager が実行する方が安い。 | |
42 // append_waitTask(systask_finish); | |
43 } | |
44 | |
45 HTaskPtr | |
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46 TaskManagerImpl::create_task(int cmd,memaddr rbuf, long r_size, memaddr wbuf, long w_size) |
634 | 47 { |
48 HTaskPtr new_task; | |
49 | |
50 new_task = htaskImpl->create(cmd, rbuf, r_size, wbuf, w_size); | |
51 new_task->post_func = noaction; | |
52 new_task->mimpl = this; | |
53 | |
54 return new_task; | |
42 | 55 } |
56 | |
3 | 57 HTaskPtr |
109 | 58 TaskManagerImpl::create_task(int cmd) |
3 | 59 { |
60 HTaskPtr new_task; | |
61 | |
703 | 62 // for compatibility |
63 new_task = htaskImpl->create(TaskArray1); | |
64 new_task->post_func = noaction; | |
65 new_task->mimpl = this; | |
736 | 66 new_task->create_task_array(cmd,1,8,8,8); |
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67 // rbuf, r_size were set |
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68 new_task->command = TaskArray1; |
63 | 69 |
3 | 70 return new_task; |
71 } | |
72 | |
73 /** | |
298 | 74 * task の依存関係を設定 |
75 * master task が終わってから、slave task を実行するように | |
109 | 76 * master->wait_for(slave); |
3 | 77 */ |
78 void | |
79 TaskManagerImpl::set_task_depend(HTaskPtr master, HTaskPtr slave) | |
519 | 80 { |
3 | 81 TaskQueuePtr m, s; |
519 | 82 |
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83 m = taskQueueImpl->create(master); |
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84 s = taskQueueImpl->create(slave); |
519 | 85 |
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86 master->wait_me->addLast(s); |
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87 slave->wait_i->addLast(m); |
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88 s->waiter = m; |
519 | 89 } |
90 | |
3 | 91 /** |
298 | 92 * タスクを実行可能キューまたは待機キューへ追加する。 |
93 * 依存関係が満たされていれば active, まだだったら wait へ。 | |
109 | 94 * task->spawn(); |
95 */ | |
3 | 96 void |
18 | 97 TaskManagerImpl::spawn_task(HTaskPtr task) |
3 | 98 { |
109 | 99 // waiter // master |
100 // waitee // slave | |
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101 if (task->wait_i->empty()) { |
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102 append_activeTask(task); |
3 | 103 } else { |
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104 append_waitTask(task); |
3 | 105 } |
109 | 106 |
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107 // systask_finish->wait_for(task); |
3 | 108 } |
42 | 109 |
109 | 110 /** |
298 | 111 * Task を実行可能キューに追加する |
109 | 112 */ |
113 void | |
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114 TaskManagerImpl::append_activeTask(HTaskPtr q) |
109 | 115 { |
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116 activeTaskQueue->addLast(q); |
109 | 117 } |
118 | |
119 /** | |
298 | 120 * タスクが実行する CPU を選択する |
109 | 121 * |
298 | 122 * 現在は CPU_PPE, CPU_SPE, SPE_ANY, SPE_0, SPE_1, ..., SPE_5 |
123 * types.h に書いてます。 | |
109 | 124 */ |
65 | 125 void |
126 TaskManagerImpl::set_task_cpu(HTaskPtr task, CPU_TYPE type) | |
127 { | |
664 | 128 if (machineNum==0) |
129 task->cpu_type = CPU_PPE ; | |
130 else | |
131 task->cpu_type = type; | |
65 | 132 } |
133 | |
109 | 134 /** |
298 | 135 * 終了したタスクから依存の処理とか |
136 * post_func() はこのタスクが終了したら実行する関数。 | |
109 | 137 * |
298 | 138 * @param [task] 終了したタスク |
109 | 139 */ |
140 void | |
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141 TaskManagerImpl::check_task_finish(HTaskPtr me, HTaskInfo *wait_queue) |
42 | 142 { |
499 | 143 |
497 | 144 while(TaskQueue *p = me->wait_me->poll()) { |
499 | 145 HTaskPtr you = p->task; |
497 | 146 TaskQueueInfo *wait_i = you->wait_i; |
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147 // 相手の wait queue から自分(を指しているTaskQueue)を削除 |
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148 wait_i->remove(p->waiter); |
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149 // queue を free する |
493 | 150 wait_i->free_(p->waiter); |
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151 |
497 | 152 if (wait_i->empty()) { |
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153 wait_queue->remove(you); |
499 | 154 append_activeTask(you); |
497 | 155 } |
156 | |
493 | 157 wait_i->free_(p); |
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158 } |
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159 |
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160 htaskImpl->free_(me); |
109 | 161 } |
42 | 162 |
109 | 163 |
164 void | |
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165 TaskManagerImpl::append_waitTask(HTaskPtr q) |
109 | 166 { |
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167 waitTaskQueue ->addLast(q); |
109 | 168 } |
169 | |
54 | 170 |
619 | 171 |
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172 /* end */ |