Mercurial > hg > Members > kono > Cerium
annotate TaskManager/kernel/ppe/TaskManagerImpl.cc @ 719:cafffff0f45a
clean up scheduler main loop
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sat, 19 Dec 2009 10:34:43 +0900 |
| parents | f725c6455d19 |
| children | 31d0a5baafdf |
| rev | line source |
|---|---|
| 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; | |
| 66 Task *task = new_task->create_task_array(cmd,1,8,8,8); | |
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67 // rbuf, r_size were set |
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Compatibility mode works.
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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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parents:
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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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parents:
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114 TaskManagerImpl::append_activeTask(HTaskPtr q) |
| 109 | 115 { |
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479
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parents:
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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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parents:
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148 wait_i->remove(p->waiter); |
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parents:
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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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parents:
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160 htaskImpl->free_(me); |
| 109 | 161 } |
| 42 | 162 |
| 109 | 163 |
| 164 void | |
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parents:
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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 */ |