Mercurial > hg > Members > kono > Cerium
annotate TaskManager/kernel/ppe/TaskManagerImpl.cc @ 855:e2af25174a05
light fix--
| author | Yutaka_Kinjyo |
|---|---|
| date | Thu, 10 Jun 2010 17:18:55 +0900 |
| parents | fc521121ca8a |
| children | ad95be23c794 |
| 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" | |
| 801 | 9 #include <string.h> |
| 10 | |
| 619 | 11 |
| 220 | 12 static HTaskPtr systask_start; |
| 109 | 13 static HTaskPtr systask_finish; |
| 42 | 14 |
| 514 | 15 static void |
| 16 noaction(SchedTask *s, void *read, void *write) | |
| 3 | 17 { |
| 18 } | |
| 19 | |
| 835 | 20 TaskManagerImpl::TaskManagerImpl(int num) |
| 21 : machineNum(num){ | |
| 853 | 22 // 実行可能なHTaskのリスト |
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23 activeTaskQueue = new HTaskInfo(); |
| 853 | 24 // wait_forで止まっているHTaskのリスト。必要ないが、Dead lock detection に使う |
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25 waitTaskQueue = new HTaskInfo(); |
| 853 | 26 // HTask の factory. HTaskInfo ならなんでもいい。 |
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27 htaskImpl = waitTaskQueue ; // any HTaskInfo |
| 853 | 28 // Task の dependency を表現する double linked list. HTaskInfo とは別に必要。 |
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29 taskQueueImpl = new TaskQueueInfo(); |
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30 } |
| 50 | 31 |
| 220 | 32 /** |
| 298 | 33 * 一番最初に PPE で実行される systask_start |
| 220 | 34 */ |
| 42 | 35 void |
| 499 | 36 TaskManagerImpl::systask_init() |
| 42 | 37 { |
| 109 | 38 systask_register(); |
| 639 | 39 systask_start = create_task(StartTask,0,0,0,0); |
| 40 systask_finish = create_task(FinishTask,0,0,0,0); | |
| 220 | 41 |
| 42 systask_start->spawn(); | |
| 43 | |
| 634 | 44 // すべての Task が FinishTask を wait_for すると、 |
| 45 // あらゆる Task が FinishTask の waiting task queue を操作する | |
| 46 // ことになる。それは、重すぎる。PPE/SPE Task が終了した時点で、 | |
| 47 // TaskManager が実行する方が安い。 | |
| 48 // append_waitTask(systask_finish); | |
| 49 } | |
| 50 | |
| 51 HTaskPtr | |
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52 TaskManagerImpl::create_task(int cmd,memaddr rbuf, long r_size, memaddr wbuf, long w_size) |
| 634 | 53 { |
| 54 HTaskPtr new_task; | |
| 55 | |
| 56 new_task = htaskImpl->create(cmd, rbuf, r_size, wbuf, w_size); | |
| 57 new_task->post_func = noaction; | |
| 58 new_task->mimpl = this; | |
| 59 | |
| 60 return new_task; | |
| 42 | 61 } |
| 62 | |
| 3 | 63 HTaskPtr |
| 109 | 64 TaskManagerImpl::create_task(int cmd) |
| 3 | 65 { |
| 66 HTaskPtr new_task; | |
| 67 | |
| 703 | 68 // for compatibility |
| 69 new_task = htaskImpl->create(TaskArray1); | |
| 70 new_task->post_func = noaction; | |
| 71 new_task->mimpl = this; | |
| 736 | 72 new_task->create_task_array(cmd,1,8,8,8); |
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73 // rbuf, r_size were set |
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74 new_task->command = TaskArray1; |
| 63 | 75 |
| 3 | 76 return new_task; |
| 77 } | |
| 78 | |
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79 HTaskPtr |
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80 TaskManagerImpl::create_task_array(int id, int num_task, int num_param, int num_inData, int num_outData) |
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81 { |
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82 HTaskPtr ta = create_task(TaskArray,0,0,0,0); |
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83 ta->create_task_array(id, num_task, num_param, num_inData, num_outData) ; |
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84 return ta; |
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85 } |
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86 |
| 3 | 87 /** |
| 298 | 88 * task の依存関係を設定 |
| 89 * master task が終わってから、slave task を実行するように | |
| 109 | 90 * master->wait_for(slave); |
| 3 | 91 */ |
| 92 void | |
| 93 TaskManagerImpl::set_task_depend(HTaskPtr master, HTaskPtr slave) | |
| 519 | 94 { |
| 3 | 95 TaskQueuePtr m, s; |
| 519 | 96 |
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97 m = taskQueueImpl->create(master); |
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98 s = taskQueueImpl->create(slave); |
| 519 | 99 |
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100 master->wait_me->addLast(s); |
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101 slave->wait_i->addLast(m); |
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102 s->waiter = m; |
| 519 | 103 } |
| 104 | |
| 3 | 105 /** |
| 298 | 106 * タスクを実行可能キューまたは待機キューへ追加する。 |
| 107 * 依存関係が満たされていれば active, まだだったら wait へ。 | |
| 109 | 108 * task->spawn(); |
| 109 */ | |
| 3 | 110 void |
| 18 | 111 TaskManagerImpl::spawn_task(HTaskPtr task) |
| 3 | 112 { |
| 109 | 113 // waiter // master |
| 114 // waitee // slave | |
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115 if (task->wait_i->empty()) { |
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116 append_activeTask(task); |
| 3 | 117 } else { |
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118 append_waitTask(task); |
| 3 | 119 } |
| 109 | 120 |
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121 // systask_finish->wait_for(task); |
| 3 | 122 } |
| 42 | 123 |
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124 |
| 109 | 125 /** |
| 298 | 126 * Task を実行可能キューに追加する |
| 109 | 127 */ |
| 128 void | |
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129 TaskManagerImpl::append_activeTask(HTaskPtr q) |
| 109 | 130 { |
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131 activeTaskQueue->addLast(q); |
| 109 | 132 } |
| 133 | |
| 134 /** | |
| 298 | 135 * タスクが実行する CPU を選択する |
| 109 | 136 * |
| 298 | 137 * 現在は CPU_PPE, CPU_SPE, SPE_ANY, SPE_0, SPE_1, ..., SPE_5 |
| 138 * types.h に書いてます。 | |
| 109 | 139 */ |
| 65 | 140 void |
| 141 TaskManagerImpl::set_task_cpu(HTaskPtr task, CPU_TYPE type) | |
| 142 { | |
| 664 | 143 if (machineNum==0) |
| 144 task->cpu_type = CPU_PPE ; | |
| 145 else | |
| 146 task->cpu_type = type; | |
| 65 | 147 } |
| 148 | |
| 109 | 149 /** |
| 830 | 150 * @brief 終了したタスクから依存の処理とか |
| 298 | 151 * post_func() はこのタスクが終了したら実行する関数。 |
| 109 | 152 * |
| 298 | 153 * @param [task] 終了したタスク |
| 109 | 154 */ |
| 155 void | |
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156 TaskManagerImpl::check_task_finish(HTaskPtr me, HTaskInfo *wait_queue) |
| 42 | 157 { |
| 499 | 158 |
| 497 | 159 while(TaskQueue *p = me->wait_me->poll()) { |
| 499 | 160 HTaskPtr you = p->task; |
| 497 | 161 TaskQueueInfo *wait_i = you->wait_i; |
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162 // 相手の wait queue から自分(を指しているTaskQueue)を削除 |
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163 wait_i->remove(p->waiter); |
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164 // queue を free する |
| 493 | 165 wait_i->free_(p->waiter); |
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166 |
| 497 | 167 if (wait_i->empty()) { |
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168 wait_queue->remove(you); |
| 499 | 169 append_activeTask(you); |
| 497 | 170 } |
| 171 | |
| 493 | 172 wait_i->free_(p); |
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173 } |
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174 |
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175 htaskImpl->free_(me); |
| 109 | 176 } |
| 42 | 177 |
| 830 | 178 /** |
| 179 * @brief 終了したタスクリストの依存の処理 | |
| 180 * @param [task] 終了したタスク | |
| 181 */ | |
| 182 void | |
| 183 TaskManagerImpl::check_task_list_finish(SchedTask *s, TaskListPtr list, HTaskInfo *wait_queue) | |
| 184 { | |
| 855 | 185 for(int i = 0;i<list->length;i++) { |
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186 SimpleTaskPtr task = &list->tasks[i]; |
| 830 | 187 HTask *me = (HTask*)task->self; |
| 188 me->post_func(s, me->post_arg1, me->post_arg2); | |
| 189 if (task->command==TaskArray1) { | |
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190 int next = ((task->r_size)/sizeof(SimpleTask))+1; |
| 830 | 191 // assert(next<list->length); |
| 192 i+=next; | |
| 193 } | |
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194 s->polling(); |
| 830 | 195 check_task_finish(me, wait_queue); |
| 196 } | |
| 197 } | |
| 109 | 198 |
| 830 | 199 /** |
| 200 * @brief waitTaskqueue への挿入 。必須ではない。 | |
| 201 * 現状では、dead lock 検出にしか使ってない | |
| 202 * | |
| 203 * @param [task] 終了したタスク | |
| 204 */ | |
| 109 | 205 void |
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206 TaskManagerImpl::append_waitTask(HTaskPtr q) |
| 109 | 207 { |
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208 waitTaskQueue ->addLast(q); |
| 109 | 209 } |
| 210 | |
| 830 | 211 /** |
| 212 @brief htask を DMA でCPUに渡すための TaskList に入れる (copy) | |
| 213 @param htask | |
| 214 @param taskList | |
| 215 TaskList は自動的に延長される | |
| 216 */ | |
| 801 | 217 void |
| 218 TaskManagerImpl::set_taskList(HTaskPtr htask, TaskListInfoPtr taskList) { | |
| 809 | 219 TaskListPtr list ; |
| 220 if ( taskList->empty() ) { | |
| 221 list = taskList->create(); | |
| 222 taskList->addLast(list); | |
| 223 } else | |
| 224 list = taskList->getLast(); | |
| 801 | 225 SimpleTaskPtr task = &list->tasks[list->length++]; |
| 226 if (htask->command==TaskArray1) { | |
| 227 // compatibility | |
| 228 int next = ((htask->r_size)/sizeof(SimpleTask))+1; | |
| 229 if (list->length+next>=TASK_MAX_SIZE) { | |
| 230 list->length--; | |
| 809 | 231 TaskListPtr newList = taskList->create(); |
| 801 | 232 taskList->addLast(newList); |
| 233 list = newList; | |
| 234 task = &list->tasks[list->length++]; | |
| 235 } | |
| 236 Task *array = (Task*)&list->tasks[list->length]; | |
| 237 list->length += next; | |
| 238 if (list->length>=TASK_MAX_SIZE) { | |
| 239 perror("task array1 overflow\n"); | |
| 240 } | |
| 241 memcpy(array, htask->rbuf, htask->r_size); | |
| 242 free(htask->rbuf); | |
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243 // htask->rbuf = 0; htask->r_size = 0; we need this... |
| 801 | 244 *task = *(SimpleTask*)htask; |
| 245 } else { | |
| 246 *task = *(SimpleTask*)htask; | |
| 247 } | |
| 248 if (list->length >= TASK_MAX_SIZE) { | |
| 809 | 249 TaskListPtr newList = taskList->create(); |
| 801 | 250 taskList->addLast(newList); |
| 251 list = newList; | |
| 252 } | |
| 253 } | |
| 254 | |
| 54 | 255 |
| 619 | 256 |
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257 /* end */ |