Mercurial > hg > Members > kono > Cerium
annotate TaskManager/kernel/ppe/TaskManagerImpl.cc @ 831:65e9eab53f50
CheckTaskList Mail working
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 25 May 2010 17:48:39 +0900 |
| parents | c7905ead974f |
| children | 29094b48d966 |
| 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 | |
| 109 | 20 TaskManagerImpl::TaskManagerImpl(int num) |
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21 : machineNum(num) { |
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22 activeTaskQueue = new HTaskInfo(); |
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23 waitTaskQueue = new HTaskInfo(); |
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24 htaskImpl = waitTaskQueue ; // any HTaskInfo |
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25 taskQueueImpl = new TaskQueueInfo(); |
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26 } |
| 50 | 27 |
| 220 | 28 /** |
| 298 | 29 * 一番最初に PPE で実行される systask_start |
| 220 | 30 */ |
| 42 | 31 void |
| 499 | 32 TaskManagerImpl::systask_init() |
| 42 | 33 { |
| 109 | 34 systask_register(); |
| 639 | 35 systask_start = create_task(StartTask,0,0,0,0); |
| 36 systask_finish = create_task(FinishTask,0,0,0,0); | |
| 220 | 37 |
| 38 systask_start->spawn(); | |
| 39 | |
| 634 | 40 // すべての Task が FinishTask を wait_for すると、 |
| 41 // あらゆる Task が FinishTask の waiting task queue を操作する | |
| 42 // ことになる。それは、重すぎる。PPE/SPE Task が終了した時点で、 | |
| 43 // TaskManager が実行する方が安い。 | |
| 44 // append_waitTask(systask_finish); | |
| 45 } | |
| 46 | |
| 47 HTaskPtr | |
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48 TaskManagerImpl::create_task(int cmd,memaddr rbuf, long r_size, memaddr wbuf, long w_size) |
| 634 | 49 { |
| 50 HTaskPtr new_task; | |
| 51 | |
| 52 new_task = htaskImpl->create(cmd, rbuf, r_size, wbuf, w_size); | |
| 53 new_task->post_func = noaction; | |
| 54 new_task->mimpl = this; | |
| 55 | |
| 56 return new_task; | |
| 42 | 57 } |
| 58 | |
| 3 | 59 HTaskPtr |
| 109 | 60 TaskManagerImpl::create_task(int cmd) |
| 3 | 61 { |
| 62 HTaskPtr new_task; | |
| 63 | |
| 703 | 64 // for compatibility |
| 65 new_task = htaskImpl->create(TaskArray1); | |
| 66 new_task->post_func = noaction; | |
| 67 new_task->mimpl = this; | |
| 736 | 68 new_task->create_task_array(cmd,1,8,8,8); |
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69 // rbuf, r_size were set |
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70 new_task->command = TaskArray1; |
| 63 | 71 |
| 3 | 72 return new_task; |
| 73 } | |
| 74 | |
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75 HTaskPtr |
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76 TaskManagerImpl::create_task_array(int id, int num_task, int num_param, int num_inData, int num_outData) |
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77 { |
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78 HTaskPtr ta = create_task(TaskArray,0,0,0,0); |
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79 ta->create_task_array(id, num_task, num_param, num_inData, num_outData) ; |
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80 return ta; |
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81 } |
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82 |
| 3 | 83 /** |
| 298 | 84 * task の依存関係を設定 |
| 85 * master task が終わってから、slave task を実行するように | |
| 109 | 86 * master->wait_for(slave); |
| 3 | 87 */ |
| 88 void | |
| 89 TaskManagerImpl::set_task_depend(HTaskPtr master, HTaskPtr slave) | |
| 519 | 90 { |
| 3 | 91 TaskQueuePtr m, s; |
| 519 | 92 |
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93 m = taskQueueImpl->create(master); |
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94 s = taskQueueImpl->create(slave); |
| 519 | 95 |
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96 master->wait_me->addLast(s); |
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97 slave->wait_i->addLast(m); |
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98 s->waiter = m; |
| 519 | 99 } |
| 100 | |
| 3 | 101 /** |
| 298 | 102 * タスクを実行可能キューまたは待機キューへ追加する。 |
| 103 * 依存関係が満たされていれば active, まだだったら wait へ。 | |
| 109 | 104 * task->spawn(); |
| 105 */ | |
| 3 | 106 void |
| 18 | 107 TaskManagerImpl::spawn_task(HTaskPtr task) |
| 3 | 108 { |
| 109 | 109 // waiter // master |
| 110 // waitee // slave | |
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111 if (task->wait_i->empty()) { |
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112 append_activeTask(task); |
| 3 | 113 } else { |
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114 append_waitTask(task); |
| 3 | 115 } |
| 109 | 116 |
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117 // systask_finish->wait_for(task); |
| 3 | 118 } |
| 42 | 119 |
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120 |
| 109 | 121 /** |
| 298 | 122 * Task を実行可能キューに追加する |
| 109 | 123 */ |
| 124 void | |
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125 TaskManagerImpl::append_activeTask(HTaskPtr q) |
| 109 | 126 { |
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127 activeTaskQueue->addLast(q); |
| 109 | 128 } |
| 129 | |
| 130 /** | |
| 298 | 131 * タスクが実行する CPU を選択する |
| 109 | 132 * |
| 298 | 133 * 現在は CPU_PPE, CPU_SPE, SPE_ANY, SPE_0, SPE_1, ..., SPE_5 |
| 134 * types.h に書いてます。 | |
| 109 | 135 */ |
| 65 | 136 void |
| 137 TaskManagerImpl::set_task_cpu(HTaskPtr task, CPU_TYPE type) | |
| 138 { | |
| 664 | 139 if (machineNum==0) |
| 140 task->cpu_type = CPU_PPE ; | |
| 141 else | |
| 142 task->cpu_type = type; | |
| 65 | 143 } |
| 144 | |
| 109 | 145 /** |
| 830 | 146 * @brief 終了したタスクから依存の処理とか |
| 298 | 147 * post_func() はこのタスクが終了したら実行する関数。 |
| 109 | 148 * |
| 298 | 149 * @param [task] 終了したタスク |
| 109 | 150 */ |
| 151 void | |
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152 TaskManagerImpl::check_task_finish(HTaskPtr me, HTaskInfo *wait_queue) |
| 42 | 153 { |
| 499 | 154 |
| 497 | 155 while(TaskQueue *p = me->wait_me->poll()) { |
| 499 | 156 HTaskPtr you = p->task; |
| 497 | 157 TaskQueueInfo *wait_i = you->wait_i; |
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158 // 相手の wait queue から自分(を指しているTaskQueue)を削除 |
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159 wait_i->remove(p->waiter); |
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160 // queue を free する |
| 493 | 161 wait_i->free_(p->waiter); |
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162 |
| 497 | 163 if (wait_i->empty()) { |
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164 wait_queue->remove(you); |
| 499 | 165 append_activeTask(you); |
| 497 | 166 } |
| 167 | |
| 493 | 168 wait_i->free_(p); |
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169 } |
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170 |
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171 htaskImpl->free_(me); |
| 109 | 172 } |
| 42 | 173 |
| 830 | 174 /** |
| 175 * @brief 終了したタスクリストの依存の処理 | |
| 176 * @param [task] 終了したタスク | |
| 177 */ | |
| 178 void | |
| 179 TaskManagerImpl::check_task_list_finish(SchedTask *s, TaskListPtr list, HTaskInfo *wait_queue) | |
| 180 { | |
| 181 for(int i = 0;i<list->length;i++) { | |
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182 SimpleTaskPtr task = &list->tasks[i]; |
| 830 | 183 HTask *me = (HTask*)task->self; |
| 184 me->post_func(s, me->post_arg1, me->post_arg2); | |
| 185 if (task->command==TaskArray1) { | |
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186 int next = ((task->r_size)/sizeof(SimpleTask))+1; |
| 830 | 187 // assert(next<list->length); |
| 188 i+=next; | |
| 189 } | |
| 190 check_task_finish(me, wait_queue); | |
| 191 } | |
| 192 } | |
| 109 | 193 |
| 830 | 194 /** |
| 195 * @brief waitTaskqueue への挿入 。必須ではない。 | |
| 196 * 現状では、dead lock 検出にしか使ってない | |
| 197 * | |
| 198 * @param [task] 終了したタスク | |
| 199 */ | |
| 109 | 200 void |
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201 TaskManagerImpl::append_waitTask(HTaskPtr q) |
| 109 | 202 { |
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203 waitTaskQueue ->addLast(q); |
| 109 | 204 } |
| 205 | |
| 830 | 206 /** |
| 207 @brief htask を DMA でCPUに渡すための TaskList に入れる (copy) | |
| 208 @param htask | |
| 209 @param taskList | |
| 210 TaskList は自動的に延長される | |
| 211 */ | |
| 801 | 212 void |
| 213 TaskManagerImpl::set_taskList(HTaskPtr htask, TaskListInfoPtr taskList) { | |
| 809 | 214 TaskListPtr list ; |
| 215 if ( taskList->empty() ) { | |
| 216 list = taskList->create(); | |
| 217 taskList->addLast(list); | |
| 218 } else | |
| 219 list = taskList->getLast(); | |
| 801 | 220 SimpleTaskPtr task = &list->tasks[list->length++]; |
| 221 if (htask->command==TaskArray1) { | |
| 222 // compatibility | |
| 223 int next = ((htask->r_size)/sizeof(SimpleTask))+1; | |
| 224 if (list->length+next>=TASK_MAX_SIZE) { | |
| 225 list->length--; | |
| 809 | 226 TaskListPtr newList = taskList->create(); |
| 801 | 227 taskList->addLast(newList); |
| 228 list = newList; | |
| 229 task = &list->tasks[list->length++]; | |
| 230 } | |
| 231 Task *array = (Task*)&list->tasks[list->length]; | |
| 232 list->length += next; | |
| 233 if (list->length>=TASK_MAX_SIZE) { | |
| 234 perror("task array1 overflow\n"); | |
| 235 } | |
| 236 memcpy(array, htask->rbuf, htask->r_size); | |
| 237 free(htask->rbuf); | |
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238 // htask->rbuf = 0; htask->r_size = 0; we need this... |
| 801 | 239 *task = *(SimpleTask*)htask; |
| 240 } else { | |
| 241 *task = *(SimpleTask*)htask; | |
| 242 } | |
| 243 if (list->length >= TASK_MAX_SIZE) { | |
| 809 | 244 TaskListPtr newList = taskList->create(); |
| 801 | 245 taskList->addLast(newList); |
| 246 list = newList; | |
| 247 } | |
| 248 } | |
| 249 | |
| 54 | 250 |
| 619 | 251 |
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252 /* end */ |