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annotate TaskManager/kernel/schedule/SchedTaskList.cc @ 683:9a6cb2439593

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 06 Dec 2009 18:53:46 +0900
parents 60aa3f241b10
children 6d497c098455
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1 #include <stdlib.h>
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2 #include <string.h>
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3 #include "SchedTaskList.h"
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4 #include "SchedTask.h"
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5 #include "SchedNop2Ready.h"
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6 #include "DmaManager.h"
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7 #include "error.h"
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8
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9 /**
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10 * SchedTaskList を返す
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11 *
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12 * @param[in] next_list 次の実行する TaskList のアドレス
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13 * @param[in] next_list がメインメモリのアドレスか、
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14 * SPE で生成されたアドレスかのフラグ
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15 * SPE で生成されている場合、DMA の必要は無い
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16 * 0: メインメモリ, 1: SPE
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17 */
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18 SchedTaskList*
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19 createSchedTaskList(memaddr next_list, Scheduler* scheduler, int renew_flag)
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20 {
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21 SchedTaskList* sched = new SchedTaskList(next_list, scheduler);
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22 return sched;
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23 }
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24
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25 SchedTaskList::SchedTaskList(memaddr addr, Scheduler *sched)
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26 {
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27 params_addr = addr;
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28 list = NULL;
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29 scheduler = sched;
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31 }
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34 void
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35 SchedTaskList::read()
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36 {
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37 __debug("[SchedTaskList:%s]\n", __FUNCTION__);
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38
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39 list = scheduler->get_curListBuf();
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40 scheduler->dma_load(list, params_addr,
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41 sizeof(TaskList), DMA_READ_TASKLIST);
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42 }
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44 SchedTaskBase*
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45 SchedTaskList::next(Scheduler *scheduler, SchedTaskBase *p)
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46 {
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47 SchedTaskBase *nextSched;
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49 __debug("[SchedTaskList:%s]\n", __FUNCTION__);
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50
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51 scheduler->dma_wait(DMA_READ_TASKLIST);
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52 if (list->length < 1) {
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53 nextSched = new SchedNop2Ready(scheduler);
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54 } else {
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55 #ifdef SIMPLE_TASK
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56 SimpleTaskPtr nextTask = &list->tasks[0];
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57 #else
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58 TaskPtr nextTask = &list->tasks[0];
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59 #endif
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60 nextSched = createSchedTask(scheduler, nextTask);
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61 ((SchedTask*)nextSched)->init(list, nextTask, 1,
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62 scheduler);
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63 }
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65 return nextSched;
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66 }
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68 /* end */