annotate TaskManager/kernel/schedule/Scheduler.cc @ 298:58fd16298954

from EUC to UTF-8
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 07 Jun 2009 15:17:41 +0900
parents d734af296d38
children bcb81858aa62
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include "Scheduler.h"
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4 #include "SchedNop.h"
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5 #include "error.h"
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6
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7 Scheduler::TaskObject task_list[MAX_TASK_OBJECT];
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9 Scheduler::~Scheduler(void)
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10 {
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11 delete connector;
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12 }
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14 void
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15 Scheduler::init(void)
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16 {
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17 init_impl();
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19 for (int i = 0; i < 2; i++) {
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20 buff_taskList[i] = (TaskListPtr)allocate(sizeof(TaskList));
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21 buff_inListData[i] = (ListDataPtr)allocate(sizeof(ListData));
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22 buff_outListData[i] = (ListDataPtr)allocate(sizeof(ListData));
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23 }
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25 buffFlag_taskList = 0;
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26 buffFlag_inListData = 0;
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27 buffFlag_outListData = 0;
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28 flag_renewTaskList = 0;
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29
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30 // bzero でもいいけど
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31 for (int i = 0; i < MAX_GLOBAL_AREA; i++) {
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32 globalList[i] = NULL;
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33 }
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34
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35 for (int i = 0; i < MAX_MAINMEM_AREA; i++) {
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36 mainMemList[i] = NULL;
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37 }
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40 taskGroup = new TaskGroup;
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41 renewTop_taskList = NULL;
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42 renewCur_taskList = NULL;
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43 }
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45 void
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46 Scheduler::run(void)
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47 {
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48 SchedTaskBase* taskTmp;
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50 task1 = new SchedNop();
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51 task2 = new SchedNop();
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52 task3 = new SchedNop();
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53
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54 // main loop
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55 do {
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56 __debug("----------\n");
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57 task3->write();
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58 task2->exec();
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59 task1->read();
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60
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61 taskTmp = task3;
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62 task3 = task2;
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63 task2 = task1;
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64 task1 = task1->next(this, taskTmp);
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65 } while (task1);
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67 delete task3;
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68 delete task2;
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69 }
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72 void
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73 Scheduler::finish(void)
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74 {
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75 free(buff_taskList[0]);
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76 free(buff_taskList[1]);
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77 free(buff_inListData[0]);
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78 free(buff_inListData[1]);
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79 free(buff_outListData[0]);
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80 free(buff_outListData[1]);
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81 }
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82
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83 /**
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84 * あらかじめ memory allocte してある TaskList の領域を
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85 * パイプラインの各処理が交代して使う。
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86 */
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87 TaskListPtr
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88 Scheduler::get_curListBuf(void)
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89 {
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90 buffFlag_taskList ^= 1;
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91
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92 return buff_taskList[buffFlag_taskList];
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93 }
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96 /**
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97 * あらかじめ memory allocte してある ListData の領域を
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98 * パイプラインの各処理が交代して使う。
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99 */
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100 ListDataPtr
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101 Scheduler::get_curWriteBuf(void)
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102 {
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103 buffFlag_outListData ^= 1;
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104 return buff_outListData[buffFlag_outListData];
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105 }
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108 ListDataPtr
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109 Scheduler::get_curReadBuf(void)
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110 {
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111 buffFlag_inListData ^= 1;
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112 return buff_inListData[buffFlag_inListData];
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113 }
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114
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115 /**
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116 * タスク内で生成されたタスクを格納する TaskList を取得する
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117 * 現在格納に使っている TaskList (renewCur_taskList) が使えるならそれを返す
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118 * もしそうでないなら、新しく TaskList を allocate してそれを返す
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119 * コード中で renewCur_taskList が NULL になるのは
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120 * - プログラム開始時
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121 * - タスク内生成タスクがある TaskList の実行を新しく始める (Nop2Ready 参照)
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122 * 以上の場合です
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123 */
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124 TaskListPtr
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125 Scheduler::get_renewListBuf(void)
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126 {
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127 if (renewCur_taskList && renewCur_taskList->length < TASK_MAX_SIZE) {
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128 return renewCur_taskList;
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129 } else {
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130 TaskListPtr newList = (TaskListPtr)allocate(sizeof(TaskList));
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131 newList->length = 0;
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132 newList->next = NULL;
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133 renewTop_taskList = TaskList::append(renewTop_taskList, newList);
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134 renewCur_taskList = newList;
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135 return newList;
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136 }
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137 }
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138
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139 /**
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140 * 次に実行する Renew Task List を返す
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141 *
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142 * @param[in] curList 現在実行中の TaskList
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143 * 中断して RenewTaskList を行うため
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144 * バックアップを取っておく
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145 * @return next RenewTaskList
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146 */
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147 SchedTaskList*
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148 Scheduler::get_nextRenewTaskList(void)
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149 {
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150 if (renewTop_taskList) {
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151 TaskListPtr list = renewTop_taskList;
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152 renewTop_taskList = renewTop_taskList->next;
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153 renewCur_taskList = NULL;
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154
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155 list->next = NULL;
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156 SchedTaskList *sched
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157 = createSchedTaskList((uint32)list, this, SCHED_TASKLIST_RENEW);
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158 return sched;
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159 } else {
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160 return NULL;
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161 }
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162 }
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163
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164 void
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165 Scheduler::set_backupTaskList(TaskListPtr cur_taskList)
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166 {
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167 bak_curTaskList = cur_taskList;
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168 }
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169
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170 void
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171 Scheduler::set_backupTaskListIndex(int cur_index)
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172 {
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173 bakIndex_taskList = cur_index;
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174 }
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175
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176 /**
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177 * RenewTaskList 実行前に中断した TaskList を返す
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178 * NULL の場合、中断した TaskList は無い。
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179 *
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180 * @return TaskList
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181 */
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182 TaskListPtr
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183 Scheduler::get_backupTaskList(void)
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184 {
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185 TaskListPtr ret = bak_curTaskList;
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186
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187 bak_curTaskList = NULL;
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188 return ret;
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189 }
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190
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191 int
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192 Scheduler::get_backupTaskListIndex(void)
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193 {
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194 int ret = bakIndex_taskList;
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195
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196 bakIndex_taskList = 0;
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197 return ret;
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198 }
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199
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200 void
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201 Scheduler::dma_load(void *buf, uint32 addr, uint32 size, uint32 mask)
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202 {
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203 connector->dma_load(buf, addr, size, mask);
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204 }
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205
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206 void
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207 Scheduler::dma_store(void *buf, uint32 addr, uint32 size, uint32 mask)
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208 {
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209 connector->dma_store(buf, addr, size, mask);
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210 }
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211
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212 void
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213 Scheduler::dma_wait(uint32 mask)
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214 {
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215 connector->dma_wait(mask);
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216 }
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217
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218 void
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219 Scheduler::dma_loadList(ListDataPtr list, void *buff, uint32 mask)
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220 {
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221 connector->dma_loadList(list, buff, mask);
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222 }
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223
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224
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225 void
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226 Scheduler::dma_storeList(ListDataPtr list, void *buff, uint32 mask)
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227 {
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228 return connector->dma_storeList(list, buff, mask);
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229 }
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230
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231 void
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232 Scheduler::mail_write(uint32 data)
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233 {
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234 connector->mail_write(data);
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235 }
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236
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237 uint32
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238 Scheduler::mail_read(void)
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239 {
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240 return connector->mail_read();
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241 }
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242
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243 TaskGroupPtr
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244 Scheduler::set_groupTask(uint32 command)
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245 {
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246 TaskGroupPtr ret = taskGroup;
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247
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248 reload_groupTask();
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249
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250 ret->command = command;
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251 return ret;
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252 }
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253
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254 void
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255 Scheduler::add_groupTask(TaskGroupPtr group, TaskPtr task)
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256 {
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257 group->add(task);
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258 }
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259
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260 void
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261 Scheduler::remove_groupTask(TaskGroupPtr group, TaskPtr task)
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262 {
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263 group->remove(task);
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264 }
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265
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266 void
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267 Scheduler::reload_groupTask(void)
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268 {
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269 taskGroup = new TaskGroup;
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270 }
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271
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272 uint32
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273 Scheduler::status_groupTask(TaskGroupPtr group)
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274 {
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275 return group->status();
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276 }
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277
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278 void*
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279 Scheduler::global_alloc(int id, int size)
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280 {
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281 globalList[id] = allocate(size);
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282 return globalList[id];
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283 }
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284
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285 void*
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286 Scheduler::global_get(int id)
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287 {
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288 return globalList[id];
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289 }
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290
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291 void
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292 Scheduler::global_free(int id)
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293 {
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294 free(globalList[id]);
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295 globalList[id] = NULL;
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296 }
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297
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298 /**
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299 * mainMem_alloc で確保したメインメモリの領域アドレスを返す。
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300 * これは Fifo, Cell で共通
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301 */
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302 void*
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303 Scheduler::mainMem_get(int id)
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304 {
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305 return mainMemList[id];
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306 }
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307
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308
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309 /**
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310 * 本当は Scheduler クラスに入れるべきなんだろうか。。。
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311 * なんか手抜きの感がある
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312 */
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313 void
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314 register_task(int cmd, Scheduler::TaskObject task)
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315 {
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316 task_list[cmd] = task;
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317 }