annotate TaskManager/kernel/schedule/Scheduler.cc @ 386:6113af8f183b

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Thu, 06 Aug 2009 19:31:51 +0900
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children 5e2d30bfbf23
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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 #include <assert.h>
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8 /*
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9 * Edit kernel/schedule/xx.cc, Cell/spe/xx.cc will be over writen by this.
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10 * Do not edit Cell/spe/xx.cc unless there is no kernel/schedule/xx.cc files.
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11 */
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12
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13 Scheduler::TaskObject task_list[MAX_TASK_OBJECT];
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15 Scheduler::~Scheduler(void)
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16 {
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17 delete connector;
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18 }
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20 /*! @brief speTaskの入出力のパイプラインバッファを確保する
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21 */
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22
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23 void
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24 Scheduler::init(void)
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25 {
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26 init_impl();
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28 for (int i = 0; i < 2; i++) {
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29 buff_taskList[i] = (TaskListPtr)allocate(sizeof(TaskList));
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30 buff_inListData[i] = (ListDataPtr)allocate(sizeof(ListData));
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31 buff_outListData[i] = (ListDataPtr)allocate(sizeof(ListData));
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32 }
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34 buffFlag_taskList = 0;
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35 buffFlag_inListData = 0;
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36 buffFlag_outListData = 0;
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37 flag_renewTaskList = 0;
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38
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39 // bzero でもいいけど
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40 for (int i = 0; i < MAX_GLOBAL_AREA; i++) {
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41 globalList[i] = NULL;
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42 }
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43
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44 for (int i = 0; i < MAX_MAINMEM_AREA; i++) {
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45 mainMemList[i] = NULL;
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46 }
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49 taskGroup = new TaskGroup;
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50 renewTop_taskList = NULL;
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51 renewCur_taskList = NULL;
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52 }
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53
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54 void
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55 Scheduler::run(void)
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56 {
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57 SchedTaskBase* taskTmp;
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58
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59 task1 = new SchedNop();
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60 task2 = new SchedNop();
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61 task3 = new SchedNop();
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62
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63 // main loop
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64 do {
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65 __debug("----------\n");
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66 task3->write();
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67 task2->exec();
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68 task1->read();
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70 taskTmp = task3;
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71 task3 = task2;
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72 task2 = task1;
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73 task1 = task1->next(this, taskTmp);
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74 } while (task1);
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75
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76 delete task3;
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77 delete task2;
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78 }
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80
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81 void
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82 Scheduler::finish(void)
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83 {
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84 free(buff_taskList[0]);
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85 free(buff_taskList[1]);
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86 free(buff_inListData[0]);
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87 free(buff_inListData[1]);
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88 free(buff_outListData[0]);
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89 free(buff_outListData[1]);
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90 }
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91
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92 /**
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93 * あらかじめ memory allocte してある TaskList の領域を
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94 * パイプラインの各処理が交代して使う。
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95 */
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96 TaskListPtr
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97 Scheduler::get_curListBuf(void)
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98 {
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99 buffFlag_taskList ^= 1;
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100
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101 return buff_taskList[buffFlag_taskList];
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102 }
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103
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104
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105 /**
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106 * あらかじめ memory allocte してある ListData の領域を
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107 * パイプラインの各処理が交代して使う。
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108 */
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109 ListDataPtr
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110 Scheduler::get_curWriteBuf(void)
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111 {
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112 buffFlag_outListData ^= 1;
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113 return buff_outListData[buffFlag_outListData];
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114 }
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115
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116
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117 ListDataPtr
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118 Scheduler::get_curReadBuf(void)
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119 {
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120 buffFlag_inListData ^= 1;
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121 return buff_inListData[buffFlag_inListData];
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122 }
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123
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124 /**
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125 * 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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126 * 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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127 * 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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128 * コード中で renewCur_taskList が NULL になるのは
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129 * - プログラム開始時
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130 * - 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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131 * 以上の場合です
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132 */
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133 TaskListPtr
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134 Scheduler::get_renewListBuf(void)
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135 {
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136 if (renewCur_taskList && renewCur_taskList->length < TASK_MAX_SIZE) {
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137 return renewCur_taskList;
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138 } else {
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139 TaskListPtr newList = (TaskListPtr)allocate(sizeof(TaskList));
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140 newList->length = 0;
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141 newList->next = NULL;
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142 renewTop_taskList = TaskList::append(renewTop_taskList, newList);
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143 renewCur_taskList = newList;
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144 return newList;
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145 }
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146 }
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147
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148 /**
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149 * 次に実行する Renew Task List を返す
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150 *
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151 * @param[in] curList 現在実行中の TaskList
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152 * 中断して RenewTaskList を行うため
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153 * バックアップを取っておく
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154 * @return next RenewTaskList
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155 */
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156 SchedTaskList*
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157 Scheduler::get_nextRenewTaskList(void)
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158 {
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159 if (renewTop_taskList) {
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160 TaskListPtr list = renewTop_taskList;
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161 renewTop_taskList = renewTop_taskList->next;
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162 renewCur_taskList = NULL;
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163
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164 list->next = NULL;
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165 SchedTaskList *sched
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166 = createSchedTaskList((uint32)list, this, SCHED_TASKLIST_RENEW);
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167 return sched;
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168 } else {
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169 return NULL;
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170 }
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171 }
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172
187
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173 void
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174 Scheduler::set_backupTaskList(TaskListPtr cur_taskList)
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175 {
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176 bak_curTaskList = cur_taskList;
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177 }
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178
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179 void
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180 Scheduler::set_backupTaskListIndex(int cur_index)
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181 {
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182 bakIndex_taskList = cur_index;
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183 }
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184
184
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185 /**
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186 * RenewTaskList 実行前に中断した TaskList を返す
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187 * NULL の場合、中断した TaskList は無い。
184
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188 *
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189 * @return TaskList
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190 */
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191 TaskListPtr
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192 Scheduler::get_backupTaskList(void)
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193 {
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194 TaskListPtr ret = bak_curTaskList;
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195
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196 bak_curTaskList = NULL;
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197 return ret;
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198 }
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199
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200 int
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201 Scheduler::get_backupTaskListIndex(void)
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202 {
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203 int ret = bakIndex_taskList;
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204
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205 bakIndex_taskList = 0;
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206 return ret;
184
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207 }
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208
109
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209 void
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210 Scheduler::dma_load(void *buf, uint32 addr, uint32 size, uint32 mask)
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211 {
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212 connector->dma_load(buf, addr, size, mask);
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213 }
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214
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215 void
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216 Scheduler::dma_store(void *buf, uint32 addr, uint32 size, uint32 mask)
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217 {
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218 connector->dma_store(buf, addr, size, mask);
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219 }
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220
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221 void
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222 Scheduler::dma_wait(uint32 mask)
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223 {
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224 connector->dma_wait(mask);
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225 }
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226
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227 void
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228 Scheduler::dma_loadList(ListDataPtr list, void *buff, uint32 mask)
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229 {
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230 connector->dma_loadList(list, buff, mask);
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231 }
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232
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233
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234 void
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235 Scheduler::dma_storeList(ListDataPtr list, void *buff, uint32 mask)
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236 {
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237 return connector->dma_storeList(list, buff, mask);
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238 }
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239
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240 void
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241 Scheduler::mail_write(uint32 data)
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242 {
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243 connector->mail_write(data);
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244 }
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245
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246 uint32
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247 Scheduler::mail_read(void)
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248 {
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249 return connector->mail_read();
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250 }
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251
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252 TaskGroupPtr
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253 Scheduler::set_groupTask(uint32 command)
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254 {
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255 TaskGroupPtr ret = taskGroup;
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256
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257 reload_groupTask();
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258
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259 ret->command = command;
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260 return ret;
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261 }
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262
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263 void
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264 Scheduler::add_groupTask(TaskGroupPtr group, TaskPtr task)
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265 {
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266 group->add(task);
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267 }
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268
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269 void
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270 Scheduler::remove_groupTask(TaskGroupPtr group, TaskPtr task)
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271 {
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272 group->remove(task);
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273 }
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274
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275 void
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276 Scheduler::reload_groupTask(void)
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277 {
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278 taskGroup = new TaskGroup;
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279 }
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280
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281 uint32
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282 Scheduler::status_groupTask(TaskGroupPtr group)
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283 {
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284 return group->status();
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285 }
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286
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287 /*
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288 ここから下は、memory 以下にあるべき
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289 */
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290
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291 void*
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292 Scheduler::global_alloc(int id, int size)
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293 {
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294 globalList[id] = allocate(size);
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295 return globalList[id];
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296 }
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297
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298 void*
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299 Scheduler::global_get(int id)
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300 {
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301 return globalList[id];
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302 }
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303
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304 void
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305 Scheduler::global_set(int id, void *addr)
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306 {
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307 globalList[id] = addr;
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308 }
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309
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310 void
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311 Scheduler::global_free(int id)
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312 {
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313 free(globalList[id]);
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314 globalList[id] = NULL;
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315 }
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316
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317 /**
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318 * 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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319 * これは Fifo, Cell で共通
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320 */
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321 void*
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322 Scheduler::mainMem_get(int id)
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323 {
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324 return mainMemList[id];
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325 }
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326
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327
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328 /**
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329 * 本当は Scheduler クラスに入れるべきなんだろうか。。。
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330 * なんか手抜きの感がある
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331 */
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332 void
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333 register_task(int cmd, Scheduler::TaskObject task)
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334 {
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335 task_list[cmd] = task;
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336 }
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337
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338 /*!
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339
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340 size 単位のMemory Segment を count 個作る
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341
373
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342 @param [size] リストの要素1つのサイズ
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343 @param [count] 要素数
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344 @return allocate した領域のポインタ
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345
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346 */
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347 MemList*
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348 Scheduler::createMemList(int size, int count)
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349 {
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350 uint32 head_size = round_up16(sizeof(MemorySegment));
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351 uint32 seg_size = round_up16(head_size+size);
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352 char* mseg = (char*)allocate(seg_size*count);
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353 MemList* mlist = new MemList((MemorySegment*)mseg);
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354
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355 for(int i = 0; i < count; i++) {
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356 MemorySegment* next = (MemorySegment*)(mseg+seg_size*i);
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357 char* data = (char*)next+head_size;
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358 next->data = (void*)data;
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359 next->size = size;
373
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360 mlist->addLast(next);
eab18aa0c7f6 MemList not working
kazz@kazzone.cr.ie.u-ryukyu.ac.jp
parents: 356
diff changeset
361 }
eab18aa0c7f6 MemList not working
kazz@kazzone.cr.ie.u-ryukyu.ac.jp
parents: 356
diff changeset
362
eab18aa0c7f6 MemList not working
kazz@kazzone.cr.ie.u-ryukyu.ac.jp
parents: 356
diff changeset
363 return mlist;
eab18aa0c7f6 MemList not working
kazz@kazzone.cr.ie.u-ryukyu.ac.jp
parents: 356
diff changeset
364 }
386
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
365
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
366 /*!
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
367
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
368 Main Memory のSegmentを取得する
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
369
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
370 @param [addr] Main Memory のアドレス
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
371 @param [m] Mem List
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
372 @return allocate した領域のポインタ
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
373
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
374 memory directory にあるべきだが...
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
375
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
376 */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
377 MemorySegement *
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
378 Scheduler::get_segment(memaddr addr, MemList *m)
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
379 {
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
380 MemorySegment *s = hash->get(addr);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
381 if (s) {
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
382 /* 既に load されている */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
383 return s;
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
384 }
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
385
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
386 /* LRU なので、もっとも使われてない segment を上書きする */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
387 s = m->getLast();
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
388 m->moveToFirst(s);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
389
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
390 memaddr old_addr = s->address;
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
391 s->tag = getTag();
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
392 smanager->dma_load(s->data, addr,
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
393 s->size, s->tag);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
394 /* 前のをhashから削除 */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
395 hash->remove(old_addr);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
396 /* 新しいaddress を登録 */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
397 s->address = addr;
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
398 hash->put(s->address, s);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
399
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
400 return s;
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
401 }
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
402
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
403 uint32
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
404 Scheduler::get_tag()
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
405 {
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
406 return 0;
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
407 }
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
408
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
409 /*!
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
410
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
411 Main Memory のSegmentを書き出す
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
412 Segment は get_segement されていて、
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
413 追い出されていてはいけない。
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
414 それを保証するのは難しい?
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
415
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
416 @param [addr] Main Memory のアドレス
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
417 @param [m] Mem List
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
418 @return allocate した領域のポインタ
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
419
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
420 */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
421 void
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
422 Scheduler::put_segment(MemorySegment *s)
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
423 {
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
424 smanager->dma_store(s->data, s->addr,
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
425 s->size, s->tag);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
426 }
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
427
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
428 /*!
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
429
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
430 Main Memory のSegmentを読込、書き出しを待つ
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
431
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
432 @param [id] MemorySegment のid
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
433
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
434 */
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
435 void
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
436 Scheduelr::wait_segment(MemorySegment *s)
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
437 {
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
438 smanager->dma_wait(s->tag);
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
439 }
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
440
6113af8f183b MemHash...
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 373
diff changeset
441 /* end */