Mercurial > hg > Members > kono > Cerium
annotate TaskManager/kernel/schedule/SchedTask.cc @ 421:cd77224d4224
Code load implementation... (not yet tested)
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 24 Sep 2009 16:04:23 +0900 |
| parents | 8611780d479f |
| children | 95c0457a7d31 |
| rev | line source |
|---|---|
| 308 | 1 #include <stdlib.h> |
| 2 #include <string.h> | |
| 42 | 3 #include "SchedTask.h" |
| 308 | 4 #include "SchedTaskList.h" |
| 5 #include "SchedNop2Ready.h" | |
| 6 #include "DmaManager.h" | |
| 7 #include "error.h" | |
| 8 #include "TaskManager.h" | |
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9 |
| 308 | 10 extern Scheduler::TaskObject task_list[MAX_TASK_OBJECT]; |
| 11 | |
| 373 | 12 //#define NO_PIPELINE |
| 308 | 13 |
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14 /** |
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15 Task Object を作る |
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16 code loading ならば、loading の終了を待つ |
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17 */ |
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18 |
| 308 | 19 SchedTask * |
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20 createSchedTask(Scheduler *scheduler, TaskPtr task) |
| 302 | 21 { |
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22 task_list[task->command].wait(scheduler,task->command); |
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23 return task_list[task->command].creator(scheduler); |
| 308 | 24 } |
| 25 | |
| 373 | 26 |
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27 /** |
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28 code load を始める。既に get_segment hash に入っていれば何もしない。 |
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29 最初の一回は SchedTaskList:: next から呼ばれる。 |
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30 この段階では、SchedTask object は、まだ作られてない。 |
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31 */ |
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32 void |
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33 loadSchedTask(Scheduler *scheduler,TaskPtr task) |
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34 { |
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35 task_list[task->command].load(scheduler,task->command); |
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36 } |
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37 |
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38 |
| 308 | 39 SchedTask::SchedTask() |
| 40 { | |
| 41 __list = NULL; | |
| 42 __task = NULL; | |
| 43 __inListData = NULL; | |
| 44 __outListData = NULL; | |
| 45 __readbuf = NULL; | |
| 46 __writebuf = NULL; | |
| 47 __scheduler = NULL; | |
| 48 __taskGroup = NULL; | |
| 49 __renew_flag = 0; | |
| 50 __cur_index = 0; | |
| 51 __flag_renewTask = SCHED_TASK_NORMAL; | |
| 373 | 52 |
| 308 | 53 ex_init = &SchedTask::ex_init_normal; |
| 54 ex_read = &SchedTask::ex_read_normal; | |
| 55 ex_exec = &SchedTask::ex_exec_normal; | |
| 56 ex_write = &SchedTask::ex_write_normal; | |
| 57 ex_next = &SchedTask::ex_next_normal; | |
| 58 | |
| 59 run_func = &SchedTask::run; | |
| 373 | 60 run_func1 = &SchedTask::run; |
| 308 | 61 } |
| 62 | |
| 63 /** | |
| 64 * dma_store の wait を行う | |
| 65 * このタスクが RenewTask だった場合、 | |
| 66 * __inListData や __outListData は | |
| 67 * Scheduler の持つ、使い回しの buffer ではなく | |
| 68 * 新たに allocate されたものなので、ここで free する | |
| 69 */ | |
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70 SchedTask::~SchedTask() |
| 308 | 71 { |
| 72 if (__flag_renewTask == SCHED_TASK_RENEW) { | |
| 373 | 73 free(__inListData); |
| 308 | 74 free(__outListData); |
| 373 | 75 |
| 76 /** | |
| 77 * __list != NULL の場合、 | |
| 78 * この Task が __list の最後の Task になるので (SchedTask::next 参照) | |
| 79 * このタイミングで __list を解放する | |
| 80 * (free に渡されるアドレスが正しいものとなる)。 | |
| 81 * それ以外の Task では当然解放しない。 | |
| 82 * __list == NULL なので、free に渡しても無問題 | |
| 83 */ | |
| 84 free(__list); | |
| 308 | 85 } |
| 86 | |
| 321 | 87 |
| 308 | 88 } |
| 89 | |
| 373 | 90 /** |
| 308 | 91 * このタスクを Renew Task とし、それに応じた関数をセットする |
| 92 */ | |
| 93 void | |
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94 SchedTask::__setRenew() |
| 308 | 95 { |
| 96 __flag_renewTask = SCHED_TASK_RENEW; | |
| 97 | |
| 98 ex_init = &SchedTask::ex_init_renew; | |
| 99 ex_read = &SchedTask::ex_read_renew; | |
| 100 ex_exec = &SchedTask::ex_exec_renew; | |
| 373 | 101 ex_write = &SchedTask::ex_write_renew; |
| 308 | 102 ex_next = &SchedTask::ex_next_renew; |
| 103 } | |
| 104 | |
| 105 void | |
| 106 SchedTask::__init__(TaskListPtr _list, TaskPtr _task, int index, | |
| 373 | 107 ListDataPtr rbuf, ListDataPtr wbuf, Scheduler* sc) |
| 308 | 108 { |
| 109 __list = _list; | |
| 110 __task = _task; | |
| 111 __inListData = rbuf; | |
| 112 __outListData = wbuf; | |
| 113 __scheduler = sc; | |
| 114 __cur_index = index; | |
| 115 | |
| 116 __scheduler->mainMem_wait(); | |
| 117 | |
| 118 (this->*ex_init)(); | |
| 119 } | |
| 120 | |
| 121 /** | |
| 122 * PPE 内で生成されたタスクの ex_init() | |
| 123 */ | |
| 124 void | |
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125 SchedTask::ex_init_normal() |
| 308 | 126 { |
| 127 __scheduler->dma_load(__inListData, (uint32)__task->inData, | |
| 373 | 128 sizeof(ListData), DMA_READ_IN_LIST); |
| 308 | 129 __scheduler->dma_load(__outListData, (uint32)__task->outData, |
| 373 | 130 sizeof(ListData), DMA_READ_OUT_LIST); |
| 308 | 131 #if defined(NO_PIPELINE) |
| 132 __scheduler->dma_wait(DMA_READ_IN_LIST); | |
| 133 __scheduler->dma_wait(DMA_READ_OUT_LIST); | |
| 134 #endif | |
| 373 | 135 |
| 308 | 136 __taskGroup = new TaskGroup; |
| 137 __taskGroup->command = __task->self; | |
| 138 } | |
| 139 | |
| 140 /** | |
| 141 * SPE 内で生成されたタスクの ex_init() | |
| 142 * 各データは SPE 内の create_task 時に生成もしくは引き継がれているので | |
| 143 * ex_init_normal() と違い、ここでは値を渡すだけ | |
| 144 */ | |
| 145 void | |
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146 SchedTask::ex_init_renew() |
| 308 | 147 { |
| 148 __inListData = __task->inData; | |
| 149 __outListData = __task->outData; | |
| 373 | 150 __taskGroup = (TaskGroupPtr)__task->self; |
| 308 | 151 } |
| 152 | |
| 153 /** | |
| 154 * [Todo] | |
| 155 * データの読み込み場所を readbuf ではなく、 | |
| 156 * ユーザ自身で決めれるようになるといいかもしれない。 | |
| 157 * | |
| 158 * # TaskManager が勝手に消すことなく、 | |
| 159 * # ユーザが SPE 上に持ち続けることができるため。 | |
| 160 * # もちろん管理はユーザに任せるわけだ。 | |
| 161 */ | |
| 162 void | |
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163 SchedTask::read() |
| 373 | 164 { |
| 308 | 165 __debug("[SchedTask:%s]\n", __FUNCTION__); |
| 166 | |
| 167 #if !defined(NO_PIPELINE) | |
| 168 __scheduler->dma_wait(DMA_READ_IN_LIST); | |
| 169 __scheduler->dma_wait(DMA_READ_OUT_LIST); | |
| 170 #endif | |
| 171 | |
| 172 __writebuf = __scheduler->allocate(__outListData->size); | |
| 373 | 173 |
| 308 | 174 // 読むデータが一つもなければ無視 |
| 175 if (__inListData->length == 0) return; | |
| 176 | |
| 177 // load Input Data | |
| 178 __readbuf = __scheduler->allocate(__inListData->size); | |
| 179 __scheduler->dma_loadList(__inListData, __readbuf, DMA_READ); | |
| 180 | |
| 181 #if defined(NO_PIPELINE) | |
| 182 __scheduler->dma_wait(DMA_READ); | |
| 183 #endif | |
| 184 | |
| 185 (this->*ex_read)(); | |
| 186 } | |
| 187 | |
| 188 void | |
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189 SchedTask::exec() |
| 308 | 190 { |
| 191 __debug("[SchedTask:%s]\n", __FUNCTION__); | |
| 192 | |
| 193 #if !defined(NO_PIPELINE) | |
| 194 __scheduler->dma_wait(DMA_READ); | |
| 195 #endif | |
| 196 | |
| 197 //run(__readbuf, __writebuf); | |
| 198 (this->*run_func)(__readbuf, __writebuf); | |
| 316 | 199 (this->*run_func1)(this, __readbuf, __writebuf); |
| 308 | 200 |
| 201 free(__readbuf); | |
| 202 | |
| 203 if (__taskGroup->status() != 0) { | |
| 373 | 204 __task->self = __taskGroup->command; |
| 205 delete __taskGroup; | |
| 206 __taskGroup = NULL; | |
| 308 | 207 } |
| 208 | |
| 209 | |
| 210 // 書き込む領域がなければ無視 | |
| 211 if (__outListData->length > 0) { | |
| 373 | 212 __scheduler->dma_storeList(__outListData, __writebuf, DMA_WRITE); |
| 308 | 213 |
| 214 #if defined(NO_PIPELINE) | |
| 373 | 215 __scheduler->dma_wait(DMA_WRITE); |
| 216 free(__writebuf); | |
| 308 | 217 #endif |
| 218 } | |
| 219 | |
| 220 (this->*ex_exec)(); | |
| 221 } | |
| 222 | |
| 223 void | |
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224 SchedTask::write() |
| 308 | 225 { |
| 226 __debug("[SchedTask:%s]\n", __FUNCTION__); | |
| 373 | 227 |
| 308 | 228 #if !defined(NO_PIPELINE) |
| 229 __scheduler->dma_wait(DMA_WRITE); | |
| 230 free(__writebuf); | |
| 231 #endif | |
| 232 | |
| 233 if (__task->self == MY_SPE_NOP) return; | |
| 234 | |
| 235 (this->*ex_write)(); | |
| 236 } | |
| 237 | |
| 238 /** | |
| 239 * PPE 内で生成されたタスクの ex_read() | |
| 240 */ | |
| 241 void | |
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242 SchedTask::ex_read_normal() |
| 308 | 243 { |
| 244 } | |
| 245 | |
| 246 /** | |
| 247 * SPE 内で生成されたタスクの ex_read() | |
| 248 */ | |
| 249 void | |
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250 SchedTask::ex_read_renew() |
| 308 | 251 { |
| 252 } | |
| 253 | |
| 254 /** | |
| 255 * PPE 内で生成されたタスクの ex_exec() | |
| 256 */ | |
| 257 void | |
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258 SchedTask::ex_exec_normal() |
| 308 | 259 { |
| 260 } | |
| 261 | |
| 262 /** | |
| 263 * SPE 内で生成されたタスクの ex_exec() | |
| 264 */ | |
| 265 void | |
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266 SchedTask::ex_exec_renew() |
| 308 | 267 { |
| 268 } | |
| 269 | |
| 270 | |
| 271 | |
| 272 /** | |
| 273 * PPE 内で生成されたタスクの ex_write() | |
| 373 | 274 * |
| 308 | 275 * このタスク内で新たにタスクが生成され、 |
| 276 * 且つそのタスクの終了を待つ必要がある場合、 | |
| 277 * PPE に終了したことは知らせない(command は送信しない) | |
| 278 */ | |
| 279 void | |
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280 SchedTask::ex_write_normal() |
| 308 | 281 { |
| 282 /** | |
| 283 * このタスク内で新たにタスクが生成されなかった | |
| 284 * or 生成されたが、そのタスクの終了を待つ必要は無い | |
| 285 */ | |
| 286 if (__renew_flag == 0) { | |
| 373 | 287 __scheduler->mail_write(__task->self); |
| 308 | 288 } |
| 302 | 289 } |
| 290 | |
| 308 | 291 /** |
| 292 * SPE 内で生成されたタスクの ex_write() | |
| 293 * | |
| 294 * A <- 親タスク | |
| 295 * | \ | |
| 296 * B C <- SPE 内で生成されたタスク | |
| 297 * | |
| 298 * A は SPE 内で B, C を生成したとする。 | |
| 299 * B と C が終了したら、A が PPE に送るはずだったコマンドが | |
| 300 * 子タスクに引き継がれているので、最後に実行された子タスクが | |
| 301 * PPE に mail 送信する。 | |
| 302 */ | |
| 303 void | |
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304 SchedTask::ex_write_renew() |
| 308 | 305 { |
| 306 uint32 cmd; | |
| 373 | 307 |
| 308 | 308 __taskGroup->remove(__task); |
| 373 | 309 cmd = __taskGroup->status(); |
| 308 | 310 |
| 311 // タスク内で作られた全てのタスクが終了した | |
| 312 if (cmd != 0) { | |
| 373 | 313 delete __taskGroup; |
| 314 __scheduler->mail_write(cmd); | |
| 308 | 315 } |
| 316 } | |
| 373 | 317 |
| 308 | 318 SchedTaskBase* |
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319 SchedTask::next(Scheduler *scheduler, SchedTaskBase *p) |
| 308 | 320 { |
| 321 __debug("[SchedTask:%s]\n", __FUNCTION__); | |
| 322 | |
| 323 delete p; | |
| 324 | |
| 325 return (this->*ex_next)(); | |
| 326 } | |
| 327 | |
| 328 SchedTaskBase* | |
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329 SchedTask::ex_next_normal() |
| 308 | 330 { |
| 331 if (__cur_index < __list->length) { | |
| 373 | 332 SchedTaskBase *nextSched; |
| 333 | |
| 334 nextSched = __scheduler->get_nextRenewTaskList(); | |
| 308 | 335 |
| 373 | 336 // RenewTask がある |
| 337 if (nextSched) { | |
| 338 __scheduler->set_backupTaskList(__list); | |
| 339 __scheduler->set_backupTaskListIndex(__cur_index); | |
| 340 return nextSched; | |
| 341 } else { | |
| 342 TaskPtr nextTask = &__list->tasks[__cur_index++]; | |
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343 if (__cur_index < __list->length) { |
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344 // load next task |
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345 loadSchedTask(__scheduler, &__list->tasks[__cur_index]); |
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346 } |
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347 nextSched = createSchedTask(__scheduler, nextTask); |
| 373 | 348 ((SchedTask*)nextSched)->__init__(__list, nextTask, __cur_index, |
| 349 __scheduler->get_curReadBuf(), | |
| 350 __scheduler->get_curWriteBuf(), | |
| 351 __scheduler); | |
| 352 return nextSched; | |
| 353 } | |
| 308 | 354 } else { |
| 373 | 355 uint32 nextList = (uint32)__list->next; |
| 356 | |
| 357 if (nextList == 0) { | |
| 358 return new SchedNop2Ready(__scheduler); | |
| 359 } else { | |
| 360 return createSchedTaskList(nextList, __scheduler, | |
| 361 SCHED_TASKLIST_NORMAL); | |
| 362 } | |
| 308 | 363 } |
| 364 } | |
| 365 | |
| 366 /** | |
| 367 * | |
| 368 */ | |
| 369 SchedTaskBase* | |
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370 SchedTask::ex_next_renew() |
| 308 | 371 { |
| 372 TaskPtr nextTask; | |
| 373 SchedTask *nextSched; | |
| 374 | |
| 375 if (__cur_index < __list->length) { | |
| 373 | 376 nextTask = &__list->tasks[__cur_index++]; |
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377 nextSched = createSchedTask(__scheduler, nextTask); |
| 308 | 378 |
| 373 | 379 // RenewTaskList を実行中なので |
| 380 nextSched->__setRenew(); | |
| 381 nextSched->__init__(__list, nextTask, __cur_index, | |
| 382 __scheduler->get_curReadBuf(), | |
| 383 __scheduler->get_curWriteBuf(), | |
| 384 __scheduler); | |
| 308 | 385 |
| 373 | 386 /** |
| 387 * この理由は SchedTask:~SchedTask() で | |
| 388 */ | |
| 389 __list = NULL; | |
| 390 return nextSched; | |
| 308 | 391 } else { |
| 373 | 392 SchedTaskBase *nextList; |
| 393 | |
| 394 nextList = __scheduler->get_nextRenewTaskList(); | |
| 395 | |
| 396 if (nextList) { | |
| 397 return nextList; | |
| 398 } else { | |
| 399 TaskListPtr nextList = __scheduler->get_backupTaskList(); | |
| 400 | |
| 401 // 中断した TaskList がある | |
| 402 if (nextList) { | |
| 403 __cur_index = __scheduler->get_backupTaskListIndex(); | |
| 308 | 404 |
| 373 | 405 nextTask = &nextList->tasks[__cur_index++]; |
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406 nextSched = createSchedTask(__scheduler, nextTask); |
| 373 | 407 |
| 408 nextSched->__init__(nextList, nextTask, __cur_index, | |
| 409 __scheduler->get_curReadBuf(), | |
| 410 __scheduler->get_curWriteBuf(), | |
| 411 __scheduler); | |
| 412 return nextSched; | |
| 413 } else { | |
| 414 return new SchedNop2Ready(__scheduler); | |
| 415 } | |
| 416 } | |
| 308 | 417 } |
| 418 } | |
| 419 | |
| 420 int | |
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421 SchedTask::get_cpuid() |
| 308 | 422 { |
| 423 return __scheduler->id; | |
| 424 } | |
| 425 | |
| 426 /** | |
| 427 * task->add_inData で与えられた順番に対応する index (0〜n-1) で、 | |
| 428 * buffer から対応するデータを返す。 | |
| 429 */ | |
| 430 void* | |
| 431 SchedTask::get_input(void *buff, int index) | |
| 432 { | |
| 433 if (buff != NULL) { | |
| 373 | 434 return (void*)((int)buff + __inListData->bound[index]); |
| 308 | 435 } else { |
| 373 | 436 return NULL; |
| 308 | 437 } |
| 438 } | |
| 439 | |
| 440 /** | |
| 441 * get_input(index) のアドレスを返す | |
| 442 */ | |
| 443 uint32 | |
| 444 SchedTask::get_inputAddr(int index) | |
| 445 { | |
| 446 return __inListData->element[index].addr; | |
| 447 } | |
| 448 | |
| 449 /** | |
| 450 * get_input(index) のサイズを返す | |
| 451 */ | |
| 452 int | |
| 453 SchedTask::get_inputSize(int index) | |
| 454 { | |
| 455 return __inListData->element[index].size; | |
| 456 } | |
| 457 | |
| 458 /** | |
| 459 * write buffer の領域を返す。 | |
| 460 */ | |
| 461 void* | |
| 462 SchedTask::get_output(void *buff, int index) | |
| 463 { | |
| 464 if (buff != NULL) { | |
| 373 | 465 return (void*)((int)buff + __outListData->bound[index]); |
| 308 | 466 } else { |
| 373 | 467 return NULL; |
| 308 | 468 } |
| 469 } | |
| 470 | |
| 471 /** | |
| 472 * get_output(index) のアドレスを返す | |
| 473 */ | |
| 474 uint32 | |
| 475 SchedTask::get_outputAddr(int index) | |
| 476 { | |
| 477 return __outListData->element[index].addr; | |
| 478 } | |
| 479 | |
| 480 /** | |
| 481 * get_output(index) のサイズを返す | |
| 482 */ | |
| 483 int | |
| 484 SchedTask::get_outputSize(int index) | |
| 485 { | |
| 486 return __outListData->element[index].size; | |
| 487 } | |
| 488 | |
| 489 int | |
| 490 SchedTask::get_param(int index) | |
| 491 { | |
| 492 return __task->param[index]; | |
| 493 } | |
| 494 | |
| 495 TaskPtr | |
| 496 SchedTask::create_task(int cmd) | |
| 497 { | |
| 498 TaskListPtr taskList = __scheduler->get_renewListBuf(); | |
| 499 TaskPtr p = &taskList->tasks[taskList->length++]; | |
| 500 p->command = cmd; | |
| 501 | |
| 502 p->inData = (ListData*)__scheduler->allocate(sizeof(ListData)); | |
| 503 p->outData = (ListData*)__scheduler->allocate(sizeof(ListData)); | |
| 504 | |
| 505 p->inData->clear(); | |
| 506 p->outData->clear(); | |
| 507 | |
| 508 p->self = MY_SPE_NOP; | |
| 509 p->param_size = 0; | |
| 510 | |
| 511 return p; | |
| 512 } | |
| 513 | |
| 514 /** | |
| 515 * 生成したタスクが終了してから、メインスケジューラ(PPE) に | |
| 516 * タスクが終了した旨を知らせる。 | |
| 517 * | |
| 518 * @param[in] waitTask タスク内で生成したタスク | |
| 519 */ | |
| 520 void | |
| 521 SchedTask::wait_task(TaskPtr waitTask) | |
| 522 { | |
| 523 waitTask->self = (uint32)__taskGroup; | |
| 524 | |
| 525 __scheduler->add_groupTask(__taskGroup, waitTask); | |
| 526 | |
| 527 __renew_flag++; | |
| 528 } | |
| 529 | |
| 530 void* | |
| 531 SchedTask::global_alloc(int id, int size) { | |
| 532 return __scheduler->global_alloc(id, size); | |
| 533 } | |
| 534 | |
| 535 void* | |
| 536 SchedTask::global_get(int id) { | |
| 537 return __scheduler->global_get(id); | |
| 538 } | |
| 539 | |
| 540 void | |
| 373 | 541 SchedTask::global_set(int id, void *addr) { |
| 542 __scheduler->global_set(id, addr); | |
| 543 } | |
| 544 | |
| 545 void | |
| 308 | 546 SchedTask::global_free(int id) { |
| 547 __scheduler->global_free(id); | |
| 548 } | |
| 549 | |
| 373 | 550 MemList* |
| 551 SchedTask::createMemList(int size, int count) { | |
| 552 return __scheduler->createMemList(size, count); | |
| 553 } | |
| 554 | |
| 308 | 555 void |
| 556 SchedTask::mainMem_alloc(int id, int size) { | |
| 557 __scheduler->mainMem_alloc(id, size); | |
| 558 } | |
| 559 | |
| 560 void | |
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561 SchedTask::mainMem_wait() { |
| 308 | 562 __scheduler->mainMem_wait(); |
| 563 } | |
| 564 | |
| 565 void* | |
| 566 SchedTask::mainMem_get(int id) { | |
| 567 return __scheduler->mainMem_get(id); | |
| 568 } | |
| 569 | |
| 570 void* | |
| 571 SchedTask::allocate(int size) { | |
| 572 return __scheduler->allocate(size); | |
| 573 } | |
| 574 | |
| 575 void | |
| 576 SchedTask::dma_load(void *buf, uint32 addr, uint32 size, uint32 mask) { | |
| 577 __scheduler->dma_load(buf, addr, size, mask); | |
| 578 } | |
| 579 | |
| 580 void | |
| 581 SchedTask::dma_store(void *buf,uint32 addr, uint32 size, uint32 mask) { | |
| 582 __scheduler->dma_store(buf, addr, size, mask); | |
| 583 } | |
| 584 | |
| 585 void | |
| 586 SchedTask::dma_wait(uint32 mask) { | |
| 587 __scheduler->dma_wait(mask); | |
| 588 } | |
| 589 | |
|
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590 void |
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591 SchedTask::show_dma_wait() { |
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592 __scheduler->show_dma_wait(); |
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593 } |
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594 |
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595 MemorySegment * SchedTask::get_segment(memaddr addr, MemList *m) { |
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596 return __scheduler->get_segment(addr,m); |
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597 } |
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598 |
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599 void SchedTask::put_segment(MemorySegment *s) { |
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600 __scheduler->put_segment(s); |
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601 } |
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602 |
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603 void SchedTask::wait_segment(MemorySegment *s) { |
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604 __scheduler->wait_segment(s); |
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605 } |
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606 |
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607 |
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608 |
| 308 | 609 /* end */ |