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annotate TaskManager/Cell/spe/CellScheduler.cc @ 496:58240647b23b

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PS3 double linked TaskQueue worked.
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sat, 10 Oct 2009 20:32:55 +0900
parents 7cd207691af1
children ab866bc8a624
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1 #include <stdio.h>
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2 #include <malloc.h>
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3 #include "CellScheduler.h"
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4 #include "CellDmaManager.h"
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5 #include "error.h"
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6
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7 // ユーザプログラムで定義
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8 // なんだけど、それは微妙じゃね？
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9 extern void task_init(Scheduler *scheduler);
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10
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11 void
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12 CellScheduler::init_impl()
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13 {
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14 connector = new CellDmaManager;
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16 mainMemNum = 0;
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17
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18 task_init(this); // PPE側ではUser 側で既に呼んでいる...
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19 // SPE側はここで呼び出す必要がある
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20 // Fifo ではSPEは無いので呼び出されない
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21 }
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23 void*
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24 CellScheduler::allocate(int size)
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25 {
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26 return memalign(DEFAULT_ALIGNMENT, size);
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27 }
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29 /**
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30 * メインメモリ領域を allocate する。
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31 * allocate した領域のアドレスは mainMem_get で取得するが、
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32 * mainMem_get を実行できるのは
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33 * Renew Task (タスク内で create した Task) から。
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34 * alloc してすぐ get しても、アドレス何も入ってないです。
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35 */
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36 void
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37 CellScheduler::mainMem_alloc(int id, int size)
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38 {
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39 mainMemList[id] = NULL;
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40
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41 mainMemNum++;
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42 mail_write(MY_SPE_COMMAND_MALLOC);
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43 mail_write(id);
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44 mail_write(size);
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45 }
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47 void
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48 CellScheduler::mainMem_wait()
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49 {
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50 uint32 id;
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51 uint32 addr;
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52
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53 while (mainMemNum > 0) {
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54 id = mail_read();
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55 addr = mail_read();
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56
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57 mainMemList[id] = (void*)addr;
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58 mainMemNum--;
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59 }
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60 }
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62 /*
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63 dma channel を返す
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64 本来、SPU用に閉じているはず。ユーザが明示的に使うことはない。
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65 良くわからないが、ある分だけcounterで廻せば良い。しかし、
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66 そのためには、全部で、get_tag()する必要があるはず。
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68 */
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70 #define TEX_LOAD1 0
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71 // #define TEX_LOAD2 1
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73 uint32
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74 CellScheduler::get_tag()
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75 {
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76 static int count = 0;
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77 // int i = (count++ % 2);
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78 // return TEX_LOAD1*i + TEX_LOAD2*(1-i);
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79 // 0,1,2,3
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80 return TEX_LOAD1+(count++ % 2);
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81 }
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85 /* end */