Mercurial > hg > Game > Cerium

annotate TaskManager/Fifo/FifoDmaManager.cc @ 1245:a97b4dd4574c draft

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Added tag real_matrix for changeset cd50c48f45e7
author Kakeru TAMASIRO <e095736@ie.u-ryukyu.ac.jp>
date Fri, 11 Nov 2011 17:04:13 +0900
parents a49c02dffe6f
children 2fa31362ead0
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <string.h>
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4 #include "FifoDmaManager.h"
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5 #include "Scheduler.h"
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6 #include "TaskManagerImpl.h"
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7
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8 void *
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9 FifoDmaManager::dma_load(Scheduler *s, void *buf, memaddr addr, uint32 size, uint32 mask)
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10 {
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11 if (size == 0) return buf;
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12 if (s) buf = s->manager->allocate(size);
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13 memcpy(buf, (void*)addr, size);
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14 return buf;
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15 }
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16
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17 void *
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18 FifoDmaManager::get_writebuf(Scheduler *s,memaddr addr, uint32 size)
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19 {
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20 void *b = s->manager->allocate(size);
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21 return b;
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22 }
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23
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24 void *
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25 FifoDmaManager::dma_store(void *buf, memaddr addr, uint32 size, uint32 mask)
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26 {
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27 if (size == 0) return buf;
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28 memcpy((void*)addr, buf, size);
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29 return buf;
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30 }
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32 /**
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33 * mask で設定した DMA 転送の完了を待つ
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34 */
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35 void
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36 FifoDmaManager::dma_wait(uint32 mask)
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37 {
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38 }
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41 void *
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42 FifoDmaManager::dma_loadList(Scheduler *s, ListDataPtr list, void *buff, uint32 mask)
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43 {
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44 int list_size = list->length;
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45 long bound;
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46
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47 buff = s->manager->allocate(list->size);
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48 bound = (long)(buff);
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50 for (int i = 0; i < list_size; i++) {
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51 ListElementPtr elm = &list->element[i];
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52 memcpy((void*)bound, (void*)elm->addr, elm->size);
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53 bound += elm->size;
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54 }
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55 return buff;
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56 }
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59 void *
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60 FifoDmaManager::get_writebuf(Scheduler *s,ListDataPtr addr, uint32 size)
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61 {
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62 void *b = s->manager->allocate(addr->size);
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63 return b;
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64 }
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65
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66 void
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67 FifoDmaManager::dma_storeList(ListDataPtr list, void *buff, uint32 mask)
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68 {
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69 int list_size = list->length;
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70 memaddr bound;
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72 bound = (memaddr)(buff);
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74 for (int i = 0; i < list_size; i++) {
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75 ListElementPtr elm = &list->element[i];
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76 memcpy((void*)elm->addr, (void*)bound, elm->size);
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77 bound += elm->size;
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78 }
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79 }
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80
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81 uint32
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82 FifoDmaManager::get_tag()
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83 {
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84 static int tag = 16;
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85 tag ++;
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86 tag &= 0x0f;
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87 return tag+16;
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88 }
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89
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90 /**
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91 * DMA buffer offset in rbuf
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92 */
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93 void
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94 FifoDmaManager::bound(ListData *list)
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95 {
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96 ListElement *elm = list->element;
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97 int *bound = list->bound;
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98 int offset=0;
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99 for(int i=0;i<list->length;i++) {
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100 bound[i] = offset;
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101 offset += elm[i].size;
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102 }
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103 }
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104
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105 /* end */