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61
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1 #include <stdio.h>
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88
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2 #include <stdlib.h>
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3 #include <malloc.h>
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59
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4 #include "CellDmaManager.h"
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5
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6 void
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88
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7 CellDmaManager::dma_load(void *buf, uint32 addr, uint32 size, uint32 mask)
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59
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8 {
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88
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9 //if (buf == NULL || (void*)addr == NULL) return;
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10 if (size == 0) return ;
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59
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11 spu_mfcdma32(buf, addr, ROUND_UP_ALIGN(size, DEFAULT_ALIGNMENT),
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12 mask, MFC_GET_CMD);
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13 }
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14
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15 void
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16 CellDmaManager::dma_store(void *buf, uint32 addr, uint32 size, uint32 mask)
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59
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17 {
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88
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18 //if (buf == NULL || (void*)addr == NULL) return;
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19 if (size == 0) return ;
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59
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20 spu_mfcdma32(buf, addr, ROUND_UP_ALIGN(size, DEFAULT_ALIGNMENT),
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21 mask, MFC_PUT_CMD);
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22 }
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23
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24 /**
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25 * mask で設定した DMA 転送の完了を待つ
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26 */
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27 void
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28 CellDmaManager::dma_wait(uint32 mask)
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59
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29 {
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30 spu_writech(MFC_WrTagMask, 1 << mask);
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31 spu_mfcstat(MFC_TAG_UPDATE_ALL);
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32 }
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33
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34 void
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88
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35 CellDmaManager::mail_write(uint32 data)
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59
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36 {
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37 spu_writech(SPU_WrOutMbox, data);
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38 }
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39
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40 unsigned int
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41 CellDmaManager::mail_read(void)
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42 {
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43 return spu_readch(SPU_RdInMbox);
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44 }
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88
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45
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46 void
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47 CellDmaManager::dmaList_set(uint32 _address, uint32 _size)
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48 {
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49 int *index = &buff_index[buff_flag];
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50 DmaListPtr queue = &dmaQueue[buff_flag][(*index)++];
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51
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52 queue->addr = _address;
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53 queue->size = ROUND_UP_ALIGN(_size, DEFAULT_ALIGNMENT);
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54 }
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55
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56 void**
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57 CellDmaManager::dmaList_load(uint32 mask)
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58 {
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59 int index = buff_index[buff_flag];
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60 DmaListPtr queue = dmaQueue[buff_flag];
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61 mfc_list_element_t *mfc_list = mfcList[buff_flag];
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62
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63 void **buffList;
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64 void *buff;
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65 int bound;
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66 int total_size = 0;
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67
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68 mfc_list = (mfc_list_element_t *)malloc(sizeof(mfc_list_element_t)*index);
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69
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70 for (int i = 0; i < index; i++) {
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71 mfc_list[i].notify = 0;
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72 mfc_list[i].reserved = 0;
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73 mfc_list[i].size = queue[i].size;
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74 mfc_list[i].eal = queue[i].addr;
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75 total_size += queue[i].size;
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76 }
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77
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78 //----------------------------------------------------------------
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79 // list element が n 個ある場合の buff, buffList の構造
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80 //
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81 // +---------------+---------------+--------+-----------------+
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82 // buff | queue[0].size | queue[1].size | ...... | queue[n-1].size |
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83 // +---------------+---------------+--------+-----------------+
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84 // ^ ^ ^ ^
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85 // | | | |
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86 // buffList[0] buffList[1] buffList[2] buffList[n-1]
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87 //----------------------------------------------------------------
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88
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89 buff = memalign(DEFAULT_ALIGNMENT, total_size);
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90 buffList = (void**)malloc(index);
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91
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92 bound = (int)buff;
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93 buffList[0] = (void*)bound;
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94 for (int i = 1; i < index; i++) {
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95 bound += queue[i-1].size;
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96 buffList[i] = (void*)bound;
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97 }
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98
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99 mfc_getl(buff, 0, mfc_list, sizeof(mfc_list_element_t), mask, 0, 0);
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100 dma_wait(mask);
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101
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102 _buffList[buff_flag] = buffList;
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103 _buff[buff_flag] = buff;
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104
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105 return buffList;
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106 }
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