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annotate TaskManager/Cell/spe/CellDmaManager.cc @ 242:8382f0f8c0b4

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dma_wait
author e065746@localhost.localdomain
date Sun, 31 May 2009 15:55:00 +0900
parents f8182c7058b5
children e19d2c9e85b0 6bb8725e60ae
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include "CellDmaManager.h"
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4
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5 /**
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6 * DMA Load
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7 *
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8 * @param[in] buf Buffer of Load Data
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9 * @param[in] addr Address of Load Data at Main Memory
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10 * @param[in] size Size of Load Data
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11 * @param[in] mask DMA tag
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12 */
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13 void
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14 CellDmaManager::dma_load(void *buf, uint32 addr, uint32 size, uint32 mask)
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15 {
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16 if (size == 0) return ;
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17 mfc_get((volatile void *)buf, addr, size, mask, 0, 0);
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18 }
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19
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20 /**
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21 * DMA Store
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22 *
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23 * @param[in] buf Buffer of Store Data at SPE
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24 * @param[in] addr Address of Store Data at Main Memory
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25 * @param[in] size Size of Store Data
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26 * @param[in] mask DMA tag
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27 */
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28 void
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29 CellDmaManager::dma_store(void *buf, uint32 addr, uint32 size, uint32 mask)
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30 {
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31 if (size == 0) return ;
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32 mfc_put((volatile void *)buf, addr, size, mask, 0, 0);
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33 }
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34
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35 /**
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36 * DMA Wait
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37 *
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38 * @param[in] mask Tag for Wait DMA process
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39 */
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40 void
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41 CellDmaManager::start_dmawait_profile()
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42 {
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43 wait_time = spu_readch(SPU_RdDec);
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44 global_busy_time += busy_time - wait_time;
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45 spu_writech(SPU_WrDec, 0xffffffff);
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46 }
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47
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48 void
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49 CellDmaManager::end_dmawait_profile()
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50 {
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51 wait_time = spu_readch(SPU_RdDec);
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52 global_wait_time += 0xffffffff - wait_time;
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53 busy_time = wait_time;
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54 }
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56 void
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57 CellDmaManager::dma_wait(uint32 mask)
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58 {
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59 #ifdef SPU_PROFILE
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60 start_dmawait_profile();
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61 #endif
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62 mfc_write_tag_mask(1 << mask);
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63 mfc_write_tag_update_all();
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64 mfc_read_tag_status();
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65 #ifdef SPU_PROFILE
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66 end_dmawait_profile();
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67 #endif
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68 }
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70 void
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71 CellDmaManager::mail_write(uint32 data)
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72 {
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73 spu_write_out_mbox(data);
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74 }
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75
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76 unsigned int
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77 CellDmaManager::mail_read(void)
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78 {
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79 unsigned int mail = spu_read_in_mbox();
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80 return mail;
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81 }
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83 void
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84 CellDmaManager::dma_loadList(ListDataPtr list, void *buff, uint32 mask)
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85 {
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86 mfc_getl(buff, 0, list->element, sizeof(mfc_list_element_t)*list->length,
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87 mask, 0, 0);
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88 }
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90 void
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91 CellDmaManager::dma_storeList(ListDataPtr list, void *buff, uint32 mask)
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92 {
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93 mfc_putl(buff, 0, list->element, sizeof(mfc_list_element_t)*list->length,
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94 mask, 0, 0);
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95 }