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annotate TaskManager/Cell/spe/CellDmaManager.cc @ 871:ab3cd3aeacff

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fix get segment dma tag zero problem
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 04 Jul 2010 16:56:04 +0900
parents 31d0a5baafdf
children ad6903dd6419
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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 #include "Scheduler.h"
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5
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6
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7 /**
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8 * DMA Load
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9 *
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10 * @param[in] buf Buffer of Load Data
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11 * @param[in] addr Address of Load Data at Main Memory
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12 * @param[in] size Size of Load Data
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13 * @param[in] mask DMA tag
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14 */
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15 void CellDmaManager::dma_load(void *buf, memaddr addr, uint32 size, uint32 mask)
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16 {
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17 if (size == 0) return ;
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18 mfc_get((volatile void *)buf, addr, size, mask, 0, 0);
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19 }
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20
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21 /**
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22 * DMA Store
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23 *
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24 * @param[in] buf Buffer of Store Data at SPE
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25 * @param[in] addr Address of Store Data at Main Memory
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26 * @param[in] size Size of Store Data
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27 * @param[in] mask DMA tag
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28 */
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29 void CellDmaManager::dma_store(void *buf, memaddr 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 void CellDmaManager::dma_wait(uint32 mask)
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36 {
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37 (this->*start_dmawait_profile)();
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38 mfc_write_tag_mask(1 << mask);
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39 mfc_write_tag_update_all();
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40 mfc_read_tag_status();
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41 __asm__ __volatile__(" sync");
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42 (this->*end_dmawait_profile)(&global_wait_time);
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43 }
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44
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45 void CellDmaManager::mail_write(memaddr data)
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46 {
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47 (this->*start_dmawait_profile)();
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48 spu_write_out_mbox((uint32)data);
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49 #if 0
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50 if (ABIBIT>32) {
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51 unsigned long data0 = (unsigned long)data;
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52 spu_write_out_mbox((uint32)(data0>>32));
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53 }
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54 #endif
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55 (this->*end_dmawait_profile)(&global_mail_time);
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56 }
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57
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58 memaddr CellDmaManager::mail_read()
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59 {
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60 (this->*start_dmawait_profile)();
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61 memaddr data = (memaddr)spu_read_in_mbox();
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62 #if 0
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63 if (ABIBIT>32) {
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64 data += (spu_read_in_mbox()<<32);
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65 }
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66 #endif
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67 (this->*end_dmawait_profile)(&global_mail_time);
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68 return data;
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69 }
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70
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71 void CellDmaManager::dma_loadList(ListDataPtr list, void *buff, uint32 mask)
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72 {
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73 mfc_getl(buff, 0, list->element, sizeof(mfc_list_element_t)*list->length,
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74 mask, 0, 0);
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75 }
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76
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77 void CellDmaManager::dma_storeList(ListDataPtr list, void *buff, uint32 mask)
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78 {
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79 mfc_putl(buff, 0, list->element, sizeof(mfc_list_element_t)*list->length,
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80 mask, 0, 0);
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81 }
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82
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83
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84 CellDmaManager::CellDmaManager()
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85 {
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86 stop_profile();
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87 }
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88
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89 void
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90 CellDmaManager::start_profile()
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91 {
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92 start_dmawait_profile = &CellDmaManager::do_start_dmawait_profile;
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93 end_dmawait_profile = &CellDmaManager::do_end_dmawait_profile;
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94 }
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95
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96 void
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97 CellDmaManager::stop_profile()
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98 {
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99 start_dmawait_profile = &CellDmaManager::null_start_dmawait_profile;
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100 end_dmawait_profile = &CellDmaManager::null_end_dmawait_profile;
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101 }
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102
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103 /**
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104 * DMA Wait
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105 *
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106 * @param[in] mask Tag for Wait DMA process
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107 */
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108 void
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109 CellDmaManager::do_start_dmawait_profile()
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110 {
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111 wait_time = spu_readch(SPU_RdDec);
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112 global_busy_time += busy_time - wait_time;
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113 spu_writech(SPU_WrDec, 0xffffffff);
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114 }
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115
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116 void
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117 CellDmaManager::do_end_dmawait_profile(unsigned long long *counter)
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118 {
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119 wait_time = spu_readch(SPU_RdDec);
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120 *counter += 0xffffffff - wait_time;
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121 busy_time = wait_time;
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122 }
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123
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124 void CellDmaManager::null_start_dmawait_profile() {}
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125 void CellDmaManager::null_end_dmawait_profile(unsigned long long *counter) {}
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126
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127 void
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128 CellDmaManager::show_dma_wait(Scheduler *s, int cpu)
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129 {
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130
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131 double r = ((double)global_busy_time)/((double)(
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132 global_busy_time+global_wait_time+global_mail_time
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133 ))*100.0;
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134 s->printf("spu%d: busy_time = %lld"
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135 " wait_time = %lld"
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136 " mail_time = %lld"
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137 " busy_ratio = %g%%\n", cpu, global_busy_time,
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138 global_wait_time, global_mail_time, r);
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139 }
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tkaito@localhost.localdomain
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diff changeset
140
604
7a41d2cb0a84 fix mail box size
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 364
diff changeset
141
7a41d2cb0a84 fix mail box size
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents: 364
diff changeset
142 /* end */