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109
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1 #include <stdlib.h>
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76
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2 #include "types.h"
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65
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3 #include "SpeThreads.h"
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4
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5 SpeThreads::SpeThreads(int num) : spe_num(num) {}
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6
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76
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7 SpeThreads::~SpeThreads(void)
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8 {
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9 unsigned int mail = MY_SPE_COMMAND_EXIT;
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10 int ret;
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11
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12 for (int i = 0; i < spe_num; i++) {
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109
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13 send_mail(i, &mail, 1);
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76
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14 }
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15
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16 for (int i = 0; i < spe_num; i++) {
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17 pthread_join(threads[i], NULL);
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18 ret = spe_context_destroy(spe_ctx[i]);
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19 if (ret) {
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20 perror("[~SpeThreads] spe_context_destroy");
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21 }
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22 }
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23
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24 spe_image_close(spe_handle);
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25
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26 delete [] spe_ctx;
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27 delete [] threads;
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28 delete [] args;
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29 }
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30
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65
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31 void*
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32 SpeThreads::spe_thread_run(void *arg)
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33 {
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34 unsigned int entry = SPE_DEFAULT_ENTRY;
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109
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35 //spe_context_ptr_t ctx = (spe_context_ptr_t)arg;
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36 thread_arg_t *arg_t = (thread_arg_t *)arg;
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37
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38 spe_stop_info_t stop_info;
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39 unsigned long long status;
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40
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41 spe_context_run(arg_t->ctx, &entry, 0, (void*)arg_t->speid, NULL, &stop_info);
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42
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43 status = ((stop_info.result.spe_exit_code & 0xff) << 8)
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44 | (stop_info.result.spe_signal_code & 0xff);
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45
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46 printf("[SPE %d] ", arg_t->speid);
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47 switch(stop_info.stop_reason) {
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48 case SPE_EXIT:
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49 printf("SPE_EXIT stop_info.result.stop_exit_code=0x%x\n", stop_info.result.spe_exit_code);
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50 break;
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51 case SPE_STOP_AND_SIGNAL:
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52 printf("SPE_STOP_AND_SIGNAL stop_info.result.stop_signal_code=%d\n", stop_info.result.spe_signal_code);
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53 break;
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54 case SPE_RUNTIME_ERROR:
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55 printf("SPE_RUNTIME_ERROR stop_info.result.spe_runtime_error=%d\n", stop_info.result.spe_runtime_error);
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56 break;
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57 case SPE_RUNTIME_EXCEPTION:
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58 printf("SPE_RUNTIME_EXCEPTION stop_info.result.spe_runtime_exception=%d\n", stop_info.result.spe_runtime_exception);
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59 break;
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60 }
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65
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61
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62 pthread_exit(NULL);
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63 }
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64
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65 void*
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66 SpeThreads::frontend_thread_run(void *arg)
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67 {
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68 pthread_t thread;
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69 thread_arg_t *arg_t = (thread_arg_t *)arg;
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70
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71 pthread_create(&thread, NULL, &spe_thread_run, (void*)arg_t->ctx);
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72
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76
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73 // mail read の blocking ができれば
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74 // ここで呼んだ方が早い。
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75
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76 pthread_exit(NULL);
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77 }
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78
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79 void
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80 SpeThreads::init(void)
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81 {
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109
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82 spe_handle = spe_image_open(SPE_ELF);
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83
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109
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84 if (spe_handle == NULL) {
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85 perror("spe_image_open");
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86 exit(EXIT_FAILURE);
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87 }
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88
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89 spe_ctx = new spe_context_ptr_t[spe_num];
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90 threads = new pthread_t[spe_num];
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91 args = new thread_arg_t[spe_num];
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92
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109
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93 for (int i = 0; i < spe_num; i++) {
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94 args[i].speid = i;
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95 spe_ctx[i] = spe_context_create(0, NULL);
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96 spe_program_load(spe_ctx[i], spe_handle);
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97 args[i].ctx = spe_ctx[i];
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98 }
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99
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109
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100 for (int i = 0; i < spe_num; i++) {
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101 #if 0
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102 pthread_create(&threads[i], NULL,
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103 &frontend_thread_run, (void*)&args[i]);
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109
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104 #else
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105 pthread_create(&threads[i], NULL,
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106 //&spe_thread_run, (void*)spe_ctx[i]);
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107 &spe_thread_run, (void*)&args[i]);
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108 #endif
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109 }
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110 }
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111
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109
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112 /**
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113 * SPE からのメールを受信する。
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114 *
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115 * @param [speid] SPE ID
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116 *
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117 * @return Received 32-bit mailbox messages
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118 * if ([ret] < 0) no data read
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119 */
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65
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120 int
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121 SpeThreads::get_mail(int speid)
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122 {
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109
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123 unsigned int ret = (unsigned int)(-1);
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124
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125 spe_out_mbox_read(spe_ctx[speid], &ret, 1);
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126 return ret;
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127 }
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128
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109
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129 /**
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130 * Inbound Mailbox
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131 * メール送信 PPE -> SPE
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132 *
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133 * なるべく NONBLOCKING なんだけど、
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134 * Inbound Mailbox キューに空きがないと送信できないので
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135 * 送信する数だけ空いているか確認してから送る。相手無い場合は待つ。
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136 * 結局 BLOCKING よりたちの悪い busy_wait かよとか思ったり。
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137 *
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138 * @param [speid] SPE ID
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139 * @param [data] Send 32-bit mailbox messages
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140 * @param [num] The number of messages
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141 */
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66
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142 void
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109
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143 SpeThreads::send_mail(int speid, unsigned int *data, int num)
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66
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144 {
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109
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145 while (spe_in_mbox_status(spe_ctx[speid]) < num);
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146 spe_in_mbox_write(spe_ctx[speid], data, num, SPE_MBOX_ANY_NONBLOCKING);
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66
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147 }
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