Mercurial > hg > Game > Cerium
annotate TaskManager/kernel/ppe/CpuThreads.cc @ 1499:622a7d053537 draft
cpu id etc
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Wed, 22 Aug 2012 17:42:33 +0900 |
| parents | 73f4bfaeaf99 |
| children | 8d6fee66ff65 |
| rev | line source |
|---|---|
| 817 | 1 #include <stdlib.h> |
| 2 #include "types.h" | |
| 3 #include "CpuThreads.h" | |
| 1482 | 4 #ifdef __CERIUM_GPU__ |
| 5 #include "GpuThreads.h" | |
| 6 #endif | |
| 7 #include "GpuThreads.h" | |
| 817 | 8 #include "MainScheduler.h" |
| 9 #include "SysFunc.h" | |
| 10 #include "SchedNop.h" | |
| 1179 | 11 #include "SpeTaskManagerImpl.h" |
| 1310 | 12 #include "CellScheduler.h" |
| 817 | 13 |
| 1482 | 14 |
| 1310 | 15 SchedExternTask(ShowTime); |
| 16 SchedExternTask(StartProfile); | |
| 817 | 17 |
| 18 | |
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19 CpuThreads::CpuThreads(int num, int useRefDma, int start_id) : cpu_num(num), use_refdma(useRefDma), id_offset(start_id) { |
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20 |
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21 #ifdef __CERIUM_GPU__ |
| 1482 | 22 gpu = new GpuThreads(useRefDma); |
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23 #endif |
| 1181 | 24 threads = new pthread_t[cpu_num]; |
| 25 args = new cpu_thread_arg_t[cpu_num]; | |
| 1499 | 26 wait = new Sem(0); |
| 1181 | 27 |
| 28 } | |
| 817 | 29 |
| 30 CpuThreads::~CpuThreads() | |
| 31 { | |
| 32 memaddr mail = (memaddr)MY_SPE_COMMAND_EXIT; | |
| 33 | |
| 34 for (int i = 0; i < cpu_num; i++) { | |
| 35 send_mail(i, 1, &mail); | |
| 36 } | |
| 37 | |
| 38 for (int i = 0; i < cpu_num; i++) { | |
| 1499 | 39 pthread_join(threads[i], NULL); |
| 40 } | |
| 1179 | 41 |
| 42 for (int i = 0; i < cpu_num; i++) { | |
| 43 delete args[i].scheduler; | |
| 817 | 44 } |
| 45 | |
| 46 delete [] threads; | |
| 47 delete [] args; | |
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48 #ifdef __CERIUM_GPU__ |
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49 delete gpu; |
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50 #endif |
| 817 | 51 } |
| 52 | |
| 53 void * | |
| 54 CpuThreads::cpu_thread_run(void *args) | |
| 55 { | |
| 56 cpu_thread_arg_t *argt = (cpu_thread_arg_t *) args; | |
| 57 Scheduler *c_scheduler = argt->scheduler; | |
| 58 | |
| 1179 | 59 TaskManagerImpl *manager = new SpeTaskManagerImpl(); |
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60 c_scheduler->init(manager,argt->useRefDma); |
| 1179 | 61 c_scheduler->id = (int)argt->cpuid; |
| 817 | 62 |
| 1179 | 63 manager->set_scheduler(c_scheduler); |
| 64 | |
| 1310 | 65 SchedRegister(ShowTime); |
| 66 SchedRegister(StartProfile); | |
| 817 | 67 |
| 1182 | 68 argt->wait->sem_v(); //準備完了したスレッドができるたびに+1していく |
| 1181 | 69 |
| 817 | 70 c_scheduler->run(new SchedNop()); |
| 71 c_scheduler->finish(); | |
| 72 | |
| 73 return NULL; | |
| 74 } | |
| 75 | |
| 76 void | |
| 1179 | 77 //CpuThreads::init() |
| 817 | 78 CpuThreads::init() |
| 79 { | |
| 1482 | 80 #ifdef __CERIUM_GPU__ |
| 81 gpu->set_wait(wait); | |
| 82 gpu->init(); | |
| 83 wait->sem_p(); | |
| 84 #endif | |
| 85 | |
| 1499 | 86 for (int i = 0; i < cpu_num; i++) { |
| 87 args[i].cpuid = i + id_offset; | |
| 88 args[i].scheduler = new MainScheduler(); | |
| 89 args[i].wait = wait; | |
| 90 args[i].useRefDma = use_refdma; | |
| 91 } | |
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92 |
| 817 | 93 for (int i = 0; i < cpu_num; i++) { |
| 1181 | 94 pthread_create(&threads[i], NULL, |
| 95 &cpu_thread_run, (void*)&args[i]); | |
| 817 | 96 } |
| 97 | |
| 98 for (int i = 0; i < cpu_num; i++) { | |
| 1182 | 99 wait->sem_p(); |
| 817 | 100 } |
| 101 } | |
| 102 | |
| 103 /** | |
| 104 * このCPU からのメールを受信する。 | |
| 105 * | |
| 106 * @param [cpuid] SPE ID | |
| 107 * | |
| 108 * @return Received 32-bit mailbox messages | |
| 109 * if ([ret] < 0) no data read | |
| 110 */ | |
| 111 int | |
| 112 CpuThreads::get_mail(int cpuid, int count, memaddr *ret) | |
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113 { |
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114 #ifdef __CERIUM_GPU__ |
| 1499 | 115 if (is_gpu(cpuid)) return gpu->get_mail(cpuid, count, ret); |
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116 #endif |
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117 *ret = args[cpuid-id_offset].scheduler->mail_read_from_host(); |
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118 return 1; |
| 817 | 119 } |
| 120 | |
| 121 int | |
| 122 CpuThreads::has_mail(int cpuid, int count, memaddr *ret) | |
| 123 { | |
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124 #ifdef __CERIUM_GPU__ |
| 1499 | 125 if (is_gpu(cpuid)) return gpu->has_mail(cpuid, count, ret); |
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126 #endif |
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127 if (args[cpuid-id_offset].scheduler->has_mail_from_host() != 0) { |
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128 return get_mail(cpuid,count,ret); |
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129 } else { |
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130 return 0; //mailがないとき0を返す |
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131 } |
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132 |
| 817 | 133 } |
| 134 /** | |
| 135 * Inbound Mailbox | |
| 136 * メール送信 Front End -> CPU | |
| 137 * | |
| 138 * なるべく NONBLOCKING なんだけど、 | |
| 139 * Inbound Mailbox キューに空きがないと送信できないので | |
| 140 * 送信する数だけ空いているか確認してから送る。空いて無い場合は待つ。 | |
| 141 * | |
| 142 * 結局待つんだよな。しかも ALL_BLOCKING って実は busy wait だったりするし | |
| 143 * | |
| 144 * @param [cpuid] SPE ID | |
| 145 * @param [data] Send 32-bit mailbox messages | |
| 146 * @param [num] The number of messages | |
| 147 */ | |
| 148 void | |
| 149 CpuThreads::send_mail(int cpuid, int num, memaddr *data) | |
| 150 { | |
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151 #ifdef __CERIUM_GPU__ |
| 1499 | 152 if (is_gpu(cpuid)){ |
| 1481 | 153 gpu->send_mail(cpuid, num, data); |
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154 return; |
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155 } |
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156 #endif |
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157 args[cpuid-id_offset].scheduler->mail_write_from_host(*data); |
| 817 | 158 } |
| 159 | |
| 1179 | 160 void |
| 161 CpuThreads::add_output_tasklist(int command, memaddr buff, int alloc_size) | |
| 162 { | |
| 163 /* | |
| 164 * output TaskList が無ければ新しく作る | |
| 165 * あれば TaskList に allocate した Task を追加 | |
| 166 * command に対応した Task の初期化を実行する | |
| 167 * SPE に data が書き出し終わった後に PPE 側で初期化 | |
| 168 */ | |
| 169 | |
| 170 } | |
| 817 | 171 |
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172 |
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173 int |
| 1499 | 174 CpuThreads::is_gpu(int cpuid) |
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175 { |
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176 if ( (cpuid < GPU_0)||(cpuid > GPU_3) ) { |
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177 return 0; |
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178 // cpuidがGPU以外なら0を返す |
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179 } else { |
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180 return 1; |
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181 //GPUなら1を返す |
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182 } |
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183 } |
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184 |
| 817 | 185 /* end */ |