日常瑣碎事

不確定

重要

PPU SIDE:

• ppu_trace.c
• ppu_io.c
• ppu_trace_collector.c

1. ppu_trace.c:

使用變數：

• SPURecords [MAX_SPU] [BUFFER_NUM] [PPU_BUFFER_ENTRY] (spu_trace_t),
• SPUStatus [MAX_SPU] [BUFFER_NUM] (status_t),
• EA[MAX_SPU] [BUFFER_NUM] [2] (存前兩者address),
• PPURecords [PPU_BUFFER_ENTRY * BUFFER_NUM] (ppu_trace_t),
• SPEInfo (spe_info_t),
• SPECtx [MAX_SPU] (spe_context_ptr_t), Cell上特殊結構
  
• SPU_Count,
• TreadCount
• BufPos
• SPU_Tid (pthread_t), Pthread

extern void* WriteSPUFile (實做於ppu_io.c)

實作函式：

• PPU_TraceInit  -->  初始化變數及設定, 呼叫OpenPPUFile及FunctionStart

• PPUTraceTerminate  -->  結束Trace, 呼叫FunctionEnd及ClosePPUFile
• SentBufferAddress  -->  有關SPU的資訊 --> call SPUCreate
  
• PThreadCreateStart
• PThreadCreateEnd  -->  呼叫外部函式  --> WriteSPUFile -->  寫出trace.details（四個給converter的檔案之一） (我們將寫在msg_exit)
  
• PThreadJoinStart
• PThreadJoinEnd

2. ppu_io.c

使用變數：

• Store [BUFFER_NUM] [STORAGE_ENTRY] (spu_trace_t)
• StoreID [BUFFER_NUM] [STORAGEW_ENTRY/PPU_BUFFER_ENTRY]
• FILE *ch,*ch1;
• FILE*PPUFile,*PPUFile1;
• ptread_t tid;

實做函式：

• OpenPPUFile  -->  PPUFile (trace.ppu.event), PPUFile1 (trace.details)
• WritePPUFile  -->  將PPURecords寫入PPUFile並將BufPos設為0
• WriteSPUDetails  -->  紀錄SPU num及Buffer entry並寫至PPUFile1
• ClosePPUFile
• *WriteFile  -->  將前述宣告的變數寫至ch及ch1
• *WriteSPUFile  --> 被外部程式呼叫
  

3. ppu_trace_collector.c

使用變數：

• PPUTime

實做函式；

• IncreasePos  -->  對BufPos++，並檢查buffer是否已滿
• CheckCommunicator
• RecordEvent
• RecordEventTime
• RecordEventStart
• RecordEventEnd
• FunctionStart
• FunctionEnd
• SPUCreate
• PPUTerminate
• DMA, MBOX, Sig function