当DMA传输完成时，由PPE程序作为参数传递的 spe_arg_t结构就会被拷贝到SPE 程序中进行参数验证。
When the DMA transfer is complete, the spe_arg_t structure passed as an argument by the PPE program has been copied into the SPE program for argument validation.
当DMA传输完成时，由PPE程序作为参数传递的 spe_arg_t结构就会被拷贝到SPE 程序中进行参数验证。
When the DMA transfer is complete, the spe_arg_t structure passed as an argument by the PPE program has been copied into the SPE program for argument validation.
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