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发明授权
CN108345792B 处理器输入输出操作的处理方法、处理装置及系统 有权 转让

处理器输入输出操作的处理方法、处理装置及系统
摘要：
本发明提供了一种处理器输入输出操作的处理方法、处理装置及系统，该处理方法应用于输入输出记录装置。所述输入输出记录装置设置于处理器CPU与外设之间，用于记录所述CPU与所述外设之间的数据读写操作。所述处理方法包括：确定是否有所述CPU发起的读操作响应数据包到达所述输入输出记录装置；当有所述CPU发起的读操作响应数据包到达时，将所述CPU发起的读操作响应数据包及其之前到达所述输入输出记录装置的所述外设发起的数据读写操作的数据包发送至所述CPU。本发明通过控制输入输出记录装置对缓存在其中的数据包的发送时机，能够保证处理器CPU发起的读操作事件与该外设发起的数据读写操作事件不错序，并且可以避免出现死锁问题。
摘要（英）：

The invention provides a processing method, apparatus and system for input output operation of a central processing unit. The processing method is applied to an input output recording apparatus. The input output recording apparatus is arranged between the CPU and a peripheral, and is used for recording data read-write operation between the CPU and the peripheral. The processing method comprises the steps of determining whether a response data package of read operation initiated by the CPU reaches the input output recording apparatus or not; and when the response data package of the read operation initiated by the CPU reaches the input output recording apparatus, sending the response data package of the read operation initiated by the CPU and a data package of data read-write operation initiated by the peripheral, previously reaching the input output recording apparatus to the CPU. By controlling a sending opportunity of the data package cached in the input output recording apparatus, the disorder of a read operation event initiated by the CPU and a data read-write operation event initiated by the peripheral can be prevented, and the problem of dead lock can be avoided.

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