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Method and apparatus for memory access scheduling in a video graphics system
Method and apparatus for memory access scheduling in a video graphics system
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机译:用于视频图形系统中的存储器访问调度的方法和设备
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摘要
A method and apparatus for sequencing memory accesses in a video graphics system such that page faults are effectively hidden is accomplished by receiving a memory access request from one of a plurality of clients, where the plurality of clients includes both linear clients and tiled memory clients. The clients access data stored in a memory that includes at least two banks. Once the memory request has been received, it is evaluated based on other pending requests in order to determine the optimal ordering pattern for execution of the memory requests. The optimal ordering pattern typically includes sequencing alternating accesses between the two banks of the memory such that when a page fault is occurring in one bank of the memory, a memory access is occurring in the opposing bank. Once the ordering of the memory requests has been performed, the requests are executed.
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