发明名称 Prefetch instruction that ignores a cache hit
摘要 Techniques are disclosed relating to prefetching data from memory. In one embodiment, an integrated circuit may include a processor containing an execution core and a data cache. The execution core may be configured to receive an instance of a prefetch instruction that specifies a memory address from which to retrieve data. In response to the instance of the instruction, the execution core retrieves data from the memory address and stores it in the data in the data cache, regardless of whether the data corresponding to that particular memory address is already stored in the data cache. In this manner, the data cache may be used as a prefetch buffer for data in memory buffers where coherence has not been maintained.
申请公布号 US8683135(B2) 申请公布日期 2014.03.25
申请号 US20100916624 申请日期 2010.10.31
申请人 FRANK MICHAEL;APPLE INC. 发明人 FRANK MICHAEL
分类号 G06F12/00 主分类号 G06F12/00
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