发明授权
US07552287B2 Method and system of controlling a cache memory by interrupting prefetch request with a demand fetch request
有权
通过用需求提取请求中断预取请求来控制高速缓冲存储器的方法和系统
- 专利标题： Method and system of controlling a cache memory by interrupting prefetch request with a demand fetch request
- 专利标题（中）： 通过用需求提取请求中断预取请求来控制高速缓冲存储器的方法和系统
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申请号： US10986860申请日： 2004-11-15
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公开(公告)号： US07552287B2公开(公告)日： 2009-06-23
- 发明人: Shuichi Yoshizawa , Hiroyuki Kojima , Masaki Ukai
- 申请人： Shuichi Yoshizawa , Hiroyuki Kojima , Masaki Ukai
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Staas & Halsey LLP
- 优先权： JP2004-221156 20040729
- 主分类号： G06F12/00
- IPC分类号： G06F12/00
摘要：
A cache memory control unit that controls a cache memory comprises: a PF-PORT 22 and MI-PORT 21 that receive a prefetch request and demand fetch request issued from a primary cache; and a processing pipeline 27 that performs swap processing when the MI-PORT 21 receives a demand fetch request designating the same memory address as that designated by a prefetch request that has already been received by the PF-PORT 22, the swap processing being performed so that an MIB 28 that has been ensured for replying the prefetch request is used for a reply to the demand fetch request following the prefetch request.
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