- 专利标题: Hardware apparatuses and methods to control cache line coherency
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申请号: US14498946申请日: 2014-09-26
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公开(公告)号: US09934146B2公开(公告)日: 2018-04-03
- 发明人: Simon C. Steely, Jr. , Samantika S. Sury , William C. Hasenplaugh
- 申请人: INTEL CORPORATION
- 申请人地址: US CA Santa Clara
- 专利权人: INTEL CORPORATION
- 当前专利权人: INTEL CORPORATION
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Nicholson de Vos Webster & Elliott LLP
- 主分类号: G06F12/08
- IPC分类号: G06F12/08 ; G06F12/0817 ; G06F12/0811
摘要:
Methods and apparatuses to control cache line coherency are described. A processor may include a first core having a cache to store a cache line, a second core to send a request for the cache line from the first core, moving logic to cause a move of the cache line between the first core and a memory and to update a tag directory of the move, and cache line coherency logic to create a chain home in the tag directory from the request to cause the cache line to be sent from the tag directory to the second core. A method to control cache line coherency may include creating a chain home in a tag directory from a request for a cache line in a first processor core from a second processor core to cause the cache line to be sent from the tag directory to the second processor core.
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