发明授权
- 专利标题： Methods and apparatus to selectively power functional units
- 专利标题（中）： 选择性地为功能单元供电的方法和装置
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申请号： US13362358申请日： 2012-01-31
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公开(公告)号： US08732490B1公开(公告)日： 2014-05-20
- 发明人: Dennis M. O'Connor , Michael W. Morrow , Lawrence T. Clark
- 申请人： Dennis M. O'Connor , Michael W. Morrow , Lawrence T. Clark
- 申请人地址： BM Hamilton
- 专利权人： Marvell International Ltd.
- 当前专利权人： Marvell International Ltd.
- 当前专利权人地址： BM Hamilton
- 主分类号： G06F1/32
- IPC分类号： G06F1/32 ; G06F1/26
摘要：
A processing engine fetches one or more lines of software instructions into an instruction cache. Based on the contents of the cache, potentially needed functional units are identified as functional units that are operable to execute at least one software instruction stored within the instruction cache. Unneeded functional units are identified as functional units that are not operable to execute a software instruction stored within the instruction cache. A power increase is initiated for selected ones of the potentially needed functional units that are determined to be in a low power state. A power decrease is initiated for selected ones of the unneeded functional units that are determined to be in an operable power state.
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