发明申请
- 专利标题: DMA completion mechanism
- 专利标题(中): DMA完成机制
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申请号: US10631541申请日: 2003-07-31
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公开(公告)号: US20050027902A1公开(公告)日: 2005-02-03
- 发明人: Matthew King , Peichum Liu , David Mui , Takeshi Yamazaki
- 申请人: Matthew King , Peichum Liu , David Mui , Takeshi Yamazaki
- 申请人地址: US NY Armonk JP Tokyo
- 专利权人: International Business Machines Corporation,Sony Computer Entertainment Inc.
- 当前专利权人: International Business Machines Corporation,Sony Computer Entertainment Inc.
- 当前专利权人地址: US NY Armonk JP Tokyo
- 主分类号: G06F13/28
- IPC分类号: G06F13/28
摘要:
A method, an apparatus, and a computer program product are provided for completing a plurality of (direct memory access) DMA commands in a computer system. It is determined whether the DMA commands are chained together as a list DMA command. Upon a determination that the DMA commands are chained together as a list DMA command, it is also determined whether a current list element of the list DMA command is fenced. Upon a determination that the current list element is not fenced, a next list element is fetched and processed before the current list element has been completed.
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