发明授权
US07200688B2 System and method asynchronous DMA command completion notification by accessing register via attached processing unit to determine progress of DMA command
有权
系统和方法异步DMA命令完成通过访问寄存器通过附加处理单元来确定DMA命令的进度
- 专利标题： System and method asynchronous DMA command completion notification by accessing register via attached processing unit to determine progress of DMA command
- 专利标题（中）： 系统和方法异步DMA命令完成通过访问寄存器通过附加处理单元来确定DMA命令的进度
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申请号： US10448237申请日： 2003-05-29
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公开(公告)号： US07200688B2公开(公告)日： 2007-04-03
- 发明人: Michael Norman Day , Harm Peter Hofstee , Charles Ray Johns , Peichum Peter Liu , Thuong Quang Truong , Takeshi Yamazaki
- 申请人： Michael Norman Day , Harm Peter Hofstee , Charles Ray Johns , Peichum Peter Liu , Thuong Quang Truong , Takeshi Yamazaki
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Carr LLP
- 代理商 D'Ann N. Rifai
- 主分类号： G06F13/28
- IPC分类号： G06F13/28
摘要：
The present invention provides for asynchronous DMA command completion notification in a computer system. A command tag, associated with a plurality DMA command is generated. A DMA data movement command having the command tag is grouped with another DMA data movement command having the command tag. DMA commands belonging to the same tag group are monitored to see whether all DMA commands of the same tag group are completed.
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