发明授权
US07065630B1 Dynamically creating or removing a physical-to-virtual address mapping in a memory of a peripheral device
有权
在外围设备的存储器中动态创建或删除物理到虚拟地址映射
- 专利标题： Dynamically creating or removing a physical-to-virtual address mapping in a memory of a peripheral device
- 专利标题（中）： 在外围设备的存储器中动态创建或删除物理到虚拟地址映射
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申请号： US10650593申请日： 2003-08-27
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公开(公告)号： US07065630B1公开(公告)日： 2006-06-20
- 发明人: Herbert O. Ledebohm , Mark A. Einkauf , Franck R. Diard , Jeffrey C. Doughty
- 申请人： Herbert O. Ledebohm , Mark A. Einkauf , Franck R. Diard , Jeffrey C. Doughty
- 申请人地址： US CA Santa Clara
- 专利权人： NVIDIA Corporation
- 当前专利权人： NVIDIA Corporation
- 当前专利权人地址： US CA Santa Clara
- 代理机构： Townsend and Townsend and Crew LLP
- 主分类号： G06F12/02
- IPC分类号： G06F12/02
摘要：
Systems and methods for providing on-demand memory management. In response to a mapping request from a device driver or other program, a first portion of the memory is mapped to one or more virtual addresses in a first region of a virtual memory space so that it can be directly accessed by the CPU. In response to an unmapping request the first portion of the memory is unmapped. Mapping and unmapping requests may be made at any time.
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