- 专利标题: Page state directory for managing unified virtual memory
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申请号: US14055318申请日: 2013-10-16
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公开(公告)号: US09767036B2公开(公告)日: 2017-09-19
- 发明人: Jerome F. Duluk, Jr. , Cameron Buschardt , Sherry Cheung , James Leroy Deming , Samuel H. Duncan , Lucien Dunning , Robert George , Arvind Gopalakrishnan , Mark Hairgrove , Chenghuan Jia , John Mashey
- 申请人: NVIDIA Corporation
- 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: Artegis Law Group, LLP
- 主分类号: G06F12/10
- IPC分类号: G06F12/10 ; G06F12/1009 ; G06F12/109 ; G06F12/1072 ; G06F11/07 ; G06F12/12 ; G06F12/08
摘要:
A system for managing virtual memory. The system includes a first processing unit configured to execute a first operation that references a first virtual memory address. The system also includes a first memory management unit (MMU) associated with the first processing unit and configured to generate a first page fault upon determining that a first page table that is stored in a first memory unit associated with the first processing unit does not include a mapping corresponding to the first virtual memory address. The system further includes a first copy engine associated with the first processing unit. The first copy engine is configured to read a first command queue to determine a first mapping that corresponds to the first virtual memory address and is included in a first page state directory. The first copy engine is also configured to update the first page table to include the first mapping.
公开/授权文献
- US20140281255A1 PAGE STATE DIRECTORY FOR MANAGING UNIFIED VIRTUAL MEMORY 公开/授权日:2014-09-18
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