发明授权
US07793034B2 Memory controller and method for multi-path address translation in non-uniform memory configurations
失效
用于非均匀内存配置中多路径地址转换的内存控制器和方法
- 专利标题: Memory controller and method for multi-path address translation in non-uniform memory configurations
- 专利标题(中): 用于非均匀内存配置中多路径地址转换的内存控制器和方法
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申请号: US11934974申请日: 2007-11-05
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公开(公告)号: US07793034B2公开(公告)日: 2010-09-07
- 发明人: Brian D. Allison , Joseph A. Kirscht , Elizabeth A. McGlone
- 申请人: Brian D. Allison , Joseph A. Kirscht , Elizabeth A. McGlone
- 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: Bockhop & Associates LLC
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
In a method of translating a physical memory address to a device address in a device memory space, a fast address translate of the physical memory address, adapted to translate addresses in uniformly configured device memory space, is performed thereby generating a first translated address. A full address translate of the physical memory address, adapted to translate addresses in non-uniformly configured device memory space, is also performed thereby generating a second translated address. Boundaries of a uniform portion of the device memory space are identified, to which the physical memory address is compared to determine if the physical memory address is in the uniform portion of the device memory space. When the physical memory address is in the uniform portion, the first translated address is selected as the device address. Otherwise, the second translated address is selected.
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