Invention Grant
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
- Patent Title: Memory controller and method for multi-path address translation in non-uniform memory configurations
- Patent Title (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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Application No.: US11934974Application Date: 2007-11-05
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Publication No.: US07793034B2Publication Date: 2010-09-07
- Inventor: Brian D. Allison , Joseph A. Kirscht , Elizabeth A. McGlone
- Applicant: Brian D. Allison , Joseph A. Kirscht , Elizabeth A. McGlone
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Bockhop & Associates LLC
- Main IPC: G06F12/00
- IPC: G06F12/00

Abstract:
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.
Public/Granted literature
- US20090119478A1 Memory Controller and Method for Multi-Path Address Translation in Non-Uniform Memory Configurations Public/Granted day:2009-05-07
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