The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 2010
Filed:
Nov. 05, 2007
Memory controller and method for multi-path address translation in non-uniform memory configurations
Brian D. Allison, Rochester, MN (US);
Joseph A. Kirscht, Rochester, MN (US);
Elizabeth A. Mcglone, Rochester, MN (US);
Brian D. Allison, Rochester, MN (US);
Joseph A. Kirscht, Rochester, MN (US);
Elizabeth A. McGlone, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
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.