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:
Dec. 24, 2013
Filed:
Nov. 30, 2011
Kun Xu, Austin, TX (US);
Tommi M. Jokinen, Austin, TX (US);
David B. Kramer, Cedar Park, TX (US);
Freescale Semiconductor, Inc., Austin, TX (US);
Abstract
A method includes generating, by a first software process of the data processing system, a source partition descriptor for a DMA job which requires access to a first partition of a memory which is assigned to a second software process of the data processing system and not assigned to the first software process. The source partition descriptor comprises a partition identifier which identifies the first partition of the memory. The DMA unit receives the source partition descriptor and generates a destination partition descriptor for the DMA job. Generating the destination partition descriptor includes translating, by the DMA unit, the partition identifier to a buffer pool identifier which identifies a physical address within the first partition of the memory which is assigned to the second software process; and storing, by the DMA unit, the buffer pool identifier in the destination partition descriptor.