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. 14, 2021
Filed:
Feb. 21, 2020
Nxp Usa, Inc., Austin, TX (US);
Paul Kimelman, Alamo, CA;
Brian Christopher Kahne, Austin, TX (US);
NXP USA, Inc., Austin, TX (US);
Abstract
In a data processing system having a local first level cache which covers an address range of a backing store, a distributed second level cache has a plurality of distributed cache portions, each assigned as a home cache portion for a corresponding non-overlapping address sub-range of the address range of the backing store. Upon receipt of a read access request to a read-only address location of the backing store, the local first level cache is configured to, when the read-only address location misses in the local first level cache, send the read access request to a most local distributed cache portion of the plurality of distributed cache portions for the local first level cache to determine whether the read-only access location hits or misses in the most local distributed cache portion, in which the most local distributed cache portion is not the home cache portion for the read-only address location.