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.

Date of Patent:
Mar. 01, 2016

Filed:

Jul. 29, 2013
Applicant:

Futurewei Technologies, Inc., Plano, TX (US);

Inventors:

Iulin Lih, San Jose, CA (US);

Naxin Zhang, Singapore, SG;

Chenghong He, Shenzhen, CN;

Hongbo Shi, Xian, CN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2006.01); G06F 12/12 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0806 (2013.01); G06F 12/0826 (2013.01); G06F 12/121 (2013.01); G06F 12/0815 (2013.01);
Abstract

A processing network comprising a cache configured to store copies of memory data as a plurality of cache lines, a cache controller configured to receive data requests from a plurality of cache agents, and designate at least one of the cache agents as an owner of a first of the cache lines, and a directory configured to store cache ownership designations of the first cache line, and wherein the directory is encoded to support substantially simultaneous ownership of the first cache line by a plurality but less than all of the cache agents. Also disclosed is a method comprising receiving coherent transactions from a plurality of cache agents, and storing ownership designations of a plurality of cache lines by the cache agents in a directory, wherein the directory is configured to support storage of substantially simultaneous ownership designations for a plurality but less than all of the cache agents.


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