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:
Oct. 16, 2018
Filed:
Dec. 21, 2015
Intel Corporation, Santa Clara, CA (US);
Krishna N. Vinod, San Jose, CA (US);
Avinash Sodani, Portland, OR (US);
Zainulabedin J. Aurangabadwala, Fremont, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A processor includes a processing core, a L1 cache comprising a first processing core and a first L1 cache comprising a first L1 cache data entry of a plurality of L1 cache data entries to store data. The processor also includes an L2 cache comprising a first L2 cache data entry of a plurality of L2 cache data entries. The first L2 cache data entry corresponds to the first L1 cache data entry and each of the plurality of L2 cache data entries are associated with a corresponding presence bit (pbit) of a plurality of pbits. Each of the plurality of pbits indicates a status of a corresponding one of the plurality of L2 cache data entries. The processor also includes a cache controller, which in response to a first request among a plurality of requests to access the data at the first L1 cache data entry, determines that a copy of the data is stored in the first L2 cache data entry; and retrieves the copy of the data from the L2 cache data entry in view of the status of the pbit.