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:
Jan. 10, 2023
Filed:
Jan. 14, 2022
Apple Inc., Cupertino, CA (US);
Gaurav Garg, San Jose, CA (US);
Sagi Lahav, Kiryat Bialik, IL;
Lital Levy-Rubin, Tel Aviv, IL;
Gerard Williams, III, Los Altos, CA (US);
Samer Nassar, Haifa, IL;
Per H. Hammarlund, Sunnyvale, CA (US);
Harshavardhan Kaushikkar, San Jose, CA (US);
Srinivasa Rangan Sridharan, Santa Clara, CA (US);
Jeff Gonion, Campbell, CA (US);
James Vash, Los Gatos, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are disclosed relating to an I/O agent circuit of a computer system. The I/O agent circuit may receive, from a peripheral component, a set of transaction requests to perform a set of read transactions that are directed to one or more of a plurality of cache lines. The I/O agent circuit may issue, to a first memory controller circuit configured to manage access to a first one of the plurality of cache lines, a request for exclusive read ownership of the first cache line such that data of the first cache line is not cached outside of the memory and the I/O agent circuit in a valid state. The I/O agent circuit may receive exclusive read ownership of the first cache line, including receiving the data of the first cache line. The I/O agent circuit may then perform the set of read transactions with respect to the data.