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:
Apr. 30, 2024

Filed:

Dec. 27, 2021
Applicant:

Advanced Micro Devices, Inc., Santa Clara, CA (US);

Inventors:

Vydhyanathan Kalyanasundharam, Santa Clara, CA (US);

Joseph L. Greathouse, Santa Clara, CA (US);

Shyam Sekhar, Santa Clara, CA (US);

Assignee:

Advanced Micro Devices, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2018.01); G06F 9/32 (2018.01); G06F 9/48 (2006.01); G06F 13/42 (2006.01);
U.S. Cl.
CPC ...
G06F 9/3004 (2013.01); G06F 9/3001 (2013.01); G06F 9/325 (2013.01); G06F 9/485 (2013.01); G06F 13/4221 (2013.01);
Abstract

A system includes a hardware compare and swap (CAS) module communicatively coupled to a bus, the CAS module to perform an atomic operation in response to a first request from a first request agent for the atomic operation to be performed on a data value that is shared among a plurality of request agents and obtain a first result value. The atomic operation includes initiating a CAS command via the bus. The CAS module performs the atomic operation in response to a second request from a second request agent and obtains a second result value. Responsive to determining a failure to successfully process one or more of the first request or the second request, the hardware CAS module repetitively performs the atomic operation, for one or more of the first request or the second request.


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