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:
Jul. 04, 2023
Filed:
Jun. 18, 2021
International Business Machines Corporation, Armonk, NY (US);
Derek E. Williams, Round Rock, TX (US);
Guy L. Guthrie, Austin, TX (US);
Hugh Shen, Round Rock, TX (US);
Jeffrey A. Stuecheli, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A processing unit includes a processor core and an associated cache memory. The cache memory establishes a reservation of a hardware thread of the processor core for a store target address and services a store-conditional request of the processor core by conditionally updating the shared memory with store data based on the whether the hardware thread has a reservation for the store target address. The cache memory receives a hint associated with the store-conditional request indicating an intent of the store-conditional request. The cache memory protects the store target address against access by any conflicting memory access request during a protection window extension following servicing of the store-conditional request. The cache memory establishes a first duration for the protection window extension based on the hint having a first value and establishes a different second duration for the protection window extension based on the hint having a different second value.