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:
Mar. 28, 2023
Filed:
Aug. 04, 2021
International Business Machines Corporation, Armonk, NY (US);
Derek E. Williams, Round Rock, TX (US);
Michael S. Siegel, Raleigh, NC (US);
Guy L. Guthrie, Austin, TX (US);
Bernard C. Drerup, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A multiprocessor data processing system includes multiple vertical cache hierarchies supporting a plurality of processor cores, a system memory, and an interconnect fabric coupled to the system memory and the multiple vertical cache hierarchies. Based on a request of a requesting processor core among the plurality of processor cores, a master in the multiprocessor data processing system issues, via the interconnect fabric, a read-type memory access request. The master receives via the interconnect fabric at least one beat of conditional data issued speculatively on the interconnect fabric by a controller of the system memory prior to receipt by the controller of a systemwide coherence response for the read-type memory access request. The master forwards the at least one beat of conditional data to the requesting processor core.