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. 07, 2020

Filed:

Nov. 30, 2017
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Kenneth M. Valk, Rochester, MN (US);

Guy L. Guthrie, Austin, TX (US);

Derek E. Williams, Austin, TX (US);

Michael S. Siegel, Raleigh, NC (US);

John D. Irish, Rochester, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0831 (2016.01); G06F 12/0864 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0831 (2013.01); G06F 12/0864 (2013.01); G06F 2212/6032 (2013.04); G06F 2212/621 (2013.01);
Abstract

A claw-back request, received from an accelerator, is issued for an address line. While waiting for a response to the claw-back request, a cast-out push request with a matching address line is received. The cast-out push request is associated with a cache having a modified copy of the address line. A combined-response, associated with the cast-out push request, is received from a bus. Data associated with the modified copy of the address line is received from the cache. A claw-back response, with the data associated with the modified version of the address line, is issued to an accelerator.


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