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:
Dec. 26, 2023

Filed:

Oct. 14, 2021
Applicant:

Arm Limited, Cambridge, GB;

Inventors:

Natalya Bondarenko, Antibes, FR;

Stefano Ghiggini, Antibes, FR;

Damien Matthieu Valentin Cathrine, Mougins, FR;

Ugo Castorina, Antibes, FR;

Assignee:

Arm Limited, Cambridge, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0862 (2016.01); G06F 12/0891 (2016.01); G06F 13/16 (2006.01); G06F 12/02 (2006.01); G06F 18/214 (2023.01);
U.S. Cl.
CPC ...
G06F 12/0862 (2013.01); G06F 12/0238 (2013.01); G06F 12/0891 (2013.01); G06F 13/1621 (2013.01); G06F 13/1668 (2013.01); G06F 18/214 (2023.01);
Abstract

An apparatus comprises a cache to store information, items of information in the cache being associated with addresses; cache lookup circuitry to perform lookups in the cache; and a prefetcher to prefetch items of information into the cache in advance of an access request being received for said items of information. The prefetcher selects addresses to train the prefetcher. In response to determining that a cache lookup specifying a given address has resulted in a hit and determining that a cache lookup previously performed in response to a prefetch request issued by the prefetcher for the given address resulted in a hit, the prefetcher selects the given address as an address to be used to train the prefetcher.


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