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:
Jan. 31, 2023
Filed:
Mar. 29, 2021
Arm Limited, Cambridge, GB;
Joshua Randall, Austin, TX (US);
Jamshed Jalal, Austin, TX (US);
Tushar P. Ringe, Austin, TX (US);
Jesse Garrett Beu, Austin, TX (US);
Arm Limited, Cambridge, GB;
Abstract
An apparatus comprises snoop filter storage circuitry to store snoop filter entries corresponding to addresses and comprising sharer information. Control circuitry selects which sharers, among a plurality of sharers capable of holding cached data, should be issued with snoop requests corresponding to a target address, based on the sharer information of the snoop filter entry corresponding to the target address. The control circuitry is capable of setting a given snoop filter entry corresponding to a given address to an imprecise encoding in which the sharer information provides an imprecise description of which sharers hold cached data corresponding to the given address, and the given snoop filter entry comprises at least one sharer count value indicative of a number of sharers holding cached data corresponding to the given address.