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. 05, 2022
Filed:
Jun. 11, 2020
Arm Limited, Cambridge, GB;
Andrew Brookfield Swaine, Sheffield, GB;
Peter Andrew Riocreux, Cheadle, GB;
Arm Limited, Cambridge, GB;
Abstract
An apparatus comprises transaction handling circuitry to issue memory access transactions, each memory access transaction specifying an epoch identifier indicative of a current epoch in which the memory access transaction is issued; transaction tracking circuitry to track, for each of at least two epochs, a number of outstanding memory access transactions issued in that epoch; barrier termination circuitry to signal completion of a barrier termination command when the transaction tracking circuitry indicates that there are no outstanding memory access transactions remaining which were issued in one or more epochs preceding a barrier point; and epoch changing circuitry to change the current epoch to a next epoch, in response to a barrier point signal representing said barrier point. This helps to reduce the circuit area overhead for tracking completion of memory access transactions preceding a barrier point.