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. 19, 2016
Filed:
Sep. 15, 2011
Matthew D Pierson, Murphy, TX (US);
Joseph R M Zbiciak, Arlington, TX (US);
Kai Chirca, Richardson, TX (US);
Amitabh Menon, Lewisville, TX (US);
Timothy D Anderson, Dallas, TX (US);
Matthew D Pierson, Murphy, TX (US);
Joseph R M Zbiciak, Arlington, TX (US);
Kai Chirca, Richardson, TX (US);
Amitabh Menon, Lewisville, TX (US);
Timothy D Anderson, Dallas, TX (US);
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Abstract
A prefetch cancelation arbiter improves access to a shared memory resource by arbitrarily canceling speculative prefetches. The prefetch cancelation arbiter applies a set of arbitrary policies to speculative prefetches to select one or more of the received speculative prefetches to cancel. The selected speculative prefetches are canceled and a cancelation notification of each canceled speculative prefetch is sent to a higher-level memory component such as a prefetch unit or a local memory arbiter that is local to the processor associated with the canceled speculative prefetch. The set of arbitrary policies is used to reduce memory accesses to the shared memory resource.