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:
May. 26, 2020
Filed:
Nov. 26, 2018
Applicant:
Ati Technologies Ulc, Markham, CA;
Inventors:
Assignee:
ATI Technologies ULC, Markham, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 12/0862 (2016.01); G06F 12/0875 (2016.01); G06F 12/0871 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0862 (2013.01); G06F 12/0871 (2013.01); G06F 12/0875 (2013.01);
Abstract
A technique for prefetching data for a cache is provided. The technique includes detecting access to a data block. In response to the detection, a prefetch block generates proposed blocks for prefetch. The prefetch block also examines prefetch tracking data to determine whether a prefetch group including the proposed blocks is marked as already having been prefetched. If the group has been marked as already having been prefetched, then prefetch block does not prefetch that data, thereby avoiding traffic between the prefetch block and the cache memory. Using this technique, unnecessary requests to prefetch data into the cache memory are avoided.