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:
Feb. 02, 2016
Filed:
Mar. 11, 2013
Via Technologies, Inc., New Taipei, TW;
Rodney E. Hooker, Austin, TX (US);
John Michael Greer, Austin, TX (US);
VIA TECHNOLOGIES, INC., New Taipei, TW;
Abstract
A microprocessor includes a first and second hardware data prefetchers configured to prefetch data into the microprocessor according to first and second respective algorithms, which are different. The second prefetcher is configured to detect a memory access pattern within a memory region and responsively prefetch data from the memory region according the second algorithm. The second prefetcher is further configured to provide to the first prefetcher a descriptor of the memory region. The first prefetcher is configured to stop prefetching data from the memory region in response to receiving the descriptor of the memory region from the second prefetcher. The second prefetcher also provides to the first prefetcher a communication to resume prefetching data from the memory region, such as when the second prefetcher subsequently detects that a predetermined number of memory accesses to the memory region are not in the memory access pattern.