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:
Jun. 13, 2017
Filed:
Sep. 22, 2015
Qualcomm Incorporated, San Diego, CA (US);
Derek Robert Hower, Durham, NC (US);
Harold Wade Cain, III, Raleigh, NC (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
Providing shared cache memory allocation control in shared cached memory systems is disclosed. In one aspect, a cache controller of a shared cache memory system comprising a plurality of cache lines is provided. The cache controller comprises a cache allocation circuit providing a minimum mapping bitmask for mapping a Quality of Service (QoS) class to a minimum partition of the cache lines, and a maximum mapping bitmask for mapping the QoS class to a maximum partition of the cache lines. The cache allocation circuit receives a memory access request comprising a QoS identifier (QoSID) of the QoS class, and is configured to determine whether the memory access request corresponds to a cache line of the plurality of cache lines. If not, the cache allocation circuit selects, as a target partition, the minimum partition mapped to the QoS class or the maximum partition mapped to the QoS class.