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:
Apr. 28, 2020
Filed:
Dec. 05, 2018
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Ashok T. Venkatachar, Fremont, CA (US);
Anthony Jarvis, Boston, MA (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
Systems and methods selectively filter, buffer, and process cache coherency probes. A processor includes a probe buffering unit that includes a cache coherency probe buffer. The probe buffering unit receives cache coherency probes and memory access requests for a cache. The probe buffering unit identifies and discards any of the probes that are directed to a memory block that is not cached in the cache, and buffers at least a subset of the remaining probes in the probe buffer. The probe buffering unit submits to the cache, in descending order of priority, one or more of: any buffered probes that are directed to the memory block to which a current memory access request is also directed; any current memory access requests that are directed to a memory block to which there is not a buffered probe also directed; and any buffered probes when there is not a current memory access request.