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:
Jul. 17, 2018
Filed:
Oct. 24, 2014
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Ati Technologies Ulc, Markham, CA;
Vydhyanathan Kalyanasundharam, San Jose, CA (US);
Philip Ng, Toronto, CA;
Maggie Chan, Markham, CA;
Vincent Cueva, Toronto, CA;
Anthony Asaro, Toronto, CA;
Jimshed Mirza, Toronto, CA;
Greggory D. Donley, San Jose, CA (US);
Bryan Broussard, Austin, TX (US);
Benjamin Tsien, Fremont, CA (US);
Yaniv Adiri, Rishon LeZion, IL;
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
ATI Technologies ULC, Markham, Ontario, CA;
Abstract
The present invention provides for page table access and dirty bit management in hardware via a new atomic test[0] and OR and Mask. The present invention also provides for a gasket that enables ACE to CCI translations. This gasket further provides request translation between ACE and CCI, deadlock avoidance for victim and probe collision, ARM barrier handling, and power management interactions. The present invention also provides a solution for ARM victim/probe collision handling which deadlocks the unified northbridge. These solutions includes a dedicated writeback virtual channel, probes for IO requests using 4-hop protocol, and a WrBack Reorder Ability in MCT where victims update older requests with data as they pass the requests.