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. 12, 2015
Filed:
Apr. 03, 2008
Gregory F. Pfister, Austin, TX (US);
Gregory F. Pfister, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Atomic operations within an I/O device are supported by processor architectures that are not required to include specific atomic instructions, by issuing the atomic operations from an I/O hub. A descriptor that specifies the atomic operation and a target address is retrieved by, or sent to, the hub. A trigger event, which may be a programmed I/O write to the hub with an address of the descriptor, or the contents of the descriptor itself, causes the I/O hub to issue the atomic operation. When the atomic operation is complete on the I/O device interconnect, the result is returned to the hub and a host is notified. The host then retrieves the results of the atomic operation from the hub. The host notification can be performed by interrupt or by polling the hub until a status change is detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile