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:
Mar. 19, 2019
Filed:
Feb. 01, 2008
Lakshminarayana B. Arimilli, Austin, TX (US);
Ravi K. Arimilli, Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
Lakshminarayana B. Arimilli, Austin, TX (US);
Ravi K. Arimilli, Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A memory lock mechanism within a multi-processor system is disclosed. A lock control section is initially assigned to a data block within a system memory of the multiprocessor system. In response to a request for accessing the data block by a processing unit within the multiprocessor system, a determination is made by a memory controller whether or not the lock control section of the data block has been set. If the lock control section of the data block has been set, the request for accessing the data block is denied. Otherwise, if the lock control section of the data block has not been set, the lock control section of the data block is set, and the request for accessing the data block is allowed.