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. 04, 2008
Filed:
Dec. 02, 2003
Applicant:
Herbert O. Ledebohm, Round Rock, TX (US);
Inventor:
Herbert O. Ledebohm, Round Rock, TX (US);
Assignee:
Nvidia Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/24 (2006.01); G06F 13/26 (2006.01); G06F 13/32 (2006.01); G06F 12/00 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A driver program for a multiprocessor subsystem includes an interrupt servicing routine (ISR) and a deferred procedure call (DPC). The ISR, invoked in response to an interrupt, determines whether any of the co-processors in the multiprocessor subsystem generated an interrupt. If one of the co-processors generated an interrupt, the ISR schedules the DPC for execution and disables sending of further interrupts from all of the co-processors. The DPC services pending interrupts from any of co-processors, then re-enables sending of interrupts from the co-processors.