MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202618066336 A) filed by Apple Inc. on May 26, 2026, for Scalable Interrupts.
Inventors include Gonion, Jeffrey E.; Tucker, Charles E.; Kuzi, Tal; Russo, Richard F.; Agarwal, Mridul; Tsay, Christopher M.; Levinsky, Gideon N. Filed On; Wen, Shih-Chieh; and Zimet, Lior.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: An interrupt delivery mechanism for a system includes and interrupt controller and a plurality of cluster interrupt controllers coupled to respective pluralities of processors in an embodiment. The interrupt controller may serially transmit an 5 interrupt request to respective cluster interrupt controllers, which may acknowledge (Ack) or non-acknowledge (Nack) the interrupt based on attempting to deliver the interrupt to processors to which the cluster interrupt controller is coupled. In a soft iteration, the cluster interrupt controller may attempt to deliver the interrupt to processors that are powered on, without attempting to power on 10 processors that are powered off. If the soft iteration does not result in an Ack response from one of the plurality of cluster interrupt controllers, a hard iteration may be performed in which the powered-off processors may be powered on. 15 62
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