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US 2006/0136642 A1Published application
Interrupt distribution for multiprocessor system
OwnerPing Ooiinventor
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Abstract
An interrupt distribution circuit is disclosed that receives interrupt signals and distributes the interrupt signals among a plurality of processors. The interrupt distribution circuit may enable a multi-processor system to be built using a lower cost chipset designed for systems having a single processor.
Claims21
In an interrupt distribution circuit external to an interrupt controller, a method comprising
- receiving an interrupt signal from the interrupt controller, and
- activating a processor of a plurality of processors to process the interrupt signal.
A method comprising
- receiving an interrupt signal from a chipset,
- selecting a processor from a plurality of processors, and
- interrupting the selected processor to execute an interrupt handler routine.
A system comprising
- a plurality of processors to process interrupt signals,
- an interrupt controller to issue interrupt signals, and
- an interrupt distribution circuit external to the interrupt controller to distribute interrupt signals among the plurality of processors.
A system comprising
- a plurality of processors,
- an input-output controller hub to receive interrupt requests from an input-output device and to generate interrupt signals in response to receiving interrupt requests, and
- an interrupt distribution circuit external to the input-output controller hub,
- the interrupt distribution circuit to distribute processing of the interrupt signals among the plurality of processor.
1 more element
An interrupt distribution circuit comprising a circuitry
- to alternately select between a first processor and a second processors of a plurality of processors in response to an interrupt signal received from an interrupt controller, and
- to interrupt the selected processor to process the interrupt signal.
Dependencies are inferred from the claim text.