Messages in this thread | | | Date | Mon, 30 Sep 2013 15:16:03 +0100 | From | Marc Zyngier <> | Subject | Re: [RFC PATCH 1/6] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs |
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On 30/09/13 14:59, Sricharan R wrote: > In some socs the gic can be preceded by a crossbar IP which > routes the peripheral interrupts to the gic inputs. The peripheral > interrupts are associated with a fixed crossbar input line and the > crossbar routes that to one of the free gic input line. > > The DT entries for peripherals provides the fixed crossbar input line > as its interrupt number and the mapping code should associate this with > a free gic input line. This patch adds the support inside the gic irqchip > to handle such routable irqs. The routable irqs are registered in a linear > domain. The registered routable domain's callback should be implemented > to get a free irq and to configure the IP to route it.
Isn't this just another chained interrupt controller? How is it GIC specific?
M. -- Jazz is not dead. It just smells funny...
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