On 30/09/13 15:22, Santosh Shilimkar wrote: > On Monday 30 September 2013 10:16 AM, Marc Zyngier wrote: >> 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? >> > No it isn't a irq controller rather a event router. Patch is missing > reference to the previous discussion. Previous discussion is here [1] > > Regards, > Santosh > > [1] https://lkml.org/lkml/2013/9/13/413 Right. I need to go and understand that bit first. Thanks Santosh. M. -- Jazz is not dead. It just smells funny... -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
