Clearing the interrupt

Mohan Kumar M mohan at in.ibm.com
Wed Mar 7 16:08:00 EST 2007


On Tue, Mar 06, 2007 at 10:04:47PM +0100, Benjamin Herrenschmidt wrote:
> > Is there any problem with the above approach? Is there any restriction
> > such that a cpu which acknowledged the interrupt only should send the eoi
> > signal?
> 
> While I don't think there -should- be any restriction, I also seem to
> remember that the xics "emulation" done by the firmware on things like
> JS20 requires the eoi to be done from the CPU where the interrupt
> originated.
>

Thanks Ben.

If thats the case, is it okay to call eoi handler from all cpus so that
above case will be satisfied?

Regards,
Mohan.




More information about the Linuxppc-dev mailing list