Re: [Fastboot] Re: [PATCH] kexec on ia64

[Michael Ellerman <michael@ellerman.id.au>]

On Mon, 2006-04-03 at 21:20 -0700, Andrew Morton wrote:
> Khalid Aziz <khalid_aziz@hp.com> wrote:
> > +/*
> > + * Terminate any outstanding interrupts
> > + */
> > +void terminate_irqs(void)
> > +{
> > +	struct irqaction * action;
> > +	irq_desc_t *idesc;
> > +	int i;
> > +
> > +	for (i=0; i<NR_IRQS; i++) {
> 
> 	for (i = 0; i < NR_IRQS; i++) {
> 
> > +		idesc = irq_descp(i);
> > +		action = idesc->action;
> > +		if (!action)
> > +			continue;
> > +		if (idesc->handler->end)
> > +			idesc->handler->end(i);
> > +	}
> > +}
> 
> Could we have a bit more description of what this function does, and why we
> need it?
> 
> Should other kexec-using architectures be using this?  If not, why does
> ia64 need it?

We've been kicking around a patch to do something similar, we also eoi
anything that's outstanding. I can't find the patch just now, but it's
on linuxppc somewhere I think.

cheers

-- 
Michael Ellerman
IBM OzLabs

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person

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