Re: [PATCH] x86: fix probe_nr_irqs for xen

["Yinghai Lu" <yhlu.kernel@gmail.com>]

On Thu, Aug 21, 2008 at 9:26 PM, Ingo Molnar <mingo@elte.hu> wrote:
>
> * Jeremy Fitzhardinge <jeremy@goop.org> wrote:
>
>> > hope we can kill nr_irqs/NR_IRQS
>>
>> When irqs are truely dynamically allocated?
>
> they in essence already are truly dynamic in tip/master. Not yet
> unconditionally so on x86, we chose to also have a !SPARSEIRQ build
> model to make sure dense IRQ arrays still work fine as well. (that's far
> easier to test and validate than to keep a farm of cross compilers to
> other arches alive.)
>
> But by all means SPARSEIRQ is the primary and only model on x86.
>
> We could even plug in the dynamic vector allocator from Alan Mayer now,
> both on 32-bit and on 64-bit x86: Yinghai, any complications expected
> there? I guess we need to unify the local APIC code first.

apic_32.c and apic_64.c
irqinit_32.c and irqinit_64.c
irq_32.c and irq_64.c

Cyrill, is still working on merging apic_32.c apic_64.c.?

YH