linux-kernel - Re: [PATCH] x86: fix probe_nr

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Message-ID: <20080822051656.GA7696@elte.hu>
Date:	Fri, 22 Aug 2008 07:16:56 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	Cyrill Gorcunov <gorcunov@...il.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Alex Nixon <alex.nixon@...rix.com>,
	Alan Mayer <ajm@....com>
Subject: Re: [PATCH] x86: fix probe_nr_irqs for xen


* Yinghai Lu <yhlu.kernel@...il.com> wrote:

> > 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.?

there's a few weeks of inactivity expected in that area i think - so if 
you'd like to pick it up from there, feel free ...

but apic_32/64.c is looking already pretty good in tip/master:

 1 file changed, 391 insertions(+), 358 deletions(-)

the most significant bit of that delta seems to be around x2apic, 
calibration differences and some older 32-bit legacies which are not on 
the 64-bit side (but which we can add safely).

	Ingo
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