Re: [PATCH 3/9] x86/moorestown: add moorestown platform flags

From: Ingo Molnar
Date: Fri Jun 26 2009 - 14:46:01 EST



* Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote:

> On Fri, 26 Jun 2009 09:19:55 +0200
> Ingo Molnar <mingo@xxxxxxx> wrote:
> > > void platform_feature_init_default(int subarch_id)
> > > {
> > > - printk(KERN_INFO "Use default X86 platform feature set\n");
> > > + if ((subarch_id >= 0) && (subarch_id < N_X86_SUBARCHS)) {
> > > + if (subarch_id == X86_SUBARCH_MRST) {
> > > + setup_mrst_default_feature();
> > > + return;
> > > + }
> > > + } else {
> > > + printk(KERN_INFO "Use default X86 platform feature
> > > set\n");
> > > + }
> > > }
> >
> > Why dont we have some clean and robust PCI config space based
> > enumeration instead of this boot ID based thing?
>
> MRST has special PCI support that depends on having the platform
> identified already, so if you want to use something other than a
> flag here, maybe we could use an SFI string instead.

An SFI flag would be nicer than any PCI space method i guess - if it
can be accessed early enough.

Ingo
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