Date: Wed, 16 Aug 2006 18:35:57 +0200
From: Andi Kleen <ak@suse.de>
To: Len Brown <lenb@kernel.org>
Cc: Len Brown <len.brown@intel.com>, linux-acpi@vger.kernel.org,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH for review] [54/145] x86_64: Remove obsolete PIC mode
Message-Id: <20060816183557.f7ab6b69.ak@suse.de>
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	<200608161231.49856.len.brown@intel.com>
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On Wed, 16 Aug 2006 12:31:49 -0400
Len Brown <len.brown@intel.com> wrote:

> On Thursday 10 August 2006 15:36, Andi Kleen wrote:
> 
> 
> > PIC mode is an outdated way to drive the APICs that was used on 
> > some early MP boards. It is not supported in the ACPI model.
> > 
> > It is unlikely to be ever configured by any x86-64 system
> > 
> > Remove it thus.
> 
> Is there any reason we can't entirely remove MPS from x86_64?
> (asside from the routines that ACPI uses)

There are still people who like to compile with CONFIG_ACPI=n or use 
acpi=off

I wouldn't have a problem with disallowing CONFIG_ACPI=n, but acpi=off
still needs to work.

A lot of the newer systems don't have mptables anymore, but there are 
still a lot around who do.

-Andi

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