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From: Ingo Molnar <mingo@elte.hu>
To: Jack Steiner <steiner@sgi.com>
Cc: Andi Kleen <andi@firstfloor.org>,
	tglx@linutronix.de, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC 8/8] x86_64: Support for new UV apic
Date: Wed, 26 Mar 2008 08:38:23 +0100	[thread overview]
Message-ID: <20080326073823.GD3442@elte.hu> (raw)
In-Reply-To: <20080325175657.GA6262@sgi.com>


* Jack Steiner <steiner@sgi.com> wrote:

> > > -        obj-y				+= genapic_64.o genapic_flat_64.o
> > > +        obj-y				+= genapic_64.o genapic_flat_64.o genx2apic_uv_x.o
> > 
> > Definitely should be a CONFIG
> 
> Not sure that I understand why. The overhead of UV is minimal & we 
> want UV enabled in all distro kernels. OTOH, small embedded systems 
> probably want to eliminate every last bit of unneeded code.
> 
> Might make sense to have a config option. Thoughts????

i wouldnt mind having UV enabled by default (it can be a config option 
but default-enabled on generic kernels so all distros will pick this hw 
support up), but we definitely need the genapic unification before we 
can add more features.

	Ingo

  parent reply	other threads:[~2008-03-26  7:38 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-24 18:21 [RFC 8/8] x86_64: Support for new UV apic Jack Steiner
2008-03-25 10:25 ` Andi Kleen
2008-03-25 17:56   ` Jack Steiner
2008-03-25 18:06     ` Andi Kleen
2008-03-26  2:23       ` Jeremy Fitzhardinge
2008-03-26  3:22         ` Glauber Costa
2008-03-26  7:29         ` Ingo Molnar
2008-03-26  7:38     ` Ingo Molnar [this message]
2008-03-30 20:23       ` Yinghai Lu
2008-03-30 21:03         ` Jack Steiner
2008-03-30 21:18           ` Andi Kleen
2008-03-30 23:29             ` Yinghai Lu
2008-03-31  2:18               ` Jack Steiner
2008-03-31  2:20                 ` Yinghai Lu
2008-03-31 12:33                   ` Ingo Molnar
2008-03-31 12:52                     ` Andi Kleen
2008-03-31 18:42                     ` Yinghai Lu
2008-03-31  6:48               ` Andi Kleen
2008-03-25 14:30 ` Ingo Molnar
2008-03-25 16:31   ` Jack Steiner
2008-03-26  3:24     ` Glauber Costa
2008-03-30 20:41 ` Yinghai Lu
2008-03-30 21:08   ` Jack Steiner
2008-03-30 23:24     ` Yinghai Lu

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