From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Dave Jones <davej@redhat.com>
Cc: Pavel Vasilyev <pavel@pavlinux.ru>, linux-kernel@vger.kernel.org
Subject: Re: GART_IOMMU without AGP
Date: Wed, 22 Jul 2009 23:17:38 +0100 [thread overview]
Message-ID: <20090722231738.21de4deb@lxorguk.ukuu.org.uk> (raw)
In-Reply-To: <20090722213746.GA20241@redhat.com>
On Wed, 22 Jul 2009 17:37:46 -0400
Dave Jones <davej@redhat.com> wrote:
> On Wed, Jul 22, 2009 at 07:26:49PM +0400, Pavel Vasilyev wrote:
> > In the kernel configuration, if I choose x86_64 and PCI, then choose the item
> > "Garth IOMMU support", which, in turn, chooses not to switch off, support for
> > AGP. But many IOMMU system does not have AGP bus.
>
> The lack of AGP slots doesn't mean a lack of AGP bus.
> It's part of the K8 on-CPU northbridge.
And the user is selecting CONFIG_AGP to select AGP devices rather than to
demonstrate their deep guru grade knowledge of K8 northbridges. Not only
that but CONFIG_AGP controls the display of AGP video card options so it
is a selection for offered devices not really an internal detail.
So I think Pavel is right here.
next prev parent reply other threads:[~2009-07-22 22:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-22 15:26 Pavel Vasilyev
2009-07-22 21:37 ` Dave Jones
2009-07-22 21:58 ` Pavel Vasilyev
2009-07-22 22:25 ` Dave Jones
2009-07-22 22:44 ` Alan Cox
2009-07-22 22:17 ` Alan Cox [this message]
2009-07-22 22:28 ` Dave Jones
2009-07-22 23:05 ` Pavel Vasilyev
2009-07-22 22:34 ` Andi Kleen
2009-07-22 23:15 Pavel Vasilyev
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