From: Dave Jones <davej@redhat.com>
To: Jon Smirl <jonsmirl@gmail.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: Intel AGP support attaching to wrong PCI IDs
Date: Sat, 5 Feb 2005 23:05:26 -0500 [thread overview]
Message-ID: <20050206040526.GA2908@redhat.com> (raw)
In-Reply-To: <9e4733910502051745c25d6f@mail.gmail.com>
On Sat, Feb 05, 2005 at 08:45:19PM -0500, Jon Smirl wrote:
> I have an i875 chipset with these two devices:
>
> 8086:2578 - 00:00.0 Host bridge: Intel Corp. 82875P/E7210 Memory
> Controller Hub (rev 02)
> 8086:2579 - 00:01.0 PCI bridge: Intel Corp. 82875P Processor to AGP
> Controller (rev 02)
>
> In the legacy io space thread we are talking about making a device
> driver for host bridges. The Intel AGP drivers (in my case
> agpgart-intel-mch) are attaching to the PCI IDs of the host bus device
> instead of the AGP bridge. This blocks us from making a host bridge
> driver.
> PCI_DEVICE_ID_INTEL_82875_HB 0x2578
>
> Shouldn't they be attaching to device 0x2579? It looks like all of the
> drivers have this problem and are attaching to the host bus PCI IDs
> instead of the AGP bridge ID.
Take a peek at 'lspci -vv' output. You'll notice that the AGP
capabilities are attached to the host bridge.
Dave
next prev parent reply other threads:[~2005-02-06 4:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-06 1:45 Intel AGP support attaching to wrong PCI IDs Jon Smirl
2005-02-06 4:05 ` Dave Jones [this message]
2005-02-06 5:58 ` Jon Smirl
2005-02-06 6:08 ` Dave Jones
1996-01-19 21:38 ` Maciej W. Rozycki
2005-02-06 6:49 ` Jon Smirl
2005-02-06 7:25 ` Kyle Moffett
2005-02-06 21:37 ` Ian Pilcher
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