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
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