Intel i830M behind transparent AGP bridge?

[John Baldwin]

On Friday 28 July 2006 10:46, Andreas Kohn wrote:
> Hi,
> 
> a friend of mine has a laptop which has an Intel i830M chipset.
> Linux recognizes the chip, and connects it to its agpgart.
> FreeBSD* also recognizes the chip, but see it as connected to the pci
> bus. This makes the drm parts fail to attach, as they require
> (according to the code) the i830 to be attached as AGP chip.
> 
> Is this a known problem, and even more, is there any known work-around
> to achieve working drm with i830M in this setup?

It should work fine in current, and possibly on 6.1-stable.  You need 'device 
agp' in your kernel, and I think the patches in -stable as with drmsub the 
idea is that agp0 attaches to the PCI device and creates a drmsub0 child, and 
then the drm driver attaches to drmsub0.

-- 
John Baldwin