cvs commit: src/sys/conf files.i386 src/sys/pci agp_ati.c
agpreg.h src/sys/modules/agp Makefile
nate at root.org
Tue Sep 20 13:01:37 PDT 2005
John Baldwin wrote:
> On Saturday 17 September 2005 04:44 pm, Nate Lawson wrote:
>>Eric Anholt wrote:
>>>We clarified in private mail that the agp device isn't attaching. I
>>>think acpi_video is beating it out, confirming that we really need to be
>>>able to somehow share devices well for video. That's 3 drivers now
>>>(agp, drm, and acpi_video) that would all like to play.
>>Ah. Yes, I think we'll have to do something like what I did for cpu
>>devices. Basically, cpu0, cpu1, etc. implement a pseudo bus and
>>multiple drivers attach below it. Do a devinfo to see this. There is
>>no real way in newbus to have multiple drivers attached to a device if
>>it doesn't implement a bus interface.
>>This will require some design thinking.
> Yes, a vgapci(4) driver or some such. I've started tinkering in an (old) p4
> branch (jhb_agp) with moving the various agp drivers to be children of
> hostb(4) so that one would be able to kldload agp as a first step.
Exactly. Thanks for picking up this work. I'll track your p4 branch
and maybe contribute a little, especially to the design.
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