Date: Sat, 17 Sep 2005 13:44:14 -0700 From: Nate Lawson <nate@root.org> To: eta@lclark.edu Cc: cvs-src@FreeBSD.org, Mike Silbersack <silby@silby.com>, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/conf files.i386 src/sys/pci agp_ati.c agpreg.h src/sys/modules/agp Makefile Message-ID: <432C801E.2090904@root.org> In-Reply-To: <1126984598.45786.29.camel@leguin> References: <200509170336.j8H3alVZ083992@repoman.freebsd.org> <20050917034526.U3662@odysseus.silby.com> <432C68D2.2060603@root.org> <1126984598.45786.29.camel@leguin>
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Eric Anholt wrote: > On Sat, 2005-09-17 at 12:04 -0700, Nate Lawson wrote: > >>Mike Silbersack wrote: >> >>>I think I asked in irc a while ago, but I can't recall the answer. >>> >>>I don't seem to have agp support on my laptop, which has: >>> >>>(--) PCI:*(0:2:0) Intel Corporation 82852/855GM Integrated Graphics >>>Device rev 2, Mem @ 0xe8000000/27, >>>0xe0000000/19, I/O @ 0x1800/3 >>>(--) PCI: (0:2:1) Intel Corporation 82852/855GM Integrated Graphics >>>Device rev 2, Mem @ 0xf0000000/27, >>>0xe0080000/19 >>> >>>According to Xorg. Was there something odd about the chipset, or is it >>>just a matter of adding device IDs? This is with RELENG_6. >> >>855GM and GMS are supported by the latest beta Xorg. So you just need >>to update your Xorg-server port. > > > 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. -- Nate
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