Date: Thu, 25 Oct 2012 21:55:37 -0700 From: matt <sendtomatt@gmail.com> To: Justin Hibbits <chmeeedalf@gmail.com> Cc: freebsd-x11@freebsd.org, Albert Vest <alvest@brakiri.com>, freebsd-ppc@freebsd.org Subject: Re: Does drm/dri currently work on PPC? (SUCCESS!) Message-ID: <508A17C9.4030007@gmail.com> In-Reply-To: <5089F799.9030507@gmail.com> References: <5083C719.1040109@gmail.com> <CAKLtBChswXj7HcZeC=SaJgMNDrZXu==DHFP5PW4wB9=ruKSWWA@mail.gmail.com> <20121021092136.20307802@narn.knownspace> <50846392.70007@gmail.com> <CAHSQbTC7SA8qiVGQi%2BfmsmzYBVQLR09Dmzhjk1Ev=srsufc_HQ@mail.gmail.com> <5085F595.4050609@gmail.com> <20121022215945.436873dc@narn.knownspace> <5089A6DB.9070904@brakiri.com> <5089DF27.9020803@gmail.com> <20121025213018.2bfa5068@narn.knownspace> <5089F799.9030507@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> It was working without DRM "out-of-the-box". Of course I've made a mess > trying different versions of both Xorg and the radeon driver. I'm in the > process of getting back to the working config so I can be sure any test > changes work/don't work. > > OpenBSD's mpi@ apparently did a lot recently over there getting DRM to > work on the G4 mini. We already had about half of the commits I see at > freshbsd, in one way or another...Our rmb/wmb() I think has had PPC > barriers since earlier this year? He did #define __BIG_ENDIAN, which > apparently was a big deal for the drm code (it's ifdef'd in a couple > places), not sure if we are already doing that. > If someone has a G4 radeon mini they could test to see if drm works for > them or not, to rule out AGP issues (I guess they are PCI?). > > I'm not sure how the OpenBSD attachment process works vs ours, some of > the other commits of note were related to passing the BAR and memory > regions from the vgapci to drm. When I kldload drm after compiling it, > it doesn't do anything...but if I kldload radeon.ko, it recognizes agp > memory and being related to vgapci at the correct pci address...I'm not > sure if we "are there" or not. I also didn't have DRM on OpenBSD either. > > I think if radeon had drm on *any* big-endian platform it should rule > out endian issues in drm or radeon. Not sure if this is the case, I > guess macppc would be the most likely. > > Matt So I removed WITH_NEW_XORG, deinstalled a ton of ports, and reinstalled Xorg. I rebuild drm with __BIG_ENDIAN defined (not sure if this matters). I previously put a lot of WERROR= and NO_WERROR= into various drm makefiles to get gcc to shut up about unused return values. X -configure worked, and the xorg log indicates the drm device was successfully opened and I have drm on PPC. mesa-demos is marked broken for PPC, haven't tried glxinfo or glxgears yet. The good news is it works! The bad news: -Cannot switch back to syscons, screen gets corrupted then the system hard locks -WITH_NEW_XORG breaks it somehow Thanks to mpi@openbsd.org, Justin & Nathan! Matt
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?508A17C9.4030007>