Date: Fri, 26 Oct 2012 20:51:38 +0200 From: Andreas Tobler <andreast-list@fgznet.ch> To: Nathan Whitehorn <nwhitehorn@freebsd.org>, matt <sendtomatt@gmail.com> Cc: freebsd-x11@freebsd.org, Albert Vest <alvest@brakiri.com>, Justin Hibbits <chmeeedalf@gmail.com>, freebsd-ppc@freebsd.org Subject: Re: Does drm/dri currently work on PPC? (SUCCESS!) Message-ID: <508ADBBA.1060201@fgznet.ch> In-Reply-To: <508A9EBD.3080107@freebsd.org> 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> <508A17C9.4030007@gmail.com> <508A9EBD.3080107@freebsd.org>
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On 26.10.12 16:31, Nathan Whitehorn wrote: > On 10/25/12 23:55, matt wrote: >>> 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 >> _______________________________________________ >> freebsd-ppc@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-ppc >> To unsubscribe, send any mail to "freebsd-ppc-unsubscribe@freebsd.org" > > Great to hear! I checked in some code to define __BIG_ENDIAN if needed > in -CURRENT's drm (Linux uses a different number of underscores than we > do for perverse reasons). Thank you very much all! I can confirm it works here too (G5 32-bit): [helium:~] andreast% dmesg |grep drm drm0: <ATI Radeon AR 9600 XT> on vgapci0 info: [drm] Initialized radeon 1.31.0 20080613 info: [drm] Setting GART location based on new memory map info: [drm] Loading R300 Microcode info: [drm] Num pipes: 1 info: [drm] writeback test succeeded in 1 usecs and glxgears gives around 1250FPS vs. 52FPS w/o dri. Andreas
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