On Wed, 2012-02-15 at 03:23 +0100, acrux wrote: > On Sun, 12 Feb 2012 11:00:43 +0100 > Michel Dänzer <michel@xxxxxxxxxxx> wrote: > > > On Sam, 2012-02-11 at 21:00 +0100, acrux wrote: > > > > > > Just a curiosity, i've only two powerpc machines[1] equipped with PCIE > > > videocards and both them are not able to boot with radeonkms. > > > Modern PCI-E videocards are not recognized by the old linux framebuffer > > > subsystem and they solely can be managed by the new KMS frame buffer > > > that doesn't work properly on Power Architecture. > > > > That's too broad a statement, it works fine on other PowerPC machines > > (PowerMacs, some embedded boards). > > > > hi Michel, > thanks a lot for your help, i really appreciate it. > > If you say they were tested on real Power Architecture boards with PCIE > videocards thus it is reassuring... and i'm happy that you understand > my previus assertion wasn't affected by malevolence or sarcasm. Indeed > i'm also a bit troubled 'n frustrated thinking that next release of > mesa 'll do extend use of llvm (that doesn't work properly on linuxppc > and totally untested on linuxppc64) > > Btw, to sum up the list of Power Architecture machines with PCIE that > aim to be a desktop/workstation: Apple iMac G5 (iSight), Apple PowerMac > Quad G5, YDL Powerstation 2x970MP and Acube Sam460ex . And the last > two, on present evidence (my attempts), aren't able to boot up if > bootkernel has kms enabled. Which radeon card, kernel log please ? I've successfully booted various reasonably modern radeons on these. I've also used gnome3 with GL acceleration etc... on some of these. Granted that was a few month ago so it's possible that something regressed. > Furthermore the first tree ones can > fallback to the legacy OpenFirmware framebuffer and safely get a > console. > > > It looks like there's a problem with accessing the PCIe device memory, > > and at this point it's not even 100% clear that this is due to a problem > > in the driver, as opposed to e.g. in the platform code. > > > > it could be the right problem and i've CC BenH that has a better global > perspective. Can you give me more data about the problem please ? It could be a recent regression or some setup problem. Also I've noticed on the PowerStation some issues where heavy DMA use by a video card will eventually lock up the system. From what I can tell this is an issue with the northbridge, though a Quad G5 with the same bridge (tho not quite the same revision) doesn't show the problem. Could be a configuration issue. Cheers, Ben. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
