Comment # 10
on bug 95017
from Rui Salvaterra
(In reply to Michel Dänzer from comment #4) > (In reply to Mathieu Malaterre from comment #3) > > If AGP is simply not supported on PowerPC, it would be nice to have a > > clearer message (or at least a warning). > > It is supported, it's just unstable on many PowerMacs. > > A patch disabling AGP by default on PowerMacs or even PPC in general > probably wouldn't be rejected. :) Hi, Michel I don't understand. I know about the coherency issues on some UniNorth bridges (DMA writes through the GART going directly to RAM, IIRC), but how did OS X cope with them? Did it also disable AGP transfers? If not, what can be done to fix this bug for real, instead of working around it? (I have a very vague memory that these hangs didn't happen before KMS, but I may be completely wrong.) Also, on a somewhat related note, there are still issues with the Radeon (R600, not SI) DRM on big endian, as for https://bugs.freedesktop.org/show_bug.cgi?id=95015. Thanks, Rui
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