On 5/11/20 10:05 PM, Alex Deucher wrote:
For Nouveau I'm not 100% sure, but from the code it of hand looks like we can do it similar to Radeon.
Please comment what you think about this.
I would be against such a move as AGP graphics is still used by people running the powerpc and ppc64 Debian ports on their vintage hardware [1].
I have also CC'ed the debian-powerpc mailing list so that other users can voice their opinion.
Note there is no loss of functionality here, at least on radeon hardware. It just comes down to which MMU gets used for access to system memory, the AGP MMU on the chipset or the MMU built into the GPU. On powerpc hardware, AGP has been particularly unstable, and IIRC, AGP has been disabled by default on radeon on powerpc for a while.
Do you have a code reference at hand for this bit of information (AGP being disabled on Macs)?
Thanks, Adrian