Supported graphics cards for Linux PPC
Posted: Wed May 03, 2023 3:31 pm
Andreas_Wolf wrote: > Working was only radeon (=r100) upto r600 (i.e. Northern Islands).
Yes, this hasn't changed. I think I may have been somewhat unclear. I'll try again:
Your statement that PPC BE Linux supports up to Northern Islands (= RV9xx) is correct. This is because it supports up to TeraScale 3 GPU architecture. What's a bit misleading though is to correspond this with the HD6xxx cards when ⅓ of HD7xxx cards are also supported, and even some of HD8xxx and R5 cards, because they use TeraScale GPUs.
The first sentence in my previous comment was more of a general statement that there is no general correspondence between card family (HDXxxx, Rx etc.), GPU family ("... Islands", R(V)Xxx) and GPU architecture (TeraScale 1-3, GCN1-5 etc.), of which only the last really determines (non-)support. This is illustrated by the fact that MorphOS supports not all of Northern Islands GPUs (namely only those of TeraScale 2 architecture, but not those of TeraScale 3).
> Next gfx generations needs radeonsi 3D driver, which not worked on Big endian.
Yes, this is because those GPU families starting with Southern Islands (= "R1000" internal name) use GCN architecture.
> Does it mean, that radeonsi now works with Big endian? Or are
> there some special BE driver? Pls, do you have link for some info?
No, no and no