re: kern/57079: videcards from the radeon oland family have no VCE

[matthew green <mrg%eterna.com.au@localhost>]

> [     3.686110] [drm] radeon: irq initialized.
> [     3.966110] {drm:netbsd:r600_ring_test+0x244} *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)
> [     3.966110] radeon0: autoconfiguration error: error: disabling GPU acceleration
>
> No idea yet about the last error, fix for the first one was fairly easy to find.

the last error is, IME, machine-specific.  there's a class
of radeons that fail on my ryzen 5600G, but not a ryzen
3950X or ryzen 3600.  i've seen the failure with 5450,
6340, and an R240 (just like you :-), but all those cards
work fine in the 3600.  the same physical card, not just
the same model.

eg, PR#56714 has this line in it:

kern error: [drm:([...]radeon_r600_dma.c:274)r600_dma_ring_test] *ERROR* radeon: ring 3 test failed (0xCAFEDEAD)

that i believe is the same error (though ring 0 above is
less common, mostly i see ring 3, but it's the same test
being performed.)

fortunately, the 5600G is fast enough that most of the
time i don't care about the lack of accel... :-)


.mrg.