On Tue, Jun 08, 2021 at 09:17:35PM +0000, Jerome Kasper wrote:
> >On Tue, Jun 08, 2021 at 01:51:21PM +0000, Jerome Kasper wrote:
> >> Hello bugs@
> >>
> >> Since i'm following -current i lately encountered drm issues with my 
> >> graphic
> >> card that doesn't attach anymore while it was working on 6.9-stable.
> >> sysupgrade -s done today and still having the issue.
> >> Non attachement occurs at each reboot leaving graphics to efifb
> >>
> >> Any method to track down faulty code or simple way to bisect the commit
> >> that broke things would be greatly appreciated? Wondering if it didn't
> >> came along with the amdgpu firmware upgrade?
> 
> >Most likely related.  You can find the old firmware at
> >http://firmware.openbsd.org/firmware/6.9/amdgpu-firmware-20201218.tgz
> >to confirm if that is the case.
> 
> i made a wrong guess, the issue happen with both firmwares
> 
> >I would also be interested to know how a kernel with the following
> >diff goes.  The mapping is an optimisation, there is a fallback.
> 
> With your patch the graphic card is recognized and amdgpu get attached
> with both stable and current firmwares. Thanks for the quick fix, i will 
> continue to run with that patch and report if any problem.
> until now everything goes fine :)

Thanks for the report.  Fix committed to -current.

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