[Bug 107518] polaris powerplay init fails: There must be 1 or more PCIE levels defined in PPTable

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107518

--- Comment #4 from Shawn Anastasio <shawnanastasio at yahoo.com> ---
(In reply to Alex Deucher from comment #3)
> (In reply to Shawn Anastasio from comment #2)
> > Upon further testing, the issue seems to go away when the firmware is
> > removed from petitboot, preventing it from initializing the card before the
> > host OS. This indicates that it may have something to do with the GPU being
> > initialized twice.
> 
> The hw requires a special reset before it can be initialized again.  This is
> handled in driver for things like hibernate (S4) support.

Does the driver do the reset on a kexec reboot? If so, it seems insufficient to
mitigate this issue.

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