[BUG 4.17] etnaviv-gpu f1840000.gpu: recover hung GPU!

[Russell King - ARM Linux]

On Tue, Jun 19, 2018 at 02:28:46PM +0200, Lucas Stach wrote:
> Agreed. I'll look into bringing back the process detection for 4.17
> stable.
> 
> I'm still curious why the GC600 on the Dove is that slow. With
> performance like this moving a big(ish) window on the screen must be a
> horrible user experience.

This doesn't seem to be the cause - it seems that there's something
going on with 4.17 that really is causing the Dove GC600 to get stuck.
Reverting all the drivers/gpu/drm/etnaviv changes back to the 4.16
state while keeping everything else the same results in no hangs,
whereas increasing the timeout with 4.17 still results in hangs.

I'll try to find some time to bisect.

-- 
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