[PATCH 01/18] drm/etnaviv: reset GPU when coming back from suspend

Russell King - ARM Linux linux at armlinux.org.uk
Mon Aug 22 11:20:08 UTC 2016


On Mon, Aug 22, 2016 at 01:00:55PM +0200, Lucas Stach wrote:
> The GPU may still keep its state when in suspend, which breaks the
> assumption that the hardware is in a clean state before the init
> routine runs. Make sure to reset the GPU when coming back from
> suspend, so this assumption is validated.

This doesn't mean very much to me - could you explain exactly what the
problem you're trying to solve here is?

This looks like it makes resuming the GPU quite expensive.

-- 
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