[Intel-gfx] [PATCH] drm/i915: Always wake the device to flush the GTT

[Chris Wilson]

Quoting Chris Wilson (2017-08-30 13:56:40)
> Quoting Daniel Vetter (2017-08-30 13:23:56)
> > Or just the need to add a pile more tests to pm_rpm?
> 
> No. It's just your regular combinatorial explosion. The approach I would
> take here would be to register a sysenter callback that attempted to do a
> rpm suspend (i.e. so ~every ioctl would start from idle, and controlled
> via the faultinjection framework) and then run the minimal test set that
> exercises all ioctl paths, and then expand to all driver branches.

We also need the corollary that without rpm it works.
-Chris