[Intel-gfx] [RFC 10/14] drm/i915/pxp: Enable PXP power management

[Chris Wilson]

Quoting Chris Wilson (2021-02-06 13:06:05)
> Quoting Daniele Ceraolo Spurio (2021-02-06 02:09:21)
> > +       if (!ret) {
> > +               ret = wait_for(!pxp->termination_in_progress, 10);
> 
> This only works by chance. The compiler doesn't even have to reload the
> variable. See struct completion.

It appears we already have a ready made one with the termination
i915_request. But that will require RCU pointer management...
-Chris