[Intel-gfx] [PATCH v6 1/2] drm/i915/gen9: Fix PCODE polling during CDCLK change notification

[Chris Wilson]

On Thu, Dec 08, 2016 at 04:18:50PM +0200, Imre Deak wrote:
> Yep. Btw, I also pondered if we could just make this part of
> wait_for(), but not sure if we want the corresponding code increase
> (and for -stable we'd want a minimal diff). It's not required in other
> cases, although it could speed up the wait in some cases. AFAIR Ville
> did some measurements on this.

The majority use intel_wait_for_register() which includes the spin then
sleep (i.e. a double wait_for()) as suggested by Ville.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre