[Intel-gfx] [PATCH] drm/i915: Add Baytrail PSR Support.

[Chris Wilson]

On Wed, Dec 18, 2013 at 08:27:32AM -0200, Rodrigo Vivi wrote:
> On Wed, Dec 18, 2013 at 8:03 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > On Tue, Dec 17, 2013 at 06:31:03PM -0200, Rodrigo Vivi wrote:
> >> This patch adds PSR Support to Baytrail.
> >>
> >> Baytrail cannot easily detect screen updates and force PSR exit.
> >> So we inactivate it on busy_ioctl and update to get it back
> >> on next display mark_idle.
> >
> > That wasn't the plan, and certainly not every single busy ioctl.
> 
> what do you suggest?

We proposed a mechansim for frontbuffer write detection.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre