Re: [PATCH 2/2] drm/i915: Add debugfs interface for planes

[Ben Widawsky <ben@bwidawsk.net>]

On Thu, Aug 22, 2013 at 03:21:09AM +0100, Chris Wilson wrote:
> On Wed, Aug 21, 2013 at 07:16:53PM -0700, Ben Widawsky wrote:
> > Sent the unfinished commit by accident
> > On Wed, Aug 21, 2013 at 08:15:53PM -0700, Ben Widawsky wrote:
> > > This interface can enhanced over time to get more per plane information.
> > > I've just flip counts for now. What I'd like to do with flip counts is
> > > integrate them with existing flip tests. It serves a similar, but more
> > > course purpose to some of the CRC work being done.
> >   ^^
> >  coarse.
> > 
> > "It can be used to determine if something is being flipped when we
> > expect it to be flipped. The immediate issue I want to look into is I've
> > seen some funny behavior where we're getting two flips per flip queued."
> 
> Cursed email - I only have your reply. On the machines you are interested
> in, the CRTCs are assigned to fixed planes.
> -Chris
> 

It's not just you, mailman is acting weird for me also.

In any case, can you give me another hint on how to go from crtc_id to
plane?

-- 
Ben Widawsky, Intel Open Source Technology Center