[Intel-gfx] [regression] drm/i915: cleanup per-pipe reg usage

[Alexey Fisher]

Am Donnerstag, den 17.02.2011, 10:32 -0800 schrieb Jesse Barnes:
> On Thu, 17 Feb 2011 08:26:20 +0100
> Alexey Fisher <bug-track at fisher-privat.net> wrote:
> 
> > Am Mittwoch, den 16.02.2011, 10:57 -0800 schrieb Jesse Barnes:
> > > On Sat, 12 Feb 2011 22:02:36 +0100
> > > Alexey Fisher <bug-track at fisher-privat.net> wrote:
> > > 
> > > > In attachment are reg_dumps.
> > > > 
> > > > intel_1 - is gdm login screen, every thing is ok
> > > > intel_2 - is after login, noise
> > > > intel_3 - is after mouse pointer was placed to the upper left corner,
> > > > image is ok again.
> > > > 
> > > > Am Samstag, den 12.02.2011, 18:09 +0000 schrieb Chris Wilson:
> > > > > 
> > > > > On Sat, 12 Feb 2011 15:16:16 +0100, Alexey Fisher
> > > > > <bug-track at fisher-privat.net> wrote:
> > > > > > Video is in attachment.
> > > > > > 
> > > > > > If mouse pointer is on the left top corner i get still image .. if
> > > > > not -
> > > > > > noise.
> > > > > 
> > > > > I think intel_reg_dumper before/after will be the best guide as to
> > > > > where
> > > > > the mistake crept in.
> > > > > -Chris
> > > 
> > > Also, seeing the kernel messages from a clean boot after setting
> > > drm.debug=4 would help; they'll tell us what FIFO watermarks we used
> > > and might help me track down the flicker.
> > 
> > the bad files are from version 2.6.38-rc2-00090-g9db4a9c
> > the good are 2.6.38-rc2-00079-g4a1dc3f
> 
> Hm watermarks actually look good, but the cursor b control reg is
> different for some reason.
> 
> Oops, I see a problem.  Does this patch help?

Yes, it is working!

Thank you.