Re: [PATCH] drm/i915: Fix correct FIFO size for Baytrail

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On Wed, 2014-02-12 at 19:24 +0200, Imre Deak wrote:
> On Fri, 2014-02-07 at 19:58 +0100, Daniel Vetter wrote:
> > On Fri, Feb 07, 2014 at 05:58:16PM +0200, Ville Syrjälä wrote:
> > > On Fri, Feb 07, 2014 at 08:43:12PM +0530, Vijay Purushothaman wrote:
> > > > B-spec says the FIFO total size is 512. So fix this to 512.
> > > > 
> > > > Signed-off-by: Vijay Purushothaman <vijay.a.purushothaman@xxxxxxxxx>
> > > > ---
> > > >  drivers/gpu/drm/i915/i915_reg.h |    2 +-
> > > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > > 
> > > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> > > > index cc3ea04..fb73031 100644
> > > > --- a/drivers/gpu/drm/i915/i915_reg.h
> > > > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > > > @@ -3395,7 +3395,7 @@
> > > >  #define I915_FIFO_LINE_SIZE	64
> > > >  #define I830_FIFO_LINE_SIZE	32
> > > >  
> > > > -#define VALLEYVIEW_FIFO_SIZE	255
> > > > +#define VALLEYVIEW_FIFO_SIZE	511
> > > >  #define G4X_FIFO_SIZE		127
> > > >  #define I965_FIFO_SIZE		512
> > > >  #define I945_FIFO_SIZE		127
> > > 
> > > Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > 
> > Queued for -next, thanks for the patch.
> > -Daniel
> 
> This breaks DP on my BYT, I get bad flicker with it. Reverting only this
> one fixes the issue.

Adding Vijay.

--Imre

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