[Intel-gfx] [PATCH 1/1] drm/i915/bxt: Set time interval unit to 0.833us

[Daniel Vetter]

On Tue, Oct 06, 2015 at 09:16:28PM +0300, Imre Deak wrote:
> On pe, 2015-09-18 at 23:39 +0530, Sagar Arun Kamble wrote:
> > From: Akash Goel <akash.goel at intel.com>
> > 
> > Signed-off-by: Ankitprasad Sharma <ankitprasad.r.sharma at intel.com>
> > Signed-off-by: Akash Goel <akash.goel at intel.com>
> > Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
> 
> The comment about units in gen6_set_rps_thresholds() is outdated, so you
> could update that while at it. In any case this looks ok, so:
> Reviewed-by: Imre Deak <imre.deak at intel.com>

In your previous review you noticed that Bspec is still outdated. Has that
been fixed meanwhile?
-Daniel

> 
> > ---
> >  drivers/gpu/drm/i915/i915_reg.h | 5 ++++-
> >  1 file changed, 4 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> > index 67bf205..6b1998c 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -2802,8 +2802,11 @@ enum skl_disp_power_wells {
> >  
> >  #define INTERVAL_1_28_US(us)	(((us) * 100) >> 7)
> >  #define INTERVAL_1_33_US(us)	(((us) * 3)   >> 2)
> > +#define INTERVAL_0_833_US(us)	(((us) * 6) / 5)
> >  #define GT_INTERVAL_FROM_US(dev_priv, us) (IS_GEN9(dev_priv) ? \
> > -				INTERVAL_1_33_US(us) : \
> > +				(IS_BROXTON(dev_priv) ? \
> > +				INTERVAL_0_833_US(us) : \
> > +				INTERVAL_1_33_US(us)) : \
> >  				INTERVAL_1_28_US(us))
> >  
> >  /*
> 
> 
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch