[Intel-gfx] [PATCH 1/7] drm/i915: Read guaranteed freq for valleyview

[Daniel Vetter]

On Fri, Jul 11, 2014 at 05:42:48PM +0300, Mika Kuoppala wrote:
> deepak.s at linux.intel.com writes:
> 
> > From: Deepak S <deepak.s at linux.intel.com>
> >
> > Reading RP1 for valleyview to help us enable "pm_rps" i-g-t testcase
> > execution.
> >
> > Signed-off-by: Deepak S <deepak.s at linux.intel.com>
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>
> 
> > ---
> >  drivers/gpu/drm/i915/intel_pm.c | 16 ++++++++++++++++
> >  1 file changed, 16 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> > index d1af641..b8e7afc 100644
> > --- a/drivers/gpu/drm/i915/intel_pm.c
> > +++ b/drivers/gpu/drm/i915/intel_pm.c
> > @@ -3816,6 +3816,17 @@ int cherryview_rps_min_freq(struct drm_i915_private *dev_priv)
> >  	return rpn;
> >  }
> >  
> > +int valleyview_rps_guar_freq(struct drm_i915_private *dev_priv)

Missing static here. Fixed and queued for -next, thanks for the patch.
-Daniel
> > +{
> > +	u32 val, rp1;
> > +
> > +	val = vlv_nc_read(dev_priv, IOSF_NC_FB_GFX_FREQ_FUSE);
> > +
> > +	rp1 = (val & FB_GFX_FGUARANTEED_FREQ_FUSE_MASK) >> FB_GFX_FGUARANTEED_FREQ_FUSE_SHIFT;
> > +
> > +	return rp1;
> > +}
> > +
> >  int valleyview_rps_max_freq(struct drm_i915_private *dev_priv)
> >  {
> >  	u32 val, rp0;
> > @@ -3958,6 +3969,11 @@ static void valleyview_init_gt_powersave(struct drm_device *dev)
> >  			 vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq),
> >  			 dev_priv->rps.efficient_freq);
> >  
> > +	dev_priv->rps.rp1_freq = valleyview_rps_guar_freq(dev_priv);
> > +	DRM_DEBUG_DRIVER("RP1(Guar Freq) GPU freq: %d MHz (%u)\n",
> > +			 vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq),
> > +			 dev_priv->rps.rp1_freq);
> > +
> >  	dev_priv->rps.min_freq = valleyview_rps_min_freq(dev_priv);
> >  	DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n",
> >  			 vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq),
> > -- 
> > 1.9.1
> >
> > _______________________________________________
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> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
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-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch