Re: [Intel-gfx] [PATCH v3 5/5] drm/i915/dg2: extend Wa_1409120013 to DG2

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On Wed, Nov 17, 2021 at 08:43:19PM +0200, Ville Syrjälä wrote:
> On Tue, Nov 16, 2021 at 09:48:18AM -0800, Matt Roper wrote:
> > From: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
> > 
> > Extend existing workaround 1409120013 to DG2.
> 
> I don't see this listed for DG2.

This seems to be problem with the DG2 query since for some reason they
marked this workaround as 'driver_change_required' rather than
'driver_permanent_wa' in the database and that prevents it from showing
up in some of the queries properly.  The DG2-specific ID number
to check is 1409222275.


Matt

> 
> > 
> > Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
> > Signed-off-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
> > Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
> > ---
> >  drivers/gpu/drm/i915/intel_pm.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> > index 89dc7f69baf3..e721c421cc58 100644
> > --- a/drivers/gpu/drm/i915/intel_pm.c
> > +++ b/drivers/gpu/drm/i915/intel_pm.c
> > @@ -7444,9 +7444,9 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv)
> >  
> >  static void gen12lp_init_clock_gating(struct drm_i915_private *dev_priv)
> >  {
> > -	/* Wa_1409120013:tgl,rkl,adl-s,dg1 */
> > +	/* Wa_1409120013:tgl,rkl,adl-s,dg1,dg2 */
> >  	if (IS_TIGERLAKE(dev_priv) || IS_ROCKETLAKE(dev_priv) ||
> > -	    IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv))
> > +	    IS_ALDERLAKE_S(dev_priv) || IS_DG1(dev_priv) || IS_DG2(dev_priv))
> >  		intel_uncore_write(&dev_priv->uncore, ILK_DPFC_CHICKEN,
> >  				   DPFC_CHICKEN_COMP_DUMMY_PIXEL);
> >  
> > -- 
> > 2.33.0
> 
> -- 
> Ville Syrjälä
> Intel

-- 
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795



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