2014-04-09 7:28 GMT-03:00 <ville.syrjala@xxxxxxxxxxxxxxx>: > From: Rafael Barbalho <rafael.barbalho@xxxxxxxxx> > > Cherryview also needs this WA. At least on the chv_rebase tree, this WA is implemented for BDW but it is not documented as pre-prod only, and its name is not there. We should probably add a comment documenting the name and the fact that it is also pre-prod on BDW. > > Signed-off-by: Rafael Barbalho <rafael.barbalho@xxxxxxxxx> > [vsyrjala: Looks like it's for pre-prodution hw only] > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/intel_pm.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 468fe37..60f876c 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -5405,6 +5405,10 @@ static void cherryview_init_clock_gating(struct drm_device *dev) > /* WaDisableSDEUnitClockGating:chv */ > I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) | > GEN8_SDEUNIT_CLOCK_GATE_DISABLE); > + > + /* WaDisableSamplerPowerBypass:chv (pre-production hw) */ > + I915_WRITE(HALF_SLICE_CHICKEN3, > + _MASKED_BIT_ENABLE(GEN8_SAMPLER_POWER_BYPASS_DIS)); I could not find information anywhere if this is the correct implementation. Can you please provide me pointers to the doc you used? The links on Collab seem broken. Thanks, Paulo > } > > static void g4x_init_clock_gating(struct drm_device *dev) > -- > 1.8.3.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Paulo Zanoni _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
