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Commit e0d34ce7 authored by Rafael Barbalho's avatar Rafael Barbalho Committed by Daniel Vetter
Browse files

drm/i915/chv: Implement WaDisableSamplerPowerBypass for CHV 



Cherryview also needs this WA.

Signed-off-by: default avatarRafael Barbalho <rafael.barbalho@intel.com>
[vsyrjala: Looks like it's for pre-prodution hw only]
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent b3f797ac

drivers/gpu/drm/i915/intel_pm.c

+4 −0
Original line number Diff line number Diff line
@@ -5401,6 +5401,10 @@ 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));

}



static void g4x_init_clock_gating(struct drm_device *dev)