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drm/i915/chv: Implement WaDisableSamplerPowerBypass for CHV 

Cherryview also needs this WA.

Signed-off-by: Rafael Barbalho <rafael.barbalho@intel.com>
[vsyrjala: Looks like it's for pre-prodution hw only]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Rafael Barbalho 2014-04-09 13:28:40 +03:00 committed by Daniel Vetter
parent b3f797ac49
commit e0d34ce7d0
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/intel_pm.c
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@ -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)