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Commit ef59318c authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
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drm/i915: WaDisableVDSUnitClockGating isn't applicable to SNB 



Can't find any mention of WaDisableVDSUnitClockGating ever being
relevant for SNB. Remove it.

Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 031994ee

drivers/gpu/drm/i915/intel_pm.c

+2 −4
Original line number Diff line number Diff line
@@ -4608,12 +4608,10 @@ static void gen6_init_clock_gating(struct drm_device *dev) 
	 * According to the spec, bit 11 (RCCUNIT) must also be set,

	 * but we didn't debug actual testcases to find it out.

	 *

	 * Also apply WaDisableVDSUnitClockGating:snb and

	 * WaDisableRCCUnitClockGating:snb and

	 * WaDisableRCPBUnitClockGating:snb.

	 * WaDisableRCCUnitClockGating:snb

	 * WaDisableRCPBUnitClockGating:snb

	 */

	I915_WRITE(GEN6_UCGCTL2,

		   GEN7_VDSUNIT_CLOCK_GATE_DISABLE |

		   GEN6_RCPBUNIT_CLOCK_GATE_DISABLE |

		   GEN6_RCCUNIT_CLOCK_GATE_DISABLE);