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Commit 28acf3b2 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
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drm/i915: WaDisableRCCUnitClockGating isn't applicable to IVB 



WaDisableRCCUnitClockGating is only relevant for SNB.

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 ef59318c

drivers/gpu/drm/i915/intel_pm.c

+1 −5
Original line number Diff line number Diff line
@@ -4861,15 +4861,11 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) 
	 * Sanctuary and Tropics, and apparently anything else with

	 * alpha test or pixel discard.

	 *

	 * According to the spec, bit 11 (RCCUNIT) must also be set,

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

	 *

	 * According to the spec, bit 13 (RCZUNIT) must be set on IVB.

	 * This implements the WaDisableRCZUnitClockGating:ivb workaround.

	 */

	I915_WRITE(GEN6_UCGCTL2,

		   GEN6_RCZUNIT_CLOCK_GATE_DISABLE |

		   GEN6_RCCUNIT_CLOCK_GATE_DISABLE);

		   GEN6_RCZUNIT_CLOCK_GATE_DISABLE);



	/* This is required by WaCatErrorRejectionIssue:ivb */

	I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG,