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Commit 50ed5fbd authored by Ben Widawsky's avatar Ben Widawsky Committed by Daniel Vetter
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drm/i915/bdw: Implement WaSwitchSolVfFArbitrationPriority 



GEN8 also needs this workaround.

Signed-off-by: default avatarBen Widawsky <ben@bwidawsk.net>
[danvet: Add a generic comment that we need to recheck all these w/a.]
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 6bbfa1c5

drivers/gpu/drm/i915/intel_pm.c

+6 −0
Original line number Diff line number Diff line
@@ -5188,6 +5188,12 @@ static void gen8_init_clock_gating(struct drm_device *dev) 
	I915_WRITE(WM3_LP_ILK, 0);

	I915_WRITE(WM2_LP_ILK, 0);

	I915_WRITE(WM1_LP_ILK, 0);



	/* FIXME(BDW): Check all the w/a, some might only apply to

	 * pre-production hw. */



	/* WaSwitchSolVfFArbitrationPriority */

	I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL);

}



static void haswell_init_clock_gating(struct drm_device *dev)