Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0a089e33 authored by Mika Kuoppala's avatar Mika Kuoppala Committed by Daniel Vetter
Browse files

drm/i915: Do forcewake reset on gen8 



When we get control from BIOS there might be mt forcewake
bits already set. This causes us to do double mt get
without proper clear/ack sequence.

Fix this by clearing mt forcewake register on init,
like we do with older gens.

Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: default avatarBen Widawsky <ben@bwidawsk.net>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent c923facd

drivers/gpu/drm/i915/intel_uncore.c

+5 −5
Original line number Diff line number Diff line
@@ -310,14 +310,14 @@ static void intel_uncore_forcewake_reset(struct drm_device *dev) 
{

	struct drm_i915_private *dev_priv = dev->dev_private;



	if (IS_VALLEYVIEW(dev)) {

	if (IS_VALLEYVIEW(dev))

		vlv_force_wake_reset(dev_priv);

	} else if (INTEL_INFO(dev)->gen >= 6) {

	else if (IS_GEN6(dev) || IS_GEN7(dev))

		__gen6_gt_force_wake_reset(dev_priv);

		if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))



	if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev) || IS_GEN8(dev))

		__gen6_gt_force_wake_mt_reset(dev_priv);

}

}



void intel_uncore_early_sanitize(struct drm_device *dev)

{