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drm/i915: Don't cancel DRRS worker synchronously for flush/invalidate 

It's not needed since the worker rechecks that it didn't race. We only
need to cancel synchronously after disabling drrs to make sure the
worker really is gone (e.g. for driver unload). But for normal
operation the stall is just wasted time.

Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ramalingam C <ramalingam.c@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Vandana Kannan <vandana.kannan@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Daniel Vetter 2015-04-09 16:44:16 +02:00 committed by Jani Nikula
parent 9da7d69357
commit 88f933a8b0
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/intel_dp.c
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@ -5181,7 +5181,7 @@ void intel_edp_drrs_invalidate(struct drm_device *dev,
if (dev_priv->drrs.type == DRRS_NOT_SUPPORTED)
return;
cancel_delayed_work_sync(&dev_priv->drrs.work);
cancel_delayed_work(&dev_priv->drrs.work);
mutex_lock(&dev_priv->drrs.mutex);
if (!dev_priv->drrs.dp) {
@ -5225,7 +5225,7 @@ void intel_edp_drrs_flush(struct drm_device *dev,
if (dev_priv->drrs.type == DRRS_NOT_SUPPORTED)
return;
cancel_delayed_work_sync(&dev_priv->drrs.work);
cancel_delayed_work(&dev_priv->drrs.work);
mutex_lock(&dev_priv->drrs.mutex);
if (!dev_priv->drrs.dp) {