drm/i915: Drop local struct_mutex around intel_init_emon[ilk]

Access to intel_init_emon() is strictly ordered by gt_powersave, using
struct_mutex around it is overkill (and will conflict with the caller
holding struct_mutex themselves).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160909131201.16673-8-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 4f833a07708940ebffcd41a24f8c1cd195faf942..6af438ffef9a7a9079d03a2e8e374f51bd2baa06 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6773,9 +6773,7 @@ void intel_autoenable_gt_powersave(struct drm_i915_private *dev_priv)
 
        if (IS_IRONLAKE_M(dev_priv)) {
                ironlake_enable_drps(dev_priv);
-               mutex_lock(&dev_priv->drm.struct_mutex);
                intel_init_emon(dev_priv);
-               mutex_unlock(&dev_priv->drm.struct_mutex);
        } else if (INTEL_INFO(dev_priv)->gen >= 6) {
                /*
                 * PCU communication is slow and this doesn't need to be