Merge branch 'master' of git://git.infradead.org/users/linville/wireless-next into...

[pandora-kernel.git] / drivers / gpu / drm / i915 / i915_irq.c

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 3b03f85..9cbb0cd 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -306,12 +306,15 @@ static void i915_hotplug_work_func(struct work_struct *work)
        struct drm_mode_config *mode_config = &dev->mode_config;
        struct intel_encoder *encoder;
 
+       mutex_lock(&mode_config->mutex);
        DRM_DEBUG_KMS("running encoder hotplug functions\n");
 
        list_for_each_entry(encoder, &mode_config->encoder_list, base.head)
                if (encoder->hot_plug)
                        encoder->hot_plug(encoder);
 
+       mutex_unlock(&mode_config->mutex);
+
        /* Just fire off a uevent and let userspace tell us what to do */
        drm_helper_hpd_irq_event(dev);
 }
@@ -361,10 +364,12 @@ static void notify_ring(struct drm_device *dev,
 
        ring->irq_seqno = seqno;
        wake_up_all(&ring->irq_queue);
-
-       dev_priv->hangcheck_count = 0;
-       mod_timer(&dev_priv->hangcheck_timer,
-                 jiffies + msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD));
+       if (i915_enable_hangcheck) {
+               dev_priv->hangcheck_count = 0;
+               mod_timer(&dev_priv->hangcheck_timer,
+                         jiffies +
+                         msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD));
+       }
 }
 
 static void gen6_pm_rps_work(struct work_struct *work)
@@ -1664,6 +1669,9 @@ void i915_hangcheck_elapsed(unsigned long data)
        uint32_t acthd, instdone, instdone1;
        bool err = false;
 
+       if (!i915_enable_hangcheck)
+               return;
+
        /* If all work is done then ACTHD clearly hasn't advanced. */
        if (i915_hangcheck_ring_idle(&dev_priv->ring[RCS], &err) &&
            i915_hangcheck_ring_idle(&dev_priv->ring[VCS], &err) &&
@@ -2050,8 +2058,10 @@ void intel_irq_init(struct drm_device *dev)
                dev->driver->get_vblank_counter = gm45_get_vblank_counter;
        }
 
-
-       dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp;
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp;
+       else
+               dev->driver->get_vblank_timestamp = NULL;
        dev->driver->get_scanout_position = i915_get_crtc_scanoutpos;
 
        if (IS_IVYBRIDGE(dev)) {