drm/i915: initialize gt_lock early with other spin locks

commit 181d1b9e31c668259d3798c521672afb8edd355c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sun Jul 21 13:16:24 2013 +0200

    drm/i915: fix up gt init sequence fallout

moved dev_priv->gt_lock initialization after use. Do the initialization
much earlier with other spin lock initializations.

Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: stable@vger.kernel.org (since the regressing patch is also cc: stable)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

2 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 67ec54f67afe..b1520682cb23 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1498,6 +1498,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         spin_lock_init(&dev_priv->irq_lock);
         spin_lock_init(&dev_priv->gpu_error.lock);
         spin_lock_init(&dev_priv->rps.lock);
+        spin_lock_init(&dev_priv->gt_lock);
         spin_lock_init(&dev_priv->backlight.lock);
         mutex_init(&dev_priv->dpio_lock);
         mutex_init(&dev_priv->rps.hw_lock);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6a347f54d39f..51a2a60f5bfc 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5497,8 +5497,6 @@ void intel_gt_init(struct drm_device *dev)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
 
-        spin_lock_init(&dev_priv->gt_lock);
-
         if (IS_VALLEYVIEW(dev)) {
                 dev_priv->gt.force_wake_get = vlv_force_wake_get;
                 dev_priv->gt.force_wake_put = vlv_force_wake_put;