drm/i915: Rename i915_gem_timelines_mark_idle

The kerneldoc markup for i915_gem_timelines_mark_idle() was incorrect,
so take the opportunity to also convert it from the "mark_idle" to "park"
naming scheme.

drivers/gpu/drm/i915/i915_gem_timeline.c:120: warning: No description found for parameter 'i915'

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171127123054.20966-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

drivers/gpu/drm/i915/i915_gem.c

@@ -3371,7 +3371,8 @@ i915_gem_idle_work_handler(struct work_struct *work)
 	synchronize_irq(dev_priv->drm.irq);
 
 	intel_engines_park(dev_priv);
-	i915_gem_timelines_mark_idle(dev_priv);
+	i915_gem_timelines_park(dev_priv);
+
 	i915_pmu_gt_parked(dev_priv);
 
 	GEM_BUG_ON(!dev_priv->gt.awake);

drivers/gpu/drm/i915/i915_gem_timeline.c

@@ -107,8 +107,8 @@ int i915_gem_timeline_init__global(struct drm_i915_private *i915)
 }
 
 /**
- * i915_gem_timelines_mark_idle -- called when the driver idles
- * @i915 - the drm_i915_private device
+ * i915_gem_timelines_park - called when the driver idles
+ * @i915: the drm_i915_private device
  *
  * When the driver is completely idle, we know that all of our sync points
  * have been signaled and our tracking is then entirely redundant. Any request
@@ -116,7 +116,7 @@ int i915_gem_timeline_init__global(struct drm_i915_private *i915)
  * the fence is signaled and therefore we will not even look them up in the
  * sync point map.
  */
-void i915_gem_timelines_mark_idle(struct drm_i915_private *i915)
+void i915_gem_timelines_park(struct drm_i915_private *i915)
 {
 	struct i915_gem_timeline *timeline;
 	int i;

drivers/gpu/drm/i915/i915_gem_timeline.h

@@ -93,7 +93,7 @@ int i915_gem_timeline_init(struct drm_i915_private *i915,
 			   struct i915_gem_timeline *tl,
 			   const char *name);
 int i915_gem_timeline_init__global(struct drm_i915_private *i915);
-void i915_gem_timelines_mark_idle(struct drm_i915_private *i915);
+void i915_gem_timelines_park(struct drm_i915_private *i915);
 void i915_gem_timeline_fini(struct i915_gem_timeline *tl);
 
 static inline int __intel_timeline_sync_set(struct intel_timeline *tl,