drm/i915: Rename intel_wakeref_[is]_active

Our general rule is to use is/has as the verb for boolean functions,
rename intel_wakeref_active to intel_wakeref_is_active so the question
being asked is clear.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190625130128.11009-6-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/gem/i915_gem_pm.c

@@ -54,7 +54,8 @@ static void idle_work_handler(struct work_struct *work)
 	mutex_lock(&i915->drm.struct_mutex);
 
 	intel_wakeref_lock(&i915->gt.wakeref);
-	park = !intel_wakeref_active(&i915->gt.wakeref) && !work_pending(work);
+	park = (!intel_wakeref_is_active(&i915->gt.wakeref) &&
+		!work_pending(work));
 	intel_wakeref_unlock(&i915->gt.wakeref);
 	if (park)
 		i915_gem_park(i915);

drivers/gpu/drm/i915/gt/intel_engine_cs.c

@@ -1155,7 +1155,7 @@ bool intel_engine_is_idle(struct intel_engine_cs *engine)
 	if (i915_reset_failed(engine->i915))
 		return true;
 
-	if (!intel_wakeref_active(&engine->wakeref))
+	if (!intel_engine_pm_is_awake(engine))
 		return true;
 
 	/* Waiting to drain ELSP? */

drivers/gpu/drm/i915/gt/intel_engine_pm.h

@@ -7,12 +7,21 @@
 #ifndef INTEL_ENGINE_PM_H
 #define INTEL_ENGINE_PM_H
 
+#include "intel_engine_types.h"
+#include "intel_wakeref.h"
+
 struct drm_i915_private;
 struct intel_engine_cs;
 
 void intel_engine_pm_get(struct intel_engine_cs *engine);
 void intel_engine_pm_put(struct intel_engine_cs *engine);
 
+static inline bool
+intel_engine_pm_is_awake(const struct intel_engine_cs *engine)
+{
+	return intel_wakeref_is_active(&engine->wakeref);
+}
+
 void intel_engine_park(struct intel_engine_cs *engine);
 
 void intel_engine_init__pm(struct intel_engine_cs *engine);

drivers/gpu/drm/i915/gt/intel_lrc.c

@@ -684,7 +684,7 @@ static void execlists_submit_ports(struct intel_engine_cs *engine)
 	 * that all ELSP are drained i.e. we have processed the CSB,
 	 * before allowing ourselves to idle and calling intel_runtime_pm_put().
 	 */
-	GEM_BUG_ON(!intel_wakeref_active(&engine->wakeref));
+	GEM_BUG_ON(!intel_engine_pm_is_awake(engine));
 
 	/*
 	 * ELSQ note: the submit queue is not cleared after being submitted

drivers/gpu/drm/i915/gt/intel_reset.c

@@ -1072,7 +1072,7 @@ int i915_reset_engine(struct intel_engine_cs *engine, const char *msg)
 	GEM_TRACE("%s flags=%lx\n", engine->name, error->flags);
 	GEM_BUG_ON(!test_bit(I915_RESET_ENGINE + engine->id, &error->flags));
 
-	if (!intel_wakeref_active(&engine->wakeref))
+	if (!intel_engine_pm_is_awake(engine))
 		return 0;
 
 	reset_prepare_engine(engine);

drivers/gpu/drm/i915/intel_wakeref.h

@@ -128,13 +128,13 @@ intel_wakeref_unlock(struct intel_wakeref *wf)
 }
 
 /**
- * intel_wakeref_active: Query whether the wakeref is currently held
+ * intel_wakeref_is_active: Query whether the wakeref is currently held
  * @wf: the wakeref
  *
  * Returns: true if the wakeref is currently held.
  */
 static inline bool
-intel_wakeref_active(struct intel_wakeref *wf)
+intel_wakeref_is_active(const struct intel_wakeref *wf)
 {
 	return READ_ONCE(wf->wakeref);
 }