drm/i915: Reset sched_engine.no_priolist immediately after dequeue

[linux-2.6-microblaze.git] / drivers / gpu / drm / i915 / i915_scheduler.h

diff --git a/drivers/gpu/drm/i915/i915_scheduler.h b/drivers/gpu/drm/i915/i915_scheduler.h
index 858a093..713c38c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_scheduler.h
+++ b/drivers/gpu/drm/i915/i915_scheduler.h
@@ -48,6 +48,37 @@ static inline void i915_priolist_free(struct i915_priolist *p)
                __i915_priolist_free(p);
 }
 
+struct i915_sched_engine *
+i915_sched_engine_create(unsigned int subclass);
+
+void i915_sched_engine_free(struct kref *kref);
+
+static inline struct i915_sched_engine *
+i915_sched_engine_get(struct i915_sched_engine *sched_engine)
+{
+       kref_get(&sched_engine->ref);
+       return sched_engine;
+}
+
+static inline void
+i915_sched_engine_put(struct i915_sched_engine *sched_engine)
+{
+       kref_put(&sched_engine->ref, i915_sched_engine_free);
+}
+
+static inline bool
+i915_sched_engine_is_empty(struct i915_sched_engine *sched_engine)
+{
+       return RB_EMPTY_ROOT(&sched_engine->queue.rb_root);
+}
+
+static inline void
+i915_sched_engine_reset_on_empty(struct i915_sched_engine *sched_engine)
+{
+       if (i915_sched_engine_is_empty(sched_engine))
+               sched_engine->no_priolist = false;
+}
+
 void i915_request_show_with_schedule(struct drm_printer *m,
                                     const struct i915_request *rq,
                                     const char *prefix,