1 files changed, 45 insertions, 6 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.h b/drivers/gpu/drm/i915/gt/intel_engine_pm.h
index a11c893f64c6..e52c2b0cb245 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_pm.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.h
@@ -7,21 +7,60 @@
 #ifndef INTEL_ENGINE_PM_H
 #define INTEL_ENGINE_PM_H
 
+#include "i915_request.h"
 #include "intel_engine_types.h"
 #include "intel_wakeref.h"
 
-struct drm_i915_private;
+static inline bool
+intel_engine_pm_is_awake(const struct intel_engine_cs *engine)
+{
+	return intel_wakeref_is_active(&engine->wakeref);
+}
 
-void intel_engine_pm_get(struct intel_engine_cs *engine);
-void intel_engine_pm_put(struct intel_engine_cs *engine);
+static inline void intel_engine_pm_get(struct intel_engine_cs *engine)
+{
+	intel_wakeref_get(&engine->wakeref);
+}
 
-static inline bool
-intel_engine_pm_get_if_awake(struct intel_engine_cs *engine)
+static inline bool intel_engine_pm_get_if_awake(struct intel_engine_cs *engine)
 {
 	return intel_wakeref_get_if_active(&engine->wakeref);
 }
 
-void intel_engine_park(struct intel_engine_cs *engine);
+static inline void intel_engine_pm_put(struct intel_engine_cs *engine)
+{
+	intel_wakeref_put(&engine->wakeref);
+}
+
+static inline void intel_engine_pm_put_async(struct intel_engine_cs *engine)
+{
+	intel_wakeref_put_async(&engine->wakeref);
+}
+
+static inline void intel_engine_pm_flush(struct intel_engine_cs *engine)
+{
+	intel_wakeref_unlock_wait(&engine->wakeref);
+}
+
+static inline struct i915_request *
+intel_engine_create_kernel_request(struct intel_engine_cs *engine)
+{
+	struct i915_request *rq;
+
+	/*
+	 * The engine->kernel_context is special as it is used inside
+	 * the engine-pm barrier (see __engine_park()), circumventing
+	 * the usual mutexes and relying on the engine-pm barrier
+	 * instead. So whenever we use the engine->kernel_context
+	 * outside of the barrier, we must manually handle the
+	 * engine wakeref to serialise with the use inside.
+	 */
+	intel_engine_pm_get(engine);
+	rq = i915_request_create(engine->kernel_context);
+	intel_engine_pm_put(engine);
+
+	return rq;
+}
 
 void intel_engine_init__pm(struct intel_engine_cs *engine);