drm/i915/guc: Move enable/disable msg functions to GuC header

While today we are modifying GuC enabled msg mask only in GuC
log, this code should be defined as generic GuC to allow future
code reuse.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180320181419.35576-3-michal.wajdeczko@intel.com

drivers/gpu/drm/i915/intel_guc.h

@@ -155,4 +155,18 @@ static inline int intel_guc_sanitize(struct intel_guc *guc)
 	return 0;
 }
 
+static inline void intel_guc_enable_msg(struct intel_guc *guc, u32 mask)
+{
+	spin_lock_irq(&guc->irq_lock);
+	guc->msg_enabled_mask |= mask;
+	spin_unlock_irq(&guc->irq_lock);
+}
+
+static inline void intel_guc_disable_msg(struct intel_guc *guc, u32 mask)
+{
+	spin_lock_irq(&guc->irq_lock);
+	guc->msg_enabled_mask &= ~mask;
+	spin_unlock_irq(&guc->irq_lock);
+}
+
 #endif

drivers/gpu/drm/i915/intel_guc_log.c

@@ -72,25 +72,23 @@ static int guc_action_control_log(struct intel_guc *guc, bool enable,
 	return intel_guc_send(guc, action, ARRAY_SIZE(action));
 }
 
-static void guc_flush_log_msg_enable(struct intel_guc *guc)
+static inline struct intel_guc *log_to_guc(struct intel_guc_log *log)
 {
-	spin_lock_irq(&guc->irq_lock);
-	guc->msg_enabled_mask |= INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER |
-				 INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED;
-	spin_unlock_irq(&guc->irq_lock);
+	return container_of(log, struct intel_guc, log);
 }
 
-static void guc_flush_log_msg_disable(struct intel_guc *guc)
+static void guc_log_enable_flush_events(struct intel_guc_log *log)
 {
-	spin_lock_irq(&guc->irq_lock);
-	guc->msg_enabled_mask &= ~(INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER |
+	intel_guc_enable_msg(log_to_guc(log),
+			     INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER |
 			     INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED);
-	spin_unlock_irq(&guc->irq_lock);
 }
 
-static inline struct intel_guc *log_to_guc(struct intel_guc_log *log)
+static void guc_log_disable_flush_events(struct intel_guc_log *log)
 {
-	return container_of(log, struct intel_guc, log);
+	intel_guc_disable_msg(log_to_guc(log),
+			      INTEL_GUC_RECV_MSG_FLUSH_LOG_BUFFER |
+			      INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED);
 }
 
 /*
@@ -576,7 +574,7 @@ int intel_guc_log_relay_open(struct intel_guc_log *log)
 
 	mutex_unlock(&log->relay.lock);
 
-	guc_flush_log_msg_enable(log_to_guc(log));
+	guc_log_enable_flush_events(log);
 
 	/*
 	 * When GuC is logging without us relaying to userspace, we're ignoring
@@ -616,7 +614,7 @@ void intel_guc_log_relay_flush(struct intel_guc_log *log)
 
 void intel_guc_log_relay_close(struct intel_guc_log *log)
 {
-	guc_flush_log_msg_disable(log_to_guc(log));
+	guc_log_disable_flush_events(log);
 	flush_work(&log->relay.flush_work);
 
 	mutex_lock(&log->relay.lock);