1 files changed, 75 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_overlay.h b/drivers/gpu/drm/i915/display/intel_overlay.h
new file mode 100644
index 000000000000..d259e4c74b03
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_overlay.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_OVERLAY_H__
+#define __INTEL_OVERLAY_H__
+
+#include <linux/types.h>
+
+struct drm_device;
+struct drm_file;
+struct drm_printer;
+struct intel_display;
+struct intel_overlay;
+struct intel_overlay_snapshot;
+
+#ifdef I915
+void intel_overlay_setup(struct intel_display *display);
+bool intel_overlay_available(struct intel_display *display);
+void intel_overlay_cleanup(struct intel_display *display);
+int intel_overlay_switch_off(struct intel_overlay *overlay);
+int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
+				  struct drm_file *file_priv);
+int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
+			      struct drm_file *file_priv);
+void intel_overlay_reset(struct intel_display *display);
+#else
+static inline void intel_overlay_setup(struct intel_display *display)
+{
+}
+static inline bool intel_overlay_available(struct intel_display *display)
+{
+	return false;
+}
+static inline void intel_overlay_cleanup(struct intel_display *display)
+{
+}
+static inline int intel_overlay_switch_off(struct intel_overlay *overlay)
+{
+	return 0;
+}
+static inline int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
+						struct drm_file *file_priv)
+{
+	return 0;
+}
+static inline int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
+					    struct drm_file *file_priv)
+{
+	return 0;
+}
+static inline void intel_overlay_reset(struct intel_display *display)
+{
+}
+#endif
+
+#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) && defined(I915)
+struct intel_overlay_snapshot *
+intel_overlay_snapshot_capture(struct intel_display *display);
+void intel_overlay_snapshot_print(const struct intel_overlay_snapshot *error,
+				  struct drm_printer *p);
+#else
+static inline struct intel_overlay_snapshot *
+intel_overlay_snapshot_capture(struct intel_display *display)
+{
+	return NULL;
+}
+static inline void intel_overlay_snapshot_print(const struct intel_overlay_snapshot *error,
+						struct drm_printer *p)
+{
+}
+#endif
+
+#endif /* __INTEL_OVERLAY_H__ */