drm: introduce share plane

[firefly-linux-kernel-4.4.55.git] / include / drm / drm_crtc.h

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index d9becbf8295ff0051c6b0c42e5356b7efd5cb3a1..9c37e6bd301c8ddcf92066fabb06ca4eca43dda3 100644 (file)
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -827,6 +827,7 @@ enum drm_plane_type {
 /**
  * struct drm_plane - central DRM plane control structure
  * @dev: DRM device this plane belongs to
+ * @parent: this plane share some resources with parent plane.
  * @head: for list management
  * @base: base mode object
  * @possible_crtcs: pipes this plane can be bound to
@@ -844,6 +845,7 @@ enum drm_plane_type {
  */
 struct drm_plane {
        struct drm_device *dev;
+       struct drm_plane *parent;
        struct list_head head;
 
        struct drm_modeset_lock mutex;
@@ -1074,6 +1076,8 @@ struct drm_mode_config {
         */
        int num_overlay_plane;
        int num_total_plane;
+       int num_share_plane;
+       int num_share_overlay_plane;
        struct list_head plane_list;
 
        int num_crtc;
@@ -1094,6 +1098,10 @@ struct drm_mode_config {
 
        struct mutex blob_lock;
 
+       /* pointers to share properties */
+       struct drm_property *prop_share_id;
+       struct drm_property *prop_share_flags;
+
        /* pointers to standard properties */
        struct list_head property_blob_list;
        struct drm_property *edid_property;
@@ -1269,6 +1277,13 @@ extern int drm_plane_init(struct drm_device *dev,
                          const struct drm_plane_funcs *funcs,
                          const uint32_t *formats, unsigned int format_count,
                          bool is_primary);
+extern int drm_share_plane_init(struct drm_device *dev, struct drm_plane *plane,
+                               struct drm_plane *parent,
+                               unsigned long possible_crtcs,
+                               const struct drm_plane_funcs *funcs,
+                               const uint32_t *formats,
+                               unsigned int format_count,
+                               enum drm_plane_type type);
 extern void drm_plane_cleanup(struct drm_plane *plane);
 extern unsigned int drm_plane_index(struct drm_plane *plane);
 extern struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx);