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-rw-r--r--include/drm/drm_crtc.h24
1 files changed, 23 insertions, 1 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 27f828c..3894f85 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -541,6 +541,12 @@ struct drm_plane_funcs {
struct drm_property *property, uint64_t val);
};
+enum drm_plane_type {
+ DRM_PLANE_TYPE_OVERLAY,
+ DRM_PLANE_TYPE_PRIMARY,
+ DRM_PLANE_TYPE_CURSOR,
+};
+
/**
* drm_plane - central DRM plane control structure
* @dev: DRM device this plane belongs to
@@ -553,6 +559,7 @@ struct drm_plane_funcs {
* @fb: currently bound fb
* @funcs: helper functions
* @properties: property tracking for this plane
+ * @type: type of plane (overlay, primary, cursor)
*/
struct drm_plane {
struct drm_device *dev;
@@ -570,6 +577,8 @@ struct drm_plane {
const struct drm_plane_funcs *funcs;
struct drm_object_properties properties;
+
+ enum drm_plane_type type;
};
/**
@@ -732,7 +741,15 @@ struct drm_mode_config {
struct list_head bridge_list;
int num_encoder;
struct list_head encoder_list;
- int num_plane;
+
+ /*
+ * Track # of overlay planes separately from # of total planes. By
+ * default we only advertise overlay planes to userspace; if userspace
+ * sets the "universal plane" capability bit, we'll go ahead and
+ * expose all planes.
+ */
+ int num_overlay_plane;
+ int num_total_plane;
struct list_head plane_list;
int num_crtc;
@@ -1036,4 +1053,9 @@ static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
return mo ? obj_to_encoder(mo) : NULL;
}
+/* Plane list iterator for legacy (overlay only) planes. */
+#define drm_for_each_legacy_plane(plane, planelist) \
+ list_for_each_entry(plane, planelist, head) \
+ if (plane->type == DRM_PLANE_TYPE_OVERLAY)
+
#endif /* __DRM_CRTC_H__ */
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