Merge tag 'topic/atomic-core-2015-01-27' of git://anongit.freedesktop.org/drm-intel into drm-next

* tag 'topic/atomic-core-2015-01-27' of git://anongit.freedesktop.org/drm-intel:
  drm/atomic: Fix potential use of state after free
  drm/atomic-helper: debug output for modesets
  drm/atomic-helpers: Saner encoder/crtc callbacks
  drm/atomic-helpers: Recover full cursor plane behaviour
  drm/atomic-helper: add connector->dpms() implementation
  drm/atomic: Add drm_crtc_state->active
  drm: Add standardized boolean props
  drm/plane-helper: Fix transitional helper kerneldocs
  drm/plane-helper: Skip prepare_fb/cleanup_fb when newfb==oldfb

Conflicts:
	include/drm/drm_crtc_helper.h

include/drm/drm_atomic_helper.h

@@ -82,6 +82,8 @@ int drm_atomic_helper_page_flip(struct drm_crtc *crtc,
 				struct drm_framebuffer *fb,
 				struct drm_pending_vblank_event *event,
 				uint32_t flags);
+void drm_atomic_helper_connector_dpms(struct drm_connector *connector,
+				      int mode);
 
 /* default implementations for state handling */
 void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc);

include/drm/drm_crtc.h

@@ -253,6 +253,7 @@ struct drm_atomic_state;
  * @enable: whether the CRTC should be enabled, gates all other state
  * @active: whether the CRTC is actively displaying (used for DPMS)
  * @mode_changed: for use by helpers and drivers when computing state updates
+ * @active_changed: for use by helpers and drivers when computing state updates
  * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
  * @last_vblank_count: for helpers and drivers to capture the vblank of the
  * 	update to ensure framebuffer cleanup isn't done too early
@@ -278,6 +279,7 @@ struct drm_crtc_state {
 	/* computed state bits used by helpers and drivers */
 	bool planes_changed : 1;
 	bool mode_changed : 1;
+	bool active_changed : 1;
 
 	/* attached planes bitmask:
 	 * WARNING: transitional helpers do not maintain plane_mask so
@@ -910,6 +912,7 @@ struct drm_bridge {
  * struct struct drm_atomic_state - the global state object for atomic updates
  * @dev: parent DRM device
  * @allow_modeset: allow full modeset
+ * @legacy_cursor_update: hint to enforce legacy cursor ioctl semantics
  * @planes: pointer to array of plane pointers
  * @plane_states: pointer to array of plane states pointers
  * @crtcs: pointer to array of CRTC pointers
@@ -922,6 +925,7 @@ struct drm_bridge {
 struct drm_atomic_state {
 	struct drm_device *dev;
 	bool allow_modeset : 1;
+	bool legacy_cursor_update : 1;
 	struct drm_plane **planes;
 	struct drm_plane_state **plane_states;
 	struct drm_crtc **crtcs;
@@ -1117,6 +1121,7 @@ struct drm_mode_config {
 	struct drm_property *prop_crtc_h;
 	struct drm_property *prop_fb_id;
 	struct drm_property *prop_crtc_id;
+	struct drm_property *prop_active;
 
 	/* DVI-I properties */
 	struct drm_property *dvi_i_subconnector_property;
@@ -1349,6 +1354,8 @@ struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
 					 int64_t min, int64_t max);
 struct drm_property *drm_property_create_object(struct drm_device *dev,
 					 int flags, const char *name, uint32_t type);
+struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags,
+					 const char *name);
 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
 extern int drm_property_add_enum(struct drm_property *property, int index,
 				 uint64_t value, const char *name);

include/drm/drm_crtc_helper.h

@@ -58,11 +58,19 @@ enum mode_set_atomic {
  * @mode_set_base_atomic: non-blocking mode set (used for kgdb support)
  * @load_lut: load color palette
  * @disable: disable CRTC when no longer in use
+ * @enable: enable CRTC
  * @atomic_check: check for validity of an atomic state
  * @atomic_begin: begin atomic update
  * @atomic_flush: flush atomic update
  *
  * The helper operations are called by the mid-layer CRTC helper.
+ *
+ * Note that with atomic helpers @dpms, @prepare and @commit hooks are
+ * deprecated. Used @enable and @disable instead exclusively.
+ *
+ * With legacy crtc helpers there's a big semantic difference between @disable
+ * and the other hooks: @disable also needs to release any resources acquired in
+ * @mode_set (like shared PLLs).
  */
 struct drm_crtc_helper_funcs {
 	/*
@@ -93,8 +101,8 @@ struct drm_crtc_helper_funcs {
 	/* reload the current crtc LUT */
 	void (*load_lut)(struct drm_crtc *crtc);
 
-	/* disable crtc when not in use - more explicit than dpms off */
 	void (*disable)(struct drm_crtc *crtc);
+	void (*enable)(struct drm_crtc *crtc);
 
 	/* atomic helpers */
 	int (*atomic_check)(struct drm_crtc *crtc,
@@ -115,9 +123,17 @@ struct drm_crtc_helper_funcs {
  * @get_crtc: return CRTC that the encoder is currently attached to
  * @detect: connection status detection
  * @disable: disable encoder when not in use (overrides DPMS off)
+ * @enable: enable encoder
  * @atomic_check: check for validity of an atomic update
  *
  * The helper operations are called by the mid-layer CRTC helper.
+ *
+ * Note that with atomic helpers @dpms, @prepare and @commit hooks are
+ * deprecated. Used @enable and @disable instead exclusively.
+ *
+ * With legacy crtc helpers there's a big semantic difference between @disable
+ * and the other hooks: @disable also needs to release any resources acquired in
+ * @mode_set (like shared PLLs).
  */
 struct drm_encoder_helper_funcs {
 	void (*dpms)(struct drm_encoder *encoder, int mode);
@@ -136,9 +152,10 @@ struct drm_encoder_helper_funcs {
 	/* detect for DAC style encoders */
 	enum drm_connector_status (*detect)(struct drm_encoder *encoder,
 					    struct drm_connector *connector);
-	/* disable encoder when not in use - more explicit than dpms off */
 	void (*disable)(struct drm_encoder *encoder);
 
+	void (*enable)(struct drm_encoder *encoder);
+
 	/* atomic helpers */
 	int (*atomic_check)(struct drm_encoder *encoder,
 			    struct drm_crtc_state *crtc_state,