drm/vmwgfx: Add connector properties to switch between explicit and implicit placement

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>

drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

@@ -409,6 +409,7 @@ struct vmw_private {
 	struct vmw_legacy_display *ldu_priv;
 	struct vmw_overlay *overlay_priv;
 	struct drm_property *hotplug_mode_update_property;
+	struct drm_property *implicit_placement_property;
 	unsigned num_implicit;
 	struct vmw_framebuffer *implicit_fb;
 

drivers/gpu/drm/vmwgfx/vmwgfx_kms.c

@@ -1622,6 +1622,12 @@ int vmw_du_connector_set_property(struct drm_connector *connector,
 				  struct drm_property *property,
 				  uint64_t val)
 {
+	struct vmw_display_unit *du = vmw_connector_to_du(connector);
+	struct vmw_private *dev_priv = vmw_priv(connector->dev);
+
+	if (property == dev_priv->implicit_placement_property)
+		du->is_implicit = val;
+
 	return 0;
 }
 
@@ -2219,3 +2225,27 @@ void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv,
 
 	dev_priv->implicit_fb = vfb;
 }
+
+/**
+ * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
+ * property.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @immutable: Whether the property is immutable.
+ *
+ * Sets up the implicit placement property unless it's already set up.
+ */
+void
+vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv,
+					   bool immutable)
+{
+	if (dev_priv->implicit_placement_property)
+		return;
+
+	dev_priv->implicit_placement_property =
+		drm_property_create_range(dev_priv->dev,
+					  immutable ?
+					  DRM_MODE_PROP_IMMUTABLE : 0,
+					  "implicit_placement", 0, 1);
+
+}

drivers/gpu/drm/vmwgfx/vmwgfx_kms.h

@@ -264,7 +264,8 @@ bool vmw_kms_crtc_flippable(struct vmw_private *dev_priv,
 			    struct drm_crtc *crtc);
 void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv,
 				struct drm_crtc *crtc);
-
+void vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv,
+						bool immutable);
 
 
 /*

drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c

@@ -383,6 +383,11 @@ static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
 				   dev->mode_config.suggested_x_property, 0);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.suggested_y_property, 0);
+	if (dev_priv->implicit_placement_property)
+		drm_object_attach_property
+			(&connector->base,
+			 dev_priv->implicit_placement_property,
+			 1);
 
 	return 0;
 }
@@ -418,6 +423,8 @@ int vmw_kms_ldu_init_display(struct vmw_private *dev_priv)
 	if (ret != 0)
 		goto err_vblank_cleanup;
 
+	vmw_kms_create_implicit_placement_property(dev_priv, true);
+
 	if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
 		for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
 			vmw_ldu_init(dev_priv, i);

drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c

@@ -541,6 +541,11 @@ static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
 				   dev->mode_config.suggested_x_property, 0);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.suggested_y_property, 0);
+	if (dev_priv->implicit_placement_property)
+		drm_object_attach_property
+			(&connector->base,
+			 dev_priv->implicit_placement_property,
+			 sou->base.is_implicit);
 
 	return 0;
 }
@@ -568,6 +573,8 @@ int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
 	if (unlikely(ret != 0))
 		goto err_vblank_cleanup;
 
+	vmw_kms_create_implicit_placement_property(dev_priv, false);
+
 	for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
 		vmw_sou_init(dev_priv, i);
 

drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c

@@ -1134,7 +1134,11 @@ static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
 				   dev->mode_config.suggested_x_property, 0);
 	drm_object_attach_property(&connector->base,
 				   dev->mode_config.suggested_y_property, 0);
-
+	if (dev_priv->implicit_placement_property)
+		drm_object_attach_property
+			(&connector->base,
+			 dev_priv->implicit_placement_property,
+			 stdu->base.is_implicit);
 	return 0;
 }
 
@@ -1199,6 +1203,8 @@ int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
 
 	dev_priv->active_display_unit = vmw_du_screen_target;
 
+	vmw_kms_create_implicit_placement_property(dev_priv, false);
+
 	for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
 		ret = vmw_stdu_init(dev_priv, i);