drm: Extract drm_mode_config.[hc]

And shuffle the kernel-doc structure a bit since drm_crtc.[hc] now
only contains CRTC-related functions and structures.

v2:
- rebase onto drm-misc
- don't forget to move drm_mode_config_cleanup.
- move 2 internal decls under the right heading (Chris)

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

4 files changed, 499 insertions, 469 deletions

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index adcfc8f922e3..883f3e75cfbc 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -16,7 +16,7 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_framebuffer.o drm_connector.o drm_blend.o \
 		drm_encoder.o drm_mode_object.o drm_property.o \
 		drm_plane.o drm_color_mgmt.o drm_print.o \
-		drm_dumb_buffers.o
+		drm_dumb_buffers.o drm_mode_config.o
 
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b0827634af18..239b64c85098 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -45,18 +45,6 @@
 #include "drm_crtc_internal.h"
 #include "drm_internal.h"
 
-/*
- * Global properties
- */
-static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
-	{ DRM_PLANE_TYPE_OVERLAY, "Overlay" },
-	{ DRM_PLANE_TYPE_PRIMARY, "Primary" },
-	{ DRM_PLANE_TYPE_CURSOR, "Cursor" },
-};
-
-/*
- * Optional properties
- */
 /**
  * drm_crtc_force_disable - Forcibly turn off a CRTC
  * @crtc: CRTC to turn off
@@ -114,7 +102,7 @@ static unsigned int drm_num_crtcs(struct drm_device *dev)
 	return num;
 }
 
-static int drm_crtc_register_all(struct drm_device *dev)
+int drm_crtc_register_all(struct drm_device *dev)
 {
 	struct drm_crtc *crtc;
 	int ret = 0;
@@ -133,7 +121,7 @@ static int drm_crtc_register_all(struct drm_device *dev)
 	return 0;
 }
 
-static void drm_crtc_unregister_all(struct drm_device *dev)
+void drm_crtc_unregister_all(struct drm_device *dev)
 {
 	struct drm_crtc *crtc;
 
@@ -285,301 +273,6 @@ void drm_crtc_cleanup(struct drm_crtc *crtc)
 }
 EXPORT_SYMBOL(drm_crtc_cleanup);
 
-int drm_modeset_register_all(struct drm_device *dev)
-{
-	int ret;
-
-	ret = drm_plane_register_all(dev);
-	if (ret)
-		goto err_plane;
-
-	ret = drm_crtc_register_all(dev);
-	if  (ret)
-		goto err_crtc;
-
-	ret = drm_encoder_register_all(dev);
-	if (ret)
-		goto err_encoder;
-
-	ret = drm_connector_register_all(dev);
-	if (ret)
-		goto err_connector;
-
-	return 0;
-
-err_connector:
-	drm_encoder_unregister_all(dev);
-err_encoder:
-	drm_crtc_unregister_all(dev);
-err_crtc:
-	drm_plane_unregister_all(dev);
-err_plane:
-	return ret;
-}
-
-void drm_modeset_unregister_all(struct drm_device *dev)
-{
-	drm_connector_unregister_all(dev);
-	drm_encoder_unregister_all(dev);
-	drm_crtc_unregister_all(dev);
-	drm_plane_unregister_all(dev);
-}
-
-static int drm_mode_create_standard_properties(struct drm_device *dev)
-{
-	struct drm_property *prop;
-	int ret;
-
-	ret = drm_connector_create_standard_properties(dev);
-	if (ret)
-		return ret;
-
-	prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
-					"type", drm_plane_type_enum_list,
-					ARRAY_SIZE(drm_plane_type_enum_list));
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.plane_type_property = prop;
-
-	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
-			"SRC_X", 0, UINT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_src_x = prop;
-
-	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
-			"SRC_Y", 0, UINT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_src_y = prop;
-
-	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
-			"SRC_W", 0, UINT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_src_w = prop;
-
-	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
-			"SRC_H", 0, UINT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_src_h = prop;
-
-	prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
-			"CRTC_X", INT_MIN, INT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_crtc_x = prop;
-
-	prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
-			"CRTC_Y", INT_MIN, INT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_crtc_y = prop;
-
-	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
-			"CRTC_W", 0, INT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_crtc_w = prop;
-
-	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
-			"CRTC_H", 0, INT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_crtc_h = prop;
-
-	prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
-			"FB_ID", DRM_MODE_OBJECT_FB);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_fb_id = prop;
-
-	prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
-			"CRTC_ID", DRM_MODE_OBJECT_CRTC);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_crtc_id = prop;
-
-	prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
-			"ACTIVE");
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_active = prop;
-
-	prop = drm_property_create(dev,
-			DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
-			"MODE_ID", 0);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.prop_mode_id = prop;
-
-	prop = drm_property_create(dev,
-			DRM_MODE_PROP_BLOB,
-			"DEGAMMA_LUT", 0);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.degamma_lut_property = prop;
-
-	prop = drm_property_create_range(dev,
-			DRM_MODE_PROP_IMMUTABLE,
-			"DEGAMMA_LUT_SIZE", 0, UINT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.degamma_lut_size_property = prop;
-
-	prop = drm_property_create(dev,
-			DRM_MODE_PROP_BLOB,
-			"CTM", 0);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.ctm_property = prop;
-
-	prop = drm_property_create(dev,
-			DRM_MODE_PROP_BLOB,
-			"GAMMA_LUT", 0);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.gamma_lut_property = prop;
-
-	prop = drm_property_create_range(dev,
-			DRM_MODE_PROP_IMMUTABLE,
-			"GAMMA_LUT_SIZE", 0, UINT_MAX);
-	if (!prop)
-		return -ENOMEM;
-	dev->mode_config.gamma_lut_size_property = prop;
-
-	return 0;
-}
-
-/**
- * drm_mode_getresources - get graphics configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Construct a set of configuration description structures and return
- * them to the user, including CRTC, connector and framebuffer configuration.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_getresources(struct drm_device *dev, void *data,
-			  struct drm_file *file_priv)
-{
-	struct drm_mode_card_res *card_res = data;
-	struct list_head *lh;
-	struct drm_framebuffer *fb;
-	struct drm_connector *connector;
-	struct drm_crtc *crtc;
-	struct drm_encoder *encoder;
-	int ret = 0;
-	int connector_count = 0;
-	int crtc_count = 0;
-	int fb_count = 0;
-	int encoder_count = 0;
-	int copied = 0;
-	uint32_t __user *fb_id;
-	uint32_t __user *crtc_id;
-	uint32_t __user *connector_id;
-	uint32_t __user *encoder_id;
-
-	if (!drm_core_check_feature(dev, DRIVER_MODESET))
-		return -EINVAL;
-
-
-	mutex_lock(&file_priv->fbs_lock);
-	/*
-	 * For the non-control nodes we need to limit the list of resources
-	 * by IDs in the group list for this node
-	 */
-	list_for_each(lh, &file_priv->fbs)
-		fb_count++;
-
-	/* handle this in 4 parts */
-	/* FBs */
-	if (card_res->count_fbs >= fb_count) {
-		copied = 0;
-		fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
-		list_for_each_entry(fb, &file_priv->fbs, filp_head) {
-			if (put_user(fb->base.id, fb_id + copied)) {
-				mutex_unlock(&file_priv->fbs_lock);
-				return -EFAULT;
-			}
-			copied++;
-		}
-	}
-	card_res->count_fbs = fb_count;
-	mutex_unlock(&file_priv->fbs_lock);
-
-	/* mode_config.mutex protects the connector list against e.g. DP MST
-	 * connector hot-adding. CRTC/Plane lists are invariant. */
-	mutex_lock(&dev->mode_config.mutex);
-	drm_for_each_crtc(crtc, dev)
-		crtc_count++;
-
-	drm_for_each_connector(connector, dev)
-		connector_count++;
-
-	drm_for_each_encoder(encoder, dev)
-		encoder_count++;
-
-	card_res->max_height = dev->mode_config.max_height;
-	card_res->min_height = dev->mode_config.min_height;
-	card_res->max_width = dev->mode_config.max_width;
-	card_res->min_width = dev->mode_config.min_width;
-
-	/* CRTCs */
-	if (card_res->count_crtcs >= crtc_count) {
-		copied = 0;
-		crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
-		drm_for_each_crtc(crtc, dev) {
-			if (put_user(crtc->base.id, crtc_id + copied)) {
-				ret = -EFAULT;
-				goto out;
-			}
-			copied++;
-		}
-	}
-	card_res->count_crtcs = crtc_count;
-
-	/* Encoders */
-	if (card_res->count_encoders >= encoder_count) {
-		copied = 0;
-		encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
-		drm_for_each_encoder(encoder, dev) {
-			if (put_user(encoder->base.id, encoder_id +
-				     copied)) {
-				ret = -EFAULT;
-				goto out;
-			}
-			copied++;
-		}
-	}
-	card_res->count_encoders = encoder_count;
-
-	/* Connectors */
-	if (card_res->count_connectors >= connector_count) {
-		copied = 0;
-		connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
-		drm_for_each_connector(connector, dev) {
-			if (put_user(connector->base.id,
-				     connector_id + copied)) {
-				ret = -EFAULT;
-				goto out;
-			}
-			copied++;
-		}
-	}
-	card_res->count_connectors = connector_count;
-
-out:
-	mutex_unlock(&dev->mode_config.mutex);
-	return ret;
-}
-
 /**
  * drm_mode_getcrtc - get CRTC configuration
  * @dev: drm device for the ioctl
@@ -934,157 +627,6 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
 }
 
 /**
- * drm_mode_config_reset - call ->reset callbacks
- * @dev: drm device
- *
- * This functions calls all the crtc's, encoder's and connector's ->reset
- * callback. Drivers can use this in e.g. their driver load or resume code to
- * reset hardware and software state.
- */
-void drm_mode_config_reset(struct drm_device *dev)
-{
-	struct drm_crtc *crtc;
-	struct drm_plane *plane;
-	struct drm_encoder *encoder;
-	struct drm_connector *connector;
-
-	drm_for_each_plane(plane, dev)
-		if (plane->funcs->reset)
-			plane->funcs->reset(plane);
-
-	drm_for_each_crtc(crtc, dev)
-		if (crtc->funcs->reset)
-			crtc->funcs->reset(crtc);
-
-	drm_for_each_encoder(encoder, dev)
-		if (encoder->funcs->reset)
-			encoder->funcs->reset(encoder);
-
-	mutex_lock(&dev->mode_config.mutex);
-	drm_for_each_connector(connector, dev)
-		if (connector->funcs->reset)
-			connector->funcs->reset(connector);
-	mutex_unlock(&dev->mode_config.mutex);
-}
-EXPORT_SYMBOL(drm_mode_config_reset);
-
-/**
- * drm_mode_config_init - initialize DRM mode_configuration structure
- * @dev: DRM device
- *
- * Initialize @dev's mode_config structure, used for tracking the graphics
- * configuration of @dev.
- *
- * Since this initializes the modeset locks, no locking is possible. Which is no
- * problem, since this should happen single threaded at init time. It is the
- * driver's problem to ensure this guarantee.
- *
- */
-void drm_mode_config_init(struct drm_device *dev)
-{
-	mutex_init(&dev->mode_config.mutex);
-	drm_modeset_lock_init(&dev->mode_config.connection_mutex);
-	mutex_init(&dev->mode_config.idr_mutex);
-	mutex_init(&dev->mode_config.fb_lock);
-	mutex_init(&dev->mode_config.blob_lock);
-	INIT_LIST_HEAD(&dev->mode_config.fb_list);
-	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
-	INIT_LIST_HEAD(&dev->mode_config.connector_list);
-	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
-	INIT_LIST_HEAD(&dev->mode_config.property_list);
-	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
-	INIT_LIST_HEAD(&dev->mode_config.plane_list);
-	idr_init(&dev->mode_config.crtc_idr);
-	idr_init(&dev->mode_config.tile_idr);
-	ida_init(&dev->mode_config.connector_ida);
-
-	drm_modeset_lock_all(dev);
-	drm_mode_create_standard_properties(dev);
-	drm_modeset_unlock_all(dev);
-
-	/* Just to be sure */
-	dev->mode_config.num_fb = 0;
-	dev->mode_config.num_connector = 0;
-	dev->mode_config.num_crtc = 0;
-	dev->mode_config.num_encoder = 0;
-	dev->mode_config.num_overlay_plane = 0;
-	dev->mode_config.num_total_plane = 0;
-}
-EXPORT_SYMBOL(drm_mode_config_init);
-
-/**
- * drm_mode_config_cleanup - free up DRM mode_config info
- * @dev: DRM device
- *
- * Free up all the connectors and CRTCs associated with this DRM device, then
- * free up the framebuffers and associated buffer objects.
- *
- * Note that since this /should/ happen single-threaded at driver/device
- * teardown time, no locking is required. It's the driver's job to ensure that
- * this guarantee actually holds true.
- *
- * FIXME: cleanup any dangling user buffer objects too
- */
-void drm_mode_config_cleanup(struct drm_device *dev)
-{
-	struct drm_connector *connector, *ot;
-	struct drm_crtc *crtc, *ct;
-	struct drm_encoder *encoder, *enct;
-	struct drm_framebuffer *fb, *fbt;
-	struct drm_property *property, *pt;
-	struct drm_property_blob *blob, *bt;
-	struct drm_plane *plane, *plt;
-
-	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
-				 head) {
-		encoder->funcs->destroy(encoder);
-	}
-
-	list_for_each_entry_safe(connector, ot,
-				 &dev->mode_config.connector_list, head) {
-		connector->funcs->destroy(connector);
-	}
-
-	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
-				 head) {
-		drm_property_destroy(dev, property);
-	}
-
-	list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
-				 head) {
-		plane->funcs->destroy(plane);
-	}
-
-	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
-		crtc->funcs->destroy(crtc);
-	}
-
-	list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
-				 head_global) {
-		drm_property_unreference_blob(blob);
-	}
-
-	/*
-	 * Single-threaded teardown context, so it's not required to grab the
-	 * fb_lock to protect against concurrent fb_list access. Contrary, it
-	 * would actually deadlock with the drm_framebuffer_cleanup function.
-	 *
-	 * Also, if there are any framebuffers left, that's a driver leak now,
-	 * so politely WARN about this.
-	 */
-	WARN_ON(!list_empty(&dev->mode_config.fb_list));
-	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
-		drm_framebuffer_free(&fb->base.refcount);
-	}
-
-	ida_destroy(&dev->mode_config.connector_ida);
-	idr_destroy(&dev->mode_config.tile_idr);
-	idr_destroy(&dev->mode_config.crtc_idr);
-	drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
-}
-EXPORT_SYMBOL(drm_mode_config_cleanup);
-
-/**
  * DOC: Tile group
  *
  * Tile groups are used to represent tiled monitors with a unique
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 64bb3eb7f806..f78d5aaf7e91 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -40,20 +40,27 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc,
 			    int x, int y,
 			    const struct drm_display_mode *mode,
 			    const struct drm_framebuffer *fb);
-
-void drm_fb_release(struct drm_file *file_priv);
+int drm_crtc_register_all(struct drm_device *dev);
+void drm_crtc_unregister_all(struct drm_device *dev);
 
 /* IOCTLs */
-int drm_mode_getresources(struct drm_device *dev,
-			  void *data, struct drm_file *file_priv);
 int drm_mode_getcrtc(struct drm_device *dev,
 		     void *data, struct drm_file *file_priv);
 int drm_mode_setcrtc(struct drm_device *dev,
 		     void *data, struct drm_file *file_priv);
 
-/* drm_dumb_buffers.c */
+
+/* drm_mode_config.c */
+int drm_modeset_register_all(struct drm_device *dev);
+void drm_modeset_unregister_all(struct drm_device *dev);
 
 /* IOCTLs */
+int drm_mode_getresources(struct drm_device *dev,
+			  void *data, struct drm_file *file_priv);
+
+
+/* drm_dumb_buffers.c */
+/* IOCTLs */
 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
 			       void *data, struct drm_file *file_priv);
 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
@@ -149,6 +156,8 @@ void drm_framebuffer_free(struct kref *kref);
 int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y,
 				     uint32_t src_w, uint32_t src_h,
 				     const struct drm_framebuffer *fb);
+void drm_fb_release(struct drm_file *file_priv);
+
 
 /* IOCTL */
 int drm_mode_addfb(struct drm_device *dev,
@@ -168,9 +177,6 @@ int drm_atomic_get_property(struct drm_mode_object *obj,
 int drm_mode_atomic_ioctl(struct drm_device *dev,
 			  void *data, struct drm_file *file_priv);
 
-int drm_modeset_register_all(struct drm_device *dev);
-void drm_modeset_unregister_all(struct drm_device *dev);
-
 
 /* drm_plane.c */
 int drm_plane_register_all(struct drm_device *dev);
diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c
new file mode 100644
index 000000000000..6f80886ed40b
--- /dev/null
+++ b/drivers/gpu/drm/drm_mode_config.c
@@ -0,0 +1,482 @@
+/*
+ * Copyright (c) 2016 Intel Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <drm/drm_mode_config.h>
+#include <drm/drmP.h>
+
+#include "drm_crtc_internal.h"
+#include "drm_internal.h"
+
+int drm_modeset_register_all(struct drm_device *dev)
+{
+	int ret;
+
+	ret = drm_plane_register_all(dev);
+	if (ret)
+		goto err_plane;
+
+	ret = drm_crtc_register_all(dev);
+	if  (ret)
+		goto err_crtc;
+
+	ret = drm_encoder_register_all(dev);
+	if (ret)
+		goto err_encoder;
+
+	ret = drm_connector_register_all(dev);
+	if (ret)
+		goto err_connector;
+
+	return 0;
+
+err_connector:
+	drm_encoder_unregister_all(dev);
+err_encoder:
+	drm_crtc_unregister_all(dev);
+err_crtc:
+	drm_plane_unregister_all(dev);
+err_plane:
+	return ret;
+}
+
+void drm_modeset_unregister_all(struct drm_device *dev)
+{
+	drm_connector_unregister_all(dev);
+	drm_encoder_unregister_all(dev);
+	drm_crtc_unregister_all(dev);
+	drm_plane_unregister_all(dev);
+}
+
+/**
+ * drm_mode_getresources - get graphics configuration
+ * @dev: drm device for the ioctl
+ * @data: data pointer for the ioctl
+ * @file_priv: drm file for the ioctl call
+ *
+ * Construct a set of configuration description structures and return
+ * them to the user, including CRTC, connector and framebuffer configuration.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_getresources(struct drm_device *dev, void *data,
+			  struct drm_file *file_priv)
+{
+	struct drm_mode_card_res *card_res = data;
+	struct list_head *lh;
+	struct drm_framebuffer *fb;
+	struct drm_connector *connector;
+	struct drm_crtc *crtc;
+	struct drm_encoder *encoder;
+	int ret = 0;
+	int connector_count = 0;
+	int crtc_count = 0;
+	int fb_count = 0;
+	int encoder_count = 0;
+	int copied = 0;
+	uint32_t __user *fb_id;
+	uint32_t __user *crtc_id;
+	uint32_t __user *connector_id;
+	uint32_t __user *encoder_id;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
+
+	mutex_lock(&file_priv->fbs_lock);
+	/*
+	 * For the non-control nodes we need to limit the list of resources
+	 * by IDs in the group list for this node
+	 */
+	list_for_each(lh, &file_priv->fbs)
+		fb_count++;
+
+	/* handle this in 4 parts */
+	/* FBs */
+	if (card_res->count_fbs >= fb_count) {
+		copied = 0;
+		fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
+		list_for_each_entry(fb, &file_priv->fbs, filp_head) {
+			if (put_user(fb->base.id, fb_id + copied)) {
+				mutex_unlock(&file_priv->fbs_lock);
+				return -EFAULT;
+			}
+			copied++;
+		}
+	}
+	card_res->count_fbs = fb_count;
+	mutex_unlock(&file_priv->fbs_lock);
+
+	/* mode_config.mutex protects the connector list against e.g. DP MST
+	 * connector hot-adding. CRTC/Plane lists are invariant. */
+	mutex_lock(&dev->mode_config.mutex);
+	drm_for_each_crtc(crtc, dev)
+		crtc_count++;
+
+	drm_for_each_connector(connector, dev)
+		connector_count++;
+
+	drm_for_each_encoder(encoder, dev)
+		encoder_count++;
+
+	card_res->max_height = dev->mode_config.max_height;
+	card_res->min_height = dev->mode_config.min_height;
+	card_res->max_width = dev->mode_config.max_width;
+	card_res->min_width = dev->mode_config.min_width;
+
+	/* CRTCs */
+	if (card_res->count_crtcs >= crtc_count) {
+		copied = 0;
+		crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
+		drm_for_each_crtc(crtc, dev) {
+			if (put_user(crtc->base.id, crtc_id + copied)) {
+				ret = -EFAULT;
+				goto out;
+			}
+			copied++;
+		}
+	}
+	card_res->count_crtcs = crtc_count;
+
+	/* Encoders */
+	if (card_res->count_encoders >= encoder_count) {
+		copied = 0;
+		encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
+		drm_for_each_encoder(encoder, dev) {
+			if (put_user(encoder->base.id, encoder_id +
+				     copied)) {
+				ret = -EFAULT;
+				goto out;
+			}
+			copied++;
+		}
+	}
+	card_res->count_encoders = encoder_count;
+
+	/* Connectors */
+	if (card_res->count_connectors >= connector_count) {
+		copied = 0;
+		connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
+		drm_for_each_connector(connector, dev) {
+			if (put_user(connector->base.id,
+				     connector_id + copied)) {
+				ret = -EFAULT;
+				goto out;
+			}
+			copied++;
+		}
+	}
+	card_res->count_connectors = connector_count;
+
+out:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
+
+/**
+ * drm_mode_config_reset - call ->reset callbacks
+ * @dev: drm device
+ *
+ * This functions calls all the crtc's, encoder's and connector's ->reset
+ * callback. Drivers can use this in e.g. their driver load or resume code to
+ * reset hardware and software state.
+ */
+void drm_mode_config_reset(struct drm_device *dev)
+{
+	struct drm_crtc *crtc;
+	struct drm_plane *plane;
+	struct drm_encoder *encoder;
+	struct drm_connector *connector;
+
+	drm_for_each_plane(plane, dev)
+		if (plane->funcs->reset)
+			plane->funcs->reset(plane);
+
+	drm_for_each_crtc(crtc, dev)
+		if (crtc->funcs->reset)
+			crtc->funcs->reset(crtc);
+
+	drm_for_each_encoder(encoder, dev)
+		if (encoder->funcs->reset)
+			encoder->funcs->reset(encoder);
+
+	mutex_lock(&dev->mode_config.mutex);
+	drm_for_each_connector(connector, dev)
+		if (connector->funcs->reset)
+			connector->funcs->reset(connector);
+	mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_mode_config_reset);
+
+/*
+ * Global properties
+ */
+static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
+	{ DRM_PLANE_TYPE_OVERLAY, "Overlay" },
+	{ DRM_PLANE_TYPE_PRIMARY, "Primary" },
+	{ DRM_PLANE_TYPE_CURSOR, "Cursor" },
+};
+
+static int drm_mode_create_standard_properties(struct drm_device *dev)
+{
+	struct drm_property *prop;
+	int ret;
+
+	ret = drm_connector_create_standard_properties(dev);
+	if (ret)
+		return ret;
+
+	prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
+					"type", drm_plane_type_enum_list,
+					ARRAY_SIZE(drm_plane_type_enum_list));
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.plane_type_property = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"SRC_X", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_src_x = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"SRC_Y", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_src_y = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"SRC_W", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_src_w = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"SRC_H", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_src_h = prop;
+
+	prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
+			"CRTC_X", INT_MIN, INT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_crtc_x = prop;
+
+	prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC,
+			"CRTC_Y", INT_MIN, INT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_crtc_y = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"CRTC_W", 0, INT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_crtc_w = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"CRTC_H", 0, INT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_crtc_h = prop;
+
+	prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
+			"FB_ID", DRM_MODE_OBJECT_FB);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_fb_id = prop;
+
+	prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
+			"CRTC_ID", DRM_MODE_OBJECT_CRTC);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_crtc_id = prop;
+
+	prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
+			"ACTIVE");
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_active = prop;
+
+	prop = drm_property_create(dev,
+			DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB,
+			"MODE_ID", 0);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.prop_mode_id = prop;
+
+	prop = drm_property_create(dev,
+			DRM_MODE_PROP_BLOB,
+			"DEGAMMA_LUT", 0);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.degamma_lut_property = prop;
+
+	prop = drm_property_create_range(dev,
+			DRM_MODE_PROP_IMMUTABLE,
+			"DEGAMMA_LUT_SIZE", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.degamma_lut_size_property = prop;
+
+	prop = drm_property_create(dev,
+			DRM_MODE_PROP_BLOB,
+			"CTM", 0);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.ctm_property = prop;
+
+	prop = drm_property_create(dev,
+			DRM_MODE_PROP_BLOB,
+			"GAMMA_LUT", 0);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.gamma_lut_property = prop;
+
+	prop = drm_property_create_range(dev,
+			DRM_MODE_PROP_IMMUTABLE,
+			"GAMMA_LUT_SIZE", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.gamma_lut_size_property = prop;
+
+	return 0;
+}
+
+/**
+ * drm_mode_config_init - initialize DRM mode_configuration structure
+ * @dev: DRM device
+ *
+ * Initialize @dev's mode_config structure, used for tracking the graphics
+ * configuration of @dev.
+ *
+ * Since this initializes the modeset locks, no locking is possible. Which is no
+ * problem, since this should happen single threaded at init time. It is the
+ * driver's problem to ensure this guarantee.
+ *
+ */
+void drm_mode_config_init(struct drm_device *dev)
+{
+	mutex_init(&dev->mode_config.mutex);
+	drm_modeset_lock_init(&dev->mode_config.connection_mutex);
+	mutex_init(&dev->mode_config.idr_mutex);
+	mutex_init(&dev->mode_config.fb_lock);
+	mutex_init(&dev->mode_config.blob_lock);
+	INIT_LIST_HEAD(&dev->mode_config.fb_list);
+	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
+	INIT_LIST_HEAD(&dev->mode_config.connector_list);
+	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
+	INIT_LIST_HEAD(&dev->mode_config.property_list);
+	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
+	INIT_LIST_HEAD(&dev->mode_config.plane_list);
+	idr_init(&dev->mode_config.crtc_idr);
+	idr_init(&dev->mode_config.tile_idr);
+	ida_init(&dev->mode_config.connector_ida);
+
+	drm_modeset_lock_all(dev);
+	drm_mode_create_standard_properties(dev);
+	drm_modeset_unlock_all(dev);
+
+	/* Just to be sure */
+	dev->mode_config.num_fb = 0;
+	dev->mode_config.num_connector = 0;
+	dev->mode_config.num_crtc = 0;
+	dev->mode_config.num_encoder = 0;
+	dev->mode_config.num_overlay_plane = 0;
+	dev->mode_config.num_total_plane = 0;
+}
+EXPORT_SYMBOL(drm_mode_config_init);
+
+/**
+ * drm_mode_config_cleanup - free up DRM mode_config info
+ * @dev: DRM device
+ *
+ * Free up all the connectors and CRTCs associated with this DRM device, then
+ * free up the framebuffers and associated buffer objects.
+ *
+ * Note that since this /should/ happen single-threaded at driver/device
+ * teardown time, no locking is required. It's the driver's job to ensure that
+ * this guarantee actually holds true.
+ *
+ * FIXME: cleanup any dangling user buffer objects too
+ */
+void drm_mode_config_cleanup(struct drm_device *dev)
+{
+	struct drm_connector *connector, *ot;
+	struct drm_crtc *crtc, *ct;
+	struct drm_encoder *encoder, *enct;
+	struct drm_framebuffer *fb, *fbt;
+	struct drm_property *property, *pt;
+	struct drm_property_blob *blob, *bt;
+	struct drm_plane *plane, *plt;
+
+	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
+				 head) {
+		encoder->funcs->destroy(encoder);
+	}
+
+	list_for_each_entry_safe(connector, ot,
+				 &dev->mode_config.connector_list, head) {
+		connector->funcs->destroy(connector);
+	}
+
+	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
+				 head) {
+		drm_property_destroy(dev, property);
+	}
+
+	list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
+				 head) {
+		plane->funcs->destroy(plane);
+	}
+
+	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+		crtc->funcs->destroy(crtc);
+	}
+
+	list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
+				 head_global) {
+		drm_property_unreference_blob(blob);
+	}
+
+	/*
+	 * Single-threaded teardown context, so it's not required to grab the
+	 * fb_lock to protect against concurrent fb_list access. Contrary, it
+	 * would actually deadlock with the drm_framebuffer_cleanup function.
+	 *
+	 * Also, if there are any framebuffers left, that's a driver leak now,
+	 * so politely WARN about this.
+	 */
+	WARN_ON(!list_empty(&dev->mode_config.fb_list));
+	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
+		drm_framebuffer_free(&fb->base.refcount);
+	}
+
+	ida_destroy(&dev->mode_config.connector_ida);
+	idr_destroy(&dev->mode_config.tile_idr);
+	idr_destroy(&dev->mode_config.crtc_idr);
+	drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
+}
+EXPORT_SYMBOL(drm_mode_config_cleanup);