[RFC,1/2] drm: add support for framebuffer processors

diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 0238bf8bc8c3..9ff4e04d8071 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -12,7 +12,8 @@  drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_info.o drm_debugfs.o drm_encoder_slave.o \
 		drm_trace_points.o drm_global.o drm_prime.o \
 		drm_rect.o drm_vma_manager.o drm_flip_work.o \
-		drm_modeset_lock.o drm_atomic.o drm_bridge.o
+		drm_modeset_lock.o drm_atomic.o drm_bridge.o \
+		drm_fbproc.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_atomic.c b/drivers/gpu/drm/drm_atomic.c
index fa3930757972..5338c2898db2 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -1059,6 +1059,11 @@  int drm_atomic_get_property(struct drm_mode_object *obj,
 				plane->state, property, val);
 		break;
 	}
+	case DRM_MODE_OBJECT_FBPROC: {
+		struct drm_fbproc *fbproc = obj_to_fbproc(obj);
+		ret = drm_fbproc_get_property(fbproc, property, val);
+		break;
+	}
 	default:
 		ret = -EINVAL;
 		break;
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index e92bb9d3f90f..091d33516335 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -1540,6 +1540,7 @@  void drm_modeset_unregister_all(struct drm_device *dev)
 static int drm_mode_create_standard_properties(struct drm_device *dev)
 {
 	struct drm_property *prop;
+	int ret;
 
 	/*
 	 * Standard properties (apply to all connectors)
@@ -1689,6 +1690,10 @@  static int drm_mode_create_standard_properties(struct drm_device *dev)
 		return -ENOMEM;
 	dev->mode_config.gamma_lut_size_property = prop;
 
+	ret = drm_fbproc_create_properties(dev);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
@@ -5692,6 +5697,7 @@  void drm_mode_config_init(struct drm_device *dev)
 	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);
+	INIT_LIST_HEAD(&dev->mode_config.fbproc_list);
 	idr_init(&dev->mode_config.crtc_idr);
 	idr_init(&dev->mode_config.tile_idr);
 	ida_init(&dev->mode_config.connector_ida);
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 0c34e6d906d1..bbdea67cefdf 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -132,3 +132,15 @@  void drm_modeset_unregister_all(struct drm_device *dev);
 /* drm_blend.c */
 int drm_atomic_helper_normalize_zpos(struct drm_device *dev,
 				     struct drm_atomic_state *state);
+
+/* drm_fbproc.c */
+int drm_fbproc_create_properties(struct drm_device *dev);
+int drm_fbproc_get_property(struct drm_fbproc *fbproc,
+			     struct drm_property *property, uint64_t *val);
+
+int drm_mode_getfbproc_res(struct drm_device *dev, void *data,
+			 struct drm_file *file_priv);
+int drm_mode_getfbproc(struct drm_device *dev, void *data,
+                      struct drm_file *file_priv);
+int drm_mode_fbproc_ioctl(struct drm_device *dev,
+			  void *data, struct drm_file *file_priv);
diff --git a/drivers/gpu/drm/drm_fbproc.c b/drivers/gpu/drm/drm_fbproc.c
new file mode 100644
index 000000000000..49aa9e0ee992
--- /dev/null
+++ b/drivers/gpu/drm/drm_fbproc.c
@@ -0,0 +1,754 @@ 
+/*
+ * Copyright (C) 2016 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Marek Szyprowski <m.szyprowski@samsung.com>
+ *
+ * DRM core framebuffer processor (fbproc) related functions
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include <drm/drmP.h>
+#include <drm/drm_mode.h>
+
+#include "drm_crtc_internal.h"
+
+/**
+ * drm_fbproc_create_properties - Initialize standard fbproc properties
+ * @dev: DRM device
+ *
+ * Initializes all standard fbproc properties.
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drm_fbproc_create_properties(struct drm_device *dev)
+{
+	struct drm_property *prop;
+
+	prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
+			"SRC_FB_ID", DRM_MODE_OBJECT_FB);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_src_fb = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"SRC_X", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_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.fbproc_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.fbproc_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.fbproc_src_h = prop;
+
+	prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC,
+			"DST_FB_ID", DRM_MODE_OBJECT_FB);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_dst_fb = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"DST_X", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_dst_x = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"DST_Y", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_dst_y = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"DST_W", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_dst_w = prop;
+
+	prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC,
+			"DST_H", 0, UINT_MAX);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.fbproc_dst_h = prop;
+
+	return 0;
+}
+
+static unsigned int drm_num_fbprocs(struct drm_device *dev)
+{
+	unsigned int num = 0;
+	struct drm_fbproc *tmp;
+
+	drm_for_each_fbproc(tmp, dev) {
+		num++;
+	}
+
+	return num;
+}
+
+/**
+ * drm_fbproc_init - Initialize a new framebuffer processor object
+ * @dev: DRM device
+ * @fbproc: fbproc object to init
+ * @funcs: callbacks for the new fbproc object
+ * @caps: bitmask of fbproc capabilities (%DRM_FBPROC_CAP_*)
+ * @src_fmts: array of supported source fb formats (%DRM_FORMAT_*)
+ * @src_fmt_count: number of elements in @src_fmts
+ * @dst_fmts: array of supported destination fb formats (%DRM_FORMAT_*)
+ * @dst_fmt_count: number of elements in @dst_fmts
+ * @name: printf style format string, or NULL for the default name
+ *
+ * Initializes a fbproc object.
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drm_fbproc_init(struct drm_device *dev, struct drm_fbproc *fbproc,
+		       const struct drm_fbproc_funcs *funcs, unsigned int caps,
+		       const uint32_t *src_fmts, unsigned int src_fmt_count,
+		       const uint32_t *dst_fmts, unsigned int dst_fmt_count,
+		       const char *name, ...)
+{
+	struct drm_mode_config *config = &dev->mode_config;
+	int ret;
+
+	ret = drm_mode_object_get(dev, &fbproc->base, DRM_MODE_OBJECT_FBPROC);
+	if (ret)
+		return ret;
+
+	fbproc->base.properties = &fbproc->properties;
+	fbproc->dev = dev;
+	fbproc->funcs = funcs;
+	fbproc->capabilities = caps;
+	fbproc->src_format_count = src_fmt_count;
+	fbproc->dst_format_count = dst_fmt_count;
+
+	if (name) {
+		va_list ap;
+
+		va_start(ap, name);
+		fbproc->name = kvasprintf(GFP_KERNEL, name, ap);
+		va_end(ap);
+	} else {
+		fbproc->name = kasprintf(GFP_KERNEL, "fbproc-%d",
+					drm_num_fbprocs(dev));
+	}
+	if (!fbproc->name)
+		goto free;
+
+	fbproc->src_format_types = kmemdup(src_fmts,
+				  sizeof(uint32_t) * src_fmt_count, GFP_KERNEL);
+	if (!fbproc->src_format_types)
+		goto free;
+
+	fbproc->dst_format_types = kmemdup(dst_fmts,
+				  sizeof(uint32_t) * dst_fmt_count, GFP_KERNEL);
+	if (!fbproc->dst_format_types)
+		goto free;
+
+	list_add_tail(&fbproc->head, &config->fbproc_list);
+	fbproc->index = config->num_fbproc++;
+
+	drm_object_attach_property(&fbproc->base, config->fbproc_src_fb, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_src_x, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_src_y, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_src_w, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_src_h, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_dst_fb, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_dst_x, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_dst_y, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_dst_w, 0);
+	drm_object_attach_property(&fbproc->base, config->fbproc_dst_h, 0);
+
+	return 0;
+
+free:
+	kfree(fbproc->dst_format_types);
+	kfree(fbproc->src_format_types);
+	kfree(fbproc->name);
+	drm_mode_object_unregister(dev, &fbproc->base);
+	return -ENOMEM;
+
+}
+EXPORT_SYMBOL(drm_fbproc_init);
+
+/**
+ * drm_mode_getfbproc_res - enumerate all fbproc resources
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * Construct a list of fbproc ids to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_getfbproc_res(struct drm_device *dev, void *data,
+			  struct drm_file *file_priv)
+{
+	struct drm_mode_get_fbproc_res *resp = data;
+	struct drm_mode_config *config;
+	struct drm_fbproc *fbproc;
+	uint32_t __user *fbproc_ptr;
+	unsigned int count, copied = 0;
+
+	if (!drm_core_check_feature(dev, DRIVER_FBPROC))
+		return -EINVAL;
+
+	config = &dev->mode_config;
+	count = config->num_fbproc;
+
+	/*
+	 * This ioctl is called twice, once to determine how much space is
+	 * needed, and the 2nd time to fill it.
+	 */
+	if (count && resp->count_fbprocs >= count) {
+		fbproc_ptr = (uint32_t __user *)
+					(unsigned long)resp->fbproc_id_ptr;
+
+		/* Processor lists are invariant, no locking needed. */
+		drm_for_each_fbproc(fbproc, dev) {
+			if (put_user(fbproc->base.id, fbproc_ptr + copied))
+				return -EFAULT;
+			copied++;
+		}
+	}
+	resp->count_fbprocs = count;
+
+	return 0;
+}
+
+/**
+ * drm_mode_getfbproc - get framebuffer processor configuration
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * Construct a fbproc configuration structure to return to the user.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_getfbproc(struct drm_device *dev, void *data,
+		      struct drm_file *file_priv)
+{
+	struct drm_mode_get_fbproc *resp = data;
+	struct drm_fbproc *fbproc;
+	uint32_t __user *format_ptr;
+
+	if (!drm_core_check_feature(dev, DRIVER_FBPROC))
+		return -EINVAL;
+
+	fbproc = drm_fbproc_find(dev, resp->fbproc_id);
+	if (!fbproc)
+		return -ENOENT;
+
+	resp->fbproc_id = fbproc->base.id;
+	resp->capabilities = fbproc->capabilities;
+
+	/*
+	 * This ioctl is called twice, once to determine how much space is
+	 * needed, and the 2nd time to fill it.
+	 */
+	if (fbproc->src_format_count &&
+	    (resp->src_format_count >= fbproc->src_format_count)) {
+		format_ptr = (uint32_t __user *)
+				(unsigned long)resp->src_format_type_ptr;
+		if (copy_to_user(format_ptr, fbproc->src_format_types,
+				 sizeof(uint32_t) * fbproc->src_format_count))
+			return -EFAULT;
+	}
+	if (fbproc->dst_format_count &&
+	    (resp->dst_format_count >= fbproc->dst_format_count)) {
+		format_ptr = (uint32_t __user *)
+				(unsigned long)resp->dst_format_type_ptr;
+		if (copy_to_user(format_ptr, fbproc->dst_format_types,
+				 sizeof(uint32_t) * fbproc->dst_format_count))
+			return -EFAULT;
+	}
+	resp->src_format_count = fbproc->src_format_count;
+	resp->dst_format_count = fbproc->dst_format_count;
+
+	return 0;
+}
+
+/**
+ * drm_atomic_task_init - init new fbproc task
+ * @fbproc: fbproc object for this task
+ * @task: task structure to initialize
+ *
+ * Default implementation for filling in a new fbproc task.
+ * This is useful for drivers that subclass the fbproc task.
+ */
+int drm_fbproc_task_init(struct drm_fbproc *fbproc,
+			 struct drm_fbproc_task *task)
+{
+	drm_mode_object_reference(&fbproc->base);
+	task->dev = fbproc->dev;
+	task->fbproc = fbproc;
+	task->src_w = task->dst_w = UINT_MAX;
+	task->src_h = task->dst_h = UINT_MAX;
+	task->rotation = DRM_ROTATE_0;
+
+	DRM_DEBUG_FBPROC("Allocated task %p\n", task);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_fbproc_task_init);
+
+/**
+ * drm_fbproc_task_clear - clear base fbproc task
+ * @fbproc: fbproc object for this task
+ * @task: task structure to clear
+ *
+ * Default implementation for clearing fbproc task.
+ * This is useful for drivers that subclass the fbproc task.
+ */
+void drm_fbproc_task_clear(struct drm_fbproc *fbproc,
+			   struct drm_fbproc_task *task)
+{
+	DRM_DEBUG_ATOMIC("Clearing task %p\n", task);
+
+	if (task->fbproc) {
+		drm_mode_object_unreference(&task->fbproc->base);
+		task->fbproc = NULL;
+	}
+	if (task->src_fb) {
+		drm_framebuffer_unreference(task->src_fb);
+		task->src_fb = NULL;
+	}
+	if (task->dst_fb) {
+		drm_framebuffer_unreference(task->dst_fb);
+		task->dst_fb = NULL;
+	}
+	if (task->event) {
+		drm_event_cancel_free(fbproc->dev, &task->event->base);
+		task->event = NULL;
+	}
+}
+EXPORT_SYMBOL(drm_fbproc_task_clear);
+
+static inline struct drm_fbproc_task *
+	drm_fbproc_task_alloc(struct drm_fbproc *fbproc)
+{
+	struct drm_fbproc_task *task;
+
+	if (!fbproc->funcs->task_alloc) {
+		task = kzalloc(sizeof(*task), GFP_KERNEL);
+		if (!task)
+			return NULL;
+		if (drm_fbproc_task_init(fbproc, task) < 0) {
+			kfree(task);
+			return NULL;
+		}
+		return task;
+	}
+	return fbproc->funcs->task_alloc(fbproc);
+}
+
+static void drm_fbproc_task_free(struct drm_fbproc *fbproc,
+				 struct drm_fbproc_task *task)
+{
+	DRM_DEBUG_FBPROC("Freeing task %p\n", task);
+
+	if (!fbproc->funcs->task_free) {
+		drm_fbproc_task_clear(fbproc, task);
+		kfree(task);
+	} else {
+		fbproc->funcs->task_free(fbproc, task);
+	}
+}
+
+/**
+ * drm_fbproc_get_property - get default values for fbproc properties
+ * @fbproc: fbproc object read a property from
+ * @property: the property to get
+ * @val: return location for the property value
+ *
+ * This function handles generic/core properties and calls out to
+ * object's ->get_property() for custom properties.
+ *
+ * RETURNS:
+ * Zero on success, error code on failure
+ */
+int drm_fbproc_get_property(struct drm_fbproc *fbproc,
+			    struct drm_property *property, uint64_t *val)
+{
+	struct drm_device *dev = fbproc->dev;
+	struct drm_mode_config *config = &dev->mode_config;
+
+	/* Default values for mandatory properties, nothing interesting */
+	if (property == config->fbproc_src_fb ||
+	    property == config->fbproc_src_x ||
+	    property == config->fbproc_src_y ||
+	    property == config->fbproc_src_w ||
+	    property == config->fbproc_src_h ||
+	    property == config->fbproc_dst_fb ||
+	    property == config->fbproc_dst_x ||
+	    property == config->fbproc_dst_y ||
+	    property == config->fbproc_dst_w ||
+	    property == config->fbproc_dst_h) {
+		*val = 0;
+	} else if (property == fbproc->rotation_property) {
+		*val = DRM_ROTATE_0;
+	} else if (fbproc->funcs->get_property) {
+		return fbproc->funcs->get_property(fbproc, property, val);
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int drm_fbproc_set_property(struct drm_fbproc_task *task,
+		struct drm_property *prop, uint64_t prop_value)
+{
+	struct drm_device *dev = task->dev;
+	struct drm_fbproc *fbproc = task->fbproc;
+	struct drm_mode_config *config = &dev->mode_config;
+	struct drm_mode_object *ref;
+	struct drm_framebuffer *fb;
+	int ret = 0;
+
+	if (!drm_property_change_valid_get(prop, prop_value, &ref))
+		return -EINVAL;
+
+	if (prop == config->fbproc_src_fb) {
+		fb = drm_framebuffer_lookup(dev, prop_value);
+		if (task->src_fb)
+			drm_framebuffer_unreference(task->src_fb);
+		task->src_fb = fb;
+	} else if (prop == config->fbproc_src_x) {
+		task->src_x = prop_value;
+	} else if (prop == config->fbproc_src_y) {
+		task->src_y = prop_value;
+	} else if (prop == config->fbproc_src_w) {
+		task->src_w = prop_value;
+	} else if (prop == config->fbproc_src_h) {
+		task->src_h = prop_value;
+	} else if (prop == config->fbproc_dst_fb) {
+		fb = drm_framebuffer_lookup(dev, prop_value);
+		if (task->dst_fb)
+			drm_framebuffer_unreference(task->dst_fb);
+		task->dst_fb = fb;
+	} else if (prop == config->fbproc_dst_x) {
+		task->dst_x = prop_value;
+	} else if (prop == config->fbproc_dst_y) {
+		task->dst_y = prop_value;
+	} else if (prop == config->fbproc_dst_w) {
+		task->dst_w = prop_value;
+	} else if (prop == config->fbproc_dst_h) {
+		task->dst_h = prop_value;
+	} else if (prop == fbproc->rotation_property) {
+		task->rotation = prop_value;
+	} else if (fbproc->funcs->set_property) {
+		ret = fbproc->funcs->set_property(fbproc, task, prop,
+						  prop_value);
+	} else {
+		ret = -EINVAL;
+	}
+
+	drm_property_change_valid_put(prop, ref);
+	return ret;
+}
+
+static struct drm_pending_fbproc_event *drm_fbproc_create_event(
+			struct drm_device *dev, struct drm_file *file_priv,
+			uint64_t user_data)
+{
+	struct drm_pending_fbproc_event *e = NULL;
+	int ret;
+
+	e = kzalloc(sizeof(*e), GFP_KERNEL);
+	if (!e)
+		return NULL;
+
+	e->event.base.type = DRM_EVENT_FBPROC_COMPLETE;
+	e->event.base.length = sizeof(e->event);
+	e->event.user_data = user_data;
+
+	if (file_priv) {
+		ret = drm_event_reserve_init(dev, file_priv, &e->base,
+					     &e->event.base);
+		if (ret) {
+			kfree(e);
+			return NULL;
+		}
+	}
+
+	return e;
+}
+
+static void drm_fbproc_send_event(struct drm_device *dev,
+				  struct drm_fbproc *fbproc,
+				  struct drm_pending_fbproc_event *e)
+{
+	struct timeval now = ktime_to_timeval(ktime_get());
+
+	e->event.tv_sec = now.tv_sec;
+	e->event.tv_usec = now.tv_usec;
+	e->event.sequence = atomic_inc_return(&fbproc->sequence);
+
+	drm_send_event(dev, &e->base);
+}
+
+static inline bool drm_fb_check_format(struct drm_framebuffer *fb,
+				const uint32_t *formats, int format_counts)
+{
+	while (format_counts--)
+		if (*formats++ == fb->pixel_format)
+			return true;
+	return false;
+}
+
+static int drm_fbproc_check_only(struct drm_fbproc_task *task)
+{
+	struct drm_fbproc *fbproc = task->fbproc;
+	int ret = 0;
+
+	DRM_DEBUG_FBPROC("checking %p\n", task);
+
+	if (!task->src_fb || !task->dst_fb)
+		return -EINVAL;
+
+	if (!drm_fb_check_format(task->src_fb, fbproc->src_format_types,
+				 fbproc->src_format_count))
+		return -EINVAL;
+
+	if (!drm_fb_check_format(task->dst_fb, fbproc->dst_format_types,
+				 fbproc->dst_format_count))
+		return -EINVAL;
+
+	if (task->src_w == UINT_MAX)
+		task->src_w = task->src_fb->width << 16;
+	if (task->src_h == UINT_MAX)
+		task->src_h = task->src_fb->height << 16;
+	if (task->dst_w == UINT_MAX)
+		task->dst_w = task->dst_fb->width << 16;
+	if (task->dst_h == UINT_MAX)
+		task->dst_h = task->dst_fb->height << 16;
+
+	if (task->src_x + task->src_w > (task->src_fb->width << 16) ||
+	    task->src_y + task->src_h > (task->src_fb->height << 16) ||
+	    task->dst_x + task->dst_w > (task->dst_fb->width << 16) ||
+	    task->dst_y + task->dst_h > (task->dst_fb->height << 16))
+		return -EINVAL;
+
+	if (!(fbproc->capabilities & DRM_FBPROC_CAP_CROP) &&
+	    (task->src_x || task->src_y || task->dst_x || task->dst_y))
+		return -EINVAL;
+
+	if (!(fbproc->capabilities & DRM_FBPROC_CAP_ROTATE) &&
+	    task->rotation != DRM_ROTATE_0)
+		return -EINVAL;
+
+	if (!(fbproc->capabilities & DRM_FBPROC_CAP_SCALE) &&
+	    (task->src_w != task->dst_w || task->src_h != task->dst_h))
+		return -EINVAL;
+
+	if (!(fbproc->capabilities & DRM_FBPROC_CAP_CONVERT) &&
+	    task->src_fb->pixel_format != task->dst_fb->pixel_format)
+		return -EINVAL;
+
+	if (!(fbproc->capabilities & DRM_FBPROC_CAP_FB_MODIFIERS) &&
+	    ((task->src_fb->flags & DRM_MODE_FB_MODIFIERS) ||
+	     (task->dst_fb->flags & DRM_MODE_FB_MODIFIERS)))
+		return -EINVAL;
+
+	if (fbproc->funcs->check)
+		ret = fbproc->funcs->check(fbproc, task);
+
+	return ret;
+}
+
+static int drm_fbproc_really_commit(struct drm_fbproc *fbproc,
+				     struct drm_fbproc_task *task)
+{
+	int ret = -ENOTSUPP;
+
+	if (fbproc->funcs->commit)
+		ret = fbproc->funcs->commit(fbproc, task);
+	if (ret == 0 && task->event) {
+		drm_fbproc_send_event(task->dev, fbproc, task->event);
+		/* ensure event won't be canceled on task free */
+		task->event = NULL;
+	}
+
+	drm_fbproc_task_free(fbproc, task);
+	return ret;
+}
+
+static int drm_fbproc_commit(struct drm_fbproc_task *task)
+{
+	struct drm_fbproc *fbproc = task->fbproc;
+
+	DRM_DEBUG_FBPROC("processing %p\n", task);
+
+	return drm_fbproc_really_commit(fbproc, task);
+}
+
+static void drm_fbproc_work(struct work_struct *work)
+{
+	struct drm_fbproc_task *task = container_of(work,
+					struct drm_fbproc_task, commit_work);
+	struct drm_fbproc *fbproc = task->fbproc;
+
+	drm_fbproc_really_commit(fbproc, task);
+}
+
+static int drm_fbproc_nonblocking_commit(struct drm_fbproc_task *task)
+{
+	DRM_DEBUG_FBPROC("nonblocking processing %p\n", task);
+
+	INIT_WORK(&task->commit_work, drm_fbproc_work);
+	schedule_work(&task->commit_work);
+
+	return 0;
+}
+
+/**
+ * drm_mode_fbproc_ioctl - perform operation on framebuffer processor object
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * Construct a fbproc task from the set of properties provided from the user
+ * and try to schedule it to framebuffer processor hardware.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_fbproc_ioctl(struct drm_device *dev, void *data,
+			  struct drm_file *file_priv)
+{
+	struct drm_mode_fbproc *arg = data;
+	uint32_t __user *props_ptr =
+		(uint32_t __user *)(unsigned long)(arg->props_ptr);
+	uint64_t __user *prop_values_ptr =
+		(uint64_t __user *)(unsigned long)(arg->prop_values_ptr);
+	struct drm_fbproc *fbproc;
+	struct drm_fbproc_task *task;
+	int ret = 0;
+	unsigned int i;
+
+	if (!drm_core_check_feature(dev, DRIVER_FBPROC))
+		return -EINVAL;
+
+	if (arg->flags & ~DRM_MODE_FBPROC_FLAGS)
+		return -EINVAL;
+
+	if (arg->reserved)
+		return -EINVAL;
+
+	/* can't test and expect an event at the same time. */
+	if ((arg->flags & DRM_MODE_FBPROC_TEST_ONLY) &&
+			(arg->flags & DRM_MODE_FBPROC_EVENT))
+		return -EINVAL;
+
+	fbproc = drm_fbproc_find(dev, arg->fbproc_id);
+	if (!fbproc)
+		return -ENOENT;
+
+	task = drm_fbproc_task_alloc(fbproc);
+	if (!task) {
+		ret = -ENOMEM;
+		goto free;
+	}
+
+	for (i = 0; i < arg->count_props; i++) {
+		uint32_t prop_id;
+		uint64_t prop_value;
+		struct drm_property *prop;
+
+		if (get_user(prop_id, props_ptr + i)) {
+			ret = -EFAULT;
+			goto free;
+		}
+
+		prop = drm_property_find(dev, prop_id);
+		if (!prop) {
+			ret = -ENOENT;
+			goto free;
+		}
+
+		if (copy_from_user(&prop_value, prop_values_ptr + i,
+				   sizeof(prop_value))) {
+			ret = -EFAULT;
+			goto free;
+		}
+
+		ret = drm_fbproc_set_property(task, prop, prop_value);
+		if (ret)
+			goto free;
+	}
+
+	if (arg->flags & DRM_MODE_FBPROC_EVENT) {
+		struct drm_pending_fbproc_event *e;
+
+		e = drm_fbproc_create_event(dev, file_priv, arg->user_data);
+		if (!e) {
+			ret = -ENOMEM;
+			goto free;
+		}
+		task->event = e;
+	}
+
+	ret = drm_fbproc_check_only(task);
+	if (ret)
+		goto free;
+	/*
+	 * Queue task for processing on the hardware. task object will be
+	 * then freed in the last step of drm_fbproc_really_commit()
+	 */
+	if (!(arg->flags & DRM_MODE_FBPROC_TEST_ONLY)) {
+		if (arg->flags & DRM_MODE_FBPROC_NONBLOCK)
+			ret = drm_fbproc_nonblocking_commit(task);
+		else
+			ret = drm_fbproc_commit(task);
+		goto unreference;
+	}
+free:
+	drm_fbproc_task_free(fbproc, task);
+unreference:
+	drm_mode_object_unreference(&fbproc->base);
+
+	return ret;
+}
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index bb51ee97956d..a818409d0a0d 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -621,6 +621,9 @@  static const struct drm_ioctl_desc drm_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATOMIC, drm_mode_atomic_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATEPROPBLOB, drm_mode_createblob_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROYPROPBLOB, drm_mode_destroyblob_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFBPROCRESOURCES, drm_mode_getfbproc_res, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFBPROC, drm_mode_getfbproc, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_FBPROC, drm_mode_fbproc_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 };
 
 #define DRM_CORE_IOCTL_COUNT	ARRAY_SIZE( drm_ioctls )
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 856c174bd730..e7061a794871 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -114,6 +114,9 @@  struct dma_buf_attachment;
  * VBL: used for verbose debug message in the vblank code
  *	  This is the category used by the DRM_DEBUG_VBL() macro.
  *
+ * FBPROC: used for verbose debug message in the fbproc code
+ *	  This is the category used by the DRM_DEBUG_FBPROC() macro.
+ *
  * Enabling verbose debug messages is done through the drm.debug parameter,
  * each category being enabled by a bit.
  *
@@ -133,6 +136,7 @@  struct dma_buf_attachment;
 #define DRM_UT_PRIME		0x08
 #define DRM_UT_ATOMIC		0x10
 #define DRM_UT_VBL		0x20
+#define DRM_UT_FBPROC		0x40
 
 extern __printf(2, 3)
 void drm_ut_debug_printk(const char *function_name,
@@ -158,6 +162,7 @@  void drm_err(const char *format, ...);
 #define DRIVER_RENDER			0x8000
 #define DRIVER_ATOMIC			0x10000
 #define DRIVER_KMS_LEGACY_CONTEXT	0x20000
+#define DRIVER_FBPROC			0x40000
 
 /***********************************************************************/
 /** \name Macros to make printk easier */
@@ -231,6 +236,11 @@  void drm_err(const char *format, ...);
 		if (unlikely(drm_debug & DRM_UT_VBL))			\
 			drm_ut_debug_printk(__func__, fmt, ##args);	\
 	} while (0)
+#define DRM_DEBUG_FBPROC(fmt, args...)					\
+	do {								\
+		if (unlikely(drm_debug & DRM_UT_FBPROC))		\
+			drm_ut_debug_printk(__func__, fmt, ##args);	\
+	} while (0)
 
 /*@}*/
 
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index b618b506b04d..e8bda245d299 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -292,9 +292,11 @@  struct drm_crtc;
 struct drm_connector;
 struct drm_encoder;
 struct drm_pending_vblank_event;
+struct drm_pending_fbproc_event;
 struct drm_plane;
 struct drm_bridge;
 struct drm_atomic_state;
+struct drm_fbproc;
 
 struct drm_crtc_helper_funcs;
 struct drm_encoder_helper_funcs;
@@ -1760,6 +1762,153 @@  struct drm_plane {
 	struct drm_property *zpos_property;
 };
 
+struct drm_fbproc_task;
+
+/**
+ * struct drm_fbproc_funcs - drm_fbproc control functions
+ */
+struct drm_fbproc_funcs {
+	/**
+	 * @task_alloc:
+	 *
+	 * This optional hook can be used by drivers that want to subclass struct
+	 * &drm_fbproc_task to be able to track their own driver-private global
+	 * task. If this hook is implemented, drivers must also implement
+	 * @task_free.
+	 *
+	 * RETURNS:
+	 *
+	 * A new &drm_fbproc_task on success or NULL on failure.
+	 */
+	struct drm_fbproc_task *(*task_alloc)(struct drm_fbproc *fbproc);
+
+	/**
+	 * @task_free:
+	 *
+	 * This hook needs driver private resources and the &drm_fbproc_task
+	 * itself.
+	 *
+	 * Drivers that implement this must call drm_fbproc_task_clear()
+	 * to release common resources.
+	 */
+	void (*task_free)(struct drm_fbproc *fbproc,
+			  struct drm_fbproc_task *task);
+
+	/**
+	 * @check:
+	 *
+	 * This is the optional hook to validate an fbproc task. This function
+	 * must reject any task which the hardware or driver doesn't support.
+	 * This includes but is of course not limited to:
+	 *
+	 *  - Checking that the framebuffers, scaling and placement
+	 *    requirements and so on are within the limits of the hardware.
+	 *
+	 *  - The driver does not need to repeat basic input validation like
+	 *    done in the drm_fbproc_check_only() function. The core does
+	 *    that before calling this hook.
+	 *
+	 * RETURNS:
+	 *
+	 * 0 on success or one of the below negative error codes:
+	 *
+	 *  - -EINVAL, if any of the above constraints are violated.
+	 */
+	int (*check)(struct drm_fbproc *fbproc,
+		     struct drm_fbproc_task *task);
+
+	/**
+	 * @commit:
+	 *
+	 * This is the main entry point to start framebuffer processing
+	 * in the hardware. The drm_fbproc_task has been already validated.
+	 *
+	 * RETURNS:
+	 *
+	 * 0 on success or negative error codes in case of failure.
+	 */
+	int (*commit)(struct drm_fbproc *fbproc,
+		      struct drm_fbproc_task *task);
+
+	/**
+	 * @get_property:
+	 *
+	 * Reads out the default value of the decoded driver-private property.
+	 * This is used to implement the MODE_GETPROPERTY IOCTL.
+	 *
+	 * This callback is optional if the driver does not support any
+	 * driver-private properties.
+	 *
+	 * RETURNS:
+	 *
+	 * 0 on success, -EINVAL if the property isn't implemented by the
+	 * driver.
+	 */
+
+	int (*get_property)(struct drm_fbproc *fbproc,
+			    struct drm_property *property, uint64_t *val);
+
+	/**
+	 * @set_property:
+	 *
+	 * Decode a driver-private property value and store the decoded value
+	 * into the passed-in task structure. Since the fbproc core decodes all
+	 * standardized properties (even for extensions beyond the core set of
+	 * properties which might not be implemented by all drivers) this
+	 * requires drivers to subclass the state structure.
+	 *
+	 * This callback is optional if the driver does not support any
+	 * driver-private atomic properties.
+	 *
+	 * RETURNS:
+	 *
+	 * 0 if the property has been found, -EINVAL if the property isn't
+	 * implemented by the driver. No other validation is allowed by the
+	 * driver. The core already checks that the property value is within
+	 * the range (integer, valid enum value, ...) the driver set when
+	 * registering the property.
+	 */
+	int (*set_property)(struct drm_fbproc *fbproc,
+			    struct drm_fbproc_task *task,
+			    struct drm_property *property, uint64_t val);
+};
+
+/**
+ * struct drm_fbproc - central DRM framebuffer processor control structure
+ * @dev: DRM device this plane belongs to
+ * @head: for list management
+ * @name: human readable name, can be overwritten by the driver
+ * @base: base mode object
+ * @index: position inside the mode_config.list, invariant over the lifetime
+ * @funcs: helper functions
+ * @capabilities: hardware capabilities
+ * @sequence: counter for processed tasks
+ * @src_format_types: array of supported source fb formats
+ * @src_format_count: number of elements in @src_format_types
+ * @properties: property tracking for this object
+ * @rotation_property: optional rotation property
+ */
+struct drm_fbproc {
+	struct drm_device *dev;
+	struct list_head head;
+
+	char *name;
+	struct drm_mode_object base;
+	unsigned int index;
+	const struct drm_fbproc_funcs *funcs;
+	unsigned int capabilities;
+	atomic_t sequence;
+
+	uint32_t *src_format_types;
+	unsigned int src_format_count;
+	uint32_t *dst_format_types;
+	unsigned int dst_format_count;
+
+	struct drm_object_properties properties;
+
+	struct drm_property *rotation_property;
+};
+
 /**
  * struct drm_bridge_funcs - drm_bridge control functions
  * @attach: Called during drm_bridge_attach
@@ -2059,6 +2208,36 @@  struct drm_atomic_state {
 	struct work_struct commit_work;
 };
 
+/**
+ */
+struct drm_fbproc_task {
+	struct drm_device *dev;
+	struct drm_fbproc *fbproc;
+
+	struct drm_framebuffer *src_fb;
+
+	/* Source values are 16.16 fixed point */
+	uint32_t src_x, src_y;
+	uint32_t src_h, src_w;
+
+	struct drm_framebuffer *dst_fb;
+
+	/* Destination values are 16.16 fixed point */
+	uint32_t dst_x, dst_y;
+	uint32_t dst_h, dst_w;
+
+	unsigned int rotation;
+
+	/**
+	 * @commit_work:
+	 *
+	 * Work item which can be used by the driver or helpers to execute the
+	 * commit without blocking.
+	 */
+	struct work_struct commit_work;
+
+	struct drm_pending_fbproc_event *event;
+};
 
 /**
  * struct drm_mode_set - new values for a CRTC config change
@@ -2452,6 +2631,9 @@  struct drm_mode_config {
 	int num_crtc;
 	struct list_head crtc_list;
 
+	int num_fbproc;
+	struct list_head fbproc_list;
+
 	struct list_head property_list;
 
 	int min_width, min_height;
@@ -2694,6 +2876,17 @@  struct drm_mode_config {
 	 */
 	struct drm_property *suggested_y_property;
 
+	struct drm_property *fbproc_src_fb;
+	struct drm_property *fbproc_src_x;
+	struct drm_property *fbproc_src_y;
+	struct drm_property *fbproc_src_w;
+	struct drm_property *fbproc_src_h;
+	struct drm_property *fbproc_dst_fb;
+	struct drm_property *fbproc_dst_x;
+	struct drm_property *fbproc_dst_y;
+	struct drm_property *fbproc_dst_w;
+	struct drm_property *fbproc_dst_h;
+
 	/* dumb ioctl parameters */
 	uint32_t preferred_depth, prefer_shadow;
 
@@ -2748,6 +2941,7 @@  struct drm_mode_config {
 #define obj_to_property(x) container_of(x, struct drm_property, base)
 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
+#define obj_to_fbproc(x) container_of(x, struct drm_fbproc, base)
 
 struct drm_prop_enum_list {
 	int type;
@@ -2866,6 +3060,12 @@  extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
 extern int drm_crtc_force_disable(struct drm_crtc *crtc);
 extern int drm_crtc_force_disable_all(struct drm_device *dev);
 
+extern int drm_fbproc_init(struct drm_device *dev, struct drm_fbproc *fbproc,
+		       const struct drm_fbproc_funcs *funcs, unsigned int caps,
+		       const uint32_t *src_fmts, unsigned int src_fmt_count,
+		       const uint32_t *dst_fmts, unsigned int dst_fmt_count,
+		       const char *name, ...);
+
 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
 
 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
@@ -3046,6 +3246,14 @@  static inline struct drm_property *drm_property_find(struct drm_device *dev,
 	return mo ? obj_to_property(mo) : NULL;
 }
 
+static inline struct drm_fbproc *drm_fbproc_find(struct drm_device *dev,
+		uint32_t id)
+{
+	struct drm_mode_object *mo;
+	mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_FBPROC);
+	return mo ? obj_to_fbproc(mo) : NULL;
+}
+
 /*
  * Extract a degamma/gamma LUT value provided by user and round it to the
  * precision supported by the hardware.
@@ -3162,6 +3370,9 @@  assert_drm_connector_list_read_locked(struct drm_mode_config *mode_config)
 	     &fb->head != (&(dev)->mode_config.fb_list);			\
 	     fb = list_next_entry(fb, head))
 
+#define drm_for_each_fbproc(fbproc, dev) \
+	list_for_each_entry(fbproc, &(dev)->mode_config.fbproc_list, head)
+
 /* drm_edid.c */
 bool drm_probe_ddc(struct i2c_adapter *adapter);
 struct edid *drm_get_edid(struct drm_connector *connector,
diff --git a/include/drm/drm_irq.h b/include/drm/drm_irq.h
index 2401b14d301f..1d77ac822106 100644
--- a/include/drm/drm_irq.h
+++ b/include/drm/drm_irq.h
@@ -29,6 +29,20 @@ 
 /**
  * struct drm_pending_vblank_event - pending vblank event tracking
  */
+struct drm_pending_fbproc_event {
+	/**
+	 * @base: Base structure for tracking pending DRM events.
+	 */
+	struct drm_pending_event base;
+	/**
+	 * @event: Actual event which will be sent to userspace.
+	 */
+	struct drm_event_fbproc event;
+};
+
+/**
+ * struct drm_pending_vblank_event - pending vblank event tracking
+ */
 struct drm_pending_vblank_event {
 	/**
 	 * @base: Base structure for tracking pending DRM events.
diff --git a/include/uapi/drm/drm.h b/include/uapi/drm/drm.h
index 452675fb55d9..90f455832d6d 100644
--- a/include/uapi/drm/drm.h
+++ b/include/uapi/drm/drm.h
@@ -812,6 +812,9 @@  extern "C" {
 #define DRM_IOCTL_MODE_ATOMIC		DRM_IOWR(0xBC, struct drm_mode_atomic)
 #define DRM_IOCTL_MODE_CREATEPROPBLOB	DRM_IOWR(0xBD, struct drm_mode_create_blob)
 #define DRM_IOCTL_MODE_DESTROYPROPBLOB	DRM_IOWR(0xBE, struct drm_mode_destroy_blob)
+#define DRM_IOCTL_MODE_GETFBPROCRESOURCES DRM_IOWR(0xBF, struct drm_mode_get_fbproc_res)
+#define DRM_IOCTL_MODE_GETFBPROC	DRM_IOWR(0xC0, struct drm_mode_get_fbproc)
+#define DRM_IOCTL_MODE_FBPROC		DRM_IOWR(0xC1, struct drm_mode_fbproc)
 
 /**
  * Device specific ioctls should only be in their respective headers
@@ -843,6 +846,7 @@  struct drm_event {
 
 #define DRM_EVENT_VBLANK 0x01
 #define DRM_EVENT_FLIP_COMPLETE 0x02
+#define DRM_EVENT_FBPROC_COMPLETE 0x03
 
 struct drm_event_vblank {
 	struct drm_event base;
@@ -853,6 +857,15 @@  struct drm_event_vblank {
 	__u32 reserved;
 };
 
+struct drm_event_fbproc {
+	struct drm_event base;
+	__u64 user_data;
+	__u32 tv_sec;
+	__u32 tv_usec;
+	__u32 sequence;
+	__u32 reserved;
+};
+
 /* typedef area */
 #ifndef __KERNEL__
 typedef struct drm_clip_rect drm_clip_rect_t;
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 49a72659b801..83e4c684be26 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -326,6 +326,21 @@  struct drm_mode_connector_set_property {
 	__u32 connector_id;
 };
 
+struct drm_mode_get_fbproc_res {
+	__u64 fbproc_id_ptr;
+	__u32 count_fbprocs;
+};
+
+struct drm_mode_get_fbproc {
+	__u32 fbproc_id;
+	__u32 capabilities;
+
+	__u32 src_format_count;
+	__u32 dst_format_count;
+	__u64 src_format_type_ptr;
+	__u64 dst_format_type_ptr;
+};
+
 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
@@ -334,6 +349,7 @@  struct drm_mode_connector_set_property {
 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
+#define DRM_MODE_OBJECT_FBPROC 0x88888888
 #define DRM_MODE_OBJECT_ANY 0
 
 struct drm_mode_obj_get_properties {
@@ -627,6 +643,29 @@  struct drm_mode_destroy_blob {
 	__u32 blob_id;
 };
 
+#define DRM_FBPROC_CAP_CROP		  0x01
+#define DRM_FBPROC_CAP_ROTATE		  0x02
+#define DRM_FBPROC_CAP_SCALE		  0x04
+#define DRM_FBPROC_CAP_CONVERT		  0x08
+#define DRM_FBPROC_CAP_FB_MODIFIERS	0x1000
+
+#define DRM_MODE_FBPROC_EVENT		0x01
+#define DRM_MODE_FBPROC_TEST_ONLY	0x02
+#define DRM_MODE_FBPROC_NONBLOCK	0x04
+
+#define DRM_MODE_FBPROC_FLAGS (DRM_MODE_FBPROC_EVENT |\
+		DRM_MODE_FBPROC_TEST_ONLY | DRM_MODE_FBPROC_NONBLOCK)
+
+struct drm_mode_fbproc {
+	__u32 fbproc_id;
+	__u32 flags;
+	__u32 count_props;
+	__u64 props_ptr;
+	__u64 prop_values_ptr;
+	__u64 reserved;
+	__u64 user_data;
+};
+
 #if defined(__cplusplus)
 }
 #endif