- struct drm_mode_config_funcs \*funcs;
Mode setting functions.
-Modeset Base Object Abstraction
-===============================
+Mode Configuration
-.. kernel-doc:: include/drm/drm_mode_object.h
- :internal:
+KMS Core Structures and Functions
+=================================
-.. kernel-doc:: drivers/gpu/drm/drm_mode_object.c
+.. kernel-doc:: drivers/gpu/drm/drm_mode_config.c
:export:
-KMS Data Structures
-===================
-
-.. kernel-doc:: include/drm/drm_crtc.h
+.. kernel-doc:: include/drm/drm_mode_config.h
:internal:
-KMS API Functions
-=================
+Modeset Base Object Abstraction
+===============================
-.. kernel-doc:: drivers/gpu/drm/drm_crtc.c
+.. kernel-doc:: include/drm/drm_mode_object.h
+ :internal:
+
+.. kernel-doc:: drivers/gpu/drm/drm_mode_object.c
:export:
Atomic Mode Setting Function Reference
.. kernel-doc:: include/drm/drm_atomic.h
:internal:
+CRTC Abstraction
+================
+
+.. kernel-doc:: drivers/gpu/drm/drm_crtc.c
+ :export:
+
+.. kernel-doc:: include/drm/drm_crtc.h
+ :internal:
+
Frame Buffer Abstraction
========================
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
#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
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;
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;
}
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
}
/**
- * 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
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,
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,
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);
--- /dev/null
+/*
+ * 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);
#include <linux/i2c.h>
#include <linux/spinlock.h>
#include <linux/types.h>
-#include <linux/idr.h>
#include <linux/fb.h>
#include <linux/hdmi.h>
#include <linux/media-bus-format.h>
#include <drm/drm_blend.h>
#include <drm/drm_color_mgmt.h>
#include <drm/drm_debugfs_crc.h>
+#include <drm/drm_mode_config.h>
struct drm_device;
struct drm_mode_set;
size_t num_connectors;
};
-/**
- * struct drm_mode_config_funcs - basic driver provided mode setting functions
- *
- * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
- * involve drivers.
- */
-struct drm_mode_config_funcs {
- /**
- * @fb_create:
- *
- * Create a new framebuffer object. The core does basic checks on the
- * requested metadata, but most of that is left to the driver. See
- * struct &drm_mode_fb_cmd2 for details.
- *
- * If the parameters are deemed valid and the backing storage objects in
- * the underlying memory manager all exist, then the driver allocates
- * a new &drm_framebuffer structure, subclassed to contain
- * driver-specific information (like the internal native buffer object
- * references). It also needs to fill out all relevant metadata, which
- * should be done by calling drm_helper_mode_fill_fb_struct().
- *
- * The initialization is finalized by calling drm_framebuffer_init(),
- * which registers the framebuffer and makes it accessible to other
- * threads.
- *
- * RETURNS:
- *
- * A new framebuffer with an initial reference count of 1 or a negative
- * error code encoded with ERR_PTR().
- */
- struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
- struct drm_file *file_priv,
- const struct drm_mode_fb_cmd2 *mode_cmd);
-
- /**
- * @output_poll_changed:
- *
- * Callback used by helpers to inform the driver of output configuration
- * changes.
- *
- * Drivers implementing fbdev emulation with the helpers can call
- * drm_fb_helper_hotplug_changed from this hook to inform the fbdev
- * helper of output changes.
- *
- * FIXME:
- *
- * Except that there's no vtable for device-level helper callbacks
- * there's no reason this is a core function.
- */
- void (*output_poll_changed)(struct drm_device *dev);
-
- /**
- * @atomic_check:
- *
- * This is the only hook to validate an atomic modeset update. This
- * function must reject any modeset and state changes which the hardware
- * or driver doesn't support. This includes but is of course not limited
- * to:
- *
- * - Checking that the modes, framebuffers, scaling and placement
- * requirements and so on are within the limits of the hardware.
- *
- * - Checking that any hidden shared resources are not oversubscribed.
- * This can be shared PLLs, shared lanes, overall memory bandwidth,
- * display fifo space (where shared between planes or maybe even
- * CRTCs).
- *
- * - Checking that virtualized resources exported to userspace are not
- * oversubscribed. For various reasons it can make sense to expose
- * more planes, crtcs or encoders than which are physically there. One
- * example is dual-pipe operations (which generally should be hidden
- * from userspace if when lockstepped in hardware, exposed otherwise),
- * where a plane might need 1 hardware plane (if it's just on one
- * pipe), 2 hardware planes (when it spans both pipes) or maybe even
- * shared a hardware plane with a 2nd plane (if there's a compatible
- * plane requested on the area handled by the other pipe).
- *
- * - Check that any transitional state is possible and that if
- * requested, the update can indeed be done in the vblank period
- * without temporarily disabling some functions.
- *
- * - Check any other constraints the driver or hardware might have.
- *
- * - This callback also needs to correctly fill out the &drm_crtc_state
- * in this update to make sure that drm_atomic_crtc_needs_modeset()
- * reflects the nature of the possible update and returns true if and
- * only if the update cannot be applied without tearing within one
- * vblank on that CRTC. The core uses that information to reject
- * updates which require a full modeset (i.e. blanking the screen, or
- * at least pausing updates for a substantial amount of time) if
- * userspace has disallowed that in its request.
- *
- * - The driver also does not need to repeat basic input validation
- * like done for the corresponding legacy entry points. The core does
- * that before calling this hook.
- *
- * See the documentation of @atomic_commit for an exhaustive list of
- * error conditions which don't have to be checked at the
- * ->atomic_check() stage?
- *
- * See the documentation for struct &drm_atomic_state for how exactly
- * an atomic modeset update is described.
- *
- * Drivers using the atomic helpers can implement this hook using
- * drm_atomic_helper_check(), or one of the exported sub-functions of
- * it.
- *
- * RETURNS:
- *
- * 0 on success or one of the below negative error codes:
- *
- * - -EINVAL, if any of the above constraints are violated.
- *
- * - -EDEADLK, when returned from an attempt to acquire an additional
- * &drm_modeset_lock through drm_modeset_lock().
- *
- * - -ENOMEM, if allocating additional state sub-structures failed due
- * to lack of memory.
- *
- * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted.
- * This can either be due to a pending signal, or because the driver
- * needs to completely bail out to recover from an exceptional
- * situation like a GPU hang. From a userspace point all errors are
- * treated equally.
- */
- int (*atomic_check)(struct drm_device *dev,
- struct drm_atomic_state *state);
-
- /**
- * @atomic_commit:
- *
- * This is the only hook to commit an atomic modeset update. The core
- * guarantees that @atomic_check has been called successfully before
- * calling this function, and that nothing has been changed in the
- * interim.
- *
- * See the documentation for struct &drm_atomic_state for how exactly
- * an atomic modeset update is described.
- *
- * Drivers using the atomic helpers can implement this hook using
- * drm_atomic_helper_commit(), or one of the exported sub-functions of
- * it.
- *
- * Nonblocking commits (as indicated with the nonblock parameter) must
- * do any preparatory work which might result in an unsuccessful commit
- * in the context of this callback. The only exceptions are hardware
- * errors resulting in -EIO. But even in that case the driver must
- * ensure that the display pipe is at least running, to avoid
- * compositors crashing when pageflips don't work. Anything else,
- * specifically committing the update to the hardware, should be done
- * without blocking the caller. For updates which do not require a
- * modeset this must be guaranteed.
- *
- * The driver must wait for any pending rendering to the new
- * framebuffers to complete before executing the flip. It should also
- * wait for any pending rendering from other drivers if the underlying
- * buffer is a shared dma-buf. Nonblocking commits must not wait for
- * rendering in the context of this callback.
- *
- * An application can request to be notified when the atomic commit has
- * completed. These events are per-CRTC and can be distinguished by the
- * CRTC index supplied in &drm_event to userspace.
- *
- * The drm core will supply a struct &drm_event in the event
- * member of each CRTC's &drm_crtc_state structure. See the
- * documentation for &drm_crtc_state for more details about the precise
- * semantics of this event.
- *
- * NOTE:
- *
- * Drivers are not allowed to shut down any display pipe successfully
- * enabled through an atomic commit on their own. Doing so can result in
- * compositors crashing if a page flip is suddenly rejected because the
- * pipe is off.
- *
- * RETURNS:
- *
- * 0 on success or one of the below negative error codes:
- *
- * - -EBUSY, if a nonblocking updated is requested and there is
- * an earlier updated pending. Drivers are allowed to support a queue
- * of outstanding updates, but currently no driver supports that.
- * Note that drivers must wait for preceding updates to complete if a
- * synchronous update is requested, they are not allowed to fail the
- * commit in that case.
- *
- * - -ENOMEM, if the driver failed to allocate memory. Specifically
- * this can happen when trying to pin framebuffers, which must only
- * be done when committing the state.
- *
- * - -ENOSPC, as a refinement of the more generic -ENOMEM to indicate
- * that the driver has run out of vram, iommu space or similar GPU
- * address space needed for framebuffer.
- *
- * - -EIO, if the hardware completely died.
- *
- * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted.
- * This can either be due to a pending signal, or because the driver
- * needs to completely bail out to recover from an exceptional
- * situation like a GPU hang. From a userspace point of view all errors are
- * treated equally.
- *
- * This list is exhaustive. Specifically this hook is not allowed to
- * return -EINVAL (any invalid requests should be caught in
- * @atomic_check) or -EDEADLK (this function must not acquire
- * additional modeset locks).
- */
- int (*atomic_commit)(struct drm_device *dev,
- struct drm_atomic_state *state,
- bool nonblock);
-
- /**
- * @atomic_state_alloc:
- *
- * This optional hook can be used by drivers that want to subclass struct
- * &drm_atomic_state to be able to track their own driver-private global
- * state easily. If this hook is implemented, drivers must also
- * implement @atomic_state_clear and @atomic_state_free.
- *
- * RETURNS:
- *
- * A new &drm_atomic_state on success or NULL on failure.
- */
- struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev);
-
- /**
- * @atomic_state_clear:
- *
- * This hook must clear any driver private state duplicated into the
- * passed-in &drm_atomic_state. This hook is called when the caller
- * encountered a &drm_modeset_lock deadlock and needs to drop all
- * already acquired locks as part of the deadlock avoidance dance
- * implemented in drm_modeset_lock_backoff().
- *
- * Any duplicated state must be invalidated since a concurrent atomic
- * update might change it, and the drm atomic interfaces always apply
- * updates as relative changes to the current state.
- *
- * Drivers that implement this must call drm_atomic_state_default_clear()
- * to clear common state.
- */
- void (*atomic_state_clear)(struct drm_atomic_state *state);
-
- /**
- * @atomic_state_free:
- *
- * This hook needs driver private resources and the &drm_atomic_state
- * itself. Note that the core first calls drm_atomic_state_clear() to
- * avoid code duplicate between the clear and free hooks.
- *
- * Drivers that implement this must call drm_atomic_state_default_free()
- * to release common resources.
- */
- void (*atomic_state_free)(struct drm_atomic_state *state);
-};
-
-/**
- * struct drm_mode_config - Mode configuration control structure
- * @mutex: mutex protecting KMS related lists and structures
- * @connection_mutex: ww mutex protecting connector state and routing
- * @acquire_ctx: global implicit acquire context used by atomic drivers for
- * legacy IOCTLs
- * @fb_lock: mutex to protect fb state and lists
- * @num_fb: number of fbs available
- * @fb_list: list of framebuffers available
- * @num_encoder: number of encoders on this device
- * @encoder_list: list of encoder objects
- * @num_overlay_plane: number of overlay planes on this device
- * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
- * @plane_list: list of plane objects
- * @num_crtc: number of CRTCs on this device
- * @crtc_list: list of CRTC objects
- * @property_list: list of property objects
- * @min_width: minimum pixel width on this device
- * @min_height: minimum pixel height on this device
- * @max_width: maximum pixel width on this device
- * @max_height: maximum pixel height on this device
- * @funcs: core driver provided mode setting functions
- * @fb_base: base address of the framebuffer
- * @poll_enabled: track polling support for this device
- * @poll_running: track polling status for this device
- * @delayed_event: track delayed poll uevent deliver for this device
- * @output_poll_work: delayed work for polling in process context
- * @property_blob_list: list of all the blob property objects
- * @blob_lock: mutex for blob property allocation and management
- * @*_property: core property tracking
- * @preferred_depth: preferred RBG pixel depth, used by fb helpers
- * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
- * @cursor_width: hint to userspace for max cursor width
- * @cursor_height: hint to userspace for max cursor height
- * @helper_private: mid-layer private data
- *
- * Core mode resource tracking structure. All CRTC, encoders, and connectors
- * enumerated by the driver are added here, as are global properties. Some
- * global restrictions are also here, e.g. dimension restrictions.
- */
-struct drm_mode_config {
- struct mutex mutex; /* protects configuration (mode lists etc.) */
- struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
- struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
-
- /**
- * @idr_mutex:
- *
- * Mutex for KMS ID allocation and management. Protects both @crtc_idr
- * and @tile_idr.
- */
- struct mutex idr_mutex;
-
- /**
- * @crtc_idr:
- *
- * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc,
- * connector, modes - just makes life easier to have only one.
- */
- struct idr crtc_idr;
-
- /**
- * @tile_idr:
- *
- * Use this idr for allocating new IDs for tiled sinks like use in some
- * high-res DP MST screens.
- */
- struct idr tile_idr;
-
- struct mutex fb_lock; /* proctects global and per-file fb lists */
- int num_fb;
- struct list_head fb_list;
-
- /**
- * @num_connector: Number of connectors on this device.
- */
- int num_connector;
- /**
- * @connector_ida: ID allocator for connector indices.
- */
- struct ida connector_ida;
- /**
- * @connector_list: List of connector objects.
- */
- struct list_head connector_list;
- int num_encoder;
- struct list_head encoder_list;
-
- /*
- * 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;
- struct list_head crtc_list;
-
- struct list_head property_list;
-
- int min_width, min_height;
- int max_width, max_height;
- const struct drm_mode_config_funcs *funcs;
- resource_size_t fb_base;
-
- /* output poll support */
- bool poll_enabled;
- bool poll_running;
- bool delayed_event;
- struct delayed_work output_poll_work;
-
- struct mutex blob_lock;
-
- /* pointers to standard properties */
- struct list_head property_blob_list;
- /**
- * @edid_property: Default connector property to hold the EDID of the
- * currently connected sink, if any.
- */
- struct drm_property *edid_property;
- /**
- * @dpms_property: Default connector property to control the
- * connector's DPMS state.
- */
- struct drm_property *dpms_property;
- /**
- * @path_property: Default connector property to hold the DP MST path
- * for the port.
- */
- struct drm_property *path_property;
- /**
- * @tile_property: Default connector property to store the tile
- * position of a tiled screen, for sinks which need to be driven with
- * multiple CRTCs.
- */
- struct drm_property *tile_property;
- /**
- * @plane_type_property: Default plane property to differentiate
- * CURSOR, PRIMARY and OVERLAY legacy uses of planes.
- */
- struct drm_property *plane_type_property;
- /**
- * @prop_src_x: Default atomic plane property for the plane source
- * position in the connected &drm_framebuffer.
- */
- struct drm_property *prop_src_x;
- /**
- * @prop_src_y: Default atomic plane property for the plane source
- * position in the connected &drm_framebuffer.
- */
- struct drm_property *prop_src_y;
- /**
- * @prop_src_w: Default atomic plane property for the plane source
- * position in the connected &drm_framebuffer.
- */
- struct drm_property *prop_src_w;
- /**
- * @prop_src_h: Default atomic plane property for the plane source
- * position in the connected &drm_framebuffer.
- */
- struct drm_property *prop_src_h;
- /**
- * @prop_crtc_x: Default atomic plane property for the plane destination
- * position in the &drm_crtc is is being shown on.
- */
- struct drm_property *prop_crtc_x;
- /**
- * @prop_crtc_y: Default atomic plane property for the plane destination
- * position in the &drm_crtc is is being shown on.
- */
- struct drm_property *prop_crtc_y;
- /**
- * @prop_crtc_w: Default atomic plane property for the plane destination
- * position in the &drm_crtc is is being shown on.
- */
- struct drm_property *prop_crtc_w;
- /**
- * @prop_crtc_h: Default atomic plane property for the plane destination
- * position in the &drm_crtc is is being shown on.
- */
- struct drm_property *prop_crtc_h;
- /**
- * @prop_fb_id: Default atomic plane property to specify the
- * &drm_framebuffer.
- */
- struct drm_property *prop_fb_id;
- /**
- * @prop_crtc_id: Default atomic plane property to specify the
- * &drm_crtc.
- */
- struct drm_property *prop_crtc_id;
- /**
- * @prop_active: Default atomic CRTC property to control the active
- * state, which is the simplified implementation for DPMS in atomic
- * drivers.
- */
- struct drm_property *prop_active;
- /**
- * @prop_mode_id: Default atomic CRTC property to set the mode for a
- * CRTC. A 0 mode implies that the CRTC is entirely disabled - all
- * connectors must be of and active must be set to disabled, too.
- */
- struct drm_property *prop_mode_id;
-
- /**
- * @dvi_i_subconnector_property: Optional DVI-I property to
- * differentiate between analog or digital mode.
- */
- struct drm_property *dvi_i_subconnector_property;
- /**
- * @dvi_i_select_subconnector_property: Optional DVI-I property to
- * select between analog or digital mode.
- */
- struct drm_property *dvi_i_select_subconnector_property;
-
- /**
- * @tv_subconnector_property: Optional TV property to differentiate
- * between different TV connector types.
- */
- struct drm_property *tv_subconnector_property;
- /**
- * @tv_select_subconnector_property: Optional TV property to select
- * between different TV connector types.
- */
- struct drm_property *tv_select_subconnector_property;
- /**
- * @tv_mode_property: Optional TV property to select
- * the output TV mode.
- */
- struct drm_property *tv_mode_property;
- /**
- * @tv_left_margin_property: Optional TV property to set the left
- * margin.
- */
- struct drm_property *tv_left_margin_property;
- /**
- * @tv_right_margin_property: Optional TV property to set the right
- * margin.
- */
- struct drm_property *tv_right_margin_property;
- /**
- * @tv_top_margin_property: Optional TV property to set the right
- * margin.
- */
- struct drm_property *tv_top_margin_property;
- /**
- * @tv_bottom_margin_property: Optional TV property to set the right
- * margin.
- */
- struct drm_property *tv_bottom_margin_property;
- /**
- * @tv_brightness_property: Optional TV property to set the
- * brightness.
- */
- struct drm_property *tv_brightness_property;
- /**
- * @tv_contrast_property: Optional TV property to set the
- * contrast.
- */
- struct drm_property *tv_contrast_property;
- /**
- * @tv_flicker_reduction_property: Optional TV property to control the
- * flicker reduction mode.
- */
- struct drm_property *tv_flicker_reduction_property;
- /**
- * @tv_overscan_property: Optional TV property to control the overscan
- * setting.
- */
- struct drm_property *tv_overscan_property;
- /**
- * @tv_saturation_property: Optional TV property to set the
- * saturation.
- */
- struct drm_property *tv_saturation_property;
- /**
- * @tv_hue_property: Optional TV property to set the hue.
- */
- struct drm_property *tv_hue_property;
-
- /**
- * @scaling_mode_property: Optional connector property to control the
- * upscaling, mostly used for built-in panels.
- */
- struct drm_property *scaling_mode_property;
- /**
- * @aspect_ratio_property: Optional connector property to control the
- * HDMI infoframe aspect ratio setting.
- */
- struct drm_property *aspect_ratio_property;
- /**
- * @degamma_lut_property: Optional CRTC property to set the LUT used to
- * convert the framebuffer's colors to linear gamma.
- */
- struct drm_property *degamma_lut_property;
- /**
- * @degamma_lut_size_property: Optional CRTC property for the size of
- * the degamma LUT as supported by the driver (read-only).
- */
- struct drm_property *degamma_lut_size_property;
- /**
- * @ctm_property: Optional CRTC property to set the
- * matrix used to convert colors after the lookup in the
- * degamma LUT.
- */
- struct drm_property *ctm_property;
- /**
- * @gamma_lut_property: Optional CRTC property to set the LUT used to
- * convert the colors, after the CTM matrix, to the gamma space of the
- * connected screen.
- */
- struct drm_property *gamma_lut_property;
- /**
- * @gamma_lut_size_property: Optional CRTC property for the size of the
- * gamma LUT as supported by the driver (read-only).
- */
- struct drm_property *gamma_lut_size_property;
-
- /**
- * @suggested_x_property: Optional connector property with a hint for
- * the position of the output on the host's screen.
- */
- struct drm_property *suggested_x_property;
- /**
- * @suggested_y_property: Optional connector property with a hint for
- * the position of the output on the host's screen.
- */
- struct drm_property *suggested_y_property;
-
- /* dumb ioctl parameters */
- uint32_t preferred_depth, prefer_shadow;
-
- /**
- * @async_page_flip: Does this device support async flips on the primary
- * plane?
- */
- bool async_page_flip;
-
- /**
- * @allow_fb_modifiers:
- *
- * Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call.
- */
- bool allow_fb_modifiers;
-
- /* cursor size */
- uint32_t cursor_width, cursor_height;
-
- struct drm_mode_config_helper_funcs *helper_private;
-};
-
#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
extern __printf(6, 7)
extern int drm_crtc_force_disable(struct drm_crtc *crtc);
extern int drm_crtc_force_disable_all(struct drm_device *dev);
-extern void drm_mode_config_init(struct drm_device *dev);
-extern void drm_mode_config_reset(struct drm_device *dev);
-extern void drm_mode_config_cleanup(struct drm_device *dev);
-
extern int drm_mode_set_config_internal(struct drm_mode_set *set);
extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
--- /dev/null
+/*
+ * 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.
+ */
+
+#ifndef __DRM_MODE_CONFIG_H__
+#define __DRM_MODE_CONFIG_H__
+
+#include <linux/mutex.h>
+#include <linux/types.h>
+#include <linux/idr.h>
+#include <linux/workqueue.h>
+
+#include <drm/drm_modeset_lock.h>
+
+struct drm_file;
+struct drm_device;
+struct drm_atomic_state;
+struct drm_mode_fb_cmd2;
+
+/**
+ * struct drm_mode_config_funcs - basic driver provided mode setting functions
+ *
+ * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
+ * involve drivers.
+ */
+struct drm_mode_config_funcs {
+ /**
+ * @fb_create:
+ *
+ * Create a new framebuffer object. The core does basic checks on the
+ * requested metadata, but most of that is left to the driver. See
+ * struct &drm_mode_fb_cmd2 for details.
+ *
+ * If the parameters are deemed valid and the backing storage objects in
+ * the underlying memory manager all exist, then the driver allocates
+ * a new &drm_framebuffer structure, subclassed to contain
+ * driver-specific information (like the internal native buffer object
+ * references). It also needs to fill out all relevant metadata, which
+ * should be done by calling drm_helper_mode_fill_fb_struct().
+ *
+ * The initialization is finalized by calling drm_framebuffer_init(),
+ * which registers the framebuffer and makes it accessible to other
+ * threads.
+ *
+ * RETURNS:
+ *
+ * A new framebuffer with an initial reference count of 1 or a negative
+ * error code encoded with ERR_PTR().
+ */
+ struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
+ struct drm_file *file_priv,
+ const struct drm_mode_fb_cmd2 *mode_cmd);
+
+ /**
+ * @output_poll_changed:
+ *
+ * Callback used by helpers to inform the driver of output configuration
+ * changes.
+ *
+ * Drivers implementing fbdev emulation with the helpers can call
+ * drm_fb_helper_hotplug_changed from this hook to inform the fbdev
+ * helper of output changes.
+ *
+ * FIXME:
+ *
+ * Except that there's no vtable for device-level helper callbacks
+ * there's no reason this is a core function.
+ */
+ void (*output_poll_changed)(struct drm_device *dev);
+
+ /**
+ * @atomic_check:
+ *
+ * This is the only hook to validate an atomic modeset update. This
+ * function must reject any modeset and state changes which the hardware
+ * or driver doesn't support. This includes but is of course not limited
+ * to:
+ *
+ * - Checking that the modes, framebuffers, scaling and placement
+ * requirements and so on are within the limits of the hardware.
+ *
+ * - Checking that any hidden shared resources are not oversubscribed.
+ * This can be shared PLLs, shared lanes, overall memory bandwidth,
+ * display fifo space (where shared between planes or maybe even
+ * CRTCs).
+ *
+ * - Checking that virtualized resources exported to userspace are not
+ * oversubscribed. For various reasons it can make sense to expose
+ * more planes, crtcs or encoders than which are physically there. One
+ * example is dual-pipe operations (which generally should be hidden
+ * from userspace if when lockstepped in hardware, exposed otherwise),
+ * where a plane might need 1 hardware plane (if it's just on one
+ * pipe), 2 hardware planes (when it spans both pipes) or maybe even
+ * shared a hardware plane with a 2nd plane (if there's a compatible
+ * plane requested on the area handled by the other pipe).
+ *
+ * - Check that any transitional state is possible and that if
+ * requested, the update can indeed be done in the vblank period
+ * without temporarily disabling some functions.
+ *
+ * - Check any other constraints the driver or hardware might have.
+ *
+ * - This callback also needs to correctly fill out the &drm_crtc_state
+ * in this update to make sure that drm_atomic_crtc_needs_modeset()
+ * reflects the nature of the possible update and returns true if and
+ * only if the update cannot be applied without tearing within one
+ * vblank on that CRTC. The core uses that information to reject
+ * updates which require a full modeset (i.e. blanking the screen, or
+ * at least pausing updates for a substantial amount of time) if
+ * userspace has disallowed that in its request.
+ *
+ * - The driver also does not need to repeat basic input validation
+ * like done for the corresponding legacy entry points. The core does
+ * that before calling this hook.
+ *
+ * See the documentation of @atomic_commit for an exhaustive list of
+ * error conditions which don't have to be checked at the
+ * ->atomic_check() stage?
+ *
+ * See the documentation for struct &drm_atomic_state for how exactly
+ * an atomic modeset update is described.
+ *
+ * Drivers using the atomic helpers can implement this hook using
+ * drm_atomic_helper_check(), or one of the exported sub-functions of
+ * it.
+ *
+ * RETURNS:
+ *
+ * 0 on success or one of the below negative error codes:
+ *
+ * - -EINVAL, if any of the above constraints are violated.
+ *
+ * - -EDEADLK, when returned from an attempt to acquire an additional
+ * &drm_modeset_lock through drm_modeset_lock().
+ *
+ * - -ENOMEM, if allocating additional state sub-structures failed due
+ * to lack of memory.
+ *
+ * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted.
+ * This can either be due to a pending signal, or because the driver
+ * needs to completely bail out to recover from an exceptional
+ * situation like a GPU hang. From a userspace point all errors are
+ * treated equally.
+ */
+ int (*atomic_check)(struct drm_device *dev,
+ struct drm_atomic_state *state);
+
+ /**
+ * @atomic_commit:
+ *
+ * This is the only hook to commit an atomic modeset update. The core
+ * guarantees that @atomic_check has been called successfully before
+ * calling this function, and that nothing has been changed in the
+ * interim.
+ *
+ * See the documentation for struct &drm_atomic_state for how exactly
+ * an atomic modeset update is described.
+ *
+ * Drivers using the atomic helpers can implement this hook using
+ * drm_atomic_helper_commit(), or one of the exported sub-functions of
+ * it.
+ *
+ * Nonblocking commits (as indicated with the nonblock parameter) must
+ * do any preparatory work which might result in an unsuccessful commit
+ * in the context of this callback. The only exceptions are hardware
+ * errors resulting in -EIO. But even in that case the driver must
+ * ensure that the display pipe is at least running, to avoid
+ * compositors crashing when pageflips don't work. Anything else,
+ * specifically committing the update to the hardware, should be done
+ * without blocking the caller. For updates which do not require a
+ * modeset this must be guaranteed.
+ *
+ * The driver must wait for any pending rendering to the new
+ * framebuffers to complete before executing the flip. It should also
+ * wait for any pending rendering from other drivers if the underlying
+ * buffer is a shared dma-buf. Nonblocking commits must not wait for
+ * rendering in the context of this callback.
+ *
+ * An application can request to be notified when the atomic commit has
+ * completed. These events are per-CRTC and can be distinguished by the
+ * CRTC index supplied in &drm_event to userspace.
+ *
+ * The drm core will supply a struct &drm_event in the event
+ * member of each CRTC's &drm_crtc_state structure. See the
+ * documentation for &drm_crtc_state for more details about the precise
+ * semantics of this event.
+ *
+ * NOTE:
+ *
+ * Drivers are not allowed to shut down any display pipe successfully
+ * enabled through an atomic commit on their own. Doing so can result in
+ * compositors crashing if a page flip is suddenly rejected because the
+ * pipe is off.
+ *
+ * RETURNS:
+ *
+ * 0 on success or one of the below negative error codes:
+ *
+ * - -EBUSY, if a nonblocking updated is requested and there is
+ * an earlier updated pending. Drivers are allowed to support a queue
+ * of outstanding updates, but currently no driver supports that.
+ * Note that drivers must wait for preceding updates to complete if a
+ * synchronous update is requested, they are not allowed to fail the
+ * commit in that case.
+ *
+ * - -ENOMEM, if the driver failed to allocate memory. Specifically
+ * this can happen when trying to pin framebuffers, which must only
+ * be done when committing the state.
+ *
+ * - -ENOSPC, as a refinement of the more generic -ENOMEM to indicate
+ * that the driver has run out of vram, iommu space or similar GPU
+ * address space needed for framebuffer.
+ *
+ * - -EIO, if the hardware completely died.
+ *
+ * - -EINTR, -EAGAIN or -ERESTARTSYS, if the IOCTL should be restarted.
+ * This can either be due to a pending signal, or because the driver
+ * needs to completely bail out to recover from an exceptional
+ * situation like a GPU hang. From a userspace point of view all errors are
+ * treated equally.
+ *
+ * This list is exhaustive. Specifically this hook is not allowed to
+ * return -EINVAL (any invalid requests should be caught in
+ * @atomic_check) or -EDEADLK (this function must not acquire
+ * additional modeset locks).
+ */
+ int (*atomic_commit)(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool nonblock);
+
+ /**
+ * @atomic_state_alloc:
+ *
+ * This optional hook can be used by drivers that want to subclass struct
+ * &drm_atomic_state to be able to track their own driver-private global
+ * state easily. If this hook is implemented, drivers must also
+ * implement @atomic_state_clear and @atomic_state_free.
+ *
+ * RETURNS:
+ *
+ * A new &drm_atomic_state on success or NULL on failure.
+ */
+ struct drm_atomic_state *(*atomic_state_alloc)(struct drm_device *dev);
+
+ /**
+ * @atomic_state_clear:
+ *
+ * This hook must clear any driver private state duplicated into the
+ * passed-in &drm_atomic_state. This hook is called when the caller
+ * encountered a &drm_modeset_lock deadlock and needs to drop all
+ * already acquired locks as part of the deadlock avoidance dance
+ * implemented in drm_modeset_lock_backoff().
+ *
+ * Any duplicated state must be invalidated since a concurrent atomic
+ * update might change it, and the drm atomic interfaces always apply
+ * updates as relative changes to the current state.
+ *
+ * Drivers that implement this must call drm_atomic_state_default_clear()
+ * to clear common state.
+ */
+ void (*atomic_state_clear)(struct drm_atomic_state *state);
+
+ /**
+ * @atomic_state_free:
+ *
+ * This hook needs driver private resources and the &drm_atomic_state
+ * itself. Note that the core first calls drm_atomic_state_clear() to
+ * avoid code duplicate between the clear and free hooks.
+ *
+ * Drivers that implement this must call drm_atomic_state_default_free()
+ * to release common resources.
+ */
+ void (*atomic_state_free)(struct drm_atomic_state *state);
+};
+
+/**
+ * struct drm_mode_config - Mode configuration control structure
+ * @mutex: mutex protecting KMS related lists and structures
+ * @connection_mutex: ww mutex protecting connector state and routing
+ * @acquire_ctx: global implicit acquire context used by atomic drivers for
+ * legacy IOCTLs
+ * @fb_lock: mutex to protect fb state and lists
+ * @num_fb: number of fbs available
+ * @fb_list: list of framebuffers available
+ * @num_encoder: number of encoders on this device
+ * @encoder_list: list of encoder objects
+ * @num_overlay_plane: number of overlay planes on this device
+ * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
+ * @plane_list: list of plane objects
+ * @num_crtc: number of CRTCs on this device
+ * @crtc_list: list of CRTC objects
+ * @property_list: list of property objects
+ * @min_width: minimum pixel width on this device
+ * @min_height: minimum pixel height on this device
+ * @max_width: maximum pixel width on this device
+ * @max_height: maximum pixel height on this device
+ * @funcs: core driver provided mode setting functions
+ * @fb_base: base address of the framebuffer
+ * @poll_enabled: track polling support for this device
+ * @poll_running: track polling status for this device
+ * @delayed_event: track delayed poll uevent deliver for this device
+ * @output_poll_work: delayed work for polling in process context
+ * @property_blob_list: list of all the blob property objects
+ * @blob_lock: mutex for blob property allocation and management
+ * @*_property: core property tracking
+ * @preferred_depth: preferred RBG pixel depth, used by fb helpers
+ * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
+ * @cursor_width: hint to userspace for max cursor width
+ * @cursor_height: hint to userspace for max cursor height
+ * @helper_private: mid-layer private data
+ *
+ * Core mode resource tracking structure. All CRTC, encoders, and connectors
+ * enumerated by the driver are added here, as are global properties. Some
+ * global restrictions are also here, e.g. dimension restrictions.
+ */
+struct drm_mode_config {
+ struct mutex mutex; /* protects configuration (mode lists etc.) */
+ struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
+ struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
+
+ /**
+ * @idr_mutex:
+ *
+ * Mutex for KMS ID allocation and management. Protects both @crtc_idr
+ * and @tile_idr.
+ */
+ struct mutex idr_mutex;
+
+ /**
+ * @crtc_idr:
+ *
+ * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc,
+ * connector, modes - just makes life easier to have only one.
+ */
+ struct idr crtc_idr;
+
+ /**
+ * @tile_idr:
+ *
+ * Use this idr for allocating new IDs for tiled sinks like use in some
+ * high-res DP MST screens.
+ */
+ struct idr tile_idr;
+
+ struct mutex fb_lock; /* proctects global and per-file fb lists */
+ int num_fb;
+ struct list_head fb_list;
+
+ /**
+ * @num_connector: Number of connectors on this device.
+ */
+ int num_connector;
+ /**
+ * @connector_ida: ID allocator for connector indices.
+ */
+ struct ida connector_ida;
+ /**
+ * @connector_list: List of connector objects.
+ */
+ struct list_head connector_list;
+ int num_encoder;
+ struct list_head encoder_list;
+
+ /*
+ * 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;
+ struct list_head crtc_list;
+
+ struct list_head property_list;
+
+ int min_width, min_height;
+ int max_width, max_height;
+ const struct drm_mode_config_funcs *funcs;
+ resource_size_t fb_base;
+
+ /* output poll support */
+ bool poll_enabled;
+ bool poll_running;
+ bool delayed_event;
+ struct delayed_work output_poll_work;
+
+ struct mutex blob_lock;
+
+ /* pointers to standard properties */
+ struct list_head property_blob_list;
+ /**
+ * @edid_property: Default connector property to hold the EDID of the
+ * currently connected sink, if any.
+ */
+ struct drm_property *edid_property;
+ /**
+ * @dpms_property: Default connector property to control the
+ * connector's DPMS state.
+ */
+ struct drm_property *dpms_property;
+ /**
+ * @path_property: Default connector property to hold the DP MST path
+ * for the port.
+ */
+ struct drm_property *path_property;
+ /**
+ * @tile_property: Default connector property to store the tile
+ * position of a tiled screen, for sinks which need to be driven with
+ * multiple CRTCs.
+ */
+ struct drm_property *tile_property;
+ /**
+ * @plane_type_property: Default plane property to differentiate
+ * CURSOR, PRIMARY and OVERLAY legacy uses of planes.
+ */
+ struct drm_property *plane_type_property;
+ /**
+ * @prop_src_x: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
+ struct drm_property *prop_src_x;
+ /**
+ * @prop_src_y: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
+ struct drm_property *prop_src_y;
+ /**
+ * @prop_src_w: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
+ struct drm_property *prop_src_w;
+ /**
+ * @prop_src_h: Default atomic plane property for the plane source
+ * position in the connected &drm_framebuffer.
+ */
+ struct drm_property *prop_src_h;
+ /**
+ * @prop_crtc_x: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
+ struct drm_property *prop_crtc_x;
+ /**
+ * @prop_crtc_y: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
+ struct drm_property *prop_crtc_y;
+ /**
+ * @prop_crtc_w: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
+ struct drm_property *prop_crtc_w;
+ /**
+ * @prop_crtc_h: Default atomic plane property for the plane destination
+ * position in the &drm_crtc is is being shown on.
+ */
+ struct drm_property *prop_crtc_h;
+ /**
+ * @prop_fb_id: Default atomic plane property to specify the
+ * &drm_framebuffer.
+ */
+ struct drm_property *prop_fb_id;
+ /**
+ * @prop_crtc_id: Default atomic plane property to specify the
+ * &drm_crtc.
+ */
+ struct drm_property *prop_crtc_id;
+ /**
+ * @prop_active: Default atomic CRTC property to control the active
+ * state, which is the simplified implementation for DPMS in atomic
+ * drivers.
+ */
+ struct drm_property *prop_active;
+ /**
+ * @prop_mode_id: Default atomic CRTC property to set the mode for a
+ * CRTC. A 0 mode implies that the CRTC is entirely disabled - all
+ * connectors must be of and active must be set to disabled, too.
+ */
+ struct drm_property *prop_mode_id;
+
+ /**
+ * @dvi_i_subconnector_property: Optional DVI-I property to
+ * differentiate between analog or digital mode.
+ */
+ struct drm_property *dvi_i_subconnector_property;
+ /**
+ * @dvi_i_select_subconnector_property: Optional DVI-I property to
+ * select between analog or digital mode.
+ */
+ struct drm_property *dvi_i_select_subconnector_property;
+
+ /**
+ * @tv_subconnector_property: Optional TV property to differentiate
+ * between different TV connector types.
+ */
+ struct drm_property *tv_subconnector_property;
+ /**
+ * @tv_select_subconnector_property: Optional TV property to select
+ * between different TV connector types.
+ */
+ struct drm_property *tv_select_subconnector_property;
+ /**
+ * @tv_mode_property: Optional TV property to select
+ * the output TV mode.
+ */
+ struct drm_property *tv_mode_property;
+ /**
+ * @tv_left_margin_property: Optional TV property to set the left
+ * margin.
+ */
+ struct drm_property *tv_left_margin_property;
+ /**
+ * @tv_right_margin_property: Optional TV property to set the right
+ * margin.
+ */
+ struct drm_property *tv_right_margin_property;
+ /**
+ * @tv_top_margin_property: Optional TV property to set the right
+ * margin.
+ */
+ struct drm_property *tv_top_margin_property;
+ /**
+ * @tv_bottom_margin_property: Optional TV property to set the right
+ * margin.
+ */
+ struct drm_property *tv_bottom_margin_property;
+ /**
+ * @tv_brightness_property: Optional TV property to set the
+ * brightness.
+ */
+ struct drm_property *tv_brightness_property;
+ /**
+ * @tv_contrast_property: Optional TV property to set the
+ * contrast.
+ */
+ struct drm_property *tv_contrast_property;
+ /**
+ * @tv_flicker_reduction_property: Optional TV property to control the
+ * flicker reduction mode.
+ */
+ struct drm_property *tv_flicker_reduction_property;
+ /**
+ * @tv_overscan_property: Optional TV property to control the overscan
+ * setting.
+ */
+ struct drm_property *tv_overscan_property;
+ /**
+ * @tv_saturation_property: Optional TV property to set the
+ * saturation.
+ */
+ struct drm_property *tv_saturation_property;
+ /**
+ * @tv_hue_property: Optional TV property to set the hue.
+ */
+ struct drm_property *tv_hue_property;
+
+ /**
+ * @scaling_mode_property: Optional connector property to control the
+ * upscaling, mostly used for built-in panels.
+ */
+ struct drm_property *scaling_mode_property;
+ /**
+ * @aspect_ratio_property: Optional connector property to control the
+ * HDMI infoframe aspect ratio setting.
+ */
+ struct drm_property *aspect_ratio_property;
+ /**
+ * @degamma_lut_property: Optional CRTC property to set the LUT used to
+ * convert the framebuffer's colors to linear gamma.
+ */
+ struct drm_property *degamma_lut_property;
+ /**
+ * @degamma_lut_size_property: Optional CRTC property for the size of
+ * the degamma LUT as supported by the driver (read-only).
+ */
+ struct drm_property *degamma_lut_size_property;
+ /**
+ * @ctm_property: Optional CRTC property to set the
+ * matrix used to convert colors after the lookup in the
+ * degamma LUT.
+ */
+ struct drm_property *ctm_property;
+ /**
+ * @gamma_lut_property: Optional CRTC property to set the LUT used to
+ * convert the colors, after the CTM matrix, to the gamma space of the
+ * connected screen.
+ */
+ struct drm_property *gamma_lut_property;
+ /**
+ * @gamma_lut_size_property: Optional CRTC property for the size of the
+ * gamma LUT as supported by the driver (read-only).
+ */
+ struct drm_property *gamma_lut_size_property;
+
+ /**
+ * @suggested_x_property: Optional connector property with a hint for
+ * the position of the output on the host's screen.
+ */
+ struct drm_property *suggested_x_property;
+ /**
+ * @suggested_y_property: Optional connector property with a hint for
+ * the position of the output on the host's screen.
+ */
+ struct drm_property *suggested_y_property;
+
+ /* dumb ioctl parameters */
+ uint32_t preferred_depth, prefer_shadow;
+
+ /**
+ * @async_page_flip: Does this device support async flips on the primary
+ * plane?
+ */
+ bool async_page_flip;
+
+ /**
+ * @allow_fb_modifiers:
+ *
+ * Whether the driver supports fb modifiers in the ADDFB2.1 ioctl call.
+ */
+ bool allow_fb_modifiers;
+
+ /* cursor size */
+ uint32_t cursor_width, cursor_height;
+
+ struct drm_mode_config_helper_funcs *helper_private;
+};
+
+void drm_mode_config_init(struct drm_device *dev);
+void drm_mode_config_reset(struct drm_device *dev);
+void drm_mode_config_cleanup(struct drm_device *dev);
+
+#endif
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