diff options
-rw-r--r-- | Documentation/gpu/drm-kms.rst | 32 | ||||
-rw-r--r-- | drivers/gpu/drm/Makefile | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 462 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_crtc_internal.h | 22 | ||||
-rw-r--r-- | drivers/gpu/drm/drm_mode_config.c | 482 | ||||
-rw-r--r-- | include/drm/drm_crtc.h | 616 | ||||
-rw-r--r-- | include/drm/drm_mode_config.h | 652 |
7 files changed, 1172 insertions, 1096 deletions
diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst index 4edfb6d91250..a8ff2c87c0e9 100644 --- a/Documentation/gpu/drm-kms.rst +++ b/Documentation/gpu/drm-kms.rst @@ -15,25 +15,24 @@ be setup by initializing the following fields. - 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 @@ -45,6 +44,15 @@ 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 ======================== diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index adcfc8f922e3..883f3e75cfbc 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -16,7 +16,7 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \ drm_framebuffer.o drm_connector.o drm_blend.o \ drm_encoder.o drm_mode_object.o drm_property.o \ drm_plane.o drm_color_mgmt.o drm_print.o \ - drm_dumb_buffers.o + drm_dumb_buffers.o drm_mode_config.o drm-$(CONFIG_COMPAT) += drm_ioc32.o drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index b0827634af18..239b64c85098 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -45,18 +45,6 @@ #include "drm_crtc_internal.h" #include "drm_internal.h" -/* - * Global properties - */ -static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { - { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, - { DRM_PLANE_TYPE_PRIMARY, "Primary" }, - { DRM_PLANE_TYPE_CURSOR, "Cursor" }, -}; - -/* - * Optional properties - */ /** * drm_crtc_force_disable - Forcibly turn off a CRTC * @crtc: CRTC to turn off @@ -114,7 +102,7 @@ static unsigned int drm_num_crtcs(struct drm_device *dev) return num; } -static int drm_crtc_register_all(struct drm_device *dev) +int drm_crtc_register_all(struct drm_device *dev) { struct drm_crtc *crtc; int ret = 0; @@ -133,7 +121,7 @@ static int drm_crtc_register_all(struct drm_device *dev) return 0; } -static void drm_crtc_unregister_all(struct drm_device *dev) +void drm_crtc_unregister_all(struct drm_device *dev) { struct drm_crtc *crtc; @@ -285,301 +273,6 @@ void drm_crtc_cleanup(struct drm_crtc *crtc) } EXPORT_SYMBOL(drm_crtc_cleanup); -int drm_modeset_register_all(struct drm_device *dev) -{ - int ret; - - ret = drm_plane_register_all(dev); - if (ret) - goto err_plane; - - ret = drm_crtc_register_all(dev); - if (ret) - goto err_crtc; - - ret = drm_encoder_register_all(dev); - if (ret) - goto err_encoder; - - ret = drm_connector_register_all(dev); - if (ret) - goto err_connector; - - return 0; - -err_connector: - drm_encoder_unregister_all(dev); -err_encoder: - drm_crtc_unregister_all(dev); -err_crtc: - drm_plane_unregister_all(dev); -err_plane: - return ret; -} - -void drm_modeset_unregister_all(struct drm_device *dev) -{ - drm_connector_unregister_all(dev); - drm_encoder_unregister_all(dev); - drm_crtc_unregister_all(dev); - drm_plane_unregister_all(dev); -} - -static int drm_mode_create_standard_properties(struct drm_device *dev) -{ - struct drm_property *prop; - int ret; - - ret = drm_connector_create_standard_properties(dev); - if (ret) - return ret; - - prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, - "type", drm_plane_type_enum_list, - ARRAY_SIZE(drm_plane_type_enum_list)); - if (!prop) - return -ENOMEM; - dev->mode_config.plane_type_property = prop; - - prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, - "SRC_X", 0, UINT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_src_x = prop; - - prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, - "SRC_Y", 0, UINT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_src_y = prop; - - prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, - "SRC_W", 0, UINT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_src_w = prop; - - prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, - "SRC_H", 0, UINT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_src_h = prop; - - prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, - "CRTC_X", INT_MIN, INT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_crtc_x = prop; - - prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, - "CRTC_Y", INT_MIN, INT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_crtc_y = prop; - - prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, - "CRTC_W", 0, INT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_crtc_w = prop; - - prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, - "CRTC_H", 0, INT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_crtc_h = prop; - - prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, - "FB_ID", DRM_MODE_OBJECT_FB); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_fb_id = prop; - - prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, - "CRTC_ID", DRM_MODE_OBJECT_CRTC); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_crtc_id = prop; - - prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, - "ACTIVE"); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_active = prop; - - prop = drm_property_create(dev, - DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, - "MODE_ID", 0); - if (!prop) - return -ENOMEM; - dev->mode_config.prop_mode_id = prop; - - prop = drm_property_create(dev, - DRM_MODE_PROP_BLOB, - "DEGAMMA_LUT", 0); - if (!prop) - return -ENOMEM; - dev->mode_config.degamma_lut_property = prop; - - prop = drm_property_create_range(dev, - DRM_MODE_PROP_IMMUTABLE, - "DEGAMMA_LUT_SIZE", 0, UINT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.degamma_lut_size_property = prop; - - prop = drm_property_create(dev, - DRM_MODE_PROP_BLOB, - "CTM", 0); - if (!prop) - return -ENOMEM; - dev->mode_config.ctm_property = prop; - - prop = drm_property_create(dev, - DRM_MODE_PROP_BLOB, - "GAMMA_LUT", 0); - if (!prop) - return -ENOMEM; - dev->mode_config.gamma_lut_property = prop; - - prop = drm_property_create_range(dev, - DRM_MODE_PROP_IMMUTABLE, - "GAMMA_LUT_SIZE", 0, UINT_MAX); - if (!prop) - return -ENOMEM; - dev->mode_config.gamma_lut_size_property = prop; - - return 0; -} - -/** - * drm_mode_getresources - get graphics configuration - * @dev: drm device for the ioctl - * @data: data pointer for the ioctl - * @file_priv: drm file for the ioctl call - * - * Construct a set of configuration description structures and return - * them to the user, including CRTC, connector and framebuffer configuration. - * - * Called by the user via ioctl. - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_mode_getresources(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_mode_card_res *card_res = data; - struct list_head *lh; - struct drm_framebuffer *fb; - struct drm_connector *connector; - struct drm_crtc *crtc; - struct drm_encoder *encoder; - int ret = 0; - int connector_count = 0; - int crtc_count = 0; - int fb_count = 0; - int encoder_count = 0; - int copied = 0; - uint32_t __user *fb_id; - uint32_t __user *crtc_id; - uint32_t __user *connector_id; - uint32_t __user *encoder_id; - - if (!drm_core_check_feature(dev, DRIVER_MODESET)) - return -EINVAL; - - - mutex_lock(&file_priv->fbs_lock); - /* - * For the non-control nodes we need to limit the list of resources - * by IDs in the group list for this node - */ - list_for_each(lh, &file_priv->fbs) - fb_count++; - - /* handle this in 4 parts */ - /* FBs */ - if (card_res->count_fbs >= fb_count) { - copied = 0; - fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; - list_for_each_entry(fb, &file_priv->fbs, filp_head) { - if (put_user(fb->base.id, fb_id + copied)) { - mutex_unlock(&file_priv->fbs_lock); - return -EFAULT; - } - copied++; - } - } - card_res->count_fbs = fb_count; - mutex_unlock(&file_priv->fbs_lock); - - /* mode_config.mutex protects the connector list against e.g. DP MST - * connector hot-adding. CRTC/Plane lists are invariant. */ - mutex_lock(&dev->mode_config.mutex); - drm_for_each_crtc(crtc, dev) - crtc_count++; - - drm_for_each_connector(connector, dev) - connector_count++; - - drm_for_each_encoder(encoder, dev) - encoder_count++; - - card_res->max_height = dev->mode_config.max_height; - card_res->min_height = dev->mode_config.min_height; - card_res->max_width = dev->mode_config.max_width; - card_res->min_width = dev->mode_config.min_width; - - /* CRTCs */ - if (card_res->count_crtcs >= crtc_count) { - copied = 0; - crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; - drm_for_each_crtc(crtc, dev) { - if (put_user(crtc->base.id, crtc_id + copied)) { - ret = -EFAULT; - goto out; - } - copied++; - } - } - card_res->count_crtcs = crtc_count; - - /* Encoders */ - if (card_res->count_encoders >= encoder_count) { - copied = 0; - encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; - drm_for_each_encoder(encoder, dev) { - if (put_user(encoder->base.id, encoder_id + - copied)) { - ret = -EFAULT; - goto out; - } - copied++; - } - } - card_res->count_encoders = encoder_count; - - /* Connectors */ - if (card_res->count_connectors >= connector_count) { - copied = 0; - connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; - drm_for_each_connector(connector, dev) { - if (put_user(connector->base.id, - connector_id + copied)) { - ret = -EFAULT; - goto out; - } - copied++; - } - } - card_res->count_connectors = connector_count; - -out: - mutex_unlock(&dev->mode_config.mutex); - return ret; -} - /** * drm_mode_getcrtc - get CRTC configuration * @dev: drm device for the ioctl @@ -934,157 +627,6 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, } /** - * drm_mode_config_reset - call ->reset callbacks - * @dev: drm device - * - * This functions calls all the crtc's, encoder's and connector's ->reset - * callback. Drivers can use this in e.g. their driver load or resume code to - * reset hardware and software state. - */ -void drm_mode_config_reset(struct drm_device *dev) -{ - struct drm_crtc *crtc; - struct drm_plane *plane; - struct drm_encoder *encoder; - struct drm_connector *connector; - - drm_for_each_plane(plane, dev) - if (plane->funcs->reset) - plane->funcs->reset(plane); - - drm_for_each_crtc(crtc, dev) - if (crtc->funcs->reset) - crtc->funcs->reset(crtc); - - drm_for_each_encoder(encoder, dev) - if (encoder->funcs->reset) - encoder->funcs->reset(encoder); - - mutex_lock(&dev->mode_config.mutex); - drm_for_each_connector(connector, dev) - if (connector->funcs->reset) - connector->funcs->reset(connector); - mutex_unlock(&dev->mode_config.mutex); -} -EXPORT_SYMBOL(drm_mode_config_reset); - -/** - * drm_mode_config_init - initialize DRM mode_configuration structure - * @dev: DRM device - * - * Initialize @dev's mode_config structure, used for tracking the graphics - * configuration of @dev. - * - * Since this initializes the modeset locks, no locking is possible. Which is no - * problem, since this should happen single threaded at init time. It is the - * driver's problem to ensure this guarantee. - * - */ -void drm_mode_config_init(struct drm_device *dev) -{ - mutex_init(&dev->mode_config.mutex); - drm_modeset_lock_init(&dev->mode_config.connection_mutex); - mutex_init(&dev->mode_config.idr_mutex); - mutex_init(&dev->mode_config.fb_lock); - mutex_init(&dev->mode_config.blob_lock); - INIT_LIST_HEAD(&dev->mode_config.fb_list); - INIT_LIST_HEAD(&dev->mode_config.crtc_list); - INIT_LIST_HEAD(&dev->mode_config.connector_list); - INIT_LIST_HEAD(&dev->mode_config.encoder_list); - INIT_LIST_HEAD(&dev->mode_config.property_list); - INIT_LIST_HEAD(&dev->mode_config.property_blob_list); - INIT_LIST_HEAD(&dev->mode_config.plane_list); - idr_init(&dev->mode_config.crtc_idr); - idr_init(&dev->mode_config.tile_idr); - ida_init(&dev->mode_config.connector_ida); - - drm_modeset_lock_all(dev); - drm_mode_create_standard_properties(dev); - drm_modeset_unlock_all(dev); - - /* Just to be sure */ - dev->mode_config.num_fb = 0; - dev->mode_config.num_connector = 0; - dev->mode_config.num_crtc = 0; - dev->mode_config.num_encoder = 0; - dev->mode_config.num_overlay_plane = 0; - dev->mode_config.num_total_plane = 0; -} -EXPORT_SYMBOL(drm_mode_config_init); - -/** - * drm_mode_config_cleanup - free up DRM mode_config info - * @dev: DRM device - * - * Free up all the connectors and CRTCs associated with this DRM device, then - * free up the framebuffers and associated buffer objects. - * - * Note that since this /should/ happen single-threaded at driver/device - * teardown time, no locking is required. It's the driver's job to ensure that - * this guarantee actually holds true. - * - * FIXME: cleanup any dangling user buffer objects too - */ -void drm_mode_config_cleanup(struct drm_device *dev) -{ - struct drm_connector *connector, *ot; - struct drm_crtc *crtc, *ct; - struct drm_encoder *encoder, *enct; - struct drm_framebuffer *fb, *fbt; - struct drm_property *property, *pt; - struct drm_property_blob *blob, *bt; - struct drm_plane *plane, *plt; - - list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, - head) { - encoder->funcs->destroy(encoder); - } - - list_for_each_entry_safe(connector, ot, - &dev->mode_config.connector_list, head) { - connector->funcs->destroy(connector); - } - - list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, - head) { - drm_property_destroy(dev, property); - } - - list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, - head) { - plane->funcs->destroy(plane); - } - - list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { - crtc->funcs->destroy(crtc); - } - - list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, - head_global) { - drm_property_unreference_blob(blob); - } - - /* - * Single-threaded teardown context, so it's not required to grab the - * fb_lock to protect against concurrent fb_list access. Contrary, it - * would actually deadlock with the drm_framebuffer_cleanup function. - * - * Also, if there are any framebuffers left, that's a driver leak now, - * so politely WARN about this. - */ - WARN_ON(!list_empty(&dev->mode_config.fb_list)); - list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { - drm_framebuffer_free(&fb->base.refcount); - } - - ida_destroy(&dev->mode_config.connector_ida); - idr_destroy(&dev->mode_config.tile_idr); - idr_destroy(&dev->mode_config.crtc_idr); - drm_modeset_lock_fini(&dev->mode_config.connection_mutex); -} -EXPORT_SYMBOL(drm_mode_config_cleanup); - -/** * DOC: Tile group * * Tile groups are used to represent tiled monitors with a unique diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h index 64bb3eb7f806..f78d5aaf7e91 100644 --- a/drivers/gpu/drm/drm_crtc_internal.h +++ b/drivers/gpu/drm/drm_crtc_internal.h @@ -40,20 +40,27 @@ int drm_crtc_check_viewport(const struct drm_crtc *crtc, int x, int y, const struct drm_display_mode *mode, const struct drm_framebuffer *fb); - -void drm_fb_release(struct drm_file *file_priv); +int drm_crtc_register_all(struct drm_device *dev); +void drm_crtc_unregister_all(struct drm_device *dev); /* IOCTLs */ -int drm_mode_getresources(struct drm_device *dev, - void *data, struct drm_file *file_priv); int drm_mode_getcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_mode_setcrtc(struct drm_device *dev, void *data, struct drm_file *file_priv); -/* drm_dumb_buffers.c */ + +/* drm_mode_config.c */ +int drm_modeset_register_all(struct drm_device *dev); +void drm_modeset_unregister_all(struct drm_device *dev); /* IOCTLs */ +int drm_mode_getresources(struct drm_device *dev, + void *data, struct drm_file *file_priv); + + +/* drm_dumb_buffers.c */ +/* IOCTLs */ int drm_mode_create_dumb_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, @@ -149,6 +156,8 @@ void drm_framebuffer_free(struct kref *kref); int drm_framebuffer_check_src_coords(uint32_t src_x, uint32_t src_y, uint32_t src_w, uint32_t src_h, const struct drm_framebuffer *fb); +void drm_fb_release(struct drm_file *file_priv); + /* IOCTL */ int drm_mode_addfb(struct drm_device *dev, @@ -168,9 +177,6 @@ int drm_atomic_get_property(struct drm_mode_object *obj, int drm_mode_atomic_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -int drm_modeset_register_all(struct drm_device *dev); -void drm_modeset_unregister_all(struct drm_device *dev); - /* drm_plane.c */ int drm_plane_register_all(struct drm_device *dev); diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c new file mode 100644 index 000000000000..6f80886ed40b --- /dev/null +++ b/drivers/gpu/drm/drm_mode_config.c @@ -0,0 +1,482 @@ +/* + * Copyright (c) 2016 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include <drm/drm_mode_config.h> +#include <drm/drmP.h> + +#include "drm_crtc_internal.h" +#include "drm_internal.h" + +int drm_modeset_register_all(struct drm_device *dev) +{ + int ret; + + ret = drm_plane_register_all(dev); + if (ret) + goto err_plane; + + ret = drm_crtc_register_all(dev); + if (ret) + goto err_crtc; + + ret = drm_encoder_register_all(dev); + if (ret) + goto err_encoder; + + ret = drm_connector_register_all(dev); + if (ret) + goto err_connector; + + return 0; + +err_connector: + drm_encoder_unregister_all(dev); +err_encoder: + drm_crtc_unregister_all(dev); +err_crtc: + drm_plane_unregister_all(dev); +err_plane: + return ret; +} + +void drm_modeset_unregister_all(struct drm_device *dev) +{ + drm_connector_unregister_all(dev); + drm_encoder_unregister_all(dev); + drm_crtc_unregister_all(dev); + drm_plane_unregister_all(dev); +} + +/** + * drm_mode_getresources - get graphics configuration + * @dev: drm device for the ioctl + * @data: data pointer for the ioctl + * @file_priv: drm file for the ioctl call + * + * Construct a set of configuration description structures and return + * them to the user, including CRTC, connector and framebuffer configuration. + * + * Called by the user via ioctl. + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_mode_getresources(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_card_res *card_res = data; + struct list_head *lh; + struct drm_framebuffer *fb; + struct drm_connector *connector; + struct drm_crtc *crtc; + struct drm_encoder *encoder; + int ret = 0; + int connector_count = 0; + int crtc_count = 0; + int fb_count = 0; + int encoder_count = 0; + int copied = 0; + uint32_t __user *fb_id; + uint32_t __user *crtc_id; + uint32_t __user *connector_id; + uint32_t __user *encoder_id; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + + mutex_lock(&file_priv->fbs_lock); + /* + * For the non-control nodes we need to limit the list of resources + * by IDs in the group list for this node + */ + list_for_each(lh, &file_priv->fbs) + fb_count++; + + /* handle this in 4 parts */ + /* FBs */ + if (card_res->count_fbs >= fb_count) { + copied = 0; + fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; + list_for_each_entry(fb, &file_priv->fbs, filp_head) { + if (put_user(fb->base.id, fb_id + copied)) { + mutex_unlock(&file_priv->fbs_lock); + return -EFAULT; + } + copied++; + } + } + card_res->count_fbs = fb_count; + mutex_unlock(&file_priv->fbs_lock); + + /* mode_config.mutex protects the connector list against e.g. DP MST + * connector hot-adding. CRTC/Plane lists are invariant. */ + mutex_lock(&dev->mode_config.mutex); + drm_for_each_crtc(crtc, dev) + crtc_count++; + + drm_for_each_connector(connector, dev) + connector_count++; + + drm_for_each_encoder(encoder, dev) + encoder_count++; + + card_res->max_height = dev->mode_config.max_height; + card_res->min_height = dev->mode_config.min_height; + card_res->max_width = dev->mode_config.max_width; + card_res->min_width = dev->mode_config.min_width; + + /* CRTCs */ + if (card_res->count_crtcs >= crtc_count) { + copied = 0; + crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; + drm_for_each_crtc(crtc, dev) { + if (put_user(crtc->base.id, crtc_id + copied)) { + ret = -EFAULT; + goto out; + } + copied++; + } + } + card_res->count_crtcs = crtc_count; + + /* Encoders */ + if (card_res->count_encoders >= encoder_count) { + copied = 0; + encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; + drm_for_each_encoder(encoder, dev) { + if (put_user(encoder->base.id, encoder_id + + copied)) { + ret = -EFAULT; + goto out; + } + copied++; + } + } + card_res->count_encoders = encoder_count; + + /* Connectors */ + if (card_res->count_connectors >= connector_count) { + copied = 0; + connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; + drm_for_each_connector(connector, dev) { + if (put_user(connector->base.id, + connector_id + copied)) { + ret = -EFAULT; + goto out; + } + copied++; + } + } + card_res->count_connectors = connector_count; + +out: + mutex_unlock(&dev->mode_config.mutex); + return ret; +} + +/** + * drm_mode_config_reset - call ->reset callbacks + * @dev: drm device + * + * This functions calls all the crtc's, encoder's and connector's ->reset + * callback. Drivers can use this in e.g. their driver load or resume code to + * reset hardware and software state. + */ +void drm_mode_config_reset(struct drm_device *dev) +{ + struct drm_crtc *crtc; + struct drm_plane *plane; + struct drm_encoder *encoder; + struct drm_connector *connector; + + drm_for_each_plane(plane, dev) + if (plane->funcs->reset) + plane->funcs->reset(plane); + + drm_for_each_crtc(crtc, dev) + if (crtc->funcs->reset) + crtc->funcs->reset(crtc); + + drm_for_each_encoder(encoder, dev) + if (encoder->funcs->reset) + encoder->funcs->reset(encoder); + + mutex_lock(&dev->mode_config.mutex); + drm_for_each_connector(connector, dev) + if (connector->funcs->reset) + connector->funcs->reset(connector); + mutex_unlock(&dev->mode_config.mutex); +} +EXPORT_SYMBOL(drm_mode_config_reset); + +/* + * Global properties + */ +static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { + { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, + { DRM_PLANE_TYPE_PRIMARY, "Primary" }, + { DRM_PLANE_TYPE_CURSOR, "Cursor" }, +}; + +static int drm_mode_create_standard_properties(struct drm_device *dev) +{ + struct drm_property *prop; + int ret; + + ret = drm_connector_create_standard_properties(dev); + if (ret) + return ret; + + prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, + "type", drm_plane_type_enum_list, + ARRAY_SIZE(drm_plane_type_enum_list)); + if (!prop) + return -ENOMEM; + dev->mode_config.plane_type_property = prop; + + prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, + "SRC_X", 0, UINT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_src_x = prop; + + prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, + "SRC_Y", 0, UINT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_src_y = prop; + + prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, + "SRC_W", 0, UINT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_src_w = prop; + + prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, + "SRC_H", 0, UINT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_src_h = prop; + + prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, + "CRTC_X", INT_MIN, INT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_crtc_x = prop; + + prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, + "CRTC_Y", INT_MIN, INT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_crtc_y = prop; + + prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, + "CRTC_W", 0, INT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_crtc_w = prop; + + prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, + "CRTC_H", 0, INT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_crtc_h = prop; + + prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, + "FB_ID", DRM_MODE_OBJECT_FB); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_fb_id = prop; + + prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, + "CRTC_ID", DRM_MODE_OBJECT_CRTC); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_crtc_id = prop; + + prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, + "ACTIVE"); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_active = prop; + + prop = drm_property_create(dev, + DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, + "MODE_ID", 0); + if (!prop) + return -ENOMEM; + dev->mode_config.prop_mode_id = prop; + + prop = drm_property_create(dev, + DRM_MODE_PROP_BLOB, + "DEGAMMA_LUT", 0); + if (!prop) + return -ENOMEM; + dev->mode_config.degamma_lut_property = prop; + + prop = drm_property_create_range(dev, + DRM_MODE_PROP_IMMUTABLE, + "DEGAMMA_LUT_SIZE", 0, UINT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.degamma_lut_size_property = prop; + + prop = drm_property_create(dev, + DRM_MODE_PROP_BLOB, + "CTM", 0); + if (!prop) + return -ENOMEM; + dev->mode_config.ctm_property = prop; + + prop = drm_property_create(dev, + DRM_MODE_PROP_BLOB, + "GAMMA_LUT", 0); + if (!prop) + return -ENOMEM; + dev->mode_config.gamma_lut_property = prop; + + prop = drm_property_create_range(dev, + DRM_MODE_PROP_IMMUTABLE, + "GAMMA_LUT_SIZE", 0, UINT_MAX); + if (!prop) + return -ENOMEM; + dev->mode_config.gamma_lut_size_property = prop; + + return 0; +} + +/** + * drm_mode_config_init - initialize DRM mode_configuration structure + * @dev: DRM device + * + * Initialize @dev's mode_config structure, used for tracking the graphics + * configuration of @dev. + * + * Since this initializes the modeset locks, no locking is possible. Which is no + * problem, since this should happen single threaded at init time. It is the + * driver's problem to ensure this guarantee. + * + */ +void drm_mode_config_init(struct drm_device *dev) +{ + mutex_init(&dev->mode_config.mutex); + drm_modeset_lock_init(&dev->mode_config.connection_mutex); + mutex_init(&dev->mode_config.idr_mutex); + mutex_init(&dev->mode_config.fb_lock); + mutex_init(&dev->mode_config.blob_lock); + INIT_LIST_HEAD(&dev->mode_config.fb_list); + INIT_LIST_HEAD(&dev->mode_config.crtc_list); + INIT_LIST_HEAD(&dev->mode_config.connector_list); + INIT_LIST_HEAD(&dev->mode_config.encoder_list); + INIT_LIST_HEAD(&dev->mode_config.property_list); + INIT_LIST_HEAD(&dev->mode_config.property_blob_list); + INIT_LIST_HEAD(&dev->mode_config.plane_list); + idr_init(&dev->mode_config.crtc_idr); + idr_init(&dev->mode_config.tile_idr); + ida_init(&dev->mode_config.connector_ida); + + drm_modeset_lock_all(dev); + drm_mode_create_standard_properties(dev); + drm_modeset_unlock_all(dev); + + /* Just to be sure */ + dev->mode_config.num_fb = 0; + dev->mode_config.num_connector = 0; + dev->mode_config.num_crtc = 0; + dev->mode_config.num_encoder = 0; + dev->mode_config.num_overlay_plane = 0; + dev->mode_config.num_total_plane = 0; +} +EXPORT_SYMBOL(drm_mode_config_init); + +/** + * drm_mode_config_cleanup - free up DRM mode_config info + * @dev: DRM device + * + * Free up all the connectors and CRTCs associated with this DRM device, then + * free up the framebuffers and associated buffer objects. + * + * Note that since this /should/ happen single-threaded at driver/device + * teardown time, no locking is required. It's the driver's job to ensure that + * this guarantee actually holds true. + * + * FIXME: cleanup any dangling user buffer objects too + */ +void drm_mode_config_cleanup(struct drm_device *dev) +{ + struct drm_connector *connector, *ot; + struct drm_crtc *crtc, *ct; + struct drm_encoder *encoder, *enct; + struct drm_framebuffer *fb, *fbt; + struct drm_property *property, *pt; + struct drm_property_blob *blob, *bt; + struct drm_plane *plane, *plt; + + list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, + head) { + encoder->funcs->destroy(encoder); + } + + list_for_each_entry_safe(connector, ot, + &dev->mode_config.connector_list, head) { + connector->funcs->destroy(connector); + } + + list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, + head) { + drm_property_destroy(dev, property); + } + + list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, + head) { + plane->funcs->destroy(plane); + } + + list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { + crtc->funcs->destroy(crtc); + } + + list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, + head_global) { + drm_property_unreference_blob(blob); + } + + /* + * Single-threaded teardown context, so it's not required to grab the + * fb_lock to protect against concurrent fb_list access. Contrary, it + * would actually deadlock with the drm_framebuffer_cleanup function. + * + * Also, if there are any framebuffers left, that's a driver leak now, + * so politely WARN about this. + */ + WARN_ON(!list_empty(&dev->mode_config.fb_list)); + list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { + drm_framebuffer_free(&fb->base.refcount); + } + + ida_destroy |