if (obj && obj->id != id)
obj = NULL;
/* don't leak out unref'd fb's */
- if (obj && (obj->type == DRM_MODE_OBJECT_FB))
+ if (obj &&
+ (obj->type == DRM_MODE_OBJECT_FB ||
+ obj->type == DRM_MODE_OBJECT_BLOB))
obj = NULL;
mutex_unlock(&dev->mode_config.idr_mutex);
/* Framebuffers are reference counted and need their own lookup
* function.*/
- WARN_ON(type == DRM_MODE_OBJECT_FB);
+ WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB);
obj = _object_find(dev, id, type);
return obj;
}
if (drm_core_check_feature(dev, DRIVER_ATOMIC)) {
drm_object_attach_property(&crtc->base, config->prop_active, 0);
+ drm_object_attach_property(&crtc->base, config->prop_mode_id, 0);
}
return 0;
}
EXPORT_SYMBOL(drm_plane_index);
+/**
+ * drm_plane_from_index - find the registered plane at an index
+ * @dev: DRM device
+ * @idx: index of registered plane to find for
+ *
+ * Given a plane index, return the registered plane from DRM device's
+ * list of planes with matching index.
+ */
+struct drm_plane *
+drm_plane_from_index(struct drm_device *dev, int idx)
+{
+ struct drm_plane *plane;
+ unsigned int i = 0;
+
+ list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
+ if (i == idx)
+ return plane;
+ i++;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(drm_plane_from_index);
+
/**
* drm_plane_force_disable - Forcibly disable a plane
* @plane: plane to disable
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;
+
return 0;
}
}
EXPORT_SYMBOL(drm_reinit_primary_mode_group);
-/**
- * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
- * @out: drm_mode_modeinfo struct to return to the user
- * @in: drm_display_mode to use
- *
- * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
- * the user.
- */
-static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
- const struct drm_display_mode *in)
-{
- WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
- in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
- in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
- in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
- in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
- "timing values too large for mode info\n");
-
- out->clock = in->clock;
- out->hdisplay = in->hdisplay;
- out->hsync_start = in->hsync_start;
- out->hsync_end = in->hsync_end;
- out->htotal = in->htotal;
- out->hskew = in->hskew;
- out->vdisplay = in->vdisplay;
- out->vsync_start = in->vsync_start;
- out->vsync_end = in->vsync_end;
- out->vtotal = in->vtotal;
- out->vscan = in->vscan;
- out->vrefresh = in->vrefresh;
- out->flags = in->flags;
- out->type = in->type;
- strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
- out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
-}
-
-/**
- * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode
- * @out: drm_display_mode to return to the user
- * @in: drm_mode_modeinfo to use
- *
- * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
- * the caller.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-static int drm_crtc_convert_umode(struct drm_display_mode *out,
- const struct drm_mode_modeinfo *in)
-{
- if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
- return -ERANGE;
-
- if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX)
- return -EINVAL;
-
- out->clock = in->clock;
- out->hdisplay = in->hdisplay;
- out->hsync_start = in->hsync_start;
- out->hsync_end = in->hsync_end;
- out->htotal = in->htotal;
- out->hskew = in->hskew;
- out->vdisplay = in->vdisplay;
- out->vsync_start = in->vsync_start;
- out->vsync_end = in->vsync_end;
- out->vtotal = in->vtotal;
- out->vscan = in->vscan;
- out->vrefresh = in->vrefresh;
- out->flags = in->flags;
- out->type = in->type;
- strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
- out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
-
- return 0;
-}
-
/**
* drm_mode_getresources - get graphics configuration
* @dev: drm device for the ioctl
crtc_resp->x = crtc->primary->state->src_x >> 16;
crtc_resp->y = crtc->primary->state->src_y >> 16;
if (crtc->state->enable) {
- drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);
+ drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode);
crtc_resp->mode_valid = 1;
} else {
crtc_resp->x = crtc->x;
crtc_resp->y = crtc->y;
if (crtc->enabled) {
- drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
+ drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode);
crtc_resp->mode_valid = 1;
} else {
if (!drm_mode_expose_to_userspace(mode, file_priv))
continue;
- drm_crtc_convert_to_umode(&u_mode, mode);
+ drm_mode_convert_to_umode(&u_mode, mode);
if (copy_to_user(mode_ptr + copied,
&u_mode, sizeof(u_mode))) {
ret = -EFAULT;
goto out;
}
- ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
+ ret = drm_mode_convert_umode(mode, &crtc_req->mode);
if (ret) {
DRM_DEBUG_KMS("Invalid mode\n");
goto out;
}
- mode->status = drm_mode_validate_basic(mode);
- if (mode->status != MODE_OK) {
- ret = -EINVAL;
- goto out;
- }
-
drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
/*
r->modifier[i], i);
return -EINVAL;
}
+
+ /* modifier specific checks: */
+ switch (r->modifier[i]) {
+ case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE:
+ /* NOTE: the pitch restriction may be lifted later if it turns
+ * out that no hw has this restriction:
+ */
+ if (r->pixel_format != DRM_FORMAT_NV12 ||
+ width % 128 || height % 32 ||
+ r->pitches[i] % 128) {
+ DRM_DEBUG_KMS("bad modifier data for plane %d\n", i);
+ return -EINVAL;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ for (i = num_planes; i < 4; i++) {
+ if (r->modifier[i]) {
+ DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i);
+ return -EINVAL;
+ }
+
+ /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */
+ if (!(r->flags & DRM_MODE_FB_MODIFIERS))
+ continue;
+
+ if (r->handles[i]) {
+ DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i);
+ return -EINVAL;
+ }
+
+ if (r->pitches[i]) {
+ DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i);
+ return -EINVAL;
+ }
+
+ if (r->offsets[i]) {
+ DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i);
+ return -EINVAL;
+ }
}
return 0;
return ret;
}
-static struct drm_property_blob *
+/**
+ * drm_property_create_blob - Create new blob property
+ *
+ * Creates a new blob property for a specified DRM device, optionally
+ * copying data.
+ *
+ * @dev: DRM device to create property for
+ * @length: Length to allocate for blob data
+ * @data: If specified, copies data into blob
+ *
+ * Returns:
+ * New blob property with a single reference on success, or an ERR_PTR
+ * value on failure.
+ */
+struct drm_property_blob *
drm_property_create_blob(struct drm_device *dev, size_t length,
const void *data)
{
struct drm_property_blob *blob;
int ret;
- if (!length || !data)
- return NULL;
+ if (!length)
+ return ERR_PTR(-EINVAL);
blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
if (!blob)
- return NULL;
+ return ERR_PTR(-ENOMEM);
+
+ /* This must be explicitly initialised, so we can safely call list_del
+ * on it in the removal handler, even if it isn't in a file list. */
+ INIT_LIST_HEAD(&blob->head_file);
+ blob->length = length;
+ blob->dev = dev;
+
+ if (data)
+ memcpy(blob->data, data, length);
+
+ mutex_lock(&dev->mode_config.blob_lock);
ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
if (ret) {
kfree(blob);
- return NULL;
+ mutex_unlock(&dev->mode_config.blob_lock);
+ return ERR_PTR(-EINVAL);
}
- blob->length = length;
+ kref_init(&blob->refcount);
- memcpy(blob->data, data, length);
+ list_add_tail(&blob->head_global,
+ &dev->mode_config.property_blob_list);
+
+ mutex_unlock(&dev->mode_config.blob_lock);
- list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
return blob;
}
+EXPORT_SYMBOL(drm_property_create_blob);
-static void drm_property_destroy_blob(struct drm_device *dev,
- struct drm_property_blob *blob)
+/**
+ * drm_property_free_blob - Blob property destructor
+ *
+ * Internal free function for blob properties; must not be used directly.
+ *
+ * @kref: Reference
+ */
+static void drm_property_free_blob(struct kref *kref)
{
- drm_mode_object_put(dev, &blob->base);
- list_del(&blob->head);
+ struct drm_property_blob *blob =
+ container_of(kref, struct drm_property_blob, refcount);
+
+ WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock));
+
+ list_del(&blob->head_global);
+ list_del(&blob->head_file);
+ drm_mode_object_put(blob->dev, &blob->base);
+
kfree(blob);
}
+/**
+ * drm_property_unreference_blob - Unreference a blob property
+ *
+ * Drop a reference on a blob property. May free the object.
+ *
+ * @blob: Pointer to blob property
+ */
+void drm_property_unreference_blob(struct drm_property_blob *blob)
+{
+ struct drm_device *dev;
+
+ if (!blob)
+ return;
+
+ dev = blob->dev;
+
+ DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount));
+
+ if (kref_put_mutex(&blob->refcount, drm_property_free_blob,
+ &dev->mode_config.blob_lock))
+ mutex_unlock(&dev->mode_config.blob_lock);
+ else
+ might_lock(&dev->mode_config.blob_lock);
+
+}
+EXPORT_SYMBOL(drm_property_unreference_blob);
+
+/**
+ * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held
+ *
+ * Drop a reference on a blob property. May free the object. This must be
+ * called with blob_lock held.
+ *
+ * @blob: Pointer to blob property
+ */
+static void drm_property_unreference_blob_locked(struct drm_property_blob *blob)
+{
+ if (!blob)
+ return;
+
+ DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount));
+
+ kref_put(&blob->refcount, drm_property_free_blob);
+}
+
+/**
+ * drm_property_destroy_user_blobs - destroy all blobs created by this client
+ * @dev: DRM device
+ * @file_priv: destroy all blobs owned by this file handle
+ */
+void drm_property_destroy_user_blobs(struct drm_device *dev,
+ struct drm_file *file_priv)
+{
+ struct drm_property_blob *blob, *bt;
+
+ mutex_lock(&dev->mode_config.blob_lock);
+
+ list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) {
+ list_del_init(&blob->head_file);
+ drm_property_unreference_blob_locked(blob);
+ }
+
+ mutex_unlock(&dev->mode_config.blob_lock);
+}
+
+/**
+ * drm_property_reference_blob - Take a reference on an existing property
+ *
+ * Take a new reference on an existing blob property.
+ *
+ * @blob: Pointer to blob property
+ */
+struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob)
+{
+ DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount));
+ kref_get(&blob->refcount);
+ return blob;
+}
+EXPORT_SYMBOL(drm_property_reference_blob);
+
+/*
+ * Like drm_property_lookup_blob, but does not return an additional reference.
+ * Must be called with blob_lock held.
+ */
+static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev,
+ uint32_t id)
+{
+ struct drm_mode_object *obj = NULL;
+ struct drm_property_blob *blob;
+
+ WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock));
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ obj = idr_find(&dev->mode_config.crtc_idr, id);
+ if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id))
+ blob = NULL;
+ else
+ blob = obj_to_blob(obj);
+ mutex_unlock(&dev->mode_config.idr_mutex);
+
+ return blob;
+}
+
+/**
+ * drm_property_lookup_blob - look up a blob property and take a reference
+ * @dev: drm device
+ * @id: id of the blob property
+ *
+ * If successful, this takes an additional reference to the blob property.
+ * callers need to make sure to eventually unreference the returned property
+ * again, using @drm_property_unreference_blob.
+ */
+struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev,
+ uint32_t id)
+{
+ struct drm_property_blob *blob;
+
+ mutex_lock(&dev->mode_config.blob_lock);
+ blob = __drm_property_lookup_blob(dev, id);
+ if (blob) {
+ if (!kref_get_unless_zero(&blob->refcount))
+ blob = NULL;
+ }
+ mutex_unlock(&dev->mode_config.blob_lock);
+
+ return blob;
+}
+EXPORT_SYMBOL(drm_property_lookup_blob);
+
+/**
+ * drm_property_replace_global_blob - atomically replace existing blob property
+ * @dev: drm device
+ * @replace: location of blob property pointer to be replaced
+ * @length: length of data for new blob, or 0 for no data
+ * @data: content for new blob, or NULL for no data
+ * @obj_holds_id: optional object for property holding blob ID
+ * @prop_holds_id: optional property holding blob ID
+ * @return 0 on success or error on failure
+ *
+ * This function will atomically replace a global property in the blob list,
+ * optionally updating a property which holds the ID of that property. It is
+ * guaranteed to be atomic: no caller will be allowed to see intermediate
+ * results, and either the entire operation will succeed and clean up the
+ * previous property, or it will fail and the state will be unchanged.
+ *
+ * If length is 0 or data is NULL, no new blob will be created, and the holding
+ * property, if specified, will be set to 0.
+ *
+ * Access to the replace pointer is assumed to be protected by the caller, e.g.
+ * by holding the relevant modesetting object lock for its parent.
+ *
+ * For example, a drm_connector has a 'PATH' property, which contains the ID
+ * of a blob property with the value of the MST path information. Calling this
+ * function with replace pointing to the connector's path_blob_ptr, length and
+ * data set for the new path information, obj_holds_id set to the connector's
+ * base object, and prop_holds_id set to the path property name, will perform
+ * a completely atomic update. The access to path_blob_ptr is protected by the
+ * caller holding a lock on the connector.
+ */
+static int drm_property_replace_global_blob(struct drm_device *dev,
+ struct drm_property_blob **replace,
+ size_t length,
+ const void *data,
+ struct drm_mode_object *obj_holds_id,
+ struct drm_property *prop_holds_id)
+{
+ struct drm_property_blob *new_blob = NULL;
+ struct drm_property_blob *old_blob = NULL;
+ int ret;
+
+ WARN_ON(replace == NULL);
+
+ old_blob = *replace;
+
+ if (length && data) {
+ new_blob = drm_property_create_blob(dev, length, data);
+ if (IS_ERR(new_blob))
+ return PTR_ERR(new_blob);
+ }
+
+ /* This does not need to be synchronised with blob_lock, as the
+ * get_properties ioctl locks all modesetting objects, and
+ * obj_holds_id must be locked before calling here, so we cannot
+ * have its value out of sync with the list membership modified
+ * below under blob_lock. */
+ if (obj_holds_id) {
+ ret = drm_object_property_set_value(obj_holds_id,
+ prop_holds_id,
+ new_blob ?
+ new_blob->base.id : 0);
+ if (ret != 0)
+ goto err_created;
+ }
+
+ if (old_blob)
+ drm_property_unreference_blob(old_blob);
+
+ *replace = new_blob;
+
+ return 0;
+
+err_created:
+ drm_property_unreference_blob(new_blob);
+ return ret;
+}
+
/**
* drm_mode_getblob_ioctl - get the contents of a blob property value
* @dev: DRM device
return -EINVAL;
drm_modeset_lock_all(dev);
- blob = drm_property_blob_find(dev, out_resp->blob_id);
+ mutex_lock(&dev->mode_config.blob_lock);
+ blob = __drm_property_lookup_blob(dev, out_resp->blob_id);
if (!blob) {
ret = -ENOENT;
goto done;
out_resp->length = blob->length;
done:
+ mutex_unlock(&dev->mode_config.blob_lock);
drm_modeset_unlock_all(dev);
return ret;
}
+/**
+ * drm_mode_createblob_ioctl - create a new blob property
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * This function creates a new blob property with user-defined values. In order
+ * to give us sensible validation and checking when creating, rather than at
+ * every potential use, we also require a type to be provided upfront.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_createblob_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_create_blob *out_resp = data;
+ struct drm_property_blob *blob;
+ void __user *blob_ptr;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ blob = drm_property_create_blob(dev, out_resp->length, NULL);
+ if (IS_ERR(blob))
+ return PTR_ERR(blob);
+
+ blob_ptr = (void __user *)(unsigned long)out_resp->data;
+ if (copy_from_user(blob->data, blob_ptr, out_resp->length)) {
+ ret = -EFAULT;
+ goto out_blob;
+ }
+
+ /* Dropping the lock between create_blob and our access here is safe
+ * as only the same file_priv can remove the blob; at this point, it is
+ * not associated with any file_priv. */
+ mutex_lock(&dev->mode_config.blob_lock);
+ out_resp->blob_id = blob->base.id;
+ list_add_tail(&file_priv->blobs, &blob->head_file);
+ mutex_unlock(&dev->mode_config.blob_lock);
+
+ return 0;
+
+out_blob:
+ drm_property_unreference_blob(blob);
+ return ret;
+}
+
+/**
+ * drm_mode_destroyblob_ioctl - destroy a user blob property
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * Destroy an existing user-defined blob property.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_mode_destroyblob_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_destroy_blob *out_resp = data;
+ struct drm_property_blob *blob = NULL, *bt;
+ bool found = false;
+ int ret = 0;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ mutex_lock(&dev->mode_config.blob_lock);
+ blob = __drm_property_lookup_blob(dev, out_resp->blob_id);
+ if (!blob) {
+ ret = -ENOENT;
+ goto err;
+ }
+
+ /* Ensure the property was actually created by this user. */
+ list_for_each_entry(bt, &file_priv->blobs, head_file) {
+ if (bt == blob) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ ret = -EPERM;
+ goto err;
+ }
+
+ /* We must drop head_file here, because we may not be the last
+ * reference on the blob. */
+ list_del_init(&blob->head_file);
+ drm_property_unreference_blob_locked(blob);
+ mutex_unlock(&dev->mode_config.blob_lock);
+
+ return 0;
+
+err:
+ mutex_unlock(&dev->mode_config.blob_lock);
+ return ret;
+}
+
/**
* drm_mode_connector_set_path_property - set tile property on connector
* @connector: connector to set property on.
- * @path: path to use for property.
+ * @path: path to use for property; must not be NULL.
*
* This creates a property to expose to userspace to specify a
* connector path. This is mainly used for DisplayPort MST where
const char *path)
{
struct drm_device *dev = connector->dev;
- size_t size = strlen(path) + 1;
int ret;
- connector->path_blob_ptr = drm_property_create_blob(connector->dev,
- size, path);
- if (!connector->path_blob_ptr)
- return -EINVAL;
-
- ret = drm_object_property_set_value(&connector->base,
- dev->mode_config.path_property,
- connector->path_blob_ptr->base.id);
+ ret = drm_property_replace_global_blob(dev,
+ &connector->path_blob_ptr,
+ strlen(path) + 1,
+ path,
+ &connector->base,
+ dev->mode_config.path_property);
return ret;
}
EXPORT_SYMBOL(drm_mode_connector_set_path_property);
int drm_mode_connector_set_tile_property(struct drm_connector *connector)
{
struct drm_device *dev = connector->dev;
- int ret, size;
char tile[256];
-
- if (connector->tile_blob_ptr)
- drm_property_destroy_blob(dev, connector->tile_blob_ptr);
+ int ret;
if (!connector->has_tile) {
- connector->tile_blob_ptr = NULL;
- ret = drm_object_property_set_value(&connector->base,
- dev->mode_config.tile_property, 0);
+ ret = drm_property_replace_global_blob(dev,
+ &connector->tile_blob_ptr,
+ 0,
+ NULL,
+ &connector->base,
+ dev->mode_config.tile_property);
return ret;
}
connector->num_h_tile, connector->num_v_tile,
connector->tile_h_loc, connector->tile_v_loc,
connector->tile_h_size, connector->tile_v_size);
- size = strlen(tile) + 1;
-
- connector->tile_blob_ptr = drm_property_create_blob(connector->dev,
- size, tile);
- if (!connector->tile_blob_ptr)
- return -EINVAL;
- ret = drm_object_property_set_value(&connector->base,
- dev->mode_config.tile_property,
- connector->tile_blob_ptr->base.id);
+ ret = drm_property_replace_global_blob(dev,
+ &connector->tile_blob_ptr,
+ strlen(tile) + 1,
+ tile,
+ &connector->base,
+ dev->mode_config.tile_property);
return ret;
}
EXPORT_SYMBOL(drm_mode_connector_set_tile_property);
const struct edid *edid)
{
struct drm_device *dev = connector->dev;
- size_t size;
+ size_t size = 0;
int ret;
/* ignore requests to set edid when overridden */
if (connector->override_edid)
return 0;
- if (connector->edid_blob_ptr)
- drm_property_destroy_blob(dev, connector->edid_blob_ptr);
-
- /* Delete edid, when there is none. */
- if (!edid) {
- connector->edid_blob_ptr = NULL;
- ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
- return ret;
- }
-
- size = EDID_LENGTH * (1 + edid->extensions);
- connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
- size, edid);
- if (!connector->edid_blob_ptr)
- return -EINVAL;
-
- ret = drm_object_property_set_value(&connector->base,
- dev->mode_config.edid_property,
- connector->edid_blob_ptr->base.id);
+ if (edid)
+ size = EDID_LENGTH + (1 + edid->extensions);
+ ret = drm_property_replace_global_blob(dev,
+ &connector->edid_blob_ptr,
+ size,
+ edid,
+ &connector->base,
+ dev->mode_config.edid_property);
return ret;
}
EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
valid_mask |= (1ULL << property->values[i]);
return !(value & ~valid_mask);
} else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) {
- /* Only the driver knows */
- return true;
+ struct drm_property_blob *blob;
+
+ if (value == 0)
+ return true;
+
+ blob = drm_property_lookup_blob(property->dev, value);
+ if (blob) {
+ *ref = &blob->base;
+ return true;
+ } else {
+ return false;
+ }
} else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
/* a zero value for an object property translates to null: */
if (value == 0)
if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) {
if (property->values[0] == DRM_MODE_OBJECT_FB)
drm_framebuffer_unreference(obj_to_fb(ref));
- }
+ } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB))
+ drm_property_unreference_blob(obj_to_blob(ref));
}
/**
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);
}
list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
- head) {
- drm_property_destroy_blob(dev, blob);
+ head_global) {
+ drm_property_unreference_blob(blob);
}
/*
projects / firefly-linux-kernel-4.4.55.git / blobdiff