From 9b8d71b5eb09857b07409731d3de182751f712a2 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 31 Jul 2008 12:54:48 +1000 Subject: TTM: remove API and userspace objects. This removes all the TTM userspace API and all userspace objects. It also removes the drm_bo_lock.c code --- linux-core/drm_object.c | 294 ------------------------------------------------ 1 file changed, 294 deletions(-) delete mode 100644 linux-core/drm_object.c (limited to 'linux-core/drm_object.c') diff --git a/linux-core/drm_object.c b/linux-core/drm_object.c deleted file mode 100644 index 2994b716..00000000 --- a/linux-core/drm_object.c +++ /dev/null @@ -1,294 +0,0 @@ -/************************************************************************** - * - * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ -/* - * Authors: Thomas Hellström - */ - -#include "drmP.h" - -int drm_add_user_object(struct drm_file *priv, struct drm_user_object *item, - int shareable) -{ - struct drm_device *dev = priv->minor->dev; - int ret; - - DRM_ASSERT_LOCKED(&dev->struct_mutex); - - /* The refcount will be bumped to 1 when we add the ref object below. */ - atomic_set(&item->refcount, 0); - item->shareable = shareable; - item->owner = priv; - - ret = drm_ht_just_insert_please(&dev->object_hash, &item->hash, - (unsigned long)item, 31, 0, 0); - if (ret) - return ret; - - ret = drm_add_ref_object(priv, item, _DRM_REF_USE); - if (ret) - ret = drm_ht_remove_item(&dev->object_hash, &item->hash); - - return ret; -} -EXPORT_SYMBOL(drm_add_user_object); - -struct drm_user_object *drm_lookup_user_object(struct drm_file *priv, uint32_t key) -{ - struct drm_device *dev = priv->minor->dev; - struct drm_hash_item *hash; - int ret; - struct drm_user_object *item; - - DRM_ASSERT_LOCKED(&dev->struct_mutex); - - ret = drm_ht_find_item(&dev->object_hash, key, &hash); - if (ret) - return NULL; - - item = drm_hash_entry(hash, struct drm_user_object, hash); - - if (priv != item->owner) { - struct drm_open_hash *ht = &priv->refd_object_hash[_DRM_REF_USE]; - ret = drm_ht_find_item(ht, (unsigned long)item, &hash); - if (ret) { - DRM_ERROR("Object not registered for usage\n"); - return NULL; - } - } - return item; -} -EXPORT_SYMBOL(drm_lookup_user_object); - -static void drm_deref_user_object(struct drm_file *priv, struct drm_user_object *item) -{ - struct drm_device *dev = priv->minor->dev; - int ret; - - if (atomic_dec_and_test(&item->refcount)) { - ret = drm_ht_remove_item(&dev->object_hash, &item->hash); - BUG_ON(ret); - item->remove(priv, item); - } -} - -static int drm_object_ref_action(struct drm_file *priv, struct drm_user_object *ro, - enum drm_ref_type action) -{ - int ret = 0; - - switch (action) { - case _DRM_REF_USE: - atomic_inc(&ro->refcount); - break; - default: - if (!ro->ref_struct_locked) { - break; - } else { - ro->ref_struct_locked(priv, ro, action); - } - } - return ret; -} - -int drm_add_ref_object(struct drm_file *priv, struct drm_user_object *referenced_object, - enum drm_ref_type ref_action) -{ - int ret = 0; - struct drm_ref_object *item; - struct drm_open_hash *ht = &priv->refd_object_hash[ref_action]; - - DRM_ASSERT_LOCKED(&priv->minor->dev->struct_mutex); - if (!referenced_object->shareable && priv != referenced_object->owner) { - DRM_ERROR("Not allowed to reference this object\n"); - return -EINVAL; - } - - /* - * If this is not a usage reference, Check that usage has been registered - * first. Otherwise strange things may happen on destruction. - */ - - if ((ref_action != _DRM_REF_USE) && priv != referenced_object->owner) { - item = - drm_lookup_ref_object(priv, referenced_object, - _DRM_REF_USE); - if (!item) { - DRM_ERROR - ("Object not registered for usage by this client\n"); - return -EINVAL; - } - } - - if (NULL != - (item = - drm_lookup_ref_object(priv, referenced_object, ref_action))) { - atomic_inc(&item->refcount); - return drm_object_ref_action(priv, referenced_object, - ref_action); - } - - item = drm_ctl_calloc(1, sizeof(*item), DRM_MEM_OBJECTS); - if (item == NULL) { - DRM_ERROR("Could not allocate reference object\n"); - return -ENOMEM; - } - - atomic_set(&item->refcount, 1); - item->hash.key = (unsigned long)referenced_object; - ret = drm_ht_insert_item(ht, &item->hash); - item->unref_action = ref_action; - - if (ret) - goto out; - - list_add(&item->list, &priv->refd_objects); - ret = drm_object_ref_action(priv, referenced_object, ref_action); -out: - return ret; -} - -struct drm_ref_object *drm_lookup_ref_object(struct drm_file *priv, - struct drm_user_object *referenced_object, - enum drm_ref_type ref_action) -{ - struct drm_hash_item *hash; - int ret; - - DRM_ASSERT_LOCKED(&priv->minor->dev->struct_mutex); - ret = drm_ht_find_item(&priv->refd_object_hash[ref_action], - (unsigned long)referenced_object, &hash); - if (ret) - return NULL; - - return drm_hash_entry(hash, struct drm_ref_object, hash); -} -EXPORT_SYMBOL(drm_lookup_ref_object); - -static void drm_remove_other_references(struct drm_file *priv, - struct drm_user_object *ro) -{ - int i; - struct drm_open_hash *ht; - struct drm_hash_item *hash; - struct drm_ref_object *item; - - for (i = _DRM_REF_USE + 1; i < _DRM_NO_REF_TYPES; ++i) { - ht = &priv->refd_object_hash[i]; - while (!drm_ht_find_item(ht, (unsigned long)ro, &hash)) { - item = drm_hash_entry(hash, struct drm_ref_object, hash); - drm_remove_ref_object(priv, item); - } - } -} - -void drm_remove_ref_object(struct drm_file *priv, struct drm_ref_object *item) -{ - int ret; - struct drm_user_object *user_object = (struct drm_user_object *) item->hash.key; - struct drm_open_hash *ht = &priv->refd_object_hash[item->unref_action]; - enum drm_ref_type unref_action; - - DRM_ASSERT_LOCKED(&priv->minor->dev->struct_mutex); - unref_action = item->unref_action; - if (atomic_dec_and_test(&item->refcount)) { - ret = drm_ht_remove_item(ht, &item->hash); - BUG_ON(ret); - list_del_init(&item->list); - if (unref_action == _DRM_REF_USE) - drm_remove_other_references(priv, user_object); - drm_ctl_free(item, sizeof(*item), DRM_MEM_OBJECTS); - } - - switch (unref_action) { - case _DRM_REF_USE: - drm_deref_user_object(priv, user_object); - break; - default: - BUG_ON(!user_object->unref); - user_object->unref(priv, user_object, unref_action); - break; - } - -} -EXPORT_SYMBOL(drm_remove_ref_object); - -int drm_user_object_ref(struct drm_file *priv, uint32_t user_token, - enum drm_object_type type, struct drm_user_object **object) -{ - struct drm_device *dev = priv->minor->dev; - struct drm_user_object *uo; - struct drm_hash_item *hash; - int ret; - - mutex_lock(&dev->struct_mutex); - ret = drm_ht_find_item(&dev->object_hash, user_token, &hash); - if (ret) { - DRM_ERROR("Could not find user object to reference.\n"); - goto out_err; - } - uo = drm_hash_entry(hash, struct drm_user_object, hash); - if (uo->type != type) { - ret = -EINVAL; - goto out_err; - } - ret = drm_add_ref_object(priv, uo, _DRM_REF_USE); - if (ret) - goto out_err; - mutex_unlock(&dev->struct_mutex); - *object = uo; - return 0; -out_err: - mutex_unlock(&dev->struct_mutex); - return ret; -} - -int drm_user_object_unref(struct drm_file *priv, uint32_t user_token, - enum drm_object_type type) -{ - struct drm_device *dev = priv->minor->dev; - struct drm_user_object *uo; - struct drm_ref_object *ro; - int ret; - - mutex_lock(&dev->struct_mutex); - uo = drm_lookup_user_object(priv, user_token); - if (!uo || (uo->type != type)) { - ret = -EINVAL; - goto out_err; - } - ro = drm_lookup_ref_object(priv, uo, _DRM_REF_USE); - if (!ro) { - ret = -EINVAL; - goto out_err; - } - drm_remove_ref_object(priv, ro); - mutex_unlock(&dev->struct_mutex); - return 0; -out_err: - mutex_unlock(&dev->struct_mutex); - return ret; -} -- cgit v1.2.3