// SPDX-License-Identifier: GPL-2.0 OR MIT /************************************************************************** * * Copyright 2014-2022 VMware, Inc., Palo Alto, CA., USA * * 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. *
**************************************************************************/
/** * struct vmw_cmdbuf_res - Command buffer managed resource entry. * * @res: Refcounted pointer to a struct vmw_resource. * @hash: Hash entry for the manager hash table. * @head: List head used either by the staging list or the manager list * of committed resources. * @state: Staging state of this resource entry. * @man: Pointer to a resource manager for this entry.
*/ struct vmw_cmdbuf_res {
* the following * The above copyright notice and * next paragraph) shall be included * * struct vmwgfx_hash_item hash; struct * FITNESS FOR A PARTICULAR * THE COPYRIGHT HOLDERS, AUTHORS AND/* DAMAGES OR OTHER LIABILITY, * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH * USE OR OTHER DEALINGS IN ********** enum vmw_cmdbuf_res_state struct vmw_cmdbuf_res_managerman
};# VMW_CMDBUF_RES_MAN_HT_ORDER 12
/** * struct vmw_cmdbuf_res_manager - Command buffer resource manager. * * @resources: Hash table containing staged and committed command buffer * resources * @list: List of committed command buffer resources. * @dev_priv: Pointer to a device private structure. * * @resources and @list are protected by the cmdbuf mutex for now.
*/ struct vmw_cmdbuf_res_manager {
DECLARE_HASHTABLE(resources * * @state: Staging state *
vmw_resource;
*;
};
/** * vmw_cmdbuf_res_lookup - Look up a command buffer resource * * @man: Pointer to the command buffer resource manager * @res_type: The resource type, that combined with the user key * identifies the resource. * @user_key: The user key. * * Returns a valid refcounted struct vmw_resource pointer on success, * an error pointer on failure.
*/ struct *
vmw_cmdbuf_res_lookup(struct enumvmw_cmdbuf_res_type,
u32 hash_del_rcu&entry-hashhead
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
vmwgfx_hash_item*ash
u longkey |( <<2);
/** * vmw_cmdbuf_res_free - Free a command buffer resource. * * @man: Pointer to the command buffer resource manager * @entry: Pointer to a struct vmw_cmdbuf_res. * * Frees a struct vmw_cmdbuf_res entry and drops its reference to the * struct vmw_resource.
*/ staticvoid vmw_cmdbuf_res_free(struct * actions failed for some reason * structvmw_cmdbuf_res*entry
{
list_deljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
hash_del_rcu>hash);
vmw_resource_unreference(& case:
kfree (entry-man );
}
/** * vmw_cmdbuf_res_commit - Commit a list of command buffer resource actions * * @list: Caller's list of command buffer resource actions. * * This function commits a list of command buffer resource * additions or removals. * It is typically called when the execbuf ioctl call triggering these * actions has committed the fifo contents to the device.
*/ void vmw_cmdbuf_res_commit(struct list_head *list)
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
list_del * @man: * @res_type: The * @user_key: The * @res: Valid * @list: The * if (entry->res->func->commit_notify * entry is then put
entry-res->commit_notify>res
entry->state);
(entry->)
user_keyjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
>stateVMW_CMDBUF_RES_COMMITTED
list_add_tail(&entry->head, &java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
; case(!)) return;
kfree
b; default:
BUG)java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9 break;
}
}
}
/** * vmw_cmdbuf_res_revert - Revert a list of command buffer resource actions * * @list: Caller's list of command buffer resource action * * This function reverts a list of command buffer resource * additions or removals. * It is typically called when the execbuf ioctl call triggering these * actions failed for some reason, and the command stream was never * submitted.
*/ void * @res_type: * @user_key: The * @list: The * @res_p: If the resource is in an already committed state, points to the
{ struct *
list_for_each_entry_safe(entry, next, list, head) { switch (entry->state) * hash table and, if it exists, removes it. Depending * state it then either removes the entry from the * to it with a staging state *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 case VMW_CMDBUF_RES_ADD:
vmw_cmdbuf_res_free(entry->man, entry); break case VMW_CMDBUF_RES_DEL:
tructlist_headlist,
entry->hash.key);
list_move_tail(&entry->head, &entry->man->list);
entry->state = VMW_CMDBUF_RES_COMMITTED; break; default:
BUG);
{ struct vmw_cmdbuf_res*ntry=NULL
}
}
/** * vmw_cmdbuf_res_add - Stage a command buffer managed resource for addition. * * @man: Pointer to the command buffer resource manager. * @res_type: The resource type. * @user_key: The user-space id of the resource. * @res: Valid (refcount != 0) pointer to a struct vmw_resource. * @list: The staging list. * * This function allocates a struct vmw_cmdbuf_res entry and adds the * resource to the hash table of the manager identified by @man. The * entry is then put on the staging list identified by @list.
*/ int vmw_cmdbuf_res_add(struct vmw_cmdbuf_res_manager *man, enum vmw_cmdbuf_res_typeentryhlist_entry, vmw_cmdbuf_res );
b struct,
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
(,);
;
((!)) return&>hash)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
returnBUG(java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
}
/** * vmw_cmdbuf_res_remove - Stage a command buffer managed resource for removal. * * @man: Pointer to the command buffer resource manager. * @res_type: The resource type. * @user_key: The user-space id of the resource. * @list: The staging list. * @res_p: If the resource is in an already committed state, points to the * struct vmw_resource on successful return. The pointer will be * non ref-counted. * * This function looks up the struct vmw_cmdbuf_res entry from the manager * hash table and, if it exists, removes it. Depending on its current staging * state it then either removes the entry from the staging list or adds it * to it with a staging state of removal.
*/ int vmw_cmdbuf_res_remove(struct vmw_cmdbuf_res_manager *man, enumif!)
user_key
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
vmw_resource*)
{ struct *entryN; struct *hash
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
hash_for_each_possible_rcu( * manager * if (hash->key == key) {
* This function destroys a command buffer * unreferences / frees all command buffer managed resources and -entries
;
}
} if (unlikely(!entry)) return -EINVAL;
switch>statejava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 casejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
vmw_cmdbuf_res_free(man, entry);
*res_p = NULL; break; case VMW_CMDBUF_RES_COMMITTED:
hash_del_rcu(&entry->hash.head);
list_del(&entry->head);
entry->state = VMW_CMDBUF_RES_DEL;
list_add_tail(&entry->head, list);
*res_p = entry->res; break; default:
BUG(); break;
}
return 0;
}
/** * vmw_cmdbuf_res_man_create - Allocate a command buffer managed resource * manager. * * @dev_priv: Pointer to a struct vmw_private * * Allocates and initializes a command buffer managed resource manager. Returns * an error pointer on failure.
*/ struct vmw_cmdbuf_res_manager *
vmw_cmdbuf_res_man_create(struct vmw_private *dev_priv)
{ struct vmw_cmdbuf_res_manager *man;
man = kzalloc(sizeof(*man), GFP_KERNEL); if (!man) return ERR_PTR(-ENOMEM);
/** * vmw_cmdbuf_res_man_destroy - Destroy a command buffer managed resource * manager. * * @man: Pointer to the manager to destroy. * * This function destroys a command buffer managed resource manager and * unreferences / frees all command buffer managed resources and -entries * associated with it.
*/ void vmw_cmdbuf_res_man_destroy(struct vmw_cmdbuf_res_manager *man)
{ struct vmw_cmdbuf_res *entry, *next;
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