/*
* Copyright (c) 2006, 2013, Oracle and/or its affiliates. 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, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
/*
* Copyright (c) 2012 Intel Corporation. All rights reserved.
*/
#ifndef __DRM_IDR_H__
#define __DRM_IDR_H__
#include <sys/avl.h>
struct idr_used_id {
struct avl_node link;
uint32_t id;
void *obj;
};
struct idr_free_id {
struct idr_free_id *next;
uint32_t id;
};
struct idr_free_id_range {
struct idr_free_id_range *next;
uint32_t start;
uint32_t end;
uint32_t min_unused_id;
struct idr_free_id *free_ids;
};
struct idr {
struct avl_tree used_ids;
struct idr_free_id_range *free_id_ranges;
kmutex_t lock;
};
extern void idr_init(struct idr *idrp);
extern int idr_get_new_above(struct idr *idrp, void *obj, int start, int *newid);
extern void* idr_find(struct idr *idrp, uint32_t id);
extern int idr_remove(struct idr *idrp, uint32_t id);
extern void* idr_replace(struct idr *idrp, void *obj, uint32_t id);
extern int idr_pre_get(struct idr *idrp, int flag);
extern int idr_for_each(struct idr *idrp, int (*fn)(int id, void *obj, void *data), void *data);
extern void idr_remove_all(struct idr *idrp);
extern void idr_destroy(struct idr* idrp);
#define DRM_GEM_OBJIDR_HASHNODE 1024
struct idr_list {
struct idr_list *next, *prev;
void *obj;
uint32_t handle;
caddr_t contain_ptr;
};
#define idr_list_for_each(entry, head) \
for (int key = 0; key < DRM_GEM_OBJIDR_HASHNODE; key++) \
list_for_each(entry, &(head)->next[key])
extern int idr_list_pre_get(struct idr_list *head, int flag);
extern void idr_list_init(struct idr_list *head);
extern int idr_list_get_new_above(struct idr_list *head,
void *obj,
int *handlep);
extern void *idr_list_find(struct idr_list *head, uint32_t name);
extern int idr_list_remove(struct idr_list *head, uint32_t name);
extern void idr_list_free(struct idr_list *head);
extern int idr_list_empty(struct idr_list *head);
#endif /* __DRM_IDR_H__ */