[deliverable/linux.git] / drivers / gpu / drm / drm_sman.c

/**************************************************************************
 *
 * Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., 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 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.
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 *
 **************************************************************************/
/*
 * Simple memory manager interface that keeps track on allocate regions on a
 * per "owner" basis. All regions associated with an "owner" can be released
 * with a simple call. Typically if the "owner" exists. The owner is any
 * "unsigned long" identifier. Can typically be a pointer to a file private
 * struct or a context identifier.
 *
 * Authors:
 * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
 */

#include <linux/export.h>
#include "drm_sman.h"

struct drm_owner_item {
	struct drm_hash_item owner_hash;
	struct list_head sman_list;
	struct list_head mem_blocks;
};

void drm_sman_takedown(struct drm_sman * sman)
{
	drm_ht_remove(&sman->user_hash_tab);
	drm_ht_remove(&sman->owner_hash_tab);
	kfree(sman->mm);
}

EXPORT_SYMBOL(drm_sman_takedown);

int
drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
	      unsigned int user_order, unsigned int owner_order)
{
	int ret = 0;

	sman->mm = kcalloc(num_managers, sizeof(*sman->mm), GFP_KERNEL);
	if (!sman->mm) {
		ret = -ENOMEM;
		goto out;
	}
	sman->num_managers = num_managers;
	INIT_LIST_HEAD(&sman->owner_items);
	ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
	if (ret)
		goto out1;
	ret = drm_ht_create(&sman->user_hash_tab, user_order);
	if (!ret)
		goto out;

	drm_ht_remove(&sman->owner_hash_tab);
out1:
	kfree(sman->mm);
out:
	return ret;
}

EXPORT_SYMBOL(drm_sman_init);

static void *drm_sman_mm_allocate(void *private, unsigned long size,
				  unsigned alignment)
{
	struct drm_mm *mm = (struct drm_mm *) private;
	struct drm_mm_node *tmp;

	tmp = drm_mm_search_free(mm, size, alignment, 1);
	if (!tmp) {
		return NULL;
	}
	tmp = drm_mm_get_block(tmp, size, alignment);
	return tmp;
}

static void drm_sman_mm_free(void *private, void *ref)
{
	struct drm_mm_node *node = (struct drm_mm_node *) ref;

	drm_mm_put_block(node);
}

static void drm_sman_mm_destroy(void *private)
{
	struct drm_mm *mm = (struct drm_mm *) private;
	drm_mm_takedown(mm);
	kfree(mm);
}

static unsigned long drm_sman_mm_offset(void *private, void *ref)
{
	struct drm_mm_node *node = (struct drm_mm_node *) ref;
	return node->start;
}

int
drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
		   unsigned long start, unsigned long size)
{
	struct drm_sman_mm *sman_mm;
	struct drm_mm *mm;
	int ret;

	BUG_ON(manager >= sman->num_managers);

	sman_mm = &sman->mm[manager];
	mm = kzalloc(sizeof(*mm), GFP_KERNEL);
	if (!mm) {
		return -ENOMEM;
	}
	sman_mm->private = mm;
	ret = drm_mm_init(mm, start, size);

	if (ret) {
		kfree(mm);
		return ret;
	}

	sman_mm->allocate = drm_sman_mm_allocate;
	sman_mm->free = drm_sman_mm_free;
	sman_mm->destroy = drm_sman_mm_destroy;
	sman_mm->offset = drm_sman_mm_offset;

	return 0;
}

EXPORT_SYMBOL(drm_sman_set_range);

int
drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
		     struct drm_sman_mm * allocator)
{
	BUG_ON(manager >= sman->num_managers);
	sman->mm[manager] = *allocator;

	return 0;
}
EXPORT_SYMBOL(drm_sman_set_manager);

static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman,
						 unsigned long owner)
{
	int ret;
	struct drm_hash_item *owner_hash_item;
	struct drm_owner_item *owner_item;

	ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
	if (!ret) {
		return drm_hash_entry(owner_hash_item, struct drm_owner_item,
				      owner_hash);
	}

	owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
	if (!owner_item)
		goto out;

	INIT_LIST_HEAD(&owner_item->mem_blocks);
	owner_item->owner_hash.key = owner;
	if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
		goto out1;

	list_add_tail(&owner_item->sman_list, &sman->owner_items);
	return owner_item;

out1:
	kfree(owner_item);
out:
	return NULL;
}

struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
				    unsigned long size, unsigned alignment,
				    unsigned long owner)
{
	void *tmp;
	struct drm_sman_mm *sman_mm;
	struct drm_owner_item *owner_item;
	struct drm_memblock_item *memblock;

	BUG_ON(manager >= sman->num_managers);

	sman_mm = &sman->mm[manager];
	tmp = sman_mm->allocate(sman_mm->private, size, alignment);

	if (!tmp) {
		return NULL;
	}

	memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);

	if (!memblock)
		goto out;

	memblock->mm_info = tmp;
	memblock->mm = sman_mm;
	memblock->sman = sman;

	if (drm_ht_just_insert_please
	    (&sman->user_hash_tab, &memblock->user_hash,
	     (unsigned long)memblock, 32, 0, 0))
		goto out1;

	owner_item = drm_sman_get_owner_item(sman, owner);
	if (!owner_item)
		goto out2;

	list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);

	return memblock;

out2:
	drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
out1:
	kfree(memblock);
out:
	sman_mm->free(sman_mm->private, tmp);

	return NULL;
}

EXPORT_SYMBOL(drm_sman_alloc);

static void drm_sman_free(struct drm_memblock_item *item)
{
	struct drm_sman *sman = item->sman;

	list_del(&item->owner_list);
	drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
	item->mm->free(item->mm->private, item->mm_info);
	kfree(item);
}

int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
{
	struct drm_hash_item *hash_item;
	struct drm_memblock_item *memblock_item;

	if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
		return -EINVAL;

	memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
				       user_hash);
	drm_sman_free(memblock_item);
	return 0;
}

EXPORT_SYMBOL(drm_sman_free_key);

static void drm_sman_remove_owner(struct drm_sman *sman,
				  struct drm_owner_item *owner_item)
{
	list_del(&owner_item->sman_list);
	drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
	kfree(owner_item);
}

int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
{

	struct drm_hash_item *hash_item;
	struct drm_owner_item *owner_item;

	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
		return -1;
	}

	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
	if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
		drm_sman_remove_owner(sman, owner_item);
		return -1;
	}

	return 0;
}

EXPORT_SYMBOL(drm_sman_owner_clean);

static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
				      struct drm_owner_item *owner_item)
{
	struct drm_memblock_item *entry, *next;

	list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
				 owner_list) {
		drm_sman_free(entry);
	}
	drm_sman_remove_owner(sman, owner_item);
}

void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
{

	struct drm_hash_item *hash_item;
	struct drm_owner_item *owner_item;

	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {

		return;
	}

	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
	drm_sman_do_owner_cleanup(sman, owner_item);
}

EXPORT_SYMBOL(drm_sman_owner_cleanup);

void drm_sman_cleanup(struct drm_sman *sman)
{
	struct drm_owner_item *entry, *next;
	unsigned int i;
	struct drm_sman_mm *sman_mm;

	list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
		drm_sman_do_owner_cleanup(sman, entry);
	}
	if (sman->mm) {
		for (i = 0; i < sman->num_managers; ++i) {
			sman_mm = &sman->mm[i];
			if (sman_mm->private) {
				sman_mm->destroy(sman_mm->private);
				sman_mm->private = NULL;
			}
		}
	}
}

EXPORT_SYMBOL(drm_sman_cleanup);
Commit	Line	Data
3a1bd924 TH	1	/**************************************************************************
	2	*
	3	* Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
	4	* All Rights Reserved.
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a
	7	* copy of this software and associated documentation files (the
	8	* "Software"), to deal in the Software without restriction, including
	9	* without limitation the rights to use, copy, modify, merge, publish,
	10	* distribute, sub license, and/or sell copies of the Software, and to
	11	* permit persons to whom the Software is furnished to do so, subject to
	12	* the following conditions:
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
	18	* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	19	* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
	20	* USE OR OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* The above copyright notice and this permission notice (including the
	23	* next paragraph) shall be included in all copies or substantial portions
	24	* of the Software.
	25	*
	26	*
	27	**************************************************************************/
	28	/*
	29	* Simple memory manager interface that keeps track on allocate regions on a
	30	* per "owner" basis. All regions associated with an "owner" can be released
	31	* with a simple call. Typically if the "owner" exists. The owner is any
	32	* "unsigned long" identifier. Can typically be a pointer to a file private
	33	* struct or a context identifier.
	34	*
	35	* Authors:
96de0e25	36	* Thomas Hellström <thomas-at-tungstengraphics-dot-com>
3a1bd924 TH	37	*/
3a1bd924 TH	38
2d1a8a48	39	#include <linux/export.h>
3a1bd924 TH	40	#include "drm_sman.h"
3a1bd924 TH	41
e0be428e DA	42	struct drm_owner_item {
e0be428e DA	43	struct drm_hash_item owner_hash;
3a1bd924 TH	44	struct list_head sman_list;
3a1bd924 TH	45	struct list_head mem_blocks;
e0be428e	46	};
3a1bd924	47
9698b4db	48	void drm_sman_takedown(struct drm_sman * sman)
3a1bd924 TH	49	{
	50	drm_ht_remove(&sman->user_hash_tab);
	51	drm_ht_remove(&sman->owner_hash_tab);
9a298b2a	52	kfree(sman->mm);
3a1bd924 TH	53	}
	54
	55	EXPORT_SYMBOL(drm_sman_takedown);
	56
	57	int
9698b4db	58	drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
3a1bd924 TH	59	unsigned int user_order, unsigned int owner_order)
	60	{
	61	int ret = 0;
	62
288db882	63	sman->mm = kcalloc(num_managers, sizeof(*sman->mm), GFP_KERNEL);
3a1bd924 TH	64	if (!sman->mm) {
	65	ret = -ENOMEM;
	66	goto out;
	67	}
	68	sman->num_managers = num_managers;
	69	INIT_LIST_HEAD(&sman->owner_items);
	70	ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
	71	if (ret)
	72	goto out1;
	73	ret = drm_ht_create(&sman->user_hash_tab, user_order);
	74	if (!ret)
	75	goto out;
	76
	77	drm_ht_remove(&sman->owner_hash_tab);
	78	out1:
9a298b2a	79	kfree(sman->mm);
3a1bd924 TH	80	out:
	81	return ret;
	82	}
	83
	84	EXPORT_SYMBOL(drm_sman_init);
	85
	86	static void drm_sman_mm_allocate(void private, unsigned long size,
	87	unsigned alignment)
	88	{
55910517 DA	89	struct drm_mm mm = (struct drm_mm ) private;
55910517 DA	90	struct drm_mm_node *tmp;
3a1bd924	91
a1d0fcf5	92	tmp = drm_mm_search_free(mm, size, alignment, 1);
3a1bd924 TH	93	if (!tmp) {
	94	return NULL;
	95	}
	96	tmp = drm_mm_get_block(tmp, size, alignment);
	97	return tmp;
	98	}
	99
	100	static void drm_sman_mm_free(void private, void ref)
	101	{
55910517	102	struct drm_mm_node node = (struct drm_mm_node ) ref;
3a1bd924	103
1d58420b	104	drm_mm_put_block(node);
3a1bd924 TH	105	}
	106
	107	static void drm_sman_mm_destroy(void *private)
	108	{
55910517	109	struct drm_mm mm = (struct drm_mm ) private;
3a1bd924	110	drm_mm_takedown(mm);
9a298b2a	111	kfree(mm);
3a1bd924 TH	112	}
3a1bd924 TH	113
fb41e54b	114	static unsigned long drm_sman_mm_offset(void private, void ref)
3a1bd924	115	{
55910517	116	struct drm_mm_node node = (struct drm_mm_node ) ref;
3a1bd924 TH	117	return node->start;
	118	}
	119
	120	int
9698b4db	121	drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
3a1bd924 TH	122	unsigned long start, unsigned long size)
3a1bd924 TH	123	{
9698b4db	124	struct drm_sman_mm *sman_mm;
55910517	125	struct drm_mm *mm;
3a1bd924 TH	126	int ret;
	127
	128	BUG_ON(manager >= sman->num_managers);
	129
	130	sman_mm = &sman->mm[manager];
9a298b2a	131	mm = kzalloc(sizeof(*mm), GFP_KERNEL);
3a1bd924 TH	132	if (!mm) {
	133	return -ENOMEM;
	134	}
	135	sman_mm->private = mm;
	136	ret = drm_mm_init(mm, start, size);
	137
	138	if (ret) {
9a298b2a	139	kfree(mm);
3a1bd924 TH	140	return ret;
	141	}
	142
	143	sman_mm->allocate = drm_sman_mm_allocate;
	144	sman_mm->free = drm_sman_mm_free;
	145	sman_mm->destroy = drm_sman_mm_destroy;
	146	sman_mm->offset = drm_sman_mm_offset;
	147
	148	return 0;
	149	}
	150
	151	EXPORT_SYMBOL(drm_sman_set_range);
	152
	153	int
9698b4db DA	154	drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
9698b4db DA	155	struct drm_sman_mm * allocator)
3a1bd924 TH	156	{
	157	BUG_ON(manager >= sman->num_managers);
	158	sman->mm[manager] = *allocator;
	159
	160	return 0;
	161	}
a1e85378	162	EXPORT_SYMBOL(drm_sman_set_manager);
3a1bd924	163
e0be428e	164	static struct drm_owner_item drm_sman_get_owner_item(struct drm_sman sman,
3a1bd924 TH	165	unsigned long owner)
	166	{
	167	int ret;
e0be428e DA	168	struct drm_hash_item *owner_hash_item;
e0be428e DA	169	struct drm_owner_item *owner_item;
3a1bd924 TH	170
	171	ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
	172	if (!ret) {
e0be428e	173	return drm_hash_entry(owner_hash_item, struct drm_owner_item,
3a1bd924 TH	174	owner_hash);
	175	}
	176
9a298b2a	177	owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
3a1bd924 TH	178	if (!owner_item)
	179	goto out;
	180
	181	INIT_LIST_HEAD(&owner_item->mem_blocks);
	182	owner_item->owner_hash.key = owner;
	183	if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
	184	goto out1;
	185
	186	list_add_tail(&owner_item->sman_list, &sman->owner_items);
	187	return owner_item;
	188
	189	out1:
9a298b2a	190	kfree(owner_item);
3a1bd924 TH	191	out:
	192	return NULL;
	193	}
	194
9698b4db	195	struct drm_memblock_item drm_sman_alloc(struct drm_sman sman, unsigned int manager,
3a1bd924 TH	196	unsigned long size, unsigned alignment,
	197	unsigned long owner)
	198	{
	199	void *tmp;
9698b4db	200	struct drm_sman_mm *sman_mm;
e0be428e	201	struct drm_owner_item *owner_item;
9698b4db	202	struct drm_memblock_item *memblock;
3a1bd924 TH	203
	204	BUG_ON(manager >= sman->num_managers);
	205
	206	sman_mm = &sman->mm[manager];
	207	tmp = sman_mm->allocate(sman_mm->private, size, alignment);
	208
	209	if (!tmp) {
	210	return NULL;
	211	}
	212
9a298b2a	213	memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
3a1bd924 TH	214
	215	if (!memblock)
	216	goto out;
	217
	218	memblock->mm_info = tmp;
	219	memblock->mm = sman_mm;
	220	memblock->sman = sman;
	221
	222	if (drm_ht_just_insert_please
	223	(&sman->user_hash_tab, &memblock->user_hash,
	224	(unsigned long)memblock, 32, 0, 0))
	225	goto out1;
	226
	227	owner_item = drm_sman_get_owner_item(sman, owner);
	228	if (!owner_item)
	229	goto out2;
	230
	231	list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
	232
	233	return memblock;
	234
	235	out2:
	236	drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
	237	out1:
9a298b2a	238	kfree(memblock);
3a1bd924 TH	239	out:
	240	sman_mm->free(sman_mm->private, tmp);
	241
	242	return NULL;
	243	}
	244
	245	EXPORT_SYMBOL(drm_sman_alloc);
	246
9698b4db	247	static void drm_sman_free(struct drm_memblock_item *item)
3a1bd924	248	{
9698b4db	249	struct drm_sman *sman = item->sman;
3a1bd924 TH	250
	251	list_del(&item->owner_list);
	252	drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
	253	item->mm->free(item->mm->private, item->mm_info);
9a298b2a	254	kfree(item);
3a1bd924 TH	255	}
3a1bd924 TH	256
9698b4db	257	int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
3a1bd924	258	{
e0be428e	259	struct drm_hash_item *hash_item;
9698b4db	260	struct drm_memblock_item *memblock_item;
3a1bd924 TH	261
	262	if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
	263	return -EINVAL;
	264
9698b4db DA	265	memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
9698b4db DA	266	user_hash);
3a1bd924 TH	267	drm_sman_free(memblock_item);
	268	return 0;
	269	}
	270
	271	EXPORT_SYMBOL(drm_sman_free_key);
	272
9698b4db	273	static void drm_sman_remove_owner(struct drm_sman *sman,
e0be428e	274	struct drm_owner_item *owner_item)
3a1bd924 TH	275	{
	276	list_del(&owner_item->sman_list);
	277	drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
9a298b2a	278	kfree(owner_item);
3a1bd924 TH	279	}
3a1bd924 TH	280
9698b4db	281	int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
3a1bd924 TH	282	{
3a1bd924 TH	283
e0be428e DA	284	struct drm_hash_item *hash_item;
e0be428e DA	285	struct drm_owner_item *owner_item;
3a1bd924 TH	286
	287	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
	288	return -1;
	289	}
	290
e0be428e	291	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
3a1bd924 TH	292	if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
	293	drm_sman_remove_owner(sman, owner_item);
	294	return -1;
	295	}
	296
	297	return 0;
	298	}
	299
	300	EXPORT_SYMBOL(drm_sman_owner_clean);
	301
9698b4db	302	static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
e0be428e	303	struct drm_owner_item *owner_item)
3a1bd924	304	{
9698b4db	305	struct drm_memblock_item entry, next;
3a1bd924 TH	306
	307	list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
	308	owner_list) {
	309	drm_sman_free(entry);
	310	}
	311	drm_sman_remove_owner(sman, owner_item);
	312	}
	313
9698b4db	314	void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
3a1bd924 TH	315	{
3a1bd924 TH	316
e0be428e DA	317	struct drm_hash_item *hash_item;
e0be428e DA	318	struct drm_owner_item *owner_item;
3a1bd924 TH	319
	320	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
	321
	322	return;
	323	}
	324
e0be428e	325	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
3a1bd924 TH	326	drm_sman_do_owner_cleanup(sman, owner_item);
	327	}
	328
	329	EXPORT_SYMBOL(drm_sman_owner_cleanup);
	330
9698b4db	331	void drm_sman_cleanup(struct drm_sman *sman)
3a1bd924	332	{
e0be428e	333	struct drm_owner_item entry, next;
3a1bd924	334	unsigned int i;
9698b4db	335	struct drm_sman_mm *sman_mm;
3a1bd924 TH	336
	337	list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
	338	drm_sman_do_owner_cleanup(sman, entry);
	339	}
	340	if (sman->mm) {
	341	for (i = 0; i < sman->num_managers; ++i) {
	342	sman_mm = &sman->mm[i];
	343	if (sman_mm->private) {
	344	sman_mm->destroy(sman_mm->private);
	345	sman_mm->private = NULL;
	346	}
	347	}
	348	}
	349	}
	350
	351	EXPORT_SYMBOL(drm_sman_cleanup);