[GitHub/mt8127/android_kernel_alcatel_ttab.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 "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 = (struct drm_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	*/
	38
	39	#include "drm_sman.h"
	40
e0be428e DA	41	struct drm_owner_item {
e0be428e DA	42	struct drm_hash_item owner_hash;
3a1bd924 TH	43	struct list_head sman_list;
3a1bd924 TH	44	struct list_head mem_blocks;
e0be428e	45	};
3a1bd924	46
9698b4db	47	void drm_sman_takedown(struct drm_sman * sman)
3a1bd924 TH	48	{
	49	drm_ht_remove(&sman->user_hash_tab);
	50	drm_ht_remove(&sman->owner_hash_tab);
9a298b2a	51	kfree(sman->mm);
3a1bd924 TH	52	}
	53
	54	EXPORT_SYMBOL(drm_sman_takedown);
	55
	56	int
9698b4db	57	drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
3a1bd924 TH	58	unsigned int user_order, unsigned int owner_order)
	59	{
	60	int ret = 0;
	61
9a298b2a EA	62	sman->mm = (struct drm_sman_mm *) kcalloc(num_managers,
	63	sizeof(*sman->mm),
	64	GFP_KERNEL);
3a1bd924 TH	65	if (!sman->mm) {
	66	ret = -ENOMEM;
	67	goto out;
	68	}
	69	sman->num_managers = num_managers;
	70	INIT_LIST_HEAD(&sman->owner_items);
	71	ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
	72	if (ret)
	73	goto out1;
	74	ret = drm_ht_create(&sman->user_hash_tab, user_order);
	75	if (!ret)
	76	goto out;
	77
	78	drm_ht_remove(&sman->owner_hash_tab);
	79	out1:
9a298b2a	80	kfree(sman->mm);
3a1bd924 TH	81	out:
	82	return ret;
	83	}
	84
	85	EXPORT_SYMBOL(drm_sman_init);
	86
	87	static void drm_sman_mm_allocate(void private, unsigned long size,
	88	unsigned alignment)
	89	{
55910517 DA	90	struct drm_mm mm = (struct drm_mm ) private;
55910517 DA	91	struct drm_mm_node *tmp;
3a1bd924	92
a1d0fcf5	93	tmp = drm_mm_search_free(mm, size, alignment, 1);
3a1bd924 TH	94	if (!tmp) {
	95	return NULL;
	96	}
	97	tmp = drm_mm_get_block(tmp, size, alignment);
	98	return tmp;
	99	}
	100
	101	static void drm_sman_mm_free(void private, void ref)
	102	{
55910517	103	struct drm_mm_node node = (struct drm_mm_node ) ref;
3a1bd924	104
1d58420b	105	drm_mm_put_block(node);
3a1bd924 TH	106	}
	107
	108	static void drm_sman_mm_destroy(void *private)
	109	{
55910517	110	struct drm_mm mm = (struct drm_mm ) private;
3a1bd924	111	drm_mm_takedown(mm);
9a298b2a	112	kfree(mm);
3a1bd924 TH	113	}
3a1bd924 TH	114
fb41e54b	115	static unsigned long drm_sman_mm_offset(void private, void ref)
3a1bd924	116	{
55910517	117	struct drm_mm_node node = (struct drm_mm_node ) ref;
3a1bd924 TH	118	return node->start;
	119	}
	120
	121	int
9698b4db	122	drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
3a1bd924 TH	123	unsigned long start, unsigned long size)
3a1bd924 TH	124	{
9698b4db	125	struct drm_sman_mm *sman_mm;
55910517	126	struct drm_mm *mm;
3a1bd924 TH	127	int ret;
	128
	129	BUG_ON(manager >= sman->num_managers);
	130
	131	sman_mm = &sman->mm[manager];
9a298b2a	132	mm = kzalloc(sizeof(*mm), GFP_KERNEL);
3a1bd924 TH	133	if (!mm) {
	134	return -ENOMEM;
	135	}
	136	sman_mm->private = mm;
	137	ret = drm_mm_init(mm, start, size);
	138
	139	if (ret) {
9a298b2a	140	kfree(mm);
3a1bd924 TH	141	return ret;
	142	}
	143
	144	sman_mm->allocate = drm_sman_mm_allocate;
	145	sman_mm->free = drm_sman_mm_free;
	146	sman_mm->destroy = drm_sman_mm_destroy;
	147	sman_mm->offset = drm_sman_mm_offset;
	148
	149	return 0;
	150	}
	151
	152	EXPORT_SYMBOL(drm_sman_set_range);
	153
	154	int
9698b4db DA	155	drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
9698b4db DA	156	struct drm_sman_mm * allocator)
3a1bd924 TH	157	{
	158	BUG_ON(manager >= sman->num_managers);
	159	sman->mm[manager] = *allocator;
	160
	161	return 0;
	162	}
a1e85378	163	EXPORT_SYMBOL(drm_sman_set_manager);
3a1bd924	164
e0be428e	165	static struct drm_owner_item drm_sman_get_owner_item(struct drm_sman sman,
3a1bd924 TH	166	unsigned long owner)
	167	{
	168	int ret;
e0be428e DA	169	struct drm_hash_item *owner_hash_item;
e0be428e DA	170	struct drm_owner_item *owner_item;
3a1bd924 TH	171
	172	ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
	173	if (!ret) {
e0be428e	174	return drm_hash_entry(owner_hash_item, struct drm_owner_item,
3a1bd924 TH	175	owner_hash);
	176	}
	177
9a298b2a	178	owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
3a1bd924 TH	179	if (!owner_item)
	180	goto out;
	181
	182	INIT_LIST_HEAD(&owner_item->mem_blocks);
	183	owner_item->owner_hash.key = owner;
	184	if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
	185	goto out1;
	186
	187	list_add_tail(&owner_item->sman_list, &sman->owner_items);
	188	return owner_item;
	189
	190	out1:
9a298b2a	191	kfree(owner_item);
3a1bd924 TH	192	out:
	193	return NULL;
	194	}
	195
9698b4db	196	struct drm_memblock_item drm_sman_alloc(struct drm_sman sman, unsigned int manager,
3a1bd924 TH	197	unsigned long size, unsigned alignment,
	198	unsigned long owner)
	199	{
	200	void *tmp;
9698b4db	201	struct drm_sman_mm *sman_mm;
e0be428e	202	struct drm_owner_item *owner_item;
9698b4db	203	struct drm_memblock_item *memblock;
3a1bd924 TH	204
	205	BUG_ON(manager >= sman->num_managers);
	206
	207	sman_mm = &sman->mm[manager];
	208	tmp = sman_mm->allocate(sman_mm->private, size, alignment);
	209
	210	if (!tmp) {
	211	return NULL;
	212	}
	213
9a298b2a	214	memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
3a1bd924 TH	215
	216	if (!memblock)
	217	goto out;
	218
	219	memblock->mm_info = tmp;
	220	memblock->mm = sman_mm;
	221	memblock->sman = sman;
	222
	223	if (drm_ht_just_insert_please
	224	(&sman->user_hash_tab, &memblock->user_hash,
	225	(unsigned long)memblock, 32, 0, 0))
	226	goto out1;
	227
	228	owner_item = drm_sman_get_owner_item(sman, owner);
	229	if (!owner_item)
	230	goto out2;
	231
	232	list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
	233
	234	return memblock;
	235
	236	out2:
	237	drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
	238	out1:
9a298b2a	239	kfree(memblock);
3a1bd924 TH	240	out:
	241	sman_mm->free(sman_mm->private, tmp);
	242
	243	return NULL;
	244	}
	245
	246	EXPORT_SYMBOL(drm_sman_alloc);
	247
9698b4db	248	static void drm_sman_free(struct drm_memblock_item *item)
3a1bd924	249	{
9698b4db	250	struct drm_sman *sman = item->sman;
3a1bd924 TH	251
	252	list_del(&item->owner_list);
	253	drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
	254	item->mm->free(item->mm->private, item->mm_info);
9a298b2a	255	kfree(item);
3a1bd924 TH	256	}
3a1bd924 TH	257
9698b4db	258	int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
3a1bd924	259	{
e0be428e	260	struct drm_hash_item *hash_item;
9698b4db	261	struct drm_memblock_item *memblock_item;
3a1bd924 TH	262
	263	if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
	264	return -EINVAL;
	265
9698b4db DA	266	memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
9698b4db DA	267	user_hash);
3a1bd924 TH	268	drm_sman_free(memblock_item);
	269	return 0;
	270	}
	271
	272	EXPORT_SYMBOL(drm_sman_free_key);
	273
9698b4db	274	static void drm_sman_remove_owner(struct drm_sman *sman,
e0be428e	275	struct drm_owner_item *owner_item)
3a1bd924 TH	276	{
	277	list_del(&owner_item->sman_list);
	278	drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
9a298b2a	279	kfree(owner_item);
3a1bd924 TH	280	}
3a1bd924 TH	281
9698b4db	282	int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
3a1bd924 TH	283	{
3a1bd924 TH	284
e0be428e DA	285	struct drm_hash_item *hash_item;
e0be428e DA	286	struct drm_owner_item *owner_item;
3a1bd924 TH	287
	288	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
	289	return -1;
	290	}
	291
e0be428e	292	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
3a1bd924 TH	293	if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
	294	drm_sman_remove_owner(sman, owner_item);
	295	return -1;
	296	}
	297
	298	return 0;
	299	}
	300
	301	EXPORT_SYMBOL(drm_sman_owner_clean);
	302
9698b4db	303	static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
e0be428e	304	struct drm_owner_item *owner_item)
3a1bd924	305	{
9698b4db	306	struct drm_memblock_item entry, next;
3a1bd924 TH	307
	308	list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
	309	owner_list) {
	310	drm_sman_free(entry);
	311	}
	312	drm_sman_remove_owner(sman, owner_item);
	313	}
	314
9698b4db	315	void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
3a1bd924 TH	316	{
3a1bd924 TH	317
e0be428e DA	318	struct drm_hash_item *hash_item;
e0be428e DA	319	struct drm_owner_item *owner_item;
3a1bd924 TH	320
	321	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
	322
	323	return;
	324	}
	325
e0be428e	326	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
3a1bd924 TH	327	drm_sman_do_owner_cleanup(sman, owner_item);
	328	}
	329
	330	EXPORT_SYMBOL(drm_sman_owner_cleanup);
	331
9698b4db	332	void drm_sman_cleanup(struct drm_sman *sman)
3a1bd924	333	{
e0be428e	334	struct drm_owner_item entry, next;
3a1bd924	335	unsigned int i;
9698b4db	336	struct drm_sman_mm *sman_mm;
3a1bd924 TH	337
	338	list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
	339	drm_sman_do_owner_cleanup(sman, entry);
	340	}
	341	if (sman->mm) {
	342	for (i = 0; i < sman->num_managers; ++i) {
	343	sman_mm = &sman->mm[i];
	344	if (sman_mm->private) {
	345	sman_mm->destroy(sman_mm->private);
	346	sman_mm->private = NULL;
	347	}
	348	}
	349	}
	350	}
	351
	352	EXPORT_SYMBOL(drm_sman_cleanup);