[deliverable/linux.git] / drivers / gpu / drm / qxl / qxl_object.c

/*
 * Copyright 2013 Red Hat Inc.
 *
 * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Dave Airlie
 *          Alon Levy
 */

#include "qxl_drv.h"
#include "qxl_object.h"

#include <linux/io-mapping.h>
static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
{
	struct qxl_bo *bo;
	struct qxl_device *qdev;

	bo = container_of(tbo, struct qxl_bo, tbo);
	qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;

	qxl_surface_evict(qdev, bo, false);
	qxl_fence_fini(&bo->fence);
	mutex_lock(&qdev->gem.mutex);
	list_del_init(&bo->list);
	mutex_unlock(&qdev->gem.mutex);
	drm_gem_object_release(&bo->gem_base);
	kfree(bo);
}

bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo)
{
	if (bo->destroy == &qxl_ttm_bo_destroy)
		return true;
	return false;
}

void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain)
{
	u32 c = 0;

	qbo->placement.fpfn = 0;
	qbo->placement.lpfn = 0;
	qbo->placement.placement = qbo->placements;
	qbo->placement.busy_placement = qbo->placements;
	if (domain & QXL_GEM_DOMAIN_VRAM)
		qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM;
	if (domain & QXL_GEM_DOMAIN_SURFACE)
		qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0;
	if (domain & QXL_GEM_DOMAIN_CPU)
		qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
	if (!c)
		qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
	qbo->placement.num_placement = c;
	qbo->placement.num_busy_placement = c;
}


int qxl_bo_create(struct qxl_device *qdev,
		  unsigned long size, bool kernel, u32 domain,
		  struct qxl_surface *surf,
		  struct qxl_bo **bo_ptr)
{
	struct qxl_bo *bo;
	enum ttm_bo_type type;
	int r;

	if (unlikely(qdev->mman.bdev.dev_mapping == NULL))
		qdev->mman.bdev.dev_mapping = qdev->ddev->dev_mapping;
	if (kernel)
		type = ttm_bo_type_kernel;
	else
		type = ttm_bo_type_device;
	*bo_ptr = NULL;
	bo = kzalloc(sizeof(struct qxl_bo), GFP_KERNEL);
	if (bo == NULL)
		return -ENOMEM;
	size = roundup(size, PAGE_SIZE);
	r = drm_gem_object_init(qdev->ddev, &bo->gem_base, size);
	if (unlikely(r)) {
		kfree(bo);
		return r;
	}
	bo->gem_base.driver_private = NULL;
	bo->type = domain;
	bo->pin_count = 0;
	bo->surface_id = 0;
	qxl_fence_init(qdev, &bo->fence);
	INIT_LIST_HEAD(&bo->list);
	atomic_set(&bo->reserve_count, 0);
	if (surf)
		bo->surf = *surf;

	qxl_ttm_placement_from_domain(bo, domain);

	r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,
			&bo->placement, 0, !kernel, NULL, size,
			NULL, &qxl_ttm_bo_destroy);
	if (unlikely(r != 0)) {
		if (r != -ERESTARTSYS)
			dev_err(qdev->dev,
				"object_init failed for (%lu, 0x%08X)\n",
				size, domain);
		return r;
	}
	*bo_ptr = bo;
	return 0;
}

int qxl_bo_kmap(struct qxl_bo *bo, void **ptr)
{
	bool is_iomem;
	int r;

	if (bo->kptr) {
		if (ptr)
			*ptr = bo->kptr;
		return 0;
	}
	r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
	if (r)
		return r;
	bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
	if (ptr)
		*ptr = bo->kptr;
	return 0;
}

void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev,
			      struct qxl_bo *bo, int page_offset)
{
	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
	void *rptr;
	int ret;
	struct io_mapping *map;

	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
		map = qdev->vram_mapping;
	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
		map = qdev->surface_mapping;
	else
		goto fallback;

	(void) ttm_mem_io_lock(man, false);
	ret = ttm_mem_io_reserve(bo->tbo.bdev, &bo->tbo.mem);
	ttm_mem_io_unlock(man);

	return io_mapping_map_atomic_wc(map, bo->tbo.mem.bus.offset + page_offset);
fallback:
	if (bo->kptr) {
		rptr = bo->kptr + (page_offset * PAGE_SIZE);
		return rptr;
	}

	ret = qxl_bo_kmap(bo, &rptr);
	if (ret)
		return NULL;

	rptr += page_offset * PAGE_SIZE;
	return rptr;
}

void qxl_bo_kunmap(struct qxl_bo *bo)
{
	if (bo->kptr == NULL)
		return;
	bo->kptr = NULL;
	ttm_bo_kunmap(&bo->kmap);
}

void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
			       struct qxl_bo *bo, void *pmap)
{
	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
	struct io_mapping *map;

	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
		map = qdev->vram_mapping;
	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
		map = qdev->surface_mapping;
	else
		goto fallback;

	io_mapping_unmap_atomic(pmap);

	(void) ttm_mem_io_lock(man, false);
	ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem);
	ttm_mem_io_unlock(man);
	return ;
 fallback:
	qxl_bo_kunmap(bo);
}

void qxl_bo_unref(struct qxl_bo **bo)
{
	struct ttm_buffer_object *tbo;

	if ((*bo) == NULL)
		return;
	tbo = &((*bo)->tbo);
	ttm_bo_unref(&tbo);
	if (tbo == NULL)
		*bo = NULL;
}

struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo)
{
	ttm_bo_reference(&bo->tbo);
	return bo;
}

int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
{
	struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
	int r, i;

	if (bo->pin_count) {
		bo->pin_count++;
		if (gpu_addr)
			*gpu_addr = qxl_bo_gpu_offset(bo);
		return 0;
	}
	qxl_ttm_placement_from_domain(bo, domain);
	for (i = 0; i < bo->placement.num_placement; i++)
		bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
	if (likely(r == 0)) {
		bo->pin_count = 1;
		if (gpu_addr != NULL)
			*gpu_addr = qxl_bo_gpu_offset(bo);
	}
	if (unlikely(r != 0))
		dev_err(qdev->dev, "%p pin failed\n", bo);
	return r;
}

int qxl_bo_unpin(struct qxl_bo *bo)
{
	struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
	int r, i;

	if (!bo->pin_count) {
		dev_warn(qdev->dev, "%p unpin not necessary\n", bo);
		return 0;
	}
	bo->pin_count--;
	if (bo->pin_count)
		return 0;
	for (i = 0; i < bo->placement.num_placement; i++)
		bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
	if (unlikely(r != 0))
		dev_err(qdev->dev, "%p validate failed for unpin\n", bo);
	return r;
}

void qxl_bo_force_delete(struct qxl_device *qdev)
{
	struct qxl_bo *bo, *n;

	if (list_empty(&qdev->gem.objects))
		return;
	dev_err(qdev->dev, "Userspace still has active objects !\n");
	list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) {
		mutex_lock(&qdev->ddev->struct_mutex);
		dev_err(qdev->dev, "%p %p %lu %lu force free\n",
			&bo->gem_base, bo, (unsigned long)bo->gem_base.size,
			*((unsigned long *)&bo->gem_base.refcount));
		mutex_lock(&qdev->gem.mutex);
		list_del_init(&bo->list);
		mutex_unlock(&qdev->gem.mutex);
		/* this should unref the ttm bo */
		drm_gem_object_unreference(&bo->gem_base);
		mutex_unlock(&qdev->ddev->struct_mutex);
	}
}

int qxl_bo_init(struct qxl_device *qdev)
{
	return qxl_ttm_init(qdev);
}

void qxl_bo_fini(struct qxl_device *qdev)
{
	qxl_ttm_fini(qdev);
}

int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo)
{
	int ret;
	if (bo->type == QXL_GEM_DOMAIN_SURFACE && bo->surface_id == 0) {
		/* allocate a surface id for this surface now */
		ret = qxl_surface_id_alloc(qdev, bo);
		if (ret)
			return ret;

		ret = qxl_hw_surface_alloc(qdev, bo, NULL);
		if (ret)
			return ret;
	}
	return 0;
}

void qxl_bo_list_unreserve(struct qxl_reloc_list *reloc_list, bool failed)
{
	struct qxl_bo_list *entry, *sf;

	list_for_each_entry_safe(entry, sf, &reloc_list->bos, lhead) {
		qxl_bo_unreserve(entry->bo);
		list_del(&entry->lhead);
		kfree(entry);
	}
}

int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo)
{
	struct qxl_bo_list *entry;
	int ret;

	list_for_each_entry(entry, &reloc_list->bos, lhead) {
		if (entry->bo == bo)
			return 0;
	}

	entry = kmalloc(sizeof(struct qxl_bo_list), GFP_KERNEL);
	if (!entry)
		return -ENOMEM;

	entry->bo = bo;
	list_add(&entry->lhead, &reloc_list->bos);

	ret = qxl_bo_reserve(bo, false);
	if (ret)
		return ret;

	if (!bo->pin_count) {
		qxl_ttm_placement_from_domain(bo, bo->type);
		ret = ttm_bo_validate(&bo->tbo, &bo->placement,
				      true, false);
		if (ret)
			return ret;
	}

	/* allocate a surface for reserved + validated buffers */
	ret = qxl_bo_check_id(bo->gem_base.dev->dev_private, bo);
	if (ret)
		return ret;
	return 0;
}
Commit	Line	Data
f64122c1 DA	1	/*
	2	* Copyright 2013 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	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 NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Dave Airlie
	23	* Alon Levy
	24	*/
	25
	26	#include "qxl_drv.h"
	27	#include "qxl_object.h"
	28
	29	#include <linux/io-mapping.h>
	30	static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
	31	{
	32	struct qxl_bo *bo;
	33	struct qxl_device *qdev;
	34
	35	bo = container_of(tbo, struct qxl_bo, tbo);
	36	qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
	37
	38	qxl_surface_evict(qdev, bo, false);
	39	qxl_fence_fini(&bo->fence);
	40	mutex_lock(&qdev->gem.mutex);
	41	list_del_init(&bo->list);
	42	mutex_unlock(&qdev->gem.mutex);
	43	drm_gem_object_release(&bo->gem_base);
	44	kfree(bo);
	45	}
	46
	47	bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo)
	48	{
	49	if (bo->destroy == &qxl_ttm_bo_destroy)
	50	return true;
	51	return false;
	52	}
	53
	54	void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain)
	55	{
	56	u32 c = 0;
	57
	58	qbo->placement.fpfn = 0;
	59	qbo->placement.lpfn = 0;
	60	qbo->placement.placement = qbo->placements;
	61	qbo->placement.busy_placement = qbo->placements;
	62	if (domain & QXL_GEM_DOMAIN_VRAM)
	63	qbo->placements[c++] = TTM_PL_FLAG_CACHED \| TTM_PL_FLAG_VRAM;
	64	if (domain & QXL_GEM_DOMAIN_SURFACE)
65	qbo->placements[c++] = TTM_PL_FLAG_CACHED \| TTM_PL_FLAG_PRIV0;
66	if (domain & QXL_GEM_DOMAIN_CPU)
67	qbo->placements[c++] = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_SYSTEM;
68	if (!c)
69	qbo->placements[c++] = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_SYSTEM;
70	qbo->placement.num_placement = c;
71	qbo->placement.num_busy_placement = c;
72	}
73
74
75	int qxl_bo_create(struct qxl_device *qdev,
76	unsigned long size, bool kernel, u32 domain,
77	struct qxl_surface *surf,
78	struct qxl_bo **bo_ptr)
79	{
80	struct qxl_bo *bo;
81	enum ttm_bo_type type;
82	int r;
83
84	if (unlikely(qdev->mman.bdev.dev_mapping == NULL))
85	qdev->mman.bdev.dev_mapping = qdev->ddev->dev_mapping;
86	if (kernel)
87	type = ttm_bo_type_kernel;
88	else
89	type = ttm_bo_type_device;
90	*bo_ptr = NULL;
91	bo = kzalloc(sizeof(struct qxl_bo), GFP_KERNEL);
92	if (bo == NULL)
93	return -ENOMEM;
94	size = roundup(size, PAGE_SIZE);
95	r = drm_gem_object_init(qdev->ddev, &bo->gem_base, size);
96	if (unlikely(r)) {
97	kfree(bo);
98	return r;
99	}
100	bo->gem_base.driver_private = NULL;
101	bo->type = domain;
102	bo->pin_count = 0;
103	bo->surface_id = 0;
104	qxl_fence_init(qdev, &bo->fence);
105	INIT_LIST_HEAD(&bo->list);
106	atomic_set(&bo->reserve_count, 0);
107	if (surf)
108	bo->surf = *surf;
109
110	qxl_ttm_placement_from_domain(bo, domain);
111
112	r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,
113	&bo->placement, 0, !kernel, NULL, size,
114	NULL, &qxl_ttm_bo_destroy);
115	if (unlikely(r != 0)) {
116	if (r != -ERESTARTSYS)
117	dev_err(qdev->dev,
118	"object_init failed for (%lu, 0x%08X)\n",
119	size, domain);
120	return r;
121	}
122	*bo_ptr = bo;
123	return 0;
124	}
125
126	int qxl_bo_kmap(struct qxl_bo bo, void *ptr)
127	{
128	bool is_iomem;
129	int r;
130
131	if (bo->kptr) {
132	if (ptr)
133	*ptr = bo->kptr;
134	return 0;
135	}
136	r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
137	if (r)
138	return r;
139	bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
140	if (ptr)
141	*ptr = bo->kptr;
142	return 0;
143	}
144
145	void qxl_bo_kmap_atomic_page(struct qxl_device qdev,
146	struct qxl_bo *bo, int page_offset)
147	{
148	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
149	void *rptr;
150	int ret;
151	struct io_mapping *map;
152
153	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
154	map = qdev->vram_mapping;
155	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
156	map = qdev->surface_mapping;
157	else
158	goto fallback;
159
160	(void) ttm_mem_io_lock(man, false);
161	ret = ttm_mem_io_reserve(bo->tbo.bdev, &bo->tbo.mem);
162	ttm_mem_io_unlock(man);
163
164	return io_mapping_map_atomic_wc(map, bo->tbo.mem.bus.offset + page_offset);
165	fallback:
166	if (bo->kptr) {
167	rptr = bo->kptr + (page_offset * PAGE_SIZE);
168	return rptr;
169	}
170
171	ret = qxl_bo_kmap(bo, &rptr);
172	if (ret)
173	return NULL;
174
175	rptr += page_offset * PAGE_SIZE;
176	return rptr;
177	}
178
179	void qxl_bo_kunmap(struct qxl_bo *bo)
180	{
181	if (bo->kptr == NULL)
182	return;
183	bo->kptr = NULL;
184	ttm_bo_kunmap(&bo->kmap);
185	}
186
187	void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
188	struct qxl_bo bo, void pmap)
189	{
190	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
191	struct io_mapping *map;
192
193	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
194	map = qdev->vram_mapping;
195	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
196	map = qdev->surface_mapping;
197	else
198	goto fallback;
199
200	io_mapping_unmap_atomic(pmap);
201
202	(void) ttm_mem_io_lock(man, false);
203	ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem);
204	ttm_mem_io_unlock(man);
205	return ;
206	fallback:
207	qxl_bo_kunmap(bo);
208	}
209
210	void qxl_bo_unref(struct qxl_bo **bo)
211	{
212	struct ttm_buffer_object *tbo;
213
214	if ((*bo) == NULL)
215	return;
216	tbo = &((*bo)->tbo);
217	ttm_bo_unref(&tbo);
218	if (tbo == NULL)
219	*bo = NULL;
220	}
221
222	struct qxl_bo qxl_bo_ref(struct qxl_bo bo)
223	{
224	ttm_bo_reference(&bo->tbo);
225	return bo;
226	}
227
228	int qxl_bo_pin(struct qxl_bo bo, u32 domain, u64 gpu_addr)
229	{
230	struct qxl_device qdev = (struct qxl_device )bo->gem_base.dev->dev_private;
231	int r, i;
232
233	if (bo->pin_count) {
234	bo->pin_count++;
235	if (gpu_addr)
236	*gpu_addr = qxl_bo_gpu_offset(bo);
237	return 0;
238	}
239	qxl_ttm_placement_from_domain(bo, domain);
240	for (i = 0; i < bo->placement.num_placement; i++)
241	bo->placements[i] \|= TTM_PL_FLAG_NO_EVICT;
242	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
243	if (likely(r == 0)) {
244	bo->pin_count = 1;
245	if (gpu_addr != NULL)
246	*gpu_addr = qxl_bo_gpu_offset(bo);
247	}
248	if (unlikely(r != 0))
249	dev_err(qdev->dev, "%p pin failed\n", bo);
250	return r;
251	}
252
253	int qxl_bo_unpin(struct qxl_bo *bo)
254	{
255	struct qxl_device qdev = (struct qxl_device )bo->gem_base.dev->dev_private;
256	int r, i;
257
258	if (!bo->pin_count) {
259	dev_warn(qdev->dev, "%p unpin not necessary\n", bo);
260	return 0;
261	}
262	bo->pin_count--;
263	if (bo->pin_count)
264	return 0;
265	for (i = 0; i < bo->placement.num_placement; i++)
266	bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
267	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
268	if (unlikely(r != 0))
269	dev_err(qdev->dev, "%p validate failed for unpin\n", bo);
270	return r;
271	}
272
273	void qxl_bo_force_delete(struct qxl_device *qdev)
274	{
275	struct qxl_bo bo, n;
276
277	if (list_empty(&qdev->gem.objects))
278	return;
279	dev_err(qdev->dev, "Userspace still has active objects !\n");
280	list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) {
281	mutex_lock(&qdev->ddev->struct_mutex);
282	dev_err(qdev->dev, "%p %p %lu %lu force free\n",
283	&bo->gem_base, bo, (unsigned long)bo->gem_base.size,
284	((unsigned long )&bo->gem_base.refcount));
285	mutex_lock(&qdev->gem.mutex);
286	list_del_init(&bo->list);
287	mutex_unlock(&qdev->gem.mutex);
288	/* this should unref the ttm bo */
289	drm_gem_object_unreference(&bo->gem_base);
290	mutex_unlock(&qdev->ddev->struct_mutex);
291	}
292	}
293
294	int qxl_bo_init(struct qxl_device *qdev)
295	{
296	return qxl_ttm_init(qdev);
297	}
298
299	void qxl_bo_fini(struct qxl_device *qdev)
300	{
301	qxl_ttm_fini(qdev);
302	}
303
304	int qxl_bo_check_id(struct qxl_device qdev, struct qxl_bo bo)
305	{
306	int ret;
307	if (bo->type == QXL_GEM_DOMAIN_SURFACE && bo->surface_id == 0) {
308	/* allocate a surface id for this surface now */
309	ret = qxl_surface_id_alloc(qdev, bo);
310	if (ret)
311	return ret;
312
313	ret = qxl_hw_surface_alloc(qdev, bo, NULL);
314	if (ret)
315	return ret;
316	}
317	return 0;
318	}
319
320	void qxl_bo_list_unreserve(struct qxl_reloc_list *reloc_list, bool failed)
321	{
322	struct qxl_bo_list entry, sf;
323
324	list_for_each_entry_safe(entry, sf, &reloc_list->bos, lhead) {
325	qxl_bo_unreserve(entry->bo);
326	list_del(&entry->lhead);
327	kfree(entry);
328	}
329	}
330
331	int qxl_bo_list_add(struct qxl_reloc_list reloc_list, struct qxl_bo bo)
332	{
333	struct qxl_bo_list *entry;
334	int ret;
335
336	list_for_each_entry(entry, &reloc_list->bos, lhead) {
337	if (entry->bo == bo)
338	return 0;
339	}
340
341	entry = kmalloc(sizeof(struct qxl_bo_list), GFP_KERNEL);
342	if (!entry)
343	return -ENOMEM;
344
345	entry->bo = bo;
346	list_add(&entry->lhead, &reloc_list->bos);
347
348	ret = qxl_bo_reserve(bo, false);
349	if (ret)
350	return ret;
351
352	if (!bo->pin_count) {
353	qxl_ttm_placement_from_domain(bo, bo->type);
354	ret = ttm_bo_validate(&bo->tbo, &bo->placement,
355	true, false);
356	if (ret)
357	return ret;
358	}
359
360	/* allocate a surface for reserved + validated buffers */
361	ret = qxl_bo_check_id(bo->gem_base.dev->dev_private, bo);
362	if (ret)
363	return ret;
364	return 0;
365	}