[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);
	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, bool pinned)
{
	u32 c = 0;
	u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0;
	unsigned i;

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


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

	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->type = domain;
	bo->pin_count = pinned ? 1 : 0;
	bo->surface_id = 0;
	INIT_LIST_HEAD(&bo->list);

	if (surf)
		bo->surf = *surf;

	qxl_ttm_placement_from_domain(bo, domain, pinned);

	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;

	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, true);
	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].flags &= ~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;
}

int qxl_surf_evict(struct qxl_device *qdev)
{
	return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV0);
}

int qxl_vram_evict(struct qxl_device *qdev)
{
	return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_VRAM);
}
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);
f64122c1 DA	39	mutex_lock(&qdev->gem.mutex);
	40	list_del_init(&bo->list);
	41	mutex_unlock(&qdev->gem.mutex);
	42	drm_gem_object_release(&bo->gem_base);
	43	kfree(bo);
	44	}
	45
	46	bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo)
	47	{
	48	if (bo->destroy == &qxl_ttm_bo_destroy)
	49	return true;
	50	return false;
	51	}
	52
4f49ec92	53	void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned)
f64122c1 DA	54	{
f64122c1 DA	55	u32 c = 0;
4f49ec92	56	u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0;
f1217ed0	57	unsigned i;
f64122c1	58
f64122c1 DA	59	qbo->placement.placement = qbo->placements;
f64122c1 DA	60	qbo->placement.busy_placement = qbo->placements;
62c8ba7c	61	if (domain == QXL_GEM_DOMAIN_VRAM)
f1217ed0	62	qbo->placements[c++].flags = TTM_PL_FLAG_CACHED \| TTM_PL_FLAG_VRAM \| pflag;
62c8ba7c	63	if (domain == QXL_GEM_DOMAIN_SURFACE)
f1217ed0	64	qbo->placements[c++].flags = TTM_PL_FLAG_CACHED \| TTM_PL_FLAG_PRIV0 \| pflag;
62c8ba7c	65	if (domain == QXL_GEM_DOMAIN_CPU)
f1217ed0	66	qbo->placements[c++].flags = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_SYSTEM \| pflag;
f64122c1	67	if (!c)
f1217ed0	68	qbo->placements[c++].flags = TTM_PL_MASK_CACHING \| TTM_PL_FLAG_SYSTEM;
f64122c1 DA	69	qbo->placement.num_placement = c;
f64122c1 DA	70	qbo->placement.num_busy_placement = c;
f1217ed0 CK	71	for (i = 0; i < c; ++i) {
	72	qbo->placements[i].fpfn = 0;
	73	qbo->placements[i].lpfn = 0;
	74	}
f64122c1 DA	75	}
	76
	77
	78	int qxl_bo_create(struct qxl_device *qdev,
4f49ec92	79	unsigned long size, bool kernel, bool pinned, u32 domain,
f64122c1 DA	80	struct qxl_surface *surf,
	81	struct qxl_bo **bo_ptr)
	82	{
	83	struct qxl_bo *bo;
	84	enum ttm_bo_type type;
	85	int r;
	86
f64122c1 DA	87	if (kernel)
	88	type = ttm_bo_type_kernel;
	89	else
	90	type = ttm_bo_type_device;
	91	*bo_ptr = NULL;
	92	bo = kzalloc(sizeof(struct qxl_bo), GFP_KERNEL);
	93	if (bo == NULL)
	94	return -ENOMEM;
	95	size = roundup(size, PAGE_SIZE);
	96	r = drm_gem_object_init(qdev->ddev, &bo->gem_base, size);
	97	if (unlikely(r)) {
	98	kfree(bo);
	99	return r;
	100	}
f64122c1	101	bo->type = domain;
4f49ec92	102	bo->pin_count = pinned ? 1 : 0;
f64122c1	103	bo->surface_id = 0;
f64122c1	104	INIT_LIST_HEAD(&bo->list);
8002db63	105
f64122c1 DA	106	if (surf)
	107	bo->surf = *surf;
	108
4f49ec92	109	qxl_ttm_placement_from_domain(bo, domain, pinned);
f64122c1 DA	110
	111	r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,
	112	&bo->placement, 0, !kernel, NULL, size,
	113	NULL, &qxl_ttm_bo_destroy);
	114	if (unlikely(r != 0)) {
	115	if (r != -ERESTARTSYS)
	116	dev_err(qdev->dev,
	117	"object_init failed for (%lu, 0x%08X)\n",
	118	size, domain);
	119	return r;
	120	}
	121	*bo_ptr = bo;
	122	return 0;
	123	}
	124
	125	int qxl_bo_kmap(struct qxl_bo bo, void *ptr)
	126	{
	127	bool is_iomem;
	128	int r;
	129
	130	if (bo->kptr) {
	131	if (ptr)
	132	*ptr = bo->kptr;
	133	return 0;
	134	}
	135	r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
	136	if (r)
	137	return r;
	138	bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
	139	if (ptr)
	140	*ptr = bo->kptr;
	141	return 0;
	142	}
	143
	144	void qxl_bo_kmap_atomic_page(struct qxl_device qdev,
	145	struct qxl_bo *bo, int page_offset)
	146	{
	147	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
	148	void *rptr;
	149	int ret;
	150	struct io_mapping *map;
	151
	152	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
	153	map = qdev->vram_mapping;
	154	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
	155	map = qdev->surface_mapping;
	156	else
	157	goto fallback;
	158
	159	(void) ttm_mem_io_lock(man, false);
	160	ret = ttm_mem_io_reserve(bo->tbo.bdev, &bo->tbo.mem);
	161	ttm_mem_io_unlock(man);
	162
	163	return io_mapping_map_atomic_wc(map, bo->tbo.mem.bus.offset + page_offset);
	164	fallback:
	165	if (bo->kptr) {
	166	rptr = bo->kptr + (page_offset * PAGE_SIZE);
	167	return rptr;
	168	}
	169
	170	ret = qxl_bo_kmap(bo, &rptr);
	171	if (ret)
	172	return NULL;
	173
174	rptr += page_offset * PAGE_SIZE;
175	return rptr;
176	}
177
178	void qxl_bo_kunmap(struct qxl_bo *bo)
179	{
180	if (bo->kptr == NULL)
181	return;
182	bo->kptr = NULL;
183	ttm_bo_kunmap(&bo->kmap);
184	}
185
186	void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
187	struct qxl_bo bo, void pmap)
188	{
189	struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
190	struct io_mapping *map;
191
192	if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
193	map = qdev->vram_mapping;
194	else if (bo->tbo.mem.mem_type == TTM_PL_PRIV0)
195	map = qdev->surface_mapping;
196	else
197	goto fallback;
198
199	io_mapping_unmap_atomic(pmap);
200
201	(void) ttm_mem_io_lock(man, false);
202	ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem);
203	ttm_mem_io_unlock(man);
204	return ;
205	fallback:
206	qxl_bo_kunmap(bo);
207	}
208
209	void qxl_bo_unref(struct qxl_bo **bo)
210	{
211	struct ttm_buffer_object *tbo;
212
213	if ((*bo) == NULL)
214	return;
215	tbo = &((*bo)->tbo);
216	ttm_bo_unref(&tbo);
217	if (tbo == NULL)
218	*bo = NULL;
219	}
220
221	struct qxl_bo qxl_bo_ref(struct qxl_bo bo)
222	{
223	ttm_bo_reference(&bo->tbo);
224	return bo;
225	}
226
227	int qxl_bo_pin(struct qxl_bo bo, u32 domain, u64 gpu_addr)
228	{
229	struct qxl_device qdev = (struct qxl_device )bo->gem_base.dev->dev_private;
4f49ec92	230	int r;
f64122c1 DA	231
	232	if (bo->pin_count) {
	233	bo->pin_count++;
	234	if (gpu_addr)
	235	*gpu_addr = qxl_bo_gpu_offset(bo);
	236	return 0;
	237	}
4f49ec92	238	qxl_ttm_placement_from_domain(bo, domain, true);
f64122c1 DA	239	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
	240	if (likely(r == 0)) {
	241	bo->pin_count = 1;
	242	if (gpu_addr != NULL)
	243	*gpu_addr = qxl_bo_gpu_offset(bo);
	244	}
	245	if (unlikely(r != 0))
	246	dev_err(qdev->dev, "%p pin failed\n", bo);
	247	return r;
	248	}
	249
	250	int qxl_bo_unpin(struct qxl_bo *bo)
	251	{
	252	struct qxl_device qdev = (struct qxl_device )bo->gem_base.dev->dev_private;
	253	int r, i;
	254
	255	if (!bo->pin_count) {
	256	dev_warn(qdev->dev, "%p unpin not necessary\n", bo);
	257	return 0;
	258	}
	259	bo->pin_count--;
	260	if (bo->pin_count)
	261	return 0;
	262	for (i = 0; i < bo->placement.num_placement; i++)
f1217ed0	263	bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
f64122c1 DA	264	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);
	265	if (unlikely(r != 0))
	266	dev_err(qdev->dev, "%p validate failed for unpin\n", bo);
	267	return r;
	268	}
	269
	270	void qxl_bo_force_delete(struct qxl_device *qdev)
	271	{
	272	struct qxl_bo bo, n;
	273
	274	if (list_empty(&qdev->gem.objects))
	275	return;
	276	dev_err(qdev->dev, "Userspace still has active objects !\n");
	277	list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) {
	278	mutex_lock(&qdev->ddev->struct_mutex);
	279	dev_err(qdev->dev, "%p %p %lu %lu force free\n",
	280	&bo->gem_base, bo, (unsigned long)bo->gem_base.size,
	281	((unsigned long )&bo->gem_base.refcount));
	282	mutex_lock(&qdev->gem.mutex);
	283	list_del_init(&bo->list);
	284	mutex_unlock(&qdev->gem.mutex);
	285	/* this should unref the ttm bo */
	286	drm_gem_object_unreference(&bo->gem_base);
	287	mutex_unlock(&qdev->ddev->struct_mutex);
	288	}
	289	}
	290
	291	int qxl_bo_init(struct qxl_device *qdev)
	292	{
	293	return qxl_ttm_init(qdev);
	294	}
	295
	296	void qxl_bo_fini(struct qxl_device *qdev)
	297	{
	298	qxl_ttm_fini(qdev);
	299	}
	300
	301	int qxl_bo_check_id(struct qxl_device qdev, struct qxl_bo bo)
	302	{
	303	int ret;
	304	if (bo->type == QXL_GEM_DOMAIN_SURFACE && bo->surface_id == 0) {
	305	/* allocate a surface id for this surface now */
	306	ret = qxl_surface_id_alloc(qdev, bo);
	307	if (ret)
	308	return ret;
	309
	310	ret = qxl_hw_surface_alloc(qdev, bo, NULL);
	311	if (ret)
	312	return ret;
	313	}
	314	return 0;
	315	}
	316
b86487a6 DA	317	int qxl_surf_evict(struct qxl_device *qdev)
	318	{
	319	return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV0);
	320	}
d84300bf DA	321
	322	int qxl_vram_evict(struct qxl_device *qdev)
	323	{
	324	return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_VRAM);
	325	}