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 <drm/drm.h>
27
28#include "qxl_drv.h"
29#include "qxl_object.h"
30
31void qxl_gem_object_free(struct drm_gem_object *gobj)
32{
33	struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
34	struct qxl_device *qdev;
35	struct ttm_buffer_object *tbo;
36
37	qdev = to_qxl(gobj->dev);
38
39	qxl_surface_evict(qdev, qobj, false);
40
41	tbo = &qobj->tbo;
42	ttm_bo_put(tbo);
43}
44
45int qxl_gem_object_create(struct qxl_device *qdev, int size,
46			  int alignment, int initial_domain,
47			  bool discardable, bool kernel,
48			  struct qxl_surface *surf,
49			  struct drm_gem_object **obj)
50{
51	struct qxl_bo *qbo;
52	int r;
53
54	*obj = NULL;
55	/* At least align on page size */
56	if (alignment < PAGE_SIZE)
57		alignment = PAGE_SIZE;
58	r = qxl_bo_create(qdev, size, kernel, false, initial_domain, 0, surf, &qbo);
59	if (r) {
60		if (r != -ERESTARTSYS)
61			DRM_ERROR(
62			"Failed to allocate GEM object (%d, %d, %u, %d)\n",
63				  size, initial_domain, alignment, r);
64		return r;
65	}
66	*obj = &qbo->tbo.base;
67
68	mutex_lock(&qdev->gem.mutex);
69	list_add_tail(&qbo->list, &qdev->gem.objects);
70	mutex_unlock(&qdev->gem.mutex);
71
72	return 0;
73}
74
75/*
76 * If the caller passed a valid gobj pointer, it is responsible to call
77 * drm_gem_object_put() when it no longer needs to acess the object.
78 *
79 * If gobj is NULL, it is handled internally.
80 */
81int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
82				      struct drm_file *file_priv,
83				      u32 domain,
84				      size_t size,
85				      struct qxl_surface *surf,
86				      struct drm_gem_object **gobj,
87				      uint32_t *handle)
88{
89	int r;
90	struct drm_gem_object *local_gobj;
91
92	BUG_ON(!handle);
93
94	r = qxl_gem_object_create(qdev, size, 0,
95				  domain,
96				  false, false, surf,
97				  &local_gobj);
98	if (r)
99		return -ENOMEM;
100	r = drm_gem_handle_create(file_priv, local_gobj, handle);
101	if (r)
102		return r;
103
104	if (gobj)
105		*gobj = local_gobj;
106	else
107		/* drop reference from allocate - handle holds it now */
108		drm_gem_object_put(local_gobj);
109
110	return 0;
111}
112
113int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
114{
115	return 0;
116}
117
118void qxl_gem_object_close(struct drm_gem_object *obj,
119			  struct drm_file *file_priv)
120{
121}
122
123void qxl_gem_init(struct qxl_device *qdev)
124{
125	INIT_LIST_HEAD(&qdev->gem.objects);
126}
127
128void qxl_gem_fini(struct qxl_device *qdev)
129{
130	qxl_bo_force_delete(qdev);
131}
132