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 #include <drm/drm_print.h>
28
29 #include "qxl_drv.h"
30 #include "qxl_object.h"
31
qxl_gem_object_free(struct drm_gem_object * gobj)32 void qxl_gem_object_free(struct drm_gem_object *gobj)
33 {
34 struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
35 struct qxl_device *qdev;
36 struct ttm_buffer_object *tbo;
37
38 qdev = to_qxl(gobj->dev);
39
40 qxl_surface_evict(qdev, qobj, false);
41
42 tbo = &qobj->tbo;
43 ttm_bo_fini(tbo);
44 }
45
qxl_gem_object_create(struct qxl_device * qdev,int size,int alignment,int initial_domain,bool discardable,bool kernel,struct qxl_surface * surf,struct drm_gem_object ** obj)46 int qxl_gem_object_create(struct qxl_device *qdev, int size,
47 int alignment, int initial_domain,
48 bool discardable, bool kernel,
49 struct qxl_surface *surf,
50 struct drm_gem_object **obj)
51 {
52 struct qxl_bo *qbo;
53 int r;
54
55 *obj = NULL;
56 /* At least align on page size */
57 if (alignment < PAGE_SIZE)
58 alignment = PAGE_SIZE;
59 r = qxl_bo_create(qdev, size, kernel, false, initial_domain, 0, surf, &qbo);
60 if (r) {
61 if (r != -ERESTARTSYS)
62 DRM_ERROR(
63 "Failed to allocate GEM object (%d, %d, %u, %d)\n",
64 size, initial_domain, alignment, r);
65 return r;
66 }
67 *obj = &qbo->tbo.base;
68
69 mutex_lock(&qdev->gem.mutex);
70 list_add_tail(&qbo->list, &qdev->gem.objects);
71 mutex_unlock(&qdev->gem.mutex);
72
73 return 0;
74 }
75
76 /*
77 * If the caller passed a valid gobj pointer, it is responsible to call
78 * drm_gem_object_put() when it no longer needs to acess the object.
79 *
80 * If gobj is NULL, it is handled internally.
81 */
qxl_gem_object_create_with_handle(struct qxl_device * qdev,struct drm_file * file_priv,u32 domain,size_t size,struct qxl_surface * surf,struct drm_gem_object ** gobj,uint32_t * handle)82 int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
83 struct drm_file *file_priv,
84 u32 domain,
85 size_t size,
86 struct qxl_surface *surf,
87 struct drm_gem_object **gobj,
88 uint32_t *handle)
89 {
90 int r;
91 struct drm_gem_object *local_gobj;
92
93 BUG_ON(!handle);
94
95 r = qxl_gem_object_create(qdev, size, 0,
96 domain,
97 false, false, surf,
98 &local_gobj);
99 if (r)
100 return -ENOMEM;
101 r = drm_gem_handle_create(file_priv, local_gobj, handle);
102 if (r)
103 return r;
104
105 if (gobj)
106 *gobj = local_gobj;
107 else
108 /* drop reference from allocate - handle holds it now */
109 drm_gem_object_put(local_gobj);
110
111 return 0;
112 }
113
qxl_gem_object_open(struct drm_gem_object * obj,struct drm_file * file_priv)114 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
115 {
116 return 0;
117 }
118
qxl_gem_object_close(struct drm_gem_object * obj,struct drm_file * file_priv)119 void qxl_gem_object_close(struct drm_gem_object *obj,
120 struct drm_file *file_priv)
121 {
122 }
123
qxl_gem_init(struct qxl_device * qdev)124 void qxl_gem_init(struct qxl_device *qdev)
125 {
126 INIT_LIST_HEAD(&qdev->gem.objects);
127 }
128
qxl_gem_fini(struct qxl_device * qdev)129 void qxl_gem_fini(struct qxl_device *qdev)
130 {
131 qxl_bo_force_delete(qdev);
132 }
133