1 /* $NetBSD: qxl_gem.c,v 1.3 2021/12/18 23:45:42 riastradh Exp $ */
2
3 /*
4 * Copyright 2013 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alon Levy
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: qxl_gem.c,v 1.3 2021/12/18 23:45:42 riastradh Exp $");
30
31 #include <drm/drm.h>
32
33 #include "qxl_drv.h"
34 #include "qxl_object.h"
35
qxl_gem_object_free(struct drm_gem_object * gobj)36 void qxl_gem_object_free(struct drm_gem_object *gobj)
37 {
38 struct qxl_bo *qobj = gem_to_qxl_bo(gobj);
39 struct qxl_device *qdev;
40 struct ttm_buffer_object *tbo;
41
42 qdev = (struct qxl_device *)gobj->dev->dev_private;
43
44 qxl_surface_evict(qdev, qobj, false);
45
46 tbo = &qobj->tbo;
47 ttm_bo_put(tbo);
48 }
49
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)50 int qxl_gem_object_create(struct qxl_device *qdev, int size,
51 int alignment, int initial_domain,
52 bool discardable, bool kernel,
53 struct qxl_surface *surf,
54 struct drm_gem_object **obj)
55 {
56 struct qxl_bo *qbo;
57 int r;
58
59 *obj = NULL;
60 /* At least align on page size */
61 if (alignment < PAGE_SIZE)
62 alignment = PAGE_SIZE;
63 r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo);
64 if (r) {
65 if (r != -ERESTARTSYS)
66 DRM_ERROR(
67 "Failed to allocate GEM object (%d, %d, %u, %d)\n",
68 size, initial_domain, alignment, r);
69 return r;
70 }
71 *obj = &qbo->tbo.base;
72
73 mutex_lock(&qdev->gem.mutex);
74 list_add_tail(&qbo->list, &qdev->gem.objects);
75 mutex_unlock(&qdev->gem.mutex);
76
77 return 0;
78 }
79
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 qxl_bo ** qobj,uint32_t * handle)80 int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
81 struct drm_file *file_priv,
82 u32 domain,
83 size_t size,
84 struct qxl_surface *surf,
85 struct qxl_bo **qobj,
86 uint32_t *handle)
87 {
88 struct drm_gem_object *gobj;
89 int r;
90
91 BUG_ON(!qobj);
92 BUG_ON(!handle);
93
94 r = qxl_gem_object_create(qdev, size, 0,
95 domain,
96 false, false, surf,
97 &gobj);
98 if (r)
99 return -ENOMEM;
100 r = drm_gem_handle_create(file_priv, gobj, handle);
101 if (r)
102 return r;
103 /* drop reference from allocate - handle holds it now */
104 *qobj = gem_to_qxl_bo(gobj);
105 drm_gem_object_put_unlocked(gobj);
106 return 0;
107 }
108
qxl_gem_object_open(struct drm_gem_object * obj,struct drm_file * file_priv)109 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
110 {
111 return 0;
112 }
113
qxl_gem_object_close(struct drm_gem_object * obj,struct drm_file * file_priv)114 void qxl_gem_object_close(struct drm_gem_object *obj,
115 struct drm_file *file_priv)
116 {
117 }
118
qxl_gem_init(struct qxl_device * qdev)119 void qxl_gem_init(struct qxl_device *qdev)
120 {
121 INIT_LIST_HEAD(&qdev->gem.objects);
122 }
123
qxl_gem_fini(struct qxl_device * qdev)124 void qxl_gem_fini(struct qxl_device *qdev)
125 {
126 qxl_bo_force_delete(qdev);
127 }
128