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 
qxl_gem_object_free(struct drm_gem_object * gobj)31 void 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 
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)45 int 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 
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)75 int qxl_gem_object_create_with_handle(struct qxl_device *qdev,
76 				      struct drm_file *file_priv,
77 				      u32 domain,
78 				      size_t size,
79 				      struct qxl_surface *surf,
80 				      struct qxl_bo **qobj,
81 				      uint32_t *handle)
82 {
83 	struct drm_gem_object *gobj;
84 	int r;
85 
86 	BUG_ON(!qobj);
87 	BUG_ON(!handle);
88 
89 	r = qxl_gem_object_create(qdev, size, 0,
90 				  domain,
91 				  false, false, surf,
92 				  &gobj);
93 	if (r)
94 		return -ENOMEM;
95 	r = drm_gem_handle_create(file_priv, gobj, handle);
96 	if (r)
97 		return r;
98 	/* drop reference from allocate - handle holds it now */
99 	*qobj = gem_to_qxl_bo(gobj);
100 	drm_gem_object_put(gobj);
101 	return 0;
102 }
103 
qxl_gem_object_open(struct drm_gem_object * obj,struct drm_file * file_priv)104 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
105 {
106 	return 0;
107 }
108 
qxl_gem_object_close(struct drm_gem_object * obj,struct drm_file * file_priv)109 void qxl_gem_object_close(struct drm_gem_object *obj,
110 			  struct drm_file *file_priv)
111 {
112 }
113 
qxl_gem_init(struct qxl_device * qdev)114 void qxl_gem_init(struct qxl_device *qdev)
115 {
116 	INIT_LIST_HEAD(&qdev->gem.objects);
117 }
118 
qxl_gem_fini(struct qxl_device * qdev)119 void qxl_gem_fini(struct qxl_device *qdev)
120 {
121 	qxl_bo_force_delete(qdev);
122 }
123