2 * Copyright (C) 2015 Red Hat, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 #include "virtgpu_drv.h"
29 void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj)
31 struct virtio_gpu_object *obj = gem_to_virtio_gpu_obj(gem_obj);
34 virtio_gpu_object_unref(&obj);
37 struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
38 size_t size, bool kernel,
41 struct virtio_gpu_device *vgdev = dev->dev_private;
42 struct virtio_gpu_object *obj;
45 ret = virtio_gpu_object_create(vgdev, size, kernel, pinned, &obj);
52 int virtio_gpu_gem_create(struct drm_file *file,
53 struct drm_device *dev,
55 struct drm_gem_object **obj_p,
58 struct virtio_gpu_object *obj;
62 obj = virtio_gpu_alloc_object(dev, size, false, false);
66 ret = drm_gem_handle_create(file, &obj->gem_base, &handle);
68 drm_gem_object_release(&obj->gem_base);
72 *obj_p = &obj->gem_base;
74 /* drop reference from allocate - handle holds it now */
75 drm_gem_object_put_unlocked(&obj->gem_base);
81 int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
82 struct drm_device *dev,
83 struct drm_mode_create_dumb *args)
85 struct virtio_gpu_device *vgdev = dev->dev_private;
86 struct drm_gem_object *gobj;
87 struct virtio_gpu_object *obj;
93 pitch = args->width * ((args->bpp + 1) / 8);
94 args->size = pitch * args->height;
95 args->size = ALIGN(args->size, PAGE_SIZE);
97 ret = virtio_gpu_gem_create(file_priv, dev, args->size, &gobj,
102 format = virtio_gpu_translate_format(DRM_FORMAT_XRGB8888);
103 virtio_gpu_resource_id_get(vgdev, &resid);
104 virtio_gpu_cmd_create_resource(vgdev, resid, format,
105 args->width, args->height);
107 /* attach the object to the resource */
108 obj = gem_to_virtio_gpu_obj(gobj);
109 ret = virtio_gpu_object_attach(vgdev, obj, resid, NULL);
121 int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
122 struct drm_device *dev,
123 uint32_t handle, uint64_t *offset_p)
125 struct drm_gem_object *gobj;
126 struct virtio_gpu_object *obj;
128 gobj = drm_gem_object_lookup(file_priv, handle);
131 obj = gem_to_virtio_gpu_obj(gobj);
132 *offset_p = virtio_gpu_object_mmap_offset(obj);
133 drm_gem_object_put_unlocked(gobj);
137 int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
138 struct drm_file *file)
140 struct virtio_gpu_device *vgdev = obj->dev->dev_private;
141 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
142 struct virtio_gpu_object *qobj = gem_to_virtio_gpu_obj(obj);
145 if (!vgdev->has_virgl_3d)
148 r = virtio_gpu_object_reserve(qobj, false);
152 virtio_gpu_cmd_context_attach_resource(vgdev, vfpriv->ctx_id,
153 qobj->hw_res_handle);
154 virtio_gpu_object_unreserve(qobj);
158 void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
159 struct drm_file *file)
161 struct virtio_gpu_device *vgdev = obj->dev->dev_private;
162 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
163 struct virtio_gpu_object *qobj = gem_to_virtio_gpu_obj(obj);
166 if (!vgdev->has_virgl_3d)
169 r = virtio_gpu_object_reserve(qobj, false);
173 virtio_gpu_cmd_context_detach_resource(vgdev, vfpriv->ctx_id,
174 qobj->hw_res_handle);
175 virtio_gpu_object_unreserve(qobj);