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*
38 virtio_gpu_alloc_object(struct drm_device *dev,
39 struct virtio_gpu_object_params *params,
40 struct virtio_gpu_fence *fence)
42 struct virtio_gpu_device *vgdev = dev->dev_private;
43 struct virtio_gpu_object *obj;
46 ret = virtio_gpu_object_create(vgdev, params, &obj, fence);
53 int virtio_gpu_gem_create(struct drm_file *file,
54 struct drm_device *dev,
55 struct virtio_gpu_object_params *params,
56 struct drm_gem_object **obj_p,
59 struct virtio_gpu_object *obj;
63 obj = virtio_gpu_alloc_object(dev, params, NULL);
67 ret = drm_gem_handle_create(file, &obj->gem_base, &handle);
69 drm_gem_object_release(&obj->gem_base);
73 *obj_p = &obj->gem_base;
75 /* drop reference from allocate - handle holds it now */
76 drm_gem_object_put_unlocked(&obj->gem_base);
82 int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
83 struct drm_device *dev,
84 struct drm_mode_create_dumb *args)
86 struct drm_gem_object *gobj;
87 struct virtio_gpu_object_params params = { 0 };
94 pitch = args->width * 4;
95 args->size = pitch * args->height;
96 args->size = ALIGN(args->size, PAGE_SIZE);
98 params.format = virtio_gpu_translate_format(DRM_FORMAT_HOST_XRGB8888);
99 params.width = args->width;
100 params.height = args->height;
101 params.size = args->size;
103 ret = virtio_gpu_gem_create(file_priv, dev, ¶ms, &gobj,
115 int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
116 struct drm_device *dev,
117 uint32_t handle, uint64_t *offset_p)
119 struct drm_gem_object *gobj;
120 struct virtio_gpu_object *obj;
123 gobj = drm_gem_object_lookup(file_priv, handle);
126 obj = gem_to_virtio_gpu_obj(gobj);
127 *offset_p = virtio_gpu_object_mmap_offset(obj);
128 drm_gem_object_put_unlocked(gobj);
132 int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
133 struct drm_file *file)
135 struct virtio_gpu_device *vgdev = obj->dev->dev_private;
136 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
137 struct virtio_gpu_object *qobj = gem_to_virtio_gpu_obj(obj);
140 if (!vgdev->has_virgl_3d)
143 r = virtio_gpu_object_reserve(qobj, false);
147 virtio_gpu_cmd_context_attach_resource(vgdev, vfpriv->ctx_id,
148 qobj->hw_res_handle);
149 virtio_gpu_object_unreserve(qobj);
153 void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
154 struct drm_file *file)
156 struct virtio_gpu_device *vgdev = obj->dev->dev_private;
157 struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
158 struct virtio_gpu_object *qobj = gem_to_virtio_gpu_obj(obj);
161 if (!vgdev->has_virgl_3d)
164 r = virtio_gpu_object_reserve(qobj, false);
168 virtio_gpu_cmd_context_detach_resource(vgdev, vfpriv->ctx_id,
169 qobj->hw_res_handle);
170 virtio_gpu_object_unreserve(qobj);