1 /*
2 * Copyright © 2012 Intel Corporation
3 * Copyright © 2014 The Chromium OS Authors
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 *
24 * Authors:
25 * Ben Widawsky <ben@bwidawsk.net>
26 *
27 */
28
29 #ifndef _VGEM_DRV_H_
30 #define _VGEM_DRV_H_
31
32 #include <drm/drm_gem.h>
33 #include <drm/drm_cache.h>
34
35 #include <uapi/drm/vgem_drm.h>
36
37 struct vgem_file {
38 struct idr fence_idr;
39 struct mutex fence_mutex;
40 };
41
42 #define to_vgem_bo(x) container_of(x, struct drm_vgem_gem_object, base)
43 struct drm_vgem_gem_object {
44 struct drm_gem_object base;
45
46 struct page **pages;
47 unsigned int pages_pin_count;
48 struct mutex pages_lock;
49
50 struct sg_table *table;
51 };
52
53 int vgem_fence_open(struct vgem_file *file);
54 int vgem_fence_attach_ioctl(struct drm_device *dev,
55 void *data,
56 struct drm_file *file);
57 int vgem_fence_signal_ioctl(struct drm_device *dev,
58 void *data,
59 struct drm_file *file);
60 void vgem_fence_close(struct vgem_file *file);
61
62 #endif