1/*
2 * Copyright(c) 2017 Intel Corporation. All rights reserved.
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 (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 * Zhiyuan Lv <zhiyuan.lv@intel.com>
25 *
26 * Contributors:
27 * Xiaoguang Chen
28 * Tina Zhang <tina.zhang@intel.com>
29 */
30
31#ifndef _GVT_DMABUF_H_
32#define _GVT_DMABUF_H_
33#include <linux/vfio.h>
34
35struct intel_vgpu_fb_info {
36 __u64 start;
37 __u64 start_gpa;
38 __u64 drm_format_mod;
39 __u32 drm_format; /* drm format of plane */
40 __u32 width; /* width of plane */
41 __u32 height; /* height of plane */
42 __u32 stride; /* stride of plane */
43 __u32 size; /* size of plane in bytes, align on page */
44 __u32 x_pos; /* horizontal position of cursor plane */
45 __u32 y_pos; /* vertical position of cursor plane */
46 __u32 x_hot; /* horizontal position of cursor hotspot */
47 __u32 y_hot; /* vertical position of cursor hotspot */
48 struct intel_vgpu_dmabuf_obj *obj;
49};
50
51/*
52 * struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
53 */
54struct intel_vgpu_dmabuf_obj {
55 struct intel_vgpu *vgpu;
56 struct intel_vgpu_fb_info *info;
57 __u32 dmabuf_id;
58 struct kref kref;
59 bool initref;
60 struct list_head list;
61};
62
63int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
64int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
65void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
66
67#endif
68

source code of linux/drivers/gpu/drm/i915/gvt/dmabuf.h