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