1/*	$NetBSD: dmabuf.h,v 1.2 2021/12/18 23:45:31 riastradh Exp $	*/
2
3/*
4 * Copyright(c) 2017 Intel Corporation. All rights reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 * SOFTWARE.
24 *
25 * Authors:
26 *    Zhiyuan Lv <zhiyuan.lv@intel.com>
27 *
28 * Contributors:
29 *    Xiaoguang Chen
30 *    Tina Zhang <tina.zhang@intel.com>
31 */
32
33#ifndef _GVT_DMABUF_H_
34#define _GVT_DMABUF_H_
35#include <linux/vfio.h>
36
37struct intel_vgpu_fb_info {
38	__u64 start;
39	__u64 start_gpa;
40	__u64 drm_format_mod;
41	__u32 drm_format;	/* drm format of plane */
42	__u32 width;	/* width of plane */
43	__u32 height;	/* height of plane */
44	__u32 stride;	/* stride of plane */
45	__u32 size;	/* size of plane in bytes, align on page */
46	__u32 x_pos;	/* horizontal position of cursor plane */
47	__u32 y_pos;	/* vertical position of cursor plane */
48	__u32 x_hot;    /* horizontal position of cursor hotspot */
49	__u32 y_hot;    /* vertical position of cursor hotspot */
50	struct intel_vgpu_dmabuf_obj *obj;
51};
52
53/**
54 * struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
55 */
56struct intel_vgpu_dmabuf_obj {
57	struct intel_vgpu *vgpu;
58	struct intel_vgpu_fb_info *info;
59	__u32 dmabuf_id;
60	struct kref kref;
61	bool initref;
62	struct list_head list;
63};
64
65int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
66int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
67void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
68
69#endif
70