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 
35 struct 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  */
54 struct 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 
63 int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
64 int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
65 void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
66 
67 #endif
68