xref: /openbmc/linux/drivers/gpu/drm/i915/gvt/dmabuf.h (revision df947eb6)
1e546e281STina Zhang /*
2e546e281STina Zhang  * Copyright(c) 2017 Intel Corporation. All rights reserved.
3e546e281STina Zhang  *
4e546e281STina Zhang  * Permission is hereby granted, free of charge, to any person obtaining a
5e546e281STina Zhang  * copy of this software and associated documentation files (the "Software"),
6e546e281STina Zhang  * to deal in the Software without restriction, including without limitation
7e546e281STina Zhang  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8e546e281STina Zhang  * and/or sell copies of the Software, and to permit persons to whom the
9e546e281STina Zhang  * Software is furnished to do so, subject to the following conditions:
10e546e281STina Zhang  *
11e546e281STina Zhang  * The above copyright notice and this permission notice (including the next
12e546e281STina Zhang  * paragraph) shall be included in all copies or substantial portions of the
13e546e281STina Zhang  * Software.
14e546e281STina Zhang  *
15e546e281STina Zhang  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16e546e281STina Zhang  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17e546e281STina Zhang  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18e546e281STina Zhang  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19e546e281STina Zhang  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20e546e281STina Zhang  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21e546e281STina Zhang  * SOFTWARE.
22e546e281STina Zhang  *
23e546e281STina Zhang  * Authors:
24e546e281STina Zhang  *    Zhiyuan Lv <zhiyuan.lv@intel.com>
25e546e281STina Zhang  *
26e546e281STina Zhang  * Contributors:
27e546e281STina Zhang  *    Xiaoguang Chen
28e546e281STina Zhang  *    Tina Zhang <tina.zhang@intel.com>
29e546e281STina Zhang  */
30e546e281STina Zhang 
31e546e281STina Zhang #ifndef _GVT_DMABUF_H_
32e546e281STina Zhang #define _GVT_DMABUF_H_
33e546e281STina Zhang #include <linux/vfio.h>
34e546e281STina Zhang 
35e546e281STina Zhang struct intel_vgpu_fb_info {
36e546e281STina Zhang 	__u64 start;
37e546e281STina Zhang 	__u64 start_gpa;
38e546e281STina Zhang 	__u64 drm_format_mod;
39e546e281STina Zhang 	__u32 drm_format;	/* drm format of plane */
40e546e281STina Zhang 	__u32 width;	/* width of plane */
41e546e281STina Zhang 	__u32 height;	/* height of plane */
42e546e281STina Zhang 	__u32 stride;	/* stride of plane */
43e546e281STina Zhang 	__u32 size;	/* size of plane in bytes, align on page */
44e546e281STina Zhang 	__u32 x_pos;	/* horizontal position of cursor plane */
45e546e281STina Zhang 	__u32 y_pos;	/* vertical position of cursor plane */
46e546e281STina Zhang 	__u32 x_hot;    /* horizontal position of cursor hotspot */
47e546e281STina Zhang 	__u32 y_hot;    /* vertical position of cursor hotspot */
48e546e281STina Zhang 	struct intel_vgpu_dmabuf_obj *obj;
49e546e281STina Zhang };
50e546e281STina Zhang 
51*df947eb6SMauro Carvalho Chehab /*
52e546e281STina Zhang  * struct intel_vgpu_dmabuf_obj- Intel vGPU device buffer object
53e546e281STina Zhang  */
54e546e281STina Zhang struct intel_vgpu_dmabuf_obj {
55e546e281STina Zhang 	struct intel_vgpu *vgpu;
56e546e281STina Zhang 	struct intel_vgpu_fb_info *info;
57e546e281STina Zhang 	__u32 dmabuf_id;
58e546e281STina Zhang 	struct kref kref;
59e546e281STina Zhang 	bool initref;
60e546e281STina Zhang 	struct list_head list;
61e546e281STina Zhang };
62e546e281STina Zhang 
63e546e281STina Zhang int intel_vgpu_query_plane(struct intel_vgpu *vgpu, void *args);
64e546e281STina Zhang int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id);
65e546e281STina Zhang void intel_vgpu_dmabuf_cleanup(struct intel_vgpu *vgpu);
66e546e281STina Zhang 
67e546e281STina Zhang #endif
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