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diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h
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1/*
2 * Virtio GPU Device
3 *
4 * Copyright Red Hat, Inc. 2013-2014
5 *
6 * Authors:
7 * Dave Airlie <airlied@redhat.com>
8 * Gerd Hoffmann <kraxel@redhat.com>
9 *
10 * This header is BSD licensed so anyone can use the definitions
11 * to implement compatible drivers/servers:
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of IBM nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
27 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR
28 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
31 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
32 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
34 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38#ifndef VIRTIO_GPU_HW_H
39#define VIRTIO_GPU_HW_H
40
41enum virtio_gpu_ctrl_type {
42 VIRTIO_GPU_UNDEFINED = 0,
43
44 /* 2d commands */
45 VIRTIO_GPU_CMD_GET_DISPLAY_INFO = 0x0100,
46 VIRTIO_GPU_CMD_RESOURCE_CREATE_2D,
47 VIRTIO_GPU_CMD_RESOURCE_UNREF,
48 VIRTIO_GPU_CMD_SET_SCANOUT,
49 VIRTIO_GPU_CMD_RESOURCE_FLUSH,
50 VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D,
51 VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING,
52 VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING,
53
54 /* cursor commands */
55 VIRTIO_GPU_CMD_UPDATE_CURSOR = 0x0300,
56 VIRTIO_GPU_CMD_MOVE_CURSOR,
57
58 /* success responses */
59 VIRTIO_GPU_RESP_OK_NODATA = 0x1100,
60 VIRTIO_GPU_RESP_OK_DISPLAY_INFO,
61
62 /* error responses */
63 VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200,
64 VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY,
65 VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID,
66 VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID,
67 VIRTIO_GPU_RESP_ERR_INVALID_CONTEXT_ID,
68 VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER,
69};
70
71#define VIRTIO_GPU_FLAG_FENCE (1 << 0)
72
73struct virtio_gpu_ctrl_hdr {
74 __le32 type;
75 __le32 flags;
76 __le64 fence_id;
77 __le32 ctx_id;
78 __le32 padding;
79};
80
81/* data passed in the cursor vq */
82
83struct virtio_gpu_cursor_pos {
84 __le32 scanout_id;
85 __le32 x;
86 __le32 y;
87 __le32 padding;
88};
89
90/* VIRTIO_GPU_CMD_UPDATE_CURSOR, VIRTIO_GPU_CMD_MOVE_CURSOR */
91struct virtio_gpu_update_cursor {
92 struct virtio_gpu_ctrl_hdr hdr;
93 struct virtio_gpu_cursor_pos pos; /* update & move */
94 __le32 resource_id; /* update only */
95 __le32 hot_x; /* update only */
96 __le32 hot_y; /* update only */
97 __le32 padding;
98};
99
100/* data passed in the control vq, 2d related */
101
102struct virtio_gpu_rect {
103 __le32 x;
104 __le32 y;
105 __le32 width;
106 __le32 height;
107};
108
109/* VIRTIO_GPU_CMD_RESOURCE_UNREF */
110struct virtio_gpu_resource_unref {
111 struct virtio_gpu_ctrl_hdr hdr;
112 __le32 resource_id;
113 __le32 padding;
114};
115
116/* VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: create a 2d resource with a format */
117struct virtio_gpu_resource_create_2d {
118 struct virtio_gpu_ctrl_hdr hdr;
119 __le32 resource_id;
120 __le32 format;
121 __le32 width;
122 __le32 height;
123};
124
125/* VIRTIO_GPU_CMD_SET_SCANOUT */
126struct virtio_gpu_set_scanout {
127 struct virtio_gpu_ctrl_hdr hdr;
128 struct virtio_gpu_rect r;
129 __le32 scanout_id;
130 __le32 resource_id;
131};
132
133/* VIRTIO_GPU_CMD_RESOURCE_FLUSH */
134struct virtio_gpu_resource_flush {
135 struct virtio_gpu_ctrl_hdr hdr;
136 struct virtio_gpu_rect r;
137 __le32 resource_id;
138 __le32 padding;
139};
140
141/* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: simple transfer to_host */
142struct virtio_gpu_transfer_to_host_2d {
143 struct virtio_gpu_ctrl_hdr hdr;
144 struct virtio_gpu_rect r;
145 __le64 offset;
146 __le32 resource_id;
147 __le32 padding;
148};
149
150struct virtio_gpu_mem_entry {
151 __le64 addr;
152 __le32 length;
153 __le32 padding;
154};
155
156/* VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING */
157struct virtio_gpu_resource_attach_backing {
158 struct virtio_gpu_ctrl_hdr hdr;
159 __le32 resource_id;
160 __le32 nr_entries;
161};
162
163/* VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING */
164struct virtio_gpu_resource_detach_backing {
165 struct virtio_gpu_ctrl_hdr hdr;
166 __le32 resource_id;
167 __le32 padding;
168};
169
170/* VIRTIO_GPU_RESP_OK_DISPLAY_INFO */
171#define VIRTIO_GPU_MAX_SCANOUTS 16
172struct virtio_gpu_resp_display_info {
173 struct virtio_gpu_ctrl_hdr hdr;
174 struct virtio_gpu_display_one {
175 struct virtio_gpu_rect r;
176 __le32 enabled;
177 __le32 flags;
178 } pmodes[VIRTIO_GPU_MAX_SCANOUTS];
179};
180
181#define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
182
183struct virtio_gpu_config {
184 __u32 events_read;
185 __u32 events_clear;
186 __u32 num_scanouts;
187 __u32 reserved;
188};
189
190/* simple formats for fbcon/X use */
191enum virtio_gpu_formats {
192 VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM = 1,
193 VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM = 2,
194 VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM = 3,
195 VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM = 4,
196
197 VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM = 67,
198 VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM = 68,
199
200 VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM = 121,
201 VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134,
202};
203
204#endif
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