4 * Copyright Red Hat, Inc. 2013-2014
7 * Dave Airlie <airlied@redhat.com>
8 * Gerd Hoffmann <kraxel@redhat.com>
10 * This header is BSD licensed so anyone can use the definitions
11 * to implement compatible drivers/servers:
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
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
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38 #ifndef VIRTIO_GPU_HW_H
39 #define VIRTIO_GPU_HW_H
41 #include <linux/types.h>
44 * VIRTIO_GPU_CMD_CTX_*
47 #define VIRTIO_GPU_F_VIRGL 0
50 * VIRTIO_GPU_CMD_GET_EDID
52 #define VIRTIO_GPU_F_EDID 1
54 * VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID
56 #define VIRTIO_GPU_F_RESOURCE_UUID 2
59 * VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB
61 #define VIRTIO_GPU_F_RESOURCE_BLOB 3
63 * VIRTIO_GPU_CMD_CREATE_CONTEXT with
64 * context_init and multiple timelines
66 #define VIRTIO_GPU_F_CONTEXT_INIT 4
68 enum virtio_gpu_ctrl_type {
69 VIRTIO_GPU_UNDEFINED = 0,
72 VIRTIO_GPU_CMD_GET_DISPLAY_INFO = 0x0100,
73 VIRTIO_GPU_CMD_RESOURCE_CREATE_2D,
74 VIRTIO_GPU_CMD_RESOURCE_UNREF,
75 VIRTIO_GPU_CMD_SET_SCANOUT,
76 VIRTIO_GPU_CMD_RESOURCE_FLUSH,
77 VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D,
78 VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING,
79 VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING,
80 VIRTIO_GPU_CMD_GET_CAPSET_INFO,
81 VIRTIO_GPU_CMD_GET_CAPSET,
82 VIRTIO_GPU_CMD_GET_EDID,
83 VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID,
84 VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB,
85 VIRTIO_GPU_CMD_SET_SCANOUT_BLOB,
88 VIRTIO_GPU_CMD_CTX_CREATE = 0x0200,
89 VIRTIO_GPU_CMD_CTX_DESTROY,
90 VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE,
91 VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE,
92 VIRTIO_GPU_CMD_RESOURCE_CREATE_3D,
93 VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D,
94 VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D,
95 VIRTIO_GPU_CMD_SUBMIT_3D,
96 VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB,
97 VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB,
100 VIRTIO_GPU_CMD_UPDATE_CURSOR = 0x0300,
101 VIRTIO_GPU_CMD_MOVE_CURSOR,
103 /* success responses */
104 VIRTIO_GPU_RESP_OK_NODATA = 0x1100,
105 VIRTIO_GPU_RESP_OK_DISPLAY_INFO,
106 VIRTIO_GPU_RESP_OK_CAPSET_INFO,
107 VIRTIO_GPU_RESP_OK_CAPSET,
108 VIRTIO_GPU_RESP_OK_EDID,
109 VIRTIO_GPU_RESP_OK_RESOURCE_UUID,
110 VIRTIO_GPU_RESP_OK_MAP_INFO,
112 /* error responses */
113 VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200,
114 VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY,
115 VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID,
116 VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID,
117 VIRTIO_GPU_RESP_ERR_INVALID_CONTEXT_ID,
118 VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER,
121 enum virtio_gpu_shm_id {
122 VIRTIO_GPU_SHM_ID_UNDEFINED = 0,
124 * VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB
125 * VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB
127 VIRTIO_GPU_SHM_ID_HOST_VISIBLE = 1
130 #define VIRTIO_GPU_FLAG_FENCE (1 << 0)
132 * If the following flag is set, then ring_idx contains the index
133 * of the command ring that needs to used when creating the fence
135 #define VIRTIO_GPU_FLAG_INFO_RING_IDX (1 << 1)
137 struct virtio_gpu_ctrl_hdr {
146 /* data passed in the cursor vq */
148 struct virtio_gpu_cursor_pos {
155 /* VIRTIO_GPU_CMD_UPDATE_CURSOR, VIRTIO_GPU_CMD_MOVE_CURSOR */
156 struct virtio_gpu_update_cursor {
157 struct virtio_gpu_ctrl_hdr hdr;
158 struct virtio_gpu_cursor_pos pos; /* update & move */
159 __le32 resource_id; /* update only */
160 __le32 hot_x; /* update only */
161 __le32 hot_y; /* update only */
165 /* data passed in the control vq, 2d related */
167 struct virtio_gpu_rect {
174 /* VIRTIO_GPU_CMD_RESOURCE_UNREF */
175 struct virtio_gpu_resource_unref {
176 struct virtio_gpu_ctrl_hdr hdr;
181 /* VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: create a 2d resource with a format */
182 struct virtio_gpu_resource_create_2d {
183 struct virtio_gpu_ctrl_hdr hdr;
190 /* VIRTIO_GPU_CMD_SET_SCANOUT */
191 struct virtio_gpu_set_scanout {
192 struct virtio_gpu_ctrl_hdr hdr;
193 struct virtio_gpu_rect r;
198 /* VIRTIO_GPU_CMD_RESOURCE_FLUSH */
199 struct virtio_gpu_resource_flush {
200 struct virtio_gpu_ctrl_hdr hdr;
201 struct virtio_gpu_rect r;
206 /* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: simple transfer to_host */
207 struct virtio_gpu_transfer_to_host_2d {
208 struct virtio_gpu_ctrl_hdr hdr;
209 struct virtio_gpu_rect r;
215 struct virtio_gpu_mem_entry {
221 /* VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING */
222 struct virtio_gpu_resource_attach_backing {
223 struct virtio_gpu_ctrl_hdr hdr;
228 /* VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING */
229 struct virtio_gpu_resource_detach_backing {
230 struct virtio_gpu_ctrl_hdr hdr;
235 /* VIRTIO_GPU_RESP_OK_DISPLAY_INFO */
236 #define VIRTIO_GPU_MAX_SCANOUTS 16
237 struct virtio_gpu_resp_display_info {
238 struct virtio_gpu_ctrl_hdr hdr;
239 struct virtio_gpu_display_one {
240 struct virtio_gpu_rect r;
243 } pmodes[VIRTIO_GPU_MAX_SCANOUTS];
246 /* data passed in the control vq, 3d related */
248 struct virtio_gpu_box {
253 /* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D, VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D */
254 struct virtio_gpu_transfer_host_3d {
255 struct virtio_gpu_ctrl_hdr hdr;
256 struct virtio_gpu_box box;
264 /* VIRTIO_GPU_CMD_RESOURCE_CREATE_3D */
265 #define VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP (1 << 0)
266 struct virtio_gpu_resource_create_3d {
267 struct virtio_gpu_ctrl_hdr hdr;
282 /* VIRTIO_GPU_CMD_CTX_CREATE */
283 #define VIRTIO_GPU_CONTEXT_INIT_CAPSET_ID_MASK 0x000000ff
284 struct virtio_gpu_ctx_create {
285 struct virtio_gpu_ctrl_hdr hdr;
291 /* VIRTIO_GPU_CMD_CTX_DESTROY */
292 struct virtio_gpu_ctx_destroy {
293 struct virtio_gpu_ctrl_hdr hdr;
296 /* VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE, VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE */
297 struct virtio_gpu_ctx_resource {
298 struct virtio_gpu_ctrl_hdr hdr;
303 /* VIRTIO_GPU_CMD_SUBMIT_3D */
304 struct virtio_gpu_cmd_submit {
305 struct virtio_gpu_ctrl_hdr hdr;
310 #define VIRTIO_GPU_CAPSET_VIRGL 1
311 #define VIRTIO_GPU_CAPSET_VIRGL2 2
312 /* 3 is reserved for gfxstream */
313 #define VIRTIO_GPU_CAPSET_VENUS 4
315 /* VIRTIO_GPU_CMD_GET_CAPSET_INFO */
316 struct virtio_gpu_get_capset_info {
317 struct virtio_gpu_ctrl_hdr hdr;
322 /* VIRTIO_GPU_RESP_OK_CAPSET_INFO */
323 struct virtio_gpu_resp_capset_info {
324 struct virtio_gpu_ctrl_hdr hdr;
326 __le32 capset_max_version;
327 __le32 capset_max_size;
331 /* VIRTIO_GPU_CMD_GET_CAPSET */
332 struct virtio_gpu_get_capset {
333 struct virtio_gpu_ctrl_hdr hdr;
335 __le32 capset_version;
338 /* VIRTIO_GPU_RESP_OK_CAPSET */
339 struct virtio_gpu_resp_capset {
340 struct virtio_gpu_ctrl_hdr hdr;
344 /* VIRTIO_GPU_CMD_GET_EDID */
345 struct virtio_gpu_cmd_get_edid {
346 struct virtio_gpu_ctrl_hdr hdr;
351 /* VIRTIO_GPU_RESP_OK_EDID */
352 struct virtio_gpu_resp_edid {
353 struct virtio_gpu_ctrl_hdr hdr;
359 #define VIRTIO_GPU_EVENT_DISPLAY (1 << 0)
361 struct virtio_gpu_config {
368 /* simple formats for fbcon/X use */
369 enum virtio_gpu_formats {
370 VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM = 1,
371 VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM = 2,
372 VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM = 3,
373 VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM = 4,
375 VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM = 67,
376 VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM = 68,
378 VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM = 121,
379 VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134,
382 /* VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID */
383 struct virtio_gpu_resource_assign_uuid {
384 struct virtio_gpu_ctrl_hdr hdr;
389 /* VIRTIO_GPU_RESP_OK_RESOURCE_UUID */
390 struct virtio_gpu_resp_resource_uuid {
391 struct virtio_gpu_ctrl_hdr hdr;
395 /* VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB */
396 struct virtio_gpu_resource_create_blob {
397 struct virtio_gpu_ctrl_hdr hdr;
399 #define VIRTIO_GPU_BLOB_MEM_GUEST 0x0001
400 #define VIRTIO_GPU_BLOB_MEM_HOST3D 0x0002
401 #define VIRTIO_GPU_BLOB_MEM_HOST3D_GUEST 0x0003
403 #define VIRTIO_GPU_BLOB_FLAG_USE_MAPPABLE 0x0001
404 #define VIRTIO_GPU_BLOB_FLAG_USE_SHAREABLE 0x0002
405 #define VIRTIO_GPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004
406 /* zero is invalid blob mem */
413 * sizeof(nr_entries * virtio_gpu_mem_entry) bytes follow
417 /* VIRTIO_GPU_CMD_SET_SCANOUT_BLOB */
418 struct virtio_gpu_set_scanout_blob {
419 struct virtio_gpu_ctrl_hdr hdr;
420 struct virtio_gpu_rect r;
431 /* VIRTIO_GPU_CMD_RESOURCE_MAP_BLOB */
432 struct virtio_gpu_resource_map_blob {
433 struct virtio_gpu_ctrl_hdr hdr;
439 /* VIRTIO_GPU_RESP_OK_MAP_INFO */
440 #define VIRTIO_GPU_MAP_CACHE_MASK 0x0f
441 #define VIRTIO_GPU_MAP_CACHE_NONE 0x00
442 #define VIRTIO_GPU_MAP_CACHE_CACHED 0x01
443 #define VIRTIO_GPU_MAP_CACHE_UNCACHED 0x02
444 #define VIRTIO_GPU_MAP_CACHE_WC 0x03
445 struct virtio_gpu_resp_map_info {
446 struct virtio_gpu_ctrl_hdr hdr;
451 /* VIRTIO_GPU_CMD_RESOURCE_UNMAP_BLOB */
452 struct virtio_gpu_resource_unmap_blob {
453 struct virtio_gpu_ctrl_hdr hdr;