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 41 #include <linux/types.h> 42 43 #define VIRTIO_GPU_F_VIRGL 0 44 45 enum virtio_gpu_ctrl_type { 46 VIRTIO_GPU_UNDEFINED = 0, 47 48 /* 2d commands */ 49 VIRTIO_GPU_CMD_GET_DISPLAY_INFO = 0x0100, 50 VIRTIO_GPU_CMD_RESOURCE_CREATE_2D, 51 VIRTIO_GPU_CMD_RESOURCE_UNREF, 52 VIRTIO_GPU_CMD_SET_SCANOUT, 53 VIRTIO_GPU_CMD_RESOURCE_FLUSH, 54 VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D, 55 VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING, 56 VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING, 57 VIRTIO_GPU_CMD_GET_CAPSET_INFO, 58 VIRTIO_GPU_CMD_GET_CAPSET, 59 60 /* 3d commands */ 61 VIRTIO_GPU_CMD_CTX_CREATE = 0x0200, 62 VIRTIO_GPU_CMD_CTX_DESTROY, 63 VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE, 64 VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE, 65 VIRTIO_GPU_CMD_RESOURCE_CREATE_3D, 66 VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D, 67 VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D, 68 VIRTIO_GPU_CMD_SUBMIT_3D, 69 70 /* cursor commands */ 71 VIRTIO_GPU_CMD_UPDATE_CURSOR = 0x0300, 72 VIRTIO_GPU_CMD_MOVE_CURSOR, 73 74 /* success responses */ 75 VIRTIO_GPU_RESP_OK_NODATA = 0x1100, 76 VIRTIO_GPU_RESP_OK_DISPLAY_INFO, 77 VIRTIO_GPU_RESP_OK_CAPSET_INFO, 78 VIRTIO_GPU_RESP_OK_CAPSET, 79 80 /* error responses */ 81 VIRTIO_GPU_RESP_ERR_UNSPEC = 0x1200, 82 VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY, 83 VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID, 84 VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID, 85 VIRTIO_GPU_RESP_ERR_INVALID_CONTEXT_ID, 86 VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER, 87 }; 88 89 #define VIRTIO_GPU_FLAG_FENCE (1 << 0) 90 91 struct virtio_gpu_ctrl_hdr { 92 __le32 type; 93 __le32 flags; 94 __le64 fence_id; 95 __le32 ctx_id; 96 __le32 padding; 97 }; 98 99 /* data passed in the cursor vq */ 100 101 struct virtio_gpu_cursor_pos { 102 __le32 scanout_id; 103 __le32 x; 104 __le32 y; 105 __le32 padding; 106 }; 107 108 /* VIRTIO_GPU_CMD_UPDATE_CURSOR, VIRTIO_GPU_CMD_MOVE_CURSOR */ 109 struct virtio_gpu_update_cursor { 110 struct virtio_gpu_ctrl_hdr hdr; 111 struct virtio_gpu_cursor_pos pos; /* update & move */ 112 __le32 resource_id; /* update only */ 113 __le32 hot_x; /* update only */ 114 __le32 hot_y; /* update only */ 115 __le32 padding; 116 }; 117 118 /* data passed in the control vq, 2d related */ 119 120 struct virtio_gpu_rect { 121 __le32 x; 122 __le32 y; 123 __le32 width; 124 __le32 height; 125 }; 126 127 /* VIRTIO_GPU_CMD_RESOURCE_UNREF */ 128 struct virtio_gpu_resource_unref { 129 struct virtio_gpu_ctrl_hdr hdr; 130 __le32 resource_id; 131 __le32 padding; 132 }; 133 134 /* VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: create a 2d resource with a format */ 135 struct virtio_gpu_resource_create_2d { 136 struct virtio_gpu_ctrl_hdr hdr; 137 __le32 resource_id; 138 __le32 format; 139 __le32 width; 140 __le32 height; 141 }; 142 143 /* VIRTIO_GPU_CMD_SET_SCANOUT */ 144 struct virtio_gpu_set_scanout { 145 struct virtio_gpu_ctrl_hdr hdr; 146 struct virtio_gpu_rect r; 147 __le32 scanout_id; 148 __le32 resource_id; 149 }; 150 151 /* VIRTIO_GPU_CMD_RESOURCE_FLUSH */ 152 struct virtio_gpu_resource_flush { 153 struct virtio_gpu_ctrl_hdr hdr; 154 struct virtio_gpu_rect r; 155 __le32 resource_id; 156 __le32 padding; 157 }; 158 159 /* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: simple transfer to_host */ 160 struct virtio_gpu_transfer_to_host_2d { 161 struct virtio_gpu_ctrl_hdr hdr; 162 struct virtio_gpu_rect r; 163 __le64 offset; 164 __le32 resource_id; 165 __le32 padding; 166 }; 167 168 struct virtio_gpu_mem_entry { 169 __le64 addr; 170 __le32 length; 171 __le32 padding; 172 }; 173 174 /* VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING */ 175 struct virtio_gpu_resource_attach_backing { 176 struct virtio_gpu_ctrl_hdr hdr; 177 __le32 resource_id; 178 __le32 nr_entries; 179 }; 180 181 /* VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING */ 182 struct virtio_gpu_resource_detach_backing { 183 struct virtio_gpu_ctrl_hdr hdr; 184 __le32 resource_id; 185 __le32 padding; 186 }; 187 188 /* VIRTIO_GPU_RESP_OK_DISPLAY_INFO */ 189 #define VIRTIO_GPU_MAX_SCANOUTS 16 190 struct virtio_gpu_resp_display_info { 191 struct virtio_gpu_ctrl_hdr hdr; 192 struct virtio_gpu_display_one { 193 struct virtio_gpu_rect r; 194 __le32 enabled; 195 __le32 flags; 196 } pmodes[VIRTIO_GPU_MAX_SCANOUTS]; 197 }; 198 199 /* data passed in the control vq, 3d related */ 200 201 struct virtio_gpu_box { 202 __le32 x, y, z; 203 __le32 w, h, d; 204 }; 205 206 /* VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D, VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D */ 207 struct virtio_gpu_transfer_host_3d { 208 struct virtio_gpu_ctrl_hdr hdr; 209 struct virtio_gpu_box box; 210 __le64 offset; 211 __le32 resource_id; 212 __le32 level; 213 __le32 stride; 214 __le32 layer_stride; 215 }; 216 217 /* VIRTIO_GPU_CMD_RESOURCE_CREATE_3D */ 218 #define VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP (1 << 0) 219 struct virtio_gpu_resource_create_3d { 220 struct virtio_gpu_ctrl_hdr hdr; 221 __le32 resource_id; 222 __le32 target; 223 __le32 format; 224 __le32 bind; 225 __le32 width; 226 __le32 height; 227 __le32 depth; 228 __le32 array_size; 229 __le32 last_level; 230 __le32 nr_samples; 231 __le32 flags; 232 __le32 padding; 233 }; 234 235 /* VIRTIO_GPU_CMD_CTX_CREATE */ 236 struct virtio_gpu_ctx_create { 237 struct virtio_gpu_ctrl_hdr hdr; 238 __le32 nlen; 239 __le32 padding; 240 char debug_name[64]; 241 }; 242 243 /* VIRTIO_GPU_CMD_CTX_DESTROY */ 244 struct virtio_gpu_ctx_destroy { 245 struct virtio_gpu_ctrl_hdr hdr; 246 }; 247 248 /* VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE, VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE */ 249 struct virtio_gpu_ctx_resource { 250 struct virtio_gpu_ctrl_hdr hdr; 251 __le32 resource_id; 252 __le32 padding; 253 }; 254 255 /* VIRTIO_GPU_CMD_SUBMIT_3D */ 256 struct virtio_gpu_cmd_submit { 257 struct virtio_gpu_ctrl_hdr hdr; 258 __le32 size; 259 __le32 padding; 260 }; 261 262 #define VIRTIO_GPU_CAPSET_VIRGL 1 263 264 /* VIRTIO_GPU_CMD_GET_CAPSET_INFO */ 265 struct virtio_gpu_get_capset_info { 266 struct virtio_gpu_ctrl_hdr hdr; 267 __le32 capset_index; 268 __le32 padding; 269 }; 270 271 /* VIRTIO_GPU_RESP_OK_CAPSET_INFO */ 272 struct virtio_gpu_resp_capset_info { 273 struct virtio_gpu_ctrl_hdr hdr; 274 __le32 capset_id; 275 __le32 capset_max_version; 276 __le32 capset_max_size; 277 __le32 padding; 278 }; 279 280 /* VIRTIO_GPU_CMD_GET_CAPSET */ 281 struct virtio_gpu_get_capset { 282 struct virtio_gpu_ctrl_hdr hdr; 283 __le32 capset_id; 284 __le32 capset_version; 285 }; 286 287 /* VIRTIO_GPU_RESP_OK_CAPSET */ 288 struct virtio_gpu_resp_capset { 289 struct virtio_gpu_ctrl_hdr hdr; 290 __u8 capset_data[]; 291 }; 292 293 #define VIRTIO_GPU_EVENT_DISPLAY (1 << 0) 294 295 struct virtio_gpu_config { 296 __u32 events_read; 297 __u32 events_clear; 298 __u32 num_scanouts; 299 __u32 num_capsets; 300 }; 301 302 /* simple formats for fbcon/X use */ 303 enum virtio_gpu_formats { 304 VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM = 1, 305 VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM = 2, 306 VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM = 3, 307 VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM = 4, 308 309 VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM = 67, 310 VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM = 68, 311 312 VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM = 121, 313 VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM = 134, 314 }; 315 316 #endif 317