src/gallium/winsys/drm/vmware/core/vmwgfx_drm.h

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #ifndef __VMWGFX_DRM_H__
  29 #define __VMWGFX_DRM_H__
  30
  31 #define DRM_VMW_MAX_SURFACE_FACES 6
  32 #define DRM_VMW_MAX_MIP_LEVELS 24
  33
  34 #define DRM_VMW_EXT_NAME_LEN 128
  35
  36 #define DRM_VMW_GET_PARAM            0
  37 #define DRM_VMW_ALLOC_DMABUF         1
  38 #define DRM_VMW_UNREF_DMABUF         2
  39 #define DRM_VMW_CURSOR_BYPASS        3
  40 /* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/
  41 #define DRM_VMW_CONTROL_STREAM       4
  42 #define DRM_VMW_CLAIM_STREAM         5
  43 #define DRM_VMW_UNREF_STREAM         6
  44 /* guarded by DRM_VMW_PARAM_3D == 1 */
  45 #define DRM_VMW_CREATE_CONTEXT       7
  46 #define DRM_VMW_UNREF_CONTEXT        8
  47 #define DRM_VMW_CREATE_SURFACE       9
  48 #define DRM_VMW_UNREF_SURFACE        10
  49 #define DRM_VMW_REF_SURFACE          11
  50 #define DRM_VMW_EXECBUF              12
  51 #define DRM_VMW_FIFO_DEBUG           13
  52 #define DRM_VMW_FENCE_WAIT           14
  53
  54
  55 /*************************************************************************/
  56 /**
  57  * DRM_VMW_GET_PARAM - get device information.
  58  *
  59  * DRM_VMW_PARAM_FIFO_OFFSET:
  60  * Offset to use to map the first page of the FIFO read-only.
  61  * The fifo is mapped using the mmap() system call on the drm device.
  62  *
  63  * DRM_VMW_PARAM_OVERLAY_IOCTL:
  64  * Does the driver support the overlay ioctl.
  65  */
  66
  67 #define DRM_VMW_PARAM_NUM_STREAMS      0
  68 #define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
  69 #define DRM_VMW_PARAM_3D               2
  70 #define DRM_VMW_PARAM_FIFO_OFFSET      3
  71
  72
  73 /**
  74  * struct drm_vmw_getparam_arg
  75  *
  76  * @value: Returned value. //Out
  77  * @param: Parameter to query. //In.
  78  *
  79  * Argument to the DRM_VMW_GET_PARAM Ioctl.
  80  */
  81
  82 struct drm_vmw_getparam_arg {
  83         uint64_t value;
  84         uint32_t param;
  85         uint32_t pad64;
  86 };
  87
  88 /*************************************************************************/
  89 /**
  90  * DRM_VMW_EXTENSION - Query device extensions.
  91  */
  92
  93 /**
  94  * struct drm_vmw_extension_rep
  95  *
  96  * @exists: The queried extension exists.
  97  * @driver_ioctl_offset: Ioctl number of the first ioctl in the extension.
  98  * @driver_sarea_offset: Offset to any space in the DRI SAREA
  99  * used by the extension.
 100  * @major: Major version number of the extension.
 101  * @minor: Minor version number of the extension.
 102  * @pl: Patch level version number of the extension.
 103  *
 104  * Output argument to the DRM_VMW_EXTENSION Ioctl.
 105  */
 106
 107 struct drm_vmw_extension_rep {
 108         int32_t exists;
 109         uint32_t driver_ioctl_offset;
 110         uint32_t driver_sarea_offset;
 111         uint32_t major;
 112         uint32_t minor;
 113         uint32_t pl;
 114         uint32_t pad64;
 115 };
 116
 117 /**
 118  * union drm_vmw_extension_arg
 119  *
 120  * @extension - Ascii name of the extension to be queried. //In
 121  * @rep - Reply as defined above. //Out
 122  *
 123  * Argument to the DRM_VMW_EXTENSION Ioctl.
 124  */
 125
 126 union drm_vmw_extension_arg {
 127         char extension[DRM_VMW_EXT_NAME_LEN];
 128         struct drm_vmw_extension_rep rep;
 129 };
 130
 131 /*************************************************************************/
 132 /**
 133  * DRM_VMW_CREATE_CONTEXT - Create a host context.
 134  *
 135  * Allocates a device unique context id, and queues a create context command
 136  * for the host. Does not wait for host completion.
 137  */
 138
 139 /**
 140  * struct drm_vmw_context_arg
 141  *
 142  * @cid: Device unique context ID.
 143  *
 144  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 145  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 146  */
 147
 148 struct drm_vmw_context_arg {
 149         int32_t cid;
 150         uint32_t pad64;
 151 };
 152
 153 /*************************************************************************/
 154 /**
 155  * DRM_VMW_UNREF_CONTEXT - Create a host context.
 156  *
 157  * Frees a global context id, and queues a destroy host command for the host.
 158  * Does not wait for host completion. The context ID can be used directly
 159  * in the command stream and shows up as the same context ID on the host.
 160  */
 161
 162 /*************************************************************************/
 163 /**
 164  * DRM_VMW_CREATE_SURFACE - Create a host suface.
 165  *
 166  * Allocates a device unique surface id, and queues a create surface command
 167  * for the host. Does not wait for host completion. The surface ID can be
 168  * used directly in the command stream and shows up as the same surface
 169  * ID on the host.
 170  */
 171
 172 /**
 173  * struct drm_wmv_surface_create_req
 174  *
 175  * @flags: Surface flags as understood by the host.
 176  * @format: Surface format as understood by the host.
 177  * @mip_levels: Number of mip levels for each face.
 178  * An unused face should have 0 encoded.
 179  * @size_addr: Address of a user-space array of sruct drm_vmw_size
 180  * cast to an uint64_t for 32-64 bit compatibility.
 181  * The size of the array should equal the total number of mipmap levels.
 182  * @shareable: Boolean whether other clients (as identified by file descriptors)
 183  * may reference this surface.
 184  *
 185  * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
 186  * Output data from the DRM_VMW_REF_SURFACE Ioctl.
 187  */
 188
 189 struct drm_vmw_surface_create_req {
 190         uint32_t flags;
 191         uint32_t format;
 192         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 193         uint64_t size_addr;
 194         int32_t shareable;
 195         uint32_t pad64;
 196 };
 197
 198 /**
 199  * struct drm_wmv_surface_arg
 200  *
 201  * @sid: Surface id of created surface or surface to destroy or reference.
 202  *
 203  * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
 204  * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
 205  * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
 206  */
 207
 208 struct drm_vmw_surface_arg {
 209         int32_t sid;
 210         uint32_t pad64;
 211 };
 212
 213 /**
 214  * struct drm_vmw_size ioctl.
 215  *
 216  * @width - mip level width
 217  * @height - mip level height
 218  * @depth - mip level depth
 219  *
 220  * Description of a mip level.
 221  * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
 222  */
 223
 224 struct drm_vmw_size {
 225         uint32_t width;
 226         uint32_t height;
 227         uint32_t depth;
 228         uint32_t pad64;
 229 };
 230
 231 /**
 232  * union drm_vmw_surface_create_arg
 233  *
 234  * @rep: Output data as described above.
 235  * @req: Input data as described above.
 236  *
 237  * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
 238  */
 239
 240 union drm_vmw_surface_create_arg {
 241         struct drm_vmw_surface_arg rep;
 242         struct drm_vmw_surface_create_req req;
 243 };
 244
 245 /*************************************************************************/
 246 /**
 247  * DRM_VMW_REF_SURFACE - Reference a host surface.
 248  *
 249  * Puts a reference on a host surface with a give sid, as previously
 250  * returned by the DRM_VMW_CREATE_SURFACE ioctl.
 251  * A reference will make sure the surface isn't destroyed while we hold
 252  * it and will allow the calling client to use the surface ID in the command
 253  * stream.
 254  *
 255  * On successful return, the Ioctl returns the surface information given
 256  * in the DRM_VMW_CREATE_SURFACE ioctl.
 257  */
 258
 259 /**
 260  * union drm_vmw_surface_reference_arg
 261  *
 262  * @rep: Output data as described above.
 263  * @req: Input data as described above.
 264  *
 265  * Argument to the DRM_VMW_REF_SURFACE Ioctl.
 266  */
 267
 268 union drm_vmw_surface_reference_arg {
 269         struct drm_vmw_surface_create_req rep;
 270         struct drm_vmw_surface_arg req;
 271 };
 272
 273 /*************************************************************************/
 274 /**
 275  * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
 276  *
 277  * Clear a reference previously put on a host surface.
 278  * When all references are gone, including the one implicitly placed
 279  * on creation,
 280  * a destroy surface command will be queued for the host.
 281  * Does not wait for completion.
 282  */
 283
 284 /*************************************************************************/
 285 /**
 286  * DRM_VMW_EXECBUF
 287  *
 288  * Submit a command buffer for execution on the host, and return a
 289  * fence sequence that when signaled, indicates that the command buffer has
 290  * executed.
 291  */
 292
 293 /**
 294  * struct drm_vmw_execbuf_arg
 295  *
 296  * @commands: User-space address of a command buffer cast to an uint64_t.
 297  * @command-size: Size in bytes of the command buffer.
 298  * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
 299  * uint64_t.
 300  *
 301  * Argument to the DRM_VMW_EXECBUF Ioctl.
 302  */
 303
 304 struct drm_vmw_execbuf_arg {
 305         uint64_t commands;
 306         uint32_t command_size;
 307         uint32_t pad64;
 308         uint64_t fence_rep;
 309 };
 310
 311 /**
 312  * struct drm_vmw_fence_rep
 313  *
 314  * @fence_seq: Fence sequence associated with a command submission.
 315  * @error: This member should've been set to -EFAULT on submission.
 316  * The following actions should be take on completion:
 317  * error == -EFAULT: Fence communication failed. The host is synchronized.
 318  * Use the last fence id read from the FIFO fence register.
 319  * error != 0 && error != -EFAULT:
 320  * Fence submission failed. The host is synchronized. Use the fence_seq member.
 321  * error == 0: All is OK, The host may not be synchronized.
 322  * Use the fence_seq member.
 323  *
 324  * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
 325  */
 326
 327 struct drm_vmw_fence_rep {
 328         uint64_t fence_seq;
 329         int32_t error;
 330         uint32_t pad64;
 331 };
 332
 333 /*************************************************************************/
 334 /**
 335  * DRM_VMW_ALLOC_DMABUF
 336  *
 337  * Allocate a DMA buffer that is visible also to the host.
 338  * NOTE: The buffer is
 339  * identified by a handle and an offset, which are private to the guest, but
 340  * useable in the command stream. The guest kernel may translate these
 341  * and patch up the command stream accordingly. In the future, the offset may
 342  * be zero at all times, or it may disappear from the interface before it is
 343  * fixed.
 344  *
 345  * The DMA buffer may stay user-space mapped in the guest at all times,
 346  * and is thus suitable for sub-allocation.
 347  *
 348  * DMA buffers are mapped using the mmap() syscall on the drm device.
 349  */
 350
 351 /**
 352  * struct drm_vmw_alloc_dmabuf_req
 353  *
 354  * @size: Required minimum size of the buffer.
 355  *
 356  * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
 357  */
 358
 359 struct drm_vmw_alloc_dmabuf_req {
 360         uint32_t size;
 361         uint32_t pad64;
 362 };
 363
 364 /**
 365  * struct drm_vmw_dmabuf_rep
 366  *
 367  * @map_handle: Offset to use in the mmap() call used to map the buffer.
 368  * @handle: Handle unique to this buffer. Used for unreferencing.
 369  * @cur_gmr_id: GMR id to use in the command stream when this buffer is
 370  * referenced. See not above.
 371  * @cur_gmr_offset: Offset to use in the command stream when this buffer is
 372  * referenced. See note above.
 373  *
 374  * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
 375  */
 376
 377 struct drm_vmw_dmabuf_rep {
 378         uint64_t map_handle;
 379         uint32_t handle;
 380         uint32_t cur_gmr_id;
 381         uint32_t cur_gmr_offset;
 382         uint32_t pad64;
 383 };
 384
 385 /**
 386  * union drm_vmw_dmabuf_arg
 387  *
 388  * @req: Input data as described above.
 389  * @rep: Output data as described above.
 390  *
 391  * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
 392  */
 393
 394 union drm_vmw_alloc_dmabuf_arg {
 395         struct drm_vmw_alloc_dmabuf_req req;
 396         struct drm_vmw_dmabuf_rep rep;
 397 };
 398
 399 /*************************************************************************/
 400 /**
 401  * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
 402  *
 403  */
 404
 405 /**
 406  * struct drm_vmw_unref_dmabuf_arg
 407  *
 408  * @handle: Handle indicating what buffer to free. Obtained from the
 409  * DRM_VMW_ALLOC_DMABUF Ioctl.
 410  *
 411  * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
 412  */
 413
 414 struct drm_vmw_unref_dmabuf_arg {
 415         uint32_t handle;
 416         uint32_t pad64;
 417 };
 418
 419 /*************************************************************************/
 420 /**
 421  * DRM_VMW_FIFO_DEBUG - Get last FIFO submission.
 422  *
 423  * This IOCTL copies the last FIFO submission directly out of the FIFO buffer.
 424  */
 425
 426 /**
 427  * struct drm_vmw_fifo_debug_arg
 428  *
 429  * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In
 430  * @debug_buffer_size: Size in bytes of debug buffer //In
 431  * @used_size: Number of bytes copied to the buffer // Out
 432  * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out
 433  *
 434  * Argument to the DRM_VMW_FIFO_DEBUG Ioctl.
 435  */
 436
 437 struct drm_vmw_fifo_debug_arg {
 438         uint64_t debug_buffer;
 439         uint32_t debug_buffer_size;
 440         uint32_t used_size;
 441         int32_t did_not_fit;
 442         uint32_t pad64;
 443 };
 444
 445 struct drm_vmw_fence_wait_arg {
 446         uint64_t sequence;
 447         uint64_t kernel_cookie;
 448         int32_t cookie_valid;
 449         int32_t pad64;
 450 };
 451
 452 /*************************************************************************/
 453 /**
 454  * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
 455  *
 456  * This IOCTL controls the overlay units of the svga device.
 457  * The SVGA overlay units does not work like regular hardware units in
 458  * that they do not automaticaly read back the contents of the given dma
 459  * buffer. But instead only read back for each call to this ioctl, and
 460  * at any point between this call being made and a following call that
 461  * either changes the buffer or disables the stream.
 462  */
 463
 464 /**
 465  * struct drm_vmw_rect
 466  *
 467  * Defines a rectangle. Used in the overlay ioctl to define
 468  * source and destination rectangle.
 469  */
 470
 471 struct drm_vmw_rect {
 472         int32_t x;
 473         int32_t y;
 474         uint32_t w;
 475         uint32_t h;
 476 };
 477
 478 /**
 479  * struct drm_vmw_control_stream_arg
 480  *
 481  * @stream_id: Stearm to control
 482  * @enabled: If false all following arguments are ignored.
 483  * @handle: Handle to buffer for getting data from.
 484  * @format: Format of the overlay as understood by the host.
 485  * @width: Width of the overlay.
 486  * @height: Height of the overlay.
 487  * @size: Size of the overlay in bytes.
 488  * @pitch: Array of pitches, the two last are only used for YUV12 formats.
 489  * @offset: Offset from start of dma buffer to overlay.
 490  * @src: Source rect, must be within the defined area above.
 491  * @dst: Destination rect, x and y may be negative.
 492  *
 493  * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
 494  */
 495
 496 struct drm_vmw_control_stream_arg {
 497         uint32_t stream_id;
 498         uint32_t enabled;
 499
 500         uint32_t flags;
 501         uint32_t color_key;
 502
 503         uint32_t handle;
 504         uint32_t offset;
 505         int32_t format;
 506         uint32_t size;
 507         uint32_t width;
 508         uint32_t height;
 509         uint32_t pitch[3];
 510
 511         uint32_t pad64;
 512         struct drm_vmw_rect src;
 513         struct drm_vmw_rect dst;
 514 };
 515
 516 /*************************************************************************/
 517 /**
 518  * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
 519  *
 520  */
 521
 522 #define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
 523 #define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
 524
 525 /**
 526  * struct drm_vmw_cursor_bypass_arg
 527  *
 528  * @flags: Flags.
 529  * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
 530  * @xpos: X position of cursor.
 531  * @ypos: Y position of cursor.
 532  * @xhot: X hotspot.
 533  * @yhot: Y hotspot.
 534  *
 535  * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
 536  */
 537
 538 struct drm_vmw_cursor_bypass_arg {
 539         uint32_t flags;
 540         uint32_t crtc_id;
 541         int32_t xpos;
 542         int32_t ypos;
 543         int32_t xhot;
 544         int32_t yhot;
 545 };
 546
 547 /*************************************************************************/
 548 /**
 549  * DRM_VMW_CLAIM_STREAM - Claim a single stream.
 550  */
 551
 552 /**
 553  * struct drm_vmw_context_arg
 554  *
 555  * @stream_id: Device unique context ID.
 556  *
 557  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 558  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 559  */
 560
 561 struct drm_vmw_stream_arg {
 562         uint32_t stream_id;
 563         uint32_t pad64;
 564 };
 565
 566 /*************************************************************************/
 567 /**
 568  * DRM_VMW_UNREF_STREAM - Unclaim a stream.
 569  *
 570  * Return a single stream that was claimed by this process. Also makes
 571  * sure that the stream has been stopped.
 572  */
 573
 574 #endif