include/drm/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 /* guarded by minor version >= 2 */
  54 #define DRM_VMW_UPDATE_LAYOUT        15
  55
  56
  57 /*************************************************************************/
  58 /**
  59  * DRM_VMW_GET_PARAM - get device information.
  60  *
  61  * DRM_VMW_PARAM_FIFO_OFFSET:
  62  * Offset to use to map the first page of the FIFO read-only.
  63  * The fifo is mapped using the mmap() system call on the drm device.
  64  *
  65  * DRM_VMW_PARAM_OVERLAY_IOCTL:
  66  * Does the driver support the overlay ioctl.
  67  */
  68
  69 #define DRM_VMW_PARAM_NUM_STREAMS      0
  70 #define DRM_VMW_PARAM_NUM_FREE_STREAMS 1
  71 #define DRM_VMW_PARAM_3D               2
  72 #define DRM_VMW_PARAM_FIFO_OFFSET      3
  73 #define DRM_VMW_PARAM_HW_CAPS          4
  74 #define DRM_VMW_PARAM_FIFO_CAPS        5
  75 #define DRM_VMW_PARAM_MAX_FB_SIZE      6
  76
  77 /**
  78  * struct drm_vmw_getparam_arg
  79  *
  80  * @value: Returned value. //Out
  81  * @param: Parameter to query. //In.
  82  *
  83  * Argument to the DRM_VMW_GET_PARAM Ioctl.
  84  */
  85
  86 struct drm_vmw_getparam_arg {
  87         uint64_t value;
  88         uint32_t param;
  89         uint32_t pad64;
  90 };
  91
  92 /*************************************************************************/
  93 /**
  94  * DRM_VMW_EXTENSION - Query device extensions.
  95  */
  96
  97 /**
  98  * struct drm_vmw_extension_rep
  99  *
 100  * @exists: The queried extension exists.
 101  * @driver_ioctl_offset: Ioctl number of the first ioctl in the extension.
 102  * @driver_sarea_offset: Offset to any space in the DRI SAREA
 103  * used by the extension.
 104  * @major: Major version number of the extension.
 105  * @minor: Minor version number of the extension.
 106  * @pl: Patch level version number of the extension.
 107  *
 108  * Output argument to the DRM_VMW_EXTENSION Ioctl.
 109  */
 110
 111 struct drm_vmw_extension_rep {
 112         int32_t exists;
 113         uint32_t driver_ioctl_offset;
 114         uint32_t driver_sarea_offset;
 115         uint32_t major;
 116         uint32_t minor;
 117         uint32_t pl;
 118         uint32_t pad64;
 119 };
 120
 121 /**
 122  * union drm_vmw_extension_arg
 123  *
 124  * @extension - Ascii name of the extension to be queried. //In
 125  * @rep - Reply as defined above. //Out
 126  *
 127  * Argument to the DRM_VMW_EXTENSION Ioctl.
 128  */
 129
 130 union drm_vmw_extension_arg {
 131         char extension[DRM_VMW_EXT_NAME_LEN];
 132         struct drm_vmw_extension_rep rep;
 133 };
 134
 135 /*************************************************************************/
 136 /**
 137  * DRM_VMW_CREATE_CONTEXT - Create a host context.
 138  *
 139  * Allocates a device unique context id, and queues a create context command
 140  * for the host. Does not wait for host completion.
 141  */
 142
 143 /**
 144  * struct drm_vmw_context_arg
 145  *
 146  * @cid: Device unique context ID.
 147  *
 148  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 149  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 150  */
 151
 152 struct drm_vmw_context_arg {
 153         int32_t cid;
 154         uint32_t pad64;
 155 };
 156
 157 /*************************************************************************/
 158 /**
 159  * DRM_VMW_UNREF_CONTEXT - Create a host context.
 160  *
 161  * Frees a global context id, and queues a destroy host command for the host.
 162  * Does not wait for host completion. The context ID can be used directly
 163  * in the command stream and shows up as the same context ID on the host.
 164  */
 165
 166 /*************************************************************************/
 167 /**
 168  * DRM_VMW_CREATE_SURFACE - Create a host suface.
 169  *
 170  * Allocates a device unique surface id, and queues a create surface command
 171  * for the host. Does not wait for host completion. The surface ID can be
 172  * used directly in the command stream and shows up as the same surface
 173  * ID on the host.
 174  */
 175
 176 /**
 177  * struct drm_wmv_surface_create_req
 178  *
 179  * @flags: Surface flags as understood by the host.
 180  * @format: Surface format as understood by the host.
 181  * @mip_levels: Number of mip levels for each face.
 182  * An unused face should have 0 encoded.
 183  * @size_addr: Address of a user-space array of sruct drm_vmw_size
 184  * cast to an uint64_t for 32-64 bit compatibility.
 185  * The size of the array should equal the total number of mipmap levels.
 186  * @shareable: Boolean whether other clients (as identified by file descriptors)
 187  * may reference this surface.
 188  * @scanout: Boolean whether the surface is intended to be used as a
 189  * scanout.
 190  *
 191  * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
 192  * Output data from the DRM_VMW_REF_SURFACE Ioctl.
 193  */
 194
 195 struct drm_vmw_surface_create_req {
 196         uint32_t flags;
 197         uint32_t format;
 198         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 199         uint64_t size_addr;
 200         int32_t shareable;
 201         int32_t scanout;
 202 };
 203
 204 /**
 205  * struct drm_wmv_surface_arg
 206  *
 207  * @sid: Surface id of created surface or surface to destroy or reference.
 208  *
 209  * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
 210  * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
 211  * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
 212  */
 213
 214 struct drm_vmw_surface_arg {
 215         int32_t sid;
 216         uint32_t pad64;
 217 };
 218
 219 /**
 220  * struct drm_vmw_size ioctl.
 221  *
 222  * @width - mip level width
 223  * @height - mip level height
 224  * @depth - mip level depth
 225  *
 226  * Description of a mip level.
 227  * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
 228  */
 229
 230 struct drm_vmw_size {
 231         uint32_t width;
 232         uint32_t height;
 233         uint32_t depth;
 234         uint32_t pad64;
 235 };
 236
 237 /**
 238  * union drm_vmw_surface_create_arg
 239  *
 240  * @rep: Output data as described above.
 241  * @req: Input data as described above.
 242  *
 243  * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
 244  */
 245
 246 union drm_vmw_surface_create_arg {
 247         struct drm_vmw_surface_arg rep;
 248         struct drm_vmw_surface_create_req req;
 249 };
 250
 251 /*************************************************************************/
 252 /**
 253  * DRM_VMW_REF_SURFACE - Reference a host surface.
 254  *
 255  * Puts a reference on a host surface with a give sid, as previously
 256  * returned by the DRM_VMW_CREATE_SURFACE ioctl.
 257  * A reference will make sure the surface isn't destroyed while we hold
 258  * it and will allow the calling client to use the surface ID in the command
 259  * stream.
 260  *
 261  * On successful return, the Ioctl returns the surface information given
 262  * in the DRM_VMW_CREATE_SURFACE ioctl.
 263  */
 264
 265 /**
 266  * union drm_vmw_surface_reference_arg
 267  *
 268  * @rep: Output data as described above.
 269  * @req: Input data as described above.
 270  *
 271  * Argument to the DRM_VMW_REF_SURFACE Ioctl.
 272  */
 273
 274 union drm_vmw_surface_reference_arg {
 275         struct drm_vmw_surface_create_req rep;
 276         struct drm_vmw_surface_arg req;
 277 };
 278
 279 /*************************************************************************/
 280 /**
 281  * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
 282  *
 283  * Clear a reference previously put on a host surface.
 284  * When all references are gone, including the one implicitly placed
 285  * on creation,
 286  * a destroy surface command will be queued for the host.
 287  * Does not wait for completion.
 288  */
 289
 290 /*************************************************************************/
 291 /**
 292  * DRM_VMW_EXECBUF
 293  *
 294  * Submit a command buffer for execution on the host, and return a
 295  * fence sequence that when signaled, indicates that the command buffer has
 296  * executed.
 297  */
 298
 299 /**
 300  * struct drm_vmw_execbuf_arg
 301  *
 302  * @commands: User-space address of a command buffer cast to an uint64_t.
 303  * @command-size: Size in bytes of the command buffer.
 304  * @throttle-us: Sleep until software is less than @throttle_us
 305  * microseconds ahead of hardware. The driver may round this value
 306  * to the nearest kernel tick.
 307  * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
 308  * uint64_t.
 309  * @version: Allows expanding the execbuf ioctl parameters without breaking
 310  * backwards compatibility, since user-space will always tell the kernel
 311  * which version it uses.
 312  * @flags: Execbuf flags. None currently.
 313  *
 314  * Argument to the DRM_VMW_EXECBUF Ioctl.
 315  */
 316
 317 #define DRM_VMW_EXECBUF_VERSION 0
 318
 319 struct drm_vmw_execbuf_arg {
 320         uint64_t commands;
 321         uint32_t command_size;
 322         uint32_t throttle_us;
 323         uint64_t fence_rep;
 324          uint32_t version;
 325          uint32_t flags;
 326 };
 327
 328 /**
 329  * struct drm_vmw_fence_rep
 330  *
 331  * @fence_seq: Fence sequence associated with a command submission.
 332  * @error: This member should've been set to -EFAULT on submission.
 333  * The following actions should be take on completion:
 334  * error == -EFAULT: Fence communication failed. The host is synchronized.
 335  * Use the last fence id read from the FIFO fence register.
 336  * error != 0 && error != -EFAULT:
 337  * Fence submission failed. The host is synchronized. Use the fence_seq member.
 338  * error == 0: All is OK, The host may not be synchronized.
 339  * Use the fence_seq member.
 340  *
 341  * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
 342  */
 343
 344 struct drm_vmw_fence_rep {
 345         uint64_t fence_seq;
 346         int32_t error;
 347         uint32_t pad64;
 348 };
 349
 350 /*************************************************************************/
 351 /**
 352  * DRM_VMW_ALLOC_DMABUF
 353  *
 354  * Allocate a DMA buffer that is visible also to the host.
 355  * NOTE: The buffer is
 356  * identified by a handle and an offset, which are private to the guest, but
 357  * useable in the command stream. The guest kernel may translate these
 358  * and patch up the command stream accordingly. In the future, the offset may
 359  * be zero at all times, or it may disappear from the interface before it is
 360  * fixed.
 361  *
 362  * The DMA buffer may stay user-space mapped in the guest at all times,
 363  * and is thus suitable for sub-allocation.
 364  *
 365  * DMA buffers are mapped using the mmap() syscall on the drm device.
 366  */
 367
 368 /**
 369  * struct drm_vmw_alloc_dmabuf_req
 370  *
 371  * @size: Required minimum size of the buffer.
 372  *
 373  * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
 374  */
 375
 376 struct drm_vmw_alloc_dmabuf_req {
 377         uint32_t size;
 378         uint32_t pad64;
 379 };
 380
 381 /**
 382  * struct drm_vmw_dmabuf_rep
 383  *
 384  * @map_handle: Offset to use in the mmap() call used to map the buffer.
 385  * @handle: Handle unique to this buffer. Used for unreferencing.
 386  * @cur_gmr_id: GMR id to use in the command stream when this buffer is
 387  * referenced. See not above.
 388  * @cur_gmr_offset: Offset to use in the command stream when this buffer is
 389  * referenced. See note above.
 390  *
 391  * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
 392  */
 393
 394 struct drm_vmw_dmabuf_rep {
 395         uint64_t map_handle;
 396         uint32_t handle;
 397         uint32_t cur_gmr_id;
 398         uint32_t cur_gmr_offset;
 399         uint32_t pad64;
 400 };
 401
 402 /**
 403  * union drm_vmw_dmabuf_arg
 404  *
 405  * @req: Input data as described above.
 406  * @rep: Output data as described above.
 407  *
 408  * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
 409  */
 410
 411 union drm_vmw_alloc_dmabuf_arg {
 412         struct drm_vmw_alloc_dmabuf_req req;
 413         struct drm_vmw_dmabuf_rep rep;
 414 };
 415
 416 /*************************************************************************/
 417 /**
 418  * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
 419  *
 420  */
 421
 422 /**
 423  * struct drm_vmw_unref_dmabuf_arg
 424  *
 425  * @handle: Handle indicating what buffer to free. Obtained from the
 426  * DRM_VMW_ALLOC_DMABUF Ioctl.
 427  *
 428  * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
 429  */
 430
 431 struct drm_vmw_unref_dmabuf_arg {
 432         uint32_t handle;
 433         uint32_t pad64;
 434 };
 435
 436 /*************************************************************************/
 437 /**
 438  * DRM_VMW_FIFO_DEBUG - Get last FIFO submission.
 439  *
 440  * This IOCTL copies the last FIFO submission directly out of the FIFO buffer.
 441  */
 442
 443 /**
 444  * struct drm_vmw_fifo_debug_arg
 445  *
 446  * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In
 447  * @debug_buffer_size: Size in bytes of debug buffer //In
 448  * @used_size: Number of bytes copied to the buffer // Out
 449  * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out
 450  *
 451  * Argument to the DRM_VMW_FIFO_DEBUG Ioctl.
 452  */
 453
 454 struct drm_vmw_fifo_debug_arg {
 455         uint64_t debug_buffer;
 456         uint32_t debug_buffer_size;
 457         uint32_t used_size;
 458         int32_t did_not_fit;
 459         uint32_t pad64;
 460 };
 461
 462 struct drm_vmw_fence_wait_arg {
 463         uint64_t sequence;
 464         uint64_t kernel_cookie;
 465         int32_t cookie_valid;
 466         int32_t pad64;
 467 };
 468
 469 /*************************************************************************/
 470 /**
 471  * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
 472  *
 473  * This IOCTL controls the overlay units of the svga device.
 474  * The SVGA overlay units does not work like regular hardware units in
 475  * that they do not automaticaly read back the contents of the given dma
 476  * buffer. But instead only read back for each call to this ioctl, and
 477  * at any point between this call being made and a following call that
 478  * either changes the buffer or disables the stream.
 479  */
 480
 481 /**
 482  * struct drm_vmw_rect
 483  *
 484  * Defines a rectangle. Used in the overlay ioctl to define
 485  * source and destination rectangle.
 486  */
 487
 488 struct drm_vmw_rect {
 489         int32_t x;
 490         int32_t y;
 491         uint32_t w;
 492         uint32_t h;
 493 };
 494
 495 /**
 496  * struct drm_vmw_control_stream_arg
 497  *
 498  * @stream_id: Stearm to control
 499  * @enabled: If false all following arguments are ignored.
 500  * @handle: Handle to buffer for getting data from.
 501  * @format: Format of the overlay as understood by the host.
 502  * @width: Width of the overlay.
 503  * @height: Height of the overlay.
 504  * @size: Size of the overlay in bytes.
 505  * @pitch: Array of pitches, the two last are only used for YUV12 formats.
 506  * @offset: Offset from start of dma buffer to overlay.
 507  * @src: Source rect, must be within the defined area above.
 508  * @dst: Destination rect, x and y may be negative.
 509  *
 510  * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
 511  */
 512
 513 struct drm_vmw_control_stream_arg {
 514         uint32_t stream_id;
 515         uint32_t enabled;
 516
 517         uint32_t flags;
 518         uint32_t color_key;
 519
 520         uint32_t handle;
 521         uint32_t offset;
 522         int32_t format;
 523         uint32_t size;
 524         uint32_t width;
 525         uint32_t height;
 526         uint32_t pitch[3];
 527
 528         uint32_t pad64;
 529         struct drm_vmw_rect src;
 530         struct drm_vmw_rect dst;
 531 };
 532
 533 /*************************************************************************/
 534 /**
 535  * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
 536  *
 537  */
 538
 539 #define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
 540 #define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
 541
 542 /**
 543  * struct drm_vmw_cursor_bypass_arg
 544  *
 545  * @flags: Flags.
 546  * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
 547  * @xpos: X position of cursor.
 548  * @ypos: Y position of cursor.
 549  * @xhot: X hotspot.
 550  * @yhot: Y hotspot.
 551  *
 552  * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
 553  */
 554
 555 struct drm_vmw_cursor_bypass_arg {
 556         uint32_t flags;
 557         uint32_t crtc_id;
 558         int32_t xpos;
 559         int32_t ypos;
 560         int32_t xhot;
 561         int32_t yhot;
 562 };
 563
 564 /*************************************************************************/
 565 /**
 566  * DRM_VMW_CLAIM_STREAM - Claim a single stream.
 567  */
 568
 569 /**
 570  * struct drm_vmw_context_arg
 571  *
 572  * @stream_id: Device unique context ID.
 573  *
 574  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 575  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 576  */
 577
 578 struct drm_vmw_stream_arg {
 579         uint32_t stream_id;
 580         uint32_t pad64;
 581 };
 582
 583 /*************************************************************************/
 584 /**
 585  * DRM_VMW_UNREF_STREAM - Unclaim a stream.
 586  *
 587  * Return a single stream that was claimed by this process. Also makes
 588  * sure that the stream has been stopped.
 589  */
 590
 591 /*************************************************************************/
 592 /**
 593  * DRM_VMW_UPDATE_LAYOUT - Update layout
 594  *
 595  * Updates the prefered modes and connection status for connectors. The
 596  * command conisits of one drm_vmw_update_layout_arg pointing out a array
 597  * of num_outputs drm_vmw_rect's.
 598  */
 599
 600 /**
 601  * struct drm_vmw_update_layout_arg
 602  *
 603  * @num_outputs: number of active
 604  * @rects: pointer to array of drm_vmw_rect
 605  *
 606  * Input argument to the DRM_VMW_UPDATE_LAYOUT Ioctl.
 607  */
 608
 609 struct drm_vmw_update_layout_arg {
 610         uint32_t num_outputs;
 611         uint32_t pad64;
 612         uint64_t rects;
 613 };
 614
 615 #endif