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