src/gallium/winsys/svga/drm/vmwgfx_drm.h

   1 /**************************************************************************
   2  *
   3  * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
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  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.
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  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 #define DRM_VMW_PARAM_HW_CAPS          4
  72 #define DRM_VMW_PARAM_FIFO_CAPS        5
  73
  74 /**
  75  * struct drm_vmw_getparam_arg
  76  *
  77  * @value: Returned value. //Out
  78  * @param: Parameter to query. //In.
  79  *
  80  * Argument to the DRM_VMW_GET_PARAM Ioctl.
  81  */
  82
  83 struct drm_vmw_getparam_arg {
  84         uint64_t value;
  85         uint32_t param;
  86         uint32_t pad64;
  87 };
  88
  89 /*************************************************************************/
  90 /**
  91  * DRM_VMW_CREATE_CONTEXT - Create a host context.
  92  *
  93  * Allocates a device unique context id, and queues a create context command
  94  * for the host. Does not wait for host completion.
  95  */
  96
  97 /**
  98  * struct drm_vmw_context_arg
  99  *
 100  * @cid: Device unique context ID.
 101  *
 102  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 103  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 104  */
 105
 106 struct drm_vmw_context_arg {
 107         int32_t cid;
 108         uint32_t pad64;
 109 };
 110
 111 /*************************************************************************/
 112 /**
 113  * DRM_VMW_UNREF_CONTEXT - Create a host context.
 114  *
 115  * Frees a global context id, and queues a destroy host command for the host.
 116  * Does not wait for host completion. The context ID can be used directly
 117  * in the command stream and shows up as the same context ID on the host.
 118  */
 119
 120 /*************************************************************************/
 121 /**
 122  * DRM_VMW_CREATE_SURFACE - Create a host suface.
 123  *
 124  * Allocates a device unique surface id, and queues a create surface command
 125  * for the host. Does not wait for host completion. The surface ID can be
 126  * used directly in the command stream and shows up as the same surface
 127  * ID on the host.
 128  */
 129
 130 /**
 131  * struct drm_wmv_surface_create_req
 132  *
 133  * @flags: Surface flags as understood by the host.
 134  * @format: Surface format as understood by the host.
 135  * @mip_levels: Number of mip levels for each face.
 136  * An unused face should have 0 encoded.
 137  * @size_addr: Address of a user-space array of sruct drm_vmw_size
 138  * cast to an uint64_t for 32-64 bit compatibility.
 139  * The size of the array should equal the total number of mipmap levels.
 140  * @shareable: Boolean whether other clients (as identified by file descriptors)
 141  * may reference this surface.
 142  * @scanout: Boolean whether the surface is intended to be used as a
 143  * scanout.
 144  *
 145  * Input data to the DRM_VMW_CREATE_SURFACE Ioctl.
 146  * Output data from the DRM_VMW_REF_SURFACE Ioctl.
 147  */
 148
 149 struct drm_vmw_surface_create_req {
 150         uint32_t flags;
 151         uint32_t format;
 152         uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
 153         uint64_t size_addr;
 154         int32_t shareable;
 155         int32_t scanout;
 156 };
 157
 158 /**
 159  * struct drm_wmv_surface_arg
 160  *
 161  * @sid: Surface id of created surface or surface to destroy or reference.
 162  *
 163  * Output data from the DRM_VMW_CREATE_SURFACE Ioctl.
 164  * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl.
 165  * Input argument to the DRM_VMW_REF_SURFACE Ioctl.
 166  */
 167
 168 struct drm_vmw_surface_arg {
 169         int32_t sid;
 170         uint32_t pad64;
 171 };
 172
 173 /**
 174  * struct drm_vmw_size ioctl.
 175  *
 176  * @width - mip level width
 177  * @height - mip level height
 178  * @depth - mip level depth
 179  *
 180  * Description of a mip level.
 181  * Input data to the DRM_WMW_CREATE_SURFACE Ioctl.
 182  */
 183
 184 struct drm_vmw_size {
 185         uint32_t width;
 186         uint32_t height;
 187         uint32_t depth;
 188         uint32_t pad64;
 189 };
 190
 191 /**
 192  * union drm_vmw_surface_create_arg
 193  *
 194  * @rep: Output data as described above.
 195  * @req: Input data as described above.
 196  *
 197  * Argument to the DRM_VMW_CREATE_SURFACE Ioctl.
 198  */
 199
 200 union drm_vmw_surface_create_arg {
 201         struct drm_vmw_surface_arg rep;
 202         struct drm_vmw_surface_create_req req;
 203 };
 204
 205 /*************************************************************************/
 206 /**
 207  * DRM_VMW_REF_SURFACE - Reference a host surface.
 208  *
 209  * Puts a reference on a host surface with a give sid, as previously
 210  * returned by the DRM_VMW_CREATE_SURFACE ioctl.
 211  * A reference will make sure the surface isn't destroyed while we hold
 212  * it and will allow the calling client to use the surface ID in the command
 213  * stream.
 214  *
 215  * On successful return, the Ioctl returns the surface information given
 216  * in the DRM_VMW_CREATE_SURFACE ioctl.
 217  */
 218
 219 /**
 220  * union drm_vmw_surface_reference_arg
 221  *
 222  * @rep: Output data as described above.
 223  * @req: Input data as described above.
 224  *
 225  * Argument to the DRM_VMW_REF_SURFACE Ioctl.
 226  */
 227
 228 union drm_vmw_surface_reference_arg {
 229         struct drm_vmw_surface_create_req rep;
 230         struct drm_vmw_surface_arg req;
 231 };
 232
 233 /*************************************************************************/
 234 /**
 235  * DRM_VMW_UNREF_SURFACE - Unreference a host surface.
 236  *
 237  * Clear a reference previously put on a host surface.
 238  * When all references are gone, including the one implicitly placed
 239  * on creation,
 240  * a destroy surface command will be queued for the host.
 241  * Does not wait for completion.
 242  */
 243
 244 /*************************************************************************/
 245 /**
 246  * DRM_VMW_EXECBUF
 247  *
 248  * Submit a command buffer for execution on the host, and return a
 249  * fence sequence that when signaled, indicates that the command buffer has
 250  * executed.
 251  */
 252
 253 /**
 254  * struct drm_vmw_execbuf_arg
 255  *
 256  * @commands: User-space address of a command buffer cast to an uint64_t.
 257  * @command-size: Size in bytes of the command buffer.
 258  * @throttle-us: Sleep until software is less than @throttle_us
 259  * microseconds ahead of hardware. The driver may round this value
 260  * to the nearest kernel tick.
 261  * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an
 262  * uint64_t.
 263  * @version: Allows expanding the execbuf ioctl parameters without breaking
 264  * backwards compatibility, since user-space will always tell the kernel
 265  * which version it uses.
 266  * @flags: Execbuf flags. None currently.
 267  *
 268  * Argument to the DRM_VMW_EXECBUF Ioctl.
 269  */
 270
 271 #define DRM_VMW_EXECBUF_VERSION 0
 272
 273 struct drm_vmw_execbuf_arg {
 274         uint64_t commands;
 275         uint32_t command_size;
 276         uint32_t throttle_us;
 277         uint64_t fence_rep;
 278          uint32_t version;
 279          uint32_t flags;
 280 };
 281
 282 /**
 283  * struct drm_vmw_fence_rep
 284  *
 285  * @fence_seq: Fence sequence associated with a command submission.
 286  * @error: This member should've been set to -EFAULT on submission.
 287  * The following actions should be take on completion:
 288  * error == -EFAULT: Fence communication failed. The host is synchronized.
 289  * Use the last fence id read from the FIFO fence register.
 290  * error != 0 && error != -EFAULT:
 291  * Fence submission failed. The host is synchronized. Use the fence_seq member.
 292  * error == 0: All is OK, The host may not be synchronized.
 293  * Use the fence_seq member.
 294  *
 295  * Input / Output data to the DRM_VMW_EXECBUF Ioctl.
 296  */
 297
 298 struct drm_vmw_fence_rep {
 299         uint64_t fence_seq;
 300         int32_t error;
 301         uint32_t pad64;
 302 };
 303
 304 /*************************************************************************/
 305 /**
 306  * DRM_VMW_ALLOC_DMABUF
 307  *
 308  * Allocate a DMA buffer that is visible also to the host.
 309  * NOTE: The buffer is
 310  * identified by a handle and an offset, which are private to the guest, but
 311  * useable in the command stream. The guest kernel may translate these
 312  * and patch up the command stream accordingly. In the future, the offset may
 313  * be zero at all times, or it may disappear from the interface before it is
 314  * fixed.
 315  *
 316  * The DMA buffer may stay user-space mapped in the guest at all times,
 317  * and is thus suitable for sub-allocation.
 318  *
 319  * DMA buffers are mapped using the mmap() syscall on the drm device.
 320  */
 321
 322 /**
 323  * struct drm_vmw_alloc_dmabuf_req
 324  *
 325  * @size: Required minimum size of the buffer.
 326  *
 327  * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl.
 328  */
 329
 330 struct drm_vmw_alloc_dmabuf_req {
 331         uint32_t size;
 332         uint32_t pad64;
 333 };
 334
 335 /**
 336  * struct drm_vmw_dmabuf_rep
 337  *
 338  * @map_handle: Offset to use in the mmap() call used to map the buffer.
 339  * @handle: Handle unique to this buffer. Used for unreferencing.
 340  * @cur_gmr_id: GMR id to use in the command stream when this buffer is
 341  * referenced. See not above.
 342  * @cur_gmr_offset: Offset to use in the command stream when this buffer is
 343  * referenced. See note above.
 344  *
 345  * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl.
 346  */
 347
 348 struct drm_vmw_dmabuf_rep {
 349         uint64_t map_handle;
 350         uint32_t handle;
 351         uint32_t cur_gmr_id;
 352         uint32_t cur_gmr_offset;
 353         uint32_t pad64;
 354 };
 355
 356 /**
 357  * union drm_vmw_dmabuf_arg
 358  *
 359  * @req: Input data as described above.
 360  * @rep: Output data as described above.
 361  *
 362  * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl.
 363  */
 364
 365 union drm_vmw_alloc_dmabuf_arg {
 366         struct drm_vmw_alloc_dmabuf_req req;
 367         struct drm_vmw_dmabuf_rep rep;
 368 };
 369
 370 /*************************************************************************/
 371 /**
 372  * DRM_VMW_UNREF_DMABUF - Free a DMA buffer.
 373  *
 374  */
 375
 376 /**
 377  * struct drm_vmw_unref_dmabuf_arg
 378  *
 379  * @handle: Handle indicating what buffer to free. Obtained from the
 380  * DRM_VMW_ALLOC_DMABUF Ioctl.
 381  *
 382  * Argument to the DRM_VMW_UNREF_DMABUF Ioctl.
 383  */
 384
 385 struct drm_vmw_unref_dmabuf_arg {
 386         uint32_t handle;
 387         uint32_t pad64;
 388 };
 389
 390 /*************************************************************************/
 391 /**
 392  * DRM_VMW_FIFO_DEBUG - Get last FIFO submission.
 393  *
 394  * This IOCTL copies the last FIFO submission directly out of the FIFO buffer.
 395  */
 396
 397 /**
 398  * struct drm_vmw_fifo_debug_arg
 399  *
 400  * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In
 401  * @debug_buffer_size: Size in bytes of debug buffer //In
 402  * @used_size: Number of bytes copied to the buffer // Out
 403  * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out
 404  *
 405  * Argument to the DRM_VMW_FIFO_DEBUG Ioctl.
 406  */
 407
 408 struct drm_vmw_fifo_debug_arg {
 409         uint64_t debug_buffer;
 410         uint32_t debug_buffer_size;
 411         uint32_t used_size;
 412         int32_t did_not_fit;
 413         uint32_t pad64;
 414 };
 415
 416 struct drm_vmw_fence_wait_arg {
 417         uint64_t sequence;
 418         uint64_t kernel_cookie;
 419         int32_t cookie_valid;
 420         int32_t pad64;
 421 };
 422
 423 /*************************************************************************/
 424 /**
 425  * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams.
 426  *
 427  * This IOCTL controls the overlay units of the svga device.
 428  * The SVGA overlay units does not work like regular hardware units in
 429  * that they do not automaticaly read back the contents of the given dma
 430  * buffer. But instead only read back for each call to this ioctl, and
 431  * at any point between this call being made and a following call that
 432  * either changes the buffer or disables the stream.
 433  */
 434
 435 /**
 436  * struct drm_vmw_rect
 437  *
 438  * Defines a rectangle. Used in the overlay ioctl to define
 439  * source and destination rectangle.
 440  */
 441
 442 struct drm_vmw_rect {
 443         int32_t x;
 444         int32_t y;
 445         uint32_t w;
 446         uint32_t h;
 447 };
 448
 449 /**
 450  * struct drm_vmw_control_stream_arg
 451  *
 452  * @stream_id: Stearm to control
 453  * @enabled: If false all following arguments are ignored.
 454  * @handle: Handle to buffer for getting data from.
 455  * @format: Format of the overlay as understood by the host.
 456  * @width: Width of the overlay.
 457  * @height: Height of the overlay.
 458  * @size: Size of the overlay in bytes.
 459  * @pitch: Array of pitches, the two last are only used for YUV12 formats.
 460  * @offset: Offset from start of dma buffer to overlay.
 461  * @src: Source rect, must be within the defined area above.
 462  * @dst: Destination rect, x and y may be negative.
 463  *
 464  * Argument to the DRM_VMW_CONTROL_STREAM Ioctl.
 465  */
 466
 467 struct drm_vmw_control_stream_arg {
 468         uint32_t stream_id;
 469         uint32_t enabled;
 470
 471         uint32_t flags;
 472         uint32_t color_key;
 473
 474         uint32_t handle;
 475         uint32_t offset;
 476         int32_t format;
 477         uint32_t size;
 478         uint32_t width;
 479         uint32_t height;
 480         uint32_t pitch[3];
 481
 482         uint32_t pad64;
 483         struct drm_vmw_rect src;
 484         struct drm_vmw_rect dst;
 485 };
 486
 487 /*************************************************************************/
 488 /**
 489  * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass.
 490  *
 491  */
 492
 493 #define DRM_VMW_CURSOR_BYPASS_ALL    (1 << 0)
 494 #define DRM_VMW_CURSOR_BYPASS_FLAGS       (1)
 495
 496 /**
 497  * struct drm_vmw_cursor_bypass_arg
 498  *
 499  * @flags: Flags.
 500  * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed.
 501  * @xpos: X position of cursor.
 502  * @ypos: Y position of cursor.
 503  * @xhot: X hotspot.
 504  * @yhot: Y hotspot.
 505  *
 506  * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl.
 507  */
 508
 509 struct drm_vmw_cursor_bypass_arg {
 510         uint32_t flags;
 511         uint32_t crtc_id;
 512         int32_t xpos;
 513         int32_t ypos;
 514         int32_t xhot;
 515         int32_t yhot;
 516 };
 517
 518 /*************************************************************************/
 519 /**
 520  * DRM_VMW_CLAIM_STREAM - Claim a single stream.
 521  */
 522
 523 /**
 524  * struct drm_vmw_context_arg
 525  *
 526  * @stream_id: Device unique context ID.
 527  *
 528  * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl.
 529  * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl.
 530  */
 531
 532 struct drm_vmw_stream_arg {
 533         uint32_t stream_id;
 534         uint32_t pad64;
 535 };
 536
 537 /*************************************************************************/
 538 /**
 539  * DRM_VMW_UNREF_STREAM - Unclaim a stream.
 540  *
 541  * Return a single stream that was claimed by this process. Also makes
 542  * sure that the stream has been stopped.
 543  */
 544
 545 #endif