1 /************************************************************************** 2 * 3 * Copyright © 2011-2015 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 #include "vmwgfx_kms.h" 29 #include <drm/drm_plane_helper.h> 30 #include <drm/drm_atomic.h> 31 #include <drm/drm_atomic_helper.h> 32 33 34 #define vmw_crtc_to_sou(x) \ 35 container_of(x, struct vmw_screen_object_unit, base.crtc) 36 #define vmw_encoder_to_sou(x) \ 37 container_of(x, struct vmw_screen_object_unit, base.encoder) 38 #define vmw_connector_to_sou(x) \ 39 container_of(x, struct vmw_screen_object_unit, base.connector) 40 41 /** 42 * struct vmw_kms_sou_surface_dirty - Closure structure for 43 * blit surface to screen command. 44 * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). 45 * @left: Left side of bounding box. 46 * @right: Right side of bounding box. 47 * @top: Top side of bounding box. 48 * @bottom: Bottom side of bounding box. 49 * @dst_x: Difference between source clip rects and framebuffer coordinates. 50 * @dst_y: Difference between source clip rects and framebuffer coordinates. 51 * @sid: Surface id of surface to copy from. 52 */ 53 struct vmw_kms_sou_surface_dirty { 54 struct vmw_kms_dirty base; 55 s32 left, right, top, bottom; 56 s32 dst_x, dst_y; 57 u32 sid; 58 }; 59 60 /* 61 * SVGA commands that are used by this code. Please see the device headers 62 * for explanation. 63 */ 64 struct vmw_kms_sou_readback_blit { 65 uint32 header; 66 SVGAFifoCmdBlitScreenToGMRFB body; 67 }; 68 69 struct vmw_kms_sou_dmabuf_blit { 70 uint32 header; 71 SVGAFifoCmdBlitGMRFBToScreen body; 72 }; 73 74 struct vmw_kms_sou_dirty_cmd { 75 SVGA3dCmdHeader header; 76 SVGA3dCmdBlitSurfaceToScreen body; 77 }; 78 79 /** 80 * Display unit using screen objects. 81 */ 82 struct vmw_screen_object_unit { 83 struct vmw_display_unit base; 84 85 unsigned long buffer_size; /**< Size of allocated buffer */ 86 struct vmw_dma_buffer *buffer; /**< Backing store buffer */ 87 88 bool defined; 89 }; 90 91 static void vmw_sou_destroy(struct vmw_screen_object_unit *sou) 92 { 93 vmw_du_cleanup(&sou->base); 94 kfree(sou); 95 } 96 97 98 /* 99 * Screen Object Display Unit CRTC functions 100 */ 101 102 static void vmw_sou_crtc_destroy(struct drm_crtc *crtc) 103 { 104 vmw_sou_destroy(vmw_crtc_to_sou(crtc)); 105 } 106 107 /** 108 * Send the fifo command to create a screen. 109 */ 110 static int vmw_sou_fifo_create(struct vmw_private *dev_priv, 111 struct vmw_screen_object_unit *sou, 112 uint32_t x, uint32_t y, 113 struct drm_display_mode *mode) 114 { 115 size_t fifo_size; 116 117 struct { 118 struct { 119 uint32_t cmdType; 120 } header; 121 SVGAScreenObject obj; 122 } *cmd; 123 124 BUG_ON(!sou->buffer); 125 126 fifo_size = sizeof(*cmd); 127 cmd = vmw_fifo_reserve(dev_priv, fifo_size); 128 /* The hardware has hung, nothing we can do about it here. */ 129 if (unlikely(cmd == NULL)) { 130 DRM_ERROR("Fifo reserve failed.\n"); 131 return -ENOMEM; 132 } 133 134 memset(cmd, 0, fifo_size); 135 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN; 136 cmd->obj.structSize = sizeof(SVGAScreenObject); 137 cmd->obj.id = sou->base.unit; 138 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT | 139 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0); 140 cmd->obj.size.width = mode->hdisplay; 141 cmd->obj.size.height = mode->vdisplay; 142 if (sou->base.is_implicit) { 143 cmd->obj.root.x = x; 144 cmd->obj.root.y = y; 145 } else { 146 cmd->obj.root.x = sou->base.gui_x; 147 cmd->obj.root.y = sou->base.gui_y; 148 } 149 sou->base.set_gui_x = cmd->obj.root.x; 150 sou->base.set_gui_y = cmd->obj.root.y; 151 152 /* Ok to assume that buffer is pinned in vram */ 153 vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr); 154 cmd->obj.backingStore.pitch = mode->hdisplay * 4; 155 156 vmw_fifo_commit(dev_priv, fifo_size); 157 158 sou->defined = true; 159 160 return 0; 161 } 162 163 /** 164 * Send the fifo command to destroy a screen. 165 */ 166 static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv, 167 struct vmw_screen_object_unit *sou) 168 { 169 size_t fifo_size; 170 int ret; 171 172 struct { 173 struct { 174 uint32_t cmdType; 175 } header; 176 SVGAFifoCmdDestroyScreen body; 177 } *cmd; 178 179 /* no need to do anything */ 180 if (unlikely(!sou->defined)) 181 return 0; 182 183 fifo_size = sizeof(*cmd); 184 cmd = vmw_fifo_reserve(dev_priv, fifo_size); 185 /* the hardware has hung, nothing we can do about it here */ 186 if (unlikely(cmd == NULL)) { 187 DRM_ERROR("Fifo reserve failed.\n"); 188 return -ENOMEM; 189 } 190 191 memset(cmd, 0, fifo_size); 192 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN; 193 cmd->body.screenId = sou->base.unit; 194 195 vmw_fifo_commit(dev_priv, fifo_size); 196 197 /* Force sync */ 198 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); 199 if (unlikely(ret != 0)) 200 DRM_ERROR("Failed to sync with HW"); 201 else 202 sou->defined = false; 203 204 return ret; 205 } 206 207 /** 208 * vmw_sou_crtc_mode_set_nofb - Create new screen 209 * 210 * @crtc: CRTC associated with the new screen 211 * 212 * This function creates/destroys a screen. This function cannot fail, so if 213 * somehow we run into a failure, just do the best we can to get out. 214 */ 215 static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc) 216 { 217 struct vmw_private *dev_priv; 218 struct vmw_screen_object_unit *sou; 219 struct vmw_framebuffer *vfb; 220 struct drm_framebuffer *fb; 221 struct drm_plane_state *ps; 222 struct vmw_plane_state *vps; 223 int ret; 224 225 226 sou = vmw_crtc_to_sou(crtc); 227 dev_priv = vmw_priv(crtc->dev); 228 ps = crtc->primary->state; 229 fb = ps->fb; 230 vps = vmw_plane_state_to_vps(ps); 231 232 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 233 234 if (sou->defined) { 235 ret = vmw_sou_fifo_destroy(dev_priv, sou); 236 if (ret) { 237 DRM_ERROR("Failed to destroy Screen Object\n"); 238 return; 239 } 240 } 241 242 if (vfb) { 243 sou->buffer = vps->dmabuf; 244 sou->buffer_size = vps->dmabuf_size; 245 246 ret = vmw_sou_fifo_create(dev_priv, sou, crtc->x, crtc->y, 247 &crtc->mode); 248 if (ret) 249 DRM_ERROR("Failed to define Screen Object %dx%d\n", 250 crtc->x, crtc->y); 251 252 vmw_kms_add_active(dev_priv, &sou->base, vfb); 253 } else { 254 sou->buffer = NULL; 255 sou->buffer_size = 0; 256 257 vmw_kms_del_active(dev_priv, &sou->base); 258 } 259 } 260 261 /** 262 * vmw_sou_crtc_helper_prepare - Noop 263 * 264 * @crtc: CRTC associated with the new screen 265 * 266 * Prepares the CRTC for a mode set, but we don't need to do anything here. 267 */ 268 static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc) 269 { 270 } 271 272 /** 273 * vmw_sou_crtc_atomic_enable - Noop 274 * 275 * @crtc: CRTC associated with the new screen 276 * 277 * This is called after a mode set has been completed. 278 */ 279 static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc, 280 struct drm_crtc_state *old_state) 281 { 282 } 283 284 /** 285 * vmw_sou_crtc_atomic_disable - Turns off CRTC 286 * 287 * @crtc: CRTC to be turned off 288 */ 289 static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc, 290 struct drm_crtc_state *old_state) 291 { 292 struct vmw_private *dev_priv; 293 struct vmw_screen_object_unit *sou; 294 int ret; 295 296 297 if (!crtc) { 298 DRM_ERROR("CRTC is NULL\n"); 299 return; 300 } 301 302 sou = vmw_crtc_to_sou(crtc); 303 dev_priv = vmw_priv(crtc->dev); 304 305 if (sou->defined) { 306 ret = vmw_sou_fifo_destroy(dev_priv, sou); 307 if (ret) 308 DRM_ERROR("Failed to destroy Screen Object\n"); 309 } 310 } 311 312 static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc, 313 struct drm_framebuffer *new_fb, 314 struct drm_pending_vblank_event *event, 315 uint32_t flags, 316 struct drm_modeset_acquire_ctx *ctx) 317 { 318 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 319 struct drm_framebuffer *old_fb = crtc->primary->fb; 320 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb); 321 struct vmw_fence_obj *fence = NULL; 322 struct drm_vmw_rect vclips; 323 int ret; 324 325 if (!vmw_kms_crtc_flippable(dev_priv, crtc)) 326 return -EINVAL; 327 328 flags &= ~DRM_MODE_PAGE_FLIP_ASYNC; 329 ret = drm_atomic_helper_page_flip(crtc, new_fb, NULL, flags, ctx); 330 if (ret) { 331 DRM_ERROR("Page flip error %d.\n", ret); 332 return ret; 333 } 334 335 /* do a full screen dirty update */ 336 vclips.x = crtc->x; 337 vclips.y = crtc->y; 338 vclips.w = crtc->mode.hdisplay; 339 vclips.h = crtc->mode.vdisplay; 340 341 if (vfb->dmabuf) 342 ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, vfb, 343 NULL, &vclips, 1, 1, 344 true, &fence); 345 else 346 ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb, 347 NULL, &vclips, NULL, 348 0, 0, 1, 1, &fence); 349 350 351 if (ret != 0) 352 goto out_no_fence; 353 if (!fence) { 354 ret = -EINVAL; 355 goto out_no_fence; 356 } 357 358 if (event) { 359 struct drm_file *file_priv = event->base.file_priv; 360 361 ret = vmw_event_fence_action_queue(file_priv, fence, 362 &event->base, 363 &event->event.vbl.tv_sec, 364 &event->event.vbl.tv_usec, 365 true); 366 } 367 368 /* 369 * No need to hold on to this now. The only cleanup 370 * we need to do if we fail is unref the fence. 371 */ 372 vmw_fence_obj_unreference(&fence); 373 374 if (vmw_crtc_to_du(crtc)->is_implicit) 375 vmw_kms_update_implicit_fb(dev_priv, crtc); 376 377 return ret; 378 379 out_no_fence: 380 drm_atomic_set_fb_for_plane(crtc->primary->state, old_fb); 381 return ret; 382 } 383 384 static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = { 385 .gamma_set = vmw_du_crtc_gamma_set, 386 .destroy = vmw_sou_crtc_destroy, 387 .reset = vmw_du_crtc_reset, 388 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 389 .atomic_destroy_state = vmw_du_crtc_destroy_state, 390 .set_config = vmw_kms_set_config, 391 .page_flip = vmw_sou_crtc_page_flip, 392 }; 393 394 /* 395 * Screen Object Display Unit encoder functions 396 */ 397 398 static void vmw_sou_encoder_destroy(struct drm_encoder *encoder) 399 { 400 vmw_sou_destroy(vmw_encoder_to_sou(encoder)); 401 } 402 403 static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = { 404 .destroy = vmw_sou_encoder_destroy, 405 }; 406 407 /* 408 * Screen Object Display Unit connector functions 409 */ 410 411 static void vmw_sou_connector_destroy(struct drm_connector *connector) 412 { 413 vmw_sou_destroy(vmw_connector_to_sou(connector)); 414 } 415 416 static const struct drm_connector_funcs vmw_sou_connector_funcs = { 417 .dpms = vmw_du_connector_dpms, 418 .detect = vmw_du_connector_detect, 419 .fill_modes = vmw_du_connector_fill_modes, 420 .set_property = vmw_du_connector_set_property, 421 .destroy = vmw_sou_connector_destroy, 422 .reset = vmw_du_connector_reset, 423 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 424 .atomic_destroy_state = vmw_du_connector_destroy_state, 425 .atomic_set_property = vmw_du_connector_atomic_set_property, 426 .atomic_get_property = vmw_du_connector_atomic_get_property, 427 }; 428 429 430 static const struct 431 drm_connector_helper_funcs vmw_sou_connector_helper_funcs = { 432 .best_encoder = drm_atomic_helper_best_encoder, 433 }; 434 435 436 437 /* 438 * Screen Object Display Plane Functions 439 */ 440 441 /** 442 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer 443 * 444 * @plane: display plane 445 * @old_state: Contains the FB to clean up 446 * 447 * Unpins the display surface 448 * 449 * Returns 0 on success 450 */ 451 static void 452 vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane, 453 struct drm_plane_state *old_state) 454 { 455 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 456 457 vmw_dmabuf_unreference(&vps->dmabuf); 458 vps->dmabuf_size = 0; 459 460 vmw_du_plane_cleanup_fb(plane, old_state); 461 } 462 463 464 /** 465 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer 466 * 467 * @plane: display plane 468 * @new_state: info on the new plane state, including the FB 469 * 470 * The SOU backing buffer is our equivalent of the display plane. 471 * 472 * Returns 0 on success 473 */ 474 static int 475 vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane, 476 struct drm_plane_state *new_state) 477 { 478 struct drm_framebuffer *new_fb = new_state->fb; 479 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc; 480 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 481 struct vmw_private *dev_priv; 482 size_t size; 483 int ret; 484 485 486 if (!new_fb) { 487 vmw_dmabuf_unreference(&vps->dmabuf); 488 vps->dmabuf_size = 0; 489 490 return 0; 491 } 492 493 size = new_state->crtc_w * new_state->crtc_h * 4; 494 495 if (vps->dmabuf) { 496 if (vps->dmabuf_size == size) 497 return 0; 498 499 vmw_dmabuf_unreference(&vps->dmabuf); 500 vps->dmabuf_size = 0; 501 } 502 503 vps->dmabuf = kzalloc(sizeof(*vps->dmabuf), GFP_KERNEL); 504 if (!vps->dmabuf) 505 return -ENOMEM; 506 507 dev_priv = vmw_priv(crtc->dev); 508 vmw_svga_enable(dev_priv); 509 510 /* After we have alloced the backing store might not be able to 511 * resume the overlays, this is preferred to failing to alloc. 512 */ 513 vmw_overlay_pause_all(dev_priv); 514 ret = vmw_dmabuf_init(dev_priv, vps->dmabuf, size, 515 &vmw_vram_ne_placement, 516 false, &vmw_dmabuf_bo_free); 517 vmw_overlay_resume_all(dev_priv); 518 519 if (ret != 0) 520 vps->dmabuf = NULL; /* vmw_dmabuf_init frees on error */ 521 else 522 vps->dmabuf_size = size; 523 524 return ret; 525 } 526 527 528 static void 529 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane, 530 struct drm_plane_state *old_state) 531 { 532 struct drm_crtc *crtc = plane->state->crtc; 533 534 if (crtc) 535 crtc->primary->fb = plane->state->fb; 536 } 537 538 539 static const struct drm_plane_funcs vmw_sou_plane_funcs = { 540 .update_plane = drm_atomic_helper_update_plane, 541 .disable_plane = drm_atomic_helper_disable_plane, 542 .destroy = vmw_du_primary_plane_destroy, 543 .reset = vmw_du_plane_reset, 544 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 545 .atomic_destroy_state = vmw_du_plane_destroy_state, 546 }; 547 548 static const struct drm_plane_funcs vmw_sou_cursor_funcs = { 549 .update_plane = drm_atomic_helper_update_plane, 550 .disable_plane = drm_atomic_helper_disable_plane, 551 .destroy = vmw_du_cursor_plane_destroy, 552 .reset = vmw_du_plane_reset, 553 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 554 .atomic_destroy_state = vmw_du_plane_destroy_state, 555 }; 556 557 /* 558 * Atomic Helpers 559 */ 560 static const struct 561 drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = { 562 .atomic_check = vmw_du_cursor_plane_atomic_check, 563 .atomic_update = vmw_du_cursor_plane_atomic_update, 564 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 565 .cleanup_fb = vmw_du_plane_cleanup_fb, 566 }; 567 568 static const struct 569 drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = { 570 .atomic_check = vmw_du_primary_plane_atomic_check, 571 .atomic_update = vmw_sou_primary_plane_atomic_update, 572 .prepare_fb = vmw_sou_primary_plane_prepare_fb, 573 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb, 574 }; 575 576 static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = { 577 .prepare = vmw_sou_crtc_helper_prepare, 578 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb, 579 .atomic_check = vmw_du_crtc_atomic_check, 580 .atomic_begin = vmw_du_crtc_atomic_begin, 581 .atomic_flush = vmw_du_crtc_atomic_flush, 582 .atomic_enable = vmw_sou_crtc_atomic_enable, 583 .atomic_disable = vmw_sou_crtc_atomic_disable, 584 }; 585 586 587 static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) 588 { 589 struct vmw_screen_object_unit *sou; 590 struct drm_device *dev = dev_priv->dev; 591 struct drm_connector *connector; 592 struct drm_encoder *encoder; 593 struct drm_plane *primary, *cursor; 594 struct drm_crtc *crtc; 595 int ret; 596 597 sou = kzalloc(sizeof(*sou), GFP_KERNEL); 598 if (!sou) 599 return -ENOMEM; 600 601 sou->base.unit = unit; 602 crtc = &sou->base.crtc; 603 encoder = &sou->base.encoder; 604 connector = &sou->base.connector; 605 primary = &sou->base.primary; 606 cursor = &sou->base.cursor; 607 608 sou->base.active_implicit = false; 609 sou->base.pref_active = (unit == 0); 610 sou->base.pref_width = dev_priv->initial_width; 611 sou->base.pref_height = dev_priv->initial_height; 612 sou->base.pref_mode = NULL; 613 614 /* 615 * Remove this after enabling atomic because property values can 616 * only exist in a state object 617 */ 618 sou->base.is_implicit = false; 619 620 /* Initialize primary plane */ 621 vmw_du_plane_reset(primary); 622 623 ret = drm_universal_plane_init(dev, &sou->base.primary, 624 0, &vmw_sou_plane_funcs, 625 vmw_primary_plane_formats, 626 ARRAY_SIZE(vmw_primary_plane_formats), 627 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 628 if (ret) { 629 DRM_ERROR("Failed to initialize primary plane"); 630 goto err_free; 631 } 632 633 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs); 634 635 /* Initialize cursor plane */ 636 vmw_du_plane_reset(cursor); 637 638 ret = drm_universal_plane_init(dev, &sou->base.cursor, 639 0, &vmw_sou_cursor_funcs, 640 vmw_cursor_plane_formats, 641 ARRAY_SIZE(vmw_cursor_plane_formats), 642 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 643 if (ret) { 644 DRM_ERROR("Failed to initialize cursor plane"); 645 drm_plane_cleanup(&sou->base.primary); 646 goto err_free; 647 } 648 649 drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs); 650 651 vmw_du_connector_reset(connector); 652 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs, 653 DRM_MODE_CONNECTOR_VIRTUAL); 654 if (ret) { 655 DRM_ERROR("Failed to initialize connector\n"); 656 goto err_free; 657 } 658 659 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs); 660 connector->status = vmw_du_connector_detect(connector, true); 661 vmw_connector_state_to_vcs(connector->state)->is_implicit = false; 662 663 664 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs, 665 DRM_MODE_ENCODER_VIRTUAL, NULL); 666 if (ret) { 667 DRM_ERROR("Failed to initialize encoder\n"); 668 goto err_free_connector; 669 } 670 671 (void) drm_mode_connector_attach_encoder(connector, encoder); 672 encoder->possible_crtcs = (1 << unit); 673 encoder->possible_clones = 0; 674 675 ret = drm_connector_register(connector); 676 if (ret) { 677 DRM_ERROR("Failed to register connector\n"); 678 goto err_free_encoder; 679 } 680 681 682 vmw_du_crtc_reset(crtc); 683 ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary, 684 &sou->base.cursor, 685 &vmw_screen_object_crtc_funcs, NULL); 686 if (ret) { 687 DRM_ERROR("Failed to initialize CRTC\n"); 688 goto err_free_unregister; 689 } 690 691 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs); 692 693 drm_mode_crtc_set_gamma_size(crtc, 256); 694 695 drm_object_attach_property(&connector->base, 696 dev_priv->hotplug_mode_update_property, 1); 697 drm_object_attach_property(&connector->base, 698 dev->mode_config.suggested_x_property, 0); 699 drm_object_attach_property(&connector->base, 700 dev->mode_config.suggested_y_property, 0); 701 if (dev_priv->implicit_placement_property) 702 drm_object_attach_property 703 (&connector->base, 704 dev_priv->implicit_placement_property, 705 sou->base.is_implicit); 706 707 return 0; 708 709 err_free_unregister: 710 drm_connector_unregister(connector); 711 err_free_encoder: 712 drm_encoder_cleanup(encoder); 713 err_free_connector: 714 drm_connector_cleanup(connector); 715 err_free: 716 kfree(sou); 717 return ret; 718 } 719 720 int vmw_kms_sou_init_display(struct vmw_private *dev_priv) 721 { 722 struct drm_device *dev = dev_priv->dev; 723 int i, ret; 724 725 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { 726 DRM_INFO("Not using screen objects," 727 " missing cap SCREEN_OBJECT_2\n"); 728 return -ENOSYS; 729 } 730 731 ret = -ENOMEM; 732 dev_priv->num_implicit = 0; 733 dev_priv->implicit_fb = NULL; 734 735 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 736 if (unlikely(ret != 0)) 737 return ret; 738 739 vmw_kms_create_implicit_placement_property(dev_priv, false); 740 741 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) 742 vmw_sou_init(dev_priv, i); 743 744 dev_priv->active_display_unit = vmw_du_screen_object; 745 746 DRM_INFO("Screen Objects Display Unit initialized\n"); 747 748 return 0; 749 } 750 751 static int do_dmabuf_define_gmrfb(struct vmw_private *dev_priv, 752 struct vmw_framebuffer *framebuffer) 753 { 754 struct vmw_dma_buffer *buf = 755 container_of(framebuffer, struct vmw_framebuffer_dmabuf, 756 base)->buffer; 757 int depth = framebuffer->base.format->depth; 758 struct { 759 uint32_t header; 760 SVGAFifoCmdDefineGMRFB body; 761 } *cmd; 762 763 /* Emulate RGBA support, contrary to svga_reg.h this is not 764 * supported by hosts. This is only a problem if we are reading 765 * this value later and expecting what we uploaded back. 766 */ 767 if (depth == 32) 768 depth = 24; 769 770 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 771 if (!cmd) { 772 DRM_ERROR("Out of fifo space for dirty framebuffer command.\n"); 773 return -ENOMEM; 774 } 775 776 cmd->header = SVGA_CMD_DEFINE_GMRFB; 777 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8; 778 cmd->body.format.colorDepth = depth; 779 cmd->body.format.reserved = 0; 780 cmd->body.bytesPerLine = framebuffer->base.pitches[0]; 781 /* Buffer is reserved in vram or GMR */ 782 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr); 783 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 784 785 return 0; 786 } 787 788 /** 789 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a 790 * blit surface to screen command. 791 * 792 * @dirty: The closure structure. 793 * 794 * Fills in the missing fields in the command, and translates the cliprects 795 * to match the destination bounding box encoded. 796 */ 797 static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty) 798 { 799 struct vmw_kms_sou_surface_dirty *sdirty = 800 container_of(dirty, typeof(*sdirty), base); 801 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 802 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x; 803 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y; 804 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect); 805 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 806 int i; 807 808 if (!dirty->num_hits) { 809 vmw_fifo_commit(dirty->dev_priv, 0); 810 return; 811 } 812 813 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 814 cmd->header.size = sizeof(cmd->body) + region_size; 815 816 /* 817 * Use the destination bounding box to specify destination - and 818 * source bounding regions. 819 */ 820 cmd->body.destRect.left = sdirty->left; 821 cmd->body.destRect.right = sdirty->right; 822 cmd->body.destRect.top = sdirty->top; 823 cmd->body.destRect.bottom = sdirty->bottom; 824 825 cmd->body.srcRect.left = sdirty->left + trans_x; 826 cmd->body.srcRect.right = sdirty->right + trans_x; 827 cmd->body.srcRect.top = sdirty->top + trans_y; 828 cmd->body.srcRect.bottom = sdirty->bottom + trans_y; 829 830 cmd->body.srcImage.sid = sdirty->sid; 831 cmd->body.destScreenId = dirty->unit->unit; 832 833 /* Blits are relative to the destination rect. Translate. */ 834 for (i = 0; i < dirty->num_hits; ++i, ++blit) { 835 blit->left -= sdirty->left; 836 blit->right -= sdirty->left; 837 blit->top -= sdirty->top; 838 blit->bottom -= sdirty->top; 839 } 840 841 vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd)); 842 843 sdirty->left = sdirty->top = S32_MAX; 844 sdirty->right = sdirty->bottom = S32_MIN; 845 } 846 847 /** 848 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect. 849 * 850 * @dirty: The closure structure 851 * 852 * Encodes a SVGASignedRect cliprect and updates the bounding box of the 853 * BLIT_SURFACE_TO_SCREEN command. 854 */ 855 static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty) 856 { 857 struct vmw_kms_sou_surface_dirty *sdirty = 858 container_of(dirty, typeof(*sdirty), base); 859 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 860 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 861 862 /* Destination rect. */ 863 blit += dirty->num_hits; 864 blit->left = dirty->unit_x1; 865 blit->top = dirty->unit_y1; 866 blit->right = dirty->unit_x2; 867 blit->bottom = dirty->unit_y2; 868 869 /* Destination bounding box */ 870 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 871 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 872 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 873 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 874 875 dirty->num_hits++; 876 } 877 878 /** 879 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer 880 * 881 * @dev_priv: Pointer to the device private structure. 882 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 883 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 884 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 885 * be NULL. 886 * @srf: Pointer to surface to blit from. If NULL, the surface attached 887 * to @framebuffer will be used. 888 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 889 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 890 * @num_clips: Number of clip rects in @clips. 891 * @inc: Increment to use when looping over @clips. 892 * @out_fence: If non-NULL, will return a ref-counted pointer to a 893 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 894 * case the device has already synchronized. 895 * 896 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 897 * interrupted. 898 */ 899 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv, 900 struct vmw_framebuffer *framebuffer, 901 struct drm_clip_rect *clips, 902 struct drm_vmw_rect *vclips, 903 struct vmw_resource *srf, 904 s32 dest_x, 905 s32 dest_y, 906 unsigned num_clips, int inc, 907 struct vmw_fence_obj **out_fence) 908 { 909 struct vmw_framebuffer_surface *vfbs = 910 container_of(framebuffer, typeof(*vfbs), base); 911 struct vmw_kms_sou_surface_dirty sdirty; 912 int ret; 913 914 if (!srf) 915 srf = &vfbs->surface->res; 916 917 ret = vmw_kms_helper_resource_prepare(srf, true); 918 if (ret) 919 return ret; 920 921 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit; 922 sdirty.base.clip = vmw_sou_surface_clip; 923 sdirty.base.dev_priv = dev_priv; 924 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) + 925 sizeof(SVGASignedRect) * num_clips; 926 927 sdirty.sid = srf->id; 928 sdirty.left = sdirty.top = S32_MAX; 929 sdirty.right = sdirty.bottom = S32_MIN; 930 sdirty.dst_x = dest_x; 931 sdirty.dst_y = dest_y; 932 933 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 934 dest_x, dest_y, num_clips, inc, 935 &sdirty.base); 936 vmw_kms_helper_resource_finish(srf, out_fence); 937 938 return ret; 939 } 940 941 /** 942 * vmw_sou_dmabuf_fifo_commit - Callback to submit a set of readback clips. 943 * 944 * @dirty: The closure structure. 945 * 946 * Commits a previously built command buffer of readback clips. 947 */ 948 static void vmw_sou_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty) 949 { 950 if (!dirty->num_hits) { 951 vmw_fifo_commit(dirty->dev_priv, 0); 952 return; 953 } 954 955 vmw_fifo_commit(dirty->dev_priv, 956 sizeof(struct vmw_kms_sou_dmabuf_blit) * 957 dirty->num_hits); 958 } 959 960 /** 961 * vmw_sou_dmabuf_clip - Callback to encode a readback cliprect. 962 * 963 * @dirty: The closure structure 964 * 965 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect. 966 */ 967 static void vmw_sou_dmabuf_clip(struct vmw_kms_dirty *dirty) 968 { 969 struct vmw_kms_sou_dmabuf_blit *blit = dirty->cmd; 970 971 blit += dirty->num_hits; 972 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 973 blit->body.destScreenId = dirty->unit->unit; 974 blit->body.srcOrigin.x = dirty->fb_x; 975 blit->body.srcOrigin.y = dirty->fb_y; 976 blit->body.destRect.left = dirty->unit_x1; 977 blit->body.destRect.top = dirty->unit_y1; 978 blit->body.destRect.right = dirty->unit_x2; 979 blit->body.destRect.bottom = dirty->unit_y2; 980 dirty->num_hits++; 981 } 982 983 /** 984 * vmw_kms_do_dmabuf_dirty - Dirty part of a dma-buffer backed framebuffer 985 * 986 * @dev_priv: Pointer to the device private structure. 987 * @framebuffer: Pointer to the dma-buffer backed framebuffer. 988 * @clips: Array of clip rects. 989 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 990 * be NULL. 991 * @num_clips: Number of clip rects in @clips. 992 * @increment: Increment to use when looping over @clips. 993 * @interruptible: Whether to perform waits interruptible if possible. 994 * @out_fence: If non-NULL, will return a ref-counted pointer to a 995 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 996 * case the device has already synchronized. 997 * 998 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 999 * interrupted. 1000 */ 1001 int vmw_kms_sou_do_dmabuf_dirty(struct vmw_private *dev_priv, 1002 struct vmw_framebuffer *framebuffer, 1003 struct drm_clip_rect *clips, 1004 struct drm_vmw_rect *vclips, 1005 unsigned num_clips, int increment, 1006 bool interruptible, 1007 struct vmw_fence_obj **out_fence) 1008 { 1009 struct vmw_dma_buffer *buf = 1010 container_of(framebuffer, struct vmw_framebuffer_dmabuf, 1011 base)->buffer; 1012 struct vmw_kms_dirty dirty; 1013 int ret; 1014 1015 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, 1016 false); 1017 if (ret) 1018 return ret; 1019 1020 ret = do_dmabuf_define_gmrfb(dev_priv, framebuffer); 1021 if (unlikely(ret != 0)) 1022 goto out_revert; 1023 1024 dirty.fifo_commit = vmw_sou_dmabuf_fifo_commit; 1025 dirty.clip = vmw_sou_dmabuf_clip; 1026 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_dmabuf_blit) * 1027 num_clips; 1028 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1029 0, 0, num_clips, increment, &dirty); 1030 vmw_kms_helper_buffer_finish(dev_priv, NULL, buf, out_fence, NULL); 1031 1032 return ret; 1033 1034 out_revert: 1035 vmw_kms_helper_buffer_revert(buf); 1036 1037 return ret; 1038 } 1039 1040 1041 /** 1042 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips. 1043 * 1044 * @dirty: The closure structure. 1045 * 1046 * Commits a previously built command buffer of readback clips. 1047 */ 1048 static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty) 1049 { 1050 if (!dirty->num_hits) { 1051 vmw_fifo_commit(dirty->dev_priv, 0); 1052 return; 1053 } 1054 1055 vmw_fifo_commit(dirty->dev_priv, 1056 sizeof(struct vmw_kms_sou_readback_blit) * 1057 dirty->num_hits); 1058 } 1059 1060 /** 1061 * vmw_sou_readback_clip - Callback to encode a readback cliprect. 1062 * 1063 * @dirty: The closure structure 1064 * 1065 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect. 1066 */ 1067 static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty) 1068 { 1069 struct vmw_kms_sou_readback_blit *blit = dirty->cmd; 1070 1071 blit += dirty->num_hits; 1072 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; 1073 blit->body.srcScreenId = dirty->unit->unit; 1074 blit->body.destOrigin.x = dirty->fb_x; 1075 blit->body.destOrigin.y = dirty->fb_y; 1076 blit->body.srcRect.left = dirty->unit_x1; 1077 blit->body.srcRect.top = dirty->unit_y1; 1078 blit->body.srcRect.right = dirty->unit_x2; 1079 blit->body.srcRect.bottom = dirty->unit_y2; 1080 dirty->num_hits++; 1081 } 1082 1083 /** 1084 * vmw_kms_sou_readback - Perform a readback from the screen object system to 1085 * a dma-buffer backed framebuffer. 1086 * 1087 * @dev_priv: Pointer to the device private structure. 1088 * @file_priv: Pointer to a struct drm_file identifying the caller. 1089 * Must be set to NULL if @user_fence_rep is NULL. 1090 * @vfb: Pointer to the dma-buffer backed framebuffer. 1091 * @user_fence_rep: User-space provided structure for fence information. 1092 * Must be set to non-NULL if @file_priv is non-NULL. 1093 * @vclips: Array of clip rects. 1094 * @num_clips: Number of clip rects in @vclips. 1095 * 1096 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1097 * interrupted. 1098 */ 1099 int vmw_kms_sou_readback(struct vmw_private *dev_priv, 1100 struct drm_file *file_priv, 1101 struct vmw_framebuffer *vfb, 1102 struct drm_vmw_fence_rep __user *user_fence_rep, 1103 struct drm_vmw_rect *vclips, 1104 uint32_t num_clips) 1105 { 1106 struct vmw_dma_buffer *buf = 1107 container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer; 1108 struct vmw_kms_dirty dirty; 1109 int ret; 1110 1111 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, true, false); 1112 if (ret) 1113 return ret; 1114 1115 ret = do_dmabuf_define_gmrfb(dev_priv, vfb); 1116 if (unlikely(ret != 0)) 1117 goto out_revert; 1118 1119 dirty.fifo_commit = vmw_sou_readback_fifo_commit; 1120 dirty.clip = vmw_sou_readback_clip; 1121 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) * 1122 num_clips; 1123 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips, 1124 0, 0, num_clips, 1, &dirty); 1125 vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, 1126 user_fence_rep); 1127 1128 return ret; 1129 1130 out_revert: 1131 vmw_kms_helper_buffer_revert(buf); 1132 1133 return ret; 1134 } 1135