1 /****************************************************************************** 2 * 3 * COPYRIGHT © 2014-2015 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 "device_include/svga3d_surfacedefs.h" 30 #include <drm/drm_plane_helper.h> 31 #include <drm/drm_atomic.h> 32 #include <drm/drm_atomic_helper.h> 33 34 35 #define vmw_crtc_to_stdu(x) \ 36 container_of(x, struct vmw_screen_target_display_unit, base.crtc) 37 #define vmw_encoder_to_stdu(x) \ 38 container_of(x, struct vmw_screen_target_display_unit, base.encoder) 39 #define vmw_connector_to_stdu(x) \ 40 container_of(x, struct vmw_screen_target_display_unit, base.connector) 41 42 43 44 enum stdu_content_type { 45 SAME_AS_DISPLAY = 0, 46 SEPARATE_SURFACE, 47 SEPARATE_DMA 48 }; 49 50 /** 51 * struct vmw_stdu_dirty - closure structure for the update functions 52 * 53 * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). 54 * @transfer: Transfer direction for DMA command. 55 * @left: Left side of bounding box. 56 * @right: Right side of bounding box. 57 * @top: Top side of bounding box. 58 * @bottom: Bottom side of bounding box. 59 * @fb_left: Left side of the framebuffer/content bounding box 60 * @fb_top: Top of the framebuffer/content bounding box 61 * @buf: DMA buffer when DMA-ing between buffer and screen targets. 62 * @sid: Surface ID when copying between surface and screen targets. 63 */ 64 struct vmw_stdu_dirty { 65 struct vmw_kms_dirty base; 66 SVGA3dTransferType transfer; 67 s32 left, right, top, bottom; 68 s32 fb_left, fb_top; 69 u32 pitch; 70 union { 71 struct vmw_dma_buffer *buf; 72 u32 sid; 73 }; 74 }; 75 76 /* 77 * SVGA commands that are used by this code. Please see the device headers 78 * for explanation. 79 */ 80 struct vmw_stdu_update { 81 SVGA3dCmdHeader header; 82 SVGA3dCmdUpdateGBScreenTarget body; 83 }; 84 85 struct vmw_stdu_dma { 86 SVGA3dCmdHeader header; 87 SVGA3dCmdSurfaceDMA body; 88 }; 89 90 struct vmw_stdu_surface_copy { 91 SVGA3dCmdHeader header; 92 SVGA3dCmdSurfaceCopy body; 93 }; 94 95 96 /** 97 * struct vmw_screen_target_display_unit 98 * 99 * @base: VMW specific DU structure 100 * @display_srf: surface to be displayed. The dimension of this will always 101 * match the display mode. If the display mode matches 102 * content_vfbs dimensions, then this is a pointer into the 103 * corresponding field in content_vfbs. If not, then this 104 * is a separate buffer to which content_vfbs will blit to. 105 * @content_type: content_fb type 106 * @defined: true if the current display unit has been initialized 107 */ 108 struct vmw_screen_target_display_unit { 109 struct vmw_display_unit base; 110 const struct vmw_surface *display_srf; 111 enum stdu_content_type content_fb_type; 112 s32 display_width, display_height; 113 114 bool defined; 115 116 /* For CPU Blit */ 117 struct ttm_bo_kmap_obj host_map, guest_map; 118 unsigned int cpp; 119 }; 120 121 122 123 static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu); 124 125 126 127 /****************************************************************************** 128 * Screen Target Display Unit CRTC Functions 129 *****************************************************************************/ 130 131 132 /** 133 * vmw_stdu_crtc_destroy - cleans up the STDU 134 * 135 * @crtc: used to get a reference to the containing STDU 136 */ 137 static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc) 138 { 139 vmw_stdu_destroy(vmw_crtc_to_stdu(crtc)); 140 } 141 142 /** 143 * vmw_stdu_define_st - Defines a Screen Target 144 * 145 * @dev_priv: VMW DRM device 146 * @stdu: display unit to create a Screen Target for 147 * @mode: The mode to set. 148 * @crtc_x: X coordinate of screen target relative to framebuffer origin. 149 * @crtc_y: Y coordinate of screen target relative to framebuffer origin. 150 * 151 * Creates a STDU that we can used later. This function is called whenever the 152 * framebuffer size changes. 153 * 154 * RETURNs: 155 * 0 on success, error code on failure 156 */ 157 static int vmw_stdu_define_st(struct vmw_private *dev_priv, 158 struct vmw_screen_target_display_unit *stdu, 159 struct drm_display_mode *mode, 160 int crtc_x, int crtc_y) 161 { 162 struct { 163 SVGA3dCmdHeader header; 164 SVGA3dCmdDefineGBScreenTarget body; 165 } *cmd; 166 167 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 168 169 if (unlikely(cmd == NULL)) { 170 DRM_ERROR("Out of FIFO space defining Screen Target\n"); 171 return -ENOMEM; 172 } 173 174 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET; 175 cmd->header.size = sizeof(cmd->body); 176 177 cmd->body.stid = stdu->base.unit; 178 cmd->body.width = mode->hdisplay; 179 cmd->body.height = mode->vdisplay; 180 cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0; 181 cmd->body.dpi = 0; 182 if (stdu->base.is_implicit) { 183 cmd->body.xRoot = crtc_x; 184 cmd->body.yRoot = crtc_y; 185 } else { 186 cmd->body.xRoot = stdu->base.gui_x; 187 cmd->body.yRoot = stdu->base.gui_y; 188 } 189 stdu->base.set_gui_x = cmd->body.xRoot; 190 stdu->base.set_gui_y = cmd->body.yRoot; 191 192 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 193 194 stdu->defined = true; 195 stdu->display_width = mode->hdisplay; 196 stdu->display_height = mode->vdisplay; 197 198 return 0; 199 } 200 201 202 203 /** 204 * vmw_stdu_bind_st - Binds a surface to a Screen Target 205 * 206 * @dev_priv: VMW DRM device 207 * @stdu: display unit affected 208 * @res: Buffer to bind to the screen target. Set to NULL to blank screen. 209 * 210 * Binding a surface to a Screen Target the same as flipping 211 */ 212 static int vmw_stdu_bind_st(struct vmw_private *dev_priv, 213 struct vmw_screen_target_display_unit *stdu, 214 const struct vmw_resource *res) 215 { 216 SVGA3dSurfaceImageId image; 217 218 struct { 219 SVGA3dCmdHeader header; 220 SVGA3dCmdBindGBScreenTarget body; 221 } *cmd; 222 223 224 if (!stdu->defined) { 225 DRM_ERROR("No screen target defined\n"); 226 return -EINVAL; 227 } 228 229 /* Set up image using information in vfb */ 230 memset(&image, 0, sizeof(image)); 231 image.sid = res ? res->id : SVGA3D_INVALID_ID; 232 233 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 234 235 if (unlikely(cmd == NULL)) { 236 DRM_ERROR("Out of FIFO space binding a screen target\n"); 237 return -ENOMEM; 238 } 239 240 cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET; 241 cmd->header.size = sizeof(cmd->body); 242 243 cmd->body.stid = stdu->base.unit; 244 cmd->body.image = image; 245 246 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 247 248 return 0; 249 } 250 251 /** 252 * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a 253 * bounding box. 254 * 255 * @cmd: Pointer to command stream. 256 * @unit: Screen target unit. 257 * @left: Left side of bounding box. 258 * @right: Right side of bounding box. 259 * @top: Top side of bounding box. 260 * @bottom: Bottom side of bounding box. 261 */ 262 static void vmw_stdu_populate_update(void *cmd, int unit, 263 s32 left, s32 right, s32 top, s32 bottom) 264 { 265 struct vmw_stdu_update *update = cmd; 266 267 update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET; 268 update->header.size = sizeof(update->body); 269 270 update->body.stid = unit; 271 update->body.rect.x = left; 272 update->body.rect.y = top; 273 update->body.rect.w = right - left; 274 update->body.rect.h = bottom - top; 275 } 276 277 /** 278 * vmw_stdu_update_st - Full update of a Screen Target 279 * 280 * @dev_priv: VMW DRM device 281 * @stdu: display unit affected 282 * 283 * This function needs to be called whenever the content of a screen 284 * target has changed completely. Typically as a result of a backing 285 * surface change. 286 * 287 * RETURNS: 288 * 0 on success, error code on failure 289 */ 290 static int vmw_stdu_update_st(struct vmw_private *dev_priv, 291 struct vmw_screen_target_display_unit *stdu) 292 { 293 struct vmw_stdu_update *cmd; 294 295 if (!stdu->defined) { 296 DRM_ERROR("No screen target defined"); 297 return -EINVAL; 298 } 299 300 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 301 302 if (unlikely(cmd == NULL)) { 303 DRM_ERROR("Out of FIFO space updating a Screen Target\n"); 304 return -ENOMEM; 305 } 306 307 vmw_stdu_populate_update(cmd, stdu->base.unit, 308 0, stdu->display_width, 309 0, stdu->display_height); 310 311 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 312 313 return 0; 314 } 315 316 317 318 /** 319 * vmw_stdu_destroy_st - Destroy a Screen Target 320 * 321 * @dev_priv: VMW DRM device 322 * @stdu: display unit to destroy 323 */ 324 static int vmw_stdu_destroy_st(struct vmw_private *dev_priv, 325 struct vmw_screen_target_display_unit *stdu) 326 { 327 int ret; 328 329 struct { 330 SVGA3dCmdHeader header; 331 SVGA3dCmdDestroyGBScreenTarget body; 332 } *cmd; 333 334 335 /* Nothing to do if not successfully defined */ 336 if (unlikely(!stdu->defined)) 337 return 0; 338 339 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 340 341 if (unlikely(cmd == NULL)) { 342 DRM_ERROR("Out of FIFO space, screen target not destroyed\n"); 343 return -ENOMEM; 344 } 345 346 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET; 347 cmd->header.size = sizeof(cmd->body); 348 349 cmd->body.stid = stdu->base.unit; 350 351 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 352 353 /* Force sync */ 354 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); 355 if (unlikely(ret != 0)) 356 DRM_ERROR("Failed to sync with HW"); 357 358 stdu->defined = false; 359 stdu->display_width = 0; 360 stdu->display_height = 0; 361 362 return ret; 363 } 364 365 366 /** 367 * vmw_stdu_crtc_mode_set_nofb - Updates screen target size 368 * 369 * @crtc: CRTC associated with the screen target 370 * 371 * This function defines/destroys a screen target 372 * 373 */ 374 static void vmw_stdu_crtc_mode_set_nofb(struct drm_crtc *crtc) 375 { 376 struct vmw_private *dev_priv; 377 struct vmw_screen_target_display_unit *stdu; 378 int ret; 379 380 381 stdu = vmw_crtc_to_stdu(crtc); 382 dev_priv = vmw_priv(crtc->dev); 383 384 if (stdu->defined) { 385 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 386 if (ret) 387 DRM_ERROR("Failed to blank CRTC\n"); 388 389 (void) vmw_stdu_update_st(dev_priv, stdu); 390 391 ret = vmw_stdu_destroy_st(dev_priv, stdu); 392 if (ret) 393 DRM_ERROR("Failed to destroy Screen Target\n"); 394 395 stdu->content_fb_type = SAME_AS_DISPLAY; 396 } 397 398 if (!crtc->state->enable) 399 return; 400 401 vmw_svga_enable(dev_priv); 402 ret = vmw_stdu_define_st(dev_priv, stdu, &crtc->mode, crtc->x, crtc->y); 403 404 if (ret) 405 DRM_ERROR("Failed to define Screen Target of size %dx%d\n", 406 crtc->x, crtc->y); 407 } 408 409 410 static void vmw_stdu_crtc_helper_prepare(struct drm_crtc *crtc) 411 { 412 } 413 414 415 static void vmw_stdu_crtc_helper_commit(struct drm_crtc *crtc) 416 { 417 struct vmw_private *dev_priv; 418 struct vmw_screen_target_display_unit *stdu; 419 struct vmw_framebuffer *vfb; 420 struct drm_framebuffer *fb; 421 422 423 stdu = vmw_crtc_to_stdu(crtc); 424 dev_priv = vmw_priv(crtc->dev); 425 fb = crtc->primary->fb; 426 427 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 428 429 if (vfb) 430 vmw_kms_add_active(dev_priv, &stdu->base, vfb); 431 else 432 vmw_kms_del_active(dev_priv, &stdu->base); 433 } 434 435 static void vmw_stdu_crtc_helper_disable(struct drm_crtc *crtc) 436 { 437 struct vmw_private *dev_priv; 438 struct vmw_screen_target_display_unit *stdu; 439 int ret; 440 441 442 if (!crtc) { 443 DRM_ERROR("CRTC is NULL\n"); 444 return; 445 } 446 447 stdu = vmw_crtc_to_stdu(crtc); 448 dev_priv = vmw_priv(crtc->dev); 449 450 if (stdu->defined) { 451 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 452 if (ret) 453 DRM_ERROR("Failed to blank CRTC\n"); 454 455 (void) vmw_stdu_update_st(dev_priv, stdu); 456 457 ret = vmw_stdu_destroy_st(dev_priv, stdu); 458 if (ret) 459 DRM_ERROR("Failed to destroy Screen Target\n"); 460 461 stdu->content_fb_type = SAME_AS_DISPLAY; 462 } 463 } 464 465 /** 466 * vmw_stdu_crtc_page_flip - Binds a buffer to a screen target 467 * 468 * @crtc: CRTC to attach FB to 469 * @fb: FB to attach 470 * @event: Event to be posted. This event should've been alloced 471 * using k[mz]alloc, and should've been completely initialized. 472 * @page_flip_flags: Input flags. 473 * 474 * If the STDU uses the same display and content buffers, i.e. a true flip, 475 * this function will replace the existing display buffer with the new content 476 * buffer. 477 * 478 * If the STDU uses different display and content buffers, i.e. a blit, then 479 * only the content buffer will be updated. 480 * 481 * RETURNS: 482 * 0 on success, error code on failure 483 */ 484 static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, 485 struct drm_framebuffer *new_fb, 486 struct drm_pending_vblank_event *event, 487 uint32_t flags, 488 struct drm_modeset_acquire_ctx *ctx) 489 490 { 491 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 492 struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc); 493 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb); 494 struct drm_vmw_rect vclips; 495 int ret; 496 497 dev_priv = vmw_priv(crtc->dev); 498 stdu = vmw_crtc_to_stdu(crtc); 499 500 if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc)) 501 return -EINVAL; 502 503 /* 504 * We're always async, but the helper doesn't know how to set async 505 * so lie to the helper. Also, the helper expects someone 506 * to pick the event up from the crtc state, and if nobody does, 507 * it will free it. Since we handle the event in this function, 508 * don't hand it to the helper. 509 */ 510 flags &= ~DRM_MODE_PAGE_FLIP_ASYNC; 511 ret = drm_atomic_helper_page_flip(crtc, new_fb, NULL, flags, ctx); 512 if (ret) { 513 DRM_ERROR("Page flip error %d.\n", ret); 514 return ret; 515 } 516 517 if (stdu->base.is_implicit) 518 vmw_kms_update_implicit_fb(dev_priv, crtc); 519 520 /* 521 * Now that we've bound a new surface to the screen target, 522 * update the contents. 523 */ 524 vclips.x = crtc->x; 525 vclips.y = crtc->y; 526 vclips.w = crtc->mode.hdisplay; 527 vclips.h = crtc->mode.vdisplay; 528 529 if (vfb->dmabuf) 530 ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips, 531 1, 1, true, false); 532 else 533 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips, 534 NULL, 0, 0, 1, 1, NULL); 535 if (ret) { 536 DRM_ERROR("Page flip update error %d.\n", ret); 537 return ret; 538 } 539 540 if (event) { 541 struct vmw_fence_obj *fence = NULL; 542 struct drm_file *file_priv = event->base.file_priv; 543 544 vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); 545 if (!fence) 546 return -ENOMEM; 547 548 ret = vmw_event_fence_action_queue(file_priv, fence, 549 &event->base, 550 &event->event.tv_sec, 551 &event->event.tv_usec, 552 true); 553 vmw_fence_obj_unreference(&fence); 554 } else { 555 (void) vmw_fifo_flush(dev_priv, false); 556 } 557 558 return 0; 559 } 560 561 562 /** 563 * vmw_stdu_dmabuf_clip - Callback to encode a suface DMA command cliprect 564 * 565 * @dirty: The closure structure. 566 * 567 * Encodes a surface DMA command cliprect and updates the bounding box 568 * for the DMA. 569 */ 570 static void vmw_stdu_dmabuf_clip(struct vmw_kms_dirty *dirty) 571 { 572 struct vmw_stdu_dirty *ddirty = 573 container_of(dirty, struct vmw_stdu_dirty, base); 574 struct vmw_stdu_dma *cmd = dirty->cmd; 575 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 576 577 blit += dirty->num_hits; 578 blit->srcx = dirty->fb_x; 579 blit->srcy = dirty->fb_y; 580 blit->x = dirty->unit_x1; 581 blit->y = dirty->unit_y1; 582 blit->d = 1; 583 blit->w = dirty->unit_x2 - dirty->unit_x1; 584 blit->h = dirty->unit_y2 - dirty->unit_y1; 585 dirty->num_hits++; 586 587 if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) 588 return; 589 590 /* Destination bounding box */ 591 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); 592 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); 593 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); 594 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); 595 } 596 597 /** 598 * vmw_stdu_dmabuf_fifo_commit - Callback to fill in and submit a DMA command. 599 * 600 * @dirty: The closure structure. 601 * 602 * Fills in the missing fields in a DMA command, and optionally encodes 603 * a screen target update command, depending on transfer direction. 604 */ 605 static void vmw_stdu_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty) 606 { 607 struct vmw_stdu_dirty *ddirty = 608 container_of(dirty, struct vmw_stdu_dirty, base); 609 struct vmw_screen_target_display_unit *stdu = 610 container_of(dirty->unit, typeof(*stdu), base); 611 struct vmw_stdu_dma *cmd = dirty->cmd; 612 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 613 SVGA3dCmdSurfaceDMASuffix *suffix = 614 (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits]; 615 size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix); 616 617 if (!dirty->num_hits) { 618 vmw_fifo_commit(dirty->dev_priv, 0); 619 return; 620 } 621 622 cmd->header.id = SVGA_3D_CMD_SURFACE_DMA; 623 cmd->header.size = sizeof(cmd->body) + blit_size; 624 vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr); 625 cmd->body.guest.pitch = ddirty->pitch; 626 cmd->body.host.sid = stdu->display_srf->res.id; 627 cmd->body.host.face = 0; 628 cmd->body.host.mipmap = 0; 629 cmd->body.transfer = ddirty->transfer; 630 suffix->suffixSize = sizeof(*suffix); 631 suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE; 632 633 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 634 blit_size += sizeof(struct vmw_stdu_update); 635 636 vmw_stdu_populate_update(&suffix[1], stdu->base.unit, 637 ddirty->left, ddirty->right, 638 ddirty->top, ddirty->bottom); 639 } 640 641 vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size); 642 643 ddirty->left = ddirty->top = S32_MAX; 644 ddirty->right = ddirty->bottom = S32_MIN; 645 } 646 647 648 /** 649 * vmw_stdu_dmabuf_cpu_clip - Callback to encode a CPU blit 650 * 651 * @dirty: The closure structure. 652 * 653 * This function calculates the bounding box for all the incoming clips. 654 */ 655 static void vmw_stdu_dmabuf_cpu_clip(struct vmw_kms_dirty *dirty) 656 { 657 struct vmw_stdu_dirty *ddirty = 658 container_of(dirty, struct vmw_stdu_dirty, base); 659 660 dirty->num_hits = 1; 661 662 /* Calculate destination bounding box */ 663 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); 664 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); 665 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); 666 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); 667 668 /* 669 * Calculate content bounding box. We only need the top-left 670 * coordinate because width and height will be the same as the 671 * destination bounding box above 672 */ 673 ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x); 674 ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y); 675 } 676 677 678 /** 679 * vmw_stdu_dmabuf_cpu_commit - Callback to do a CPU blit from DMAbuf 680 * 681 * @dirty: The closure structure. 682 * 683 * For the special case when we cannot create a proxy surface in a 684 * 2D VM, we have to do a CPU blit ourselves. 685 */ 686 static void vmw_stdu_dmabuf_cpu_commit(struct vmw_kms_dirty *dirty) 687 { 688 struct vmw_stdu_dirty *ddirty = 689 container_of(dirty, struct vmw_stdu_dirty, base); 690 struct vmw_screen_target_display_unit *stdu = 691 container_of(dirty->unit, typeof(*stdu), base); 692 s32 width, height; 693 s32 src_pitch, dst_pitch; 694 u8 *src, *dst; 695 bool not_used; 696 697 698 if (!dirty->num_hits) 699 return; 700 701 width = ddirty->right - ddirty->left; 702 height = ddirty->bottom - ddirty->top; 703 704 if (width == 0 || height == 0) 705 return; 706 707 708 /* Assume we are blitting from Host (display_srf) to Guest (dmabuf) */ 709 src_pitch = stdu->display_srf->base_size.width * stdu->cpp; 710 src = ttm_kmap_obj_virtual(&stdu->host_map, ¬_used); 711 src += ddirty->top * src_pitch + ddirty->left * stdu->cpp; 712 713 dst_pitch = ddirty->pitch; 714 dst = ttm_kmap_obj_virtual(&stdu->guest_map, ¬_used); 715 dst += ddirty->fb_top * dst_pitch + ddirty->fb_left * stdu->cpp; 716 717 718 /* Figure out the real direction */ 719 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 720 u8 *tmp; 721 s32 tmp_pitch; 722 723 tmp = src; 724 tmp_pitch = src_pitch; 725 726 src = dst; 727 src_pitch = dst_pitch; 728 729 dst = tmp; 730 dst_pitch = tmp_pitch; 731 } 732 733 /* CPU Blit */ 734 while (height-- > 0) { 735 memcpy(dst, src, width * stdu->cpp); 736 dst += dst_pitch; 737 src += src_pitch; 738 } 739 740 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 741 struct vmw_private *dev_priv; 742 struct vmw_stdu_update *cmd; 743 struct drm_clip_rect region; 744 int ret; 745 746 /* We are updating the actual surface, not a proxy */ 747 region.x1 = ddirty->left; 748 region.x2 = ddirty->right; 749 region.y1 = ddirty->top; 750 region.y2 = ddirty->bottom; 751 ret = vmw_kms_update_proxy( 752 (struct vmw_resource *) &stdu->display_srf->res, 753 (const struct drm_clip_rect *) ®ion, 1, 1); 754 if (ret) 755 goto out_cleanup; 756 757 758 dev_priv = vmw_priv(stdu->base.crtc.dev); 759 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 760 761 if (!cmd) { 762 DRM_ERROR("Cannot reserve FIFO space to update STDU"); 763 goto out_cleanup; 764 } 765 766 vmw_stdu_populate_update(cmd, stdu->base.unit, 767 ddirty->left, ddirty->right, 768 ddirty->top, ddirty->bottom); 769 770 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 771 } 772 773 out_cleanup: 774 ddirty->left = ddirty->top = ddirty->fb_left = ddirty->fb_top = S32_MAX; 775 ddirty->right = ddirty->bottom = S32_MIN; 776 } 777 778 /** 779 * vmw_kms_stdu_dma - Perform a DMA transfer between a dma-buffer backed 780 * framebuffer and the screen target system. 781 * 782 * @dev_priv: Pointer to the device private structure. 783 * @file_priv: Pointer to a struct drm-file identifying the caller. May be 784 * set to NULL, but then @user_fence_rep must also be set to NULL. 785 * @vfb: Pointer to the dma-buffer backed framebuffer. 786 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 787 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 788 * be NULL. 789 * @num_clips: Number of clip rects in @clips or @vclips. 790 * @increment: Increment to use when looping over @clips or @vclips. 791 * @to_surface: Whether to DMA to the screen target system as opposed to 792 * from the screen target system. 793 * @interruptible: Whether to perform waits interruptible if possible. 794 * 795 * If DMA-ing till the screen target system, the function will also notify 796 * the screen target system that a bounding box of the cliprects has been 797 * updated. 798 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 799 * interrupted. 800 */ 801 int vmw_kms_stdu_dma(struct vmw_private *dev_priv, 802 struct drm_file *file_priv, 803 struct vmw_framebuffer *vfb, 804 struct drm_vmw_fence_rep __user *user_fence_rep, 805 struct drm_clip_rect *clips, 806 struct drm_vmw_rect *vclips, 807 uint32_t num_clips, 808 int increment, 809 bool to_surface, 810 bool interruptible) 811 { 812 struct vmw_dma_buffer *buf = 813 container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer; 814 struct vmw_stdu_dirty ddirty; 815 int ret; 816 817 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, 818 false); 819 if (ret) 820 return ret; 821 822 ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM : 823 SVGA3D_READ_HOST_VRAM; 824 ddirty.left = ddirty.top = S32_MAX; 825 ddirty.right = ddirty.bottom = S32_MIN; 826 ddirty.fb_left = ddirty.fb_top = S32_MAX; 827 ddirty.pitch = vfb->base.pitches[0]; 828 ddirty.buf = buf; 829 ddirty.base.fifo_commit = vmw_stdu_dmabuf_fifo_commit; 830 ddirty.base.clip = vmw_stdu_dmabuf_clip; 831 ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) + 832 num_clips * sizeof(SVGA3dCopyBox) + 833 sizeof(SVGA3dCmdSurfaceDMASuffix); 834 if (to_surface) 835 ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update); 836 837 /* 2D VMs cannot use SVGA_3D_CMD_SURFACE_DMA so do CPU blit instead */ 838 if (!(dev_priv->capabilities & SVGA_CAP_3D)) { 839 ddirty.base.fifo_commit = vmw_stdu_dmabuf_cpu_commit; 840 ddirty.base.clip = vmw_stdu_dmabuf_cpu_clip; 841 ddirty.base.fifo_reserve_size = 0; 842 } 843 844 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips, 845 0, 0, num_clips, increment, &ddirty.base); 846 vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, 847 user_fence_rep); 848 849 return ret; 850 } 851 852 /** 853 * vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect 854 * 855 * @dirty: The closure structure. 856 * 857 * Encodes a surface copy command cliprect and updates the bounding box 858 * for the copy. 859 */ 860 static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty) 861 { 862 struct vmw_stdu_dirty *sdirty = 863 container_of(dirty, struct vmw_stdu_dirty, base); 864 struct vmw_stdu_surface_copy *cmd = dirty->cmd; 865 struct vmw_screen_target_display_unit *stdu = 866 container_of(dirty->unit, typeof(*stdu), base); 867 868 if (sdirty->sid != stdu->display_srf->res.id) { 869 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 870 871 blit += dirty->num_hits; 872 blit->srcx = dirty->fb_x; 873 blit->srcy = dirty->fb_y; 874 blit->x = dirty->unit_x1; 875 blit->y = dirty->unit_y1; 876 blit->d = 1; 877 blit->w = dirty->unit_x2 - dirty->unit_x1; 878 blit->h = dirty->unit_y2 - dirty->unit_y1; 879 } 880 881 dirty->num_hits++; 882 883 /* Destination bounding box */ 884 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 885 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 886 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 887 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 888 } 889 890 /** 891 * vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface 892 * copy command. 893 * 894 * @dirty: The closure structure. 895 * 896 * Fills in the missing fields in a surface copy command, and encodes a screen 897 * target update command. 898 */ 899 static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty) 900 { 901 struct vmw_stdu_dirty *sdirty = 902 container_of(dirty, struct vmw_stdu_dirty, base); 903 struct vmw_screen_target_display_unit *stdu = 904 container_of(dirty->unit, typeof(*stdu), base); 905 struct vmw_stdu_surface_copy *cmd = dirty->cmd; 906 struct vmw_stdu_update *update; 907 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits; 908 size_t commit_size; 909 910 if (!dirty->num_hits) { 911 vmw_fifo_commit(dirty->dev_priv, 0); 912 return; 913 } 914 915 if (sdirty->sid != stdu->display_srf->res.id) { 916 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 917 918 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY; 919 cmd->header.size = sizeof(cmd->body) + blit_size; 920 cmd->body.src.sid = sdirty->sid; 921 cmd->body.dest.sid = stdu->display_srf->res.id; 922 update = (struct vmw_stdu_update *) &blit[dirty->num_hits]; 923 commit_size = sizeof(*cmd) + blit_size + sizeof(*update); 924 } else { 925 update = dirty->cmd; 926 commit_size = sizeof(*update); 927 } 928 929 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left, 930 sdirty->right, sdirty->top, sdirty->bottom); 931 932 vmw_fifo_commit(dirty->dev_priv, commit_size); 933 934 sdirty->left = sdirty->top = S32_MAX; 935 sdirty->right = sdirty->bottom = S32_MIN; 936 } 937 938 /** 939 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer 940 * 941 * @dev_priv: Pointer to the device private structure. 942 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 943 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 944 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 945 * be NULL. 946 * @srf: Pointer to surface to blit from. If NULL, the surface attached 947 * to @framebuffer will be used. 948 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 949 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 950 * @num_clips: Number of clip rects in @clips. 951 * @inc: Increment to use when looping over @clips. 952 * @out_fence: If non-NULL, will return a ref-counted pointer to a 953 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 954 * case the device has already synchronized. 955 * 956 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 957 * interrupted. 958 */ 959 int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv, 960 struct vmw_framebuffer *framebuffer, 961 struct drm_clip_rect *clips, 962 struct drm_vmw_rect *vclips, 963 struct vmw_resource *srf, 964 s32 dest_x, 965 s32 dest_y, 966 unsigned num_clips, int inc, 967 struct vmw_fence_obj **out_fence) 968 { 969 struct vmw_framebuffer_surface *vfbs = 970 container_of(framebuffer, typeof(*vfbs), base); 971 struct vmw_stdu_dirty sdirty; 972 int ret; 973 974 if (!srf) 975 srf = &vfbs->surface->res; 976 977 ret = vmw_kms_helper_resource_prepare(srf, true); 978 if (ret) 979 return ret; 980 981 if (vfbs->is_dmabuf_proxy) { 982 ret = vmw_kms_update_proxy(srf, clips, num_clips, inc); 983 if (ret) 984 goto out_finish; 985 } 986 987 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit; 988 sdirty.base.clip = vmw_kms_stdu_surface_clip; 989 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) + 990 sizeof(SVGA3dCopyBox) * num_clips + 991 sizeof(struct vmw_stdu_update); 992 sdirty.sid = srf->id; 993 sdirty.left = sdirty.top = S32_MAX; 994 sdirty.right = sdirty.bottom = S32_MIN; 995 996 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 997 dest_x, dest_y, num_clips, inc, 998 &sdirty.base); 999 out_finish: 1000 vmw_kms_helper_resource_finish(srf, out_fence); 1001 1002 return ret; 1003 } 1004 1005 1006 /* 1007 * Screen Target CRTC dispatch table 1008 */ 1009 static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = { 1010 .gamma_set = vmw_du_crtc_gamma_set, 1011 .destroy = vmw_stdu_crtc_destroy, 1012 .reset = vmw_du_crtc_reset, 1013 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 1014 .atomic_destroy_state = vmw_du_crtc_destroy_state, 1015 .set_config = vmw_kms_set_config, 1016 .page_flip = vmw_stdu_crtc_page_flip, 1017 }; 1018 1019 1020 1021 /****************************************************************************** 1022 * Screen Target Display Unit Encoder Functions 1023 *****************************************************************************/ 1024 1025 /** 1026 * vmw_stdu_encoder_destroy - cleans up the STDU 1027 * 1028 * @encoder: used the get the containing STDU 1029 * 1030 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically 1031 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case 1032 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't 1033 * get called. 1034 */ 1035 static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder) 1036 { 1037 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder)); 1038 } 1039 1040 static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = { 1041 .destroy = vmw_stdu_encoder_destroy, 1042 }; 1043 1044 1045 1046 /****************************************************************************** 1047 * Screen Target Display Unit Connector Functions 1048 *****************************************************************************/ 1049 1050 /** 1051 * vmw_stdu_connector_destroy - cleans up the STDU 1052 * 1053 * @connector: used to get the containing STDU 1054 * 1055 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically 1056 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case 1057 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't 1058 * get called. 1059 */ 1060 static void vmw_stdu_connector_destroy(struct drm_connector *connector) 1061 { 1062 vmw_stdu_destroy(vmw_connector_to_stdu(connector)); 1063 } 1064 1065 1066 1067 static const struct drm_connector_funcs vmw_stdu_connector_funcs = { 1068 .dpms = vmw_du_connector_dpms, 1069 .detect = vmw_du_connector_detect, 1070 .fill_modes = vmw_du_connector_fill_modes, 1071 .set_property = vmw_du_connector_set_property, 1072 .destroy = vmw_stdu_connector_destroy, 1073 .reset = vmw_du_connector_reset, 1074 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 1075 .atomic_destroy_state = vmw_du_connector_destroy_state, 1076 .atomic_set_property = vmw_du_connector_atomic_set_property, 1077 .atomic_get_property = vmw_du_connector_atomic_get_property, 1078 }; 1079 1080 1081 static const struct 1082 drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = { 1083 .best_encoder = drm_atomic_helper_best_encoder, 1084 }; 1085 1086 1087 1088 /****************************************************************************** 1089 * Screen Target Display Plane Functions 1090 *****************************************************************************/ 1091 1092 1093 1094 /** 1095 * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface 1096 * 1097 * @plane: display plane 1098 * @old_state: Contains the FB to clean up 1099 * 1100 * Unpins the display surface 1101 * 1102 * Returns 0 on success 1103 */ 1104 static void 1105 vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane, 1106 struct drm_plane_state *old_state) 1107 { 1108 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 1109 1110 if (vps->guest_map.virtual) 1111 ttm_bo_kunmap(&vps->guest_map); 1112 1113 if (vps->host_map.virtual) 1114 ttm_bo_kunmap(&vps->host_map); 1115 1116 if (vps->surf) 1117 WARN_ON(!vps->pinned); 1118 1119 vmw_du_plane_cleanup_fb(plane, old_state); 1120 1121 vps->content_fb_type = SAME_AS_DISPLAY; 1122 vps->cpp = 0; 1123 } 1124 1125 1126 1127 /** 1128 * vmw_stdu_primary_plane_prepare_fb - Readies the display surface 1129 * 1130 * @plane: display plane 1131 * @new_state: info on the new plane state, including the FB 1132 * 1133 * This function allocates a new display surface if the content is 1134 * backed by a DMA. The display surface is pinned here, and it'll 1135 * be unpinned in .cleanup_fb() 1136 * 1137 * Returns 0 on success 1138 */ 1139 static int 1140 vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane, 1141 struct drm_plane_state *new_state) 1142 { 1143 struct vmw_private *dev_priv = vmw_priv(plane->dev); 1144 struct drm_framebuffer *new_fb = new_state->fb; 1145 struct vmw_framebuffer *vfb; 1146 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 1147 enum stdu_content_type new_content_type; 1148 struct vmw_framebuffer_surface *new_vfbs; 1149 struct drm_crtc *crtc = new_state->crtc; 1150 uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h; 1151 int ret; 1152 1153 /* No FB to prepare */ 1154 if (!new_fb) { 1155 if (vps->surf) { 1156 WARN_ON(vps->pinned != 0); 1157 vmw_surface_unreference(&vps->surf); 1158 } 1159 1160 return 0; 1161 } 1162 1163 vfb = vmw_framebuffer_to_vfb(new_fb); 1164 new_vfbs = (vfb->dmabuf) ? NULL : vmw_framebuffer_to_vfbs(new_fb); 1165 1166 if (new_vfbs && new_vfbs->surface->base_size.width == hdisplay && 1167 new_vfbs->surface->base_size.height == vdisplay) 1168 new_content_type = SAME_AS_DISPLAY; 1169 else if (vfb->dmabuf) 1170 new_content_type = SEPARATE_DMA; 1171 else 1172 new_content_type = SEPARATE_SURFACE; 1173 1174 if (new_content_type != SAME_AS_DISPLAY) { 1175 struct vmw_surface content_srf; 1176 struct drm_vmw_size display_base_size = {0}; 1177 1178 display_base_size.width = hdisplay; 1179 display_base_size.height = vdisplay; 1180 display_base_size.depth = 1; 1181 1182 /* 1183 * If content buffer is a DMA buf, then we have to construct 1184 * surface info 1185 */ 1186 if (new_content_type == SEPARATE_DMA) { 1187 1188 switch (new_fb->format->cpp[0]*8) { 1189 case 32: 1190 content_srf.format = SVGA3D_X8R8G8B8; 1191 break; 1192 1193 case 16: 1194 content_srf.format = SVGA3D_R5G6B5; 1195 break; 1196 1197 case 8: 1198 content_srf.format = SVGA3D_P8; 1199 break; 1200 1201 default: 1202 DRM_ERROR("Invalid format\n"); 1203 return -EINVAL; 1204 } 1205 1206 content_srf.flags = 0; 1207 content_srf.mip_levels[0] = 1; 1208 content_srf.multisample_count = 0; 1209 } else { 1210 content_srf = *new_vfbs->surface; 1211 } 1212 1213 if (vps->surf) { 1214 struct drm_vmw_size cur_base_size = vps->surf->base_size; 1215 1216 if (cur_base_size.width != display_base_size.width || 1217 cur_base_size.height != display_base_size.height || 1218 vps->surf->format != content_srf.format) { 1219 WARN_ON(vps->pinned != 0); 1220 vmw_surface_unreference(&vps->surf); 1221 } 1222 1223 } 1224 1225 if (!vps->surf) { 1226 ret = vmw_surface_gb_priv_define 1227 (crtc->dev, 1228 /* Kernel visible only */ 1229 0, 1230 content_srf.flags, 1231 content_srf.format, 1232 true, /* a scanout buffer */ 1233 content_srf.mip_levels[0], 1234 content_srf.multisample_count, 1235 0, 1236 display_base_size, 1237 &vps->surf); 1238 if (ret != 0) { 1239 DRM_ERROR("Couldn't allocate STDU surface.\n"); 1240 return ret; 1241 } 1242 } 1243 } else { 1244 /* 1245 * prepare_fb and clean_fb should only take care of pinning 1246 * and unpinning. References are tracked by state objects. 1247 * The only time we add a reference in prepare_fb is if the 1248 * state object doesn't have a reference to begin with 1249 */ 1250 if (vps->surf) { 1251 WARN_ON(vps->pinned != 0); 1252 vmw_surface_unreference(&vps->surf); 1253 } 1254 1255 vps->surf = vmw_surface_reference(new_vfbs->surface); 1256 } 1257 1258 if (vps->surf) { 1259 1260 /* Pin new surface before flipping */ 1261 ret = vmw_resource_pin(&vps->surf->res, false); 1262 if (ret) 1263 goto out_srf_unref; 1264 1265 vps->pinned++; 1266 } 1267 1268 vps->content_fb_type = new_content_type; 1269 1270 /* 1271 * This should only happen if the DMA buf is too large to create a 1272 * proxy surface for. 1273 * If we are a 2D VM with a DMA buffer then we have to use CPU blit 1274 * so cache these mappings 1275 */ 1276 if (vps->content_fb_type == SEPARATE_DMA && 1277 !(dev_priv->capabilities & SVGA_CAP_3D)) { 1278 1279 struct vmw_framebuffer_dmabuf *new_vfbd; 1280 1281 new_vfbd = vmw_framebuffer_to_vfbd(new_fb); 1282 1283 ret = ttm_bo_reserve(&new_vfbd->buffer->base, false, false, 1284 NULL); 1285 if (ret) 1286 goto out_srf_unpin; 1287 1288 ret = ttm_bo_kmap(&new_vfbd->buffer->base, 0, 1289 new_vfbd->buffer->base.num_pages, 1290 &vps->guest_map); 1291 1292 ttm_bo_unreserve(&new_vfbd->buffer->base); 1293 1294 if (ret) { 1295 DRM_ERROR("Failed to map content buffer to CPU\n"); 1296 goto out_srf_unpin; 1297 } 1298 1299 ret = ttm_bo_kmap(&vps->surf->res.backup->base, 0, 1300 vps->surf->res.backup->base.num_pages, 1301 &vps->host_map); 1302 if (ret) { 1303 DRM_ERROR("Failed to map display buffer to CPU\n"); 1304 ttm_bo_kunmap(&vps->guest_map); 1305 goto out_srf_unpin; 1306 } 1307 1308 vps->cpp = new_fb->pitches[0] / new_fb->width; 1309 } 1310 1311 return 0; 1312 1313 out_srf_unpin: 1314 vmw_resource_unpin(&vps->surf->res); 1315 vps->pinned--; 1316 1317 out_srf_unref: 1318 vmw_surface_unreference(&vps->surf); 1319 return ret; 1320 } 1321 1322 1323 1324 /** 1325 * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane 1326 * 1327 * @plane: display plane 1328 * @old_state: Only used to get crtc info 1329 * 1330 * Formally update stdu->display_srf to the new plane, and bind the new 1331 * plane STDU. This function is called during the commit phase when 1332 * all the preparation have been done and all the configurations have 1333 * been checked. 1334 */ 1335 static void 1336 vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, 1337 struct drm_plane_state *old_state) 1338 { 1339 struct vmw_private *dev_priv; 1340 struct vmw_screen_target_display_unit *stdu; 1341 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state); 1342 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc; 1343 int ret; 1344 1345 stdu = vmw_crtc_to_stdu(crtc); 1346 dev_priv = vmw_priv(crtc->dev); 1347 1348 stdu->display_srf = vps->surf; 1349 stdu->content_fb_type = vps->content_fb_type; 1350 stdu->cpp = vps->cpp; 1351 memcpy(&stdu->guest_map, &vps->guest_map, sizeof(vps->guest_map)); 1352 memcpy(&stdu->host_map, &vps->host_map, sizeof(vps->host_map)); 1353 1354 if (!stdu->defined) 1355 return; 1356 1357 if (plane->state->fb) 1358 ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res); 1359 else 1360 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 1361 1362 /* 1363 * We cannot really fail this function, so if we do, then output an 1364 * error and quit 1365 */ 1366 if (ret) 1367 DRM_ERROR("Failed to bind surface to STDU.\n"); 1368 else 1369 crtc->primary->fb = plane->state->fb; 1370 1371 ret = vmw_stdu_update_st(dev_priv, stdu); 1372 1373 if (ret) 1374 DRM_ERROR("Failed to update STDU.\n"); 1375 } 1376 1377 1378 static const struct drm_plane_funcs vmw_stdu_plane_funcs = { 1379 .update_plane = drm_atomic_helper_update_plane, 1380 .disable_plane = drm_atomic_helper_disable_plane, 1381 .destroy = vmw_du_primary_plane_destroy, 1382 .reset = vmw_du_plane_reset, 1383 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 1384 .atomic_destroy_state = vmw_du_plane_destroy_state, 1385 }; 1386 1387 static const struct drm_plane_funcs vmw_stdu_cursor_funcs = { 1388 .update_plane = drm_atomic_helper_update_plane, 1389 .disable_plane = drm_atomic_helper_disable_plane, 1390 .destroy = vmw_du_cursor_plane_destroy, 1391 .reset = vmw_du_plane_reset, 1392 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 1393 .atomic_destroy_state = vmw_du_plane_destroy_state, 1394 }; 1395 1396 1397 /* 1398 * Atomic Helpers 1399 */ 1400 static const struct 1401 drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = { 1402 .atomic_check = vmw_du_cursor_plane_atomic_check, 1403 .atomic_update = vmw_du_cursor_plane_atomic_update, 1404 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 1405 .cleanup_fb = vmw_du_plane_cleanup_fb, 1406 }; 1407 1408 static const struct 1409 drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = { 1410 .atomic_check = vmw_du_primary_plane_atomic_check, 1411 .atomic_update = vmw_stdu_primary_plane_atomic_update, 1412 .prepare_fb = vmw_stdu_primary_plane_prepare_fb, 1413 .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb, 1414 }; 1415 1416 static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = { 1417 .prepare = vmw_stdu_crtc_helper_prepare, 1418 .commit = vmw_stdu_crtc_helper_commit, 1419 .disable = vmw_stdu_crtc_helper_disable, 1420 .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb, 1421 .atomic_check = vmw_du_crtc_atomic_check, 1422 .atomic_begin = vmw_du_crtc_atomic_begin, 1423 .atomic_flush = vmw_du_crtc_atomic_flush, 1424 }; 1425 1426 1427 /** 1428 * vmw_stdu_init - Sets up a Screen Target Display Unit 1429 * 1430 * @dev_priv: VMW DRM device 1431 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS 1432 * 1433 * This function is called once per CRTC, and allocates one Screen Target 1434 * display unit to represent that CRTC. Since the SVGA device does not separate 1435 * out encoder and connector, they are represented as part of the STDU as well. 1436 */ 1437 static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit) 1438 { 1439 struct vmw_screen_target_display_unit *stdu; 1440 struct drm_device *dev = dev_priv->dev; 1441 struct drm_connector *connector; 1442 struct drm_encoder *encoder; 1443 struct drm_plane *primary, *cursor; 1444 struct drm_crtc *crtc; 1445 int ret; 1446 1447 1448 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL); 1449 if (!stdu) 1450 return -ENOMEM; 1451 1452 stdu->base.unit = unit; 1453 crtc = &stdu->base.crtc; 1454 encoder = &stdu->base.encoder; 1455 connector = &stdu->base.connector; 1456 primary = &stdu->base.primary; 1457 cursor = &stdu->base.cursor; 1458 1459 stdu->base.pref_active = (unit == 0); 1460 stdu->base.pref_width = dev_priv->initial_width; 1461 stdu->base.pref_height = dev_priv->initial_height; 1462 1463 /* 1464 * Remove this after enabling atomic because property values can 1465 * only exist in a state object 1466 */ 1467 stdu->base.is_implicit = false; 1468 1469 /* Initialize primary plane */ 1470 vmw_du_plane_reset(primary); 1471 1472 ret = drm_universal_plane_init(dev, primary, 1473 0, &vmw_stdu_plane_funcs, 1474 vmw_primary_plane_formats, 1475 ARRAY_SIZE(vmw_primary_plane_formats), 1476 DRM_PLANE_TYPE_PRIMARY, NULL); 1477 if (ret) { 1478 DRM_ERROR("Failed to initialize primary plane"); 1479 goto err_free; 1480 } 1481 1482 drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs); 1483 1484 /* Initialize cursor plane */ 1485 vmw_du_plane_reset(cursor); 1486 1487 ret = drm_universal_plane_init(dev, cursor, 1488 0, &vmw_stdu_cursor_funcs, 1489 vmw_cursor_plane_formats, 1490 ARRAY_SIZE(vmw_cursor_plane_formats), 1491 DRM_PLANE_TYPE_CURSOR, NULL); 1492 if (ret) { 1493 DRM_ERROR("Failed to initialize cursor plane"); 1494 drm_plane_cleanup(&stdu->base.primary); 1495 goto err_free; 1496 } 1497 1498 drm_plane_helper_add(cursor, &vmw_stdu_cursor_plane_helper_funcs); 1499 1500 vmw_du_connector_reset(connector); 1501 1502 ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs, 1503 DRM_MODE_CONNECTOR_VIRTUAL); 1504 if (ret) { 1505 DRM_ERROR("Failed to initialize connector\n"); 1506 goto err_free; 1507 } 1508 1509 drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs); 1510 connector->status = vmw_du_connector_detect(connector, false); 1511 vmw_connector_state_to_vcs(connector->state)->is_implicit = false; 1512 1513 ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs, 1514 DRM_MODE_ENCODER_VIRTUAL, NULL); 1515 if (ret) { 1516 DRM_ERROR("Failed to initialize encoder\n"); 1517 goto err_free_connector; 1518 } 1519 1520 (void) drm_mode_connector_attach_encoder(connector, encoder); 1521 encoder->possible_crtcs = (1 << unit); 1522 encoder->possible_clones = 0; 1523 1524 ret = drm_connector_register(connector); 1525 if (ret) { 1526 DRM_ERROR("Failed to register connector\n"); 1527 goto err_free_encoder; 1528 } 1529 1530 vmw_du_crtc_reset(crtc); 1531 ret = drm_crtc_init_with_planes(dev, crtc, &stdu->base.primary, 1532 &stdu->base.cursor, 1533 &vmw_stdu_crtc_funcs, NULL); 1534 if (ret) { 1535 DRM_ERROR("Failed to initialize CRTC\n"); 1536 goto err_free_unregister; 1537 } 1538 1539 drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs); 1540 1541 drm_mode_crtc_set_gamma_size(crtc, 256); 1542 1543 drm_object_attach_property(&connector->base, 1544 dev_priv->hotplug_mode_update_property, 1); 1545 drm_object_attach_property(&connector->base, 1546 dev->mode_config.suggested_x_property, 0); 1547 drm_object_attach_property(&connector->base, 1548 dev->mode_config.suggested_y_property, 0); 1549 if (dev_priv->implicit_placement_property) 1550 drm_object_attach_property 1551 (&connector->base, 1552 dev_priv->implicit_placement_property, 1553 stdu->base.is_implicit); 1554 return 0; 1555 1556 err_free_unregister: 1557 drm_connector_unregister(connector); 1558 err_free_encoder: 1559 drm_encoder_cleanup(encoder); 1560 err_free_connector: 1561 drm_connector_cleanup(connector); 1562 err_free: 1563 kfree(stdu); 1564 return ret; 1565 } 1566 1567 1568 1569 /** 1570 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit 1571 * 1572 * @stdu: Screen Target Display Unit to be destroyed 1573 * 1574 * Clean up after vmw_stdu_init 1575 */ 1576 static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu) 1577 { 1578 vmw_du_cleanup(&stdu->base); 1579 kfree(stdu); 1580 } 1581 1582 1583 1584 /****************************************************************************** 1585 * Screen Target Display KMS Functions 1586 * 1587 * These functions are called by the common KMS code in vmwgfx_kms.c 1588 *****************************************************************************/ 1589 1590 /** 1591 * vmw_kms_stdu_init_display - Initializes a Screen Target based display 1592 * 1593 * @dev_priv: VMW DRM device 1594 * 1595 * This function initialize a Screen Target based display device. It checks 1596 * the capability bits to make sure the underlying hardware can support 1597 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display 1598 * Units, as supported by the display hardware. 1599 * 1600 * RETURNS: 1601 * 0 on success, error code otherwise 1602 */ 1603 int vmw_kms_stdu_init_display(struct vmw_private *dev_priv) 1604 { 1605 struct drm_device *dev = dev_priv->dev; 1606 int i, ret; 1607 1608 1609 /* Do nothing if Screen Target support is turned off */ 1610 if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE) 1611 return -ENOSYS; 1612 1613 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) 1614 return -ENOSYS; 1615 1616 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 1617 if (unlikely(ret != 0)) 1618 return ret; 1619 1620 dev_priv->active_display_unit = vmw_du_screen_target; 1621 1622 if (dev_priv->capabilities & SVGA_CAP_3D) { 1623 /* 1624 * For 3D VMs, display (scanout) buffer size is the smaller of 1625 * max texture and max STDU 1626 */ 1627 uint32_t max_width, max_height; 1628 1629 max_width = min(dev_priv->texture_max_width, 1630 dev_priv->stdu_max_width); 1631 max_height = min(dev_priv->texture_max_height, 1632 dev_priv->stdu_max_height); 1633 1634 dev->mode_config.max_width = max_width; 1635 dev->mode_config.max_height = max_height; 1636 } else { 1637 /* 1638 * Given various display aspect ratios, there's no way to 1639 * estimate these using prim_bb_mem. So just set these to 1640 * something arbitrarily large and we will reject any layout 1641 * that doesn't fit prim_bb_mem later 1642 */ 1643 dev->mode_config.max_width = 16384; 1644 dev->mode_config.max_height = 16384; 1645 } 1646 1647 vmw_kms_create_implicit_placement_property(dev_priv, false); 1648 1649 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) { 1650 ret = vmw_stdu_init(dev_priv, i); 1651 1652 if (unlikely(ret != 0)) { 1653 DRM_ERROR("Failed to initialize STDU %d", i); 1654 goto err_vblank_cleanup; 1655 } 1656 } 1657 1658 DRM_INFO("Screen Target Display device initialized\n"); 1659 1660 return 0; 1661 1662 err_vblank_cleanup: 1663 drm_vblank_cleanup(dev); 1664 return ret; 1665 } 1666 1667 1668 1669 /** 1670 * vmw_kms_stdu_close_display - Cleans up after vmw_kms_stdu_init_display 1671 * 1672 * @dev_priv: VMW DRM device 1673 * 1674 * Frees up any resources allocated by vmw_kms_stdu_init_display 1675 * 1676 * RETURNS: 1677 * 0 on success 1678 */ 1679 int vmw_kms_stdu_close_display(struct vmw_private *dev_priv) 1680 { 1681 struct drm_device *dev = dev_priv->dev; 1682 1683 drm_vblank_cleanup(dev); 1684 1685 return 0; 1686 } 1687