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; 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_atomic_enable(struct drm_crtc *crtc, 416 struct drm_crtc_state *old_state) 417 { 418 struct vmw_private *dev_priv; 419 struct vmw_screen_target_display_unit *stdu; 420 struct vmw_framebuffer *vfb; 421 struct drm_framebuffer *fb; 422 423 424 stdu = vmw_crtc_to_stdu(crtc); 425 dev_priv = vmw_priv(crtc->dev); 426 fb = crtc->primary->fb; 427 428 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 429 430 if (vfb) 431 vmw_kms_add_active(dev_priv, &stdu->base, vfb); 432 else 433 vmw_kms_del_active(dev_priv, &stdu->base); 434 } 435 436 static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc, 437 struct drm_crtc_state *old_state) 438 { 439 struct vmw_private *dev_priv; 440 struct vmw_screen_target_display_unit *stdu; 441 int ret; 442 443 444 if (!crtc) { 445 DRM_ERROR("CRTC is NULL\n"); 446 return; 447 } 448 449 stdu = vmw_crtc_to_stdu(crtc); 450 dev_priv = vmw_priv(crtc->dev); 451 452 if (stdu->defined) { 453 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 454 if (ret) 455 DRM_ERROR("Failed to blank CRTC\n"); 456 457 (void) vmw_stdu_update_st(dev_priv, stdu); 458 459 ret = vmw_stdu_destroy_st(dev_priv, stdu); 460 if (ret) 461 DRM_ERROR("Failed to destroy Screen Target\n"); 462 463 stdu->content_fb_type = SAME_AS_DISPLAY; 464 } 465 } 466 467 /** 468 * vmw_stdu_crtc_page_flip - Binds a buffer to a screen target 469 * 470 * @crtc: CRTC to attach FB to 471 * @fb: FB to attach 472 * @event: Event to be posted. This event should've been alloced 473 * using k[mz]alloc, and should've been completely initialized. 474 * @page_flip_flags: Input flags. 475 * 476 * If the STDU uses the same display and content buffers, i.e. a true flip, 477 * this function will replace the existing display buffer with the new content 478 * buffer. 479 * 480 * If the STDU uses different display and content buffers, i.e. a blit, then 481 * only the content buffer will be updated. 482 * 483 * RETURNS: 484 * 0 on success, error code on failure 485 */ 486 static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, 487 struct drm_framebuffer *new_fb, 488 struct drm_pending_vblank_event *event, 489 uint32_t flags, 490 struct drm_modeset_acquire_ctx *ctx) 491 492 { 493 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 494 struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc); 495 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb); 496 struct drm_vmw_rect vclips; 497 int ret; 498 499 dev_priv = vmw_priv(crtc->dev); 500 stdu = vmw_crtc_to_stdu(crtc); 501 502 if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc)) 503 return -EINVAL; 504 505 /* 506 * We're always async, but the helper doesn't know how to set async 507 * so lie to the helper. Also, the helper expects someone 508 * to pick the event up from the crtc state, and if nobody does, 509 * it will free it. Since we handle the event in this function, 510 * don't hand it to the helper. 511 */ 512 flags &= ~DRM_MODE_PAGE_FLIP_ASYNC; 513 ret = drm_atomic_helper_page_flip(crtc, new_fb, NULL, flags, ctx); 514 if (ret) { 515 DRM_ERROR("Page flip error %d.\n", ret); 516 return ret; 517 } 518 519 if (stdu->base.is_implicit) 520 vmw_kms_update_implicit_fb(dev_priv, crtc); 521 522 /* 523 * Now that we've bound a new surface to the screen target, 524 * update the contents. 525 */ 526 vclips.x = crtc->x; 527 vclips.y = crtc->y; 528 vclips.w = crtc->mode.hdisplay; 529 vclips.h = crtc->mode.vdisplay; 530 531 if (vfb->dmabuf) 532 ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips, 533 1, 1, true, false); 534 else 535 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips, 536 NULL, 0, 0, 1, 1, NULL); 537 if (ret) { 538 DRM_ERROR("Page flip update error %d.\n", ret); 539 return ret; 540 } 541 542 if (event) { 543 struct vmw_fence_obj *fence = NULL; 544 struct drm_file *file_priv = event->base.file_priv; 545 546 vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); 547 if (!fence) 548 return -ENOMEM; 549 550 ret = vmw_event_fence_action_queue(file_priv, fence, 551 &event->base, 552 &event->event.vbl.tv_sec, 553 &event->event.vbl.tv_usec, 554 true); 555 vmw_fence_obj_unreference(&fence); 556 } else { 557 (void) vmw_fifo_flush(dev_priv, false); 558 } 559 560 return 0; 561 } 562 563 564 /** 565 * vmw_stdu_dmabuf_clip - Callback to encode a suface DMA command cliprect 566 * 567 * @dirty: The closure structure. 568 * 569 * Encodes a surface DMA command cliprect and updates the bounding box 570 * for the DMA. 571 */ 572 static void vmw_stdu_dmabuf_clip(struct vmw_kms_dirty *dirty) 573 { 574 struct vmw_stdu_dirty *ddirty = 575 container_of(dirty, struct vmw_stdu_dirty, base); 576 struct vmw_stdu_dma *cmd = dirty->cmd; 577 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 578 579 blit += dirty->num_hits; 580 blit->srcx = dirty->fb_x; 581 blit->srcy = dirty->fb_y; 582 blit->x = dirty->unit_x1; 583 blit->y = dirty->unit_y1; 584 blit->d = 1; 585 blit->w = dirty->unit_x2 - dirty->unit_x1; 586 blit->h = dirty->unit_y2 - dirty->unit_y1; 587 dirty->num_hits++; 588 589 if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) 590 return; 591 592 /* Destination bounding box */ 593 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); 594 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); 595 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); 596 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); 597 } 598 599 /** 600 * vmw_stdu_dmabuf_fifo_commit - Callback to fill in and submit a DMA command. 601 * 602 * @dirty: The closure structure. 603 * 604 * Fills in the missing fields in a DMA command, and optionally encodes 605 * a screen target update command, depending on transfer direction. 606 */ 607 static void vmw_stdu_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty) 608 { 609 struct vmw_stdu_dirty *ddirty = 610 container_of(dirty, struct vmw_stdu_dirty, base); 611 struct vmw_screen_target_display_unit *stdu = 612 container_of(dirty->unit, typeof(*stdu), base); 613 struct vmw_stdu_dma *cmd = dirty->cmd; 614 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 615 SVGA3dCmdSurfaceDMASuffix *suffix = 616 (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits]; 617 size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix); 618 619 if (!dirty->num_hits) { 620 vmw_fifo_commit(dirty->dev_priv, 0); 621 return; 622 } 623 624 cmd->header.id = SVGA_3D_CMD_SURFACE_DMA; 625 cmd->header.size = sizeof(cmd->body) + blit_size; 626 vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr); 627 cmd->body.guest.pitch = ddirty->pitch; 628 cmd->body.host.sid = stdu->display_srf->res.id; 629 cmd->body.host.face = 0; 630 cmd->body.host.mipmap = 0; 631 cmd->body.transfer = ddirty->transfer; 632 suffix->suffixSize = sizeof(*suffix); 633 suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE; 634 635 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 636 blit_size += sizeof(struct vmw_stdu_update); 637 638 vmw_stdu_populate_update(&suffix[1], stdu->base.unit, 639 ddirty->left, ddirty->right, 640 ddirty->top, ddirty->bottom); 641 } 642 643 vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size); 644 645 ddirty->left = ddirty->top = S32_MAX; 646 ddirty->right = ddirty->bottom = S32_MIN; 647 } 648 649 650 /** 651 * vmw_stdu_dmabuf_cpu_clip - Callback to encode a CPU blit 652 * 653 * @dirty: The closure structure. 654 * 655 * This function calculates the bounding box for all the incoming clips. 656 */ 657 static void vmw_stdu_dmabuf_cpu_clip(struct vmw_kms_dirty *dirty) 658 { 659 struct vmw_stdu_dirty *ddirty = 660 container_of(dirty, struct vmw_stdu_dirty, base); 661 662 dirty->num_hits = 1; 663 664 /* Calculate destination bounding box */ 665 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); 666 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); 667 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); 668 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); 669 670 /* 671 * Calculate content bounding box. We only need the top-left 672 * coordinate because width and height will be the same as the 673 * destination bounding box above 674 */ 675 ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x); 676 ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y); 677 } 678 679 680 /** 681 * vmw_stdu_dmabuf_cpu_commit - Callback to do a CPU blit from DMAbuf 682 * 683 * @dirty: The closure structure. 684 * 685 * For the special case when we cannot create a proxy surface in a 686 * 2D VM, we have to do a CPU blit ourselves. 687 */ 688 static void vmw_stdu_dmabuf_cpu_commit(struct vmw_kms_dirty *dirty) 689 { 690 struct vmw_stdu_dirty *ddirty = 691 container_of(dirty, struct vmw_stdu_dirty, base); 692 struct vmw_screen_target_display_unit *stdu = 693 container_of(dirty->unit, typeof(*stdu), base); 694 s32 width, height; 695 s32 src_pitch, dst_pitch; 696 u8 *src, *dst; 697 bool not_used; 698 struct ttm_bo_kmap_obj guest_map; 699 int ret; 700 701 if (!dirty->num_hits) 702 return; 703 704 width = ddirty->right - ddirty->left; 705 height = ddirty->bottom - ddirty->top; 706 707 if (width == 0 || height == 0) 708 return; 709 710 ret = ttm_bo_kmap(&ddirty->buf->base, 0, ddirty->buf->base.num_pages, 711 &guest_map); 712 if (ret) { 713 DRM_ERROR("Failed mapping framebuffer for blit: %d\n", 714 ret); 715 goto out_cleanup; 716 } 717 718 /* Assume we are blitting from Host (display_srf) to Guest (dmabuf) */ 719 src_pitch = stdu->display_srf->base_size.width * stdu->cpp; 720 src = ttm_kmap_obj_virtual(&stdu->host_map, ¬_used); 721 src += ddirty->top * src_pitch + ddirty->left * stdu->cpp; 722 723 dst_pitch = ddirty->pitch; 724 dst = ttm_kmap_obj_virtual(&guest_map, ¬_used); 725 dst += ddirty->fb_top * dst_pitch + ddirty->fb_left * stdu->cpp; 726 727 728 /* Figure out the real direction */ 729 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 730 u8 *tmp; 731 s32 tmp_pitch; 732 733 tmp = src; 734 tmp_pitch = src_pitch; 735 736 src = dst; 737 src_pitch = dst_pitch; 738 739 dst = tmp; 740 dst_pitch = tmp_pitch; 741 } 742 743 /* CPU Blit */ 744 while (height-- > 0) { 745 memcpy(dst, src, width * stdu->cpp); 746 dst += dst_pitch; 747 src += src_pitch; 748 } 749 750 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 751 struct vmw_private *dev_priv; 752 struct vmw_stdu_update *cmd; 753 struct drm_clip_rect region; 754 int ret; 755 756 /* We are updating the actual surface, not a proxy */ 757 region.x1 = ddirty->left; 758 region.x2 = ddirty->right; 759 region.y1 = ddirty->top; 760 region.y2 = ddirty->bottom; 761 ret = vmw_kms_update_proxy( 762 (struct vmw_resource *) &stdu->display_srf->res, 763 (const struct drm_clip_rect *) ®ion, 1, 1); 764 if (ret) 765 goto out_cleanup; 766 767 768 dev_priv = vmw_priv(stdu->base.crtc.dev); 769 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 770 771 if (!cmd) { 772 DRM_ERROR("Cannot reserve FIFO space to update STDU"); 773 goto out_cleanup; 774 } 775 776 vmw_stdu_populate_update(cmd, stdu->base.unit, 777 ddirty->left, ddirty->right, 778 ddirty->top, ddirty->bottom); 779 780 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 781 } 782 783 ttm_bo_kunmap(&guest_map); 784 out_cleanup: 785 ddirty->left = ddirty->top = ddirty->fb_left = ddirty->fb_top = S32_MAX; 786 ddirty->right = ddirty->bottom = S32_MIN; 787 } 788 789 /** 790 * vmw_kms_stdu_dma - Perform a DMA transfer between a dma-buffer backed 791 * framebuffer and the screen target system. 792 * 793 * @dev_priv: Pointer to the device private structure. 794 * @file_priv: Pointer to a struct drm-file identifying the caller. May be 795 * set to NULL, but then @user_fence_rep must also be set to NULL. 796 * @vfb: Pointer to the dma-buffer backed framebuffer. 797 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 798 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 799 * be NULL. 800 * @num_clips: Number of clip rects in @clips or @vclips. 801 * @increment: Increment to use when looping over @clips or @vclips. 802 * @to_surface: Whether to DMA to the screen target system as opposed to 803 * from the screen target system. 804 * @interruptible: Whether to perform waits interruptible if possible. 805 * 806 * If DMA-ing till the screen target system, the function will also notify 807 * the screen target system that a bounding box of the cliprects has been 808 * updated. 809 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 810 * interrupted. 811 */ 812 int vmw_kms_stdu_dma(struct vmw_private *dev_priv, 813 struct drm_file *file_priv, 814 struct vmw_framebuffer *vfb, 815 struct drm_vmw_fence_rep __user *user_fence_rep, 816 struct drm_clip_rect *clips, 817 struct drm_vmw_rect *vclips, 818 uint32_t num_clips, 819 int increment, 820 bool to_surface, 821 bool interruptible) 822 { 823 struct vmw_dma_buffer *buf = 824 container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer; 825 struct vmw_stdu_dirty ddirty; 826 int ret; 827 828 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, 829 false); 830 if (ret) 831 return ret; 832 833 ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM : 834 SVGA3D_READ_HOST_VRAM; 835 ddirty.left = ddirty.top = S32_MAX; 836 ddirty.right = ddirty.bottom = S32_MIN; 837 ddirty.fb_left = ddirty.fb_top = S32_MAX; 838 ddirty.pitch = vfb->base.pitches[0]; 839 ddirty.buf = buf; 840 ddirty.base.fifo_commit = vmw_stdu_dmabuf_fifo_commit; 841 ddirty.base.clip = vmw_stdu_dmabuf_clip; 842 ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) + 843 num_clips * sizeof(SVGA3dCopyBox) + 844 sizeof(SVGA3dCmdSurfaceDMASuffix); 845 if (to_surface) 846 ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update); 847 848 /* 2D VMs cannot use SVGA_3D_CMD_SURFACE_DMA so do CPU blit instead */ 849 if (!(dev_priv->capabilities & SVGA_CAP_3D)) { 850 ddirty.base.fifo_commit = vmw_stdu_dmabuf_cpu_commit; 851 ddirty.base.clip = vmw_stdu_dmabuf_cpu_clip; 852 ddirty.base.fifo_reserve_size = 0; 853 } 854 855 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips, 856 0, 0, num_clips, increment, &ddirty.base); 857 vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, 858 user_fence_rep); 859 860 return ret; 861 } 862 863 /** 864 * vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect 865 * 866 * @dirty: The closure structure. 867 * 868 * Encodes a surface copy command cliprect and updates the bounding box 869 * for the copy. 870 */ 871 static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty) 872 { 873 struct vmw_stdu_dirty *sdirty = 874 container_of(dirty, struct vmw_stdu_dirty, base); 875 struct vmw_stdu_surface_copy *cmd = dirty->cmd; 876 struct vmw_screen_target_display_unit *stdu = 877 container_of(dirty->unit, typeof(*stdu), base); 878 879 if (sdirty->sid != stdu->display_srf->res.id) { 880 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 881 882 blit += dirty->num_hits; 883 blit->srcx = dirty->fb_x; 884 blit->srcy = dirty->fb_y; 885 blit->x = dirty->unit_x1; 886 blit->y = dirty->unit_y1; 887 blit->d = 1; 888 blit->w = dirty->unit_x2 - dirty->unit_x1; 889 blit->h = dirty->unit_y2 - dirty->unit_y1; 890 } 891 892 dirty->num_hits++; 893 894 /* Destination bounding box */ 895 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 896 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 897 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 898 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 899 } 900 901 /** 902 * vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface 903 * copy command. 904 * 905 * @dirty: The closure structure. 906 * 907 * Fills in the missing fields in a surface copy command, and encodes a screen 908 * target update command. 909 */ 910 static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty) 911 { 912 struct vmw_stdu_dirty *sdirty = 913 container_of(dirty, struct vmw_stdu_dirty, base); 914 struct vmw_screen_target_display_unit *stdu = 915 container_of(dirty->unit, typeof(*stdu), base); 916 struct vmw_stdu_surface_copy *cmd = dirty->cmd; 917 struct vmw_stdu_update *update; 918 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits; 919 size_t commit_size; 920 921 if (!dirty->num_hits) { 922 vmw_fifo_commit(dirty->dev_priv, 0); 923 return; 924 } 925 926 if (sdirty->sid != stdu->display_srf->res.id) { 927 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 928 929 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY; 930 cmd->header.size = sizeof(cmd->body) + blit_size; 931 cmd->body.src.sid = sdirty->sid; 932 cmd->body.dest.sid = stdu->display_srf->res.id; 933 update = (struct vmw_stdu_update *) &blit[dirty->num_hits]; 934 commit_size = sizeof(*cmd) + blit_size + sizeof(*update); 935 } else { 936 update = dirty->cmd; 937 commit_size = sizeof(*update); 938 } 939 940 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left, 941 sdirty->right, sdirty->top, sdirty->bottom); 942 943 vmw_fifo_commit(dirty->dev_priv, commit_size); 944 945 sdirty->left = sdirty->top = S32_MAX; 946 sdirty->right = sdirty->bottom = S32_MIN; 947 } 948 949 /** 950 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer 951 * 952 * @dev_priv: Pointer to the device private structure. 953 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 954 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 955 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 956 * be NULL. 957 * @srf: Pointer to surface to blit from. If NULL, the surface attached 958 * to @framebuffer will be used. 959 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 960 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 961 * @num_clips: Number of clip rects in @clips. 962 * @inc: Increment to use when looping over @clips. 963 * @out_fence: If non-NULL, will return a ref-counted pointer to a 964 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 965 * case the device has already synchronized. 966 * 967 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 968 * interrupted. 969 */ 970 int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv, 971 struct vmw_framebuffer *framebuffer, 972 struct drm_clip_rect *clips, 973 struct drm_vmw_rect *vclips, 974 struct vmw_resource *srf, 975 s32 dest_x, 976 s32 dest_y, 977 unsigned num_clips, int inc, 978 struct vmw_fence_obj **out_fence) 979 { 980 struct vmw_framebuffer_surface *vfbs = 981 container_of(framebuffer, typeof(*vfbs), base); 982 struct vmw_stdu_dirty sdirty; 983 int ret; 984 985 if (!srf) 986 srf = &vfbs->surface->res; 987 988 ret = vmw_kms_helper_resource_prepare(srf, true); 989 if (ret) 990 return ret; 991 992 if (vfbs->is_dmabuf_proxy) { 993 ret = vmw_kms_update_proxy(srf, clips, num_clips, inc); 994 if (ret) 995 goto out_finish; 996 } 997 998 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit; 999 sdirty.base.clip = vmw_kms_stdu_surface_clip; 1000 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) + 1001 sizeof(SVGA3dCopyBox) * num_clips + 1002 sizeof(struct vmw_stdu_update); 1003 sdirty.sid = srf->id; 1004 sdirty.left = sdirty.top = S32_MAX; 1005 sdirty.right = sdirty.bottom = S32_MIN; 1006 1007 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1008 dest_x, dest_y, num_clips, inc, 1009 &sdirty.base); 1010 out_finish: 1011 vmw_kms_helper_resource_finish(srf, out_fence); 1012 1013 return ret; 1014 } 1015 1016 1017 /* 1018 * Screen Target CRTC dispatch table 1019 */ 1020 static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = { 1021 .gamma_set = vmw_du_crtc_gamma_set, 1022 .destroy = vmw_stdu_crtc_destroy, 1023 .reset = vmw_du_crtc_reset, 1024 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 1025 .atomic_destroy_state = vmw_du_crtc_destroy_state, 1026 .set_config = vmw_kms_set_config, 1027 .page_flip = vmw_stdu_crtc_page_flip, 1028 }; 1029 1030 1031 1032 /****************************************************************************** 1033 * Screen Target Display Unit Encoder Functions 1034 *****************************************************************************/ 1035 1036 /** 1037 * vmw_stdu_encoder_destroy - cleans up the STDU 1038 * 1039 * @encoder: used the get the containing STDU 1040 * 1041 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically 1042 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case 1043 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't 1044 * get called. 1045 */ 1046 static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder) 1047 { 1048 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder)); 1049 } 1050 1051 static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = { 1052 .destroy = vmw_stdu_encoder_destroy, 1053 }; 1054 1055 1056 1057 /****************************************************************************** 1058 * Screen Target Display Unit Connector Functions 1059 *****************************************************************************/ 1060 1061 /** 1062 * vmw_stdu_connector_destroy - cleans up the STDU 1063 * 1064 * @connector: used to get the containing STDU 1065 * 1066 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically 1067 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case 1068 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't 1069 * get called. 1070 */ 1071 static void vmw_stdu_connector_destroy(struct drm_connector *connector) 1072 { 1073 vmw_stdu_destroy(vmw_connector_to_stdu(connector)); 1074 } 1075 1076 1077 1078 static const struct drm_connector_funcs vmw_stdu_connector_funcs = { 1079 .dpms = vmw_du_connector_dpms, 1080 .detect = vmw_du_connector_detect, 1081 .fill_modes = vmw_du_connector_fill_modes, 1082 .set_property = vmw_du_connector_set_property, 1083 .destroy = vmw_stdu_connector_destroy, 1084 .reset = vmw_du_connector_reset, 1085 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 1086 .atomic_destroy_state = vmw_du_connector_destroy_state, 1087 .atomic_set_property = vmw_du_connector_atomic_set_property, 1088 .atomic_get_property = vmw_du_connector_atomic_get_property, 1089 }; 1090 1091 1092 static const struct 1093 drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = { 1094 .best_encoder = drm_atomic_helper_best_encoder, 1095 }; 1096 1097 1098 1099 /****************************************************************************** 1100 * Screen Target Display Plane Functions 1101 *****************************************************************************/ 1102 1103 1104 1105 /** 1106 * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface 1107 * 1108 * @plane: display plane 1109 * @old_state: Contains the FB to clean up 1110 * 1111 * Unpins the display surface 1112 * 1113 * Returns 0 on success 1114 */ 1115 static void 1116 vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane, 1117 struct drm_plane_state *old_state) 1118 { 1119 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 1120 1121 if (vps->host_map.virtual) 1122 ttm_bo_kunmap(&vps->host_map); 1123 1124 if (vps->surf) 1125 WARN_ON(!vps->pinned); 1126 1127 vmw_du_plane_cleanup_fb(plane, old_state); 1128 1129 vps->content_fb_type = SAME_AS_DISPLAY; 1130 vps->cpp = 0; 1131 } 1132 1133 1134 1135 /** 1136 * vmw_stdu_primary_plane_prepare_fb - Readies the display surface 1137 * 1138 * @plane: display plane 1139 * @new_state: info on the new plane state, including the FB 1140 * 1141 * This function allocates a new display surface if the content is 1142 * backed by a DMA. The display surface is pinned here, and it'll 1143 * be unpinned in .cleanup_fb() 1144 * 1145 * Returns 0 on success 1146 */ 1147 static int 1148 vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane, 1149 struct drm_plane_state *new_state) 1150 { 1151 struct vmw_private *dev_priv = vmw_priv(plane->dev); 1152 struct drm_framebuffer *new_fb = new_state->fb; 1153 struct vmw_framebuffer *vfb; 1154 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 1155 enum stdu_content_type new_content_type; 1156 struct vmw_framebuffer_surface *new_vfbs; 1157 struct drm_crtc *crtc = new_state->crtc; 1158 uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h; 1159 int ret; 1160 1161 /* No FB to prepare */ 1162 if (!new_fb) { 1163 if (vps->surf) { 1164 WARN_ON(vps->pinned != 0); 1165 vmw_surface_unreference(&vps->surf); 1166 } 1167 1168 return 0; 1169 } 1170 1171 vfb = vmw_framebuffer_to_vfb(new_fb); 1172 new_vfbs = (vfb->dmabuf) ? NULL : vmw_framebuffer_to_vfbs(new_fb); 1173 1174 if (new_vfbs && new_vfbs->surface->base_size.width == hdisplay && 1175 new_vfbs->surface->base_size.height == vdisplay) 1176 new_content_type = SAME_AS_DISPLAY; 1177 else if (vfb->dmabuf) 1178 new_content_type = SEPARATE_DMA; 1179 else 1180 new_content_type = SEPARATE_SURFACE; 1181 1182 if (new_content_type != SAME_AS_DISPLAY) { 1183 struct vmw_surface content_srf; 1184 struct drm_vmw_size display_base_size = {0}; 1185 1186 display_base_size.width = hdisplay; 1187 display_base_size.height = vdisplay; 1188 display_base_size.depth = 1; 1189 1190 /* 1191 * If content buffer is a DMA buf, then we have to construct 1192 * surface info 1193 */ 1194 if (new_content_type == SEPARATE_DMA) { 1195 1196 switch (new_fb->format->cpp[0]*8) { 1197 case 32: 1198 content_srf.format = SVGA3D_X8R8G8B8; 1199 break; 1200 1201 case 16: 1202 content_srf.format = SVGA3D_R5G6B5; 1203 break; 1204 1205 case 8: 1206 content_srf.format = SVGA3D_P8; 1207 break; 1208 1209 default: 1210 DRM_ERROR("Invalid format\n"); 1211 return -EINVAL; 1212 } 1213 1214 content_srf.flags = 0; 1215 content_srf.mip_levels[0] = 1; 1216 content_srf.multisample_count = 0; 1217 } else { 1218 content_srf = *new_vfbs->surface; 1219 } 1220 1221 if (vps->surf) { 1222 struct drm_vmw_size cur_base_size = vps->surf->base_size; 1223 1224 if (cur_base_size.width != display_base_size.width || 1225 cur_base_size.height != display_base_size.height || 1226 vps->surf->format != content_srf.format) { 1227 WARN_ON(vps->pinned != 0); 1228 vmw_surface_unreference(&vps->surf); 1229 } 1230 1231 } 1232 1233 if (!vps->surf) { 1234 ret = vmw_surface_gb_priv_define 1235 (crtc->dev, 1236 /* Kernel visible only */ 1237 0, 1238 content_srf.flags, 1239 content_srf.format, 1240 true, /* a scanout buffer */ 1241 content_srf.mip_levels[0], 1242 content_srf.multisample_count, 1243 0, 1244 display_base_size, 1245 &vps->surf); 1246 if (ret != 0) { 1247 DRM_ERROR("Couldn't allocate STDU surface.\n"); 1248 return ret; 1249 } 1250 } 1251 } else { 1252 /* 1253 * prepare_fb and clean_fb should only take care of pinning 1254 * and unpinning. References are tracked by state objects. 1255 * The only time we add a reference in prepare_fb is if the 1256 * state object doesn't have a reference to begin with 1257 */ 1258 if (vps->surf) { 1259 WARN_ON(vps->pinned != 0); 1260 vmw_surface_unreference(&vps->surf); 1261 } 1262 1263 vps->surf = vmw_surface_reference(new_vfbs->surface); 1264 } 1265 1266 if (vps->surf) { 1267 1268 /* Pin new surface before flipping */ 1269 ret = vmw_resource_pin(&vps->surf->res, false); 1270 if (ret) 1271 goto out_srf_unref; 1272 1273 vps->pinned++; 1274 } 1275 1276 vps->content_fb_type = new_content_type; 1277 1278 /* 1279 * This should only happen if the DMA buf is too large to create a 1280 * proxy surface for. 1281 * If we are a 2D VM with a DMA buffer then we have to use CPU blit 1282 * so cache these mappings 1283 */ 1284 if (vps->content_fb_type == SEPARATE_DMA && 1285 !(dev_priv->capabilities & SVGA_CAP_3D)) { 1286 ret = ttm_bo_kmap(&vps->surf->res.backup->base, 0, 1287 vps->surf->res.backup->base.num_pages, 1288 &vps->host_map); 1289 if (ret) { 1290 DRM_ERROR("Failed to map display buffer to CPU\n"); 1291 goto out_srf_unpin; 1292 } 1293 1294 vps->cpp = new_fb->pitches[0] / new_fb->width; 1295 } 1296 1297 return 0; 1298 1299 out_srf_unpin: 1300 vmw_resource_unpin(&vps->surf->res); 1301 vps->pinned--; 1302 1303 out_srf_unref: 1304 vmw_surface_unreference(&vps->surf); 1305 return ret; 1306 } 1307 1308 1309 1310 /** 1311 * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane 1312 * 1313 * @plane: display plane 1314 * @old_state: Only used to get crtc info 1315 * 1316 * Formally update stdu->display_srf to the new plane, and bind the new 1317 * plane STDU. This function is called during the commit phase when 1318 * all the preparation have been done and all the configurations have 1319 * been checked. 1320 */ 1321 static void 1322 vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, 1323 struct drm_plane_state *old_state) 1324 { 1325 struct vmw_private *dev_priv; 1326 struct vmw_screen_target_display_unit *stdu; 1327 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state); 1328 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc; 1329 int ret; 1330 1331 stdu = vmw_crtc_to_stdu(crtc); 1332 dev_priv = vmw_priv(crtc->dev); 1333 1334 stdu->display_srf = vps->surf; 1335 stdu->content_fb_type = vps->content_fb_type; 1336 stdu->cpp = vps->cpp; 1337 memcpy(&stdu->host_map, &vps->host_map, sizeof(vps->host_map)); 1338 1339 if (!stdu->defined) 1340 return; 1341 1342 if (plane->state->fb) 1343 ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res); 1344 else 1345 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 1346 1347 /* 1348 * We cannot really fail this function, so if we do, then output an 1349 * error and quit 1350 */ 1351 if (ret) 1352 DRM_ERROR("Failed to bind surface to STDU.\n"); 1353 else 1354 crtc->primary->fb = plane->state->fb; 1355 1356 ret = vmw_stdu_update_st(dev_priv, stdu); 1357 1358 if (ret) 1359 DRM_ERROR("Failed to update STDU.\n"); 1360 } 1361 1362 1363 static const struct drm_plane_funcs vmw_stdu_plane_funcs = { 1364 .update_plane = drm_atomic_helper_update_plane, 1365 .disable_plane = drm_atomic_helper_disable_plane, 1366 .destroy = vmw_du_primary_plane_destroy, 1367 .reset = vmw_du_plane_reset, 1368 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 1369 .atomic_destroy_state = vmw_du_plane_destroy_state, 1370 }; 1371 1372 static const struct drm_plane_funcs vmw_stdu_cursor_funcs = { 1373 .update_plane = drm_atomic_helper_update_plane, 1374 .disable_plane = drm_atomic_helper_disable_plane, 1375 .destroy = vmw_du_cursor_plane_destroy, 1376 .reset = vmw_du_plane_reset, 1377 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 1378 .atomic_destroy_state = vmw_du_plane_destroy_state, 1379 }; 1380 1381 1382 /* 1383 * Atomic Helpers 1384 */ 1385 static const struct 1386 drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = { 1387 .atomic_check = vmw_du_cursor_plane_atomic_check, 1388 .atomic_update = vmw_du_cursor_plane_atomic_update, 1389 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 1390 .cleanup_fb = vmw_du_plane_cleanup_fb, 1391 }; 1392 1393 static const struct 1394 drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = { 1395 .atomic_check = vmw_du_primary_plane_atomic_check, 1396 .atomic_update = vmw_stdu_primary_plane_atomic_update, 1397 .prepare_fb = vmw_stdu_primary_plane_prepare_fb, 1398 .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb, 1399 }; 1400 1401 static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = { 1402 .prepare = vmw_stdu_crtc_helper_prepare, 1403 .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb, 1404 .atomic_check = vmw_du_crtc_atomic_check, 1405 .atomic_begin = vmw_du_crtc_atomic_begin, 1406 .atomic_flush = vmw_du_crtc_atomic_flush, 1407 .atomic_enable = vmw_stdu_crtc_atomic_enable, 1408 .atomic_disable = vmw_stdu_crtc_atomic_disable, 1409 }; 1410 1411 1412 /** 1413 * vmw_stdu_init - Sets up a Screen Target Display Unit 1414 * 1415 * @dev_priv: VMW DRM device 1416 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS 1417 * 1418 * This function is called once per CRTC, and allocates one Screen Target 1419 * display unit to represent that CRTC. Since the SVGA device does not separate 1420 * out encoder and connector, they are represented as part of the STDU as well. 1421 */ 1422 static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit) 1423 { 1424 struct vmw_screen_target_display_unit *stdu; 1425 struct drm_device *dev = dev_priv->dev; 1426 struct drm_connector *connector; 1427 struct drm_encoder *encoder; 1428 struct drm_plane *primary, *cursor; 1429 struct drm_crtc *crtc; 1430 int ret; 1431 1432 1433 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL); 1434 if (!stdu) 1435 return -ENOMEM; 1436 1437 stdu->base.unit = unit; 1438 crtc = &stdu->base.crtc; 1439 encoder = &stdu->base.encoder; 1440 connector = &stdu->base.connector; 1441 primary = &stdu->base.primary; 1442 cursor = &stdu->base.cursor; 1443 1444 stdu->base.pref_active = (unit == 0); 1445 stdu->base.pref_width = dev_priv->initial_width; 1446 stdu->base.pref_height = dev_priv->initial_height; 1447 1448 /* 1449 * Remove this after enabling atomic because property values can 1450 * only exist in a state object 1451 */ 1452 stdu->base.is_implicit = false; 1453 1454 /* Initialize primary plane */ 1455 vmw_du_plane_reset(primary); 1456 1457 ret = drm_universal_plane_init(dev, primary, 1458 0, &vmw_stdu_plane_funcs, 1459 vmw_primary_plane_formats, 1460 ARRAY_SIZE(vmw_primary_plane_formats), 1461 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 1462 if (ret) { 1463 DRM_ERROR("Failed to initialize primary plane"); 1464 goto err_free; 1465 } 1466 1467 drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs); 1468 1469 /* Initialize cursor plane */ 1470 vmw_du_plane_reset(cursor); 1471 1472 ret = drm_universal_plane_init(dev, cursor, 1473 0, &vmw_stdu_cursor_funcs, 1474 vmw_cursor_plane_formats, 1475 ARRAY_SIZE(vmw_cursor_plane_formats), 1476 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 1477 if (ret) { 1478 DRM_ERROR("Failed to initialize cursor plane"); 1479 drm_plane_cleanup(&stdu->base.primary); 1480 goto err_free; 1481 } 1482 1483 drm_plane_helper_add(cursor, &vmw_stdu_cursor_plane_helper_funcs); 1484 1485 vmw_du_connector_reset(connector); 1486 1487 ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs, 1488 DRM_MODE_CONNECTOR_VIRTUAL); 1489 if (ret) { 1490 DRM_ERROR("Failed to initialize connector\n"); 1491 goto err_free; 1492 } 1493 1494 drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs); 1495 connector->status = vmw_du_connector_detect(connector, false); 1496 vmw_connector_state_to_vcs(connector->state)->is_implicit = false; 1497 1498 ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs, 1499 DRM_MODE_ENCODER_VIRTUAL, NULL); 1500 if (ret) { 1501 DRM_ERROR("Failed to initialize encoder\n"); 1502 goto err_free_connector; 1503 } 1504 1505 (void) drm_mode_connector_attach_encoder(connector, encoder); 1506 encoder->possible_crtcs = (1 << unit); 1507 encoder->possible_clones = 0; 1508 1509 ret = drm_connector_register(connector); 1510 if (ret) { 1511 DRM_ERROR("Failed to register connector\n"); 1512 goto err_free_encoder; 1513 } 1514 1515 vmw_du_crtc_reset(crtc); 1516 ret = drm_crtc_init_with_planes(dev, crtc, &stdu->base.primary, 1517 &stdu->base.cursor, 1518 &vmw_stdu_crtc_funcs, NULL); 1519 if (ret) { 1520 DRM_ERROR("Failed to initialize CRTC\n"); 1521 goto err_free_unregister; 1522 } 1523 1524 drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs); 1525 1526 drm_mode_crtc_set_gamma_size(crtc, 256); 1527 1528 drm_object_attach_property(&connector->base, 1529 dev_priv->hotplug_mode_update_property, 1); 1530 drm_object_attach_property(&connector->base, 1531 dev->mode_config.suggested_x_property, 0); 1532 drm_object_attach_property(&connector->base, 1533 dev->mode_config.suggested_y_property, 0); 1534 if (dev_priv->implicit_placement_property) 1535 drm_object_attach_property 1536 (&connector->base, 1537 dev_priv->implicit_placement_property, 1538 stdu->base.is_implicit); 1539 return 0; 1540 1541 err_free_unregister: 1542 drm_connector_unregister(connector); 1543 err_free_encoder: 1544 drm_encoder_cleanup(encoder); 1545 err_free_connector: 1546 drm_connector_cleanup(connector); 1547 err_free: 1548 kfree(stdu); 1549 return ret; 1550 } 1551 1552 1553 1554 /** 1555 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit 1556 * 1557 * @stdu: Screen Target Display Unit to be destroyed 1558 * 1559 * Clean up after vmw_stdu_init 1560 */ 1561 static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu) 1562 { 1563 vmw_du_cleanup(&stdu->base); 1564 kfree(stdu); 1565 } 1566 1567 1568 1569 /****************************************************************************** 1570 * Screen Target Display KMS Functions 1571 * 1572 * These functions are called by the common KMS code in vmwgfx_kms.c 1573 *****************************************************************************/ 1574 1575 /** 1576 * vmw_kms_stdu_init_display - Initializes a Screen Target based display 1577 * 1578 * @dev_priv: VMW DRM device 1579 * 1580 * This function initialize a Screen Target based display device. It checks 1581 * the capability bits to make sure the underlying hardware can support 1582 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display 1583 * Units, as supported by the display hardware. 1584 * 1585 * RETURNS: 1586 * 0 on success, error code otherwise 1587 */ 1588 int vmw_kms_stdu_init_display(struct vmw_private *dev_priv) 1589 { 1590 struct drm_device *dev = dev_priv->dev; 1591 int i, ret; 1592 1593 1594 /* Do nothing if Screen Target support is turned off */ 1595 if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE) 1596 return -ENOSYS; 1597 1598 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) 1599 return -ENOSYS; 1600 1601 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 1602 if (unlikely(ret != 0)) 1603 return ret; 1604 1605 dev_priv->active_display_unit = vmw_du_screen_target; 1606 1607 if (dev_priv->capabilities & SVGA_CAP_3D) { 1608 /* 1609 * For 3D VMs, display (scanout) buffer size is the smaller of 1610 * max texture and max STDU 1611 */ 1612 uint32_t max_width, max_height; 1613 1614 max_width = min(dev_priv->texture_max_width, 1615 dev_priv->stdu_max_width); 1616 max_height = min(dev_priv->texture_max_height, 1617 dev_priv->stdu_max_height); 1618 1619 dev->mode_config.max_width = max_width; 1620 dev->mode_config.max_height = max_height; 1621 } else { 1622 /* 1623 * Given various display aspect ratios, there's no way to 1624 * estimate these using prim_bb_mem. So just set these to 1625 * something arbitrarily large and we will reject any layout 1626 * that doesn't fit prim_bb_mem later 1627 */ 1628 dev->mode_config.max_width = 8192; 1629 dev->mode_config.max_height = 8192; 1630 } 1631 1632 vmw_kms_create_implicit_placement_property(dev_priv, false); 1633 1634 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) { 1635 ret = vmw_stdu_init(dev_priv, i); 1636 1637 if (unlikely(ret != 0)) { 1638 DRM_ERROR("Failed to initialize STDU %d", i); 1639 return ret; 1640 } 1641 } 1642 1643 DRM_INFO("Screen Target Display device initialized\n"); 1644 1645 return 0; 1646 } 1647