1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /****************************************************************************** 3 * 4 * COPYRIGHT (C) 2014-2015 VMware, Inc., Palo Alto, CA., USA 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_BO 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: buffer object 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_buffer_object *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 unsigned int cpp; 118 }; 119 120 121 122 static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu); 123 124 125 126 /****************************************************************************** 127 * Screen Target Display Unit CRTC Functions 128 *****************************************************************************/ 129 130 131 /** 132 * vmw_stdu_crtc_destroy - cleans up the STDU 133 * 134 * @crtc: used to get a reference to the containing STDU 135 */ 136 static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc) 137 { 138 vmw_stdu_destroy(vmw_crtc_to_stdu(crtc)); 139 } 140 141 /** 142 * vmw_stdu_define_st - Defines a Screen Target 143 * 144 * @dev_priv: VMW DRM device 145 * @stdu: display unit to create a Screen Target for 146 * @mode: The mode to set. 147 * @crtc_x: X coordinate of screen target relative to framebuffer origin. 148 * @crtc_y: Y coordinate of screen target relative to framebuffer origin. 149 * 150 * Creates a STDU that we can used later. This function is called whenever the 151 * framebuffer size changes. 152 * 153 * RETURNs: 154 * 0 on success, error code on failure 155 */ 156 static int vmw_stdu_define_st(struct vmw_private *dev_priv, 157 struct vmw_screen_target_display_unit *stdu, 158 struct drm_display_mode *mode, 159 int crtc_x, int crtc_y) 160 { 161 struct { 162 SVGA3dCmdHeader header; 163 SVGA3dCmdDefineGBScreenTarget body; 164 } *cmd; 165 166 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 167 168 if (unlikely(cmd == NULL)) { 169 DRM_ERROR("Out of FIFO space defining Screen Target\n"); 170 return -ENOMEM; 171 } 172 173 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET; 174 cmd->header.size = sizeof(cmd->body); 175 176 cmd->body.stid = stdu->base.unit; 177 cmd->body.width = mode->hdisplay; 178 cmd->body.height = mode->vdisplay; 179 cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0; 180 cmd->body.dpi = 0; 181 cmd->body.xRoot = crtc_x; 182 cmd->body.yRoot = crtc_y; 183 184 stdu->base.set_gui_x = cmd->body.xRoot; 185 stdu->base.set_gui_y = cmd->body.yRoot; 186 187 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 188 189 stdu->defined = true; 190 stdu->display_width = mode->hdisplay; 191 stdu->display_height = mode->vdisplay; 192 193 return 0; 194 } 195 196 197 198 /** 199 * vmw_stdu_bind_st - Binds a surface to a Screen Target 200 * 201 * @dev_priv: VMW DRM device 202 * @stdu: display unit affected 203 * @res: Buffer to bind to the screen target. Set to NULL to blank screen. 204 * 205 * Binding a surface to a Screen Target the same as flipping 206 */ 207 static int vmw_stdu_bind_st(struct vmw_private *dev_priv, 208 struct vmw_screen_target_display_unit *stdu, 209 const struct vmw_resource *res) 210 { 211 SVGA3dSurfaceImageId image; 212 213 struct { 214 SVGA3dCmdHeader header; 215 SVGA3dCmdBindGBScreenTarget body; 216 } *cmd; 217 218 219 if (!stdu->defined) { 220 DRM_ERROR("No screen target defined\n"); 221 return -EINVAL; 222 } 223 224 /* Set up image using information in vfb */ 225 memset(&image, 0, sizeof(image)); 226 image.sid = res ? res->id : SVGA3D_INVALID_ID; 227 228 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 229 230 if (unlikely(cmd == NULL)) { 231 DRM_ERROR("Out of FIFO space binding a screen target\n"); 232 return -ENOMEM; 233 } 234 235 cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET; 236 cmd->header.size = sizeof(cmd->body); 237 238 cmd->body.stid = stdu->base.unit; 239 cmd->body.image = image; 240 241 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 242 243 return 0; 244 } 245 246 /** 247 * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a 248 * bounding box. 249 * 250 * @cmd: Pointer to command stream. 251 * @unit: Screen target unit. 252 * @left: Left side of bounding box. 253 * @right: Right side of bounding box. 254 * @top: Top side of bounding box. 255 * @bottom: Bottom side of bounding box. 256 */ 257 static void vmw_stdu_populate_update(void *cmd, int unit, 258 s32 left, s32 right, s32 top, s32 bottom) 259 { 260 struct vmw_stdu_update *update = cmd; 261 262 update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET; 263 update->header.size = sizeof(update->body); 264 265 update->body.stid = unit; 266 update->body.rect.x = left; 267 update->body.rect.y = top; 268 update->body.rect.w = right - left; 269 update->body.rect.h = bottom - top; 270 } 271 272 /** 273 * vmw_stdu_update_st - Full update of a Screen Target 274 * 275 * @dev_priv: VMW DRM device 276 * @stdu: display unit affected 277 * 278 * This function needs to be called whenever the content of a screen 279 * target has changed completely. Typically as a result of a backing 280 * surface change. 281 * 282 * RETURNS: 283 * 0 on success, error code on failure 284 */ 285 static int vmw_stdu_update_st(struct vmw_private *dev_priv, 286 struct vmw_screen_target_display_unit *stdu) 287 { 288 struct vmw_stdu_update *cmd; 289 290 if (!stdu->defined) { 291 DRM_ERROR("No screen target defined"); 292 return -EINVAL; 293 } 294 295 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 296 297 if (unlikely(cmd == NULL)) { 298 DRM_ERROR("Out of FIFO space updating a Screen Target\n"); 299 return -ENOMEM; 300 } 301 302 vmw_stdu_populate_update(cmd, stdu->base.unit, 303 0, stdu->display_width, 304 0, stdu->display_height); 305 306 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 307 308 return 0; 309 } 310 311 312 313 /** 314 * vmw_stdu_destroy_st - Destroy a Screen Target 315 * 316 * @dev_priv: VMW DRM device 317 * @stdu: display unit to destroy 318 */ 319 static int vmw_stdu_destroy_st(struct vmw_private *dev_priv, 320 struct vmw_screen_target_display_unit *stdu) 321 { 322 int ret; 323 324 struct { 325 SVGA3dCmdHeader header; 326 SVGA3dCmdDestroyGBScreenTarget body; 327 } *cmd; 328 329 330 /* Nothing to do if not successfully defined */ 331 if (unlikely(!stdu->defined)) 332 return 0; 333 334 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 335 336 if (unlikely(cmd == NULL)) { 337 DRM_ERROR("Out of FIFO space, screen target not destroyed\n"); 338 return -ENOMEM; 339 } 340 341 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET; 342 cmd->header.size = sizeof(cmd->body); 343 344 cmd->body.stid = stdu->base.unit; 345 346 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 347 348 /* Force sync */ 349 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); 350 if (unlikely(ret != 0)) 351 DRM_ERROR("Failed to sync with HW"); 352 353 stdu->defined = false; 354 stdu->display_width = 0; 355 stdu->display_height = 0; 356 357 return ret; 358 } 359 360 361 /** 362 * vmw_stdu_crtc_mode_set_nofb - Updates screen target size 363 * 364 * @crtc: CRTC associated with the screen target 365 * 366 * This function defines/destroys a screen target 367 * 368 */ 369 static void vmw_stdu_crtc_mode_set_nofb(struct drm_crtc *crtc) 370 { 371 struct vmw_private *dev_priv; 372 struct vmw_screen_target_display_unit *stdu; 373 struct drm_connector_state *conn_state; 374 struct vmw_connector_state *vmw_conn_state; 375 int x, y, ret; 376 377 stdu = vmw_crtc_to_stdu(crtc); 378 dev_priv = vmw_priv(crtc->dev); 379 conn_state = stdu->base.connector.state; 380 vmw_conn_state = vmw_connector_state_to_vcs(conn_state); 381 382 if (stdu->defined) { 383 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 384 if (ret) 385 DRM_ERROR("Failed to blank CRTC\n"); 386 387 (void) vmw_stdu_update_st(dev_priv, stdu); 388 389 ret = vmw_stdu_destroy_st(dev_priv, stdu); 390 if (ret) 391 DRM_ERROR("Failed to destroy Screen Target\n"); 392 393 stdu->content_fb_type = SAME_AS_DISPLAY; 394 } 395 396 if (!crtc->state->enable) 397 return; 398 399 if (stdu->base.is_implicit) { 400 x = crtc->x; 401 y = crtc->y; 402 } else { 403 x = vmw_conn_state->gui_x; 404 y = vmw_conn_state->gui_y; 405 } 406 407 vmw_svga_enable(dev_priv); 408 ret = vmw_stdu_define_st(dev_priv, stdu, &crtc->mode, x, y); 409 410 if (ret) 411 DRM_ERROR("Failed to define Screen Target of size %dx%d\n", 412 crtc->x, crtc->y); 413 } 414 415 416 static void vmw_stdu_crtc_helper_prepare(struct drm_crtc *crtc) 417 { 418 } 419 420 421 static void vmw_stdu_crtc_atomic_enable(struct drm_crtc *crtc, 422 struct drm_crtc_state *old_state) 423 { 424 struct drm_plane_state *plane_state = crtc->primary->state; 425 struct vmw_private *dev_priv; 426 struct vmw_screen_target_display_unit *stdu; 427 struct vmw_framebuffer *vfb; 428 struct drm_framebuffer *fb; 429 430 431 stdu = vmw_crtc_to_stdu(crtc); 432 dev_priv = vmw_priv(crtc->dev); 433 fb = plane_state->fb; 434 435 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 436 437 if (vfb) 438 vmw_kms_add_active(dev_priv, &stdu->base, vfb); 439 else 440 vmw_kms_del_active(dev_priv, &stdu->base); 441 } 442 443 static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc, 444 struct drm_crtc_state *old_state) 445 { 446 struct vmw_private *dev_priv; 447 struct vmw_screen_target_display_unit *stdu; 448 int ret; 449 450 451 if (!crtc) { 452 DRM_ERROR("CRTC is NULL\n"); 453 return; 454 } 455 456 stdu = vmw_crtc_to_stdu(crtc); 457 dev_priv = vmw_priv(crtc->dev); 458 459 if (stdu->defined) { 460 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 461 if (ret) 462 DRM_ERROR("Failed to blank CRTC\n"); 463 464 (void) vmw_stdu_update_st(dev_priv, stdu); 465 466 ret = vmw_stdu_destroy_st(dev_priv, stdu); 467 if (ret) 468 DRM_ERROR("Failed to destroy Screen Target\n"); 469 470 stdu->content_fb_type = SAME_AS_DISPLAY; 471 } 472 } 473 474 /** 475 * vmw_stdu_crtc_page_flip - Binds a buffer to a screen target 476 * 477 * @crtc: CRTC to attach FB to 478 * @fb: FB to attach 479 * @event: Event to be posted. This event should've been alloced 480 * using k[mz]alloc, and should've been completely initialized. 481 * @page_flip_flags: Input flags. 482 * 483 * If the STDU uses the same display and content buffers, i.e. a true flip, 484 * this function will replace the existing display buffer with the new content 485 * buffer. 486 * 487 * If the STDU uses different display and content buffers, i.e. a blit, then 488 * only the content buffer will be updated. 489 * 490 * RETURNS: 491 * 0 on success, error code on failure 492 */ 493 static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc, 494 struct drm_framebuffer *new_fb, 495 struct drm_pending_vblank_event *event, 496 uint32_t flags, 497 struct drm_modeset_acquire_ctx *ctx) 498 499 { 500 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 501 struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc); 502 int ret; 503 504 if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc)) 505 return -EINVAL; 506 507 ret = drm_atomic_helper_page_flip(crtc, new_fb, event, flags, ctx); 508 if (ret) { 509 DRM_ERROR("Page flip error %d.\n", ret); 510 return ret; 511 } 512 513 return 0; 514 } 515 516 517 /** 518 * vmw_stdu_bo_clip - Callback to encode a suface DMA command cliprect 519 * 520 * @dirty: The closure structure. 521 * 522 * Encodes a surface DMA command cliprect and updates the bounding box 523 * for the DMA. 524 */ 525 static void vmw_stdu_bo_clip(struct vmw_kms_dirty *dirty) 526 { 527 struct vmw_stdu_dirty *ddirty = 528 container_of(dirty, struct vmw_stdu_dirty, base); 529 struct vmw_stdu_dma *cmd = dirty->cmd; 530 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 531 532 blit += dirty->num_hits; 533 blit->srcx = dirty->fb_x; 534 blit->srcy = dirty->fb_y; 535 blit->x = dirty->unit_x1; 536 blit->y = dirty->unit_y1; 537 blit->d = 1; 538 blit->w = dirty->unit_x2 - dirty->unit_x1; 539 blit->h = dirty->unit_y2 - dirty->unit_y1; 540 dirty->num_hits++; 541 542 if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) 543 return; 544 545 /* Destination bounding box */ 546 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); 547 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); 548 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); 549 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); 550 } 551 552 /** 553 * vmw_stdu_bo_fifo_commit - Callback to fill in and submit a DMA command. 554 * 555 * @dirty: The closure structure. 556 * 557 * Fills in the missing fields in a DMA command, and optionally encodes 558 * a screen target update command, depending on transfer direction. 559 */ 560 static void vmw_stdu_bo_fifo_commit(struct vmw_kms_dirty *dirty) 561 { 562 struct vmw_stdu_dirty *ddirty = 563 container_of(dirty, struct vmw_stdu_dirty, base); 564 struct vmw_screen_target_display_unit *stdu = 565 container_of(dirty->unit, typeof(*stdu), base); 566 struct vmw_stdu_dma *cmd = dirty->cmd; 567 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 568 SVGA3dCmdSurfaceDMASuffix *suffix = 569 (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits]; 570 size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix); 571 572 if (!dirty->num_hits) { 573 vmw_fifo_commit(dirty->dev_priv, 0); 574 return; 575 } 576 577 cmd->header.id = SVGA_3D_CMD_SURFACE_DMA; 578 cmd->header.size = sizeof(cmd->body) + blit_size; 579 vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr); 580 cmd->body.guest.pitch = ddirty->pitch; 581 cmd->body.host.sid = stdu->display_srf->res.id; 582 cmd->body.host.face = 0; 583 cmd->body.host.mipmap = 0; 584 cmd->body.transfer = ddirty->transfer; 585 suffix->suffixSize = sizeof(*suffix); 586 suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE; 587 588 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) { 589 blit_size += sizeof(struct vmw_stdu_update); 590 591 vmw_stdu_populate_update(&suffix[1], stdu->base.unit, 592 ddirty->left, ddirty->right, 593 ddirty->top, ddirty->bottom); 594 } 595 596 vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size); 597 598 ddirty->left = ddirty->top = S32_MAX; 599 ddirty->right = ddirty->bottom = S32_MIN; 600 } 601 602 603 /** 604 * vmw_stdu_bo_cpu_clip - Callback to encode a CPU blit 605 * 606 * @dirty: The closure structure. 607 * 608 * This function calculates the bounding box for all the incoming clips. 609 */ 610 static void vmw_stdu_bo_cpu_clip(struct vmw_kms_dirty *dirty) 611 { 612 struct vmw_stdu_dirty *ddirty = 613 container_of(dirty, struct vmw_stdu_dirty, base); 614 615 dirty->num_hits = 1; 616 617 /* Calculate destination bounding box */ 618 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1); 619 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1); 620 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2); 621 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2); 622 623 /* 624 * Calculate content bounding box. We only need the top-left 625 * coordinate because width and height will be the same as the 626 * destination bounding box above 627 */ 628 ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x); 629 ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y); 630 } 631 632 633 /** 634 * vmw_stdu_bo_cpu_commit - Callback to do a CPU blit from buffer object 635 * 636 * @dirty: The closure structure. 637 * 638 * For the special case when we cannot create a proxy surface in a 639 * 2D VM, we have to do a CPU blit ourselves. 640 */ 641 static void vmw_stdu_bo_cpu_commit(struct vmw_kms_dirty *dirty) 642 { 643 struct vmw_stdu_dirty *ddirty = 644 container_of(dirty, struct vmw_stdu_dirty, base); 645 struct vmw_screen_target_display_unit *stdu = 646 container_of(dirty->unit, typeof(*stdu), base); 647 s32 width, height; 648 s32 src_pitch, dst_pitch; 649 struct ttm_buffer_object *src_bo, *dst_bo; 650 u32 src_offset, dst_offset; 651 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(stdu->cpp); 652 653 if (!dirty->num_hits) 654 return; 655 656 width = ddirty->right - ddirty->left; 657 height = ddirty->bottom - ddirty->top; 658 659 if (width == 0 || height == 0) 660 return; 661 662 /* Assume we are blitting from Guest (bo) to Host (display_srf) */ 663 dst_pitch = stdu->display_srf->base_size.width * stdu->cpp; 664 dst_bo = &stdu->display_srf->res.backup->base; 665 dst_offset = ddirty->top * dst_pitch + ddirty->left * stdu->cpp; 666 667 src_pitch = ddirty->pitch; 668 src_bo = &ddirty->buf->base; 669 src_offset = ddirty->fb_top * src_pitch + ddirty->fb_left * stdu->cpp; 670 671 /* Swap src and dst if the assumption was wrong. */ 672 if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM) { 673 swap(dst_pitch, src_pitch); 674 swap(dst_bo, src_bo); 675 swap(src_offset, dst_offset); 676 } 677 678 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch, 679 src_bo, src_offset, src_pitch, 680 width * stdu->cpp, height, &diff); 681 682 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM && 683 drm_rect_visible(&diff.rect)) { 684 struct vmw_private *dev_priv; 685 struct vmw_stdu_update *cmd; 686 struct drm_clip_rect region; 687 int ret; 688 689 /* We are updating the actual surface, not a proxy */ 690 region.x1 = diff.rect.x1; 691 region.x2 = diff.rect.x2; 692 region.y1 = diff.rect.y1; 693 region.y2 = diff.rect.y2; 694 ret = vmw_kms_update_proxy( 695 (struct vmw_resource *) &stdu->display_srf->res, 696 (const struct drm_clip_rect *) ®ion, 1, 1); 697 if (ret) 698 goto out_cleanup; 699 700 701 dev_priv = vmw_priv(stdu->base.crtc.dev); 702 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); 703 704 if (!cmd) { 705 DRM_ERROR("Cannot reserve FIFO space to update STDU"); 706 goto out_cleanup; 707 } 708 709 vmw_stdu_populate_update(cmd, stdu->base.unit, 710 region.x1, region.x2, 711 region.y1, region.y2); 712 713 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 714 } 715 716 out_cleanup: 717 ddirty->left = ddirty->top = ddirty->fb_left = ddirty->fb_top = S32_MAX; 718 ddirty->right = ddirty->bottom = S32_MIN; 719 } 720 721 /** 722 * vmw_kms_stdu_dma - Perform a DMA transfer between a buffer-object backed 723 * framebuffer and the screen target system. 724 * 725 * @dev_priv: Pointer to the device private structure. 726 * @file_priv: Pointer to a struct drm-file identifying the caller. May be 727 * set to NULL, but then @user_fence_rep must also be set to NULL. 728 * @vfb: Pointer to the buffer-object backed framebuffer. 729 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 730 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 731 * be NULL. 732 * @num_clips: Number of clip rects in @clips or @vclips. 733 * @increment: Increment to use when looping over @clips or @vclips. 734 * @to_surface: Whether to DMA to the screen target system as opposed to 735 * from the screen target system. 736 * @interruptible: Whether to perform waits interruptible if possible. 737 * @crtc: If crtc is passed, perform stdu dma on that crtc only. 738 * 739 * If DMA-ing till the screen target system, the function will also notify 740 * the screen target system that a bounding box of the cliprects has been 741 * updated. 742 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 743 * interrupted. 744 */ 745 int vmw_kms_stdu_dma(struct vmw_private *dev_priv, 746 struct drm_file *file_priv, 747 struct vmw_framebuffer *vfb, 748 struct drm_vmw_fence_rep __user *user_fence_rep, 749 struct drm_clip_rect *clips, 750 struct drm_vmw_rect *vclips, 751 uint32_t num_clips, 752 int increment, 753 bool to_surface, 754 bool interruptible, 755 struct drm_crtc *crtc) 756 { 757 struct vmw_buffer_object *buf = 758 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer; 759 struct vmw_stdu_dirty ddirty; 760 int ret; 761 bool cpu_blit = !(dev_priv->capabilities & SVGA_CAP_3D); 762 763 /* 764 * VMs without 3D support don't have the surface DMA command and 765 * we'll be using a CPU blit, and the framebuffer should be moved out 766 * of VRAM. 767 */ 768 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible, 769 false, cpu_blit); 770 if (ret) 771 return ret; 772 773 ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM : 774 SVGA3D_READ_HOST_VRAM; 775 ddirty.left = ddirty.top = S32_MAX; 776 ddirty.right = ddirty.bottom = S32_MIN; 777 ddirty.fb_left = ddirty.fb_top = S32_MAX; 778 ddirty.pitch = vfb->base.pitches[0]; 779 ddirty.buf = buf; 780 ddirty.base.fifo_commit = vmw_stdu_bo_fifo_commit; 781 ddirty.base.clip = vmw_stdu_bo_clip; 782 ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) + 783 num_clips * sizeof(SVGA3dCopyBox) + 784 sizeof(SVGA3dCmdSurfaceDMASuffix); 785 if (to_surface) 786 ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update); 787 788 789 if (cpu_blit) { 790 ddirty.base.fifo_commit = vmw_stdu_bo_cpu_commit; 791 ddirty.base.clip = vmw_stdu_bo_cpu_clip; 792 ddirty.base.fifo_reserve_size = 0; 793 } 794 795 ddirty.base.crtc = crtc; 796 797 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips, 798 0, 0, num_clips, increment, &ddirty.base); 799 vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL, 800 user_fence_rep); 801 802 return ret; 803 } 804 805 /** 806 * vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect 807 * 808 * @dirty: The closure structure. 809 * 810 * Encodes a surface copy command cliprect and updates the bounding box 811 * for the copy. 812 */ 813 static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty) 814 { 815 struct vmw_stdu_dirty *sdirty = 816 container_of(dirty, struct vmw_stdu_dirty, base); 817 struct vmw_stdu_surface_copy *cmd = dirty->cmd; 818 struct vmw_screen_target_display_unit *stdu = 819 container_of(dirty->unit, typeof(*stdu), base); 820 821 if (sdirty->sid != stdu->display_srf->res.id) { 822 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 823 824 blit += dirty->num_hits; 825 blit->srcx = dirty->fb_x; 826 blit->srcy = dirty->fb_y; 827 blit->x = dirty->unit_x1; 828 blit->y = dirty->unit_y1; 829 blit->d = 1; 830 blit->w = dirty->unit_x2 - dirty->unit_x1; 831 blit->h = dirty->unit_y2 - dirty->unit_y1; 832 } 833 834 dirty->num_hits++; 835 836 /* Destination bounding box */ 837 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 838 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 839 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 840 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 841 } 842 843 /** 844 * vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface 845 * copy command. 846 * 847 * @dirty: The closure structure. 848 * 849 * Fills in the missing fields in a surface copy command, and encodes a screen 850 * target update command. 851 */ 852 static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty) 853 { 854 struct vmw_stdu_dirty *sdirty = 855 container_of(dirty, struct vmw_stdu_dirty, base); 856 struct vmw_screen_target_display_unit *stdu = 857 container_of(dirty->unit, typeof(*stdu), base); 858 struct vmw_stdu_surface_copy *cmd = dirty->cmd; 859 struct vmw_stdu_update *update; 860 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits; 861 size_t commit_size; 862 863 if (!dirty->num_hits) { 864 vmw_fifo_commit(dirty->dev_priv, 0); 865 return; 866 } 867 868 if (sdirty->sid != stdu->display_srf->res.id) { 869 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1]; 870 871 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY; 872 cmd->header.size = sizeof(cmd->body) + blit_size; 873 cmd->body.src.sid = sdirty->sid; 874 cmd->body.dest.sid = stdu->display_srf->res.id; 875 update = (struct vmw_stdu_update *) &blit[dirty->num_hits]; 876 commit_size = sizeof(*cmd) + blit_size + sizeof(*update); 877 } else { 878 update = dirty->cmd; 879 commit_size = sizeof(*update); 880 } 881 882 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left, 883 sdirty->right, sdirty->top, sdirty->bottom); 884 885 vmw_fifo_commit(dirty->dev_priv, commit_size); 886 887 sdirty->left = sdirty->top = S32_MAX; 888 sdirty->right = sdirty->bottom = S32_MIN; 889 } 890 891 /** 892 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer 893 * 894 * @dev_priv: Pointer to the device private structure. 895 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 896 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 897 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 898 * be NULL. 899 * @srf: Pointer to surface to blit from. If NULL, the surface attached 900 * to @framebuffer will be used. 901 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 902 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 903 * @num_clips: Number of clip rects in @clips. 904 * @inc: Increment to use when looping over @clips. 905 * @out_fence: If non-NULL, will return a ref-counted pointer to a 906 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 907 * case the device has already synchronized. 908 * @crtc: If crtc is passed, perform surface dirty on that crtc only. 909 * 910 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 911 * interrupted. 912 */ 913 int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv, 914 struct vmw_framebuffer *framebuffer, 915 struct drm_clip_rect *clips, 916 struct drm_vmw_rect *vclips, 917 struct vmw_resource *srf, 918 s32 dest_x, 919 s32 dest_y, 920 unsigned num_clips, int inc, 921 struct vmw_fence_obj **out_fence, 922 struct drm_crtc *crtc) 923 { 924 struct vmw_framebuffer_surface *vfbs = 925 container_of(framebuffer, typeof(*vfbs), base); 926 struct vmw_stdu_dirty sdirty; 927 struct vmw_validation_ctx ctx; 928 int ret; 929 930 if (!srf) 931 srf = &vfbs->surface->res; 932 933 ret = vmw_kms_helper_resource_prepare(srf, true, &ctx); 934 if (ret) 935 return ret; 936 937 if (vfbs->is_bo_proxy) { 938 ret = vmw_kms_update_proxy(srf, clips, num_clips, inc); 939 if (ret) 940 goto out_finish; 941 } 942 943 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit; 944 sdirty.base.clip = vmw_kms_stdu_surface_clip; 945 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) + 946 sizeof(SVGA3dCopyBox) * num_clips + 947 sizeof(struct vmw_stdu_update); 948 sdirty.base.crtc = crtc; 949 sdirty.sid = srf->id; 950 sdirty.left = sdirty.top = S32_MAX; 951 sdirty.right = sdirty.bottom = S32_MIN; 952 953 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 954 dest_x, dest_y, num_clips, inc, 955 &sdirty.base); 956 out_finish: 957 vmw_kms_helper_resource_finish(&ctx, out_fence); 958 959 return ret; 960 } 961 962 963 /* 964 * Screen Target CRTC dispatch table 965 */ 966 static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = { 967 .gamma_set = vmw_du_crtc_gamma_set, 968 .destroy = vmw_stdu_crtc_destroy, 969 .reset = vmw_du_crtc_reset, 970 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 971 .atomic_destroy_state = vmw_du_crtc_destroy_state, 972 .set_config = vmw_kms_set_config, 973 .page_flip = vmw_stdu_crtc_page_flip, 974 }; 975 976 977 978 /****************************************************************************** 979 * Screen Target Display Unit Encoder Functions 980 *****************************************************************************/ 981 982 /** 983 * vmw_stdu_encoder_destroy - cleans up the STDU 984 * 985 * @encoder: used the get the containing STDU 986 * 987 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically 988 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case 989 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't 990 * get called. 991 */ 992 static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder) 993 { 994 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder)); 995 } 996 997 static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = { 998 .destroy = vmw_stdu_encoder_destroy, 999 }; 1000 1001 1002 1003 /****************************************************************************** 1004 * Screen Target Display Unit Connector Functions 1005 *****************************************************************************/ 1006 1007 /** 1008 * vmw_stdu_connector_destroy - cleans up the STDU 1009 * 1010 * @connector: used to get the containing STDU 1011 * 1012 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically 1013 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case 1014 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't 1015 * get called. 1016 */ 1017 static void vmw_stdu_connector_destroy(struct drm_connector *connector) 1018 { 1019 vmw_stdu_destroy(vmw_connector_to_stdu(connector)); 1020 } 1021 1022 1023 1024 static const struct drm_connector_funcs vmw_stdu_connector_funcs = { 1025 .dpms = vmw_du_connector_dpms, 1026 .detect = vmw_du_connector_detect, 1027 .fill_modes = vmw_du_connector_fill_modes, 1028 .set_property = vmw_du_connector_set_property, 1029 .destroy = vmw_stdu_connector_destroy, 1030 .reset = vmw_du_connector_reset, 1031 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 1032 .atomic_destroy_state = vmw_du_connector_destroy_state, 1033 .atomic_set_property = vmw_du_connector_atomic_set_property, 1034 .atomic_get_property = vmw_du_connector_atomic_get_property, 1035 }; 1036 1037 1038 static const struct 1039 drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = { 1040 .best_encoder = drm_atomic_helper_best_encoder, 1041 }; 1042 1043 1044 1045 /****************************************************************************** 1046 * Screen Target Display Plane Functions 1047 *****************************************************************************/ 1048 1049 1050 1051 /** 1052 * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface 1053 * 1054 * @plane: display plane 1055 * @old_state: Contains the FB to clean up 1056 * 1057 * Unpins the display surface 1058 * 1059 * Returns 0 on success 1060 */ 1061 static void 1062 vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane, 1063 struct drm_plane_state *old_state) 1064 { 1065 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 1066 1067 if (vps->surf) 1068 WARN_ON(!vps->pinned); 1069 1070 vmw_du_plane_cleanup_fb(plane, old_state); 1071 1072 vps->content_fb_type = SAME_AS_DISPLAY; 1073 vps->cpp = 0; 1074 } 1075 1076 1077 1078 /** 1079 * vmw_stdu_primary_plane_prepare_fb - Readies the display surface 1080 * 1081 * @plane: display plane 1082 * @new_state: info on the new plane state, including the FB 1083 * 1084 * This function allocates a new display surface if the content is 1085 * backed by a buffer object. The display surface is pinned here, and it'll 1086 * be unpinned in .cleanup_fb() 1087 * 1088 * Returns 0 on success 1089 */ 1090 static int 1091 vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane, 1092 struct drm_plane_state *new_state) 1093 { 1094 struct vmw_private *dev_priv = vmw_priv(plane->dev); 1095 struct drm_framebuffer *new_fb = new_state->fb; 1096 struct vmw_framebuffer *vfb; 1097 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 1098 enum stdu_content_type new_content_type; 1099 struct vmw_framebuffer_surface *new_vfbs; 1100 struct drm_crtc *crtc = new_state->crtc; 1101 uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h; 1102 int ret; 1103 1104 /* No FB to prepare */ 1105 if (!new_fb) { 1106 if (vps->surf) { 1107 WARN_ON(vps->pinned != 0); 1108 vmw_surface_unreference(&vps->surf); 1109 } 1110 1111 return 0; 1112 } 1113 1114 vfb = vmw_framebuffer_to_vfb(new_fb); 1115 new_vfbs = (vfb->bo) ? NULL : vmw_framebuffer_to_vfbs(new_fb); 1116 1117 if (new_vfbs && new_vfbs->surface->base_size.width == hdisplay && 1118 new_vfbs->surface->base_size.height == vdisplay) 1119 new_content_type = SAME_AS_DISPLAY; 1120 else if (vfb->bo) 1121 new_content_type = SEPARATE_BO; 1122 else 1123 new_content_type = SEPARATE_SURFACE; 1124 1125 if (new_content_type != SAME_AS_DISPLAY) { 1126 struct vmw_surface content_srf; 1127 struct drm_vmw_size display_base_size = {0}; 1128 1129 display_base_size.width = hdisplay; 1130 display_base_size.height = vdisplay; 1131 display_base_size.depth = 1; 1132 1133 /* 1134 * If content buffer is a buffer object, then we have to 1135 * construct surface info 1136 */ 1137 if (new_content_type == SEPARATE_BO) { 1138 1139 switch (new_fb->format->cpp[0]*8) { 1140 case 32: 1141 content_srf.format = SVGA3D_X8R8G8B8; 1142 break; 1143 1144 case 16: 1145 content_srf.format = SVGA3D_R5G6B5; 1146 break; 1147 1148 case 8: 1149 content_srf.format = SVGA3D_P8; 1150 break; 1151 1152 default: 1153 DRM_ERROR("Invalid format\n"); 1154 return -EINVAL; 1155 } 1156 1157 content_srf.flags = 0; 1158 content_srf.mip_levels[0] = 1; 1159 content_srf.multisample_count = 0; 1160 content_srf.multisample_pattern = 1161 SVGA3D_MS_PATTERN_NONE; 1162 content_srf.quality_level = SVGA3D_MS_QUALITY_NONE; 1163 } else { 1164 content_srf = *new_vfbs->surface; 1165 } 1166 1167 if (vps->surf) { 1168 struct drm_vmw_size cur_base_size = vps->surf->base_size; 1169 1170 if (cur_base_size.width != display_base_size.width || 1171 cur_base_size.height != display_base_size.height || 1172 vps->surf->format != content_srf.format) { 1173 WARN_ON(vps->pinned != 0); 1174 vmw_surface_unreference(&vps->surf); 1175 } 1176 1177 } 1178 1179 if (!vps->surf) { 1180 ret = vmw_surface_gb_priv_define 1181 (crtc->dev, 1182 /* Kernel visible only */ 1183 0, 1184 content_srf.flags, 1185 content_srf.format, 1186 true, /* a scanout buffer */ 1187 content_srf.mip_levels[0], 1188 content_srf.multisample_count, 1189 0, 1190 display_base_size, 1191 content_srf.multisample_pattern, 1192 content_srf.quality_level, 1193 &vps->surf); 1194 if (ret != 0) { 1195 DRM_ERROR("Couldn't allocate STDU surface.\n"); 1196 return ret; 1197 } 1198 } 1199 } else { 1200 /* 1201 * prepare_fb and clean_fb should only take care of pinning 1202 * and unpinning. References are tracked by state objects. 1203 * The only time we add a reference in prepare_fb is if the 1204 * state object doesn't have a reference to begin with 1205 */ 1206 if (vps->surf) { 1207 WARN_ON(vps->pinned != 0); 1208 vmw_surface_unreference(&vps->surf); 1209 } 1210 1211 vps->surf = vmw_surface_reference(new_vfbs->surface); 1212 } 1213 1214 if (vps->surf) { 1215 1216 /* Pin new surface before flipping */ 1217 ret = vmw_resource_pin(&vps->surf->res, false); 1218 if (ret) 1219 goto out_srf_unref; 1220 1221 vps->pinned++; 1222 } 1223 1224 vps->content_fb_type = new_content_type; 1225 1226 /* 1227 * This should only happen if the buffer object is too large to create a 1228 * proxy surface for. 1229 * If we are a 2D VM with a buffer object then we have to use CPU blit 1230 * so cache these mappings 1231 */ 1232 if (vps->content_fb_type == SEPARATE_BO && 1233 !(dev_priv->capabilities & SVGA_CAP_3D)) 1234 vps->cpp = new_fb->pitches[0] / new_fb->width; 1235 1236 return 0; 1237 1238 out_srf_unref: 1239 vmw_surface_unreference(&vps->surf); 1240 return ret; 1241 } 1242 1243 1244 1245 /** 1246 * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane 1247 * 1248 * @plane: display plane 1249 * @old_state: Only used to get crtc info 1250 * 1251 * Formally update stdu->display_srf to the new plane, and bind the new 1252 * plane STDU. This function is called during the commit phase when 1253 * all the preparation have been done and all the configurations have 1254 * been checked. 1255 */ 1256 static void 1257 vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane, 1258 struct drm_plane_state *old_state) 1259 { 1260 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state); 1261 struct drm_crtc *crtc = plane->state->crtc; 1262 struct vmw_screen_target_display_unit *stdu; 1263 struct drm_pending_vblank_event *event; 1264 struct vmw_private *dev_priv; 1265 int ret; 1266 1267 /* 1268 * We cannot really fail this function, so if we do, then output an 1269 * error and maintain consistent atomic state. 1270 */ 1271 if (crtc && plane->state->fb) { 1272 struct vmw_framebuffer *vfb = 1273 vmw_framebuffer_to_vfb(plane->state->fb); 1274 struct drm_vmw_rect vclips; 1275 stdu = vmw_crtc_to_stdu(crtc); 1276 dev_priv = vmw_priv(crtc->dev); 1277 1278 stdu->display_srf = vps->surf; 1279 stdu->content_fb_type = vps->content_fb_type; 1280 stdu->cpp = vps->cpp; 1281 1282 vclips.x = crtc->x; 1283 vclips.y = crtc->y; 1284 vclips.w = crtc->mode.hdisplay; 1285 vclips.h = crtc->mode.vdisplay; 1286 1287 ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res); 1288 if (ret) 1289 DRM_ERROR("Failed to bind surface to STDU.\n"); 1290 1291 if (vfb->bo) 1292 ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, 1293 &vclips, 1, 1, true, false, 1294 crtc); 1295 else 1296 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, 1297 &vclips, NULL, 0, 0, 1298 1, 1, NULL, crtc); 1299 if (ret) 1300 DRM_ERROR("Failed to update STDU.\n"); 1301 } else { 1302 crtc = old_state->crtc; 1303 stdu = vmw_crtc_to_stdu(crtc); 1304 dev_priv = vmw_priv(crtc->dev); 1305 1306 /* 1307 * When disabling a plane, CRTC and FB should always be NULL 1308 * together, otherwise it's an error. 1309 * Here primary plane is being disable so blank the screen 1310 * target display unit, if not already done. 1311 */ 1312 if (!stdu->defined) 1313 return; 1314 1315 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL); 1316 if (ret) 1317 DRM_ERROR("Failed to blank STDU\n"); 1318 1319 ret = vmw_stdu_update_st(dev_priv, stdu); 1320 if (ret) 1321 DRM_ERROR("Failed to update STDU.\n"); 1322 1323 return; 1324 } 1325 1326 event = crtc->state->event; 1327 /* 1328 * In case of failure and other cases, vblank event will be sent in 1329 * vmw_du_crtc_atomic_flush. 1330 */ 1331 if (event && (ret == 0)) { 1332 struct vmw_fence_obj *fence = NULL; 1333 struct drm_file *file_priv = event->base.file_priv; 1334 1335 vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); 1336 1337 /* 1338 * If fence is NULL, then already sync. 1339 */ 1340 if (fence) { 1341 ret = vmw_event_fence_action_queue( 1342 file_priv, fence, &event->base, 1343 &event->event.vbl.tv_sec, 1344 &event->event.vbl.tv_usec, 1345 true); 1346 if (ret) 1347 DRM_ERROR("Failed to queue event on fence.\n"); 1348 else 1349 crtc->state->event = NULL; 1350 1351 vmw_fence_obj_unreference(&fence); 1352 } 1353 } else { 1354 (void) vmw_fifo_flush(dev_priv, false); 1355 } 1356 } 1357 1358 1359 static const struct drm_plane_funcs vmw_stdu_plane_funcs = { 1360 .update_plane = drm_atomic_helper_update_plane, 1361 .disable_plane = drm_atomic_helper_disable_plane, 1362 .destroy = vmw_du_primary_plane_destroy, 1363 .reset = vmw_du_plane_reset, 1364 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 1365 .atomic_destroy_state = vmw_du_plane_destroy_state, 1366 }; 1367 1368 static const struct drm_plane_funcs vmw_stdu_cursor_funcs = { 1369 .update_plane = drm_atomic_helper_update_plane, 1370 .disable_plane = drm_atomic_helper_disable_plane, 1371 .destroy = vmw_du_cursor_plane_destroy, 1372 .reset = vmw_du_plane_reset, 1373 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 1374 .atomic_destroy_state = vmw_du_plane_destroy_state, 1375 }; 1376 1377 1378 /* 1379 * Atomic Helpers 1380 */ 1381 static const struct 1382 drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = { 1383 .atomic_check = vmw_du_cursor_plane_atomic_check, 1384 .atomic_update = vmw_du_cursor_plane_atomic_update, 1385 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 1386 .cleanup_fb = vmw_du_plane_cleanup_fb, 1387 }; 1388 1389 static const struct 1390 drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = { 1391 .atomic_check = vmw_du_primary_plane_atomic_check, 1392 .atomic_update = vmw_stdu_primary_plane_atomic_update, 1393 .prepare_fb = vmw_stdu_primary_plane_prepare_fb, 1394 .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb, 1395 }; 1396 1397 static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = { 1398 .prepare = vmw_stdu_crtc_helper_prepare, 1399 .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb, 1400 .atomic_check = vmw_du_crtc_atomic_check, 1401 .atomic_begin = vmw_du_crtc_atomic_begin, 1402 .atomic_flush = vmw_du_crtc_atomic_flush, 1403 .atomic_enable = vmw_stdu_crtc_atomic_enable, 1404 .atomic_disable = vmw_stdu_crtc_atomic_disable, 1405 }; 1406 1407 1408 /** 1409 * vmw_stdu_init - Sets up a Screen Target Display Unit 1410 * 1411 * @dev_priv: VMW DRM device 1412 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS 1413 * 1414 * This function is called once per CRTC, and allocates one Screen Target 1415 * display unit to represent that CRTC. Since the SVGA device does not separate 1416 * out encoder and connector, they are represented as part of the STDU as well. 1417 */ 1418 static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit) 1419 { 1420 struct vmw_screen_target_display_unit *stdu; 1421 struct drm_device *dev = dev_priv->dev; 1422 struct drm_connector *connector; 1423 struct drm_encoder *encoder; 1424 struct drm_plane *primary, *cursor; 1425 struct drm_crtc *crtc; 1426 int ret; 1427 1428 1429 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL); 1430 if (!stdu) 1431 return -ENOMEM; 1432 1433 stdu->base.unit = unit; 1434 crtc = &stdu->base.crtc; 1435 encoder = &stdu->base.encoder; 1436 connector = &stdu->base.connector; 1437 primary = &stdu->base.primary; 1438 cursor = &stdu->base.cursor; 1439 1440 stdu->base.pref_active = (unit == 0); 1441 stdu->base.pref_width = dev_priv->initial_width; 1442 stdu->base.pref_height = dev_priv->initial_height; 1443 1444 /* 1445 * Remove this after enabling atomic because property values can 1446 * only exist in a state object 1447 */ 1448 stdu->base.is_implicit = false; 1449 1450 /* Initialize primary plane */ 1451 vmw_du_plane_reset(primary); 1452 1453 ret = drm_universal_plane_init(dev, primary, 1454 0, &vmw_stdu_plane_funcs, 1455 vmw_primary_plane_formats, 1456 ARRAY_SIZE(vmw_primary_plane_formats), 1457 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 1458 if (ret) { 1459 DRM_ERROR("Failed to initialize primary plane"); 1460 goto err_free; 1461 } 1462 1463 drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs); 1464 1465 /* Initialize cursor plane */ 1466 vmw_du_plane_reset(cursor); 1467 1468 ret = drm_universal_plane_init(dev, cursor, 1469 0, &vmw_stdu_cursor_funcs, 1470 vmw_cursor_plane_formats, 1471 ARRAY_SIZE(vmw_cursor_plane_formats), 1472 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 1473 if (ret) { 1474 DRM_ERROR("Failed to initialize cursor plane"); 1475 drm_plane_cleanup(&stdu->base.primary); 1476 goto err_free; 1477 } 1478 1479 drm_plane_helper_add(cursor, &vmw_stdu_cursor_plane_helper_funcs); 1480 1481 vmw_du_connector_reset(connector); 1482 1483 ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs, 1484 DRM_MODE_CONNECTOR_VIRTUAL); 1485 if (ret) { 1486 DRM_ERROR("Failed to initialize connector\n"); 1487 goto err_free; 1488 } 1489 1490 drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs); 1491 connector->status = vmw_du_connector_detect(connector, false); 1492 vmw_connector_state_to_vcs(connector->state)->is_implicit = false; 1493 1494 ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs, 1495 DRM_MODE_ENCODER_VIRTUAL, NULL); 1496 if (ret) { 1497 DRM_ERROR("Failed to initialize encoder\n"); 1498 goto err_free_connector; 1499 } 1500 1501 (void) drm_connector_attach_encoder(connector, encoder); 1502 encoder->possible_crtcs = (1 << unit); 1503 encoder->possible_clones = 0; 1504 1505 ret = drm_connector_register(connector); 1506 if (ret) { 1507 DRM_ERROR("Failed to register connector\n"); 1508 goto err_free_encoder; 1509 } 1510 1511 vmw_du_crtc_reset(crtc); 1512 ret = drm_crtc_init_with_planes(dev, crtc, &stdu->base.primary, 1513 &stdu->base.cursor, 1514 &vmw_stdu_crtc_funcs, NULL); 1515 if (ret) { 1516 DRM_ERROR("Failed to initialize CRTC\n"); 1517 goto err_free_unregister; 1518 } 1519 1520 drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs); 1521 1522 drm_mode_crtc_set_gamma_size(crtc, 256); 1523 1524 drm_object_attach_property(&connector->base, 1525 dev_priv->hotplug_mode_update_property, 1); 1526 drm_object_attach_property(&connector->base, 1527 dev->mode_config.suggested_x_property, 0); 1528 drm_object_attach_property(&connector->base, 1529 dev->mode_config.suggested_y_property, 0); 1530 if (dev_priv->implicit_placement_property) 1531 drm_object_attach_property 1532 (&connector->base, 1533 dev_priv->implicit_placement_property, 1534 stdu->base.is_implicit); 1535 return 0; 1536 1537 err_free_unregister: 1538 drm_connector_unregister(connector); 1539 err_free_encoder: 1540 drm_encoder_cleanup(encoder); 1541 err_free_connector: 1542 drm_connector_cleanup(connector); 1543 err_free: 1544 kfree(stdu); 1545 return ret; 1546 } 1547 1548 1549 1550 /** 1551 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit 1552 * 1553 * @stdu: Screen Target Display Unit to be destroyed 1554 * 1555 * Clean up after vmw_stdu_init 1556 */ 1557 static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu) 1558 { 1559 vmw_du_cleanup(&stdu->base); 1560 kfree(stdu); 1561 } 1562 1563 1564 1565 /****************************************************************************** 1566 * Screen Target Display KMS Functions 1567 * 1568 * These functions are called by the common KMS code in vmwgfx_kms.c 1569 *****************************************************************************/ 1570 1571 /** 1572 * vmw_kms_stdu_init_display - Initializes a Screen Target based display 1573 * 1574 * @dev_priv: VMW DRM device 1575 * 1576 * This function initialize a Screen Target based display device. It checks 1577 * the capability bits to make sure the underlying hardware can support 1578 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display 1579 * Units, as supported by the display hardware. 1580 * 1581 * RETURNS: 1582 * 0 on success, error code otherwise 1583 */ 1584 int vmw_kms_stdu_init_display(struct vmw_private *dev_priv) 1585 { 1586 struct drm_device *dev = dev_priv->dev; 1587 int i, ret; 1588 1589 1590 /* Do nothing if Screen Target support is turned off */ 1591 if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE) 1592 return -ENOSYS; 1593 1594 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS)) 1595 return -ENOSYS; 1596 1597 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 1598 if (unlikely(ret != 0)) 1599 return ret; 1600 1601 dev_priv->active_display_unit = vmw_du_screen_target; 1602 1603 if (dev_priv->capabilities & SVGA_CAP_3D) { 1604 /* 1605 * For 3D VMs, display (scanout) buffer size is the smaller of 1606 * max texture and max STDU 1607 */ 1608 uint32_t max_width, max_height; 1609 1610 max_width = min(dev_priv->texture_max_width, 1611 dev_priv->stdu_max_width); 1612 max_height = min(dev_priv->texture_max_height, 1613 dev_priv->stdu_max_height); 1614 1615 dev->mode_config.max_width = max_width; 1616 dev->mode_config.max_height = max_height; 1617 } else { 1618 /* 1619 * Given various display aspect ratios, there's no way to 1620 * estimate these using prim_bb_mem. So just set these to 1621 * something arbitrarily large and we will reject any layout 1622 * that doesn't fit prim_bb_mem later 1623 */ 1624 dev->mode_config.max_width = 8192; 1625 dev->mode_config.max_height = 8192; 1626 } 1627 1628 vmw_kms_create_implicit_placement_property(dev_priv, false); 1629 1630 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) { 1631 ret = vmw_stdu_init(dev_priv, i); 1632 1633 if (unlikely(ret != 0)) { 1634 DRM_ERROR("Failed to initialize STDU %d", i); 1635 return ret; 1636 } 1637 } 1638 1639 DRM_INFO("Screen Target Display device initialized\n"); 1640 1641 return 0; 1642 } 1643