1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /************************************************************************** 3 * 4 * Copyright 2011-2023 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_bo.h" 29 #include "vmwgfx_kms.h" 30 31 #include <drm/drm_atomic.h> 32 #include <drm/drm_atomic_helper.h> 33 #include <drm/drm_damage_helper.h> 34 #include <drm/drm_fourcc.h> 35 36 #define vmw_crtc_to_sou(x) \ 37 container_of(x, struct vmw_screen_object_unit, base.crtc) 38 #define vmw_encoder_to_sou(x) \ 39 container_of(x, struct vmw_screen_object_unit, base.encoder) 40 #define vmw_connector_to_sou(x) \ 41 container_of(x, struct vmw_screen_object_unit, base.connector) 42 43 /** 44 * struct vmw_kms_sou_surface_dirty - Closure structure for 45 * blit surface to screen command. 46 * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). 47 * @left: Left side of bounding box. 48 * @right: Right side of bounding box. 49 * @top: Top side of bounding box. 50 * @bottom: Bottom side of bounding box. 51 * @dst_x: Difference between source clip rects and framebuffer coordinates. 52 * @dst_y: Difference between source clip rects and framebuffer coordinates. 53 * @sid: Surface id of surface to copy from. 54 */ 55 struct vmw_kms_sou_surface_dirty { 56 struct vmw_kms_dirty base; 57 s32 left, right, top, bottom; 58 s32 dst_x, dst_y; 59 u32 sid; 60 }; 61 62 /* 63 * SVGA commands that are used by this code. Please see the device headers 64 * for explanation. 65 */ 66 struct vmw_kms_sou_readback_blit { 67 uint32 header; 68 SVGAFifoCmdBlitScreenToGMRFB body; 69 }; 70 71 struct vmw_kms_sou_bo_blit { 72 uint32 header; 73 SVGAFifoCmdBlitGMRFBToScreen body; 74 }; 75 76 struct vmw_kms_sou_dirty_cmd { 77 SVGA3dCmdHeader header; 78 SVGA3dCmdBlitSurfaceToScreen body; 79 }; 80 81 struct vmw_kms_sou_define_gmrfb { 82 uint32_t header; 83 SVGAFifoCmdDefineGMRFB body; 84 }; 85 86 /* 87 * Display unit using screen objects. 88 */ 89 struct vmw_screen_object_unit { 90 struct vmw_display_unit base; 91 92 unsigned long buffer_size; /**< Size of allocated buffer */ 93 struct vmw_bo *buffer; /**< Backing store buffer */ 94 95 bool defined; 96 }; 97 98 static void vmw_sou_destroy(struct vmw_screen_object_unit *sou) 99 { 100 vmw_du_cleanup(&sou->base); 101 kfree(sou); 102 } 103 104 105 /* 106 * Screen Object Display Unit CRTC functions 107 */ 108 109 static void vmw_sou_crtc_destroy(struct drm_crtc *crtc) 110 { 111 vmw_sou_destroy(vmw_crtc_to_sou(crtc)); 112 } 113 114 /* 115 * Send the fifo command to create a screen. 116 */ 117 static int vmw_sou_fifo_create(struct vmw_private *dev_priv, 118 struct vmw_screen_object_unit *sou, 119 int x, int y, 120 struct drm_display_mode *mode) 121 { 122 size_t fifo_size; 123 124 struct { 125 struct { 126 uint32_t cmdType; 127 } header; 128 SVGAScreenObject obj; 129 } *cmd; 130 131 BUG_ON(!sou->buffer); 132 133 fifo_size = sizeof(*cmd); 134 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size); 135 if (unlikely(cmd == NULL)) 136 return -ENOMEM; 137 138 memset(cmd, 0, fifo_size); 139 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN; 140 cmd->obj.structSize = sizeof(SVGAScreenObject); 141 cmd->obj.id = sou->base.unit; 142 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT | 143 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0); 144 cmd->obj.size.width = mode->hdisplay; 145 cmd->obj.size.height = mode->vdisplay; 146 cmd->obj.root.x = x; 147 cmd->obj.root.y = y; 148 sou->base.set_gui_x = cmd->obj.root.x; 149 sou->base.set_gui_y = cmd->obj.root.y; 150 151 /* Ok to assume that buffer is pinned in vram */ 152 vmw_bo_get_guest_ptr(&sou->buffer->tbo, &cmd->obj.backingStore.ptr); 153 cmd->obj.backingStore.pitch = mode->hdisplay * 4; 154 155 vmw_cmd_commit(dev_priv, fifo_size); 156 157 sou->defined = true; 158 159 return 0; 160 } 161 162 /* 163 * Send the fifo command to destroy a screen. 164 */ 165 static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv, 166 struct vmw_screen_object_unit *sou) 167 { 168 size_t fifo_size; 169 int ret; 170 171 struct { 172 struct { 173 uint32_t cmdType; 174 } header; 175 SVGAFifoCmdDestroyScreen body; 176 } *cmd; 177 178 /* no need to do anything */ 179 if (unlikely(!sou->defined)) 180 return 0; 181 182 fifo_size = sizeof(*cmd); 183 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size); 184 if (unlikely(cmd == NULL)) 185 return -ENOMEM; 186 187 memset(cmd, 0, fifo_size); 188 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN; 189 cmd->body.screenId = sou->base.unit; 190 191 vmw_cmd_commit(dev_priv, fifo_size); 192 193 /* Force sync */ 194 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); 195 if (unlikely(ret != 0)) 196 DRM_ERROR("Failed to sync with HW"); 197 else 198 sou->defined = false; 199 200 return ret; 201 } 202 203 /** 204 * vmw_sou_crtc_mode_set_nofb - Create new screen 205 * 206 * @crtc: CRTC associated with the new screen 207 * 208 * This function creates/destroys a screen. This function cannot fail, so if 209 * somehow we run into a failure, just do the best we can to get out. 210 */ 211 static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc) 212 { 213 struct vmw_private *dev_priv; 214 struct vmw_screen_object_unit *sou; 215 struct vmw_framebuffer *vfb; 216 struct drm_framebuffer *fb; 217 struct drm_plane_state *ps; 218 struct vmw_plane_state *vps; 219 int ret; 220 221 sou = vmw_crtc_to_sou(crtc); 222 dev_priv = vmw_priv(crtc->dev); 223 ps = crtc->primary->state; 224 fb = ps->fb; 225 vps = vmw_plane_state_to_vps(ps); 226 227 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 228 229 if (sou->defined) { 230 ret = vmw_sou_fifo_destroy(dev_priv, sou); 231 if (ret) { 232 DRM_ERROR("Failed to destroy Screen Object\n"); 233 return; 234 } 235 } 236 237 if (vfb) { 238 struct drm_connector_state *conn_state; 239 struct vmw_connector_state *vmw_conn_state; 240 int x, y; 241 242 sou->buffer = vps->bo; 243 sou->buffer_size = vps->bo_size; 244 245 conn_state = sou->base.connector.state; 246 vmw_conn_state = vmw_connector_state_to_vcs(conn_state); 247 248 x = vmw_conn_state->gui_x; 249 y = vmw_conn_state->gui_y; 250 251 ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode); 252 if (ret) 253 DRM_ERROR("Failed to define Screen Object %dx%d\n", 254 crtc->x, crtc->y); 255 256 } else { 257 sou->buffer = NULL; 258 sou->buffer_size = 0; 259 } 260 } 261 262 /** 263 * vmw_sou_crtc_helper_prepare - Noop 264 * 265 * @crtc: CRTC associated with the new screen 266 * 267 * Prepares the CRTC for a mode set, but we don't need to do anything here. 268 */ 269 static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc) 270 { 271 } 272 273 /** 274 * vmw_sou_crtc_atomic_enable - Noop 275 * 276 * @crtc: CRTC associated with the new screen 277 * @state: Unused 278 * 279 * This is called after a mode set has been completed. 280 */ 281 static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc, 282 struct drm_atomic_state *state) 283 { 284 } 285 286 /** 287 * vmw_sou_crtc_atomic_disable - Turns off CRTC 288 * 289 * @crtc: CRTC to be turned off 290 * @state: Unused 291 */ 292 static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc, 293 struct drm_atomic_state *state) 294 { 295 struct vmw_private *dev_priv; 296 struct vmw_screen_object_unit *sou; 297 int ret; 298 299 300 if (!crtc) { 301 DRM_ERROR("CRTC is NULL\n"); 302 return; 303 } 304 305 sou = vmw_crtc_to_sou(crtc); 306 dev_priv = vmw_priv(crtc->dev); 307 308 if (sou->defined) { 309 ret = vmw_sou_fifo_destroy(dev_priv, sou); 310 if (ret) 311 DRM_ERROR("Failed to destroy Screen Object\n"); 312 } 313 } 314 315 static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = { 316 .gamma_set = vmw_du_crtc_gamma_set, 317 .destroy = vmw_sou_crtc_destroy, 318 .reset = vmw_du_crtc_reset, 319 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 320 .atomic_destroy_state = vmw_du_crtc_destroy_state, 321 .set_config = drm_atomic_helper_set_config, 322 .page_flip = drm_atomic_helper_page_flip, 323 }; 324 325 /* 326 * Screen Object Display Unit encoder functions 327 */ 328 329 static void vmw_sou_encoder_destroy(struct drm_encoder *encoder) 330 { 331 vmw_sou_destroy(vmw_encoder_to_sou(encoder)); 332 } 333 334 static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = { 335 .destroy = vmw_sou_encoder_destroy, 336 }; 337 338 /* 339 * Screen Object Display Unit connector functions 340 */ 341 342 static void vmw_sou_connector_destroy(struct drm_connector *connector) 343 { 344 vmw_sou_destroy(vmw_connector_to_sou(connector)); 345 } 346 347 static const struct drm_connector_funcs vmw_sou_connector_funcs = { 348 .dpms = vmw_du_connector_dpms, 349 .detect = vmw_du_connector_detect, 350 .fill_modes = vmw_du_connector_fill_modes, 351 .destroy = vmw_sou_connector_destroy, 352 .reset = vmw_du_connector_reset, 353 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 354 .atomic_destroy_state = vmw_du_connector_destroy_state, 355 }; 356 357 358 static const struct 359 drm_connector_helper_funcs vmw_sou_connector_helper_funcs = { 360 }; 361 362 363 364 /* 365 * Screen Object Display Plane Functions 366 */ 367 368 /** 369 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer 370 * 371 * @plane: display plane 372 * @old_state: Contains the FB to clean up 373 * 374 * Unpins the display surface 375 * 376 * Returns 0 on success 377 */ 378 static void 379 vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane, 380 struct drm_plane_state *old_state) 381 { 382 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 383 struct drm_crtc *crtc = plane->state->crtc ? 384 plane->state->crtc : old_state->crtc; 385 386 if (vps->bo) 387 vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false); 388 vmw_bo_unreference(&vps->bo); 389 vps->bo_size = 0; 390 391 vmw_du_plane_cleanup_fb(plane, old_state); 392 } 393 394 395 /** 396 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer 397 * 398 * @plane: display plane 399 * @new_state: info on the new plane state, including the FB 400 * 401 * The SOU backing buffer is our equivalent of the display plane. 402 * 403 * Returns 0 on success 404 */ 405 static int 406 vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane, 407 struct drm_plane_state *new_state) 408 { 409 struct drm_framebuffer *new_fb = new_state->fb; 410 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc; 411 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 412 struct vmw_private *dev_priv; 413 int ret; 414 struct vmw_bo_params bo_params = { 415 .domain = VMW_BO_DOMAIN_VRAM, 416 .busy_domain = VMW_BO_DOMAIN_VRAM, 417 .bo_type = ttm_bo_type_device, 418 .pin = true 419 }; 420 421 if (!new_fb) { 422 vmw_bo_unreference(&vps->bo); 423 vps->bo_size = 0; 424 425 return 0; 426 } 427 428 bo_params.size = new_state->crtc_w * new_state->crtc_h * 4; 429 dev_priv = vmw_priv(crtc->dev); 430 431 if (vps->bo) { 432 if (vps->bo_size == bo_params.size) { 433 /* 434 * Note that this might temporarily up the pin-count 435 * to 2, until cleanup_fb() is called. 436 */ 437 return vmw_bo_pin_in_vram(dev_priv, vps->bo, 438 true); 439 } 440 441 vmw_bo_unreference(&vps->bo); 442 vps->bo_size = 0; 443 } 444 445 vmw_svga_enable(dev_priv); 446 447 /* After we have alloced the backing store might not be able to 448 * resume the overlays, this is preferred to failing to alloc. 449 */ 450 vmw_overlay_pause_all(dev_priv); 451 ret = vmw_bo_create(dev_priv, &bo_params, &vps->bo); 452 vmw_overlay_resume_all(dev_priv); 453 if (ret) 454 return ret; 455 456 vps->bo_size = bo_params.size; 457 458 /* 459 * TTM already thinks the buffer is pinned, but make sure the 460 * pin_count is upped. 461 */ 462 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true); 463 } 464 465 static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update, 466 uint32_t num_hits) 467 { 468 return sizeof(struct vmw_kms_sou_define_gmrfb) + 469 sizeof(struct vmw_kms_sou_bo_blit) * num_hits; 470 } 471 472 static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update, 473 void *cmd) 474 { 475 struct vmw_framebuffer_bo *vfbbo = 476 container_of(update->vfb, typeof(*vfbbo), base); 477 struct vmw_kms_sou_define_gmrfb *gmr = cmd; 478 int depth = update->vfb->base.format->depth; 479 480 /* Emulate RGBA support, contrary to svga_reg.h this is not 481 * supported by hosts. This is only a problem if we are reading 482 * this value later and expecting what we uploaded back. 483 */ 484 if (depth == 32) 485 depth = 24; 486 487 gmr->header = SVGA_CMD_DEFINE_GMRFB; 488 489 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8; 490 gmr->body.format.colorDepth = depth; 491 gmr->body.format.reserved = 0; 492 gmr->body.bytesPerLine = update->vfb->base.pitches[0]; 493 vmw_bo_get_guest_ptr(&vfbbo->buffer->tbo, &gmr->body.ptr); 494 495 return sizeof(*gmr); 496 } 497 498 static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update, 499 void *cmd, struct drm_rect *clip, 500 uint32_t fb_x, uint32_t fb_y) 501 { 502 struct vmw_kms_sou_bo_blit *blit = cmd; 503 504 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 505 blit->body.destScreenId = update->du->unit; 506 blit->body.srcOrigin.x = fb_x; 507 blit->body.srcOrigin.y = fb_y; 508 blit->body.destRect.left = clip->x1; 509 blit->body.destRect.top = clip->y1; 510 blit->body.destRect.right = clip->x2; 511 blit->body.destRect.bottom = clip->y2; 512 513 return sizeof(*blit); 514 } 515 516 static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update, 517 void *cmd, struct drm_rect *bb) 518 { 519 return 0; 520 } 521 522 /** 523 * vmw_sou_plane_update_bo - Update display unit for bo backed fb. 524 * @dev_priv: Device private. 525 * @plane: Plane state. 526 * @old_state: Old plane state. 527 * @vfb: Framebuffer which is blitted to display unit. 528 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 529 * The returned fence pointer may be NULL in which case the device 530 * has already synchronized. 531 * 532 * Return: 0 on success or a negative error code on failure. 533 */ 534 static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv, 535 struct drm_plane *plane, 536 struct drm_plane_state *old_state, 537 struct vmw_framebuffer *vfb, 538 struct vmw_fence_obj **out_fence) 539 { 540 struct vmw_du_update_plane_buffer bo_update; 541 542 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer)); 543 bo_update.base.plane = plane; 544 bo_update.base.old_state = old_state; 545 bo_update.base.dev_priv = dev_priv; 546 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc); 547 bo_update.base.vfb = vfb; 548 bo_update.base.out_fence = out_fence; 549 bo_update.base.mutex = NULL; 550 bo_update.base.intr = true; 551 552 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size; 553 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb; 554 bo_update.base.clip = vmw_sou_bo_populate_clip; 555 bo_update.base.post_clip = vmw_stud_bo_post_clip; 556 557 return vmw_du_helper_plane_update(&bo_update.base); 558 } 559 560 static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update, 561 uint32_t num_hits) 562 { 563 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) * 564 num_hits; 565 } 566 567 static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update, 568 void *cmd) 569 { 570 struct vmw_du_update_plane_surface *srf_update; 571 572 srf_update = container_of(update, typeof(*srf_update), base); 573 574 /* 575 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that 576 * its bounding box is filled before iterating over all the clips. So 577 * store the FIFO start address and revisit to fill the details. 578 */ 579 srf_update->cmd_start = cmd; 580 581 return 0; 582 } 583 584 static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update, 585 void *cmd, uint32_t num_hits) 586 { 587 struct vmw_kms_sou_dirty_cmd *blit = cmd; 588 struct vmw_framebuffer_surface *vfbs; 589 590 vfbs = container_of(update->vfb, typeof(*vfbs), base); 591 592 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 593 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) * 594 num_hits; 595 596 blit->body.srcImage.sid = vfbs->surface->res.id; 597 blit->body.destScreenId = update->du->unit; 598 599 /* Update the source and destination bounding box later in post_clip */ 600 blit->body.srcRect.left = 0; 601 blit->body.srcRect.top = 0; 602 blit->body.srcRect.right = 0; 603 blit->body.srcRect.bottom = 0; 604 605 blit->body.destRect.left = 0; 606 blit->body.destRect.top = 0; 607 blit->body.destRect.right = 0; 608 blit->body.destRect.bottom = 0; 609 610 return sizeof(*blit); 611 } 612 613 static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update, 614 void *cmd, struct drm_rect *clip, 615 uint32_t src_x, uint32_t src_y) 616 { 617 SVGASignedRect *rect = cmd; 618 619 /* 620 * rects are relative to dest bounding box rect on screen object, so 621 * translate to it later in post_clip 622 */ 623 rect->left = clip->x1; 624 rect->top = clip->y1; 625 rect->right = clip->x2; 626 rect->bottom = clip->y2; 627 628 return sizeof(*rect); 629 } 630 631 static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update, 632 void *cmd, struct drm_rect *bb) 633 { 634 struct vmw_du_update_plane_surface *srf_update; 635 struct drm_plane_state *state = update->plane->state; 636 struct drm_rect src_bb; 637 struct vmw_kms_sou_dirty_cmd *blit; 638 SVGASignedRect *rect; 639 uint32_t num_hits; 640 int translate_src_x; 641 int translate_src_y; 642 int i; 643 644 srf_update = container_of(update, typeof(*srf_update), base); 645 646 blit = srf_update->cmd_start; 647 rect = (SVGASignedRect *)&blit[1]; 648 649 num_hits = (blit->header.size - sizeof(blit->body))/ 650 sizeof(SVGASignedRect); 651 652 src_bb = *bb; 653 654 /* To translate bb back to fb src coord */ 655 translate_src_x = (state->src_x >> 16) - state->crtc_x; 656 translate_src_y = (state->src_y >> 16) - state->crtc_y; 657 658 drm_rect_translate(&src_bb, translate_src_x, translate_src_y); 659 660 blit->body.srcRect.left = src_bb.x1; 661 blit->body.srcRect.top = src_bb.y1; 662 blit->body.srcRect.right = src_bb.x2; 663 blit->body.srcRect.bottom = src_bb.y2; 664 665 blit->body.destRect.left = bb->x1; 666 blit->body.destRect.top = bb->y1; 667 blit->body.destRect.right = bb->x2; 668 blit->body.destRect.bottom = bb->y2; 669 670 /* rects are relative to dest bb rect */ 671 for (i = 0; i < num_hits; i++) { 672 rect->left -= bb->x1; 673 rect->top -= bb->y1; 674 rect->right -= bb->x1; 675 rect->bottom -= bb->y1; 676 rect++; 677 } 678 679 return 0; 680 } 681 682 /** 683 * vmw_sou_plane_update_surface - Update display unit for surface backed fb. 684 * @dev_priv: Device private. 685 * @plane: Plane state. 686 * @old_state: Old plane state. 687 * @vfb: Framebuffer which is blitted to display unit 688 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 689 * The returned fence pointer may be NULL in which case the device 690 * has already synchronized. 691 * 692 * Return: 0 on success or a negative error code on failure. 693 */ 694 static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv, 695 struct drm_plane *plane, 696 struct drm_plane_state *old_state, 697 struct vmw_framebuffer *vfb, 698 struct vmw_fence_obj **out_fence) 699 { 700 struct vmw_du_update_plane_surface srf_update; 701 702 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface)); 703 srf_update.base.plane = plane; 704 srf_update.base.old_state = old_state; 705 srf_update.base.dev_priv = dev_priv; 706 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc); 707 srf_update.base.vfb = vfb; 708 srf_update.base.out_fence = out_fence; 709 srf_update.base.mutex = &dev_priv->cmdbuf_mutex; 710 srf_update.base.intr = true; 711 712 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size; 713 srf_update.base.post_prepare = vmw_sou_surface_post_prepare; 714 srf_update.base.pre_clip = vmw_sou_surface_pre_clip; 715 srf_update.base.clip = vmw_sou_surface_clip_rect; 716 srf_update.base.post_clip = vmw_sou_surface_post_clip; 717 718 return vmw_du_helper_plane_update(&srf_update.base); 719 } 720 721 static void 722 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane, 723 struct drm_atomic_state *state) 724 { 725 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); 726 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); 727 struct drm_crtc *crtc = new_state->crtc; 728 struct vmw_fence_obj *fence = NULL; 729 int ret; 730 731 /* In case of device error, maintain consistent atomic state */ 732 if (crtc && new_state->fb) { 733 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 734 struct vmw_framebuffer *vfb = 735 vmw_framebuffer_to_vfb(new_state->fb); 736 737 if (vfb->bo) 738 ret = vmw_sou_plane_update_bo(dev_priv, plane, 739 old_state, vfb, &fence); 740 else 741 ret = vmw_sou_plane_update_surface(dev_priv, plane, 742 old_state, vfb, 743 &fence); 744 if (ret != 0) 745 DRM_ERROR("Failed to update screen.\n"); 746 } else { 747 /* Do nothing when fb and crtc is NULL (blank crtc) */ 748 return; 749 } 750 751 if (fence) 752 vmw_fence_obj_unreference(&fence); 753 } 754 755 756 static const struct drm_plane_funcs vmw_sou_plane_funcs = { 757 .update_plane = drm_atomic_helper_update_plane, 758 .disable_plane = drm_atomic_helper_disable_plane, 759 .destroy = vmw_du_primary_plane_destroy, 760 .reset = vmw_du_plane_reset, 761 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 762 .atomic_destroy_state = vmw_du_plane_destroy_state, 763 }; 764 765 static const struct drm_plane_funcs vmw_sou_cursor_funcs = { 766 .update_plane = drm_atomic_helper_update_plane, 767 .disable_plane = drm_atomic_helper_disable_plane, 768 .destroy = vmw_du_cursor_plane_destroy, 769 .reset = vmw_du_plane_reset, 770 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 771 .atomic_destroy_state = vmw_du_plane_destroy_state, 772 }; 773 774 /* 775 * Atomic Helpers 776 */ 777 static const struct 778 drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = { 779 .atomic_check = vmw_du_cursor_plane_atomic_check, 780 .atomic_update = vmw_du_cursor_plane_atomic_update, 781 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 782 .cleanup_fb = vmw_du_cursor_plane_cleanup_fb, 783 }; 784 785 static const struct 786 drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = { 787 .atomic_check = vmw_du_primary_plane_atomic_check, 788 .atomic_update = vmw_sou_primary_plane_atomic_update, 789 .prepare_fb = vmw_sou_primary_plane_prepare_fb, 790 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb, 791 }; 792 793 static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = { 794 .prepare = vmw_sou_crtc_helper_prepare, 795 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb, 796 .atomic_check = vmw_du_crtc_atomic_check, 797 .atomic_begin = vmw_du_crtc_atomic_begin, 798 .atomic_flush = vmw_du_crtc_atomic_flush, 799 .atomic_enable = vmw_sou_crtc_atomic_enable, 800 .atomic_disable = vmw_sou_crtc_atomic_disable, 801 }; 802 803 804 static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) 805 { 806 struct vmw_screen_object_unit *sou; 807 struct drm_device *dev = &dev_priv->drm; 808 struct drm_connector *connector; 809 struct drm_encoder *encoder; 810 struct drm_plane *primary; 811 struct vmw_cursor_plane *cursor; 812 struct drm_crtc *crtc; 813 int ret; 814 815 sou = kzalloc(sizeof(*sou), GFP_KERNEL); 816 if (!sou) 817 return -ENOMEM; 818 819 sou->base.unit = unit; 820 crtc = &sou->base.crtc; 821 encoder = &sou->base.encoder; 822 connector = &sou->base.connector; 823 primary = &sou->base.primary; 824 cursor = &sou->base.cursor; 825 826 sou->base.pref_active = (unit == 0); 827 sou->base.pref_width = dev_priv->initial_width; 828 sou->base.pref_height = dev_priv->initial_height; 829 sou->base.pref_mode = NULL; 830 831 /* 832 * Remove this after enabling atomic because property values can 833 * only exist in a state object 834 */ 835 sou->base.is_implicit = false; 836 837 /* Initialize primary plane */ 838 ret = drm_universal_plane_init(dev, primary, 839 0, &vmw_sou_plane_funcs, 840 vmw_primary_plane_formats, 841 ARRAY_SIZE(vmw_primary_plane_formats), 842 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 843 if (ret) { 844 DRM_ERROR("Failed to initialize primary plane"); 845 goto err_free; 846 } 847 848 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs); 849 drm_plane_enable_fb_damage_clips(primary); 850 851 /* Initialize cursor plane */ 852 ret = drm_universal_plane_init(dev, &cursor->base, 853 0, &vmw_sou_cursor_funcs, 854 vmw_cursor_plane_formats, 855 ARRAY_SIZE(vmw_cursor_plane_formats), 856 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 857 if (ret) { 858 DRM_ERROR("Failed to initialize cursor plane"); 859 drm_plane_cleanup(&sou->base.primary); 860 goto err_free; 861 } 862 863 drm_plane_helper_add(&cursor->base, &vmw_sou_cursor_plane_helper_funcs); 864 865 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs, 866 DRM_MODE_CONNECTOR_VIRTUAL); 867 if (ret) { 868 DRM_ERROR("Failed to initialize connector\n"); 869 goto err_free; 870 } 871 872 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs); 873 connector->status = vmw_du_connector_detect(connector, true); 874 875 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs, 876 DRM_MODE_ENCODER_VIRTUAL, NULL); 877 if (ret) { 878 DRM_ERROR("Failed to initialize encoder\n"); 879 goto err_free_connector; 880 } 881 882 (void) drm_connector_attach_encoder(connector, encoder); 883 encoder->possible_crtcs = (1 << unit); 884 encoder->possible_clones = 0; 885 886 ret = drm_connector_register(connector); 887 if (ret) { 888 DRM_ERROR("Failed to register connector\n"); 889 goto err_free_encoder; 890 } 891 892 ret = drm_crtc_init_with_planes(dev, crtc, primary, 893 &cursor->base, 894 &vmw_screen_object_crtc_funcs, NULL); 895 if (ret) { 896 DRM_ERROR("Failed to initialize CRTC\n"); 897 goto err_free_unregister; 898 } 899 900 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs); 901 902 drm_mode_crtc_set_gamma_size(crtc, 256); 903 904 drm_object_attach_property(&connector->base, 905 dev_priv->hotplug_mode_update_property, 1); 906 drm_object_attach_property(&connector->base, 907 dev->mode_config.suggested_x_property, 0); 908 drm_object_attach_property(&connector->base, 909 dev->mode_config.suggested_y_property, 0); 910 return 0; 911 912 err_free_unregister: 913 drm_connector_unregister(connector); 914 err_free_encoder: 915 drm_encoder_cleanup(encoder); 916 err_free_connector: 917 drm_connector_cleanup(connector); 918 err_free: 919 kfree(sou); 920 return ret; 921 } 922 923 int vmw_kms_sou_init_display(struct vmw_private *dev_priv) 924 { 925 struct drm_device *dev = &dev_priv->drm; 926 int i; 927 928 /* Screen objects won't work if GMR's aren't available */ 929 if (!dev_priv->has_gmr) 930 return -ENOSYS; 931 932 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { 933 return -ENOSYS; 934 } 935 936 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) 937 vmw_sou_init(dev_priv, i); 938 939 dev_priv->active_display_unit = vmw_du_screen_object; 940 941 drm_mode_config_reset(dev); 942 943 return 0; 944 } 945 946 static int do_bo_define_gmrfb(struct vmw_private *dev_priv, 947 struct vmw_framebuffer *framebuffer) 948 { 949 struct vmw_bo *buf = 950 container_of(framebuffer, struct vmw_framebuffer_bo, 951 base)->buffer; 952 int depth = framebuffer->base.format->depth; 953 struct { 954 uint32_t header; 955 SVGAFifoCmdDefineGMRFB body; 956 } *cmd; 957 958 /* Emulate RGBA support, contrary to svga_reg.h this is not 959 * supported by hosts. This is only a problem if we are reading 960 * this value later and expecting what we uploaded back. 961 */ 962 if (depth == 32) 963 depth = 24; 964 965 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd)); 966 if (!cmd) 967 return -ENOMEM; 968 969 cmd->header = SVGA_CMD_DEFINE_GMRFB; 970 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8; 971 cmd->body.format.colorDepth = depth; 972 cmd->body.format.reserved = 0; 973 cmd->body.bytesPerLine = framebuffer->base.pitches[0]; 974 /* Buffer is reserved in vram or GMR */ 975 vmw_bo_get_guest_ptr(&buf->tbo, &cmd->body.ptr); 976 vmw_cmd_commit(dev_priv, sizeof(*cmd)); 977 978 return 0; 979 } 980 981 /** 982 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a 983 * blit surface to screen command. 984 * 985 * @dirty: The closure structure. 986 * 987 * Fills in the missing fields in the command, and translates the cliprects 988 * to match the destination bounding box encoded. 989 */ 990 static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty) 991 { 992 struct vmw_kms_sou_surface_dirty *sdirty = 993 container_of(dirty, typeof(*sdirty), base); 994 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 995 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x; 996 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y; 997 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect); 998 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 999 int i; 1000 1001 if (!dirty->num_hits) { 1002 vmw_cmd_commit(dirty->dev_priv, 0); 1003 return; 1004 } 1005 1006 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 1007 cmd->header.size = sizeof(cmd->body) + region_size; 1008 1009 /* 1010 * Use the destination bounding box to specify destination - and 1011 * source bounding regions. 1012 */ 1013 cmd->body.destRect.left = sdirty->left; 1014 cmd->body.destRect.right = sdirty->right; 1015 cmd->body.destRect.top = sdirty->top; 1016 cmd->body.destRect.bottom = sdirty->bottom; 1017 1018 cmd->body.srcRect.left = sdirty->left + trans_x; 1019 cmd->body.srcRect.right = sdirty->right + trans_x; 1020 cmd->body.srcRect.top = sdirty->top + trans_y; 1021 cmd->body.srcRect.bottom = sdirty->bottom + trans_y; 1022 1023 cmd->body.srcImage.sid = sdirty->sid; 1024 cmd->body.destScreenId = dirty->unit->unit; 1025 1026 /* Blits are relative to the destination rect. Translate. */ 1027 for (i = 0; i < dirty->num_hits; ++i, ++blit) { 1028 blit->left -= sdirty->left; 1029 blit->right -= sdirty->left; 1030 blit->top -= sdirty->top; 1031 blit->bottom -= sdirty->top; 1032 } 1033 1034 vmw_cmd_commit(dirty->dev_priv, region_size + sizeof(*cmd)); 1035 1036 sdirty->left = sdirty->top = S32_MAX; 1037 sdirty->right = sdirty->bottom = S32_MIN; 1038 } 1039 1040 /** 1041 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect. 1042 * 1043 * @dirty: The closure structure 1044 * 1045 * Encodes a SVGASignedRect cliprect and updates the bounding box of the 1046 * BLIT_SURFACE_TO_SCREEN command. 1047 */ 1048 static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty) 1049 { 1050 struct vmw_kms_sou_surface_dirty *sdirty = 1051 container_of(dirty, typeof(*sdirty), base); 1052 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1053 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1054 1055 /* Destination rect. */ 1056 blit += dirty->num_hits; 1057 blit->left = dirty->unit_x1; 1058 blit->top = dirty->unit_y1; 1059 blit->right = dirty->unit_x2; 1060 blit->bottom = dirty->unit_y2; 1061 1062 /* Destination bounding box */ 1063 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 1064 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 1065 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 1066 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 1067 1068 dirty->num_hits++; 1069 } 1070 1071 /** 1072 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer 1073 * 1074 * @dev_priv: Pointer to the device private structure. 1075 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 1076 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 1077 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1078 * be NULL. 1079 * @srf: Pointer to surface to blit from. If NULL, the surface attached 1080 * to @framebuffer will be used. 1081 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 1082 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 1083 * @num_clips: Number of clip rects in @clips. 1084 * @inc: Increment to use when looping over @clips. 1085 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1086 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1087 * case the device has already synchronized. 1088 * @crtc: If crtc is passed, perform surface dirty on that crtc only. 1089 * 1090 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1091 * interrupted. 1092 */ 1093 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv, 1094 struct vmw_framebuffer *framebuffer, 1095 struct drm_clip_rect *clips, 1096 struct drm_vmw_rect *vclips, 1097 struct vmw_resource *srf, 1098 s32 dest_x, 1099 s32 dest_y, 1100 unsigned num_clips, int inc, 1101 struct vmw_fence_obj **out_fence, 1102 struct drm_crtc *crtc) 1103 { 1104 struct vmw_framebuffer_surface *vfbs = 1105 container_of(framebuffer, typeof(*vfbs), base); 1106 struct vmw_kms_sou_surface_dirty sdirty; 1107 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1108 int ret; 1109 1110 if (!srf) 1111 srf = &vfbs->surface->res; 1112 1113 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE, 1114 NULL, NULL); 1115 if (ret) 1116 return ret; 1117 1118 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true); 1119 if (ret) 1120 goto out_unref; 1121 1122 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit; 1123 sdirty.base.clip = vmw_sou_surface_clip; 1124 sdirty.base.dev_priv = dev_priv; 1125 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) + 1126 sizeof(SVGASignedRect) * num_clips; 1127 sdirty.base.crtc = crtc; 1128 1129 sdirty.sid = srf->id; 1130 sdirty.left = sdirty.top = S32_MAX; 1131 sdirty.right = sdirty.bottom = S32_MIN; 1132 sdirty.dst_x = dest_x; 1133 sdirty.dst_y = dest_y; 1134 1135 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1136 dest_x, dest_y, num_clips, inc, 1137 &sdirty.base); 1138 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1139 NULL); 1140 1141 return ret; 1142 1143 out_unref: 1144 vmw_validation_unref_lists(&val_ctx); 1145 return ret; 1146 } 1147 1148 /** 1149 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips. 1150 * 1151 * @dirty: The closure structure. 1152 * 1153 * Commits a previously built command buffer of readback clips. 1154 */ 1155 static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty) 1156 { 1157 if (!dirty->num_hits) { 1158 vmw_cmd_commit(dirty->dev_priv, 0); 1159 return; 1160 } 1161 1162 vmw_cmd_commit(dirty->dev_priv, 1163 sizeof(struct vmw_kms_sou_bo_blit) * 1164 dirty->num_hits); 1165 } 1166 1167 /** 1168 * vmw_sou_bo_clip - Callback to encode a readback cliprect. 1169 * 1170 * @dirty: The closure structure 1171 * 1172 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect. 1173 */ 1174 static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty) 1175 { 1176 struct vmw_kms_sou_bo_blit *blit = dirty->cmd; 1177 1178 blit += dirty->num_hits; 1179 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 1180 blit->body.destScreenId = dirty->unit->unit; 1181 blit->body.srcOrigin.x = dirty->fb_x; 1182 blit->body.srcOrigin.y = dirty->fb_y; 1183 blit->body.destRect.left = dirty->unit_x1; 1184 blit->body.destRect.top = dirty->unit_y1; 1185 blit->body.destRect.right = dirty->unit_x2; 1186 blit->body.destRect.bottom = dirty->unit_y2; 1187 dirty->num_hits++; 1188 } 1189 1190 /** 1191 * vmw_kms_sou_do_bo_dirty - Dirty part of a buffer-object backed framebuffer 1192 * 1193 * @dev_priv: Pointer to the device private structure. 1194 * @framebuffer: Pointer to the buffer-object backed framebuffer. 1195 * @clips: Array of clip rects. 1196 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1197 * be NULL. 1198 * @num_clips: Number of clip rects in @clips. 1199 * @increment: Increment to use when looping over @clips. 1200 * @interruptible: Whether to perform waits interruptible if possible. 1201 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1202 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1203 * case the device has already synchronized. 1204 * @crtc: If crtc is passed, perform bo dirty on that crtc only. 1205 * 1206 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1207 * interrupted. 1208 */ 1209 int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv, 1210 struct vmw_framebuffer *framebuffer, 1211 struct drm_clip_rect *clips, 1212 struct drm_vmw_rect *vclips, 1213 unsigned num_clips, int increment, 1214 bool interruptible, 1215 struct vmw_fence_obj **out_fence, 1216 struct drm_crtc *crtc) 1217 { 1218 struct vmw_bo *buf = 1219 container_of(framebuffer, struct vmw_framebuffer_bo, 1220 base)->buffer; 1221 struct vmw_kms_dirty dirty; 1222 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1223 int ret; 1224 1225 vmw_bo_placement_set(buf, VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM, 1226 VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM); 1227 ret = vmw_validation_add_bo(&val_ctx, buf); 1228 if (ret) 1229 return ret; 1230 1231 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible); 1232 if (ret) 1233 goto out_unref; 1234 1235 ret = do_bo_define_gmrfb(dev_priv, framebuffer); 1236 if (unlikely(ret != 0)) 1237 goto out_revert; 1238 1239 dirty.crtc = crtc; 1240 dirty.fifo_commit = vmw_sou_bo_fifo_commit; 1241 dirty.clip = vmw_sou_bo_clip; 1242 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) * 1243 num_clips; 1244 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1245 0, 0, num_clips, increment, &dirty); 1246 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1247 NULL); 1248 1249 return ret; 1250 1251 out_revert: 1252 vmw_validation_revert(&val_ctx); 1253 out_unref: 1254 vmw_validation_unref_lists(&val_ctx); 1255 1256 return ret; 1257 } 1258 1259 1260 /** 1261 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips. 1262 * 1263 * @dirty: The closure structure. 1264 * 1265 * Commits a previously built command buffer of readback clips. 1266 */ 1267 static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty) 1268 { 1269 if (!dirty->num_hits) { 1270 vmw_cmd_commit(dirty->dev_priv, 0); 1271 return; 1272 } 1273 1274 vmw_cmd_commit(dirty->dev_priv, 1275 sizeof(struct vmw_kms_sou_readback_blit) * 1276 dirty->num_hits); 1277 } 1278 1279 /** 1280 * vmw_sou_readback_clip - Callback to encode a readback cliprect. 1281 * 1282 * @dirty: The closure structure 1283 * 1284 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect. 1285 */ 1286 static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty) 1287 { 1288 struct vmw_kms_sou_readback_blit *blit = dirty->cmd; 1289 1290 blit += dirty->num_hits; 1291 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; 1292 blit->body.srcScreenId = dirty->unit->unit; 1293 blit->body.destOrigin.x = dirty->fb_x; 1294 blit->body.destOrigin.y = dirty->fb_y; 1295 blit->body.srcRect.left = dirty->unit_x1; 1296 blit->body.srcRect.top = dirty->unit_y1; 1297 blit->body.srcRect.right = dirty->unit_x2; 1298 blit->body.srcRect.bottom = dirty->unit_y2; 1299 dirty->num_hits++; 1300 } 1301 1302 /** 1303 * vmw_kms_sou_readback - Perform a readback from the screen object system to 1304 * a buffer-object backed framebuffer. 1305 * 1306 * @dev_priv: Pointer to the device private structure. 1307 * @file_priv: Pointer to a struct drm_file identifying the caller. 1308 * Must be set to NULL if @user_fence_rep is NULL. 1309 * @vfb: Pointer to the buffer-object backed framebuffer. 1310 * @user_fence_rep: User-space provided structure for fence information. 1311 * Must be set to non-NULL if @file_priv is non-NULL. 1312 * @vclips: Array of clip rects. 1313 * @num_clips: Number of clip rects in @vclips. 1314 * @crtc: If crtc is passed, readback on that crtc only. 1315 * 1316 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1317 * interrupted. 1318 */ 1319 int vmw_kms_sou_readback(struct vmw_private *dev_priv, 1320 struct drm_file *file_priv, 1321 struct vmw_framebuffer *vfb, 1322 struct drm_vmw_fence_rep __user *user_fence_rep, 1323 struct drm_vmw_rect *vclips, 1324 uint32_t num_clips, 1325 struct drm_crtc *crtc) 1326 { 1327 struct vmw_bo *buf = 1328 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer; 1329 struct vmw_kms_dirty dirty; 1330 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1331 int ret; 1332 1333 vmw_bo_placement_set(buf, VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM, 1334 VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM); 1335 ret = vmw_validation_add_bo(&val_ctx, buf); 1336 if (ret) 1337 return ret; 1338 1339 ret = vmw_validation_prepare(&val_ctx, NULL, true); 1340 if (ret) 1341 goto out_unref; 1342 1343 ret = do_bo_define_gmrfb(dev_priv, vfb); 1344 if (unlikely(ret != 0)) 1345 goto out_revert; 1346 1347 dirty.crtc = crtc; 1348 dirty.fifo_commit = vmw_sou_readback_fifo_commit; 1349 dirty.clip = vmw_sou_readback_clip; 1350 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) * 1351 num_clips; 1352 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips, 1353 0, 0, num_clips, 1, &dirty); 1354 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL, 1355 user_fence_rep); 1356 1357 return ret; 1358 1359 out_revert: 1360 vmw_validation_revert(&val_ctx); 1361 out_unref: 1362 vmw_validation_unref_lists(&val_ctx); 1363 1364 return ret; 1365 } 1366