1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /************************************************************************** 3 * 4 * Copyright 2011-2015 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 <drm/drm_plane_helper.h> 30 #include <drm/drm_atomic.h> 31 #include <drm/drm_atomic_helper.h> 32 #include <drm/drm_damage_helper.h> 33 34 35 #define vmw_crtc_to_sou(x) \ 36 container_of(x, struct vmw_screen_object_unit, base.crtc) 37 #define vmw_encoder_to_sou(x) \ 38 container_of(x, struct vmw_screen_object_unit, base.encoder) 39 #define vmw_connector_to_sou(x) \ 40 container_of(x, struct vmw_screen_object_unit, base.connector) 41 42 /** 43 * struct vmw_kms_sou_surface_dirty - Closure structure for 44 * blit surface to screen command. 45 * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). 46 * @left: Left side of bounding box. 47 * @right: Right side of bounding box. 48 * @top: Top side of bounding box. 49 * @bottom: Bottom side of bounding box. 50 * @dst_x: Difference between source clip rects and framebuffer coordinates. 51 * @dst_y: Difference between source clip rects and framebuffer coordinates. 52 * @sid: Surface id of surface to copy from. 53 */ 54 struct vmw_kms_sou_surface_dirty { 55 struct vmw_kms_dirty base; 56 s32 left, right, top, bottom; 57 s32 dst_x, dst_y; 58 u32 sid; 59 }; 60 61 /* 62 * SVGA commands that are used by this code. Please see the device headers 63 * for explanation. 64 */ 65 struct vmw_kms_sou_readback_blit { 66 uint32 header; 67 SVGAFifoCmdBlitScreenToGMRFB body; 68 }; 69 70 struct vmw_kms_sou_bo_blit { 71 uint32 header; 72 SVGAFifoCmdBlitGMRFBToScreen body; 73 }; 74 75 struct vmw_kms_sou_dirty_cmd { 76 SVGA3dCmdHeader header; 77 SVGA3dCmdBlitSurfaceToScreen body; 78 }; 79 80 struct vmw_kms_sou_define_gmrfb { 81 uint32_t header; 82 SVGAFifoCmdDefineGMRFB body; 83 }; 84 85 /** 86 * Display unit using screen objects. 87 */ 88 struct vmw_screen_object_unit { 89 struct vmw_display_unit base; 90 91 unsigned long buffer_size; /**< Size of allocated buffer */ 92 struct vmw_buffer_object *buffer; /**< Backing store buffer */ 93 94 bool defined; 95 }; 96 97 static void vmw_sou_destroy(struct vmw_screen_object_unit *sou) 98 { 99 vmw_du_cleanup(&sou->base); 100 kfree(sou); 101 } 102 103 104 /* 105 * Screen Object Display Unit CRTC functions 106 */ 107 108 static void vmw_sou_crtc_destroy(struct drm_crtc *crtc) 109 { 110 vmw_sou_destroy(vmw_crtc_to_sou(crtc)); 111 } 112 113 /** 114 * Send the fifo command to create a screen. 115 */ 116 static int vmw_sou_fifo_create(struct vmw_private *dev_priv, 117 struct vmw_screen_object_unit *sou, 118 int x, int y, 119 struct drm_display_mode *mode) 120 { 121 size_t fifo_size; 122 123 struct { 124 struct { 125 uint32_t cmdType; 126 } header; 127 SVGAScreenObject obj; 128 } *cmd; 129 130 BUG_ON(!sou->buffer); 131 132 fifo_size = sizeof(*cmd); 133 cmd = VMW_FIFO_RESERVE(dev_priv, fifo_size); 134 if (unlikely(cmd == NULL)) 135 return -ENOMEM; 136 137 memset(cmd, 0, fifo_size); 138 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN; 139 cmd->obj.structSize = sizeof(SVGAScreenObject); 140 cmd->obj.id = sou->base.unit; 141 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT | 142 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0); 143 cmd->obj.size.width = mode->hdisplay; 144 cmd->obj.size.height = mode->vdisplay; 145 cmd->obj.root.x = x; 146 cmd->obj.root.y = y; 147 sou->base.set_gui_x = cmd->obj.root.x; 148 sou->base.set_gui_y = cmd->obj.root.y; 149 150 /* Ok to assume that buffer is pinned in vram */ 151 vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr); 152 cmd->obj.backingStore.pitch = mode->hdisplay * 4; 153 154 vmw_fifo_commit(dev_priv, fifo_size); 155 156 sou->defined = true; 157 158 return 0; 159 } 160 161 /** 162 * Send the fifo command to destroy a screen. 163 */ 164 static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv, 165 struct vmw_screen_object_unit *sou) 166 { 167 size_t fifo_size; 168 int ret; 169 170 struct { 171 struct { 172 uint32_t cmdType; 173 } header; 174 SVGAFifoCmdDestroyScreen body; 175 } *cmd; 176 177 /* no need to do anything */ 178 if (unlikely(!sou->defined)) 179 return 0; 180 181 fifo_size = sizeof(*cmd); 182 cmd = VMW_FIFO_RESERVE(dev_priv, fifo_size); 183 if (unlikely(cmd == NULL)) 184 return -ENOMEM; 185 186 memset(cmd, 0, fifo_size); 187 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN; 188 cmd->body.screenId = sou->base.unit; 189 190 vmw_fifo_commit(dev_priv, fifo_size); 191 192 /* Force sync */ 193 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); 194 if (unlikely(ret != 0)) 195 DRM_ERROR("Failed to sync with HW"); 196 else 197 sou->defined = false; 198 199 return ret; 200 } 201 202 /** 203 * vmw_sou_crtc_mode_set_nofb - Create new screen 204 * 205 * @crtc: CRTC associated with the new screen 206 * 207 * This function creates/destroys a screen. This function cannot fail, so if 208 * somehow we run into a failure, just do the best we can to get out. 209 */ 210 static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc) 211 { 212 struct vmw_private *dev_priv; 213 struct vmw_screen_object_unit *sou; 214 struct vmw_framebuffer *vfb; 215 struct drm_framebuffer *fb; 216 struct drm_plane_state *ps; 217 struct vmw_plane_state *vps; 218 int ret; 219 220 sou = vmw_crtc_to_sou(crtc); 221 dev_priv = vmw_priv(crtc->dev); 222 ps = crtc->primary->state; 223 fb = ps->fb; 224 vps = vmw_plane_state_to_vps(ps); 225 226 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 227 228 if (sou->defined) { 229 ret = vmw_sou_fifo_destroy(dev_priv, sou); 230 if (ret) { 231 DRM_ERROR("Failed to destroy Screen Object\n"); 232 return; 233 } 234 } 235 236 if (vfb) { 237 struct drm_connector_state *conn_state; 238 struct vmw_connector_state *vmw_conn_state; 239 int x, y; 240 241 sou->buffer = vps->bo; 242 sou->buffer_size = vps->bo_size; 243 244 conn_state = sou->base.connector.state; 245 vmw_conn_state = vmw_connector_state_to_vcs(conn_state); 246 247 x = vmw_conn_state->gui_x; 248 y = vmw_conn_state->gui_y; 249 250 ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode); 251 if (ret) 252 DRM_ERROR("Failed to define Screen Object %dx%d\n", 253 crtc->x, crtc->y); 254 255 } else { 256 sou->buffer = NULL; 257 sou->buffer_size = 0; 258 } 259 } 260 261 /** 262 * vmw_sou_crtc_helper_prepare - Noop 263 * 264 * @crtc: CRTC associated with the new screen 265 * 266 * Prepares the CRTC for a mode set, but we don't need to do anything here. 267 */ 268 static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc) 269 { 270 } 271 272 /** 273 * vmw_sou_crtc_atomic_enable - Noop 274 * 275 * @crtc: CRTC associated with the new screen 276 * 277 * This is called after a mode set has been completed. 278 */ 279 static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc, 280 struct drm_crtc_state *old_state) 281 { 282 } 283 284 /** 285 * vmw_sou_crtc_atomic_disable - Turns off CRTC 286 * 287 * @crtc: CRTC to be turned off 288 */ 289 static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc, 290 struct drm_crtc_state *old_state) 291 { 292 struct vmw_private *dev_priv; 293 struct vmw_screen_object_unit *sou; 294 int ret; 295 296 297 if (!crtc) { 298 DRM_ERROR("CRTC is NULL\n"); 299 return; 300 } 301 302 sou = vmw_crtc_to_sou(crtc); 303 dev_priv = vmw_priv(crtc->dev); 304 305 if (sou->defined) { 306 ret = vmw_sou_fifo_destroy(dev_priv, sou); 307 if (ret) 308 DRM_ERROR("Failed to destroy Screen Object\n"); 309 } 310 } 311 312 static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = { 313 .gamma_set = vmw_du_crtc_gamma_set, 314 .destroy = vmw_sou_crtc_destroy, 315 .reset = vmw_du_crtc_reset, 316 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 317 .atomic_destroy_state = vmw_du_crtc_destroy_state, 318 .set_config = drm_atomic_helper_set_config, 319 .page_flip = drm_atomic_helper_page_flip, 320 }; 321 322 /* 323 * Screen Object Display Unit encoder functions 324 */ 325 326 static void vmw_sou_encoder_destroy(struct drm_encoder *encoder) 327 { 328 vmw_sou_destroy(vmw_encoder_to_sou(encoder)); 329 } 330 331 static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = { 332 .destroy = vmw_sou_encoder_destroy, 333 }; 334 335 /* 336 * Screen Object Display Unit connector functions 337 */ 338 339 static void vmw_sou_connector_destroy(struct drm_connector *connector) 340 { 341 vmw_sou_destroy(vmw_connector_to_sou(connector)); 342 } 343 344 static const struct drm_connector_funcs vmw_sou_connector_funcs = { 345 .dpms = vmw_du_connector_dpms, 346 .detect = vmw_du_connector_detect, 347 .fill_modes = vmw_du_connector_fill_modes, 348 .destroy = vmw_sou_connector_destroy, 349 .reset = vmw_du_connector_reset, 350 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 351 .atomic_destroy_state = vmw_du_connector_destroy_state, 352 }; 353 354 355 static const struct 356 drm_connector_helper_funcs vmw_sou_connector_helper_funcs = { 357 }; 358 359 360 361 /* 362 * Screen Object Display Plane Functions 363 */ 364 365 /** 366 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer 367 * 368 * @plane: display plane 369 * @old_state: Contains the FB to clean up 370 * 371 * Unpins the display surface 372 * 373 * Returns 0 on success 374 */ 375 static void 376 vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane, 377 struct drm_plane_state *old_state) 378 { 379 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 380 struct drm_crtc *crtc = plane->state->crtc ? 381 plane->state->crtc : old_state->crtc; 382 383 if (vps->bo) 384 vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false); 385 vmw_bo_unreference(&vps->bo); 386 vps->bo_size = 0; 387 388 vmw_du_plane_cleanup_fb(plane, old_state); 389 } 390 391 392 /** 393 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer 394 * 395 * @plane: display plane 396 * @new_state: info on the new plane state, including the FB 397 * 398 * The SOU backing buffer is our equivalent of the display plane. 399 * 400 * Returns 0 on success 401 */ 402 static int 403 vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane, 404 struct drm_plane_state *new_state) 405 { 406 struct drm_framebuffer *new_fb = new_state->fb; 407 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc; 408 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 409 struct vmw_private *dev_priv; 410 size_t size; 411 int ret; 412 413 414 if (!new_fb) { 415 vmw_bo_unreference(&vps->bo); 416 vps->bo_size = 0; 417 418 return 0; 419 } 420 421 size = new_state->crtc_w * new_state->crtc_h * 4; 422 dev_priv = vmw_priv(crtc->dev); 423 424 if (vps->bo) { 425 if (vps->bo_size == size) { 426 /* 427 * Note that this might temporarily up the pin-count 428 * to 2, until cleanup_fb() is called. 429 */ 430 return vmw_bo_pin_in_vram(dev_priv, vps->bo, 431 true); 432 } 433 434 vmw_bo_unreference(&vps->bo); 435 vps->bo_size = 0; 436 } 437 438 vps->bo = kzalloc(sizeof(*vps->bo), GFP_KERNEL); 439 if (!vps->bo) 440 return -ENOMEM; 441 442 vmw_svga_enable(dev_priv); 443 444 /* After we have alloced the backing store might not be able to 445 * resume the overlays, this is preferred to failing to alloc. 446 */ 447 vmw_overlay_pause_all(dev_priv); 448 ret = vmw_bo_init(dev_priv, vps->bo, size, 449 &vmw_vram_ne_placement, 450 false, &vmw_bo_bo_free); 451 vmw_overlay_resume_all(dev_priv); 452 if (ret) { 453 vps->bo = NULL; /* vmw_bo_init frees on error */ 454 return ret; 455 } 456 457 vps->bo_size = size; 458 459 /* 460 * TTM already thinks the buffer is pinned, but make sure the 461 * pin_count is upped. 462 */ 463 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true); 464 } 465 466 static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update, 467 uint32_t num_hits) 468 { 469 return sizeof(struct vmw_kms_sou_define_gmrfb) + 470 sizeof(struct vmw_kms_sou_bo_blit) * num_hits; 471 } 472 473 static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update, 474 void *cmd) 475 { 476 struct vmw_framebuffer_bo *vfbbo = 477 container_of(update->vfb, typeof(*vfbbo), base); 478 struct vmw_kms_sou_define_gmrfb *gmr = cmd; 479 int depth = update->vfb->base.format->depth; 480 481 /* Emulate RGBA support, contrary to svga_reg.h this is not 482 * supported by hosts. This is only a problem if we are reading 483 * this value later and expecting what we uploaded back. 484 */ 485 if (depth == 32) 486 depth = 24; 487 488 gmr->header = SVGA_CMD_DEFINE_GMRFB; 489 490 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8; 491 gmr->body.format.colorDepth = depth; 492 gmr->body.format.reserved = 0; 493 gmr->body.bytesPerLine = update->vfb->base.pitches[0]; 494 vmw_bo_get_guest_ptr(&vfbbo->buffer->base, &gmr->body.ptr); 495 496 return sizeof(*gmr); 497 } 498 499 static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update, 500 void *cmd, struct drm_rect *clip, 501 uint32_t fb_x, uint32_t fb_y) 502 { 503 struct vmw_kms_sou_bo_blit *blit = cmd; 504 505 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 506 blit->body.destScreenId = update->du->unit; 507 blit->body.srcOrigin.x = fb_x; 508 blit->body.srcOrigin.y = fb_y; 509 blit->body.destRect.left = clip->x1; 510 blit->body.destRect.top = clip->y1; 511 blit->body.destRect.right = clip->x2; 512 blit->body.destRect.bottom = clip->y2; 513 514 return sizeof(*blit); 515 } 516 517 static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update, 518 void *cmd, struct drm_rect *bb) 519 { 520 return 0; 521 } 522 523 /** 524 * vmw_sou_plane_update_bo - Update display unit for bo backed fb. 525 * @dev_priv: Device private. 526 * @plane: Plane state. 527 * @old_state: Old plane state. 528 * @vfb: Framebuffer which is blitted to display unit. 529 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 530 * The returned fence pointer may be NULL in which case the device 531 * has already synchronized. 532 * 533 * Return: 0 on success or a negative error code on failure. 534 */ 535 static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv, 536 struct drm_plane *plane, 537 struct drm_plane_state *old_state, 538 struct vmw_framebuffer *vfb, 539 struct vmw_fence_obj **out_fence) 540 { 541 struct vmw_du_update_plane_buffer bo_update; 542 543 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer)); 544 bo_update.base.plane = plane; 545 bo_update.base.old_state = old_state; 546 bo_update.base.dev_priv = dev_priv; 547 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc); 548 bo_update.base.vfb = vfb; 549 bo_update.base.out_fence = out_fence; 550 bo_update.base.mutex = NULL; 551 bo_update.base.cpu_blit = false; 552 bo_update.base.intr = true; 553 554 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size; 555 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb; 556 bo_update.base.clip = vmw_sou_bo_populate_clip; 557 bo_update.base.post_clip = vmw_stud_bo_post_clip; 558 559 return vmw_du_helper_plane_update(&bo_update.base); 560 } 561 562 static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update, 563 uint32_t num_hits) 564 { 565 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) * 566 num_hits; 567 } 568 569 static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update, 570 void *cmd) 571 { 572 struct vmw_du_update_plane_surface *srf_update; 573 574 srf_update = container_of(update, typeof(*srf_update), base); 575 576 /* 577 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that 578 * its bounding box is filled before iterating over all the clips. So 579 * store the FIFO start address and revisit to fill the details. 580 */ 581 srf_update->cmd_start = cmd; 582 583 return 0; 584 } 585 586 static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update, 587 void *cmd, uint32_t num_hits) 588 { 589 struct vmw_kms_sou_dirty_cmd *blit = cmd; 590 struct vmw_framebuffer_surface *vfbs; 591 592 vfbs = container_of(update->vfb, typeof(*vfbs), base); 593 594 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 595 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) * 596 num_hits; 597 598 blit->body.srcImage.sid = vfbs->surface->res.id; 599 blit->body.destScreenId = update->du->unit; 600 601 /* Update the source and destination bounding box later in post_clip */ 602 blit->body.srcRect.left = 0; 603 blit->body.srcRect.top = 0; 604 blit->body.srcRect.right = 0; 605 blit->body.srcRect.bottom = 0; 606 607 blit->body.destRect.left = 0; 608 blit->body.destRect.top = 0; 609 blit->body.destRect.right = 0; 610 blit->body.destRect.bottom = 0; 611 612 return sizeof(*blit); 613 } 614 615 static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update, 616 void *cmd, struct drm_rect *clip, 617 uint32_t src_x, uint32_t src_y) 618 { 619 SVGASignedRect *rect = cmd; 620 621 /* 622 * rects are relative to dest bounding box rect on screen object, so 623 * translate to it later in post_clip 624 */ 625 rect->left = clip->x1; 626 rect->top = clip->y1; 627 rect->right = clip->x2; 628 rect->bottom = clip->y2; 629 630 return sizeof(*rect); 631 } 632 633 static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update, 634 void *cmd, struct drm_rect *bb) 635 { 636 struct vmw_du_update_plane_surface *srf_update; 637 struct drm_plane_state *state = update->plane->state; 638 struct drm_rect src_bb; 639 struct vmw_kms_sou_dirty_cmd *blit; 640 SVGASignedRect *rect; 641 uint32_t num_hits; 642 int translate_src_x; 643 int translate_src_y; 644 int i; 645 646 srf_update = container_of(update, typeof(*srf_update), base); 647 648 blit = srf_update->cmd_start; 649 rect = (SVGASignedRect *)&blit[1]; 650 651 num_hits = (blit->header.size - sizeof(blit->body))/ 652 sizeof(SVGASignedRect); 653 654 src_bb = *bb; 655 656 /* To translate bb back to fb src coord */ 657 translate_src_x = (state->src_x >> 16) - state->crtc_x; 658 translate_src_y = (state->src_y >> 16) - state->crtc_y; 659 660 drm_rect_translate(&src_bb, translate_src_x, translate_src_y); 661 662 blit->body.srcRect.left = src_bb.x1; 663 blit->body.srcRect.top = src_bb.y1; 664 blit->body.srcRect.right = src_bb.x2; 665 blit->body.srcRect.bottom = src_bb.y2; 666 667 blit->body.destRect.left = bb->x1; 668 blit->body.destRect.top = bb->y1; 669 blit->body.destRect.right = bb->x2; 670 blit->body.destRect.bottom = bb->y2; 671 672 /* rects are relative to dest bb rect */ 673 for (i = 0; i < num_hits; i++) { 674 rect->left -= bb->x1; 675 rect->top -= bb->y1; 676 rect->right -= bb->x1; 677 rect->bottom -= bb->y1; 678 rect++; 679 } 680 681 return 0; 682 } 683 684 /** 685 * vmw_sou_plane_update_surface - Update display unit for surface backed fb. 686 * @dev_priv: Device private. 687 * @plane: Plane state. 688 * @old_state: Old plane state. 689 * @vfb: Framebuffer which is blitted to display unit 690 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 691 * The returned fence pointer may be NULL in which case the device 692 * has already synchronized. 693 * 694 * Return: 0 on success or a negative error code on failure. 695 */ 696 static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv, 697 struct drm_plane *plane, 698 struct drm_plane_state *old_state, 699 struct vmw_framebuffer *vfb, 700 struct vmw_fence_obj **out_fence) 701 { 702 struct vmw_du_update_plane_surface srf_update; 703 704 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface)); 705 srf_update.base.plane = plane; 706 srf_update.base.old_state = old_state; 707 srf_update.base.dev_priv = dev_priv; 708 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc); 709 srf_update.base.vfb = vfb; 710 srf_update.base.out_fence = out_fence; 711 srf_update.base.mutex = &dev_priv->cmdbuf_mutex; 712 srf_update.base.cpu_blit = false; 713 srf_update.base.intr = true; 714 715 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size; 716 srf_update.base.post_prepare = vmw_sou_surface_post_prepare; 717 srf_update.base.pre_clip = vmw_sou_surface_pre_clip; 718 srf_update.base.clip = vmw_sou_surface_clip_rect; 719 srf_update.base.post_clip = vmw_sou_surface_post_clip; 720 721 return vmw_du_helper_plane_update(&srf_update.base); 722 } 723 724 static void 725 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane, 726 struct drm_plane_state *old_state) 727 { 728 struct drm_crtc *crtc = plane->state->crtc; 729 struct drm_pending_vblank_event *event = NULL; 730 struct vmw_fence_obj *fence = NULL; 731 int ret; 732 733 /* In case of device error, maintain consistent atomic state */ 734 if (crtc && plane->state->fb) { 735 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 736 struct vmw_framebuffer *vfb = 737 vmw_framebuffer_to_vfb(plane->state->fb); 738 739 if (vfb->bo) 740 ret = vmw_sou_plane_update_bo(dev_priv, plane, 741 old_state, vfb, &fence); 742 else 743 ret = vmw_sou_plane_update_surface(dev_priv, plane, 744 old_state, vfb, 745 &fence); 746 if (ret != 0) 747 DRM_ERROR("Failed to update screen.\n"); 748 } else { 749 /* Do nothing when fb and crtc is NULL (blank crtc) */ 750 return; 751 } 752 753 /* For error case vblank event is send from vmw_du_crtc_atomic_flush */ 754 event = crtc->state->event; 755 if (event && fence) { 756 struct drm_file *file_priv = event->base.file_priv; 757 758 ret = vmw_event_fence_action_queue(file_priv, 759 fence, 760 &event->base, 761 &event->event.vbl.tv_sec, 762 &event->event.vbl.tv_usec, 763 true); 764 765 if (unlikely(ret != 0)) 766 DRM_ERROR("Failed to queue event on fence.\n"); 767 else 768 crtc->state->event = NULL; 769 } 770 771 if (fence) 772 vmw_fence_obj_unreference(&fence); 773 } 774 775 776 static const struct drm_plane_funcs vmw_sou_plane_funcs = { 777 .update_plane = drm_atomic_helper_update_plane, 778 .disable_plane = drm_atomic_helper_disable_plane, 779 .destroy = vmw_du_primary_plane_destroy, 780 .reset = vmw_du_plane_reset, 781 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 782 .atomic_destroy_state = vmw_du_plane_destroy_state, 783 }; 784 785 static const struct drm_plane_funcs vmw_sou_cursor_funcs = { 786 .update_plane = drm_atomic_helper_update_plane, 787 .disable_plane = drm_atomic_helper_disable_plane, 788 .destroy = vmw_du_cursor_plane_destroy, 789 .reset = vmw_du_plane_reset, 790 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 791 .atomic_destroy_state = vmw_du_plane_destroy_state, 792 }; 793 794 /* 795 * Atomic Helpers 796 */ 797 static const struct 798 drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = { 799 .atomic_check = vmw_du_cursor_plane_atomic_check, 800 .atomic_update = vmw_du_cursor_plane_atomic_update, 801 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 802 .cleanup_fb = vmw_du_plane_cleanup_fb, 803 }; 804 805 static const struct 806 drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = { 807 .atomic_check = vmw_du_primary_plane_atomic_check, 808 .atomic_update = vmw_sou_primary_plane_atomic_update, 809 .prepare_fb = vmw_sou_primary_plane_prepare_fb, 810 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb, 811 }; 812 813 static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = { 814 .prepare = vmw_sou_crtc_helper_prepare, 815 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb, 816 .atomic_check = vmw_du_crtc_atomic_check, 817 .atomic_begin = vmw_du_crtc_atomic_begin, 818 .atomic_flush = vmw_du_crtc_atomic_flush, 819 .atomic_enable = vmw_sou_crtc_atomic_enable, 820 .atomic_disable = vmw_sou_crtc_atomic_disable, 821 }; 822 823 824 static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) 825 { 826 struct vmw_screen_object_unit *sou; 827 struct drm_device *dev = dev_priv->dev; 828 struct drm_connector *connector; 829 struct drm_encoder *encoder; 830 struct drm_plane *primary, *cursor; 831 struct drm_crtc *crtc; 832 int ret; 833 834 sou = kzalloc(sizeof(*sou), GFP_KERNEL); 835 if (!sou) 836 return -ENOMEM; 837 838 sou->base.unit = unit; 839 crtc = &sou->base.crtc; 840 encoder = &sou->base.encoder; 841 connector = &sou->base.connector; 842 primary = &sou->base.primary; 843 cursor = &sou->base.cursor; 844 845 sou->base.pref_active = (unit == 0); 846 sou->base.pref_width = dev_priv->initial_width; 847 sou->base.pref_height = dev_priv->initial_height; 848 sou->base.pref_mode = NULL; 849 850 /* 851 * Remove this after enabling atomic because property values can 852 * only exist in a state object 853 */ 854 sou->base.is_implicit = false; 855 856 /* Initialize primary plane */ 857 vmw_du_plane_reset(primary); 858 859 ret = drm_universal_plane_init(dev, &sou->base.primary, 860 0, &vmw_sou_plane_funcs, 861 vmw_primary_plane_formats, 862 ARRAY_SIZE(vmw_primary_plane_formats), 863 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 864 if (ret) { 865 DRM_ERROR("Failed to initialize primary plane"); 866 goto err_free; 867 } 868 869 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs); 870 drm_plane_enable_fb_damage_clips(primary); 871 872 /* Initialize cursor plane */ 873 vmw_du_plane_reset(cursor); 874 875 ret = drm_universal_plane_init(dev, &sou->base.cursor, 876 0, &vmw_sou_cursor_funcs, 877 vmw_cursor_plane_formats, 878 ARRAY_SIZE(vmw_cursor_plane_formats), 879 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 880 if (ret) { 881 DRM_ERROR("Failed to initialize cursor plane"); 882 drm_plane_cleanup(&sou->base.primary); 883 goto err_free; 884 } 885 886 drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs); 887 888 vmw_du_connector_reset(connector); 889 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs, 890 DRM_MODE_CONNECTOR_VIRTUAL); 891 if (ret) { 892 DRM_ERROR("Failed to initialize connector\n"); 893 goto err_free; 894 } 895 896 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs); 897 connector->status = vmw_du_connector_detect(connector, true); 898 899 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs, 900 DRM_MODE_ENCODER_VIRTUAL, NULL); 901 if (ret) { 902 DRM_ERROR("Failed to initialize encoder\n"); 903 goto err_free_connector; 904 } 905 906 (void) drm_connector_attach_encoder(connector, encoder); 907 encoder->possible_crtcs = (1 << unit); 908 encoder->possible_clones = 0; 909 910 ret = drm_connector_register(connector); 911 if (ret) { 912 DRM_ERROR("Failed to register connector\n"); 913 goto err_free_encoder; 914 } 915 916 917 vmw_du_crtc_reset(crtc); 918 ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary, 919 &sou->base.cursor, 920 &vmw_screen_object_crtc_funcs, NULL); 921 if (ret) { 922 DRM_ERROR("Failed to initialize CRTC\n"); 923 goto err_free_unregister; 924 } 925 926 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs); 927 928 drm_mode_crtc_set_gamma_size(crtc, 256); 929 930 drm_object_attach_property(&connector->base, 931 dev_priv->hotplug_mode_update_property, 1); 932 drm_object_attach_property(&connector->base, 933 dev->mode_config.suggested_x_property, 0); 934 drm_object_attach_property(&connector->base, 935 dev->mode_config.suggested_y_property, 0); 936 return 0; 937 938 err_free_unregister: 939 drm_connector_unregister(connector); 940 err_free_encoder: 941 drm_encoder_cleanup(encoder); 942 err_free_connector: 943 drm_connector_cleanup(connector); 944 err_free: 945 kfree(sou); 946 return ret; 947 } 948 949 int vmw_kms_sou_init_display(struct vmw_private *dev_priv) 950 { 951 struct drm_device *dev = dev_priv->dev; 952 int i, ret; 953 954 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { 955 DRM_INFO("Not using screen objects," 956 " missing cap SCREEN_OBJECT_2\n"); 957 return -ENOSYS; 958 } 959 960 ret = -ENOMEM; 961 962 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 963 if (unlikely(ret != 0)) 964 return ret; 965 966 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) 967 vmw_sou_init(dev_priv, i); 968 969 dev_priv->active_display_unit = vmw_du_screen_object; 970 971 DRM_INFO("Screen Objects Display Unit initialized\n"); 972 973 return 0; 974 } 975 976 static int do_bo_define_gmrfb(struct vmw_private *dev_priv, 977 struct vmw_framebuffer *framebuffer) 978 { 979 struct vmw_buffer_object *buf = 980 container_of(framebuffer, struct vmw_framebuffer_bo, 981 base)->buffer; 982 int depth = framebuffer->base.format->depth; 983 struct { 984 uint32_t header; 985 SVGAFifoCmdDefineGMRFB body; 986 } *cmd; 987 988 /* Emulate RGBA support, contrary to svga_reg.h this is not 989 * supported by hosts. This is only a problem if we are reading 990 * this value later and expecting what we uploaded back. 991 */ 992 if (depth == 32) 993 depth = 24; 994 995 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd)); 996 if (!cmd) 997 return -ENOMEM; 998 999 cmd->header = SVGA_CMD_DEFINE_GMRFB; 1000 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8; 1001 cmd->body.format.colorDepth = depth; 1002 cmd->body.format.reserved = 0; 1003 cmd->body.bytesPerLine = framebuffer->base.pitches[0]; 1004 /* Buffer is reserved in vram or GMR */ 1005 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr); 1006 vmw_fifo_commit(dev_priv, sizeof(*cmd)); 1007 1008 return 0; 1009 } 1010 1011 /** 1012 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a 1013 * blit surface to screen command. 1014 * 1015 * @dirty: The closure structure. 1016 * 1017 * Fills in the missing fields in the command, and translates the cliprects 1018 * to match the destination bounding box encoded. 1019 */ 1020 static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty) 1021 { 1022 struct vmw_kms_sou_surface_dirty *sdirty = 1023 container_of(dirty, typeof(*sdirty), base); 1024 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1025 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x; 1026 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y; 1027 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect); 1028 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1029 int i; 1030 1031 if (!dirty->num_hits) { 1032 vmw_fifo_commit(dirty->dev_priv, 0); 1033 return; 1034 } 1035 1036 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 1037 cmd->header.size = sizeof(cmd->body) + region_size; 1038 1039 /* 1040 * Use the destination bounding box to specify destination - and 1041 * source bounding regions. 1042 */ 1043 cmd->body.destRect.left = sdirty->left; 1044 cmd->body.destRect.right = sdirty->right; 1045 cmd->body.destRect.top = sdirty->top; 1046 cmd->body.destRect.bottom = sdirty->bottom; 1047 1048 cmd->body.srcRect.left = sdirty->left + trans_x; 1049 cmd->body.srcRect.right = sdirty->right + trans_x; 1050 cmd->body.srcRect.top = sdirty->top + trans_y; 1051 cmd->body.srcRect.bottom = sdirty->bottom + trans_y; 1052 1053 cmd->body.srcImage.sid = sdirty->sid; 1054 cmd->body.destScreenId = dirty->unit->unit; 1055 1056 /* Blits are relative to the destination rect. Translate. */ 1057 for (i = 0; i < dirty->num_hits; ++i, ++blit) { 1058 blit->left -= sdirty->left; 1059 blit->right -= sdirty->left; 1060 blit->top -= sdirty->top; 1061 blit->bottom -= sdirty->top; 1062 } 1063 1064 vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd)); 1065 1066 sdirty->left = sdirty->top = S32_MAX; 1067 sdirty->right = sdirty->bottom = S32_MIN; 1068 } 1069 1070 /** 1071 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect. 1072 * 1073 * @dirty: The closure structure 1074 * 1075 * Encodes a SVGASignedRect cliprect and updates the bounding box of the 1076 * BLIT_SURFACE_TO_SCREEN command. 1077 */ 1078 static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty) 1079 { 1080 struct vmw_kms_sou_surface_dirty *sdirty = 1081 container_of(dirty, typeof(*sdirty), base); 1082 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1083 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1084 1085 /* Destination rect. */ 1086 blit += dirty->num_hits; 1087 blit->left = dirty->unit_x1; 1088 blit->top = dirty->unit_y1; 1089 blit->right = dirty->unit_x2; 1090 blit->bottom = dirty->unit_y2; 1091 1092 /* Destination bounding box */ 1093 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 1094 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 1095 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 1096 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 1097 1098 dirty->num_hits++; 1099 } 1100 1101 /** 1102 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer 1103 * 1104 * @dev_priv: Pointer to the device private structure. 1105 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 1106 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 1107 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1108 * be NULL. 1109 * @srf: Pointer to surface to blit from. If NULL, the surface attached 1110 * to @framebuffer will be used. 1111 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 1112 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 1113 * @num_clips: Number of clip rects in @clips. 1114 * @inc: Increment to use when looping over @clips. 1115 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1116 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1117 * case the device has already synchronized. 1118 * @crtc: If crtc is passed, perform surface dirty on that crtc only. 1119 * 1120 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1121 * interrupted. 1122 */ 1123 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv, 1124 struct vmw_framebuffer *framebuffer, 1125 struct drm_clip_rect *clips, 1126 struct drm_vmw_rect *vclips, 1127 struct vmw_resource *srf, 1128 s32 dest_x, 1129 s32 dest_y, 1130 unsigned num_clips, int inc, 1131 struct vmw_fence_obj **out_fence, 1132 struct drm_crtc *crtc) 1133 { 1134 struct vmw_framebuffer_surface *vfbs = 1135 container_of(framebuffer, typeof(*vfbs), base); 1136 struct vmw_kms_sou_surface_dirty sdirty; 1137 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1138 int ret; 1139 1140 if (!srf) 1141 srf = &vfbs->surface->res; 1142 1143 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE, 1144 NULL, NULL); 1145 if (ret) 1146 return ret; 1147 1148 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true); 1149 if (ret) 1150 goto out_unref; 1151 1152 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit; 1153 sdirty.base.clip = vmw_sou_surface_clip; 1154 sdirty.base.dev_priv = dev_priv; 1155 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) + 1156 sizeof(SVGASignedRect) * num_clips; 1157 sdirty.base.crtc = crtc; 1158 1159 sdirty.sid = srf->id; 1160 sdirty.left = sdirty.top = S32_MAX; 1161 sdirty.right = sdirty.bottom = S32_MIN; 1162 sdirty.dst_x = dest_x; 1163 sdirty.dst_y = dest_y; 1164 1165 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1166 dest_x, dest_y, num_clips, inc, 1167 &sdirty.base); 1168 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1169 NULL); 1170 1171 return ret; 1172 1173 out_unref: 1174 vmw_validation_unref_lists(&val_ctx); 1175 return ret; 1176 } 1177 1178 /** 1179 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips. 1180 * 1181 * @dirty: The closure structure. 1182 * 1183 * Commits a previously built command buffer of readback clips. 1184 */ 1185 static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty) 1186 { 1187 if (!dirty->num_hits) { 1188 vmw_fifo_commit(dirty->dev_priv, 0); 1189 return; 1190 } 1191 1192 vmw_fifo_commit(dirty->dev_priv, 1193 sizeof(struct vmw_kms_sou_bo_blit) * 1194 dirty->num_hits); 1195 } 1196 1197 /** 1198 * vmw_sou_bo_clip - Callback to encode a readback cliprect. 1199 * 1200 * @dirty: The closure structure 1201 * 1202 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect. 1203 */ 1204 static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty) 1205 { 1206 struct vmw_kms_sou_bo_blit *blit = dirty->cmd; 1207 1208 blit += dirty->num_hits; 1209 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 1210 blit->body.destScreenId = dirty->unit->unit; 1211 blit->body.srcOrigin.x = dirty->fb_x; 1212 blit->body.srcOrigin.y = dirty->fb_y; 1213 blit->body.destRect.left = dirty->unit_x1; 1214 blit->body.destRect.top = dirty->unit_y1; 1215 blit->body.destRect.right = dirty->unit_x2; 1216 blit->body.destRect.bottom = dirty->unit_y2; 1217 dirty->num_hits++; 1218 } 1219 1220 /** 1221 * vmw_kms_do_bo_dirty - Dirty part of a buffer-object backed framebuffer 1222 * 1223 * @dev_priv: Pointer to the device private structure. 1224 * @framebuffer: Pointer to the buffer-object backed framebuffer. 1225 * @clips: Array of clip rects. 1226 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1227 * be NULL. 1228 * @num_clips: Number of clip rects in @clips. 1229 * @increment: Increment to use when looping over @clips. 1230 * @interruptible: Whether to perform waits interruptible if possible. 1231 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1232 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1233 * case the device has already synchronized. 1234 * @crtc: If crtc is passed, perform bo dirty on that crtc only. 1235 * 1236 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1237 * interrupted. 1238 */ 1239 int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv, 1240 struct vmw_framebuffer *framebuffer, 1241 struct drm_clip_rect *clips, 1242 struct drm_vmw_rect *vclips, 1243 unsigned num_clips, int increment, 1244 bool interruptible, 1245 struct vmw_fence_obj **out_fence, 1246 struct drm_crtc *crtc) 1247 { 1248 struct vmw_buffer_object *buf = 1249 container_of(framebuffer, struct vmw_framebuffer_bo, 1250 base)->buffer; 1251 struct vmw_kms_dirty dirty; 1252 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1253 int ret; 1254 1255 ret = vmw_validation_add_bo(&val_ctx, buf, false, false); 1256 if (ret) 1257 return ret; 1258 1259 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible); 1260 if (ret) 1261 goto out_unref; 1262 1263 ret = do_bo_define_gmrfb(dev_priv, framebuffer); 1264 if (unlikely(ret != 0)) 1265 goto out_revert; 1266 1267 dirty.crtc = crtc; 1268 dirty.fifo_commit = vmw_sou_bo_fifo_commit; 1269 dirty.clip = vmw_sou_bo_clip; 1270 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) * 1271 num_clips; 1272 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1273 0, 0, num_clips, increment, &dirty); 1274 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1275 NULL); 1276 1277 return ret; 1278 1279 out_revert: 1280 vmw_validation_revert(&val_ctx); 1281 out_unref: 1282 vmw_validation_unref_lists(&val_ctx); 1283 1284 return ret; 1285 } 1286 1287 1288 /** 1289 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips. 1290 * 1291 * @dirty: The closure structure. 1292 * 1293 * Commits a previously built command buffer of readback clips. 1294 */ 1295 static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty) 1296 { 1297 if (!dirty->num_hits) { 1298 vmw_fifo_commit(dirty->dev_priv, 0); 1299 return; 1300 } 1301 1302 vmw_fifo_commit(dirty->dev_priv, 1303 sizeof(struct vmw_kms_sou_readback_blit) * 1304 dirty->num_hits); 1305 } 1306 1307 /** 1308 * vmw_sou_readback_clip - Callback to encode a readback cliprect. 1309 * 1310 * @dirty: The closure structure 1311 * 1312 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect. 1313 */ 1314 static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty) 1315 { 1316 struct vmw_kms_sou_readback_blit *blit = dirty->cmd; 1317 1318 blit += dirty->num_hits; 1319 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; 1320 blit->body.srcScreenId = dirty->unit->unit; 1321 blit->body.destOrigin.x = dirty->fb_x; 1322 blit->body.destOrigin.y = dirty->fb_y; 1323 blit->body.srcRect.left = dirty->unit_x1; 1324 blit->body.srcRect.top = dirty->unit_y1; 1325 blit->body.srcRect.right = dirty->unit_x2; 1326 blit->body.srcRect.bottom = dirty->unit_y2; 1327 dirty->num_hits++; 1328 } 1329 1330 /** 1331 * vmw_kms_sou_readback - Perform a readback from the screen object system to 1332 * a buffer-object backed framebuffer. 1333 * 1334 * @dev_priv: Pointer to the device private structure. 1335 * @file_priv: Pointer to a struct drm_file identifying the caller. 1336 * Must be set to NULL if @user_fence_rep is NULL. 1337 * @vfb: Pointer to the buffer-object backed framebuffer. 1338 * @user_fence_rep: User-space provided structure for fence information. 1339 * Must be set to non-NULL if @file_priv is non-NULL. 1340 * @vclips: Array of clip rects. 1341 * @num_clips: Number of clip rects in @vclips. 1342 * @crtc: If crtc is passed, readback on that crtc only. 1343 * 1344 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1345 * interrupted. 1346 */ 1347 int vmw_kms_sou_readback(struct vmw_private *dev_priv, 1348 struct drm_file *file_priv, 1349 struct vmw_framebuffer *vfb, 1350 struct drm_vmw_fence_rep __user *user_fence_rep, 1351 struct drm_vmw_rect *vclips, 1352 uint32_t num_clips, 1353 struct drm_crtc *crtc) 1354 { 1355 struct vmw_buffer_object *buf = 1356 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer; 1357 struct vmw_kms_dirty dirty; 1358 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1359 int ret; 1360 1361 ret = vmw_validation_add_bo(&val_ctx, buf, false, false); 1362 if (ret) 1363 return ret; 1364 1365 ret = vmw_validation_prepare(&val_ctx, NULL, true); 1366 if (ret) 1367 goto out_unref; 1368 1369 ret = do_bo_define_gmrfb(dev_priv, vfb); 1370 if (unlikely(ret != 0)) 1371 goto out_revert; 1372 1373 dirty.crtc = crtc; 1374 dirty.fifo_commit = vmw_sou_readback_fifo_commit; 1375 dirty.clip = vmw_sou_readback_clip; 1376 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) * 1377 num_clips; 1378 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips, 1379 0, 0, num_clips, 1, &dirty); 1380 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL, 1381 user_fence_rep); 1382 1383 return ret; 1384 1385 out_revert: 1386 vmw_validation_revert(&val_ctx); 1387 out_unref: 1388 vmw_validation_unref_lists(&val_ctx); 1389 1390 return ret; 1391 } 1392