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 <drm/drm_atomic.h> 29 #include <drm/drm_atomic_helper.h> 30 #include <drm/drm_damage_helper.h> 31 #include <drm/drm_fourcc.h> 32 #include <drm/drm_plane_helper.h> 33 #include <drm/drm_vblank.h> 34 35 #include "vmwgfx_kms.h" 36 37 #define vmw_crtc_to_sou(x) \ 38 container_of(x, struct vmw_screen_object_unit, base.crtc) 39 #define vmw_encoder_to_sou(x) \ 40 container_of(x, struct vmw_screen_object_unit, base.encoder) 41 #define vmw_connector_to_sou(x) \ 42 container_of(x, struct vmw_screen_object_unit, base.connector) 43 44 /** 45 * struct vmw_kms_sou_surface_dirty - Closure structure for 46 * blit surface to screen command. 47 * @base: The base type we derive from. Used by vmw_kms_helper_dirty(). 48 * @left: Left side of bounding box. 49 * @right: Right side of bounding box. 50 * @top: Top side of bounding box. 51 * @bottom: Bottom side of bounding box. 52 * @dst_x: Difference between source clip rects and framebuffer coordinates. 53 * @dst_y: Difference between source clip rects and framebuffer coordinates. 54 * @sid: Surface id of surface to copy from. 55 */ 56 struct vmw_kms_sou_surface_dirty { 57 struct vmw_kms_dirty base; 58 s32 left, right, top, bottom; 59 s32 dst_x, dst_y; 60 u32 sid; 61 }; 62 63 /* 64 * SVGA commands that are used by this code. Please see the device headers 65 * for explanation. 66 */ 67 struct vmw_kms_sou_readback_blit { 68 uint32 header; 69 SVGAFifoCmdBlitScreenToGMRFB body; 70 }; 71 72 struct vmw_kms_sou_bo_blit { 73 uint32 header; 74 SVGAFifoCmdBlitGMRFBToScreen body; 75 }; 76 77 struct vmw_kms_sou_dirty_cmd { 78 SVGA3dCmdHeader header; 79 SVGA3dCmdBlitSurfaceToScreen body; 80 }; 81 82 struct vmw_kms_sou_define_gmrfb { 83 uint32_t header; 84 SVGAFifoCmdDefineGMRFB body; 85 }; 86 87 /* 88 * Display unit using screen objects. 89 */ 90 struct vmw_screen_object_unit { 91 struct vmw_display_unit base; 92 93 unsigned long buffer_size; /**< Size of allocated buffer */ 94 struct vmw_buffer_object *buffer; /**< Backing store buffer */ 95 96 bool defined; 97 }; 98 99 static void vmw_sou_destroy(struct vmw_screen_object_unit *sou) 100 { 101 vmw_du_cleanup(&sou->base); 102 kfree(sou); 103 } 104 105 106 /* 107 * Screen Object Display Unit CRTC functions 108 */ 109 110 static void vmw_sou_crtc_destroy(struct drm_crtc *crtc) 111 { 112 vmw_sou_destroy(vmw_crtc_to_sou(crtc)); 113 } 114 115 /* 116 * Send the fifo command to create a screen. 117 */ 118 static int vmw_sou_fifo_create(struct vmw_private *dev_priv, 119 struct vmw_screen_object_unit *sou, 120 int x, int y, 121 struct drm_display_mode *mode) 122 { 123 size_t fifo_size; 124 125 struct { 126 struct { 127 uint32_t cmdType; 128 } header; 129 SVGAScreenObject obj; 130 } *cmd; 131 132 BUG_ON(!sou->buffer); 133 134 fifo_size = sizeof(*cmd); 135 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size); 136 if (unlikely(cmd == NULL)) 137 return -ENOMEM; 138 139 memset(cmd, 0, fifo_size); 140 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN; 141 cmd->obj.structSize = sizeof(SVGAScreenObject); 142 cmd->obj.id = sou->base.unit; 143 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT | 144 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0); 145 cmd->obj.size.width = mode->hdisplay; 146 cmd->obj.size.height = mode->vdisplay; 147 cmd->obj.root.x = x; 148 cmd->obj.root.y = y; 149 sou->base.set_gui_x = cmd->obj.root.x; 150 sou->base.set_gui_y = cmd->obj.root.y; 151 152 /* Ok to assume that buffer is pinned in vram */ 153 vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr); 154 cmd->obj.backingStore.pitch = mode->hdisplay * 4; 155 156 vmw_cmd_commit(dev_priv, fifo_size); 157 158 sou->defined = true; 159 160 return 0; 161 } 162 163 /* 164 * Send the fifo command to destroy a screen. 165 */ 166 static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv, 167 struct vmw_screen_object_unit *sou) 168 { 169 size_t fifo_size; 170 int ret; 171 172 struct { 173 struct { 174 uint32_t cmdType; 175 } header; 176 SVGAFifoCmdDestroyScreen body; 177 } *cmd; 178 179 /* no need to do anything */ 180 if (unlikely(!sou->defined)) 181 return 0; 182 183 fifo_size = sizeof(*cmd); 184 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size); 185 if (unlikely(cmd == NULL)) 186 return -ENOMEM; 187 188 memset(cmd, 0, fifo_size); 189 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN; 190 cmd->body.screenId = sou->base.unit; 191 192 vmw_cmd_commit(dev_priv, fifo_size); 193 194 /* Force sync */ 195 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ); 196 if (unlikely(ret != 0)) 197 DRM_ERROR("Failed to sync with HW"); 198 else 199 sou->defined = false; 200 201 return ret; 202 } 203 204 /** 205 * vmw_sou_crtc_mode_set_nofb - Create new screen 206 * 207 * @crtc: CRTC associated with the new screen 208 * 209 * This function creates/destroys a screen. This function cannot fail, so if 210 * somehow we run into a failure, just do the best we can to get out. 211 */ 212 static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc) 213 { 214 struct vmw_private *dev_priv; 215 struct vmw_screen_object_unit *sou; 216 struct vmw_framebuffer *vfb; 217 struct drm_framebuffer *fb; 218 struct drm_plane_state *ps; 219 struct vmw_plane_state *vps; 220 int ret; 221 222 sou = vmw_crtc_to_sou(crtc); 223 dev_priv = vmw_priv(crtc->dev); 224 ps = crtc->primary->state; 225 fb = ps->fb; 226 vps = vmw_plane_state_to_vps(ps); 227 228 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL; 229 230 if (sou->defined) { 231 ret = vmw_sou_fifo_destroy(dev_priv, sou); 232 if (ret) { 233 DRM_ERROR("Failed to destroy Screen Object\n"); 234 return; 235 } 236 } 237 238 if (vfb) { 239 struct drm_connector_state *conn_state; 240 struct vmw_connector_state *vmw_conn_state; 241 int x, y; 242 243 sou->buffer = vps->bo; 244 sou->buffer_size = vps->bo_size; 245 246 conn_state = sou->base.connector.state; 247 vmw_conn_state = vmw_connector_state_to_vcs(conn_state); 248 249 x = vmw_conn_state->gui_x; 250 y = vmw_conn_state->gui_y; 251 252 ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode); 253 if (ret) 254 DRM_ERROR("Failed to define Screen Object %dx%d\n", 255 crtc->x, crtc->y); 256 257 } else { 258 sou->buffer = NULL; 259 sou->buffer_size = 0; 260 } 261 } 262 263 /** 264 * vmw_sou_crtc_helper_prepare - Noop 265 * 266 * @crtc: CRTC associated with the new screen 267 * 268 * Prepares the CRTC for a mode set, but we don't need to do anything here. 269 */ 270 static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc) 271 { 272 } 273 274 /** 275 * vmw_sou_crtc_atomic_enable - Noop 276 * 277 * @crtc: CRTC associated with the new screen 278 * @state: Unused 279 * 280 * This is called after a mode set has been completed. 281 */ 282 static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc, 283 struct drm_atomic_state *state) 284 { 285 } 286 287 /** 288 * vmw_sou_crtc_atomic_disable - Turns off CRTC 289 * 290 * @crtc: CRTC to be turned off 291 * @state: Unused 292 */ 293 static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc, 294 struct drm_atomic_state *state) 295 { 296 struct vmw_private *dev_priv; 297 struct vmw_screen_object_unit *sou; 298 int ret; 299 300 301 if (!crtc) { 302 DRM_ERROR("CRTC is NULL\n"); 303 return; 304 } 305 306 sou = vmw_crtc_to_sou(crtc); 307 dev_priv = vmw_priv(crtc->dev); 308 309 if (sou->defined) { 310 ret = vmw_sou_fifo_destroy(dev_priv, sou); 311 if (ret) 312 DRM_ERROR("Failed to destroy Screen Object\n"); 313 } 314 } 315 316 static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = { 317 .gamma_set = vmw_du_crtc_gamma_set, 318 .destroy = vmw_sou_crtc_destroy, 319 .reset = vmw_du_crtc_reset, 320 .atomic_duplicate_state = vmw_du_crtc_duplicate_state, 321 .atomic_destroy_state = vmw_du_crtc_destroy_state, 322 .set_config = drm_atomic_helper_set_config, 323 .page_flip = drm_atomic_helper_page_flip, 324 .get_vblank_counter = vmw_get_vblank_counter, 325 .enable_vblank = vmw_enable_vblank, 326 .disable_vblank = vmw_disable_vblank, 327 }; 328 329 /* 330 * Screen Object Display Unit encoder functions 331 */ 332 333 static void vmw_sou_encoder_destroy(struct drm_encoder *encoder) 334 { 335 vmw_sou_destroy(vmw_encoder_to_sou(encoder)); 336 } 337 338 static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = { 339 .destroy = vmw_sou_encoder_destroy, 340 }; 341 342 /* 343 * Screen Object Display Unit connector functions 344 */ 345 346 static void vmw_sou_connector_destroy(struct drm_connector *connector) 347 { 348 vmw_sou_destroy(vmw_connector_to_sou(connector)); 349 } 350 351 static const struct drm_connector_funcs vmw_sou_connector_funcs = { 352 .dpms = vmw_du_connector_dpms, 353 .detect = vmw_du_connector_detect, 354 .fill_modes = vmw_du_connector_fill_modes, 355 .destroy = vmw_sou_connector_destroy, 356 .reset = vmw_du_connector_reset, 357 .atomic_duplicate_state = vmw_du_connector_duplicate_state, 358 .atomic_destroy_state = vmw_du_connector_destroy_state, 359 }; 360 361 362 static const struct 363 drm_connector_helper_funcs vmw_sou_connector_helper_funcs = { 364 }; 365 366 367 368 /* 369 * Screen Object Display Plane Functions 370 */ 371 372 /** 373 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer 374 * 375 * @plane: display plane 376 * @old_state: Contains the FB to clean up 377 * 378 * Unpins the display surface 379 * 380 * Returns 0 on success 381 */ 382 static void 383 vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane, 384 struct drm_plane_state *old_state) 385 { 386 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state); 387 struct drm_crtc *crtc = plane->state->crtc ? 388 plane->state->crtc : old_state->crtc; 389 390 if (vps->bo) 391 vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false); 392 vmw_bo_unreference(&vps->bo); 393 vps->bo_size = 0; 394 395 vmw_du_plane_cleanup_fb(plane, old_state); 396 } 397 398 399 /** 400 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer 401 * 402 * @plane: display plane 403 * @new_state: info on the new plane state, including the FB 404 * 405 * The SOU backing buffer is our equivalent of the display plane. 406 * 407 * Returns 0 on success 408 */ 409 static int 410 vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane, 411 struct drm_plane_state *new_state) 412 { 413 struct drm_framebuffer *new_fb = new_state->fb; 414 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc; 415 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state); 416 struct vmw_private *dev_priv; 417 size_t size; 418 int ret; 419 420 421 if (!new_fb) { 422 vmw_bo_unreference(&vps->bo); 423 vps->bo_size = 0; 424 425 return 0; 426 } 427 428 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 == 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, size, 452 &vmw_vram_placement, 453 false, true, &vmw_bo_bo_free, &vps->bo); 454 vmw_overlay_resume_all(dev_priv); 455 if (ret) { 456 vps->bo = NULL; /* vmw_bo_init frees on error */ 457 return ret; 458 } 459 460 vps->bo_size = size; 461 462 /* 463 * TTM already thinks the buffer is pinned, but make sure the 464 * pin_count is upped. 465 */ 466 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true); 467 } 468 469 static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update, 470 uint32_t num_hits) 471 { 472 return sizeof(struct vmw_kms_sou_define_gmrfb) + 473 sizeof(struct vmw_kms_sou_bo_blit) * num_hits; 474 } 475 476 static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update, 477 void *cmd) 478 { 479 struct vmw_framebuffer_bo *vfbbo = 480 container_of(update->vfb, typeof(*vfbbo), base); 481 struct vmw_kms_sou_define_gmrfb *gmr = cmd; 482 int depth = update->vfb->base.format->depth; 483 484 /* Emulate RGBA support, contrary to svga_reg.h this is not 485 * supported by hosts. This is only a problem if we are reading 486 * this value later and expecting what we uploaded back. 487 */ 488 if (depth == 32) 489 depth = 24; 490 491 gmr->header = SVGA_CMD_DEFINE_GMRFB; 492 493 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8; 494 gmr->body.format.colorDepth = depth; 495 gmr->body.format.reserved = 0; 496 gmr->body.bytesPerLine = update->vfb->base.pitches[0]; 497 vmw_bo_get_guest_ptr(&vfbbo->buffer->base, &gmr->body.ptr); 498 499 return sizeof(*gmr); 500 } 501 502 static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update, 503 void *cmd, struct drm_rect *clip, 504 uint32_t fb_x, uint32_t fb_y) 505 { 506 struct vmw_kms_sou_bo_blit *blit = cmd; 507 508 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 509 blit->body.destScreenId = update->du->unit; 510 blit->body.srcOrigin.x = fb_x; 511 blit->body.srcOrigin.y = fb_y; 512 blit->body.destRect.left = clip->x1; 513 blit->body.destRect.top = clip->y1; 514 blit->body.destRect.right = clip->x2; 515 blit->body.destRect.bottom = clip->y2; 516 517 return sizeof(*blit); 518 } 519 520 static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update, 521 void *cmd, struct drm_rect *bb) 522 { 523 return 0; 524 } 525 526 /** 527 * vmw_sou_plane_update_bo - Update display unit for bo backed fb. 528 * @dev_priv: Device private. 529 * @plane: Plane state. 530 * @old_state: Old plane state. 531 * @vfb: Framebuffer which is blitted to display unit. 532 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 533 * The returned fence pointer may be NULL in which case the device 534 * has already synchronized. 535 * 536 * Return: 0 on success or a negative error code on failure. 537 */ 538 static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv, 539 struct drm_plane *plane, 540 struct drm_plane_state *old_state, 541 struct vmw_framebuffer *vfb, 542 struct vmw_fence_obj **out_fence) 543 { 544 struct vmw_du_update_plane_buffer bo_update; 545 546 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer)); 547 bo_update.base.plane = plane; 548 bo_update.base.old_state = old_state; 549 bo_update.base.dev_priv = dev_priv; 550 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc); 551 bo_update.base.vfb = vfb; 552 bo_update.base.out_fence = out_fence; 553 bo_update.base.mutex = NULL; 554 bo_update.base.cpu_blit = false; 555 bo_update.base.intr = true; 556 557 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size; 558 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb; 559 bo_update.base.clip = vmw_sou_bo_populate_clip; 560 bo_update.base.post_clip = vmw_stud_bo_post_clip; 561 562 return vmw_du_helper_plane_update(&bo_update.base); 563 } 564 565 static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update, 566 uint32_t num_hits) 567 { 568 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) * 569 num_hits; 570 } 571 572 static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update, 573 void *cmd) 574 { 575 struct vmw_du_update_plane_surface *srf_update; 576 577 srf_update = container_of(update, typeof(*srf_update), base); 578 579 /* 580 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that 581 * its bounding box is filled before iterating over all the clips. So 582 * store the FIFO start address and revisit to fill the details. 583 */ 584 srf_update->cmd_start = cmd; 585 586 return 0; 587 } 588 589 static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update, 590 void *cmd, uint32_t num_hits) 591 { 592 struct vmw_kms_sou_dirty_cmd *blit = cmd; 593 struct vmw_framebuffer_surface *vfbs; 594 595 vfbs = container_of(update->vfb, typeof(*vfbs), base); 596 597 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 598 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) * 599 num_hits; 600 601 blit->body.srcImage.sid = vfbs->surface->res.id; 602 blit->body.destScreenId = update->du->unit; 603 604 /* Update the source and destination bounding box later in post_clip */ 605 blit->body.srcRect.left = 0; 606 blit->body.srcRect.top = 0; 607 blit->body.srcRect.right = 0; 608 blit->body.srcRect.bottom = 0; 609 610 blit->body.destRect.left = 0; 611 blit->body.destRect.top = 0; 612 blit->body.destRect.right = 0; 613 blit->body.destRect.bottom = 0; 614 615 return sizeof(*blit); 616 } 617 618 static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update, 619 void *cmd, struct drm_rect *clip, 620 uint32_t src_x, uint32_t src_y) 621 { 622 SVGASignedRect *rect = cmd; 623 624 /* 625 * rects are relative to dest bounding box rect on screen object, so 626 * translate to it later in post_clip 627 */ 628 rect->left = clip->x1; 629 rect->top = clip->y1; 630 rect->right = clip->x2; 631 rect->bottom = clip->y2; 632 633 return sizeof(*rect); 634 } 635 636 static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update, 637 void *cmd, struct drm_rect *bb) 638 { 639 struct vmw_du_update_plane_surface *srf_update; 640 struct drm_plane_state *state = update->plane->state; 641 struct drm_rect src_bb; 642 struct vmw_kms_sou_dirty_cmd *blit; 643 SVGASignedRect *rect; 644 uint32_t num_hits; 645 int translate_src_x; 646 int translate_src_y; 647 int i; 648 649 srf_update = container_of(update, typeof(*srf_update), base); 650 651 blit = srf_update->cmd_start; 652 rect = (SVGASignedRect *)&blit[1]; 653 654 num_hits = (blit->header.size - sizeof(blit->body))/ 655 sizeof(SVGASignedRect); 656 657 src_bb = *bb; 658 659 /* To translate bb back to fb src coord */ 660 translate_src_x = (state->src_x >> 16) - state->crtc_x; 661 translate_src_y = (state->src_y >> 16) - state->crtc_y; 662 663 drm_rect_translate(&src_bb, translate_src_x, translate_src_y); 664 665 blit->body.srcRect.left = src_bb.x1; 666 blit->body.srcRect.top = src_bb.y1; 667 blit->body.srcRect.right = src_bb.x2; 668 blit->body.srcRect.bottom = src_bb.y2; 669 670 blit->body.destRect.left = bb->x1; 671 blit->body.destRect.top = bb->y1; 672 blit->body.destRect.right = bb->x2; 673 blit->body.destRect.bottom = bb->y2; 674 675 /* rects are relative to dest bb rect */ 676 for (i = 0; i < num_hits; i++) { 677 rect->left -= bb->x1; 678 rect->top -= bb->y1; 679 rect->right -= bb->x1; 680 rect->bottom -= bb->y1; 681 rect++; 682 } 683 684 return 0; 685 } 686 687 /** 688 * vmw_sou_plane_update_surface - Update display unit for surface backed fb. 689 * @dev_priv: Device private. 690 * @plane: Plane state. 691 * @old_state: Old plane state. 692 * @vfb: Framebuffer which is blitted to display unit 693 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 694 * The returned fence pointer may be NULL in which case the device 695 * has already synchronized. 696 * 697 * Return: 0 on success or a negative error code on failure. 698 */ 699 static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv, 700 struct drm_plane *plane, 701 struct drm_plane_state *old_state, 702 struct vmw_framebuffer *vfb, 703 struct vmw_fence_obj **out_fence) 704 { 705 struct vmw_du_update_plane_surface srf_update; 706 707 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface)); 708 srf_update.base.plane = plane; 709 srf_update.base.old_state = old_state; 710 srf_update.base.dev_priv = dev_priv; 711 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc); 712 srf_update.base.vfb = vfb; 713 srf_update.base.out_fence = out_fence; 714 srf_update.base.mutex = &dev_priv->cmdbuf_mutex; 715 srf_update.base.cpu_blit = false; 716 srf_update.base.intr = true; 717 718 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size; 719 srf_update.base.post_prepare = vmw_sou_surface_post_prepare; 720 srf_update.base.pre_clip = vmw_sou_surface_pre_clip; 721 srf_update.base.clip = vmw_sou_surface_clip_rect; 722 srf_update.base.post_clip = vmw_sou_surface_post_clip; 723 724 return vmw_du_helper_plane_update(&srf_update.base); 725 } 726 727 static void 728 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane, 729 struct drm_atomic_state *state) 730 { 731 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); 732 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); 733 struct drm_crtc *crtc = new_state->crtc; 734 struct drm_pending_vblank_event *event = NULL; 735 struct vmw_fence_obj *fence = NULL; 736 int ret; 737 738 /* In case of device error, maintain consistent atomic state */ 739 if (crtc && new_state->fb) { 740 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 741 struct vmw_framebuffer *vfb = 742 vmw_framebuffer_to_vfb(new_state->fb); 743 744 if (vfb->bo) 745 ret = vmw_sou_plane_update_bo(dev_priv, plane, 746 old_state, vfb, &fence); 747 else 748 ret = vmw_sou_plane_update_surface(dev_priv, plane, 749 old_state, vfb, 750 &fence); 751 if (ret != 0) 752 DRM_ERROR("Failed to update screen.\n"); 753 } else { 754 /* Do nothing when fb and crtc is NULL (blank crtc) */ 755 return; 756 } 757 758 /* For error case vblank event is send from vmw_du_crtc_atomic_flush */ 759 event = crtc->state->event; 760 if (event && fence) { 761 struct drm_file *file_priv = event->base.file_priv; 762 763 ret = vmw_event_fence_action_queue(file_priv, 764 fence, 765 &event->base, 766 &event->event.vbl.tv_sec, 767 &event->event.vbl.tv_usec, 768 true); 769 770 if (unlikely(ret != 0)) 771 DRM_ERROR("Failed to queue event on fence.\n"); 772 else 773 crtc->state->event = NULL; 774 } 775 776 if (fence) 777 vmw_fence_obj_unreference(&fence); 778 } 779 780 781 static const struct drm_plane_funcs vmw_sou_plane_funcs = { 782 .update_plane = drm_atomic_helper_update_plane, 783 .disable_plane = drm_atomic_helper_disable_plane, 784 .destroy = vmw_du_primary_plane_destroy, 785 .reset = vmw_du_plane_reset, 786 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 787 .atomic_destroy_state = vmw_du_plane_destroy_state, 788 }; 789 790 static const struct drm_plane_funcs vmw_sou_cursor_funcs = { 791 .update_plane = drm_atomic_helper_update_plane, 792 .disable_plane = drm_atomic_helper_disable_plane, 793 .destroy = vmw_du_cursor_plane_destroy, 794 .reset = vmw_du_plane_reset, 795 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 796 .atomic_destroy_state = vmw_du_plane_destroy_state, 797 }; 798 799 /* 800 * Atomic Helpers 801 */ 802 static const struct 803 drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = { 804 .atomic_check = vmw_du_cursor_plane_atomic_check, 805 .atomic_update = vmw_du_cursor_plane_atomic_update, 806 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 807 .cleanup_fb = vmw_du_plane_cleanup_fb, 808 }; 809 810 static const struct 811 drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = { 812 .atomic_check = vmw_du_primary_plane_atomic_check, 813 .atomic_update = vmw_sou_primary_plane_atomic_update, 814 .prepare_fb = vmw_sou_primary_plane_prepare_fb, 815 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb, 816 }; 817 818 static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = { 819 .prepare = vmw_sou_crtc_helper_prepare, 820 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb, 821 .atomic_check = vmw_du_crtc_atomic_check, 822 .atomic_begin = vmw_du_crtc_atomic_begin, 823 .atomic_flush = vmw_du_crtc_atomic_flush, 824 .atomic_enable = vmw_sou_crtc_atomic_enable, 825 .atomic_disable = vmw_sou_crtc_atomic_disable, 826 }; 827 828 829 static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) 830 { 831 struct vmw_screen_object_unit *sou; 832 struct drm_device *dev = &dev_priv->drm; 833 struct drm_connector *connector; 834 struct drm_encoder *encoder; 835 struct drm_plane *primary, *cursor; 836 struct drm_crtc *crtc; 837 int ret; 838 839 sou = kzalloc(sizeof(*sou), GFP_KERNEL); 840 if (!sou) 841 return -ENOMEM; 842 843 sou->base.unit = unit; 844 crtc = &sou->base.crtc; 845 encoder = &sou->base.encoder; 846 connector = &sou->base.connector; 847 primary = &sou->base.primary; 848 cursor = &sou->base.cursor; 849 850 sou->base.pref_active = (unit == 0); 851 sou->base.pref_width = dev_priv->initial_width; 852 sou->base.pref_height = dev_priv->initial_height; 853 sou->base.pref_mode = NULL; 854 855 /* 856 * Remove this after enabling atomic because property values can 857 * only exist in a state object 858 */ 859 sou->base.is_implicit = false; 860 861 /* Initialize primary plane */ 862 ret = drm_universal_plane_init(dev, &sou->base.primary, 863 0, &vmw_sou_plane_funcs, 864 vmw_primary_plane_formats, 865 ARRAY_SIZE(vmw_primary_plane_formats), 866 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 867 if (ret) { 868 DRM_ERROR("Failed to initialize primary plane"); 869 goto err_free; 870 } 871 872 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs); 873 drm_plane_enable_fb_damage_clips(primary); 874 875 /* Initialize cursor plane */ 876 ret = drm_universal_plane_init(dev, &sou->base.cursor, 877 0, &vmw_sou_cursor_funcs, 878 vmw_cursor_plane_formats, 879 ARRAY_SIZE(vmw_cursor_plane_formats), 880 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 881 if (ret) { 882 DRM_ERROR("Failed to initialize cursor plane"); 883 drm_plane_cleanup(&sou->base.primary); 884 goto err_free; 885 } 886 887 drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs); 888 889 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 ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary, 917 &sou->base.cursor, 918 &vmw_screen_object_crtc_funcs, NULL); 919 if (ret) { 920 DRM_ERROR("Failed to initialize CRTC\n"); 921 goto err_free_unregister; 922 } 923 924 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs); 925 926 drm_mode_crtc_set_gamma_size(crtc, 256); 927 928 drm_object_attach_property(&connector->base, 929 dev_priv->hotplug_mode_update_property, 1); 930 drm_object_attach_property(&connector->base, 931 dev->mode_config.suggested_x_property, 0); 932 drm_object_attach_property(&connector->base, 933 dev->mode_config.suggested_y_property, 0); 934 return 0; 935 936 err_free_unregister: 937 drm_connector_unregister(connector); 938 err_free_encoder: 939 drm_encoder_cleanup(encoder); 940 err_free_connector: 941 drm_connector_cleanup(connector); 942 err_free: 943 kfree(sou); 944 return ret; 945 } 946 947 int vmw_kms_sou_init_display(struct vmw_private *dev_priv) 948 { 949 struct drm_device *dev = &dev_priv->drm; 950 int i, ret; 951 952 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { 953 return -ENOSYS; 954 } 955 956 ret = -ENOMEM; 957 958 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 959 if (unlikely(ret != 0)) 960 return ret; 961 962 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) 963 vmw_sou_init(dev_priv, i); 964 965 dev_priv->active_display_unit = vmw_du_screen_object; 966 967 drm_mode_config_reset(dev); 968 969 return 0; 970 } 971 972 static int do_bo_define_gmrfb(struct vmw_private *dev_priv, 973 struct vmw_framebuffer *framebuffer) 974 { 975 struct vmw_buffer_object *buf = 976 container_of(framebuffer, struct vmw_framebuffer_bo, 977 base)->buffer; 978 int depth = framebuffer->base.format->depth; 979 struct { 980 uint32_t header; 981 SVGAFifoCmdDefineGMRFB body; 982 } *cmd; 983 984 /* Emulate RGBA support, contrary to svga_reg.h this is not 985 * supported by hosts. This is only a problem if we are reading 986 * this value later and expecting what we uploaded back. 987 */ 988 if (depth == 32) 989 depth = 24; 990 991 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd)); 992 if (!cmd) 993 return -ENOMEM; 994 995 cmd->header = SVGA_CMD_DEFINE_GMRFB; 996 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8; 997 cmd->body.format.colorDepth = depth; 998 cmd->body.format.reserved = 0; 999 cmd->body.bytesPerLine = framebuffer->base.pitches[0]; 1000 /* Buffer is reserved in vram or GMR */ 1001 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr); 1002 vmw_cmd_commit(dev_priv, sizeof(*cmd)); 1003 1004 return 0; 1005 } 1006 1007 /** 1008 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a 1009 * blit surface to screen command. 1010 * 1011 * @dirty: The closure structure. 1012 * 1013 * Fills in the missing fields in the command, and translates the cliprects 1014 * to match the destination bounding box encoded. 1015 */ 1016 static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty) 1017 { 1018 struct vmw_kms_sou_surface_dirty *sdirty = 1019 container_of(dirty, typeof(*sdirty), base); 1020 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1021 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x; 1022 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y; 1023 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect); 1024 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1025 int i; 1026 1027 if (!dirty->num_hits) { 1028 vmw_cmd_commit(dirty->dev_priv, 0); 1029 return; 1030 } 1031 1032 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 1033 cmd->header.size = sizeof(cmd->body) + region_size; 1034 1035 /* 1036 * Use the destination bounding box to specify destination - and 1037 * source bounding regions. 1038 */ 1039 cmd->body.destRect.left = sdirty->left; 1040 cmd->body.destRect.right = sdirty->right; 1041 cmd->body.destRect.top = sdirty->top; 1042 cmd->body.destRect.bottom = sdirty->bottom; 1043 1044 cmd->body.srcRect.left = sdirty->left + trans_x; 1045 cmd->body.srcRect.right = sdirty->right + trans_x; 1046 cmd->body.srcRect.top = sdirty->top + trans_y; 1047 cmd->body.srcRect.bottom = sdirty->bottom + trans_y; 1048 1049 cmd->body.srcImage.sid = sdirty->sid; 1050 cmd->body.destScreenId = dirty->unit->unit; 1051 1052 /* Blits are relative to the destination rect. Translate. */ 1053 for (i = 0; i < dirty->num_hits; ++i, ++blit) { 1054 blit->left -= sdirty->left; 1055 blit->right -= sdirty->left; 1056 blit->top -= sdirty->top; 1057 blit->bottom -= sdirty->top; 1058 } 1059 1060 vmw_cmd_commit(dirty->dev_priv, region_size + sizeof(*cmd)); 1061 1062 sdirty->left = sdirty->top = S32_MAX; 1063 sdirty->right = sdirty->bottom = S32_MIN; 1064 } 1065 1066 /** 1067 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect. 1068 * 1069 * @dirty: The closure structure 1070 * 1071 * Encodes a SVGASignedRect cliprect and updates the bounding box of the 1072 * BLIT_SURFACE_TO_SCREEN command. 1073 */ 1074 static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty) 1075 { 1076 struct vmw_kms_sou_surface_dirty *sdirty = 1077 container_of(dirty, typeof(*sdirty), base); 1078 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1079 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1080 1081 /* Destination rect. */ 1082 blit += dirty->num_hits; 1083 blit->left = dirty->unit_x1; 1084 blit->top = dirty->unit_y1; 1085 blit->right = dirty->unit_x2; 1086 blit->bottom = dirty->unit_y2; 1087 1088 /* Destination bounding box */ 1089 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 1090 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 1091 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 1092 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 1093 1094 dirty->num_hits++; 1095 } 1096 1097 /** 1098 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer 1099 * 1100 * @dev_priv: Pointer to the device private structure. 1101 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 1102 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 1103 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1104 * be NULL. 1105 * @srf: Pointer to surface to blit from. If NULL, the surface attached 1106 * to @framebuffer will be used. 1107 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 1108 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 1109 * @num_clips: Number of clip rects in @clips. 1110 * @inc: Increment to use when looping over @clips. 1111 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1112 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1113 * case the device has already synchronized. 1114 * @crtc: If crtc is passed, perform surface dirty on that crtc only. 1115 * 1116 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1117 * interrupted. 1118 */ 1119 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv, 1120 struct vmw_framebuffer *framebuffer, 1121 struct drm_clip_rect *clips, 1122 struct drm_vmw_rect *vclips, 1123 struct vmw_resource *srf, 1124 s32 dest_x, 1125 s32 dest_y, 1126 unsigned num_clips, int inc, 1127 struct vmw_fence_obj **out_fence, 1128 struct drm_crtc *crtc) 1129 { 1130 struct vmw_framebuffer_surface *vfbs = 1131 container_of(framebuffer, typeof(*vfbs), base); 1132 struct vmw_kms_sou_surface_dirty sdirty; 1133 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1134 int ret; 1135 1136 if (!srf) 1137 srf = &vfbs->surface->res; 1138 1139 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE, 1140 NULL, NULL); 1141 if (ret) 1142 return ret; 1143 1144 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true); 1145 if (ret) 1146 goto out_unref; 1147 1148 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit; 1149 sdirty.base.clip = vmw_sou_surface_clip; 1150 sdirty.base.dev_priv = dev_priv; 1151 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) + 1152 sizeof(SVGASignedRect) * num_clips; 1153 sdirty.base.crtc = crtc; 1154 1155 sdirty.sid = srf->id; 1156 sdirty.left = sdirty.top = S32_MAX; 1157 sdirty.right = sdirty.bottom = S32_MIN; 1158 sdirty.dst_x = dest_x; 1159 sdirty.dst_y = dest_y; 1160 1161 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1162 dest_x, dest_y, num_clips, inc, 1163 &sdirty.base); 1164 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1165 NULL); 1166 1167 return ret; 1168 1169 out_unref: 1170 vmw_validation_unref_lists(&val_ctx); 1171 return ret; 1172 } 1173 1174 /** 1175 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips. 1176 * 1177 * @dirty: The closure structure. 1178 * 1179 * Commits a previously built command buffer of readback clips. 1180 */ 1181 static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty) 1182 { 1183 if (!dirty->num_hits) { 1184 vmw_cmd_commit(dirty->dev_priv, 0); 1185 return; 1186 } 1187 1188 vmw_cmd_commit(dirty->dev_priv, 1189 sizeof(struct vmw_kms_sou_bo_blit) * 1190 dirty->num_hits); 1191 } 1192 1193 /** 1194 * vmw_sou_bo_clip - Callback to encode a readback cliprect. 1195 * 1196 * @dirty: The closure structure 1197 * 1198 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect. 1199 */ 1200 static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty) 1201 { 1202 struct vmw_kms_sou_bo_blit *blit = dirty->cmd; 1203 1204 blit += dirty->num_hits; 1205 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 1206 blit->body.destScreenId = dirty->unit->unit; 1207 blit->body.srcOrigin.x = dirty->fb_x; 1208 blit->body.srcOrigin.y = dirty->fb_y; 1209 blit->body.destRect.left = dirty->unit_x1; 1210 blit->body.destRect.top = dirty->unit_y1; 1211 blit->body.destRect.right = dirty->unit_x2; 1212 blit->body.destRect.bottom = dirty->unit_y2; 1213 dirty->num_hits++; 1214 } 1215 1216 /** 1217 * vmw_kms_sou_do_bo_dirty - Dirty part of a buffer-object backed framebuffer 1218 * 1219 * @dev_priv: Pointer to the device private structure. 1220 * @framebuffer: Pointer to the buffer-object backed framebuffer. 1221 * @clips: Array of clip rects. 1222 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1223 * be NULL. 1224 * @num_clips: Number of clip rects in @clips. 1225 * @increment: Increment to use when looping over @clips. 1226 * @interruptible: Whether to perform waits interruptible if possible. 1227 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1228 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1229 * case the device has already synchronized. 1230 * @crtc: If crtc is passed, perform bo dirty on that crtc only. 1231 * 1232 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1233 * interrupted. 1234 */ 1235 int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv, 1236 struct vmw_framebuffer *framebuffer, 1237 struct drm_clip_rect *clips, 1238 struct drm_vmw_rect *vclips, 1239 unsigned num_clips, int increment, 1240 bool interruptible, 1241 struct vmw_fence_obj **out_fence, 1242 struct drm_crtc *crtc) 1243 { 1244 struct vmw_buffer_object *buf = 1245 container_of(framebuffer, struct vmw_framebuffer_bo, 1246 base)->buffer; 1247 struct vmw_kms_dirty dirty; 1248 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1249 int ret; 1250 1251 ret = vmw_validation_add_bo(&val_ctx, buf, false, false); 1252 if (ret) 1253 return ret; 1254 1255 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible); 1256 if (ret) 1257 goto out_unref; 1258 1259 ret = do_bo_define_gmrfb(dev_priv, framebuffer); 1260 if (unlikely(ret != 0)) 1261 goto out_revert; 1262 1263 dirty.crtc = crtc; 1264 dirty.fifo_commit = vmw_sou_bo_fifo_commit; 1265 dirty.clip = vmw_sou_bo_clip; 1266 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) * 1267 num_clips; 1268 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1269 0, 0, num_clips, increment, &dirty); 1270 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1271 NULL); 1272 1273 return ret; 1274 1275 out_revert: 1276 vmw_validation_revert(&val_ctx); 1277 out_unref: 1278 vmw_validation_unref_lists(&val_ctx); 1279 1280 return ret; 1281 } 1282 1283 1284 /** 1285 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips. 1286 * 1287 * @dirty: The closure structure. 1288 * 1289 * Commits a previously built command buffer of readback clips. 1290 */ 1291 static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty) 1292 { 1293 if (!dirty->num_hits) { 1294 vmw_cmd_commit(dirty->dev_priv, 0); 1295 return; 1296 } 1297 1298 vmw_cmd_commit(dirty->dev_priv, 1299 sizeof(struct vmw_kms_sou_readback_blit) * 1300 dirty->num_hits); 1301 } 1302 1303 /** 1304 * vmw_sou_readback_clip - Callback to encode a readback cliprect. 1305 * 1306 * @dirty: The closure structure 1307 * 1308 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect. 1309 */ 1310 static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty) 1311 { 1312 struct vmw_kms_sou_readback_blit *blit = dirty->cmd; 1313 1314 blit += dirty->num_hits; 1315 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; 1316 blit->body.srcScreenId = dirty->unit->unit; 1317 blit->body.destOrigin.x = dirty->fb_x; 1318 blit->body.destOrigin.y = dirty->fb_y; 1319 blit->body.srcRect.left = dirty->unit_x1; 1320 blit->body.srcRect.top = dirty->unit_y1; 1321 blit->body.srcRect.right = dirty->unit_x2; 1322 blit->body.srcRect.bottom = dirty->unit_y2; 1323 dirty->num_hits++; 1324 } 1325 1326 /** 1327 * vmw_kms_sou_readback - Perform a readback from the screen object system to 1328 * a buffer-object backed framebuffer. 1329 * 1330 * @dev_priv: Pointer to the device private structure. 1331 * @file_priv: Pointer to a struct drm_file identifying the caller. 1332 * Must be set to NULL if @user_fence_rep is NULL. 1333 * @vfb: Pointer to the buffer-object backed framebuffer. 1334 * @user_fence_rep: User-space provided structure for fence information. 1335 * Must be set to non-NULL if @file_priv is non-NULL. 1336 * @vclips: Array of clip rects. 1337 * @num_clips: Number of clip rects in @vclips. 1338 * @crtc: If crtc is passed, readback on that crtc only. 1339 * 1340 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1341 * interrupted. 1342 */ 1343 int vmw_kms_sou_readback(struct vmw_private *dev_priv, 1344 struct drm_file *file_priv, 1345 struct vmw_framebuffer *vfb, 1346 struct drm_vmw_fence_rep __user *user_fence_rep, 1347 struct drm_vmw_rect *vclips, 1348 uint32_t num_clips, 1349 struct drm_crtc *crtc) 1350 { 1351 struct vmw_buffer_object *buf = 1352 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer; 1353 struct vmw_kms_dirty dirty; 1354 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1355 int ret; 1356 1357 ret = vmw_validation_add_bo(&val_ctx, buf, false, false); 1358 if (ret) 1359 return ret; 1360 1361 ret = vmw_validation_prepare(&val_ctx, NULL, true); 1362 if (ret) 1363 goto out_unref; 1364 1365 ret = do_bo_define_gmrfb(dev_priv, vfb); 1366 if (unlikely(ret != 0)) 1367 goto out_revert; 1368 1369 dirty.crtc = crtc; 1370 dirty.fifo_commit = vmw_sou_readback_fifo_commit; 1371 dirty.clip = vmw_sou_readback_clip; 1372 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) * 1373 num_clips; 1374 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips, 1375 0, 0, num_clips, 1, &dirty); 1376 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL, 1377 user_fence_rep); 1378 1379 return ret; 1380 1381 out_revert: 1382 vmw_validation_revert(&val_ctx); 1383 out_unref: 1384 vmw_validation_unref_lists(&val_ctx); 1385 1386 return ret; 1387 } 1388