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 vps->bo = kzalloc(sizeof(*vps->bo), GFP_KERNEL); 446 if (!vps->bo) 447 return -ENOMEM; 448 449 vmw_svga_enable(dev_priv); 450 451 /* After we have alloced the backing store might not be able to 452 * resume the overlays, this is preferred to failing to alloc. 453 */ 454 vmw_overlay_pause_all(dev_priv); 455 ret = vmw_bo_init(dev_priv, vps->bo, size, 456 &vmw_vram_placement, 457 false, true, &vmw_bo_bo_free); 458 vmw_overlay_resume_all(dev_priv); 459 if (ret) { 460 vps->bo = NULL; /* vmw_bo_init frees on error */ 461 return ret; 462 } 463 464 vps->bo_size = size; 465 466 /* 467 * TTM already thinks the buffer is pinned, but make sure the 468 * pin_count is upped. 469 */ 470 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true); 471 } 472 473 static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update, 474 uint32_t num_hits) 475 { 476 return sizeof(struct vmw_kms_sou_define_gmrfb) + 477 sizeof(struct vmw_kms_sou_bo_blit) * num_hits; 478 } 479 480 static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update, 481 void *cmd) 482 { 483 struct vmw_framebuffer_bo *vfbbo = 484 container_of(update->vfb, typeof(*vfbbo), base); 485 struct vmw_kms_sou_define_gmrfb *gmr = cmd; 486 int depth = update->vfb->base.format->depth; 487 488 /* Emulate RGBA support, contrary to svga_reg.h this is not 489 * supported by hosts. This is only a problem if we are reading 490 * this value later and expecting what we uploaded back. 491 */ 492 if (depth == 32) 493 depth = 24; 494 495 gmr->header = SVGA_CMD_DEFINE_GMRFB; 496 497 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8; 498 gmr->body.format.colorDepth = depth; 499 gmr->body.format.reserved = 0; 500 gmr->body.bytesPerLine = update->vfb->base.pitches[0]; 501 vmw_bo_get_guest_ptr(&vfbbo->buffer->base, &gmr->body.ptr); 502 503 return sizeof(*gmr); 504 } 505 506 static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update, 507 void *cmd, struct drm_rect *clip, 508 uint32_t fb_x, uint32_t fb_y) 509 { 510 struct vmw_kms_sou_bo_blit *blit = cmd; 511 512 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 513 blit->body.destScreenId = update->du->unit; 514 blit->body.srcOrigin.x = fb_x; 515 blit->body.srcOrigin.y = fb_y; 516 blit->body.destRect.left = clip->x1; 517 blit->body.destRect.top = clip->y1; 518 blit->body.destRect.right = clip->x2; 519 blit->body.destRect.bottom = clip->y2; 520 521 return sizeof(*blit); 522 } 523 524 static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update, 525 void *cmd, struct drm_rect *bb) 526 { 527 return 0; 528 } 529 530 /** 531 * vmw_sou_plane_update_bo - Update display unit for bo backed fb. 532 * @dev_priv: Device private. 533 * @plane: Plane state. 534 * @old_state: Old plane state. 535 * @vfb: Framebuffer which is blitted to display unit. 536 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 537 * The returned fence pointer may be NULL in which case the device 538 * has already synchronized. 539 * 540 * Return: 0 on success or a negative error code on failure. 541 */ 542 static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv, 543 struct drm_plane *plane, 544 struct drm_plane_state *old_state, 545 struct vmw_framebuffer *vfb, 546 struct vmw_fence_obj **out_fence) 547 { 548 struct vmw_du_update_plane_buffer bo_update; 549 550 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer)); 551 bo_update.base.plane = plane; 552 bo_update.base.old_state = old_state; 553 bo_update.base.dev_priv = dev_priv; 554 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc); 555 bo_update.base.vfb = vfb; 556 bo_update.base.out_fence = out_fence; 557 bo_update.base.mutex = NULL; 558 bo_update.base.cpu_blit = false; 559 bo_update.base.intr = true; 560 561 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size; 562 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb; 563 bo_update.base.clip = vmw_sou_bo_populate_clip; 564 bo_update.base.post_clip = vmw_stud_bo_post_clip; 565 566 return vmw_du_helper_plane_update(&bo_update.base); 567 } 568 569 static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update, 570 uint32_t num_hits) 571 { 572 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) * 573 num_hits; 574 } 575 576 static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update, 577 void *cmd) 578 { 579 struct vmw_du_update_plane_surface *srf_update; 580 581 srf_update = container_of(update, typeof(*srf_update), base); 582 583 /* 584 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that 585 * its bounding box is filled before iterating over all the clips. So 586 * store the FIFO start address and revisit to fill the details. 587 */ 588 srf_update->cmd_start = cmd; 589 590 return 0; 591 } 592 593 static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update, 594 void *cmd, uint32_t num_hits) 595 { 596 struct vmw_kms_sou_dirty_cmd *blit = cmd; 597 struct vmw_framebuffer_surface *vfbs; 598 599 vfbs = container_of(update->vfb, typeof(*vfbs), base); 600 601 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 602 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) * 603 num_hits; 604 605 blit->body.srcImage.sid = vfbs->surface->res.id; 606 blit->body.destScreenId = update->du->unit; 607 608 /* Update the source and destination bounding box later in post_clip */ 609 blit->body.srcRect.left = 0; 610 blit->body.srcRect.top = 0; 611 blit->body.srcRect.right = 0; 612 blit->body.srcRect.bottom = 0; 613 614 blit->body.destRect.left = 0; 615 blit->body.destRect.top = 0; 616 blit->body.destRect.right = 0; 617 blit->body.destRect.bottom = 0; 618 619 return sizeof(*blit); 620 } 621 622 static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update, 623 void *cmd, struct drm_rect *clip, 624 uint32_t src_x, uint32_t src_y) 625 { 626 SVGASignedRect *rect = cmd; 627 628 /* 629 * rects are relative to dest bounding box rect on screen object, so 630 * translate to it later in post_clip 631 */ 632 rect->left = clip->x1; 633 rect->top = clip->y1; 634 rect->right = clip->x2; 635 rect->bottom = clip->y2; 636 637 return sizeof(*rect); 638 } 639 640 static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update, 641 void *cmd, struct drm_rect *bb) 642 { 643 struct vmw_du_update_plane_surface *srf_update; 644 struct drm_plane_state *state = update->plane->state; 645 struct drm_rect src_bb; 646 struct vmw_kms_sou_dirty_cmd *blit; 647 SVGASignedRect *rect; 648 uint32_t num_hits; 649 int translate_src_x; 650 int translate_src_y; 651 int i; 652 653 srf_update = container_of(update, typeof(*srf_update), base); 654 655 blit = srf_update->cmd_start; 656 rect = (SVGASignedRect *)&blit[1]; 657 658 num_hits = (blit->header.size - sizeof(blit->body))/ 659 sizeof(SVGASignedRect); 660 661 src_bb = *bb; 662 663 /* To translate bb back to fb src coord */ 664 translate_src_x = (state->src_x >> 16) - state->crtc_x; 665 translate_src_y = (state->src_y >> 16) - state->crtc_y; 666 667 drm_rect_translate(&src_bb, translate_src_x, translate_src_y); 668 669 blit->body.srcRect.left = src_bb.x1; 670 blit->body.srcRect.top = src_bb.y1; 671 blit->body.srcRect.right = src_bb.x2; 672 blit->body.srcRect.bottom = src_bb.y2; 673 674 blit->body.destRect.left = bb->x1; 675 blit->body.destRect.top = bb->y1; 676 blit->body.destRect.right = bb->x2; 677 blit->body.destRect.bottom = bb->y2; 678 679 /* rects are relative to dest bb rect */ 680 for (i = 0; i < num_hits; i++) { 681 rect->left -= bb->x1; 682 rect->top -= bb->y1; 683 rect->right -= bb->x1; 684 rect->bottom -= bb->y1; 685 rect++; 686 } 687 688 return 0; 689 } 690 691 /** 692 * vmw_sou_plane_update_surface - Update display unit for surface backed fb. 693 * @dev_priv: Device private. 694 * @plane: Plane state. 695 * @old_state: Old plane state. 696 * @vfb: Framebuffer which is blitted to display unit 697 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj. 698 * The returned fence pointer may be NULL in which case the device 699 * has already synchronized. 700 * 701 * Return: 0 on success or a negative error code on failure. 702 */ 703 static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv, 704 struct drm_plane *plane, 705 struct drm_plane_state *old_state, 706 struct vmw_framebuffer *vfb, 707 struct vmw_fence_obj **out_fence) 708 { 709 struct vmw_du_update_plane_surface srf_update; 710 711 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface)); 712 srf_update.base.plane = plane; 713 srf_update.base.old_state = old_state; 714 srf_update.base.dev_priv = dev_priv; 715 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc); 716 srf_update.base.vfb = vfb; 717 srf_update.base.out_fence = out_fence; 718 srf_update.base.mutex = &dev_priv->cmdbuf_mutex; 719 srf_update.base.cpu_blit = false; 720 srf_update.base.intr = true; 721 722 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size; 723 srf_update.base.post_prepare = vmw_sou_surface_post_prepare; 724 srf_update.base.pre_clip = vmw_sou_surface_pre_clip; 725 srf_update.base.clip = vmw_sou_surface_clip_rect; 726 srf_update.base.post_clip = vmw_sou_surface_post_clip; 727 728 return vmw_du_helper_plane_update(&srf_update.base); 729 } 730 731 static void 732 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane, 733 struct drm_atomic_state *state) 734 { 735 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane); 736 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); 737 struct drm_crtc *crtc = new_state->crtc; 738 struct drm_pending_vblank_event *event = NULL; 739 struct vmw_fence_obj *fence = NULL; 740 int ret; 741 742 /* In case of device error, maintain consistent atomic state */ 743 if (crtc && new_state->fb) { 744 struct vmw_private *dev_priv = vmw_priv(crtc->dev); 745 struct vmw_framebuffer *vfb = 746 vmw_framebuffer_to_vfb(new_state->fb); 747 748 if (vfb->bo) 749 ret = vmw_sou_plane_update_bo(dev_priv, plane, 750 old_state, vfb, &fence); 751 else 752 ret = vmw_sou_plane_update_surface(dev_priv, plane, 753 old_state, vfb, 754 &fence); 755 if (ret != 0) 756 DRM_ERROR("Failed to update screen.\n"); 757 } else { 758 /* Do nothing when fb and crtc is NULL (blank crtc) */ 759 return; 760 } 761 762 /* For error case vblank event is send from vmw_du_crtc_atomic_flush */ 763 event = crtc->state->event; 764 if (event && fence) { 765 struct drm_file *file_priv = event->base.file_priv; 766 767 ret = vmw_event_fence_action_queue(file_priv, 768 fence, 769 &event->base, 770 &event->event.vbl.tv_sec, 771 &event->event.vbl.tv_usec, 772 true); 773 774 if (unlikely(ret != 0)) 775 DRM_ERROR("Failed to queue event on fence.\n"); 776 else 777 crtc->state->event = NULL; 778 } 779 780 if (fence) 781 vmw_fence_obj_unreference(&fence); 782 } 783 784 785 static const struct drm_plane_funcs vmw_sou_plane_funcs = { 786 .update_plane = drm_atomic_helper_update_plane, 787 .disable_plane = drm_atomic_helper_disable_plane, 788 .destroy = vmw_du_primary_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 static const struct drm_plane_funcs vmw_sou_cursor_funcs = { 795 .update_plane = drm_atomic_helper_update_plane, 796 .disable_plane = drm_atomic_helper_disable_plane, 797 .destroy = vmw_du_cursor_plane_destroy, 798 .reset = vmw_du_plane_reset, 799 .atomic_duplicate_state = vmw_du_plane_duplicate_state, 800 .atomic_destroy_state = vmw_du_plane_destroy_state, 801 }; 802 803 /* 804 * Atomic Helpers 805 */ 806 static const struct 807 drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = { 808 .atomic_check = vmw_du_cursor_plane_atomic_check, 809 .atomic_update = vmw_du_cursor_plane_atomic_update, 810 .prepare_fb = vmw_du_cursor_plane_prepare_fb, 811 .cleanup_fb = vmw_du_plane_cleanup_fb, 812 }; 813 814 static const struct 815 drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = { 816 .atomic_check = vmw_du_primary_plane_atomic_check, 817 .atomic_update = vmw_sou_primary_plane_atomic_update, 818 .prepare_fb = vmw_sou_primary_plane_prepare_fb, 819 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb, 820 }; 821 822 static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = { 823 .prepare = vmw_sou_crtc_helper_prepare, 824 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb, 825 .atomic_check = vmw_du_crtc_atomic_check, 826 .atomic_begin = vmw_du_crtc_atomic_begin, 827 .atomic_flush = vmw_du_crtc_atomic_flush, 828 .atomic_enable = vmw_sou_crtc_atomic_enable, 829 .atomic_disable = vmw_sou_crtc_atomic_disable, 830 }; 831 832 833 static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit) 834 { 835 struct vmw_screen_object_unit *sou; 836 struct drm_device *dev = &dev_priv->drm; 837 struct drm_connector *connector; 838 struct drm_encoder *encoder; 839 struct drm_plane *primary, *cursor; 840 struct drm_crtc *crtc; 841 int ret; 842 843 sou = kzalloc(sizeof(*sou), GFP_KERNEL); 844 if (!sou) 845 return -ENOMEM; 846 847 sou->base.unit = unit; 848 crtc = &sou->base.crtc; 849 encoder = &sou->base.encoder; 850 connector = &sou->base.connector; 851 primary = &sou->base.primary; 852 cursor = &sou->base.cursor; 853 854 sou->base.pref_active = (unit == 0); 855 sou->base.pref_width = dev_priv->initial_width; 856 sou->base.pref_height = dev_priv->initial_height; 857 sou->base.pref_mode = NULL; 858 859 /* 860 * Remove this after enabling atomic because property values can 861 * only exist in a state object 862 */ 863 sou->base.is_implicit = false; 864 865 /* Initialize primary plane */ 866 ret = drm_universal_plane_init(dev, &sou->base.primary, 867 0, &vmw_sou_plane_funcs, 868 vmw_primary_plane_formats, 869 ARRAY_SIZE(vmw_primary_plane_formats), 870 NULL, DRM_PLANE_TYPE_PRIMARY, NULL); 871 if (ret) { 872 DRM_ERROR("Failed to initialize primary plane"); 873 goto err_free; 874 } 875 876 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs); 877 drm_plane_enable_fb_damage_clips(primary); 878 879 /* Initialize cursor plane */ 880 ret = drm_universal_plane_init(dev, &sou->base.cursor, 881 0, &vmw_sou_cursor_funcs, 882 vmw_cursor_plane_formats, 883 ARRAY_SIZE(vmw_cursor_plane_formats), 884 NULL, DRM_PLANE_TYPE_CURSOR, NULL); 885 if (ret) { 886 DRM_ERROR("Failed to initialize cursor plane"); 887 drm_plane_cleanup(&sou->base.primary); 888 goto err_free; 889 } 890 891 drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs); 892 893 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs, 894 DRM_MODE_CONNECTOR_VIRTUAL); 895 if (ret) { 896 DRM_ERROR("Failed to initialize connector\n"); 897 goto err_free; 898 } 899 900 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs); 901 connector->status = vmw_du_connector_detect(connector, true); 902 903 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs, 904 DRM_MODE_ENCODER_VIRTUAL, NULL); 905 if (ret) { 906 DRM_ERROR("Failed to initialize encoder\n"); 907 goto err_free_connector; 908 } 909 910 (void) drm_connector_attach_encoder(connector, encoder); 911 encoder->possible_crtcs = (1 << unit); 912 encoder->possible_clones = 0; 913 914 ret = drm_connector_register(connector); 915 if (ret) { 916 DRM_ERROR("Failed to register connector\n"); 917 goto err_free_encoder; 918 } 919 920 ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary, 921 &sou->base.cursor, 922 &vmw_screen_object_crtc_funcs, NULL); 923 if (ret) { 924 DRM_ERROR("Failed to initialize CRTC\n"); 925 goto err_free_unregister; 926 } 927 928 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs); 929 930 drm_mode_crtc_set_gamma_size(crtc, 256); 931 932 drm_object_attach_property(&connector->base, 933 dev_priv->hotplug_mode_update_property, 1); 934 drm_object_attach_property(&connector->base, 935 dev->mode_config.suggested_x_property, 0); 936 drm_object_attach_property(&connector->base, 937 dev->mode_config.suggested_y_property, 0); 938 return 0; 939 940 err_free_unregister: 941 drm_connector_unregister(connector); 942 err_free_encoder: 943 drm_encoder_cleanup(encoder); 944 err_free_connector: 945 drm_connector_cleanup(connector); 946 err_free: 947 kfree(sou); 948 return ret; 949 } 950 951 int vmw_kms_sou_init_display(struct vmw_private *dev_priv) 952 { 953 struct drm_device *dev = &dev_priv->drm; 954 int i, ret; 955 956 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) { 957 DRM_INFO("Not using screen objects," 958 " missing cap SCREEN_OBJECT_2\n"); 959 return -ENOSYS; 960 } 961 962 ret = -ENOMEM; 963 964 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS); 965 if (unlikely(ret != 0)) 966 return ret; 967 968 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) 969 vmw_sou_init(dev_priv, i); 970 971 dev_priv->active_display_unit = vmw_du_screen_object; 972 973 drm_mode_config_reset(dev); 974 975 DRM_INFO("Screen Objects Display Unit initialized\n"); 976 977 return 0; 978 } 979 980 static int do_bo_define_gmrfb(struct vmw_private *dev_priv, 981 struct vmw_framebuffer *framebuffer) 982 { 983 struct vmw_buffer_object *buf = 984 container_of(framebuffer, struct vmw_framebuffer_bo, 985 base)->buffer; 986 int depth = framebuffer->base.format->depth; 987 struct { 988 uint32_t header; 989 SVGAFifoCmdDefineGMRFB body; 990 } *cmd; 991 992 /* Emulate RGBA support, contrary to svga_reg.h this is not 993 * supported by hosts. This is only a problem if we are reading 994 * this value later and expecting what we uploaded back. 995 */ 996 if (depth == 32) 997 depth = 24; 998 999 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd)); 1000 if (!cmd) 1001 return -ENOMEM; 1002 1003 cmd->header = SVGA_CMD_DEFINE_GMRFB; 1004 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8; 1005 cmd->body.format.colorDepth = depth; 1006 cmd->body.format.reserved = 0; 1007 cmd->body.bytesPerLine = framebuffer->base.pitches[0]; 1008 /* Buffer is reserved in vram or GMR */ 1009 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr); 1010 vmw_cmd_commit(dev_priv, sizeof(*cmd)); 1011 1012 return 0; 1013 } 1014 1015 /** 1016 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a 1017 * blit surface to screen command. 1018 * 1019 * @dirty: The closure structure. 1020 * 1021 * Fills in the missing fields in the command, and translates the cliprects 1022 * to match the destination bounding box encoded. 1023 */ 1024 static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty) 1025 { 1026 struct vmw_kms_sou_surface_dirty *sdirty = 1027 container_of(dirty, typeof(*sdirty), base); 1028 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1029 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x; 1030 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y; 1031 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect); 1032 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1033 int i; 1034 1035 if (!dirty->num_hits) { 1036 vmw_cmd_commit(dirty->dev_priv, 0); 1037 return; 1038 } 1039 1040 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN; 1041 cmd->header.size = sizeof(cmd->body) + region_size; 1042 1043 /* 1044 * Use the destination bounding box to specify destination - and 1045 * source bounding regions. 1046 */ 1047 cmd->body.destRect.left = sdirty->left; 1048 cmd->body.destRect.right = sdirty->right; 1049 cmd->body.destRect.top = sdirty->top; 1050 cmd->body.destRect.bottom = sdirty->bottom; 1051 1052 cmd->body.srcRect.left = sdirty->left + trans_x; 1053 cmd->body.srcRect.right = sdirty->right + trans_x; 1054 cmd->body.srcRect.top = sdirty->top + trans_y; 1055 cmd->body.srcRect.bottom = sdirty->bottom + trans_y; 1056 1057 cmd->body.srcImage.sid = sdirty->sid; 1058 cmd->body.destScreenId = dirty->unit->unit; 1059 1060 /* Blits are relative to the destination rect. Translate. */ 1061 for (i = 0; i < dirty->num_hits; ++i, ++blit) { 1062 blit->left -= sdirty->left; 1063 blit->right -= sdirty->left; 1064 blit->top -= sdirty->top; 1065 blit->bottom -= sdirty->top; 1066 } 1067 1068 vmw_cmd_commit(dirty->dev_priv, region_size + sizeof(*cmd)); 1069 1070 sdirty->left = sdirty->top = S32_MAX; 1071 sdirty->right = sdirty->bottom = S32_MIN; 1072 } 1073 1074 /** 1075 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect. 1076 * 1077 * @dirty: The closure structure 1078 * 1079 * Encodes a SVGASignedRect cliprect and updates the bounding box of the 1080 * BLIT_SURFACE_TO_SCREEN command. 1081 */ 1082 static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty) 1083 { 1084 struct vmw_kms_sou_surface_dirty *sdirty = 1085 container_of(dirty, typeof(*sdirty), base); 1086 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd; 1087 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1]; 1088 1089 /* Destination rect. */ 1090 blit += dirty->num_hits; 1091 blit->left = dirty->unit_x1; 1092 blit->top = dirty->unit_y1; 1093 blit->right = dirty->unit_x2; 1094 blit->bottom = dirty->unit_y2; 1095 1096 /* Destination bounding box */ 1097 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1); 1098 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1); 1099 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2); 1100 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2); 1101 1102 dirty->num_hits++; 1103 } 1104 1105 /** 1106 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer 1107 * 1108 * @dev_priv: Pointer to the device private structure. 1109 * @framebuffer: Pointer to the surface-buffer backed framebuffer. 1110 * @clips: Array of clip rects. Either @clips or @vclips must be NULL. 1111 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1112 * be NULL. 1113 * @srf: Pointer to surface to blit from. If NULL, the surface attached 1114 * to @framebuffer will be used. 1115 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates. 1116 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates. 1117 * @num_clips: Number of clip rects in @clips. 1118 * @inc: Increment to use when looping over @clips. 1119 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1120 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1121 * case the device has already synchronized. 1122 * @crtc: If crtc is passed, perform surface dirty on that crtc only. 1123 * 1124 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1125 * interrupted. 1126 */ 1127 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv, 1128 struct vmw_framebuffer *framebuffer, 1129 struct drm_clip_rect *clips, 1130 struct drm_vmw_rect *vclips, 1131 struct vmw_resource *srf, 1132 s32 dest_x, 1133 s32 dest_y, 1134 unsigned num_clips, int inc, 1135 struct vmw_fence_obj **out_fence, 1136 struct drm_crtc *crtc) 1137 { 1138 struct vmw_framebuffer_surface *vfbs = 1139 container_of(framebuffer, typeof(*vfbs), base); 1140 struct vmw_kms_sou_surface_dirty sdirty; 1141 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1142 int ret; 1143 1144 if (!srf) 1145 srf = &vfbs->surface->res; 1146 1147 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE, 1148 NULL, NULL); 1149 if (ret) 1150 return ret; 1151 1152 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true); 1153 if (ret) 1154 goto out_unref; 1155 1156 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit; 1157 sdirty.base.clip = vmw_sou_surface_clip; 1158 sdirty.base.dev_priv = dev_priv; 1159 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) + 1160 sizeof(SVGASignedRect) * num_clips; 1161 sdirty.base.crtc = crtc; 1162 1163 sdirty.sid = srf->id; 1164 sdirty.left = sdirty.top = S32_MAX; 1165 sdirty.right = sdirty.bottom = S32_MIN; 1166 sdirty.dst_x = dest_x; 1167 sdirty.dst_y = dest_y; 1168 1169 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1170 dest_x, dest_y, num_clips, inc, 1171 &sdirty.base); 1172 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1173 NULL); 1174 1175 return ret; 1176 1177 out_unref: 1178 vmw_validation_unref_lists(&val_ctx); 1179 return ret; 1180 } 1181 1182 /** 1183 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips. 1184 * 1185 * @dirty: The closure structure. 1186 * 1187 * Commits a previously built command buffer of readback clips. 1188 */ 1189 static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty) 1190 { 1191 if (!dirty->num_hits) { 1192 vmw_cmd_commit(dirty->dev_priv, 0); 1193 return; 1194 } 1195 1196 vmw_cmd_commit(dirty->dev_priv, 1197 sizeof(struct vmw_kms_sou_bo_blit) * 1198 dirty->num_hits); 1199 } 1200 1201 /** 1202 * vmw_sou_bo_clip - Callback to encode a readback cliprect. 1203 * 1204 * @dirty: The closure structure 1205 * 1206 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect. 1207 */ 1208 static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty) 1209 { 1210 struct vmw_kms_sou_bo_blit *blit = dirty->cmd; 1211 1212 blit += dirty->num_hits; 1213 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN; 1214 blit->body.destScreenId = dirty->unit->unit; 1215 blit->body.srcOrigin.x = dirty->fb_x; 1216 blit->body.srcOrigin.y = dirty->fb_y; 1217 blit->body.destRect.left = dirty->unit_x1; 1218 blit->body.destRect.top = dirty->unit_y1; 1219 blit->body.destRect.right = dirty->unit_x2; 1220 blit->body.destRect.bottom = dirty->unit_y2; 1221 dirty->num_hits++; 1222 } 1223 1224 /** 1225 * vmw_kms_sou_do_bo_dirty - Dirty part of a buffer-object backed framebuffer 1226 * 1227 * @dev_priv: Pointer to the device private structure. 1228 * @framebuffer: Pointer to the buffer-object backed framebuffer. 1229 * @clips: Array of clip rects. 1230 * @vclips: Alternate array of clip rects. Either @clips or @vclips must 1231 * be NULL. 1232 * @num_clips: Number of clip rects in @clips. 1233 * @increment: Increment to use when looping over @clips. 1234 * @interruptible: Whether to perform waits interruptible if possible. 1235 * @out_fence: If non-NULL, will return a ref-counted pointer to a 1236 * struct vmw_fence_obj. The returned fence pointer may be NULL in which 1237 * case the device has already synchronized. 1238 * @crtc: If crtc is passed, perform bo dirty on that crtc only. 1239 * 1240 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1241 * interrupted. 1242 */ 1243 int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv, 1244 struct vmw_framebuffer *framebuffer, 1245 struct drm_clip_rect *clips, 1246 struct drm_vmw_rect *vclips, 1247 unsigned num_clips, int increment, 1248 bool interruptible, 1249 struct vmw_fence_obj **out_fence, 1250 struct drm_crtc *crtc) 1251 { 1252 struct vmw_buffer_object *buf = 1253 container_of(framebuffer, struct vmw_framebuffer_bo, 1254 base)->buffer; 1255 struct vmw_kms_dirty dirty; 1256 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1257 int ret; 1258 1259 ret = vmw_validation_add_bo(&val_ctx, buf, false, false); 1260 if (ret) 1261 return ret; 1262 1263 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible); 1264 if (ret) 1265 goto out_unref; 1266 1267 ret = do_bo_define_gmrfb(dev_priv, framebuffer); 1268 if (unlikely(ret != 0)) 1269 goto out_revert; 1270 1271 dirty.crtc = crtc; 1272 dirty.fifo_commit = vmw_sou_bo_fifo_commit; 1273 dirty.clip = vmw_sou_bo_clip; 1274 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) * 1275 num_clips; 1276 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips, 1277 0, 0, num_clips, increment, &dirty); 1278 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence, 1279 NULL); 1280 1281 return ret; 1282 1283 out_revert: 1284 vmw_validation_revert(&val_ctx); 1285 out_unref: 1286 vmw_validation_unref_lists(&val_ctx); 1287 1288 return ret; 1289 } 1290 1291 1292 /** 1293 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips. 1294 * 1295 * @dirty: The closure structure. 1296 * 1297 * Commits a previously built command buffer of readback clips. 1298 */ 1299 static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty) 1300 { 1301 if (!dirty->num_hits) { 1302 vmw_cmd_commit(dirty->dev_priv, 0); 1303 return; 1304 } 1305 1306 vmw_cmd_commit(dirty->dev_priv, 1307 sizeof(struct vmw_kms_sou_readback_blit) * 1308 dirty->num_hits); 1309 } 1310 1311 /** 1312 * vmw_sou_readback_clip - Callback to encode a readback cliprect. 1313 * 1314 * @dirty: The closure structure 1315 * 1316 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect. 1317 */ 1318 static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty) 1319 { 1320 struct vmw_kms_sou_readback_blit *blit = dirty->cmd; 1321 1322 blit += dirty->num_hits; 1323 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB; 1324 blit->body.srcScreenId = dirty->unit->unit; 1325 blit->body.destOrigin.x = dirty->fb_x; 1326 blit->body.destOrigin.y = dirty->fb_y; 1327 blit->body.srcRect.left = dirty->unit_x1; 1328 blit->body.srcRect.top = dirty->unit_y1; 1329 blit->body.srcRect.right = dirty->unit_x2; 1330 blit->body.srcRect.bottom = dirty->unit_y2; 1331 dirty->num_hits++; 1332 } 1333 1334 /** 1335 * vmw_kms_sou_readback - Perform a readback from the screen object system to 1336 * a buffer-object backed framebuffer. 1337 * 1338 * @dev_priv: Pointer to the device private structure. 1339 * @file_priv: Pointer to a struct drm_file identifying the caller. 1340 * Must be set to NULL if @user_fence_rep is NULL. 1341 * @vfb: Pointer to the buffer-object backed framebuffer. 1342 * @user_fence_rep: User-space provided structure for fence information. 1343 * Must be set to non-NULL if @file_priv is non-NULL. 1344 * @vclips: Array of clip rects. 1345 * @num_clips: Number of clip rects in @vclips. 1346 * @crtc: If crtc is passed, readback on that crtc only. 1347 * 1348 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if 1349 * interrupted. 1350 */ 1351 int vmw_kms_sou_readback(struct vmw_private *dev_priv, 1352 struct drm_file *file_priv, 1353 struct vmw_framebuffer *vfb, 1354 struct drm_vmw_fence_rep __user *user_fence_rep, 1355 struct drm_vmw_rect *vclips, 1356 uint32_t num_clips, 1357 struct drm_crtc *crtc) 1358 { 1359 struct vmw_buffer_object *buf = 1360 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer; 1361 struct vmw_kms_dirty dirty; 1362 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0); 1363 int ret; 1364 1365 ret = vmw_validation_add_bo(&val_ctx, buf, false, false); 1366 if (ret) 1367 return ret; 1368 1369 ret = vmw_validation_prepare(&val_ctx, NULL, true); 1370 if (ret) 1371 goto out_unref; 1372 1373 ret = do_bo_define_gmrfb(dev_priv, vfb); 1374 if (unlikely(ret != 0)) 1375 goto out_revert; 1376 1377 dirty.crtc = crtc; 1378 dirty.fifo_commit = vmw_sou_readback_fifo_commit; 1379 dirty.clip = vmw_sou_readback_clip; 1380 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) * 1381 num_clips; 1382 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips, 1383 0, 0, num_clips, 1, &dirty); 1384 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL, 1385 user_fence_rep); 1386 1387 return ret; 1388 1389 out_revert: 1390 vmw_validation_revert(&val_ctx); 1391 out_unref: 1392 vmw_validation_unref_lists(&val_ctx); 1393 1394 return ret; 1395 } 1396