1 /* 2 * Copyright (C) 2008 Maarten Maathuis. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 */ 26 27 #include <acpi/video.h> 28 #include <drm/drmP.h> 29 #include <drm/drm_atomic.h> 30 #include <drm/drm_atomic_helper.h> 31 #include <drm/drm_crtc_helper.h> 32 33 #include <nvif/class.h> 34 35 #include "nouveau_fbcon.h" 36 #include "dispnv04/hw.h" 37 #include "nouveau_crtc.h" 38 #include "nouveau_dma.h" 39 #include "nouveau_gem.h" 40 #include "nouveau_connector.h" 41 #include "nv50_display.h" 42 43 #include "nouveau_fence.h" 44 45 #include <nvif/cl0046.h> 46 #include <nvif/event.h> 47 48 static int 49 nouveau_display_vblank_handler(struct nvif_notify *notify) 50 { 51 struct nouveau_crtc *nv_crtc = 52 container_of(notify, typeof(*nv_crtc), vblank); 53 drm_crtc_handle_vblank(&nv_crtc->base); 54 return NVIF_NOTIFY_KEEP; 55 } 56 57 int 58 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe) 59 { 60 struct drm_crtc *crtc; 61 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 62 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 63 if (nv_crtc->index == pipe) { 64 nvif_notify_get(&nv_crtc->vblank); 65 return 0; 66 } 67 } 68 return -EINVAL; 69 } 70 71 void 72 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe) 73 { 74 struct drm_crtc *crtc; 75 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 76 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 77 if (nv_crtc->index == pipe) { 78 nvif_notify_put(&nv_crtc->vblank); 79 return; 80 } 81 } 82 } 83 84 static inline int 85 calc(int blanks, int blanke, int total, int line) 86 { 87 if (blanke >= blanks) { 88 if (line >= blanks) 89 line -= total; 90 } else { 91 if (line >= blanks) 92 line -= total; 93 line -= blanke + 1; 94 } 95 return line; 96 } 97 98 static int 99 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos, 100 ktime_t *stime, ktime_t *etime) 101 { 102 struct { 103 struct nv04_disp_mthd_v0 base; 104 struct nv04_disp_scanoutpos_v0 scan; 105 } args = { 106 .base.method = NV04_DISP_SCANOUTPOS, 107 .base.head = nouveau_crtc(crtc)->index, 108 }; 109 struct nouveau_display *disp = nouveau_display(crtc->dev); 110 struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)]; 111 int ret, retry = 1; 112 113 do { 114 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args)); 115 if (ret != 0) 116 return 0; 117 118 if (args.scan.vline) { 119 ret |= DRM_SCANOUTPOS_ACCURATE; 120 ret |= DRM_SCANOUTPOS_VALID; 121 break; 122 } 123 124 if (retry) ndelay(vblank->linedur_ns); 125 } while (retry--); 126 127 *hpos = args.scan.hline; 128 *vpos = calc(args.scan.vblanks, args.scan.vblanke, 129 args.scan.vtotal, args.scan.vline); 130 if (stime) *stime = ns_to_ktime(args.scan.time[0]); 131 if (etime) *etime = ns_to_ktime(args.scan.time[1]); 132 133 if (*vpos < 0) 134 ret |= DRM_SCANOUTPOS_IN_VBLANK; 135 return ret; 136 } 137 138 int 139 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe, 140 unsigned int flags, int *vpos, int *hpos, 141 ktime_t *stime, ktime_t *etime, 142 const struct drm_display_mode *mode) 143 { 144 struct drm_crtc *crtc; 145 146 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 147 if (nouveau_crtc(crtc)->index == pipe) { 148 return nouveau_display_scanoutpos_head(crtc, vpos, hpos, 149 stime, etime); 150 } 151 } 152 153 return 0; 154 } 155 156 int 157 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe, 158 int *max_error, struct timeval *time, unsigned flags) 159 { 160 struct drm_crtc *crtc; 161 162 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 163 if (nouveau_crtc(crtc)->index == pipe) { 164 struct drm_display_mode *mode; 165 if (dev->mode_config.funcs->atomic_commit) 166 mode = &crtc->state->adjusted_mode; 167 else 168 mode = &crtc->hwmode; 169 return drm_calc_vbltimestamp_from_scanoutpos(dev, 170 pipe, max_error, time, flags, mode); 171 } 172 } 173 174 return -EINVAL; 175 } 176 177 static void 178 nouveau_display_vblank_fini(struct drm_device *dev) 179 { 180 struct drm_crtc *crtc; 181 182 drm_vblank_cleanup(dev); 183 184 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 185 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 186 nvif_notify_fini(&nv_crtc->vblank); 187 } 188 } 189 190 static int 191 nouveau_display_vblank_init(struct drm_device *dev) 192 { 193 struct nouveau_display *disp = nouveau_display(dev); 194 struct drm_crtc *crtc; 195 int ret; 196 197 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 198 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 199 ret = nvif_notify_init(&disp->disp, 200 nouveau_display_vblank_handler, false, 201 NV04_DISP_NTFY_VBLANK, 202 &(struct nvif_notify_head_req_v0) { 203 .head = nv_crtc->index, 204 }, 205 sizeof(struct nvif_notify_head_req_v0), 206 sizeof(struct nvif_notify_head_rep_v0), 207 &nv_crtc->vblank); 208 if (ret) { 209 nouveau_display_vblank_fini(dev); 210 return ret; 211 } 212 } 213 214 ret = drm_vblank_init(dev, dev->mode_config.num_crtc); 215 if (ret) { 216 nouveau_display_vblank_fini(dev); 217 return ret; 218 } 219 220 return 0; 221 } 222 223 static void 224 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb) 225 { 226 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 227 228 if (fb->nvbo) 229 drm_gem_object_unreference_unlocked(&fb->nvbo->gem); 230 231 drm_framebuffer_cleanup(drm_fb); 232 kfree(fb); 233 } 234 235 static int 236 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb, 237 struct drm_file *file_priv, 238 unsigned int *handle) 239 { 240 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 241 242 return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle); 243 } 244 245 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = { 246 .destroy = nouveau_user_framebuffer_destroy, 247 .create_handle = nouveau_user_framebuffer_create_handle, 248 }; 249 250 int 251 nouveau_framebuffer_new(struct drm_device *dev, 252 const struct drm_mode_fb_cmd2 *mode_cmd, 253 struct nouveau_bo *nvbo, 254 struct nouveau_framebuffer **pfb) 255 { 256 struct nouveau_framebuffer *fb; 257 int ret; 258 259 if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL))) 260 return -ENOMEM; 261 262 drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd); 263 fb->nvbo = nvbo; 264 265 ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs); 266 if (ret) 267 kfree(fb); 268 return ret; 269 } 270 271 struct drm_framebuffer * 272 nouveau_user_framebuffer_create(struct drm_device *dev, 273 struct drm_file *file_priv, 274 const struct drm_mode_fb_cmd2 *mode_cmd) 275 { 276 struct nouveau_framebuffer *fb; 277 struct nouveau_bo *nvbo; 278 struct drm_gem_object *gem; 279 int ret; 280 281 gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 282 if (!gem) 283 return ERR_PTR(-ENOENT); 284 nvbo = nouveau_gem_object(gem); 285 286 ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb); 287 if (ret == 0) 288 return &fb->base; 289 290 drm_gem_object_unreference_unlocked(gem); 291 return ERR_PTR(ret); 292 } 293 294 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = { 295 .fb_create = nouveau_user_framebuffer_create, 296 .output_poll_changed = nouveau_fbcon_output_poll_changed, 297 }; 298 299 300 struct nouveau_drm_prop_enum_list { 301 u8 gen_mask; 302 int type; 303 char *name; 304 }; 305 306 static struct nouveau_drm_prop_enum_list underscan[] = { 307 { 6, UNDERSCAN_AUTO, "auto" }, 308 { 6, UNDERSCAN_OFF, "off" }, 309 { 6, UNDERSCAN_ON, "on" }, 310 {} 311 }; 312 313 static struct nouveau_drm_prop_enum_list dither_mode[] = { 314 { 7, DITHERING_MODE_AUTO, "auto" }, 315 { 7, DITHERING_MODE_OFF, "off" }, 316 { 1, DITHERING_MODE_ON, "on" }, 317 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" }, 318 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" }, 319 { 4, DITHERING_MODE_TEMPORAL, "temporal" }, 320 {} 321 }; 322 323 static struct nouveau_drm_prop_enum_list dither_depth[] = { 324 { 6, DITHERING_DEPTH_AUTO, "auto" }, 325 { 6, DITHERING_DEPTH_6BPC, "6 bpc" }, 326 { 6, DITHERING_DEPTH_8BPC, "8 bpc" }, 327 {} 328 }; 329 330 #define PROP_ENUM(p,gen,n,list) do { \ 331 struct nouveau_drm_prop_enum_list *l = (list); \ 332 int c = 0; \ 333 while (l->gen_mask) { \ 334 if (l->gen_mask & (1 << (gen))) \ 335 c++; \ 336 l++; \ 337 } \ 338 if (c) { \ 339 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \ 340 l = (list); \ 341 c = 0; \ 342 while (p && l->gen_mask) { \ 343 if (l->gen_mask & (1 << (gen))) { \ 344 drm_property_add_enum(p, c, l->type, l->name); \ 345 c++; \ 346 } \ 347 l++; \ 348 } \ 349 } \ 350 } while(0) 351 352 static void 353 nouveau_display_hpd_work(struct work_struct *work) 354 { 355 struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work); 356 357 pm_runtime_get_sync(drm->dev->dev); 358 359 drm_helper_hpd_irq_event(drm->dev); 360 361 pm_runtime_mark_last_busy(drm->dev->dev); 362 pm_runtime_put_sync(drm->dev->dev); 363 } 364 365 #ifdef CONFIG_ACPI 366 367 /* 368 * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch 369 * to the acpi subsys to move it there from drivers/acpi/acpi_video.c . 370 * This should be dropped once that is merged. 371 */ 372 #ifndef ACPI_VIDEO_NOTIFY_PROBE 373 #define ACPI_VIDEO_NOTIFY_PROBE 0x81 374 #endif 375 376 static int 377 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val, 378 void *data) 379 { 380 struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb); 381 struct acpi_bus_event *info = data; 382 383 if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) { 384 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) { 385 /* 386 * This may be the only indication we receive of a 387 * connector hotplug on a runtime suspended GPU, 388 * schedule hpd_work to check. 389 */ 390 schedule_work(&drm->hpd_work); 391 392 /* acpi-video should not generate keypresses for this */ 393 return NOTIFY_BAD; 394 } 395 } 396 397 return NOTIFY_DONE; 398 } 399 #endif 400 401 int 402 nouveau_display_init(struct drm_device *dev) 403 { 404 struct nouveau_display *disp = nouveau_display(dev); 405 struct nouveau_drm *drm = nouveau_drm(dev); 406 struct drm_connector *connector; 407 int ret; 408 409 ret = disp->init(dev); 410 if (ret) 411 return ret; 412 413 /* enable polling for external displays */ 414 drm_kms_helper_poll_enable(dev); 415 416 /* enable hotplug interrupts */ 417 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 418 struct nouveau_connector *conn = nouveau_connector(connector); 419 nvif_notify_get(&conn->hpd); 420 } 421 422 /* enable flip completion events */ 423 nvif_notify_get(&drm->flip); 424 return ret; 425 } 426 427 void 428 nouveau_display_fini(struct drm_device *dev, bool suspend) 429 { 430 struct nouveau_display *disp = nouveau_display(dev); 431 struct nouveau_drm *drm = nouveau_drm(dev); 432 struct drm_connector *connector; 433 struct drm_crtc *crtc; 434 435 if (!suspend) 436 drm_crtc_force_disable_all(dev); 437 438 /* Make sure that drm and hw vblank irqs get properly disabled. */ 439 drm_for_each_crtc(crtc, dev) 440 drm_crtc_vblank_off(crtc); 441 442 /* disable flip completion events */ 443 nvif_notify_put(&drm->flip); 444 445 /* disable hotplug interrupts */ 446 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 447 struct nouveau_connector *conn = nouveau_connector(connector); 448 nvif_notify_put(&conn->hpd); 449 } 450 451 drm_kms_helper_poll_disable(dev); 452 disp->fini(dev); 453 } 454 455 static void 456 nouveau_display_create_properties(struct drm_device *dev) 457 { 458 struct nouveau_display *disp = nouveau_display(dev); 459 int gen; 460 461 if (disp->disp.oclass < NV50_DISP) 462 gen = 0; 463 else 464 if (disp->disp.oclass < GF110_DISP) 465 gen = 1; 466 else 467 gen = 2; 468 469 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode); 470 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth); 471 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan); 472 473 disp->underscan_hborder_property = 474 drm_property_create_range(dev, 0, "underscan hborder", 0, 128); 475 476 disp->underscan_vborder_property = 477 drm_property_create_range(dev, 0, "underscan vborder", 0, 128); 478 479 if (gen < 1) 480 return; 481 482 /* -90..+90 */ 483 disp->vibrant_hue_property = 484 drm_property_create_range(dev, 0, "vibrant hue", 0, 180); 485 486 /* -100..+100 */ 487 disp->color_vibrance_property = 488 drm_property_create_range(dev, 0, "color vibrance", 0, 200); 489 } 490 491 int 492 nouveau_display_create(struct drm_device *dev) 493 { 494 struct nouveau_drm *drm = nouveau_drm(dev); 495 struct nvkm_device *device = nvxx_device(&drm->device); 496 struct nouveau_display *disp; 497 int ret; 498 499 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL); 500 if (!disp) 501 return -ENOMEM; 502 503 drm_mode_config_init(dev); 504 drm_mode_create_scaling_mode_property(dev); 505 drm_mode_create_dvi_i_properties(dev); 506 507 dev->mode_config.funcs = &nouveau_mode_config_funcs; 508 dev->mode_config.fb_base = device->func->resource_addr(device, 1); 509 510 dev->mode_config.min_width = 0; 511 dev->mode_config.min_height = 0; 512 if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) { 513 dev->mode_config.max_width = 2048; 514 dev->mode_config.max_height = 2048; 515 } else 516 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 517 dev->mode_config.max_width = 4096; 518 dev->mode_config.max_height = 4096; 519 } else 520 if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) { 521 dev->mode_config.max_width = 8192; 522 dev->mode_config.max_height = 8192; 523 } else { 524 dev->mode_config.max_width = 16384; 525 dev->mode_config.max_height = 16384; 526 } 527 528 dev->mode_config.preferred_depth = 24; 529 dev->mode_config.prefer_shadow = 1; 530 531 if (drm->device.info.chipset < 0x11) 532 dev->mode_config.async_page_flip = false; 533 else 534 dev->mode_config.async_page_flip = true; 535 536 drm_kms_helper_poll_init(dev); 537 drm_kms_helper_poll_disable(dev); 538 539 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) { 540 static const u16 oclass[] = { 541 GP102_DISP, 542 GP100_DISP, 543 GM200_DISP, 544 GM107_DISP, 545 GK110_DISP, 546 GK104_DISP, 547 GF110_DISP, 548 GT214_DISP, 549 GT206_DISP, 550 GT200_DISP, 551 G82_DISP, 552 NV50_DISP, 553 NV04_DISP, 554 }; 555 int i; 556 557 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) { 558 ret = nvif_object_init(&drm->device.object, 0, 559 oclass[i], NULL, 0, &disp->disp); 560 } 561 562 if (ret == 0) { 563 nouveau_display_create_properties(dev); 564 if (disp->disp.oclass < NV50_DISP) 565 ret = nv04_display_create(dev); 566 else 567 ret = nv50_display_create(dev); 568 } 569 } else { 570 ret = 0; 571 } 572 573 if (ret) 574 goto disp_create_err; 575 576 drm_mode_config_reset(dev); 577 578 if (dev->mode_config.num_crtc) { 579 ret = nouveau_display_vblank_init(dev); 580 if (ret) 581 goto vblank_err; 582 } 583 584 nouveau_backlight_init(dev); 585 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work); 586 #ifdef CONFIG_ACPI 587 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy; 588 register_acpi_notifier(&drm->acpi_nb); 589 #endif 590 591 return 0; 592 593 vblank_err: 594 disp->dtor(dev); 595 disp_create_err: 596 drm_kms_helper_poll_fini(dev); 597 drm_mode_config_cleanup(dev); 598 return ret; 599 } 600 601 void 602 nouveau_display_destroy(struct drm_device *dev) 603 { 604 struct nouveau_display *disp = nouveau_display(dev); 605 606 #ifdef CONFIG_ACPI 607 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb); 608 #endif 609 nouveau_backlight_exit(dev); 610 nouveau_display_vblank_fini(dev); 611 612 drm_kms_helper_poll_fini(dev); 613 drm_mode_config_cleanup(dev); 614 615 if (disp->dtor) 616 disp->dtor(dev); 617 618 nvif_object_fini(&disp->disp); 619 620 nouveau_drm(dev)->display = NULL; 621 kfree(disp); 622 } 623 624 static int 625 nouveau_atomic_disable_connector(struct drm_atomic_state *state, 626 struct drm_connector *connector) 627 { 628 struct drm_connector_state *connector_state; 629 struct drm_crtc *crtc; 630 struct drm_crtc_state *crtc_state; 631 struct drm_plane_state *plane_state; 632 struct drm_plane *plane; 633 int ret; 634 635 if (!(crtc = connector->state->crtc)) 636 return 0; 637 638 connector_state = drm_atomic_get_connector_state(state, connector); 639 if (IS_ERR(connector_state)) 640 return PTR_ERR(connector_state); 641 642 ret = drm_atomic_set_crtc_for_connector(connector_state, NULL); 643 if (ret) 644 return ret; 645 646 crtc_state = drm_atomic_get_crtc_state(state, crtc); 647 if (IS_ERR(crtc_state)) 648 return PTR_ERR(crtc_state); 649 650 ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL); 651 if (ret) 652 return ret; 653 654 crtc_state->active = false; 655 656 drm_for_each_plane_mask(plane, connector->dev, crtc_state->plane_mask) { 657 plane_state = drm_atomic_get_plane_state(state, plane); 658 if (IS_ERR(plane_state)) 659 return PTR_ERR(plane_state); 660 661 ret = drm_atomic_set_crtc_for_plane(plane_state, NULL); 662 if (ret) 663 return ret; 664 665 drm_atomic_set_fb_for_plane(plane_state, NULL); 666 } 667 668 return 0; 669 } 670 671 static int 672 nouveau_atomic_disable(struct drm_device *dev, 673 struct drm_modeset_acquire_ctx *ctx) 674 { 675 struct drm_atomic_state *state; 676 struct drm_connector *connector; 677 int ret; 678 679 state = drm_atomic_state_alloc(dev); 680 if (!state) 681 return -ENOMEM; 682 683 state->acquire_ctx = ctx; 684 685 drm_for_each_connector(connector, dev) { 686 ret = nouveau_atomic_disable_connector(state, connector); 687 if (ret) 688 break; 689 } 690 691 if (ret == 0) 692 ret = drm_atomic_commit(state); 693 drm_atomic_state_put(state); 694 return ret; 695 } 696 697 static struct drm_atomic_state * 698 nouveau_atomic_suspend(struct drm_device *dev) 699 { 700 struct drm_modeset_acquire_ctx ctx; 701 struct drm_atomic_state *state; 702 int ret; 703 704 drm_modeset_acquire_init(&ctx, 0); 705 706 retry: 707 ret = drm_modeset_lock_all_ctx(dev, &ctx); 708 if (ret < 0) { 709 state = ERR_PTR(ret); 710 goto unlock; 711 } 712 713 state = drm_atomic_helper_duplicate_state(dev, &ctx); 714 if (IS_ERR(state)) 715 goto unlock; 716 717 ret = nouveau_atomic_disable(dev, &ctx); 718 if (ret < 0) { 719 drm_atomic_state_put(state); 720 state = ERR_PTR(ret); 721 goto unlock; 722 } 723 724 unlock: 725 if (PTR_ERR(state) == -EDEADLK) { 726 drm_modeset_backoff(&ctx); 727 goto retry; 728 } 729 730 drm_modeset_drop_locks(&ctx); 731 drm_modeset_acquire_fini(&ctx); 732 return state; 733 } 734 735 int 736 nouveau_display_suspend(struct drm_device *dev, bool runtime) 737 { 738 struct nouveau_display *disp = nouveau_display(dev); 739 struct drm_crtc *crtc; 740 741 if (dev->mode_config.funcs->atomic_commit) { 742 if (!runtime) { 743 disp->suspend = nouveau_atomic_suspend(dev); 744 if (IS_ERR(disp->suspend)) { 745 int ret = PTR_ERR(disp->suspend); 746 disp->suspend = NULL; 747 return ret; 748 } 749 } 750 751 nouveau_display_fini(dev, true); 752 return 0; 753 } 754 755 nouveau_display_fini(dev, true); 756 757 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 758 struct nouveau_framebuffer *nouveau_fb; 759 760 nouveau_fb = nouveau_framebuffer(crtc->primary->fb); 761 if (!nouveau_fb || !nouveau_fb->nvbo) 762 continue; 763 764 nouveau_bo_unpin(nouveau_fb->nvbo); 765 } 766 767 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 768 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 769 if (nv_crtc->cursor.nvbo) { 770 if (nv_crtc->cursor.set_offset) 771 nouveau_bo_unmap(nv_crtc->cursor.nvbo); 772 nouveau_bo_unpin(nv_crtc->cursor.nvbo); 773 } 774 } 775 776 return 0; 777 } 778 779 void 780 nouveau_display_resume(struct drm_device *dev, bool runtime) 781 { 782 struct nouveau_display *disp = nouveau_display(dev); 783 struct nouveau_drm *drm = nouveau_drm(dev); 784 struct drm_crtc *crtc; 785 int ret; 786 787 if (dev->mode_config.funcs->atomic_commit) { 788 nouveau_display_init(dev); 789 if (disp->suspend) { 790 drm_atomic_helper_resume(dev, disp->suspend); 791 disp->suspend = NULL; 792 } 793 return; 794 } 795 796 /* re-pin fb/cursors */ 797 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 798 struct nouveau_framebuffer *nouveau_fb; 799 800 nouveau_fb = nouveau_framebuffer(crtc->primary->fb); 801 if (!nouveau_fb || !nouveau_fb->nvbo) 802 continue; 803 804 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true); 805 if (ret) 806 NV_ERROR(drm, "Could not pin framebuffer\n"); 807 } 808 809 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 810 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 811 if (!nv_crtc->cursor.nvbo) 812 continue; 813 814 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true); 815 if (!ret && nv_crtc->cursor.set_offset) 816 ret = nouveau_bo_map(nv_crtc->cursor.nvbo); 817 if (ret) 818 NV_ERROR(drm, "Could not pin/map cursor.\n"); 819 } 820 821 nouveau_display_init(dev); 822 823 /* Force CLUT to get re-loaded during modeset */ 824 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 825 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 826 827 nv_crtc->lut.depth = 0; 828 } 829 830 /* This should ensure we don't hit a locking problem when someone 831 * wakes us up via a connector. We should never go into suspend 832 * while the display is on anyways. 833 */ 834 if (runtime) 835 return; 836 837 drm_helper_resume_force_mode(dev); 838 839 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 840 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 841 842 if (!nv_crtc->cursor.nvbo) 843 continue; 844 845 if (nv_crtc->cursor.set_offset) 846 nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset); 847 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 848 nv_crtc->cursor_saved_y); 849 } 850 } 851 852 static int 853 nouveau_page_flip_emit(struct nouveau_channel *chan, 854 struct nouveau_bo *old_bo, 855 struct nouveau_bo *new_bo, 856 struct nouveau_page_flip_state *s, 857 struct nouveau_fence **pfence) 858 { 859 struct nouveau_fence_chan *fctx = chan->fence; 860 struct nouveau_drm *drm = chan->drm; 861 struct drm_device *dev = drm->dev; 862 unsigned long flags; 863 int ret; 864 865 /* Queue it to the pending list */ 866 spin_lock_irqsave(&dev->event_lock, flags); 867 list_add_tail(&s->head, &fctx->flip); 868 spin_unlock_irqrestore(&dev->event_lock, flags); 869 870 /* Synchronize with the old framebuffer */ 871 ret = nouveau_fence_sync(old_bo, chan, false, false); 872 if (ret) 873 goto fail; 874 875 /* Emit the pageflip */ 876 ret = RING_SPACE(chan, 2); 877 if (ret) 878 goto fail; 879 880 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1); 881 OUT_RING (chan, 0x00000000); 882 FIRE_RING (chan); 883 884 ret = nouveau_fence_new(chan, false, pfence); 885 if (ret) 886 goto fail; 887 888 return 0; 889 fail: 890 spin_lock_irqsave(&dev->event_lock, flags); 891 list_del(&s->head); 892 spin_unlock_irqrestore(&dev->event_lock, flags); 893 return ret; 894 } 895 896 int 897 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, 898 struct drm_pending_vblank_event *event, u32 flags) 899 { 900 const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1; 901 struct drm_device *dev = crtc->dev; 902 struct nouveau_drm *drm = nouveau_drm(dev); 903 struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo; 904 struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo; 905 struct nouveau_page_flip_state *s; 906 struct nouveau_channel *chan; 907 struct nouveau_cli *cli; 908 struct nouveau_fence *fence; 909 struct nv04_display *dispnv04 = nv04_display(dev); 910 int head = nouveau_crtc(crtc)->index; 911 int ret; 912 913 chan = drm->channel; 914 if (!chan) 915 return -ENODEV; 916 cli = (void *)chan->user.client; 917 918 s = kzalloc(sizeof(*s), GFP_KERNEL); 919 if (!s) 920 return -ENOMEM; 921 922 if (new_bo != old_bo) { 923 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true); 924 if (ret) 925 goto fail_free; 926 } 927 928 mutex_lock(&cli->mutex); 929 ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL); 930 if (ret) 931 goto fail_unpin; 932 933 /* synchronise rendering channel with the kernel's channel */ 934 ret = nouveau_fence_sync(new_bo, chan, false, true); 935 if (ret) { 936 ttm_bo_unreserve(&new_bo->bo); 937 goto fail_unpin; 938 } 939 940 if (new_bo != old_bo) { 941 ttm_bo_unreserve(&new_bo->bo); 942 943 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL); 944 if (ret) 945 goto fail_unpin; 946 } 947 948 /* Initialize a page flip struct */ 949 *s = (struct nouveau_page_flip_state) 950 { { }, event, crtc, fb->bits_per_pixel, fb->pitches[0], 951 new_bo->bo.offset }; 952 953 /* Keep vblanks on during flip, for the target crtc of this flip */ 954 drm_crtc_vblank_get(crtc); 955 956 /* Emit a page flip */ 957 if (swap_interval) { 958 ret = RING_SPACE(chan, 8); 959 if (ret) 960 goto fail_unreserve; 961 962 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1); 963 OUT_RING (chan, 0); 964 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1); 965 OUT_RING (chan, head); 966 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1); 967 OUT_RING (chan, 0); 968 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1); 969 OUT_RING (chan, 0); 970 } 971 972 nouveau_bo_ref(new_bo, &dispnv04->image[head]); 973 974 ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence); 975 if (ret) 976 goto fail_unreserve; 977 mutex_unlock(&cli->mutex); 978 979 /* Update the crtc struct and cleanup */ 980 crtc->primary->fb = fb; 981 982 nouveau_bo_fence(old_bo, fence, false); 983 ttm_bo_unreserve(&old_bo->bo); 984 if (old_bo != new_bo) 985 nouveau_bo_unpin(old_bo); 986 nouveau_fence_unref(&fence); 987 return 0; 988 989 fail_unreserve: 990 drm_crtc_vblank_put(crtc); 991 ttm_bo_unreserve(&old_bo->bo); 992 fail_unpin: 993 mutex_unlock(&cli->mutex); 994 if (old_bo != new_bo) 995 nouveau_bo_unpin(new_bo); 996 fail_free: 997 kfree(s); 998 return ret; 999 } 1000 1001 int 1002 nouveau_finish_page_flip(struct nouveau_channel *chan, 1003 struct nouveau_page_flip_state *ps) 1004 { 1005 struct nouveau_fence_chan *fctx = chan->fence; 1006 struct nouveau_drm *drm = chan->drm; 1007 struct drm_device *dev = drm->dev; 1008 struct nouveau_page_flip_state *s; 1009 unsigned long flags; 1010 1011 spin_lock_irqsave(&dev->event_lock, flags); 1012 1013 if (list_empty(&fctx->flip)) { 1014 NV_ERROR(drm, "unexpected pageflip\n"); 1015 spin_unlock_irqrestore(&dev->event_lock, flags); 1016 return -EINVAL; 1017 } 1018 1019 s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head); 1020 if (s->event) { 1021 drm_crtc_arm_vblank_event(s->crtc, s->event); 1022 } else { 1023 /* Give up ownership of vblank for page-flipped crtc */ 1024 drm_crtc_vblank_put(s->crtc); 1025 } 1026 1027 list_del(&s->head); 1028 if (ps) 1029 *ps = *s; 1030 kfree(s); 1031 1032 spin_unlock_irqrestore(&dev->event_lock, flags); 1033 return 0; 1034 } 1035 1036 int 1037 nouveau_flip_complete(struct nvif_notify *notify) 1038 { 1039 struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip); 1040 struct nouveau_channel *chan = drm->channel; 1041 struct nouveau_page_flip_state state; 1042 1043 if (!nouveau_finish_page_flip(chan, &state)) { 1044 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc), 1045 state.offset + state.crtc->y * 1046 state.pitch + state.crtc->x * 1047 state.bpp / 8); 1048 } 1049 1050 return NVIF_NOTIFY_KEEP; 1051 } 1052 1053 int 1054 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, 1055 struct drm_mode_create_dumb *args) 1056 { 1057 struct nouveau_bo *bo; 1058 uint32_t domain; 1059 int ret; 1060 1061 args->pitch = roundup(args->width * (args->bpp / 8), 256); 1062 args->size = args->pitch * args->height; 1063 args->size = roundup(args->size, PAGE_SIZE); 1064 1065 /* Use VRAM if there is any ; otherwise fallback to system memory */ 1066 if (nouveau_drm(dev)->device.info.ram_size != 0) 1067 domain = NOUVEAU_GEM_DOMAIN_VRAM; 1068 else 1069 domain = NOUVEAU_GEM_DOMAIN_GART; 1070 1071 ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo); 1072 if (ret) 1073 return ret; 1074 1075 ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle); 1076 drm_gem_object_unreference_unlocked(&bo->gem); 1077 return ret; 1078 } 1079 1080 int 1081 nouveau_display_dumb_map_offset(struct drm_file *file_priv, 1082 struct drm_device *dev, 1083 uint32_t handle, uint64_t *poffset) 1084 { 1085 struct drm_gem_object *gem; 1086 1087 gem = drm_gem_object_lookup(file_priv, handle); 1088 if (gem) { 1089 struct nouveau_bo *bo = nouveau_gem_object(gem); 1090 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node); 1091 drm_gem_object_unreference_unlocked(gem); 1092 return 0; 1093 } 1094 1095 return -ENOENT; 1096 } 1097