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 if (!dev->mode_config.poll_enabled) 415 drm_kms_helper_poll_enable(dev); 416 417 /* enable hotplug interrupts */ 418 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 419 struct nouveau_connector *conn = nouveau_connector(connector); 420 nvif_notify_get(&conn->hpd); 421 } 422 423 /* enable flip completion events */ 424 nvif_notify_get(&drm->flip); 425 return ret; 426 } 427 428 void 429 nouveau_display_fini(struct drm_device *dev, bool suspend) 430 { 431 struct nouveau_display *disp = nouveau_display(dev); 432 struct nouveau_drm *drm = nouveau_drm(dev); 433 struct drm_connector *connector; 434 struct drm_crtc *crtc; 435 436 if (!suspend) 437 drm_crtc_force_disable_all(dev); 438 439 /* Make sure that drm and hw vblank irqs get properly disabled. */ 440 drm_for_each_crtc(crtc, dev) 441 drm_crtc_vblank_off(crtc); 442 443 /* disable flip completion events */ 444 nvif_notify_put(&drm->flip); 445 446 /* disable hotplug interrupts */ 447 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 448 struct nouveau_connector *conn = nouveau_connector(connector); 449 nvif_notify_put(&conn->hpd); 450 } 451 452 drm_kms_helper_poll_disable(dev); 453 disp->fini(dev); 454 } 455 456 static void 457 nouveau_display_create_properties(struct drm_device *dev) 458 { 459 struct nouveau_display *disp = nouveau_display(dev); 460 int gen; 461 462 if (disp->disp.oclass < NV50_DISP) 463 gen = 0; 464 else 465 if (disp->disp.oclass < GF110_DISP) 466 gen = 1; 467 else 468 gen = 2; 469 470 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode); 471 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth); 472 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan); 473 474 disp->underscan_hborder_property = 475 drm_property_create_range(dev, 0, "underscan hborder", 0, 128); 476 477 disp->underscan_vborder_property = 478 drm_property_create_range(dev, 0, "underscan vborder", 0, 128); 479 480 if (gen < 1) 481 return; 482 483 /* -90..+90 */ 484 disp->vibrant_hue_property = 485 drm_property_create_range(dev, 0, "vibrant hue", 0, 180); 486 487 /* -100..+100 */ 488 disp->color_vibrance_property = 489 drm_property_create_range(dev, 0, "color vibrance", 0, 200); 490 } 491 492 int 493 nouveau_display_create(struct drm_device *dev) 494 { 495 struct nouveau_drm *drm = nouveau_drm(dev); 496 struct nvkm_device *device = nvxx_device(&drm->device); 497 struct nouveau_display *disp; 498 int ret; 499 500 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL); 501 if (!disp) 502 return -ENOMEM; 503 504 drm_mode_config_init(dev); 505 drm_mode_create_scaling_mode_property(dev); 506 drm_mode_create_dvi_i_properties(dev); 507 508 dev->mode_config.funcs = &nouveau_mode_config_funcs; 509 dev->mode_config.fb_base = device->func->resource_addr(device, 1); 510 511 dev->mode_config.min_width = 0; 512 dev->mode_config.min_height = 0; 513 if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) { 514 dev->mode_config.max_width = 2048; 515 dev->mode_config.max_height = 2048; 516 } else 517 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) { 518 dev->mode_config.max_width = 4096; 519 dev->mode_config.max_height = 4096; 520 } else 521 if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) { 522 dev->mode_config.max_width = 8192; 523 dev->mode_config.max_height = 8192; 524 } else { 525 dev->mode_config.max_width = 16384; 526 dev->mode_config.max_height = 16384; 527 } 528 529 dev->mode_config.preferred_depth = 24; 530 dev->mode_config.prefer_shadow = 1; 531 532 if (drm->device.info.chipset < 0x11) 533 dev->mode_config.async_page_flip = false; 534 else 535 dev->mode_config.async_page_flip = true; 536 537 drm_kms_helper_poll_init(dev); 538 drm_kms_helper_poll_disable(dev); 539 540 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) { 541 static const u16 oclass[] = { 542 GP102_DISP, 543 GP100_DISP, 544 GM200_DISP, 545 GM107_DISP, 546 GK110_DISP, 547 GK104_DISP, 548 GF110_DISP, 549 GT214_DISP, 550 GT206_DISP, 551 GT200_DISP, 552 G82_DISP, 553 NV50_DISP, 554 NV04_DISP, 555 }; 556 int i; 557 558 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) { 559 ret = nvif_object_init(&drm->device.object, 0, 560 oclass[i], NULL, 0, &disp->disp); 561 } 562 563 if (ret == 0) { 564 nouveau_display_create_properties(dev); 565 if (disp->disp.oclass < NV50_DISP) 566 ret = nv04_display_create(dev); 567 else 568 ret = nv50_display_create(dev); 569 } 570 } else { 571 ret = 0; 572 } 573 574 if (ret) 575 goto disp_create_err; 576 577 drm_mode_config_reset(dev); 578 579 if (dev->mode_config.num_crtc) { 580 ret = nouveau_display_vblank_init(dev); 581 if (ret) 582 goto vblank_err; 583 } 584 585 nouveau_backlight_init(dev); 586 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work); 587 #ifdef CONFIG_ACPI 588 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy; 589 register_acpi_notifier(&drm->acpi_nb); 590 #endif 591 592 return 0; 593 594 vblank_err: 595 disp->dtor(dev); 596 disp_create_err: 597 drm_kms_helper_poll_fini(dev); 598 drm_mode_config_cleanup(dev); 599 return ret; 600 } 601 602 void 603 nouveau_display_destroy(struct drm_device *dev) 604 { 605 struct nouveau_display *disp = nouveau_display(dev); 606 607 #ifdef CONFIG_ACPI 608 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb); 609 #endif 610 nouveau_backlight_exit(dev); 611 nouveau_display_vblank_fini(dev); 612 613 drm_kms_helper_poll_fini(dev); 614 drm_mode_config_cleanup(dev); 615 616 if (disp->dtor) 617 disp->dtor(dev); 618 619 nvif_object_fini(&disp->disp); 620 621 nouveau_drm(dev)->display = NULL; 622 kfree(disp); 623 } 624 625 static int 626 nouveau_atomic_disable_connector(struct drm_atomic_state *state, 627 struct drm_connector *connector) 628 { 629 struct drm_connector_state *connector_state; 630 struct drm_crtc *crtc; 631 struct drm_crtc_state *crtc_state; 632 struct drm_plane_state *plane_state; 633 struct drm_plane *plane; 634 int ret; 635 636 if (!(crtc = connector->state->crtc)) 637 return 0; 638 639 connector_state = drm_atomic_get_connector_state(state, connector); 640 if (IS_ERR(connector_state)) 641 return PTR_ERR(connector_state); 642 643 ret = drm_atomic_set_crtc_for_connector(connector_state, NULL); 644 if (ret) 645 return ret; 646 647 crtc_state = drm_atomic_get_crtc_state(state, crtc); 648 if (IS_ERR(crtc_state)) 649 return PTR_ERR(crtc_state); 650 651 ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL); 652 if (ret) 653 return ret; 654 655 crtc_state->active = false; 656 657 drm_for_each_plane_mask(plane, connector->dev, crtc_state->plane_mask) { 658 plane_state = drm_atomic_get_plane_state(state, plane); 659 if (IS_ERR(plane_state)) 660 return PTR_ERR(plane_state); 661 662 ret = drm_atomic_set_crtc_for_plane(plane_state, NULL); 663 if (ret) 664 return ret; 665 666 drm_atomic_set_fb_for_plane(plane_state, NULL); 667 } 668 669 return 0; 670 } 671 672 static int 673 nouveau_atomic_disable(struct drm_device *dev, 674 struct drm_modeset_acquire_ctx *ctx) 675 { 676 struct drm_atomic_state *state; 677 struct drm_connector *connector; 678 int ret; 679 680 state = drm_atomic_state_alloc(dev); 681 if (!state) 682 return -ENOMEM; 683 684 state->acquire_ctx = ctx; 685 686 drm_for_each_connector(connector, dev) { 687 ret = nouveau_atomic_disable_connector(state, connector); 688 if (ret) 689 break; 690 } 691 692 if (ret == 0) 693 ret = drm_atomic_commit(state); 694 drm_atomic_state_put(state); 695 return ret; 696 } 697 698 static struct drm_atomic_state * 699 nouveau_atomic_suspend(struct drm_device *dev) 700 { 701 struct drm_modeset_acquire_ctx ctx; 702 struct drm_atomic_state *state; 703 int ret; 704 705 drm_modeset_acquire_init(&ctx, 0); 706 707 retry: 708 ret = drm_modeset_lock_all_ctx(dev, &ctx); 709 if (ret < 0) { 710 state = ERR_PTR(ret); 711 goto unlock; 712 } 713 714 state = drm_atomic_helper_duplicate_state(dev, &ctx); 715 if (IS_ERR(state)) 716 goto unlock; 717 718 ret = nouveau_atomic_disable(dev, &ctx); 719 if (ret < 0) { 720 drm_atomic_state_put(state); 721 state = ERR_PTR(ret); 722 goto unlock; 723 } 724 725 unlock: 726 if (PTR_ERR(state) == -EDEADLK) { 727 drm_modeset_backoff(&ctx); 728 goto retry; 729 } 730 731 drm_modeset_drop_locks(&ctx); 732 drm_modeset_acquire_fini(&ctx); 733 return state; 734 } 735 736 int 737 nouveau_display_suspend(struct drm_device *dev, bool runtime) 738 { 739 struct nouveau_display *disp = nouveau_display(dev); 740 struct drm_crtc *crtc; 741 742 if (dev->mode_config.funcs->atomic_commit) { 743 if (!runtime) { 744 disp->suspend = nouveau_atomic_suspend(dev); 745 if (IS_ERR(disp->suspend)) { 746 int ret = PTR_ERR(disp->suspend); 747 disp->suspend = NULL; 748 return ret; 749 } 750 } 751 752 nouveau_display_fini(dev, true); 753 return 0; 754 } 755 756 nouveau_display_fini(dev, true); 757 758 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 759 struct nouveau_framebuffer *nouveau_fb; 760 761 nouveau_fb = nouveau_framebuffer(crtc->primary->fb); 762 if (!nouveau_fb || !nouveau_fb->nvbo) 763 continue; 764 765 nouveau_bo_unpin(nouveau_fb->nvbo); 766 } 767 768 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 769 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 770 if (nv_crtc->cursor.nvbo) { 771 if (nv_crtc->cursor.set_offset) 772 nouveau_bo_unmap(nv_crtc->cursor.nvbo); 773 nouveau_bo_unpin(nv_crtc->cursor.nvbo); 774 } 775 } 776 777 return 0; 778 } 779 780 void 781 nouveau_display_resume(struct drm_device *dev, bool runtime) 782 { 783 struct nouveau_display *disp = nouveau_display(dev); 784 struct nouveau_drm *drm = nouveau_drm(dev); 785 struct drm_crtc *crtc; 786 int ret; 787 788 if (dev->mode_config.funcs->atomic_commit) { 789 nouveau_display_init(dev); 790 if (disp->suspend) { 791 drm_atomic_helper_resume(dev, disp->suspend); 792 disp->suspend = NULL; 793 } 794 return; 795 } 796 797 /* re-pin fb/cursors */ 798 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 799 struct nouveau_framebuffer *nouveau_fb; 800 801 nouveau_fb = nouveau_framebuffer(crtc->primary->fb); 802 if (!nouveau_fb || !nouveau_fb->nvbo) 803 continue; 804 805 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true); 806 if (ret) 807 NV_ERROR(drm, "Could not pin framebuffer\n"); 808 } 809 810 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 811 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 812 if (!nv_crtc->cursor.nvbo) 813 continue; 814 815 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true); 816 if (!ret && nv_crtc->cursor.set_offset) 817 ret = nouveau_bo_map(nv_crtc->cursor.nvbo); 818 if (ret) 819 NV_ERROR(drm, "Could not pin/map cursor.\n"); 820 } 821 822 nouveau_display_init(dev); 823 824 /* Force CLUT to get re-loaded during modeset */ 825 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 826 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 827 828 nv_crtc->lut.depth = 0; 829 } 830 831 /* This should ensure we don't hit a locking problem when someone 832 * wakes us up via a connector. We should never go into suspend 833 * while the display is on anyways. 834 */ 835 if (runtime) 836 return; 837 838 drm_helper_resume_force_mode(dev); 839 840 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 841 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 842 843 if (!nv_crtc->cursor.nvbo) 844 continue; 845 846 if (nv_crtc->cursor.set_offset) 847 nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset); 848 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x, 849 nv_crtc->cursor_saved_y); 850 } 851 } 852 853 static int 854 nouveau_page_flip_emit(struct nouveau_channel *chan, 855 struct nouveau_bo *old_bo, 856 struct nouveau_bo *new_bo, 857 struct nouveau_page_flip_state *s, 858 struct nouveau_fence **pfence) 859 { 860 struct nouveau_fence_chan *fctx = chan->fence; 861 struct nouveau_drm *drm = chan->drm; 862 struct drm_device *dev = drm->dev; 863 unsigned long flags; 864 int ret; 865 866 /* Queue it to the pending list */ 867 spin_lock_irqsave(&dev->event_lock, flags); 868 list_add_tail(&s->head, &fctx->flip); 869 spin_unlock_irqrestore(&dev->event_lock, flags); 870 871 /* Synchronize with the old framebuffer */ 872 ret = nouveau_fence_sync(old_bo, chan, false, false); 873 if (ret) 874 goto fail; 875 876 /* Emit the pageflip */ 877 ret = RING_SPACE(chan, 2); 878 if (ret) 879 goto fail; 880 881 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1); 882 OUT_RING (chan, 0x00000000); 883 FIRE_RING (chan); 884 885 ret = nouveau_fence_new(chan, false, pfence); 886 if (ret) 887 goto fail; 888 889 return 0; 890 fail: 891 spin_lock_irqsave(&dev->event_lock, flags); 892 list_del(&s->head); 893 spin_unlock_irqrestore(&dev->event_lock, flags); 894 return ret; 895 } 896 897 int 898 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, 899 struct drm_pending_vblank_event *event, u32 flags) 900 { 901 const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1; 902 struct drm_device *dev = crtc->dev; 903 struct nouveau_drm *drm = nouveau_drm(dev); 904 struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo; 905 struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo; 906 struct nouveau_page_flip_state *s; 907 struct nouveau_channel *chan; 908 struct nouveau_cli *cli; 909 struct nouveau_fence *fence; 910 struct nv04_display *dispnv04 = nv04_display(dev); 911 int head = nouveau_crtc(crtc)->index; 912 int ret; 913 914 chan = drm->channel; 915 if (!chan) 916 return -ENODEV; 917 cli = (void *)chan->user.client; 918 919 s = kzalloc(sizeof(*s), GFP_KERNEL); 920 if (!s) 921 return -ENOMEM; 922 923 if (new_bo != old_bo) { 924 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true); 925 if (ret) 926 goto fail_free; 927 } 928 929 mutex_lock(&cli->mutex); 930 ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL); 931 if (ret) 932 goto fail_unpin; 933 934 /* synchronise rendering channel with the kernel's channel */ 935 ret = nouveau_fence_sync(new_bo, chan, false, true); 936 if (ret) { 937 ttm_bo_unreserve(&new_bo->bo); 938 goto fail_unpin; 939 } 940 941 if (new_bo != old_bo) { 942 ttm_bo_unreserve(&new_bo->bo); 943 944 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL); 945 if (ret) 946 goto fail_unpin; 947 } 948 949 /* Initialize a page flip struct */ 950 *s = (struct nouveau_page_flip_state) 951 { { }, event, crtc, fb->bits_per_pixel, fb->pitches[0], 952 new_bo->bo.offset }; 953 954 /* Keep vblanks on during flip, for the target crtc of this flip */ 955 drm_crtc_vblank_get(crtc); 956 957 /* Emit a page flip */ 958 if (swap_interval) { 959 ret = RING_SPACE(chan, 8); 960 if (ret) 961 goto fail_unreserve; 962 963 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1); 964 OUT_RING (chan, 0); 965 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1); 966 OUT_RING (chan, head); 967 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1); 968 OUT_RING (chan, 0); 969 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1); 970 OUT_RING (chan, 0); 971 } 972 973 nouveau_bo_ref(new_bo, &dispnv04->image[head]); 974 975 ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence); 976 if (ret) 977 goto fail_unreserve; 978 mutex_unlock(&cli->mutex); 979 980 /* Update the crtc struct and cleanup */ 981 crtc->primary->fb = fb; 982 983 nouveau_bo_fence(old_bo, fence, false); 984 ttm_bo_unreserve(&old_bo->bo); 985 if (old_bo != new_bo) 986 nouveau_bo_unpin(old_bo); 987 nouveau_fence_unref(&fence); 988 return 0; 989 990 fail_unreserve: 991 drm_crtc_vblank_put(crtc); 992 ttm_bo_unreserve(&old_bo->bo); 993 fail_unpin: 994 mutex_unlock(&cli->mutex); 995 if (old_bo != new_bo) 996 nouveau_bo_unpin(new_bo); 997 fail_free: 998 kfree(s); 999 return ret; 1000 } 1001 1002 int 1003 nouveau_finish_page_flip(struct nouveau_channel *chan, 1004 struct nouveau_page_flip_state *ps) 1005 { 1006 struct nouveau_fence_chan *fctx = chan->fence; 1007 struct nouveau_drm *drm = chan->drm; 1008 struct drm_device *dev = drm->dev; 1009 struct nouveau_page_flip_state *s; 1010 unsigned long flags; 1011 1012 spin_lock_irqsave(&dev->event_lock, flags); 1013 1014 if (list_empty(&fctx->flip)) { 1015 NV_ERROR(drm, "unexpected pageflip\n"); 1016 spin_unlock_irqrestore(&dev->event_lock, flags); 1017 return -EINVAL; 1018 } 1019 1020 s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head); 1021 if (s->event) { 1022 drm_crtc_arm_vblank_event(s->crtc, s->event); 1023 } else { 1024 /* Give up ownership of vblank for page-flipped crtc */ 1025 drm_crtc_vblank_put(s->crtc); 1026 } 1027 1028 list_del(&s->head); 1029 if (ps) 1030 *ps = *s; 1031 kfree(s); 1032 1033 spin_unlock_irqrestore(&dev->event_lock, flags); 1034 return 0; 1035 } 1036 1037 int 1038 nouveau_flip_complete(struct nvif_notify *notify) 1039 { 1040 struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip); 1041 struct nouveau_channel *chan = drm->channel; 1042 struct nouveau_page_flip_state state; 1043 1044 if (!nouveau_finish_page_flip(chan, &state)) { 1045 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc), 1046 state.offset + state.crtc->y * 1047 state.pitch + state.crtc->x * 1048 state.bpp / 8); 1049 } 1050 1051 return NVIF_NOTIFY_KEEP; 1052 } 1053 1054 int 1055 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, 1056 struct drm_mode_create_dumb *args) 1057 { 1058 struct nouveau_bo *bo; 1059 uint32_t domain; 1060 int ret; 1061 1062 args->pitch = roundup(args->width * (args->bpp / 8), 256); 1063 args->size = args->pitch * args->height; 1064 args->size = roundup(args->size, PAGE_SIZE); 1065 1066 /* Use VRAM if there is any ; otherwise fallback to system memory */ 1067 if (nouveau_drm(dev)->device.info.ram_size != 0) 1068 domain = NOUVEAU_GEM_DOMAIN_VRAM; 1069 else 1070 domain = NOUVEAU_GEM_DOMAIN_GART; 1071 1072 ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo); 1073 if (ret) 1074 return ret; 1075 1076 ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle); 1077 drm_gem_object_unreference_unlocked(&bo->gem); 1078 return ret; 1079 } 1080 1081 int 1082 nouveau_display_dumb_map_offset(struct drm_file *file_priv, 1083 struct drm_device *dev, 1084 uint32_t handle, uint64_t *poffset) 1085 { 1086 struct drm_gem_object *gem; 1087 1088 gem = drm_gem_object_lookup(file_priv, handle); 1089 if (gem) { 1090 struct nouveau_bo *bo = nouveau_gem_object(gem); 1091 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node); 1092 drm_gem_object_unreference_unlocked(gem); 1093 return 0; 1094 } 1095 1096 return -ENOENT; 1097 } 1098