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 29 #include <drm/drm_atomic.h> 30 #include <drm/drm_atomic_helper.h> 31 #include <drm/drm_crtc_helper.h> 32 #include <drm/drm_fb_helper.h> 33 #include <drm/drm_fourcc.h> 34 #include <drm/drm_probe_helper.h> 35 #include <drm/drm_vblank.h> 36 37 #include "nouveau_fbcon.h" 38 #include "nouveau_crtc.h" 39 #include "nouveau_gem.h" 40 #include "nouveau_connector.h" 41 #include "nv50_display.h" 42 43 #include <nvif/class.h> 44 #include <nvif/cl0046.h> 45 #include <nvif/event.h> 46 47 static int 48 nouveau_display_vblank_handler(struct nvif_notify *notify) 49 { 50 struct nouveau_crtc *nv_crtc = 51 container_of(notify, typeof(*nv_crtc), vblank); 52 drm_crtc_handle_vblank(&nv_crtc->base); 53 return NVIF_NOTIFY_KEEP; 54 } 55 56 int 57 nouveau_display_vblank_enable(struct drm_crtc *crtc) 58 { 59 struct nouveau_crtc *nv_crtc; 60 61 nv_crtc = nouveau_crtc(crtc); 62 nvif_notify_get(&nv_crtc->vblank); 63 64 return 0; 65 } 66 67 void 68 nouveau_display_vblank_disable(struct drm_crtc *crtc) 69 { 70 struct nouveau_crtc *nv_crtc; 71 72 nv_crtc = nouveau_crtc(crtc); 73 nvif_notify_put(&nv_crtc->vblank); 74 } 75 76 static inline int 77 calc(int blanks, int blanke, int total, int line) 78 { 79 if (blanke >= blanks) { 80 if (line >= blanks) 81 line -= total; 82 } else { 83 if (line >= blanks) 84 line -= total; 85 line -= blanke + 1; 86 } 87 return line; 88 } 89 90 static bool 91 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos, 92 ktime_t *stime, ktime_t *etime) 93 { 94 struct { 95 struct nv04_disp_mthd_v0 base; 96 struct nv04_disp_scanoutpos_v0 scan; 97 } args = { 98 .base.method = NV04_DISP_SCANOUTPOS, 99 .base.head = nouveau_crtc(crtc)->index, 100 }; 101 struct nouveau_display *disp = nouveau_display(crtc->dev); 102 struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)]; 103 int retry = 20; 104 bool ret = false; 105 106 do { 107 ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args)); 108 if (ret != 0) 109 return false; 110 111 if (args.scan.vline) { 112 ret = true; 113 break; 114 } 115 116 if (retry) ndelay(vblank->linedur_ns); 117 } while (retry--); 118 119 *hpos = args.scan.hline; 120 *vpos = calc(args.scan.vblanks, args.scan.vblanke, 121 args.scan.vtotal, args.scan.vline); 122 if (stime) *stime = ns_to_ktime(args.scan.time[0]); 123 if (etime) *etime = ns_to_ktime(args.scan.time[1]); 124 125 return ret; 126 } 127 128 bool 129 nouveau_display_scanoutpos(struct drm_crtc *crtc, 130 bool in_vblank_irq, int *vpos, int *hpos, 131 ktime_t *stime, ktime_t *etime, 132 const struct drm_display_mode *mode) 133 { 134 return nouveau_display_scanoutpos_head(crtc, vpos, hpos, 135 stime, etime); 136 } 137 138 static void 139 nouveau_display_vblank_fini(struct drm_device *dev) 140 { 141 struct drm_crtc *crtc; 142 143 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 144 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 145 nvif_notify_fini(&nv_crtc->vblank); 146 } 147 } 148 149 static int 150 nouveau_display_vblank_init(struct drm_device *dev) 151 { 152 struct nouveau_display *disp = nouveau_display(dev); 153 struct drm_crtc *crtc; 154 int ret; 155 156 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 157 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc); 158 ret = nvif_notify_init(&disp->disp.object, 159 nouveau_display_vblank_handler, false, 160 NV04_DISP_NTFY_VBLANK, 161 &(struct nvif_notify_head_req_v0) { 162 .head = nv_crtc->index, 163 }, 164 sizeof(struct nvif_notify_head_req_v0), 165 sizeof(struct nvif_notify_head_rep_v0), 166 &nv_crtc->vblank); 167 if (ret) { 168 nouveau_display_vblank_fini(dev); 169 return ret; 170 } 171 } 172 173 ret = drm_vblank_init(dev, dev->mode_config.num_crtc); 174 if (ret) { 175 nouveau_display_vblank_fini(dev); 176 return ret; 177 } 178 179 return 0; 180 } 181 182 static void 183 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb) 184 { 185 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 186 187 if (fb->nvbo) 188 drm_gem_object_put_unlocked(&fb->nvbo->bo.base); 189 190 drm_framebuffer_cleanup(drm_fb); 191 kfree(fb); 192 } 193 194 static int 195 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb, 196 struct drm_file *file_priv, 197 unsigned int *handle) 198 { 199 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb); 200 201 return drm_gem_handle_create(file_priv, &fb->nvbo->bo.base, handle); 202 } 203 204 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = { 205 .destroy = nouveau_user_framebuffer_destroy, 206 .create_handle = nouveau_user_framebuffer_create_handle, 207 }; 208 209 int 210 nouveau_framebuffer_new(struct drm_device *dev, 211 const struct drm_mode_fb_cmd2 *mode_cmd, 212 struct nouveau_bo *nvbo, 213 struct nouveau_framebuffer **pfb) 214 { 215 struct nouveau_drm *drm = nouveau_drm(dev); 216 struct nouveau_framebuffer *fb; 217 int ret; 218 219 /* YUV overlays have special requirements pre-NV50 */ 220 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA && 221 222 (mode_cmd->pixel_format == DRM_FORMAT_YUYV || 223 mode_cmd->pixel_format == DRM_FORMAT_UYVY || 224 mode_cmd->pixel_format == DRM_FORMAT_NV12 || 225 mode_cmd->pixel_format == DRM_FORMAT_NV21) && 226 (mode_cmd->pitches[0] & 0x3f || /* align 64 */ 227 mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */ 228 (mode_cmd->pitches[1] && /* pitches for planes must match */ 229 mode_cmd->pitches[0] != mode_cmd->pitches[1]))) { 230 struct drm_format_name_buf format_name; 231 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n", 232 drm_get_format_name(mode_cmd->pixel_format, 233 &format_name), 234 mode_cmd->pitches[0], 235 mode_cmd->pitches[1]); 236 return -EINVAL; 237 } 238 239 if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL))) 240 return -ENOMEM; 241 242 drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd); 243 fb->nvbo = nvbo; 244 245 ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs); 246 if (ret) 247 kfree(fb); 248 return ret; 249 } 250 251 struct drm_framebuffer * 252 nouveau_user_framebuffer_create(struct drm_device *dev, 253 struct drm_file *file_priv, 254 const struct drm_mode_fb_cmd2 *mode_cmd) 255 { 256 struct nouveau_framebuffer *fb; 257 struct nouveau_bo *nvbo; 258 struct drm_gem_object *gem; 259 int ret; 260 261 gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]); 262 if (!gem) 263 return ERR_PTR(-ENOENT); 264 nvbo = nouveau_gem_object(gem); 265 266 ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb); 267 if (ret == 0) 268 return &fb->base; 269 270 drm_gem_object_put_unlocked(gem); 271 return ERR_PTR(ret); 272 } 273 274 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = { 275 .fb_create = nouveau_user_framebuffer_create, 276 .output_poll_changed = nouveau_fbcon_output_poll_changed, 277 }; 278 279 280 struct nouveau_drm_prop_enum_list { 281 u8 gen_mask; 282 int type; 283 char *name; 284 }; 285 286 static struct nouveau_drm_prop_enum_list underscan[] = { 287 { 6, UNDERSCAN_AUTO, "auto" }, 288 { 6, UNDERSCAN_OFF, "off" }, 289 { 6, UNDERSCAN_ON, "on" }, 290 {} 291 }; 292 293 static struct nouveau_drm_prop_enum_list dither_mode[] = { 294 { 7, DITHERING_MODE_AUTO, "auto" }, 295 { 7, DITHERING_MODE_OFF, "off" }, 296 { 1, DITHERING_MODE_ON, "on" }, 297 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" }, 298 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" }, 299 { 4, DITHERING_MODE_TEMPORAL, "temporal" }, 300 {} 301 }; 302 303 static struct nouveau_drm_prop_enum_list dither_depth[] = { 304 { 6, DITHERING_DEPTH_AUTO, "auto" }, 305 { 6, DITHERING_DEPTH_6BPC, "6 bpc" }, 306 { 6, DITHERING_DEPTH_8BPC, "8 bpc" }, 307 {} 308 }; 309 310 #define PROP_ENUM(p,gen,n,list) do { \ 311 struct nouveau_drm_prop_enum_list *l = (list); \ 312 int c = 0; \ 313 while (l->gen_mask) { \ 314 if (l->gen_mask & (1 << (gen))) \ 315 c++; \ 316 l++; \ 317 } \ 318 if (c) { \ 319 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \ 320 l = (list); \ 321 while (p && l->gen_mask) { \ 322 if (l->gen_mask & (1 << (gen))) { \ 323 drm_property_add_enum(p, l->type, l->name); \ 324 } \ 325 l++; \ 326 } \ 327 } \ 328 } while(0) 329 330 static void 331 nouveau_display_hpd_work(struct work_struct *work) 332 { 333 struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work); 334 335 pm_runtime_get_sync(drm->dev->dev); 336 337 drm_helper_hpd_irq_event(drm->dev); 338 339 pm_runtime_mark_last_busy(drm->dev->dev); 340 pm_runtime_put_sync(drm->dev->dev); 341 } 342 343 #ifdef CONFIG_ACPI 344 345 static int 346 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val, 347 void *data) 348 { 349 struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb); 350 struct acpi_bus_event *info = data; 351 int ret; 352 353 if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) { 354 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) { 355 ret = pm_runtime_get(drm->dev->dev); 356 if (ret == 1 || ret == -EACCES) { 357 /* If the GPU is already awake, or in a state 358 * where we can't wake it up, it can handle 359 * it's own hotplug events. 360 */ 361 pm_runtime_put_autosuspend(drm->dev->dev); 362 } else if (ret == 0) { 363 /* This may be the only indication we receive 364 * of a connector hotplug on a runtime 365 * suspended GPU, schedule hpd_work to check. 366 */ 367 NV_DEBUG(drm, "ACPI requested connector reprobe\n"); 368 schedule_work(&drm->hpd_work); 369 pm_runtime_put_noidle(drm->dev->dev); 370 } else { 371 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n", 372 ret); 373 } 374 375 /* acpi-video should not generate keypresses for this */ 376 return NOTIFY_BAD; 377 } 378 } 379 380 return NOTIFY_DONE; 381 } 382 #endif 383 384 int 385 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime) 386 { 387 struct nouveau_display *disp = nouveau_display(dev); 388 struct drm_connector *connector; 389 struct drm_connector_list_iter conn_iter; 390 int ret; 391 392 /* 393 * Enable hotplug interrupts (done as early as possible, since we need 394 * them for MST) 395 */ 396 drm_connector_list_iter_begin(dev, &conn_iter); 397 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 398 struct nouveau_connector *conn = nouveau_connector(connector); 399 nvif_notify_get(&conn->hpd); 400 } 401 drm_connector_list_iter_end(&conn_iter); 402 403 ret = disp->init(dev, resume, runtime); 404 if (ret) 405 return ret; 406 407 /* enable connector detection and polling for connectors without HPD 408 * support 409 */ 410 drm_kms_helper_poll_enable(dev); 411 412 return ret; 413 } 414 415 void 416 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime) 417 { 418 struct nouveau_display *disp = nouveau_display(dev); 419 struct nouveau_drm *drm = nouveau_drm(dev); 420 struct drm_connector *connector; 421 struct drm_connector_list_iter conn_iter; 422 423 if (!suspend) { 424 if (drm_drv_uses_atomic_modeset(dev)) 425 drm_atomic_helper_shutdown(dev); 426 else 427 drm_helper_force_disable_all(dev); 428 } 429 430 /* disable hotplug interrupts */ 431 drm_connector_list_iter_begin(dev, &conn_iter); 432 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) { 433 struct nouveau_connector *conn = nouveau_connector(connector); 434 nvif_notify_put(&conn->hpd); 435 } 436 drm_connector_list_iter_end(&conn_iter); 437 438 if (!runtime) 439 cancel_work_sync(&drm->hpd_work); 440 441 drm_kms_helper_poll_disable(dev); 442 disp->fini(dev, suspend); 443 } 444 445 static void 446 nouveau_display_create_properties(struct drm_device *dev) 447 { 448 struct nouveau_display *disp = nouveau_display(dev); 449 int gen; 450 451 if (disp->disp.object.oclass < NV50_DISP) 452 gen = 0; 453 else 454 if (disp->disp.object.oclass < GF110_DISP) 455 gen = 1; 456 else 457 gen = 2; 458 459 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode); 460 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth); 461 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan); 462 463 disp->underscan_hborder_property = 464 drm_property_create_range(dev, 0, "underscan hborder", 0, 128); 465 466 disp->underscan_vborder_property = 467 drm_property_create_range(dev, 0, "underscan vborder", 0, 128); 468 469 if (gen < 1) 470 return; 471 472 /* -90..+90 */ 473 disp->vibrant_hue_property = 474 drm_property_create_range(dev, 0, "vibrant hue", 0, 180); 475 476 /* -100..+100 */ 477 disp->color_vibrance_property = 478 drm_property_create_range(dev, 0, "color vibrance", 0, 200); 479 } 480 481 int 482 nouveau_display_create(struct drm_device *dev) 483 { 484 struct nouveau_drm *drm = nouveau_drm(dev); 485 struct nvkm_device *device = nvxx_device(&drm->client.device); 486 struct nouveau_display *disp; 487 int ret; 488 489 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL); 490 if (!disp) 491 return -ENOMEM; 492 493 drm_mode_config_init(dev); 494 drm_mode_create_scaling_mode_property(dev); 495 drm_mode_create_dvi_i_properties(dev); 496 497 dev->mode_config.funcs = &nouveau_mode_config_funcs; 498 dev->mode_config.fb_base = device->func->resource_addr(device, 1); 499 500 dev->mode_config.min_width = 0; 501 dev->mode_config.min_height = 0; 502 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) { 503 dev->mode_config.max_width = 2048; 504 dev->mode_config.max_height = 2048; 505 } else 506 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) { 507 dev->mode_config.max_width = 4096; 508 dev->mode_config.max_height = 4096; 509 } else 510 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) { 511 dev->mode_config.max_width = 8192; 512 dev->mode_config.max_height = 8192; 513 } else { 514 dev->mode_config.max_width = 16384; 515 dev->mode_config.max_height = 16384; 516 } 517 518 dev->mode_config.preferred_depth = 24; 519 dev->mode_config.prefer_shadow = 1; 520 521 if (drm->client.device.info.chipset < 0x11) 522 dev->mode_config.async_page_flip = false; 523 else 524 dev->mode_config.async_page_flip = true; 525 526 drm_kms_helper_poll_init(dev); 527 drm_kms_helper_poll_disable(dev); 528 529 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) { 530 ret = nvif_disp_ctor(&drm->client.device, 0, &disp->disp); 531 if (ret == 0) { 532 nouveau_display_create_properties(dev); 533 if (disp->disp.object.oclass < NV50_DISP) 534 ret = nv04_display_create(dev); 535 else 536 ret = nv50_display_create(dev); 537 } 538 } else { 539 ret = 0; 540 } 541 542 if (ret) 543 goto disp_create_err; 544 545 drm_mode_config_reset(dev); 546 547 if (dev->mode_config.num_crtc) { 548 ret = nouveau_display_vblank_init(dev); 549 if (ret) 550 goto vblank_err; 551 } 552 553 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work); 554 #ifdef CONFIG_ACPI 555 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy; 556 register_acpi_notifier(&drm->acpi_nb); 557 #endif 558 559 return 0; 560 561 vblank_err: 562 disp->dtor(dev); 563 disp_create_err: 564 drm_kms_helper_poll_fini(dev); 565 drm_mode_config_cleanup(dev); 566 return ret; 567 } 568 569 void 570 nouveau_display_destroy(struct drm_device *dev) 571 { 572 struct nouveau_display *disp = nouveau_display(dev); 573 574 #ifdef CONFIG_ACPI 575 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb); 576 #endif 577 nouveau_display_vblank_fini(dev); 578 579 drm_kms_helper_poll_fini(dev); 580 drm_mode_config_cleanup(dev); 581 582 if (disp->dtor) 583 disp->dtor(dev); 584 585 nvif_disp_dtor(&disp->disp); 586 587 nouveau_drm(dev)->display = NULL; 588 kfree(disp); 589 } 590 591 int 592 nouveau_display_suspend(struct drm_device *dev, bool runtime) 593 { 594 struct nouveau_display *disp = nouveau_display(dev); 595 596 if (drm_drv_uses_atomic_modeset(dev)) { 597 if (!runtime) { 598 disp->suspend = drm_atomic_helper_suspend(dev); 599 if (IS_ERR(disp->suspend)) { 600 int ret = PTR_ERR(disp->suspend); 601 disp->suspend = NULL; 602 return ret; 603 } 604 } 605 } 606 607 nouveau_display_fini(dev, true, runtime); 608 return 0; 609 } 610 611 void 612 nouveau_display_resume(struct drm_device *dev, bool runtime) 613 { 614 struct nouveau_display *disp = nouveau_display(dev); 615 616 nouveau_display_init(dev, true, runtime); 617 618 if (drm_drv_uses_atomic_modeset(dev)) { 619 if (disp->suspend) { 620 drm_atomic_helper_resume(dev, disp->suspend); 621 disp->suspend = NULL; 622 } 623 return; 624 } 625 } 626 627 int 628 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev, 629 struct drm_mode_create_dumb *args) 630 { 631 struct nouveau_cli *cli = nouveau_cli(file_priv); 632 struct nouveau_bo *bo; 633 uint32_t domain; 634 int ret; 635 636 args->pitch = roundup(args->width * (args->bpp / 8), 256); 637 args->size = args->pitch * args->height; 638 args->size = roundup(args->size, PAGE_SIZE); 639 640 /* Use VRAM if there is any ; otherwise fallback to system memory */ 641 if (nouveau_drm(dev)->client.device.info.ram_size != 0) 642 domain = NOUVEAU_GEM_DOMAIN_VRAM; 643 else 644 domain = NOUVEAU_GEM_DOMAIN_GART; 645 646 ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo); 647 if (ret) 648 return ret; 649 650 ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle); 651 drm_gem_object_put_unlocked(&bo->bo.base); 652 return ret; 653 } 654 655 int 656 nouveau_display_dumb_map_offset(struct drm_file *file_priv, 657 struct drm_device *dev, 658 uint32_t handle, uint64_t *poffset) 659 { 660 struct drm_gem_object *gem; 661 662 gem = drm_gem_object_lookup(file_priv, handle); 663 if (gem) { 664 struct nouveau_bo *bo = nouveau_gem_object(gem); 665 *poffset = drm_vma_node_offset_addr(&bo->bo.base.vma_node); 666 drm_gem_object_put_unlocked(gem); 667 return 0; 668 } 669 670 return -ENOENT; 671 } 672