drivers/gpu/drm/nouveau/nouveau_display.c

   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 }