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