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