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 bool
 160 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
 161                          int *max_error, struct timeval *time, bool in_vblank_irq)
 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, in_vblank_irq,
 174                                         mode);
 175                 }
 176         }
 177
 178         return false;
 179 }
 180
 181 static void
 182 nouveau_display_vblank_fini(struct drm_device *dev)
 183 {
 184         struct drm_crtc *crtc;
 185
 186         drm_vblank_cleanup(dev);
 187
 188         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 189                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 190                 nvif_notify_fini(&nv_crtc->vblank);
 191         }
 192 }
 193
 194 static int
 195 nouveau_display_vblank_init(struct drm_device *dev)
 196 {
 197         struct nouveau_display *disp = nouveau_display(dev);
 198         struct drm_crtc *crtc;
 199         int ret;
 200
 201         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 202                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 203                 ret = nvif_notify_init(&disp->disp,
 204                                        nouveau_display_vblank_handler, false,
 205                                        NV04_DISP_NTFY_VBLANK,
 206                                        &(struct nvif_notify_head_req_v0) {
 207                                         .head = nv_crtc->index,
 208                                        },
 209                                        sizeof(struct nvif_notify_head_req_v0),
 210                                        sizeof(struct nvif_notify_head_rep_v0),
 211                                        &nv_crtc->vblank);
 212                 if (ret) {
 213                         nouveau_display_vblank_fini(dev);
 214                         return ret;
 215                 }
 216         }
 217
 218         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 219         if (ret) {
 220                 nouveau_display_vblank_fini(dev);
 221                 return ret;
 222         }
 223
 224         return 0;
 225 }
 226
 227 static void
 228 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 229 {
 230         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 231
 232         if (fb->nvbo)
 233                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 234
 235         drm_framebuffer_cleanup(drm_fb);
 236         kfree(fb);
 237 }
 238
 239 static int
 240 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 241                                        struct drm_file *file_priv,
 242                                        unsigned int *handle)
 243 {
 244         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 245
 246         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 247 }
 248
 249 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 250         .destroy = nouveau_user_framebuffer_destroy,
 251         .create_handle = nouveau_user_framebuffer_create_handle,
 252 };
 253
 254 int
 255 nouveau_framebuffer_new(struct drm_device *dev,
 256                         const struct drm_mode_fb_cmd2 *mode_cmd,
 257                         struct nouveau_bo *nvbo,
 258                         struct nouveau_framebuffer **pfb)
 259 {
 260         struct nouveau_framebuffer *fb;
 261         int ret;
 262
 263         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 264                 return -ENOMEM;
 265
 266         drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
 267         fb->nvbo = nvbo;
 268
 269         ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
 270         if (ret)
 271                 kfree(fb);
 272         return ret;
 273 }
 274
 275 struct drm_framebuffer *
 276 nouveau_user_framebuffer_create(struct drm_device *dev,
 277                                 struct drm_file *file_priv,
 278                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 279 {
 280         struct nouveau_framebuffer *fb;
 281         struct nouveau_bo *nvbo;
 282         struct drm_gem_object *gem;
 283         int ret;
 284
 285         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 286         if (!gem)
 287                 return ERR_PTR(-ENOENT);
 288         nvbo = nouveau_gem_object(gem);
 289
 290         ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
 291         if (ret == 0)
 292                 return &fb->base;
 293
 294         drm_gem_object_unreference_unlocked(gem);
 295         return ERR_PTR(ret);
 296 }
 297
 298 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 299         .fb_create = nouveau_user_framebuffer_create,
 300         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 301 };
 302
 303
 304 struct nouveau_drm_prop_enum_list {
 305         u8 gen_mask;
 306         int type;
 307         char *name;
 308 };
 309
 310 static struct nouveau_drm_prop_enum_list underscan[] = {
 311         { 6, UNDERSCAN_AUTO, "auto" },
 312         { 6, UNDERSCAN_OFF, "off" },
 313         { 6, UNDERSCAN_ON, "on" },
 314         {}
 315 };
 316
 317 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 318         { 7, DITHERING_MODE_AUTO, "auto" },
 319         { 7, DITHERING_MODE_OFF, "off" },
 320         { 1, DITHERING_MODE_ON, "on" },
 321         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 322         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 323         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 324         {}
 325 };
 326
 327 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 328         { 6, DITHERING_DEPTH_AUTO, "auto" },
 329         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 330         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 331         {}
 332 };
 333
 334 #define PROP_ENUM(p,gen,n,list) do {                                           \
 335         struct nouveau_drm_prop_enum_list *l = (list);                         \
 336         int c = 0;                                                             \
 337         while (l->gen_mask) {                                                  \
 338                 if (l->gen_mask & (1 << (gen)))                                \
 339                         c++;                                                   \
 340                 l++;                                                           \
 341         }                                                                      \
 342         if (c) {                                                               \
 343                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 344                 l = (list);                                                    \
 345                 c = 0;                                                         \
 346                 while (p && l->gen_mask) {                                     \
 347                         if (l->gen_mask & (1 << (gen))) {                      \
 348                                 drm_property_add_enum(p, c, l->type, l->name); \
 349                                 c++;                                           \
 350                         }                                                      \
 351                         l++;                                                   \
 352                 }                                                              \
 353         }                                                                      \
 354 } while(0)
 355
 356 static void
 357 nouveau_display_hpd_work(struct work_struct *work)
 358 {
 359         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 360
 361         pm_runtime_get_sync(drm->dev->dev);
 362
 363         drm_helper_hpd_irq_event(drm->dev);
 364
 365         pm_runtime_mark_last_busy(drm->dev->dev);
 366         pm_runtime_put_sync(drm->dev->dev);
 367 }
 368
 369 #ifdef CONFIG_ACPI
 370
 371 /*
 372  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
 373  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
 374  * This should be dropped once that is merged.
 375  */
 376 #ifndef ACPI_VIDEO_NOTIFY_PROBE
 377 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
 378 #endif
 379
 380 static int
 381 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 382                           void *data)
 383 {
 384         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 385         struct acpi_bus_event *info = data;
 386
 387         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 388                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 389                         /*
 390                          * This may be the only indication we receive of a
 391                          * connector hotplug on a runtime suspended GPU,
 392                          * schedule hpd_work to check.
 393                          */
 394                         schedule_work(&drm->hpd_work);
 395
 396                         /* acpi-video should not generate keypresses for this */
 397                         return NOTIFY_BAD;
 398                 }
 399         }
 400
 401         return NOTIFY_DONE;
 402 }
 403 #endif
 404
 405 int
 406 nouveau_display_init(struct drm_device *dev)
 407 {
 408         struct nouveau_display *disp = nouveau_display(dev);
 409         struct nouveau_drm *drm = nouveau_drm(dev);
 410         struct drm_connector *connector;
 411         int ret;
 412
 413         ret = disp->init(dev);
 414         if (ret)
 415                 return ret;
 416
 417         /* enable polling for external displays */
 418         if (!dev->mode_config.poll_enabled)
 419                 drm_kms_helper_poll_enable(dev);
 420
 421         /* enable hotplug interrupts */
 422         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 423                 struct nouveau_connector *conn = nouveau_connector(connector);
 424                 nvif_notify_get(&conn->hpd);
 425         }
 426
 427         /* enable flip completion events */
 428         nvif_notify_get(&drm->flip);
 429         return ret;
 430 }
 431
 432 void
 433 nouveau_display_fini(struct drm_device *dev, bool suspend)
 434 {
 435         struct nouveau_display *disp = nouveau_display(dev);
 436         struct nouveau_drm *drm = nouveau_drm(dev);
 437         struct drm_connector *connector;
 438         struct drm_crtc *crtc;
 439
 440         if (!suspend) {
 441                 if (drm_drv_uses_atomic_modeset(dev))
 442                         drm_atomic_helper_shutdown(dev);
 443                 else
 444                         drm_crtc_force_disable_all(dev);
 445         }
 446
 447         /* Make sure that drm and hw vblank irqs get properly disabled. */
 448         drm_for_each_crtc(crtc, dev)
 449                 drm_crtc_vblank_off(crtc);
 450
 451         /* disable flip completion events */
 452         nvif_notify_put(&drm->flip);
 453
 454         /* disable hotplug interrupts */
 455         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 456                 struct nouveau_connector *conn = nouveau_connector(connector);
 457                 nvif_notify_put(&conn->hpd);
 458         }
 459
 460         drm_kms_helper_poll_disable(dev);
 461         disp->fini(dev);
 462 }
 463
 464 static void
 465 nouveau_display_create_properties(struct drm_device *dev)
 466 {
 467         struct nouveau_display *disp = nouveau_display(dev);
 468         int gen;
 469
 470         if (disp->disp.oclass < NV50_DISP)
 471                 gen = 0;
 472         else
 473         if (disp->disp.oclass < GF110_DISP)
 474                 gen = 1;
 475         else
 476                 gen = 2;
 477
 478         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 479         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 480         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 481
 482         disp->underscan_hborder_property =
 483                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 484
 485         disp->underscan_vborder_property =
 486                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 487
 488         if (gen < 1)
 489                 return;
 490
 491         /* -90..+90 */
 492         disp->vibrant_hue_property =
 493                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 494
 495         /* -100..+100 */
 496         disp->color_vibrance_property =
 497                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 498 }
 499
 500 int
 501 nouveau_display_create(struct drm_device *dev)
 502 {
 503         struct nouveau_drm *drm = nouveau_drm(dev);
 504         struct nvkm_device *device = nvxx_device(&drm->client.device);
 505         struct nouveau_display *disp;
 506         int ret;
 507
 508         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 509         if (!disp)
 510                 return -ENOMEM;
 511
 512         drm_mode_config_init(dev);
 513         drm_mode_create_scaling_mode_property(dev);
 514         drm_mode_create_dvi_i_properties(dev);
 515
 516         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 517         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 518
 519         dev->mode_config.min_width = 0;
 520         dev->mode_config.min_height = 0;
 521         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 522                 dev->mode_config.max_width = 2048;
 523                 dev->mode_config.max_height = 2048;
 524         } else
 525         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 526                 dev->mode_config.max_width = 4096;
 527                 dev->mode_config.max_height = 4096;
 528         } else
 529         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 530                 dev->mode_config.max_width = 8192;
 531                 dev->mode_config.max_height = 8192;
 532         } else {
 533                 dev->mode_config.max_width = 16384;
 534                 dev->mode_config.max_height = 16384;
 535         }
 536
 537         dev->mode_config.preferred_depth = 24;
 538         dev->mode_config.prefer_shadow = 1;
 539
 540         if (drm->client.device.info.chipset < 0x11)
 541                 dev->mode_config.async_page_flip = false;
 542         else
 543                 dev->mode_config.async_page_flip = true;
 544
 545         drm_kms_helper_poll_init(dev);
 546         drm_kms_helper_poll_disable(dev);
 547
 548         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 549                 static const u16 oclass[] = {
 550                         GP102_DISP,
 551                         GP100_DISP,
 552                         GM200_DISP,
 553                         GM107_DISP,
 554                         GK110_DISP,
 555                         GK104_DISP,
 556                         GF110_DISP,
 557                         GT214_DISP,
 558                         GT206_DISP,
 559                         GT200_DISP,
 560                         G82_DISP,
 561                         NV50_DISP,
 562                         NV04_DISP,
 563                 };
 564                 int i;
 565
 566                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 567                         ret = nvif_object_init(&drm->client.device.object, 0,
 568                                                oclass[i], NULL, 0, &disp->disp);
 569                 }
 570
 571                 if (ret == 0) {
 572                         nouveau_display_create_properties(dev);
 573                         if (disp->disp.oclass < NV50_DISP)
 574                                 ret = nv04_display_create(dev);
 575                         else
 576                                 ret = nv50_display_create(dev);
 577                 }
 578         } else {
 579                 ret = 0;
 580         }
 581
 582         if (ret)
 583                 goto disp_create_err;
 584
 585         drm_mode_config_reset(dev);
 586
 587         if (dev->mode_config.num_crtc) {
 588                 ret = nouveau_display_vblank_init(dev);
 589                 if (ret)
 590                         goto vblank_err;
 591         }
 592
 593         nouveau_backlight_init(dev);
 594         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 595 #ifdef CONFIG_ACPI
 596         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 597         register_acpi_notifier(&drm->acpi_nb);
 598 #endif
 599
 600         return 0;
 601
 602 vblank_err:
 603         disp->dtor(dev);
 604 disp_create_err:
 605         drm_kms_helper_poll_fini(dev);
 606         drm_mode_config_cleanup(dev);
 607         return ret;
 608 }
 609
 610 void
 611 nouveau_display_destroy(struct drm_device *dev)
 612 {
 613         struct nouveau_display *disp = nouveau_display(dev);
 614
 615 #ifdef CONFIG_ACPI
 616         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 617 #endif
 618         nouveau_backlight_exit(dev);
 619         nouveau_display_vblank_fini(dev);
 620
 621         drm_kms_helper_poll_fini(dev);
 622         drm_mode_config_cleanup(dev);
 623
 624         if (disp->dtor)
 625                 disp->dtor(dev);
 626
 627         nvif_object_fini(&disp->disp);
 628
 629         nouveau_drm(dev)->display = NULL;
 630         kfree(disp);
 631 }
 632
 633 int
 634 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 635 {
 636         struct nouveau_display *disp = nouveau_display(dev);
 637         struct drm_crtc *crtc;
 638
 639         if (drm_drv_uses_atomic_modeset(dev)) {
 640                 if (!runtime) {
 641                         disp->suspend = drm_atomic_helper_suspend(dev);
 642                         if (IS_ERR(disp->suspend)) {
 643                                 int ret = PTR_ERR(disp->suspend);
 644                                 disp->suspend = NULL;
 645                                 return ret;
 646                         }
 647                 }
 648
 649                 nouveau_display_fini(dev, true);
 650                 return 0;
 651         }
 652
 653         nouveau_display_fini(dev, true);
 654
 655         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 656                 struct nouveau_framebuffer *nouveau_fb;
 657
 658                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 659                 if (!nouveau_fb || !nouveau_fb->nvbo)
 660                         continue;
 661
 662                 nouveau_bo_unpin(nouveau_fb->nvbo);
 663         }
 664
 665         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 666                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 667                 if (nv_crtc->cursor.nvbo) {
 668                         if (nv_crtc->cursor.set_offset)
 669                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 670                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 671                 }
 672         }
 673
 674         return 0;
 675 }
 676
 677 void
 678 nouveau_display_resume(struct drm_device *dev, bool runtime)
 679 {
 680         struct nouveau_display *disp = nouveau_display(dev);
 681         struct nouveau_drm *drm = nouveau_drm(dev);
 682         struct drm_crtc *crtc;
 683         int ret;
 684
 685         if (drm_drv_uses_atomic_modeset(dev)) {
 686                 nouveau_display_init(dev);
 687                 if (disp->suspend) {
 688                         drm_atomic_helper_resume(dev, disp->suspend);
 689                         disp->suspend = NULL;
 690                 }
 691                 return;
 692         }
 693
 694         /* re-pin fb/cursors */
 695         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 696                 struct nouveau_framebuffer *nouveau_fb;
 697
 698                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 699                 if (!nouveau_fb || !nouveau_fb->nvbo)
 700                         continue;
 701
 702                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 703                 if (ret)
 704                         NV_ERROR(drm, "Could not pin framebuffer\n");
 705         }
 706
 707         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 708                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 709                 if (!nv_crtc->cursor.nvbo)
 710                         continue;
 711
 712                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 713                 if (!ret && nv_crtc->cursor.set_offset)
 714                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 715                 if (ret)
 716                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 717         }
 718
 719         nouveau_display_init(dev);
 720
 721         /* Force CLUT to get re-loaded during modeset */
 722         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 723                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 724
 725                 nv_crtc->lut.depth = 0;
 726         }
 727
 728         /* This should ensure we don't hit a locking problem when someone
 729          * wakes us up via a connector.  We should never go into suspend
 730          * while the display is on anyways.
 731          */
 732         if (runtime)
 733                 return;
 734
 735         drm_helper_resume_force_mode(dev);
 736
 737         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 738                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 739
 740                 if (!nv_crtc->cursor.nvbo)
 741                         continue;
 742
 743                 if (nv_crtc->cursor.set_offset)
 744                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 745                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 746                                                  nv_crtc->cursor_saved_y);
 747         }
 748 }
 749
 750 static int
 751 nouveau_page_flip_emit(struct nouveau_channel *chan,
 752                        struct nouveau_bo *old_bo,
 753                        struct nouveau_bo *new_bo,
 754                        struct nouveau_page_flip_state *s,
 755                        struct nouveau_fence **pfence)
 756 {
 757         struct nouveau_fence_chan *fctx = chan->fence;
 758         struct nouveau_drm *drm = chan->drm;
 759         struct drm_device *dev = drm->dev;
 760         unsigned long flags;
 761         int ret;
 762
 763         /* Queue it to the pending list */
 764         spin_lock_irqsave(&dev->event_lock, flags);
 765         list_add_tail(&s->head, &fctx->flip);
 766         spin_unlock_irqrestore(&dev->event_lock, flags);
 767
 768         /* Synchronize with the old framebuffer */
 769         ret = nouveau_fence_sync(old_bo, chan, false, false);
 770         if (ret)
 771                 goto fail;
 772
 773         /* Emit the pageflip */
 774         ret = RING_SPACE(chan, 2);
 775         if (ret)
 776                 goto fail;
 777
 778         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 779         OUT_RING  (chan, 0x00000000);
 780         FIRE_RING (chan);
 781
 782         ret = nouveau_fence_new(chan, false, pfence);
 783         if (ret)
 784                 goto fail;
 785
 786         return 0;
 787 fail:
 788         spin_lock_irqsave(&dev->event_lock, flags);
 789         list_del(&s->head);
 790         spin_unlock_irqrestore(&dev->event_lock, flags);
 791         return ret;
 792 }
 793
 794 int
 795 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 796                        struct drm_pending_vblank_event *event, u32 flags,
 797                        struct drm_modeset_acquire_ctx *ctx)
 798 {
 799         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 800         struct drm_device *dev = crtc->dev;
 801         struct nouveau_drm *drm = nouveau_drm(dev);
 802         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 803         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 804         struct nouveau_page_flip_state *s;
 805         struct nouveau_channel *chan;
 806         struct nouveau_cli *cli;
 807         struct nouveau_fence *fence;
 808         struct nv04_display *dispnv04 = nv04_display(dev);
 809         int head = nouveau_crtc(crtc)->index;
 810         int ret;
 811
 812         chan = drm->channel;
 813         if (!chan)
 814                 return -ENODEV;
 815         cli = (void *)chan->user.client;
 816
 817         s = kzalloc(sizeof(*s), GFP_KERNEL);
 818         if (!s)
 819                 return -ENOMEM;
 820
 821         if (new_bo != old_bo) {
 822                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 823                 if (ret)
 824                         goto fail_free;
 825         }
 826
 827         mutex_lock(&cli->mutex);
 828         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 829         if (ret)
 830                 goto fail_unpin;
 831
 832         /* synchronise rendering channel with the kernel's channel */
 833         ret = nouveau_fence_sync(new_bo, chan, false, true);
 834         if (ret) {
 835                 ttm_bo_unreserve(&new_bo->bo);
 836                 goto fail_unpin;
 837         }
 838
 839         if (new_bo != old_bo) {
 840                 ttm_bo_unreserve(&new_bo->bo);
 841
 842                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 843                 if (ret)
 844                         goto fail_unpin;
 845         }
 846
 847         /* Initialize a page flip struct */
 848         *s = (struct nouveau_page_flip_state)
 849                 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
 850                   new_bo->bo.offset };
 851
 852         /* Keep vblanks on during flip, for the target crtc of this flip */
 853         drm_crtc_vblank_get(crtc);
 854
 855         /* Emit a page flip */
 856         if (swap_interval) {
 857                 ret = RING_SPACE(chan, 8);
 858                 if (ret)
 859                         goto fail_unreserve;
 860
 861                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
 862                 OUT_RING  (chan, 0);
 863                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
 864                 OUT_RING  (chan, head);
 865                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
 866                 OUT_RING  (chan, 0);
 867                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
 868                 OUT_RING  (chan, 0);
 869         }
 870
 871         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 872
 873         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 874         if (ret)
 875                 goto fail_unreserve;
 876         mutex_unlock(&cli->mutex);
 877
 878         /* Update the crtc struct and cleanup */
 879         crtc->primary->fb = fb;
 880
 881         nouveau_bo_fence(old_bo, fence, false);
 882         ttm_bo_unreserve(&old_bo->bo);
 883         if (old_bo != new_bo)
 884                 nouveau_bo_unpin(old_bo);
 885         nouveau_fence_unref(&fence);
 886         return 0;
 887
 888 fail_unreserve:
 889         drm_crtc_vblank_put(crtc);
 890         ttm_bo_unreserve(&old_bo->bo);
 891 fail_unpin:
 892         mutex_unlock(&cli->mutex);
 893         if (old_bo != new_bo)
 894                 nouveau_bo_unpin(new_bo);
 895 fail_free:
 896         kfree(s);
 897         return ret;
 898 }
 899
 900 int
 901 nouveau_finish_page_flip(struct nouveau_channel *chan,
 902                          struct nouveau_page_flip_state *ps)
 903 {
 904         struct nouveau_fence_chan *fctx = chan->fence;
 905         struct nouveau_drm *drm = chan->drm;
 906         struct drm_device *dev = drm->dev;
 907         struct nouveau_page_flip_state *s;
 908         unsigned long flags;
 909
 910         spin_lock_irqsave(&dev->event_lock, flags);
 911
 912         if (list_empty(&fctx->flip)) {
 913                 NV_ERROR(drm, "unexpected pageflip\n");
 914                 spin_unlock_irqrestore(&dev->event_lock, flags);
 915                 return -EINVAL;
 916         }
 917
 918         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 919         if (s->event) {
 920                 drm_crtc_arm_vblank_event(s->crtc, s->event);
 921         } else {
 922                 /* Give up ownership of vblank for page-flipped crtc */
 923                 drm_crtc_vblank_put(s->crtc);
 924         }
 925
 926         list_del(&s->head);
 927         if (ps)
 928                 *ps = *s;
 929         kfree(s);
 930
 931         spin_unlock_irqrestore(&dev->event_lock, flags);
 932         return 0;
 933 }
 934
 935 int
 936 nouveau_flip_complete(struct nvif_notify *notify)
 937 {
 938         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 939         struct nouveau_channel *chan = drm->channel;
 940         struct nouveau_page_flip_state state;
 941
 942         if (!nouveau_finish_page_flip(chan, &state)) {
 943                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
 944                                  state.offset + state.crtc->y *
 945                                  state.pitch + state.crtc->x *
 946                                  state.bpp / 8);
 947         }
 948
 949         return NVIF_NOTIFY_KEEP;
 950 }
 951
 952 int
 953 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 954                             struct drm_mode_create_dumb *args)
 955 {
 956         struct nouveau_cli *cli = nouveau_cli(file_priv);
 957         struct nouveau_bo *bo;
 958         uint32_t domain;
 959         int ret;
 960
 961         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 962         args->size = args->pitch * args->height;
 963         args->size = roundup(args->size, PAGE_SIZE);
 964
 965         /* Use VRAM if there is any ; otherwise fallback to system memory */
 966         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 967                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 968         else
 969                 domain = NOUVEAU_GEM_DOMAIN_GART;
 970
 971         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 972         if (ret)
 973                 return ret;
 974
 975         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 976         drm_gem_object_unreference_unlocked(&bo->gem);
 977         return ret;
 978 }
 979
 980 int
 981 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 982                                 struct drm_device *dev,
 983                                 uint32_t handle, uint64_t *poffset)
 984 {
 985         struct drm_gem_object *gem;
 986
 987         gem = drm_gem_object_lookup(file_priv, handle);
 988         if (gem) {
 989                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 990                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
 991                 drm_gem_object_unreference_unlocked(gem);
 992                 return 0;
 993         }
 994
 995         return -ENOENT;
 996 }