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_crtc_helper.h>
  30
  31 #include <nvif/class.h>
  32
  33 #include "nouveau_fbcon.h"
  34 #include "dispnv04/hw.h"
  35 #include "nouveau_crtc.h"
  36 #include "nouveau_dma.h"
  37 #include "nouveau_gem.h"
  38 #include "nouveau_connector.h"
  39 #include "nv50_display.h"
  40
  41 #include "nouveau_fence.h"
  42
  43 #include <nvif/cl0046.h>
  44 #include <nvif/event.h>
  45
  46 static int
  47 nouveau_display_vblank_handler(struct nvif_notify *notify)
  48 {
  49         struct nouveau_crtc *nv_crtc =
  50                 container_of(notify, typeof(*nv_crtc), vblank);
  51         drm_crtc_handle_vblank(&nv_crtc->base);
  52         return NVIF_NOTIFY_KEEP;
  53 }
  54
  55 int
  56 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
  57 {
  58         struct drm_crtc *crtc;
  59         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
  60                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  61                 if (nv_crtc->index == pipe) {
  62                         nvif_notify_get(&nv_crtc->vblank);
  63                         return 0;
  64                 }
  65         }
  66         return -EINVAL;
  67 }
  68
  69 void
  70 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
  71 {
  72         struct drm_crtc *crtc;
  73         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
  74                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  75                 if (nv_crtc->index == pipe) {
  76                         nvif_notify_put(&nv_crtc->vblank);
  77                         return;
  78                 }
  79         }
  80 }
  81
  82 static inline int
  83 calc(int blanks, int blanke, int total, int line)
  84 {
  85         if (blanke >= blanks) {
  86                 if (line >= blanks)
  87                         line -= total;
  88         } else {
  89                 if (line >= blanks)
  90                         line -= total;
  91                 line -= blanke + 1;
  92         }
  93         return line;
  94 }
  95
  96 int
  97 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  98                                 ktime_t *stime, ktime_t *etime)
  99 {
 100         struct {
 101                 struct nv04_disp_mthd_v0 base;
 102                 struct nv04_disp_scanoutpos_v0 scan;
 103         } args = {
 104                 .base.method = NV04_DISP_SCANOUTPOS,
 105                 .base.head = nouveau_crtc(crtc)->index,
 106         };
 107         struct nouveau_display *disp = nouveau_display(crtc->dev);
 108         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
 109         int ret, retry = 20;
 110
 111         do {
 112                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
 113                 if (ret != 0)
 114                         return 0;
 115
 116                 if (args.scan.vline) {
 117                         ret |= DRM_SCANOUTPOS_ACCURATE;
 118                         ret |= DRM_SCANOUTPOS_VALID;
 119                         break;
 120                 }
 121
 122                 if (retry) ndelay(vblank->linedur_ns);
 123         } while (retry--);
 124
 125         *hpos = args.scan.hline;
 126         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 127                      args.scan.vtotal, args.scan.vline);
 128         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 129         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 130
 131         if (*vpos < 0)
 132                 ret |= DRM_SCANOUTPOS_IN_VBLANK;
 133         return ret;
 134 }
 135
 136 int
 137 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
 138                            unsigned int flags, int *vpos, int *hpos,
 139                            ktime_t *stime, ktime_t *etime,
 140                            const struct drm_display_mode *mode)
 141 {
 142         struct drm_crtc *crtc;
 143
 144         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 145                 if (nouveau_crtc(crtc)->index == pipe) {
 146                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 147                                                                stime, etime);
 148                 }
 149         }
 150
 151         return 0;
 152 }
 153
 154 int
 155 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
 156                          int *max_error, struct timeval *time, unsigned flags)
 157 {
 158         struct drm_crtc *crtc;
 159
 160         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 161                 if (nouveau_crtc(crtc)->index == pipe) {
 162                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
 163                                         pipe, max_error, time, flags,
 164                                         &crtc->hwmode);
 165                 }
 166         }
 167
 168         return -EINVAL;
 169 }
 170
 171 static void
 172 nouveau_display_vblank_fini(struct drm_device *dev)
 173 {
 174         struct drm_crtc *crtc;
 175
 176         drm_vblank_cleanup(dev);
 177
 178         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 179                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 180                 nvif_notify_fini(&nv_crtc->vblank);
 181         }
 182 }
 183
 184 static int
 185 nouveau_display_vblank_init(struct drm_device *dev)
 186 {
 187         struct nouveau_display *disp = nouveau_display(dev);
 188         struct drm_crtc *crtc;
 189         int ret;
 190
 191         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 192                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 193                 ret = nvif_notify_init(&disp->disp,
 194                                        nouveau_display_vblank_handler, false,
 195                                        NV04_DISP_NTFY_VBLANK,
 196                                        &(struct nvif_notify_head_req_v0) {
 197                                         .head = nv_crtc->index,
 198                                        },
 199                                        sizeof(struct nvif_notify_head_req_v0),
 200                                        sizeof(struct nvif_notify_head_rep_v0),
 201                                        &nv_crtc->vblank);
 202                 if (ret) {
 203                         nouveau_display_vblank_fini(dev);
 204                         return ret;
 205                 }
 206         }
 207
 208         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 209         if (ret) {
 210                 nouveau_display_vblank_fini(dev);
 211                 return ret;
 212         }
 213
 214         return 0;
 215 }
 216
 217 static void
 218 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 219 {
 220         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 221         struct nouveau_display *disp = nouveau_display(drm_fb->dev);
 222
 223         if (disp->fb_dtor)
 224                 disp->fb_dtor(drm_fb);
 225
 226         if (fb->nvbo)
 227                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
 228
 229         drm_framebuffer_cleanup(drm_fb);
 230         kfree(fb);
 231 }
 232
 233 static int
 234 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
 235                                        struct drm_file *file_priv,
 236                                        unsigned int *handle)
 237 {
 238         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 239
 240         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
 241 }
 242
 243 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 244         .destroy = nouveau_user_framebuffer_destroy,
 245         .create_handle = nouveau_user_framebuffer_create_handle,
 246 };
 247
 248 int
 249 nouveau_framebuffer_init(struct drm_device *dev,
 250                          struct nouveau_framebuffer *nv_fb,
 251                          const struct drm_mode_fb_cmd2 *mode_cmd,
 252                          struct nouveau_bo *nvbo)
 253 {
 254         struct nouveau_display *disp = nouveau_display(dev);
 255         struct drm_framebuffer *fb = &nv_fb->base;
 256         int ret;
 257
 258         drm_helper_mode_fill_fb_struct(fb, mode_cmd);
 259         nv_fb->nvbo = nvbo;
 260
 261         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 262         if (ret)
 263                 return ret;
 264
 265         if (disp->fb_ctor) {
 266                 ret = disp->fb_ctor(fb);
 267                 if (ret)
 268                         disp->fb_dtor(fb);
 269         }
 270
 271         return ret;
 272 }
 273
 274 static 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 *nouveau_fb;
 280         struct drm_gem_object *gem;
 281         int ret = -ENOMEM;
 282
 283         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 284         if (!gem)
 285                 return ERR_PTR(-ENOENT);
 286
 287         nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
 288         if (!nouveau_fb)
 289                 goto err_unref;
 290
 291         ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
 292         if (ret)
 293                 goto err;
 294
 295         return &nouveau_fb->base;
 296
 297 err:
 298         kfree(nouveau_fb);
 299 err_unref:
 300         drm_gem_object_unreference_unlocked(gem);
 301         return ERR_PTR(ret);
 302 }
 303
 304 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 305         .fb_create = nouveau_user_framebuffer_create,
 306         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 307 };
 308
 309
 310 struct nouveau_drm_prop_enum_list {
 311         u8 gen_mask;
 312         int type;
 313         char *name;
 314 };
 315
 316 static struct nouveau_drm_prop_enum_list underscan[] = {
 317         { 6, UNDERSCAN_AUTO, "auto" },
 318         { 6, UNDERSCAN_OFF, "off" },
 319         { 6, UNDERSCAN_ON, "on" },
 320         {}
 321 };
 322
 323 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 324         { 7, DITHERING_MODE_AUTO, "auto" },
 325         { 7, DITHERING_MODE_OFF, "off" },
 326         { 1, DITHERING_MODE_ON, "on" },
 327         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 328         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 329         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 330         {}
 331 };
 332
 333 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 334         { 6, DITHERING_DEPTH_AUTO, "auto" },
 335         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 336         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 337         {}
 338 };
 339
 340 #define PROP_ENUM(p,gen,n,list) do {                                           \
 341         struct nouveau_drm_prop_enum_list *l = (list);                         \
 342         int c = 0;                                                             \
 343         while (l->gen_mask) {                                                  \
 344                 if (l->gen_mask & (1 << (gen)))                                \
 345                         c++;                                                   \
 346                 l++;                                                           \
 347         }                                                                      \
 348         if (c) {                                                               \
 349                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 350                 l = (list);                                                    \
 351                 c = 0;                                                         \
 352                 while (p && l->gen_mask) {                                     \
 353                         if (l->gen_mask & (1 << (gen))) {                      \
 354                                 drm_property_add_enum(p, c, l->type, l->name); \
 355                                 c++;                                           \
 356                         }                                                      \
 357                         l++;                                                   \
 358                 }                                                              \
 359         }                                                                      \
 360 } while(0)
 361
 362 static void
 363 nouveau_display_hpd_work(struct work_struct *work)
 364 {
 365         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 366
 367         pm_runtime_get_sync(drm->dev->dev);
 368
 369         drm_helper_hpd_irq_event(drm->dev);
 370
 371         pm_runtime_mark_last_busy(drm->dev->dev);
 372         pm_runtime_put_sync(drm->dev->dev);
 373 }
 374
 375 #ifdef CONFIG_ACPI
 376
 377 /*
 378  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
 379  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
 380  * This should be dropped once that is merged.
 381  */
 382 #ifndef ACPI_VIDEO_NOTIFY_PROBE
 383 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
 384 #endif
 385
 386 static int
 387 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 388                           void *data)
 389 {
 390         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 391         struct acpi_bus_event *info = data;
 392         int ret;
 393
 394         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 395                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 396                         ret = pm_runtime_get(drm->dev->dev);
 397                         if (ret == 1 || ret == -EACCES) {
 398                                 /* If the GPU is already awake, or in a state
 399                                  * where we can't wake it up, it can handle
 400                                  * it's own hotplug events.
 401                                  */
 402                                 pm_runtime_put_autosuspend(drm->dev->dev);
 403                         } else if (ret == 0) {
 404                                 /* This may be the only indication we receive
 405                                  * of a connector hotplug on a runtime
 406                                  * suspended GPU, schedule hpd_work to check.
 407                                  */
 408                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 409                                 schedule_work(&drm->hpd_work);
 410                                 pm_runtime_put_noidle(drm->dev->dev);
 411                         } else {
 412                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 413                                         ret);
 414                         }
 415
 416                         /* acpi-video should not generate keypresses for this */
 417                         return NOTIFY_BAD;
 418                 }
 419         }
 420
 421         return NOTIFY_DONE;
 422 }
 423 #endif
 424
 425 int
 426 nouveau_display_init(struct drm_device *dev)
 427 {
 428         struct nouveau_display *disp = nouveau_display(dev);
 429         struct nouveau_drm *drm = nouveau_drm(dev);
 430         struct drm_connector *connector;
 431         int ret;
 432
 433         ret = disp->init(dev);
 434         if (ret)
 435                 return ret;
 436
 437         /* enable connector detection and polling for connectors without HPD
 438          * support
 439          */
 440         drm_kms_helper_poll_enable(dev);
 441
 442         /* enable hotplug interrupts */
 443         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 444                 struct nouveau_connector *conn = nouveau_connector(connector);
 445                 nvif_notify_get(&conn->hpd);
 446         }
 447
 448         /* enable flip completion events */
 449         nvif_notify_get(&drm->flip);
 450         return ret;
 451 }
 452
 453 void
 454 nouveau_display_fini(struct drm_device *dev)
 455 {
 456         struct nouveau_display *disp = nouveau_display(dev);
 457         struct nouveau_drm *drm = nouveau_drm(dev);
 458         struct drm_connector *connector;
 459         int head;
 460
 461         /* Make sure that drm and hw vblank irqs get properly disabled. */
 462         for (head = 0; head < dev->mode_config.num_crtc; head++)
 463                 drm_vblank_off(dev, head);
 464
 465         /* disable flip completion events */
 466         nvif_notify_put(&drm->flip);
 467
 468         /* disable hotplug interrupts */
 469         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 470                 struct nouveau_connector *conn = nouveau_connector(connector);
 471                 nvif_notify_put(&conn->hpd);
 472         }
 473
 474         drm_kms_helper_poll_disable(dev);
 475         disp->fini(dev);
 476 }
 477
 478 static void
 479 nouveau_display_create_properties(struct drm_device *dev)
 480 {
 481         struct nouveau_display *disp = nouveau_display(dev);
 482         int gen;
 483
 484         if (disp->disp.oclass < NV50_DISP)
 485                 gen = 0;
 486         else
 487         if (disp->disp.oclass < GF110_DISP)
 488                 gen = 1;
 489         else
 490                 gen = 2;
 491
 492         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 493         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 494         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 495
 496         disp->underscan_hborder_property =
 497                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 498
 499         disp->underscan_vborder_property =
 500                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 501
 502         if (gen < 1)
 503                 return;
 504
 505         /* -90..+90 */
 506         disp->vibrant_hue_property =
 507                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 508
 509         /* -100..+100 */
 510         disp->color_vibrance_property =
 511                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 512 }
 513
 514 int
 515 nouveau_display_create(struct drm_device *dev)
 516 {
 517         struct nouveau_drm *drm = nouveau_drm(dev);
 518         struct nvkm_device *device = nvxx_device(&drm->device);
 519         struct nouveau_display *disp;
 520         int ret;
 521
 522         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 523         if (!disp)
 524                 return -ENOMEM;
 525
 526         drm_mode_config_init(dev);
 527         drm_mode_create_scaling_mode_property(dev);
 528         drm_mode_create_dvi_i_properties(dev);
 529
 530         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 531         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 532
 533         dev->mode_config.min_width = 0;
 534         dev->mode_config.min_height = 0;
 535         if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 536                 dev->mode_config.max_width = 2048;
 537                 dev->mode_config.max_height = 2048;
 538         } else
 539         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 540                 dev->mode_config.max_width = 4096;
 541                 dev->mode_config.max_height = 4096;
 542         } else
 543         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 544                 dev->mode_config.max_width = 8192;
 545                 dev->mode_config.max_height = 8192;
 546         } else {
 547                 dev->mode_config.max_width = 16384;
 548                 dev->mode_config.max_height = 16384;
 549         }
 550
 551         dev->mode_config.preferred_depth = 24;
 552         dev->mode_config.prefer_shadow = 1;
 553
 554         if (drm->device.info.chipset < 0x11)
 555                 dev->mode_config.async_page_flip = false;
 556         else
 557                 dev->mode_config.async_page_flip = true;
 558
 559         drm_kms_helper_poll_init(dev);
 560         drm_kms_helper_poll_disable(dev);
 561
 562         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 563                 static const u16 oclass[] = {
 564                         GP104_DISP,
 565                         GP100_DISP,
 566                         GM200_DISP,
 567                         GM107_DISP,
 568                         GK110_DISP,
 569                         GK104_DISP,
 570                         GF110_DISP,
 571                         GT214_DISP,
 572                         GT206_DISP,
 573                         GT200_DISP,
 574                         G82_DISP,
 575                         NV50_DISP,
 576                         NV04_DISP,
 577                 };
 578                 int i;
 579
 580                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
 581                         ret = nvif_object_init(&drm->device.object, 0,
 582                                                oclass[i], NULL, 0, &disp->disp);
 583                 }
 584
 585                 if (ret == 0) {
 586                         nouveau_display_create_properties(dev);
 587                         if (disp->disp.oclass < NV50_DISP)
 588                                 ret = nv04_display_create(dev);
 589                         else
 590                                 ret = nv50_display_create(dev);
 591                 }
 592         } else {
 593                 ret = 0;
 594         }
 595
 596         if (ret)
 597                 goto disp_create_err;
 598
 599         if (dev->mode_config.num_crtc) {
 600                 ret = nouveau_display_vblank_init(dev);
 601                 if (ret)
 602                         goto vblank_err;
 603         }
 604
 605         nouveau_backlight_init(dev);
 606         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 607 #ifdef CONFIG_ACPI
 608         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 609         register_acpi_notifier(&drm->acpi_nb);
 610 #endif
 611
 612         return 0;
 613
 614 vblank_err:
 615         disp->dtor(dev);
 616 disp_create_err:
 617         drm_kms_helper_poll_fini(dev);
 618         drm_mode_config_cleanup(dev);
 619         return ret;
 620 }
 621
 622 void
 623 nouveau_display_destroy(struct drm_device *dev)
 624 {
 625         struct nouveau_display *disp = nouveau_display(dev);
 626
 627 #ifdef CONFIG_ACPI
 628         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 629 #endif
 630         nouveau_backlight_exit(dev);
 631         nouveau_display_vblank_fini(dev);
 632
 633         drm_kms_helper_poll_fini(dev);
 634         drm_crtc_force_disable_all(dev);
 635         drm_mode_config_cleanup(dev);
 636
 637         if (disp->dtor)
 638                 disp->dtor(dev);
 639
 640         nvif_object_fini(&disp->disp);
 641
 642         nouveau_drm(dev)->display = NULL;
 643         kfree(disp);
 644 }
 645
 646 int
 647 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 648 {
 649         struct drm_crtc *crtc;
 650
 651         nouveau_display_fini(dev);
 652
 653         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 654                 struct nouveau_framebuffer *nouveau_fb;
 655
 656                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 657                 if (!nouveau_fb || !nouveau_fb->nvbo)
 658                         continue;
 659
 660                 nouveau_bo_unpin(nouveau_fb->nvbo);
 661         }
 662
 663         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 664                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 665                 if (nv_crtc->cursor.nvbo) {
 666                         if (nv_crtc->cursor.set_offset)
 667                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 668                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 669                 }
 670         }
 671
 672         return 0;
 673 }
 674
 675 void
 676 nouveau_display_resume(struct drm_device *dev, bool runtime)
 677 {
 678         struct nouveau_drm *drm = nouveau_drm(dev);
 679         struct drm_crtc *crtc;
 680         int ret, head;
 681
 682         /* re-pin fb/cursors */
 683         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 684                 struct nouveau_framebuffer *nouveau_fb;
 685
 686                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
 687                 if (!nouveau_fb || !nouveau_fb->nvbo)
 688                         continue;
 689
 690                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
 691                 if (ret)
 692                         NV_ERROR(drm, "Could not pin framebuffer\n");
 693         }
 694
 695         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 696                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 697                 if (!nv_crtc->cursor.nvbo)
 698                         continue;
 699
 700                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
 701                 if (!ret && nv_crtc->cursor.set_offset)
 702                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
 703                 if (ret)
 704                         NV_ERROR(drm, "Could not pin/map cursor.\n");
 705         }
 706
 707         nouveau_display_init(dev);
 708
 709         /* Force CLUT to get re-loaded during modeset */
 710         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 711                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 712
 713                 nv_crtc->lut.depth = 0;
 714         }
 715
 716         /* This should ensure we don't hit a locking problem when someone
 717          * wakes us up via a connector.  We should never go into suspend
 718          * while the display is on anyways.
 719          */
 720         if (runtime)
 721                 return;
 722
 723         drm_helper_resume_force_mode(dev);
 724
 725         /* Make sure that drm and hw vblank irqs get resumed if needed. */
 726         for (head = 0; head < dev->mode_config.num_crtc; head++)
 727                 drm_vblank_on(dev, head);
 728
 729         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 730                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 731
 732                 if (!nv_crtc->cursor.nvbo)
 733                         continue;
 734
 735                 if (nv_crtc->cursor.set_offset)
 736                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
 737                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
 738                                                  nv_crtc->cursor_saved_y);
 739         }
 740 }
 741
 742 static int
 743 nouveau_page_flip_emit(struct nouveau_channel *chan,
 744                        struct nouveau_bo *old_bo,
 745                        struct nouveau_bo *new_bo,
 746                        struct nouveau_page_flip_state *s,
 747                        struct nouveau_fence **pfence)
 748 {
 749         struct nouveau_fence_chan *fctx = chan->fence;
 750         struct nouveau_drm *drm = chan->drm;
 751         struct drm_device *dev = drm->dev;
 752         unsigned long flags;
 753         int ret;
 754
 755         /* Queue it to the pending list */
 756         spin_lock_irqsave(&dev->event_lock, flags);
 757         list_add_tail(&s->head, &fctx->flip);
 758         spin_unlock_irqrestore(&dev->event_lock, flags);
 759
 760         /* Synchronize with the old framebuffer */
 761         ret = nouveau_fence_sync(old_bo, chan, false, false);
 762         if (ret)
 763                 goto fail;
 764
 765         /* Emit the pageflip */
 766         ret = RING_SPACE(chan, 2);
 767         if (ret)
 768                 goto fail;
 769
 770         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI)
 771                 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
 772         else
 773                 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
 774         OUT_RING  (chan, 0x00000000);
 775         FIRE_RING (chan);
 776
 777         ret = nouveau_fence_new(chan, false, pfence);
 778         if (ret)
 779                 goto fail;
 780
 781         return 0;
 782 fail:
 783         spin_lock_irqsave(&dev->event_lock, flags);
 784         list_del(&s->head);
 785         spin_unlock_irqrestore(&dev->event_lock, flags);
 786         return ret;
 787 }
 788
 789 int
 790 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 791                        struct drm_pending_vblank_event *event, u32 flags)
 792 {
 793         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 794         struct drm_device *dev = crtc->dev;
 795         struct nouveau_drm *drm = nouveau_drm(dev);
 796         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
 797         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 798         struct nouveau_page_flip_state *s;
 799         struct nouveau_channel *chan;
 800         struct nouveau_cli *cli;
 801         struct nouveau_fence *fence;
 802         int ret;
 803
 804         chan = drm->channel;
 805         if (!chan)
 806                 return -ENODEV;
 807         cli = (void *)chan->user.client;
 808
 809         s = kzalloc(sizeof(*s), GFP_KERNEL);
 810         if (!s)
 811                 return -ENOMEM;
 812
 813         if (new_bo != old_bo) {
 814                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
 815                 if (ret)
 816                         goto fail_free;
 817         }
 818
 819         mutex_lock(&cli->mutex);
 820         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
 821         if (ret)
 822                 goto fail_unpin;
 823
 824         /* synchronise rendering channel with the kernel's channel */
 825         ret = nouveau_fence_sync(new_bo, chan, false, true);
 826         if (ret) {
 827                 ttm_bo_unreserve(&new_bo->bo);
 828                 goto fail_unpin;
 829         }
 830
 831         if (new_bo != old_bo) {
 832                 ttm_bo_unreserve(&new_bo->bo);
 833
 834                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
 835                 if (ret)
 836                         goto fail_unpin;
 837         }
 838
 839         /* Initialize a page flip struct */
 840         *s = (struct nouveau_page_flip_state)
 841                 { { }, event, crtc, fb->bits_per_pixel, fb->pitches[0],
 842                   new_bo->bo.offset };
 843
 844         /* Keep vblanks on during flip, for the target crtc of this flip */
 845         drm_crtc_vblank_get(crtc);
 846
 847         /* Emit a page flip */
 848         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
 849                 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
 850                 if (ret)
 851                         goto fail_unreserve;
 852         } else {
 853                 struct nv04_display *dispnv04 = nv04_display(dev);
 854                 int head = nouveau_crtc(crtc)->index;
 855
 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
 874         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
 875         if (ret)
 876                 goto fail_unreserve;
 877         mutex_unlock(&cli->mutex);
 878
 879         /* Update the crtc struct and cleanup */
 880         crtc->primary->fb = fb;
 881
 882         nouveau_bo_fence(old_bo, fence, false);
 883         ttm_bo_unreserve(&old_bo->bo);
 884         if (old_bo != new_bo)
 885                 nouveau_bo_unpin(old_bo);
 886         nouveau_fence_unref(&fence);
 887         return 0;
 888
 889 fail_unreserve:
 890         drm_crtc_vblank_put(crtc);
 891         ttm_bo_unreserve(&old_bo->bo);
 892 fail_unpin:
 893         mutex_unlock(&cli->mutex);
 894         if (old_bo != new_bo)
 895                 nouveau_bo_unpin(new_bo);
 896 fail_free:
 897         kfree(s);
 898         return ret;
 899 }
 900
 901 int
 902 nouveau_finish_page_flip(struct nouveau_channel *chan,
 903                          struct nouveau_page_flip_state *ps)
 904 {
 905         struct nouveau_fence_chan *fctx = chan->fence;
 906         struct nouveau_drm *drm = chan->drm;
 907         struct drm_device *dev = drm->dev;
 908         struct nouveau_page_flip_state *s;
 909         unsigned long flags;
 910
 911         spin_lock_irqsave(&dev->event_lock, flags);
 912
 913         if (list_empty(&fctx->flip)) {
 914                 NV_ERROR(drm, "unexpected pageflip\n");
 915                 spin_unlock_irqrestore(&dev->event_lock, flags);
 916                 return -EINVAL;
 917         }
 918
 919         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
 920         if (s->event) {
 921                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 922                         drm_crtc_arm_vblank_event(s->crtc, s->event);
 923                 } else {
 924                         drm_crtc_send_vblank_event(s->crtc, s->event);
 925
 926                         /* Give up ownership of vblank for page-flipped crtc */
 927                         drm_crtc_vblank_put(s->crtc);
 928                 }
 929         }
 930         else {
 931                 /* Give up ownership of vblank for page-flipped crtc */
 932                 drm_crtc_vblank_put(s->crtc);
 933         }
 934
 935         list_del(&s->head);
 936         if (ps)
 937                 *ps = *s;
 938         kfree(s);
 939
 940         spin_unlock_irqrestore(&dev->event_lock, flags);
 941         return 0;
 942 }
 943
 944 int
 945 nouveau_flip_complete(struct nvif_notify *notify)
 946 {
 947         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
 948         struct nouveau_channel *chan = drm->channel;
 949         struct nouveau_page_flip_state state;
 950
 951         if (!nouveau_finish_page_flip(chan, &state)) {
 952                 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 953                         nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
 954                                          state.offset + state.crtc->y *
 955                                          state.pitch + state.crtc->x *
 956                                          state.bpp / 8);
 957                 }
 958         }
 959
 960         return NVIF_NOTIFY_KEEP;
 961 }
 962
 963 int
 964 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 965                             struct drm_mode_create_dumb *args)
 966 {
 967         struct nouveau_bo *bo;
 968         uint32_t domain;
 969         int ret;
 970
 971         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 972         args->size = args->pitch * args->height;
 973         args->size = roundup(args->size, PAGE_SIZE);
 974
 975         /* Use VRAM if there is any ; otherwise fallback to system memory */
 976         if (nouveau_drm(dev)->device.info.ram_size != 0)
 977                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 978         else
 979                 domain = NOUVEAU_GEM_DOMAIN_GART;
 980
 981         ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo);
 982         if (ret)
 983                 return ret;
 984
 985         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
 986         drm_gem_object_unreference_unlocked(&bo->gem);
 987         return ret;
 988 }
 989
 990 int
 991 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 992                                 struct drm_device *dev,
 993                                 uint32_t handle, uint64_t *poffset)
 994 {
 995         struct drm_gem_object *gem;
 996
 997         gem = drm_gem_object_lookup(file_priv, handle);
 998         if (gem) {
 999                 struct nouveau_bo *bo = nouveau_gem_object(gem);
1000                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
1001                 drm_gem_object_unreference_unlocked(gem);
1002                 return 0;
1003         }
1004
1005         return -ENOENT;
1006 }