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
  29 #include <drm/drm_atomic.h>
  30 #include <drm/drm_atomic_helper.h>
  31 #include <drm/drm_client_event.h>
  32 #include <drm/drm_crtc_helper.h>
  33 #include <drm/drm_fourcc.h>
  34 #include <drm/drm_gem_framebuffer_helper.h>
  35 #include <drm/drm_probe_helper.h>
  36 #include <drm/drm_vblank.h>
  37
  38 #include "nouveau_crtc.h"
  39 #include "nouveau_gem.h"
  40 #include "nouveau_connector.h"
  41 #include "nv50_display.h"
  42
  43 #include <nvif/class.h>
  44 #include <nvif/if0011.h>
  45 #include <nvif/if0013.h>
  46 #include <dispnv50/crc.h>
  47 #include <dispnv50/tile.h>
  48
  49 int
  50 nouveau_display_vblank_enable(struct drm_crtc *crtc)
  51 {
  52         struct nouveau_crtc *nv_crtc;
  53
  54         nv_crtc = nouveau_crtc(crtc);
  55         nvif_event_allow(&nv_crtc->vblank);
  56
  57         return 0;
  58 }
  59
  60 void
  61 nouveau_display_vblank_disable(struct drm_crtc *crtc)
  62 {
  63         struct nouveau_crtc *nv_crtc;
  64
  65         nv_crtc = nouveau_crtc(crtc);
  66         nvif_event_block(&nv_crtc->vblank);
  67 }
  68
  69 static inline int
  70 calc(int blanks, int blanke, int total, int line)
  71 {
  72         if (blanke >= blanks) {
  73                 if (line >= blanks)
  74                         line -= total;
  75         } else {
  76                 if (line >= blanks)
  77                         line -= total;
  78                 line -= blanke + 1;
  79         }
  80         return line;
  81 }
  82
  83 static bool
  84 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
  85                                 ktime_t *stime, ktime_t *etime)
  86 {
  87         struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc);
  88         struct nvif_head *head = &nouveau_crtc(crtc)->head;
  89         struct nvif_head_scanoutpos_v0 args;
  90         int retry = 20;
  91         bool ret = false;
  92
  93         args.version = 0;
  94
  95         do {
  96                 ret = nvif_mthd(&head->object, NVIF_HEAD_V0_SCANOUTPOS, &args, sizeof(args));
  97                 if (ret != 0)
  98                         return false;
  99
 100                 if (args.vline) {
 101                         ret = true;
 102                         break;
 103                 }
 104
 105                 if (retry) ndelay(vblank->linedur_ns);
 106         } while (retry--);
 107
 108         *hpos = args.hline;
 109         *vpos = calc(args.vblanks, args.vblanke, args.vtotal, args.vline);
 110         if (stime) *stime = ns_to_ktime(args.time[0]);
 111         if (etime) *etime = ns_to_ktime(args.time[1]);
 112
 113         return ret;
 114 }
 115
 116 bool
 117 nouveau_display_scanoutpos(struct drm_crtc *crtc,
 118                            bool in_vblank_irq, int *vpos, int *hpos,
 119                            ktime_t *stime, ktime_t *etime,
 120                            const struct drm_display_mode *mode)
 121 {
 122         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 123                                                stime, etime);
 124 }
 125
 126 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 127         .destroy = drm_gem_fb_destroy,
 128         .create_handle = drm_gem_fb_create_handle,
 129 };
 130
 131 static void
 132 nouveau_decode_mod(struct nouveau_drm *drm,
 133                    uint64_t modifier,
 134                    uint32_t *tile_mode,
 135                    uint8_t *kind)
 136 {
 137         struct nouveau_display *disp = nouveau_display(drm->dev);
 138         BUG_ON(!tile_mode || !kind);
 139
 140         if (modifier == DRM_FORMAT_MOD_LINEAR) {
 141                 /* tile_mode will not be used in this case */
 142                 *tile_mode = 0;
 143                 *kind = 0;
 144         } else {
 145                 /*
 146                  * Extract the block height and kind from the corresponding
 147                  * modifier fields.  See drm_fourcc.h for details.
 148                  */
 149
 150                 if ((modifier & (0xffull << 12)) == 0ull) {
 151                         /* Legacy modifier.  Translate to this dev's 'kind.' */
 152                         modifier |= disp->format_modifiers[0] & (0xffull << 12);
 153                 }
 154
 155                 *tile_mode = (uint32_t)(modifier & 0xF);
 156                 *kind = (uint8_t)((modifier >> 12) & 0xFF);
 157
 158                 if (drm->client.device.info.chipset >= 0xc0)
 159                         *tile_mode <<= 4;
 160         }
 161 }
 162
 163 void
 164 nouveau_framebuffer_get_layout(struct drm_framebuffer *fb,
 165                                uint32_t *tile_mode,
 166                                uint8_t *kind)
 167 {
 168         if (fb->flags & DRM_MODE_FB_MODIFIERS) {
 169                 struct nouveau_drm *drm = nouveau_drm(fb->dev);
 170
 171                 nouveau_decode_mod(drm, fb->modifier, tile_mode, kind);
 172         } else {
 173                 const struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 174
 175                 *tile_mode = nvbo->mode;
 176                 *kind = nvbo->kind;
 177         }
 178 }
 179
 180 static const u64 legacy_modifiers[] = {
 181         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0),
 182         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1),
 183         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2),
 184         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3),
 185         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4),
 186         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5),
 187         DRM_FORMAT_MOD_INVALID
 188 };
 189
 190 static int
 191 nouveau_validate_decode_mod(struct nouveau_drm *drm,
 192                             uint64_t modifier,
 193                             uint32_t *tile_mode,
 194                             uint8_t *kind)
 195 {
 196         struct nouveau_display *disp = nouveau_display(drm->dev);
 197         int mod;
 198
 199         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 200                 return -EINVAL;
 201         }
 202
 203         BUG_ON(!disp->format_modifiers);
 204
 205         for (mod = 0;
 206              (disp->format_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
 207              (disp->format_modifiers[mod] != modifier);
 208              mod++);
 209
 210         if (disp->format_modifiers[mod] == DRM_FORMAT_MOD_INVALID) {
 211                 for (mod = 0;
 212                      (legacy_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
 213                      (legacy_modifiers[mod] != modifier);
 214                      mod++);
 215                 if (legacy_modifiers[mod] == DRM_FORMAT_MOD_INVALID)
 216                         return -EINVAL;
 217         }
 218
 219         nouveau_decode_mod(drm, modifier, tile_mode, kind);
 220
 221         return 0;
 222 }
 223
 224 static int
 225 nouveau_check_bl_size(struct nouveau_drm *drm, struct nouveau_bo *nvbo,
 226                       uint32_t offset, uint32_t stride, uint32_t h,
 227                       uint32_t tile_mode)
 228 {
 229         uint32_t gob_size, bw, bh, gobs_in_block;
 230         uint64_t bl_size;
 231
 232         BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
 233
 234         if (nouveau_check_tile_mode(tile_mode, drm->client.device.info.chipset))
 235                 return -EINVAL;
 236
 237         gobs_in_block = nouveau_get_gobs_in_block(tile_mode, drm->client.device.info.chipset);
 238         bw = nouveau_get_width_in_blocks(stride);
 239         bh = nouveau_get_height_in_blocks(h, gobs_in_block, drm->client.device.info.family);
 240         gob_size = nouveau_get_gob_size(drm->client.device.info.family);
 241
 242         bl_size = bw * bh * gobs_in_block * gob_size;
 243
 244         DRM_DEBUG_KMS("offset=%u stride=%u h=%u gobs_in_block=%u bw=%u bh=%u gob_size=%u bl_size=%llu size=%zu\n",
 245                       offset, stride, h, gobs_in_block, bw, bh, gob_size,
 246                       bl_size, nvbo->bo.base.size);
 247
 248         if (bl_size + offset > nvbo->bo.base.size)
 249                 return -ERANGE;
 250
 251         return 0;
 252 }
 253
 254 int
 255 nouveau_framebuffer_new(struct drm_device *dev,
 256                         const struct drm_mode_fb_cmd2 *mode_cmd,
 257                         struct drm_gem_object *gem,
 258                         struct drm_framebuffer **pfb)
 259 {
 260         struct nouveau_drm *drm = nouveau_drm(dev);
 261         struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 262         struct drm_framebuffer *fb;
 263         const struct drm_format_info *info;
 264         unsigned int height, i;
 265         uint32_t tile_mode;
 266         uint8_t kind;
 267         int ret;
 268
 269         /* YUV overlays have special requirements pre-NV50 */
 270         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
 271
 272             (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
 273              mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
 274              mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
 275              mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
 276             (mode_cmd->pitches[0] & 0x3f || /* align 64 */
 277              mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
 278              (mode_cmd->pitches[1] && /* pitches for planes must match */
 279               mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
 280                 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %p4cc; pitches: 0x%x\n 0x%x\n",
 281                               &mode_cmd->pixel_format,
 282                               mode_cmd->pitches[0], mode_cmd->pitches[1]);
 283                 return -EINVAL;
 284         }
 285
 286         if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
 287                 if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
 288                                                 &tile_mode, &kind)) {
 289                         DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
 290                                       mode_cmd->modifier[0]);
 291                         return -EINVAL;
 292                 }
 293         } else {
 294                 tile_mode = nvbo->mode;
 295                 kind = nvbo->kind;
 296         }
 297
 298         info = drm_get_format_info(dev, mode_cmd);
 299
 300         for (i = 0; i < info->num_planes; i++) {
 301                 height = drm_format_info_plane_height(info,
 302                                                       mode_cmd->height,
 303                                                       i);
 304
 305                 if (kind) {
 306                         ret = nouveau_check_bl_size(drm, nvbo,
 307                                                     mode_cmd->offsets[i],
 308                                                     mode_cmd->pitches[i],
 309                                                     height, tile_mode);
 310                         if (ret)
 311                                 return ret;
 312                 } else {
 313                         uint32_t size = mode_cmd->pitches[i] * height;
 314
 315                         if (size + mode_cmd->offsets[i] > nvbo->bo.base.size)
 316                                 return -ERANGE;
 317                 }
 318         }
 319
 320         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 321                 return -ENOMEM;
 322
 323         drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
 324         fb->obj[0] = gem;
 325
 326         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 327         if (ret)
 328                 kfree(fb);
 329         return ret;
 330 }
 331
 332 struct drm_framebuffer *
 333 nouveau_user_framebuffer_create(struct drm_device *dev,
 334                                 struct drm_file *file_priv,
 335                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 336 {
 337         struct drm_framebuffer *fb;
 338         struct drm_gem_object *gem;
 339         int ret;
 340
 341         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 342         if (!gem)
 343                 return ERR_PTR(-ENOENT);
 344
 345         ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 346         if (ret == 0)
 347                 return fb;
 348
 349         drm_gem_object_put(gem);
 350         return ERR_PTR(ret);
 351 }
 352
 353 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 354         .fb_create = nouveau_user_framebuffer_create,
 355 };
 356
 357
 358 struct nouveau_drm_prop_enum_list {
 359         u8 gen_mask;
 360         int type;
 361         char *name;
 362 };
 363
 364 static struct nouveau_drm_prop_enum_list underscan[] = {
 365         { 6, UNDERSCAN_AUTO, "auto" },
 366         { 6, UNDERSCAN_OFF, "off" },
 367         { 6, UNDERSCAN_ON, "on" },
 368         {}
 369 };
 370
 371 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 372         { 7, DITHERING_MODE_AUTO, "auto" },
 373         { 7, DITHERING_MODE_OFF, "off" },
 374         { 1, DITHERING_MODE_ON, "on" },
 375         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 376         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 377         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 378         {}
 379 };
 380
 381 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 382         { 6, DITHERING_DEPTH_AUTO, "auto" },
 383         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 384         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 385         {}
 386 };
 387
 388 #define PROP_ENUM(p,gen,n,list) do {                                           \
 389         struct nouveau_drm_prop_enum_list *l = (list);                         \
 390         int c = 0;                                                             \
 391         while (l->gen_mask) {                                                  \
 392                 if (l->gen_mask & (1 << (gen)))                                \
 393                         c++;                                                   \
 394                 l++;                                                           \
 395         }                                                                      \
 396         if (c) {                                                               \
 397                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 398                 l = (list);                                                    \
 399                 while (p && l->gen_mask) {                                     \
 400                         if (l->gen_mask & (1 << (gen))) {                      \
 401                                 drm_property_add_enum(p, l->type, l->name);    \
 402                         }                                                      \
 403                         l++;                                                   \
 404                 }                                                              \
 405         }                                                                      \
 406 } while(0)
 407
 408 void
 409 nouveau_display_hpd_resume(struct nouveau_drm *drm)
 410 {
 411         if (drm->headless)
 412                 return;
 413
 414         spin_lock_irq(&drm->hpd_lock);
 415         drm->hpd_pending = ~0;
 416         spin_unlock_irq(&drm->hpd_lock);
 417
 418         schedule_work(&drm->hpd_work);
 419 }
 420
 421 static void
 422 nouveau_display_hpd_work(struct work_struct *work)
 423 {
 424         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 425         struct drm_device *dev = drm->dev;
 426         struct drm_connector *connector;
 427         struct drm_connector_list_iter conn_iter;
 428         u32 pending;
 429         int changed = 0;
 430         struct drm_connector *first_changed_connector = NULL;
 431
 432         pm_runtime_get_sync(dev->dev);
 433
 434         spin_lock_irq(&drm->hpd_lock);
 435         pending = drm->hpd_pending;
 436         drm->hpd_pending = 0;
 437         spin_unlock_irq(&drm->hpd_lock);
 438
 439         /* Nothing to do, exit early without updating the last busy counter */
 440         if (!pending)
 441                 goto noop;
 442
 443         mutex_lock(&dev->mode_config.mutex);
 444         drm_connector_list_iter_begin(dev, &conn_iter);
 445
 446         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 447                 struct nouveau_connector *nv_connector = nouveau_connector(connector);
 448                 enum drm_connector_status old_status = connector->status;
 449                 u64 bits, old_epoch_counter = connector->epoch_counter;
 450
 451                 if (!(pending & drm_connector_mask(connector)))
 452                         continue;
 453
 454                 spin_lock_irq(&drm->hpd_lock);
 455                 bits = nv_connector->hpd_pending;
 456                 nv_connector->hpd_pending = 0;
 457                 spin_unlock_irq(&drm->hpd_lock);
 458
 459                 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] plug:%d unplug:%d irq:%d\n",
 460                             connector->base.id, connector->name,
 461                             !!(bits & NVIF_CONN_EVENT_V0_PLUG),
 462                             !!(bits & NVIF_CONN_EVENT_V0_UNPLUG),
 463                             !!(bits & NVIF_CONN_EVENT_V0_IRQ));
 464
 465                 if (bits & NVIF_CONN_EVENT_V0_IRQ) {
 466                         if (nouveau_dp_link_check(nv_connector))
 467                                 continue;
 468                 }
 469
 470                 connector->status = drm_helper_probe_detect(connector, NULL, false);
 471                 if (old_epoch_counter == connector->epoch_counter)
 472                         continue;
 473
 474                 changed++;
 475                 if (!first_changed_connector) {
 476                         drm_connector_get(connector);
 477                         first_changed_connector = connector;
 478                 }
 479
 480                 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
 481                             connector->base.id, connector->name,
 482                             drm_get_connector_status_name(old_status),
 483                             drm_get_connector_status_name(connector->status),
 484                             old_epoch_counter, connector->epoch_counter);
 485         }
 486
 487         drm_connector_list_iter_end(&conn_iter);
 488         mutex_unlock(&dev->mode_config.mutex);
 489
 490         if (changed == 1)
 491                 drm_kms_helper_connector_hotplug_event(first_changed_connector);
 492         else if (changed > 0)
 493                 drm_kms_helper_hotplug_event(dev);
 494
 495         if (first_changed_connector)
 496                 drm_connector_put(first_changed_connector);
 497
 498         pm_runtime_mark_last_busy(drm->dev->dev);
 499 noop:
 500         pm_runtime_put_autosuspend(dev->dev);
 501 }
 502
 503 #ifdef CONFIG_ACPI
 504
 505 static int
 506 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 507                           void *data)
 508 {
 509         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 510         struct acpi_bus_event *info = data;
 511         int ret;
 512
 513         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 514                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 515                         ret = pm_runtime_get(drm->dev->dev);
 516                         if (ret == 1 || ret == -EACCES) {
 517                                 /* If the GPU is already awake, or in a state
 518                                  * where we can't wake it up, it can handle
 519                                  * it's own hotplug events.
 520                                  */
 521                                 pm_runtime_put_autosuspend(drm->dev->dev);
 522                         } else if (ret == 0 || ret == -EINPROGRESS) {
 523                                 /* We've started resuming the GPU already, so
 524                                  * it will handle scheduling a full reprobe
 525                                  * itself
 526                                  */
 527                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 528                                 pm_runtime_put_noidle(drm->dev->dev);
 529                         } else {
 530                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 531                                         ret);
 532                         }
 533
 534                         /* acpi-video should not generate keypresses for this */
 535                         return NOTIFY_BAD;
 536                 }
 537         }
 538
 539         return NOTIFY_DONE;
 540 }
 541 #endif
 542
 543 int
 544 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
 545 {
 546         struct nouveau_display *disp = nouveau_display(dev);
 547         struct drm_connector *connector;
 548         struct drm_connector_list_iter conn_iter;
 549         int ret;
 550
 551         /*
 552          * Enable hotplug interrupts (done as early as possible, since we need
 553          * them for MST)
 554          */
 555         drm_connector_list_iter_begin(dev, &conn_iter);
 556         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 557                 struct nouveau_connector *conn = nouveau_connector(connector);
 558                 nvif_event_allow(&conn->hpd);
 559                 nvif_event_allow(&conn->irq);
 560         }
 561         drm_connector_list_iter_end(&conn_iter);
 562
 563         ret = disp->init(dev, resume, runtime);
 564         if (ret)
 565                 return ret;
 566
 567         /* enable connector detection and polling for connectors without HPD
 568          * support
 569          */
 570         drm_kms_helper_poll_enable(dev);
 571
 572         return ret;
 573 }
 574
 575 void
 576 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 577 {
 578         struct nouveau_display *disp = nouveau_display(dev);
 579         struct nouveau_drm *drm = nouveau_drm(dev);
 580         struct drm_connector *connector;
 581         struct drm_connector_list_iter conn_iter;
 582
 583         if (!suspend) {
 584                 if (drm_drv_uses_atomic_modeset(dev))
 585                         drm_atomic_helper_shutdown(dev);
 586                 else
 587                         drm_helper_force_disable_all(dev);
 588         }
 589
 590         /* disable hotplug interrupts */
 591         drm_connector_list_iter_begin(dev, &conn_iter);
 592         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 593                 struct nouveau_connector *conn = nouveau_connector(connector);
 594                 nvif_event_block(&conn->irq);
 595                 nvif_event_block(&conn->hpd);
 596         }
 597         drm_connector_list_iter_end(&conn_iter);
 598
 599         if (!runtime && !drm->headless)
 600                 cancel_work_sync(&drm->hpd_work);
 601
 602         drm_kms_helper_poll_disable(dev);
 603         disp->fini(dev, runtime, suspend);
 604 }
 605
 606 static void
 607 nouveau_display_create_properties(struct drm_device *dev)
 608 {
 609         struct nouveau_display *disp = nouveau_display(dev);
 610         int gen;
 611
 612         if (disp->disp.object.oclass < NV50_DISP)
 613                 gen = 0;
 614         else
 615         if (disp->disp.object.oclass < GF110_DISP)
 616                 gen = 1;
 617         else
 618                 gen = 2;
 619
 620         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 621         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 622         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 623
 624         disp->underscan_hborder_property =
 625                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 626
 627         disp->underscan_vborder_property =
 628                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 629
 630         if (gen < 1)
 631                 return;
 632
 633         /* -90..+90 */
 634         disp->vibrant_hue_property =
 635                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 636
 637         /* -100..+100 */
 638         disp->color_vibrance_property =
 639                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 640 }
 641
 642 int
 643 nouveau_display_create(struct drm_device *dev)
 644 {
 645         struct nouveau_drm *drm = nouveau_drm(dev);
 646         struct nouveau_display *disp;
 647         int ret;
 648
 649         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 650         if (!disp)
 651                 return -ENOMEM;
 652
 653         drm_mode_config_init(dev);
 654         drm_mode_create_scaling_mode_property(dev);
 655         drm_mode_create_dvi_i_properties(dev);
 656
 657         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 658
 659         dev->mode_config.min_width = 0;
 660         dev->mode_config.min_height = 0;
 661         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 662                 dev->mode_config.max_width = 2048;
 663                 dev->mode_config.max_height = 2048;
 664         } else
 665         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 666                 dev->mode_config.max_width = 4096;
 667                 dev->mode_config.max_height = 4096;
 668         } else
 669         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 670                 dev->mode_config.max_width = 8192;
 671                 dev->mode_config.max_height = 8192;
 672         } else {
 673                 dev->mode_config.max_width = 16384;
 674                 dev->mode_config.max_height = 16384;
 675         }
 676
 677         dev->mode_config.preferred_depth = 24;
 678         dev->mode_config.prefer_shadow = 1;
 679
 680         if (drm->client.device.info.chipset < 0x11)
 681                 dev->mode_config.async_page_flip = false;
 682         else
 683                 dev->mode_config.async_page_flip = true;
 684
 685         drm_kms_helper_poll_init(dev);
 686         drm_kms_helper_poll_disable(dev);
 687
 688         if (nouveau_modeset != 2) {
 689                 ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0, &disp->disp);
 690                 /* no display hw */
 691                 if (ret == -ENODEV) {
 692                         ret = 0;
 693                         drm->headless = true;
 694                         goto disp_create_err;
 695                 }
 696
 697                 if (!ret && (disp->disp.outp_mask || drm->vbios.dcb.entries)) {
 698                         nouveau_display_create_properties(dev);
 699                         if (disp->disp.object.oclass < NV50_DISP) {
 700                                 dev->mode_config.fb_modifiers_not_supported = true;
 701                                 ret = nv04_display_create(dev);
 702                         } else {
 703                                 ret = nv50_display_create(dev);
 704                         }
 705                 }
 706         } else {
 707                 ret = 0;
 708         }
 709
 710         if (ret)
 711                 goto disp_create_err;
 712
 713         drm_mode_config_reset(dev);
 714
 715         if (dev->mode_config.num_crtc) {
 716                 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 717                 if (ret)
 718                         goto vblank_err;
 719
 720                 if (disp->disp.object.oclass >= NV50_DISP)
 721                         nv50_crc_init(dev);
 722         }
 723
 724         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 725         spin_lock_init(&drm->hpd_lock);
 726 #ifdef CONFIG_ACPI
 727         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 728         register_acpi_notifier(&drm->acpi_nb);
 729 #endif
 730
 731         return 0;
 732
 733 vblank_err:
 734         disp->dtor(dev);
 735 disp_create_err:
 736         drm_kms_helper_poll_fini(dev);
 737         drm_mode_config_cleanup(dev);
 738         return ret;
 739 }
 740
 741 void
 742 nouveau_display_destroy(struct drm_device *dev)
 743 {
 744         struct nouveau_display *disp = nouveau_display(dev);
 745         struct nouveau_drm *drm = nouveau_drm(dev);
 746
 747 #ifdef CONFIG_ACPI
 748         unregister_acpi_notifier(&drm->acpi_nb);
 749 #endif
 750
 751         drm_kms_helper_poll_fini(dev);
 752         drm_mode_config_cleanup(dev);
 753
 754         if (disp->dtor)
 755                 disp->dtor(dev);
 756
 757         nvif_disp_dtor(&disp->disp);
 758
 759         drm->display = NULL;
 760         kfree(disp);
 761 }
 762
 763 int
 764 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 765 {
 766         struct nouveau_display *disp = nouveau_display(dev);
 767
 768         drm_client_dev_suspend(dev, false);
 769
 770         if (drm_drv_uses_atomic_modeset(dev)) {
 771                 if (!runtime) {
 772                         disp->suspend = drm_atomic_helper_suspend(dev);
 773                         if (IS_ERR(disp->suspend)) {
 774                                 int ret = PTR_ERR(disp->suspend);
 775                                 disp->suspend = NULL;
 776                                 return ret;
 777                         }
 778                 }
 779         }
 780
 781         nouveau_display_fini(dev, true, runtime);
 782         return 0;
 783 }
 784
 785 void
 786 nouveau_display_resume(struct drm_device *dev, bool runtime)
 787 {
 788         struct nouveau_display *disp = nouveau_display(dev);
 789
 790         nouveau_display_init(dev, true, runtime);
 791
 792         if (drm_drv_uses_atomic_modeset(dev)) {
 793                 if (disp->suspend) {
 794                         drm_atomic_helper_resume(dev, disp->suspend);
 795                         disp->suspend = NULL;
 796                 }
 797         }
 798
 799         drm_client_dev_resume(dev, false);
 800 }
 801
 802 int
 803 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 804                             struct drm_mode_create_dumb *args)
 805 {
 806         struct nouveau_cli *cli = nouveau_cli(file_priv);
 807         struct nouveau_bo *bo;
 808         uint32_t domain;
 809         int ret;
 810
 811         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 812         args->size = args->pitch * args->height;
 813         args->size = roundup(args->size, PAGE_SIZE);
 814
 815         /* Use VRAM if there is any ; otherwise fallback to system memory */
 816         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 817                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 818         else
 819                 domain = NOUVEAU_GEM_DOMAIN_GART;
 820
 821         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 822         if (ret)
 823                 return ret;
 824
 825         ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
 826         drm_gem_object_put(&bo->bo.base);
 827         return ret;
 828 }