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_crtc_helper.h>
  32 #include <drm/drm_fb_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_fbcon.h"
  39 #include "nouveau_crtc.h"
  40 #include "nouveau_gem.h"
  41 #include "nouveau_connector.h"
  42 #include "nv50_display.h"
  43
  44 #include <nvif/class.h>
  45 #include <nvif/cl0046.h>
  46 #include <nvif/event.h>
  47 #include <dispnv50/crc.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_notify_get(&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_notify_put(&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 {
  88                 struct nv04_disp_mthd_v0 base;
  89                 struct nv04_disp_scanoutpos_v0 scan;
  90         } args = {
  91                 .base.method = NV04_DISP_SCANOUTPOS,
  92                 .base.head = nouveau_crtc(crtc)->index,
  93         };
  94         struct nouveau_display *disp = nouveau_display(crtc->dev);
  95         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
  96         int retry = 20;
  97         bool ret = false;
  98
  99         do {
 100                 ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args));
 101                 if (ret != 0)
 102                         return false;
 103
 104                 if (args.scan.vline) {
 105                         ret = true;
 106                         break;
 107                 }
 108
 109                 if (retry) ndelay(vblank->linedur_ns);
 110         } while (retry--);
 111
 112         *hpos = args.scan.hline;
 113         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
 114                      args.scan.vtotal, args.scan.vline);
 115         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
 116         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
 117
 118         return ret;
 119 }
 120
 121 bool
 122 nouveau_display_scanoutpos(struct drm_crtc *crtc,
 123                            bool in_vblank_irq, int *vpos, int *hpos,
 124                            ktime_t *stime, ktime_t *etime,
 125                            const struct drm_display_mode *mode)
 126 {
 127         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
 128                                                stime, etime);
 129 }
 130
 131 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 132         .destroy = drm_gem_fb_destroy,
 133         .create_handle = drm_gem_fb_create_handle,
 134 };
 135
 136 static void
 137 nouveau_decode_mod(struct nouveau_drm *drm,
 138                    uint64_t modifier,
 139                    uint32_t *tile_mode,
 140                    uint8_t *kind)
 141 {
 142         struct nouveau_display *disp = nouveau_display(drm->dev);
 143         BUG_ON(!tile_mode || !kind);
 144
 145         if (modifier == DRM_FORMAT_MOD_LINEAR) {
 146                 /* tile_mode will not be used in this case */
 147                 *tile_mode = 0;
 148                 *kind = 0;
 149         } else {
 150                 /*
 151                  * Extract the block height and kind from the corresponding
 152                  * modifier fields.  See drm_fourcc.h for details.
 153                  */
 154
 155                 if ((modifier & (0xffull << 12)) == 0ull) {
 156                         /* Legacy modifier.  Translate to this dev's 'kind.' */
 157                         modifier |= disp->format_modifiers[0] & (0xffull << 12);
 158                 }
 159
 160                 *tile_mode = (uint32_t)(modifier & 0xF);
 161                 *kind = (uint8_t)((modifier >> 12) & 0xFF);
 162
 163                 if (drm->client.device.info.chipset >= 0xc0)
 164                         *tile_mode <<= 4;
 165         }
 166 }
 167
 168 void
 169 nouveau_framebuffer_get_layout(struct drm_framebuffer *fb,
 170                                uint32_t *tile_mode,
 171                                uint8_t *kind)
 172 {
 173         if (fb->flags & DRM_MODE_FB_MODIFIERS) {
 174                 struct nouveau_drm *drm = nouveau_drm(fb->dev);
 175
 176                 nouveau_decode_mod(drm, fb->modifier, tile_mode, kind);
 177         } else {
 178                 const struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 179
 180                 *tile_mode = nvbo->mode;
 181                 *kind = nvbo->kind;
 182         }
 183 }
 184
 185 static const u64 legacy_modifiers[] = {
 186         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0),
 187         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1),
 188         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2),
 189         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3),
 190         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4),
 191         DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5),
 192         DRM_FORMAT_MOD_INVALID
 193 };
 194
 195 static int
 196 nouveau_validate_decode_mod(struct nouveau_drm *drm,
 197                             uint64_t modifier,
 198                             uint32_t *tile_mode,
 199                             uint8_t *kind)
 200 {
 201         struct nouveau_display *disp = nouveau_display(drm->dev);
 202         int mod;
 203
 204         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 205                 return -EINVAL;
 206         }
 207
 208         BUG_ON(!disp->format_modifiers);
 209
 210         for (mod = 0;
 211              (disp->format_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
 212              (disp->format_modifiers[mod] != modifier);
 213              mod++);
 214
 215         if (disp->format_modifiers[mod] == DRM_FORMAT_MOD_INVALID) {
 216                 for (mod = 0;
 217                      (legacy_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
 218                      (legacy_modifiers[mod] != modifier);
 219                      mod++);
 220                 if (legacy_modifiers[mod] == DRM_FORMAT_MOD_INVALID)
 221                         return -EINVAL;
 222         }
 223
 224         nouveau_decode_mod(drm, modifier, tile_mode, kind);
 225
 226         return 0;
 227 }
 228
 229 static inline uint32_t
 230 nouveau_get_width_in_blocks(uint32_t stride)
 231 {
 232         /* GOBs per block in the x direction is always one, and GOBs are
 233          * 64 bytes wide
 234          */
 235         static const uint32_t log_block_width = 6;
 236
 237         return (stride + (1 << log_block_width) - 1) >> log_block_width;
 238 }
 239
 240 static inline uint32_t
 241 nouveau_get_height_in_blocks(struct nouveau_drm *drm,
 242                              uint32_t height,
 243                              uint32_t log_block_height_in_gobs)
 244 {
 245         uint32_t log_gob_height;
 246         uint32_t log_block_height;
 247
 248         BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
 249
 250         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
 251                 log_gob_height = 2;
 252         else
 253                 log_gob_height = 3;
 254
 255         log_block_height = log_block_height_in_gobs + log_gob_height;
 256
 257         return (height + (1 << log_block_height) - 1) >> log_block_height;
 258 }
 259
 260 static int
 261 nouveau_check_bl_size(struct nouveau_drm *drm, struct nouveau_bo *nvbo,
 262                       uint32_t offset, uint32_t stride, uint32_t h,
 263                       uint32_t tile_mode)
 264 {
 265         uint32_t gob_size, bw, bh;
 266         uint64_t bl_size;
 267
 268         BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
 269
 270         if (drm->client.device.info.chipset >= 0xc0) {
 271                 if (tile_mode & 0xF)
 272                         return -EINVAL;
 273                 tile_mode >>= 4;
 274         }
 275
 276         if (tile_mode & 0xFFFFFFF0)
 277                 return -EINVAL;
 278
 279         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI)
 280                 gob_size = 256;
 281         else
 282                 gob_size = 512;
 283
 284         bw = nouveau_get_width_in_blocks(stride);
 285         bh = nouveau_get_height_in_blocks(drm, h, tile_mode);
 286
 287         bl_size = bw * bh * (1 << tile_mode) * gob_size;
 288
 289         DRM_DEBUG_KMS("offset=%u stride=%u h=%u tile_mode=0x%02x bw=%u bh=%u gob_size=%u bl_size=%llu size=%zu\n",
 290                       offset, stride, h, tile_mode, bw, bh, gob_size, bl_size,
 291                       nvbo->bo.base.size);
 292
 293         if (bl_size + offset > nvbo->bo.base.size)
 294                 return -ERANGE;
 295
 296         return 0;
 297 }
 298
 299 int
 300 nouveau_framebuffer_new(struct drm_device *dev,
 301                         const struct drm_mode_fb_cmd2 *mode_cmd,
 302                         struct drm_gem_object *gem,
 303                         struct drm_framebuffer **pfb)
 304 {
 305         struct nouveau_drm *drm = nouveau_drm(dev);
 306         struct nouveau_bo *nvbo = nouveau_gem_object(gem);
 307         struct drm_framebuffer *fb;
 308         const struct drm_format_info *info;
 309         unsigned int width, height, i;
 310         uint32_t tile_mode;
 311         uint8_t kind;
 312         int ret;
 313
 314         /* YUV overlays have special requirements pre-NV50 */
 315         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
 316
 317             (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
 318              mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
 319              mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
 320              mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
 321             (mode_cmd->pitches[0] & 0x3f || /* align 64 */
 322              mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
 323              (mode_cmd->pitches[1] && /* pitches for planes must match */
 324               mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
 325                 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %p4cc; pitches: 0x%x\n 0x%x\n",
 326                               &mode_cmd->pixel_format,
 327                               mode_cmd->pitches[0], mode_cmd->pitches[1]);
 328                 return -EINVAL;
 329         }
 330
 331         if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
 332                 if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
 333                                                 &tile_mode, &kind)) {
 334                         DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
 335                                       mode_cmd->modifier[0]);
 336                         return -EINVAL;
 337                 }
 338         } else {
 339                 tile_mode = nvbo->mode;
 340                 kind = nvbo->kind;
 341         }
 342
 343         info = drm_get_format_info(dev, mode_cmd);
 344
 345         for (i = 0; i < info->num_planes; i++) {
 346                 width = drm_format_info_plane_width(info,
 347                                                     mode_cmd->width,
 348                                                     i);
 349                 height = drm_format_info_plane_height(info,
 350                                                       mode_cmd->height,
 351                                                       i);
 352
 353                 if (kind) {
 354                         ret = nouveau_check_bl_size(drm, nvbo,
 355                                                     mode_cmd->offsets[i],
 356                                                     mode_cmd->pitches[i],
 357                                                     height, tile_mode);
 358                         if (ret)
 359                                 return ret;
 360                 } else {
 361                         uint32_t size = mode_cmd->pitches[i] * height;
 362
 363                         if (size + mode_cmd->offsets[i] > nvbo->bo.base.size)
 364                                 return -ERANGE;
 365                 }
 366         }
 367
 368         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 369                 return -ENOMEM;
 370
 371         drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
 372         fb->obj[0] = gem;
 373
 374         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 375         if (ret)
 376                 kfree(fb);
 377         return ret;
 378 }
 379
 380 struct drm_framebuffer *
 381 nouveau_user_framebuffer_create(struct drm_device *dev,
 382                                 struct drm_file *file_priv,
 383                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 384 {
 385         struct drm_framebuffer *fb;
 386         struct drm_gem_object *gem;
 387         int ret;
 388
 389         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 390         if (!gem)
 391                 return ERR_PTR(-ENOENT);
 392
 393         ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 394         if (ret == 0)
 395                 return fb;
 396
 397         drm_gem_object_put(gem);
 398         return ERR_PTR(ret);
 399 }
 400
 401 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 402         .fb_create = nouveau_user_framebuffer_create,
 403         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 404 };
 405
 406
 407 struct nouveau_drm_prop_enum_list {
 408         u8 gen_mask;
 409         int type;
 410         char *name;
 411 };
 412
 413 static struct nouveau_drm_prop_enum_list underscan[] = {
 414         { 6, UNDERSCAN_AUTO, "auto" },
 415         { 6, UNDERSCAN_OFF, "off" },
 416         { 6, UNDERSCAN_ON, "on" },
 417         {}
 418 };
 419
 420 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 421         { 7, DITHERING_MODE_AUTO, "auto" },
 422         { 7, DITHERING_MODE_OFF, "off" },
 423         { 1, DITHERING_MODE_ON, "on" },
 424         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 425         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 426         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 427         {}
 428 };
 429
 430 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 431         { 6, DITHERING_DEPTH_AUTO, "auto" },
 432         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 433         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 434         {}
 435 };
 436
 437 #define PROP_ENUM(p,gen,n,list) do {                                           \
 438         struct nouveau_drm_prop_enum_list *l = (list);                         \
 439         int c = 0;                                                             \
 440         while (l->gen_mask) {                                                  \
 441                 if (l->gen_mask & (1 << (gen)))                                \
 442                         c++;                                                   \
 443                 l++;                                                           \
 444         }                                                                      \
 445         if (c) {                                                               \
 446                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 447                 l = (list);                                                    \
 448                 while (p && l->gen_mask) {                                     \
 449                         if (l->gen_mask & (1 << (gen))) {                      \
 450                                 drm_property_add_enum(p, l->type, l->name);    \
 451                         }                                                      \
 452                         l++;                                                   \
 453                 }                                                              \
 454         }                                                                      \
 455 } while(0)
 456
 457 void
 458 nouveau_display_hpd_resume(struct drm_device *dev)
 459 {
 460         struct nouveau_drm *drm = nouveau_drm(dev);
 461
 462         mutex_lock(&drm->hpd_lock);
 463         drm->hpd_pending = ~0;
 464         mutex_unlock(&drm->hpd_lock);
 465
 466         schedule_work(&drm->hpd_work);
 467 }
 468
 469 static void
 470 nouveau_display_hpd_work(struct work_struct *work)
 471 {
 472         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 473         struct drm_device *dev = drm->dev;
 474         struct drm_connector *connector;
 475         struct drm_connector_list_iter conn_iter;
 476         u32 pending;
 477         bool changed = false;
 478
 479         pm_runtime_get_sync(dev->dev);
 480
 481         mutex_lock(&drm->hpd_lock);
 482         pending = drm->hpd_pending;
 483         drm->hpd_pending = 0;
 484         mutex_unlock(&drm->hpd_lock);
 485
 486         /* Nothing to do, exit early without updating the last busy counter */
 487         if (!pending)
 488                 goto noop;
 489
 490         mutex_lock(&dev->mode_config.mutex);
 491         drm_connector_list_iter_begin(dev, &conn_iter);
 492
 493         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 494                 enum drm_connector_status old_status = connector->status;
 495                 u64 old_epoch_counter = connector->epoch_counter;
 496
 497                 if (!(pending & drm_connector_mask(connector)))
 498                         continue;
 499
 500                 connector->status = drm_helper_probe_detect(connector, NULL,
 501                                                             false);
 502                 if (old_epoch_counter == connector->epoch_counter)
 503                         continue;
 504
 505                 changed = true;
 506                 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
 507                             connector->base.id, connector->name,
 508                             drm_get_connector_status_name(old_status),
 509                             drm_get_connector_status_name(connector->status),
 510                             old_epoch_counter, connector->epoch_counter);
 511         }
 512
 513         drm_connector_list_iter_end(&conn_iter);
 514         mutex_unlock(&dev->mode_config.mutex);
 515
 516         if (changed)
 517                 drm_kms_helper_hotplug_event(dev);
 518
 519         pm_runtime_mark_last_busy(drm->dev->dev);
 520 noop:
 521         pm_runtime_put_sync(drm->dev->dev);
 522 }
 523
 524 #ifdef CONFIG_ACPI
 525
 526 static int
 527 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 528                           void *data)
 529 {
 530         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 531         struct acpi_bus_event *info = data;
 532         int ret;
 533
 534         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 535                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 536                         ret = pm_runtime_get(drm->dev->dev);
 537                         if (ret == 1 || ret == -EACCES) {
 538                                 /* If the GPU is already awake, or in a state
 539                                  * where we can't wake it up, it can handle
 540                                  * it's own hotplug events.
 541                                  */
 542                                 pm_runtime_put_autosuspend(drm->dev->dev);
 543                         } else if (ret == 0) {
 544                                 /* We've started resuming the GPU already, so
 545                                  * it will handle scheduling a full reprobe
 546                                  * itself
 547                                  */
 548                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 549                                 pm_runtime_put_noidle(drm->dev->dev);
 550                         } else {
 551                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 552                                         ret);
 553                         }
 554
 555                         /* acpi-video should not generate keypresses for this */
 556                         return NOTIFY_BAD;
 557                 }
 558         }
 559
 560         return NOTIFY_DONE;
 561 }
 562 #endif
 563
 564 int
 565 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
 566 {
 567         struct nouveau_display *disp = nouveau_display(dev);
 568         struct drm_connector *connector;
 569         struct drm_connector_list_iter conn_iter;
 570         int ret;
 571
 572         /*
 573          * Enable hotplug interrupts (done as early as possible, since we need
 574          * them for MST)
 575          */
 576         drm_connector_list_iter_begin(dev, &conn_iter);
 577         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 578                 struct nouveau_connector *conn = nouveau_connector(connector);
 579                 nvif_notify_get(&conn->hpd);
 580         }
 581         drm_connector_list_iter_end(&conn_iter);
 582
 583         ret = disp->init(dev, resume, runtime);
 584         if (ret)
 585                 return ret;
 586
 587         /* enable connector detection and polling for connectors without HPD
 588          * support
 589          */
 590         drm_kms_helper_poll_enable(dev);
 591
 592         return ret;
 593 }
 594
 595 void
 596 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 597 {
 598         struct nouveau_display *disp = nouveau_display(dev);
 599         struct nouveau_drm *drm = nouveau_drm(dev);
 600         struct drm_connector *connector;
 601         struct drm_connector_list_iter conn_iter;
 602
 603         if (!suspend) {
 604                 if (drm_drv_uses_atomic_modeset(dev))
 605                         drm_atomic_helper_shutdown(dev);
 606                 else
 607                         drm_helper_force_disable_all(dev);
 608         }
 609
 610         /* disable hotplug interrupts */
 611         drm_connector_list_iter_begin(dev, &conn_iter);
 612         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 613                 struct nouveau_connector *conn = nouveau_connector(connector);
 614                 nvif_notify_put(&conn->hpd);
 615         }
 616         drm_connector_list_iter_end(&conn_iter);
 617
 618         if (!runtime)
 619                 cancel_work_sync(&drm->hpd_work);
 620
 621         drm_kms_helper_poll_disable(dev);
 622         disp->fini(dev, runtime, suspend);
 623 }
 624
 625 static void
 626 nouveau_display_create_properties(struct drm_device *dev)
 627 {
 628         struct nouveau_display *disp = nouveau_display(dev);
 629         int gen;
 630
 631         if (disp->disp.object.oclass < NV50_DISP)
 632                 gen = 0;
 633         else
 634         if (disp->disp.object.oclass < GF110_DISP)
 635                 gen = 1;
 636         else
 637                 gen = 2;
 638
 639         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 640         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 641         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 642
 643         disp->underscan_hborder_property =
 644                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 645
 646         disp->underscan_vborder_property =
 647                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 648
 649         if (gen < 1)
 650                 return;
 651
 652         /* -90..+90 */
 653         disp->vibrant_hue_property =
 654                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 655
 656         /* -100..+100 */
 657         disp->color_vibrance_property =
 658                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 659 }
 660
 661 int
 662 nouveau_display_create(struct drm_device *dev)
 663 {
 664         struct nouveau_drm *drm = nouveau_drm(dev);
 665         struct nvkm_device *device = nvxx_device(&drm->client.device);
 666         struct nouveau_display *disp;
 667         int ret;
 668
 669         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 670         if (!disp)
 671                 return -ENOMEM;
 672
 673         drm_mode_config_init(dev);
 674         drm_mode_create_scaling_mode_property(dev);
 675         drm_mode_create_dvi_i_properties(dev);
 676
 677         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 678         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 679
 680         dev->mode_config.min_width = 0;
 681         dev->mode_config.min_height = 0;
 682         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 683                 dev->mode_config.max_width = 2048;
 684                 dev->mode_config.max_height = 2048;
 685         } else
 686         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 687                 dev->mode_config.max_width = 4096;
 688                 dev->mode_config.max_height = 4096;
 689         } else
 690         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 691                 dev->mode_config.max_width = 8192;
 692                 dev->mode_config.max_height = 8192;
 693         } else {
 694                 dev->mode_config.max_width = 16384;
 695                 dev->mode_config.max_height = 16384;
 696         }
 697
 698         dev->mode_config.preferred_depth = 24;
 699         dev->mode_config.prefer_shadow = 1;
 700
 701         if (drm->client.device.info.chipset < 0x11)
 702                 dev->mode_config.async_page_flip = false;
 703         else
 704                 dev->mode_config.async_page_flip = true;
 705
 706         drm_kms_helper_poll_init(dev);
 707         drm_kms_helper_poll_disable(dev);
 708
 709         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 710                 ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0,
 711                                      &disp->disp);
 712                 if (ret == 0) {
 713                         nouveau_display_create_properties(dev);
 714                         if (disp->disp.object.oclass < NV50_DISP)
 715                                 ret = nv04_display_create(dev);
 716                         else
 717                                 ret = nv50_display_create(dev);
 718                 }
 719         } else {
 720                 ret = 0;
 721         }
 722
 723         if (ret)
 724                 goto disp_create_err;
 725
 726         drm_mode_config_reset(dev);
 727
 728         if (dev->mode_config.num_crtc) {
 729                 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 730                 if (ret)
 731                         goto vblank_err;
 732
 733                 if (disp->disp.object.oclass >= NV50_DISP)
 734                         nv50_crc_init(dev);
 735         }
 736
 737         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 738         mutex_init(&drm->hpd_lock);
 739 #ifdef CONFIG_ACPI
 740         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 741         register_acpi_notifier(&drm->acpi_nb);
 742 #endif
 743
 744         return 0;
 745
 746 vblank_err:
 747         disp->dtor(dev);
 748 disp_create_err:
 749         drm_kms_helper_poll_fini(dev);
 750         drm_mode_config_cleanup(dev);
 751         return ret;
 752 }
 753
 754 void
 755 nouveau_display_destroy(struct drm_device *dev)
 756 {
 757         struct nouveau_display *disp = nouveau_display(dev);
 758         struct nouveau_drm *drm = nouveau_drm(dev);
 759
 760 #ifdef CONFIG_ACPI
 761         unregister_acpi_notifier(&drm->acpi_nb);
 762 #endif
 763
 764         drm_kms_helper_poll_fini(dev);
 765         drm_mode_config_cleanup(dev);
 766
 767         if (disp->dtor)
 768                 disp->dtor(dev);
 769
 770         nvif_disp_dtor(&disp->disp);
 771
 772         nouveau_drm(dev)->display = NULL;
 773         mutex_destroy(&drm->hpd_lock);
 774         kfree(disp);
 775 }
 776
 777 int
 778 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 779 {
 780         struct nouveau_display *disp = nouveau_display(dev);
 781
 782         if (drm_drv_uses_atomic_modeset(dev)) {
 783                 if (!runtime) {
 784                         disp->suspend = drm_atomic_helper_suspend(dev);
 785                         if (IS_ERR(disp->suspend)) {
 786                                 int ret = PTR_ERR(disp->suspend);
 787                                 disp->suspend = NULL;
 788                                 return ret;
 789                         }
 790                 }
 791         }
 792
 793         nouveau_display_fini(dev, true, runtime);
 794         return 0;
 795 }
 796
 797 void
 798 nouveau_display_resume(struct drm_device *dev, bool runtime)
 799 {
 800         struct nouveau_display *disp = nouveau_display(dev);
 801
 802         nouveau_display_init(dev, true, runtime);
 803
 804         if (drm_drv_uses_atomic_modeset(dev)) {
 805                 if (disp->suspend) {
 806                         drm_atomic_helper_resume(dev, disp->suspend);
 807                         disp->suspend = NULL;
 808                 }
 809                 return;
 810         }
 811 }
 812
 813 int
 814 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 815                             struct drm_mode_create_dumb *args)
 816 {
 817         struct nouveau_cli *cli = nouveau_cli(file_priv);
 818         struct nouveau_bo *bo;
 819         uint32_t domain;
 820         int ret;
 821
 822         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 823         args->size = args->pitch * args->height;
 824         args->size = roundup(args->size, PAGE_SIZE);
 825
 826         /* Use VRAM if there is any ; otherwise fallback to system memory */
 827         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 828                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 829         else
 830                 domain = NOUVEAU_GEM_DOMAIN_GART;
 831
 832         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 833         if (ret)
 834                 return ret;
 835
 836         ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
 837         drm_gem_object_put(&bo->bo.base);
 838         return ret;
 839 }