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