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=%lu\n",
 290                       offset, stride, h, tile_mode, bw, bh, gob_size, bl_size,
 291                       nvbo->bo.mem.size);
 292
 293         if (bl_size + offset > nvbo->bo.mem.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                 struct drm_format_name_buf format_name;
 326                 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
 327                               drm_get_format_name(mode_cmd->pixel_format,
 328                                                   &format_name),
 329                               mode_cmd->pitches[0],
 330                               mode_cmd->pitches[1]);
 331                 return -EINVAL;
 332         }
 333
 334         if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
 335                 if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
 336                                                 &tile_mode, &kind)) {
 337                         DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
 338                                       mode_cmd->modifier[0]);
 339                         return -EINVAL;
 340                 }
 341         } else {
 342                 tile_mode = nvbo->mode;
 343                 kind = nvbo->kind;
 344         }
 345
 346         info = drm_get_format_info(dev, mode_cmd);
 347
 348         for (i = 0; i < info->num_planes; i++) {
 349                 width = drm_format_info_plane_width(info,
 350                                                     mode_cmd->width,
 351                                                     i);
 352                 height = drm_format_info_plane_height(info,
 353                                                       mode_cmd->height,
 354                                                       i);
 355
 356                 if (kind) {
 357                         ret = nouveau_check_bl_size(drm, nvbo,
 358                                                     mode_cmd->offsets[i],
 359                                                     mode_cmd->pitches[i],
 360                                                     height, tile_mode);
 361                         if (ret)
 362                                 return ret;
 363                 } else {
 364                         uint32_t size = mode_cmd->pitches[i] * height;
 365
 366                         if (size + mode_cmd->offsets[i] > nvbo->bo.mem.size)
 367                                 return -ERANGE;
 368                 }
 369         }
 370
 371         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
 372                 return -ENOMEM;
 373
 374         drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
 375         fb->obj[0] = gem;
 376
 377         ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
 378         if (ret)
 379                 kfree(fb);
 380         return ret;
 381 }
 382
 383 struct drm_framebuffer *
 384 nouveau_user_framebuffer_create(struct drm_device *dev,
 385                                 struct drm_file *file_priv,
 386                                 const struct drm_mode_fb_cmd2 *mode_cmd)
 387 {
 388         struct drm_framebuffer *fb;
 389         struct drm_gem_object *gem;
 390         int ret;
 391
 392         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
 393         if (!gem)
 394                 return ERR_PTR(-ENOENT);
 395
 396         ret = nouveau_framebuffer_new(dev, mode_cmd, gem, &fb);
 397         if (ret == 0)
 398                 return fb;
 399
 400         drm_gem_object_put(gem);
 401         return ERR_PTR(ret);
 402 }
 403
 404 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 405         .fb_create = nouveau_user_framebuffer_create,
 406         .output_poll_changed = nouveau_fbcon_output_poll_changed,
 407 };
 408
 409
 410 struct nouveau_drm_prop_enum_list {
 411         u8 gen_mask;
 412         int type;
 413         char *name;
 414 };
 415
 416 static struct nouveau_drm_prop_enum_list underscan[] = {
 417         { 6, UNDERSCAN_AUTO, "auto" },
 418         { 6, UNDERSCAN_OFF, "off" },
 419         { 6, UNDERSCAN_ON, "on" },
 420         {}
 421 };
 422
 423 static struct nouveau_drm_prop_enum_list dither_mode[] = {
 424         { 7, DITHERING_MODE_AUTO, "auto" },
 425         { 7, DITHERING_MODE_OFF, "off" },
 426         { 1, DITHERING_MODE_ON, "on" },
 427         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
 428         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
 429         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
 430         {}
 431 };
 432
 433 static struct nouveau_drm_prop_enum_list dither_depth[] = {
 434         { 6, DITHERING_DEPTH_AUTO, "auto" },
 435         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
 436         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
 437         {}
 438 };
 439
 440 #define PROP_ENUM(p,gen,n,list) do {                                           \
 441         struct nouveau_drm_prop_enum_list *l = (list);                         \
 442         int c = 0;                                                             \
 443         while (l->gen_mask) {                                                  \
 444                 if (l->gen_mask & (1 << (gen)))                                \
 445                         c++;                                                   \
 446                 l++;                                                           \
 447         }                                                                      \
 448         if (c) {                                                               \
 449                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
 450                 l = (list);                                                    \
 451                 while (p && l->gen_mask) {                                     \
 452                         if (l->gen_mask & (1 << (gen))) {                      \
 453                                 drm_property_add_enum(p, l->type, l->name);    \
 454                         }                                                      \
 455                         l++;                                                   \
 456                 }                                                              \
 457         }                                                                      \
 458 } while(0)
 459
 460 void
 461 nouveau_display_hpd_resume(struct drm_device *dev)
 462 {
 463         struct nouveau_drm *drm = nouveau_drm(dev);
 464
 465         mutex_lock(&drm->hpd_lock);
 466         drm->hpd_pending = ~0;
 467         mutex_unlock(&drm->hpd_lock);
 468
 469         schedule_work(&drm->hpd_work);
 470 }
 471
 472 static void
 473 nouveau_display_hpd_work(struct work_struct *work)
 474 {
 475         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 476         struct drm_device *dev = drm->dev;
 477         struct drm_connector *connector;
 478         struct drm_connector_list_iter conn_iter;
 479         u32 pending;
 480         bool changed = false;
 481
 482         pm_runtime_get_sync(dev->dev);
 483
 484         mutex_lock(&drm->hpd_lock);
 485         pending = drm->hpd_pending;
 486         drm->hpd_pending = 0;
 487         mutex_unlock(&drm->hpd_lock);
 488
 489         /* Nothing to do, exit early without updating the last busy counter */
 490         if (!pending)
 491                 goto noop;
 492
 493         mutex_lock(&dev->mode_config.mutex);
 494         drm_connector_list_iter_begin(dev, &conn_iter);
 495
 496         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 497                 enum drm_connector_status old_status = connector->status;
 498                 u64 old_epoch_counter = connector->epoch_counter;
 499
 500                 if (!(pending & drm_connector_mask(connector)))
 501                         continue;
 502
 503                 connector->status = drm_helper_probe_detect(connector, NULL,
 504                                                             false);
 505                 if (old_epoch_counter == connector->epoch_counter)
 506                         continue;
 507
 508                 changed = true;
 509                 drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
 510                             connector->base.id, connector->name,
 511                             drm_get_connector_status_name(old_status),
 512                             drm_get_connector_status_name(connector->status),
 513                             old_epoch_counter, connector->epoch_counter);
 514         }
 515
 516         drm_connector_list_iter_end(&conn_iter);
 517         mutex_unlock(&dev->mode_config.mutex);
 518
 519         if (changed)
 520                 drm_kms_helper_hotplug_event(dev);
 521
 522         pm_runtime_mark_last_busy(drm->dev->dev);
 523 noop:
 524         pm_runtime_put_sync(drm->dev->dev);
 525 }
 526
 527 #ifdef CONFIG_ACPI
 528
 529 static int
 530 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 531                           void *data)
 532 {
 533         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 534         struct acpi_bus_event *info = data;
 535         int ret;
 536
 537         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 538                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 539                         ret = pm_runtime_get(drm->dev->dev);
 540                         if (ret == 1 || ret == -EACCES) {
 541                                 /* If the GPU is already awake, or in a state
 542                                  * where we can't wake it up, it can handle
 543                                  * it's own hotplug events.
 544                                  */
 545                                 pm_runtime_put_autosuspend(drm->dev->dev);
 546                         } else if (ret == 0) {
 547                                 /* We've started resuming the GPU already, so
 548                                  * it will handle scheduling a full reprobe
 549                                  * itself
 550                                  */
 551                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 552                                 pm_runtime_put_noidle(drm->dev->dev);
 553                         } else {
 554                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 555                                         ret);
 556                         }
 557
 558                         /* acpi-video should not generate keypresses for this */
 559                         return NOTIFY_BAD;
 560                 }
 561         }
 562
 563         return NOTIFY_DONE;
 564 }
 565 #endif
 566
 567 int
 568 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
 569 {
 570         struct nouveau_display *disp = nouveau_display(dev);
 571         struct drm_connector *connector;
 572         struct drm_connector_list_iter conn_iter;
 573         int ret;
 574
 575         /*
 576          * Enable hotplug interrupts (done as early as possible, since we need
 577          * them for MST)
 578          */
 579         drm_connector_list_iter_begin(dev, &conn_iter);
 580         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 581                 struct nouveau_connector *conn = nouveau_connector(connector);
 582                 nvif_notify_get(&conn->hpd);
 583         }
 584         drm_connector_list_iter_end(&conn_iter);
 585
 586         ret = disp->init(dev, resume, runtime);
 587         if (ret)
 588                 return ret;
 589
 590         /* enable connector detection and polling for connectors without HPD
 591          * support
 592          */
 593         drm_kms_helper_poll_enable(dev);
 594
 595         return ret;
 596 }
 597
 598 void
 599 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 600 {
 601         struct nouveau_display *disp = nouveau_display(dev);
 602         struct nouveau_drm *drm = nouveau_drm(dev);
 603         struct drm_connector *connector;
 604         struct drm_connector_list_iter conn_iter;
 605
 606         if (!suspend) {
 607                 if (drm_drv_uses_atomic_modeset(dev))
 608                         drm_atomic_helper_shutdown(dev);
 609                 else
 610                         drm_helper_force_disable_all(dev);
 611         }
 612
 613         /* disable hotplug interrupts */
 614         drm_connector_list_iter_begin(dev, &conn_iter);
 615         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 616                 struct nouveau_connector *conn = nouveau_connector(connector);
 617                 nvif_notify_put(&conn->hpd);
 618         }
 619         drm_connector_list_iter_end(&conn_iter);
 620
 621         if (!runtime)
 622                 cancel_work_sync(&drm->hpd_work);
 623
 624         drm_kms_helper_poll_disable(dev);
 625         disp->fini(dev, runtime, suspend);
 626 }
 627
 628 static void
 629 nouveau_display_create_properties(struct drm_device *dev)
 630 {
 631         struct nouveau_display *disp = nouveau_display(dev);
 632         int gen;
 633
 634         if (disp->disp.object.oclass < NV50_DISP)
 635                 gen = 0;
 636         else
 637         if (disp->disp.object.oclass < GF110_DISP)
 638                 gen = 1;
 639         else
 640                 gen = 2;
 641
 642         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 643         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 644         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 645
 646         disp->underscan_hborder_property =
 647                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 648
 649         disp->underscan_vborder_property =
 650                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 651
 652         if (gen < 1)
 653                 return;
 654
 655         /* -90..+90 */
 656         disp->vibrant_hue_property =
 657                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 658
 659         /* -100..+100 */
 660         disp->color_vibrance_property =
 661                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 662 }
 663
 664 int
 665 nouveau_display_create(struct drm_device *dev)
 666 {
 667         struct nouveau_drm *drm = nouveau_drm(dev);
 668         struct nvkm_device *device = nvxx_device(&drm->client.device);
 669         struct nouveau_display *disp;
 670         int ret;
 671
 672         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 673         if (!disp)
 674                 return -ENOMEM;
 675
 676         drm_mode_config_init(dev);
 677         drm_mode_create_scaling_mode_property(dev);
 678         drm_mode_create_dvi_i_properties(dev);
 679
 680         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 681         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 682
 683         dev->mode_config.min_width = 0;
 684         dev->mode_config.min_height = 0;
 685         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 686                 dev->mode_config.max_width = 2048;
 687                 dev->mode_config.max_height = 2048;
 688         } else
 689         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 690                 dev->mode_config.max_width = 4096;
 691                 dev->mode_config.max_height = 4096;
 692         } else
 693         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 694                 dev->mode_config.max_width = 8192;
 695                 dev->mode_config.max_height = 8192;
 696         } else {
 697                 dev->mode_config.max_width = 16384;
 698                 dev->mode_config.max_height = 16384;
 699         }
 700
 701         dev->mode_config.preferred_depth = 24;
 702         dev->mode_config.prefer_shadow = 1;
 703         dev->mode_config.allow_fb_modifiers = true;
 704
 705         if (drm->client.device.info.chipset < 0x11)
 706                 dev->mode_config.async_page_flip = false;
 707         else
 708                 dev->mode_config.async_page_flip = true;
 709
 710         drm_kms_helper_poll_init(dev);
 711         drm_kms_helper_poll_disable(dev);
 712
 713         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 714                 ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0,
 715                                      &disp->disp);
 716                 if (ret == 0) {
 717                         nouveau_display_create_properties(dev);
 718                         if (disp->disp.object.oclass < NV50_DISP)
 719                                 ret = nv04_display_create(dev);
 720                         else
 721                                 ret = nv50_display_create(dev);
 722                 }
 723         } else {
 724                 ret = 0;
 725         }
 726
 727         if (ret)
 728                 goto disp_create_err;
 729
 730         drm_mode_config_reset(dev);
 731
 732         if (dev->mode_config.num_crtc) {
 733                 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 734                 if (ret)
 735                         goto vblank_err;
 736
 737                 if (disp->disp.object.oclass >= NV50_DISP)
 738                         nv50_crc_init(dev);
 739         }
 740
 741         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 742         mutex_init(&drm->hpd_lock);
 743 #ifdef CONFIG_ACPI
 744         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 745         register_acpi_notifier(&drm->acpi_nb);
 746 #endif
 747
 748         return 0;
 749
 750 vblank_err:
 751         disp->dtor(dev);
 752 disp_create_err:
 753         drm_kms_helper_poll_fini(dev);
 754         drm_mode_config_cleanup(dev);
 755         return ret;
 756 }
 757
 758 void
 759 nouveau_display_destroy(struct drm_device *dev)
 760 {
 761         struct nouveau_display *disp = nouveau_display(dev);
 762         struct nouveau_drm *drm = nouveau_drm(dev);
 763
 764 #ifdef CONFIG_ACPI
 765         unregister_acpi_notifier(&drm->acpi_nb);
 766 #endif
 767
 768         drm_kms_helper_poll_fini(dev);
 769         drm_mode_config_cleanup(dev);
 770
 771         if (disp->dtor)
 772                 disp->dtor(dev);
 773
 774         nvif_disp_dtor(&disp->disp);
 775
 776         nouveau_drm(dev)->display = NULL;
 777         mutex_destroy(&drm->hpd_lock);
 778         kfree(disp);
 779 }
 780
 781 int
 782 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 783 {
 784         struct nouveau_display *disp = nouveau_display(dev);
 785
 786         if (drm_drv_uses_atomic_modeset(dev)) {
 787                 if (!runtime) {
 788                         disp->suspend = drm_atomic_helper_suspend(dev);
 789                         if (IS_ERR(disp->suspend)) {
 790                                 int ret = PTR_ERR(disp->suspend);
 791                                 disp->suspend = NULL;
 792                                 return ret;
 793                         }
 794                 }
 795         }
 796
 797         nouveau_display_fini(dev, true, runtime);
 798         return 0;
 799 }
 800
 801 void
 802 nouveau_display_resume(struct drm_device *dev, bool runtime)
 803 {
 804         struct nouveau_display *disp = nouveau_display(dev);
 805
 806         nouveau_display_init(dev, true, runtime);
 807
 808         if (drm_drv_uses_atomic_modeset(dev)) {
 809                 if (disp->suspend) {
 810                         drm_atomic_helper_resume(dev, disp->suspend);
 811                         disp->suspend = NULL;
 812                 }
 813                 return;
 814         }
 815 }
 816
 817 int
 818 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 819                             struct drm_mode_create_dumb *args)
 820 {
 821         struct nouveau_cli *cli = nouveau_cli(file_priv);
 822         struct nouveau_bo *bo;
 823         uint32_t domain;
 824         int ret;
 825
 826         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 827         args->size = args->pitch * args->height;
 828         args->size = roundup(args->size, PAGE_SIZE);
 829
 830         /* Use VRAM if there is any ; otherwise fallback to system memory */
 831         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 832                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 833         else
 834                 domain = NOUVEAU_GEM_DOMAIN_GART;
 835
 836         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 837         if (ret)
 838                 return ret;
 839
 840         ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
 841         drm_gem_object_put(&bo->bo.base);
 842         return ret;
 843 }
 844
 845 int
 846 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 847                                 struct drm_device *dev,
 848                                 uint32_t handle, uint64_t *poffset)
 849 {
 850         struct drm_gem_object *gem;
 851
 852         gem = drm_gem_object_lookup(file_priv, handle);
 853         if (gem) {
 854                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 855                 *poffset = drm_vma_node_offset_addr(&bo->bo.base.vma_node);
 856                 drm_gem_object_put(gem);
 857                 return 0;
 858         }
 859
 860         return -ENOENT;
 861 }