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 static void
 461 nouveau_display_hpd_work(struct work_struct *work)
 462 {
 463         struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
 464
 465         pm_runtime_get_sync(drm->dev->dev);
 466
 467         drm_helper_hpd_irq_event(drm->dev);
 468
 469         pm_runtime_mark_last_busy(drm->dev->dev);
 470         pm_runtime_put_sync(drm->dev->dev);
 471 }
 472
 473 #ifdef CONFIG_ACPI
 474
 475 static int
 476 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 477                           void *data)
 478 {
 479         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 480         struct acpi_bus_event *info = data;
 481         int ret;
 482
 483         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 484                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
 485                         ret = pm_runtime_get(drm->dev->dev);
 486                         if (ret == 1 || ret == -EACCES) {
 487                                 /* If the GPU is already awake, or in a state
 488                                  * where we can't wake it up, it can handle
 489                                  * it's own hotplug events.
 490                                  */
 491                                 pm_runtime_put_autosuspend(drm->dev->dev);
 492                         } else if (ret == 0) {
 493                                 /* This may be the only indication we receive
 494                                  * of a connector hotplug on a runtime
 495                                  * suspended GPU, schedule hpd_work to check.
 496                                  */
 497                                 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
 498                                 schedule_work(&drm->hpd_work);
 499                                 pm_runtime_put_noidle(drm->dev->dev);
 500                         } else {
 501                                 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
 502                                         ret);
 503                         }
 504
 505                         /* acpi-video should not generate keypresses for this */
 506                         return NOTIFY_BAD;
 507                 }
 508         }
 509
 510         return NOTIFY_DONE;
 511 }
 512 #endif
 513
 514 int
 515 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
 516 {
 517         struct nouveau_display *disp = nouveau_display(dev);
 518         struct drm_connector *connector;
 519         struct drm_connector_list_iter conn_iter;
 520         int ret;
 521
 522         /*
 523          * Enable hotplug interrupts (done as early as possible, since we need
 524          * them for MST)
 525          */
 526         drm_connector_list_iter_begin(dev, &conn_iter);
 527         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 528                 struct nouveau_connector *conn = nouveau_connector(connector);
 529                 nvif_notify_get(&conn->hpd);
 530         }
 531         drm_connector_list_iter_end(&conn_iter);
 532
 533         ret = disp->init(dev, resume, runtime);
 534         if (ret)
 535                 return ret;
 536
 537         /* enable connector detection and polling for connectors without HPD
 538          * support
 539          */
 540         drm_kms_helper_poll_enable(dev);
 541
 542         return ret;
 543 }
 544
 545 void
 546 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 547 {
 548         struct nouveau_display *disp = nouveau_display(dev);
 549         struct nouveau_drm *drm = nouveau_drm(dev);
 550         struct drm_connector *connector;
 551         struct drm_connector_list_iter conn_iter;
 552
 553         if (!suspend) {
 554                 if (drm_drv_uses_atomic_modeset(dev))
 555                         drm_atomic_helper_shutdown(dev);
 556                 else
 557                         drm_helper_force_disable_all(dev);
 558         }
 559
 560         /* disable hotplug interrupts */
 561         drm_connector_list_iter_begin(dev, &conn_iter);
 562         nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 563                 struct nouveau_connector *conn = nouveau_connector(connector);
 564                 nvif_notify_put(&conn->hpd);
 565         }
 566         drm_connector_list_iter_end(&conn_iter);
 567
 568         if (!runtime)
 569                 cancel_work_sync(&drm->hpd_work);
 570
 571         drm_kms_helper_poll_disable(dev);
 572         disp->fini(dev, suspend);
 573 }
 574
 575 static void
 576 nouveau_display_create_properties(struct drm_device *dev)
 577 {
 578         struct nouveau_display *disp = nouveau_display(dev);
 579         int gen;
 580
 581         if (disp->disp.object.oclass < NV50_DISP)
 582                 gen = 0;
 583         else
 584         if (disp->disp.object.oclass < GF110_DISP)
 585                 gen = 1;
 586         else
 587                 gen = 2;
 588
 589         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
 590         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
 591         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
 592
 593         disp->underscan_hborder_property =
 594                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
 595
 596         disp->underscan_vborder_property =
 597                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
 598
 599         if (gen < 1)
 600                 return;
 601
 602         /* -90..+90 */
 603         disp->vibrant_hue_property =
 604                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
 605
 606         /* -100..+100 */
 607         disp->color_vibrance_property =
 608                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
 609 }
 610
 611 int
 612 nouveau_display_create(struct drm_device *dev)
 613 {
 614         struct nouveau_drm *drm = nouveau_drm(dev);
 615         struct nvkm_device *device = nvxx_device(&drm->client.device);
 616         struct nouveau_display *disp;
 617         int ret;
 618
 619         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
 620         if (!disp)
 621                 return -ENOMEM;
 622
 623         drm_mode_config_init(dev);
 624         drm_mode_create_scaling_mode_property(dev);
 625         drm_mode_create_dvi_i_properties(dev);
 626
 627         dev->mode_config.funcs = &nouveau_mode_config_funcs;
 628         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
 629
 630         dev->mode_config.min_width = 0;
 631         dev->mode_config.min_height = 0;
 632         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
 633                 dev->mode_config.max_width = 2048;
 634                 dev->mode_config.max_height = 2048;
 635         } else
 636         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
 637                 dev->mode_config.max_width = 4096;
 638                 dev->mode_config.max_height = 4096;
 639         } else
 640         if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
 641                 dev->mode_config.max_width = 8192;
 642                 dev->mode_config.max_height = 8192;
 643         } else {
 644                 dev->mode_config.max_width = 16384;
 645                 dev->mode_config.max_height = 16384;
 646         }
 647
 648         dev->mode_config.preferred_depth = 24;
 649         dev->mode_config.prefer_shadow = 1;
 650         dev->mode_config.allow_fb_modifiers = true;
 651
 652         if (drm->client.device.info.chipset < 0x11)
 653                 dev->mode_config.async_page_flip = false;
 654         else
 655                 dev->mode_config.async_page_flip = true;
 656
 657         drm_kms_helper_poll_init(dev);
 658         drm_kms_helper_poll_disable(dev);
 659
 660         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
 661                 ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0,
 662                                      &disp->disp);
 663                 if (ret == 0) {
 664                         nouveau_display_create_properties(dev);
 665                         if (disp->disp.object.oclass < NV50_DISP)
 666                                 ret = nv04_display_create(dev);
 667                         else
 668                                 ret = nv50_display_create(dev);
 669                 }
 670         } else {
 671                 ret = 0;
 672         }
 673
 674         if (ret)
 675                 goto disp_create_err;
 676
 677         drm_mode_config_reset(dev);
 678
 679         if (dev->mode_config.num_crtc) {
 680                 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
 681                 if (ret)
 682                         goto vblank_err;
 683
 684                 if (disp->disp.object.oclass >= NV50_DISP)
 685                         nv50_crc_init(dev);
 686         }
 687
 688         INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
 689 #ifdef CONFIG_ACPI
 690         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
 691         register_acpi_notifier(&drm->acpi_nb);
 692 #endif
 693
 694         return 0;
 695
 696 vblank_err:
 697         disp->dtor(dev);
 698 disp_create_err:
 699         drm_kms_helper_poll_fini(dev);
 700         drm_mode_config_cleanup(dev);
 701         return ret;
 702 }
 703
 704 void
 705 nouveau_display_destroy(struct drm_device *dev)
 706 {
 707         struct nouveau_display *disp = nouveau_display(dev);
 708
 709 #ifdef CONFIG_ACPI
 710         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
 711 #endif
 712
 713         drm_kms_helper_poll_fini(dev);
 714         drm_mode_config_cleanup(dev);
 715
 716         if (disp->dtor)
 717                 disp->dtor(dev);
 718
 719         nvif_disp_dtor(&disp->disp);
 720
 721         nouveau_drm(dev)->display = NULL;
 722         kfree(disp);
 723 }
 724
 725 int
 726 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 727 {
 728         struct nouveau_display *disp = nouveau_display(dev);
 729
 730         if (drm_drv_uses_atomic_modeset(dev)) {
 731                 if (!runtime) {
 732                         disp->suspend = drm_atomic_helper_suspend(dev);
 733                         if (IS_ERR(disp->suspend)) {
 734                                 int ret = PTR_ERR(disp->suspend);
 735                                 disp->suspend = NULL;
 736                                 return ret;
 737                         }
 738                 }
 739         }
 740
 741         nouveau_display_fini(dev, true, runtime);
 742         return 0;
 743 }
 744
 745 void
 746 nouveau_display_resume(struct drm_device *dev, bool runtime)
 747 {
 748         struct nouveau_display *disp = nouveau_display(dev);
 749
 750         nouveau_display_init(dev, true, runtime);
 751
 752         if (drm_drv_uses_atomic_modeset(dev)) {
 753                 if (disp->suspend) {
 754                         drm_atomic_helper_resume(dev, disp->suspend);
 755                         disp->suspend = NULL;
 756                 }
 757                 return;
 758         }
 759 }
 760
 761 int
 762 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 763                             struct drm_mode_create_dumb *args)
 764 {
 765         struct nouveau_cli *cli = nouveau_cli(file_priv);
 766         struct nouveau_bo *bo;
 767         uint32_t domain;
 768         int ret;
 769
 770         args->pitch = roundup(args->width * (args->bpp / 8), 256);
 771         args->size = args->pitch * args->height;
 772         args->size = roundup(args->size, PAGE_SIZE);
 773
 774         /* Use VRAM if there is any ; otherwise fallback to system memory */
 775         if (nouveau_drm(dev)->client.device.info.ram_size != 0)
 776                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
 777         else
 778                 domain = NOUVEAU_GEM_DOMAIN_GART;
 779
 780         ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
 781         if (ret)
 782                 return ret;
 783
 784         ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
 785         drm_gem_object_put(&bo->bo.base);
 786         return ret;
 787 }
 788
 789 int
 790 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 791                                 struct drm_device *dev,
 792                                 uint32_t handle, uint64_t *poffset)
 793 {
 794         struct drm_gem_object *gem;
 795
 796         gem = drm_gem_object_lookup(file_priv, handle);
 797         if (gem) {
 798                 struct nouveau_bo *bo = nouveau_gem_object(gem);
 799                 *poffset = drm_vma_node_offset_addr(&bo->bo.base.vma_node);
 800                 drm_gem_object_put(gem);
 801                 return 0;
 802         }
 803
 804         return -ENOENT;
 805 }