linux-core/nv50_kms_wrapper.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 "nv50_kms_wrapper.h"
  28 #include "drm_crtc_helper.h" /* be careful what you use from this */
  29
  30 /* This file serves as the interface between the common kernel modesetting code and the device dependent implementation. */
  31
  32 /*
  33  * Get private functions.
  34  */
  35
  36 struct nv50_kms_priv *nv50_get_kms_priv(struct drm_device *dev)
  37 {
  38         struct drm_nouveau_private *dev_priv = dev->dev_private;
  39         return dev_priv->kms_priv;
  40 }
  41
  42 /*
  43  * Allocation functions.
  44  */
  45
  46 static void *nv50_kms_alloc_crtc(struct drm_device *dev)
  47 {
  48         struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
  49         struct nv50_kms_crtc *crtc = kzalloc(sizeof(struct nv50_kms_crtc), GFP_KERNEL);
  50
  51         if (!crtc)
  52                 return NULL;
  53
  54         list_add_tail(&crtc->item, &kms_priv->crtcs);
  55
  56         return &(crtc->priv);
  57 }
  58
  59 static void *nv50_kms_alloc_output(struct drm_device *dev)
  60 {
  61         struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
  62         struct nv50_kms_encoder *encoder = kzalloc(sizeof(struct nv50_kms_encoder), GFP_KERNEL);
  63
  64         if (!encoder)
  65                 return NULL;
  66
  67         list_add_tail(&encoder->item, &kms_priv->encoders);
  68
  69         return &(encoder->priv);
  70 }
  71
  72 static void *nv50_kms_alloc_connector(struct drm_device *dev)
  73 {
  74         struct nv50_kms_priv *kms_priv = nv50_get_kms_priv(dev);
  75         struct nv50_kms_connector *connector = kzalloc(sizeof(struct nv50_kms_connector), GFP_KERNEL);
  76
  77         if (!connector)
  78                 return NULL;
  79
  80         list_add_tail(&connector->item, &kms_priv->connectors);
  81
  82         return &(connector->priv);
  83 }
  84
  85 static void nv50_kms_free_crtc(void *crtc)
  86 {
  87         struct nv50_kms_crtc *kms_crtc = from_nv50_crtc(crtc);
  88
  89         list_del(&kms_crtc->item);
  90
  91         kfree(kms_crtc);
  92 }
  93
  94 static void nv50_kms_free_output(void *output)
  95 {
  96         struct nv50_kms_encoder *kms_encoder = from_nv50_output(output);
  97
  98         list_del(&kms_encoder->item);
  99
 100         kfree(kms_encoder);
 101 }
 102
 103 static void nv50_kms_free_connector(void *connector)
 104 {
 105         struct nv50_kms_connector *kms_connector = from_nv50_connector(connector);
 106
 107         list_del(&kms_connector->item);
 108
 109         kfree(kms_connector);
 110 }
 111
 112 /*
 113  * Mode conversion functions.
 114  */
 115
 116 static struct nouveau_hw_mode *nv50_kms_to_hw_mode(struct drm_display_mode *mode)
 117 {
 118         struct nouveau_hw_mode *hw_mode = kzalloc(sizeof(struct nouveau_hw_mode), GFP_KERNEL);
 119         if (!hw_mode)
 120                 return NULL;
 121
 122         /* create hw values. */
 123         hw_mode->clock = mode->clock;
 124         hw_mode->flags = hw_mode->flags;
 125
 126         hw_mode->hdisplay = mode->hdisplay;
 127         hw_mode->hsync_start = mode->hsync_start;
 128         hw_mode->hsync_end = mode->hsync_end;
 129         hw_mode->htotal = mode->htotal;
 130
 131         hw_mode->hblank_start = mode->hdisplay + 1;
 132         hw_mode->hblank_end = mode->htotal;
 133
 134         hw_mode->vdisplay = mode->vdisplay;
 135         hw_mode->vsync_start = mode->vsync_start;
 136         hw_mode->vsync_end = mode->vsync_end;
 137         hw_mode->vtotal = mode->vtotal;
 138
 139         hw_mode->vblank_start = mode->vdisplay + 1;
 140         hw_mode->vblank_end = mode->vtotal;
 141
 142         return hw_mode;
 143 }
 144
 145 /*
 146  * State mirroring functions.
 147  */
 148
 149 static void nv50_kms_mirror_routing(struct drm_device *dev)
 150 {
 151         struct nv50_display *display = nv50_get_display(dev);
 152         struct nv50_crtc *crtc = NULL;
 153         struct nv50_output *output = NULL;
 154         struct nv50_connector *connector = NULL;
 155         struct drm_connector *drm_connector = NULL;
 156         struct drm_crtc *drm_crtc = NULL;
 157
 158         /* Wipe all previous connections. */
 159         list_for_each_entry(connector, &display->connectors, item) {
 160                 connector->output = NULL;
 161         }
 162
 163         list_for_each_entry(output, &display->outputs, item) {
 164                 output->crtc = NULL;
 165         }
 166
 167         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 168                 if (drm_connector->encoder) {
 169                         output = to_nv50_output(drm_connector->encoder);
 170                         connector = to_nv50_connector(drm_connector);
 171
 172                         /* hook up output to connector. */
 173                         connector->output = output;
 174
 175                         if (drm_connector->encoder->crtc) {
 176                                 crtc = to_nv50_crtc(drm_connector->encoder->crtc);
 177
 178                                 /* hook up output to crtc. */
 179                                 output->crtc = crtc;
 180                         }
 181                 }
 182         }
 183
 184         /* mirror crtc active state */
 185         list_for_each_entry(drm_crtc, &dev->mode_config.crtc_list, head) {
 186                 crtc = to_nv50_crtc(drm_crtc);
 187
 188                 crtc->enabled = drm_crtc->enabled;
 189         }
 190 }
 191
 192 /*
 193  * FB functions.
 194  */
 195
 196 static void nv50_kms_framebuffer_destroy(struct drm_framebuffer *drm_framebuffer)
 197 {
 198         drm_framebuffer_cleanup(drm_framebuffer);
 199
 200         kfree(drm_framebuffer);
 201 }
 202
 203 static const struct drm_framebuffer_funcs nv50_kms_fb_funcs = {
 204         .destroy = nv50_kms_framebuffer_destroy,
 205 };
 206
 207 /*
 208  * Mode config functions.
 209  */
 210
 211 static struct drm_framebuffer *nv50_kms_framebuffer_create(struct drm_device *dev,
 212                                                 struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd)
 213 {
 214         struct drm_framebuffer *drm_framebuffer = kzalloc(sizeof(struct drm_framebuffer), GFP_KERNEL);
 215         if (!drm_framebuffer)
 216                 return NULL;
 217
 218         drm_framebuffer_init(dev, drm_framebuffer, &nv50_kms_fb_funcs);
 219         drm_helper_mode_fill_fb_struct(drm_framebuffer, mode_cmd);
 220
 221         return drm_framebuffer;
 222 }
 223
 224 static int nv50_kms_fb_changed(struct drm_device *dev)
 225 {
 226         return 0; /* not needed until nouveaufb? */
 227 }
 228
 229 static const struct drm_mode_config_funcs nv50_kms_mode_funcs = {
 230         .resize_fb = NULL,
 231         .fb_create = nv50_kms_framebuffer_create,
 232         .fb_changed = nv50_kms_fb_changed,
 233 };
 234
 235 /*
 236  * CRTC functions.
 237  */
 238
 239 static int nv50_kms_crtc_cursor_set(struct drm_crtc *drm_crtc, uint32_t buffer_handle,
 240                           uint32_t width, uint32_t height)
 241 {
 242         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 243         struct nv50_display *display = nv50_get_display(crtc->dev);
 244         int rval = 0;
 245
 246         if (width != 64 || height != 64)
 247                 return -EINVAL;
 248
 249         /* set bo before doing show cursor */
 250         if (buffer_handle) {
 251                 rval = crtc->cursor->set_bo(crtc, (drm_handle_t) buffer_handle);
 252                 if (rval != 0)
 253                         goto out;
 254         }
 255
 256         crtc->cursor->visible = buffer_handle ? true : false;
 257
 258         if (buffer_handle) {
 259                 rval = crtc->cursor->show(crtc);
 260                 if (rval != 0)
 261                         goto out;
 262         } else { /* no handle implies hiding the cursor */
 263                 rval = crtc->cursor->hide(crtc);
 264                 goto out;
 265         }
 266
 267         if (rval != 0)
 268                 return rval;
 269
 270 out:
 271         /* in case this triggers any other cursor changes */
 272         display->update(display);
 273
 274         return rval;
 275 }
 276
 277 static int nv50_kms_crtc_cursor_move(struct drm_crtc *drm_crtc, int x, int y)
 278 {
 279         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 280
 281         return crtc->cursor->set_pos(crtc, x, y);
 282 }
 283
 284 void nv50_kms_crtc_gamma_set(struct drm_crtc *drm_crtc, u16 *r, u16 *g, u16 *b,
 285                 uint32_t size)
 286 {
 287         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 288
 289         if (size != 256)
 290                 return;
 291
 292         crtc->lut->set(crtc, (uint16_t *)r, (uint16_t *)g, (uint16_t *)b);
 293 }
 294
 295 int nv50_kms_crtc_set_config(struct drm_mode_set *set)
 296 {
 297         int rval = 0, i;
 298         uint32_t crtc_mask = 0;
 299         struct drm_device *dev = NULL;
 300         struct drm_nouveau_private *dev_priv = NULL;
 301         struct nv50_display *display = NULL;
 302         struct drm_connector *drm_connector = NULL;
 303         struct drm_encoder *drm_encoder = NULL;
 304         struct drm_crtc *drm_crtc = NULL;
 305
 306         struct nv50_crtc *crtc = NULL;
 307         struct nv50_output *output = NULL;
 308         struct nv50_connector *connector = NULL;
 309         struct nouveau_hw_mode *hw_mode = NULL;
 310         struct nv50_fb_info fb_info;
 311
 312         bool blank = false;
 313         bool switch_fb = false;
 314         bool modeset = false;
 315
 316         NV50_DEBUG("\n");
 317
 318         /*
 319          * Supported operations:
 320          * - Switch mode.
 321          * - Switch framebuffer.
 322          * - Blank screen.
 323          */
 324
 325         /* Sanity checking */
 326         if (!set) {
 327                 DRM_ERROR("Sanity check failed\n");
 328                 goto out;
 329         }
 330
 331         if (!set->crtc) {
 332                 DRM_ERROR("Sanity check failed\n");
 333                 goto out;
 334         }
 335
 336         if (set->mode) {
 337                 if (set->fb) {
 338                         if (!drm_mode_equal(set->mode, &set->crtc->mode))
 339                                 modeset = true;
 340
 341                         if (set->fb != set->crtc->fb)
 342                                 switch_fb = true;
 343
 344                         if (set->x != set->crtc->x || set->y != set->crtc->y)
 345                                 switch_fb = true;
 346                 }
 347         } else {
 348                 blank = true;
 349         }
 350
 351         if (!set->connectors && !blank) {
 352                 DRM_ERROR("Sanity check failed\n");
 353                 goto out;
 354         }
 355
 356         /* Basic variable setting */
 357         dev = set->crtc->dev;
 358         dev_priv = dev->dev_private;
 359         display = nv50_get_display(dev);
 360         crtc = to_nv50_crtc(set->crtc);
 361
 362         /**
 363          * Wiring up the encoders and connectors.
 364          */
 365
 366         /* for switch_fb we verify if any important changes happened */
 367         if (!blank) {
 368                 /* Mode validation */
 369                 hw_mode = nv50_kms_to_hw_mode(set->mode);
 370
 371                 rval = crtc->validate_mode(crtc, hw_mode);
 372
 373                 if (rval != MODE_OK) {
 374                         DRM_ERROR("Mode not ok\n");
 375                         goto out;
 376                 }
 377
 378                 for (i = 0; i < set->num_connectors; i++) {
 379                         drm_connector = set->connectors[i];
 380                         if (!drm_connector) {
 381                                 DRM_ERROR("No connector\n");
 382                                 goto out;
 383                         }
 384                         connector = to_nv50_connector(drm_connector);
 385
 386                         /* This is to ensure it knows the connector subtype. */
 387                         drm_connector->funcs->fill_modes(drm_connector, 0, 0);
 388
 389                         output = connector->to_output(connector, nv50_kms_connector_is_digital(drm_connector));
 390                         if (!output) {
 391                                 DRM_ERROR("No output\n");
 392                                 goto out;
 393                         }
 394
 395                         rval = output->validate_mode(output, hw_mode);
 396                         if (rval != MODE_OK) {
 397                                 DRM_ERROR("Mode not ok\n");
 398                                 goto out;
 399                         }
 400
 401                         /* verify if any "sneaky" changes happened */
 402                         if (output != connector->output)
 403                                 modeset = true;
 404
 405                         if (output->crtc != crtc)
 406                                 modeset = true;
 407                 }
 408         }
 409
 410         /* Now we verified if anything changed, fail if nothing has. */
 411         if (!modeset && !switch_fb && !blank)
 412                 DRM_INFO("A seemingly empty modeset encountered, this could be a bug.\n");
 413
 414         /* Validation done, move on to cleaning of existing structures. */
 415         if (modeset) {
 416                 /* find encoders that use this crtc. */
 417                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 418                         if (drm_encoder->crtc == set->crtc) {
 419                                 /* find the connector that goes with it */
 420                                 list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 421                                         if (drm_connector->encoder == drm_encoder) {
 422                                                 drm_connector->encoder =  NULL;
 423                                                 break;
 424                                         }
 425                                 }
 426                                 drm_encoder->crtc = NULL;
 427                         }
 428                 }
 429
 430                 /* now find if our desired encoders or connectors are in use already. */
 431                 for (i = 0; i < set->num_connectors; i++) {
 432                         drm_connector = set->connectors[i];
 433                         if (!drm_connector) {
 434                                 DRM_ERROR("No connector\n");
 435                                 goto out;
 436                         }
 437
 438                         if (!drm_connector->encoder)
 439                                 continue;
 440
 441                         drm_encoder = drm_connector->encoder;
 442                         drm_connector->encoder = NULL;
 443
 444                         if (!drm_encoder->crtc)
 445                                 continue;
 446
 447                         drm_crtc = drm_encoder->crtc;
 448                         drm_encoder->crtc = NULL;
 449
 450                         drm_crtc->enabled = false;
 451                 }
 452
 453                 /* Time to wire up the public encoder, the private one will be handled later. */
 454                 for (i = 0; i < set->num_connectors; i++) {
 455                         drm_connector = set->connectors[i];
 456                         if (!drm_connector) {
 457                                 DRM_ERROR("No connector\n");
 458                                 goto out;
 459                         }
 460
 461                         output = connector->to_output(connector, nv50_kms_connector_is_digital(drm_connector));
 462                         if (!output) {
 463                                 DRM_ERROR("No output\n");
 464                                 goto out;
 465                         }
 466
 467                         /* find the encoder public structure that matches out output structure. */
 468                         drm_encoder = to_nv50_kms_encoder(output);
 469
 470                         if (!drm_encoder) {
 471                                 DRM_ERROR("No encoder\n");
 472                                 goto out;
 473                         }
 474
 475                         drm_encoder->crtc = set->crtc;
 476                         set->crtc->enabled = true;
 477                         drm_connector->encoder = drm_encoder;
 478                 }
 479         }
 480
 481         /**
 482          * Disable crtc.
 483          */
 484
 485         if (blank) {
 486                 crtc = to_nv50_crtc(set->crtc);
 487
 488                 set->crtc->enabled = false;
 489
 490                 /* disconnect encoders and connectors */
 491                 for (i = 0; i < set->num_connectors; i++) {
 492                         drm_connector = set->connectors[i];
 493
 494                         if (!drm_connector->encoder)
 495                                 continue;
 496
 497                         drm_connector->encoder->crtc = NULL;
 498                         drm_connector->encoder = NULL;
 499                 }
 500         }
 501
 502         /**
 503          * All state should now be updated, now onto the real work.
 504          */
 505
 506         /* mirror everything to the private structs */
 507         nv50_kms_mirror_routing(dev);
 508
 509         /**
 510          * Bind framebuffer.
 511          */
 512
 513         if (switch_fb) {
 514                 crtc = to_nv50_crtc(set->crtc);
 515
 516                 /* set framebuffer */
 517                 set->crtc->fb = set->fb;
 518
 519                 /* set private framebuffer */
 520                 crtc = to_nv50_crtc(set->crtc);
 521                 fb_info.block = find_block_by_handle(dev_priv->fb_heap, set->fb->mm_handle);
 522                 fb_info.width = set->fb->width;
 523                 fb_info.height = set->fb->height;
 524                 fb_info.depth = set->fb->depth;
 525                 fb_info.bpp = set->fb->bits_per_pixel;
 526                 fb_info.pitch = set->fb->pitch;
 527                 fb_info.x = set->x;
 528                 fb_info.y = set->y;
 529
 530                 rval = crtc->fb->bind(crtc, &fb_info);
 531                 if (rval != 0) {
 532                         DRM_ERROR("fb_bind failed\n");
 533                         goto out;
 534                 }
 535         }
 536
 537         /* this is !cursor_show */
 538         if (!crtc->cursor->enabled) {
 539                 rval = crtc->cursor->enable(crtc);
 540                 if (rval != 0) {
 541                         DRM_ERROR("cursor_enable failed\n");
 542                         goto out;
 543                 }
 544         }
 545
 546         /**
 547          * Blanking.
 548          */
 549
 550         if (blank) {
 551                 crtc = to_nv50_crtc(set->crtc);
 552
 553                 rval = crtc->blank(crtc, true);
 554                 if (rval != 0) {
 555                         DRM_ERROR("blanking failed\n");
 556                         goto out;
 557                 }
 558
 559                 /* detach any outputs that are currently unused */
 560                 list_for_each_entry(drm_encoder, &dev->mode_config.encoder_list, head) {
 561                         if (!drm_encoder->crtc) {
 562                                 output = to_nv50_output(drm_encoder);
 563
 564                                 rval = output->execute_mode(output, true);
 565                                 if (rval != 0) {
 566                                         DRM_ERROR("detaching output failed\n");
 567                                         goto out;
 568                                 }
 569                         }
 570                 }
 571         }
 572
 573         /**
 574          * Change framebuffer, without changing mode.
 575          */
 576
 577         if (switch_fb && !modeset && !blank) {
 578                 crtc = to_nv50_crtc(set->crtc);
 579
 580                 rval = crtc->set_fb(crtc);
 581                 if (rval != 0) {
 582                         DRM_ERROR("set_fb failed\n");
 583                         goto out;
 584                 }
 585
 586                 /* this also sets the fb offset */
 587                 rval = crtc->blank(crtc, false);
 588                 if (rval != 0) {
 589                         DRM_ERROR("unblanking failed\n");
 590                         goto out;
 591                 }
 592         }
 593
 594         /**
 595          * Normal modesetting.
 596          */
 597
 598         if (modeset) {
 599                 crtc = to_nv50_crtc(set->crtc);
 600
 601                 /* disconnect unused outputs */
 602                 list_for_each_entry(output, &display->outputs, item) {
 603                         if (output->crtc) {
 604                                 crtc_mask |= 1 << output->crtc->index;
 605                         } else {
 606                                 rval = output->execute_mode(output, true);
 607                                 if (rval != 0) {
 608                                         DRM_ERROR("detaching output failed\n");
 609                                         goto out;
 610                                 }
 611                         }
 612                 }
 613
 614                 /* blank any unused crtcs */
 615                 list_for_each_entry(crtc, &display->crtcs, item) {
 616                         if (!(crtc_mask & (1 << crtc->index)))
 617                                 crtc->blank(crtc, true);
 618                 }
 619
 620                 crtc = to_nv50_crtc(set->crtc);
 621
 622                 rval = crtc->set_mode(crtc, hw_mode);
 623                 if (rval != 0) {
 624                         DRM_ERROR("crtc mode set failed\n");
 625                         goto out;
 626                 }
 627
 628                 /* find native mode. */
 629                 list_for_each_entry(output, &display->outputs, item) {
 630                         if (output->crtc != crtc)
 631                                 continue;
 632
 633                         *crtc->native_mode = *output->native_mode;
 634                         list_for_each_entry(connector, &display->connectors, item) {
 635                                 if (connector->output != output)
 636                                         continue;
 637
 638                                 crtc->requested_scaling_mode = connector->requested_scaling_mode;
 639                                 crtc->use_dithering = connector->use_dithering;
 640                                 break;
 641                         }
 642
 643                         if (crtc->requested_scaling_mode == SCALE_NON_GPU)
 644                                 crtc->use_native_mode = false;
 645                         else
 646                                 crtc->use_native_mode = true;
 647
 648                         break; /* no use in finding more than one mode */
 649                 }
 650
 651                 rval = crtc->execute_mode(crtc);
 652                 if (rval != 0) {
 653                         DRM_ERROR("crtc execute mode failed\n");
 654                         goto out;
 655                 }
 656
 657                 list_for_each_entry(output, &display->outputs, item) {
 658                         if (output->crtc != crtc)
 659                                 continue;
 660
 661                         rval = output->execute_mode(output, false);
 662                         if (rval != 0) {
 663                                 DRM_ERROR("output execute mode failed\n");
 664                                 goto out;
 665                         }
 666                 }
 667
 668                 rval = crtc->set_scale(crtc);
 669                 if (rval != 0) {
 670                         DRM_ERROR("crtc set scale failed\n");
 671                         goto out;
 672                 }
 673
 674                 /* next line changes crtc, so putting it here is important */
 675                 display->last_crtc = crtc->index;
 676         }
 677
 678         /* always reset dpms, regardless if any other modesetting is done. */
 679         if (!blank) {
 680                 /* this is executed immediately */
 681                 list_for_each_entry(output, &display->outputs, item) {
 682                         if (output->crtc != crtc)
 683                                 continue;
 684
 685                         rval = output->set_power_mode(output, DRM_MODE_DPMS_ON);
 686                         if (rval != 0) {
 687                                 DRM_ERROR("output set power mode failed\n");
 688                                 goto out;
 689                         }
 690                 }
 691
 692                 /* update dpms state to DPMSModeOn */
 693                 for (i = 0; i < set->num_connectors; i++) {
 694                         drm_connector = set->connectors[i];
 695                         if (!drm_connector) {
 696                                 DRM_ERROR("No connector\n");
 697                                 goto out;
 698                         }
 699
 700                         rval = drm_connector_property_set_value(drm_connector,
 701                                         dev->mode_config.dpms_property,
 702                                         DRM_MODE_DPMS_ON);
 703                         if (rval != 0) {
 704                                 DRM_ERROR("failed to update dpms state\n");
 705                                 goto out;
 706                         }
 707                 }
 708         }
 709
 710         display->update(display);
 711
 712         /* Update the current mode, now that all has gone well. */
 713         if (modeset) {
 714                 set->crtc->mode = *(set->mode);
 715                 set->crtc->x = set->x;
 716                 set->crtc->y = set->y;
 717         }
 718
 719         kfree(hw_mode);
 720
 721         return 0;
 722
 723 out:
 724         kfree(hw_mode);
 725
 726         if (rval != 0)
 727                 return rval;
 728         else
 729                 return -EINVAL;
 730 }
 731
 732 static void nv50_kms_crtc_destroy(struct drm_crtc *drm_crtc)
 733 {
 734         struct nv50_crtc *crtc = to_nv50_crtc(drm_crtc);
 735
 736         drm_crtc_cleanup(drm_crtc);
 737
 738         /* this will even destroy the public structure. */
 739         crtc->destroy(crtc);
 740 }
 741
 742 static const struct drm_crtc_funcs nv50_kms_crtc_funcs = {
 743         .save = NULL,
 744         .restore = NULL,
 745         .cursor_set = nv50_kms_crtc_cursor_set,
 746         .cursor_move = nv50_kms_crtc_cursor_move,
 747         .gamma_set = nv50_kms_crtc_gamma_set,
 748         .set_config = nv50_kms_crtc_set_config,
 749         .destroy = nv50_kms_crtc_destroy,
 750 };
 751
 752 static int nv50_kms_crtcs_init(struct drm_device *dev)
 753 {
 754         struct nv50_display *display = nv50_get_display(dev);
 755         struct nv50_crtc *crtc = NULL;
 756
 757         /*
 758          * This may look a bit confusing, but:
 759          * The internal structure is already allocated and so is the public one.
 760          * Just a matter of getting to the memory and register it.
 761          */
 762         list_for_each_entry(crtc, &display->crtcs, item) {
 763                 struct drm_crtc *drm_crtc = to_nv50_kms_crtc(crtc);
 764
 765                 drm_crtc_init(dev, drm_crtc, &nv50_kms_crtc_funcs);
 766
 767                 /* init lut storage */
 768                 drm_mode_crtc_set_gamma_size(drm_crtc, 256);
 769         }
 770
 771         return 0;
 772 }
 773
 774 /*
 775  * Encoder functions
 776  */
 777
 778 static void nv50_kms_encoder_destroy(struct drm_encoder *drm_encoder)
 779 {
 780         struct nv50_output *output = to_nv50_output(drm_encoder);
 781
 782         drm_encoder_cleanup(drm_encoder);
 783
 784         /* this will even destroy the public structure. */
 785         output->destroy(output);
 786 }
 787
 788 static const struct drm_encoder_funcs nv50_kms_encoder_funcs = {
 789         .destroy = nv50_kms_encoder_destroy,
 790 };
 791
 792 static int nv50_kms_encoders_init(struct drm_device *dev)
 793 {
 794         struct nv50_display *display = nv50_get_display(dev);
 795         struct nv50_output *output = NULL;
 796
 797         list_for_each_entry(output, &display->outputs, item) {
 798                 struct drm_encoder *drm_encoder = to_nv50_kms_encoder(output);
 799                 uint32_t type = DRM_MODE_ENCODER_NONE;
 800
 801                 switch (output->type) {
 802                         case OUTPUT_DAC:
 803                                 type = DRM_MODE_ENCODER_DAC;
 804                                 break;
 805                         case OUTPUT_TMDS:
 806                                 type = DRM_MODE_ENCODER_TMDS;
 807                                 break;
 808                         case OUTPUT_LVDS:
 809                                 type = DRM_MODE_ENCODER_LVDS;
 810                                 break;
 811                         case OUTPUT_TV:
 812                                 type = DRM_MODE_ENCODER_TVDAC;
 813                                 break;
 814                         default:
 815                                 type = DRM_MODE_ENCODER_NONE;
 816                                 break;
 817                 }
 818
 819                 if (type == DRM_MODE_ENCODER_NONE) {
 820                         DRM_ERROR("DRM_MODE_ENCODER_NONE encountered\n");
 821                         continue;
 822                 }
 823
 824                 drm_encoder_init(dev, drm_encoder, &nv50_kms_encoder_funcs, type);
 825
 826                 /* I've never seen possible crtc's restricted. */
 827                 drm_encoder->possible_crtcs = 3;
 828                 drm_encoder->possible_clones = 0;
 829         }
 830
 831         return 0;
 832 }
 833
 834 /*
 835  * Connector functions
 836  */
 837
 838 bool nv50_kms_connector_is_digital(struct drm_connector *drm_connector)
 839 {
 840         struct drm_device *dev = drm_connector->dev;
 841
 842         switch (drm_connector->connector_type) {
 843                 case DRM_MODE_CONNECTOR_VGA:
 844                 case DRM_MODE_CONNECTOR_SVIDEO:
 845                         return false;
 846                 case DRM_MODE_CONNECTOR_DVID:
 847                 case DRM_MODE_CONNECTOR_LVDS:
 848                         return true;
 849                 default:
 850                         break;
 851         }
 852
 853         if (drm_connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
 854                 int rval;
 855                 uint64_t prop_val;
 856
 857                 rval = drm_connector_property_get_value(drm_connector, dev->mode_config.dvi_i_select_subconnector_property, &prop_val);
 858                 if (rval) {
 859                         DRM_ERROR("Unable to find select subconnector property, defaulting to DVI-D\n");
 860                         return true;
 861                 }
 862
 863                 /* Is a subconnector explicitly selected? */
 864                 switch (prop_val) {
 865                         case DRM_MODE_SUBCONNECTOR_DVID:
 866                                 return true;
 867                         case DRM_MODE_SUBCONNECTOR_DVIA:
 868                                 return false;
 869                         default:
 870                                 break;
 871                 }
 872
 873                 rval = drm_connector_property_get_value(drm_connector, dev->mode_config.dvi_i_subconnector_property, &prop_val);
 874                 if (rval) {
 875                         DRM_ERROR("Unable to find subconnector property, defaulting to DVI-D\n");
 876                         return true;
 877                 }
 878
 879                 /* Do we know what subconnector we currently have connected? */
 880                 switch (prop_val) {
 881                         case DRM_MODE_SUBCONNECTOR_DVID:
 882                                 return true;
 883                         case DRM_MODE_SUBCONNECTOR_DVIA:
 884                                 return false;
 885                         default:
 886                                 DRM_ERROR("Unknown subconnector value, defaulting to DVI-D\n");
 887                                 return true;
 888                 }
 889         }
 890
 891         DRM_ERROR("Unknown connector type, defaulting to analog\n");
 892         return false;
 893 }
 894
 895 void nv50_kms_connector_detect_all(struct drm_device *dev)
 896 {
 897         struct drm_connector *drm_connector = NULL;
 898
 899         list_for_each_entry(drm_connector, &dev->mode_config.connector_list, head) {
 900                 drm_connector->funcs->detect(drm_connector);
 901         }
 902 }
 903
 904 static enum drm_connector_status nv50_kms_connector_detect(struct drm_connector *drm_connector)
 905 {
 906         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 907         struct drm_device *dev = drm_connector->dev;
 908         bool connected;
 909         int old_status;
 910
 911         connected = connector->detect(connector);
 912
 913         old_status = drm_connector->status;
 914
 915         if (connected)
 916                 drm_connector->status = connector_status_connected;
 917         else
 918                 drm_connector->status = connector_status_disconnected;
 919
 920         /* update our modes whenever there is reason to */
 921         if (old_status != drm_connector->status) {
 922                 drm_connector->funcs->fill_modes(drm_connector, 0, 0);
 923
 924                 /* notify fb of changes */
 925                 dev->mode_config.funcs->fb_changed(dev);
 926         }
 927
 928         return drm_connector->status;
 929 }
 930
 931 static void nv50_kms_connector_destroy(struct drm_connector *drm_connector)
 932 {
 933         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 934
 935         drm_sysfs_connector_remove(drm_connector);
 936         drm_connector_cleanup(drm_connector);
 937
 938         /* this will even destroy the public structure. */
 939         connector->destroy(connector);
 940 }
 941
 942 /*
 943  * Detailed mode info for a standard 640x480@60Hz monitor
 944  */
 945 static struct drm_display_mode std_mode[] = {
 946         /*{ DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT, 25200, 640, 656,
 947                  752, 800, 0, 480, 490, 492, 525, 0,
 948                  DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },*/ /* 640x480@60Hz */
 949         { DRM_MODE("1280x1024", DRM_MODE_TYPE_DEFAULT, 135000, 1280, 1296,
 950                    1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
 951                    DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) }, /* 1280x1024@75Hz */
 952 };
 953
 954 static void nv50_kms_connector_fill_modes(struct drm_connector *drm_connector, uint32_t maxX, uint32_t maxY)
 955 {
 956         struct nv50_connector *connector = to_nv50_connector(drm_connector);
 957         struct drm_device *dev = drm_connector->dev;
 958         int rval = 0;
 959         bool connected;
 960         struct drm_display_mode *mode, *t;
 961         struct edid *edid = NULL;
 962
 963         NV50_DEBUG("%s\n", drm_get_connector_name(drm_connector));
 964         /* set all modes to the unverified state */
 965         list_for_each_entry_safe(mode, t, &drm_connector->modes, head)
 966                 mode->status = MODE_UNVERIFIED;
 967
 968         connected = connector->detect(connector);
 969
 970         if (connected)
 971                 drm_connector->status = connector_status_connected;
 972         else
 973                 drm_connector->status = connector_status_disconnected;
 974
 975         if (!connected) {
 976                 NV50_DEBUG("%s is disconnected\n", drm_get_connector_name(drm_connector));
 977         }
 978
 979         /* Not all connnectors have an i2c channel. */
 980         if (connected && connector->i2c_chan)
 981                 edid = (struct edid *) drm_do_probe_ddc_edid(&connector->i2c_chan->adapter);
 982
 983         /* This will remove edid if needed. */
 984         drm_mode_connector_update_edid_property(drm_connector, edid);
 985
 986         if (edid) {
 987                 rval = drm_add_edid_modes(drm_connector, edid);
 988
 989                 /* 2 encoders per connector */
 990                 /* eventually do this based on load detect and hot plug detect */
 991                 if (drm_connector->connector_type == DRM_MODE_CONNECTOR_DVII) {
 992                         uint64_t subtype = 0;
 993                         if (edid->digital)
 994                                 subtype = DRM_MODE_SUBCONNECTOR_DVID;
 995                         else
 996                                 subtype = DRM_MODE_SUBCONNECTOR_DVIA;
 997                         drm_connector_property_set_value(drm_connector, dev->mode_config.dvi_i_subconnector_property, subtype);
 998                 }
 999
1000                 kfree(edid);
1001         }
1002
1003         if (rval) /* number of modes  > 1 */
1004                 drm_mode_connector_list_update(drm_connector);
1005
1006         if (maxX && maxY)
1007                 drm_mode_validate_size(dev, &drm_connector->modes, maxX, maxY, 0);
1008
1009         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
1010                 if (mode->status == MODE_OK) {
1011                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
1012                         struct nv50_output *output = connector->to_output(connector, nv50_kms_connector_is_digital(drm_connector));
1013
1014                         mode->status = output->validate_mode(output, hw_mode);
1015                         /* find native mode, TODO: also check if we actually found one */
1016                         if (mode->status == MODE_OK) {
1017                                 if (mode->type & DRM_MODE_TYPE_PREFERRED)
1018                                         *output->native_mode = *hw_mode;
1019                         }
1020                         kfree(hw_mode);
1021                 }
1022         }
1023
1024         /* revalidate now that we have native mode */
1025         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
1026                 if (mode->status == MODE_OK) {
1027                         struct nouveau_hw_mode *hw_mode = nv50_kms_to_hw_mode(mode);
1028                         struct nv50_output *output = connector->to_output(connector, nv50_kms_connector_is_digital(drm_connector));
1029
1030                         mode->status = output->validate_mode(output, hw_mode);
1031                         kfree(hw_mode);
1032                 }
1033         }
1034
1035         drm_mode_prune_invalid(dev, &drm_connector->modes, true);
1036
1037         /* pruning is done, so bail out. */
1038         if (!connected)
1039                 return;
1040
1041         if (list_empty(&drm_connector->modes)) {
1042                 struct drm_display_mode *stdmode;
1043                 struct nouveau_hw_mode *hw_mode;
1044                 struct nv50_output *output;
1045
1046                 NV50_DEBUG("No valid modes on %s\n", drm_get_connector_name(drm_connector));
1047
1048                 /* Should we do this here ???
1049                  * When no valid EDID modes are available we end up
1050                  * here and bailed in the past, now we add a standard
1051                  * 640x480@60Hz mode and carry on.
1052                  */
1053                 stdmode = drm_mode_duplicate(dev, &std_mode[0]);
1054                 drm_mode_probed_add(drm_connector, stdmode);
1055                 drm_mode_list_concat(&drm_connector->probed_modes,
1056                                      &drm_connector->modes);
1057
1058                 /* also add it as native mode */
1059                 hw_mode = nv50_kms_to_hw_mode(mode);
1060                 output = connector->to_output(connector, nv50_kms_connector_is_digital(drm_connector));
1061
1062                 if (hw_mode)
1063                         *output->native_mode = *hw_mode;
1064
1065                 DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n",
1066                           drm_get_connector_name(drm_connector));
1067         }
1068
1069         drm_mode_sort(&drm_connector->modes);
1070
1071         NV50_DEBUG("Probed modes for %s\n", drm_get_connector_name(drm_connector));
1072
1073         list_for_each_entry_safe(mode, t, &drm_connector->modes, head) {
1074                 mode->vrefresh = drm_mode_vrefresh(mode);
1075
1076                 /* is this needed, as it's unused by the driver? */
1077                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1078                 drm_mode_debug_printmodeline(mode);
1079         }
1080 }
1081
1082 static int nv50_kms_connector_set_property(struct drm_connector *drm_connector,
1083                                         struct drm_property *property,
1084                                         uint64_t value)
1085 {
1086         struct drm_device *dev = drm_connector->dev;
1087         struct nv50_connector *connector = to_nv50_connector(drm_connector);
1088         int rval = 0;
1089         bool delay_change = false;
1090
1091         /* DPMS */
1092         if (property == dev->mode_config.dpms_property && drm_connector->encoder) {
1093                 struct nv50_output *output = to_nv50_output(drm_connector->encoder);
1094
1095                 rval = output->set_power_mode(output, (int) value);
1096
1097                 return rval;
1098         }
1099
1100         /* Scaling mode */
1101         if (property == dev->mode_config.scaling_mode_property) {
1102                 struct nv50_crtc *crtc = NULL;
1103                 struct nv50_display *display = nv50_get_display(dev);
1104                 int internal_value = 0;
1105
1106                 switch (value) {
1107                         case DRM_MODE_SCALE_NON_GPU:
1108                                 internal_value = SCALE_NON_GPU;
1109                                 break;
1110                         case DRM_MODE_SCALE_FULLSCREEN:
1111                                 internal_value = SCALE_FULLSCREEN;
1112                                 break;
1113                         case DRM_MODE_SCALE_NO_SCALE:
1114                                 internal_value = SCALE_NOSCALE;
1115                                 break;
1116                         case DRM_MODE_SCALE_ASPECT:
1117                                 internal_value = SCALE_ASPECT;
1118                                 break;
1119                         default:
1120                                 break;
1121                 }
1122
1123                 /* LVDS always needs gpu scaling */
1124                 if (connector->type == CONNECTOR_LVDS && internal_value == SCALE_NON_GPU)
1125                         return -EINVAL;
1126
1127                 connector->requested_scaling_mode = internal_value;
1128
1129                 if (drm_connector->encoder && drm_connector->encoder->crtc)
1130                         crtc = to_nv50_crtc(drm_connector->encoder->crtc);
1131
1132                 if (!crtc)
1133                         return 0;
1134
1135                 crtc->requested_scaling_mode = connector->requested_scaling_mode;
1136
1137                 /* going from and to a gpu scaled regime requires a modesetting, so wait until next modeset */
1138                 if (crtc->scaling_mode == SCALE_NON_GPU || internal_value == SCALE_NON_GPU) {
1139                         DRM_INFO("Moving from or to a non-gpu scaled mode, this will be processed upon next modeset.");
1140                         delay_change = true;
1141                 }
1142
1143                 if (delay_change)
1144                         return 0;
1145
1146                 rval = crtc->set_scale(crtc);
1147                 if (rval)
1148                         return rval;
1149
1150                 /* process command buffer */
1151                 display->update(display);
1152
1153                 return 0;
1154         }
1155
1156         /* Dithering */
1157         if (property == dev->mode_config.dithering_mode_property) {
1158                 struct nv50_crtc *crtc = NULL;
1159                 struct nv50_display *display = nv50_get_display(dev);
1160
1161                 if (value == DRM_MODE_DITHERING_ON)
1162                         connector->use_dithering = true;
1163                 else
1164                         connector->use_dithering = false;
1165
1166                 if (drm_connector->encoder && drm_connector->encoder->crtc)
1167                         crtc = to_nv50_crtc(drm_connector->encoder->crtc);
1168
1169                 if (!crtc)
1170                         return 0;
1171
1172                 /* update hw state */
1173                 crtc->use_dithering = connector->use_dithering;
1174                 rval = crtc->set_dither(crtc);
1175                 if (rval)
1176                         return rval;
1177
1178                 /* process command buffer */
1179                 display->update(display);
1180
1181                 return 0;
1182         }
1183
1184         return -EINVAL;
1185 }
1186
1187 static const struct drm_connector_funcs nv50_kms_connector_funcs = {
1188         .save = NULL,
1189         .restore = NULL,
1190         .detect = nv50_kms_connector_detect,
1191         .destroy = nv50_kms_connector_destroy,
1192         .fill_modes = nv50_kms_connector_fill_modes,
1193         .set_property = nv50_kms_connector_set_property
1194 };
1195
1196 static int nv50_kms_get_scaling_mode(struct drm_connector *drm_connector)
1197 {
1198         struct nv50_connector *connector = NULL;
1199         int drm_mode = 0;
1200
1201         if (!drm_connector) {
1202                 DRM_ERROR("drm_connector is NULL\n");
1203                 return 0;
1204         }
1205
1206         connector = to_nv50_connector(drm_connector);
1207
1208         switch (connector->requested_scaling_mode) {
1209                 case SCALE_NON_GPU:
1210                         drm_mode = DRM_MODE_SCALE_NON_GPU;
1211                         break;
1212                 case SCALE_FULLSCREEN:
1213                         drm_mode = DRM_MODE_SCALE_FULLSCREEN;
1214                         break;
1215                 case SCALE_NOSCALE:
1216                         drm_mode = DRM_MODE_SCALE_NO_SCALE;
1217                         break;
1218                 case SCALE_ASPECT:
1219                         drm_mode = DRM_MODE_SCALE_ASPECT;
1220                         break;
1221                 default:
1222                         break;
1223         }
1224
1225         return drm_mode;
1226 }
1227
1228 static int nv50_kms_connectors_init(struct drm_device *dev)
1229 {
1230         struct nv50_display *display = nv50_get_display(dev);
1231         struct nv50_connector *connector = NULL;
1232         int i;
1233
1234         /* Initialise some optional connector properties. */
1235         drm_mode_create_scaling_mode_property(dev);
1236         drm_mode_create_dithering_property(dev);
1237
1238         list_for_each_entry(connector, &display->connectors, item) {
1239                 struct drm_connector *drm_connector = to_nv50_kms_connector(connector);
1240                 uint32_t type = DRM_MODE_CONNECTOR_Unknown;
1241
1242                 switch (connector->type) {
1243                         case CONNECTOR_VGA:
1244                                 type = DRM_MODE_CONNECTOR_VGA;
1245                                 break;
1246                         case CONNECTOR_DVI_D:
1247                                 type = DRM_MODE_CONNECTOR_DVID;
1248                                 break;
1249                         case CONNECTOR_DVI_I:
1250                                 type = DRM_MODE_CONNECTOR_DVII;
1251                                 break;
1252                         case CONNECTOR_LVDS:
1253                                 type = DRM_MODE_CONNECTOR_LVDS;
1254                                 break;
1255                         case CONNECTOR_TV:
1256                                 type = DRM_MODE_CONNECTOR_SVIDEO;
1257                                 break;
1258                         default:
1259                                 type = DRM_MODE_CONNECTOR_Unknown;
1260                                 break;
1261                 }
1262
1263                 if (type == DRM_MODE_CONNECTOR_Unknown) {
1264                         DRM_ERROR("DRM_MODE_CONNECTOR_Unknown encountered\n");
1265                         continue;
1266                 }
1267
1268                 /* It should be allowed sometimes, but let's be safe for the moment. */
1269                 drm_connector->interlace_allowed = false;
1270                 drm_connector->doublescan_allowed = false;
1271
1272                 drm_connector_init(dev, drm_connector, &nv50_kms_connector_funcs, type);
1273
1274                 /* Init DVI-I specific properties */
1275                 if (type == DRM_MODE_CONNECTOR_DVII) {
1276                         drm_mode_create_dvi_i_properties(dev);
1277                         drm_connector_attach_property(drm_connector, dev->mode_config.dvi_i_subconnector_property, 0);
1278                         drm_connector_attach_property(drm_connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
1279                 }
1280
1281                 /* If supported in the future, it will have to use the scalers internally and not expose them. */
1282                 if (type != DRM_MODE_CONNECTOR_SVIDEO) {
1283                         drm_connector_attach_property(drm_connector, dev->mode_config.scaling_mode_property, nv50_kms_get_scaling_mode(drm_connector));
1284                 }
1285
1286                 drm_connector_attach_property(drm_connector, dev->mode_config.dithering_mode_property, connector->use_dithering ? DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
1287
1288                 /* attach encoders, possibilities are analog + digital */
1289                 for (i = 0; i < 2; i++) {
1290                         struct drm_encoder *drm_encoder = NULL;
1291                         struct nv50_output *output = connector->to_output(connector, i);
1292                         if (!output)
1293                                 continue;
1294
1295                         drm_encoder = to_nv50_kms_encoder(output);
1296                         if (!drm_encoder) {
1297                                 DRM_ERROR("No struct drm_connector to match struct nv50_output\n");
1298                                 continue;
1299                         }
1300
1301                         drm_mode_connector_attach_encoder(drm_connector, drm_encoder);
1302                 }
1303
1304                 drm_sysfs_connector_add(drm_connector);
1305         }
1306
1307         return 0;
1308 }
1309
1310 /*
1311  * Main functions
1312  */
1313
1314 int nv50_kms_init(struct drm_device *dev)
1315 {
1316         struct drm_nouveau_private *dev_priv = dev->dev_private;
1317         struct nv50_kms_priv *kms_priv = kzalloc(sizeof(struct nv50_kms_priv), GFP_KERNEL);
1318         struct nv50_display *display = NULL;
1319         int rval = 0;
1320
1321         if (!kms_priv)
1322                 return -ENOMEM;
1323
1324         dev_priv->kms_priv = kms_priv;
1325
1326         /* function pointers */
1327         /* an allocation interface that deals with the outside world, without polluting the core. */
1328         dev_priv->alloc_crtc = nv50_kms_alloc_crtc;
1329         dev_priv->alloc_output = nv50_kms_alloc_output;
1330         dev_priv->alloc_connector = nv50_kms_alloc_connector;
1331
1332         dev_priv->free_crtc = nv50_kms_free_crtc;
1333         dev_priv->free_output = nv50_kms_free_output;
1334         dev_priv->free_connector = nv50_kms_free_connector;
1335
1336         /* bios is needed for tables. */
1337         rval = nouveau_parse_bios(dev);
1338         if (rval != 0)
1339                 goto out;
1340
1341         /* init basic kernel modesetting */
1342         drm_mode_config_init(dev);
1343
1344         dev->mode_config.min_width = 0;
1345         dev->mode_config.min_height = 0;
1346
1347         dev->mode_config.funcs = (void *)&nv50_kms_mode_funcs;
1348
1349         dev->mode_config.max_width = 8192;
1350         dev->mode_config.max_height = 8192;
1351
1352         dev->mode_config.fb_base = dev_priv->fb_phys;
1353
1354         /* init kms lists */
1355         INIT_LIST_HEAD(&kms_priv->crtcs);
1356         INIT_LIST_HEAD(&kms_priv->encoders);
1357         INIT_LIST_HEAD(&kms_priv->connectors);
1358
1359         /* init the internal core, must be done first. */
1360         rval = nv50_display_create(dev);
1361         if (rval != 0)
1362                 goto out;
1363
1364         display = nv50_get_display(dev);
1365         if (!display) {
1366                 rval = -EINVAL;
1367                 goto out;
1368         }
1369
1370         /* pre-init now */
1371         rval = display->pre_init(display);
1372         if (rval != 0)
1373                 goto out;
1374
1375         /* init external layer */
1376         rval = nv50_kms_crtcs_init(dev);
1377         if (rval != 0)
1378                 goto out;
1379
1380         rval = nv50_kms_encoders_init(dev);
1381         if (rval != 0)
1382                 goto out;
1383
1384         rval = nv50_kms_connectors_init(dev);
1385         if (rval != 0)
1386                 goto out;
1387
1388         /* init now, this'll kill the textmode */
1389         rval = display->init(display);
1390         if (rval != 0)
1391                 goto out;
1392
1393         /* process cmdbuffer */
1394         display->update(display);
1395
1396         return 0;
1397
1398 out:
1399         kfree(kms_priv);
1400         dev_priv->kms_priv = NULL;
1401
1402         return rval;
1403 }
1404
1405 int nv50_kms_destroy(struct drm_device *dev)
1406 {
1407         drm_mode_config_cleanup(dev);
1408
1409         return 0;
1410 }
1411