sys/dev/drm2/drm_crtc.c

   1 /*
   2  * Copyright (c) 2006-2008 Intel Corporation
   3  * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
   4  * Copyright (c) 2008 Red Hat Inc.
   5  *
   6  * DRM core CRTC related functions
   7  *
   8  * Permission to use, copy, modify, distribute, and sell this software and its
   9  * documentation for any purpose is hereby granted without fee, provided that
  10  * the above copyright notice appear in all copies and that both that copyright
  11  * notice and this permission notice appear in supporting documentation, and
  12  * that the name of the copyright holders not be used in advertising or
  13  * publicity pertaining to distribution of the software without specific,
  14  * written prior permission.  The copyright holders make no representations
  15  * about the suitability of this software for any purpose.  It is provided "as
  16  * is" without express or implied warranty.
  17  *
  18  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  19  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  20  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  21  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  22  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  23  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  24  * OF THIS SOFTWARE.
  25  *
  26  * Authors:
  27  *      Keith Packard
  28  *      Eric Anholt <eric@anholt.net>
  29  *      Dave Airlie <airlied@linux.ie>
  30  *      Jesse Barnes <jesse.barnes@intel.com>
  31  *
  32  * $FreeBSD: src/sys/dev/drm2/drm_crtc.c,v 1.1 2012/05/22 11:07:44 kib Exp $
  33  */
  34
  35 #include <dev/drm2/drm.h>
  36 #include <dev/drm2/drmP.h>
  37 #include <dev/drm2/drm_crtc.h>
  38 #include <dev/drm2/drm_edid.h>
  39 #include <dev/drm2/drm_fourcc.h>
  40 #include <sys/limits.h>
  41
  42 /* Avoid boilerplate.  I'm tired of typing. */
  43 #define DRM_ENUM_NAME_FN(fnname, list)                          \
  44         char *fnname(int val)                                   \
  45         {                                                       \
  46                 int i;                                          \
  47                 for (i = 0; i < DRM_ARRAY_SIZE(list); i++) {    \
  48                         if (list[i].type == val)                \
  49                                 return list[i].name;            \
  50                 }                                               \
  51                 return "(unknown)";                             \
  52         }
  53
  54 /*
  55  * Global properties
  56  */
  57 static struct drm_prop_enum_list drm_dpms_enum_list[] =
  58 {       { DRM_MODE_DPMS_ON, "On" },
  59         { DRM_MODE_DPMS_STANDBY, "Standby" },
  60         { DRM_MODE_DPMS_SUSPEND, "Suspend" },
  61         { DRM_MODE_DPMS_OFF, "Off" }
  62 };
  63
  64 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
  65
  66 /*
  67  * Optional properties
  68  */
  69 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
  70 {
  71         { DRM_MODE_SCALE_NONE, "None" },
  72         { DRM_MODE_SCALE_FULLSCREEN, "Full" },
  73         { DRM_MODE_SCALE_CENTER, "Center" },
  74         { DRM_MODE_SCALE_ASPECT, "Full aspect" },
  75 };
  76
  77 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
  78 {
  79         { DRM_MODE_DITHERING_OFF, "Off" },
  80         { DRM_MODE_DITHERING_ON, "On" },
  81         { DRM_MODE_DITHERING_AUTO, "Automatic" },
  82 };
  83
  84 /*
  85  * Non-global properties, but "required" for certain connectors.
  86  */
  87 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
  88 {
  89         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
  90         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
  91         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
  92 };
  93
  94 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
  95
  96 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
  97 {
  98         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
  99         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
 100         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
 101 };
 102
 103 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
 104                  drm_dvi_i_subconnector_enum_list)
 105
 106 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
 107 {
 108         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
 109         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 110         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 111         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 112         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
 113 };
 114
 115 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
 116
 117 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
 118 {
 119         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
 120         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 121         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 122         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 123         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
 124 };
 125
 126 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
 127                  drm_tv_subconnector_enum_list)
 128
 129 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
 130         { DRM_MODE_DIRTY_OFF,      "Off"      },
 131         { DRM_MODE_DIRTY_ON,       "On"       },
 132         { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
 133 };
 134
 135 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
 136                  drm_dirty_info_enum_list)
 137
 138 struct drm_conn_prop_enum_list {
 139         int type;
 140         char *name;
 141         int count;
 142 };
 143
 144 /*
 145  * Connector and encoder types.
 146  */
 147 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
 148 {       { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
 149         { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
 150         { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
 151         { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
 152         { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
 153         { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
 154         { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
 155         { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
 156         { DRM_MODE_CONNECTOR_Component, "Component", 0 },
 157         { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
 158         { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
 159         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
 160         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
 161         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
 162         { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
 163 };
 164
 165 static struct drm_prop_enum_list drm_encoder_enum_list[] =
 166 {       { DRM_MODE_ENCODER_NONE, "None" },
 167         { DRM_MODE_ENCODER_DAC, "DAC" },
 168         { DRM_MODE_ENCODER_TMDS, "TMDS" },
 169         { DRM_MODE_ENCODER_LVDS, "LVDS" },
 170         { DRM_MODE_ENCODER_TVDAC, "TV" },
 171 };
 172
 173 char *drm_get_encoder_name(struct drm_encoder *encoder)
 174 {
 175         static char buf[32];
 176
 177         ksnprintf(buf, 32, "%s-%d",
 178                  drm_encoder_enum_list[encoder->encoder_type].name,
 179                  encoder->base.id);
 180         return buf;
 181 }
 182
 183 char *drm_get_connector_name(struct drm_connector *connector)
 184 {
 185         static char buf[32];
 186
 187         ksnprintf(buf, 32, "%s-%d",
 188                  drm_connector_enum_list[connector->connector_type].name,
 189                  connector->connector_type_id);
 190         return buf;
 191 }
 192
 193 char *drm_get_connector_status_name(enum drm_connector_status status)
 194 {
 195         if (status == connector_status_connected)
 196                 return "connected";
 197         else if (status == connector_status_disconnected)
 198                 return "disconnected";
 199         else
 200                 return "unknown";
 201 }
 202
 203 /**
 204  * drm_mode_object_get - allocate a new identifier
 205  * @dev: DRM device
 206  * @ptr: object pointer, used to generate unique ID
 207  * @type: object type
 208  *
 209  * LOCKING:
 210  *
 211  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 212  * for tracking modes, CRTCs and connectors.
 213  *
 214  * RETURNS:
 215  * New unique (relative to other objects in @dev) integer identifier for the
 216  * object.
 217  */
 218 static int drm_mode_object_get(struct drm_device *dev,
 219                                struct drm_mode_object *obj, uint32_t obj_type)
 220 {
 221         int new_id;
 222         int ret;
 223
 224         new_id = 0;
 225         ret = drm_gem_name_create(&dev->mode_config.crtc_names, obj, &new_id);
 226         if (ret != 0)
 227                 return (ret);
 228
 229         obj->id = new_id;
 230         obj->type = obj_type;
 231         return 0;
 232 }
 233
 234 /**
 235  * drm_mode_object_put - free an identifer
 236  * @dev: DRM device
 237  * @id: ID to free
 238  *
 239  * LOCKING:
 240  * Caller must hold DRM mode_config lock.
 241  *
 242  * Free @id from @dev's unique identifier pool.
 243  */
 244 static void drm_mode_object_put(struct drm_device *dev,
 245                                 struct drm_mode_object *object)
 246 {
 247
 248         drm_gem_names_remove(&dev->mode_config.crtc_names, object->id);
 249 }
 250
 251 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 252                 uint32_t id, uint32_t type)
 253 {
 254         struct drm_mode_object *obj;
 255
 256         obj = drm_gem_name_ref(&dev->mode_config.crtc_names, id, NULL);
 257         if (!obj || (obj->type != type) || (obj->id != id))
 258                 obj = NULL;
 259
 260         return obj;
 261 }
 262
 263 /**
 264  * drm_framebuffer_init - initialize a framebuffer
 265  * @dev: DRM device
 266  *
 267  * LOCKING:
 268  * Caller must hold mode config lock.
 269  *
 270  * Allocates an ID for the framebuffer's parent mode object, sets its mode
 271  * functions & device file and adds it to the master fd list.
 272  *
 273  * RETURNS:
 274  * Zero on success, error code on failure.
 275  */
 276 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 277                          const struct drm_framebuffer_funcs *funcs)
 278 {
 279         int ret;
 280
 281         DRM_MODE_CONFIG_ASSERT_LOCKED(dev);
 282
 283         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
 284         if (ret)
 285                 return ret;
 286
 287         fb->dev = dev;
 288         fb->funcs = funcs;
 289         dev->mode_config.num_fb++;
 290         list_add(&fb->head, &dev->mode_config.fb_list);
 291
 292         return 0;
 293 }
 294
 295 /**
 296  * drm_framebuffer_cleanup - remove a framebuffer object
 297  * @fb: framebuffer to remove
 298  *
 299  * LOCKING:
 300  * Caller must hold mode config lock.
 301  *
 302  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 303  * it, setting it to NULL.
 304  */
 305 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 306 {
 307         struct drm_device *dev = fb->dev;
 308         struct drm_crtc *crtc;
 309         struct drm_plane *plane;
 310         struct drm_mode_set set;
 311         int ret;
 312
 313         DRM_MODE_CONFIG_ASSERT_LOCKED(dev);
 314
 315         /* remove from any CRTC */
 316         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 317                 if (crtc->fb == fb) {
 318                         /* should turn off the crtc */
 319                         memset(&set, 0, sizeof(struct drm_mode_set));
 320                         set.crtc = crtc;
 321                         set.fb = NULL;
 322                         ret = crtc->funcs->set_config(&set);
 323                         if (ret)
 324                                 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
 325                 }
 326         }
 327
 328         list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
 329                 if (plane->fb == fb) {
 330                         /* should turn off the crtc */
 331                         ret = plane->funcs->disable_plane(plane);
 332                         if (ret)
 333                                 DRM_ERROR("failed to disable plane with busy fb\n");
 334                         /* disconnect the plane from the fb and crtc: */
 335                         plane->fb = NULL;
 336                         plane->crtc = NULL;
 337                 }
 338         }
 339
 340         drm_mode_object_put(dev, &fb->base);
 341         list_del(&fb->head);
 342         dev->mode_config.num_fb--;
 343 }
 344
 345 /**
 346  * drm_crtc_init - Initialise a new CRTC object
 347  * @dev: DRM device
 348  * @crtc: CRTC object to init
 349  * @funcs: callbacks for the new CRTC
 350  *
 351  * LOCKING:
 352  * Caller must hold mode config lock.
 353  *
 354  * Inits a new object created as base part of an driver crtc object.
 355  *
 356  * RETURNS:
 357  * Zero on success, error code on failure.
 358  */
 359 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 360                    const struct drm_crtc_funcs *funcs)
 361 {
 362         int ret;
 363
 364         crtc->dev = dev;
 365         crtc->funcs = funcs;
 366
 367         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 368         ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
 369         if (ret)
 370                 goto out;
 371
 372         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
 373         dev->mode_config.num_crtc++;
 374 out:
 375         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 376
 377         return ret;
 378 }
 379
 380 /**
 381  * drm_crtc_cleanup - Cleans up the core crtc usage.
 382  * @crtc: CRTC to cleanup
 383  *
 384  * LOCKING:
 385  * Caller must hold mode config lock.
 386  *
 387  * Cleanup @crtc. Removes from drm modesetting space
 388  * does NOT free object, caller does that.
 389  */
 390 void drm_crtc_cleanup(struct drm_crtc *crtc)
 391 {
 392         struct drm_device *dev = crtc->dev;
 393
 394         DRM_MODE_CONFIG_ASSERT_LOCKED(dev);
 395
 396         if (crtc->gamma_store) {
 397                 drm_free(crtc->gamma_store, DRM_MEM_KMS);
 398                 crtc->gamma_store = NULL;
 399         }
 400
 401         drm_mode_object_put(dev, &crtc->base);
 402         list_del(&crtc->head);
 403         dev->mode_config.num_crtc--;
 404 }
 405
 406 /**
 407  * drm_mode_probed_add - add a mode to a connector's probed mode list
 408  * @connector: connector the new mode
 409  * @mode: mode data
 410  *
 411  * LOCKING:
 412  * Caller must hold mode config lock.
 413  *
 414  * Add @mode to @connector's mode list for later use.
 415  */
 416 void drm_mode_probed_add(struct drm_connector *connector,
 417                          struct drm_display_mode *mode)
 418 {
 419
 420         DRM_MODE_CONFIG_ASSERT_LOCKED(connector->dev);
 421
 422         list_add(&mode->head, &connector->probed_modes);
 423 }
 424
 425 /**
 426  * drm_mode_remove - remove and free a mode
 427  * @connector: connector list to modify
 428  * @mode: mode to remove
 429  *
 430  * LOCKING:
 431  * Caller must hold mode config lock.
 432  *
 433  * Remove @mode from @connector's mode list, then free it.
 434  */
 435 void drm_mode_remove(struct drm_connector *connector,
 436                      struct drm_display_mode *mode)
 437 {
 438
 439         DRM_MODE_CONFIG_ASSERT_LOCKED(connector->dev);
 440
 441         list_del(&mode->head);
 442         drm_mode_destroy(connector->dev, mode);
 443 }
 444
 445 /**
 446  * drm_connector_init - Init a preallocated connector
 447  * @dev: DRM device
 448  * @connector: the connector to init
 449  * @funcs: callbacks for this connector
 450  * @name: user visible name of the connector
 451  *
 452  * LOCKING:
 453  * Takes mode config lock.
 454  *
 455  * Initialises a preallocated connector. Connectors should be
 456  * subclassed as part of driver connector objects.
 457  *
 458  * RETURNS:
 459  * Zero on success, error code on failure.
 460  */
 461 int drm_connector_init(struct drm_device *dev,
 462                        struct drm_connector *connector,
 463                        const struct drm_connector_funcs *funcs,
 464                        int connector_type)
 465 {
 466         int ret;
 467
 468         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 469
 470         ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
 471         if (ret)
 472                 goto out;
 473
 474         connector->dev = dev;
 475         connector->funcs = funcs;
 476         connector->connector_type = connector_type;
 477         connector->connector_type_id =
 478                 ++drm_connector_enum_list[connector_type].count; /* TODO */
 479         INIT_LIST_HEAD(&connector->user_modes);
 480         INIT_LIST_HEAD(&connector->probed_modes);
 481         INIT_LIST_HEAD(&connector->modes);
 482         connector->edid_blob_ptr = NULL;
 483
 484         list_add_tail(&connector->head, &dev->mode_config.connector_list);
 485         dev->mode_config.num_connector++;
 486
 487         drm_connector_attach_property(connector,
 488                                       dev->mode_config.edid_property, 0);
 489
 490         drm_connector_attach_property(connector,
 491                                       dev->mode_config.dpms_property, 0);
 492
 493 out:
 494         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 495
 496         return ret;
 497 }
 498
 499 /**
 500  * drm_connector_cleanup - cleans up an initialised connector
 501  * @connector: connector to cleanup
 502  *
 503  * LOCKING:
 504  * Takes mode config lock.
 505  *
 506  * Cleans up the connector but doesn't free the object.
 507  */
 508 void drm_connector_cleanup(struct drm_connector *connector)
 509 {
 510         struct drm_device *dev = connector->dev;
 511         struct drm_display_mode *mode, *t;
 512
 513         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
 514                 drm_mode_remove(connector, mode);
 515
 516         list_for_each_entry_safe(mode, t, &connector->modes, head)
 517                 drm_mode_remove(connector, mode);
 518
 519         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
 520                 drm_mode_remove(connector, mode);
 521
 522         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 523         drm_mode_object_put(dev, &connector->base);
 524         list_del(&connector->head);
 525         dev->mode_config.num_connector--;
 526         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 527 }
 528
 529 int drm_encoder_init(struct drm_device *dev,
 530                      struct drm_encoder *encoder,
 531                      const struct drm_encoder_funcs *funcs,
 532                      int encoder_type)
 533 {
 534         int ret;
 535
 536         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 537
 538         ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
 539         if (ret)
 540                 goto out;
 541
 542         encoder->dev = dev;
 543         encoder->encoder_type = encoder_type;
 544         encoder->funcs = funcs;
 545
 546         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
 547         dev->mode_config.num_encoder++;
 548
 549 out:
 550         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 551
 552         return ret;
 553 }
 554
 555 void drm_encoder_cleanup(struct drm_encoder *encoder)
 556 {
 557         struct drm_device *dev = encoder->dev;
 558
 559         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 560         drm_mode_object_put(dev, &encoder->base);
 561         list_del(&encoder->head);
 562         dev->mode_config.num_encoder--;
 563         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 564 }
 565
 566 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
 567                    unsigned long possible_crtcs,
 568                    const struct drm_plane_funcs *funcs,
 569                    const uint32_t *formats, uint32_t format_count,
 570                    bool priv)
 571 {
 572         int ret;
 573
 574         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 575
 576         ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
 577         if (ret)
 578                 goto out;
 579
 580         plane->dev = dev;
 581         plane->funcs = funcs;
 582         plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
 583             DRM_MEM_KMS, M_WAITOK);
 584
 585         memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
 586         plane->format_count = format_count;
 587         plane->possible_crtcs = possible_crtcs;
 588
 589         /* private planes are not exposed to userspace, but depending on
 590          * display hardware, might be convenient to allow sharing programming
 591          * for the scanout engine with the crtc implementation.
 592          */
 593         if (!priv) {
 594                 list_add_tail(&plane->head, &dev->mode_config.plane_list);
 595                 dev->mode_config.num_plane++;
 596         } else {
 597                 INIT_LIST_HEAD(&plane->head);
 598         }
 599
 600 out:
 601         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 602
 603         return ret;
 604 }
 605
 606 void drm_plane_cleanup(struct drm_plane *plane)
 607 {
 608         struct drm_device *dev = plane->dev;
 609
 610         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 611         drm_free(plane->format_types, DRM_MEM_KMS);
 612         drm_mode_object_put(dev, &plane->base);
 613         /* if not added to a list, it must be a private plane */
 614         if (!list_empty(&plane->head)) {
 615                 list_del(&plane->head);
 616                 dev->mode_config.num_plane--;
 617         }
 618         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 619 }
 620
 621 /**
 622  * drm_mode_create - create a new display mode
 623  * @dev: DRM device
 624  *
 625  * LOCKING:
 626  * Caller must hold DRM mode_config lock.
 627  *
 628  * Create a new drm_display_mode, give it an ID, and return it.
 629  *
 630  * RETURNS:
 631  * Pointer to new mode on success, NULL on error.
 632  */
 633 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
 634 {
 635         struct drm_display_mode *nmode;
 636
 637         nmode = kmalloc(sizeof(struct drm_display_mode), DRM_MEM_KMS,
 638             M_WAITOK | M_ZERO);
 639
 640         if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
 641                 drm_free(nmode, DRM_MEM_KMS);
 642                 return (NULL);
 643         }
 644         return nmode;
 645 }
 646
 647 /**
 648  * drm_mode_destroy - remove a mode
 649  * @dev: DRM device
 650  * @mode: mode to remove
 651  *
 652  * LOCKING:
 653  * Caller must hold mode config lock.
 654  *
 655  * Free @mode's unique identifier, then free it.
 656  */
 657 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
 658 {
 659         if (!mode)
 660                 return;
 661
 662         drm_mode_object_put(dev, &mode->base);
 663
 664         drm_free(mode, DRM_MEM_KMS);
 665 }
 666
 667 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
 668 {
 669         struct drm_property *edid;
 670         struct drm_property *dpms;
 671
 672         /*
 673          * Standard properties (apply to all connectors)
 674          */
 675         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
 676                                    DRM_MODE_PROP_IMMUTABLE,
 677                                    "EDID", 0);
 678         dev->mode_config.edid_property = edid;
 679
 680         dpms = drm_property_create_enum(dev, 0,
 681                                    "DPMS", drm_dpms_enum_list,
 682                                     DRM_ARRAY_SIZE(drm_dpms_enum_list));
 683         dev->mode_config.dpms_property = dpms;
 684
 685         return 0;
 686 }
 687
 688 /**
 689  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 690  * @dev: DRM device
 691  *
 692  * Called by a driver the first time a DVI-I connector is made.
 693  */
 694 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
 695 {
 696         struct drm_property *dvi_i_selector;
 697         struct drm_property *dvi_i_subconnector;
 698
 699         if (dev->mode_config.dvi_i_select_subconnector_property)
 700                 return 0;
 701
 702         dvi_i_selector =
 703                 drm_property_create_enum(dev, 0,
 704                                     "select subconnector",
 705                                     drm_dvi_i_select_enum_list,
 706                                     DRM_ARRAY_SIZE(drm_dvi_i_select_enum_list));
 707         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
 708
 709         dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
 710                                     "subconnector",
 711                                     drm_dvi_i_subconnector_enum_list,
 712                                     DRM_ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
 713         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
 714
 715         return 0;
 716 }
 717
 718 /**
 719  * drm_create_tv_properties - create TV specific connector properties
 720  * @dev: DRM device
 721  * @num_modes: number of different TV formats (modes) supported
 722  * @modes: array of pointers to strings containing name of each format
 723  *
 724  * Called by a driver's TV initialization routine, this function creates
 725  * the TV specific connector properties for a given device.  Caller is
 726  * responsible for allocating a list of format names and passing them to
 727  * this routine.
 728  */
 729 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
 730                                   char *modes[])
 731 {
 732         struct drm_property *tv_selector;
 733         struct drm_property *tv_subconnector;
 734         int i;
 735
 736         if (dev->mode_config.tv_select_subconnector_property)
 737                 return 0;
 738
 739         /*
 740          * Basic connector properties
 741          */
 742         tv_selector = drm_property_create_enum(dev, 0,
 743                                           "select subconnector",
 744                                           drm_tv_select_enum_list,
 745                                           DRM_ARRAY_SIZE(drm_tv_select_enum_list));
 746         dev->mode_config.tv_select_subconnector_property = tv_selector;
 747
 748         tv_subconnector =
 749                 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
 750                                     "subconnector",
 751                                     drm_tv_subconnector_enum_list,
 752                                     DRM_ARRAY_SIZE(drm_tv_subconnector_enum_list));
 753         dev->mode_config.tv_subconnector_property = tv_subconnector;
 754
 755         /*
 756          * Other, TV specific properties: margins & TV modes.
 757          */
 758         dev->mode_config.tv_left_margin_property =
 759                 drm_property_create_range(dev, 0, "left margin", 0, 100);
 760
 761         dev->mode_config.tv_right_margin_property =
 762                 drm_property_create_range(dev, 0, "right margin", 0, 100);
 763
 764         dev->mode_config.tv_top_margin_property =
 765                 drm_property_create_range(dev, 0, "top margin", 0, 100);
 766
 767         dev->mode_config.tv_bottom_margin_property =
 768                 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
 769
 770         dev->mode_config.tv_mode_property =
 771                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 772                                     "mode", num_modes);
 773         for (i = 0; i < num_modes; i++)
 774                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
 775                                       i, modes[i]);
 776
 777         dev->mode_config.tv_brightness_property =
 778                 drm_property_create_range(dev, 0, "brightness", 0, 100);
 779
 780         dev->mode_config.tv_contrast_property =
 781                 drm_property_create_range(dev, 0, "contrast", 0, 100);
 782
 783         dev->mode_config.tv_flicker_reduction_property =
 784                 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
 785
 786         dev->mode_config.tv_overscan_property =
 787                 drm_property_create_range(dev, 0, "overscan", 0, 100);
 788
 789         dev->mode_config.tv_saturation_property =
 790                 drm_property_create_range(dev, 0, "saturation", 0, 100);
 791
 792         dev->mode_config.tv_hue_property =
 793                 drm_property_create_range(dev, 0, "hue", 0, 100);
 794
 795         return 0;
 796 }
 797
 798 /**
 799  * drm_mode_create_scaling_mode_property - create scaling mode property
 800  * @dev: DRM device
 801  *
 802  * Called by a driver the first time it's needed, must be attached to desired
 803  * connectors.
 804  */
 805 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 806 {
 807         struct drm_property *scaling_mode;
 808
 809         if (dev->mode_config.scaling_mode_property)
 810                 return 0;
 811
 812         scaling_mode =
 813                 drm_property_create_enum(dev, 0, "scaling mode",
 814                                 drm_scaling_mode_enum_list,
 815                                     DRM_ARRAY_SIZE(drm_scaling_mode_enum_list));
 816
 817         dev->mode_config.scaling_mode_property = scaling_mode;
 818
 819         return 0;
 820 }
 821
 822 /**
 823  * drm_mode_create_dithering_property - create dithering property
 824  * @dev: DRM device
 825  *
 826  * Called by a driver the first time it's needed, must be attached to desired
 827  * connectors.
 828  */
 829 int drm_mode_create_dithering_property(struct drm_device *dev)
 830 {
 831         struct drm_property *dithering_mode;
 832
 833         if (dev->mode_config.dithering_mode_property)
 834                 return 0;
 835
 836         dithering_mode =
 837                 drm_property_create_enum(dev, 0, "dithering",
 838                                 drm_dithering_mode_enum_list,
 839                                     DRM_ARRAY_SIZE(drm_dithering_mode_enum_list));
 840         dev->mode_config.dithering_mode_property = dithering_mode;
 841
 842         return 0;
 843 }
 844
 845 /**
 846  * drm_mode_create_dirty_property - create dirty property
 847  * @dev: DRM device
 848  *
 849  * Called by a driver the first time it's needed, must be attached to desired
 850  * connectors.
 851  */
 852 int drm_mode_create_dirty_info_property(struct drm_device *dev)
 853 {
 854         struct drm_property *dirty_info;
 855
 856         if (dev->mode_config.dirty_info_property)
 857                 return 0;
 858
 859         dirty_info =
 860                 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
 861                                     "dirty",
 862                                     drm_dirty_info_enum_list,
 863                                     DRM_ARRAY_SIZE(drm_dirty_info_enum_list));
 864         dev->mode_config.dirty_info_property = dirty_info;
 865
 866         return 0;
 867 }
 868
 869 /**
 870  * drm_mode_config_init - initialize DRM mode_configuration structure
 871  * @dev: DRM device
 872  *
 873  * LOCKING:
 874  * None, should happen single threaded at init time.
 875  *
 876  * Initialize @dev's mode_config structure, used for tracking the graphics
 877  * configuration of @dev.
 878  */
 879 void drm_mode_config_init(struct drm_device *dev)
 880 {
 881         lockinit(&dev->mode_config.lock, "kmslk", 0, LK_CANRECURSE);
 882         INIT_LIST_HEAD(&dev->mode_config.fb_list);
 883         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
 884         INIT_LIST_HEAD(&dev->mode_config.connector_list);
 885         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 886         INIT_LIST_HEAD(&dev->mode_config.property_list);
 887         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
 888         INIT_LIST_HEAD(&dev->mode_config.plane_list);
 889         drm_gem_names_init(&dev->mode_config.crtc_names);
 890
 891         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
 892         drm_mode_create_standard_connector_properties(dev);
 893         lockmgr(&dev->mode_config.lock, LK_RELEASE);
 894
 895         /* Just to be sure */
 896         dev->mode_config.num_fb = 0;
 897         dev->mode_config.num_connector = 0;
 898         dev->mode_config.num_crtc = 0;
 899         dev->mode_config.num_encoder = 0;
 900 }
 901
 902 static int
 903 drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
 904 {
 905         uint32_t total_objects = 0;
 906
 907         total_objects += dev->mode_config.num_crtc;
 908         total_objects += dev->mode_config.num_connector;
 909         total_objects += dev->mode_config.num_encoder;
 910
 911         group->id_list = kmalloc(total_objects * sizeof(uint32_t),
 912             DRM_MEM_KMS, M_WAITOK | M_ZERO);
 913
 914         group->num_crtcs = 0;
 915         group->num_connectors = 0;
 916         group->num_encoders = 0;
 917         return 0;
 918 }
 919
 920 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 921                                      struct drm_mode_group *group)
 922 {
 923         struct drm_crtc *crtc;
 924         struct drm_encoder *encoder;
 925         struct drm_connector *connector;
 926         int ret;
 927
 928         if ((ret = drm_mode_group_init(dev, group)))
 929                 return ret;
 930
 931         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 932                 group->id_list[group->num_crtcs++] = crtc->base.id;
 933
 934         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 935                 group->id_list[group->num_crtcs + group->num_encoders++] =
 936                 encoder->base.id;
 937
 938         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 939                 group->id_list[group->num_crtcs + group->num_encoders +
 940                                group->num_connectors++] = connector->base.id;
 941
 942         return 0;
 943 }
 944
 945 /**
 946  * drm_mode_config_cleanup - free up DRM mode_config info
 947  * @dev: DRM device
 948  *
 949  * LOCKING:
 950  * Caller must hold mode config lock.
 951  *
 952  * Free up all the connectors and CRTCs associated with this DRM device, then
 953  * free up the framebuffers and associated buffer objects.
 954  *
 955  * FIXME: cleanup any dangling user buffer objects too
 956  */
 957 void drm_mode_config_cleanup(struct drm_device *dev)
 958 {
 959         struct drm_connector *connector, *ot;
 960         struct drm_crtc *crtc, *ct;
 961         struct drm_encoder *encoder, *enct;
 962         struct drm_framebuffer *fb, *fbt;
 963         struct drm_property *property, *pt;
 964         struct drm_plane *plane, *plt;
 965
 966         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
 967                                  head) {
 968                 encoder->funcs->destroy(encoder);
 969         }
 970
 971         list_for_each_entry_safe(connector, ot,
 972                                  &dev->mode_config.connector_list, head) {
 973                 connector->funcs->destroy(connector);
 974         }
 975
 976         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
 977                                  head) {
 978                 drm_property_destroy(dev, property);
 979         }
 980
 981         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
 982                 fb->funcs->destroy(fb);
 983         }
 984
 985         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
 986                 crtc->funcs->destroy(crtc);
 987         }
 988
 989         list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
 990                                  head) {
 991                 plane->funcs->destroy(plane);
 992         }
 993         drm_gem_names_fini(&dev->mode_config.crtc_names);
 994 }
 995
 996 /**
 997  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
 998  * @out: drm_mode_modeinfo struct to return to the user
 999  * @in: drm_display_mode to use
1000  *
1001  * LOCKING:
1002  * None.
1003  *
1004  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1005  * the user.
1006  */
1007 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1008                                       const struct drm_display_mode *in)
1009 {
1010         if (in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1011             in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1012             in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1013             in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1014             in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX)
1015                 kprintf("timing values too large for mode info\n");
1016
1017         out->clock = in->clock;
1018         out->hdisplay = in->hdisplay;
1019         out->hsync_start = in->hsync_start;
1020         out->hsync_end = in->hsync_end;
1021         out->htotal = in->htotal;
1022         out->hskew = in->hskew;
1023         out->vdisplay = in->vdisplay;
1024         out->vsync_start = in->vsync_start;
1025         out->vsync_end = in->vsync_end;
1026         out->vtotal = in->vtotal;
1027         out->vscan = in->vscan;
1028         out->vrefresh = in->vrefresh;
1029         out->flags = in->flags;
1030         out->type = in->type;
1031         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1032         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1033 }
1034
1035 /**
1036  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1037  * @out: drm_display_mode to return to the user
1038  * @in: drm_mode_modeinfo to use
1039  *
1040  * LOCKING:
1041  * None.
1042  *
1043  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1044  * the caller.
1045  *
1046  * RETURNS:
1047  * Zero on success, errno on failure.
1048  */
1049 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1050                                   const struct drm_mode_modeinfo *in)
1051 {
1052         if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1053                 return ERANGE;
1054
1055         out->clock = in->clock;
1056         out->hdisplay = in->hdisplay;
1057         out->hsync_start = in->hsync_start;
1058         out->hsync_end = in->hsync_end;
1059         out->htotal = in->htotal;
1060         out->hskew = in->hskew;
1061         out->vdisplay = in->vdisplay;
1062         out->vsync_start = in->vsync_start;
1063         out->vsync_end = in->vsync_end;
1064         out->vtotal = in->vtotal;
1065         out->vscan = in->vscan;
1066         out->vrefresh = in->vrefresh;
1067         out->flags = in->flags;
1068         out->type = in->type;
1069         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1070         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1071
1072         return 0;
1073 }
1074
1075 /**
1076  * drm_mode_getresources - get graphics configuration
1077  * @inode: inode from the ioctl
1078  * @filp: file * from the ioctl
1079  * @cmd: cmd from ioctl
1080  * @arg: arg from ioctl
1081  *
1082  * LOCKING:
1083  * Takes mode config lock.
1084  *
1085  * Construct a set of configuration description structures and return
1086  * them to the user, including CRTC, connector and framebuffer configuration.
1087  *
1088  * Called by the user via ioctl.
1089  *
1090  * RETURNS:
1091  * Zero on success, errno on failure.
1092  */
1093 int drm_mode_getresources(struct drm_device *dev, void *data,
1094                           struct drm_file *file_priv)
1095 {
1096         struct drm_mode_card_res *card_res = data;
1097         struct list_head *lh;
1098         struct drm_framebuffer *fb;
1099         struct drm_connector *connector;
1100         struct drm_crtc *crtc;
1101         struct drm_encoder *encoder;
1102         int ret = 0;
1103         int connector_count = 0;
1104         int crtc_count = 0;
1105         int fb_count = 0;
1106         int encoder_count = 0;
1107         int copied = 0, i;
1108         uint32_t __user *fb_id;
1109         uint32_t __user *crtc_id;
1110         uint32_t __user *connector_id;
1111         uint32_t __user *encoder_id;
1112         struct drm_mode_group *mode_group;
1113
1114         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1115                 return (EINVAL);
1116
1117         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1118
1119         /*
1120          * For the non-control nodes we need to limit the list of resources
1121          * by IDs in the group list for this node
1122          */
1123         list_for_each(lh, &file_priv->fbs)
1124                 fb_count++;
1125
1126 #if 1
1127         mode_group = NULL; /* XXXKIB */
1128         if (1 || file_priv->master) {
1129 #else
1130         mode_group = &file_priv->masterp->minor->mode_group;
1131         if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1132 #endif
1133
1134                 list_for_each(lh, &dev->mode_config.crtc_list)
1135                         crtc_count++;
1136
1137                 list_for_each(lh, &dev->mode_config.connector_list)
1138                         connector_count++;
1139
1140                 list_for_each(lh, &dev->mode_config.encoder_list)
1141                         encoder_count++;
1142         } else {
1143
1144                 crtc_count = mode_group->num_crtcs;
1145                 connector_count = mode_group->num_connectors;
1146                 encoder_count = mode_group->num_encoders;
1147         }
1148
1149         card_res->max_height = dev->mode_config.max_height;
1150         card_res->min_height = dev->mode_config.min_height;
1151         card_res->max_width = dev->mode_config.max_width;
1152         card_res->min_width = dev->mode_config.min_width;
1153
1154         /* handle this in 4 parts */
1155         /* FBs */
1156         if (card_res->count_fbs >= fb_count) {
1157                 copied = 0;
1158                 fb_id = (uint32_t *)(uintptr_t)card_res->fb_id_ptr;
1159                 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1160                         if (copyout(&fb->base.id, fb_id + copied,
1161                             sizeof(uint32_t))) {
1162                                 ret = EFAULT;
1163                                 goto out;
1164                         }
1165                         copied++;
1166                 }
1167         }
1168         card_res->count_fbs = fb_count;
1169
1170         /* CRTCs */
1171         if (card_res->count_crtcs >= crtc_count) {
1172                 copied = 0;
1173                 crtc_id = (uint32_t *)(uintptr_t)card_res->crtc_id_ptr;
1174 #if 1
1175                 if (1 || file_priv->master) {
1176 #else
1177                 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1178 #endif
1179                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1180                                             head) {
1181                                 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1182                                 if (copyout(&crtc->base.id, crtc_id +
1183                                     copied, sizeof(uint32_t))) {
1184                                         ret = EFAULT;
1185                                         goto out;
1186                                 }
1187                                 copied++;
1188                         }
1189                 } else {
1190                         for (i = 0; i < mode_group->num_crtcs; i++) {
1191                                 if (copyout(&mode_group->id_list[i],
1192                                     crtc_id + copied, sizeof(uint32_t))) {
1193                                         ret = EFAULT;
1194                                         goto out;
1195                                 }
1196                                 copied++;
1197                         }
1198                 }
1199         }
1200         card_res->count_crtcs = crtc_count;
1201
1202         /* Encoders */
1203         if (card_res->count_encoders >= encoder_count) {
1204                 copied = 0;
1205                 encoder_id = (uint32_t *)(uintptr_t)card_res->encoder_id_ptr;
1206 #if 1
1207                 if (file_priv->master) {
1208 #else
1209                 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1210 #endif
1211                         list_for_each_entry(encoder,
1212                                             &dev->mode_config.encoder_list,
1213                                             head) {
1214                                 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1215                                                 drm_get_encoder_name(encoder));
1216                                 if (copyout(&encoder->base.id, encoder_id +
1217                                     copied, sizeof(uint32_t))) {
1218                                         ret = EFAULT;
1219                                         goto out;
1220                                 }
1221                                 copied++;
1222                         }
1223                 } else {
1224                         for (i = mode_group->num_crtcs;
1225                             i < mode_group->num_crtcs + mode_group->num_encoders;
1226                              i++) {
1227                                 if (copyout(&mode_group->id_list[i],
1228                                     encoder_id + copied, sizeof(uint32_t))) {
1229                                         ret = EFAULT;
1230                                         goto out;
1231                                 }
1232                                 copied++;
1233                         }
1234
1235                 }
1236         }
1237         card_res->count_encoders = encoder_count;
1238
1239         /* Connectors */
1240         if (card_res->count_connectors >= connector_count) {
1241                 copied = 0;
1242                 connector_id = (uint32_t *)(uintptr_t)card_res->connector_id_ptr;
1243 #if 1
1244                 if (file_priv->master) {
1245 #else
1246                 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1247 #endif
1248                         list_for_each_entry(connector,
1249                                             &dev->mode_config.connector_list,
1250                                             head) {
1251                                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1252                                         connector->base.id,
1253                                         drm_get_connector_name(connector));
1254                                 if (copyout(&connector->base.id,
1255                                     connector_id + copied, sizeof(uint32_t))) {
1256                                         ret = EFAULT;
1257                                         goto out;
1258                                 }
1259                                 copied++;
1260                         }
1261                 } else {
1262                         int start = mode_group->num_crtcs +
1263                                 mode_group->num_encoders;
1264                         for (i = start; i < start + mode_group->num_connectors; i++) {
1265                                 if (copyout(&mode_group->id_list[i],
1266                                     connector_id + copied, sizeof(uint32_t))) {
1267                                         ret = EFAULT;
1268                                         goto out;
1269                                 }
1270                                 copied++;
1271                         }
1272                 }
1273         }
1274         card_res->count_connectors = connector_count;
1275
1276         DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1277                   card_res->count_connectors, card_res->count_encoders);
1278
1279 out:
1280         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1281         return ret;
1282 }
1283
1284 /**
1285  * drm_mode_getcrtc - get CRTC configuration
1286  * @inode: inode from the ioctl
1287  * @filp: file * from the ioctl
1288  * @cmd: cmd from ioctl
1289  * @arg: arg from ioctl
1290  *
1291  * LOCKING:
1292  * Takes mode config lock.
1293  *
1294  * Construct a CRTC configuration structure to return to the user.
1295  *
1296  * Called by the user via ioctl.
1297  *
1298  * RETURNS:
1299  * Zero on success, errno on failure.
1300  */
1301 int drm_mode_getcrtc(struct drm_device *dev,
1302                      void *data, struct drm_file *file_priv)
1303 {
1304         struct drm_mode_crtc *crtc_resp = data;
1305         struct drm_crtc *crtc;
1306         struct drm_mode_object *obj;
1307         int ret = 0;
1308
1309         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1310                 return (EINVAL);
1311
1312         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1313
1314         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1315                                    DRM_MODE_OBJECT_CRTC);
1316         if (!obj) {
1317                 ret = (EINVAL);
1318                 goto out;
1319         }
1320         crtc = obj_to_crtc(obj);
1321
1322         crtc_resp->x = crtc->x;
1323         crtc_resp->y = crtc->y;
1324         crtc_resp->gamma_size = crtc->gamma_size;
1325         if (crtc->fb)
1326                 crtc_resp->fb_id = crtc->fb->base.id;
1327         else
1328                 crtc_resp->fb_id = 0;
1329
1330         if (crtc->enabled) {
1331
1332                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1333                 crtc_resp->mode_valid = 1;
1334
1335         } else {
1336                 crtc_resp->mode_valid = 0;
1337         }
1338
1339 out:
1340         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1341         return ret;
1342 }
1343
1344 /**
1345  * drm_mode_getconnector - get connector configuration
1346  * @inode: inode from the ioctl
1347  * @filp: file * from the ioctl
1348  * @cmd: cmd from ioctl
1349  * @arg: arg from ioctl
1350  *
1351  * LOCKING:
1352  * Takes mode config lock.
1353  *
1354  * Construct a connector configuration structure to return to the user.
1355  *
1356  * Called by the user via ioctl.
1357  *
1358  * RETURNS:
1359  * Zero on success, errno on failure.
1360  */
1361 int drm_mode_getconnector(struct drm_device *dev, void *data,
1362                           struct drm_file *file_priv)
1363 {
1364         struct drm_mode_get_connector *out_resp = data;
1365         struct drm_mode_object *obj;
1366         struct drm_connector *connector;
1367         struct drm_display_mode *mode;
1368         int mode_count = 0;
1369         int props_count = 0;
1370         int encoders_count = 0;
1371         int ret = 0;
1372         int copied = 0;
1373         int i;
1374         struct drm_mode_modeinfo u_mode;
1375         struct drm_mode_modeinfo __user *mode_ptr;
1376         uint32_t *prop_ptr;
1377         uint64_t *prop_values;
1378         uint32_t *encoder_ptr;
1379
1380         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1381                 return (EINVAL);
1382
1383         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1384
1385         DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1386
1387         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1388
1389         obj = drm_mode_object_find(dev, out_resp->connector_id,
1390                                    DRM_MODE_OBJECT_CONNECTOR);
1391         if (!obj) {
1392                 ret = EINVAL;
1393                 goto out;
1394         }
1395         connector = obj_to_connector(obj);
1396
1397         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1398                 if (connector->property_ids[i] != 0) {
1399                         props_count++;
1400                 }
1401         }
1402
1403         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1404                 if (connector->encoder_ids[i] != 0) {
1405                         encoders_count++;
1406                 }
1407         }
1408
1409         if (out_resp->count_modes == 0) {
1410                 connector->funcs->fill_modes(connector,
1411                                              dev->mode_config.max_width,
1412                                              dev->mode_config.max_height);
1413         }
1414
1415         /* delayed so we get modes regardless of pre-fill_modes state */
1416         list_for_each_entry(mode, &connector->modes, head)
1417                 mode_count++;
1418
1419         out_resp->connector_id = connector->base.id;
1420         out_resp->connector_type = connector->connector_type;
1421         out_resp->connector_type_id = connector->connector_type_id;
1422         out_resp->mm_width = connector->display_info.width_mm;
1423         out_resp->mm_height = connector->display_info.height_mm;
1424         out_resp->subpixel = connector->display_info.subpixel_order;
1425         out_resp->connection = connector->status;
1426         if (connector->encoder)
1427                 out_resp->encoder_id = connector->encoder->base.id;
1428         else
1429                 out_resp->encoder_id = 0;
1430
1431         /*
1432          * This ioctl is called twice, once to determine how much space is
1433          * needed, and the 2nd time to fill it.
1434          */
1435         if ((out_resp->count_modes >= mode_count) && mode_count) {
1436                 copied = 0;
1437                 mode_ptr = (struct drm_mode_modeinfo *)(uintptr_t)out_resp->modes_ptr;
1438                 list_for_each_entry(mode, &connector->modes, head) {
1439                         drm_crtc_convert_to_umode(&u_mode, mode);
1440                         if (copyout(&u_mode, mode_ptr + copied,
1441                             sizeof(u_mode))) {
1442                                 ret = EFAULT;
1443                                 goto out;
1444                         }
1445                         copied++;
1446                 }
1447         }
1448         out_resp->count_modes = mode_count;
1449
1450         if ((out_resp->count_props >= props_count) && props_count) {
1451                 copied = 0;
1452                 prop_ptr = (uint32_t *)(uintptr_t)(out_resp->props_ptr);
1453                 prop_values = (uint64_t *)(uintptr_t)(out_resp->prop_values_ptr);
1454                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1455                         if (connector->property_ids[i] != 0) {
1456                                 if (copyout(&connector->property_ids[i],
1457                                     prop_ptr + copied, sizeof(uint32_t))) {
1458                                         ret = EFAULT;
1459                                         goto out;
1460                                 }
1461
1462                                 if (copyout(&connector->property_values[i],
1463                                     prop_values + copied, sizeof(uint64_t))) {
1464                                         ret = EFAULT;
1465                                         goto out;
1466                                 }
1467                                 copied++;
1468                         }
1469                 }
1470         }
1471         out_resp->count_props = props_count;
1472
1473         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1474                 copied = 0;
1475                 encoder_ptr = (uint32_t *)(uintptr_t)(out_resp->encoders_ptr);
1476                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1477                         if (connector->encoder_ids[i] != 0) {
1478                                 if (copyout(&connector->encoder_ids[i],
1479                                     encoder_ptr + copied, sizeof(uint32_t))) {
1480                                         ret = EFAULT;
1481                                         goto out;
1482                                 }
1483                                 copied++;
1484                         }
1485                 }
1486         }
1487         out_resp->count_encoders = encoders_count;
1488
1489 out:
1490         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1491         return ret;
1492 }
1493
1494 int drm_mode_getencoder(struct drm_device *dev, void *data,
1495                         struct drm_file *file_priv)
1496 {
1497         struct drm_mode_get_encoder *enc_resp = data;
1498         struct drm_mode_object *obj;
1499         struct drm_encoder *encoder;
1500         int ret = 0;
1501
1502         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1503                 return (EINVAL);
1504
1505         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1506         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1507                                    DRM_MODE_OBJECT_ENCODER);
1508         if (!obj) {
1509                 ret = EINVAL;
1510                 goto out;
1511         }
1512         encoder = obj_to_encoder(obj);
1513
1514         if (encoder->crtc)
1515                 enc_resp->crtc_id = encoder->crtc->base.id;
1516         else
1517                 enc_resp->crtc_id = 0;
1518         enc_resp->encoder_type = encoder->encoder_type;
1519         enc_resp->encoder_id = encoder->base.id;
1520         enc_resp->possible_crtcs = encoder->possible_crtcs;
1521         enc_resp->possible_clones = encoder->possible_clones;
1522
1523 out:
1524         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1525         return ret;
1526 }
1527
1528 /**
1529  * drm_mode_getplane_res - get plane info
1530  * @dev: DRM device
1531  * @data: ioctl data
1532  * @file_priv: DRM file info
1533  *
1534  * LOCKING:
1535  * Takes mode config lock.
1536  *
1537  * Return an plane count and set of IDs.
1538  */
1539 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1540                             struct drm_file *file_priv)
1541 {
1542         struct drm_mode_get_plane_res *plane_resp = data;
1543         struct drm_mode_config *config;
1544         struct drm_plane *plane;
1545         uint32_t *plane_ptr;
1546         int copied = 0, ret = 0;
1547
1548         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1549                 return (EINVAL);
1550
1551         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1552         config = &dev->mode_config;
1553
1554         /*
1555          * This ioctl is called twice, once to determine how much space is
1556          * needed, and the 2nd time to fill it.
1557          */
1558         if (config->num_plane &&
1559             (plane_resp->count_planes >= config->num_plane)) {
1560                 plane_ptr = (uint32_t *)(unsigned long)plane_resp->plane_id_ptr;
1561
1562                 list_for_each_entry(plane, &config->plane_list, head) {
1563                         if (copyout(&plane->base.id, plane_ptr + copied,
1564                             sizeof(uint32_t))) {
1565                                 ret = EFAULT;
1566                                 goto out;
1567                         }
1568                         copied++;
1569                 }
1570         }
1571         plane_resp->count_planes = config->num_plane;
1572
1573 out:
1574         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1575         return ret;
1576 }
1577
1578 /**
1579  * drm_mode_getplane - get plane info
1580  * @dev: DRM device
1581  * @data: ioctl data
1582  * @file_priv: DRM file info
1583  *
1584  * LOCKING:
1585  * Takes mode config lock.
1586  *
1587  * Return plane info, including formats supported, gamma size, any
1588  * current fb, etc.
1589  */
1590 int drm_mode_getplane(struct drm_device *dev, void *data,
1591                         struct drm_file *file_priv)
1592 {
1593         struct drm_mode_get_plane *plane_resp = data;
1594         struct drm_mode_object *obj;
1595         struct drm_plane *plane;
1596         uint32_t *format_ptr;
1597         int ret = 0;
1598
1599         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1600                 return (EINVAL);
1601
1602         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1603         obj = drm_mode_object_find(dev, plane_resp->plane_id,
1604                                    DRM_MODE_OBJECT_PLANE);
1605         if (!obj) {
1606                 ret = ENOENT;
1607                 goto out;
1608         }
1609         plane = obj_to_plane(obj);
1610
1611         if (plane->crtc)
1612                 plane_resp->crtc_id = plane->crtc->base.id;
1613         else
1614                 plane_resp->crtc_id = 0;
1615
1616         if (plane->fb)
1617                 plane_resp->fb_id = plane->fb->base.id;
1618         else
1619                 plane_resp->fb_id = 0;
1620
1621         plane_resp->plane_id = plane->base.id;
1622         plane_resp->possible_crtcs = plane->possible_crtcs;
1623         plane_resp->gamma_size = plane->gamma_size;
1624
1625         /*
1626          * This ioctl is called twice, once to determine how much space is
1627          * needed, and the 2nd time to fill it.
1628          */
1629         if (plane->format_count &&
1630             (plane_resp->count_format_types >= plane->format_count)) {
1631                 format_ptr = (uint32_t *)(unsigned long)plane_resp->format_type_ptr;
1632                 if (copyout(format_ptr,
1633                                  plane->format_types,
1634                                  sizeof(uint32_t) * plane->format_count)) {
1635                         ret = EFAULT;
1636                         goto out;
1637                 }
1638         }
1639         plane_resp->count_format_types = plane->format_count;
1640
1641 out:
1642         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1643         return ret;
1644 }
1645
1646 /**
1647  * drm_mode_setplane - set up or tear down an plane
1648  * @dev: DRM device
1649  * @data: ioctl data*
1650  * @file_prive: DRM file info
1651  *
1652  * LOCKING:
1653  * Takes mode config lock.
1654  *
1655  * Set plane info, including placement, fb, scaling, and other factors.
1656  * Or pass a NULL fb to disable.
1657  */
1658 int drm_mode_setplane(struct drm_device *dev, void *data,
1659                         struct drm_file *file_priv)
1660 {
1661         struct drm_mode_set_plane *plane_req = data;
1662         struct drm_mode_object *obj;
1663         struct drm_plane *plane;
1664         struct drm_crtc *crtc;
1665         struct drm_framebuffer *fb;
1666         int ret = 0;
1667         unsigned int fb_width, fb_height;
1668         int i;
1669
1670         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1671                 return (EINVAL);
1672
1673         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1674
1675         /*
1676          * First, find the plane, crtc, and fb objects.  If not available,
1677          * we don't bother to call the driver.
1678          */
1679         obj = drm_mode_object_find(dev, plane_req->plane_id,
1680                                    DRM_MODE_OBJECT_PLANE);
1681         if (!obj) {
1682                 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1683                               plane_req->plane_id);
1684                 ret = ENOENT;
1685                 goto out;
1686         }
1687         plane = obj_to_plane(obj);
1688
1689         /* No fb means shut it down */
1690         if (!plane_req->fb_id) {
1691                 plane->funcs->disable_plane(plane);
1692                 plane->crtc = NULL;
1693                 plane->fb = NULL;
1694                 goto out;
1695         }
1696
1697         obj = drm_mode_object_find(dev, plane_req->crtc_id,
1698                                    DRM_MODE_OBJECT_CRTC);
1699         if (!obj) {
1700                 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1701                               plane_req->crtc_id);
1702                 ret = ENOENT;
1703                 goto out;
1704         }
1705         crtc = obj_to_crtc(obj);
1706
1707         obj = drm_mode_object_find(dev, plane_req->fb_id,
1708                                    DRM_MODE_OBJECT_FB);
1709         if (!obj) {
1710                 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1711                               plane_req->fb_id);
1712                 ret = ENOENT;
1713                 goto out;
1714         }
1715         fb = obj_to_fb(obj);
1716
1717         /* Check whether this plane supports the fb pixel format. */
1718         for (i = 0; i < plane->format_count; i++)
1719                 if (fb->pixel_format == plane->format_types[i])
1720                         break;
1721         if (i == plane->format_count) {
1722                 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1723                 ret = EINVAL;
1724                 goto out;
1725         }
1726
1727         fb_width = fb->width << 16;
1728         fb_height = fb->height << 16;
1729
1730         /* Make sure source coordinates are inside the fb. */
1731         if (plane_req->src_w > fb_width ||
1732             plane_req->src_x > fb_width - plane_req->src_w ||
1733             plane_req->src_h > fb_height ||
1734             plane_req->src_y > fb_height - plane_req->src_h) {
1735                 DRM_DEBUG_KMS("Invalid source coordinates "
1736                               "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1737                               plane_req->src_w >> 16,
1738                               ((plane_req->src_w & 0xffff) * 15625) >> 10,
1739                               plane_req->src_h >> 16,
1740                               ((plane_req->src_h & 0xffff) * 15625) >> 10,
1741                               plane_req->src_x >> 16,
1742                               ((plane_req->src_x & 0xffff) * 15625) >> 10,
1743                               plane_req->src_y >> 16,
1744                               ((plane_req->src_y & 0xffff) * 15625) >> 10);
1745                 ret = ENOSPC;
1746                 goto out;
1747         }
1748
1749         /* Give drivers some help against integer overflows */
1750         if (plane_req->crtc_w > INT_MAX ||
1751             plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1752             plane_req->crtc_h > INT_MAX ||
1753             plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1754                 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1755                               plane_req->crtc_w, plane_req->crtc_h,
1756                               plane_req->crtc_x, plane_req->crtc_y);
1757                 ret = ERANGE;
1758                 goto out;
1759         }
1760
1761         ret = -plane->funcs->update_plane(plane, crtc, fb,
1762                                          plane_req->crtc_x, plane_req->crtc_y,
1763                                          plane_req->crtc_w, plane_req->crtc_h,
1764                                          plane_req->src_x, plane_req->src_y,
1765                                          plane_req->src_w, plane_req->src_h);
1766         if (!ret) {
1767                 plane->crtc = crtc;
1768                 plane->fb = fb;
1769         }
1770
1771 out:
1772         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1773
1774         return ret;
1775 }
1776
1777 /**
1778  * drm_mode_setcrtc - set CRTC configuration
1779  * @inode: inode from the ioctl
1780  * @filp: file * from the ioctl
1781  * @cmd: cmd from ioctl
1782  * @arg: arg from ioctl
1783  *
1784  * LOCKING:
1785  * Takes mode config lock.
1786  *
1787  * Build a new CRTC configuration based on user request.
1788  *
1789  * Called by the user via ioctl.
1790  *
1791  * RETURNS:
1792  * Zero on success, errno on failure.
1793  */
1794 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1795                      struct drm_file *file_priv)
1796 {
1797         struct drm_mode_config *config = &dev->mode_config;
1798         struct drm_mode_crtc *crtc_req = data;
1799         struct drm_mode_object *obj;
1800         struct drm_crtc *crtc;
1801         struct drm_connector **connector_set = NULL, *connector;
1802         struct drm_framebuffer *fb = NULL;
1803         struct drm_display_mode *mode = NULL;
1804         struct drm_mode_set set;
1805         uint32_t *set_connectors_ptr;
1806         int ret = 0;
1807         int i;
1808
1809         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1810                 return (EINVAL);
1811
1812         /* For some reason crtc x/y offsets are signed internally. */
1813         if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1814                 return (ERANGE);
1815
1816         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1817         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1818                                    DRM_MODE_OBJECT_CRTC);
1819         if (!obj) {
1820                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1821                 ret = EINVAL;
1822                 goto out;
1823         }
1824         crtc = obj_to_crtc(obj);
1825         DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1826
1827         if (crtc_req->mode_valid) {
1828                 /* If we have a mode we need a framebuffer. */
1829                 /* If we pass -1, set the mode with the currently bound fb */
1830                 if (crtc_req->fb_id == -1) {
1831                         if (!crtc->fb) {
1832                                 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
1833                                 ret = -EINVAL;
1834                                 goto out;
1835                         }
1836                         fb = crtc->fb;
1837                 } else {
1838                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1839                                                    DRM_MODE_OBJECT_FB);
1840                         if (!obj) {
1841                                 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1842                                                 crtc_req->fb_id);
1843                                 ret = EINVAL;
1844                                 goto out;
1845                         }
1846                         fb = obj_to_fb(obj);
1847                 }
1848
1849                 mode = drm_mode_create(dev);
1850                 if (!mode) {
1851                         ret = ENOMEM;
1852                         goto out;
1853                 }
1854
1855                 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
1856                 if (ret) {
1857                         DRM_DEBUG_KMS("Invalid mode\n");
1858                         goto out;
1859                 }
1860
1861                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1862
1863                 if (mode->hdisplay > fb->width ||
1864                     mode->vdisplay > fb->height ||
1865                     crtc_req->x > fb->width - mode->hdisplay ||
1866                     crtc_req->y > fb->height - mode->vdisplay) {
1867                         DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n",
1868                                       mode->hdisplay, mode->vdisplay,
1869                                       crtc_req->x, crtc_req->y,
1870                                       fb->width, fb->height);
1871                         ret = ENOSPC;
1872                         goto out;
1873                 }
1874         }
1875
1876         if (crtc_req->count_connectors == 0 && mode) {
1877                 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1878                 ret = EINVAL;
1879                 goto out;
1880         }
1881
1882         if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1883                 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1884                           crtc_req->count_connectors);
1885                 ret = EINVAL;
1886                 goto out;
1887         }
1888
1889         if (crtc_req->count_connectors > 0) {
1890                 u32 out_id;
1891
1892                 /* Avoid unbounded kernel memory allocation */
1893                 if (crtc_req->count_connectors > config->num_connector) {
1894                         ret = EINVAL;
1895                         goto out;
1896                 }
1897
1898                 connector_set = kmalloc(crtc_req->count_connectors *
1899                     sizeof(struct drm_connector *), DRM_MEM_KMS, M_WAITOK);
1900
1901                 for (i = 0; i < crtc_req->count_connectors; i++) {
1902                         set_connectors_ptr = (uint32_t *)(uintptr_t)crtc_req->set_connectors_ptr;
1903                         if (copyin(&set_connectors_ptr[i], &out_id, sizeof(uint32_t))) {
1904                                 ret = EFAULT;
1905                                 goto out;
1906                         }
1907
1908                         obj = drm_mode_object_find(dev, out_id,
1909                                                    DRM_MODE_OBJECT_CONNECTOR);
1910                         if (!obj) {
1911                                 DRM_DEBUG_KMS("Connector id %d unknown\n",
1912                                                 out_id);
1913                                 ret = EINVAL;
1914                                 goto out;
1915                         }
1916                         connector = obj_to_connector(obj);
1917                         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1918                                         connector->base.id,
1919                                         drm_get_connector_name(connector));
1920
1921                         connector_set[i] = connector;
1922                 }
1923         }
1924
1925         set.crtc = crtc;
1926         set.x = crtc_req->x;
1927         set.y = crtc_req->y;
1928         set.mode = mode;
1929         set.connectors = connector_set;
1930         set.num_connectors = crtc_req->count_connectors;
1931         set.fb = fb;
1932         ret = crtc->funcs->set_config(&set);
1933
1934 out:
1935         drm_free(connector_set, DRM_MEM_KMS);
1936         drm_mode_destroy(dev, mode);
1937         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1938         return ret;
1939 }
1940
1941 int drm_mode_cursor_ioctl(struct drm_device *dev,
1942                         void *data, struct drm_file *file_priv)
1943 {
1944         struct drm_mode_cursor *req = data;
1945         struct drm_mode_object *obj;
1946         struct drm_crtc *crtc;
1947         int ret = 0;
1948
1949         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1950                 return (EINVAL);
1951
1952         if (!req->flags)
1953                 return (EINVAL);
1954
1955         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
1956         obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1957         if (!obj) {
1958                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1959                 ret = EINVAL;
1960                 goto out;
1961         }
1962         crtc = obj_to_crtc(obj);
1963
1964         if (req->flags & DRM_MODE_CURSOR_BO) {
1965                 if (!crtc->funcs->cursor_set) {
1966                         ret = ENXIO;
1967                         goto out;
1968                 }
1969                 /* Turns off the cursor if handle is 0 */
1970                 ret = -crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1971                                               req->width, req->height);
1972         }
1973
1974         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1975                 if (crtc->funcs->cursor_move) {
1976                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1977                 } else {
1978                         ret = EFAULT;
1979                         goto out;
1980                 }
1981         }
1982 out:
1983         lockmgr(&dev->mode_config.lock, LK_RELEASE);
1984         return ret;
1985 }
1986
1987 /* Original addfb only supported RGB formats, so figure out which one */
1988 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1989 {
1990         uint32_t fmt;
1991
1992         switch (bpp) {
1993         case 8:
1994                 fmt = DRM_FORMAT_RGB332;
1995                 break;
1996         case 16:
1997                 if (depth == 15)
1998                         fmt = DRM_FORMAT_XRGB1555;
1999                 else
2000                         fmt = DRM_FORMAT_RGB565;
2001                 break;
2002         case 24:
2003                 fmt = DRM_FORMAT_RGB888;
2004                 break;
2005         case 32:
2006                 if (depth == 24)
2007                         fmt = DRM_FORMAT_XRGB8888;
2008                 else if (depth == 30)
2009                         fmt = DRM_FORMAT_XRGB2101010;
2010                 else
2011                         fmt = DRM_FORMAT_ARGB8888;
2012                 break;
2013         default:
2014                 DRM_ERROR("bad bpp, assuming RGB24 pixel format\n");
2015                 fmt = DRM_FORMAT_XRGB8888;
2016                 break;
2017         }
2018
2019         return fmt;
2020 }
2021
2022 /**
2023  * drm_mode_addfb - add an FB to the graphics configuration
2024  * @inode: inode from the ioctl
2025  * @filp: file * from the ioctl
2026  * @cmd: cmd from ioctl
2027  * @arg: arg from ioctl
2028  *
2029  * LOCKING:
2030  * Takes mode config lock.
2031  *
2032  * Add a new FB to the specified CRTC, given a user request.
2033  *
2034  * Called by the user via ioctl.
2035  *
2036  * RETURNS:
2037  * Zero on success, errno on failure.
2038  */
2039 int drm_mode_addfb(struct drm_device *dev,
2040                    void *data, struct drm_file *file_priv)
2041 {
2042         struct drm_mode_fb_cmd *or = data;
2043         struct drm_mode_fb_cmd2 r = {};
2044         struct drm_mode_config *config = &dev->mode_config;
2045         struct drm_framebuffer *fb;
2046         int ret = 0;
2047
2048         /* Use new struct with format internally */
2049         r.fb_id = or->fb_id;
2050         r.width = or->width;
2051         r.height = or->height;
2052         r.pitches[0] = or->pitch;
2053         r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2054         r.handles[0] = or->handle;
2055
2056         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2057                 return (EINVAL);
2058
2059         if ((config->min_width > r.width) || (r.width > config->max_width))
2060                 return (EINVAL);
2061         if ((config->min_height > r.height) || (r.height > config->max_height))
2062                 return (EINVAL);
2063
2064         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2065
2066         ret = -dev->mode_config.funcs->fb_create(dev, file_priv, &r, &fb);
2067         if (ret != 0) {
2068                 DRM_ERROR("could not create framebuffer, error %d\n", ret);
2069                 goto out;
2070         }
2071
2072         or->fb_id = fb->base.id;
2073         list_add(&fb->filp_head, &file_priv->fbs);
2074         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2075
2076 out:
2077         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2078         return ret;
2079 }
2080
2081 static int format_check(struct drm_mode_fb_cmd2 *r)
2082 {
2083         uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2084
2085         switch (format) {
2086         case DRM_FORMAT_C8:
2087         case DRM_FORMAT_RGB332:
2088         case DRM_FORMAT_BGR233:
2089         case DRM_FORMAT_XRGB4444:
2090         case DRM_FORMAT_XBGR4444:
2091         case DRM_FORMAT_RGBX4444:
2092         case DRM_FORMAT_BGRX4444:
2093         case DRM_FORMAT_ARGB4444:
2094         case DRM_FORMAT_ABGR4444:
2095         case DRM_FORMAT_RGBA4444:
2096         case DRM_FORMAT_BGRA4444:
2097         case DRM_FORMAT_XRGB1555:
2098         case DRM_FORMAT_XBGR1555:
2099         case DRM_FORMAT_RGBX5551:
2100         case DRM_FORMAT_BGRX5551:
2101         case DRM_FORMAT_ARGB1555:
2102         case DRM_FORMAT_ABGR1555:
2103         case DRM_FORMAT_RGBA5551:
2104         case DRM_FORMAT_BGRA5551:
2105         case DRM_FORMAT_RGB565:
2106         case DRM_FORMAT_BGR565:
2107         case DRM_FORMAT_RGB888:
2108         case DRM_FORMAT_BGR888:
2109         case DRM_FORMAT_XRGB8888:
2110         case DRM_FORMAT_XBGR8888:
2111         case DRM_FORMAT_RGBX8888:
2112         case DRM_FORMAT_BGRX8888:
2113         case DRM_FORMAT_ARGB8888:
2114         case DRM_FORMAT_ABGR8888:
2115         case DRM_FORMAT_RGBA8888:
2116         case DRM_FORMAT_BGRA8888:
2117         case DRM_FORMAT_XRGB2101010:
2118         case DRM_FORMAT_XBGR2101010:
2119         case DRM_FORMAT_RGBX1010102:
2120         case DRM_FORMAT_BGRX1010102:
2121         case DRM_FORMAT_ARGB2101010:
2122         case DRM_FORMAT_ABGR2101010:
2123         case DRM_FORMAT_RGBA1010102:
2124         case DRM_FORMAT_BGRA1010102:
2125         case DRM_FORMAT_YUYV:
2126         case DRM_FORMAT_YVYU:
2127         case DRM_FORMAT_UYVY:
2128         case DRM_FORMAT_VYUY:
2129         case DRM_FORMAT_AYUV:
2130         case DRM_FORMAT_NV12:
2131         case DRM_FORMAT_NV21:
2132         case DRM_FORMAT_NV16:
2133         case DRM_FORMAT_NV61:
2134         case DRM_FORMAT_YUV410:
2135         case DRM_FORMAT_YVU410:
2136         case DRM_FORMAT_YUV411:
2137         case DRM_FORMAT_YVU411:
2138         case DRM_FORMAT_YUV420:
2139         case DRM_FORMAT_YVU420:
2140         case DRM_FORMAT_YUV422:
2141         case DRM_FORMAT_YVU422:
2142         case DRM_FORMAT_YUV444:
2143         case DRM_FORMAT_YVU444:
2144                 return 0;
2145         default:
2146                 return (EINVAL);
2147         }
2148 }
2149
2150 /**
2151  * drm_mode_addfb2 - add an FB to the graphics configuration
2152  * @inode: inode from the ioctl
2153  * @filp: file * from the ioctl
2154  * @cmd: cmd from ioctl
2155  * @arg: arg from ioctl
2156  *
2157  * LOCKING:
2158  * Takes mode config lock.
2159  *
2160  * Add a new FB to the specified CRTC, given a user request with format.
2161  *
2162  * Called by the user via ioctl.
2163  *
2164  * RETURNS:
2165  * Zero on success, errno on failure.
2166  */
2167 int drm_mode_addfb2(struct drm_device *dev,
2168                     void *data, struct drm_file *file_priv)
2169 {
2170         struct drm_mode_fb_cmd2 *r = data;
2171         struct drm_mode_config *config = &dev->mode_config;
2172         struct drm_framebuffer *fb;
2173         int ret = 0;
2174
2175         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2176                 return (EINVAL);
2177
2178         if ((config->min_width > r->width) || (r->width > config->max_width)) {
2179                 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2180                           r->width, config->min_width, config->max_width);
2181                 return (EINVAL);
2182         }
2183         if ((config->min_height > r->height) || (r->height > config->max_height)) {
2184                 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2185                           r->height, config->min_height, config->max_height);
2186                 return (EINVAL);
2187         }
2188
2189         ret = format_check(r);
2190         if (ret) {
2191                 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2192                 return ret;
2193         }
2194
2195         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2196
2197         /* TODO check buffer is sufficiently large */
2198         /* TODO setup destructor callback */
2199
2200         ret = -dev->mode_config.funcs->fb_create(dev, file_priv, r, &fb);
2201         if (ret != 0) {
2202                 DRM_ERROR("could not create framebuffer, error %d\n", ret);
2203                 goto out;
2204         }
2205
2206         r->fb_id = fb->base.id;
2207         list_add(&fb->filp_head, &file_priv->fbs);
2208         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2209
2210 out:
2211         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2212         return (ret);
2213 }
2214
2215 /**
2216  * drm_mode_rmfb - remove an FB from the configuration
2217  * @inode: inode from the ioctl
2218  * @filp: file * from the ioctl
2219  * @cmd: cmd from ioctl
2220  * @arg: arg from ioctl
2221  *
2222  * LOCKING:
2223  * Takes mode config lock.
2224  *
2225  * Remove the FB specified by the user.
2226  *
2227  * Called by the user via ioctl.
2228  *
2229  * RETURNS:
2230  * Zero on success, errno on failure.
2231  */
2232 int drm_mode_rmfb(struct drm_device *dev,
2233                    void *data, struct drm_file *file_priv)
2234 {
2235         struct drm_mode_object *obj;
2236         struct drm_framebuffer *fb = NULL;
2237         struct drm_framebuffer *fbl = NULL;
2238         uint32_t *id = data;
2239         int ret = 0;
2240         int found = 0;
2241
2242         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2243                 return (EINVAL);
2244
2245         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2246         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
2247         /* TODO check that we really get a framebuffer back. */
2248         if (!obj) {
2249                 ret = EINVAL;
2250                 goto out;
2251         }
2252         fb = obj_to_fb(obj);
2253
2254         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2255                 if (fb == fbl)
2256                         found = 1;
2257
2258         if (!found) {
2259                 ret = EINVAL;
2260                 goto out;
2261         }
2262
2263         /* TODO release all crtc connected to the framebuffer */
2264         /* TODO unhock the destructor from the buffer object */
2265
2266         list_del(&fb->filp_head);
2267         fb->funcs->destroy(fb);
2268
2269 out:
2270         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2271         return ret;
2272 }
2273
2274 /**
2275  * drm_mode_getfb - get FB info
2276  * @inode: inode from the ioctl
2277  * @filp: file * from the ioctl
2278  * @cmd: cmd from ioctl
2279  * @arg: arg from ioctl
2280  *
2281  * LOCKING:
2282  * Takes mode config lock.
2283  *
2284  * Lookup the FB given its ID and return info about it.
2285  *
2286  * Called by the user via ioctl.
2287  *
2288  * RETURNS:
2289  * Zero on success, errno on failure.
2290  */
2291 int drm_mode_getfb(struct drm_device *dev,
2292                    void *data, struct drm_file *file_priv)
2293 {
2294         struct drm_mode_fb_cmd *r = data;
2295         struct drm_mode_object *obj;
2296         struct drm_framebuffer *fb;
2297         int ret = 0;
2298
2299         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2300                 return (EINVAL);
2301
2302         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2303         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2304         if (!obj) {
2305                 ret = EINVAL;
2306                 goto out;
2307         }
2308         fb = obj_to_fb(obj);
2309
2310         r->height = fb->height;
2311         r->width = fb->width;
2312         r->depth = fb->depth;
2313         r->bpp = fb->bits_per_pixel;
2314         r->pitch = fb->pitches[0];
2315         fb->funcs->create_handle(fb, file_priv, &r->handle);
2316
2317 out:
2318         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2319         return ret;
2320 }
2321
2322 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2323                            void *data, struct drm_file *file_priv)
2324 {
2325         struct drm_clip_rect __user *clips_ptr;
2326         struct drm_clip_rect *clips = NULL;
2327         struct drm_mode_fb_dirty_cmd *r = data;
2328         struct drm_mode_object *obj;
2329         struct drm_framebuffer *fb;
2330         unsigned flags;
2331         int num_clips;
2332         int ret = 0;
2333
2334         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2335                 return (EINVAL);
2336
2337         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2338         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2339         if (!obj) {
2340                 ret = EINVAL;
2341                 goto out_err1;
2342         }
2343         fb = obj_to_fb(obj);
2344
2345         num_clips = r->num_clips;
2346         clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
2347
2348         if (!num_clips != !clips_ptr) {
2349                 ret = EINVAL;
2350                 goto out_err1;
2351         }
2352
2353         flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2354
2355         /* If userspace annotates copy, clips must come in pairs */
2356         if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2357                 ret = EINVAL;
2358                 goto out_err1;
2359         }
2360
2361         if (num_clips && clips_ptr) {
2362                 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2363                         ret = EINVAL;
2364                         goto out_err1;
2365                 }
2366                 clips = kmalloc(num_clips * sizeof(*clips), DRM_MEM_KMS,
2367                     M_WAITOK | M_ZERO);
2368
2369                 ret = copyin(clips_ptr, clips, num_clips * sizeof(*clips));
2370                 if (ret)
2371                         goto out_err2;
2372         }
2373
2374         if (fb->funcs->dirty) {
2375                 ret = -fb->funcs->dirty(fb, file_priv, flags, r->color,
2376                                        clips, num_clips);
2377         } else {
2378                 ret = ENOSYS;
2379                 goto out_err2;
2380         }
2381
2382 out_err2:
2383         drm_free(clips, DRM_MEM_KMS);
2384 out_err1:
2385         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2386         return ret;
2387 }
2388
2389
2390 /**
2391  * drm_fb_release - remove and free the FBs on this file
2392  * @filp: file * from the ioctl
2393  *
2394  * LOCKING:
2395  * Takes mode config lock.
2396  *
2397  * Destroy all the FBs associated with @filp.
2398  *
2399  * Called by the user via ioctl.
2400  *
2401  * RETURNS:
2402  * Zero on success, errno on failure.
2403  */
2404 void drm_fb_release(struct drm_file *priv)
2405 {
2406 #if 1
2407         struct drm_device *dev = priv->dev;
2408 #else
2409         struct drm_device *dev = priv->minor->dev;
2410 #endif
2411         struct drm_framebuffer *fb, *tfb;
2412
2413         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2414         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2415                 list_del(&fb->filp_head);
2416                 fb->funcs->destroy(fb);
2417         }
2418         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2419 }
2420
2421 /**
2422  * drm_mode_attachmode - add a mode to the user mode list
2423  * @dev: DRM device
2424  * @connector: connector to add the mode to
2425  * @mode: mode to add
2426  *
2427  * Add @mode to @connector's user mode list.
2428  */
2429 static void drm_mode_attachmode(struct drm_device *dev,
2430                                 struct drm_connector *connector,
2431                                 struct drm_display_mode *mode)
2432 {
2433         list_add_tail(&mode->head, &connector->user_modes);
2434 }
2435
2436 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2437                              const struct drm_display_mode *mode)
2438 {
2439         struct drm_connector *connector;
2440         int ret = 0;
2441         struct drm_display_mode *dup_mode, *next;
2442         DRM_LIST_HEAD(list);
2443
2444         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2445                 if (!connector->encoder)
2446                         continue;
2447                 if (connector->encoder->crtc == crtc) {
2448                         dup_mode = drm_mode_duplicate(dev, mode);
2449                         if (!dup_mode) {
2450                                 ret = ENOMEM;
2451                                 goto out;
2452                         }
2453                         list_add_tail(&dup_mode->head, &list);
2454                 }
2455         }
2456
2457         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2458                 if (!connector->encoder)
2459                         continue;
2460                 if (connector->encoder->crtc == crtc)
2461                         list_move_tail(list.next, &connector->user_modes);
2462         }
2463
2464         KASSERT(!list_empty(&list), ("list empty"));
2465
2466  out:
2467         list_for_each_entry_safe(dup_mode, next, &list, head)
2468                 drm_mode_destroy(dev, dup_mode);
2469
2470         return ret;
2471 }
2472
2473 static int drm_mode_detachmode(struct drm_device *dev,
2474                                struct drm_connector *connector,
2475                                struct drm_display_mode *mode)
2476 {
2477         int found = 0;
2478         int ret = 0;
2479         struct drm_display_mode *match_mode, *t;
2480
2481         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2482                 if (drm_mode_equal(match_mode, mode)) {
2483                         list_del(&match_mode->head);
2484                         drm_mode_destroy(dev, match_mode);
2485                         found = 1;
2486                         break;
2487                 }
2488         }
2489
2490         if (!found)
2491                 ret = -EINVAL;
2492
2493         return ret;
2494 }
2495
2496 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2497 {
2498         struct drm_connector *connector;
2499
2500         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2501                 drm_mode_detachmode(dev, connector, mode);
2502         }
2503         return 0;
2504 }
2505
2506 /**
2507  * drm_fb_attachmode - Attach a user mode to an connector
2508  * @inode: inode from the ioctl
2509  * @filp: file * from the ioctl
2510  * @cmd: cmd from ioctl
2511  * @arg: arg from ioctl
2512  *
2513  * This attaches a user specified mode to an connector.
2514  * Called by the user via ioctl.
2515  *
2516  * RETURNS:
2517  * Zero on success, errno on failure.
2518  */
2519 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2520                               void *data, struct drm_file *file_priv)
2521 {
2522         struct drm_mode_mode_cmd *mode_cmd = data;
2523         struct drm_connector *connector;
2524         struct drm_display_mode *mode;
2525         struct drm_mode_object *obj;
2526         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2527         int ret = 0;
2528
2529         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2530                 return -EINVAL;
2531
2532         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2533
2534         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2535         if (!obj) {
2536                 ret = -EINVAL;
2537                 goto out;
2538         }
2539         connector = obj_to_connector(obj);
2540
2541         mode = drm_mode_create(dev);
2542         if (!mode) {
2543                 ret = -ENOMEM;
2544                 goto out;
2545         }
2546
2547         ret = drm_crtc_convert_umode(mode, umode);
2548         if (ret) {
2549                 DRM_DEBUG_KMS("Invalid mode\n");
2550                 drm_mode_destroy(dev, mode);
2551                 goto out;
2552         }
2553
2554         drm_mode_attachmode(dev, connector, mode);
2555 out:
2556         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2557         return ret;
2558 }
2559
2560
2561 /**
2562  * drm_fb_detachmode - Detach a user specified mode from an connector
2563  * @inode: inode from the ioctl
2564  * @filp: file * from the ioctl
2565  * @cmd: cmd from ioctl
2566  * @arg: arg from ioctl
2567  *
2568  * Called by the user via ioctl.
2569  *
2570  * RETURNS:
2571  * Zero on success, errno on failure.
2572  */
2573 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2574                               void *data, struct drm_file *file_priv)
2575 {
2576         struct drm_mode_object *obj;
2577         struct drm_mode_mode_cmd *mode_cmd = data;
2578         struct drm_connector *connector;
2579         struct drm_display_mode mode;
2580         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2581         int ret = 0;
2582
2583         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2584                 return -EINVAL;
2585
2586         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2587
2588         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2589         if (!obj) {
2590                 ret = -EINVAL;
2591                 goto out;
2592         }
2593         connector = obj_to_connector(obj);
2594
2595         ret = drm_crtc_convert_umode(&mode, umode);
2596         if (ret) {
2597                 DRM_DEBUG_KMS("Invalid mode\n");
2598                 goto out;
2599         }
2600
2601         ret = drm_mode_detachmode(dev, connector, &mode);
2602 out:
2603         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2604         return ret;
2605 }
2606
2607 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2608                                          const char *name, int num_values)
2609 {
2610         struct drm_property *property = NULL;
2611         int ret;
2612
2613         property = kmalloc(sizeof(struct drm_property), DRM_MEM_KMS,
2614             M_WAITOK | M_ZERO);
2615
2616         if (num_values) {
2617                 property->values = kmalloc(sizeof(uint64_t)*num_values, DRM_MEM_KMS,
2618                     M_WAITOK | M_ZERO);
2619         }
2620
2621         ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2622         if (ret)
2623                 goto fail;
2624         property->flags = flags;
2625         property->num_values = num_values;
2626         INIT_LIST_HEAD(&property->enum_blob_list);
2627
2628         if (name) {
2629                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2630                 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2631         }
2632
2633         list_add_tail(&property->head, &dev->mode_config.property_list);
2634         return property;
2635
2636 fail:
2637         drm_free(property->values, DRM_MEM_KMS);
2638         drm_free(property, DRM_MEM_KMS);
2639         return (NULL);
2640 }
2641
2642 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2643                                          const char *name,
2644                                          const struct drm_prop_enum_list *props,
2645                                          int num_values)
2646 {
2647         struct drm_property *property;
2648         int i, ret;
2649
2650         flags |= DRM_MODE_PROP_ENUM;
2651
2652         property = drm_property_create(dev, flags, name, num_values);
2653         if (!property)
2654                 return NULL;
2655
2656         for (i = 0; i < num_values; i++) {
2657                 ret = drm_property_add_enum(property, i,
2658                                       props[i].type,
2659                                       props[i].name);
2660                 if (ret) {
2661                         drm_property_destroy(dev, property);
2662                         return NULL;
2663                 }
2664         }
2665
2666         return property;
2667 }
2668
2669 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2670                                          const char *name,
2671                                          uint64_t min, uint64_t max)
2672 {
2673         struct drm_property *property;
2674
2675         flags |= DRM_MODE_PROP_RANGE;
2676
2677         property = drm_property_create(dev, flags, name, 2);
2678         if (!property)
2679                 return NULL;
2680
2681         property->values[0] = min;
2682         property->values[1] = max;
2683
2684         return property;
2685 }
2686
2687 int drm_property_add_enum(struct drm_property *property, int index,
2688                           uint64_t value, const char *name)
2689 {
2690         struct drm_property_enum *prop_enum;
2691
2692         if (!(property->flags & DRM_MODE_PROP_ENUM))
2693                 return -EINVAL;
2694
2695         if (!list_empty(&property->enum_blob_list)) {
2696                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2697                         if (prop_enum->value == value) {
2698                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2699                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2700                                 return 0;
2701                         }
2702                 }
2703         }
2704
2705         prop_enum = kmalloc(sizeof(struct drm_property_enum), DRM_MEM_KMS,
2706             M_WAITOK | M_ZERO);
2707
2708         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2709         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2710         prop_enum->value = value;
2711
2712         property->values[index] = value;
2713         list_add_tail(&prop_enum->head, &property->enum_blob_list);
2714         return 0;
2715 }
2716
2717 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2718 {
2719         struct drm_property_enum *prop_enum, *pt;
2720
2721         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2722                 list_del(&prop_enum->head);
2723                 drm_free(prop_enum, DRM_MEM_KMS);
2724         }
2725
2726         if (property->num_values)
2727                 drm_free(property->values, DRM_MEM_KMS);
2728         drm_mode_object_put(dev, &property->base);
2729         list_del(&property->head);
2730         drm_free(property, DRM_MEM_KMS);
2731 }
2732
2733 int drm_connector_attach_property(struct drm_connector *connector,
2734                                struct drm_property *property, uint64_t init_val)
2735 {
2736         int i;
2737
2738         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2739                 if (connector->property_ids[i] == 0) {
2740                         connector->property_ids[i] = property->base.id;
2741                         connector->property_values[i] = init_val;
2742                         break;
2743                 }
2744         }
2745
2746         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2747                 return -EINVAL;
2748         return 0;
2749 }
2750
2751 int drm_connector_property_set_value(struct drm_connector *connector,
2752                                   struct drm_property *property, uint64_t value)
2753 {
2754         int i;
2755
2756         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2757                 if (connector->property_ids[i] == property->base.id) {
2758                         connector->property_values[i] = value;
2759                         break;
2760                 }
2761         }
2762
2763         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2764                 return -EINVAL;
2765         return 0;
2766 }
2767
2768 int drm_connector_property_get_value(struct drm_connector *connector,
2769                                   struct drm_property *property, uint64_t *val)
2770 {
2771         int i;
2772
2773         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2774                 if (connector->property_ids[i] == property->base.id) {
2775                         *val = connector->property_values[i];
2776                         break;
2777                 }
2778         }
2779
2780         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2781                 return -EINVAL;
2782         return 0;
2783 }
2784
2785 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2786                                void *data, struct drm_file *file_priv)
2787 {
2788         struct drm_mode_object *obj;
2789         struct drm_mode_get_property *out_resp = data;
2790         struct drm_property *property;
2791         int enum_count = 0;
2792         int blob_count = 0;
2793         int value_count = 0;
2794         int ret = 0, i;
2795         int copied;
2796         struct drm_property_enum *prop_enum;
2797         struct drm_mode_property_enum __user *enum_ptr;
2798         struct drm_property_blob *prop_blob;
2799         uint32_t *blob_id_ptr;
2800         uint64_t *values_ptr;
2801         uint32_t *blob_length_ptr;
2802
2803         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2804                 return -EINVAL;
2805
2806         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2807         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2808         if (!obj) {
2809                 ret = -EINVAL;
2810                 goto done;
2811         }
2812         property = obj_to_property(obj);
2813
2814         if (property->flags & DRM_MODE_PROP_ENUM) {
2815                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2816                         enum_count++;
2817         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2818                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2819                         blob_count++;
2820         }
2821
2822         value_count = property->num_values;
2823
2824         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2825         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2826         out_resp->flags = property->flags;
2827
2828         if ((out_resp->count_values >= value_count) && value_count) {
2829                 values_ptr = (uint64_t *)(uintptr_t)out_resp->values_ptr;
2830                 for (i = 0; i < value_count; i++) {
2831                         if (copyout(&property->values[i], values_ptr + i, sizeof(uint64_t))) {
2832                                 ret = -EFAULT;
2833                                 goto done;
2834                         }
2835                 }
2836         }
2837         out_resp->count_values = value_count;
2838
2839         if (property->flags & DRM_MODE_PROP_ENUM) {
2840                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2841                         copied = 0;
2842                         enum_ptr = (struct drm_mode_property_enum *)(uintptr_t)out_resp->enum_blob_ptr;
2843                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2844
2845                                 if (copyout(&prop_enum->value, &enum_ptr[copied].value, sizeof(uint64_t))) {
2846                                         ret = -EFAULT;
2847                                         goto done;
2848                                 }
2849
2850                                 if (copyout(&prop_enum->name,
2851                                     &enum_ptr[copied].name,DRM_PROP_NAME_LEN)) {
2852                                         ret = -EFAULT;
2853                                         goto done;
2854                                 }
2855                                 copied++;
2856                         }
2857                 }
2858                 out_resp->count_enum_blobs = enum_count;
2859         }
2860
2861         if (property->flags & DRM_MODE_PROP_BLOB) {
2862                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2863                         copied = 0;
2864                         blob_id_ptr = (uint32_t *)(uintptr_t)out_resp->enum_blob_ptr;
2865                         blob_length_ptr = (uint32_t *)(uintptr_t)out_resp->values_ptr;
2866
2867                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2868                                 if (copyout(&prop_blob->base.id,
2869                                     blob_id_ptr + copied, sizeof(uint32_t))) {
2870                                         ret = -EFAULT;
2871                                         goto done;
2872                                 }
2873
2874                                 if (copyout(&prop_blob->length,
2875                                     blob_length_ptr + copied, sizeof(uint32_t))) {
2876                                         ret = -EFAULT;
2877                                         goto done;
2878                                 }
2879
2880                                 copied++;
2881                         }
2882                 }
2883                 out_resp->count_enum_blobs = blob_count;
2884         }
2885 done:
2886         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2887         return ret;
2888 }
2889
2890 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2891                                                           void *data)
2892 {
2893         struct drm_property_blob *blob;
2894         int ret;
2895
2896         if (!length || !data)
2897                 return NULL;
2898
2899         blob = kmalloc(sizeof(struct drm_property_blob) + length, DRM_MEM_KMS,
2900             M_WAITOK | M_ZERO);
2901
2902         ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2903         if (ret) {
2904                 drm_free(blob, DRM_MEM_KMS);
2905                 return (NULL);
2906         }
2907
2908         blob->length = length;
2909
2910         memcpy(blob->data, data, length);
2911
2912         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2913         return blob;
2914 }
2915
2916 static void drm_property_destroy_blob(struct drm_device *dev,
2917                                struct drm_property_blob *blob)
2918 {
2919         drm_mode_object_put(dev, &blob->base);
2920         list_del(&blob->head);
2921         drm_free(blob, DRM_MEM_KMS);
2922 }
2923
2924 int drm_mode_getblob_ioctl(struct drm_device *dev,
2925                            void *data, struct drm_file *file_priv)
2926 {
2927         struct drm_mode_object *obj;
2928         struct drm_mode_get_blob *out_resp = data;
2929         struct drm_property_blob *blob;
2930         int ret = 0;
2931         void *blob_ptr;
2932
2933         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2934                 return -EINVAL;
2935
2936         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2937         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2938         if (!obj) {
2939                 ret = -EINVAL;
2940                 goto done;
2941         }
2942         blob = obj_to_blob(obj);
2943
2944         if (out_resp->length == blob->length) {
2945                 blob_ptr = (void *)(unsigned long)out_resp->data;
2946                 if (copyout(blob->data, blob_ptr, blob->length)){
2947                         ret = -EFAULT;
2948                         goto done;
2949                 }
2950         }
2951         out_resp->length = blob->length;
2952
2953 done:
2954         lockmgr(&dev->mode_config.lock, LK_RELEASE);
2955         return ret;
2956 }
2957
2958 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2959                                             struct edid *edid)
2960 {
2961         struct drm_device *dev = connector->dev;
2962         int ret = 0, size;
2963
2964         if (connector->edid_blob_ptr)
2965                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2966
2967         /* Delete edid, when there is none. */
2968         if (!edid) {
2969                 connector->edid_blob_ptr = NULL;
2970                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2971                 return ret;
2972         }
2973
2974         size = EDID_LENGTH * (1 + edid->extensions);
2975         connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2976                                                             size, edid);
2977
2978         ret = drm_connector_property_set_value(connector,
2979                                                dev->mode_config.edid_property,
2980                                                connector->edid_blob_ptr->base.id);
2981
2982         return ret;
2983 }
2984
2985 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2986                                        void *data, struct drm_file *file_priv)
2987 {
2988         struct drm_mode_connector_set_property *out_resp = data;
2989         struct drm_mode_object *obj;
2990         struct drm_property *property;
2991         struct drm_connector *connector;
2992         int ret = -EINVAL;
2993         int i;
2994
2995         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2996                 return -EINVAL;
2997
2998         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
2999
3000         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
3001         if (!obj) {
3002                 goto out;
3003         }
3004         connector = obj_to_connector(obj);
3005
3006         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
3007                 if (connector->property_ids[i] == out_resp->prop_id)
3008                         break;
3009         }
3010
3011         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
3012                 goto out;
3013         }
3014
3015         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3016         if (!obj) {
3017                 goto out;
3018         }
3019         property = obj_to_property(obj);
3020
3021         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3022                 goto out;
3023
3024         if (property->flags & DRM_MODE_PROP_RANGE) {
3025                 if (out_resp->value < property->values[0])
3026                         goto out;
3027
3028                 if (out_resp->value > property->values[1])
3029                         goto out;
3030         } else {
3031                 int found = 0;
3032                 for (i = 0; i < property->num_values; i++) {
3033                         if (property->values[i] == out_resp->value) {
3034                                 found = 1;
3035                                 break;
3036                         }
3037                 }
3038                 if (!found) {
3039                         goto out;
3040                 }
3041         }
3042
3043         /* Do DPMS ourselves */
3044         if (property == connector->dev->mode_config.dpms_property) {
3045                 if (connector->funcs->dpms)
3046                         (*connector->funcs->dpms)(connector, (int) out_resp->value);
3047                 ret = 0;
3048         } else if (connector->funcs->set_property)
3049                 ret = connector->funcs->set_property(connector, property, out_resp->value);
3050
3051         /* store the property value if successful */
3052         if (!ret)
3053                 drm_connector_property_set_value(connector, property, out_resp->value);
3054 out:
3055         lockmgr(&dev->mode_config.lock, LK_RELEASE);
3056         return ret;
3057 }
3058
3059 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3060                                       struct drm_encoder *encoder)
3061 {
3062         int i;
3063
3064         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3065                 if (connector->encoder_ids[i] == 0) {
3066                         connector->encoder_ids[i] = encoder->base.id;
3067                         return 0;
3068                 }
3069         }
3070         return -ENOMEM;
3071 }
3072
3073 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3074                                     struct drm_encoder *encoder)
3075 {
3076         int i;
3077         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3078                 if (connector->encoder_ids[i] == encoder->base.id) {
3079                         connector->encoder_ids[i] = 0;
3080                         if (connector->encoder == encoder)
3081                                 connector->encoder = NULL;
3082                         break;
3083                 }
3084         }
3085 }
3086
3087 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3088                                   int gamma_size)
3089 {
3090         crtc->gamma_size = gamma_size;
3091
3092         crtc->gamma_store = kmalloc(gamma_size * sizeof(uint16_t) * 3,
3093             DRM_MEM_KMS, M_WAITOK | M_ZERO);
3094
3095         return 0;
3096 }
3097
3098 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3099                              void *data, struct drm_file *file_priv)
3100 {
3101         struct drm_mode_crtc_lut *crtc_lut = data;
3102         struct drm_mode_object *obj;
3103         struct drm_crtc *crtc;
3104         void *r_base, *g_base, *b_base;
3105         int size;
3106         int ret = 0;
3107
3108         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3109                 return -EINVAL;
3110
3111         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
3112         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3113         if (!obj) {
3114                 ret = -EINVAL;
3115                 goto out;
3116         }
3117         crtc = obj_to_crtc(obj);
3118
3119         /* memcpy into gamma store */
3120         if (crtc_lut->gamma_size != crtc->gamma_size) {
3121                 ret = -EINVAL;
3122                 goto out;
3123         }
3124
3125         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3126         r_base = crtc->gamma_store;
3127         if (copyin((void *)(uintptr_t)crtc_lut->red, r_base, size)) {
3128                 ret = -EFAULT;
3129                 goto out;
3130         }
3131
3132         g_base = (char *)r_base + size;
3133         if (copyin((void *)(uintptr_t)crtc_lut->green, g_base, size)) {
3134                 ret = -EFAULT;
3135                 goto out;
3136         }
3137
3138         b_base = (char *)g_base + size;
3139         if (copyin((void *)(uintptr_t)crtc_lut->blue, b_base, size)) {
3140                 ret = -EFAULT;
3141                 goto out;
3142         }
3143
3144         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3145
3146 out:
3147         lockmgr(&dev->mode_config.lock, LK_RELEASE);
3148         return ret;
3149
3150 }
3151
3152 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3153                              void *data, struct drm_file *file_priv)
3154 {
3155         struct drm_mode_crtc_lut *crtc_lut = data;
3156         struct drm_mode_object *obj;
3157         struct drm_crtc *crtc;
3158         void *r_base, *g_base, *b_base;
3159         int size;
3160         int ret = 0;
3161
3162         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3163                 return -EINVAL;
3164
3165         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
3166         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3167         if (!obj) {
3168                 ret = -EINVAL;
3169                 goto out;
3170         }
3171         crtc = obj_to_crtc(obj);
3172
3173         /* memcpy into gamma store */
3174         if (crtc_lut->gamma_size != crtc->gamma_size) {
3175                 ret = -EINVAL;
3176                 goto out;
3177         }
3178
3179         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3180         r_base = crtc->gamma_store;
3181         if (copyout(r_base, (void *)(uintptr_t)crtc_lut->red, size)) {
3182                 ret = -EFAULT;
3183                 goto out;
3184         }
3185
3186         g_base = (char *)r_base + size;
3187         if (copyout(g_base, (void *)(uintptr_t)crtc_lut->green, size)) {
3188                 ret = -EFAULT;
3189                 goto out;
3190         }
3191
3192         b_base = (char *)g_base + size;
3193         if (copyout(b_base, (void *)(uintptr_t)crtc_lut->blue, size)) {
3194                 ret = -EFAULT;
3195                 goto out;
3196         }
3197 out:
3198         lockmgr(&dev->mode_config.lock, LK_RELEASE);
3199         return ret;
3200 }
3201
3202 static void
3203 drm_kms_free(void *arg)
3204 {
3205
3206         drm_free(arg, DRM_MEM_KMS);
3207 }
3208
3209 int drm_mode_page_flip_ioctl(struct drm_device *dev, void *data,
3210     struct drm_file *file_priv)
3211 {
3212         struct drm_mode_crtc_page_flip *page_flip = data;
3213         struct drm_mode_object *obj;
3214         struct drm_crtc *crtc;
3215         struct drm_framebuffer *fb;
3216         struct drm_pending_vblank_event *e = NULL;
3217         int ret = EINVAL;
3218
3219         if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3220             page_flip->reserved != 0)
3221                 return (EINVAL);
3222
3223         lockmgr(&dev->mode_config.lock, LK_EXCLUSIVE);
3224         obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3225         if (!obj)
3226                 goto out;
3227         crtc = obj_to_crtc(obj);
3228
3229         if (crtc->fb == NULL) {
3230                 /* The framebuffer is currently unbound, presumably
3231                  * due to a hotplug event, that userspace has not
3232                  * yet discovered.
3233                  */
3234                 ret = EBUSY;
3235                 goto out;
3236         }
3237
3238         if (crtc->funcs->page_flip == NULL)
3239                 goto out;
3240
3241         obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3242         if (!obj)
3243                 goto out;
3244         fb = obj_to_fb(obj);
3245
3246         if (crtc->mode.hdisplay > fb->width ||
3247             crtc->mode.vdisplay > fb->height ||
3248             crtc->x > fb->width - crtc->mode.hdisplay ||
3249             crtc->y > fb->height - crtc->mode.vdisplay) {
3250                 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n",
3251                               fb->width, fb->height,
3252                               crtc->mode.hdisplay, crtc->mode.vdisplay,
3253                               crtc->x, crtc->y);
3254                 ret = ENOSPC;
3255                 goto out;
3256         }
3257
3258         if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3259                 ret = ENOMEM;
3260                 lockmgr(&dev->event_lock, LK_EXCLUSIVE);
3261                 if (file_priv->event_space < sizeof e->event) {
3262                         lockmgr(&dev->event_lock, LK_RELEASE);
3263                         goto out;
3264                 }
3265                 file_priv->event_space -= sizeof e->event;
3266                 lockmgr(&dev->event_lock, LK_RELEASE);
3267
3268                 e = kmalloc(sizeof *e, DRM_MEM_KMS, M_WAITOK | M_ZERO);
3269
3270                 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3271                 e->event.base.length = sizeof e->event;
3272                 e->event.user_data = page_flip->user_data;
3273                 e->base.event = &e->event.base;
3274                 e->base.file_priv = file_priv;
3275                 e->base.destroy =
3276                         (void (*) (struct drm_pending_event *))drm_kms_free;
3277         }
3278
3279         ret = -crtc->funcs->page_flip(crtc, fb, e);
3280         if (ret != 0) {
3281                 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3282                         lockmgr(&dev->event_lock, LK_EXCLUSIVE);
3283                         file_priv->event_space += sizeof e->event;
3284                         lockmgr(&dev->event_lock, LK_RELEASE);
3285                         drm_free(e, DRM_MEM_KMS);
3286                 }
3287         }
3288
3289 out:
3290         lockmgr(&dev->mode_config.lock, LK_RELEASE);
3291         return (ret);
3292 }
3293
3294 void drm_mode_config_reset(struct drm_device *dev)
3295 {
3296         struct drm_crtc *crtc;
3297         struct drm_encoder *encoder;
3298         struct drm_connector *connector;
3299
3300         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3301                 if (crtc->funcs->reset)
3302                         crtc->funcs->reset(crtc);
3303
3304         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3305                 if (encoder->funcs->reset)
3306                         encoder->funcs->reset(encoder);
3307
3308         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3309                 if (connector->funcs->reset)
3310                         connector->funcs->reset(connector);
3311 }
3312
3313 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3314                                void *data, struct drm_file *file_priv)
3315 {
3316         struct drm_mode_create_dumb *args = data;
3317
3318         if (!dev->driver->dumb_create)
3319                 return -ENOTSUP;
3320         return dev->driver->dumb_create(file_priv, dev, args);
3321 }
3322
3323 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3324                              void *data, struct drm_file *file_priv)
3325 {
3326         struct drm_mode_map_dumb *args = data;
3327
3328         /* call driver ioctl to get mmap offset */
3329         if (!dev->driver->dumb_map_offset)
3330                 return -ENOTSUP;
3331
3332         return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3333 }
3334
3335 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3336                                 void *data, struct drm_file *file_priv)
3337 {
3338         struct drm_mode_destroy_dumb *args = data;
3339
3340         if (!dev->driver->dumb_destroy)
3341                 return -ENOTSUP;
3342
3343         return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3344 }
3345
3346 /*
3347  * Just need to support RGB formats here for compat with code that doesn't
3348  * use pixel formats directly yet.
3349  */
3350 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3351                           int *bpp)
3352 {
3353         switch (format) {
3354         case DRM_FORMAT_RGB332:
3355         case DRM_FORMAT_BGR233:
3356                 *depth = 8;
3357                 *bpp = 8;
3358                 break;
3359         case DRM_FORMAT_XRGB1555:
3360         case DRM_FORMAT_XBGR1555:
3361         case DRM_FORMAT_RGBX5551:
3362         case DRM_FORMAT_BGRX5551:
3363         case DRM_FORMAT_ARGB1555:
3364         case DRM_FORMAT_ABGR1555:
3365         case DRM_FORMAT_RGBA5551:
3366         case DRM_FORMAT_BGRA5551:
3367                 *depth = 15;
3368                 *bpp = 16;
3369                 break;
3370         case DRM_FORMAT_RGB565:
3371         case DRM_FORMAT_BGR565:
3372                 *depth = 16;
3373                 *bpp = 16;
3374                 break;
3375         case DRM_FORMAT_RGB888:
3376         case DRM_FORMAT_BGR888:
3377                 *depth = 24;
3378                 *bpp = 24;
3379                 break;
3380         case DRM_FORMAT_XRGB8888:
3381         case DRM_FORMAT_XBGR8888:
3382         case DRM_FORMAT_RGBX8888:
3383         case DRM_FORMAT_BGRX8888:
3384                 *depth = 24;
3385                 *bpp = 32;
3386                 break;
3387         case DRM_FORMAT_XRGB2101010:
3388         case DRM_FORMAT_XBGR2101010:
3389         case DRM_FORMAT_RGBX1010102:
3390         case DRM_FORMAT_BGRX1010102:
3391         case DRM_FORMAT_ARGB2101010:
3392         case DRM_FORMAT_ABGR2101010:
3393         case DRM_FORMAT_RGBA1010102:
3394         case DRM_FORMAT_BGRA1010102:
3395                 *depth = 30;
3396                 *bpp = 32;
3397                 break;
3398         case DRM_FORMAT_ARGB8888:
3399         case DRM_FORMAT_ABGR8888:
3400         case DRM_FORMAT_RGBA8888:
3401         case DRM_FORMAT_BGRA8888:
3402                 *depth = 32;
3403                 *bpp = 32;
3404                 break;
3405         default:
3406                 DRM_DEBUG_KMS("unsupported pixel format\n");
3407                 *depth = 0;
3408                 *bpp = 0;
3409                 break;
3410         }
3411 }