SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/gpu/drm/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 #include <linux/list.h>
  33 #include <linux/slab.h>
  34 #include "drm.h"
  35 #include "drmP.h"
  36 #include "drm_crtc.h"
  37
  38 struct drm_prop_enum_list {
  39         int type;
  40         char *name;
  41 };
  42
  43 /* Avoid boilerplate.  I'm tired of typing. */
  44 #define DRM_ENUM_NAME_FN(fnname, list)                          \
  45         char *fnname(int val)                                   \
  46         {                                                       \
  47                 int i;                                          \
  48                 for (i = 0; i < ARRAY_SIZE(list); i++) {        \
  49                         if (list[i].type == val)                \
  50                                 return list[i].name;            \
  51                 }                                               \
  52                 return "(unknown)";                             \
  53         }
  54
  55 /*
  56  * Global properties
  57  */
  58 static struct drm_prop_enum_list drm_dpms_enum_list[] =
  59 {       { DRM_MODE_DPMS_ON, "On" },
  60         { DRM_MODE_DPMS_STANDBY, "Standby" },
  61         { DRM_MODE_DPMS_SUSPEND, "Suspend" },
  62         { DRM_MODE_DPMS_OFF, "Off" }
  63 };
  64
  65 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
  66
  67 /*
  68  * Optional properties
  69  */
  70 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
  71 {
  72         { DRM_MODE_SCALE_NONE, "None" },
  73         { DRM_MODE_SCALE_FULLSCREEN, "Full" },
  74         { DRM_MODE_SCALE_CENTER, "Center" },
  75         { DRM_MODE_SCALE_ASPECT, "Full aspect" },
  76 };
  77
  78 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
  79 {
  80         { DRM_MODE_DITHERING_OFF, "Off" },
  81         { DRM_MODE_DITHERING_ON, "On" },
  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, "9-pin DIN", 0 },
 158         { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
 159         { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
 160         { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
 161         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
 162         { DRM_MODE_CONNECTOR_eDP, "Embedded DisplayPort", 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         snprintf(buf, 32, "%s-%d",
 178                  drm_encoder_enum_list[encoder->encoder_type].name,
 179                  encoder->base.id);
 180         return buf;
 181 }
 182 EXPORT_SYMBOL(drm_get_encoder_name);
 183
 184 char *drm_get_connector_name(struct drm_connector *connector)
 185 {
 186         static char buf[32];
 187
 188         snprintf(buf, 32, "%s-%d",
 189                  drm_connector_enum_list[connector->connector_type].name,
 190                  connector->connector_type_id);
 191         return buf;
 192 }
 193 EXPORT_SYMBOL(drm_get_connector_name);
 194
 195 char *drm_get_connector_status_name(enum drm_connector_status status)
 196 {
 197         if (status == connector_status_connected)
 198                 return "connected";
 199         else if (status == connector_status_disconnected)
 200                 return "disconnected";
 201         else
 202                 return "unknown";
 203 }
 204
 205 /**
 206  * drm_mode_object_get - allocate a new identifier
 207  * @dev: DRM device
 208  * @ptr: object pointer, used to generate unique ID
 209  * @type: object type
 210  *
 211  * LOCKING:
 212  *
 213  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 214  * for tracking modes, CRTCs and connectors.
 215  *
 216  * RETURNS:
 217  * New unique (relative to other objects in @dev) integer identifier for the
 218  * object.
 219  */
 220 static int drm_mode_object_get(struct drm_device *dev,
 221                                struct drm_mode_object *obj, uint32_t obj_type)
 222 {
 223         int new_id = 0;
 224         int ret;
 225
 226 again:
 227         if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
 228                 DRM_ERROR("Ran out memory getting a mode number\n");
 229                 return -EINVAL;
 230         }
 231
 232         mutex_lock(&dev->mode_config.idr_mutex);
 233         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
 234         mutex_unlock(&dev->mode_config.idr_mutex);
 235         if (ret == -EAGAIN)
 236                 goto again;
 237
 238         obj->id = new_id;
 239         obj->type = obj_type;
 240         return 0;
 241 }
 242
 243 /**
 244  * drm_mode_object_put - free an identifer
 245  * @dev: DRM device
 246  * @id: ID to free
 247  *
 248  * LOCKING:
 249  * Caller must hold DRM mode_config lock.
 250  *
 251  * Free @id from @dev's unique identifier pool.
 252  */
 253 static void drm_mode_object_put(struct drm_device *dev,
 254                                 struct drm_mode_object *object)
 255 {
 256         mutex_lock(&dev->mode_config.idr_mutex);
 257         idr_remove(&dev->mode_config.crtc_idr, object->id);
 258         mutex_unlock(&dev->mode_config.idr_mutex);
 259 }
 260
 261 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 262                 uint32_t id, uint32_t type)
 263 {
 264         struct drm_mode_object *obj = NULL;
 265
 266         mutex_lock(&dev->mode_config.idr_mutex);
 267         obj = idr_find(&dev->mode_config.crtc_idr, id);
 268         if (!obj || (obj->type != type) || (obj->id != id))
 269                 obj = NULL;
 270         mutex_unlock(&dev->mode_config.idr_mutex);
 271
 272         return obj;
 273 }
 274 EXPORT_SYMBOL(drm_mode_object_find);
 275
 276 /**
 277  * drm_framebuffer_init - initialize a framebuffer
 278  * @dev: DRM device
 279  *
 280  * LOCKING:
 281  * Caller must hold mode config lock.
 282  *
 283  * Allocates an ID for the framebuffer's parent mode object, sets its mode
 284  * functions & device file and adds it to the master fd list.
 285  *
 286  * RETURNS:
 287  * Zero on success, error code on failure.
 288  */
 289 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 290                          const struct drm_framebuffer_funcs *funcs)
 291 {
 292         int ret;
 293
 294         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
 295         if (ret) {
 296                 return ret;
 297         }
 298
 299         fb->dev = dev;
 300         fb->funcs = funcs;
 301         dev->mode_config.num_fb++;
 302         list_add(&fb->head, &dev->mode_config.fb_list);
 303
 304         return 0;
 305 }
 306 EXPORT_SYMBOL(drm_framebuffer_init);
 307
 308 /**
 309  * drm_framebuffer_cleanup - remove a framebuffer object
 310  * @fb: framebuffer to remove
 311  *
 312  * LOCKING:
 313  * Caller must hold mode config lock.
 314  *
 315  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 316  * it, setting it to NULL.
 317  */
 318 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 319 {
 320         struct drm_device *dev = fb->dev;
 321         struct drm_crtc *crtc;
 322         struct drm_mode_set set;
 323         int ret;
 324
 325         /* remove from any CRTC */
 326         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 327                 if (crtc->fb == fb) {
 328                         /* should turn off the crtc */
 329                         memset(&set, 0, sizeof(struct drm_mode_set));
 330                         set.crtc = crtc;
 331                         set.fb = NULL;
 332                         ret = crtc->funcs->set_config(&set);
 333                         if (ret)
 334                                 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
 335                 }
 336         }
 337
 338         drm_mode_object_put(dev, &fb->base);
 339         list_del(&fb->head);
 340         dev->mode_config.num_fb--;
 341 }
 342 EXPORT_SYMBOL(drm_framebuffer_cleanup);
 343
 344 /**
 345  * drm_crtc_init - Initialise a new CRTC object
 346  * @dev: DRM device
 347  * @crtc: CRTC object to init
 348  * @funcs: callbacks for the new CRTC
 349  *
 350  * LOCKING:
 351  * Caller must hold mode config lock.
 352  *
 353  * Inits a new object created as base part of an driver crtc object.
 354  */
 355 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 356                    const struct drm_crtc_funcs *funcs)
 357 {
 358         crtc->dev = dev;
 359         crtc->funcs = funcs;
 360
 361         mutex_lock(&dev->mode_config.mutex);
 362         drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
 363
 364         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
 365         dev->mode_config.num_crtc++;
 366         mutex_unlock(&dev->mode_config.mutex);
 367 }
 368 EXPORT_SYMBOL(drm_crtc_init);
 369
 370 /**
 371  * drm_crtc_cleanup - Cleans up the core crtc usage.
 372  * @crtc: CRTC to cleanup
 373  *
 374  * LOCKING:
 375  * Caller must hold mode config lock.
 376  *
 377  * Cleanup @crtc. Removes from drm modesetting space
 378  * does NOT free object, caller does that.
 379  */
 380 void drm_crtc_cleanup(struct drm_crtc *crtc)
 381 {
 382         struct drm_device *dev = crtc->dev;
 383
 384         if (crtc->gamma_store) {
 385                 kfree(crtc->gamma_store);
 386                 crtc->gamma_store = NULL;
 387         }
 388
 389         drm_mode_object_put(dev, &crtc->base);
 390         list_del(&crtc->head);
 391         dev->mode_config.num_crtc--;
 392 }
 393 EXPORT_SYMBOL(drm_crtc_cleanup);
 394
 395 /**
 396  * drm_mode_probed_add - add a mode to a connector's probed mode list
 397  * @connector: connector the new mode
 398  * @mode: mode data
 399  *
 400  * LOCKING:
 401  * Caller must hold mode config lock.
 402  *
 403  * Add @mode to @connector's mode list for later use.
 404  */
 405 void drm_mode_probed_add(struct drm_connector *connector,
 406                          struct drm_display_mode *mode)
 407 {
 408         list_add(&mode->head, &connector->probed_modes);
 409 }
 410 EXPORT_SYMBOL(drm_mode_probed_add);
 411
 412 /**
 413  * drm_mode_remove - remove and free a mode
 414  * @connector: connector list to modify
 415  * @mode: mode to remove
 416  *
 417  * LOCKING:
 418  * Caller must hold mode config lock.
 419  *
 420  * Remove @mode from @connector's mode list, then free it.
 421  */
 422 void drm_mode_remove(struct drm_connector *connector,
 423                      struct drm_display_mode *mode)
 424 {
 425         list_del(&mode->head);
 426         kfree(mode);
 427 }
 428 EXPORT_SYMBOL(drm_mode_remove);
 429
 430 /**
 431  * drm_connector_init - Init a preallocated connector
 432  * @dev: DRM device
 433  * @connector: the connector to init
 434  * @funcs: callbacks for this connector
 435  * @name: user visible name of the connector
 436  *
 437  * LOCKING:
 438  * Caller must hold @dev's mode_config lock.
 439  *
 440  * Initialises a preallocated connector. Connectors should be
 441  * subclassed as part of driver connector objects.
 442  */
 443 void drm_connector_init(struct drm_device *dev,
 444                      struct drm_connector *connector,
 445                      const struct drm_connector_funcs *funcs,
 446                      int connector_type)
 447 {
 448         mutex_lock(&dev->mode_config.mutex);
 449
 450         connector->dev = dev;
 451         connector->funcs = funcs;
 452         drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
 453         connector->connector_type = connector_type;
 454         connector->connector_type_id =
 455                 ++drm_connector_enum_list[connector_type].count; /* TODO */
 456         INIT_LIST_HEAD(&connector->user_modes);
 457         INIT_LIST_HEAD(&connector->probed_modes);
 458         INIT_LIST_HEAD(&connector->modes);
 459         connector->edid_blob_ptr = NULL;
 460
 461         list_add_tail(&connector->head, &dev->mode_config.connector_list);
 462         dev->mode_config.num_connector++;
 463
 464         drm_connector_attach_property(connector,
 465                                       dev->mode_config.edid_property, 0);
 466
 467         drm_connector_attach_property(connector,
 468                                       dev->mode_config.dpms_property, 0);
 469
 470         mutex_unlock(&dev->mode_config.mutex);
 471 }
 472 EXPORT_SYMBOL(drm_connector_init);
 473
 474 /**
 475  * drm_connector_cleanup - cleans up an initialised connector
 476  * @connector: connector to cleanup
 477  *
 478  * LOCKING:
 479  * Caller must hold @dev's mode_config lock.
 480  *
 481  * Cleans up the connector but doesn't free the object.
 482  */
 483 void drm_connector_cleanup(struct drm_connector *connector)
 484 {
 485         struct drm_device *dev = connector->dev;
 486         struct drm_display_mode *mode, *t;
 487
 488         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
 489                 drm_mode_remove(connector, mode);
 490
 491         list_for_each_entry_safe(mode, t, &connector->modes, head)
 492                 drm_mode_remove(connector, mode);
 493
 494         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
 495                 drm_mode_remove(connector, mode);
 496
 497         kfree(connector->fb_helper_private);
 498         mutex_lock(&dev->mode_config.mutex);
 499         drm_mode_object_put(dev, &connector->base);
 500         list_del(&connector->head);
 501         mutex_unlock(&dev->mode_config.mutex);
 502 }
 503 EXPORT_SYMBOL(drm_connector_cleanup);
 504
 505 void drm_encoder_init(struct drm_device *dev,
 506                       struct drm_encoder *encoder,
 507                       const struct drm_encoder_funcs *funcs,
 508                       int encoder_type)
 509 {
 510         mutex_lock(&dev->mode_config.mutex);
 511
 512         encoder->dev = dev;
 513
 514         drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
 515         encoder->encoder_type = encoder_type;
 516         encoder->funcs = funcs;
 517
 518         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
 519         dev->mode_config.num_encoder++;
 520
 521         mutex_unlock(&dev->mode_config.mutex);
 522 }
 523 EXPORT_SYMBOL(drm_encoder_init);
 524
 525 void drm_encoder_cleanup(struct drm_encoder *encoder)
 526 {
 527         struct drm_device *dev = encoder->dev;
 528         mutex_lock(&dev->mode_config.mutex);
 529         drm_mode_object_put(dev, &encoder->base);
 530         list_del(&encoder->head);
 531         mutex_unlock(&dev->mode_config.mutex);
 532 }
 533 EXPORT_SYMBOL(drm_encoder_cleanup);
 534
 535 /**
 536  * drm_mode_create - create a new display mode
 537  * @dev: DRM device
 538  *
 539  * LOCKING:
 540  * Caller must hold DRM mode_config lock.
 541  *
 542  * Create a new drm_display_mode, give it an ID, and return it.
 543  *
 544  * RETURNS:
 545  * Pointer to new mode on success, NULL on error.
 546  */
 547 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
 548 {
 549         struct drm_display_mode *nmode;
 550
 551         nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
 552         if (!nmode)
 553                 return NULL;
 554
 555         drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
 556         return nmode;
 557 }
 558 EXPORT_SYMBOL(drm_mode_create);
 559
 560 /**
 561  * drm_mode_destroy - remove a mode
 562  * @dev: DRM device
 563  * @mode: mode to remove
 564  *
 565  * LOCKING:
 566  * Caller must hold mode config lock.
 567  *
 568  * Free @mode's unique identifier, then free it.
 569  */
 570 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
 571 {
 572         drm_mode_object_put(dev, &mode->base);
 573
 574         kfree(mode);
 575 }
 576 EXPORT_SYMBOL(drm_mode_destroy);
 577
 578 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
 579 {
 580         struct drm_property *edid;
 581         struct drm_property *dpms;
 582         int i;
 583
 584         /*
 585          * Standard properties (apply to all connectors)
 586          */
 587         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
 588                                    DRM_MODE_PROP_IMMUTABLE,
 589                                    "EDID", 0);
 590         dev->mode_config.edid_property = edid;
 591
 592         dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 593                                    "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
 594         for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
 595                 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
 596                                       drm_dpms_enum_list[i].name);
 597         dev->mode_config.dpms_property = dpms;
 598
 599         return 0;
 600 }
 601
 602 /**
 603  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 604  * @dev: DRM device
 605  *
 606  * Called by a driver the first time a DVI-I connector is made.
 607  */
 608 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
 609 {
 610         struct drm_property *dvi_i_selector;
 611         struct drm_property *dvi_i_subconnector;
 612         int i;
 613
 614         if (dev->mode_config.dvi_i_select_subconnector_property)
 615                 return 0;
 616
 617         dvi_i_selector =
 618                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 619                                     "select subconnector",
 620                                     ARRAY_SIZE(drm_dvi_i_select_enum_list));
 621         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
 622                 drm_property_add_enum(dvi_i_selector, i,
 623                                       drm_dvi_i_select_enum_list[i].type,
 624                                       drm_dvi_i_select_enum_list[i].name);
 625         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
 626
 627         dvi_i_subconnector =
 628                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 629                                     DRM_MODE_PROP_IMMUTABLE,
 630                                     "subconnector",
 631                                     ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
 632         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
 633                 drm_property_add_enum(dvi_i_subconnector, i,
 634                                       drm_dvi_i_subconnector_enum_list[i].type,
 635                                       drm_dvi_i_subconnector_enum_list[i].name);
 636         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
 637
 638         return 0;
 639 }
 640 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
 641
 642 /**
 643  * drm_create_tv_properties - create TV specific connector properties
 644  * @dev: DRM device
 645  * @num_modes: number of different TV formats (modes) supported
 646  * @modes: array of pointers to strings containing name of each format
 647  *
 648  * Called by a driver's TV initialization routine, this function creates
 649  * the TV specific connector properties for a given device.  Caller is
 650  * responsible for allocating a list of format names and passing them to
 651  * this routine.
 652  */
 653 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
 654                                   char *modes[])
 655 {
 656         struct drm_property *tv_selector;
 657         struct drm_property *tv_subconnector;
 658         int i;
 659
 660         if (dev->mode_config.tv_select_subconnector_property)
 661                 return 0;
 662
 663         /*
 664          * Basic connector properties
 665          */
 666         tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 667                                           "select subconnector",
 668                                           ARRAY_SIZE(drm_tv_select_enum_list));
 669         for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
 670                 drm_property_add_enum(tv_selector, i,
 671                                       drm_tv_select_enum_list[i].type,
 672                                       drm_tv_select_enum_list[i].name);
 673         dev->mode_config.tv_select_subconnector_property = tv_selector;
 674
 675         tv_subconnector =
 676                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 677                                     DRM_MODE_PROP_IMMUTABLE, "subconnector",
 678                                     ARRAY_SIZE(drm_tv_subconnector_enum_list));
 679         for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
 680                 drm_property_add_enum(tv_subconnector, i,
 681                                       drm_tv_subconnector_enum_list[i].type,
 682                                       drm_tv_subconnector_enum_list[i].name);
 683         dev->mode_config.tv_subconnector_property = tv_subconnector;
 684
 685         /*
 686          * Other, TV specific properties: margins & TV modes.
 687          */
 688         dev->mode_config.tv_left_margin_property =
 689                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 690                                     "left margin", 2);
 691         dev->mode_config.tv_left_margin_property->values[0] = 0;
 692         dev->mode_config.tv_left_margin_property->values[1] = 100;
 693
 694         dev->mode_config.tv_right_margin_property =
 695                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 696                                     "right margin", 2);
 697         dev->mode_config.tv_right_margin_property->values[0] = 0;
 698         dev->mode_config.tv_right_margin_property->values[1] = 100;
 699
 700         dev->mode_config.tv_top_margin_property =
 701                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 702                                     "top margin", 2);
 703         dev->mode_config.tv_top_margin_property->values[0] = 0;
 704         dev->mode_config.tv_top_margin_property->values[1] = 100;
 705
 706         dev->mode_config.tv_bottom_margin_property =
 707                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 708                                     "bottom margin", 2);
 709         dev->mode_config.tv_bottom_margin_property->values[0] = 0;
 710         dev->mode_config.tv_bottom_margin_property->values[1] = 100;
 711
 712         dev->mode_config.tv_mode_property =
 713                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 714                                     "mode", num_modes);
 715         for (i = 0; i < num_modes; i++)
 716                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
 717                                       i, modes[i]);
 718
 719         dev->mode_config.tv_brightness_property =
 720                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 721                                     "brightness", 2);
 722         dev->mode_config.tv_brightness_property->values[0] = 0;
 723         dev->mode_config.tv_brightness_property->values[1] = 100;
 724
 725         dev->mode_config.tv_contrast_property =
 726                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 727                                     "contrast", 2);
 728         dev->mode_config.tv_contrast_property->values[0] = 0;
 729         dev->mode_config.tv_contrast_property->values[1] = 100;
 730
 731         dev->mode_config.tv_flicker_reduction_property =
 732                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 733                                     "flicker reduction", 2);
 734         dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
 735         dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
 736
 737         dev->mode_config.tv_overscan_property =
 738                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 739                                     "overscan", 2);
 740         dev->mode_config.tv_overscan_property->values[0] = 0;
 741         dev->mode_config.tv_overscan_property->values[1] = 100;
 742
 743         dev->mode_config.tv_saturation_property =
 744                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 745                                     "saturation", 2);
 746         dev->mode_config.tv_saturation_property->values[0] = 0;
 747         dev->mode_config.tv_saturation_property->values[1] = 100;
 748
 749         dev->mode_config.tv_hue_property =
 750                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 751                                     "hue", 2);
 752         dev->mode_config.tv_hue_property->values[0] = 0;
 753         dev->mode_config.tv_hue_property->values[1] = 100;
 754
 755         return 0;
 756 }
 757 EXPORT_SYMBOL(drm_mode_create_tv_properties);
 758
 759 /**
 760  * drm_mode_create_scaling_mode_property - create scaling mode property
 761  * @dev: DRM device
 762  *
 763  * Called by a driver the first time it's needed, must be attached to desired
 764  * connectors.
 765  */
 766 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 767 {
 768         struct drm_property *scaling_mode;
 769         int i;
 770
 771         if (dev->mode_config.scaling_mode_property)
 772                 return 0;
 773
 774         scaling_mode =
 775                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
 776                                     ARRAY_SIZE(drm_scaling_mode_enum_list));
 777         for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
 778                 drm_property_add_enum(scaling_mode, i,
 779                                       drm_scaling_mode_enum_list[i].type,
 780                                       drm_scaling_mode_enum_list[i].name);
 781
 782         dev->mode_config.scaling_mode_property = scaling_mode;
 783
 784         return 0;
 785 }
 786 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
 787
 788 /**
 789  * drm_mode_create_dithering_property - create dithering property
 790  * @dev: DRM device
 791  *
 792  * Called by a driver the first time it's needed, must be attached to desired
 793  * connectors.
 794  */
 795 int drm_mode_create_dithering_property(struct drm_device *dev)
 796 {
 797         struct drm_property *dithering_mode;
 798         int i;
 799
 800         if (dev->mode_config.dithering_mode_property)
 801                 return 0;
 802
 803         dithering_mode =
 804                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
 805                                     ARRAY_SIZE(drm_dithering_mode_enum_list));
 806         for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
 807                 drm_property_add_enum(dithering_mode, i,
 808                                       drm_dithering_mode_enum_list[i].type,
 809                                       drm_dithering_mode_enum_list[i].name);
 810         dev->mode_config.dithering_mode_property = dithering_mode;
 811
 812         return 0;
 813 }
 814 EXPORT_SYMBOL(drm_mode_create_dithering_property);
 815
 816 /**
 817  * drm_mode_create_dirty_property - create dirty property
 818  * @dev: DRM device
 819  *
 820  * Called by a driver the first time it's needed, must be attached to desired
 821  * connectors.
 822  */
 823 int drm_mode_create_dirty_info_property(struct drm_device *dev)
 824 {
 825         struct drm_property *dirty_info;
 826         int i;
 827
 828         if (dev->mode_config.dirty_info_property)
 829                 return 0;
 830
 831         dirty_info =
 832                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 833                                     DRM_MODE_PROP_IMMUTABLE,
 834                                     "dirty",
 835                                     ARRAY_SIZE(drm_dirty_info_enum_list));
 836         for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
 837                 drm_property_add_enum(dirty_info, i,
 838                                       drm_dirty_info_enum_list[i].type,
 839                                       drm_dirty_info_enum_list[i].name);
 840         dev->mode_config.dirty_info_property = dirty_info;
 841
 842         return 0;
 843 }
 844 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
 845
 846 /**
 847  * drm_mode_config_init - initialize DRM mode_configuration structure
 848  * @dev: DRM device
 849  *
 850  * LOCKING:
 851  * None, should happen single threaded at init time.
 852  *
 853  * Initialize @dev's mode_config structure, used for tracking the graphics
 854  * configuration of @dev.
 855  */
 856 void drm_mode_config_init(struct drm_device *dev)
 857 {
 858         mutex_init(&dev->mode_config.mutex);
 859         mutex_init(&dev->mode_config.idr_mutex);
 860         INIT_LIST_HEAD(&dev->mode_config.fb_list);
 861         INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
 862         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
 863         INIT_LIST_HEAD(&dev->mode_config.connector_list);
 864         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 865         INIT_LIST_HEAD(&dev->mode_config.property_list);
 866         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
 867         idr_init(&dev->mode_config.crtc_idr);
 868
 869         mutex_lock(&dev->mode_config.mutex);
 870         drm_mode_create_standard_connector_properties(dev);
 871         mutex_unlock(&dev->mode_config.mutex);
 872
 873         /* Just to be sure */
 874         dev->mode_config.num_fb = 0;
 875         dev->mode_config.num_connector = 0;
 876         dev->mode_config.num_crtc = 0;
 877         dev->mode_config.num_encoder = 0;
 878 }
 879 EXPORT_SYMBOL(drm_mode_config_init);
 880
 881 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
 882 {
 883         uint32_t total_objects = 0;
 884
 885         total_objects += dev->mode_config.num_crtc;
 886         total_objects += dev->mode_config.num_connector;
 887         total_objects += dev->mode_config.num_encoder;
 888
 889         if (total_objects == 0)
 890                 return -EINVAL;
 891
 892         group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
 893         if (!group->id_list)
 894                 return -ENOMEM;
 895
 896         group->num_crtcs = 0;
 897         group->num_connectors = 0;
 898         group->num_encoders = 0;
 899         return 0;
 900 }
 901
 902 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 903                                      struct drm_mode_group *group)
 904 {
 905         struct drm_crtc *crtc;
 906         struct drm_encoder *encoder;
 907         struct drm_connector *connector;
 908         int ret;
 909
 910         if ((ret = drm_mode_group_init(dev, group)))
 911                 return ret;
 912
 913         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 914                 group->id_list[group->num_crtcs++] = crtc->base.id;
 915
 916         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 917                 group->id_list[group->num_crtcs + group->num_encoders++] =
 918                 encoder->base.id;
 919
 920         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 921                 group->id_list[group->num_crtcs + group->num_encoders +
 922                                group->num_connectors++] = connector->base.id;
 923
 924         return 0;
 925 }
 926
 927 /**
 928  * drm_mode_config_cleanup - free up DRM mode_config info
 929  * @dev: DRM device
 930  *
 931  * LOCKING:
 932  * Caller must hold mode config lock.
 933  *
 934  * Free up all the connectors and CRTCs associated with this DRM device, then
 935  * free up the framebuffers and associated buffer objects.
 936  *
 937  * FIXME: cleanup any dangling user buffer objects too
 938  */
 939 void drm_mode_config_cleanup(struct drm_device *dev)
 940 {
 941         struct drm_connector *connector, *ot;
 942         struct drm_crtc *crtc, *ct;
 943         struct drm_encoder *encoder, *enct;
 944         struct drm_framebuffer *fb, *fbt;
 945         struct drm_property *property, *pt;
 946
 947         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
 948                                  head) {
 949                 encoder->funcs->destroy(encoder);
 950         }
 951
 952         list_for_each_entry_safe(connector, ot,
 953                                  &dev->mode_config.connector_list, head) {
 954                 connector->funcs->destroy(connector);
 955         }
 956
 957         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
 958                                  head) {
 959                 drm_property_destroy(dev, property);
 960         }
 961
 962         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
 963                 fb->funcs->destroy(fb);
 964         }
 965
 966         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
 967                 crtc->funcs->destroy(crtc);
 968         }
 969
 970 }
 971 EXPORT_SYMBOL(drm_mode_config_cleanup);
 972
 973 /**
 974  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
 975  * @out: drm_mode_modeinfo struct to return to the user
 976  * @in: drm_display_mode to use
 977  *
 978  * LOCKING:
 979  * None.
 980  *
 981  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
 982  * the user.
 983  */
 984 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
 985                                struct drm_display_mode *in)
 986 {
 987         out->clock = in->clock;
 988         out->hdisplay = in->hdisplay;
 989         out->hsync_start = in->hsync_start;
 990         out->hsync_end = in->hsync_end;
 991         out->htotal = in->htotal;
 992         out->hskew = in->hskew;
 993         out->vdisplay = in->vdisplay;
 994         out->vsync_start = in->vsync_start;
 995         out->vsync_end = in->vsync_end;
 996         out->vtotal = in->vtotal;
 997         out->vscan = in->vscan;
 998         out->vrefresh = in->vrefresh;
 999         out->flags = in->flags;
1000         out->type = in->type;
1001         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1002         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1003 }
1004
1005 /**
1006  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1007  * @out: drm_display_mode to return to the user
1008  * @in: drm_mode_modeinfo to use
1009  *
1010  * LOCKING:
1011  * None.
1012  *
1013  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1014  * the caller.
1015  */
1016 void drm_crtc_convert_umode(struct drm_display_mode *out,
1017                             struct drm_mode_modeinfo *in)
1018 {
1019         out->clock = in->clock;
1020         out->hdisplay = in->hdisplay;
1021         out->hsync_start = in->hsync_start;
1022         out->hsync_end = in->hsync_end;
1023         out->htotal = in->htotal;
1024         out->hskew = in->hskew;
1025         out->vdisplay = in->vdisplay;
1026         out->vsync_start = in->vsync_start;
1027         out->vsync_end = in->vsync_end;
1028         out->vtotal = in->vtotal;
1029         out->vscan = in->vscan;
1030         out->vrefresh = in->vrefresh;
1031         out->flags = in->flags;
1032         out->type = in->type;
1033         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1034         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1035 }
1036
1037 /**
1038  * drm_mode_getresources - get graphics configuration
1039  * @inode: inode from the ioctl
1040  * @filp: file * from the ioctl
1041  * @cmd: cmd from ioctl
1042  * @arg: arg from ioctl
1043  *
1044  * LOCKING:
1045  * Takes mode config lock.
1046  *
1047  * Construct a set of configuration description structures and return
1048  * them to the user, including CRTC, connector and framebuffer configuration.
1049  *
1050  * Called by the user via ioctl.
1051  *
1052  * RETURNS:
1053  * Zero on success, errno on failure.
1054  */
1055 int drm_mode_getresources(struct drm_device *dev, void *data,
1056                           struct drm_file *file_priv)
1057 {
1058         struct drm_mode_card_res *card_res = data;
1059         struct list_head *lh;
1060         struct drm_framebuffer *fb;
1061         struct drm_connector *connector;
1062         struct drm_crtc *crtc;
1063         struct drm_encoder *encoder;
1064         int ret = 0;
1065         int connector_count = 0;
1066         int crtc_count = 0;
1067         int fb_count = 0;
1068         int encoder_count = 0;
1069         int copied = 0, i;
1070         uint32_t __user *fb_id;
1071         uint32_t __user *crtc_id;
1072         uint32_t __user *connector_id;
1073         uint32_t __user *encoder_id;
1074         struct drm_mode_group *mode_group;
1075
1076         mutex_lock(&dev->mode_config.mutex);
1077
1078         /*
1079          * For the non-control nodes we need to limit the list of resources
1080          * by IDs in the group list for this node
1081          */
1082         list_for_each(lh, &file_priv->fbs)
1083                 fb_count++;
1084
1085         mode_group = &file_priv->master->minor->mode_group;
1086         if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1087
1088                 list_for_each(lh, &dev->mode_config.crtc_list)
1089                         crtc_count++;
1090
1091                 list_for_each(lh, &dev->mode_config.connector_list)
1092                         connector_count++;
1093
1094                 list_for_each(lh, &dev->mode_config.encoder_list)
1095                         encoder_count++;
1096         } else {
1097
1098                 crtc_count = mode_group->num_crtcs;
1099                 connector_count = mode_group->num_connectors;
1100                 encoder_count = mode_group->num_encoders;
1101         }
1102
1103         card_res->max_height = dev->mode_config.max_height;
1104         card_res->min_height = dev->mode_config.min_height;
1105         card_res->max_width = dev->mode_config.max_width;
1106         card_res->min_width = dev->mode_config.min_width;
1107
1108         /* handle this in 4 parts */
1109         /* FBs */
1110         if (card_res->count_fbs >= fb_count) {
1111                 copied = 0;
1112                 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1113                 list_for_each_entry(fb, &file_priv->fbs, head) {
1114                         if (put_user(fb->base.id, fb_id + copied)) {
1115                                 ret = -EFAULT;
1116                                 goto out;
1117                         }
1118                         copied++;
1119                 }
1120         }
1121         card_res->count_fbs = fb_count;
1122
1123         /* CRTCs */
1124         if (card_res->count_crtcs >= crtc_count) {
1125                 copied = 0;
1126                 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1127                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1128                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1129                                             head) {
1130                                 DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1131                                 if (put_user(crtc->base.id, crtc_id + copied)) {
1132                                         ret = -EFAULT;
1133                                         goto out;
1134                                 }
1135                                 copied++;
1136                         }
1137                 } else {
1138                         for (i = 0; i < mode_group->num_crtcs; i++) {
1139                                 if (put_user(mode_group->id_list[i],
1140                                              crtc_id + copied)) {
1141                                         ret = -EFAULT;
1142                                         goto out;
1143                                 }
1144                                 copied++;
1145                         }
1146                 }
1147         }
1148         card_res->count_crtcs = crtc_count;
1149
1150         /* Encoders */
1151         if (card_res->count_encoders >= encoder_count) {
1152                 copied = 0;
1153                 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1154                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1155                         list_for_each_entry(encoder,
1156                                             &dev->mode_config.encoder_list,
1157                                             head) {
1158                                 DRM_DEBUG_KMS("ENCODER ID is %d\n",
1159                                           encoder->base.id);
1160                                 if (put_user(encoder->base.id, encoder_id +
1161                                              copied)) {
1162                                         ret = -EFAULT;
1163                                         goto out;
1164                                 }
1165                                 copied++;
1166                         }
1167                 } else {
1168                         for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1169                                 if (put_user(mode_group->id_list[i],
1170                                              encoder_id + copied)) {
1171                                         ret = -EFAULT;
1172                                         goto out;
1173                                 }
1174                                 copied++;
1175                         }
1176
1177                 }
1178         }
1179         card_res->count_encoders = encoder_count;
1180
1181         /* Connectors */
1182         if (card_res->count_connectors >= connector_count) {
1183                 copied = 0;
1184                 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1185                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1186                         list_for_each_entry(connector,
1187                                             &dev->mode_config.connector_list,
1188                                             head) {
1189                                 DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1190                                           connector->base.id);
1191                                 if (put_user(connector->base.id,
1192                                              connector_id + copied)) {
1193                                         ret = -EFAULT;
1194                                         goto out;
1195                                 }
1196                                 copied++;
1197                         }
1198                 } else {
1199                         int start = mode_group->num_crtcs +
1200                                 mode_group->num_encoders;
1201                         for (i = start; i < start + mode_group->num_connectors; i++) {
1202                                 if (put_user(mode_group->id_list[i],
1203                                              connector_id + copied)) {
1204                                         ret = -EFAULT;
1205                                         goto out;
1206                                 }
1207                                 copied++;
1208                         }
1209                 }
1210         }
1211         card_res->count_connectors = connector_count;
1212
1213         DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1214                   card_res->count_connectors, card_res->count_encoders);
1215
1216 out:
1217         mutex_unlock(&dev->mode_config.mutex);
1218         return ret;
1219 }
1220
1221 /**
1222  * drm_mode_getcrtc - get CRTC configuration
1223  * @inode: inode from the ioctl
1224  * @filp: file * from the ioctl
1225  * @cmd: cmd from ioctl
1226  * @arg: arg from ioctl
1227  *
1228  * LOCKING:
1229  * Caller? (FIXME)
1230  *
1231  * Construct a CRTC configuration structure to return to the user.
1232  *
1233  * Called by the user via ioctl.
1234  *
1235  * RETURNS:
1236  * Zero on success, errno on failure.
1237  */
1238 int drm_mode_getcrtc(struct drm_device *dev,
1239                      void *data, struct drm_file *file_priv)
1240 {
1241         struct drm_mode_crtc *crtc_resp = data;
1242         struct drm_crtc *crtc;
1243         struct drm_mode_object *obj;
1244         int ret = 0;
1245
1246         mutex_lock(&dev->mode_config.mutex);
1247
1248         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1249                                    DRM_MODE_OBJECT_CRTC);
1250         if (!obj) {
1251                 ret = -EINVAL;
1252                 goto out;
1253         }
1254         crtc = obj_to_crtc(obj);
1255
1256         crtc_resp->x = crtc->x;
1257         crtc_resp->y = crtc->y;
1258         crtc_resp->gamma_size = crtc->gamma_size;
1259         if (crtc->fb)
1260                 crtc_resp->fb_id = crtc->fb->base.id;
1261         else
1262                 crtc_resp->fb_id = 0;
1263
1264         if (crtc->enabled) {
1265
1266                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1267                 crtc_resp->mode_valid = 1;
1268
1269         } else {
1270                 crtc_resp->mode_valid = 0;
1271         }
1272
1273 out:
1274         mutex_unlock(&dev->mode_config.mutex);
1275         return ret;
1276 }
1277
1278 /**
1279  * drm_mode_getconnector - get connector configuration
1280  * @inode: inode from the ioctl
1281  * @filp: file * from the ioctl
1282  * @cmd: cmd from ioctl
1283  * @arg: arg from ioctl
1284  *
1285  * LOCKING:
1286  * Caller? (FIXME)
1287  *
1288  * Construct a connector configuration structure to return to the user.
1289  *
1290  * Called by the user via ioctl.
1291  *
1292  * RETURNS:
1293  * Zero on success, errno on failure.
1294  */
1295 int drm_mode_getconnector(struct drm_device *dev, void *data,
1296                           struct drm_file *file_priv)
1297 {
1298         struct drm_mode_get_connector *out_resp = data;
1299         struct drm_mode_object *obj;
1300         struct drm_connector *connector;
1301         struct drm_display_mode *mode;
1302         int mode_count = 0;
1303         int props_count = 0;
1304         int encoders_count = 0;
1305         int ret = 0;
1306         int copied = 0;
1307         int i;
1308         struct drm_mode_modeinfo u_mode;
1309         struct drm_mode_modeinfo __user *mode_ptr;
1310         uint32_t __user *prop_ptr;
1311         uint64_t __user *prop_values;
1312         uint32_t __user *encoder_ptr;
1313
1314         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1315
1316         DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1317
1318         mutex_lock(&dev->mode_config.mutex);
1319
1320         obj = drm_mode_object_find(dev, out_resp->connector_id,
1321                                    DRM_MODE_OBJECT_CONNECTOR);
1322         if (!obj) {
1323                 ret = -EINVAL;
1324                 goto out;
1325         }
1326         connector = obj_to_connector(obj);
1327
1328         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1329                 if (connector->property_ids[i] != 0) {
1330                         props_count++;
1331                 }
1332         }
1333
1334         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1335                 if (connector->encoder_ids[i] != 0) {
1336                         encoders_count++;
1337                 }
1338         }
1339
1340         if (out_resp->count_modes == 0) {
1341                 connector->funcs->fill_modes(connector,
1342                                              dev->mode_config.max_width,
1343                                              dev->mode_config.max_height);
1344         }
1345
1346         /* delayed so we get modes regardless of pre-fill_modes state */
1347         list_for_each_entry(mode, &connector->modes, head)
1348                 mode_count++;
1349
1350         out_resp->connector_id = connector->base.id;
1351         out_resp->connector_type = connector->connector_type;
1352         out_resp->connector_type_id = connector->connector_type_id;
1353         out_resp->mm_width = connector->display_info.width_mm;
1354         out_resp->mm_height = connector->display_info.height_mm;
1355         out_resp->subpixel = connector->display_info.subpixel_order;
1356         out_resp->connection = connector->status;
1357         if (connector->encoder)
1358                 out_resp->encoder_id = connector->encoder->base.id;
1359         else
1360                 out_resp->encoder_id = 0;
1361
1362         /*
1363          * This ioctl is called twice, once to determine how much space is
1364          * needed, and the 2nd time to fill it.
1365          */
1366         if ((out_resp->count_modes >= mode_count) && mode_count) {
1367                 copied = 0;
1368                 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1369                 list_for_each_entry(mode, &connector->modes, head) {
1370                         drm_crtc_convert_to_umode(&u_mode, mode);
1371                         if (copy_to_user(mode_ptr + copied,
1372                                          &u_mode, sizeof(u_mode))) {
1373                                 ret = -EFAULT;
1374                                 goto out;
1375                         }
1376                         copied++;
1377                 }
1378         }
1379         out_resp->count_modes = mode_count;
1380
1381         if ((out_resp->count_props >= props_count) && props_count) {
1382                 copied = 0;
1383                 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1384                 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1385                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1386                         if (connector->property_ids[i] != 0) {
1387                                 if (put_user(connector->property_ids[i],
1388                                              prop_ptr + copied)) {
1389                                         ret = -EFAULT;
1390                                         goto out;
1391                                 }
1392
1393                                 if (put_user(connector->property_values[i],
1394                                              prop_values + copied)) {
1395                                         ret = -EFAULT;
1396                                         goto out;
1397                                 }
1398                                 copied++;
1399                         }
1400                 }
1401         }
1402         out_resp->count_props = props_count;
1403
1404         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1405                 copied = 0;
1406                 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1407                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1408                         if (connector->encoder_ids[i] != 0) {
1409                                 if (put_user(connector->encoder_ids[i],
1410                                              encoder_ptr + copied)) {
1411                                         ret = -EFAULT;
1412                                         goto out;
1413                                 }
1414                                 copied++;
1415                         }
1416                 }
1417         }
1418         out_resp->count_encoders = encoders_count;
1419
1420 out:
1421         mutex_unlock(&dev->mode_config.mutex);
1422         return ret;
1423 }
1424
1425 int drm_mode_getencoder(struct drm_device *dev, void *data,
1426                         struct drm_file *file_priv)
1427 {
1428         struct drm_mode_get_encoder *enc_resp = data;
1429         struct drm_mode_object *obj;
1430         struct drm_encoder *encoder;
1431         int ret = 0;
1432
1433         mutex_lock(&dev->mode_config.mutex);
1434         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1435                                    DRM_MODE_OBJECT_ENCODER);
1436         if (!obj) {
1437                 ret = -EINVAL;
1438                 goto out;
1439         }
1440         encoder = obj_to_encoder(obj);
1441
1442         if (encoder->crtc)
1443                 enc_resp->crtc_id = encoder->crtc->base.id;
1444         else
1445                 enc_resp->crtc_id = 0;
1446         enc_resp->encoder_type = encoder->encoder_type;
1447         enc_resp->encoder_id = encoder->base.id;
1448         enc_resp->possible_crtcs = encoder->possible_crtcs;
1449         enc_resp->possible_clones = encoder->possible_clones;
1450
1451 out:
1452         mutex_unlock(&dev->mode_config.mutex);
1453         return ret;
1454 }
1455
1456 /**
1457  * drm_mode_setcrtc - set CRTC configuration
1458  * @inode: inode from the ioctl
1459  * @filp: file * from the ioctl
1460  * @cmd: cmd from ioctl
1461  * @arg: arg from ioctl
1462  *
1463  * LOCKING:
1464  * Caller? (FIXME)
1465  *
1466  * Build a new CRTC configuration based on user request.
1467  *
1468  * Called by the user via ioctl.
1469  *
1470  * RETURNS:
1471  * Zero on success, errno on failure.
1472  */
1473 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1474                      struct drm_file *file_priv)
1475 {
1476         struct drm_mode_config *config = &dev->mode_config;
1477         struct drm_mode_crtc *crtc_req = data;
1478         struct drm_mode_object *obj;
1479         struct drm_crtc *crtc, *crtcfb;
1480         struct drm_connector **connector_set = NULL, *connector;
1481         struct drm_framebuffer *fb = NULL;
1482         struct drm_display_mode *mode = NULL;
1483         struct drm_mode_set set;
1484         uint32_t __user *set_connectors_ptr;
1485         int ret = 0;
1486         int i;
1487
1488         mutex_lock(&dev->mode_config.mutex);
1489         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1490                                    DRM_MODE_OBJECT_CRTC);
1491         if (!obj) {
1492                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1493                 ret = -EINVAL;
1494                 goto out;
1495         }
1496         crtc = obj_to_crtc(obj);
1497
1498         if (crtc_req->mode_valid) {
1499                 /* If we have a mode we need a framebuffer. */
1500                 /* If we pass -1, set the mode with the currently bound fb */
1501                 if (crtc_req->fb_id == -1) {
1502                         list_for_each_entry(crtcfb,
1503                                             &dev->mode_config.crtc_list, head) {
1504                                 if (crtcfb == crtc) {
1505                                         DRM_DEBUG_KMS("Using current fb for "
1506                                                         "setmode\n");
1507                                         fb = crtc->fb;
1508                                 }
1509                         }
1510                 } else {
1511                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1512                                                    DRM_MODE_OBJECT_FB);
1513                         if (!obj) {
1514                                 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1515                                                 crtc_req->fb_id);
1516                                 ret = -EINVAL;
1517                                 goto out;
1518                         }
1519                         fb = obj_to_fb(obj);
1520                 }
1521
1522                 mode = drm_mode_create(dev);
1523                 drm_crtc_convert_umode(mode, &crtc_req->mode);
1524                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1525         }
1526
1527         if (crtc_req->count_connectors == 0 && mode) {
1528                 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1529                 ret = -EINVAL;
1530                 goto out;
1531         }
1532
1533         if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1534                 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1535                           crtc_req->count_connectors);
1536                 ret = -EINVAL;
1537                 goto out;
1538         }
1539
1540         if (crtc_req->count_connectors > 0) {
1541                 u32 out_id;
1542
1543                 /* Avoid unbounded kernel memory allocation */
1544                 if (crtc_req->count_connectors > config->num_connector) {
1545                         ret = -EINVAL;
1546                         goto out;
1547                 }
1548
1549                 connector_set = kmalloc(crtc_req->count_connectors *
1550                                         sizeof(struct drm_connector *),
1551                                         GFP_KERNEL);
1552                 if (!connector_set) {
1553                         ret = -ENOMEM;
1554                         goto out;
1555                 }
1556
1557                 for (i = 0; i < crtc_req->count_connectors; i++) {
1558                         set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1559                         if (get_user(out_id, &set_connectors_ptr[i])) {
1560                                 ret = -EFAULT;
1561                                 goto out;
1562                         }
1563
1564                         obj = drm_mode_object_find(dev, out_id,
1565                                                    DRM_MODE_OBJECT_CONNECTOR);
1566                         if (!obj) {
1567                                 DRM_DEBUG_KMS("Connector id %d unknown\n",
1568                                                 out_id);
1569                                 ret = -EINVAL;
1570                                 goto out;
1571                         }
1572                         connector = obj_to_connector(obj);
1573
1574                         connector_set[i] = connector;
1575                 }
1576         }
1577
1578         set.crtc = crtc;
1579         set.x = crtc_req->x;
1580         set.y = crtc_req->y;
1581         set.mode = mode;
1582         set.connectors = connector_set;
1583         set.num_connectors = crtc_req->count_connectors;
1584         set.fb = fb;
1585         ret = crtc->funcs->set_config(&set);
1586
1587 out:
1588         kfree(connector_set);
1589         mutex_unlock(&dev->mode_config.mutex);
1590         return ret;
1591 }
1592
1593 int drm_mode_cursor_ioctl(struct drm_device *dev,
1594                         void *data, struct drm_file *file_priv)
1595 {
1596         struct drm_mode_cursor *req = data;
1597         struct drm_mode_object *obj;
1598         struct drm_crtc *crtc;
1599         int ret = 0;
1600
1601         if (!req->flags) {
1602                 DRM_ERROR("no operation set\n");
1603                 return -EINVAL;
1604         }
1605
1606         mutex_lock(&dev->mode_config.mutex);
1607         obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1608         if (!obj) {
1609                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1610                 ret = -EINVAL;
1611                 goto out;
1612         }
1613         crtc = obj_to_crtc(obj);
1614
1615         if (req->flags & DRM_MODE_CURSOR_BO) {
1616                 if (!crtc->funcs->cursor_set) {
1617                         DRM_ERROR("crtc does not support cursor\n");
1618                         ret = -ENXIO;
1619                         goto out;
1620                 }
1621                 /* Turns off the cursor if handle is 0 */
1622                 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1623                                               req->width, req->height);
1624         }
1625
1626         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1627                 if (crtc->funcs->cursor_move) {
1628                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1629                 } else {
1630                         DRM_ERROR("crtc does not support cursor\n");
1631                         ret = -EFAULT;
1632                         goto out;
1633                 }
1634         }
1635 out:
1636         mutex_unlock(&dev->mode_config.mutex);
1637         return ret;
1638 }
1639
1640 /**
1641  * drm_mode_addfb - add an FB to the graphics configuration
1642  * @inode: inode from the ioctl
1643  * @filp: file * from the ioctl
1644  * @cmd: cmd from ioctl
1645  * @arg: arg from ioctl
1646  *
1647  * LOCKING:
1648  * Takes mode config lock.
1649  *
1650  * Add a new FB to the specified CRTC, given a user request.
1651  *
1652  * Called by the user via ioctl.
1653  *
1654  * RETURNS:
1655  * Zero on success, errno on failure.
1656  */
1657 int drm_mode_addfb(struct drm_device *dev,
1658                    void *data, struct drm_file *file_priv)
1659 {
1660         struct drm_mode_fb_cmd *r = data;
1661         struct drm_mode_config *config = &dev->mode_config;
1662         struct drm_framebuffer *fb;
1663         int ret = 0;
1664
1665         if ((config->min_width > r->width) || (r->width > config->max_width)) {
1666                 DRM_ERROR("mode new framebuffer width not within limits\n");
1667                 return -EINVAL;
1668         }
1669         if ((config->min_height > r->height) || (r->height > config->max_height)) {
1670                 DRM_ERROR("mode new framebuffer height not within limits\n");
1671                 return -EINVAL;
1672         }
1673
1674         mutex_lock(&dev->mode_config.mutex);
1675
1676         /* TODO check buffer is sufficently large */
1677         /* TODO setup destructor callback */
1678
1679         fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1680         if (!fb) {
1681                 DRM_ERROR("could not create framebuffer\n");
1682                 ret = -EINVAL;
1683                 goto out;
1684         }
1685
1686         r->fb_id = fb->base.id;
1687         list_add(&fb->filp_head, &file_priv->fbs);
1688
1689 out:
1690         mutex_unlock(&dev->mode_config.mutex);
1691         return ret;
1692 }
1693
1694 /**
1695  * drm_mode_rmfb - remove an FB from the configuration
1696  * @inode: inode from the ioctl
1697  * @filp: file * from the ioctl
1698  * @cmd: cmd from ioctl
1699  * @arg: arg from ioctl
1700  *
1701  * LOCKING:
1702  * Takes mode config lock.
1703  *
1704  * Remove the FB specified by the user.
1705  *
1706  * Called by the user via ioctl.
1707  *
1708  * RETURNS:
1709  * Zero on success, errno on failure.
1710  */
1711 int drm_mode_rmfb(struct drm_device *dev,
1712                    void *data, struct drm_file *file_priv)
1713 {
1714         struct drm_mode_object *obj;
1715         struct drm_framebuffer *fb = NULL;
1716         struct drm_framebuffer *fbl = NULL;
1717         uint32_t *id = data;
1718         int ret = 0;
1719         int found = 0;
1720
1721         mutex_lock(&dev->mode_config.mutex);
1722         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1723         /* TODO check that we realy get a framebuffer back. */
1724         if (!obj) {
1725                 DRM_ERROR("mode invalid framebuffer id\n");
1726                 ret = -EINVAL;
1727                 goto out;
1728         }
1729         fb = obj_to_fb(obj);
1730
1731         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1732                 if (fb == fbl)
1733                         found = 1;
1734
1735         if (!found) {
1736                 DRM_ERROR("tried to remove a fb that we didn't own\n");
1737                 ret = -EINVAL;
1738                 goto out;
1739         }
1740
1741         /* TODO release all crtc connected to the framebuffer */
1742         /* TODO unhock the destructor from the buffer object */
1743
1744         list_del(&fb->filp_head);
1745         fb->funcs->destroy(fb);
1746
1747 out:
1748         mutex_unlock(&dev->mode_config.mutex);
1749         return ret;
1750 }
1751
1752 /**
1753  * drm_mode_getfb - get FB info
1754  * @inode: inode from the ioctl
1755  * @filp: file * from the ioctl
1756  * @cmd: cmd from ioctl
1757  * @arg: arg from ioctl
1758  *
1759  * LOCKING:
1760  * Caller? (FIXME)
1761  *
1762  * Lookup the FB given its ID and return info about it.
1763  *
1764  * Called by the user via ioctl.
1765  *
1766  * RETURNS:
1767  * Zero on success, errno on failure.
1768  */
1769 int drm_mode_getfb(struct drm_device *dev,
1770                    void *data, struct drm_file *file_priv)
1771 {
1772         struct drm_mode_fb_cmd *r = data;
1773         struct drm_mode_object *obj;
1774         struct drm_framebuffer *fb;
1775         int ret = 0;
1776
1777         mutex_lock(&dev->mode_config.mutex);
1778         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1779         if (!obj) {
1780                 DRM_ERROR("invalid framebuffer id\n");
1781                 ret = -EINVAL;
1782                 goto out;
1783         }
1784         fb = obj_to_fb(obj);
1785
1786         r->height = fb->height;
1787         r->width = fb->width;
1788         r->depth = fb->depth;
1789         r->bpp = fb->bits_per_pixel;
1790         r->pitch = fb->pitch;
1791         fb->funcs->create_handle(fb, file_priv, &r->handle);
1792
1793 out:
1794         mutex_unlock(&dev->mode_config.mutex);
1795         return ret;
1796 }
1797
1798 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1799                            void *data, struct drm_file *file_priv)
1800 {
1801         struct drm_clip_rect __user *clips_ptr;
1802         struct drm_clip_rect *clips = NULL;
1803         struct drm_mode_fb_dirty_cmd *r = data;
1804         struct drm_mode_object *obj;
1805         struct drm_framebuffer *fb;
1806         unsigned flags;
1807         int num_clips;
1808         int ret = 0;
1809
1810         mutex_lock(&dev->mode_config.mutex);
1811         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1812         if (!obj) {
1813                 DRM_ERROR("invalid framebuffer id\n");
1814                 ret = -EINVAL;
1815                 goto out_err1;
1816         }
1817         fb = obj_to_fb(obj);
1818
1819         num_clips = r->num_clips;
1820         clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
1821
1822         if (!num_clips != !clips_ptr) {
1823                 ret = -EINVAL;
1824                 goto out_err1;
1825         }
1826
1827         flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
1828
1829         /* If userspace annotates copy, clips must come in pairs */
1830         if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
1831                 ret = -EINVAL;
1832                 goto out_err1;
1833         }
1834
1835         if (num_clips && clips_ptr) {
1836                 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
1837                 if (!clips) {
1838                         ret = -ENOMEM;
1839                         goto out_err1;
1840                 }
1841
1842                 ret = copy_from_user(clips, clips_ptr,
1843                                      num_clips * sizeof(*clips));
1844                 if (ret)
1845                         goto out_err2;
1846         }
1847
1848         if (fb->funcs->dirty) {
1849                 ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
1850         } else {
1851                 ret = -ENOSYS;
1852                 goto out_err2;
1853         }
1854
1855 out_err2:
1856         kfree(clips);
1857 out_err1:
1858         mutex_unlock(&dev->mode_config.mutex);
1859         return ret;
1860 }
1861
1862
1863 /**
1864  * drm_fb_release - remove and free the FBs on this file
1865  * @filp: file * from the ioctl
1866  *
1867  * LOCKING:
1868  * Takes mode config lock.
1869  *
1870  * Destroy all the FBs associated with @filp.
1871  *
1872  * Called by the user via ioctl.
1873  *
1874  * RETURNS:
1875  * Zero on success, errno on failure.
1876  */
1877 void drm_fb_release(struct drm_file *priv)
1878 {
1879         struct drm_device *dev = priv->minor->dev;
1880         struct drm_framebuffer *fb, *tfb;
1881
1882         mutex_lock(&dev->mode_config.mutex);
1883         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1884                 list_del(&fb->filp_head);
1885                 fb->funcs->destroy(fb);
1886         }
1887         mutex_unlock(&dev->mode_config.mutex);
1888 }
1889
1890 /**
1891  * drm_mode_attachmode - add a mode to the user mode list
1892  * @dev: DRM device
1893  * @connector: connector to add the mode to
1894  * @mode: mode to add
1895  *
1896  * Add @mode to @connector's user mode list.
1897  */
1898 static int drm_mode_attachmode(struct drm_device *dev,
1899                                struct drm_connector *connector,
1900                                struct drm_display_mode *mode)
1901 {
1902         int ret = 0;
1903
1904         list_add_tail(&mode->head, &connector->user_modes);
1905         return ret;
1906 }
1907
1908 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1909                              struct drm_display_mode *mode)
1910 {
1911         struct drm_connector *connector;
1912         int ret = 0;
1913         struct drm_display_mode *dup_mode;
1914         int need_dup = 0;
1915         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1916                 if (!connector->encoder)
1917                         break;
1918                 if (connector->encoder->crtc == crtc) {
1919                         if (need_dup)
1920                                 dup_mode = drm_mode_duplicate(dev, mode);
1921                         else
1922                                 dup_mode = mode;
1923                         ret = drm_mode_attachmode(dev, connector, dup_mode);
1924                         if (ret)
1925                                 return ret;
1926                         need_dup = 1;
1927                 }
1928         }
1929         return 0;
1930 }
1931 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1932
1933 static int drm_mode_detachmode(struct drm_device *dev,
1934                                struct drm_connector *connector,
1935                                struct drm_display_mode *mode)
1936 {
1937         int found = 0;
1938         int ret = 0;
1939         struct drm_display_mode *match_mode, *t;
1940
1941         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1942                 if (drm_mode_equal(match_mode, mode)) {
1943                         list_del(&match_mode->head);
1944                         drm_mode_destroy(dev, match_mode);
1945                         found = 1;
1946                         break;
1947                 }
1948         }
1949
1950         if (!found)
1951                 ret = -EINVAL;
1952
1953         return ret;
1954 }
1955
1956 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1957 {
1958         struct drm_connector *connector;
1959
1960         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1961                 drm_mode_detachmode(dev, connector, mode);
1962         }
1963         return 0;
1964 }
1965 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1966
1967 /**
1968  * drm_fb_attachmode - Attach a user mode to an connector
1969  * @inode: inode from the ioctl
1970  * @filp: file * from the ioctl
1971  * @cmd: cmd from ioctl
1972  * @arg: arg from ioctl
1973  *
1974  * This attaches a user specified mode to an connector.
1975  * Called by the user via ioctl.
1976  *
1977  * RETURNS:
1978  * Zero on success, errno on failure.
1979  */
1980 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1981                               void *data, struct drm_file *file_priv)
1982 {
1983         struct drm_mode_mode_cmd *mode_cmd = data;
1984         struct drm_connector *connector;
1985         struct drm_display_mode *mode;
1986         struct drm_mode_object *obj;
1987         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1988         int ret = 0;
1989
1990         mutex_lock(&dev->mode_config.mutex);
1991
1992         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1993         if (!obj) {
1994                 ret = -EINVAL;
1995                 goto out;
1996         }
1997         connector = obj_to_connector(obj);
1998
1999         mode = drm_mode_create(dev);
2000         if (!mode) {
2001                 ret = -ENOMEM;
2002                 goto out;
2003         }
2004
2005         drm_crtc_convert_umode(mode, umode);
2006
2007         ret = drm_mode_attachmode(dev, connector, mode);
2008 out:
2009         mutex_unlock(&dev->mode_config.mutex);
2010         return ret;
2011 }
2012
2013
2014 /**
2015  * drm_fb_detachmode - Detach a user specified mode from an connector
2016  * @inode: inode from the ioctl
2017  * @filp: file * from the ioctl
2018  * @cmd: cmd from ioctl
2019  * @arg: arg from ioctl
2020  *
2021  * Called by the user via ioctl.
2022  *
2023  * RETURNS:
2024  * Zero on success, errno on failure.
2025  */
2026 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2027                               void *data, struct drm_file *file_priv)
2028 {
2029         struct drm_mode_object *obj;
2030         struct drm_mode_mode_cmd *mode_cmd = data;
2031         struct drm_connector *connector;
2032         struct drm_display_mode mode;
2033         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2034         int ret = 0;
2035
2036         mutex_lock(&dev->mode_config.mutex);
2037
2038         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2039         if (!obj) {
2040                 ret = -EINVAL;
2041                 goto out;
2042         }
2043         connector = obj_to_connector(obj);
2044
2045         drm_crtc_convert_umode(&mode, umode);
2046         ret = drm_mode_detachmode(dev, connector, &mode);
2047 out:
2048         mutex_unlock(&dev->mode_config.mutex);
2049         return ret;
2050 }
2051
2052 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2053                                          const char *name, int num_values)
2054 {
2055         struct drm_property *property = NULL;
2056
2057         property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2058         if (!property)
2059                 return NULL;
2060
2061         if (num_values) {
2062                 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2063                 if (!property->values)
2064                         goto fail;
2065         }
2066
2067         drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2068         property->flags = flags;
2069         property->num_values = num_values;
2070         INIT_LIST_HEAD(&property->enum_blob_list);
2071
2072         if (name)
2073                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2074
2075         list_add_tail(&property->head, &dev->mode_config.property_list);
2076         return property;
2077 fail:
2078         kfree(property);
2079         return NULL;
2080 }
2081 EXPORT_SYMBOL(drm_property_create);
2082
2083 int drm_property_add_enum(struct drm_property *property, int index,
2084                           uint64_t value, const char *name)
2085 {
2086         struct drm_property_enum *prop_enum;
2087
2088         if (!(property->flags & DRM_MODE_PROP_ENUM))
2089                 return -EINVAL;
2090
2091         if (!list_empty(&property->enum_blob_list)) {
2092                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2093                         if (prop_enum->value == value) {
2094                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2095                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2096                                 return 0;
2097                         }
2098                 }
2099         }
2100
2101         prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2102         if (!prop_enum)
2103                 return -ENOMEM;
2104
2105         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2106         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2107         prop_enum->value = value;
2108
2109         property->values[index] = value;
2110         list_add_tail(&prop_enum->head, &property->enum_blob_list);
2111         return 0;
2112 }
2113 EXPORT_SYMBOL(drm_property_add_enum);
2114
2115 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2116 {
2117         struct drm_property_enum *prop_enum, *pt;
2118
2119         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2120                 list_del(&prop_enum->head);
2121                 kfree(prop_enum);
2122         }
2123
2124         if (property->num_values)
2125                 kfree(property->values);
2126         drm_mode_object_put(dev, &property->base);
2127         list_del(&property->head);
2128         kfree(property);
2129 }
2130 EXPORT_SYMBOL(drm_property_destroy);
2131
2132 int drm_connector_attach_property(struct drm_connector *connector,
2133                                struct drm_property *property, uint64_t init_val)
2134 {
2135         int i;
2136
2137         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2138                 if (connector->property_ids[i] == 0) {
2139                         connector->property_ids[i] = property->base.id;
2140                         connector->property_values[i] = init_val;
2141                         break;
2142                 }
2143         }
2144
2145         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2146                 return -EINVAL;
2147         return 0;
2148 }
2149 EXPORT_SYMBOL(drm_connector_attach_property);
2150
2151 int drm_connector_property_set_value(struct drm_connector *connector,
2152                                   struct drm_property *property, uint64_t value)
2153 {
2154         int i;
2155
2156         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2157                 if (connector->property_ids[i] == property->base.id) {
2158                         connector->property_values[i] = value;
2159                         break;
2160                 }
2161         }
2162
2163         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2164                 return -EINVAL;
2165         return 0;
2166 }
2167 EXPORT_SYMBOL(drm_connector_property_set_value);
2168
2169 int drm_connector_property_get_value(struct drm_connector *connector,
2170                                   struct drm_property *property, uint64_t *val)
2171 {
2172         int i;
2173
2174         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2175                 if (connector->property_ids[i] == property->base.id) {
2176                         *val = connector->property_values[i];
2177                         break;
2178                 }
2179         }
2180
2181         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2182                 return -EINVAL;
2183         return 0;
2184 }
2185 EXPORT_SYMBOL(drm_connector_property_get_value);
2186
2187 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2188                                void *data, struct drm_file *file_priv)
2189 {
2190         struct drm_mode_object *obj;
2191         struct drm_mode_get_property *out_resp = data;
2192         struct drm_property *property;
2193         int enum_count = 0;
2194         int blob_count = 0;
2195         int value_count = 0;
2196         int ret = 0, i;
2197         int copied;
2198         struct drm_property_enum *prop_enum;
2199         struct drm_mode_property_enum __user *enum_ptr;
2200         struct drm_property_blob *prop_blob;
2201         uint32_t *blob_id_ptr;
2202         uint64_t __user *values_ptr;
2203         uint32_t __user *blob_length_ptr;
2204
2205         mutex_lock(&dev->mode_config.mutex);
2206         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2207         if (!obj) {
2208                 ret = -EINVAL;
2209                 goto done;
2210         }
2211         property = obj_to_property(obj);
2212
2213         if (property->flags & DRM_MODE_PROP_ENUM) {
2214                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2215                         enum_count++;
2216         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2217                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2218                         blob_count++;
2219         }
2220
2221         value_count = property->num_values;
2222
2223         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2224         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2225         out_resp->flags = property->flags;
2226
2227         if ((out_resp->count_values >= value_count) && value_count) {
2228                 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2229                 for (i = 0; i < value_count; i++) {
2230                         if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2231                                 ret = -EFAULT;
2232                                 goto done;
2233                         }
2234                 }
2235         }
2236         out_resp->count_values = value_count;
2237
2238         if (property->flags & DRM_MODE_PROP_ENUM) {
2239                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2240                         copied = 0;
2241                         enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2242                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2243
2244                                 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2245                                         ret = -EFAULT;
2246                                         goto done;
2247                                 }
2248
2249                                 if (copy_to_user(&enum_ptr[copied].name,
2250                                                  &prop_enum->name, DRM_PROP_NAME_LEN)) {
2251                                         ret = -EFAULT;
2252                                         goto done;
2253                                 }
2254                                 copied++;
2255                         }
2256                 }
2257                 out_resp->count_enum_blobs = enum_count;
2258         }
2259
2260         if (property->flags & DRM_MODE_PROP_BLOB) {
2261                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2262                         copied = 0;
2263                         blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2264                         blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2265
2266                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2267                                 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2268                                         ret = -EFAULT;
2269                                         goto done;
2270                                 }
2271
2272                                 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2273                                         ret = -EFAULT;
2274                                         goto done;
2275                                 }
2276
2277                                 copied++;
2278                         }
2279                 }
2280                 out_resp->count_enum_blobs = blob_count;
2281         }
2282 done:
2283         mutex_unlock(&dev->mode_config.mutex);
2284         return ret;
2285 }
2286
2287 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2288                                                           void *data)
2289 {
2290         struct drm_property_blob *blob;
2291
2292         if (!length || !data)
2293                 return NULL;
2294
2295         blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2296         if (!blob)
2297                 return NULL;
2298
2299         blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2300         blob->length = length;
2301
2302         memcpy(blob->data, data, length);
2303
2304         drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2305
2306         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2307         return blob;
2308 }
2309
2310 static void drm_property_destroy_blob(struct drm_device *dev,
2311                                struct drm_property_blob *blob)
2312 {
2313         drm_mode_object_put(dev, &blob->base);
2314         list_del(&blob->head);
2315         kfree(blob);
2316 }
2317
2318 int drm_mode_getblob_ioctl(struct drm_device *dev,
2319                            void *data, struct drm_file *file_priv)
2320 {
2321         struct drm_mode_object *obj;
2322         struct drm_mode_get_blob *out_resp = data;
2323         struct drm_property_blob *blob;
2324         int ret = 0;
2325         void *blob_ptr;
2326
2327         mutex_lock(&dev->mode_config.mutex);
2328         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2329         if (!obj) {
2330                 ret = -EINVAL;
2331                 goto done;
2332         }
2333         blob = obj_to_blob(obj);
2334
2335         if (out_resp->length == blob->length) {
2336                 blob_ptr = (void *)(unsigned long)out_resp->data;
2337                 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2338                         ret = -EFAULT;
2339                         goto done;
2340                 }
2341         }
2342         out_resp->length = blob->length;
2343
2344 done:
2345         mutex_unlock(&dev->mode_config.mutex);
2346         return ret;
2347 }
2348
2349 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2350                                             struct edid *edid)
2351 {
2352         struct drm_device *dev = connector->dev;
2353         int ret = 0;
2354
2355         if (connector->edid_blob_ptr)
2356                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2357
2358         /* Delete edid, when there is none. */
2359         if (!edid) {
2360                 connector->edid_blob_ptr = NULL;
2361                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2362                 return ret;
2363         }
2364
2365         connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2366
2367         ret = drm_connector_property_set_value(connector,
2368                                                dev->mode_config.edid_property,
2369                                                connector->edid_blob_ptr->base.id);
2370
2371         return ret;
2372 }
2373 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2374
2375 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2376                                        void *data, struct drm_file *file_priv)
2377 {
2378         struct drm_mode_connector_set_property *out_resp = data;
2379         struct drm_mode_object *obj;
2380         struct drm_property *property;
2381         struct drm_connector *connector;
2382         int ret = -EINVAL;
2383         int i;
2384
2385         mutex_lock(&dev->mode_config.mutex);
2386
2387         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2388         if (!obj) {
2389                 goto out;
2390         }
2391         connector = obj_to_connector(obj);
2392
2393         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2394                 if (connector->property_ids[i] == out_resp->prop_id)
2395                         break;
2396         }
2397
2398         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2399                 goto out;
2400         }
2401
2402         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2403         if (!obj) {
2404                 goto out;
2405         }
2406         property = obj_to_property(obj);
2407
2408         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2409                 goto out;
2410
2411         if (property->flags & DRM_MODE_PROP_RANGE) {
2412                 if (out_resp->value < property->values[0])
2413                         goto out;
2414
2415                 if (out_resp->value > property->values[1])
2416                         goto out;
2417         } else {
2418                 int found = 0;
2419                 for (i = 0; i < property->num_values; i++) {
2420                         if (property->values[i] == out_resp->value) {
2421                                 found = 1;
2422                                 break;
2423                         }
2424                 }
2425                 if (!found) {
2426                         goto out;
2427                 }
2428         }
2429
2430         /* Do DPMS ourselves */
2431         if (property == connector->dev->mode_config.dpms_property) {
2432                 if (connector->funcs->dpms)
2433                         (*connector->funcs->dpms)(connector, (int) out_resp->value);
2434                 ret = 0;
2435         } else if (connector->funcs->set_property)
2436                 ret = connector->funcs->set_property(connector, property, out_resp->value);
2437
2438         /* store the property value if successful */
2439         if (!ret)
2440                 drm_connector_property_set_value(connector, property, out_resp->value);
2441 out:
2442         mutex_unlock(&dev->mode_config.mutex);
2443         return ret;
2444 }
2445
2446 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2447                                       struct drm_encoder *encoder)
2448 {
2449         int i;
2450
2451         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2452                 if (connector->encoder_ids[i] == 0) {
2453                         connector->encoder_ids[i] = encoder->base.id;
2454                         return 0;
2455                 }
2456         }
2457         return -ENOMEM;
2458 }
2459 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2460
2461 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2462                                     struct drm_encoder *encoder)
2463 {
2464         int i;
2465         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2466                 if (connector->encoder_ids[i] == encoder->base.id) {
2467                         connector->encoder_ids[i] = 0;
2468                         if (connector->encoder == encoder)
2469                                 connector->encoder = NULL;
2470                         break;
2471                 }
2472         }
2473 }
2474 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2475
2476 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2477                                   int gamma_size)
2478 {
2479         crtc->gamma_size = gamma_size;
2480
2481         crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2482         if (!crtc->gamma_store) {
2483                 crtc->gamma_size = 0;
2484                 return false;
2485         }
2486
2487         return true;
2488 }
2489 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2490
2491 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2492                              void *data, struct drm_file *file_priv)
2493 {
2494         struct drm_mode_crtc_lut *crtc_lut = data;
2495         struct drm_mode_object *obj;
2496         struct drm_crtc *crtc;
2497         void *r_base, *g_base, *b_base;
2498         int size;
2499         int ret = 0;
2500
2501         mutex_lock(&dev->mode_config.mutex);
2502         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2503         if (!obj) {
2504                 ret = -EINVAL;
2505                 goto out;
2506         }
2507         crtc = obj_to_crtc(obj);
2508
2509         /* memcpy into gamma store */
2510         if (crtc_lut->gamma_size != crtc->gamma_size) {
2511                 ret = -EINVAL;
2512                 goto out;
2513         }
2514
2515         size = crtc_lut->gamma_size * (sizeof(uint16_t));
2516         r_base = crtc->gamma_store;
2517         if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2518                 ret = -EFAULT;
2519                 goto out;
2520         }
2521
2522         g_base = r_base + size;
2523         if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2524                 ret = -EFAULT;
2525                 goto out;
2526         }
2527
2528         b_base = g_base + size;
2529         if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2530                 ret = -EFAULT;
2531                 goto out;
2532         }
2533
2534         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2535
2536 out:
2537         mutex_unlock(&dev->mode_config.mutex);
2538         return ret;
2539
2540 }
2541
2542 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2543                              void *data, struct drm_file *file_priv)
2544 {
2545         struct drm_mode_crtc_lut *crtc_lut = data;
2546         struct drm_mode_object *obj;
2547         struct drm_crtc *crtc;
2548         void *r_base, *g_base, *b_base;
2549         int size;
2550         int ret = 0;
2551
2552         mutex_lock(&dev->mode_config.mutex);
2553         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2554         if (!obj) {
2555                 ret = -EINVAL;
2556                 goto out;
2557         }
2558         crtc = obj_to_crtc(obj);
2559
2560         /* memcpy into gamma store */
2561         if (crtc_lut->gamma_size != crtc->gamma_size) {
2562                 ret = -EINVAL;
2563                 goto out;
2564         }
2565
2566         size = crtc_lut->gamma_size * (sizeof(uint16_t));
2567         r_base = crtc->gamma_store;
2568         if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2569                 ret = -EFAULT;
2570                 goto out;
2571         }
2572
2573         g_base = r_base + size;
2574         if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2575                 ret = -EFAULT;
2576                 goto out;
2577         }
2578
2579         b_base = g_base + size;
2580         if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2581                 ret = -EFAULT;
2582                 goto out;
2583         }
2584 out:
2585         mutex_unlock(&dev->mode_config.mutex);
2586         return ret;
2587 }
2588
2589 int drm_mode_page_flip_ioctl(struct drm_device *dev,
2590                              void *data, struct drm_file *file_priv)
2591 {
2592         struct drm_mode_crtc_page_flip *page_flip = data;
2593         struct drm_mode_object *obj;
2594         struct drm_crtc *crtc;
2595         struct drm_framebuffer *fb;
2596         struct drm_pending_vblank_event *e = NULL;
2597         unsigned long flags;
2598         int ret = -EINVAL;
2599
2600         if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
2601             page_flip->reserved != 0)
2602                 return -EINVAL;
2603
2604         mutex_lock(&dev->mode_config.mutex);
2605         obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
2606         if (!obj)
2607                 goto out;
2608         crtc = obj_to_crtc(obj);
2609
2610         if (crtc->funcs->page_flip == NULL)
2611                 goto out;
2612
2613         obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
2614         if (!obj)
2615                 goto out;
2616         fb = obj_to_fb(obj);
2617
2618         if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
2619                 ret = -ENOMEM;
2620                 spin_lock_irqsave(&dev->event_lock, flags);
2621                 if (file_priv->event_space < sizeof e->event) {
2622                         spin_unlock_irqrestore(&dev->event_lock, flags);
2623                         goto out;
2624                 }
2625                 file_priv->event_space -= sizeof e->event;
2626                 spin_unlock_irqrestore(&dev->event_lock, flags);
2627
2628                 e = kzalloc(sizeof *e, GFP_KERNEL);
2629                 if (e == NULL) {
2630                         spin_lock_irqsave(&dev->event_lock, flags);
2631                         file_priv->event_space += sizeof e->event;
2632                         spin_unlock_irqrestore(&dev->event_lock, flags);
2633                         goto out;
2634                 }
2635
2636                 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
2637                 e->event.base.length = sizeof e->event;
2638                 e->event.user_data = page_flip->user_data;
2639                 e->base.event = &e->event.base;
2640                 e->base.file_priv = file_priv;
2641                 e->base.destroy =
2642                         (void (*) (struct drm_pending_event *)) kfree;
2643         }
2644
2645         ret = crtc->funcs->page_flip(crtc, fb, e);
2646         if (ret) {
2647                 spin_lock_irqsave(&dev->event_lock, flags);
2648                 file_priv->event_space += sizeof e->event;
2649                 spin_unlock_irqrestore(&dev->event_lock, flags);
2650                 kfree(e);
2651         }
2652
2653 out:
2654         mutex_unlock(&dev->mode_config.mutex);
2655         return ret;
2656 }