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 <linux/export.h>
  35 #include "drm.h"
  36 #include "drmP.h"
  37 #include "drm_crtc.h"
  38 #include "drm_edid.h"
  39 #include "drm_fourcc.h"
  40
  41 struct drm_prop_enum_list {
  42         int type;
  43         char *name;
  44 };
  45
  46 /* Avoid boilerplate.  I'm tired of typing. */
  47 #define DRM_ENUM_NAME_FN(fnname, list)                          \
  48         char *fnname(int val)                                   \
  49         {                                                       \
  50                 int i;                                          \
  51                 for (i = 0; i < ARRAY_SIZE(list); i++) {        \
  52                         if (list[i].type == val)                \
  53                                 return list[i].name;            \
  54                 }                                               \
  55                 return "(unknown)";                             \
  56         }
  57
  58 /*
  59  * Global properties
  60  */
  61 static struct drm_prop_enum_list drm_dpms_enum_list[] =
  62 {       { DRM_MODE_DPMS_ON, "On" },
  63         { DRM_MODE_DPMS_STANDBY, "Standby" },
  64         { DRM_MODE_DPMS_SUSPEND, "Suspend" },
  65         { DRM_MODE_DPMS_OFF, "Off" }
  66 };
  67
  68 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
  69
  70 /*
  71  * Optional properties
  72  */
  73 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
  74 {
  75         { DRM_MODE_SCALE_NONE, "None" },
  76         { DRM_MODE_SCALE_FULLSCREEN, "Full" },
  77         { DRM_MODE_SCALE_CENTER, "Center" },
  78         { DRM_MODE_SCALE_ASPECT, "Full aspect" },
  79 };
  80
  81 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
  82 {
  83         { DRM_MODE_DITHERING_OFF, "Off" },
  84         { DRM_MODE_DITHERING_ON, "On" },
  85         { DRM_MODE_DITHERING_AUTO, "Automatic" },
  86 };
  87
  88 /*
  89  * Non-global properties, but "required" for certain connectors.
  90  */
  91 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
  92 {
  93         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
  94         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
  95         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
  96 };
  97
  98 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
  99
 100 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
 101 {
 102         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
 103         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
 104         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
 105 };
 106
 107 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
 108                  drm_dvi_i_subconnector_enum_list)
 109
 110 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
 111 {
 112         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
 113         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 114         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 115         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 116         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
 117 };
 118
 119 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
 120
 121 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
 122 {
 123         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
 124         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 125         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 126         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 127         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
 128 };
 129
 130 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
 131                  drm_tv_subconnector_enum_list)
 132
 133 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
 134         { DRM_MODE_DIRTY_OFF,      "Off"      },
 135         { DRM_MODE_DIRTY_ON,       "On"       },
 136         { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
 137 };
 138
 139 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
 140                  drm_dirty_info_enum_list)
 141
 142 struct drm_conn_prop_enum_list {
 143         int type;
 144         char *name;
 145         int count;
 146 };
 147
 148 /*
 149  * Connector and encoder types.
 150  */
 151 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
 152 {       { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
 153         { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
 154         { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
 155         { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
 156         { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
 157         { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
 158         { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
 159         { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
 160         { DRM_MODE_CONNECTOR_Component, "Component", 0 },
 161         { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
 162         { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
 163         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
 164         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
 165         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
 166         { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
 167         { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
 168 };
 169
 170 static struct drm_prop_enum_list drm_encoder_enum_list[] =
 171 {       { DRM_MODE_ENCODER_NONE, "None" },
 172         { DRM_MODE_ENCODER_DAC, "DAC" },
 173         { DRM_MODE_ENCODER_TMDS, "TMDS" },
 174         { DRM_MODE_ENCODER_LVDS, "LVDS" },
 175         { DRM_MODE_ENCODER_TVDAC, "TV" },
 176         { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
 177 };
 178
 179 char *drm_get_encoder_name(struct drm_encoder *encoder)
 180 {
 181         static char buf[32];
 182
 183         snprintf(buf, 32, "%s-%d",
 184                  drm_encoder_enum_list[encoder->encoder_type].name,
 185                  encoder->base.id);
 186         return buf;
 187 }
 188 EXPORT_SYMBOL(drm_get_encoder_name);
 189
 190 char *drm_get_connector_name(struct drm_connector *connector)
 191 {
 192         static char buf[32];
 193
 194         snprintf(buf, 32, "%s-%d",
 195                  drm_connector_enum_list[connector->connector_type].name,
 196                  connector->connector_type_id);
 197         return buf;
 198 }
 199 EXPORT_SYMBOL(drm_get_connector_name);
 200
 201 char *drm_get_connector_status_name(enum drm_connector_status status)
 202 {
 203         if (status == connector_status_connected)
 204                 return "connected";
 205         else if (status == connector_status_disconnected)
 206                 return "disconnected";
 207         else
 208                 return "unknown";
 209 }
 210
 211 /**
 212  * drm_mode_object_get - allocate a new identifier
 213  * @dev: DRM device
 214  * @ptr: object pointer, used to generate unique ID
 215  * @type: object type
 216  *
 217  * LOCKING:
 218  *
 219  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 220  * for tracking modes, CRTCs and connectors.
 221  *
 222  * RETURNS:
 223  * New unique (relative to other objects in @dev) integer identifier for the
 224  * object.
 225  */
 226 static int drm_mode_object_get(struct drm_device *dev,
 227                                struct drm_mode_object *obj, uint32_t obj_type)
 228 {
 229         int new_id = 0;
 230         int ret;
 231
 232 again:
 233         if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
 234                 DRM_ERROR("Ran out memory getting a mode number\n");
 235                 return -EINVAL;
 236         }
 237
 238         mutex_lock(&dev->mode_config.idr_mutex);
 239         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
 240         mutex_unlock(&dev->mode_config.idr_mutex);
 241         if (ret == -EAGAIN)
 242                 goto again;
 243
 244         obj->id = new_id;
 245         obj->type = obj_type;
 246         return 0;
 247 }
 248
 249 /**
 250  * drm_mode_object_put - free an identifer
 251  * @dev: DRM device
 252  * @id: ID to free
 253  *
 254  * LOCKING:
 255  * Caller must hold DRM mode_config lock.
 256  *
 257  * Free @id from @dev's unique identifier pool.
 258  */
 259 static void drm_mode_object_put(struct drm_device *dev,
 260                                 struct drm_mode_object *object)
 261 {
 262         mutex_lock(&dev->mode_config.idr_mutex);
 263         idr_remove(&dev->mode_config.crtc_idr, object->id);
 264         mutex_unlock(&dev->mode_config.idr_mutex);
 265 }
 266
 267 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 268                 uint32_t id, uint32_t type)
 269 {
 270         struct drm_mode_object *obj = NULL;
 271
 272         mutex_lock(&dev->mode_config.idr_mutex);
 273         obj = idr_find(&dev->mode_config.crtc_idr, id);
 274         if (!obj || (obj->type != type) || (obj->id != id))
 275                 obj = NULL;
 276         mutex_unlock(&dev->mode_config.idr_mutex);
 277
 278         return obj;
 279 }
 280 EXPORT_SYMBOL(drm_mode_object_find);
 281
 282 /**
 283  * drm_framebuffer_init - initialize a framebuffer
 284  * @dev: DRM device
 285  *
 286  * LOCKING:
 287  * Caller must hold mode config lock.
 288  *
 289  * Allocates an ID for the framebuffer's parent mode object, sets its mode
 290  * functions & device file and adds it to the master fd list.
 291  *
 292  * RETURNS:
 293  * Zero on success, error code on failure.
 294  */
 295 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 296                          const struct drm_framebuffer_funcs *funcs)
 297 {
 298         int ret;
 299
 300         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
 301         if (ret) {
 302                 return ret;
 303         }
 304
 305         fb->dev = dev;
 306         fb->funcs = funcs;
 307         dev->mode_config.num_fb++;
 308         list_add(&fb->head, &dev->mode_config.fb_list);
 309
 310         return 0;
 311 }
 312 EXPORT_SYMBOL(drm_framebuffer_init);
 313
 314 /**
 315  * drm_framebuffer_cleanup - remove a framebuffer object
 316  * @fb: framebuffer to remove
 317  *
 318  * LOCKING:
 319  * Caller must hold mode config lock.
 320  *
 321  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 322  * it, setting it to NULL.
 323  */
 324 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 325 {
 326         struct drm_device *dev = fb->dev;
 327         struct drm_crtc *crtc;
 328         struct drm_plane *plane;
 329         struct drm_mode_set set;
 330         int ret;
 331
 332         /* remove from any CRTC */
 333         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 334                 if (crtc->fb == fb) {
 335                         /* should turn off the crtc */
 336                         memset(&set, 0, sizeof(struct drm_mode_set));
 337                         set.crtc = crtc;
 338                         set.fb = NULL;
 339                         ret = crtc->funcs->set_config(&set);
 340                         if (ret)
 341                                 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
 342                 }
 343         }
 344
 345         list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
 346                 if (plane->fb == fb) {
 347                         /* should turn off the crtc */
 348                         ret = plane->funcs->disable_plane(plane);
 349                         if (ret)
 350                                 DRM_ERROR("failed to disable plane with busy fb\n");
 351                 }
 352         }
 353
 354         drm_mode_object_put(dev, &fb->base);
 355         list_del(&fb->head);
 356         dev->mode_config.num_fb--;
 357 }
 358 EXPORT_SYMBOL(drm_framebuffer_cleanup);
 359
 360 /**
 361  * drm_crtc_init - Initialise a new CRTC object
 362  * @dev: DRM device
 363  * @crtc: CRTC object to init
 364  * @funcs: callbacks for the new CRTC
 365  *
 366  * LOCKING:
 367  * Caller must hold mode config lock.
 368  *
 369  * Inits a new object created as base part of an driver crtc object.
 370  */
 371 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 372                    const struct drm_crtc_funcs *funcs)
 373 {
 374         crtc->dev = dev;
 375         crtc->funcs = funcs;
 376
 377         mutex_lock(&dev->mode_config.mutex);
 378         drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
 379
 380         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
 381         dev->mode_config.num_crtc++;
 382         mutex_unlock(&dev->mode_config.mutex);
 383 }
 384 EXPORT_SYMBOL(drm_crtc_init);
 385
 386 /**
 387  * drm_crtc_cleanup - Cleans up the core crtc usage.
 388  * @crtc: CRTC to cleanup
 389  *
 390  * LOCKING:
 391  * Caller must hold mode config lock.
 392  *
 393  * Cleanup @crtc. Removes from drm modesetting space
 394  * does NOT free object, caller does that.
 395  */
 396 void drm_crtc_cleanup(struct drm_crtc *crtc)
 397 {
 398         struct drm_device *dev = crtc->dev;
 399
 400         if (crtc->gamma_store) {
 401                 kfree(crtc->gamma_store);
 402                 crtc->gamma_store = NULL;
 403         }
 404
 405         drm_mode_object_put(dev, &crtc->base);
 406         list_del(&crtc->head);
 407         dev->mode_config.num_crtc--;
 408 }
 409 EXPORT_SYMBOL(drm_crtc_cleanup);
 410
 411 /**
 412  * drm_mode_probed_add - add a mode to a connector's probed mode list
 413  * @connector: connector the new mode
 414  * @mode: mode data
 415  *
 416  * LOCKING:
 417  * Caller must hold mode config lock.
 418  *
 419  * Add @mode to @connector's mode list for later use.
 420  */
 421 void drm_mode_probed_add(struct drm_connector *connector,
 422                          struct drm_display_mode *mode)
 423 {
 424         list_add(&mode->head, &connector->probed_modes);
 425 }
 426 EXPORT_SYMBOL(drm_mode_probed_add);
 427
 428 /**
 429  * drm_mode_remove - remove and free a mode
 430  * @connector: connector list to modify
 431  * @mode: mode to remove
 432  *
 433  * LOCKING:
 434  * Caller must hold mode config lock.
 435  *
 436  * Remove @mode from @connector's mode list, then free it.
 437  */
 438 void drm_mode_remove(struct drm_connector *connector,
 439                      struct drm_display_mode *mode)
 440 {
 441         list_del(&mode->head);
 442         kfree(mode);
 443 }
 444 EXPORT_SYMBOL(drm_mode_remove);
 445
 446 /**
 447  * drm_connector_init - Init a preallocated connector
 448  * @dev: DRM device
 449  * @connector: the connector to init
 450  * @funcs: callbacks for this connector
 451  * @name: user visible name of the connector
 452  *
 453  * LOCKING:
 454  * Caller must hold @dev's mode_config lock.
 455  *
 456  * Initialises a preallocated connector. Connectors should be
 457  * subclassed as part of driver connector objects.
 458  */
 459 void drm_connector_init(struct drm_device *dev,
 460                      struct drm_connector *connector,
 461                      const struct drm_connector_funcs *funcs,
 462                      int connector_type)
 463 {
 464         mutex_lock(&dev->mode_config.mutex);
 465
 466         connector->dev = dev;
 467         connector->funcs = funcs;
 468         drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
 469         connector->connector_type = connector_type;
 470         connector->connector_type_id =
 471                 ++drm_connector_enum_list[connector_type].count; /* TODO */
 472         INIT_LIST_HEAD(&connector->user_modes);
 473         INIT_LIST_HEAD(&connector->probed_modes);
 474         INIT_LIST_HEAD(&connector->modes);
 475         connector->edid_blob_ptr = NULL;
 476
 477         list_add_tail(&connector->head, &dev->mode_config.connector_list);
 478         dev->mode_config.num_connector++;
 479
 480         if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
 481                 drm_connector_attach_property(connector,
 482                                               dev->mode_config.edid_property,
 483                                               0);
 484
 485         drm_connector_attach_property(connector,
 486                                       dev->mode_config.dpms_property, 0);
 487
 488         mutex_unlock(&dev->mode_config.mutex);
 489 }
 490 EXPORT_SYMBOL(drm_connector_init);
 491
 492 /**
 493  * drm_connector_cleanup - cleans up an initialised connector
 494  * @connector: connector to cleanup
 495  *
 496  * LOCKING:
 497  * Caller must hold @dev's mode_config lock.
 498  *
 499  * Cleans up the connector but doesn't free the object.
 500  */
 501 void drm_connector_cleanup(struct drm_connector *connector)
 502 {
 503         struct drm_device *dev = connector->dev;
 504         struct drm_display_mode *mode, *t;
 505
 506         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
 507                 drm_mode_remove(connector, mode);
 508
 509         list_for_each_entry_safe(mode, t, &connector->modes, head)
 510                 drm_mode_remove(connector, mode);
 511
 512         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
 513                 drm_mode_remove(connector, mode);
 514
 515         mutex_lock(&dev->mode_config.mutex);
 516         drm_mode_object_put(dev, &connector->base);
 517         list_del(&connector->head);
 518         dev->mode_config.num_connector--;
 519         mutex_unlock(&dev->mode_config.mutex);
 520 }
 521 EXPORT_SYMBOL(drm_connector_cleanup);
 522
 523 void drm_encoder_init(struct drm_device *dev,
 524                       struct drm_encoder *encoder,
 525                       const struct drm_encoder_funcs *funcs,
 526                       int encoder_type)
 527 {
 528         mutex_lock(&dev->mode_config.mutex);
 529
 530         encoder->dev = dev;
 531
 532         drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
 533         encoder->encoder_type = encoder_type;
 534         encoder->funcs = funcs;
 535
 536         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
 537         dev->mode_config.num_encoder++;
 538
 539         mutex_unlock(&dev->mode_config.mutex);
 540 }
 541 EXPORT_SYMBOL(drm_encoder_init);
 542
 543 void drm_encoder_cleanup(struct drm_encoder *encoder)
 544 {
 545         struct drm_device *dev = encoder->dev;
 546         mutex_lock(&dev->mode_config.mutex);
 547         drm_mode_object_put(dev, &encoder->base);
 548         list_del(&encoder->head);
 549         dev->mode_config.num_encoder--;
 550         mutex_unlock(&dev->mode_config.mutex);
 551 }
 552 EXPORT_SYMBOL(drm_encoder_cleanup);
 553
 554 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
 555                    unsigned long possible_crtcs,
 556                    const struct drm_plane_funcs *funcs,
 557                    const uint32_t *formats, uint32_t format_count)
 558 {
 559         mutex_lock(&dev->mode_config.mutex);
 560
 561         plane->dev = dev;
 562         drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
 563         plane->funcs = funcs;
 564         plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
 565                                       GFP_KERNEL);
 566         if (!plane->format_types) {
 567                 DRM_DEBUG_KMS("out of memory when allocating plane\n");
 568                 drm_mode_object_put(dev, &plane->base);
 569                 mutex_unlock(&dev->mode_config.mutex);
 570                 return -ENOMEM;
 571         }
 572
 573         memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
 574         plane->format_count = format_count;
 575         plane->possible_crtcs = possible_crtcs;
 576
 577         list_add_tail(&plane->head, &dev->mode_config.plane_list);
 578         dev->mode_config.num_plane++;
 579
 580         mutex_unlock(&dev->mode_config.mutex);
 581
 582         return 0;
 583 }
 584 EXPORT_SYMBOL(drm_plane_init);
 585
 586 void drm_plane_cleanup(struct drm_plane *plane)
 587 {
 588         struct drm_device *dev = plane->dev;
 589
 590         mutex_lock(&dev->mode_config.mutex);
 591         kfree(plane->format_types);
 592         drm_mode_object_put(dev, &plane->base);
 593         list_del(&plane->head);
 594         dev->mode_config.num_plane--;
 595         mutex_unlock(&dev->mode_config.mutex);
 596 }
 597 EXPORT_SYMBOL(drm_plane_cleanup);
 598
 599 /**
 600  * drm_mode_create - create a new display mode
 601  * @dev: DRM device
 602  *
 603  * LOCKING:
 604  * Caller must hold DRM mode_config lock.
 605  *
 606  * Create a new drm_display_mode, give it an ID, and return it.
 607  *
 608  * RETURNS:
 609  * Pointer to new mode on success, NULL on error.
 610  */
 611 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
 612 {
 613         struct drm_display_mode *nmode;
 614
 615         nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
 616         if (!nmode)
 617                 return NULL;
 618
 619         drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
 620         return nmode;
 621 }
 622 EXPORT_SYMBOL(drm_mode_create);
 623
 624 /**
 625  * drm_mode_destroy - remove a mode
 626  * @dev: DRM device
 627  * @mode: mode to remove
 628  *
 629  * LOCKING:
 630  * Caller must hold mode config lock.
 631  *
 632  * Free @mode's unique identifier, then free it.
 633  */
 634 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
 635 {
 636         drm_mode_object_put(dev, &mode->base);
 637
 638         kfree(mode);
 639 }
 640 EXPORT_SYMBOL(drm_mode_destroy);
 641
 642 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
 643 {
 644         struct drm_property *edid;
 645         struct drm_property *dpms;
 646         int i;
 647
 648         /*
 649          * Standard properties (apply to all connectors)
 650          */
 651         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
 652                                    DRM_MODE_PROP_IMMUTABLE,
 653                                    "EDID", 0);
 654         dev->mode_config.edid_property = edid;
 655
 656         dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 657                                    "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
 658         for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
 659                 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
 660                                       drm_dpms_enum_list[i].name);
 661         dev->mode_config.dpms_property = dpms;
 662
 663         return 0;
 664 }
 665
 666 /**
 667  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 668  * @dev: DRM device
 669  *
 670  * Called by a driver the first time a DVI-I connector is made.
 671  */
 672 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
 673 {
 674         struct drm_property *dvi_i_selector;
 675         struct drm_property *dvi_i_subconnector;
 676         int i;
 677
 678         if (dev->mode_config.dvi_i_select_subconnector_property)
 679                 return 0;
 680
 681         dvi_i_selector =
 682                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 683                                     "select subconnector",
 684                                     ARRAY_SIZE(drm_dvi_i_select_enum_list));
 685         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
 686                 drm_property_add_enum(dvi_i_selector, i,
 687                                       drm_dvi_i_select_enum_list[i].type,
 688                                       drm_dvi_i_select_enum_list[i].name);
 689         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
 690
 691         dvi_i_subconnector =
 692                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 693                                     DRM_MODE_PROP_IMMUTABLE,
 694                                     "subconnector",
 695                                     ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
 696         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
 697                 drm_property_add_enum(dvi_i_subconnector, i,
 698                                       drm_dvi_i_subconnector_enum_list[i].type,
 699                                       drm_dvi_i_subconnector_enum_list[i].name);
 700         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
 701
 702         return 0;
 703 }
 704 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
 705
 706 /**
 707  * drm_create_tv_properties - create TV specific connector properties
 708  * @dev: DRM device
 709  * @num_modes: number of different TV formats (modes) supported
 710  * @modes: array of pointers to strings containing name of each format
 711  *
 712  * Called by a driver's TV initialization routine, this function creates
 713  * the TV specific connector properties for a given device.  Caller is
 714  * responsible for allocating a list of format names and passing them to
 715  * this routine.
 716  */
 717 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
 718                                   char *modes[])
 719 {
 720         struct drm_property *tv_selector;
 721         struct drm_property *tv_subconnector;
 722         int i;
 723
 724         if (dev->mode_config.tv_select_subconnector_property)
 725                 return 0;
 726
 727         /*
 728          * Basic connector properties
 729          */
 730         tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 731                                           "select subconnector",
 732                                           ARRAY_SIZE(drm_tv_select_enum_list));
 733         for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
 734                 drm_property_add_enum(tv_selector, i,
 735                                       drm_tv_select_enum_list[i].type,
 736                                       drm_tv_select_enum_list[i].name);
 737         dev->mode_config.tv_select_subconnector_property = tv_selector;
 738
 739         tv_subconnector =
 740                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 741                                     DRM_MODE_PROP_IMMUTABLE, "subconnector",
 742                                     ARRAY_SIZE(drm_tv_subconnector_enum_list));
 743         for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
 744                 drm_property_add_enum(tv_subconnector, i,
 745                                       drm_tv_subconnector_enum_list[i].type,
 746                                       drm_tv_subconnector_enum_list[i].name);
 747         dev->mode_config.tv_subconnector_property = tv_subconnector;
 748
 749         /*
 750          * Other, TV specific properties: margins & TV modes.
 751          */
 752         dev->mode_config.tv_left_margin_property =
 753                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 754                                     "left margin", 2);
 755         dev->mode_config.tv_left_margin_property->values[0] = 0;
 756         dev->mode_config.tv_left_margin_property->values[1] = 100;
 757
 758         dev->mode_config.tv_right_margin_property =
 759                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 760                                     "right margin", 2);
 761         dev->mode_config.tv_right_margin_property->values[0] = 0;
 762         dev->mode_config.tv_right_margin_property->values[1] = 100;
 763
 764         dev->mode_config.tv_top_margin_property =
 765                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 766                                     "top margin", 2);
 767         dev->mode_config.tv_top_margin_property->values[0] = 0;
 768         dev->mode_config.tv_top_margin_property->values[1] = 100;
 769
 770         dev->mode_config.tv_bottom_margin_property =
 771                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 772                                     "bottom margin", 2);
 773         dev->mode_config.tv_bottom_margin_property->values[0] = 0;
 774         dev->mode_config.tv_bottom_margin_property->values[1] = 100;
 775
 776         dev->mode_config.tv_mode_property =
 777                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 778                                     "mode", num_modes);
 779         for (i = 0; i < num_modes; i++)
 780                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
 781                                       i, modes[i]);
 782
 783         dev->mode_config.tv_brightness_property =
 784                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 785                                     "brightness", 2);
 786         dev->mode_config.tv_brightness_property->values[0] = 0;
 787         dev->mode_config.tv_brightness_property->values[1] = 100;
 788
 789         dev->mode_config.tv_contrast_property =
 790                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 791                                     "contrast", 2);
 792         dev->mode_config.tv_contrast_property->values[0] = 0;
 793         dev->mode_config.tv_contrast_property->values[1] = 100;
 794
 795         dev->mode_config.tv_flicker_reduction_property =
 796                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 797                                     "flicker reduction", 2);
 798         dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
 799         dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
 800
 801         dev->mode_config.tv_overscan_property =
 802                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 803                                     "overscan", 2);
 804         dev->mode_config.tv_overscan_property->values[0] = 0;
 805         dev->mode_config.tv_overscan_property->values[1] = 100;
 806
 807         dev->mode_config.tv_saturation_property =
 808                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 809                                     "saturation", 2);
 810         dev->mode_config.tv_saturation_property->values[0] = 0;
 811         dev->mode_config.tv_saturation_property->values[1] = 100;
 812
 813         dev->mode_config.tv_hue_property =
 814                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 815                                     "hue", 2);
 816         dev->mode_config.tv_hue_property->values[0] = 0;
 817         dev->mode_config.tv_hue_property->values[1] = 100;
 818
 819         return 0;
 820 }
 821 EXPORT_SYMBOL(drm_mode_create_tv_properties);
 822
 823 /**
 824  * drm_mode_create_scaling_mode_property - create scaling mode property
 825  * @dev: DRM device
 826  *
 827  * Called by a driver the first time it's needed, must be attached to desired
 828  * connectors.
 829  */
 830 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 831 {
 832         struct drm_property *scaling_mode;
 833         int i;
 834
 835         if (dev->mode_config.scaling_mode_property)
 836                 return 0;
 837
 838         scaling_mode =
 839                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
 840                                     ARRAY_SIZE(drm_scaling_mode_enum_list));
 841         for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
 842                 drm_property_add_enum(scaling_mode, i,
 843                                       drm_scaling_mode_enum_list[i].type,
 844                                       drm_scaling_mode_enum_list[i].name);
 845
 846         dev->mode_config.scaling_mode_property = scaling_mode;
 847
 848         return 0;
 849 }
 850 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
 851
 852 /**
 853  * drm_mode_create_dithering_property - create dithering property
 854  * @dev: DRM device
 855  *
 856  * Called by a driver the first time it's needed, must be attached to desired
 857  * connectors.
 858  */
 859 int drm_mode_create_dithering_property(struct drm_device *dev)
 860 {
 861         struct drm_property *dithering_mode;
 862         int i;
 863
 864         if (dev->mode_config.dithering_mode_property)
 865                 return 0;
 866
 867         dithering_mode =
 868                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
 869                                     ARRAY_SIZE(drm_dithering_mode_enum_list));
 870         for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
 871                 drm_property_add_enum(dithering_mode, i,
 872                                       drm_dithering_mode_enum_list[i].type,
 873                                       drm_dithering_mode_enum_list[i].name);
 874         dev->mode_config.dithering_mode_property = dithering_mode;
 875
 876         return 0;
 877 }
 878 EXPORT_SYMBOL(drm_mode_create_dithering_property);
 879
 880 /**
 881  * drm_mode_create_dirty_property - create dirty property
 882  * @dev: DRM device
 883  *
 884  * Called by a driver the first time it's needed, must be attached to desired
 885  * connectors.
 886  */
 887 int drm_mode_create_dirty_info_property(struct drm_device *dev)
 888 {
 889         struct drm_property *dirty_info;
 890         int i;
 891
 892         if (dev->mode_config.dirty_info_property)
 893                 return 0;
 894
 895         dirty_info =
 896                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 897                                     DRM_MODE_PROP_IMMUTABLE,
 898                                     "dirty",
 899                                     ARRAY_SIZE(drm_dirty_info_enum_list));
 900         for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
 901                 drm_property_add_enum(dirty_info, i,
 902                                       drm_dirty_info_enum_list[i].type,
 903                                       drm_dirty_info_enum_list[i].name);
 904         dev->mode_config.dirty_info_property = dirty_info;
 905
 906         return 0;
 907 }
 908 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
 909
 910 /**
 911  * drm_mode_config_init - initialize DRM mode_configuration structure
 912  * @dev: DRM device
 913  *
 914  * LOCKING:
 915  * None, should happen single threaded at init time.
 916  *
 917  * Initialize @dev's mode_config structure, used for tracking the graphics
 918  * configuration of @dev.
 919  */
 920 void drm_mode_config_init(struct drm_device *dev)
 921 {
 922         mutex_init(&dev->mode_config.mutex);
 923         mutex_init(&dev->mode_config.idr_mutex);
 924         INIT_LIST_HEAD(&dev->mode_config.fb_list);
 925         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
 926         INIT_LIST_HEAD(&dev->mode_config.connector_list);
 927         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 928         INIT_LIST_HEAD(&dev->mode_config.property_list);
 929         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
 930         INIT_LIST_HEAD(&dev->mode_config.plane_list);
 931         idr_init(&dev->mode_config.crtc_idr);
 932
 933         mutex_lock(&dev->mode_config.mutex);
 934         drm_mode_create_standard_connector_properties(dev);
 935         mutex_unlock(&dev->mode_config.mutex);
 936
 937         /* Just to be sure */
 938         dev->mode_config.num_fb = 0;
 939         dev->mode_config.num_connector = 0;
 940         dev->mode_config.num_crtc = 0;
 941         dev->mode_config.num_encoder = 0;
 942 }
 943 EXPORT_SYMBOL(drm_mode_config_init);
 944
 945 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
 946 {
 947         uint32_t total_objects = 0;
 948
 949         total_objects += dev->mode_config.num_crtc;
 950         total_objects += dev->mode_config.num_connector;
 951         total_objects += dev->mode_config.num_encoder;
 952
 953         group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
 954         if (!group->id_list)
 955                 return -ENOMEM;
 956
 957         group->num_crtcs = 0;
 958         group->num_connectors = 0;
 959         group->num_encoders = 0;
 960         return 0;
 961 }
 962
 963 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 964                                      struct drm_mode_group *group)
 965 {
 966         struct drm_crtc *crtc;
 967         struct drm_encoder *encoder;
 968         struct drm_connector *connector;
 969         int ret;
 970
 971         if ((ret = drm_mode_group_init(dev, group)))
 972                 return ret;
 973
 974         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 975                 group->id_list[group->num_crtcs++] = crtc->base.id;
 976
 977         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 978                 group->id_list[group->num_crtcs + group->num_encoders++] =
 979                 encoder->base.id;
 980
 981         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 982                 group->id_list[group->num_crtcs + group->num_encoders +
 983                                group->num_connectors++] = connector->base.id;
 984
 985         return 0;
 986 }
 987
 988 /**
 989  * drm_mode_config_cleanup - free up DRM mode_config info
 990  * @dev: DRM device
 991  *
 992  * LOCKING:
 993  * Caller must hold mode config lock.
 994  *
 995  * Free up all the connectors and CRTCs associated with this DRM device, then
 996  * free up the framebuffers and associated buffer objects.
 997  *
 998  * FIXME: cleanup any dangling user buffer objects too
 999  */
1000 void drm_mode_config_cleanup(struct drm_device *dev)
1001 {
1002         struct drm_connector *connector, *ot;
1003         struct drm_crtc *crtc, *ct;
1004         struct drm_encoder *encoder, *enct;
1005         struct drm_framebuffer *fb, *fbt;
1006         struct drm_property *property, *pt;
1007         struct drm_plane *plane, *plt;
1008
1009         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
1010                                  head) {
1011                 encoder->funcs->destroy(encoder);
1012         }
1013
1014         list_for_each_entry_safe(connector, ot,
1015                                  &dev->mode_config.connector_list, head) {
1016                 connector->funcs->destroy(connector);
1017         }
1018
1019         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
1020                                  head) {
1021                 drm_property_destroy(dev, property);
1022         }
1023
1024         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1025                 fb->funcs->destroy(fb);
1026         }
1027
1028         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1029                 crtc->funcs->destroy(crtc);
1030         }
1031
1032         list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1033                                  head) {
1034                 plane->funcs->destroy(plane);
1035         }
1036 }
1037 EXPORT_SYMBOL(drm_mode_config_cleanup);
1038
1039 /**
1040  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1041  * @out: drm_mode_modeinfo struct to return to the user
1042  * @in: drm_display_mode to use
1043  *
1044  * LOCKING:
1045  * None.
1046  *
1047  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1048  * the user.
1049  */
1050 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1051                                struct drm_display_mode *in)
1052 {
1053         out->clock = in->clock;
1054         out->hdisplay = in->hdisplay;
1055         out->hsync_start = in->hsync_start;
1056         out->hsync_end = in->hsync_end;
1057         out->htotal = in->htotal;
1058         out->hskew = in->hskew;
1059         out->vdisplay = in->vdisplay;
1060         out->vsync_start = in->vsync_start;
1061         out->vsync_end = in->vsync_end;
1062         out->vtotal = in->vtotal;
1063         out->vscan = in->vscan;
1064         out->vrefresh = in->vrefresh;
1065         out->flags = in->flags;
1066         out->type = in->type;
1067         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1068         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1069 }
1070
1071 /**
1072  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1073  * @out: drm_display_mode to return to the user
1074  * @in: drm_mode_modeinfo to use
1075  *
1076  * LOCKING:
1077  * None.
1078  *
1079  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1080  * the caller.
1081  */
1082 void drm_crtc_convert_umode(struct drm_display_mode *out,
1083                             struct drm_mode_modeinfo *in)
1084 {
1085         out->clock = in->clock;
1086         out->hdisplay = in->hdisplay;
1087         out->hsync_start = in->hsync_start;
1088         out->hsync_end = in->hsync_end;
1089         out->htotal = in->htotal;
1090         out->hskew = in->hskew;
1091         out->vdisplay = in->vdisplay;
1092         out->vsync_start = in->vsync_start;
1093         out->vsync_end = in->vsync_end;
1094         out->vtotal = in->vtotal;
1095         out->vscan = in->vscan;
1096         out->vrefresh = in->vrefresh;
1097         out->flags = in->flags;
1098         out->type = in->type;
1099         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1100         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1101 }
1102
1103 /**
1104  * drm_mode_getresources - get graphics configuration
1105  * @inode: inode from the ioctl
1106  * @filp: file * from the ioctl
1107  * @cmd: cmd from ioctl
1108  * @arg: arg from ioctl
1109  *
1110  * LOCKING:
1111  * Takes mode config lock.
1112  *
1113  * Construct a set of configuration description structures and return
1114  * them to the user, including CRTC, connector and framebuffer configuration.
1115  *
1116  * Called by the user via ioctl.
1117  *
1118  * RETURNS:
1119  * Zero on success, errno on failure.
1120  */
1121 int drm_mode_getresources(struct drm_device *dev, void *data,
1122                           struct drm_file *file_priv)
1123 {
1124         struct drm_mode_card_res *card_res = data;
1125         struct list_head *lh;
1126         struct drm_framebuffer *fb;
1127         struct drm_connector *connector;
1128         struct drm_crtc *crtc;
1129         struct drm_encoder *encoder;
1130         int ret = 0;
1131         int connector_count = 0;
1132         int crtc_count = 0;
1133         int fb_count = 0;
1134         int encoder_count = 0;
1135         int copied = 0, i;
1136         uint32_t __user *fb_id;
1137         uint32_t __user *crtc_id;
1138         uint32_t __user *connector_id;
1139         uint32_t __user *encoder_id;
1140         struct drm_mode_group *mode_group;
1141
1142         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1143                 return -EINVAL;
1144
1145         mutex_lock(&dev->mode_config.mutex);
1146
1147         /*
1148          * For the non-control nodes we need to limit the list of resources
1149          * by IDs in the group list for this node
1150          */
1151         list_for_each(lh, &file_priv->fbs)
1152                 fb_count++;
1153
1154         mode_group = &file_priv->master->minor->mode_group;
1155         if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1156
1157                 list_for_each(lh, &dev->mode_config.crtc_list)
1158                         crtc_count++;
1159
1160                 list_for_each(lh, &dev->mode_config.connector_list)
1161                         connector_count++;
1162
1163                 list_for_each(lh, &dev->mode_config.encoder_list)
1164                         encoder_count++;
1165         } else {
1166
1167                 crtc_count = mode_group->num_crtcs;
1168                 connector_count = mode_group->num_connectors;
1169                 encoder_count = mode_group->num_encoders;
1170         }
1171
1172         card_res->max_height = dev->mode_config.max_height;
1173         card_res->min_height = dev->mode_config.min_height;
1174         card_res->max_width = dev->mode_config.max_width;
1175         card_res->min_width = dev->mode_config.min_width;
1176
1177         /* handle this in 4 parts */
1178         /* FBs */
1179         if (card_res->count_fbs >= fb_count) {
1180                 copied = 0;
1181                 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1182                 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1183                         if (put_user(fb->base.id, fb_id + copied)) {
1184                                 ret = -EFAULT;
1185                                 goto out;
1186                         }
1187                         copied++;
1188                 }
1189         }
1190         card_res->count_fbs = fb_count;
1191
1192         /* CRTCs */
1193         if (card_res->count_crtcs >= crtc_count) {
1194                 copied = 0;
1195                 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1196                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1197                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1198                                             head) {
1199                                 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1200                                 if (put_user(crtc->base.id, crtc_id + copied)) {
1201                                         ret = -EFAULT;
1202                                         goto out;
1203                                 }
1204                                 copied++;
1205                         }
1206                 } else {
1207                         for (i = 0; i < mode_group->num_crtcs; i++) {
1208                                 if (put_user(mode_group->id_list[i],
1209                                              crtc_id + copied)) {
1210                                         ret = -EFAULT;
1211                                         goto out;
1212                                 }
1213                                 copied++;
1214                         }
1215                 }
1216         }
1217         card_res->count_crtcs = crtc_count;
1218
1219         /* Encoders */
1220         if (card_res->count_encoders >= encoder_count) {
1221                 copied = 0;
1222                 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1223                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1224                         list_for_each_entry(encoder,
1225                                             &dev->mode_config.encoder_list,
1226                                             head) {
1227                                 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1228                                                 drm_get_encoder_name(encoder));
1229                                 if (put_user(encoder->base.id, encoder_id +
1230                                              copied)) {
1231                                         ret = -EFAULT;
1232                                         goto out;
1233                                 }
1234                                 copied++;
1235                         }
1236                 } else {
1237                         for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1238                                 if (put_user(mode_group->id_list[i],
1239                                              encoder_id + copied)) {
1240                                         ret = -EFAULT;
1241                                         goto out;
1242                                 }
1243                                 copied++;
1244                         }
1245
1246                 }
1247         }
1248         card_res->count_encoders = encoder_count;
1249
1250         /* Connectors */
1251         if (card_res->count_connectors >= connector_count) {
1252                 copied = 0;
1253                 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1254                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1255                         list_for_each_entry(connector,
1256                                             &dev->mode_config.connector_list,
1257                                             head) {
1258                                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1259                                         connector->base.id,
1260                                         drm_get_connector_name(connector));
1261                                 if (put_user(connector->base.id,
1262                                              connector_id + copied)) {
1263                                         ret = -EFAULT;
1264                                         goto out;
1265                                 }
1266                                 copied++;
1267                         }
1268                 } else {
1269                         int start = mode_group->num_crtcs +
1270                                 mode_group->num_encoders;
1271                         for (i = start; i < start + mode_group->num_connectors; i++) {
1272                                 if (put_user(mode_group->id_list[i],
1273                                              connector_id + copied)) {
1274                                         ret = -EFAULT;
1275                                         goto out;
1276                                 }
1277                                 copied++;
1278                         }
1279                 }
1280         }
1281         card_res->count_connectors = connector_count;
1282
1283         DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1284                   card_res->count_connectors, card_res->count_encoders);
1285
1286 out:
1287         mutex_unlock(&dev->mode_config.mutex);
1288         return ret;
1289 }
1290
1291 /**
1292  * drm_mode_getcrtc - get CRTC configuration
1293  * @inode: inode from the ioctl
1294  * @filp: file * from the ioctl
1295  * @cmd: cmd from ioctl
1296  * @arg: arg from ioctl
1297  *
1298  * LOCKING:
1299  * Caller? (FIXME)
1300  *
1301  * Construct a CRTC configuration structure to return to the user.
1302  *
1303  * Called by the user via ioctl.
1304  *
1305  * RETURNS:
1306  * Zero on success, errno on failure.
1307  */
1308 int drm_mode_getcrtc(struct drm_device *dev,
1309                      void *data, struct drm_file *file_priv)
1310 {
1311         struct drm_mode_crtc *crtc_resp = data;
1312         struct drm_crtc *crtc;
1313         struct drm_mode_object *obj;
1314         int ret = 0;
1315
1316         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1317                 return -EINVAL;
1318
1319         mutex_lock(&dev->mode_config.mutex);
1320
1321         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1322                                    DRM_MODE_OBJECT_CRTC);
1323         if (!obj) {
1324                 ret = -EINVAL;
1325                 goto out;
1326         }
1327         crtc = obj_to_crtc(obj);
1328
1329         crtc_resp->x = crtc->x;
1330         crtc_resp->y = crtc->y;
1331         crtc_resp->gamma_size = crtc->gamma_size;
1332         if (crtc->fb)
1333                 crtc_resp->fb_id = crtc->fb->base.id;
1334         else
1335                 crtc_resp->fb_id = 0;
1336
1337         if (crtc->enabled) {
1338
1339                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1340                 crtc_resp->mode_valid = 1;
1341
1342         } else {
1343                 crtc_resp->mode_valid = 0;
1344         }
1345
1346 out:
1347         mutex_unlock(&dev->mode_config.mutex);
1348         return ret;
1349 }
1350
1351 /**
1352  * drm_mode_getconnector - get connector configuration
1353  * @inode: inode from the ioctl
1354  * @filp: file * from the ioctl
1355  * @cmd: cmd from ioctl
1356  * @arg: arg from ioctl
1357  *
1358  * LOCKING:
1359  * Caller? (FIXME)
1360  *
1361  * Construct a connector configuration structure to return to the user.
1362  *
1363  * Called by the user via ioctl.
1364  *
1365  * RETURNS:
1366  * Zero on success, errno on failure.
1367  */
1368 int drm_mode_getconnector(struct drm_device *dev, void *data,
1369                           struct drm_file *file_priv)
1370 {
1371         struct drm_mode_get_connector *out_resp = data;
1372         struct drm_mode_object *obj;
1373         struct drm_connector *connector;
1374         struct drm_display_mode *mode;
1375         int mode_count = 0;
1376         int props_count = 0;
1377         int encoders_count = 0;
1378         int ret = 0;
1379         int copied = 0;
1380         int i;
1381         struct drm_mode_modeinfo u_mode;
1382         struct drm_mode_modeinfo __user *mode_ptr;
1383         uint32_t __user *prop_ptr;
1384         uint64_t __user *prop_values;
1385         uint32_t __user *encoder_ptr;
1386
1387         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1388                 return -EINVAL;
1389
1390         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1391
1392         DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1393
1394         mutex_lock(&dev->mode_config.mutex);
1395
1396         obj = drm_mode_object_find(dev, out_resp->connector_id,
1397                                    DRM_MODE_OBJECT_CONNECTOR);
1398         if (!obj) {
1399                 ret = -EINVAL;
1400                 goto out;
1401         }
1402         connector = obj_to_connector(obj);
1403
1404         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1405                 if (connector->property_ids[i] != 0) {
1406                         props_count++;
1407                 }
1408         }
1409
1410         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1411                 if (connector->encoder_ids[i] != 0) {
1412                         encoders_count++;
1413                 }
1414         }
1415
1416         if (out_resp->count_modes == 0) {
1417                 connector->funcs->fill_modes(connector,
1418                                              dev->mode_config.max_width,
1419                                              dev->mode_config.max_height);
1420         }
1421
1422         /* delayed so we get modes regardless of pre-fill_modes state */
1423         list_for_each_entry(mode, &connector->modes, head)
1424                 mode_count++;
1425
1426         out_resp->connector_id = connector->base.id;
1427         out_resp->connector_type = connector->connector_type;
1428         out_resp->connector_type_id = connector->connector_type_id;
1429         out_resp->mm_width = connector->display_info.width_mm;
1430         out_resp->mm_height = connector->display_info.height_mm;
1431         out_resp->subpixel = connector->display_info.subpixel_order;
1432         out_resp->connection = connector->status;
1433         if (connector->encoder)
1434                 out_resp->encoder_id = connector->encoder->base.id;
1435         else
1436                 out_resp->encoder_id = 0;
1437
1438         /*
1439          * This ioctl is called twice, once to determine how much space is
1440          * needed, and the 2nd time to fill it.
1441          */
1442         if ((out_resp->count_modes >= mode_count) && mode_count) {
1443                 copied = 0;
1444                 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1445                 list_for_each_entry(mode, &connector->modes, head) {
1446                         drm_crtc_convert_to_umode(&u_mode, mode);
1447                         if (copy_to_user(mode_ptr + copied,
1448                                          &u_mode, sizeof(u_mode))) {
1449                                 ret = -EFAULT;
1450                                 goto out;
1451                         }
1452                         copied++;
1453                 }
1454         }
1455         out_resp->count_modes = mode_count;
1456
1457         if ((out_resp->count_props >= props_count) && props_count) {
1458                 copied = 0;
1459                 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1460                 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1461                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1462                         if (connector->property_ids[i] != 0) {
1463                                 if (put_user(connector->property_ids[i],
1464                                              prop_ptr + copied)) {
1465                                         ret = -EFAULT;
1466                                         goto out;
1467                                 }
1468
1469                                 if (put_user(connector->property_values[i],
1470                                              prop_values + copied)) {
1471                                         ret = -EFAULT;
1472                                         goto out;
1473                                 }
1474                                 copied++;
1475                         }
1476                 }
1477         }
1478         out_resp->count_props = props_count;
1479
1480         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1481                 copied = 0;
1482                 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1483                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1484                         if (connector->encoder_ids[i] != 0) {
1485                                 if (put_user(connector->encoder_ids[i],
1486                                              encoder_ptr + copied)) {
1487                                         ret = -EFAULT;
1488                                         goto out;
1489                                 }
1490                                 copied++;
1491                         }
1492                 }
1493         }
1494         out_resp->count_encoders = encoders_count;
1495
1496 out:
1497         mutex_unlock(&dev->mode_config.mutex);
1498         return ret;
1499 }
1500
1501 int drm_mode_getencoder(struct drm_device *dev, void *data,
1502                         struct drm_file *file_priv)
1503 {
1504         struct drm_mode_get_encoder *enc_resp = data;
1505         struct drm_mode_object *obj;
1506         struct drm_encoder *encoder;
1507         int ret = 0;
1508
1509         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1510                 return -EINVAL;
1511
1512         mutex_lock(&dev->mode_config.mutex);
1513         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1514                                    DRM_MODE_OBJECT_ENCODER);
1515         if (!obj) {
1516                 ret = -EINVAL;
1517                 goto out;
1518         }
1519         encoder = obj_to_encoder(obj);
1520
1521         if (encoder->crtc)
1522                 enc_resp->crtc_id = encoder->crtc->base.id;
1523         else
1524                 enc_resp->crtc_id = 0;
1525         enc_resp->encoder_type = encoder->encoder_type;
1526         enc_resp->encoder_id = encoder->base.id;
1527         enc_resp->possible_crtcs = encoder->possible_crtcs;
1528         enc_resp->possible_clones = encoder->possible_clones;
1529
1530 out:
1531         mutex_unlock(&dev->mode_config.mutex);
1532         return ret;
1533 }
1534
1535 /**
1536  * drm_mode_getplane_res - get plane info
1537  * @dev: DRM device
1538  * @data: ioctl data
1539  * @file_priv: DRM file info
1540  *
1541  * Return an plane count and set of IDs.
1542  */
1543 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1544                             struct drm_file *file_priv)
1545 {
1546         struct drm_mode_get_plane_res *plane_resp = data;
1547         struct drm_mode_config *config;
1548         struct drm_plane *plane;
1549         uint32_t __user *plane_ptr;
1550         int copied = 0, ret = 0;
1551
1552         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1553                 return -EINVAL;
1554
1555         mutex_lock(&dev->mode_config.mutex);
1556         config = &dev->mode_config;
1557
1558         /*
1559          * This ioctl is called twice, once to determine how much space is
1560          * needed, and the 2nd time to fill it.
1561          */
1562         if (config->num_plane &&
1563             (plane_resp->count_planes >= config->num_plane)) {
1564                 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1565
1566                 list_for_each_entry(plane, &config->plane_list, head) {
1567                         if (put_user(plane->base.id, plane_ptr + copied)) {
1568                                 ret = -EFAULT;
1569                                 goto out;
1570                         }
1571                         copied++;
1572                 }
1573         }
1574         plane_resp->count_planes = config->num_plane;
1575
1576 out:
1577         mutex_unlock(&dev->mode_config.mutex);
1578         return ret;
1579 }
1580
1581 /**
1582  * drm_mode_getplane - get plane info
1583  * @dev: DRM device
1584  * @data: ioctl data
1585  * @file_priv: DRM file info
1586  *
1587  * Return plane info, including formats supported, gamma size, any
1588  * current fb, etc.
1589  */
1590 int drm_mode_getplane(struct drm_device *dev, void *data,
1591                         struct drm_file *file_priv)
1592 {
1593         struct drm_mode_get_plane *plane_resp = data;
1594         struct drm_mode_object *obj;
1595         struct drm_plane *plane;
1596         uint32_t __user *format_ptr;
1597         int ret = 0;
1598
1599         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1600                 return -EINVAL;
1601
1602         mutex_lock(&dev->mode_config.mutex);
1603         obj = drm_mode_object_find(dev, plane_resp->plane_id,
1604                                    DRM_MODE_OBJECT_PLANE);
1605         if (!obj) {
1606                 ret = -ENOENT;
1607                 goto out;
1608         }
1609         plane = obj_to_plane(obj);
1610
1611         if (plane->crtc)
1612                 plane_resp->crtc_id = plane->crtc->base.id;
1613         else
1614                 plane_resp->crtc_id = 0;
1615
1616         if (plane->fb)
1617                 plane_resp->fb_id = plane->fb->base.id;
1618         else
1619                 plane_resp->fb_id = 0;
1620
1621         plane_resp->plane_id = plane->base.id;
1622         plane_resp->possible_crtcs = plane->possible_crtcs;
1623         plane_resp->gamma_size = plane->gamma_size;
1624
1625         /*
1626          * This ioctl is called twice, once to determine how much space is
1627          * needed, and the 2nd time to fill it.
1628          */
1629         if (plane->format_count &&
1630             (plane_resp->count_format_types >= plane->format_count)) {
1631                 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1632                 if (copy_to_user(format_ptr,
1633                                  plane->format_types,
1634                                  sizeof(uint32_t) * plane->format_count)) {
1635                         ret = -EFAULT;
1636                         goto out;
1637                 }
1638         }
1639         plane_resp->count_format_types = plane->format_count;
1640
1641 out:
1642         mutex_unlock(&dev->mode_config.mutex);
1643         return ret;
1644 }
1645
1646 /**
1647  * drm_mode_setplane - set up or tear down an plane
1648  * @dev: DRM device
1649  * @data: ioctl data*
1650  * @file_prive: DRM file info
1651  *
1652  * Set plane info, including placement, fb, scaling, and other factors.
1653  * Or pass a NULL fb to disable.
1654  */
1655 int drm_mode_setplane(struct drm_device *dev, void *data,
1656                         struct drm_file *file_priv)
1657 {
1658         struct drm_mode_set_plane *plane_req = data;
1659         struct drm_mode_object *obj;
1660         struct drm_plane *plane;
1661         struct drm_crtc *crtc;
1662         struct drm_framebuffer *fb;
1663         int ret = 0;
1664         unsigned int fb_width, fb_height;
1665         int i;
1666
1667         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1668                 return -EINVAL;
1669
1670         mutex_lock(&dev->mode_config.mutex);
1671
1672         /*
1673          * First, find the plane, crtc, and fb objects.  If not available,
1674          * we don't bother to call the driver.
1675          */
1676         obj = drm_mode_object_find(dev, plane_req->plane_id,
1677                                    DRM_MODE_OBJECT_PLANE);
1678         if (!obj) {
1679                 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1680                               plane_req->plane_id);
1681                 ret = -ENOENT;
1682                 goto out;
1683         }
1684         plane = obj_to_plane(obj);
1685
1686         /* No fb means shut it down */
1687         if (!plane_req->fb_id) {
1688                 plane->funcs->disable_plane(plane);
1689                 plane->crtc = NULL;
1690                 plane->fb = NULL;
1691                 goto out;
1692         }
1693
1694         obj = drm_mode_object_find(dev, plane_req->crtc_id,
1695                                    DRM_MODE_OBJECT_CRTC);
1696         if (!obj) {
1697                 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1698                               plane_req->crtc_id);
1699                 ret = -ENOENT;
1700                 goto out;
1701         }
1702         crtc = obj_to_crtc(obj);
1703
1704         obj = drm_mode_object_find(dev, plane_req->fb_id,
1705                                    DRM_MODE_OBJECT_FB);
1706         if (!obj) {
1707                 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1708                               plane_req->fb_id);
1709                 ret = -ENOENT;
1710                 goto out;
1711         }
1712         fb = obj_to_fb(obj);
1713
1714         /* Check whether this plane supports the fb pixel format. */
1715         for (i = 0; i < plane->format_count; i++)
1716                 if (fb->pixel_format == plane->format_types[i])
1717                         break;
1718         if (i == plane->format_count) {
1719                 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1720                 ret = -EINVAL;
1721                 goto out;
1722         }
1723
1724         fb_width = fb->width << 16;
1725         fb_height = fb->height << 16;
1726
1727         /* Make sure source coordinates are inside the fb. */
1728         if (plane_req->src_w > fb_width ||
1729             plane_req->src_x > fb_width - plane_req->src_w ||
1730             plane_req->src_h > fb_height ||
1731             plane_req->src_y > fb_height - plane_req->src_h) {
1732                 DRM_DEBUG_KMS("Invalid source coordinates "
1733                               "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1734                               plane_req->src_w >> 16,
1735                               ((plane_req->src_w & 0xffff) * 15625) >> 10,
1736                               plane_req->src_h >> 16,
1737                               ((plane_req->src_h & 0xffff) * 15625) >> 10,
1738                               plane_req->src_x >> 16,
1739                               ((plane_req->src_x & 0xffff) * 15625) >> 10,
1740                               plane_req->src_y >> 16,
1741                               ((plane_req->src_y & 0xffff) * 15625) >> 10);
1742                 ret = -ENOSPC;
1743                 goto out;
1744         }
1745
1746         /* Give drivers some help against integer overflows */
1747         if (plane_req->crtc_w > INT_MAX ||
1748             plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1749             plane_req->crtc_h > INT_MAX ||
1750             plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1751                 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1752                               plane_req->crtc_w, plane_req->crtc_h,
1753                               plane_req->crtc_x, plane_req->crtc_y);
1754                 ret = -ERANGE;
1755                 goto out;
1756         }
1757
1758         ret = plane->funcs->update_plane(plane, crtc, fb,
1759                                          plane_req->crtc_x, plane_req->crtc_y,
1760                                          plane_req->crtc_w, plane_req->crtc_h,
1761                                          plane_req->src_x, plane_req->src_y,
1762                                          plane_req->src_w, plane_req->src_h);
1763         if (!ret) {
1764                 plane->crtc = crtc;
1765                 plane->fb = fb;
1766         }
1767
1768 out:
1769         mutex_unlock(&dev->mode_config.mutex);
1770
1771         return ret;
1772 }
1773
1774 /**
1775  * drm_mode_setcrtc - set CRTC configuration
1776  * @inode: inode from the ioctl
1777  * @filp: file * from the ioctl
1778  * @cmd: cmd from ioctl
1779  * @arg: arg from ioctl
1780  *
1781  * LOCKING:
1782  * Caller? (FIXME)
1783  *
1784  * Build a new CRTC configuration based on user request.
1785  *
1786  * Called by the user via ioctl.
1787  *
1788  * RETURNS:
1789  * Zero on success, errno on failure.
1790  */
1791 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1792                      struct drm_file *file_priv)
1793 {
1794         struct drm_mode_config *config = &dev->mode_config;
1795         struct drm_mode_crtc *crtc_req = data;
1796         struct drm_mode_object *obj;
1797         struct drm_crtc *crtc, *crtcfb;
1798         struct drm_connector **connector_set = NULL, *connector;
1799         struct drm_framebuffer *fb = NULL;
1800         struct drm_display_mode *mode = NULL;
1801         struct drm_mode_set set;
1802         uint32_t __user *set_connectors_ptr;
1803         int ret = 0;
1804         int i;
1805
1806         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1807                 return -EINVAL;
1808
1809         mutex_lock(&dev->mode_config.mutex);
1810         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1811                                    DRM_MODE_OBJECT_CRTC);
1812         if (!obj) {
1813                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1814                 ret = -EINVAL;
1815                 goto out;
1816         }
1817         crtc = obj_to_crtc(obj);
1818         DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1819
1820         if (crtc_req->mode_valid) {
1821                 /* If we have a mode we need a framebuffer. */
1822                 /* If we pass -1, set the mode with the currently bound fb */
1823                 if (crtc_req->fb_id == -1) {
1824                         list_for_each_entry(crtcfb,
1825                                             &dev->mode_config.crtc_list, head) {
1826                                 if (crtcfb == crtc) {
1827                                         DRM_DEBUG_KMS("Using current fb for "
1828                                                         "setmode\n");
1829                                         fb = crtc->fb;
1830                                 }
1831                         }
1832                 } else {
1833                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1834                                                    DRM_MODE_OBJECT_FB);
1835                         if (!obj) {
1836                                 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1837                                                 crtc_req->fb_id);
1838                                 ret = -EINVAL;
1839                                 goto out;
1840                         }
1841                         fb = obj_to_fb(obj);
1842                 }
1843
1844                 mode = drm_mode_create(dev);
1845                 drm_crtc_convert_umode(mode, &crtc_req->mode);
1846                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1847         }
1848
1849         if (crtc_req->count_connectors == 0 && mode) {
1850                 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1851                 ret = -EINVAL;
1852                 goto out;
1853         }
1854
1855         if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1856                 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1857                           crtc_req->count_connectors);
1858                 ret = -EINVAL;
1859                 goto out;
1860         }
1861
1862         if (crtc_req->count_connectors > 0) {
1863                 u32 out_id;
1864
1865                 /* Avoid unbounded kernel memory allocation */
1866                 if (crtc_req->count_connectors > config->num_connector) {
1867                         ret = -EINVAL;
1868                         goto out;
1869                 }
1870
1871                 connector_set = kmalloc(crtc_req->count_connectors *
1872                                         sizeof(struct drm_connector *),
1873                                         GFP_KERNEL);
1874                 if (!connector_set) {
1875                         ret = -ENOMEM;
1876                         goto out;
1877                 }
1878
1879                 for (i = 0; i < crtc_req->count_connectors; i++) {
1880                         set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
1881                         if (get_user(out_id, &set_connectors_ptr[i])) {
1882                                 ret = -EFAULT;
1883                                 goto out;
1884                         }
1885
1886                         obj = drm_mode_object_find(dev, out_id,
1887                                                    DRM_MODE_OBJECT_CONNECTOR);
1888                         if (!obj) {
1889                                 DRM_DEBUG_KMS("Connector id %d unknown\n",
1890                                                 out_id);
1891                                 ret = -EINVAL;
1892                                 goto out;
1893                         }
1894                         connector = obj_to_connector(obj);
1895                         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1896                                         connector->base.id,
1897                                         drm_get_connector_name(connector));
1898
1899                         connector_set[i] = connector;
1900                 }
1901         }
1902
1903         set.crtc = crtc;
1904         set.x = crtc_req->x;
1905         set.y = crtc_req->y;
1906         set.mode = mode;
1907         set.connectors = connector_set;
1908         set.num_connectors = crtc_req->count_connectors;
1909         set.fb = fb;
1910         ret = crtc->funcs->set_config(&set);
1911
1912 out:
1913         kfree(connector_set);
1914         mutex_unlock(&dev->mode_config.mutex);
1915         return ret;
1916 }
1917
1918 int drm_mode_cursor_ioctl(struct drm_device *dev,
1919                         void *data, struct drm_file *file_priv)
1920 {
1921         struct drm_mode_cursor *req = data;
1922         struct drm_mode_object *obj;
1923         struct drm_crtc *crtc;
1924         int ret = 0;
1925
1926         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1927                 return -EINVAL;
1928
1929         if (!req->flags)
1930                 return -EINVAL;
1931
1932         mutex_lock(&dev->mode_config.mutex);
1933         obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1934         if (!obj) {
1935                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1936                 ret = -EINVAL;
1937                 goto out;
1938         }
1939         crtc = obj_to_crtc(obj);
1940
1941         if (req->flags & DRM_MODE_CURSOR_BO) {
1942                 if (!crtc->funcs->cursor_set) {
1943                         ret = -ENXIO;
1944                         goto out;
1945                 }
1946                 /* Turns off the cursor if handle is 0 */
1947                 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1948                                               req->width, req->height);
1949         }
1950
1951         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1952                 if (crtc->funcs->cursor_move) {
1953                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1954                 } else {
1955                         ret = -EFAULT;
1956                         goto out;
1957                 }
1958         }
1959 out:
1960         mutex_unlock(&dev->mode_config.mutex);
1961         return ret;
1962 }
1963
1964 /* Original addfb only supported RGB formats, so figure out which one */
1965 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1966 {
1967         uint32_t fmt;
1968
1969         switch (bpp) {
1970         case 8:
1971                 fmt = DRM_FORMAT_RGB332;
1972                 break;
1973         case 16:
1974                 if (depth == 15)
1975                         fmt = DRM_FORMAT_XRGB1555;
1976                 else
1977                         fmt = DRM_FORMAT_RGB565;
1978                 break;
1979         case 24:
1980                 fmt = DRM_FORMAT_RGB888;
1981                 break;
1982         case 32:
1983                 if (depth == 24)
1984                         fmt = DRM_FORMAT_XRGB8888;
1985                 else if (depth == 30)
1986                         fmt = DRM_FORMAT_XRGB2101010;
1987                 else
1988                         fmt = DRM_FORMAT_ARGB8888;
1989                 break;
1990         default:
1991                 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
1992                 fmt = DRM_FORMAT_XRGB8888;
1993                 break;
1994         }
1995
1996         return fmt;
1997 }
1998 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
1999
2000 /**
2001  * drm_mode_addfb - add an FB to the graphics configuration
2002  * @inode: inode from the ioctl
2003  * @filp: file * from the ioctl
2004  * @cmd: cmd from ioctl
2005  * @arg: arg from ioctl
2006  *
2007  * LOCKING:
2008  * Takes mode config lock.
2009  *
2010  * Add a new FB to the specified CRTC, given a user request.
2011  *
2012  * Called by the user via ioctl.
2013  *
2014  * RETURNS:
2015  * Zero on success, errno on failure.
2016  */
2017 int drm_mode_addfb(struct drm_device *dev,
2018                    void *data, struct drm_file *file_priv)
2019 {
2020         struct drm_mode_fb_cmd *or = data;
2021         struct drm_mode_fb_cmd2 r = {};
2022         struct drm_mode_config *config = &dev->mode_config;
2023         struct drm_framebuffer *fb;
2024         int ret = 0;
2025
2026         /* Use new struct with format internally */
2027         r.fb_id = or->fb_id;
2028         r.width = or->width;
2029         r.height = or->height;
2030         r.pitches[0] = or->pitch;
2031         r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2032         r.handles[0] = or->handle;
2033
2034         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2035                 return -EINVAL;
2036
2037         if ((config->min_width > r.width) || (r.width > config->max_width))
2038                 return -EINVAL;
2039
2040         if ((config->min_height > r.height) || (r.height > config->max_height))
2041                 return -EINVAL;
2042
2043         mutex_lock(&dev->mode_config.mutex);
2044
2045         /* TODO check buffer is sufficiently large */
2046         /* TODO setup destructor callback */
2047
2048         fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2049         if (IS_ERR(fb)) {
2050                 DRM_ERROR("could not create framebuffer\n");
2051                 ret = PTR_ERR(fb);
2052                 goto out;
2053         }
2054
2055         or->fb_id = fb->base.id;
2056         list_add(&fb->filp_head, &file_priv->fbs);
2057         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2058
2059 out:
2060         mutex_unlock(&dev->mode_config.mutex);
2061         return ret;
2062 }
2063
2064 static int format_check(struct drm_mode_fb_cmd2 *r)
2065 {
2066         uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2067
2068         switch (format) {
2069         case DRM_FORMAT_C8:
2070         case DRM_FORMAT_RGB332:
2071         case DRM_FORMAT_BGR233:
2072         case DRM_FORMAT_XRGB4444:
2073         case DRM_FORMAT_XBGR4444:
2074         case DRM_FORMAT_RGBX4444:
2075         case DRM_FORMAT_BGRX4444:
2076         case DRM_FORMAT_ARGB4444:
2077         case DRM_FORMAT_ABGR4444:
2078         case DRM_FORMAT_RGBA4444:
2079         case DRM_FORMAT_BGRA4444:
2080         case DRM_FORMAT_XRGB1555:
2081         case DRM_FORMAT_XBGR1555:
2082         case DRM_FORMAT_RGBX5551:
2083         case DRM_FORMAT_BGRX5551:
2084         case DRM_FORMAT_ARGB1555:
2085         case DRM_FORMAT_ABGR1555:
2086         case DRM_FORMAT_RGBA5551:
2087         case DRM_FORMAT_BGRA5551:
2088         case DRM_FORMAT_RGB565:
2089         case DRM_FORMAT_BGR565:
2090         case DRM_FORMAT_RGB888:
2091         case DRM_FORMAT_BGR888:
2092         case DRM_FORMAT_XRGB8888:
2093         case DRM_FORMAT_XBGR8888:
2094         case DRM_FORMAT_RGBX8888:
2095         case DRM_FORMAT_BGRX8888:
2096         case DRM_FORMAT_ARGB8888:
2097         case DRM_FORMAT_ABGR8888:
2098         case DRM_FORMAT_RGBA8888:
2099         case DRM_FORMAT_BGRA8888:
2100         case DRM_FORMAT_XRGB2101010:
2101         case DRM_FORMAT_XBGR2101010:
2102         case DRM_FORMAT_RGBX1010102:
2103         case DRM_FORMAT_BGRX1010102:
2104         case DRM_FORMAT_ARGB2101010:
2105         case DRM_FORMAT_ABGR2101010:
2106         case DRM_FORMAT_RGBA1010102:
2107         case DRM_FORMAT_BGRA1010102:
2108         case DRM_FORMAT_YUYV:
2109         case DRM_FORMAT_YVYU:
2110         case DRM_FORMAT_UYVY:
2111         case DRM_FORMAT_VYUY:
2112         case DRM_FORMAT_AYUV:
2113         case DRM_FORMAT_NV12:
2114         case DRM_FORMAT_NV21:
2115         case DRM_FORMAT_NV16:
2116         case DRM_FORMAT_NV61:
2117         case DRM_FORMAT_YUV410:
2118         case DRM_FORMAT_YVU410:
2119         case DRM_FORMAT_YUV411:
2120         case DRM_FORMAT_YVU411:
2121         case DRM_FORMAT_YUV420:
2122         case DRM_FORMAT_YVU420:
2123         case DRM_FORMAT_YUV422:
2124         case DRM_FORMAT_YVU422:
2125         case DRM_FORMAT_YUV444:
2126         case DRM_FORMAT_YVU444:
2127                 return 0;
2128         default:
2129                 return -EINVAL;
2130         }
2131 }
2132
2133 /**
2134  * drm_mode_addfb2 - add an FB to the graphics configuration
2135  * @inode: inode from the ioctl
2136  * @filp: file * from the ioctl
2137  * @cmd: cmd from ioctl
2138  * @arg: arg from ioctl
2139  *
2140  * LOCKING:
2141  * Takes mode config lock.
2142  *
2143  * Add a new FB to the specified CRTC, given a user request with format.
2144  *
2145  * Called by the user via ioctl.
2146  *
2147  * RETURNS:
2148  * Zero on success, errno on failure.
2149  */
2150 int drm_mode_addfb2(struct drm_device *dev,
2151                     void *data, struct drm_file *file_priv)
2152 {
2153         struct drm_mode_fb_cmd2 *r = data;
2154         struct drm_mode_config *config = &dev->mode_config;
2155         struct drm_framebuffer *fb;
2156         int ret = 0;
2157
2158         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2159                 return -EINVAL;
2160
2161         if ((config->min_width > r->width) || (r->width > config->max_width)) {
2162                 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2163                           r->width, config->min_width, config->max_width);
2164                 return -EINVAL;
2165         }
2166         if ((config->min_height > r->height) || (r->height > config->max_height)) {
2167                 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2168                           r->height, config->min_height, config->max_height);
2169                 return -EINVAL;
2170         }
2171
2172         ret = format_check(r);
2173         if (ret) {
2174                 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2175                 return ret;
2176         }
2177
2178         mutex_lock(&dev->mode_config.mutex);
2179
2180         fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2181         if (IS_ERR(fb)) {
2182                 DRM_ERROR("could not create framebuffer\n");
2183                 ret = PTR_ERR(fb);
2184                 goto out;
2185         }
2186
2187         r->fb_id = fb->base.id;
2188         list_add(&fb->filp_head, &file_priv->fbs);
2189         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2190
2191 out:
2192         mutex_unlock(&dev->mode_config.mutex);
2193         return ret;
2194 }
2195
2196 /**
2197  * drm_mode_rmfb - remove an FB from the configuration
2198  * @inode: inode from the ioctl
2199  * @filp: file * from the ioctl
2200  * @cmd: cmd from ioctl
2201  * @arg: arg from ioctl
2202  *
2203  * LOCKING:
2204  * Takes mode config lock.
2205  *
2206  * Remove the FB specified by the user.
2207  *
2208  * Called by the user via ioctl.
2209  *
2210  * RETURNS:
2211  * Zero on success, errno on failure.
2212  */
2213 int drm_mode_rmfb(struct drm_device *dev,
2214                    void *data, struct drm_file *file_priv)
2215 {
2216         struct drm_mode_object *obj;
2217         struct drm_framebuffer *fb = NULL;
2218         struct drm_framebuffer *fbl = NULL;
2219         uint32_t *id = data;
2220         int ret = 0;
2221         int found = 0;
2222
2223         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2224                 return -EINVAL;
2225
2226         mutex_lock(&dev->mode_config.mutex);
2227         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
2228         /* TODO check that we really get a framebuffer back. */
2229         if (!obj) {
2230                 ret = -EINVAL;
2231                 goto out;
2232         }
2233         fb = obj_to_fb(obj);
2234
2235         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2236                 if (fb == fbl)
2237                         found = 1;
2238
2239         if (!found) {
2240                 ret = -EINVAL;
2241                 goto out;
2242         }
2243
2244         /* TODO release all crtc connected to the framebuffer */
2245         /* TODO unhock the destructor from the buffer object */
2246
2247         list_del(&fb->filp_head);
2248         fb->funcs->destroy(fb);
2249
2250 out:
2251         mutex_unlock(&dev->mode_config.mutex);
2252         return ret;
2253 }
2254
2255 /**
2256  * drm_mode_getfb - get FB info
2257  * @inode: inode from the ioctl
2258  * @filp: file * from the ioctl
2259  * @cmd: cmd from ioctl
2260  * @arg: arg from ioctl
2261  *
2262  * LOCKING:
2263  * Caller? (FIXME)
2264  *
2265  * Lookup the FB given its ID and return info about it.
2266  *
2267  * Called by the user via ioctl.
2268  *
2269  * RETURNS:
2270  * Zero on success, errno on failure.
2271  */
2272 int drm_mode_getfb(struct drm_device *dev,
2273                    void *data, struct drm_file *file_priv)
2274 {
2275         struct drm_mode_fb_cmd *r = data;
2276         struct drm_mode_object *obj;
2277         struct drm_framebuffer *fb;
2278         int ret = 0;
2279
2280         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2281                 return -EINVAL;
2282
2283         mutex_lock(&dev->mode_config.mutex);
2284         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2285         if (!obj) {
2286                 ret = -EINVAL;
2287                 goto out;
2288         }
2289         fb = obj_to_fb(obj);
2290
2291         r->height = fb->height;
2292         r->width = fb->width;
2293         r->depth = fb->depth;
2294         r->bpp = fb->bits_per_pixel;
2295         r->pitch = fb->pitches[0];
2296         fb->funcs->create_handle(fb, file_priv, &r->handle);
2297
2298 out:
2299         mutex_unlock(&dev->mode_config.mutex);
2300         return ret;
2301 }
2302
2303 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2304                            void *data, struct drm_file *file_priv)
2305 {
2306         struct drm_clip_rect __user *clips_ptr;
2307         struct drm_clip_rect *clips = NULL;
2308         struct drm_mode_fb_dirty_cmd *r = data;
2309         struct drm_mode_object *obj;
2310         struct drm_framebuffer *fb;
2311         unsigned flags;
2312         int num_clips;
2313         int ret = 0;
2314
2315         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2316                 return -EINVAL;
2317
2318         mutex_lock(&dev->mode_config.mutex);
2319         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2320         if (!obj) {
2321                 ret = -EINVAL;
2322                 goto out_err1;
2323         }
2324         fb = obj_to_fb(obj);
2325
2326         num_clips = r->num_clips;
2327         clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2328
2329         if (!num_clips != !clips_ptr) {
2330                 ret = -EINVAL;
2331                 goto out_err1;
2332         }
2333
2334         flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2335
2336         /* If userspace annotates copy, clips must come in pairs */
2337         if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2338                 ret = -EINVAL;
2339                 goto out_err1;
2340         }
2341
2342         if (num_clips && clips_ptr) {
2343                 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2344                         ret = -EINVAL;
2345                         goto out_err1;
2346                 }
2347                 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2348                 if (!clips) {
2349                         ret = -ENOMEM;
2350                         goto out_err1;
2351                 }
2352
2353                 ret = copy_from_user(clips, clips_ptr,
2354                                      num_clips * sizeof(*clips));
2355                 if (ret) {
2356                         ret = -EFAULT;
2357                         goto out_err2;
2358                 }
2359         }
2360
2361         if (fb->funcs->dirty) {
2362                 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2363                                        clips, num_clips);
2364         } else {
2365                 ret = -ENOSYS;
2366                 goto out_err2;
2367         }
2368
2369 out_err2:
2370         kfree(clips);
2371 out_err1:
2372         mutex_unlock(&dev->mode_config.mutex);
2373         return ret;
2374 }
2375
2376
2377 /**
2378  * drm_fb_release - remove and free the FBs on this file
2379  * @filp: file * from the ioctl
2380  *
2381  * LOCKING:
2382  * Takes mode config lock.
2383  *
2384  * Destroy all the FBs associated with @filp.
2385  *
2386  * Called by the user via ioctl.
2387  *
2388  * RETURNS:
2389  * Zero on success, errno on failure.
2390  */
2391 void drm_fb_release(struct drm_file *priv)
2392 {
2393         struct drm_device *dev = priv->minor->dev;
2394         struct drm_framebuffer *fb, *tfb;
2395
2396         mutex_lock(&dev->mode_config.mutex);
2397         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2398                 list_del(&fb->filp_head);
2399                 fb->funcs->destroy(fb);
2400         }
2401         mutex_unlock(&dev->mode_config.mutex);
2402 }
2403
2404 /**
2405  * drm_mode_attachmode - add a mode to the user mode list
2406  * @dev: DRM device
2407  * @connector: connector to add the mode to
2408  * @mode: mode to add
2409  *
2410  * Add @mode to @connector's user mode list.
2411  */
2412 static int drm_mode_attachmode(struct drm_device *dev,
2413                                struct drm_connector *connector,
2414                                struct drm_display_mode *mode)
2415 {
2416         int ret = 0;
2417
2418         list_add_tail(&mode->head, &connector->user_modes);
2419         return ret;
2420 }
2421
2422 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2423                              struct drm_display_mode *mode)
2424 {
2425         struct drm_connector *connector;
2426         int ret = 0;
2427         struct drm_display_mode *dup_mode;
2428         int need_dup = 0;
2429         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2430                 if (!connector->encoder)
2431                         break;
2432                 if (connector->encoder->crtc == crtc) {
2433                         if (need_dup)
2434                                 dup_mode = drm_mode_duplicate(dev, mode);
2435                         else
2436                                 dup_mode = mode;
2437                         ret = drm_mode_attachmode(dev, connector, dup_mode);
2438                         if (ret)
2439                                 return ret;
2440                         need_dup = 1;
2441                 }
2442         }
2443         return 0;
2444 }
2445 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2446
2447 static int drm_mode_detachmode(struct drm_device *dev,
2448                                struct drm_connector *connector,
2449                                struct drm_display_mode *mode)
2450 {
2451         int found = 0;
2452         int ret = 0;
2453         struct drm_display_mode *match_mode, *t;
2454
2455         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2456                 if (drm_mode_equal(match_mode, mode)) {
2457                         list_del(&match_mode->head);
2458                         drm_mode_destroy(dev, match_mode);
2459                         found = 1;
2460                         break;
2461                 }
2462         }
2463
2464         if (!found)
2465                 ret = -EINVAL;
2466
2467         return ret;
2468 }
2469
2470 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2471 {
2472         struct drm_connector *connector;
2473
2474         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2475                 drm_mode_detachmode(dev, connector, mode);
2476         }
2477         return 0;
2478 }
2479 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2480
2481 /**
2482  * drm_fb_attachmode - Attach a user mode to an connector
2483  * @inode: inode from the ioctl
2484  * @filp: file * from the ioctl
2485  * @cmd: cmd from ioctl
2486  * @arg: arg from ioctl
2487  *
2488  * This attaches a user specified mode to an connector.
2489  * Called by the user via ioctl.
2490  *
2491  * RETURNS:
2492  * Zero on success, errno on failure.
2493  */
2494 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2495                               void *data, struct drm_file *file_priv)
2496 {
2497         struct drm_mode_mode_cmd *mode_cmd = data;
2498         struct drm_connector *connector;
2499         struct drm_display_mode *mode;
2500         struct drm_mode_object *obj;
2501         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2502         int ret = 0;
2503
2504         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2505                 return -EINVAL;
2506
2507         mutex_lock(&dev->mode_config.mutex);
2508
2509         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2510         if (!obj) {
2511                 ret = -EINVAL;
2512                 goto out;
2513         }
2514         connector = obj_to_connector(obj);
2515
2516         mode = drm_mode_create(dev);
2517         if (!mode) {
2518                 ret = -ENOMEM;
2519                 goto out;
2520         }
2521
2522         drm_crtc_convert_umode(mode, umode);
2523
2524         ret = drm_mode_attachmode(dev, connector, mode);
2525 out:
2526         mutex_unlock(&dev->mode_config.mutex);
2527         return ret;
2528 }
2529
2530
2531 /**
2532  * drm_fb_detachmode - Detach a user specified mode from an connector
2533  * @inode: inode from the ioctl
2534  * @filp: file * from the ioctl
2535  * @cmd: cmd from ioctl
2536  * @arg: arg from ioctl
2537  *
2538  * Called by the user via ioctl.
2539  *
2540  * RETURNS:
2541  * Zero on success, errno on failure.
2542  */
2543 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2544                               void *data, struct drm_file *file_priv)
2545 {
2546         struct drm_mode_object *obj;
2547         struct drm_mode_mode_cmd *mode_cmd = data;
2548         struct drm_connector *connector;
2549         struct drm_display_mode mode;
2550         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2551         int ret = 0;
2552
2553         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2554                 return -EINVAL;
2555
2556         mutex_lock(&dev->mode_config.mutex);
2557
2558         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2559         if (!obj) {
2560                 ret = -EINVAL;
2561                 goto out;
2562         }
2563         connector = obj_to_connector(obj);
2564
2565         drm_crtc_convert_umode(&mode, umode);
2566         ret = drm_mode_detachmode(dev, connector, &mode);
2567 out:
2568         mutex_unlock(&dev->mode_config.mutex);
2569         return ret;
2570 }
2571
2572 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2573                                          const char *name, int num_values)
2574 {
2575         struct drm_property *property = NULL;
2576
2577         property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2578         if (!property)
2579                 return NULL;
2580
2581         if (num_values) {
2582                 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2583                 if (!property->values)
2584                         goto fail;
2585         }
2586
2587         drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2588         property->flags = flags;
2589         property->num_values = num_values;
2590         INIT_LIST_HEAD(&property->enum_blob_list);
2591
2592         if (name) {
2593                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2594                 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2595         }
2596
2597         list_add_tail(&property->head, &dev->mode_config.property_list);
2598         return property;
2599 fail:
2600         kfree(property);
2601         return NULL;
2602 }
2603 EXPORT_SYMBOL(drm_property_create);
2604
2605 int drm_property_add_enum(struct drm_property *property, int index,
2606                           uint64_t value, const char *name)
2607 {
2608         struct drm_property_enum *prop_enum;
2609
2610         if (!(property->flags & DRM_MODE_PROP_ENUM))
2611                 return -EINVAL;
2612
2613         if (!list_empty(&property->enum_blob_list)) {
2614                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2615                         if (prop_enum->value == value) {
2616                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2617                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2618                                 return 0;
2619                         }
2620                 }
2621         }
2622
2623         prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2624         if (!prop_enum)
2625                 return -ENOMEM;
2626
2627         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2628         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2629         prop_enum->value = value;
2630
2631         property->values[index] = value;
2632         list_add_tail(&prop_enum->head, &property->enum_blob_list);
2633         return 0;
2634 }
2635 EXPORT_SYMBOL(drm_property_add_enum);
2636
2637 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2638 {
2639         struct drm_property_enum *prop_enum, *pt;
2640
2641         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2642                 list_del(&prop_enum->head);
2643                 kfree(prop_enum);
2644         }
2645
2646         if (property->num_values)
2647                 kfree(property->values);
2648         drm_mode_object_put(dev, &property->base);
2649         list_del(&property->head);
2650         kfree(property);
2651 }
2652 EXPORT_SYMBOL(drm_property_destroy);
2653
2654 int drm_connector_attach_property(struct drm_connector *connector,
2655                                struct drm_property *property, uint64_t init_val)
2656 {
2657         int i;
2658
2659         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2660                 if (connector->property_ids[i] == 0) {
2661                         connector->property_ids[i] = property->base.id;
2662                         connector->property_values[i] = init_val;
2663                         break;
2664                 }
2665         }
2666
2667         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2668                 return -EINVAL;
2669         return 0;
2670 }
2671 EXPORT_SYMBOL(drm_connector_attach_property);
2672
2673 int drm_connector_property_set_value(struct drm_connector *connector,
2674                                   struct drm_property *property, uint64_t value)
2675 {
2676         int i;
2677
2678         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2679                 if (connector->property_ids[i] == property->base.id) {
2680                         connector->property_values[i] = value;
2681                         break;
2682                 }
2683         }
2684
2685         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2686                 return -EINVAL;
2687         return 0;
2688 }
2689 EXPORT_SYMBOL(drm_connector_property_set_value);
2690
2691 int drm_connector_property_get_value(struct drm_connector *connector,
2692                                   struct drm_property *property, uint64_t *val)
2693 {
2694         int i;
2695
2696         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2697                 if (connector->property_ids[i] == property->base.id) {
2698                         *val = connector->property_values[i];
2699                         break;
2700                 }
2701         }
2702
2703         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2704                 return -EINVAL;
2705         return 0;
2706 }
2707 EXPORT_SYMBOL(drm_connector_property_get_value);
2708
2709 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2710                                void *data, struct drm_file *file_priv)
2711 {
2712         struct drm_mode_object *obj;
2713         struct drm_mode_get_property *out_resp = data;
2714         struct drm_property *property;
2715         int enum_count = 0;
2716         int blob_count = 0;
2717         int value_count = 0;
2718         int ret = 0, i;
2719         int copied;
2720         struct drm_property_enum *prop_enum;
2721         struct drm_mode_property_enum __user *enum_ptr;
2722         struct drm_property_blob *prop_blob;
2723         uint32_t __user *blob_id_ptr;
2724         uint64_t __user *values_ptr;
2725         uint32_t __user *blob_length_ptr;
2726
2727         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2728                 return -EINVAL;
2729
2730         mutex_lock(&dev->mode_config.mutex);
2731         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2732         if (!obj) {
2733                 ret = -EINVAL;
2734                 goto done;
2735         }
2736         property = obj_to_property(obj);
2737
2738         if (property->flags & DRM_MODE_PROP_ENUM) {
2739                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2740                         enum_count++;
2741         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2742                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2743                         blob_count++;
2744         }
2745
2746         value_count = property->num_values;
2747
2748         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2749         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2750         out_resp->flags = property->flags;
2751
2752         if ((out_resp->count_values >= value_count) && value_count) {
2753                 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2754                 for (i = 0; i < value_count; i++) {
2755                         if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2756                                 ret = -EFAULT;
2757                                 goto done;
2758                         }
2759                 }
2760         }
2761         out_resp->count_values = value_count;
2762
2763         if (property->flags & DRM_MODE_PROP_ENUM) {
2764                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2765                         copied = 0;
2766                         enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2767                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2768
2769                                 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2770                                         ret = -EFAULT;
2771                                         goto done;
2772                                 }
2773
2774                                 if (copy_to_user(&enum_ptr[copied].name,
2775                                                  &prop_enum->name, DRM_PROP_NAME_LEN)) {
2776                                         ret = -EFAULT;
2777                                         goto done;
2778                                 }
2779                                 copied++;
2780                         }
2781                 }
2782                 out_resp->count_enum_blobs = enum_count;
2783         }
2784
2785         if (property->flags & DRM_MODE_PROP_BLOB) {
2786                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2787                         copied = 0;
2788                         blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2789                         blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
2790
2791                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2792                                 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2793                                         ret = -EFAULT;
2794                                         goto done;
2795                                 }
2796
2797                                 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2798                                         ret = -EFAULT;
2799                                         goto done;
2800                                 }
2801
2802                                 copied++;
2803                         }
2804                 }
2805                 out_resp->count_enum_blobs = blob_count;
2806         }
2807 done:
2808         mutex_unlock(&dev->mode_config.mutex);
2809         return ret;
2810 }
2811
2812 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2813                                                           void *data)
2814 {
2815         struct drm_property_blob *blob;
2816
2817         if (!length || !data)
2818                 return NULL;
2819
2820         blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2821         if (!blob)
2822                 return NULL;
2823
2824         blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2825         blob->length = length;
2826
2827         memcpy(blob->data, data, length);
2828
2829         drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2830
2831         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2832         return blob;
2833 }
2834
2835 static void drm_property_destroy_blob(struct drm_device *dev,
2836                                struct drm_property_blob *blob)
2837 {
2838         drm_mode_object_put(dev, &blob->base);
2839         list_del(&blob->head);
2840         kfree(blob);
2841 }
2842
2843 int drm_mode_getblob_ioctl(struct drm_device *dev,
2844                            void *data, struct drm_file *file_priv)
2845 {
2846         struct drm_mode_object *obj;
2847         struct drm_mode_get_blob *out_resp = data;
2848         struct drm_property_blob *blob;
2849         int ret = 0;
2850         void __user *blob_ptr;
2851
2852         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2853                 return -EINVAL;
2854
2855         mutex_lock(&dev->mode_config.mutex);
2856         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2857         if (!obj) {
2858                 ret = -EINVAL;
2859                 goto done;
2860         }
2861         blob = obj_to_blob(obj);
2862
2863         if (out_resp->length == blob->length) {
2864                 blob_ptr = (void __user *)(unsigned long)out_resp->data;
2865                 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2866                         ret = -EFAULT;
2867                         goto done;
2868                 }
2869         }
2870         out_resp->length = blob->length;
2871
2872 done:
2873         mutex_unlock(&dev->mode_config.mutex);
2874         return ret;
2875 }
2876
2877 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2878                                             struct edid *edid)
2879 {
2880         struct drm_device *dev = connector->dev;
2881         int ret = 0, size;
2882
2883         if (connector->edid_blob_ptr)
2884                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2885
2886         /* Delete edid, when there is none. */
2887         if (!edid) {
2888                 connector->edid_blob_ptr = NULL;
2889                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2890                 return ret;
2891         }
2892
2893         size = EDID_LENGTH * (1 + edid->extensions);
2894         connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2895                                                             size, edid);
2896
2897         ret = drm_connector_property_set_value(connector,
2898                                                dev->mode_config.edid_property,
2899                                                connector->edid_blob_ptr->base.id);
2900
2901         return ret;
2902 }
2903 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2904
2905 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2906                                        void *data, struct drm_file *file_priv)
2907 {
2908         struct drm_mode_connector_set_property *out_resp = data;
2909         struct drm_mode_object *obj;
2910         struct drm_property *property;
2911         struct drm_connector *connector;
2912         int ret = -EINVAL;
2913         int i;
2914
2915         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2916                 return -EINVAL;
2917
2918         mutex_lock(&dev->mode_config.mutex);
2919
2920         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2921         if (!obj) {
2922                 goto out;
2923         }
2924         connector = obj_to_connector(obj);
2925
2926         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2927                 if (connector->property_ids[i] == out_resp->prop_id)
2928                         break;
2929         }
2930
2931         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2932                 goto out;
2933         }
2934
2935         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2936         if (!obj) {
2937                 goto out;
2938         }
2939         property = obj_to_property(obj);
2940
2941         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2942                 goto out;
2943
2944         if (property->flags & DRM_MODE_PROP_RANGE) {
2945                 if (out_resp->value < property->values[0])
2946                         goto out;
2947
2948                 if (out_resp->value > property->values[1])
2949                         goto out;
2950         } else {
2951                 int found = 0;
2952                 for (i = 0; i < property->num_values; i++) {
2953                         if (property->values[i] == out_resp->value) {
2954                                 found = 1;
2955                                 break;
2956                         }
2957                 }
2958                 if (!found) {
2959                         goto out;
2960                 }
2961         }
2962
2963         /* Do DPMS ourselves */
2964         if (property == connector->dev->mode_config.dpms_property) {
2965                 if (connector->funcs->dpms)
2966                         (*connector->funcs->dpms)(connector, (int) out_resp->value);
2967                 ret = 0;
2968         } else if (connector->funcs->set_property)
2969                 ret = connector->funcs->set_property(connector, property, out_resp->value);
2970
2971         /* store the property value if successful */
2972         if (!ret)
2973                 drm_connector_property_set_value(connector, property, out_resp->value);
2974 out:
2975         mutex_unlock(&dev->mode_config.mutex);
2976         return ret;
2977 }
2978
2979 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2980                                       struct drm_encoder *encoder)
2981 {
2982         int i;
2983
2984         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2985                 if (connector->encoder_ids[i] == 0) {
2986                         connector->encoder_ids[i] = encoder->base.id;
2987                         return 0;
2988                 }
2989         }
2990         return -ENOMEM;
2991 }
2992 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2993
2994 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2995                                     struct drm_encoder *encoder)
2996 {
2997         int i;
2998         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2999                 if (connector->encoder_ids[i] == encoder->base.id) {
3000                         connector->encoder_ids[i] = 0;
3001                         if (connector->encoder == encoder)
3002                                 connector->encoder = NULL;
3003                         break;
3004                 }
3005         }
3006 }
3007 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3008
3009 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3010                                   int gamma_size)
3011 {
3012         crtc->gamma_size = gamma_size;
3013
3014         crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3015         if (!crtc->gamma_store) {
3016                 crtc->gamma_size = 0;
3017                 return false;
3018         }
3019
3020         return true;
3021 }
3022 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3023
3024 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3025                              void *data, struct drm_file *file_priv)
3026 {
3027         struct drm_mode_crtc_lut *crtc_lut = data;
3028         struct drm_mode_object *obj;
3029         struct drm_crtc *crtc;
3030         void *r_base, *g_base, *b_base;
3031         int size;
3032         int ret = 0;
3033
3034         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3035                 return -EINVAL;
3036
3037         mutex_lock(&dev->mode_config.mutex);
3038         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3039         if (!obj) {
3040                 ret = -EINVAL;
3041                 goto out;
3042         }
3043         crtc = obj_to_crtc(obj);
3044
3045         /* memcpy into gamma store */
3046         if (crtc_lut->gamma_size != crtc->gamma_size) {
3047                 ret = -EINVAL;
3048                 goto out;
3049         }
3050
3051         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3052         r_base = crtc->gamma_store;
3053         if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3054                 ret = -EFAULT;
3055                 goto out;
3056         }
3057
3058         g_base = r_base + size;
3059         if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3060                 ret = -EFAULT;
3061                 goto out;
3062         }
3063
3064         b_base = g_base + size;
3065         if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3066                 ret = -EFAULT;
3067                 goto out;
3068         }
3069
3070         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3071
3072 out:
3073         mutex_unlock(&dev->mode_config.mutex);
3074         return ret;
3075
3076 }
3077
3078 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3079                              void *data, struct drm_file *file_priv)
3080 {
3081         struct drm_mode_crtc_lut *crtc_lut = data;
3082         struct drm_mode_object *obj;
3083         struct drm_crtc *crtc;
3084         void *r_base, *g_base, *b_base;
3085         int size;
3086         int ret = 0;
3087
3088         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3089                 return -EINVAL;
3090
3091         mutex_lock(&dev->mode_config.mutex);
3092         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3093         if (!obj) {
3094                 ret = -EINVAL;
3095                 goto out;
3096         }
3097         crtc = obj_to_crtc(obj);
3098
3099         /* memcpy into gamma store */
3100         if (crtc_lut->gamma_size != crtc->gamma_size) {
3101                 ret = -EINVAL;
3102                 goto out;
3103         }
3104
3105         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3106         r_base = crtc->gamma_store;
3107         if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3108                 ret = -EFAULT;
3109                 goto out;
3110         }
3111
3112         g_base = r_base + size;
3113         if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3114                 ret = -EFAULT;
3115                 goto out;
3116         }
3117
3118         b_base = g_base + size;
3119         if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3120                 ret = -EFAULT;
3121                 goto out;
3122         }
3123 out:
3124         mutex_unlock(&dev->mode_config.mutex);
3125         return ret;
3126 }
3127
3128 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3129                              void *data, struct drm_file *file_priv)
3130 {
3131         struct drm_mode_crtc_page_flip *page_flip = data;
3132         struct drm_mode_object *obj;
3133         struct drm_crtc *crtc;
3134         struct drm_framebuffer *fb;
3135         struct drm_pending_vblank_event *e = NULL;
3136         unsigned long flags;
3137         int ret = -EINVAL;
3138
3139         if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3140             page_flip->reserved != 0)
3141                 return -EINVAL;
3142
3143         mutex_lock(&dev->mode_config.mutex);
3144         obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3145         if (!obj)
3146                 goto out;
3147         crtc = obj_to_crtc(obj);
3148
3149         if (crtc->fb == NULL) {
3150                 /* The framebuffer is currently unbound, presumably
3151                  * due to a hotplug event, that userspace has not
3152                  * yet discovered.
3153                  */
3154                 ret = -EBUSY;
3155                 goto out;
3156         }
3157
3158         if (crtc->funcs->page_flip == NULL)
3159                 goto out;
3160
3161         obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3162         if (!obj)
3163                 goto out;
3164         fb = obj_to_fb(obj);
3165
3166         if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3167                 ret = -ENOMEM;
3168                 spin_lock_irqsave(&dev->event_lock, flags);
3169                 if (file_priv->event_space < sizeof e->event) {
3170                         spin_unlock_irqrestore(&dev->event_lock, flags);
3171                         goto out;
3172                 }
3173                 file_priv->event_space -= sizeof e->event;
3174                 spin_unlock_irqrestore(&dev->event_lock, flags);
3175
3176                 e = kzalloc(sizeof *e, GFP_KERNEL);
3177                 if (e == NULL) {
3178                         spin_lock_irqsave(&dev->event_lock, flags);
3179                         file_priv->event_space += sizeof e->event;
3180                         spin_unlock_irqrestore(&dev->event_lock, flags);
3181                         goto out;
3182                 }
3183
3184                 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3185                 e->event.base.length = sizeof e->event;
3186                 e->event.user_data = page_flip->user_data;
3187                 e->base.event = &e->event.base;
3188                 e->base.file_priv = file_priv;
3189                 e->base.destroy =
3190                         (void (*) (struct drm_pending_event *)) kfree;
3191         }
3192
3193         ret = crtc->funcs->page_flip(crtc, fb, e);
3194         if (ret) {
3195                 spin_lock_irqsave(&dev->event_lock, flags);
3196                 file_priv->event_space += sizeof e->event;
3197                 spin_unlock_irqrestore(&dev->event_lock, flags);
3198                 kfree(e);
3199         }
3200
3201 out:
3202         mutex_unlock(&dev->mode_config.mutex);
3203         return ret;
3204 }
3205
3206 void drm_mode_config_reset(struct drm_device *dev)
3207 {
3208         struct drm_crtc *crtc;
3209         struct drm_encoder *encoder;
3210         struct drm_connector *connector;
3211
3212         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3213                 if (crtc->funcs->reset)
3214                         crtc->funcs->reset(crtc);
3215
3216         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3217                 if (encoder->funcs->reset)
3218                         encoder->funcs->reset(encoder);
3219
3220         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3221                 if (connector->funcs->reset)
3222                         connector->funcs->reset(connector);
3223 }
3224 EXPORT_SYMBOL(drm_mode_config_reset);
3225
3226 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3227                                void *data, struct drm_file *file_priv)
3228 {
3229         struct drm_mode_create_dumb *args = data;
3230
3231         if (!dev->driver->dumb_create)
3232                 return -ENOSYS;
3233         return dev->driver->dumb_create(file_priv, dev, args);
3234 }
3235
3236 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3237                              void *data, struct drm_file *file_priv)
3238 {
3239         struct drm_mode_map_dumb *args = data;
3240
3241         /* call driver ioctl to get mmap offset */
3242         if (!dev->driver->dumb_map_offset)
3243                 return -ENOSYS;
3244
3245         return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3246 }
3247
3248 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3249                                 void *data, struct drm_file *file_priv)
3250 {
3251         struct drm_mode_destroy_dumb *args = data;
3252
3253         if (!dev->driver->dumb_destroy)
3254                 return -ENOSYS;
3255
3256         return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3257 }
3258
3259 /*
3260  * Just need to support RGB formats here for compat with code that doesn't
3261  * use pixel formats directly yet.
3262  */
3263 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3264                           int *bpp)
3265 {
3266         switch (format) {
3267         case DRM_FORMAT_RGB332:
3268         case DRM_FORMAT_BGR233:
3269                 *depth = 8;
3270                 *bpp = 8;
3271                 break;
3272         case DRM_FORMAT_XRGB1555:
3273         case DRM_FORMAT_XBGR1555:
3274         case DRM_FORMAT_RGBX5551:
3275         case DRM_FORMAT_BGRX5551:
3276         case DRM_FORMAT_ARGB1555:
3277         case DRM_FORMAT_ABGR1555:
3278         case DRM_FORMAT_RGBA5551:
3279         case DRM_FORMAT_BGRA5551:
3280                 *depth = 15;
3281                 *bpp = 16;
3282                 break;
3283         case DRM_FORMAT_RGB565:
3284         case DRM_FORMAT_BGR565:
3285                 *depth = 16;
3286                 *bpp = 16;
3287                 break;
3288         case DRM_FORMAT_RGB888:
3289         case DRM_FORMAT_BGR888:
3290                 *depth = 24;
3291                 *bpp = 24;
3292                 break;
3293         case DRM_FORMAT_XRGB8888:
3294         case DRM_FORMAT_XBGR8888:
3295         case DRM_FORMAT_RGBX8888:
3296         case DRM_FORMAT_BGRX8888:
3297                 *depth = 24;
3298                 *bpp = 32;
3299                 break;
3300         case DRM_FORMAT_XRGB2101010:
3301         case DRM_FORMAT_XBGR2101010:
3302         case DRM_FORMAT_RGBX1010102:
3303         case DRM_FORMAT_BGRX1010102:
3304         case DRM_FORMAT_ARGB2101010:
3305         case DRM_FORMAT_ABGR2101010:
3306         case DRM_FORMAT_RGBA1010102:
3307         case DRM_FORMAT_BGRA1010102:
3308                 *depth = 30;
3309                 *bpp = 32;
3310                 break;
3311         case DRM_FORMAT_ARGB8888:
3312         case DRM_FORMAT_ABGR8888:
3313         case DRM_FORMAT_RGBA8888:
3314         case DRM_FORMAT_BGRA8888:
3315                 *depth = 32;
3316                 *bpp = 32;
3317                 break;
3318         default:
3319                 DRM_DEBUG_KMS("unsupported pixel format\n");
3320                 *depth = 0;
3321                 *bpp = 0;
3322                 break;
3323         }
3324 }
3325 EXPORT_SYMBOL(drm_fb_get_bpp_depth);