6fe63f0ccf3b7f2203e71f7840e328864941803d
[dragonfly.git] / sys / dev / 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  * $FreeBSD: src/sys/dev/drm2/drm_crtc.c,v 1.1 2012/05/22 11:07:44 kib Exp $
33  */
34
35 #include <drm/drmP.h>
36 #include <drm/drm_crtc.h>
37 #include <drm/drm_edid.h>
38 #include <sys/limits.h>
39
40 /* Avoid boilerplate.  I'm tired of typing. */
41 #define DRM_ENUM_NAME_FN(fnname, list)                          \
42         char *fnname(int val)                                   \
43         {                                                       \
44                 int i;                                          \
45                 for (i = 0; i < DRM_ARRAY_SIZE(list); i++) {    \
46                         if (list[i].type == val)                \
47                                 return list[i].name;            \
48                 }                                               \
49                 return "(unknown)";                             \
50         }
51
52 /*
53  * Global properties
54  */
55 static struct drm_prop_enum_list drm_dpms_enum_list[] =
56 {       { DRM_MODE_DPMS_ON, "On" },
57         { DRM_MODE_DPMS_STANDBY, "Standby" },
58         { DRM_MODE_DPMS_SUSPEND, "Suspend" },
59         { DRM_MODE_DPMS_OFF, "Off" }
60 };
61
62 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
63
64 /*
65  * Optional properties
66  */
67 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
68 {
69         { DRM_MODE_SCALE_NONE, "None" },
70         { DRM_MODE_SCALE_FULLSCREEN, "Full" },
71         { DRM_MODE_SCALE_CENTER, "Center" },
72         { DRM_MODE_SCALE_ASPECT, "Full aspect" },
73 };
74
75 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
76 {
77         { DRM_MODE_DITHERING_OFF, "Off" },
78         { DRM_MODE_DITHERING_ON, "On" },
79         { DRM_MODE_DITHERING_AUTO, "Automatic" },
80 };
81
82 /*
83  * Non-global properties, but "required" for certain connectors.
84  */
85 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
86 {
87         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
88         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
89         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
90 };
91
92 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
93
94 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
95 {
96         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
97         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
98         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
99 };
100
101 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
102                  drm_dvi_i_subconnector_enum_list)
103
104 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
105 {
106         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
107         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
108         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
109         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
110         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
111 };
112
113 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
114
115 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
116 {
117         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
118         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
119         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
120         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
121         { DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
122 };
123
124 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
125                  drm_tv_subconnector_enum_list)
126
127 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
128         { DRM_MODE_DIRTY_OFF,      "Off"      },
129         { DRM_MODE_DIRTY_ON,       "On"       },
130         { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
131 };
132
133 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
134                  drm_dirty_info_enum_list)
135
136 struct drm_conn_prop_enum_list {
137         int type;
138         char *name;
139         int count;
140 };
141
142 /*
143  * Connector and encoder types.
144  */
145 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
146 {       { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
147         { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
148         { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
149         { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
150         { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
151         { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
152         { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
153         { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
154         { DRM_MODE_CONNECTOR_Component, "Component", 0 },
155         { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
156         { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
157         { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
158         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
159         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
160         { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
161 };
162
163 static struct drm_prop_enum_list drm_encoder_enum_list[] =
164 {       { DRM_MODE_ENCODER_NONE, "None" },
165         { DRM_MODE_ENCODER_DAC, "DAC" },
166         { DRM_MODE_ENCODER_TMDS, "TMDS" },
167         { DRM_MODE_ENCODER_LVDS, "LVDS" },
168         { DRM_MODE_ENCODER_TVDAC, "TV" },
169 };
170
171 static void drm_property_destroy_blob(struct drm_device *dev,
172                                struct drm_property_blob *blob);
173
174 char *drm_get_encoder_name(struct drm_encoder *encoder)
175 {
176         static char buf[32];
177
178         ksnprintf(buf, 32, "%s-%d",
179                  drm_encoder_enum_list[encoder->encoder_type].name,
180                  encoder->base.id);
181         return buf;
182 }
183
184 char *drm_get_connector_name(struct drm_connector *connector)
185 {
186         static char buf[32];
187
188         ksnprintf(buf, 32, "%s-%d",
189                  drm_connector_enum_list[connector->connector_type].name,
190                  connector->connector_type_id);
191         return buf;
192 }
193
194 char *drm_get_connector_status_name(enum drm_connector_status status)
195 {
196         if (status == connector_status_connected)
197                 return "connected";
198         else if (status == connector_status_disconnected)
199                 return "disconnected";
200         else
201                 return "unknown";
202 }
203
204 /**
205  * drm_mode_object_get - allocate a new identifier
206  * @dev: DRM device
207  * @ptr: object pointer, used to generate unique ID
208  * @type: object type
209  *
210  * LOCKING:
211  *
212  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
213  * for tracking modes, CRTCs and connectors.
214  *
215  * RETURNS:
216  * New unique (relative to other objects in @dev) integer identifier for the
217  * object.
218  */
219 static int drm_mode_object_get(struct drm_device *dev,
220                                struct drm_mode_object *obj, uint32_t obj_type)
221 {
222         int new_id = 0;
223         int ret;
224
225 again:
226         if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
227                 DRM_ERROR("Ran out memory getting a mode number\n");
228                 return -ENOMEM;
229         }
230
231         spin_lock(&dev->mode_config.idr_mutex);
232         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
233         spin_unlock(&dev->mode_config.idr_mutex);
234         if (ret == -EAGAIN)
235                 goto again;
236         else if (ret)
237                 return ret;
238
239         obj->id = new_id;
240         obj->type = obj_type;
241         return 0;
242 }
243
244 /**
245  * drm_mode_object_put - free an identifer
246  * @dev: DRM device
247  * @id: ID to free
248  *
249  * LOCKING:
250  * Caller must hold DRM mode_config lock.
251  *
252  * Free @id from @dev's unique identifier pool.
253  */
254 static void drm_mode_object_put(struct drm_device *dev,
255                                 struct drm_mode_object *object)
256 {
257         spin_lock(&dev->mode_config.idr_mutex);
258         idr_remove(&dev->mode_config.crtc_idr, object->id);
259         spin_unlock(&dev->mode_config.idr_mutex);
260 }
261
262 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
263                 uint32_t id, uint32_t type)
264 {
265         struct drm_mode_object *obj = NULL;
266
267         spin_lock(&dev->mode_config.idr_mutex);
268         obj = idr_find(&dev->mode_config.crtc_idr, id);
269         if (!obj || (obj->type != type) || (obj->id != id))
270                 obj = NULL;
271         spin_unlock(&dev->mode_config.idr_mutex);
272
273         return obj;
274 }
275
276 /**
277  * drm_framebuffer_init - initialize a framebuffer
278  * @dev: DRM device
279  *
280  * LOCKING:
281  * Caller must hold mode config lock.
282  *
283  * Allocates an ID for the framebuffer's parent mode object, sets its mode
284  * functions & device file and adds it to the master fd list.
285  *
286  * RETURNS:
287  * Zero on success, error code on failure.
288  */
289 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
290                          const struct drm_framebuffer_funcs *funcs)
291 {
292         int ret;
293
294         DRM_MODE_CONFIG_ASSERT_LOCKED(dev);
295
296         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
297         if (ret)
298                 return ret;
299
300         fb->dev = dev;
301         fb->funcs = funcs;
302         dev->mode_config.num_fb++;
303         list_add(&fb->head, &dev->mode_config.fb_list);
304
305         return 0;
306 }
307
308 /**
309  * drm_framebuffer_cleanup - remove a framebuffer object
310  * @fb: framebuffer to remove
311  *
312  * LOCKING:
313  * Caller must hold mode config lock.
314  *
315  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
316  * it, setting it to NULL.
317  */
318 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
319 {
320         struct drm_device *dev = fb->dev;
321         struct drm_crtc *crtc;
322         struct drm_plane *plane;
323         struct drm_mode_set set;
324         int ret;
325
326         DRM_MODE_CONFIG_ASSERT_LOCKED(dev);
327
328         /* remove from any CRTC */
329         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
330                 if (crtc->fb == fb) {
331                         /* should turn off the crtc */
332                         memset(&set, 0, sizeof(struct drm_mode_set));
333                         set.crtc = crtc;
334                         set.fb = NULL;
335                         ret = crtc->funcs->set_config(&set);
336                         if (ret)
337                                 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
338                 }
339         }
340
341         list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
342                 if (plane->fb == fb) {
343                         /* should turn off the crtc */
344                         ret = plane->funcs->disable_plane(plane);
345                         if (ret)
346                                 DRM_ERROR("failed to disable plane with busy fb\n");
347                         /* disconnect the plane from the fb and crtc: */
348                         plane->fb = NULL;
349                         plane->crtc = NULL;
350                 }
351         }
352
353         drm_mode_object_put(dev, &fb->base);
354         list_del(&fb->head);
355         dev->mode_config.num_fb--;
356 }
357
358 /**
359  * drm_crtc_init - Initialise a new CRTC object
360  * @dev: DRM device
361  * @crtc: CRTC object to init
362  * @funcs: callbacks for the new CRTC
363  *
364  * LOCKING:
365  * Caller must hold mode config lock.
366  *
367  * Inits a new object created as base part of an driver crtc object.
368  *
369  * RETURNS:
370  * Zero on success, error code on failure.
371  */
372 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
373                    const struct drm_crtc_funcs *funcs)
374 {
375         int ret;
376
377         crtc->dev = dev;
378         crtc->funcs = funcs;
379
380         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
381         ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
382         if (ret)
383                 goto out;
384
385         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
386         dev->mode_config.num_crtc++;
387 out:
388         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
389
390         return ret;
391 }
392
393 /**
394  * drm_crtc_cleanup - Cleans up the core crtc usage.
395  * @crtc: CRTC to cleanup
396  *
397  * LOCKING:
398  * Caller must hold mode config lock.
399  *
400  * Cleanup @crtc. Removes from drm modesetting space
401  * does NOT free object, caller does that.
402  */
403 void drm_crtc_cleanup(struct drm_crtc *crtc)
404 {
405         struct drm_device *dev = crtc->dev;
406
407         DRM_MODE_CONFIG_ASSERT_LOCKED(dev);
408
409         if (crtc->gamma_store) {
410                 drm_free(crtc->gamma_store, DRM_MEM_KMS);
411                 crtc->gamma_store = NULL;
412         }
413
414         drm_mode_object_put(dev, &crtc->base);
415         list_del(&crtc->head);
416         dev->mode_config.num_crtc--;
417 }
418
419 /**
420  * drm_mode_probed_add - add a mode to a connector's probed mode list
421  * @connector: connector the new mode
422  * @mode: mode data
423  *
424  * LOCKING:
425  * Caller must hold mode config lock.
426  *
427  * Add @mode to @connector's mode list for later use.
428  */
429 void drm_mode_probed_add(struct drm_connector *connector,
430                          struct drm_display_mode *mode)
431 {
432
433         DRM_MODE_CONFIG_ASSERT_LOCKED(connector->dev);
434
435         list_add(&mode->head, &connector->probed_modes);
436 }
437
438 /**
439  * drm_mode_remove - remove and free a mode
440  * @connector: connector list to modify
441  * @mode: mode to remove
442  *
443  * LOCKING:
444  * Caller must hold mode config lock.
445  *
446  * Remove @mode from @connector's mode list, then free it.
447  */
448 void drm_mode_remove(struct drm_connector *connector,
449                      struct drm_display_mode *mode)
450 {
451
452         DRM_MODE_CONFIG_ASSERT_LOCKED(connector->dev);
453
454         list_del(&mode->head);
455         drm_mode_destroy(connector->dev, mode);
456 }
457
458 /**
459  * drm_connector_init - Init a preallocated connector
460  * @dev: DRM device
461  * @connector: the connector to init
462  * @funcs: callbacks for this connector
463  * @name: user visible name of the connector
464  *
465  * LOCKING:
466  * Takes mode config lock.
467  *
468  * Initialises a preallocated connector. Connectors should be
469  * subclassed as part of driver connector objects.
470  *
471  * RETURNS:
472  * Zero on success, error code on failure.
473  */
474 int drm_connector_init(struct drm_device *dev,
475                        struct drm_connector *connector,
476                        const struct drm_connector_funcs *funcs,
477                        int connector_type)
478 {
479         int ret;
480
481         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
482
483         ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
484         if (ret)
485                 goto out;
486
487         connector->dev = dev;
488         connector->funcs = funcs;
489         connector->connector_type = connector_type;
490         connector->connector_type_id =
491                 ++drm_connector_enum_list[connector_type].count; /* TODO */
492         INIT_LIST_HEAD(&connector->user_modes);
493         INIT_LIST_HEAD(&connector->probed_modes);
494         INIT_LIST_HEAD(&connector->modes);
495         connector->edid_blob_ptr = NULL;
496
497         list_add_tail(&connector->head, &dev->mode_config.connector_list);
498         dev->mode_config.num_connector++;
499
500         drm_connector_attach_property(connector,
501                                       dev->mode_config.edid_property, 0);
502
503         drm_connector_attach_property(connector,
504                                       dev->mode_config.dpms_property, 0);
505
506 out:
507         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
508
509         return ret;
510 }
511
512 /**
513  * drm_connector_cleanup - cleans up an initialised connector
514  * @connector: connector to cleanup
515  *
516  * LOCKING:
517  * Takes mode config lock.
518  *
519  * Cleans up the connector but doesn't free the object.
520  */
521 void drm_connector_cleanup(struct drm_connector *connector)
522 {
523         struct drm_device *dev = connector->dev;
524         struct drm_display_mode *mode, *t;
525
526         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
527                 drm_mode_remove(connector, mode);
528
529         list_for_each_entry_safe(mode, t, &connector->modes, head)
530                 drm_mode_remove(connector, mode);
531
532         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
533                 drm_mode_remove(connector, mode);
534
535         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
536         if (connector->edid_blob_ptr)
537                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
538         drm_mode_object_put(dev, &connector->base);
539         list_del(&connector->head);
540         dev->mode_config.num_connector--;
541         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
542 }
543
544 int drm_encoder_init(struct drm_device *dev,
545                      struct drm_encoder *encoder,
546                      const struct drm_encoder_funcs *funcs,
547                      int encoder_type)
548 {
549         int ret;
550
551         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
552
553         ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
554         if (ret)
555                 goto out;
556
557         encoder->dev = dev;
558         encoder->encoder_type = encoder_type;
559         encoder->funcs = funcs;
560
561         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
562         dev->mode_config.num_encoder++;
563
564 out:
565         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
566
567         return ret;
568 }
569
570 void drm_encoder_cleanup(struct drm_encoder *encoder)
571 {
572         struct drm_device *dev = encoder->dev;
573
574         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
575         drm_mode_object_put(dev, &encoder->base);
576         list_del(&encoder->head);
577         dev->mode_config.num_encoder--;
578         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
579 }
580
581 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
582                    unsigned long possible_crtcs,
583                    const struct drm_plane_funcs *funcs,
584                    const uint32_t *formats, uint32_t format_count,
585                    bool priv)
586 {
587         int ret;
588
589         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
590
591         ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
592         if (ret)
593                 goto out;
594
595         plane->dev = dev;
596         plane->funcs = funcs;
597         plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
598             DRM_MEM_KMS, M_WAITOK);
599
600         memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
601         plane->format_count = format_count;
602         plane->possible_crtcs = possible_crtcs;
603
604         /* private planes are not exposed to userspace, but depending on
605          * display hardware, might be convenient to allow sharing programming
606          * for the scanout engine with the crtc implementation.
607          */
608         if (!priv) {
609                 list_add_tail(&plane->head, &dev->mode_config.plane_list);
610                 dev->mode_config.num_plane++;
611         } else {
612                 INIT_LIST_HEAD(&plane->head);
613         }
614
615 out:
616         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
617
618         return ret;
619 }
620
621 void drm_plane_cleanup(struct drm_plane *plane)
622 {
623         struct drm_device *dev = plane->dev;
624
625         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
626         drm_free(plane->format_types, DRM_MEM_KMS);
627         drm_mode_object_put(dev, &plane->base);
628         /* if not added to a list, it must be a private plane */
629         if (!list_empty(&plane->head)) {
630                 list_del(&plane->head);
631                 dev->mode_config.num_plane--;
632         }
633         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
634 }
635
636 /**
637  * drm_mode_create - create a new display mode
638  * @dev: DRM device
639  *
640  * LOCKING:
641  * Caller must hold DRM mode_config.mutex.
642  *
643  * Create a new drm_display_mode, give it an ID, and return it.
644  *
645  * RETURNS:
646  * Pointer to new mode on success, NULL on error.
647  */
648 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
649 {
650         struct drm_display_mode *nmode;
651
652         nmode = kmalloc(sizeof(struct drm_display_mode), DRM_MEM_KMS,
653             M_WAITOK | M_ZERO);
654
655         if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
656                 drm_free(nmode, DRM_MEM_KMS);
657                 return (NULL);
658         }
659         return nmode;
660 }
661
662 /**
663  * drm_mode_destroy - remove a mode
664  * @dev: DRM device
665  * @mode: mode to remove
666  *
667  * LOCKING:
668  * Caller must hold mode config lock.
669  *
670  * Free @mode's unique identifier, then free it.
671  */
672 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
673 {
674         if (!mode)
675                 return;
676
677         drm_mode_object_put(dev, &mode->base);
678
679         drm_free(mode, DRM_MEM_KMS);
680 }
681
682 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
683 {
684         struct drm_property *edid;
685         struct drm_property *dpms;
686
687         /*
688          * Standard properties (apply to all connectors)
689          */
690         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
691                                    DRM_MODE_PROP_IMMUTABLE,
692                                    "EDID", 0);
693         dev->mode_config.edid_property = edid;
694
695         dpms = drm_property_create_enum(dev, 0,
696                                    "DPMS", drm_dpms_enum_list,
697                                     DRM_ARRAY_SIZE(drm_dpms_enum_list));
698         dev->mode_config.dpms_property = dpms;
699
700         return 0;
701 }
702
703 /**
704  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
705  * @dev: DRM device
706  *
707  * Called by a driver the first time a DVI-I connector is made.
708  */
709 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
710 {
711         struct drm_property *dvi_i_selector;
712         struct drm_property *dvi_i_subconnector;
713
714         if (dev->mode_config.dvi_i_select_subconnector_property)
715                 return 0;
716
717         dvi_i_selector =
718                 drm_property_create_enum(dev, 0,
719                                     "select subconnector",
720                                     drm_dvi_i_select_enum_list,
721                                     DRM_ARRAY_SIZE(drm_dvi_i_select_enum_list));
722         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
723
724         dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
725                                     "subconnector",
726                                     drm_dvi_i_subconnector_enum_list,
727                                     DRM_ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
728         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
729
730         return 0;
731 }
732
733 /**
734  * drm_create_tv_properties - create TV specific connector properties
735  * @dev: DRM device
736  * @num_modes: number of different TV formats (modes) supported
737  * @modes: array of pointers to strings containing name of each format
738  *
739  * Called by a driver's TV initialization routine, this function creates
740  * the TV specific connector properties for a given device.  Caller is
741  * responsible for allocating a list of format names and passing them to
742  * this routine.
743  */
744 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
745                                   char *modes[])
746 {
747         struct drm_property *tv_selector;
748         struct drm_property *tv_subconnector;
749         int i;
750
751         if (dev->mode_config.tv_select_subconnector_property)
752                 return 0;
753
754         /*
755          * Basic connector properties
756          */
757         tv_selector = drm_property_create_enum(dev, 0,
758                                           "select subconnector",
759                                           drm_tv_select_enum_list,
760                                           DRM_ARRAY_SIZE(drm_tv_select_enum_list));
761         dev->mode_config.tv_select_subconnector_property = tv_selector;
762
763         tv_subconnector =
764                 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
765                                     "subconnector",
766                                     drm_tv_subconnector_enum_list,
767                                     DRM_ARRAY_SIZE(drm_tv_subconnector_enum_list));
768         dev->mode_config.tv_subconnector_property = tv_subconnector;
769
770         /*
771          * Other, TV specific properties: margins & TV modes.
772          */
773         dev->mode_config.tv_left_margin_property =
774                 drm_property_create_range(dev, 0, "left margin", 0, 100);
775
776         dev->mode_config.tv_right_margin_property =
777                 drm_property_create_range(dev, 0, "right margin", 0, 100);
778
779         dev->mode_config.tv_top_margin_property =
780                 drm_property_create_range(dev, 0, "top margin", 0, 100);
781
782         dev->mode_config.tv_bottom_margin_property =
783                 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
784
785         dev->mode_config.tv_mode_property =
786                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
787                                     "mode", num_modes);
788         for (i = 0; i < num_modes; i++)
789                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
790                                       i, modes[i]);
791
792         dev->mode_config.tv_brightness_property =
793                 drm_property_create_range(dev, 0, "brightness", 0, 100);
794
795         dev->mode_config.tv_contrast_property =
796                 drm_property_create_range(dev, 0, "contrast", 0, 100);
797
798         dev->mode_config.tv_flicker_reduction_property =
799                 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
800
801         dev->mode_config.tv_overscan_property =
802                 drm_property_create_range(dev, 0, "overscan", 0, 100);
803
804         dev->mode_config.tv_saturation_property =
805                 drm_property_create_range(dev, 0, "saturation", 0, 100);
806
807         dev->mode_config.tv_hue_property =
808                 drm_property_create_range(dev, 0, "hue", 0, 100);
809
810         return 0;
811 }
812
813 /**
814  * drm_mode_create_scaling_mode_property - create scaling mode property
815  * @dev: DRM device
816  *
817  * Called by a driver the first time it's needed, must be attached to desired
818  * connectors.
819  */
820 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
821 {
822         struct drm_property *scaling_mode;
823
824         if (dev->mode_config.scaling_mode_property)
825                 return 0;
826
827         scaling_mode =
828                 drm_property_create_enum(dev, 0, "scaling mode",
829                                 drm_scaling_mode_enum_list,
830                                     DRM_ARRAY_SIZE(drm_scaling_mode_enum_list));
831
832         dev->mode_config.scaling_mode_property = scaling_mode;
833
834         return 0;
835 }
836
837 /**
838  * drm_mode_create_dithering_property - create dithering property
839  * @dev: DRM device
840  *
841  * Called by a driver the first time it's needed, must be attached to desired
842  * connectors.
843  */
844 int drm_mode_create_dithering_property(struct drm_device *dev)
845 {
846         struct drm_property *dithering_mode;
847
848         if (dev->mode_config.dithering_mode_property)
849                 return 0;
850
851         dithering_mode =
852                 drm_property_create_enum(dev, 0, "dithering",
853                                 drm_dithering_mode_enum_list,
854                                     DRM_ARRAY_SIZE(drm_dithering_mode_enum_list));
855         dev->mode_config.dithering_mode_property = dithering_mode;
856
857         return 0;
858 }
859
860 /**
861  * drm_mode_create_dirty_property - create dirty property
862  * @dev: DRM device
863  *
864  * Called by a driver the first time it's needed, must be attached to desired
865  * connectors.
866  */
867 int drm_mode_create_dirty_info_property(struct drm_device *dev)
868 {
869         struct drm_property *dirty_info;
870
871         if (dev->mode_config.dirty_info_property)
872                 return 0;
873
874         dirty_info =
875                 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
876                                     "dirty",
877                                     drm_dirty_info_enum_list,
878                                     DRM_ARRAY_SIZE(drm_dirty_info_enum_list));
879         dev->mode_config.dirty_info_property = dirty_info;
880
881         return 0;
882 }
883
884 /**
885  * drm_mode_config_init - initialize DRM mode_configuration structure
886  * @dev: DRM device
887  *
888  * LOCKING:
889  * None, should happen single threaded at init time.
890  *
891  * Initialize @dev's mode_config structure, used for tracking the graphics
892  * configuration of @dev.
893  */
894 void drm_mode_config_init(struct drm_device *dev)
895 {
896         lockinit(&dev->mode_config.mutex, "kmslk", 0, LK_CANRECURSE);
897         spin_init(&dev->mode_config.idr_mutex);
898         INIT_LIST_HEAD(&dev->mode_config.fb_list);
899         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
900         INIT_LIST_HEAD(&dev->mode_config.connector_list);
901         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
902         INIT_LIST_HEAD(&dev->mode_config.property_list);
903         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
904         INIT_LIST_HEAD(&dev->mode_config.plane_list);
905         idr_init(&dev->mode_config.crtc_idr);
906
907         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
908         drm_mode_create_standard_connector_properties(dev);
909         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
910
911         /* Just to be sure */
912         dev->mode_config.num_fb = 0;
913         dev->mode_config.num_connector = 0;
914         dev->mode_config.num_crtc = 0;
915         dev->mode_config.num_encoder = 0;
916 }
917
918 static int
919 drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
920 {
921         uint32_t total_objects = 0;
922
923         total_objects += dev->mode_config.num_crtc;
924         total_objects += dev->mode_config.num_connector;
925         total_objects += dev->mode_config.num_encoder;
926
927         group->id_list = kmalloc(total_objects * sizeof(uint32_t),
928             DRM_MEM_KMS, M_WAITOK | M_ZERO);
929
930         group->num_crtcs = 0;
931         group->num_connectors = 0;
932         group->num_encoders = 0;
933         return 0;
934 }
935
936 int drm_mode_group_init_legacy_group(struct drm_device *dev,
937                                      struct drm_mode_group *group)
938 {
939         struct drm_crtc *crtc;
940         struct drm_encoder *encoder;
941         struct drm_connector *connector;
942         int ret;
943
944         if ((ret = drm_mode_group_init(dev, group)))
945                 return ret;
946
947         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
948                 group->id_list[group->num_crtcs++] = crtc->base.id;
949
950         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
951                 group->id_list[group->num_crtcs + group->num_encoders++] =
952                 encoder->base.id;
953
954         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
955                 group->id_list[group->num_crtcs + group->num_encoders +
956                                group->num_connectors++] = connector->base.id;
957
958         return 0;
959 }
960
961 /**
962  * drm_mode_config_cleanup - free up DRM mode_config info
963  * @dev: DRM device
964  *
965  * LOCKING:
966  * Caller must hold mode config lock.
967  *
968  * Free up all the connectors and CRTCs associated with this DRM device, then
969  * free up the framebuffers and associated buffer objects.
970  *
971  * FIXME: cleanup any dangling user buffer objects too
972  */
973 void drm_mode_config_cleanup(struct drm_device *dev)
974 {
975         struct drm_connector *connector, *ot;
976         struct drm_crtc *crtc, *ct;
977         struct drm_encoder *encoder, *enct;
978         struct drm_framebuffer *fb, *fbt;
979         struct drm_property *property, *pt;
980         struct drm_plane *plane, *plt;
981
982         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
983                                  head) {
984                 encoder->funcs->destroy(encoder);
985         }
986
987         list_for_each_entry_safe(connector, ot,
988                                  &dev->mode_config.connector_list, head) {
989                 connector->funcs->destroy(connector);
990         }
991
992         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
993                                  head) {
994                 drm_property_destroy(dev, property);
995         }
996
997         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
998                 fb->funcs->destroy(fb);
999         }
1000
1001         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1002                 crtc->funcs->destroy(crtc);
1003         }
1004
1005         list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1006                                  head) {
1007                 plane->funcs->destroy(plane);
1008         }
1009
1010         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1011                 crtc->funcs->destroy(crtc);
1012         }
1013
1014         idr_remove_all(&dev->mode_config.crtc_idr);
1015         idr_destroy(&dev->mode_config.crtc_idr);
1016 }
1017
1018 /**
1019  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1020  * @out: drm_mode_modeinfo struct to return to the user
1021  * @in: drm_display_mode to use
1022  *
1023  * LOCKING:
1024  * None.
1025  *
1026  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1027  * the user.
1028  */
1029 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1030                                       const struct drm_display_mode *in)
1031 {
1032         if (in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1033             in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1034             in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1035             in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1036             in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX)
1037                 kprintf("timing values too large for mode info\n");
1038
1039         out->clock = in->clock;
1040         out->hdisplay = in->hdisplay;
1041         out->hsync_start = in->hsync_start;
1042         out->hsync_end = in->hsync_end;
1043         out->htotal = in->htotal;
1044         out->hskew = in->hskew;
1045         out->vdisplay = in->vdisplay;
1046         out->vsync_start = in->vsync_start;
1047         out->vsync_end = in->vsync_end;
1048         out->vtotal = in->vtotal;
1049         out->vscan = in->vscan;
1050         out->vrefresh = in->vrefresh;
1051         out->flags = in->flags;
1052         out->type = in->type;
1053         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1054         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1055 }
1056
1057 /**
1058  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1059  * @out: drm_display_mode to return to the user
1060  * @in: drm_mode_modeinfo to use
1061  *
1062  * LOCKING:
1063  * None.
1064  *
1065  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1066  * the caller.
1067  *
1068  * RETURNS:
1069  * Zero on success, errno on failure.
1070  */
1071 static int drm_crtc_convert_umode(struct drm_display_mode *out,
1072                                   const struct drm_mode_modeinfo *in)
1073 {
1074         if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1075                 return ERANGE;
1076
1077         out->clock = in->clock;
1078         out->hdisplay = in->hdisplay;
1079         out->hsync_start = in->hsync_start;
1080         out->hsync_end = in->hsync_end;
1081         out->htotal = in->htotal;
1082         out->hskew = in->hskew;
1083         out->vdisplay = in->vdisplay;
1084         out->vsync_start = in->vsync_start;
1085         out->vsync_end = in->vsync_end;
1086         out->vtotal = in->vtotal;
1087         out->vscan = in->vscan;
1088         out->vrefresh = in->vrefresh;
1089         out->flags = in->flags;
1090         out->type = in->type;
1091         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1092         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1093
1094         return 0;
1095 }
1096
1097 /**
1098  * drm_mode_getresources - get graphics configuration
1099  * @inode: inode from the ioctl
1100  * @filp: file * from the ioctl
1101  * @cmd: cmd from ioctl
1102  * @arg: arg from ioctl
1103  *
1104  * LOCKING:
1105  * Takes mode config lock.
1106  *
1107  * Construct a set of configuration description structures and return
1108  * them to the user, including CRTC, connector and framebuffer configuration.
1109  *
1110  * Called by the user via ioctl.
1111  *
1112  * RETURNS:
1113  * Zero on success, errno on failure.
1114  */
1115 int drm_mode_getresources(struct drm_device *dev, void *data,
1116                           struct drm_file *file_priv)
1117 {
1118         struct drm_mode_card_res *card_res = data;
1119         struct list_head *lh;
1120         struct drm_framebuffer *fb;
1121         struct drm_connector *connector;
1122         struct drm_crtc *crtc;
1123         struct drm_encoder *encoder;
1124         int ret = 0;
1125         int connector_count = 0;
1126         int crtc_count = 0;
1127         int fb_count = 0;
1128         int encoder_count = 0;
1129         int copied = 0, i;
1130         uint32_t __user *fb_id;
1131         uint32_t __user *crtc_id;
1132         uint32_t __user *connector_id;
1133         uint32_t __user *encoder_id;
1134         struct drm_mode_group *mode_group;
1135
1136         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1137                 return (EINVAL);
1138
1139         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1140
1141         /*
1142          * For the non-control nodes we need to limit the list of resources
1143          * by IDs in the group list for this node
1144          */
1145         list_for_each(lh, &file_priv->fbs)
1146                 fb_count++;
1147
1148 #if 1
1149         mode_group = NULL; /* XXXKIB */
1150         if (1 || file_priv->master) {
1151 #else
1152         mode_group = &file_priv->masterp->minor->mode_group;
1153         if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1154 #endif
1155
1156                 list_for_each(lh, &dev->mode_config.crtc_list)
1157                         crtc_count++;
1158
1159                 list_for_each(lh, &dev->mode_config.connector_list)
1160                         connector_count++;
1161
1162                 list_for_each(lh, &dev->mode_config.encoder_list)
1163                         encoder_count++;
1164         } else {
1165
1166                 crtc_count = mode_group->num_crtcs;
1167                 connector_count = mode_group->num_connectors;
1168                 encoder_count = mode_group->num_encoders;
1169         }
1170
1171         card_res->max_height = dev->mode_config.max_height;
1172         card_res->min_height = dev->mode_config.min_height;
1173         card_res->max_width = dev->mode_config.max_width;
1174         card_res->min_width = dev->mode_config.min_width;
1175
1176         /* handle this in 4 parts */
1177         /* FBs */
1178         if (card_res->count_fbs >= fb_count) {
1179                 copied = 0;
1180                 fb_id = (uint32_t *)(uintptr_t)card_res->fb_id_ptr;
1181                 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1182                         if (copyout(&fb->base.id, fb_id + copied,
1183                             sizeof(uint32_t))) {
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 *)(uintptr_t)card_res->crtc_id_ptr;
1196 #if 1
1197                 if (1 || file_priv->master) {
1198 #else
1199                 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1200 #endif
1201                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1202                                             head) {
1203                                 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1204                                 if (copyout(&crtc->base.id, crtc_id +
1205                                     copied, sizeof(uint32_t))) {
1206                                         ret = EFAULT;
1207                                         goto out;
1208                                 }
1209                                 copied++;
1210                         }
1211                 } else {
1212                         for (i = 0; i < mode_group->num_crtcs; i++) {
1213                                 if (copyout(&mode_group->id_list[i],
1214                                     crtc_id + copied, sizeof(uint32_t))) {
1215                                         ret = EFAULT;
1216                                         goto out;
1217                                 }
1218                                 copied++;
1219                         }
1220                 }
1221         }
1222         card_res->count_crtcs = crtc_count;
1223
1224         /* Encoders */
1225         if (card_res->count_encoders >= encoder_count) {
1226                 copied = 0;
1227                 encoder_id = (uint32_t *)(uintptr_t)card_res->encoder_id_ptr;
1228 #if 1
1229                 if (file_priv->master) {
1230 #else
1231                 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1232 #endif
1233                         list_for_each_entry(encoder,
1234                                             &dev->mode_config.encoder_list,
1235                                             head) {
1236                                 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1237                                                 drm_get_encoder_name(encoder));
1238                                 if (copyout(&encoder->base.id, encoder_id +
1239                                     copied, sizeof(uint32_t))) {
1240                                         ret = EFAULT;
1241                                         goto out;
1242                                 }
1243                                 copied++;
1244                         }
1245                 } else {
1246                         for (i = mode_group->num_crtcs;
1247                             i < mode_group->num_crtcs + mode_group->num_encoders;
1248                              i++) {
1249                                 if (copyout(&mode_group->id_list[i],
1250                                     encoder_id + copied, sizeof(uint32_t))) {
1251                                         ret = EFAULT;
1252                                         goto out;
1253                                 }
1254                                 copied++;
1255                         }
1256
1257                 }
1258         }
1259         card_res->count_encoders = encoder_count;
1260
1261         /* Connectors */
1262         if (card_res->count_connectors >= connector_count) {
1263                 copied = 0;
1264                 connector_id = (uint32_t *)(uintptr_t)card_res->connector_id_ptr;
1265 #if 1
1266                 if (file_priv->master) {
1267 #else
1268                 if (file_priv->masterp->minor->type == DRM_MINOR_CONTROL) {
1269 #endif
1270                         list_for_each_entry(connector,
1271                                             &dev->mode_config.connector_list,
1272                                             head) {
1273                                 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1274                                         connector->base.id,
1275                                         drm_get_connector_name(connector));
1276                                 if (copyout(&connector->base.id,
1277                                     connector_id + copied, sizeof(uint32_t))) {
1278                                         ret = EFAULT;
1279                                         goto out;
1280                                 }
1281                                 copied++;
1282                         }
1283                 } else {
1284                         int start = mode_group->num_crtcs +
1285                                 mode_group->num_encoders;
1286                         for (i = start; i < start + mode_group->num_connectors; i++) {
1287                                 if (copyout(&mode_group->id_list[i],
1288                                     connector_id + copied, sizeof(uint32_t))) {
1289                                         ret = EFAULT;
1290                                         goto out;
1291                                 }
1292                                 copied++;
1293                         }
1294                 }
1295         }
1296         card_res->count_connectors = connector_count;
1297
1298         DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1299                   card_res->count_connectors, card_res->count_encoders);
1300
1301 out:
1302         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1303         return ret;
1304 }
1305
1306 /**
1307  * drm_mode_getcrtc - get CRTC configuration
1308  * @inode: inode from the ioctl
1309  * @filp: file * from the ioctl
1310  * @cmd: cmd from ioctl
1311  * @arg: arg from ioctl
1312  *
1313  * LOCKING:
1314  * Takes mode config lock.
1315  *
1316  * Construct a CRTC configuration structure to return to the user.
1317  *
1318  * Called by the user via ioctl.
1319  *
1320  * RETURNS:
1321  * Zero on success, errno on failure.
1322  */
1323 int drm_mode_getcrtc(struct drm_device *dev,
1324                      void *data, struct drm_file *file_priv)
1325 {
1326         struct drm_mode_crtc *crtc_resp = data;
1327         struct drm_crtc *crtc;
1328         struct drm_mode_object *obj;
1329         int ret = 0;
1330
1331         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1332                 return (EINVAL);
1333
1334         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1335
1336         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1337                                    DRM_MODE_OBJECT_CRTC);
1338         if (!obj) {
1339                 ret = (EINVAL);
1340                 goto out;
1341         }
1342         crtc = obj_to_crtc(obj);
1343
1344         crtc_resp->x = crtc->x;
1345         crtc_resp->y = crtc->y;
1346         crtc_resp->gamma_size = crtc->gamma_size;
1347         if (crtc->fb)
1348                 crtc_resp->fb_id = crtc->fb->base.id;
1349         else
1350                 crtc_resp->fb_id = 0;
1351
1352         if (crtc->enabled) {
1353
1354                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1355                 crtc_resp->mode_valid = 1;
1356
1357         } else {
1358                 crtc_resp->mode_valid = 0;
1359         }
1360
1361 out:
1362         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1363         return ret;
1364 }
1365
1366 /**
1367  * drm_mode_getconnector - get connector configuration
1368  * @inode: inode from the ioctl
1369  * @filp: file * from the ioctl
1370  * @cmd: cmd from ioctl
1371  * @arg: arg from ioctl
1372  *
1373  * LOCKING:
1374  * Takes mode config lock.
1375  *
1376  * Construct a connector configuration structure to return to the user.
1377  *
1378  * Called by the user via ioctl.
1379  *
1380  * RETURNS:
1381  * Zero on success, errno on failure.
1382  */
1383 int drm_mode_getconnector(struct drm_device *dev, void *data,
1384                           struct drm_file *file_priv)
1385 {
1386         struct drm_mode_get_connector *out_resp = data;
1387         struct drm_mode_object *obj;
1388         struct drm_connector *connector;
1389         struct drm_display_mode *mode;
1390         int mode_count = 0;
1391         int props_count = 0;
1392         int encoders_count = 0;
1393         int ret = 0;
1394         int copied = 0;
1395         int i;
1396         struct drm_mode_modeinfo u_mode;
1397         struct drm_mode_modeinfo __user *mode_ptr;
1398         uint32_t *prop_ptr;
1399         uint64_t *prop_values;
1400         uint32_t *encoder_ptr;
1401
1402         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1403                 return (EINVAL);
1404
1405         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1406
1407         DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1408
1409         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1410
1411         obj = drm_mode_object_find(dev, out_resp->connector_id,
1412                                    DRM_MODE_OBJECT_CONNECTOR);
1413         if (!obj) {
1414                 ret = EINVAL;
1415                 goto out;
1416         }
1417         connector = obj_to_connector(obj);
1418
1419         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1420                 if (connector->property_ids[i] != 0) {
1421                         props_count++;
1422                 }
1423         }
1424
1425         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1426                 if (connector->encoder_ids[i] != 0) {
1427                         encoders_count++;
1428                 }
1429         }
1430
1431         if (out_resp->count_modes == 0) {
1432                 connector->funcs->fill_modes(connector,
1433                                              dev->mode_config.max_width,
1434                                              dev->mode_config.max_height);
1435         }
1436
1437         /* delayed so we get modes regardless of pre-fill_modes state */
1438         list_for_each_entry(mode, &connector->modes, head)
1439                 mode_count++;
1440
1441         out_resp->connector_id = connector->base.id;
1442         out_resp->connector_type = connector->connector_type;
1443         out_resp->connector_type_id = connector->connector_type_id;
1444         out_resp->mm_width = connector->display_info.width_mm;
1445         out_resp->mm_height = connector->display_info.height_mm;
1446         out_resp->subpixel = connector->display_info.subpixel_order;
1447         out_resp->connection = connector->status;
1448         if (connector->encoder)
1449                 out_resp->encoder_id = connector->encoder->base.id;
1450         else
1451                 out_resp->encoder_id = 0;
1452
1453         /*
1454          * This ioctl is called twice, once to determine how much space is
1455          * needed, and the 2nd time to fill it.
1456          */
1457         if ((out_resp->count_modes >= mode_count) && mode_count) {
1458                 copied = 0;
1459                 mode_ptr = (struct drm_mode_modeinfo *)(uintptr_t)out_resp->modes_ptr;
1460                 list_for_each_entry(mode, &connector->modes, head) {
1461                         drm_crtc_convert_to_umode(&u_mode, mode);
1462                         if (copyout(&u_mode, mode_ptr + copied,
1463                             sizeof(u_mode))) {
1464                                 ret = EFAULT;
1465                                 goto out;
1466                         }
1467                         copied++;
1468                 }
1469         }
1470         out_resp->count_modes = mode_count;
1471
1472         if ((out_resp->count_props >= props_count) && props_count) {
1473                 copied = 0;
1474                 prop_ptr = (uint32_t *)(uintptr_t)(out_resp->props_ptr);
1475                 prop_values = (uint64_t *)(uintptr_t)(out_resp->prop_values_ptr);
1476                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1477                         if (connector->property_ids[i] != 0) {
1478                                 if (copyout(&connector->property_ids[i],
1479                                     prop_ptr + copied, sizeof(uint32_t))) {
1480                                         ret = EFAULT;
1481                                         goto out;
1482                                 }
1483
1484                                 if (copyout(&connector->property_values[i],
1485                                     prop_values + copied, sizeof(uint64_t))) {
1486                                         ret = EFAULT;
1487                                         goto out;
1488                                 }
1489                                 copied++;
1490                         }
1491                 }
1492         }
1493         out_resp->count_props = props_count;
1494
1495         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1496                 copied = 0;
1497                 encoder_ptr = (uint32_t *)(uintptr_t)(out_resp->encoders_ptr);
1498                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1499                         if (connector->encoder_ids[i] != 0) {
1500                                 if (copyout(&connector->encoder_ids[i],
1501                                     encoder_ptr + copied, sizeof(uint32_t))) {
1502                                         ret = EFAULT;
1503                                         goto out;
1504                                 }
1505                                 copied++;
1506                         }
1507                 }
1508         }
1509         out_resp->count_encoders = encoders_count;
1510
1511 out:
1512         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1513         return ret;
1514 }
1515
1516 int drm_mode_getencoder(struct drm_device *dev, void *data,
1517                         struct drm_file *file_priv)
1518 {
1519         struct drm_mode_get_encoder *enc_resp = data;
1520         struct drm_mode_object *obj;
1521         struct drm_encoder *encoder;
1522         int ret = 0;
1523
1524         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1525                 return (EINVAL);
1526
1527         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1528         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1529                                    DRM_MODE_OBJECT_ENCODER);
1530         if (!obj) {
1531                 ret = EINVAL;
1532                 goto out;
1533         }
1534         encoder = obj_to_encoder(obj);
1535
1536         if (encoder->crtc)
1537                 enc_resp->crtc_id = encoder->crtc->base.id;
1538         else
1539                 enc_resp->crtc_id = 0;
1540         enc_resp->encoder_type = encoder->encoder_type;
1541         enc_resp->encoder_id = encoder->base.id;
1542         enc_resp->possible_crtcs = encoder->possible_crtcs;
1543         enc_resp->possible_clones = encoder->possible_clones;
1544
1545 out:
1546         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1547         return ret;
1548 }
1549
1550 /**
1551  * drm_mode_getplane_res - get plane info
1552  * @dev: DRM device
1553  * @data: ioctl data
1554  * @file_priv: DRM file info
1555  *
1556  * LOCKING:
1557  * Takes mode config lock.
1558  *
1559  * Return an plane count and set of IDs.
1560  */
1561 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1562                             struct drm_file *file_priv)
1563 {
1564         struct drm_mode_get_plane_res *plane_resp = data;
1565         struct drm_mode_config *config;
1566         struct drm_plane *plane;
1567         uint32_t *plane_ptr;
1568         int copied = 0, ret = 0;
1569
1570         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1571                 return (EINVAL);
1572
1573         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1574         config = &dev->mode_config;
1575
1576         /*
1577          * This ioctl is called twice, once to determine how much space is
1578          * needed, and the 2nd time to fill it.
1579          */
1580         if (config->num_plane &&
1581             (plane_resp->count_planes >= config->num_plane)) {
1582                 plane_ptr = (uint32_t *)(unsigned long)plane_resp->plane_id_ptr;
1583
1584                 list_for_each_entry(plane, &config->plane_list, head) {
1585                         if (copyout(&plane->base.id, plane_ptr + copied,
1586                             sizeof(uint32_t))) {
1587                                 ret = EFAULT;
1588                                 goto out;
1589                         }
1590                         copied++;
1591                 }
1592         }
1593         plane_resp->count_planes = config->num_plane;
1594
1595 out:
1596         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1597         return ret;
1598 }
1599
1600 /**
1601  * drm_mode_getplane - get plane info
1602  * @dev: DRM device
1603  * @data: ioctl data
1604  * @file_priv: DRM file info
1605  *
1606  * LOCKING:
1607  * Takes mode config lock.
1608  *
1609  * Return plane info, including formats supported, gamma size, any
1610  * current fb, etc.
1611  */
1612 int drm_mode_getplane(struct drm_device *dev, void *data,
1613                         struct drm_file *file_priv)
1614 {
1615         struct drm_mode_get_plane *plane_resp = data;
1616         struct drm_mode_object *obj;
1617         struct drm_plane *plane;
1618         uint32_t *format_ptr;
1619         int ret = 0;
1620
1621         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1622                 return (EINVAL);
1623
1624         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1625         obj = drm_mode_object_find(dev, plane_resp->plane_id,
1626                                    DRM_MODE_OBJECT_PLANE);
1627         if (!obj) {
1628                 ret = ENOENT;
1629                 goto out;
1630         }
1631         plane = obj_to_plane(obj);
1632
1633         if (plane->crtc)
1634                 plane_resp->crtc_id = plane->crtc->base.id;
1635         else
1636                 plane_resp->crtc_id = 0;
1637
1638         if (plane->fb)
1639                 plane_resp->fb_id = plane->fb->base.id;
1640         else
1641                 plane_resp->fb_id = 0;
1642
1643         plane_resp->plane_id = plane->base.id;
1644         plane_resp->possible_crtcs = plane->possible_crtcs;
1645         plane_resp->gamma_size = plane->gamma_size;
1646
1647         /*
1648          * This ioctl is called twice, once to determine how much space is
1649          * needed, and the 2nd time to fill it.
1650          */
1651         if (plane->format_count &&
1652             (plane_resp->count_format_types >= plane->format_count)) {
1653                 format_ptr = (uint32_t *)(unsigned long)plane_resp->format_type_ptr;
1654                 if (copyout(format_ptr,
1655                                  plane->format_types,
1656                                  sizeof(uint32_t) * plane->format_count)) {
1657                         ret = EFAULT;
1658                         goto out;
1659                 }
1660         }
1661         plane_resp->count_format_types = plane->format_count;
1662
1663 out:
1664         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1665         return ret;
1666 }
1667
1668 /**
1669  * drm_mode_setplane - set up or tear down an plane
1670  * @dev: DRM device
1671  * @data: ioctl data*
1672  * @file_prive: DRM file info
1673  *
1674  * LOCKING:
1675  * Takes mode config lock.
1676  *
1677  * Set plane info, including placement, fb, scaling, and other factors.
1678  * Or pass a NULL fb to disable.
1679  */
1680 int drm_mode_setplane(struct drm_device *dev, void *data,
1681                         struct drm_file *file_priv)
1682 {
1683         struct drm_mode_set_plane *plane_req = data;
1684         struct drm_mode_object *obj;
1685         struct drm_plane *plane;
1686         struct drm_crtc *crtc;
1687         struct drm_framebuffer *fb;
1688         int ret = 0;
1689         unsigned int fb_width, fb_height;
1690         int i;
1691
1692         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1693                 return (EINVAL);
1694
1695         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1696
1697         /*
1698          * First, find the plane, crtc, and fb objects.  If not available,
1699          * we don't bother to call the driver.
1700          */
1701         obj = drm_mode_object_find(dev, plane_req->plane_id,
1702                                    DRM_MODE_OBJECT_PLANE);
1703         if (!obj) {
1704                 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1705                               plane_req->plane_id);
1706                 ret = ENOENT;
1707                 goto out;
1708         }
1709         plane = obj_to_plane(obj);
1710
1711         /* No fb means shut it down */
1712         if (!plane_req->fb_id) {
1713                 plane->funcs->disable_plane(plane);
1714                 plane->crtc = NULL;
1715                 plane->fb = NULL;
1716                 goto out;
1717         }
1718
1719         obj = drm_mode_object_find(dev, plane_req->crtc_id,
1720                                    DRM_MODE_OBJECT_CRTC);
1721         if (!obj) {
1722                 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1723                               plane_req->crtc_id);
1724                 ret = ENOENT;
1725                 goto out;
1726         }
1727         crtc = obj_to_crtc(obj);
1728
1729         obj = drm_mode_object_find(dev, plane_req->fb_id,
1730                                    DRM_MODE_OBJECT_FB);
1731         if (!obj) {
1732                 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1733                               plane_req->fb_id);
1734                 ret = ENOENT;
1735                 goto out;
1736         }
1737         fb = obj_to_fb(obj);
1738
1739         /* Check whether this plane supports the fb pixel format. */
1740         for (i = 0; i < plane->format_count; i++)
1741                 if (fb->pixel_format == plane->format_types[i])
1742                         break;
1743         if (i == plane->format_count) {
1744                 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1745                 ret = EINVAL;
1746                 goto out;
1747         }
1748
1749         fb_width = fb->width << 16;
1750         fb_height = fb->height << 16;
1751
1752         /* Make sure source coordinates are inside the fb. */
1753         if (plane_req->src_w > fb_width ||
1754             plane_req->src_x > fb_width - plane_req->src_w ||
1755             plane_req->src_h > fb_height ||
1756             plane_req->src_y > fb_height - plane_req->src_h) {
1757                 DRM_DEBUG_KMS("Invalid source coordinates "
1758                               "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1759                               plane_req->src_w >> 16,
1760                               ((plane_req->src_w & 0xffff) * 15625) >> 10,
1761                               plane_req->src_h >> 16,
1762                               ((plane_req->src_h & 0xffff) * 15625) >> 10,
1763                               plane_req->src_x >> 16,
1764                               ((plane_req->src_x & 0xffff) * 15625) >> 10,
1765                               plane_req->src_y >> 16,
1766                               ((plane_req->src_y & 0xffff) * 15625) >> 10);
1767                 ret = ENOSPC;
1768                 goto out;
1769         }
1770
1771         /* Give drivers some help against integer overflows */
1772         if (plane_req->crtc_w > INT_MAX ||
1773             plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1774             plane_req->crtc_h > INT_MAX ||
1775             plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1776                 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1777                               plane_req->crtc_w, plane_req->crtc_h,
1778                               plane_req->crtc_x, plane_req->crtc_y);
1779                 ret = ERANGE;
1780                 goto out;
1781         }
1782
1783         ret = -plane->funcs->update_plane(plane, crtc, fb,
1784                                          plane_req->crtc_x, plane_req->crtc_y,
1785                                          plane_req->crtc_w, plane_req->crtc_h,
1786                                          plane_req->src_x, plane_req->src_y,
1787                                          plane_req->src_w, plane_req->src_h);
1788         if (!ret) {
1789                 plane->crtc = crtc;
1790                 plane->fb = fb;
1791         }
1792
1793 out:
1794         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1795
1796         return ret;
1797 }
1798
1799 /**
1800  * drm_mode_setcrtc - set CRTC configuration
1801  * @inode: inode from the ioctl
1802  * @filp: file * from the ioctl
1803  * @cmd: cmd from ioctl
1804  * @arg: arg from ioctl
1805  *
1806  * LOCKING:
1807  * Takes mode config lock.
1808  *
1809  * Build a new CRTC configuration based on user request.
1810  *
1811  * Called by the user via ioctl.
1812  *
1813  * RETURNS:
1814  * Zero on success, errno on failure.
1815  */
1816 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1817                      struct drm_file *file_priv)
1818 {
1819         struct drm_mode_config *config = &dev->mode_config;
1820         struct drm_mode_crtc *crtc_req = data;
1821         struct drm_mode_object *obj;
1822         struct drm_crtc *crtc;
1823         struct drm_connector **connector_set = NULL, *connector;
1824         struct drm_framebuffer *fb = NULL;
1825         struct drm_display_mode *mode = NULL;
1826         struct drm_mode_set set;
1827         uint32_t *set_connectors_ptr;
1828         int ret = 0;
1829         int i;
1830
1831         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1832                 return (EINVAL);
1833
1834         /* For some reason crtc x/y offsets are signed internally. */
1835         if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1836                 return (ERANGE);
1837
1838         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1839         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1840                                    DRM_MODE_OBJECT_CRTC);
1841         if (!obj) {
1842                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1843                 ret = EINVAL;
1844                 goto out;
1845         }
1846         crtc = obj_to_crtc(obj);
1847         DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1848
1849         if (crtc_req->mode_valid) {
1850                 /* If we have a mode we need a framebuffer. */
1851                 /* If we pass -1, set the mode with the currently bound fb */
1852                 if (crtc_req->fb_id == -1) {
1853                         if (!crtc->fb) {
1854                                 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
1855                                 ret = -EINVAL;
1856                                 goto out;
1857                         }
1858                         fb = crtc->fb;
1859                 } else {
1860                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1861                                                    DRM_MODE_OBJECT_FB);
1862                         if (!obj) {
1863                                 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1864                                                 crtc_req->fb_id);
1865                                 ret = EINVAL;
1866                                 goto out;
1867                         }
1868                         fb = obj_to_fb(obj);
1869                 }
1870
1871                 mode = drm_mode_create(dev);
1872                 if (!mode) {
1873                         ret = ENOMEM;
1874                         goto out;
1875                 }
1876
1877                 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
1878                 if (ret) {
1879                         DRM_DEBUG_KMS("Invalid mode\n");
1880                         goto out;
1881                 }
1882
1883                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1884
1885                 if (mode->hdisplay > fb->width ||
1886                     mode->vdisplay > fb->height ||
1887                     crtc_req->x > fb->width - mode->hdisplay ||
1888                     crtc_req->y > fb->height - mode->vdisplay) {
1889                         DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n",
1890                                       mode->hdisplay, mode->vdisplay,
1891                                       crtc_req->x, crtc_req->y,
1892                                       fb->width, fb->height);
1893                         ret = ENOSPC;
1894                         goto out;
1895                 }
1896         }
1897
1898         if (crtc_req->count_connectors == 0 && mode) {
1899                 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1900                 ret = EINVAL;
1901                 goto out;
1902         }
1903
1904         if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1905                 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1906                           crtc_req->count_connectors);
1907                 ret = EINVAL;
1908                 goto out;
1909         }
1910
1911         if (crtc_req->count_connectors > 0) {
1912                 u32 out_id;
1913
1914                 /* Avoid unbounded kernel memory allocation */
1915                 if (crtc_req->count_connectors > config->num_connector) {
1916                         ret = EINVAL;
1917                         goto out;
1918                 }
1919
1920                 connector_set = kmalloc(crtc_req->count_connectors *
1921                     sizeof(struct drm_connector *), DRM_MEM_KMS, M_WAITOK);
1922
1923                 for (i = 0; i < crtc_req->count_connectors; i++) {
1924                         set_connectors_ptr = (uint32_t *)(uintptr_t)crtc_req->set_connectors_ptr;
1925                         if (copyin(&set_connectors_ptr[i], &out_id, sizeof(uint32_t))) {
1926                                 ret = EFAULT;
1927                                 goto out;
1928                         }
1929
1930                         obj = drm_mode_object_find(dev, out_id,
1931                                                    DRM_MODE_OBJECT_CONNECTOR);
1932                         if (!obj) {
1933                                 DRM_DEBUG_KMS("Connector id %d unknown\n",
1934                                                 out_id);
1935                                 ret = EINVAL;
1936                                 goto out;
1937                         }
1938                         connector = obj_to_connector(obj);
1939                         DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1940                                         connector->base.id,
1941                                         drm_get_connector_name(connector));
1942
1943                         connector_set[i] = connector;
1944                 }
1945         }
1946
1947         set.crtc = crtc;
1948         set.x = crtc_req->x;
1949         set.y = crtc_req->y;
1950         set.mode = mode;
1951         set.connectors = connector_set;
1952         set.num_connectors = crtc_req->count_connectors;
1953         set.fb = fb;
1954         ret = crtc->funcs->set_config(&set);
1955
1956 out:
1957         drm_free(connector_set, DRM_MEM_KMS);
1958         drm_mode_destroy(dev, mode);
1959         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
1960         return ret;
1961 }
1962
1963 int drm_mode_cursor_ioctl(struct drm_device *dev,
1964                         void *data, struct drm_file *file_priv)
1965 {
1966         struct drm_mode_cursor *req = data;
1967         struct drm_mode_object *obj;
1968         struct drm_crtc *crtc;
1969         int ret = 0;
1970
1971         if (!drm_core_check_feature(dev, DRIVER_MODESET))
1972                 return (EINVAL);
1973
1974         if (!req->flags)
1975                 return (EINVAL);
1976
1977         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
1978         obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1979         if (!obj) {
1980                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1981                 ret = EINVAL;
1982                 goto out;
1983         }
1984         crtc = obj_to_crtc(obj);
1985
1986         if (req->flags & DRM_MODE_CURSOR_BO) {
1987                 if (!crtc->funcs->cursor_set) {
1988                         ret = ENXIO;
1989                         goto out;
1990                 }
1991                 /* Turns off the cursor if handle is 0 */
1992                 ret = -crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1993                                               req->width, req->height);
1994         }
1995
1996         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1997                 if (crtc->funcs->cursor_move) {
1998                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1999                 } else {
2000                         ret = EFAULT;
2001                         goto out;
2002                 }
2003         }
2004 out:
2005         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2006         return ret;
2007 }
2008
2009 /* Original addfb only supported RGB formats, so figure out which one */
2010 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2011 {
2012         uint32_t fmt;
2013
2014         switch (bpp) {
2015         case 8:
2016                 fmt = DRM_FORMAT_RGB332;
2017                 break;
2018         case 16:
2019                 if (depth == 15)
2020                         fmt = DRM_FORMAT_XRGB1555;
2021                 else
2022                         fmt = DRM_FORMAT_RGB565;
2023                 break;
2024         case 24:
2025                 fmt = DRM_FORMAT_RGB888;
2026                 break;
2027         case 32:
2028                 if (depth == 24)
2029                         fmt = DRM_FORMAT_XRGB8888;
2030                 else if (depth == 30)
2031                         fmt = DRM_FORMAT_XRGB2101010;
2032                 else
2033                         fmt = DRM_FORMAT_ARGB8888;
2034                 break;
2035         default:
2036                 DRM_ERROR("bad bpp, assuming RGB24 pixel format\n");
2037                 fmt = DRM_FORMAT_XRGB8888;
2038                 break;
2039         }
2040
2041         return fmt;
2042 }
2043
2044 /**
2045  * drm_mode_addfb - add an FB to the graphics configuration
2046  * @inode: inode from the ioctl
2047  * @filp: file * from the ioctl
2048  * @cmd: cmd from ioctl
2049  * @arg: arg from ioctl
2050  *
2051  * LOCKING:
2052  * Takes mode config lock.
2053  *
2054  * Add a new FB to the specified CRTC, given a user request.
2055  *
2056  * Called by the user via ioctl.
2057  *
2058  * RETURNS:
2059  * Zero on success, errno on failure.
2060  */
2061 int drm_mode_addfb(struct drm_device *dev,
2062                    void *data, struct drm_file *file_priv)
2063 {
2064         struct drm_mode_fb_cmd *or = data;
2065         struct drm_mode_fb_cmd2 r = {};
2066         struct drm_mode_config *config = &dev->mode_config;
2067         struct drm_framebuffer *fb;
2068         int ret = 0;
2069
2070         /* Use new struct with format internally */
2071         r.fb_id = or->fb_id;
2072         r.width = or->width;
2073         r.height = or->height;
2074         r.pitches[0] = or->pitch;
2075         r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2076         r.handles[0] = or->handle;
2077
2078         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2079                 return (EINVAL);
2080
2081         if ((config->min_width > r.width) || (r.width > config->max_width))
2082                 return (EINVAL);
2083         if ((config->min_height > r.height) || (r.height > config->max_height))
2084                 return (EINVAL);
2085
2086         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2087
2088         ret = -dev->mode_config.funcs->fb_create(dev, file_priv, &r, &fb);
2089         if (ret != 0) {
2090                 DRM_ERROR("could not create framebuffer, error %d\n", ret);
2091                 goto out;
2092         }
2093
2094         or->fb_id = fb->base.id;
2095         list_add(&fb->filp_head, &file_priv->fbs);
2096         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2097
2098 out:
2099         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2100         return ret;
2101 }
2102
2103 static int format_check(struct drm_mode_fb_cmd2 *r)
2104 {
2105         uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2106
2107         switch (format) {
2108         case DRM_FORMAT_C8:
2109         case DRM_FORMAT_RGB332:
2110         case DRM_FORMAT_BGR233:
2111         case DRM_FORMAT_XRGB4444:
2112         case DRM_FORMAT_XBGR4444:
2113         case DRM_FORMAT_RGBX4444:
2114         case DRM_FORMAT_BGRX4444:
2115         case DRM_FORMAT_ARGB4444:
2116         case DRM_FORMAT_ABGR4444:
2117         case DRM_FORMAT_RGBA4444:
2118         case DRM_FORMAT_BGRA4444:
2119         case DRM_FORMAT_XRGB1555:
2120         case DRM_FORMAT_XBGR1555:
2121         case DRM_FORMAT_RGBX5551:
2122         case DRM_FORMAT_BGRX5551:
2123         case DRM_FORMAT_ARGB1555:
2124         case DRM_FORMAT_ABGR1555:
2125         case DRM_FORMAT_RGBA5551:
2126         case DRM_FORMAT_BGRA5551:
2127         case DRM_FORMAT_RGB565:
2128         case DRM_FORMAT_BGR565:
2129         case DRM_FORMAT_RGB888:
2130         case DRM_FORMAT_BGR888:
2131         case DRM_FORMAT_XRGB8888:
2132         case DRM_FORMAT_XBGR8888:
2133         case DRM_FORMAT_RGBX8888:
2134         case DRM_FORMAT_BGRX8888:
2135         case DRM_FORMAT_ARGB8888:
2136         case DRM_FORMAT_ABGR8888:
2137         case DRM_FORMAT_RGBA8888:
2138         case DRM_FORMAT_BGRA8888:
2139         case DRM_FORMAT_XRGB2101010:
2140         case DRM_FORMAT_XBGR2101010:
2141         case DRM_FORMAT_RGBX1010102:
2142         case DRM_FORMAT_BGRX1010102:
2143         case DRM_FORMAT_ARGB2101010:
2144         case DRM_FORMAT_ABGR2101010:
2145         case DRM_FORMAT_RGBA1010102:
2146         case DRM_FORMAT_BGRA1010102:
2147         case DRM_FORMAT_YUYV:
2148         case DRM_FORMAT_YVYU:
2149         case DRM_FORMAT_UYVY:
2150         case DRM_FORMAT_VYUY:
2151         case DRM_FORMAT_AYUV:
2152         case DRM_FORMAT_NV12:
2153         case DRM_FORMAT_NV21:
2154         case DRM_FORMAT_NV16:
2155         case DRM_FORMAT_NV61:
2156         case DRM_FORMAT_YUV410:
2157         case DRM_FORMAT_YVU410:
2158         case DRM_FORMAT_YUV411:
2159         case DRM_FORMAT_YVU411:
2160         case DRM_FORMAT_YUV420:
2161         case DRM_FORMAT_YVU420:
2162         case DRM_FORMAT_YUV422:
2163         case DRM_FORMAT_YVU422:
2164         case DRM_FORMAT_YUV444:
2165         case DRM_FORMAT_YVU444:
2166                 return 0;
2167         default:
2168                 return (EINVAL);
2169         }
2170 }
2171
2172 /**
2173  * drm_mode_addfb2 - add an FB to the graphics configuration
2174  * @inode: inode from the ioctl
2175  * @filp: file * from the ioctl
2176  * @cmd: cmd from ioctl
2177  * @arg: arg from ioctl
2178  *
2179  * LOCKING:
2180  * Takes mode config lock.
2181  *
2182  * Add a new FB to the specified CRTC, given a user request with format.
2183  *
2184  * Called by the user via ioctl.
2185  *
2186  * RETURNS:
2187  * Zero on success, errno on failure.
2188  */
2189 int drm_mode_addfb2(struct drm_device *dev,
2190                     void *data, struct drm_file *file_priv)
2191 {
2192         struct drm_mode_fb_cmd2 *r = data;
2193         struct drm_mode_config *config = &dev->mode_config;
2194         struct drm_framebuffer *fb;
2195         int ret = 0;
2196
2197         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2198                 return (EINVAL);
2199
2200         if ((config->min_width > r->width) || (r->width > config->max_width)) {
2201                 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2202                           r->width, config->min_width, config->max_width);
2203                 return (EINVAL);
2204         }
2205         if ((config->min_height > r->height) || (r->height > config->max_height)) {
2206                 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2207                           r->height, config->min_height, config->max_height);
2208                 return (EINVAL);
2209         }
2210
2211         ret = format_check(r);
2212         if (ret) {
2213                 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2214                 return ret;
2215         }
2216
2217         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2218
2219         /* TODO check buffer is sufficiently large */
2220         /* TODO setup destructor callback */
2221
2222         ret = -dev->mode_config.funcs->fb_create(dev, file_priv, r, &fb);
2223         if (ret != 0) {
2224                 DRM_ERROR("could not create framebuffer, error %d\n", ret);
2225                 goto out;
2226         }
2227
2228         r->fb_id = fb->base.id;
2229         list_add(&fb->filp_head, &file_priv->fbs);
2230         DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2231
2232 out:
2233         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2234         return (ret);
2235 }
2236
2237 /**
2238  * drm_mode_rmfb - remove an FB from the configuration
2239  * @inode: inode from the ioctl
2240  * @filp: file * from the ioctl
2241  * @cmd: cmd from ioctl
2242  * @arg: arg from ioctl
2243  *
2244  * LOCKING:
2245  * Takes mode config lock.
2246  *
2247  * Remove the FB specified by the user.
2248  *
2249  * Called by the user via ioctl.
2250  *
2251  * RETURNS:
2252  * Zero on success, errno on failure.
2253  */
2254 int drm_mode_rmfb(struct drm_device *dev,
2255                    void *data, struct drm_file *file_priv)
2256 {
2257         struct drm_mode_object *obj;
2258         struct drm_framebuffer *fb = NULL;
2259         struct drm_framebuffer *fbl = NULL;
2260         uint32_t *id = data;
2261         int ret = 0;
2262         int found = 0;
2263
2264         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2265                 return (EINVAL);
2266
2267         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2268         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
2269         /* TODO check that we really get a framebuffer back. */
2270         if (!obj) {
2271                 ret = EINVAL;
2272                 goto out;
2273         }
2274         fb = obj_to_fb(obj);
2275
2276         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2277                 if (fb == fbl)
2278                         found = 1;
2279
2280         if (!found) {
2281                 ret = EINVAL;
2282                 goto out;
2283         }
2284
2285         /* TODO release all crtc connected to the framebuffer */
2286         /* TODO unhock the destructor from the buffer object */
2287
2288         list_del(&fb->filp_head);
2289         fb->funcs->destroy(fb);
2290
2291 out:
2292         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2293         return ret;
2294 }
2295
2296 /**
2297  * drm_mode_getfb - get FB info
2298  * @inode: inode from the ioctl
2299  * @filp: file * from the ioctl
2300  * @cmd: cmd from ioctl
2301  * @arg: arg from ioctl
2302  *
2303  * LOCKING:
2304  * Takes mode config lock.
2305  *
2306  * Lookup the FB given its ID and return info about it.
2307  *
2308  * Called by the user via ioctl.
2309  *
2310  * RETURNS:
2311  * Zero on success, errno on failure.
2312  */
2313 int drm_mode_getfb(struct drm_device *dev,
2314                    void *data, struct drm_file *file_priv)
2315 {
2316         struct drm_mode_fb_cmd *r = data;
2317         struct drm_mode_object *obj;
2318         struct drm_framebuffer *fb;
2319         int ret = 0;
2320
2321         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2322                 return (EINVAL);
2323
2324         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2325         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2326         if (!obj) {
2327                 ret = EINVAL;
2328                 goto out;
2329         }
2330         fb = obj_to_fb(obj);
2331
2332         r->height = fb->height;
2333         r->width = fb->width;
2334         r->depth = fb->depth;
2335         r->bpp = fb->bits_per_pixel;
2336         r->pitch = fb->pitches[0];
2337         fb->funcs->create_handle(fb, file_priv, &r->handle);
2338
2339 out:
2340         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2341         return ret;
2342 }
2343
2344 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2345                            void *data, struct drm_file *file_priv)
2346 {
2347         struct drm_clip_rect __user *clips_ptr;
2348         struct drm_clip_rect *clips = NULL;
2349         struct drm_mode_fb_dirty_cmd *r = data;
2350         struct drm_mode_object *obj;
2351         struct drm_framebuffer *fb;
2352         unsigned flags;
2353         int num_clips;
2354         int ret = 0;
2355
2356         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2357                 return (EINVAL);
2358
2359         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2360         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2361         if (!obj) {
2362                 ret = EINVAL;
2363                 goto out_err1;
2364         }
2365         fb = obj_to_fb(obj);
2366
2367         num_clips = r->num_clips;
2368         clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
2369
2370         if (!num_clips != !clips_ptr) {
2371                 ret = EINVAL;
2372                 goto out_err1;
2373         }
2374
2375         flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2376
2377         /* If userspace annotates copy, clips must come in pairs */
2378         if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2379                 ret = EINVAL;
2380                 goto out_err1;
2381         }
2382
2383         if (num_clips && clips_ptr) {
2384                 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2385                         ret = EINVAL;
2386                         goto out_err1;
2387                 }
2388                 clips = kmalloc(num_clips * sizeof(*clips), DRM_MEM_KMS,
2389                     M_WAITOK | M_ZERO);
2390
2391                 ret = copyin(clips_ptr, clips, num_clips * sizeof(*clips));
2392                 if (ret)
2393                         goto out_err2;
2394         }
2395
2396         if (fb->funcs->dirty) {
2397                 ret = -fb->funcs->dirty(fb, file_priv, flags, r->color,
2398                                        clips, num_clips);
2399         } else {
2400                 ret = ENOSYS;
2401                 goto out_err2;
2402         }
2403
2404 out_err2:
2405         drm_free(clips, DRM_MEM_KMS);
2406 out_err1:
2407         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2408         return ret;
2409 }
2410
2411
2412 /**
2413  * drm_fb_release - remove and free the FBs on this file
2414  * @filp: file * from the ioctl
2415  *
2416  * LOCKING:
2417  * Takes mode config lock.
2418  *
2419  * Destroy all the FBs associated with @filp.
2420  *
2421  * Called by the user via ioctl.
2422  *
2423  * RETURNS:
2424  * Zero on success, errno on failure.
2425  */
2426 void drm_fb_release(struct drm_file *priv)
2427 {
2428 #if 1
2429         struct drm_device *dev = priv->dev;
2430 #else
2431         struct drm_device *dev = priv->minor->dev;
2432 #endif
2433         struct drm_framebuffer *fb, *tfb;
2434
2435         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2436         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2437                 list_del(&fb->filp_head);
2438                 fb->funcs->destroy(fb);
2439         }
2440         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2441 }
2442
2443 /**
2444  * drm_mode_attachmode - add a mode to the user mode list
2445  * @dev: DRM device
2446  * @connector: connector to add the mode to
2447  * @mode: mode to add
2448  *
2449  * Add @mode to @connector's user mode list.
2450  */
2451 static void drm_mode_attachmode(struct drm_device *dev,
2452                                 struct drm_connector *connector,
2453                                 struct drm_display_mode *mode)
2454 {
2455         list_add_tail(&mode->head, &connector->user_modes);
2456 }
2457
2458 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2459                              const struct drm_display_mode *mode)
2460 {
2461         struct drm_connector *connector;
2462         int ret = 0;
2463         struct drm_display_mode *dup_mode, *next;
2464         LINUX_LIST_HEAD(list);
2465
2466         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2467                 if (!connector->encoder)
2468                         continue;
2469                 if (connector->encoder->crtc == crtc) {
2470                         dup_mode = drm_mode_duplicate(dev, mode);
2471                         if (!dup_mode) {
2472                                 ret = ENOMEM;
2473                                 goto out;
2474                         }
2475                         list_add_tail(&dup_mode->head, &list);
2476                 }
2477         }
2478
2479         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2480                 if (!connector->encoder)
2481                         continue;
2482                 if (connector->encoder->crtc == crtc)
2483                         list_move_tail(list.next, &connector->user_modes);
2484         }
2485
2486         KASSERT(!list_empty(&list), ("list empty"));
2487
2488  out:
2489         list_for_each_entry_safe(dup_mode, next, &list, head)
2490                 drm_mode_destroy(dev, dup_mode);
2491
2492         return ret;
2493 }
2494
2495 static int drm_mode_detachmode(struct drm_device *dev,
2496                                struct drm_connector *connector,
2497                                struct drm_display_mode *mode)
2498 {
2499         int found = 0;
2500         int ret = 0;
2501         struct drm_display_mode *match_mode, *t;
2502
2503         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2504                 if (drm_mode_equal(match_mode, mode)) {
2505                         list_del(&match_mode->head);
2506                         drm_mode_destroy(dev, match_mode);
2507                         found = 1;
2508                         break;
2509                 }
2510         }
2511
2512         if (!found)
2513                 ret = -EINVAL;
2514
2515         return ret;
2516 }
2517
2518 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2519 {
2520         struct drm_connector *connector;
2521
2522         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2523                 drm_mode_detachmode(dev, connector, mode);
2524         }
2525         return 0;
2526 }
2527
2528 /**
2529  * drm_fb_attachmode - Attach a user mode to an connector
2530  * @inode: inode from the ioctl
2531  * @filp: file * from the ioctl
2532  * @cmd: cmd from ioctl
2533  * @arg: arg from ioctl
2534  *
2535  * This attaches a user specified mode to an connector.
2536  * Called by the user via ioctl.
2537  *
2538  * RETURNS:
2539  * Zero on success, errno on failure.
2540  */
2541 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2542                               void *data, struct drm_file *file_priv)
2543 {
2544         struct drm_mode_mode_cmd *mode_cmd = data;
2545         struct drm_connector *connector;
2546         struct drm_display_mode *mode;
2547         struct drm_mode_object *obj;
2548         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2549         int ret = 0;
2550
2551         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2552                 return -EINVAL;
2553
2554         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2555
2556         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2557         if (!obj) {
2558                 ret = -EINVAL;
2559                 goto out;
2560         }
2561         connector = obj_to_connector(obj);
2562
2563         mode = drm_mode_create(dev);
2564         if (!mode) {
2565                 ret = -ENOMEM;
2566                 goto out;
2567         }
2568
2569         ret = drm_crtc_convert_umode(mode, umode);
2570         if (ret) {
2571                 DRM_DEBUG_KMS("Invalid mode\n");
2572                 drm_mode_destroy(dev, mode);
2573                 goto out;
2574         }
2575
2576         drm_mode_attachmode(dev, connector, mode);
2577 out:
2578         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2579         return ret;
2580 }
2581
2582
2583 /**
2584  * drm_fb_detachmode - Detach a user specified mode from an connector
2585  * @inode: inode from the ioctl
2586  * @filp: file * from the ioctl
2587  * @cmd: cmd from ioctl
2588  * @arg: arg from ioctl
2589  *
2590  * Called by the user via ioctl.
2591  *
2592  * RETURNS:
2593  * Zero on success, errno on failure.
2594  */
2595 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2596                               void *data, struct drm_file *file_priv)
2597 {
2598         struct drm_mode_object *obj;
2599         struct drm_mode_mode_cmd *mode_cmd = data;
2600         struct drm_connector *connector;
2601         struct drm_display_mode mode;
2602         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2603         int ret = 0;
2604
2605         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2606                 return -EINVAL;
2607
2608         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2609
2610         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2611         if (!obj) {
2612                 ret = -EINVAL;
2613                 goto out;
2614         }
2615         connector = obj_to_connector(obj);
2616
2617         ret = drm_crtc_convert_umode(&mode, umode);
2618         if (ret) {
2619                 DRM_DEBUG_KMS("Invalid mode\n");
2620                 goto out;
2621         }
2622
2623         ret = drm_mode_detachmode(dev, connector, &mode);
2624 out:
2625         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2626         return ret;
2627 }
2628
2629 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2630                                          const char *name, int num_values)
2631 {
2632         struct drm_property *property = NULL;
2633         int ret;
2634
2635         property = kmalloc(sizeof(struct drm_property), DRM_MEM_KMS,
2636             M_WAITOK | M_ZERO);
2637
2638         if (num_values) {
2639                 property->values = kmalloc(sizeof(uint64_t)*num_values, DRM_MEM_KMS,
2640                     M_WAITOK | M_ZERO);
2641         }
2642
2643         ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2644         if (ret)
2645                 goto fail;
2646         property->flags = flags;
2647         property->num_values = num_values;
2648         INIT_LIST_HEAD(&property->enum_blob_list);
2649
2650         if (name) {
2651                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2652                 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2653         }
2654
2655         list_add_tail(&property->head, &dev->mode_config.property_list);
2656         return property;
2657
2658 fail:
2659         drm_free(property->values, DRM_MEM_KMS);
2660         drm_free(property, DRM_MEM_KMS);
2661         return (NULL);
2662 }
2663
2664 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2665                                          const char *name,
2666                                          const struct drm_prop_enum_list *props,
2667                                          int num_values)
2668 {
2669         struct drm_property *property;
2670         int i, ret;
2671
2672         flags |= DRM_MODE_PROP_ENUM;
2673
2674         property = drm_property_create(dev, flags, name, num_values);
2675         if (!property)
2676                 return NULL;
2677
2678         for (i = 0; i < num_values; i++) {
2679                 ret = drm_property_add_enum(property, i,
2680                                       props[i].type,
2681                                       props[i].name);
2682                 if (ret) {
2683                         drm_property_destroy(dev, property);
2684                         return NULL;
2685                 }
2686         }
2687
2688         return property;
2689 }
2690
2691 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2692                                          const char *name,
2693                                          uint64_t min, uint64_t max)
2694 {
2695         struct drm_property *property;
2696
2697         flags |= DRM_MODE_PROP_RANGE;
2698
2699         property = drm_property_create(dev, flags, name, 2);
2700         if (!property)
2701                 return NULL;
2702
2703         property->values[0] = min;
2704         property->values[1] = max;
2705
2706         return property;
2707 }
2708
2709 int drm_property_add_enum(struct drm_property *property, int index,
2710                           uint64_t value, const char *name)
2711 {
2712         struct drm_property_enum *prop_enum;
2713
2714         if (!(property->flags & DRM_MODE_PROP_ENUM))
2715                 return -EINVAL;
2716
2717         if (!list_empty(&property->enum_blob_list)) {
2718                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2719                         if (prop_enum->value == value) {
2720                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2721                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2722                                 return 0;
2723                         }
2724                 }
2725         }
2726
2727         prop_enum = kmalloc(sizeof(struct drm_property_enum), DRM_MEM_KMS,
2728             M_WAITOK | M_ZERO);
2729
2730         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2731         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2732         prop_enum->value = value;
2733
2734         property->values[index] = value;
2735         list_add_tail(&prop_enum->head, &property->enum_blob_list);
2736         return 0;
2737 }
2738
2739 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2740 {
2741         struct drm_property_enum *prop_enum, *pt;
2742
2743         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2744                 list_del(&prop_enum->head);
2745                 drm_free(prop_enum, DRM_MEM_KMS);
2746         }
2747
2748         if (property->num_values)
2749                 drm_free(property->values, DRM_MEM_KMS);
2750         drm_mode_object_put(dev, &property->base);
2751         list_del(&property->head);
2752         drm_free(property, DRM_MEM_KMS);
2753 }
2754
2755 int drm_connector_attach_property(struct drm_connector *connector,
2756                                struct drm_property *property, uint64_t init_val)
2757 {
2758         int i;
2759
2760         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2761                 if (connector->property_ids[i] == 0) {
2762                         connector->property_ids[i] = property->base.id;
2763                         connector->property_values[i] = init_val;
2764                         break;
2765                 }
2766         }
2767
2768         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2769                 return -EINVAL;
2770         return 0;
2771 }
2772
2773 int drm_connector_property_set_value(struct drm_connector *connector,
2774                                   struct drm_property *property, uint64_t value)
2775 {
2776         int i;
2777
2778         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2779                 if (connector->property_ids[i] == property->base.id) {
2780                         connector->property_values[i] = value;
2781                         break;
2782                 }
2783         }
2784
2785         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2786                 return -EINVAL;
2787         return 0;
2788 }
2789
2790 int drm_connector_property_get_value(struct drm_connector *connector,
2791                                   struct drm_property *property, uint64_t *val)
2792 {
2793         int i;
2794
2795         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2796                 if (connector->property_ids[i] == property->base.id) {
2797                         *val = connector->property_values[i];
2798                         break;
2799                 }
2800         }
2801
2802         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2803                 return -EINVAL;
2804         return 0;
2805 }
2806
2807 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2808                                void *data, struct drm_file *file_priv)
2809 {
2810         struct drm_mode_object *obj;
2811         struct drm_mode_get_property *out_resp = data;
2812         struct drm_property *property;
2813         int enum_count = 0;
2814         int blob_count = 0;
2815         int value_count = 0;
2816         int ret = 0, i;
2817         int copied;
2818         struct drm_property_enum *prop_enum;
2819         struct drm_mode_property_enum __user *enum_ptr;
2820         struct drm_property_blob *prop_blob;
2821         uint32_t *blob_id_ptr;
2822         uint64_t *values_ptr;
2823         uint32_t *blob_length_ptr;
2824
2825         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2826                 return -EINVAL;
2827
2828         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2829         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2830         if (!obj) {
2831                 ret = -EINVAL;
2832                 goto done;
2833         }
2834         property = obj_to_property(obj);
2835
2836         if (property->flags & DRM_MODE_PROP_ENUM) {
2837                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2838                         enum_count++;
2839         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2840                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2841                         blob_count++;
2842         }
2843
2844         value_count = property->num_values;
2845
2846         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2847         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2848         out_resp->flags = property->flags;
2849
2850         if ((out_resp->count_values >= value_count) && value_count) {
2851                 values_ptr = (uint64_t *)(uintptr_t)out_resp->values_ptr;
2852                 for (i = 0; i < value_count; i++) {
2853                         if (copyout(&property->values[i], values_ptr + i, sizeof(uint64_t))) {
2854                                 ret = -EFAULT;
2855                                 goto done;
2856                         }
2857                 }
2858         }
2859         out_resp->count_values = value_count;
2860
2861         if (property->flags & DRM_MODE_PROP_ENUM) {
2862                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2863                         copied = 0;
2864                         enum_ptr = (struct drm_mode_property_enum *)(uintptr_t)out_resp->enum_blob_ptr;
2865                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2866
2867                                 if (copyout(&prop_enum->value, &enum_ptr[copied].value, sizeof(uint64_t))) {
2868                                         ret = -EFAULT;
2869                                         goto done;
2870                                 }
2871
2872                                 if (copyout(&prop_enum->name,
2873                                     &enum_ptr[copied].name,DRM_PROP_NAME_LEN)) {
2874                                         ret = -EFAULT;
2875                                         goto done;
2876                                 }
2877                                 copied++;
2878                         }
2879                 }
2880                 out_resp->count_enum_blobs = enum_count;
2881         }
2882
2883         if (property->flags & DRM_MODE_PROP_BLOB) {
2884                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2885                         copied = 0;
2886                         blob_id_ptr = (uint32_t *)(uintptr_t)out_resp->enum_blob_ptr;
2887                         blob_length_ptr = (uint32_t *)(uintptr_t)out_resp->values_ptr;
2888
2889                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2890                                 if (copyout(&prop_blob->base.id,
2891                                     blob_id_ptr + copied, sizeof(uint32_t))) {
2892                                         ret = -EFAULT;
2893                                         goto done;
2894                                 }
2895
2896                                 if (copyout(&prop_blob->length,
2897                                     blob_length_ptr + copied, sizeof(uint32_t))) {
2898                                         ret = -EFAULT;
2899                                         goto done;
2900                                 }
2901
2902                                 copied++;
2903                         }
2904                 }
2905                 out_resp->count_enum_blobs = blob_count;
2906         }
2907 done:
2908         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2909         return ret;
2910 }
2911
2912 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2913                                                           void *data)
2914 {
2915         struct drm_property_blob *blob;
2916         int ret;
2917
2918         if (!length || !data)
2919                 return NULL;
2920
2921         blob = kmalloc(sizeof(struct drm_property_blob) + length, DRM_MEM_KMS,
2922             M_WAITOK | M_ZERO);
2923
2924         ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2925         if (ret) {
2926                 drm_free(blob, DRM_MEM_KMS);
2927                 return (NULL);
2928         }
2929
2930         blob->length = length;
2931
2932         memcpy(blob->data, data, length);
2933
2934         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2935         return blob;
2936 }
2937
2938 static void drm_property_destroy_blob(struct drm_device *dev,
2939                                struct drm_property_blob *blob)
2940 {
2941         drm_mode_object_put(dev, &blob->base);
2942         list_del(&blob->head);
2943         drm_free(blob, DRM_MEM_KMS);
2944 }
2945
2946 int drm_mode_getblob_ioctl(struct drm_device *dev,
2947                            void *data, struct drm_file *file_priv)
2948 {
2949         struct drm_mode_object *obj;
2950         struct drm_mode_get_blob *out_resp = data;
2951         struct drm_property_blob *blob;
2952         int ret = 0;
2953         void *blob_ptr;
2954
2955         if (!drm_core_check_feature(dev, DRIVER_MODESET))
2956                 return -EINVAL;
2957
2958         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
2959         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2960         if (!obj) {
2961                 ret = -EINVAL;
2962                 goto done;
2963         }
2964         blob = obj_to_blob(obj);
2965
2966         if (out_resp->length == blob->length) {
2967                 blob_ptr = (void *)(unsigned long)out_resp->data;
2968                 if (copyout(blob->data, blob_ptr, blob->length)){
2969                         ret = -EFAULT;
2970                         goto done;
2971                 }
2972         }
2973         out_resp->length = blob->length;
2974
2975 done:
2976         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
2977         return ret;
2978 }
2979
2980 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2981                                             struct edid *edid)
2982 {
2983         struct drm_device *dev = connector->dev;
2984         int ret = 0, size;
2985
2986         if (connector->edid_blob_ptr)
2987                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2988
2989         /* Delete edid, when there is none. */
2990         if (!edid) {
2991                 connector->edid_blob_ptr = NULL;
2992                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2993                 return ret;
2994         }
2995
2996         size = EDID_LENGTH * (1 + edid->extensions);
2997         connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2998                                                             size, edid);
2999
3000         ret = drm_connector_property_set_value(connector,
3001                                                dev->mode_config.edid_property,
3002                                                connector->edid_blob_ptr->base.id);
3003
3004         return ret;
3005 }
3006
3007 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3008                                        void *data, struct drm_file *file_priv)
3009 {
3010         struct drm_mode_connector_set_property *out_resp = data;
3011         struct drm_mode_object *obj;
3012         struct drm_property *property;
3013         struct drm_connector *connector;
3014         int ret = -EINVAL;
3015         int i;
3016
3017         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3018                 return -EINVAL;
3019
3020         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
3021
3022         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
3023         if (!obj) {
3024                 goto out;
3025         }
3026         connector = obj_to_connector(obj);
3027
3028         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
3029                 if (connector->property_ids[i] == out_resp->prop_id)
3030                         break;
3031         }
3032
3033         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
3034                 goto out;
3035         }
3036
3037         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3038         if (!obj) {
3039                 goto out;
3040         }
3041         property = obj_to_property(obj);
3042
3043         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3044                 goto out;
3045
3046         if (property->flags & DRM_MODE_PROP_RANGE) {
3047                 if (out_resp->value < property->values[0])
3048                         goto out;
3049
3050                 if (out_resp->value > property->values[1])
3051                         goto out;
3052         } else {
3053                 int found = 0;
3054                 for (i = 0; i < property->num_values; i++) {
3055                         if (property->values[i] == out_resp->value) {
3056                                 found = 1;
3057                                 break;
3058                         }
3059                 }
3060                 if (!found) {
3061                         goto out;
3062                 }
3063         }
3064
3065         /* Do DPMS ourselves */
3066         if (property == connector->dev->mode_config.dpms_property) {
3067                 if (connector->funcs->dpms)
3068                         (*connector->funcs->dpms)(connector, (int) out_resp->value);
3069                 ret = 0;
3070         } else if (connector->funcs->set_property)
3071                 ret = connector->funcs->set_property(connector, property, out_resp->value);
3072
3073         /* store the property value if successful */
3074         if (!ret)
3075                 drm_connector_property_set_value(connector, property, out_resp->value);
3076 out:
3077         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
3078         return ret;
3079 }
3080
3081 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3082                                       struct drm_encoder *encoder)
3083 {
3084         int i;
3085
3086         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3087                 if (connector->encoder_ids[i] == 0) {
3088                         connector->encoder_ids[i] = encoder->base.id;
3089                         return 0;
3090                 }
3091         }
3092         return -ENOMEM;
3093 }
3094
3095 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3096                                     struct drm_encoder *encoder)
3097 {
3098         int i;
3099         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3100                 if (connector->encoder_ids[i] == encoder->base.id) {
3101                         connector->encoder_ids[i] = 0;
3102                         if (connector->encoder == encoder)
3103                                 connector->encoder = NULL;
3104                         break;
3105                 }
3106         }
3107 }
3108
3109 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3110                                   int gamma_size)
3111 {
3112         crtc->gamma_size = gamma_size;
3113
3114         crtc->gamma_store = kmalloc(gamma_size * sizeof(uint16_t) * 3,
3115             DRM_MEM_KMS, M_WAITOK | M_ZERO);
3116
3117         return 0;
3118 }
3119
3120 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3121                              void *data, struct drm_file *file_priv)
3122 {
3123         struct drm_mode_crtc_lut *crtc_lut = data;
3124         struct drm_mode_object *obj;
3125         struct drm_crtc *crtc;
3126         void *r_base, *g_base, *b_base;
3127         int size;
3128         int ret = 0;
3129
3130         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3131                 return -EINVAL;
3132
3133         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
3134         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3135         if (!obj) {
3136                 ret = -EINVAL;
3137                 goto out;
3138         }
3139         crtc = obj_to_crtc(obj);
3140
3141         /* memcpy into gamma store */
3142         if (crtc_lut->gamma_size != crtc->gamma_size) {
3143                 ret = -EINVAL;
3144                 goto out;
3145         }
3146
3147         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3148         r_base = crtc->gamma_store;
3149         if (copyin((void *)(uintptr_t)crtc_lut->red, r_base, size)) {
3150                 ret = -EFAULT;
3151                 goto out;
3152         }
3153
3154         g_base = (char *)r_base + size;
3155         if (copyin((void *)(uintptr_t)crtc_lut->green, g_base, size)) {
3156                 ret = -EFAULT;
3157                 goto out;
3158         }
3159
3160         b_base = (char *)g_base + size;
3161         if (copyin((void *)(uintptr_t)crtc_lut->blue, b_base, size)) {
3162                 ret = -EFAULT;
3163                 goto out;
3164         }
3165
3166         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3167
3168 out:
3169         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
3170         return ret;
3171
3172 }
3173
3174 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3175                              void *data, struct drm_file *file_priv)
3176 {
3177         struct drm_mode_crtc_lut *crtc_lut = data;
3178         struct drm_mode_object *obj;
3179         struct drm_crtc *crtc;
3180         void *r_base, *g_base, *b_base;
3181         int size;
3182         int ret = 0;
3183
3184         if (!drm_core_check_feature(dev, DRIVER_MODESET))
3185                 return -EINVAL;
3186
3187         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
3188         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3189         if (!obj) {
3190                 ret = -EINVAL;
3191                 goto out;
3192         }
3193         crtc = obj_to_crtc(obj);
3194
3195         /* memcpy into gamma store */
3196         if (crtc_lut->gamma_size != crtc->gamma_size) {
3197                 ret = -EINVAL;
3198                 goto out;
3199         }
3200
3201         size = crtc_lut->gamma_size * (sizeof(uint16_t));
3202         r_base = crtc->gamma_store;
3203         if (copyout(r_base, (void *)(uintptr_t)crtc_lut->red, size)) {
3204                 ret = -EFAULT;
3205                 goto out;
3206         }
3207
3208         g_base = (char *)r_base + size;
3209         if (copyout(g_base, (void *)(uintptr_t)crtc_lut->green, size)) {
3210                 ret = -EFAULT;
3211                 goto out;
3212         }
3213
3214         b_base = (char *)g_base + size;
3215         if (copyout(b_base, (void *)(uintptr_t)crtc_lut->blue, size)) {
3216                 ret = -EFAULT;
3217                 goto out;
3218         }
3219 out:
3220         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
3221         return ret;
3222 }
3223
3224 static void
3225 drm_kms_free(void *arg)
3226 {
3227
3228         drm_free(arg, DRM_MEM_KMS);
3229 }
3230
3231 int drm_mode_page_flip_ioctl(struct drm_device *dev, void *data,
3232     struct drm_file *file_priv)
3233 {
3234         struct drm_mode_crtc_page_flip *page_flip = data;
3235         struct drm_mode_object *obj;
3236         struct drm_crtc *crtc;
3237         struct drm_framebuffer *fb;
3238         struct drm_pending_vblank_event *e = NULL;
3239         int ret = EINVAL;
3240
3241         if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3242             page_flip->reserved != 0)
3243                 return (EINVAL);
3244
3245         lockmgr(&dev->mode_config.mutex, LK_EXCLUSIVE);
3246         obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3247         if (!obj)
3248                 goto out;
3249         crtc = obj_to_crtc(obj);
3250
3251         if (crtc->fb == NULL) {
3252                 /* The framebuffer is currently unbound, presumably
3253                  * due to a hotplug event, that userspace has not
3254                  * yet discovered.
3255                  */
3256                 ret = EBUSY;
3257                 goto out;
3258         }
3259
3260         if (crtc->funcs->page_flip == NULL)
3261                 goto out;
3262
3263         obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3264         if (!obj)
3265                 goto out;
3266         fb = obj_to_fb(obj);
3267
3268         if (crtc->mode.hdisplay > fb->width ||
3269             crtc->mode.vdisplay > fb->height ||
3270             crtc->x > fb->width - crtc->mode.hdisplay ||
3271             crtc->y > fb->height - crtc->mode.vdisplay) {
3272                 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n",
3273                               fb->width, fb->height,
3274                               crtc->mode.hdisplay, crtc->mode.vdisplay,
3275                               crtc->x, crtc->y);
3276                 ret = ENOSPC;
3277                 goto out;
3278         }
3279
3280         if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3281                 ret = ENOMEM;
3282                 lockmgr(&dev->event_lock, LK_EXCLUSIVE);
3283                 if (file_priv->event_space < sizeof e->event) {
3284                         lockmgr(&dev->event_lock, LK_RELEASE);
3285                         goto out;
3286                 }
3287                 file_priv->event_space -= sizeof e->event;
3288                 lockmgr(&dev->event_lock, LK_RELEASE);
3289
3290                 e = kmalloc(sizeof *e, DRM_MEM_KMS, M_WAITOK | M_ZERO);
3291
3292                 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3293                 e->event.base.length = sizeof e->event;
3294                 e->event.user_data = page_flip->user_data;
3295                 e->base.event = &e->event.base;
3296                 e->base.file_priv = file_priv;
3297                 e->base.destroy =
3298                         (void (*) (struct drm_pending_event *))drm_kms_free;
3299         }
3300
3301         ret = -crtc->funcs->page_flip(crtc, fb, e);
3302         if (ret != 0) {
3303                 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3304                         lockmgr(&dev->event_lock, LK_EXCLUSIVE);
3305                         file_priv->event_space += sizeof e->event;
3306                         lockmgr(&dev->event_lock, LK_RELEASE);
3307                         drm_free(e, DRM_MEM_KMS);
3308                 }
3309         }
3310
3311 out:
3312         lockmgr(&dev->mode_config.mutex, LK_RELEASE);
3313         return (ret);
3314 }
3315
3316 void drm_mode_config_reset(struct drm_device *dev)
3317 {
3318         struct drm_crtc *crtc;
3319         struct drm_encoder *encoder;
3320         struct drm_connector *connector;
3321
3322         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3323                 if (crtc->funcs->reset)
3324                         crtc->funcs->reset(crtc);
3325
3326         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3327                 if (encoder->funcs->reset)
3328                         encoder->funcs->reset(encoder);
3329
3330         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3331                 if (connector->funcs->reset)
3332                         connector->funcs->reset(connector);
3333 }
3334
3335 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3336                                void *data, struct drm_file *file_priv)
3337 {
3338         struct drm_mode_create_dumb *args = data;
3339
3340         if (!dev->driver->dumb_create)
3341                 return -ENOTSUP;
3342         return dev->driver->dumb_create(file_priv, dev, args);
3343 }
3344
3345 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3346                              void *data, struct drm_file *file_priv)
3347 {
3348         struct drm_mode_map_dumb *args = data;
3349
3350         /* call driver ioctl to get mmap offset */
3351         if (!dev->driver->dumb_map_offset)
3352                 return -ENOTSUP;
3353
3354         return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3355 }
3356
3357 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3358                                 void *data, struct drm_file *file_priv)
3359 {
3360         struct drm_mode_destroy_dumb *args = data;
3361
3362         if (!dev->driver->dumb_destroy)
3363                 return -ENOTSUP;
3364
3365         return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3366 }
3367
3368 /*
3369  * Just need to support RGB formats here for compat with code that doesn't
3370  * use pixel formats directly yet.
3371  */
3372 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3373                           int *bpp)
3374 {
3375         switch (format) {
3376         case DRM_FORMAT_RGB332:
3377         case DRM_FORMAT_BGR233:
3378                 *depth = 8;
3379                 *bpp = 8;
3380                 break;
3381         case DRM_FORMAT_XRGB1555:
3382         case DRM_FORMAT_XBGR1555:
3383         case DRM_FORMAT_RGBX5551:
3384         case DRM_FORMAT_BGRX5551:
3385         case DRM_FORMAT_ARGB1555:
3386         case DRM_FORMAT_ABGR1555:
3387         case DRM_FORMAT_RGBA5551:
3388         case DRM_FORMAT_BGRA5551:
3389                 *depth = 15;
3390                 *bpp = 16;
3391                 break;
3392         case DRM_FORMAT_RGB565:
3393         case DRM_FORMAT_BGR565:
3394                 *depth = 16;
3395                 *bpp = 16;
3396                 break;
3397         case DRM_FORMAT_RGB888:
3398         case DRM_FORMAT_BGR888:
3399                 *depth = 24;
3400                 *bpp = 24;
3401                 break;
3402         case DRM_FORMAT_XRGB8888:
3403         case DRM_FORMAT_XBGR8888:
3404         case DRM_FORMAT_RGBX8888:
3405         case DRM_FORMAT_BGRX8888:
3406                 *depth = 24;
3407                 *bpp = 32;
3408                 break;
3409         case DRM_FORMAT_XRGB2101010:
3410         case DRM_FORMAT_XBGR2101010:
3411         case DRM_FORMAT_RGBX1010102:
3412         case DRM_FORMAT_BGRX1010102:
3413         case DRM_FORMAT_ARGB2101010:
3414         case DRM_FORMAT_ABGR2101010:
3415         case DRM_FORMAT_RGBA1010102:
3416         case DRM_FORMAT_BGRA1010102:
3417                 *depth = 30;
3418                 *bpp = 32;
3419                 break;
3420         case DRM_FORMAT_ARGB8888:
3421         case DRM_FORMAT_ABGR8888:
3422         case DRM_FORMAT_RGBA8888:
3423         case DRM_FORMAT_BGRA8888:
3424                 *depth = 32;
3425                 *bpp = 32;
3426                 break;
3427         default:
3428                 DRM_DEBUG_KMS("unsupported pixel format\n");
3429                 *depth = 0;
3430                 *bpp = 0;
3431                 break;
3432         }
3433 }