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drm: Add drm_bridge
[deliverable/linux.git] / drivers / gpu / drm / drm_crtc.c
CommitLineData
f453ba04
DA		 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 */
6ba6d03e 32#include <linux/ctype.h>
f453ba04 33#include <linux/list.h>
5a0e3ad6 34#include <linux/slab.h>
2d1a8a48 35#include <linux/export.h>
760285e7
DH		 36#include <drm/drmP.h>
37#include <drm/drm_crtc.h>
38#include <drm/drm_edid.h>
39#include <drm/drm_fourcc.h>
f453ba04 40
84849903
DV		 41/**
42 * drm_modeset_lock_all - take all modeset locks
43 * @dev: drm device
44 *
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
47 */
48void drm_modeset_lock_all(struct drm_device *dev)
49{
29494c17
DV		 50 struct drm_crtc *crtc;
51
84849903 52 mutex_lock(&dev->mode_config.mutex);
29494c17
DV		 53
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
55 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
84849903
DV		 56}
57EXPORT_SYMBOL(drm_modeset_lock_all);
58
59/**
60 * drm_modeset_unlock_all - drop all modeset locks
61 * @dev: device
62 */
63void drm_modeset_unlock_all(struct drm_device *dev)
64{
29494c17
DV		 65 struct drm_crtc *crtc;
66
67 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
68 mutex_unlock(&crtc->mutex);
69
84849903
DV		 70 mutex_unlock(&dev->mode_config.mutex);
71}
72EXPORT_SYMBOL(drm_modeset_unlock_all);
73
6aed8ec3
DV		 74/**
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
76 * @dev: device
77 */
78void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
79{
80 struct drm_crtc *crtc;
81
a9b054e8
DV		 82 /* Locking is currently fubar in the panic handler. */
83 if (oops_in_progress)
84 return;
85
6aed8ec3
DV		 86 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
87 WARN_ON(!mutex_is_locked(&crtc->mutex));
88
89 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
90}
91EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
92
f453ba04
DA		 93/* Avoid boilerplate. I'm tired of typing. */
94#define DRM_ENUM_NAME_FN(fnname, list) \
d20d3174 95 const char *fnname(int val) \
f453ba04
DA		 96 { \
97 int i; \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
101 } \
102 return "(unknown)"; \
103 }
104
105/*
106 * Global properties
107 */
d20d3174 108static const struct drm_prop_enum_list drm_dpms_enum_list[] =
f453ba04
DA		 109{ { DRM_MODE_DPMS_ON, "On" },
110 { DRM_MODE_DPMS_STANDBY, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
112 { DRM_MODE_DPMS_OFF, "Off" }
113};
114
115DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
116
117/*
118 * Optional properties
119 */
d20d3174 120static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
f453ba04 121{
53bd8389
JB		 122 { DRM_MODE_SCALE_NONE, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
124 { DRM_MODE_SCALE_CENTER, "Center" },
125 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
f453ba04
DA		 126};
127
f453ba04
DA		 128/*
129 * Non-global properties, but "required" for certain connectors.
130 */
d20d3174 131static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
f453ba04
DA		 132{
133 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
134 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
135 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
136};
137
138DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
139
d20d3174 140static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
f453ba04
DA		 141{
142 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
143 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
144 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
145};
146
147DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
148 drm_dvi_i_subconnector_enum_list)
149
d20d3174 150static const struct drm_prop_enum_list drm_tv_select_enum_list[] =
f453ba04
DA		 151{
152 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
153 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
154 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
155 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 156 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 157};
158
159DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
160
d20d3174 161static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
f453ba04
DA		 162{
163 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
164 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
165 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
166 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 167 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 168};
169
170DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
171 drm_tv_subconnector_enum_list)
172
d20d3174 173static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
884840aa
JB		 174 { DRM_MODE_DIRTY_OFF, "Off" },
175 { DRM_MODE_DIRTY_ON, "On" },
176 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
177};
178
f453ba04
DA		 179struct drm_conn_prop_enum_list {
180 int type;
d20d3174 181 const char *name;
b21e3afe 182 struct ida ida;
f453ba04
DA		 183};
184
185/*
186 * Connector and encoder types.
187 */
188static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
b21e3afe
IM		 189{ { DRM_MODE_CONNECTOR_Unknown, "Unknown" },
190 { DRM_MODE_CONNECTOR_VGA, "VGA" },
191 { DRM_MODE_CONNECTOR_DVII, "DVI-I" },
192 { DRM_MODE_CONNECTOR_DVID, "DVI-D" },
193 { DRM_MODE_CONNECTOR_DVIA, "DVI-A" },
194 { DRM_MODE_CONNECTOR_Composite, "Composite" },
195 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" },
196 { DRM_MODE_CONNECTOR_LVDS, "LVDS" },
197 { DRM_MODE_CONNECTOR_Component, "Component" },
198 { DRM_MODE_CONNECTOR_9PinDIN, "DIN" },
199 { DRM_MODE_CONNECTOR_DisplayPort, "DP" },
200 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" },
201 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" },
202 { DRM_MODE_CONNECTOR_TV, "TV" },
203 { DRM_MODE_CONNECTOR_eDP, "eDP" },
204 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" },
f453ba04
DA		 205};
206
d20d3174 207static const struct drm_prop_enum_list drm_encoder_enum_list[] =
f453ba04
DA		 208{ { DRM_MODE_ENCODER_NONE, "None" },
209 { DRM_MODE_ENCODER_DAC, "DAC" },
210 { DRM_MODE_ENCODER_TMDS, "TMDS" },
211 { DRM_MODE_ENCODER_LVDS, "LVDS" },
212 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 213 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
f453ba04
DA		 214};
215
b21e3afe
IM		 216void drm_connector_ida_init(void)
217{
218 int i;
219
220 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
221 ida_init(&drm_connector_enum_list[i].ida);
222}
223
224void drm_connector_ida_destroy(void)
225{
226 int i;
227
228 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
229 ida_destroy(&drm_connector_enum_list[i].ida);
230}
231
d20d3174 232const char *drm_get_encoder_name(const struct drm_encoder *encoder)
f453ba04
DA		 233{
234 static char buf[32];
235
236 snprintf(buf, 32, "%s-%d",
237 drm_encoder_enum_list[encoder->encoder_type].name,
238 encoder->base.id);
239 return buf;
240}
13a8195b 241EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04 242
d20d3174 243const char *drm_get_connector_name(const struct drm_connector *connector)
f453ba04
DA		 244{
245 static char buf[32];
246
247 snprintf(buf, 32, "%s-%d",
248 drm_connector_enum_list[connector->connector_type].name,
249 connector->connector_type_id);
250 return buf;
251}
252EXPORT_SYMBOL(drm_get_connector_name);
253
d20d3174 254const char *drm_get_connector_status_name(enum drm_connector_status status)
f453ba04
DA		 255{
256 if (status == connector_status_connected)
257 return "connected";
258 else if (status == connector_status_disconnected)
259 return "disconnected";
260 else
261 return "unknown";
262}
ed7951dc 263EXPORT_SYMBOL(drm_get_connector_status_name);
f453ba04 264
6ba6d03e
VS		 265static char printable_char(int c)
266{
267 return isascii(c) && isprint(c) ? c : '?';
268}
269
d20d3174 270const char *drm_get_format_name(uint32_t format)
6ba6d03e
VS		 271{
272 static char buf[32];
273
274 snprintf(buf, sizeof(buf),
275 "%c%c%c%c %s-endian (0x%08x)",
276 printable_char(format & 0xff),
277 printable_char((format >> 8) & 0xff),
278 printable_char((format >> 16) & 0xff),
279 printable_char((format >> 24) & 0x7f),
280 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
281 format);
282
283 return buf;
284}
285EXPORT_SYMBOL(drm_get_format_name);
286
f453ba04 287/**
065a50ed 288 * drm_mode_object_get - allocate a new modeset identifier
f453ba04 289 * @dev: DRM device
065a50ed
DV		 290 * @obj: object pointer, used to generate unique ID
291 * @obj_type: object type
f453ba04 292 *
f453ba04
DA		 293 * Create a unique identifier based on @ptr in @dev's identifier space. Used
294 * for tracking modes, CRTCs and connectors.
295 *
296 * RETURNS:
297 * New unique (relative to other objects in @dev) integer identifier for the
298 * object.
299 */
300static int drm_mode_object_get(struct drm_device *dev,
301 struct drm_mode_object *obj, uint32_t obj_type)
302{
f453ba04
DA		 303 int ret;
304
ad2563c2 305 mutex_lock(&dev->mode_config.idr_mutex);
2e928815
TH		 306 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
307 if (ret >= 0) {
4b096ac1
DV		 308 /*
309 * Set up the object linking under the protection of the idr
310 * lock so that other users can't see inconsistent state.
311 */
2e928815 312 obj->id = ret;
4b096ac1
DV		 313 obj->type = obj_type;
314 }
ad2563c2 315 mutex_unlock(&dev->mode_config.idr_mutex);
4b096ac1 316
2e928815 317 return ret < 0 ? ret : 0;
f453ba04
DA		 318}
319
320/**
065a50ed 321 * drm_mode_object_put - free a modeset identifer
f453ba04 322 * @dev: DRM device
065a50ed 323 * @object: object to free
f453ba04 324 *
f453ba04
DA		 325 * Free @id from @dev's unique identifier pool.
326 */
327static void drm_mode_object_put(struct drm_device *dev,
328 struct drm_mode_object *object)
329{
ad2563c2 330 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 331 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 332 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 333}
334
786b99ed
DV		 335/**
336 * drm_mode_object_find - look up a drm object with static lifetime
337 * @dev: drm device
338 * @id: id of the mode object
339 * @type: type of the mode object
340 *
341 * Note that framebuffers cannot be looked up with this functions - since those
342 * are reference counted, they need special treatment.
343 */
7a9c9060
DV		 344struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
345 uint32_t id, uint32_t type)
f453ba04 346{
ad2563c2 347 struct drm_mode_object *obj = NULL;
f453ba04 348
786b99ed
DV		 349 /* Framebuffers are reference counted and need their own lookup
350 * function.*/
351 WARN_ON(type == DRM_MODE_OBJECT_FB);
352
ad2563c2 353 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 354 obj = idr_find(&dev->mode_config.crtc_idr, id);
355 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 356 obj = NULL;
357 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 358
359 return obj;
360}
361EXPORT_SYMBOL(drm_mode_object_find);
362
f453ba04
DA		 363/**
364 * drm_framebuffer_init - initialize a framebuffer
365 * @dev: DRM device
065a50ed
DV		 366 * @fb: framebuffer to be initialized
367 * @funcs: ... with these functions
f453ba04 368 *
f453ba04
DA		 369 * Allocates an ID for the framebuffer's parent mode object, sets its mode
370 * functions & device file and adds it to the master fd list.
371 *
4b096ac1
DV		 372 * IMPORTANT:
373 * This functions publishes the fb and makes it available for concurrent access
374 * by other users. Which means by this point the fb _must_ be fully set up -
375 * since all the fb attributes are invariant over its lifetime, no further
376 * locking but only correct reference counting is required.
377 *
f453ba04 378 * RETURNS:
af901ca1 379 * Zero on success, error code on failure.
f453ba04
DA		 380 */
381int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
382 const struct drm_framebuffer_funcs *funcs)
383{
384 int ret;
385
4b096ac1 386 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e 387 kref_init(&fb->refcount);
4b096ac1
DV		 388 INIT_LIST_HEAD(&fb->filp_head);
389 fb->dev = dev;
390 fb->funcs = funcs;
f7eff60e 391
f453ba04 392 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
6bfc56aa 393 if (ret)
4b096ac1 394 goto out;
f453ba04 395
2b677e8c
DV		 396 /* Grab the idr reference. */
397 drm_framebuffer_reference(fb);
398
f453ba04
DA		 399 dev->mode_config.num_fb++;
400 list_add(&fb->head, &dev->mode_config.fb_list);
4b096ac1
DV		 401out:
402 mutex_unlock(&dev->mode_config.fb_lock);
f453ba04
DA		 403
404 return 0;
405}
406EXPORT_SYMBOL(drm_framebuffer_init);
407
f7eff60e
RC		 408static void drm_framebuffer_free(struct kref *kref)
409{
410 struct drm_framebuffer *fb =
411 container_of(kref, struct drm_framebuffer, refcount);
412 fb->funcs->destroy(fb);
413}
414
2b677e8c
DV		 415static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
416 uint32_t id)
417{
418 struct drm_mode_object *obj = NULL;
419 struct drm_framebuffer *fb;
420
421 mutex_lock(&dev->mode_config.idr_mutex);
422 obj = idr_find(&dev->mode_config.crtc_idr, id);
423 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
424 fb = NULL;
425 else
426 fb = obj_to_fb(obj);
427 mutex_unlock(&dev->mode_config.idr_mutex);
428
429 return fb;
430}
431
786b99ed
DV		 432/**
433 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
434 * @dev: drm device
435 * @id: id of the fb object
436 *
437 * If successful, this grabs an additional reference to the framebuffer -
438 * callers need to make sure to eventually unreference the returned framebuffer
439 * again.
440 */
441struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
442 uint32_t id)
443{
786b99ed
DV		 444 struct drm_framebuffer *fb;
445
446 mutex_lock(&dev->mode_config.fb_lock);
2b677e8c 447 fb = __drm_framebuffer_lookup(dev, id);
786b99ed 448 if (fb)
9131d3d8 449 drm_framebuffer_reference(fb);
786b99ed
DV		 450 mutex_unlock(&dev->mode_config.fb_lock);
451
452 return fb;
453}
454EXPORT_SYMBOL(drm_framebuffer_lookup);
455
f7eff60e
RC		 456/**
457 * drm_framebuffer_unreference - unref a framebuffer
065a50ed
DV		 458 * @fb: framebuffer to unref
459 *
460 * This functions decrements the fb's refcount and frees it if it drops to zero.
f7eff60e
RC		 461 */
462void drm_framebuffer_unreference(struct drm_framebuffer *fb)
463{
f7eff60e 464 DRM_DEBUG("FB ID: %d\n", fb->base.id);
f7eff60e
RC		 465 kref_put(&fb->refcount, drm_framebuffer_free);
466}
467EXPORT_SYMBOL(drm_framebuffer_unreference);
468
469/**
470 * drm_framebuffer_reference - incr the fb refcnt
065a50ed 471 * @fb: framebuffer
f7eff60e
RC		 472 */
473void drm_framebuffer_reference(struct drm_framebuffer *fb)
474{
475 DRM_DEBUG("FB ID: %d\n", fb->base.id);
476 kref_get(&fb->refcount);
477}
478EXPORT_SYMBOL(drm_framebuffer_reference);
479
2b677e8c
DV		 480static void drm_framebuffer_free_bug(struct kref *kref)
481{
482 BUG();
483}
484
6c2a7532
DV		 485static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
486{
487 DRM_DEBUG("FB ID: %d\n", fb->base.id);
488 kref_put(&fb->refcount, drm_framebuffer_free_bug);
489}
490
2b677e8c
DV		 491/* dev->mode_config.fb_lock must be held! */
492static void __drm_framebuffer_unregister(struct drm_device *dev,
493 struct drm_framebuffer *fb)
494{
495 mutex_lock(&dev->mode_config.idr_mutex);
496 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
497 mutex_unlock(&dev->mode_config.idr_mutex);
498
499 fb->base.id = 0;
500
6c2a7532 501 __drm_framebuffer_unreference(fb);
2b677e8c
DV		 502}
503
36206361
DV		 504/**
505 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
506 * @fb: fb to unregister
507 *
508 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
509 * those used for fbdev. Note that the caller must hold a reference of it's own,
510 * i.e. the object may not be destroyed through this call (since it'll lead to a
511 * locking inversion).
512 */
513void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
514{
2b677e8c
DV		 515 struct drm_device *dev = fb->dev;
516
517 mutex_lock(&dev->mode_config.fb_lock);
518 /* Mark fb as reaped and drop idr ref. */
519 __drm_framebuffer_unregister(dev, fb);
520 mutex_unlock(&dev->mode_config.fb_lock);
36206361
DV		 521}
522EXPORT_SYMBOL(drm_framebuffer_unregister_private);
523
f453ba04
DA		 524/**
525 * drm_framebuffer_cleanup - remove a framebuffer object
526 * @fb: framebuffer to remove
527 *
36206361
DV		 528 * Cleanup references to a user-created framebuffer. This function is intended
529 * to be used from the drivers ->destroy callback.
530 *
531 * Note that this function does not remove the fb from active usuage - if it is
532 * still used anywhere, hilarity can ensue since userspace could call getfb on
533 * the id and get back -EINVAL. Obviously no concern at driver unload time.
534 *
535 * Also, the framebuffer will not be removed from the lookup idr - for
536 * user-created framebuffers this will happen in in the rmfb ioctl. For
537 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
538 * drm_framebuffer_unregister_private.
f453ba04
DA		 539 */
540void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
f7eff60e
RC		 541{
542 struct drm_device *dev = fb->dev;
8faf6b18 543
4b096ac1 544 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e
RC		 545 list_del(&fb->head);
546 dev->mode_config.num_fb--;
4b096ac1 547 mutex_unlock(&dev->mode_config.fb_lock);
f7eff60e
RC		 548}
549EXPORT_SYMBOL(drm_framebuffer_cleanup);
550
551/**
552 * drm_framebuffer_remove - remove and unreference a framebuffer object
553 * @fb: framebuffer to remove
554 *
f7eff60e 555 * Scans all the CRTCs and planes in @dev's mode_config. If they're
36206361 556 * using @fb, removes it, setting it to NULL. Then drops the reference to the
b62584e3
DV		 557 * passed-in framebuffer. Might take the modeset locks.
558 *
559 * Note that this function optimizes the cleanup away if the caller holds the
560 * last reference to the framebuffer. It is also guaranteed to not take the
561 * modeset locks in this case.
f7eff60e
RC		 562 */
563void drm_framebuffer_remove(struct drm_framebuffer *fb)
f453ba04
DA		 564{
565 struct drm_device *dev = fb->dev;
566 struct drm_crtc *crtc;
8cf5c917 567 struct drm_plane *plane;
5ef5f72f
DA		 568 struct drm_mode_set set;
569 int ret;
f453ba04 570
4b096ac1 571 WARN_ON(!list_empty(&fb->filp_head));
8faf6b18 572
b62584e3
DV		 573 /*
574 * drm ABI mandates that we remove any deleted framebuffers from active
575 * useage. But since most sane clients only remove framebuffers they no
576 * longer need, try to optimize this away.
577 *
578 * Since we're holding a reference ourselves, observing a refcount of 1
579 * means that we're the last holder and can skip it. Also, the refcount
580 * can never increase from 1 again, so we don't need any barriers or
581 * locks.
582 *
583 * Note that userspace could try to race with use and instate a new
584 * usage _after_ we've cleared all current ones. End result will be an
585 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
586 * in this manner.
587 */
588 if (atomic_read(&fb->refcount.refcount) > 1) {
589 drm_modeset_lock_all(dev);
590 /* remove from any CRTC */
591 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
592 if (crtc->fb == fb) {
593 /* should turn off the crtc */
594 memset(&set, 0, sizeof(struct drm_mode_set));
595 set.crtc = crtc;
596 set.fb = NULL;
597 ret = drm_mode_set_config_internal(&set);
598 if (ret)
599 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
600 }
5ef5f72f 601 }
f453ba04 602
b62584e3 603 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
9125e618
VS		 604 if (plane->fb == fb)
605 drm_plane_force_disable(plane);
8cf5c917 606 }
b62584e3 607 drm_modeset_unlock_all(dev);
8cf5c917
JB		 608 }
609
f7eff60e 610 drm_framebuffer_unreference(fb);
f453ba04 611}
f7eff60e 612EXPORT_SYMBOL(drm_framebuffer_remove);
f453ba04
DA		 613
614/**
615 * drm_crtc_init - Initialise a new CRTC object
616 * @dev: DRM device
617 * @crtc: CRTC object to init
618 * @funcs: callbacks for the new CRTC
619 *
ad6f5c34 620 * Inits a new object created as base part of a driver crtc object.
6bfc56aa
VS		 621 *
622 * RETURNS:
623 * Zero on success, error code on failure.
f453ba04 624 */
6bfc56aa 625int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
f453ba04
DA		 626 const struct drm_crtc_funcs *funcs)
627{
6bfc56aa
VS		 628 int ret;
629
f453ba04
DA		 630 crtc->dev = dev;
631 crtc->funcs = funcs;
7c80e128 632 crtc->invert_dimensions = false;
f453ba04 633
84849903 634 drm_modeset_lock_all(dev);
29494c17
DV		 635 mutex_init(&crtc->mutex);
636 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
6bfc56aa
VS		 637
638 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
639 if (ret)
640 goto out;
f453ba04 641
bffd9de0
PZ		 642 crtc->base.properties = &crtc->properties;
643
f453ba04
DA		 644 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
645 dev->mode_config.num_crtc++;
6bfc56aa
VS		 646
647 out:
84849903 648 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 649
650 return ret;
f453ba04
DA		 651}
652EXPORT_SYMBOL(drm_crtc_init);
653
654/**
ad6f5c34 655 * drm_crtc_cleanup - Clean up the core crtc usage
f453ba04
DA		 656 * @crtc: CRTC to cleanup
657 *
ad6f5c34
VS		 658 * This function cleans up @crtc and removes it from the DRM mode setting
659 * core. Note that the function does *not* free the crtc structure itself,
660 * this is the responsibility of the caller.
f453ba04
DA		 661 */
662void drm_crtc_cleanup(struct drm_crtc *crtc)
663{
664 struct drm_device *dev = crtc->dev;
665
9e1c156f
SK		 666 kfree(crtc->gamma_store);
667 crtc->gamma_store = NULL;
f453ba04
DA		 668
669 drm_mode_object_put(dev, &crtc->base);
670 list_del(&crtc->head);
671 dev->mode_config.num_crtc--;
672}
673EXPORT_SYMBOL(drm_crtc_cleanup);
674
675/**
676 * drm_mode_probed_add - add a mode to a connector's probed mode list
677 * @connector: connector the new mode
678 * @mode: mode data
679 *
f453ba04
DA		 680 * Add @mode to @connector's mode list for later use.
681 */
682void drm_mode_probed_add(struct drm_connector *connector,
683 struct drm_display_mode *mode)
684{
990256ae 685 list_add_tail(&mode->head, &connector->probed_modes);
f453ba04
DA		 686}
687EXPORT_SYMBOL(drm_mode_probed_add);
688
86f422d5 689/*
f453ba04
DA		 690 * drm_mode_remove - remove and free a mode
691 * @connector: connector list to modify
692 * @mode: mode to remove
693 *
f453ba04
DA		 694 * Remove @mode from @connector's mode list, then free it.
695 */
86f422d5
LD		 696static void drm_mode_remove(struct drm_connector *connector,
697 struct drm_display_mode *mode)
f453ba04
DA		 698{
699 list_del(&mode->head);
554f1d78 700 drm_mode_destroy(connector->dev, mode);
f453ba04 701}
f453ba04
DA		 702
703/**
704 * drm_connector_init - Init a preallocated connector
705 * @dev: DRM device
706 * @connector: the connector to init
707 * @funcs: callbacks for this connector
065a50ed 708 * @connector_type: user visible type of the connector
f453ba04 709 *
f453ba04
DA		 710 * Initialises a preallocated connector. Connectors should be
711 * subclassed as part of driver connector objects.
6bfc56aa
VS		 712 *
713 * RETURNS:
714 * Zero on success, error code on failure.
f453ba04 715 */
6bfc56aa
VS		 716int drm_connector_init(struct drm_device *dev,
717 struct drm_connector *connector,
718 const struct drm_connector_funcs *funcs,
719 int connector_type)
f453ba04 720{
6bfc56aa 721 int ret;
b21e3afe
IM		 722 struct ida *connector_ida =
723 &drm_connector_enum_list[connector_type].ida;
6bfc56aa 724
84849903 725 drm_modeset_lock_all(dev);
f453ba04 726
6bfc56aa
VS		 727 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
728 if (ret)
729 goto out;
730
7e3bdf4a 731 connector->base.properties = &connector->properties;
f453ba04
DA		 732 connector->dev = dev;
733 connector->funcs = funcs;
f453ba04
DA		 734 connector->connector_type = connector_type;
735 connector->connector_type_id =
b21e3afe
IM		 736 ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
737 if (connector->connector_type_id < 0) {
738 ret = connector->connector_type_id;
739 drm_mode_object_put(dev, &connector->base);
740 goto out;
741 }
f453ba04
DA		 742 INIT_LIST_HEAD(&connector->probed_modes);
743 INIT_LIST_HEAD(&connector->modes);
744 connector->edid_blob_ptr = NULL;
5e2cb2f6 745 connector->status = connector_status_unknown;
f453ba04
DA		 746
747 list_add_tail(&connector->head, &dev->mode_config.connector_list);
748 dev->mode_config.num_connector++;
749
a7331e5c 750 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
58495563 751 drm_object_attach_property(&connector->base,
a7331e5c
TH		 752 dev->mode_config.edid_property,
753 0);
f453ba04 754
58495563 755 drm_object_attach_property(&connector->base,
f453ba04
DA		 756 dev->mode_config.dpms_property, 0);
757
6bfc56aa 758 out:
84849903 759 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 760
761 return ret;
f453ba04
DA		 762}
763EXPORT_SYMBOL(drm_connector_init);
764
765/**
766 * drm_connector_cleanup - cleans up an initialised connector
767 * @connector: connector to cleanup
768 *
f453ba04
DA		 769 * Cleans up the connector but doesn't free the object.
770 */
771void drm_connector_cleanup(struct drm_connector *connector)
772{
773 struct drm_device *dev = connector->dev;
774 struct drm_display_mode *mode, *t;
775
776 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
777 drm_mode_remove(connector, mode);
778
779 list_for_each_entry_safe(mode, t, &connector->modes, head)
780 drm_mode_remove(connector, mode);
781
b21e3afe
IM		 782 ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
783 connector->connector_type_id);
784
f453ba04
DA		 785 drm_mode_object_put(dev, &connector->base);
786 list_del(&connector->head);
6380c509 787 dev->mode_config.num_connector--;
f453ba04
DA		 788}
789EXPORT_SYMBOL(drm_connector_cleanup);
790
cbc7e221
DA		 791void drm_connector_unplug_all(struct drm_device *dev)
792{
793 struct drm_connector *connector;
794
795 /* taking the mode config mutex ends up in a clash with sysfs */
796 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
797 drm_sysfs_connector_remove(connector);
798
799}
800EXPORT_SYMBOL(drm_connector_unplug_all);
801
3b336ec4
SP		 802int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
803 const struct drm_bridge_funcs *funcs)
804{
805 int ret;
806
807 drm_modeset_lock_all(dev);
808
809 ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE);
810 if (ret)
811 goto out;
812
813 bridge->dev = dev;
814 bridge->funcs = funcs;
815
816 list_add_tail(&bridge->head, &dev->mode_config.bridge_list);
817 dev->mode_config.num_bridge++;
818
819 out:
820 drm_modeset_unlock_all(dev);
821 return ret;
822}
823EXPORT_SYMBOL(drm_bridge_init);
824
825void drm_bridge_cleanup(struct drm_bridge *bridge)
826{
827 struct drm_device *dev = bridge->dev;
828
829 drm_modeset_lock_all(dev);
830 drm_mode_object_put(dev, &bridge->base);
831 list_del(&bridge->head);
832 dev->mode_config.num_bridge--;
833 drm_modeset_unlock_all(dev);
834}
835EXPORT_SYMBOL(drm_bridge_cleanup);
836
6bfc56aa 837int drm_encoder_init(struct drm_device *dev,
cbc7e221
DA		 838 struct drm_encoder *encoder,
839 const struct drm_encoder_funcs *funcs,
840 int encoder_type)
f453ba04 841{
6bfc56aa
VS		 842 int ret;
843
84849903 844 drm_modeset_lock_all(dev);
f453ba04 845
6bfc56aa
VS		 846 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
847 if (ret)
848 goto out;
f453ba04 849
6bfc56aa 850 encoder->dev = dev;
f453ba04
DA		 851 encoder->encoder_type = encoder_type;
852 encoder->funcs = funcs;
853
854 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
855 dev->mode_config.num_encoder++;
856
6bfc56aa 857 out:
84849903 858 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 859
860 return ret;
f453ba04
DA		 861}
862EXPORT_SYMBOL(drm_encoder_init);
863
864void drm_encoder_cleanup(struct drm_encoder *encoder)
865{
866 struct drm_device *dev = encoder->dev;
84849903 867 drm_modeset_lock_all(dev);
f453ba04
DA		 868 drm_mode_object_put(dev, &encoder->base);
869 list_del(&encoder->head);
6380c509 870 dev->mode_config.num_encoder--;
84849903 871 drm_modeset_unlock_all(dev);
f453ba04
DA		 872}
873EXPORT_SYMBOL(drm_encoder_cleanup);
874
35f2c3ae
VS		 875/**
876 * drm_plane_init - Initialise a new plane object
877 * @dev: DRM device
878 * @plane: plane object to init
879 * @possible_crtcs: bitmask of possible CRTCs
880 * @funcs: callbacks for the new plane
881 * @formats: array of supported formats (%DRM_FORMAT_*)
882 * @format_count: number of elements in @formats
883 * @priv: plane is private (hidden from userspace)?
884 *
885 * Inits a new object created as base part of a driver plane object.
886 *
887 * RETURNS:
888 * Zero on success, error code on failure.
889 */
8cf5c917
JB		 890int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
891 unsigned long possible_crtcs,
892 const struct drm_plane_funcs *funcs,
0a7eb243
RC		 893 const uint32_t *formats, uint32_t format_count,
894 bool priv)
8cf5c917 895{
6bfc56aa
VS		 896 int ret;
897
84849903 898 drm_modeset_lock_all(dev);
8cf5c917 899
6bfc56aa
VS		 900 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
901 if (ret)
902 goto out;
903
4d93914a 904 plane->base.properties = &plane->properties;
8cf5c917 905 plane->dev = dev;
8cf5c917
JB		 906 plane->funcs = funcs;
907 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
908 GFP_KERNEL);
909 if (!plane->format_types) {
910 DRM_DEBUG_KMS("out of memory when allocating plane\n");
911 drm_mode_object_put(dev, &plane->base);
6bfc56aa
VS		 912 ret = -ENOMEM;
913 goto out;
8cf5c917
JB		 914 }
915
308e5bcb 916 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 917 plane->format_count = format_count;
918 plane->possible_crtcs = possible_crtcs;
919
0a7eb243
RC		 920 /* private planes are not exposed to userspace, but depending on
921 * display hardware, might be convenient to allow sharing programming
922 * for the scanout engine with the crtc implementation.
923 */
924 if (!priv) {
925 list_add_tail(&plane->head, &dev->mode_config.plane_list);
926 dev->mode_config.num_plane++;
927 } else {
928 INIT_LIST_HEAD(&plane->head);
929 }
8cf5c917 930
6bfc56aa 931 out:
84849903 932 drm_modeset_unlock_all(dev);
8cf5c917 933
6bfc56aa 934 return ret;
8cf5c917
JB		 935}
936EXPORT_SYMBOL(drm_plane_init);
937
35f2c3ae
VS		 938/**
939 * drm_plane_cleanup - Clean up the core plane usage
940 * @plane: plane to cleanup
941 *
942 * This function cleans up @plane and removes it from the DRM mode setting
943 * core. Note that the function does *not* free the plane structure itself,
944 * this is the responsibility of the caller.
945 */
8cf5c917
JB		 946void drm_plane_cleanup(struct drm_plane *plane)
947{
948 struct drm_device *dev = plane->dev;
949
84849903 950 drm_modeset_lock_all(dev);
8cf5c917
JB		 951 kfree(plane->format_types);
952 drm_mode_object_put(dev, &plane->base);
0a7eb243
RC		 953 /* if not added to a list, it must be a private plane */
954 if (!list_empty(&plane->head)) {
955 list_del(&plane->head);
956 dev->mode_config.num_plane--;
957 }
84849903 958 drm_modeset_unlock_all(dev);
8cf5c917
JB		 959}
960EXPORT_SYMBOL(drm_plane_cleanup);
961
35f2c3ae
VS		 962/**
963 * drm_plane_force_disable - Forcibly disable a plane
964 * @plane: plane to disable
965 *
966 * Forces the plane to be disabled.
967 *
968 * Used when the plane's current framebuffer is destroyed,
969 * and when restoring fbdev mode.
970 */
9125e618
VS		 971void drm_plane_force_disable(struct drm_plane *plane)
972{
973 int ret;
974
975 if (!plane->fb)
976 return;
977
978 ret = plane->funcs->disable_plane(plane);
979 if (ret)
980 DRM_ERROR("failed to disable plane with busy fb\n");
981 /* disconnect the plane from the fb and crtc: */
982 __drm_framebuffer_unreference(plane->fb);
983 plane->fb = NULL;
984 plane->crtc = NULL;
985}
986EXPORT_SYMBOL(drm_plane_force_disable);
987
f453ba04
DA		 988/**
989 * drm_mode_create - create a new display mode
990 * @dev: DRM device
991 *
f453ba04
DA		 992 * Create a new drm_display_mode, give it an ID, and return it.
993 *
994 * RETURNS:
995 * Pointer to new mode on success, NULL on error.
996 */
997struct drm_display_mode *drm_mode_create(struct drm_device *dev)
998{
999 struct drm_display_mode *nmode;
1000
1001 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
1002 if (!nmode)
1003 return NULL;
1004
6bfc56aa
VS		 1005 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
1006 kfree(nmode);
1007 return NULL;
1008 }
1009
f453ba04
DA		 1010 return nmode;
1011}
1012EXPORT_SYMBOL(drm_mode_create);
1013
1014/**
1015 * drm_mode_destroy - remove a mode
1016 * @dev: DRM device
1017 * @mode: mode to remove
1018 *
f453ba04
DA		 1019 * Free @mode's unique identifier, then free it.
1020 */
1021void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
1022{
ee34ab5b
VS		 1023 if (!mode)
1024 return;
1025
f453ba04
DA		 1026 drm_mode_object_put(dev, &mode->base);
1027
1028 kfree(mode);
1029}
1030EXPORT_SYMBOL(drm_mode_destroy);
1031
1032static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
1033{
1034 struct drm_property *edid;
1035 struct drm_property *dpms;
f453ba04
DA		 1036
1037 /*
1038 * Standard properties (apply to all connectors)
1039 */
1040 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
1041 DRM_MODE_PROP_IMMUTABLE,
1042 "EDID", 0);
1043 dev->mode_config.edid_property = edid;
1044
4a67d391
SH		 1045 dpms = drm_property_create_enum(dev, 0,
1046 "DPMS", drm_dpms_enum_list,
1047 ARRAY_SIZE(drm_dpms_enum_list));
f453ba04
DA		 1048 dev->mode_config.dpms_property = dpms;
1049
1050 return 0;
1051}
1052
1053/**
1054 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1055 * @dev: DRM device
1056 *
1057 * Called by a driver the first time a DVI-I connector is made.
1058 */
1059int drm_mode_create_dvi_i_properties(struct drm_device *dev)
1060{
1061 struct drm_property *dvi_i_selector;
1062 struct drm_property *dvi_i_subconnector;
f453ba04
DA		 1063
1064 if (dev->mode_config.dvi_i_select_subconnector_property)
1065 return 0;
1066
1067 dvi_i_selector =
4a67d391 1068 drm_property_create_enum(dev, 0,
f453ba04 1069 "select subconnector",
4a67d391 1070 drm_dvi_i_select_enum_list,
f453ba04 1071 ARRAY_SIZE(drm_dvi_i_select_enum_list));
f453ba04
DA		 1072 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
1073
4a67d391 1074 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
f453ba04 1075 "subconnector",
4a67d391 1076 drm_dvi_i_subconnector_enum_list,
f453ba04 1077 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
f453ba04
DA		 1078 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
1079
1080 return 0;
1081}
1082EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
1083
1084/**
1085 * drm_create_tv_properties - create TV specific connector properties
1086 * @dev: DRM device
1087 * @num_modes: number of different TV formats (modes) supported
1088 * @modes: array of pointers to strings containing name of each format
1089 *
1090 * Called by a driver's TV initialization routine, this function creates
1091 * the TV specific connector properties for a given device. Caller is
1092 * responsible for allocating a list of format names and passing them to
1093 * this routine.
1094 */
1095int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1096 char *modes[])
1097{
1098 struct drm_property *tv_selector;
1099 struct drm_property *tv_subconnector;
1100 int i;
1101
1102 if (dev->mode_config.tv_select_subconnector_property)
1103 return 0;
1104
1105 /*
1106 * Basic connector properties
1107 */
4a67d391 1108 tv_selector = drm_property_create_enum(dev, 0,
f453ba04 1109 "select subconnector",
4a67d391 1110 drm_tv_select_enum_list,
f453ba04 1111 ARRAY_SIZE(drm_tv_select_enum_list));
f453ba04
DA		 1112 dev->mode_config.tv_select_subconnector_property = tv_selector;
1113
1114 tv_subconnector =
4a67d391
SH		 1115 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1116 "subconnector",
1117 drm_tv_subconnector_enum_list,
f453ba04 1118 ARRAY_SIZE(drm_tv_subconnector_enum_list));
f453ba04
DA		 1119 dev->mode_config.tv_subconnector_property = tv_subconnector;
1120
1121 /*
1122 * Other, TV specific properties: margins & TV modes.
1123 */
1124 dev->mode_config.tv_left_margin_property =
d9bc3c02 1125 drm_property_create_range(dev, 0, "left margin", 0, 100);
f453ba04
DA		 1126
1127 dev->mode_config.tv_right_margin_property =
d9bc3c02 1128 drm_property_create_range(dev, 0, "right margin", 0, 100);
f453ba04
DA		 1129
1130 dev->mode_config.tv_top_margin_property =
d9bc3c02 1131 drm_property_create_range(dev, 0, "top margin", 0, 100);
f453ba04
DA		 1132
1133 dev->mode_config.tv_bottom_margin_property =
d9bc3c02 1134 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
f453ba04
DA		 1135
1136 dev->mode_config.tv_mode_property =
1137 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1138 "mode", num_modes);
1139 for (i = 0; i < num_modes; i++)
1140 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1141 i, modes[i]);
1142
b6b7902e 1143 dev->mode_config.tv_brightness_property =
d9bc3c02 1144 drm_property_create_range(dev, 0, "brightness", 0, 100);
b6b7902e
FJ		 1145
1146 dev->mode_config.tv_contrast_property =
d9bc3c02 1147 drm_property_create_range(dev, 0, "contrast", 0, 100);
b6b7902e
FJ		 1148
1149 dev->mode_config.tv_flicker_reduction_property =
d9bc3c02 1150 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
b6b7902e 1151
a75f0236 1152 dev->mode_config.tv_overscan_property =
d9bc3c02 1153 drm_property_create_range(dev, 0, "overscan", 0, 100);
a75f0236
FJ		 1154
1155 dev->mode_config.tv_saturation_property =
d9bc3c02 1156 drm_property_create_range(dev, 0, "saturation", 0, 100);
a75f0236
FJ		 1157
1158 dev->mode_config.tv_hue_property =
d9bc3c02 1159 drm_property_create_range(dev, 0, "hue", 0, 100);
a75f0236 1160
f453ba04
DA		 1161 return 0;
1162}
1163EXPORT_SYMBOL(drm_mode_create_tv_properties);
1164
1165/**
1166 * drm_mode_create_scaling_mode_property - create scaling mode property
1167 * @dev: DRM device
1168 *
1169 * Called by a driver the first time it's needed, must be attached to desired
1170 * connectors.
1171 */
1172int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1173{
1174 struct drm_property *scaling_mode;
f453ba04
DA		 1175
1176 if (dev->mode_config.scaling_mode_property)
1177 return 0;
1178
1179 scaling_mode =
4a67d391
SH		 1180 drm_property_create_enum(dev, 0, "scaling mode",
1181 drm_scaling_mode_enum_list,
f453ba04 1182 ARRAY_SIZE(drm_scaling_mode_enum_list));
f453ba04
DA		 1183
1184 dev->mode_config.scaling_mode_property = scaling_mode;
1185
1186 return 0;
1187}
1188EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1189
884840aa
JB		 1190/**
1191 * drm_mode_create_dirty_property - create dirty property
1192 * @dev: DRM device
1193 *
1194 * Called by a driver the first time it's needed, must be attached to desired
1195 * connectors.
1196 */
1197int drm_mode_create_dirty_info_property(struct drm_device *dev)
1198{
1199 struct drm_property *dirty_info;
884840aa
JB		 1200
1201 if (dev->mode_config.dirty_info_property)
1202 return 0;
1203
1204 dirty_info =
4a67d391 1205 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
884840aa 1206 "dirty",
4a67d391 1207 drm_dirty_info_enum_list,
884840aa 1208 ARRAY_SIZE(drm_dirty_info_enum_list));
884840aa
JB		 1209 dev->mode_config.dirty_info_property = dirty_info;
1210
1211 return 0;
1212}
1213EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1214
ea9cbb06 1215static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
f453ba04
DA		 1216{
1217 uint32_t total_objects = 0;
1218
1219 total_objects += dev->mode_config.num_crtc;
1220 total_objects += dev->mode_config.num_connector;
1221 total_objects += dev->mode_config.num_encoder;
3b336ec4 1222 total_objects += dev->mode_config.num_bridge;
f453ba04 1223
f453ba04
DA		 1224 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1225 if (!group->id_list)
1226 return -ENOMEM;
1227
1228 group->num_crtcs = 0;
1229 group->num_connectors = 0;
1230 group->num_encoders = 0;
3b336ec4 1231 group->num_bridges = 0;
f453ba04
DA		 1232 return 0;
1233}
1234
1235int drm_mode_group_init_legacy_group(struct drm_device *dev,
1236 struct drm_mode_group *group)
1237{
1238 struct drm_crtc *crtc;
1239 struct drm_encoder *encoder;
1240 struct drm_connector *connector;
3b336ec4 1241 struct drm_bridge *bridge;
f453ba04
DA		 1242 int ret;
1243
1244 if ((ret = drm_mode_group_init(dev, group)))
1245 return ret;
1246
1247 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1248 group->id_list[group->num_crtcs++] = crtc->base.id;
1249
1250 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1251 group->id_list[group->num_crtcs + group->num_encoders++] =
1252 encoder->base.id;
1253
1254 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1255 group->id_list[group->num_crtcs + group->num_encoders +
1256 group->num_connectors++] = connector->base.id;
1257
3b336ec4
SP		 1258 list_for_each_entry(bridge, &dev->mode_config.bridge_list, head)
1259 group->id_list[group->num_crtcs + group->num_encoders +
1260 group->num_connectors + group->num_bridges++] =
1261 bridge->base.id;
1262
f453ba04
DA		 1263 return 0;
1264}
9c1dfc55 1265EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
f453ba04 1266
f453ba04
DA		 1267/**
1268 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1269 * @out: drm_mode_modeinfo struct to return to the user
1270 * @in: drm_display_mode to use
1271 *
f453ba04
DA		 1272 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1273 * the user.
1274 */
93bbf6db
VS		 1275static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1276 const struct drm_display_mode *in)
f453ba04 1277{
e36fae38
VS		 1278 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1279 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1280 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1281 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1282 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1283 "timing values too large for mode info\n");
1284
f453ba04
DA		 1285 out->clock = in->clock;
1286 out->hdisplay = in->hdisplay;
1287 out->hsync_start = in->hsync_start;
1288 out->hsync_end = in->hsync_end;
1289 out->htotal = in->htotal;
1290 out->hskew = in->hskew;
1291 out->vdisplay = in->vdisplay;
1292 out->vsync_start = in->vsync_start;
1293 out->vsync_end = in->vsync_end;
1294 out->vtotal = in->vtotal;
1295 out->vscan = in->vscan;
1296 out->vrefresh = in->vrefresh;
1297 out->flags = in->flags;
1298 out->type = in->type;
1299 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1300 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1301}
1302
1303/**
1304 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1305 * @out: drm_display_mode to return to the user
1306 * @in: drm_mode_modeinfo to use
1307 *
f453ba04
DA		 1308 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1309 * the caller.
90367bf6
VS		 1310 *
1311 * RETURNS:
1312 * Zero on success, errno on failure.
f453ba04 1313 */
93bbf6db
VS		 1314static int drm_crtc_convert_umode(struct drm_display_mode *out,
1315 const struct drm_mode_modeinfo *in)
f453ba04 1316{
90367bf6
VS		 1317 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1318 return -ERANGE;
1319
f453ba04
DA		 1320 out->clock = in->clock;
1321 out->hdisplay = in->hdisplay;
1322 out->hsync_start = in->hsync_start;
1323 out->hsync_end = in->hsync_end;
1324 out->htotal = in->htotal;
1325 out->hskew = in->hskew;
1326 out->vdisplay = in->vdisplay;
1327 out->vsync_start = in->vsync_start;
1328 out->vsync_end = in->vsync_end;
1329 out->vtotal = in->vtotal;
1330 out->vscan = in->vscan;
1331 out->vrefresh = in->vrefresh;
1332 out->flags = in->flags;
1333 out->type = in->type;
1334 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1335 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
90367bf6
VS		 1336
1337 return 0;
f453ba04
DA		 1338}
1339
1340/**
1341 * drm_mode_getresources - get graphics configuration
065a50ed
DV		 1342 * @dev: drm device for the ioctl
1343 * @data: data pointer for the ioctl
1344 * @file_priv: drm file for the ioctl call
f453ba04 1345 *
f453ba04
DA		 1346 * Construct a set of configuration description structures and return
1347 * them to the user, including CRTC, connector and framebuffer configuration.
1348 *
1349 * Called by the user via ioctl.
1350 *
1351 * RETURNS:
1352 * Zero on success, errno on failure.
1353 */
1354int drm_mode_getresources(struct drm_device *dev, void *data,
1355 struct drm_file *file_priv)
1356{
1357 struct drm_mode_card_res *card_res = data;
1358 struct list_head *lh;
1359 struct drm_framebuffer *fb;
1360 struct drm_connector *connector;
1361 struct drm_crtc *crtc;
1362 struct drm_encoder *encoder;
1363 int ret = 0;
1364 int connector_count = 0;
1365 int crtc_count = 0;
1366 int fb_count = 0;
1367 int encoder_count = 0;
1368 int copied = 0, i;
1369 uint32_t __user *fb_id;
1370 uint32_t __user *crtc_id;
1371 uint32_t __user *connector_id;
1372 uint32_t __user *encoder_id;
1373 struct drm_mode_group *mode_group;
1374
fb3b06c8
DA		 1375 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1376 return -EINVAL;
1377
f453ba04 1378
4b096ac1 1379 mutex_lock(&file_priv->fbs_lock);
f453ba04
DA		 1380 /*
1381 * For the non-control nodes we need to limit the list of resources
1382 * by IDs in the group list for this node
1383 */
1384 list_for_each(lh, &file_priv->fbs)
1385 fb_count++;
1386
4b096ac1
DV		 1387 /* handle this in 4 parts */
1388 /* FBs */
1389 if (card_res->count_fbs >= fb_count) {
1390 copied = 0;
1391 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1392 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1393 if (put_user(fb->base.id, fb_id + copied)) {
1394 mutex_unlock(&file_priv->fbs_lock);
1395 return -EFAULT;
1396 }
1397 copied++;
1398 }
1399 }
1400 card_res->count_fbs = fb_count;
1401 mutex_unlock(&file_priv->fbs_lock);
1402
1403 drm_modeset_lock_all(dev);
f453ba04
DA		 1404 mode_group = &file_priv->master->minor->mode_group;
1405 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1406
1407 list_for_each(lh, &dev->mode_config.crtc_list)
1408 crtc_count++;
1409
1410 list_for_each(lh, &dev->mode_config.connector_list)
1411 connector_count++;
1412
1413 list_for_each(lh, &dev->mode_config.encoder_list)
1414 encoder_count++;
1415 } else {
1416
1417 crtc_count = mode_group->num_crtcs;
1418 connector_count = mode_group->num_connectors;
1419 encoder_count = mode_group->num_encoders;
1420 }
1421
1422 card_res->max_height = dev->mode_config.max_height;
1423 card_res->min_height = dev->mode_config.min_height;
1424 card_res->max_width = dev->mode_config.max_width;
1425 card_res->min_width = dev->mode_config.min_width;
1426
f453ba04
DA		 1427 /* CRTCs */
1428 if (card_res->count_crtcs >= crtc_count) {
1429 copied = 0;
1430 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1431 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1432 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1433 head) {
9440106b 1434 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1435 if (put_user(crtc->base.id, crtc_id + copied)) {
1436 ret = -EFAULT;
1437 goto out;
1438 }
1439 copied++;
1440 }
1441 } else {
1442 for (i = 0; i < mode_group->num_crtcs; i++) {
1443 if (put_user(mode_group->id_list[i],
1444 crtc_id + copied)) {
1445 ret = -EFAULT;
1446 goto out;
1447 }
1448 copied++;
1449 }
1450 }
1451 }
1452 card_res->count_crtcs = crtc_count;
1453
1454 /* Encoders */
1455 if (card_res->count_encoders >= encoder_count) {
1456 copied = 0;
1457 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1458 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1459 list_for_each_entry(encoder,
1460 &dev->mode_config.encoder_list,
1461 head) {
9440106b
JG		 1462 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1463 drm_get_encoder_name(encoder));
f453ba04
DA		 1464 if (put_user(encoder->base.id, encoder_id +
1465 copied)) {
1466 ret = -EFAULT;
1467 goto out;
1468 }
1469 copied++;
1470 }
1471 } else {
1472 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1473 if (put_user(mode_group->id_list[i],
1474 encoder_id + copied)) {
1475 ret = -EFAULT;
1476 goto out;
1477 }
1478 copied++;
1479 }
1480
1481 }
1482 }
1483 card_res->count_encoders = encoder_count;
1484
1485 /* Connectors */
1486 if (card_res->count_connectors >= connector_count) {
1487 copied = 0;
1488 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1489 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1490 list_for_each_entry(connector,
1491 &dev->mode_config.connector_list,
1492 head) {
9440106b
JG		 1493 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1494 connector->base.id,
1495 drm_get_connector_name(connector));
f453ba04
DA		 1496 if (put_user(connector->base.id,
1497 connector_id + copied)) {
1498 ret = -EFAULT;
1499 goto out;
1500 }
1501 copied++;
1502 }
1503 } else {
1504 int start = mode_group->num_crtcs +
1505 mode_group->num_encoders;
1506 for (i = start; i < start + mode_group->num_connectors; i++) {
1507 if (put_user(mode_group->id_list[i],
1508 connector_id + copied)) {
1509 ret = -EFAULT;
1510 goto out;
1511 }
1512 copied++;
1513 }
1514 }
1515 }
1516 card_res->count_connectors = connector_count;
1517
9440106b 1518 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1519 card_res->count_connectors, card_res->count_encoders);
1520
1521out:
84849903 1522 drm_modeset_unlock_all(dev);
f453ba04
DA		 1523 return ret;
1524}
1525
1526/**
1527 * drm_mode_getcrtc - get CRTC configuration
065a50ed
DV		 1528 * @dev: drm device for the ioctl
1529 * @data: data pointer for the ioctl
1530 * @file_priv: drm file for the ioctl call
f453ba04 1531 *
f453ba04
DA		 1532 * Construct a CRTC configuration structure to return to the user.
1533 *
1534 * Called by the user via ioctl.
1535 *
1536 * RETURNS:
1537 * Zero on success, errno on failure.
1538 */
1539int drm_mode_getcrtc(struct drm_device *dev,
1540 void *data, struct drm_file *file_priv)
1541{
1542 struct drm_mode_crtc *crtc_resp = data;
1543 struct drm_crtc *crtc;
1544 struct drm_mode_object *obj;
1545 int ret = 0;
1546
fb3b06c8
DA		 1547 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1548 return -EINVAL;
1549
84849903 1550 drm_modeset_lock_all(dev);
f453ba04
DA		 1551
1552 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1553 DRM_MODE_OBJECT_CRTC);
1554 if (!obj) {
1555 ret = -EINVAL;
1556 goto out;
1557 }
1558 crtc = obj_to_crtc(obj);
1559
1560 crtc_resp->x = crtc->x;
1561 crtc_resp->y = crtc->y;
1562 crtc_resp->gamma_size = crtc->gamma_size;
1563 if (crtc->fb)
1564 crtc_resp->fb_id = crtc->fb->base.id;
1565 else
1566 crtc_resp->fb_id = 0;
1567
1568 if (crtc->enabled) {
1569
1570 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1571 crtc_resp->mode_valid = 1;
1572
1573 } else {
1574 crtc_resp->mode_valid = 0;
1575 }
1576
1577out:
84849903 1578 drm_modeset_unlock_all(dev);
f453ba04
DA		 1579 return ret;
1580}
1581
1582/**
1583 * drm_mode_getconnector - get connector configuration
065a50ed
DV		 1584 * @dev: drm device for the ioctl
1585 * @data: data pointer for the ioctl
1586 * @file_priv: drm file for the ioctl call
f453ba04 1587 *
f453ba04
DA		 1588 * Construct a connector configuration structure to return to the user.
1589 *
1590 * Called by the user via ioctl.
1591 *
1592 * RETURNS:
1593 * Zero on success, errno on failure.
1594 */
1595int drm_mode_getconnector(struct drm_device *dev, void *data,
1596 struct drm_file *file_priv)
1597{
1598 struct drm_mode_get_connector *out_resp = data;
1599 struct drm_mode_object *obj;
1600 struct drm_connector *connector;
1601 struct drm_display_mode *mode;
1602 int mode_count = 0;
1603 int props_count = 0;
1604 int encoders_count = 0;
1605 int ret = 0;
1606 int copied = 0;
1607 int i;
1608 struct drm_mode_modeinfo u_mode;
1609 struct drm_mode_modeinfo __user *mode_ptr;
1610 uint32_t __user *prop_ptr;
1611 uint64_t __user *prop_values;
1612 uint32_t __user *encoder_ptr;
1613
fb3b06c8
DA		 1614 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1615 return -EINVAL;
1616
f453ba04
DA		 1617 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1618
9440106b 1619 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04 1620
7b24056b 1621 mutex_lock(&dev->mode_config.mutex);
f453ba04
DA		 1622
1623 obj = drm_mode_object_find(dev, out_resp->connector_id,
1624 DRM_MODE_OBJECT_CONNECTOR);
1625 if (!obj) {
1626 ret = -EINVAL;
1627 goto out;
1628 }
1629 connector = obj_to_connector(obj);
1630
7f88a9be 1631 props_count = connector->properties.count;
f453ba04
DA		 1632
1633 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1634 if (connector->encoder_ids[i] != 0) {
1635 encoders_count++;
1636 }
1637 }
1638
1639 if (out_resp->count_modes == 0) {
1640 connector->funcs->fill_modes(connector,
1641 dev->mode_config.max_width,
1642 dev->mode_config.max_height);
1643 }
1644
1645 /* delayed so we get modes regardless of pre-fill_modes state */
1646 list_for_each_entry(mode, &connector->modes, head)
1647 mode_count++;
1648
1649 out_resp->connector_id = connector->base.id;
1650 out_resp->connector_type = connector->connector_type;
1651 out_resp->connector_type_id = connector->connector_type_id;
1652 out_resp->mm_width = connector->display_info.width_mm;
1653 out_resp->mm_height = connector->display_info.height_mm;
1654 out_resp->subpixel = connector->display_info.subpixel_order;
1655 out_resp->connection = connector->status;
1656 if (connector->encoder)
1657 out_resp->encoder_id = connector->encoder->base.id;
1658 else
1659 out_resp->encoder_id = 0;
1660
1661 /*
1662 * This ioctl is called twice, once to determine how much space is
1663 * needed, and the 2nd time to fill it.
1664 */
1665 if ((out_resp->count_modes >= mode_count) && mode_count) {
1666 copied = 0;
81f6c7f8 1667 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04
DA		 1668 list_for_each_entry(mode, &connector->modes, head) {
1669 drm_crtc_convert_to_umode(&u_mode, mode);
1670 if (copy_to_user(mode_ptr + copied,
1671 &u_mode, sizeof(u_mode))) {
1672 ret = -EFAULT;
1673 goto out;
1674 }
1675 copied++;
1676 }
1677 }
1678 out_resp->count_modes = mode_count;
1679
1680 if ((out_resp->count_props >= props_count) && props_count) {
1681 copied = 0;
81f6c7f8
VS		 1682 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1683 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
7f88a9be
PZ		 1684 for (i = 0; i < connector->properties.count; i++) {
1685 if (put_user(connector->properties.ids[i],
1686 prop_ptr + copied)) {
1687 ret = -EFAULT;
1688 goto out;
1689 }
f453ba04 1690
7f88a9be
PZ		 1691 if (put_user(connector->properties.values[i],
1692 prop_values + copied)) {
1693 ret = -EFAULT;
1694 goto out;
f453ba04 1695 }
7f88a9be 1696 copied++;
f453ba04
DA		 1697 }
1698 }
1699 out_resp->count_props = props_count;
1700
1701 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1702 copied = 0;
81f6c7f8 1703 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1704 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1705 if (connector->encoder_ids[i] != 0) {
1706 if (put_user(connector->encoder_ids[i],
1707 encoder_ptr + copied)) {
1708 ret = -EFAULT;
1709 goto out;
1710 }
1711 copied++;
1712 }
1713 }
1714 }
1715 out_resp->count_encoders = encoders_count;
1716
1717out:
7b24056b
DV		 1718 mutex_unlock(&dev->mode_config.mutex);
1719
f453ba04
DA		 1720 return ret;
1721}
1722
1723int drm_mode_getencoder(struct drm_device *dev, void *data,
1724 struct drm_file *file_priv)
1725{
1726 struct drm_mode_get_encoder *enc_resp = data;
1727 struct drm_mode_object *obj;
1728 struct drm_encoder *encoder;
1729 int ret = 0;
1730
fb3b06c8
DA		 1731 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1732 return -EINVAL;
1733
84849903 1734 drm_modeset_lock_all(dev);
f453ba04
DA		 1735 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1736 DRM_MODE_OBJECT_ENCODER);
1737 if (!obj) {
1738 ret = -EINVAL;
1739 goto out;
1740 }
1741 encoder = obj_to_encoder(obj);
1742
1743 if (encoder->crtc)
1744 enc_resp->crtc_id = encoder->crtc->base.id;
1745 else
1746 enc_resp->crtc_id = 0;
1747 enc_resp->encoder_type = encoder->encoder_type;
1748 enc_resp->encoder_id = encoder->base.id;
1749 enc_resp->possible_crtcs = encoder->possible_crtcs;
1750 enc_resp->possible_clones = encoder->possible_clones;
1751
1752out:
84849903 1753 drm_modeset_unlock_all(dev);
f453ba04
DA		 1754 return ret;
1755}
1756
8cf5c917
JB		 1757/**
1758 * drm_mode_getplane_res - get plane info
1759 * @dev: DRM device
1760 * @data: ioctl data
1761 * @file_priv: DRM file info
1762 *
1763 * Return an plane count and set of IDs.
1764 */
1765int drm_mode_getplane_res(struct drm_device *dev, void *data,
1766 struct drm_file *file_priv)
1767{
1768 struct drm_mode_get_plane_res *plane_resp = data;
1769 struct drm_mode_config *config;
1770 struct drm_plane *plane;
1771 uint32_t __user *plane_ptr;
1772 int copied = 0, ret = 0;
1773
1774 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1775 return -EINVAL;
1776
84849903 1777 drm_modeset_lock_all(dev);
8cf5c917
JB		 1778 config = &dev->mode_config;
1779
1780 /*
1781 * This ioctl is called twice, once to determine how much space is
1782 * needed, and the 2nd time to fill it.
1783 */
1784 if (config->num_plane &&
1785 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1786 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1787
1788 list_for_each_entry(plane, &config->plane_list, head) {
1789 if (put_user(plane->base.id, plane_ptr + copied)) {
1790 ret = -EFAULT;
1791 goto out;
1792 }
1793 copied++;
1794 }
1795 }
1796 plane_resp->count_planes = config->num_plane;
1797
1798out:
84849903 1799 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1800 return ret;
1801}
1802
1803/**
1804 * drm_mode_getplane - get plane info
1805 * @dev: DRM device
1806 * @data: ioctl data
1807 * @file_priv: DRM file info
1808 *
1809 * Return plane info, including formats supported, gamma size, any
1810 * current fb, etc.
1811 */
1812int drm_mode_getplane(struct drm_device *dev, void *data,
1813 struct drm_file *file_priv)
1814{
1815 struct drm_mode_get_plane *plane_resp = data;
1816 struct drm_mode_object *obj;
1817 struct drm_plane *plane;
1818 uint32_t __user *format_ptr;
1819 int ret = 0;
1820
1821 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1822 return -EINVAL;
1823
84849903 1824 drm_modeset_lock_all(dev);
8cf5c917
JB		 1825 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1826 DRM_MODE_OBJECT_PLANE);
1827 if (!obj) {
1828 ret = -ENOENT;
1829 goto out;
1830 }
1831 plane = obj_to_plane(obj);
1832
1833 if (plane->crtc)
1834 plane_resp->crtc_id = plane->crtc->base.id;
1835 else
1836 plane_resp->crtc_id = 0;
1837
1838 if (plane->fb)
1839 plane_resp->fb_id = plane->fb->base.id;
1840 else
1841 plane_resp->fb_id = 0;
1842
1843 plane_resp->plane_id = plane->base.id;
1844 plane_resp->possible_crtcs = plane->possible_crtcs;
778ad903 1845 plane_resp->gamma_size = 0;
8cf5c917
JB		 1846
1847 /*
1848 * This ioctl is called twice, once to determine how much space is
1849 * needed, and the 2nd time to fill it.
1850 */
1851 if (plane->format_count &&
1852 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1853 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1854 if (copy_to_user(format_ptr,
1855 plane->format_types,
1856 sizeof(uint32_t) * plane->format_count)) {
1857 ret = -EFAULT;
1858 goto out;
1859 }
1860 }
1861 plane_resp->count_format_types = plane->format_count;
1862
1863out:
84849903 1864 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1865 return ret;
1866}
1867
1868/**
1869 * drm_mode_setplane - set up or tear down an plane
1870 * @dev: DRM device
1871 * @data: ioctl data*
065a50ed 1872 * @file_priv: DRM file info
8cf5c917
JB		 1873 *
1874 * Set plane info, including placement, fb, scaling, and other factors.
1875 * Or pass a NULL fb to disable.
1876 */
1877int drm_mode_setplane(struct drm_device *dev, void *data,
1878 struct drm_file *file_priv)
1879{
1880 struct drm_mode_set_plane *plane_req = data;
1881 struct drm_mode_object *obj;
1882 struct drm_plane *plane;
1883 struct drm_crtc *crtc;
6c2a7532 1884 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
8cf5c917 1885 int ret = 0;
42ef8789 1886 unsigned int fb_width, fb_height;
62443be6 1887 int i;
8cf5c917
JB		 1888
1889 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1890 return -EINVAL;
1891
8cf5c917
JB		 1892 /*
1893 * First, find the plane, crtc, and fb objects. If not available,
1894 * we don't bother to call the driver.
1895 */
1896 obj = drm_mode_object_find(dev, plane_req->plane_id,
1897 DRM_MODE_OBJECT_PLANE);
1898 if (!obj) {
1899 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1900 plane_req->plane_id);
6c2a7532 1901 return -ENOENT;
8cf5c917
JB		 1902 }
1903 plane = obj_to_plane(obj);
1904
1905 /* No fb means shut it down */
1906 if (!plane_req->fb_id) {
6c2a7532
DV		 1907 drm_modeset_lock_all(dev);
1908 old_fb = plane->fb;
8cf5c917 1909 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1910 plane->crtc = NULL;
1911 plane->fb = NULL;
6c2a7532 1912 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1913 goto out;
1914 }
1915
1916 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1917 DRM_MODE_OBJECT_CRTC);
1918 if (!obj) {
1919 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1920 plane_req->crtc_id);
1921 ret = -ENOENT;
1922 goto out;
1923 }
1924 crtc = obj_to_crtc(obj);
1925
786b99ed
DV		 1926 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1927 if (!fb) {
8cf5c917
JB		 1928 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1929 plane_req->fb_id);
1930 ret = -ENOENT;
1931 goto out;
1932 }
8cf5c917 1933
62443be6
VS		 1934 /* Check whether this plane supports the fb pixel format. */
1935 for (i = 0; i < plane->format_count; i++)
1936 if (fb->pixel_format == plane->format_types[i])
1937 break;
1938 if (i == plane->format_count) {
6ba6d03e
VS		 1939 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1940 drm_get_format_name(fb->pixel_format));
62443be6
VS		 1941 ret = -EINVAL;
1942 goto out;
1943 }
1944
42ef8789
VS		 1945 fb_width = fb->width << 16;
1946 fb_height = fb->height << 16;
1947
1948 /* Make sure source coordinates are inside the fb. */
1949 if (plane_req->src_w > fb_width ||
1950 plane_req->src_x > fb_width - plane_req->src_w ||
1951 plane_req->src_h > fb_height ||
1952 plane_req->src_y > fb_height - plane_req->src_h) {
1953 DRM_DEBUG_KMS("Invalid source coordinates "
1954 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1955 plane_req->src_w >> 16,
1956 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1957 plane_req->src_h >> 16,
1958 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1959 plane_req->src_x >> 16,
1960 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1961 plane_req->src_y >> 16,
1962 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1963 ret = -ENOSPC;
1964 goto out;
1965 }
1966
687a0400
VS		 1967 /* Give drivers some help against integer overflows */
1968 if (plane_req->crtc_w > INT_MAX ||
1969 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1970 plane_req->crtc_h > INT_MAX ||
1971 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1972 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1973 plane_req->crtc_w, plane_req->crtc_h,
1974 plane_req->crtc_x, plane_req->crtc_y);
1975 ret = -ERANGE;
1976 goto out;
1977 }
1978
6c2a7532 1979 drm_modeset_lock_all(dev);
8cf5c917
JB		 1980 ret = plane->funcs->update_plane(plane, crtc, fb,
1981 plane_req->crtc_x, plane_req->crtc_y,
1982 plane_req->crtc_w, plane_req->crtc_h,
1983 plane_req->src_x, plane_req->src_y,
1984 plane_req->src_w, plane_req->src_h);
1985 if (!ret) {
6c2a7532 1986 old_fb = plane->fb;
8cf5c917
JB		 1987 plane->crtc = crtc;
1988 plane->fb = fb;
35f8badc 1989 fb = NULL;
8cf5c917 1990 }
6c2a7532 1991 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1992
1993out:
6c2a7532
DV		 1994 if (fb)
1995 drm_framebuffer_unreference(fb);
1996 if (old_fb)
1997 drm_framebuffer_unreference(old_fb);
8cf5c917
JB		 1998
1999 return ret;
2000}
2001
2d13b679
DV		 2002/**
2003 * drm_mode_set_config_internal - helper to call ->set_config
2004 * @set: modeset config to set
2005 *
2006 * This is a little helper to wrap internal calls to the ->set_config driver
2007 * interface. The only thing it adds is correct refcounting dance.
2008 */
2009int drm_mode_set_config_internal(struct drm_mode_set *set)
2010{
2011 struct drm_crtc *crtc = set->crtc;
5cef29aa
DV		 2012 struct drm_framebuffer *fb;
2013 struct drm_crtc *tmp;
b0d12325
DV		 2014 int ret;
2015
5cef29aa
DV		 2016 /*
2017 * NOTE: ->set_config can also disable other crtcs (if we steal all
2018 * connectors from it), hence we need to refcount the fbs across all
2019 * crtcs. Atomic modeset will have saner semantics ...
2020 */
2021 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
2022 tmp->old_fb = tmp->fb;
2023
b0d12325 2024 fb = set->fb;
2d13b679 2025
b0d12325
DV		 2026 ret = crtc->funcs->set_config(set);
2027 if (ret == 0) {
cc85e121
DV		 2028 /* crtc->fb must be updated by ->set_config, enforces this. */
2029 WARN_ON(fb != crtc->fb);
5cef29aa 2030 }
cc85e121 2031
5cef29aa
DV		 2032 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
2033 if (tmp->fb)
2034 drm_framebuffer_reference(tmp->fb);
2035 if (tmp->old_fb)
2036 drm_framebuffer_unreference(tmp->old_fb);
b0d12325
DV		 2037 }
2038
2039 return ret;
2d13b679
DV		 2040}
2041EXPORT_SYMBOL(drm_mode_set_config_internal);
2042
f453ba04
DA		 2043/**
2044 * drm_mode_setcrtc - set CRTC configuration
065a50ed
DV		 2045 * @dev: drm device for the ioctl
2046 * @data: data pointer for the ioctl
2047 * @file_priv: drm file for the ioctl call
f453ba04 2048 *
f453ba04
DA		 2049 * Build a new CRTC configuration based on user request.
2050 *
2051 * Called by the user via ioctl.
2052 *
2053 * RETURNS:
2054 * Zero on success, errno on failure.
2055 */
2056int drm_mode_setcrtc(struct drm_device *dev, void *data,
2057 struct drm_file *file_priv)
2058{
2059 struct drm_mode_config *config = &dev->mode_config;
2060 struct drm_mode_crtc *crtc_req = data;
2061 struct drm_mode_object *obj;
6653cc8d 2062 struct drm_crtc *crtc;
f453ba04
DA		 2063 struct drm_connector **connector_set = NULL, *connector;
2064 struct drm_framebuffer *fb = NULL;
2065 struct drm_display_mode *mode = NULL;
2066 struct drm_mode_set set;
2067 uint32_t __user *set_connectors_ptr;
4a1b0714 2068 int ret;
f453ba04
DA		 2069 int i;
2070
fb3b06c8
DA		 2071 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2072 return -EINVAL;
2073
1d97e915
VS		 2074 /* For some reason crtc x/y offsets are signed internally. */
2075 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2076 return -ERANGE;
2077
84849903 2078 drm_modeset_lock_all(dev);
f453ba04
DA		 2079 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2080 DRM_MODE_OBJECT_CRTC);
2081 if (!obj) {
58367ed6 2082 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 2083 ret = -EINVAL;
2084 goto out;
2085 }
2086 crtc = obj_to_crtc(obj);
9440106b 2087 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 2088
2089 if (crtc_req->mode_valid) {
7c80e128 2090 int hdisplay, vdisplay;
f453ba04
DA		 2091 /* If we have a mode we need a framebuffer. */
2092 /* If we pass -1, set the mode with the currently bound fb */
2093 if (crtc_req->fb_id == -1) {
6653cc8d
VS		 2094 if (!crtc->fb) {
2095 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2096 ret = -EINVAL;
2097 goto out;
f453ba04 2098 }
6653cc8d 2099 fb = crtc->fb;
b0d12325
DV		 2100 /* Make refcounting symmetric with the lookup path. */
2101 drm_framebuffer_reference(fb);
f453ba04 2102 } else {
786b99ed
DV		 2103 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2104 if (!fb) {
58367ed6
ZY		 2105 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2106 crtc_req->fb_id);
f453ba04
DA		 2107 ret = -EINVAL;
2108 goto out;
2109 }
f453ba04
DA		 2110 }
2111
2112 mode = drm_mode_create(dev);
ee34ab5b
VS		 2113 if (!mode) {
2114 ret = -ENOMEM;
2115 goto out;
2116 }
2117
90367bf6
VS		 2118 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2119 if (ret) {
2120 DRM_DEBUG_KMS("Invalid mode\n");
2121 goto out;
2122 }
2123
f453ba04 2124 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
5f61bb42 2125
7c80e128
RC		 2126 hdisplay = mode->hdisplay;
2127 vdisplay = mode->vdisplay;
2128
2129 if (crtc->invert_dimensions)
2130 swap(hdisplay, vdisplay);
2131
2132 if (hdisplay > fb->width ||
2133 vdisplay > fb->height ||
2134 crtc_req->x > fb->width - hdisplay ||
2135 crtc_req->y > fb->height - vdisplay) {
2136 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2137 fb->width, fb->height,
2138 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2139 crtc->invert_dimensions ? " (inverted)" : "");
5f61bb42
VS		 2140 ret = -ENOSPC;
2141 goto out;
2142 }
f453ba04
DA		 2143 }
2144
2145 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 2146 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 2147 ret = -EINVAL;
2148 goto out;
2149 }
2150
7781de74 2151 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 2152 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 2153 crtc_req->count_connectors);
2154 ret = -EINVAL;
2155 goto out;
2156 }
2157
2158 if (crtc_req->count_connectors > 0) {
2159 u32 out_id;
2160
2161 /* Avoid unbounded kernel memory allocation */
2162 if (crtc_req->count_connectors > config->num_connector) {
2163 ret = -EINVAL;
2164 goto out;
2165 }
2166
2167 connector_set = kmalloc(crtc_req->count_connectors *
2168 sizeof(struct drm_connector *),
2169 GFP_KERNEL);
2170 if (!connector_set) {
2171 ret = -ENOMEM;
2172 goto out;
2173 }
2174
2175 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 2176 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 2177 if (get_user(out_id, &set_connectors_ptr[i])) {
2178 ret = -EFAULT;
2179 goto out;
2180 }
2181
2182 obj = drm_mode_object_find(dev, out_id,
2183 DRM_MODE_OBJECT_CONNECTOR);
2184 if (!obj) {
58367ed6
ZY		 2185 DRM_DEBUG_KMS("Connector id %d unknown\n",
2186 out_id);
f453ba04
DA		 2187 ret = -EINVAL;
2188 goto out;
2189 }
2190 connector = obj_to_connector(obj);
9440106b
JG		 2191 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2192 connector->base.id,
2193 drm_get_connector_name(connector));
f453ba04
DA		 2194
2195 connector_set[i] = connector;
2196 }
2197 }
2198
2199 set.crtc = crtc;
2200 set.x = crtc_req->x;
2201 set.y = crtc_req->y;
2202 set.mode = mode;
2203 set.connectors = connector_set;
2204 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 2205 set.fb = fb;
2d13b679 2206 ret = drm_mode_set_config_internal(&set);
f453ba04
DA		 2207
2208out:
b0d12325
DV		 2209 if (fb)
2210 drm_framebuffer_unreference(fb);
2211
f453ba04 2212 kfree(connector_set);
ee34ab5b 2213 drm_mode_destroy(dev, mode);
84849903 2214 drm_modeset_unlock_all(dev);
f453ba04
DA		 2215 return ret;
2216}
2217
4c813d4d
DA		 2218static int drm_mode_cursor_common(struct drm_device *dev,
2219 struct drm_mode_cursor2 *req,
2220 struct drm_file *file_priv)
f453ba04 2221{
f453ba04
DA		 2222 struct drm_mode_object *obj;
2223 struct drm_crtc *crtc;
2224 int ret = 0;
2225
fb3b06c8
DA		 2226 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2227 return -EINVAL;
2228
7c4eaca4 2229 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
f453ba04 2230 return -EINVAL;
f453ba04 2231
e0c8463a 2232 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 2233 if (!obj) {
58367ed6 2234 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
dac35663 2235 return -EINVAL;
f453ba04
DA		 2236 }
2237 crtc = obj_to_crtc(obj);
2238
dac35663 2239 mutex_lock(&crtc->mutex);
f453ba04 2240 if (req->flags & DRM_MODE_CURSOR_BO) {
4c813d4d 2241 if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
f453ba04
DA		 2242 ret = -ENXIO;
2243 goto out;
2244 }
2245 /* Turns off the cursor if handle is 0 */
4c813d4d
DA		 2246 if (crtc->funcs->cursor_set2)
2247 ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
2248 req->width, req->height, req->hot_x, req->hot_y);
2249 else
2250 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2251 req->width, req->height);
f453ba04
DA		 2252 }
2253
2254 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2255 if (crtc->funcs->cursor_move) {
2256 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2257 } else {
f453ba04
DA		 2258 ret = -EFAULT;
2259 goto out;
2260 }
2261 }
2262out:
dac35663
DV		 2263 mutex_unlock(&crtc->mutex);
2264
f453ba04 2265 return ret;
4c813d4d
DA		 2266
2267}
2268int drm_mode_cursor_ioctl(struct drm_device *dev,
2269 void *data, struct drm_file *file_priv)
2270{
2271 struct drm_mode_cursor *req = data;
2272 struct drm_mode_cursor2 new_req;
2273
2274 memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
2275 new_req.hot_x = new_req.hot_y = 0;
2276
2277 return drm_mode_cursor_common(dev, &new_req, file_priv);
2278}
2279
2280int drm_mode_cursor2_ioctl(struct drm_device *dev,
2281 void *data, struct drm_file *file_priv)
2282{
2283 struct drm_mode_cursor2 *req = data;
2284 return drm_mode_cursor_common(dev, req, file_priv);
f453ba04
DA		 2285}
2286
308e5bcb
JB		 2287/* Original addfb only supported RGB formats, so figure out which one */
2288uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2289{
2290 uint32_t fmt;
2291
2292 switch (bpp) {
2293 case 8:
d84f031b 2294 fmt = DRM_FORMAT_C8;
308e5bcb
JB		 2295 break;
2296 case 16:
2297 if (depth == 15)
04b3924d 2298 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 2299 else
04b3924d 2300 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 2301 break;
2302 case 24:
04b3924d 2303 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 2304 break;
2305 case 32:
2306 if (depth == 24)
04b3924d 2307 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 2308 else if (depth == 30)
04b3924d 2309 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 2310 else
04b3924d 2311 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 2312 break;
2313 default:
04b3924d
VS		 2314 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2315 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 2316 break;
2317 }
2318
2319 return fmt;
2320}
2321EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2322
f453ba04
DA		 2323/**
2324 * drm_mode_addfb - add an FB to the graphics configuration
065a50ed
DV		 2325 * @dev: drm device for the ioctl
2326 * @data: data pointer for the ioctl
2327 * @file_priv: drm file for the ioctl call
f453ba04 2328 *
f453ba04
DA		 2329 * Add a new FB to the specified CRTC, given a user request.
2330 *
2331 * Called by the user via ioctl.
2332 *
2333 * RETURNS:
2334 * Zero on success, errno on failure.
2335 */
2336int drm_mode_addfb(struct drm_device *dev,
2337 void *data, struct drm_file *file_priv)
2338{
308e5bcb
JB		 2339 struct drm_mode_fb_cmd *or = data;
2340 struct drm_mode_fb_cmd2 r = {};
2341 struct drm_mode_config *config = &dev->mode_config;
2342 struct drm_framebuffer *fb;
2343 int ret = 0;
2344
2345 /* Use new struct with format internally */
2346 r.fb_id = or->fb_id;
2347 r.width = or->width;
2348 r.height = or->height;
2349 r.pitches[0] = or->pitch;
2350 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2351 r.handles[0] = or->handle;
2352
2353 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2354 return -EINVAL;
2355
acb4b992 2356 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2357 return -EINVAL;
acb4b992
JB		 2358
2359 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2360 return -EINVAL;
308e5bcb 2361
308e5bcb
JB		 2362 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2363 if (IS_ERR(fb)) {
1aa1b11c 2364 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2365 return PTR_ERR(fb);
308e5bcb
JB		 2366 }
2367
4b096ac1 2368 mutex_lock(&file_priv->fbs_lock);
308e5bcb
JB		 2369 or->fb_id = fb->base.id;
2370 list_add(&fb->filp_head, &file_priv->fbs);
2371 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2372 mutex_unlock(&file_priv->fbs_lock);
4b096ac1 2373
308e5bcb
JB		 2374 return ret;
2375}
2376
cff91b62 2377static int format_check(const struct drm_mode_fb_cmd2 *r)
935b5977
VS		 2378{
2379 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2380
2381 switch (format) {
2382 case DRM_FORMAT_C8:
2383 case DRM_FORMAT_RGB332:
2384 case DRM_FORMAT_BGR233:
2385 case DRM_FORMAT_XRGB4444:
2386 case DRM_FORMAT_XBGR4444:
2387 case DRM_FORMAT_RGBX4444:
2388 case DRM_FORMAT_BGRX4444:
2389 case DRM_FORMAT_ARGB4444:
2390 case DRM_FORMAT_ABGR4444:
2391 case DRM_FORMAT_RGBA4444:
2392 case DRM_FORMAT_BGRA4444:
2393 case DRM_FORMAT_XRGB1555:
2394 case DRM_FORMAT_XBGR1555:
2395 case DRM_FORMAT_RGBX5551:
2396 case DRM_FORMAT_BGRX5551:
2397 case DRM_FORMAT_ARGB1555:
2398 case DRM_FORMAT_ABGR1555:
2399 case DRM_FORMAT_RGBA5551:
2400 case DRM_FORMAT_BGRA5551:
2401 case DRM_FORMAT_RGB565:
2402 case DRM_FORMAT_BGR565:
2403 case DRM_FORMAT_RGB888:
2404 case DRM_FORMAT_BGR888:
2405 case DRM_FORMAT_XRGB8888:
2406 case DRM_FORMAT_XBGR8888:
2407 case DRM_FORMAT_RGBX8888:
2408 case DRM_FORMAT_BGRX8888:
2409 case DRM_FORMAT_ARGB8888:
2410 case DRM_FORMAT_ABGR8888:
2411 case DRM_FORMAT_RGBA8888:
2412 case DRM_FORMAT_BGRA8888:
2413 case DRM_FORMAT_XRGB2101010:
2414 case DRM_FORMAT_XBGR2101010:
2415 case DRM_FORMAT_RGBX1010102:
2416 case DRM_FORMAT_BGRX1010102:
2417 case DRM_FORMAT_ARGB2101010:
2418 case DRM_FORMAT_ABGR2101010:
2419 case DRM_FORMAT_RGBA1010102:
2420 case DRM_FORMAT_BGRA1010102:
2421 case DRM_FORMAT_YUYV:
2422 case DRM_FORMAT_YVYU:
2423 case DRM_FORMAT_UYVY:
2424 case DRM_FORMAT_VYUY:
2425 case DRM_FORMAT_AYUV:
2426 case DRM_FORMAT_NV12:
2427 case DRM_FORMAT_NV21:
2428 case DRM_FORMAT_NV16:
2429 case DRM_FORMAT_NV61:
ba623f6a
LP		 2430 case DRM_FORMAT_NV24:
2431 case DRM_FORMAT_NV42:
935b5977
VS		 2432 case DRM_FORMAT_YUV410:
2433 case DRM_FORMAT_YVU410:
2434 case DRM_FORMAT_YUV411:
2435 case DRM_FORMAT_YVU411:
2436 case DRM_FORMAT_YUV420:
2437 case DRM_FORMAT_YVU420:
2438 case DRM_FORMAT_YUV422:
2439 case DRM_FORMAT_YVU422:
2440 case DRM_FORMAT_YUV444:
2441 case DRM_FORMAT_YVU444:
2442 return 0;
2443 default:
2444 return -EINVAL;
2445 }
2446}
2447
cff91b62 2448static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
d1b45d5f
VS		 2449{
2450 int ret, hsub, vsub, num_planes, i;
2451
2452 ret = format_check(r);
2453 if (ret) {
6ba6d03e
VS		 2454 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2455 drm_get_format_name(r->pixel_format));
d1b45d5f
VS		 2456 return ret;
2457 }
2458
2459 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2460 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2461 num_planes = drm_format_num_planes(r->pixel_format);
2462
2463 if (r->width == 0 || r->width % hsub) {
1aa1b11c 2464 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
d1b45d5f
VS		 2465 return -EINVAL;
2466 }
2467
2468 if (r->height == 0 || r->height % vsub) {
1aa1b11c 2469 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
d1b45d5f
VS		 2470 return -EINVAL;
2471 }
2472
2473 for (i = 0; i < num_planes; i++) {
2474 unsigned int width = r->width / (i != 0 ? hsub : 1);
b180b5d1
VS		 2475 unsigned int height = r->height / (i != 0 ? vsub : 1);
2476 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
d1b45d5f
VS		 2477
2478 if (!r->handles[i]) {
1aa1b11c 2479 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
d1b45d5f
VS		 2480 return -EINVAL;
2481 }
2482
b180b5d1
VS		 2483 if ((uint64_t) width * cpp > UINT_MAX)
2484 return -ERANGE;
2485
2486 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2487 return -ERANGE;
2488
2489 if (r->pitches[i] < width * cpp) {
1aa1b11c 2490 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
d1b45d5f
VS		 2491 return -EINVAL;
2492 }
2493 }
2494
2495 return 0;
2496}
2497
308e5bcb
JB		 2498/**
2499 * drm_mode_addfb2 - add an FB to the graphics configuration
065a50ed
DV		 2500 * @dev: drm device for the ioctl
2501 * @data: data pointer for the ioctl
2502 * @file_priv: drm file for the ioctl call
308e5bcb 2503 *
308e5bcb
JB		 2504 * Add a new FB to the specified CRTC, given a user request with format.
2505 *
2506 * Called by the user via ioctl.
2507 *
2508 * RETURNS:
2509 * Zero on success, errno on failure.
2510 */
2511int drm_mode_addfb2(struct drm_device *dev,
2512 void *data, struct drm_file *file_priv)
2513{
2514 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2515 struct drm_mode_config *config = &dev->mode_config;
2516 struct drm_framebuffer *fb;
4a1b0714 2517 int ret;
f453ba04 2518
fb3b06c8
DA		 2519 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2520 return -EINVAL;
2521
e3cc3520
VS		 2522 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2523 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2524 return -EINVAL;
2525 }
2526
f453ba04 2527 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1aa1b11c 2528 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
8cf5c917 2529 r->width, config->min_width, config->max_width);
f453ba04
DA		 2530 return -EINVAL;
2531 }
2532 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1aa1b11c 2533 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
8cf5c917 2534 r->height, config->min_height, config->max_height);
f453ba04
DA		 2535 return -EINVAL;
2536 }
2537
d1b45d5f
VS		 2538 ret = framebuffer_check(r);
2539 if (ret)
935b5977 2540 return ret;
935b5977 2541
f453ba04 2542 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2543 if (IS_ERR(fb)) {
1aa1b11c 2544 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2545 return PTR_ERR(fb);
f453ba04
DA		 2546 }
2547
4b096ac1 2548 mutex_lock(&file_priv->fbs_lock);
e0c8463a 2549 r->fb_id = fb->base.id;
f453ba04 2550 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2551 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2552 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2553
4b096ac1 2554
f453ba04
DA		 2555 return ret;
2556}
2557
2558/**
2559 * drm_mode_rmfb - remove an FB from the configuration
065a50ed
DV		 2560 * @dev: drm device for the ioctl
2561 * @data: data pointer for the ioctl
2562 * @file_priv: drm file for the ioctl call
f453ba04 2563 *
f453ba04
DA		 2564 * Remove the FB specified by the user.
2565 *
2566 * Called by the user via ioctl.
2567 *
2568 * RETURNS:
2569 * Zero on success, errno on failure.
2570 */
2571int drm_mode_rmfb(struct drm_device *dev,
2572 void *data, struct drm_file *file_priv)
2573{
f453ba04
DA		 2574 struct drm_framebuffer *fb = NULL;
2575 struct drm_framebuffer *fbl = NULL;
2576 uint32_t *id = data;
f453ba04
DA		 2577 int found = 0;
2578
fb3b06c8
DA		 2579 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2580 return -EINVAL;
2581
4b096ac1 2582 mutex_lock(&file_priv->fbs_lock);
2b677e8c
DV		 2583 mutex_lock(&dev->mode_config.fb_lock);
2584 fb = __drm_framebuffer_lookup(dev, *id);
2585 if (!fb)
2586 goto fail_lookup;
2587
f453ba04
DA		 2588 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2589 if (fb == fbl)
2590 found = 1;
2b677e8c
DV		 2591 if (!found)
2592 goto fail_lookup;
2593
2594 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2595 __drm_framebuffer_unregister(dev, fb);
f453ba04 2596
4b096ac1 2597 list_del_init(&fb->filp_head);
2b677e8c 2598 mutex_unlock(&dev->mode_config.fb_lock);
4b096ac1 2599 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2600
4b096ac1 2601 drm_framebuffer_remove(fb);
4b096ac1 2602
2b677e8c
DV		 2603 return 0;
2604
2605fail_lookup:
2606 mutex_unlock(&dev->mode_config.fb_lock);
2607 mutex_unlock(&file_priv->fbs_lock);
2608
2609 return -EINVAL;
f453ba04
DA		 2610}
2611
2612/**
2613 * drm_mode_getfb - get FB info
065a50ed
DV		 2614 * @dev: drm device for the ioctl
2615 * @data: data pointer for the ioctl
2616 * @file_priv: drm file for the ioctl call
f453ba04 2617 *
f453ba04
DA		 2618 * Lookup the FB given its ID and return info about it.
2619 *
2620 * Called by the user via ioctl.
2621 *
2622 * RETURNS:
2623 * Zero on success, errno on failure.
2624 */
2625int drm_mode_getfb(struct drm_device *dev,
2626 void *data, struct drm_file *file_priv)
2627{
2628 struct drm_mode_fb_cmd *r = data;
f453ba04 2629 struct drm_framebuffer *fb;
58c0dca1 2630 int ret;
f453ba04 2631
fb3b06c8
DA		 2632 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2633 return -EINVAL;
2634
786b99ed 2635 fb = drm_framebuffer_lookup(dev, r->fb_id);
58c0dca1
DV		 2636 if (!fb)
2637 return -EINVAL;
f453ba04
DA		 2638
2639 r->height = fb->height;
2640 r->width = fb->width;
2641 r->depth = fb->depth;
2642 r->bpp = fb->bits_per_pixel;
01f2c773 2643 r->pitch = fb->pitches[0];
af26ef3b
DV		 2644 if (fb->funcs->create_handle)
2645 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2646 else
2647 ret = -ENODEV;
f453ba04 2648
58c0dca1
DV		 2649 drm_framebuffer_unreference(fb);
2650
f453ba04
DA		 2651 return ret;
2652}
2653
884840aa
JB		 2654int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2655 void *data, struct drm_file *file_priv)
2656{
2657 struct drm_clip_rect __user *clips_ptr;
2658 struct drm_clip_rect *clips = NULL;
2659 struct drm_mode_fb_dirty_cmd *r = data;
884840aa
JB		 2660 struct drm_framebuffer *fb;
2661 unsigned flags;
2662 int num_clips;
4a1b0714 2663 int ret;
884840aa 2664
fb3b06c8
DA		 2665 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2666 return -EINVAL;
2667
786b99ed 2668 fb = drm_framebuffer_lookup(dev, r->fb_id);
4ccf097f
DV		 2669 if (!fb)
2670 return -EINVAL;
884840aa
JB		 2671
2672 num_clips = r->num_clips;
81f6c7f8 2673 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2674
2675 if (!num_clips != !clips_ptr) {
2676 ret = -EINVAL;
2677 goto out_err1;
2678 }
2679
2680 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2681
2682 /* If userspace annotates copy, clips must come in pairs */
2683 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2684 ret = -EINVAL;
2685 goto out_err1;
2686 }
2687
2688 if (num_clips && clips_ptr) {
a5cd3351
XW		 2689 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2690 ret = -EINVAL;
2691 goto out_err1;
2692 }
884840aa
JB		 2693 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2694 if (!clips) {
2695 ret = -ENOMEM;
2696 goto out_err1;
2697 }
2698
2699 ret = copy_from_user(clips, clips_ptr,
2700 num_clips * sizeof(*clips));
e902a358
DC		 2701 if (ret) {
2702 ret = -EFAULT;
884840aa 2703 goto out_err2;
e902a358 2704 }
884840aa
JB		 2705 }
2706
2707 if (fb->funcs->dirty) {
4ccf097f 2708 drm_modeset_lock_all(dev);
02b00162
TH		 2709 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2710 clips, num_clips);
4ccf097f 2711 drm_modeset_unlock_all(dev);
884840aa
JB		 2712 } else {
2713 ret = -ENOSYS;
884840aa
JB		 2714 }
2715
2716out_err2:
2717 kfree(clips);
2718out_err1:
4ccf097f
DV		 2719 drm_framebuffer_unreference(fb);
2720
884840aa
JB		 2721 return ret;
2722}
2723
2724
f453ba04
DA		 2725/**
2726 * drm_fb_release - remove and free the FBs on this file
065a50ed 2727 * @priv: drm file for the ioctl
f453ba04 2728 *
f453ba04
DA		 2729 * Destroy all the FBs associated with @filp.
2730 *
2731 * Called by the user via ioctl.
2732 *
2733 * RETURNS:
2734 * Zero on success, errno on failure.
2735 */
ea39f835 2736void drm_fb_release(struct drm_file *priv)
f453ba04 2737{
f453ba04
DA		 2738 struct drm_device *dev = priv->minor->dev;
2739 struct drm_framebuffer *fb, *tfb;
2740
4b096ac1 2741 mutex_lock(&priv->fbs_lock);
f453ba04 2742 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2b677e8c
DV		 2743
2744 mutex_lock(&dev->mode_config.fb_lock);
2745 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2746 __drm_framebuffer_unregister(dev, fb);
2747 mutex_unlock(&dev->mode_config.fb_lock);
2748
4b096ac1 2749 list_del_init(&fb->filp_head);
2b677e8c
DV		 2750
2751 /* This will also drop the fpriv->fbs reference. */
f7eff60e 2752 drm_framebuffer_remove(fb);
f453ba04 2753 }
4b096ac1 2754 mutex_unlock(&priv->fbs_lock);
f453ba04
DA		 2755}
2756
f453ba04
DA		 2757struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2758 const char *name, int num_values)
2759{
2760 struct drm_property *property = NULL;
6bfc56aa 2761 int ret;
f453ba04
DA		 2762
2763 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2764 if (!property)
2765 return NULL;
2766
2767 if (num_values) {
2768 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2769 if (!property->values)
2770 goto fail;
2771 }
2772
6bfc56aa
VS		 2773 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2774 if (ret)
2775 goto fail;
2776
f453ba04
DA		 2777 property->flags = flags;
2778 property->num_values = num_values;
2779 INIT_LIST_HEAD(&property->enum_blob_list);
2780
471dd2ef 2781 if (name) {
f453ba04 2782 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2783 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2784 }
f453ba04
DA		 2785
2786 list_add_tail(&property->head, &dev->mode_config.property_list);
2787 return property;
2788fail:
6bfc56aa 2789 kfree(property->values);
f453ba04
DA		 2790 kfree(property);
2791 return NULL;
2792}
2793EXPORT_SYMBOL(drm_property_create);
2794
4a67d391
SH		 2795struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2796 const char *name,
2797 const struct drm_prop_enum_list *props,
2798 int num_values)
2799{
2800 struct drm_property *property;
2801 int i, ret;
2802
2803 flags |= DRM_MODE_PROP_ENUM;
2804
2805 property = drm_property_create(dev, flags, name, num_values);
2806 if (!property)
2807 return NULL;
2808
2809 for (i = 0; i < num_values; i++) {
2810 ret = drm_property_add_enum(property, i,
2811 props[i].type,
2812 props[i].name);
2813 if (ret) {
2814 drm_property_destroy(dev, property);
2815 return NULL;
2816 }
2817 }
2818
2819 return property;
2820}
2821EXPORT_SYMBOL(drm_property_create_enum);
2822
49e27545
RC		 2823struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2824 int flags, const char *name,
2825 const struct drm_prop_enum_list *props,
2826 int num_values)
2827{
2828 struct drm_property *property;
2829 int i, ret;
2830
2831 flags |= DRM_MODE_PROP_BITMASK;
2832
2833 property = drm_property_create(dev, flags, name, num_values);
2834 if (!property)
2835 return NULL;
2836
2837 for (i = 0; i < num_values; i++) {
2838 ret = drm_property_add_enum(property, i,
2839 props[i].type,
2840 props[i].name);
2841 if (ret) {
2842 drm_property_destroy(dev, property);
2843 return NULL;
2844 }
2845 }
2846
2847 return property;
2848}
2849EXPORT_SYMBOL(drm_property_create_bitmask);
2850
d9bc3c02
SH		 2851struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2852 const char *name,
2853 uint64_t min, uint64_t max)
2854{
2855 struct drm_property *property;
2856
2857 flags |= DRM_MODE_PROP_RANGE;
2858
2859 property = drm_property_create(dev, flags, name, 2);
2860 if (!property)
2861 return NULL;
2862
2863 property->values[0] = min;
2864 property->values[1] = max;
2865
2866 return property;
2867}
2868EXPORT_SYMBOL(drm_property_create_range);
2869
f453ba04
DA		 2870int drm_property_add_enum(struct drm_property *property, int index,
2871 uint64_t value, const char *name)
2872{
2873 struct drm_property_enum *prop_enum;
2874
49e27545
RC		 2875 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2876 return -EINVAL;
2877
2878 /*
2879 * Bitmask enum properties have the additional constraint of values
2880 * from 0 to 63
2881 */
2882 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
f453ba04
DA		 2883 return -EINVAL;
2884
2885 if (!list_empty(&property->enum_blob_list)) {
2886 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2887 if (prop_enum->value == value) {
2888 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2889 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2890 return 0;
2891 }
2892 }
2893 }
2894
2895 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2896 if (!prop_enum)
2897 return -ENOMEM;
2898
2899 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2900 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2901 prop_enum->value = value;
2902
2903 property->values[index] = value;
2904 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2905 return 0;
2906}
2907EXPORT_SYMBOL(drm_property_add_enum);
2908
2909void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2910{
2911 struct drm_property_enum *prop_enum, *pt;
2912
2913 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2914 list_del(&prop_enum->head);
2915 kfree(prop_enum);
2916 }
2917
2918 if (property->num_values)
2919 kfree(property->values);
2920 drm_mode_object_put(dev, &property->base);
2921 list_del(&property->head);
2922 kfree(property);
2923}
2924EXPORT_SYMBOL(drm_property_destroy);
2925
c543188a
PZ		 2926void drm_object_attach_property(struct drm_mode_object *obj,
2927 struct drm_property *property,
2928 uint64_t init_val)
2929{
7f88a9be 2930 int count = obj->properties->count;
c543188a 2931
7f88a9be
PZ		 2932 if (count == DRM_OBJECT_MAX_PROPERTY) {
2933 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2934 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2935 "you see this message on the same object type.\n",
2936 obj->type);
2937 return;
c543188a
PZ		 2938 }
2939
7f88a9be
PZ		 2940 obj->properties->ids[count] = property->base.id;
2941 obj->properties->values[count] = init_val;
2942 obj->properties->count++;
c543188a
PZ		 2943}
2944EXPORT_SYMBOL(drm_object_attach_property);
2945
2946int drm_object_property_set_value(struct drm_mode_object *obj,
2947 struct drm_property *property, uint64_t val)
2948{
2949 int i;
2950
7f88a9be 2951 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 2952 if (obj->properties->ids[i] == property->base.id) {
2953 obj->properties->values[i] = val;
2954 return 0;
2955 }
2956 }
2957
2958 return -EINVAL;
2959}
2960EXPORT_SYMBOL(drm_object_property_set_value);
2961
2962int drm_object_property_get_value(struct drm_mode_object *obj,
2963 struct drm_property *property, uint64_t *val)
2964{
2965 int i;
2966
7f88a9be 2967 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 2968 if (obj->properties->ids[i] == property->base.id) {
2969 *val = obj->properties->values[i];
2970 return 0;
2971 }
2972 }
2973
2974 return -EINVAL;
2975}
2976EXPORT_SYMBOL(drm_object_property_get_value);
2977
f453ba04
DA		 2978int drm_mode_getproperty_ioctl(struct drm_device *dev,
2979 void *data, struct drm_file *file_priv)
2980{
2981 struct drm_mode_object *obj;
2982 struct drm_mode_get_property *out_resp = data;
2983 struct drm_property *property;
2984 int enum_count = 0;
2985 int blob_count = 0;
2986 int value_count = 0;
2987 int ret = 0, i;
2988 int copied;
2989 struct drm_property_enum *prop_enum;
2990 struct drm_mode_property_enum __user *enum_ptr;
2991 struct drm_property_blob *prop_blob;
81f6c7f8 2992 uint32_t __user *blob_id_ptr;
f453ba04
DA		 2993 uint64_t __user *values_ptr;
2994 uint32_t __user *blob_length_ptr;
2995
fb3b06c8
DA		 2996 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2997 return -EINVAL;
2998
84849903 2999 drm_modeset_lock_all(dev);
f453ba04
DA		 3000 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3001 if (!obj) {
3002 ret = -EINVAL;
3003 goto done;
3004 }
3005 property = obj_to_property(obj);
3006
49e27545 3007 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3008 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3009 enum_count++;
3010 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3011 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3012 blob_count++;
3013 }
3014
3015 value_count = property->num_values;
3016
3017 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3018 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3019 out_resp->flags = property->flags;
3020
3021 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 3022 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3023 for (i = 0; i < value_count; i++) {
3024 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3025 ret = -EFAULT;
3026 goto done;
3027 }
3028 }
3029 }
3030 out_resp->count_values = value_count;
3031
49e27545 3032 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3033 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3034 copied = 0;
81f6c7f8 3035 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 3036 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3037
3038 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3039 ret = -EFAULT;
3040 goto done;
3041 }
3042
3043 if (copy_to_user(&enum_ptr[copied].name,
3044 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3045 ret = -EFAULT;
3046 goto done;
3047 }
3048 copied++;
3049 }
3050 }
3051 out_resp->count_enum_blobs = enum_count;
3052 }
3053
3054 if (property->flags & DRM_MODE_PROP_BLOB) {
3055 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3056 copied = 0;
81f6c7f8
VS		 3057 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3058 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3059
3060 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3061 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3062 ret = -EFAULT;
3063 goto done;
3064 }
3065
3066 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3067 ret = -EFAULT;
3068 goto done;
3069 }
3070
3071 copied++;
3072 }
3073 }
3074 out_resp->count_enum_blobs = blob_count;
3075 }
3076done:
84849903 3077 drm_modeset_unlock_all(dev);
f453ba04
DA		 3078 return ret;
3079}
3080
3081static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3082 void *data)
3083{
3084 struct drm_property_blob *blob;
6bfc56aa 3085 int ret;
f453ba04
DA		 3086
3087 if (!length || !data)
3088 return NULL;
3089
3090 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3091 if (!blob)
3092 return NULL;
3093
6bfc56aa
VS		 3094 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3095 if (ret) {
3096 kfree(blob);
3097 return NULL;
3098 }
3099
f453ba04
DA		 3100 blob->length = length;
3101
3102 memcpy(blob->data, data, length);
3103
f453ba04
DA		 3104 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3105 return blob;
3106}
3107
3108static void drm_property_destroy_blob(struct drm_device *dev,
3109 struct drm_property_blob *blob)
3110{
3111 drm_mode_object_put(dev, &blob->base);
3112 list_del(&blob->head);
3113 kfree(blob);
3114}
3115
3116int drm_mode_getblob_ioctl(struct drm_device *dev,
3117 void *data, struct drm_file *file_priv)
3118{
3119 struct drm_mode_object *obj;
3120 struct drm_mode_get_blob *out_resp = data;
3121 struct drm_property_blob *blob;
3122 int ret = 0;
81f6c7f8 3123 void __user *blob_ptr;
f453ba04 3124
fb3b06c8
DA		 3125 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3126 return -EINVAL;
3127
84849903 3128 drm_modeset_lock_all(dev);
f453ba04
DA		 3129 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3130 if (!obj) {
3131 ret = -EINVAL;
3132 goto done;
3133 }
3134 blob = obj_to_blob(obj);
3135
3136 if (out_resp->length == blob->length) {
81f6c7f8 3137 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 3138 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3139 ret = -EFAULT;
3140 goto done;
3141 }
3142 }
3143 out_resp->length = blob->length;
3144
3145done:
84849903 3146 drm_modeset_unlock_all(dev);
f453ba04
DA		 3147 return ret;
3148}
3149
3150int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3151 struct edid *edid)
3152{
3153 struct drm_device *dev = connector->dev;
4a1b0714 3154 int ret, size;
f453ba04
DA		 3155
3156 if (connector->edid_blob_ptr)
3157 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3158
3159 /* Delete edid, when there is none. */
3160 if (!edid) {
3161 connector->edid_blob_ptr = NULL;
58495563 3162 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
f453ba04
DA		 3163 return ret;
3164 }
3165
7466f4cc
AJ		 3166 size = EDID_LENGTH * (1 + edid->extensions);
3167 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3168 size, edid);
e655d122
SK		 3169 if (!connector->edid_blob_ptr)
3170 return -EINVAL;
f453ba04 3171
58495563 3172 ret = drm_object_property_set_value(&connector->base,
f453ba04
DA		 3173 dev->mode_config.edid_property,
3174 connector->edid_blob_ptr->base.id);
3175
3176 return ret;
3177}
3178EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3179
26a34815 3180static bool drm_property_change_is_valid(struct drm_property *property,
592c20ee 3181 uint64_t value)
26a34815
PZ		 3182{
3183 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3184 return false;
3185 if (property->flags & DRM_MODE_PROP_RANGE) {
3186 if (value < property->values[0] || value > property->values[1])
3187 return false;
3188 return true;
49e27545
RC		 3189 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3190 int i;
592c20ee 3191 uint64_t valid_mask = 0;
49e27545
RC		 3192 for (i = 0; i < property->num_values; i++)
3193 valid_mask |= (1ULL << property->values[i]);
3194 return !(value & ~valid_mask);
c4a56750
VS		 3195 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3196 /* Only the driver knows */
3197 return true;
26a34815
PZ		 3198 } else {
3199 int i;
3200 for (i = 0; i < property->num_values; i++)
3201 if (property->values[i] == value)
3202 return true;
3203 return false;
3204 }
3205}
3206
f453ba04
DA		 3207int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3208 void *data, struct drm_file *file_priv)
3209{
0057d8dd
PZ		 3210 struct drm_mode_connector_set_property *conn_set_prop = data;
3211 struct drm_mode_obj_set_property obj_set_prop = {
3212 .value = conn_set_prop->value,
3213 .prop_id = conn_set_prop->prop_id,
3214 .obj_id = conn_set_prop->connector_id,
3215 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3216 };
fb3b06c8 3217
0057d8dd
PZ		 3218 /* It does all the locking and checking we need */
3219 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
f453ba04
DA		 3220}
3221
c543188a
PZ		 3222static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3223 struct drm_property *property,
3224 uint64_t value)
3225{
3226 int ret = -EINVAL;
3227 struct drm_connector *connector = obj_to_connector(obj);
3228
3229 /* Do DPMS ourselves */
3230 if (property == connector->dev->mode_config.dpms_property) {
3231 if (connector->funcs->dpms)
3232 (*connector->funcs->dpms)(connector, (int)value);
3233 ret = 0;
3234 } else if (connector->funcs->set_property)
3235 ret = connector->funcs->set_property(connector, property, value);
3236
3237 /* store the property value if successful */
3238 if (!ret)
58495563 3239 drm_object_property_set_value(&connector->base, property, value);
c543188a
PZ		 3240 return ret;
3241}
3242
bffd9de0
PZ		 3243static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3244 struct drm_property *property,
3245 uint64_t value)
3246{
3247 int ret = -EINVAL;
3248 struct drm_crtc *crtc = obj_to_crtc(obj);
3249
3250 if (crtc->funcs->set_property)
3251 ret = crtc->funcs->set_property(crtc, property, value);
3252 if (!ret)
3253 drm_object_property_set_value(obj, property, value);
3254
3255 return ret;
3256}
3257
4d93914a
RC		 3258static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3259 struct drm_property *property,
3260 uint64_t value)
3261{
3262 int ret = -EINVAL;
3263 struct drm_plane *plane = obj_to_plane(obj);
3264
3265 if (plane->funcs->set_property)
3266 ret = plane->funcs->set_property(plane, property, value);
3267 if (!ret)
3268 drm_object_property_set_value(obj, property, value);
3269
3270 return ret;
3271}
3272
c543188a
PZ		 3273int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3274 struct drm_file *file_priv)
3275{
3276 struct drm_mode_obj_get_properties *arg = data;
3277 struct drm_mode_object *obj;
3278 int ret = 0;
3279 int i;
3280 int copied = 0;
3281 int props_count = 0;
3282 uint32_t __user *props_ptr;
3283 uint64_t __user *prop_values_ptr;
3284
3285 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3286 return -EINVAL;
3287
84849903 3288 drm_modeset_lock_all(dev);
c543188a
PZ		 3289
3290 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3291 if (!obj) {
3292 ret = -EINVAL;
3293 goto out;
3294 }
3295 if (!obj->properties) {
3296 ret = -EINVAL;
3297 goto out;
3298 }
3299
7f88a9be 3300 props_count = obj->properties->count;
c543188a
PZ		 3301
3302 /* This ioctl is called twice, once to determine how much space is
3303 * needed, and the 2nd time to fill it. */
3304 if ((arg->count_props >= props_count) && props_count) {
3305 copied = 0;
3306 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3307 prop_values_ptr = (uint64_t __user *)(unsigned long)
3308 (arg->prop_values_ptr);
3309 for (i = 0; i < props_count; i++) {
3310 if (put_user(obj->properties->ids[i],
3311 props_ptr + copied)) {
3312 ret = -EFAULT;
3313 goto out;
3314 }
3315 if (put_user(obj->properties->values[i],
3316 prop_values_ptr + copied)) {
3317 ret = -EFAULT;
3318 goto out;
3319 }
3320 copied++;
3321 }
3322 }
3323 arg->count_props = props_count;
3324out:
84849903 3325 drm_modeset_unlock_all(dev);
c543188a
PZ		 3326 return ret;
3327}
3328
3329int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3330 struct drm_file *file_priv)
3331{
3332 struct drm_mode_obj_set_property *arg = data;
3333 struct drm_mode_object *arg_obj;
3334 struct drm_mode_object *prop_obj;
3335 struct drm_property *property;
3336 int ret = -EINVAL;
3337 int i;
3338
3339 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3340 return -EINVAL;
3341
84849903 3342 drm_modeset_lock_all(dev);
c543188a
PZ		 3343
3344 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3345 if (!arg_obj)
3346 goto out;
3347 if (!arg_obj->properties)
3348 goto out;
3349
7f88a9be 3350 for (i = 0; i < arg_obj->properties->count; i++)
c543188a
PZ		 3351 if (arg_obj->properties->ids[i] == arg->prop_id)
3352 break;
3353
7f88a9be 3354 if (i == arg_obj->properties->count)
c543188a
PZ		 3355 goto out;
3356
3357 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3358 DRM_MODE_OBJECT_PROPERTY);
3359 if (!prop_obj)
3360 goto out;
3361 property = obj_to_property(prop_obj);
3362
3363 if (!drm_property_change_is_valid(property, arg->value))
3364 goto out;
3365
3366 switch (arg_obj->type) {
3367 case DRM_MODE_OBJECT_CONNECTOR:
3368 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3369 arg->value);
3370 break;
bffd9de0
PZ		 3371 case DRM_MODE_OBJECT_CRTC:
3372 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3373 break;
4d93914a
RC		 3374 case DRM_MODE_OBJECT_PLANE:
3375 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3376 break;
c543188a
PZ		 3377 }
3378
3379out:
84849903 3380 drm_modeset_unlock_all(dev);
c543188a
PZ		 3381 return ret;
3382}
3383
f453ba04
DA		 3384int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3385 struct drm_encoder *encoder)
3386{
3387 int i;
3388
3389 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3390 if (connector->encoder_ids[i] == 0) {
3391 connector->encoder_ids[i] = encoder->base.id;
3392 return 0;
3393 }
3394 }
3395 return -ENOMEM;
3396}
3397EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3398
3399void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3400 struct drm_encoder *encoder)
3401{
3402 int i;
3403 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3404 if (connector->encoder_ids[i] == encoder->base.id) {
3405 connector->encoder_ids[i] = 0;
3406 if (connector->encoder == encoder)
3407 connector->encoder = NULL;
3408 break;
3409 }
3410 }
3411}
3412EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3413
4cae5b84 3414int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3415 int gamma_size)
3416{
3417 crtc->gamma_size = gamma_size;
3418
3419 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3420 if (!crtc->gamma_store) {
3421 crtc->gamma_size = 0;
4cae5b84 3422 return -ENOMEM;
f453ba04
DA		 3423 }
3424
4cae5b84 3425 return 0;
f453ba04
DA		 3426}
3427EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3428
3429int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3430 void *data, struct drm_file *file_priv)
3431{
3432 struct drm_mode_crtc_lut *crtc_lut = data;
3433 struct drm_mode_object *obj;
3434 struct drm_crtc *crtc;
3435 void *r_base, *g_base, *b_base;
3436 int size;
3437 int ret = 0;
3438
fb3b06c8
DA		 3439 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3440 return -EINVAL;
3441
84849903 3442 drm_modeset_lock_all(dev);
f453ba04
DA		 3443 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3444 if (!obj) {
3445 ret = -EINVAL;
3446 goto out;
3447 }
3448 crtc = obj_to_crtc(obj);
3449
ebe0f244
LP		 3450 if (crtc->funcs->gamma_set == NULL) {
3451 ret = -ENOSYS;
3452 goto out;
3453 }
3454
f453ba04
DA		 3455 /* memcpy into gamma store */
3456 if (crtc_lut->gamma_size != crtc->gamma_size) {
3457 ret = -EINVAL;
3458 goto out;
3459 }
3460
3461 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3462 r_base = crtc->gamma_store;
3463 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3464 ret = -EFAULT;
3465 goto out;
3466 }
3467
3468 g_base = r_base + size;
3469 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3470 ret = -EFAULT;
3471 goto out;
3472 }
3473
3474 b_base = g_base + size;
3475 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3476 ret = -EFAULT;
3477 goto out;
3478 }
3479
7203425a 3480 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3481
3482out:
84849903 3483 drm_modeset_unlock_all(dev);
f453ba04
DA		 3484 return ret;
3485
3486}
3487
3488int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3489 void *data, struct drm_file *file_priv)
3490{
3491 struct drm_mode_crtc_lut *crtc_lut = data;
3492 struct drm_mode_object *obj;
3493 struct drm_crtc *crtc;
3494 void *r_base, *g_base, *b_base;
3495 int size;
3496 int ret = 0;
3497
fb3b06c8
DA		 3498 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3499 return -EINVAL;
3500
84849903 3501 drm_modeset_lock_all(dev);
f453ba04
DA		 3502 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3503 if (!obj) {
3504 ret = -EINVAL;
3505 goto out;
3506 }
3507 crtc = obj_to_crtc(obj);
3508
3509 /* memcpy into gamma store */
3510 if (crtc_lut->gamma_size != crtc->gamma_size) {
3511 ret = -EINVAL;
3512 goto out;
3513 }
3514
3515 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3516 r_base = crtc->gamma_store;
3517 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3518 ret = -EFAULT;
3519 goto out;
3520 }
3521
3522 g_base = r_base + size;
3523 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3524 ret = -EFAULT;
3525 goto out;
3526 }
3527
3528 b_base = g_base + size;
3529 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3530 ret = -EFAULT;
3531 goto out;
3532 }
3533out:
84849903 3534 drm_modeset_unlock_all(dev);
f453ba04
DA		 3535 return ret;
3536}
d91d8a3f
KH		 3537
3538int drm_mode_page_flip_ioctl(struct drm_device *dev,
3539 void *data, struct drm_file *file_priv)
3540{
3541 struct drm_mode_crtc_page_flip *page_flip = data;
3542 struct drm_mode_object *obj;
3543 struct drm_crtc *crtc;
b0d12325 3544 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
d91d8a3f
KH		 3545 struct drm_pending_vblank_event *e = NULL;
3546 unsigned long flags;
7c80e128 3547 int hdisplay, vdisplay;
d91d8a3f
KH		 3548 int ret = -EINVAL;
3549
3550 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3551 page_flip->reserved != 0)
3552 return -EINVAL;
3553
62f2104f
KP		 3554 if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
3555 return -EINVAL;
3556
d91d8a3f
KH		 3557 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3558 if (!obj)
b4d5e7d1 3559 return -EINVAL;
d91d8a3f
KH		 3560 crtc = obj_to_crtc(obj);
3561
b4d5e7d1 3562 mutex_lock(&crtc->mutex);
90c1efdd
CW		 3563 if (crtc->fb == NULL) {
3564 /* The framebuffer is currently unbound, presumably
3565 * due to a hotplug event, that userspace has not
3566 * yet discovered.
3567 */
3568 ret = -EBUSY;
3569 goto out;
3570 }
3571
d91d8a3f
KH		 3572 if (crtc->funcs->page_flip == NULL)
3573 goto out;
3574
786b99ed
DV		 3575 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3576 if (!fb)
d91d8a3f 3577 goto out;
d91d8a3f 3578
7c80e128
RC		 3579 hdisplay = crtc->mode.hdisplay;
3580 vdisplay = crtc->mode.vdisplay;
3581
3582 if (crtc->invert_dimensions)
3583 swap(hdisplay, vdisplay);
3584
3585 if (hdisplay > fb->width ||
3586 vdisplay > fb->height ||
3587 crtc->x > fb->width - hdisplay ||
3588 crtc->y > fb->height - vdisplay) {
3589 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3590 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3591 crtc->invert_dimensions ? " (inverted)" : "");
5f61bb42
VS		 3592 ret = -ENOSPC;
3593 goto out;
3594 }
3595
909d9cda
LP		 3596 if (crtc->fb->pixel_format != fb->pixel_format) {
3597 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3598 ret = -EINVAL;
3599 goto out;
3600 }
3601
d91d8a3f
KH		 3602 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3603 ret = -ENOMEM;
3604 spin_lock_irqsave(&dev->event_lock, flags);
3605 if (file_priv->event_space < sizeof e->event) {
3606 spin_unlock_irqrestore(&dev->event_lock, flags);
3607 goto out;
3608 }
3609 file_priv->event_space -= sizeof e->event;
3610 spin_unlock_irqrestore(&dev->event_lock, flags);
3611
3612 e = kzalloc(sizeof *e, GFP_KERNEL);
3613 if (e == NULL) {
3614 spin_lock_irqsave(&dev->event_lock, flags);
3615 file_priv->event_space += sizeof e->event;
3616 spin_unlock_irqrestore(&dev->event_lock, flags);
3617 goto out;
3618 }
3619
7bd4d7be 3620 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3621 e->event.base.length = sizeof e->event;
3622 e->event.user_data = page_flip->user_data;
3623 e->base.event = &e->event.base;
3624 e->base.file_priv = file_priv;
3625 e->base.destroy =
3626 (void (*) (struct drm_pending_event *)) kfree;
3627 }
3628
b0d12325 3629 old_fb = crtc->fb;
ed8d1975 3630 ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
d91d8a3f 3631 if (ret) {
aef6a7ee
JS		 3632 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3633 spin_lock_irqsave(&dev->event_lock, flags);
3634 file_priv->event_space += sizeof e->event;
3635 spin_unlock_irqrestore(&dev->event_lock, flags);
3636 kfree(e);
3637 }
b0d12325
DV		 3638 /* Keep the old fb, don't unref it. */
3639 old_fb = NULL;
3640 } else {
8cf1e981
TR		 3641 /*
3642 * Warn if the driver hasn't properly updated the crtc->fb
3643 * field to reflect that the new framebuffer is now used.
3644 * Failing to do so will screw with the reference counting
3645 * on framebuffers.
3646 */
3647 WARN_ON(crtc->fb != fb);
b0d12325
DV		 3648 /* Unref only the old framebuffer. */
3649 fb = NULL;
d91d8a3f
KH		 3650 }
3651
3652out:
b0d12325
DV		 3653 if (fb)
3654 drm_framebuffer_unreference(fb);
3655 if (old_fb)
3656 drm_framebuffer_unreference(old_fb);
b4d5e7d1
DV		 3657 mutex_unlock(&crtc->mutex);
3658
d91d8a3f
KH		 3659 return ret;
3660}
eb033556
CW		 3661
3662void drm_mode_config_reset(struct drm_device *dev)
3663{
3664 struct drm_crtc *crtc;
3665 struct drm_encoder *encoder;
3666 struct drm_connector *connector;
3667
3668 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3669 if (crtc->funcs->reset)
3670 crtc->funcs->reset(crtc);
3671
3672 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3673 if (encoder->funcs->reset)
3674 encoder->funcs->reset(encoder);
3675
5e2cb2f6
DV		 3676 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3677 connector->status = connector_status_unknown;
3678
eb033556
CW		 3679 if (connector->funcs->reset)
3680 connector->funcs->reset(connector);
5e2cb2f6 3681 }
eb033556
CW		 3682}
3683EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3684
3685int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3686 void *data, struct drm_file *file_priv)
3687{
3688 struct drm_mode_create_dumb *args = data;
3689
3690 if (!dev->driver->dumb_create)
3691 return -ENOSYS;
3692 return dev->driver->dumb_create(file_priv, dev, args);
3693}
3694
3695int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3696 void *data, struct drm_file *file_priv)
3697{
3698 struct drm_mode_map_dumb *args = data;
3699
3700 /* call driver ioctl to get mmap offset */
3701 if (!dev->driver->dumb_map_offset)
3702 return -ENOSYS;
3703
3704 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3705}
3706
3707int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3708 void *data, struct drm_file *file_priv)
3709{
3710 struct drm_mode_destroy_dumb *args = data;
3711
3712 if (!dev->driver->dumb_destroy)
3713 return -ENOSYS;
3714
3715 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3716}
248dbc23
DA		 3717
3718/*
3719 * Just need to support RGB formats here for compat with code that doesn't
3720 * use pixel formats directly yet.
3721 */
3722void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3723 int *bpp)
3724{
3725 switch (format) {
c51a6bc5 3726 case DRM_FORMAT_C8:
04b3924d
VS		 3727 case DRM_FORMAT_RGB332:
3728 case DRM_FORMAT_BGR233:
248dbc23
DA		 3729 *depth = 8;
3730 *bpp = 8;
3731 break;
04b3924d
VS		 3732 case DRM_FORMAT_XRGB1555:
3733 case DRM_FORMAT_XBGR1555:
3734 case DRM_FORMAT_RGBX5551:
3735 case DRM_FORMAT_BGRX5551:
3736 case DRM_FORMAT_ARGB1555:
3737 case DRM_FORMAT_ABGR1555:
3738 case DRM_FORMAT_RGBA5551:
3739 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3740 *depth = 15;
3741 *bpp = 16;
3742 break;
04b3924d
VS		 3743 case DRM_FORMAT_RGB565:
3744 case DRM_FORMAT_BGR565:
248dbc23
DA		 3745 *depth = 16;
3746 *bpp = 16;
3747 break;
04b3924d
VS		 3748 case DRM_FORMAT_RGB888:
3749 case DRM_FORMAT_BGR888:
3750 *depth = 24;
3751 *bpp = 24;
3752 break;
3753 case DRM_FORMAT_XRGB8888:
3754 case DRM_FORMAT_XBGR8888:
3755 case DRM_FORMAT_RGBX8888:
3756 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3757 *depth = 24;
3758 *bpp = 32;
3759 break;
04b3924d
VS		 3760 case DRM_FORMAT_XRGB2101010:
3761 case DRM_FORMAT_XBGR2101010:
3762 case DRM_FORMAT_RGBX1010102:
3763 case DRM_FORMAT_BGRX1010102:
3764 case DRM_FORMAT_ARGB2101010:
3765 case DRM_FORMAT_ABGR2101010:
3766 case DRM_FORMAT_RGBA1010102:
3767 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3768 *depth = 30;
3769 *bpp = 32;
3770 break;
04b3924d
VS		 3771 case DRM_FORMAT_ARGB8888:
3772 case DRM_FORMAT_ABGR8888:
3773 case DRM_FORMAT_RGBA8888:
3774 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3775 *depth = 32;
3776 *bpp = 32;
3777 break;
3778 default:
3779 DRM_DEBUG_KMS("unsupported pixel format\n");
3780 *depth = 0;
3781 *bpp = 0;
3782 break;
3783 }
3784}
3785EXPORT_SYMBOL(drm_fb_get_bpp_depth);
141670e9
VS		 3786
3787/**
3788 * drm_format_num_planes - get the number of planes for format
3789 * @format: pixel format (DRM_FORMAT_*)
3790 *
3791 * RETURNS:
3792 * The number of planes used by the specified pixel format.
3793 */
3794int drm_format_num_planes(uint32_t format)
3795{
3796 switch (format) {
3797 case DRM_FORMAT_YUV410:
3798 case DRM_FORMAT_YVU410:
3799 case DRM_FORMAT_YUV411:
3800 case DRM_FORMAT_YVU411:
3801 case DRM_FORMAT_YUV420:
3802 case DRM_FORMAT_YVU420:
3803 case DRM_FORMAT_YUV422:
3804 case DRM_FORMAT_YVU422:
3805 case DRM_FORMAT_YUV444:
3806 case DRM_FORMAT_YVU444:
3807 return 3;
3808 case DRM_FORMAT_NV12:
3809 case DRM_FORMAT_NV21:
3810 case DRM_FORMAT_NV16:
3811 case DRM_FORMAT_NV61:
ba623f6a
LP		 3812 case DRM_FORMAT_NV24:
3813 case DRM_FORMAT_NV42:
141670e9
VS		 3814 return 2;
3815 default:
3816 return 1;
3817 }
3818}
3819EXPORT_SYMBOL(drm_format_num_planes);
5a86bd55
VS		 3820
3821/**
3822 * drm_format_plane_cpp - determine the bytes per pixel value
3823 * @format: pixel format (DRM_FORMAT_*)
3824 * @plane: plane index
3825 *
3826 * RETURNS:
3827 * The bytes per pixel value for the specified plane.
3828 */
3829int drm_format_plane_cpp(uint32_t format, int plane)
3830{
3831 unsigned int depth;
3832 int bpp;
3833
3834 if (plane >= drm_format_num_planes(format))
3835 return 0;
3836
3837 switch (format) {
3838 case DRM_FORMAT_YUYV:
3839 case DRM_FORMAT_YVYU:
3840 case DRM_FORMAT_UYVY:
3841 case DRM_FORMAT_VYUY:
3842 return 2;
3843 case DRM_FORMAT_NV12:
3844 case DRM_FORMAT_NV21:
3845 case DRM_FORMAT_NV16:
3846 case DRM_FORMAT_NV61:
ba623f6a
LP		 3847 case DRM_FORMAT_NV24:
3848 case DRM_FORMAT_NV42:
5a86bd55
VS		 3849 return plane ? 2 : 1;
3850 case DRM_FORMAT_YUV410:
3851 case DRM_FORMAT_YVU410:
3852 case DRM_FORMAT_YUV411:
3853 case DRM_FORMAT_YVU411:
3854 case DRM_FORMAT_YUV420:
3855 case DRM_FORMAT_YVU420:
3856 case DRM_FORMAT_YUV422:
3857 case DRM_FORMAT_YVU422:
3858 case DRM_FORMAT_YUV444:
3859 case DRM_FORMAT_YVU444:
3860 return 1;
3861 default:
3862 drm_fb_get_bpp_depth(format, &depth, &bpp);
3863 return bpp >> 3;
3864 }
3865}
3866EXPORT_SYMBOL(drm_format_plane_cpp);
01b68b04
VS		 3867
3868/**
3869 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3870 * @format: pixel format (DRM_FORMAT_*)
3871 *
3872 * RETURNS:
3873 * The horizontal chroma subsampling factor for the
3874 * specified pixel format.
3875 */
3876int drm_format_horz_chroma_subsampling(uint32_t format)
3877{
3878 switch (format) {
3879 case DRM_FORMAT_YUV411:
3880 case DRM_FORMAT_YVU411:
3881 case DRM_FORMAT_YUV410:
3882 case DRM_FORMAT_YVU410:
3883 return 4;
3884 case DRM_FORMAT_YUYV:
3885 case DRM_FORMAT_YVYU:
3886 case DRM_FORMAT_UYVY:
3887 case DRM_FORMAT_VYUY:
3888 case DRM_FORMAT_NV12:
3889 case DRM_FORMAT_NV21:
3890 case DRM_FORMAT_NV16:
3891 case DRM_FORMAT_NV61:
3892 case DRM_FORMAT_YUV422:
3893 case DRM_FORMAT_YVU422:
3894 case DRM_FORMAT_YUV420:
3895 case DRM_FORMAT_YVU420:
3896 return 2;
3897 default:
3898 return 1;
3899 }
3900}
3901EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3902
3903/**
3904 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3905 * @format: pixel format (DRM_FORMAT_*)
3906 *
3907 * RETURNS:
3908 * The vertical chroma subsampling factor for the
3909 * specified pixel format.
3910 */
3911int drm_format_vert_chroma_subsampling(uint32_t format)
3912{
3913 switch (format) {
3914 case DRM_FORMAT_YUV410:
3915 case DRM_FORMAT_YVU410:
3916 return 4;
3917 case DRM_FORMAT_YUV420:
3918 case DRM_FORMAT_YVU420:
3919 case DRM_FORMAT_NV12:
3920 case DRM_FORMAT_NV21:
3921 return 2;
3922 default:
3923 return 1;
3924 }
3925}
3926EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
87d24fc3
LP		 3927
3928/**
3929 * drm_mode_config_init - initialize DRM mode_configuration structure
3930 * @dev: DRM device
3931 *
3932 * Initialize @dev's mode_config structure, used for tracking the graphics
3933 * configuration of @dev.
3934 *
3935 * Since this initializes the modeset locks, no locking is possible. Which is no
3936 * problem, since this should happen single threaded at init time. It is the
3937 * driver's problem to ensure this guarantee.
3938 *
3939 */
3940void drm_mode_config_init(struct drm_device *dev)
3941{
3942 mutex_init(&dev->mode_config.mutex);
3943 mutex_init(&dev->mode_config.idr_mutex);
3944 mutex_init(&dev->mode_config.fb_lock);
3945 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3946 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3947 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3b336ec4 3948 INIT_LIST_HEAD(&dev->mode_config.bridge_list);
87d24fc3
LP		 3949 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3950 INIT_LIST_HEAD(&dev->mode_config.property_list);
3951 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3952 INIT_LIST_HEAD(&dev->mode_config.plane_list);
3953 idr_init(&dev->mode_config.crtc_idr);
3954
3955 drm_modeset_lock_all(dev);
3956 drm_mode_create_standard_connector_properties(dev);
3957 drm_modeset_unlock_all(dev);
3958
3959 /* Just to be sure */
3960 dev->mode_config.num_fb = 0;
3961 dev->mode_config.num_connector = 0;
3962 dev->mode_config.num_crtc = 0;
3963 dev->mode_config.num_encoder = 0;
3964}
3965EXPORT_SYMBOL(drm_mode_config_init);
3966
3967/**
3968 * drm_mode_config_cleanup - free up DRM mode_config info
3969 * @dev: DRM device
3970 *
3971 * Free up all the connectors and CRTCs associated with this DRM device, then
3972 * free up the framebuffers and associated buffer objects.
3973 *
3974 * Note that since this /should/ happen single-threaded at driver/device
3975 * teardown time, no locking is required. It's the driver's job to ensure that
3976 * this guarantee actually holds true.
3977 *
3978 * FIXME: cleanup any dangling user buffer objects too
3979 */
3980void drm_mode_config_cleanup(struct drm_device *dev)
3981{
3982 struct drm_connector *connector, *ot;
3983 struct drm_crtc *crtc, *ct;
3984 struct drm_encoder *encoder, *enct;
3b336ec4 3985 struct drm_bridge *bridge, *brt;
87d24fc3
LP		 3986 struct drm_framebuffer *fb, *fbt;
3987 struct drm_property *property, *pt;
3988 struct drm_property_blob *blob, *bt;
3989 struct drm_plane *plane, *plt;
3990
3991 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
3992 head) {
3993 encoder->funcs->destroy(encoder);
3994 }
3995
3b336ec4
SP		 3996 list_for_each_entry_safe(bridge, brt,
3997 &dev->mode_config.bridge_list, head) {
3998 bridge->funcs->destroy(bridge);
3999 }
4000
87d24fc3
LP		 4001 list_for_each_entry_safe(connector, ot,
4002 &dev->mode_config.connector_list, head) {
4003 connector->funcs->destroy(connector);
4004 }
4005
4006 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
4007 head) {
4008 drm_property_destroy(dev, property);
4009 }
4010
4011 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
4012 head) {
4013 drm_property_destroy_blob(dev, blob);
4014 }
4015
4016 /*
4017 * Single-threaded teardown context, so it's not required to grab the
4018 * fb_lock to protect against concurrent fb_list access. Contrary, it
4019 * would actually deadlock with the drm_framebuffer_cleanup function.
4020 *
4021 * Also, if there are any framebuffers left, that's a driver leak now,
4022 * so politely WARN about this.
4023 */
4024 WARN_ON(!list_empty(&dev->mode_config.fb_list));
4025 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
4026 drm_framebuffer_remove(fb);
4027 }
4028
4029 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
4030 head) {
4031 plane->funcs->destroy(plane);
4032 }
4033
4034 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
4035 crtc->funcs->destroy(crtc);
4036 }
4037
4038 idr_destroy(&dev->mode_config.crtc_idr);
4039}
4040EXPORT_SYMBOL(drm_mode_config_cleanup);
Linux kernel - Deliverables
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