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drm/edid: Yank a helpful comment about EST modes from xf86EdidModes.c
[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" },
b8923273 205 { DRM_MODE_CONNECTOR_DSI, "DSI" },
f453ba04
DA		 206};
207
d20d3174 208static const struct drm_prop_enum_list drm_encoder_enum_list[] =
f453ba04
DA		 209{ { DRM_MODE_ENCODER_NONE, "None" },
210 { DRM_MODE_ENCODER_DAC, "DAC" },
211 { DRM_MODE_ENCODER_TMDS, "TMDS" },
212 { DRM_MODE_ENCODER_LVDS, "LVDS" },
213 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 214 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
b8923273 215 { DRM_MODE_ENCODER_DSI, "DSI" },
f453ba04
DA		 216};
217
b21e3afe
IM		 218void drm_connector_ida_init(void)
219{
220 int i;
221
222 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
223 ida_init(&drm_connector_enum_list[i].ida);
224}
225
226void drm_connector_ida_destroy(void)
227{
228 int i;
229
230 for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++)
231 ida_destroy(&drm_connector_enum_list[i].ida);
232}
233
d20d3174 234const char *drm_get_encoder_name(const struct drm_encoder *encoder)
f453ba04
DA		 235{
236 static char buf[32];
237
238 snprintf(buf, 32, "%s-%d",
239 drm_encoder_enum_list[encoder->encoder_type].name,
240 encoder->base.id);
241 return buf;
242}
13a8195b 243EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04 244
d20d3174 245const char *drm_get_connector_name(const struct drm_connector *connector)
f453ba04
DA		 246{
247 static char buf[32];
248
249 snprintf(buf, 32, "%s-%d",
250 drm_connector_enum_list[connector->connector_type].name,
251 connector->connector_type_id);
252 return buf;
253}
254EXPORT_SYMBOL(drm_get_connector_name);
255
d20d3174 256const char *drm_get_connector_status_name(enum drm_connector_status status)
f453ba04
DA		 257{
258 if (status == connector_status_connected)
259 return "connected";
260 else if (status == connector_status_disconnected)
261 return "disconnected";
262 else
263 return "unknown";
264}
ed7951dc 265EXPORT_SYMBOL(drm_get_connector_status_name);
f453ba04 266
6ba6d03e
VS		 267static char printable_char(int c)
268{
269 return isascii(c) && isprint(c) ? c : '?';
270}
271
d20d3174 272const char *drm_get_format_name(uint32_t format)
6ba6d03e
VS		 273{
274 static char buf[32];
275
276 snprintf(buf, sizeof(buf),
277 "%c%c%c%c %s-endian (0x%08x)",
278 printable_char(format & 0xff),
279 printable_char((format >> 8) & 0xff),
280 printable_char((format >> 16) & 0xff),
281 printable_char((format >> 24) & 0x7f),
282 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
283 format);
284
285 return buf;
286}
287EXPORT_SYMBOL(drm_get_format_name);
288
f453ba04 289/**
065a50ed 290 * drm_mode_object_get - allocate a new modeset identifier
f453ba04 291 * @dev: DRM device
065a50ed
DV		 292 * @obj: object pointer, used to generate unique ID
293 * @obj_type: object type
f453ba04 294 *
f453ba04
DA		 295 * Create a unique identifier based on @ptr in @dev's identifier space. Used
296 * for tracking modes, CRTCs and connectors.
297 *
298 * RETURNS:
299 * New unique (relative to other objects in @dev) integer identifier for the
300 * object.
301 */
302static int drm_mode_object_get(struct drm_device *dev,
303 struct drm_mode_object *obj, uint32_t obj_type)
304{
f453ba04
DA		 305 int ret;
306
ad2563c2 307 mutex_lock(&dev->mode_config.idr_mutex);
2e928815
TH		 308 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
309 if (ret >= 0) {
4b096ac1
DV		 310 /*
311 * Set up the object linking under the protection of the idr
312 * lock so that other users can't see inconsistent state.
313 */
2e928815 314 obj->id = ret;
4b096ac1
DV		 315 obj->type = obj_type;
316 }
ad2563c2 317 mutex_unlock(&dev->mode_config.idr_mutex);
4b096ac1 318
2e928815 319 return ret < 0 ? ret : 0;
f453ba04
DA		 320}
321
322/**
065a50ed 323 * drm_mode_object_put - free a modeset identifer
f453ba04 324 * @dev: DRM device
065a50ed 325 * @object: object to free
f453ba04 326 *
f453ba04
DA		 327 * Free @id from @dev's unique identifier pool.
328 */
329static void drm_mode_object_put(struct drm_device *dev,
330 struct drm_mode_object *object)
331{
ad2563c2 332 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 333 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 334 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 335}
336
786b99ed
DV		 337/**
338 * drm_mode_object_find - look up a drm object with static lifetime
339 * @dev: drm device
340 * @id: id of the mode object
341 * @type: type of the mode object
342 *
343 * Note that framebuffers cannot be looked up with this functions - since those
344 * are reference counted, they need special treatment.
345 */
7a9c9060
DV		 346struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
347 uint32_t id, uint32_t type)
f453ba04 348{
ad2563c2 349 struct drm_mode_object *obj = NULL;
f453ba04 350
786b99ed
DV		 351 /* Framebuffers are reference counted and need their own lookup
352 * function.*/
353 WARN_ON(type == DRM_MODE_OBJECT_FB);
354
ad2563c2 355 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 356 obj = idr_find(&dev->mode_config.crtc_idr, id);
357 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 358 obj = NULL;
359 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 360
361 return obj;
362}
363EXPORT_SYMBOL(drm_mode_object_find);
364
f453ba04
DA		 365/**
366 * drm_framebuffer_init - initialize a framebuffer
367 * @dev: DRM device
065a50ed
DV		 368 * @fb: framebuffer to be initialized
369 * @funcs: ... with these functions
f453ba04 370 *
f453ba04
DA		 371 * Allocates an ID for the framebuffer's parent mode object, sets its mode
372 * functions & device file and adds it to the master fd list.
373 *
4b096ac1
DV		 374 * IMPORTANT:
375 * This functions publishes the fb and makes it available for concurrent access
376 * by other users. Which means by this point the fb _must_ be fully set up -
377 * since all the fb attributes are invariant over its lifetime, no further
378 * locking but only correct reference counting is required.
379 *
f453ba04 380 * RETURNS:
af901ca1 381 * Zero on success, error code on failure.
f453ba04
DA		 382 */
383int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
384 const struct drm_framebuffer_funcs *funcs)
385{
386 int ret;
387
4b096ac1 388 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e 389 kref_init(&fb->refcount);
4b096ac1
DV		 390 INIT_LIST_HEAD(&fb->filp_head);
391 fb->dev = dev;
392 fb->funcs = funcs;
f7eff60e 393
f453ba04 394 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
6bfc56aa 395 if (ret)
4b096ac1 396 goto out;
f453ba04 397
2b677e8c
DV		 398 /* Grab the idr reference. */
399 drm_framebuffer_reference(fb);
400
f453ba04
DA		 401 dev->mode_config.num_fb++;
402 list_add(&fb->head, &dev->mode_config.fb_list);
4b096ac1
DV		 403out:
404 mutex_unlock(&dev->mode_config.fb_lock);
f453ba04
DA		 405
406 return 0;
407}
408EXPORT_SYMBOL(drm_framebuffer_init);
409
f7eff60e
RC		 410static void drm_framebuffer_free(struct kref *kref)
411{
412 struct drm_framebuffer *fb =
413 container_of(kref, struct drm_framebuffer, refcount);
414 fb->funcs->destroy(fb);
415}
416
2b677e8c
DV		 417static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
418 uint32_t id)
419{
420 struct drm_mode_object *obj = NULL;
421 struct drm_framebuffer *fb;
422
423 mutex_lock(&dev->mode_config.idr_mutex);
424 obj = idr_find(&dev->mode_config.crtc_idr, id);
425 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
426 fb = NULL;
427 else
428 fb = obj_to_fb(obj);
429 mutex_unlock(&dev->mode_config.idr_mutex);
430
431 return fb;
432}
433
786b99ed
DV		 434/**
435 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
436 * @dev: drm device
437 * @id: id of the fb object
438 *
439 * If successful, this grabs an additional reference to the framebuffer -
440 * callers need to make sure to eventually unreference the returned framebuffer
441 * again.
442 */
443struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
444 uint32_t id)
445{
786b99ed
DV		 446 struct drm_framebuffer *fb;
447
448 mutex_lock(&dev->mode_config.fb_lock);
2b677e8c 449 fb = __drm_framebuffer_lookup(dev, id);
786b99ed 450 if (fb)
9131d3d8 451 drm_framebuffer_reference(fb);
786b99ed
DV		 452 mutex_unlock(&dev->mode_config.fb_lock);
453
454 return fb;
455}
456EXPORT_SYMBOL(drm_framebuffer_lookup);
457
f7eff60e
RC		 458/**
459 * drm_framebuffer_unreference - unref a framebuffer
065a50ed
DV		 460 * @fb: framebuffer to unref
461 *
462 * This functions decrements the fb's refcount and frees it if it drops to zero.
f7eff60e
RC		 463 */
464void drm_framebuffer_unreference(struct drm_framebuffer *fb)
465{
f7eff60e 466 DRM_DEBUG("FB ID: %d\n", fb->base.id);
f7eff60e
RC		 467 kref_put(&fb->refcount, drm_framebuffer_free);
468}
469EXPORT_SYMBOL(drm_framebuffer_unreference);
470
471/**
472 * drm_framebuffer_reference - incr the fb refcnt
065a50ed 473 * @fb: framebuffer
f7eff60e
RC		 474 */
475void drm_framebuffer_reference(struct drm_framebuffer *fb)
476{
477 DRM_DEBUG("FB ID: %d\n", fb->base.id);
478 kref_get(&fb->refcount);
479}
480EXPORT_SYMBOL(drm_framebuffer_reference);
481
2b677e8c
DV		 482static void drm_framebuffer_free_bug(struct kref *kref)
483{
484 BUG();
485}
486
6c2a7532
DV		 487static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
488{
489 DRM_DEBUG("FB ID: %d\n", fb->base.id);
490 kref_put(&fb->refcount, drm_framebuffer_free_bug);
491}
492
2b677e8c
DV		 493/* dev->mode_config.fb_lock must be held! */
494static void __drm_framebuffer_unregister(struct drm_device *dev,
495 struct drm_framebuffer *fb)
496{
497 mutex_lock(&dev->mode_config.idr_mutex);
498 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
499 mutex_unlock(&dev->mode_config.idr_mutex);
500
501 fb->base.id = 0;
502
6c2a7532 503 __drm_framebuffer_unreference(fb);
2b677e8c
DV		 504}
505
36206361
DV		 506/**
507 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
508 * @fb: fb to unregister
509 *
510 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
511 * those used for fbdev. Note that the caller must hold a reference of it's own,
512 * i.e. the object may not be destroyed through this call (since it'll lead to a
513 * locking inversion).
514 */
515void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
516{
2b677e8c
DV		 517 struct drm_device *dev = fb->dev;
518
519 mutex_lock(&dev->mode_config.fb_lock);
520 /* Mark fb as reaped and drop idr ref. */
521 __drm_framebuffer_unregister(dev, fb);
522 mutex_unlock(&dev->mode_config.fb_lock);
36206361
DV		 523}
524EXPORT_SYMBOL(drm_framebuffer_unregister_private);
525
f453ba04
DA		 526/**
527 * drm_framebuffer_cleanup - remove a framebuffer object
528 * @fb: framebuffer to remove
529 *
36206361
DV		 530 * Cleanup references to a user-created framebuffer. This function is intended
531 * to be used from the drivers ->destroy callback.
532 *
533 * Note that this function does not remove the fb from active usuage - if it is
534 * still used anywhere, hilarity can ensue since userspace could call getfb on
535 * the id and get back -EINVAL. Obviously no concern at driver unload time.
536 *
537 * Also, the framebuffer will not be removed from the lookup idr - for
538 * user-created framebuffers this will happen in in the rmfb ioctl. For
539 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
540 * drm_framebuffer_unregister_private.
f453ba04
DA		 541 */
542void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
f7eff60e
RC		 543{
544 struct drm_device *dev = fb->dev;
8faf6b18 545
4b096ac1 546 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e
RC		 547 list_del(&fb->head);
548 dev->mode_config.num_fb--;
4b096ac1 549 mutex_unlock(&dev->mode_config.fb_lock);
f7eff60e
RC		 550}
551EXPORT_SYMBOL(drm_framebuffer_cleanup);
552
553/**
554 * drm_framebuffer_remove - remove and unreference a framebuffer object
555 * @fb: framebuffer to remove
556 *
f7eff60e 557 * Scans all the CRTCs and planes in @dev's mode_config. If they're
36206361 558 * using @fb, removes it, setting it to NULL. Then drops the reference to the
b62584e3
DV		 559 * passed-in framebuffer. Might take the modeset locks.
560 *
561 * Note that this function optimizes the cleanup away if the caller holds the
562 * last reference to the framebuffer. It is also guaranteed to not take the
563 * modeset locks in this case.
f7eff60e
RC		 564 */
565void drm_framebuffer_remove(struct drm_framebuffer *fb)
f453ba04
DA		 566{
567 struct drm_device *dev = fb->dev;
568 struct drm_crtc *crtc;
8cf5c917 569 struct drm_plane *plane;
5ef5f72f
DA		 570 struct drm_mode_set set;
571 int ret;
f453ba04 572
4b096ac1 573 WARN_ON(!list_empty(&fb->filp_head));
8faf6b18 574
b62584e3
DV		 575 /*
576 * drm ABI mandates that we remove any deleted framebuffers from active
577 * useage. But since most sane clients only remove framebuffers they no
578 * longer need, try to optimize this away.
579 *
580 * Since we're holding a reference ourselves, observing a refcount of 1
581 * means that we're the last holder and can skip it. Also, the refcount
582 * can never increase from 1 again, so we don't need any barriers or
583 * locks.
584 *
585 * Note that userspace could try to race with use and instate a new
586 * usage _after_ we've cleared all current ones. End result will be an
587 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
588 * in this manner.
589 */
590 if (atomic_read(&fb->refcount.refcount) > 1) {
591 drm_modeset_lock_all(dev);
592 /* remove from any CRTC */
593 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
594 if (crtc->fb == fb) {
595 /* should turn off the crtc */
596 memset(&set, 0, sizeof(struct drm_mode_set));
597 set.crtc = crtc;
598 set.fb = NULL;
599 ret = drm_mode_set_config_internal(&set);
600 if (ret)
601 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
602 }
5ef5f72f 603 }
f453ba04 604
b62584e3 605 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
9125e618
VS		 606 if (plane->fb == fb)
607 drm_plane_force_disable(plane);
8cf5c917 608 }
b62584e3 609 drm_modeset_unlock_all(dev);
8cf5c917
JB		 610 }
611
f7eff60e 612 drm_framebuffer_unreference(fb);
f453ba04 613}
f7eff60e 614EXPORT_SYMBOL(drm_framebuffer_remove);
f453ba04
DA		 615
616/**
617 * drm_crtc_init - Initialise a new CRTC object
618 * @dev: DRM device
619 * @crtc: CRTC object to init
620 * @funcs: callbacks for the new CRTC
621 *
ad6f5c34 622 * Inits a new object created as base part of a driver crtc object.
6bfc56aa
VS		 623 *
624 * RETURNS:
625 * Zero on success, error code on failure.
f453ba04 626 */
6bfc56aa 627int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
f453ba04
DA		 628 const struct drm_crtc_funcs *funcs)
629{
6bfc56aa
VS		 630 int ret;
631
f453ba04
DA		 632 crtc->dev = dev;
633 crtc->funcs = funcs;
7c80e128 634 crtc->invert_dimensions = false;
f453ba04 635
84849903 636 drm_modeset_lock_all(dev);
29494c17
DV		 637 mutex_init(&crtc->mutex);
638 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
6bfc56aa
VS		 639
640 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
641 if (ret)
642 goto out;
f453ba04 643
bffd9de0
PZ		 644 crtc->base.properties = &crtc->properties;
645
f453ba04
DA		 646 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
647 dev->mode_config.num_crtc++;
6bfc56aa
VS		 648
649 out:
84849903 650 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 651
652 return ret;
f453ba04
DA		 653}
654EXPORT_SYMBOL(drm_crtc_init);
655
656/**
ad6f5c34 657 * drm_crtc_cleanup - Clean up the core crtc usage
f453ba04
DA		 658 * @crtc: CRTC to cleanup
659 *
ad6f5c34
VS		 660 * This function cleans up @crtc and removes it from the DRM mode setting
661 * core. Note that the function does *not* free the crtc structure itself,
662 * this is the responsibility of the caller.
f453ba04
DA		 663 */
664void drm_crtc_cleanup(struct drm_crtc *crtc)
665{
666 struct drm_device *dev = crtc->dev;
667
9e1c156f
SK		 668 kfree(crtc->gamma_store);
669 crtc->gamma_store = NULL;
f453ba04
DA		 670
671 drm_mode_object_put(dev, &crtc->base);
672 list_del(&crtc->head);
673 dev->mode_config.num_crtc--;
674}
675EXPORT_SYMBOL(drm_crtc_cleanup);
676
677/**
678 * drm_mode_probed_add - add a mode to a connector's probed mode list
679 * @connector: connector the new mode
680 * @mode: mode data
681 *
f453ba04
DA		 682 * Add @mode to @connector's mode list for later use.
683 */
684void drm_mode_probed_add(struct drm_connector *connector,
685 struct drm_display_mode *mode)
686{
990256ae 687 list_add_tail(&mode->head, &connector->probed_modes);
f453ba04
DA		 688}
689EXPORT_SYMBOL(drm_mode_probed_add);
690
86f422d5 691/*
f453ba04
DA		 692 * drm_mode_remove - remove and free a mode
693 * @connector: connector list to modify
694 * @mode: mode to remove
695 *
f453ba04
DA		 696 * Remove @mode from @connector's mode list, then free it.
697 */
86f422d5
LD		 698static void drm_mode_remove(struct drm_connector *connector,
699 struct drm_display_mode *mode)
f453ba04
DA		 700{
701 list_del(&mode->head);
554f1d78 702 drm_mode_destroy(connector->dev, mode);
f453ba04 703}
f453ba04
DA		 704
705/**
706 * drm_connector_init - Init a preallocated connector
707 * @dev: DRM device
708 * @connector: the connector to init
709 * @funcs: callbacks for this connector
065a50ed 710 * @connector_type: user visible type of the connector
f453ba04 711 *
f453ba04
DA		 712 * Initialises a preallocated connector. Connectors should be
713 * subclassed as part of driver connector objects.
6bfc56aa
VS		 714 *
715 * RETURNS:
716 * Zero on success, error code on failure.
f453ba04 717 */
6bfc56aa
VS		 718int drm_connector_init(struct drm_device *dev,
719 struct drm_connector *connector,
720 const struct drm_connector_funcs *funcs,
721 int connector_type)
f453ba04 722{
6bfc56aa 723 int ret;
b21e3afe
IM		 724 struct ida *connector_ida =
725 &drm_connector_enum_list[connector_type].ida;
6bfc56aa 726
84849903 727 drm_modeset_lock_all(dev);
f453ba04 728
6bfc56aa
VS		 729 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
730 if (ret)
731 goto out;
732
7e3bdf4a 733 connector->base.properties = &connector->properties;
f453ba04
DA		 734 connector->dev = dev;
735 connector->funcs = funcs;
f453ba04
DA		 736 connector->connector_type = connector_type;
737 connector->connector_type_id =
b21e3afe
IM		 738 ida_simple_get(connector_ida, 1, 0, GFP_KERNEL);
739 if (connector->connector_type_id < 0) {
740 ret = connector->connector_type_id;
741 drm_mode_object_put(dev, &connector->base);
742 goto out;
743 }
f453ba04
DA		 744 INIT_LIST_HEAD(&connector->probed_modes);
745 INIT_LIST_HEAD(&connector->modes);
746 connector->edid_blob_ptr = NULL;
5e2cb2f6 747 connector->status = connector_status_unknown;
f453ba04
DA		 748
749 list_add_tail(&connector->head, &dev->mode_config.connector_list);
750 dev->mode_config.num_connector++;
751
a7331e5c 752 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
58495563 753 drm_object_attach_property(&connector->base,
a7331e5c
TH		 754 dev->mode_config.edid_property,
755 0);
f453ba04 756
58495563 757 drm_object_attach_property(&connector->base,
f453ba04
DA		 758 dev->mode_config.dpms_property, 0);
759
6bfc56aa 760 out:
84849903 761 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 762
763 return ret;
f453ba04
DA		 764}
765EXPORT_SYMBOL(drm_connector_init);
766
767/**
768 * drm_connector_cleanup - cleans up an initialised connector
769 * @connector: connector to cleanup
770 *
f453ba04
DA		 771 * Cleans up the connector but doesn't free the object.
772 */
773void drm_connector_cleanup(struct drm_connector *connector)
774{
775 struct drm_device *dev = connector->dev;
776 struct drm_display_mode *mode, *t;
777
778 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
779 drm_mode_remove(connector, mode);
780
781 list_for_each_entry_safe(mode, t, &connector->modes, head)
782 drm_mode_remove(connector, mode);
783
b21e3afe
IM		 784 ida_remove(&drm_connector_enum_list[connector->connector_type].ida,
785 connector->connector_type_id);
786
f453ba04
DA		 787 drm_mode_object_put(dev, &connector->base);
788 list_del(&connector->head);
6380c509 789 dev->mode_config.num_connector--;
f453ba04
DA		 790}
791EXPORT_SYMBOL(drm_connector_cleanup);
792
cbc7e221
DA		 793void drm_connector_unplug_all(struct drm_device *dev)
794{
795 struct drm_connector *connector;
796
797 /* taking the mode config mutex ends up in a clash with sysfs */
798 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
799 drm_sysfs_connector_remove(connector);
800
801}
802EXPORT_SYMBOL(drm_connector_unplug_all);
803
3b336ec4
SP		 804int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
805 const struct drm_bridge_funcs *funcs)
806{
807 int ret;
808
809 drm_modeset_lock_all(dev);
810
811 ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE);
812 if (ret)
813 goto out;
814
815 bridge->dev = dev;
816 bridge->funcs = funcs;
817
818 list_add_tail(&bridge->head, &dev->mode_config.bridge_list);
819 dev->mode_config.num_bridge++;
820
821 out:
822 drm_modeset_unlock_all(dev);
823 return ret;
824}
825EXPORT_SYMBOL(drm_bridge_init);
826
827void drm_bridge_cleanup(struct drm_bridge *bridge)
828{
829 struct drm_device *dev = bridge->dev;
830
831 drm_modeset_lock_all(dev);
832 drm_mode_object_put(dev, &bridge->base);
833 list_del(&bridge->head);
834 dev->mode_config.num_bridge--;
835 drm_modeset_unlock_all(dev);
836}
837EXPORT_SYMBOL(drm_bridge_cleanup);
838
6bfc56aa 839int drm_encoder_init(struct drm_device *dev,
cbc7e221
DA		 840 struct drm_encoder *encoder,
841 const struct drm_encoder_funcs *funcs,
842 int encoder_type)
f453ba04 843{
6bfc56aa
VS		 844 int ret;
845
84849903 846 drm_modeset_lock_all(dev);
f453ba04 847
6bfc56aa
VS		 848 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
849 if (ret)
850 goto out;
f453ba04 851
6bfc56aa 852 encoder->dev = dev;
f453ba04
DA		 853 encoder->encoder_type = encoder_type;
854 encoder->funcs = funcs;
855
856 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
857 dev->mode_config.num_encoder++;
858
6bfc56aa 859 out:
84849903 860 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 861
862 return ret;
f453ba04
DA		 863}
864EXPORT_SYMBOL(drm_encoder_init);
865
866void drm_encoder_cleanup(struct drm_encoder *encoder)
867{
868 struct drm_device *dev = encoder->dev;
84849903 869 drm_modeset_lock_all(dev);
f453ba04
DA		 870 drm_mode_object_put(dev, &encoder->base);
871 list_del(&encoder->head);
6380c509 872 dev->mode_config.num_encoder--;
84849903 873 drm_modeset_unlock_all(dev);
f453ba04
DA		 874}
875EXPORT_SYMBOL(drm_encoder_cleanup);
876
35f2c3ae
VS		 877/**
878 * drm_plane_init - Initialise a new plane object
879 * @dev: DRM device
880 * @plane: plane object to init
881 * @possible_crtcs: bitmask of possible CRTCs
882 * @funcs: callbacks for the new plane
883 * @formats: array of supported formats (%DRM_FORMAT_*)
884 * @format_count: number of elements in @formats
885 * @priv: plane is private (hidden from userspace)?
886 *
887 * Inits a new object created as base part of a driver plane object.
888 *
889 * RETURNS:
890 * Zero on success, error code on failure.
891 */
8cf5c917
JB		 892int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
893 unsigned long possible_crtcs,
894 const struct drm_plane_funcs *funcs,
0a7eb243
RC		 895 const uint32_t *formats, uint32_t format_count,
896 bool priv)
8cf5c917 897{
6bfc56aa
VS		 898 int ret;
899
84849903 900 drm_modeset_lock_all(dev);
8cf5c917 901
6bfc56aa
VS		 902 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
903 if (ret)
904 goto out;
905
4d93914a 906 plane->base.properties = &plane->properties;
8cf5c917 907 plane->dev = dev;
8cf5c917
JB		 908 plane->funcs = funcs;
909 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
910 GFP_KERNEL);
911 if (!plane->format_types) {
912 DRM_DEBUG_KMS("out of memory when allocating plane\n");
913 drm_mode_object_put(dev, &plane->base);
6bfc56aa
VS		 914 ret = -ENOMEM;
915 goto out;
8cf5c917
JB		 916 }
917
308e5bcb 918 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 919 plane->format_count = format_count;
920 plane->possible_crtcs = possible_crtcs;
921
0a7eb243
RC		 922 /* private planes are not exposed to userspace, but depending on
923 * display hardware, might be convenient to allow sharing programming
924 * for the scanout engine with the crtc implementation.
925 */
926 if (!priv) {
927 list_add_tail(&plane->head, &dev->mode_config.plane_list);
928 dev->mode_config.num_plane++;
929 } else {
930 INIT_LIST_HEAD(&plane->head);
931 }
8cf5c917 932
6bfc56aa 933 out:
84849903 934 drm_modeset_unlock_all(dev);
8cf5c917 935
6bfc56aa 936 return ret;
8cf5c917
JB		 937}
938EXPORT_SYMBOL(drm_plane_init);
939
35f2c3ae
VS		 940/**
941 * drm_plane_cleanup - Clean up the core plane usage
942 * @plane: plane to cleanup
943 *
944 * This function cleans up @plane and removes it from the DRM mode setting
945 * core. Note that the function does *not* free the plane structure itself,
946 * this is the responsibility of the caller.
947 */
8cf5c917
JB		 948void drm_plane_cleanup(struct drm_plane *plane)
949{
950 struct drm_device *dev = plane->dev;
951
84849903 952 drm_modeset_lock_all(dev);
8cf5c917
JB		 953 kfree(plane->format_types);
954 drm_mode_object_put(dev, &plane->base);
0a7eb243
RC		 955 /* if not added to a list, it must be a private plane */
956 if (!list_empty(&plane->head)) {
957 list_del(&plane->head);
958 dev->mode_config.num_plane--;
959 }
84849903 960 drm_modeset_unlock_all(dev);
8cf5c917
JB		 961}
962EXPORT_SYMBOL(drm_plane_cleanup);
963
35f2c3ae
VS		 964/**
965 * drm_plane_force_disable - Forcibly disable a plane
966 * @plane: plane to disable
967 *
968 * Forces the plane to be disabled.
969 *
970 * Used when the plane's current framebuffer is destroyed,
971 * and when restoring fbdev mode.
972 */
9125e618
VS		 973void drm_plane_force_disable(struct drm_plane *plane)
974{
975 int ret;
976
977 if (!plane->fb)
978 return;
979
980 ret = plane->funcs->disable_plane(plane);
981 if (ret)
982 DRM_ERROR("failed to disable plane with busy fb\n");
983 /* disconnect the plane from the fb and crtc: */
984 __drm_framebuffer_unreference(plane->fb);
985 plane->fb = NULL;
986 plane->crtc = NULL;
987}
988EXPORT_SYMBOL(drm_plane_force_disable);
989
f453ba04
DA		 990/**
991 * drm_mode_create - create a new display mode
992 * @dev: DRM device
993 *
f453ba04
DA		 994 * Create a new drm_display_mode, give it an ID, and return it.
995 *
996 * RETURNS:
997 * Pointer to new mode on success, NULL on error.
998 */
999struct drm_display_mode *drm_mode_create(struct drm_device *dev)
1000{
1001 struct drm_display_mode *nmode;
1002
1003 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
1004 if (!nmode)
1005 return NULL;
1006
6bfc56aa
VS		 1007 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
1008 kfree(nmode);
1009 return NULL;
1010 }
1011
f453ba04
DA		 1012 return nmode;
1013}
1014EXPORT_SYMBOL(drm_mode_create);
1015
1016/**
1017 * drm_mode_destroy - remove a mode
1018 * @dev: DRM device
1019 * @mode: mode to remove
1020 *
f453ba04
DA		 1021 * Free @mode's unique identifier, then free it.
1022 */
1023void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
1024{
ee34ab5b
VS		 1025 if (!mode)
1026 return;
1027
f453ba04
DA		 1028 drm_mode_object_put(dev, &mode->base);
1029
1030 kfree(mode);
1031}
1032EXPORT_SYMBOL(drm_mode_destroy);
1033
1034static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
1035{
1036 struct drm_property *edid;
1037 struct drm_property *dpms;
f453ba04
DA		 1038
1039 /*
1040 * Standard properties (apply to all connectors)
1041 */
1042 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
1043 DRM_MODE_PROP_IMMUTABLE,
1044 "EDID", 0);
1045 dev->mode_config.edid_property = edid;
1046
4a67d391
SH		 1047 dpms = drm_property_create_enum(dev, 0,
1048 "DPMS", drm_dpms_enum_list,
1049 ARRAY_SIZE(drm_dpms_enum_list));
f453ba04
DA		 1050 dev->mode_config.dpms_property = dpms;
1051
1052 return 0;
1053}
1054
1055/**
1056 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
1057 * @dev: DRM device
1058 *
1059 * Called by a driver the first time a DVI-I connector is made.
1060 */
1061int drm_mode_create_dvi_i_properties(struct drm_device *dev)
1062{
1063 struct drm_property *dvi_i_selector;
1064 struct drm_property *dvi_i_subconnector;
f453ba04
DA		 1065
1066 if (dev->mode_config.dvi_i_select_subconnector_property)
1067 return 0;
1068
1069 dvi_i_selector =
4a67d391 1070 drm_property_create_enum(dev, 0,
f453ba04 1071 "select subconnector",
4a67d391 1072 drm_dvi_i_select_enum_list,
f453ba04 1073 ARRAY_SIZE(drm_dvi_i_select_enum_list));
f453ba04
DA		 1074 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
1075
4a67d391 1076 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
f453ba04 1077 "subconnector",
4a67d391 1078 drm_dvi_i_subconnector_enum_list,
f453ba04 1079 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
f453ba04
DA		 1080 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
1081
1082 return 0;
1083}
1084EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
1085
1086/**
1087 * drm_create_tv_properties - create TV specific connector properties
1088 * @dev: DRM device
1089 * @num_modes: number of different TV formats (modes) supported
1090 * @modes: array of pointers to strings containing name of each format
1091 *
1092 * Called by a driver's TV initialization routine, this function creates
1093 * the TV specific connector properties for a given device. Caller is
1094 * responsible for allocating a list of format names and passing them to
1095 * this routine.
1096 */
1097int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1098 char *modes[])
1099{
1100 struct drm_property *tv_selector;
1101 struct drm_property *tv_subconnector;
1102 int i;
1103
1104 if (dev->mode_config.tv_select_subconnector_property)
1105 return 0;
1106
1107 /*
1108 * Basic connector properties
1109 */
4a67d391 1110 tv_selector = drm_property_create_enum(dev, 0,
f453ba04 1111 "select subconnector",
4a67d391 1112 drm_tv_select_enum_list,
f453ba04 1113 ARRAY_SIZE(drm_tv_select_enum_list));
f453ba04
DA		 1114 dev->mode_config.tv_select_subconnector_property = tv_selector;
1115
1116 tv_subconnector =
4a67d391
SH		 1117 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1118 "subconnector",
1119 drm_tv_subconnector_enum_list,
f453ba04 1120 ARRAY_SIZE(drm_tv_subconnector_enum_list));
f453ba04
DA		 1121 dev->mode_config.tv_subconnector_property = tv_subconnector;
1122
1123 /*
1124 * Other, TV specific properties: margins & TV modes.
1125 */
1126 dev->mode_config.tv_left_margin_property =
d9bc3c02 1127 drm_property_create_range(dev, 0, "left margin", 0, 100);
f453ba04
DA		 1128
1129 dev->mode_config.tv_right_margin_property =
d9bc3c02 1130 drm_property_create_range(dev, 0, "right margin", 0, 100);
f453ba04
DA		 1131
1132 dev->mode_config.tv_top_margin_property =
d9bc3c02 1133 drm_property_create_range(dev, 0, "top margin", 0, 100);
f453ba04
DA		 1134
1135 dev->mode_config.tv_bottom_margin_property =
d9bc3c02 1136 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
f453ba04
DA		 1137
1138 dev->mode_config.tv_mode_property =
1139 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1140 "mode", num_modes);
1141 for (i = 0; i < num_modes; i++)
1142 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1143 i, modes[i]);
1144
b6b7902e 1145 dev->mode_config.tv_brightness_property =
d9bc3c02 1146 drm_property_create_range(dev, 0, "brightness", 0, 100);
b6b7902e
FJ		 1147
1148 dev->mode_config.tv_contrast_property =
d9bc3c02 1149 drm_property_create_range(dev, 0, "contrast", 0, 100);
b6b7902e
FJ		 1150
1151 dev->mode_config.tv_flicker_reduction_property =
d9bc3c02 1152 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
b6b7902e 1153
a75f0236 1154 dev->mode_config.tv_overscan_property =
d9bc3c02 1155 drm_property_create_range(dev, 0, "overscan", 0, 100);
a75f0236
FJ		 1156
1157 dev->mode_config.tv_saturation_property =
d9bc3c02 1158 drm_property_create_range(dev, 0, "saturation", 0, 100);
a75f0236
FJ		 1159
1160 dev->mode_config.tv_hue_property =
d9bc3c02 1161 drm_property_create_range(dev, 0, "hue", 0, 100);
a75f0236 1162
f453ba04
DA		 1163 return 0;
1164}
1165EXPORT_SYMBOL(drm_mode_create_tv_properties);
1166
1167/**
1168 * drm_mode_create_scaling_mode_property - create scaling mode property
1169 * @dev: DRM device
1170 *
1171 * Called by a driver the first time it's needed, must be attached to desired
1172 * connectors.
1173 */
1174int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1175{
1176 struct drm_property *scaling_mode;
f453ba04
DA		 1177
1178 if (dev->mode_config.scaling_mode_property)
1179 return 0;
1180
1181 scaling_mode =
4a67d391
SH		 1182 drm_property_create_enum(dev, 0, "scaling mode",
1183 drm_scaling_mode_enum_list,
f453ba04 1184 ARRAY_SIZE(drm_scaling_mode_enum_list));
f453ba04
DA		 1185
1186 dev->mode_config.scaling_mode_property = scaling_mode;
1187
1188 return 0;
1189}
1190EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1191
884840aa
JB		 1192/**
1193 * drm_mode_create_dirty_property - create dirty property
1194 * @dev: DRM device
1195 *
1196 * Called by a driver the first time it's needed, must be attached to desired
1197 * connectors.
1198 */
1199int drm_mode_create_dirty_info_property(struct drm_device *dev)
1200{
1201 struct drm_property *dirty_info;
884840aa
JB		 1202
1203 if (dev->mode_config.dirty_info_property)
1204 return 0;
1205
1206 dirty_info =
4a67d391 1207 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
884840aa 1208 "dirty",
4a67d391 1209 drm_dirty_info_enum_list,
884840aa 1210 ARRAY_SIZE(drm_dirty_info_enum_list));
884840aa
JB		 1211 dev->mode_config.dirty_info_property = dirty_info;
1212
1213 return 0;
1214}
1215EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1216
ea9cbb06 1217static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
f453ba04
DA		 1218{
1219 uint32_t total_objects = 0;
1220
1221 total_objects += dev->mode_config.num_crtc;
1222 total_objects += dev->mode_config.num_connector;
1223 total_objects += dev->mode_config.num_encoder;
3b336ec4 1224 total_objects += dev->mode_config.num_bridge;
f453ba04 1225
f453ba04
DA		 1226 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1227 if (!group->id_list)
1228 return -ENOMEM;
1229
1230 group->num_crtcs = 0;
1231 group->num_connectors = 0;
1232 group->num_encoders = 0;
3b336ec4 1233 group->num_bridges = 0;
f453ba04
DA		 1234 return 0;
1235}
1236
1237int drm_mode_group_init_legacy_group(struct drm_device *dev,
1238 struct drm_mode_group *group)
1239{
1240 struct drm_crtc *crtc;
1241 struct drm_encoder *encoder;
1242 struct drm_connector *connector;
3b336ec4 1243 struct drm_bridge *bridge;
f453ba04
DA		 1244 int ret;
1245
1246 if ((ret = drm_mode_group_init(dev, group)))
1247 return ret;
1248
1249 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1250 group->id_list[group->num_crtcs++] = crtc->base.id;
1251
1252 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1253 group->id_list[group->num_crtcs + group->num_encoders++] =
1254 encoder->base.id;
1255
1256 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1257 group->id_list[group->num_crtcs + group->num_encoders +
1258 group->num_connectors++] = connector->base.id;
1259
3b336ec4
SP		 1260 list_for_each_entry(bridge, &dev->mode_config.bridge_list, head)
1261 group->id_list[group->num_crtcs + group->num_encoders +
1262 group->num_connectors + group->num_bridges++] =
1263 bridge->base.id;
1264
f453ba04
DA		 1265 return 0;
1266}
9c1dfc55 1267EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
f453ba04 1268
f453ba04
DA		 1269/**
1270 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1271 * @out: drm_mode_modeinfo struct to return to the user
1272 * @in: drm_display_mode to use
1273 *
f453ba04
DA		 1274 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1275 * the user.
1276 */
93bbf6db
VS		 1277static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1278 const struct drm_display_mode *in)
f453ba04 1279{
e36fae38
VS		 1280 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1281 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1282 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1283 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1284 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1285 "timing values too large for mode info\n");
1286
f453ba04
DA		 1287 out->clock = in->clock;
1288 out->hdisplay = in->hdisplay;
1289 out->hsync_start = in->hsync_start;
1290 out->hsync_end = in->hsync_end;
1291 out->htotal = in->htotal;
1292 out->hskew = in->hskew;
1293 out->vdisplay = in->vdisplay;
1294 out->vsync_start = in->vsync_start;
1295 out->vsync_end = in->vsync_end;
1296 out->vtotal = in->vtotal;
1297 out->vscan = in->vscan;
1298 out->vrefresh = in->vrefresh;
1299 out->flags = in->flags;
1300 out->type = in->type;
1301 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1302 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1303}
1304
1305/**
74afee7d 1306 * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode
f453ba04
DA		 1307 * @out: drm_display_mode to return to the user
1308 * @in: drm_mode_modeinfo to use
1309 *
f453ba04
DA		 1310 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1311 * the caller.
90367bf6
VS		 1312 *
1313 * RETURNS:
1314 * Zero on success, errno on failure.
f453ba04 1315 */
93bbf6db
VS		 1316static int drm_crtc_convert_umode(struct drm_display_mode *out,
1317 const struct drm_mode_modeinfo *in)
f453ba04 1318{
90367bf6
VS		 1319 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1320 return -ERANGE;
1321
5848ad40
DL		 1322 if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX)
1323 return -EINVAL;
1324
f453ba04
DA		 1325 out->clock = in->clock;
1326 out->hdisplay = in->hdisplay;
1327 out->hsync_start = in->hsync_start;
1328 out->hsync_end = in->hsync_end;
1329 out->htotal = in->htotal;
1330 out->hskew = in->hskew;
1331 out->vdisplay = in->vdisplay;
1332 out->vsync_start = in->vsync_start;
1333 out->vsync_end = in->vsync_end;
1334 out->vtotal = in->vtotal;
1335 out->vscan = in->vscan;
1336 out->vrefresh = in->vrefresh;
1337 out->flags = in->flags;
1338 out->type = in->type;
1339 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1340 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
90367bf6
VS		 1341
1342 return 0;
f453ba04
DA		 1343}
1344
1345/**
1346 * drm_mode_getresources - get graphics configuration
065a50ed
DV		 1347 * @dev: drm device for the ioctl
1348 * @data: data pointer for the ioctl
1349 * @file_priv: drm file for the ioctl call
f453ba04 1350 *
f453ba04
DA		 1351 * Construct a set of configuration description structures and return
1352 * them to the user, including CRTC, connector and framebuffer configuration.
1353 *
1354 * Called by the user via ioctl.
1355 *
1356 * RETURNS:
1357 * Zero on success, errno on failure.
1358 */
1359int drm_mode_getresources(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv)
1361{
1362 struct drm_mode_card_res *card_res = data;
1363 struct list_head *lh;
1364 struct drm_framebuffer *fb;
1365 struct drm_connector *connector;
1366 struct drm_crtc *crtc;
1367 struct drm_encoder *encoder;
1368 int ret = 0;
1369 int connector_count = 0;
1370 int crtc_count = 0;
1371 int fb_count = 0;
1372 int encoder_count = 0;
1373 int copied = 0, i;
1374 uint32_t __user *fb_id;
1375 uint32_t __user *crtc_id;
1376 uint32_t __user *connector_id;
1377 uint32_t __user *encoder_id;
1378 struct drm_mode_group *mode_group;
1379
fb3b06c8
DA		 1380 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1381 return -EINVAL;
1382
f453ba04 1383
4b096ac1 1384 mutex_lock(&file_priv->fbs_lock);
f453ba04
DA		 1385 /*
1386 * For the non-control nodes we need to limit the list of resources
1387 * by IDs in the group list for this node
1388 */
1389 list_for_each(lh, &file_priv->fbs)
1390 fb_count++;
1391
4b096ac1
DV		 1392 /* handle this in 4 parts */
1393 /* FBs */
1394 if (card_res->count_fbs >= fb_count) {
1395 copied = 0;
1396 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1397 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1398 if (put_user(fb->base.id, fb_id + copied)) {
1399 mutex_unlock(&file_priv->fbs_lock);
1400 return -EFAULT;
1401 }
1402 copied++;
1403 }
1404 }
1405 card_res->count_fbs = fb_count;
1406 mutex_unlock(&file_priv->fbs_lock);
1407
1408 drm_modeset_lock_all(dev);
f453ba04
DA		 1409 mode_group = &file_priv->master->minor->mode_group;
1410 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1411
1412 list_for_each(lh, &dev->mode_config.crtc_list)
1413 crtc_count++;
1414
1415 list_for_each(lh, &dev->mode_config.connector_list)
1416 connector_count++;
1417
1418 list_for_each(lh, &dev->mode_config.encoder_list)
1419 encoder_count++;
1420 } else {
1421
1422 crtc_count = mode_group->num_crtcs;
1423 connector_count = mode_group->num_connectors;
1424 encoder_count = mode_group->num_encoders;
1425 }
1426
1427 card_res->max_height = dev->mode_config.max_height;
1428 card_res->min_height = dev->mode_config.min_height;
1429 card_res->max_width = dev->mode_config.max_width;
1430 card_res->min_width = dev->mode_config.min_width;
1431
f453ba04
DA		 1432 /* CRTCs */
1433 if (card_res->count_crtcs >= crtc_count) {
1434 copied = 0;
1435 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1436 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1437 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1438 head) {
9440106b 1439 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1440 if (put_user(crtc->base.id, crtc_id + copied)) {
1441 ret = -EFAULT;
1442 goto out;
1443 }
1444 copied++;
1445 }
1446 } else {
1447 for (i = 0; i < mode_group->num_crtcs; i++) {
1448 if (put_user(mode_group->id_list[i],
1449 crtc_id + copied)) {
1450 ret = -EFAULT;
1451 goto out;
1452 }
1453 copied++;
1454 }
1455 }
1456 }
1457 card_res->count_crtcs = crtc_count;
1458
1459 /* Encoders */
1460 if (card_res->count_encoders >= encoder_count) {
1461 copied = 0;
1462 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1463 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1464 list_for_each_entry(encoder,
1465 &dev->mode_config.encoder_list,
1466 head) {
9440106b
JG		 1467 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1468 drm_get_encoder_name(encoder));
f453ba04
DA		 1469 if (put_user(encoder->base.id, encoder_id +
1470 copied)) {
1471 ret = -EFAULT;
1472 goto out;
1473 }
1474 copied++;
1475 }
1476 } else {
1477 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1478 if (put_user(mode_group->id_list[i],
1479 encoder_id + copied)) {
1480 ret = -EFAULT;
1481 goto out;
1482 }
1483 copied++;
1484 }
1485
1486 }
1487 }
1488 card_res->count_encoders = encoder_count;
1489
1490 /* Connectors */
1491 if (card_res->count_connectors >= connector_count) {
1492 copied = 0;
1493 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1494 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1495 list_for_each_entry(connector,
1496 &dev->mode_config.connector_list,
1497 head) {
9440106b
JG		 1498 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1499 connector->base.id,
1500 drm_get_connector_name(connector));
f453ba04
DA		 1501 if (put_user(connector->base.id,
1502 connector_id + copied)) {
1503 ret = -EFAULT;
1504 goto out;
1505 }
1506 copied++;
1507 }
1508 } else {
1509 int start = mode_group->num_crtcs +
1510 mode_group->num_encoders;
1511 for (i = start; i < start + mode_group->num_connectors; i++) {
1512 if (put_user(mode_group->id_list[i],
1513 connector_id + copied)) {
1514 ret = -EFAULT;
1515 goto out;
1516 }
1517 copied++;
1518 }
1519 }
1520 }
1521 card_res->count_connectors = connector_count;
1522
9440106b 1523 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1524 card_res->count_connectors, card_res->count_encoders);
1525
1526out:
84849903 1527 drm_modeset_unlock_all(dev);
f453ba04
DA		 1528 return ret;
1529}
1530
1531/**
1532 * drm_mode_getcrtc - get CRTC configuration
065a50ed
DV		 1533 * @dev: drm device for the ioctl
1534 * @data: data pointer for the ioctl
1535 * @file_priv: drm file for the ioctl call
f453ba04 1536 *
f453ba04
DA		 1537 * Construct a CRTC configuration structure to return to the user.
1538 *
1539 * Called by the user via ioctl.
1540 *
1541 * RETURNS:
1542 * Zero on success, errno on failure.
1543 */
1544int drm_mode_getcrtc(struct drm_device *dev,
1545 void *data, struct drm_file *file_priv)
1546{
1547 struct drm_mode_crtc *crtc_resp = data;
1548 struct drm_crtc *crtc;
1549 struct drm_mode_object *obj;
1550 int ret = 0;
1551
fb3b06c8
DA		 1552 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1553 return -EINVAL;
1554
84849903 1555 drm_modeset_lock_all(dev);
f453ba04
DA		 1556
1557 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1558 DRM_MODE_OBJECT_CRTC);
1559 if (!obj) {
f27657f2 1560 ret = -ENOENT;
f453ba04
DA		 1561 goto out;
1562 }
1563 crtc = obj_to_crtc(obj);
1564
1565 crtc_resp->x = crtc->x;
1566 crtc_resp->y = crtc->y;
1567 crtc_resp->gamma_size = crtc->gamma_size;
1568 if (crtc->fb)
1569 crtc_resp->fb_id = crtc->fb->base.id;
1570 else
1571 crtc_resp->fb_id = 0;
1572
1573 if (crtc->enabled) {
1574
1575 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1576 crtc_resp->mode_valid = 1;
1577
1578 } else {
1579 crtc_resp->mode_valid = 0;
1580 }
1581
1582out:
84849903 1583 drm_modeset_unlock_all(dev);
f453ba04
DA		 1584 return ret;
1585}
1586
61d8e328
DL		 1587static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode,
1588 const struct drm_file *file_priv)
1589{
1590 /*
1591 * If user-space hasn't configured the driver to expose the stereo 3D
1592 * modes, don't expose them.
1593 */
1594 if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode))
1595 return false;
1596
1597 return true;
1598}
1599
f453ba04
DA		 1600/**
1601 * drm_mode_getconnector - get connector configuration
065a50ed
DV		 1602 * @dev: drm device for the ioctl
1603 * @data: data pointer for the ioctl
1604 * @file_priv: drm file for the ioctl call
f453ba04 1605 *
f453ba04
DA		 1606 * Construct a connector configuration structure to return to the user.
1607 *
1608 * Called by the user via ioctl.
1609 *
1610 * RETURNS:
1611 * Zero on success, errno on failure.
1612 */
1613int drm_mode_getconnector(struct drm_device *dev, void *data,
1614 struct drm_file *file_priv)
1615{
1616 struct drm_mode_get_connector *out_resp = data;
1617 struct drm_mode_object *obj;
1618 struct drm_connector *connector;
1619 struct drm_display_mode *mode;
1620 int mode_count = 0;
1621 int props_count = 0;
1622 int encoders_count = 0;
1623 int ret = 0;
1624 int copied = 0;
1625 int i;
1626 struct drm_mode_modeinfo u_mode;
1627 struct drm_mode_modeinfo __user *mode_ptr;
1628 uint32_t __user *prop_ptr;
1629 uint64_t __user *prop_values;
1630 uint32_t __user *encoder_ptr;
1631
fb3b06c8
DA		 1632 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1633 return -EINVAL;
1634
f453ba04
DA		 1635 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1636
9440106b 1637 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04 1638
7b24056b 1639 mutex_lock(&dev->mode_config.mutex);
f453ba04
DA		 1640
1641 obj = drm_mode_object_find(dev, out_resp->connector_id,
1642 DRM_MODE_OBJECT_CONNECTOR);
1643 if (!obj) {
f27657f2 1644 ret = -ENOENT;
f453ba04
DA		 1645 goto out;
1646 }
1647 connector = obj_to_connector(obj);
1648
7f88a9be 1649 props_count = connector->properties.count;
f453ba04
DA		 1650
1651 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1652 if (connector->encoder_ids[i] != 0) {
1653 encoders_count++;
1654 }
1655 }
1656
1657 if (out_resp->count_modes == 0) {
1658 connector->funcs->fill_modes(connector,
1659 dev->mode_config.max_width,
1660 dev->mode_config.max_height);
1661 }
1662
1663 /* delayed so we get modes regardless of pre-fill_modes state */
1664 list_for_each_entry(mode, &connector->modes, head)
61d8e328
DL		 1665 if (drm_mode_expose_to_userspace(mode, file_priv))
1666 mode_count++;
f453ba04
DA		 1667
1668 out_resp->connector_id = connector->base.id;
1669 out_resp->connector_type = connector->connector_type;
1670 out_resp->connector_type_id = connector->connector_type_id;
1671 out_resp->mm_width = connector->display_info.width_mm;
1672 out_resp->mm_height = connector->display_info.height_mm;
1673 out_resp->subpixel = connector->display_info.subpixel_order;
1674 out_resp->connection = connector->status;
1675 if (connector->encoder)
1676 out_resp->encoder_id = connector->encoder->base.id;
1677 else
1678 out_resp->encoder_id = 0;
1679
1680 /*
1681 * This ioctl is called twice, once to determine how much space is
1682 * needed, and the 2nd time to fill it.
1683 */
1684 if ((out_resp->count_modes >= mode_count) && mode_count) {
1685 copied = 0;
81f6c7f8 1686 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04 1687 list_for_each_entry(mode, &connector->modes, head) {
61d8e328
DL		 1688 if (!drm_mode_expose_to_userspace(mode, file_priv))
1689 continue;
1690
f453ba04
DA		 1691 drm_crtc_convert_to_umode(&u_mode, mode);
1692 if (copy_to_user(mode_ptr + copied,
1693 &u_mode, sizeof(u_mode))) {
1694 ret = -EFAULT;
1695 goto out;
1696 }
1697 copied++;
1698 }
1699 }
1700 out_resp->count_modes = mode_count;
1701
1702 if ((out_resp->count_props >= props_count) && props_count) {
1703 copied = 0;
81f6c7f8
VS		 1704 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1705 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
7f88a9be
PZ		 1706 for (i = 0; i < connector->properties.count; i++) {
1707 if (put_user(connector->properties.ids[i],
1708 prop_ptr + copied)) {
1709 ret = -EFAULT;
1710 goto out;
1711 }
f453ba04 1712
7f88a9be
PZ		 1713 if (put_user(connector->properties.values[i],
1714 prop_values + copied)) {
1715 ret = -EFAULT;
1716 goto out;
f453ba04 1717 }
7f88a9be 1718 copied++;
f453ba04
DA		 1719 }
1720 }
1721 out_resp->count_props = props_count;
1722
1723 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1724 copied = 0;
81f6c7f8 1725 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1726 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1727 if (connector->encoder_ids[i] != 0) {
1728 if (put_user(connector->encoder_ids[i],
1729 encoder_ptr + copied)) {
1730 ret = -EFAULT;
1731 goto out;
1732 }
1733 copied++;
1734 }
1735 }
1736 }
1737 out_resp->count_encoders = encoders_count;
1738
1739out:
7b24056b
DV		 1740 mutex_unlock(&dev->mode_config.mutex);
1741
f453ba04
DA		 1742 return ret;
1743}
1744
1745int drm_mode_getencoder(struct drm_device *dev, void *data,
1746 struct drm_file *file_priv)
1747{
1748 struct drm_mode_get_encoder *enc_resp = data;
1749 struct drm_mode_object *obj;
1750 struct drm_encoder *encoder;
1751 int ret = 0;
1752
fb3b06c8
DA		 1753 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1754 return -EINVAL;
1755
84849903 1756 drm_modeset_lock_all(dev);
f453ba04
DA		 1757 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1758 DRM_MODE_OBJECT_ENCODER);
1759 if (!obj) {
f27657f2 1760 ret = -ENOENT;
f453ba04
DA		 1761 goto out;
1762 }
1763 encoder = obj_to_encoder(obj);
1764
1765 if (encoder->crtc)
1766 enc_resp->crtc_id = encoder->crtc->base.id;
1767 else
1768 enc_resp->crtc_id = 0;
1769 enc_resp->encoder_type = encoder->encoder_type;
1770 enc_resp->encoder_id = encoder->base.id;
1771 enc_resp->possible_crtcs = encoder->possible_crtcs;
1772 enc_resp->possible_clones = encoder->possible_clones;
1773
1774out:
84849903 1775 drm_modeset_unlock_all(dev);
f453ba04
DA		 1776 return ret;
1777}
1778
8cf5c917
JB		 1779/**
1780 * drm_mode_getplane_res - get plane info
1781 * @dev: DRM device
1782 * @data: ioctl data
1783 * @file_priv: DRM file info
1784 *
1785 * Return an plane count and set of IDs.
1786 */
1787int drm_mode_getplane_res(struct drm_device *dev, void *data,
1788 struct drm_file *file_priv)
1789{
1790 struct drm_mode_get_plane_res *plane_resp = data;
1791 struct drm_mode_config *config;
1792 struct drm_plane *plane;
1793 uint32_t __user *plane_ptr;
1794 int copied = 0, ret = 0;
1795
1796 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1797 return -EINVAL;
1798
84849903 1799 drm_modeset_lock_all(dev);
8cf5c917
JB		 1800 config = &dev->mode_config;
1801
1802 /*
1803 * This ioctl is called twice, once to determine how much space is
1804 * needed, and the 2nd time to fill it.
1805 */
1806 if (config->num_plane &&
1807 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1808 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1809
1810 list_for_each_entry(plane, &config->plane_list, head) {
1811 if (put_user(plane->base.id, plane_ptr + copied)) {
1812 ret = -EFAULT;
1813 goto out;
1814 }
1815 copied++;
1816 }
1817 }
1818 plane_resp->count_planes = config->num_plane;
1819
1820out:
84849903 1821 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1822 return ret;
1823}
1824
1825/**
1826 * drm_mode_getplane - get plane info
1827 * @dev: DRM device
1828 * @data: ioctl data
1829 * @file_priv: DRM file info
1830 *
1831 * Return plane info, including formats supported, gamma size, any
1832 * current fb, etc.
1833 */
1834int drm_mode_getplane(struct drm_device *dev, void *data,
1835 struct drm_file *file_priv)
1836{
1837 struct drm_mode_get_plane *plane_resp = data;
1838 struct drm_mode_object *obj;
1839 struct drm_plane *plane;
1840 uint32_t __user *format_ptr;
1841 int ret = 0;
1842
1843 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1844 return -EINVAL;
1845
84849903 1846 drm_modeset_lock_all(dev);
8cf5c917
JB		 1847 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1848 DRM_MODE_OBJECT_PLANE);
1849 if (!obj) {
1850 ret = -ENOENT;
1851 goto out;
1852 }
1853 plane = obj_to_plane(obj);
1854
1855 if (plane->crtc)
1856 plane_resp->crtc_id = plane->crtc->base.id;
1857 else
1858 plane_resp->crtc_id = 0;
1859
1860 if (plane->fb)
1861 plane_resp->fb_id = plane->fb->base.id;
1862 else
1863 plane_resp->fb_id = 0;
1864
1865 plane_resp->plane_id = plane->base.id;
1866 plane_resp->possible_crtcs = plane->possible_crtcs;
778ad903 1867 plane_resp->gamma_size = 0;
8cf5c917
JB		 1868
1869 /*
1870 * This ioctl is called twice, once to determine how much space is
1871 * needed, and the 2nd time to fill it.
1872 */
1873 if (plane->format_count &&
1874 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1875 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1876 if (copy_to_user(format_ptr,
1877 plane->format_types,
1878 sizeof(uint32_t) * plane->format_count)) {
1879 ret = -EFAULT;
1880 goto out;
1881 }
1882 }
1883 plane_resp->count_format_types = plane->format_count;
1884
1885out:
84849903 1886 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1887 return ret;
1888}
1889
1890/**
1891 * drm_mode_setplane - set up or tear down an plane
1892 * @dev: DRM device
1893 * @data: ioctl data*
065a50ed 1894 * @file_priv: DRM file info
8cf5c917
JB		 1895 *
1896 * Set plane info, including placement, fb, scaling, and other factors.
1897 * Or pass a NULL fb to disable.
1898 */
1899int drm_mode_setplane(struct drm_device *dev, void *data,
1900 struct drm_file *file_priv)
1901{
1902 struct drm_mode_set_plane *plane_req = data;
1903 struct drm_mode_object *obj;
1904 struct drm_plane *plane;
1905 struct drm_crtc *crtc;
6c2a7532 1906 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
8cf5c917 1907 int ret = 0;
42ef8789 1908 unsigned int fb_width, fb_height;
62443be6 1909 int i;
8cf5c917
JB		 1910
1911 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1912 return -EINVAL;
1913
8cf5c917
JB		 1914 /*
1915 * First, find the plane, crtc, and fb objects. If not available,
1916 * we don't bother to call the driver.
1917 */
1918 obj = drm_mode_object_find(dev, plane_req->plane_id,
1919 DRM_MODE_OBJECT_PLANE);
1920 if (!obj) {
1921 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1922 plane_req->plane_id);
6c2a7532 1923 return -ENOENT;
8cf5c917
JB		 1924 }
1925 plane = obj_to_plane(obj);
1926
1927 /* No fb means shut it down */
1928 if (!plane_req->fb_id) {
6c2a7532
DV		 1929 drm_modeset_lock_all(dev);
1930 old_fb = plane->fb;
8cf5c917 1931 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1932 plane->crtc = NULL;
1933 plane->fb = NULL;
6c2a7532 1934 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1935 goto out;
1936 }
1937
1938 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1939 DRM_MODE_OBJECT_CRTC);
1940 if (!obj) {
1941 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1942 plane_req->crtc_id);
1943 ret = -ENOENT;
1944 goto out;
1945 }
1946 crtc = obj_to_crtc(obj);
1947
786b99ed
DV		 1948 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1949 if (!fb) {
8cf5c917
JB		 1950 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1951 plane_req->fb_id);
1952 ret = -ENOENT;
1953 goto out;
1954 }
8cf5c917 1955
62443be6
VS		 1956 /* Check whether this plane supports the fb pixel format. */
1957 for (i = 0; i < plane->format_count; i++)
1958 if (fb->pixel_format == plane->format_types[i])
1959 break;
1960 if (i == plane->format_count) {
6ba6d03e
VS		 1961 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1962 drm_get_format_name(fb->pixel_format));
62443be6
VS		 1963 ret = -EINVAL;
1964 goto out;
1965 }
1966
42ef8789
VS		 1967 fb_width = fb->width << 16;
1968 fb_height = fb->height << 16;
1969
1970 /* Make sure source coordinates are inside the fb. */
1971 if (plane_req->src_w > fb_width ||
1972 plane_req->src_x > fb_width - plane_req->src_w ||
1973 plane_req->src_h > fb_height ||
1974 plane_req->src_y > fb_height - plane_req->src_h) {
1975 DRM_DEBUG_KMS("Invalid source coordinates "
1976 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1977 plane_req->src_w >> 16,
1978 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1979 plane_req->src_h >> 16,
1980 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1981 plane_req->src_x >> 16,
1982 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1983 plane_req->src_y >> 16,
1984 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1985 ret = -ENOSPC;
1986 goto out;
1987 }
1988
687a0400
VS		 1989 /* Give drivers some help against integer overflows */
1990 if (plane_req->crtc_w > INT_MAX ||
1991 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1992 plane_req->crtc_h > INT_MAX ||
1993 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1994 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1995 plane_req->crtc_w, plane_req->crtc_h,
1996 plane_req->crtc_x, plane_req->crtc_y);
1997 ret = -ERANGE;
1998 goto out;
1999 }
2000
6c2a7532 2001 drm_modeset_lock_all(dev);
8cf5c917
JB		 2002 ret = plane->funcs->update_plane(plane, crtc, fb,
2003 plane_req->crtc_x, plane_req->crtc_y,
2004 plane_req->crtc_w, plane_req->crtc_h,
2005 plane_req->src_x, plane_req->src_y,
2006 plane_req->src_w, plane_req->src_h);
2007 if (!ret) {
6c2a7532 2008 old_fb = plane->fb;
8cf5c917
JB		 2009 plane->crtc = crtc;
2010 plane->fb = fb;
35f8badc 2011 fb = NULL;
8cf5c917 2012 }
6c2a7532 2013 drm_modeset_unlock_all(dev);
8cf5c917
JB		 2014
2015out:
6c2a7532
DV		 2016 if (fb)
2017 drm_framebuffer_unreference(fb);
2018 if (old_fb)
2019 drm_framebuffer_unreference(old_fb);
8cf5c917
JB		 2020
2021 return ret;
2022}
2023
2d13b679
DV		 2024/**
2025 * drm_mode_set_config_internal - helper to call ->set_config
2026 * @set: modeset config to set
2027 *
2028 * This is a little helper to wrap internal calls to the ->set_config driver
2029 * interface. The only thing it adds is correct refcounting dance.
2030 */
2031int drm_mode_set_config_internal(struct drm_mode_set *set)
2032{
2033 struct drm_crtc *crtc = set->crtc;
5cef29aa
DV		 2034 struct drm_framebuffer *fb;
2035 struct drm_crtc *tmp;
b0d12325
DV		 2036 int ret;
2037
5cef29aa
DV		 2038 /*
2039 * NOTE: ->set_config can also disable other crtcs (if we steal all
2040 * connectors from it), hence we need to refcount the fbs across all
2041 * crtcs. Atomic modeset will have saner semantics ...
2042 */
2043 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
2044 tmp->old_fb = tmp->fb;
2045
b0d12325 2046 fb = set->fb;
2d13b679 2047
b0d12325
DV		 2048 ret = crtc->funcs->set_config(set);
2049 if (ret == 0) {
cc85e121
DV		 2050 /* crtc->fb must be updated by ->set_config, enforces this. */
2051 WARN_ON(fb != crtc->fb);
5cef29aa 2052 }
cc85e121 2053
5cef29aa
DV		 2054 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
2055 if (tmp->fb)
2056 drm_framebuffer_reference(tmp->fb);
2057 if (tmp->old_fb)
2058 drm_framebuffer_unreference(tmp->old_fb);
b0d12325
DV		 2059 }
2060
2061 return ret;
2d13b679
DV		 2062}
2063EXPORT_SYMBOL(drm_mode_set_config_internal);
2064
c11e9283
DL		 2065/*
2066 * Checks that the framebuffer is big enough for the CRTC viewport
2067 * (x, y, hdisplay, vdisplay)
2068 */
2069static int drm_crtc_check_viewport(const struct drm_crtc *crtc,
2070 int x, int y,
2071 const struct drm_display_mode *mode,
2072 const struct drm_framebuffer *fb)
2073
2074{
2075 int hdisplay, vdisplay;
2076
2077 hdisplay = mode->hdisplay;
2078 vdisplay = mode->vdisplay;
2079
a0c1bbb0
DL		 2080 if (drm_mode_is_stereo(mode)) {
2081 struct drm_display_mode adjusted = *mode;
2082
2083 drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);
2084 hdisplay = adjusted.crtc_hdisplay;
2085 vdisplay = adjusted.crtc_vdisplay;
2086 }
2087
c11e9283
DL		 2088 if (crtc->invert_dimensions)
2089 swap(hdisplay, vdisplay);
2090
2091 if (hdisplay > fb->width ||
2092 vdisplay > fb->height ||
2093 x > fb->width - hdisplay ||
2094 y > fb->height - vdisplay) {
2095 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2096 fb->width, fb->height, hdisplay, vdisplay, x, y,
2097 crtc->invert_dimensions ? " (inverted)" : "");
2098 return -ENOSPC;
2099 }
2100
2101 return 0;
2102}
2103
f453ba04
DA		 2104/**
2105 * drm_mode_setcrtc - set CRTC configuration
065a50ed
DV		 2106 * @dev: drm device for the ioctl
2107 * @data: data pointer for the ioctl
2108 * @file_priv: drm file for the ioctl call
f453ba04 2109 *
f453ba04
DA		 2110 * Build a new CRTC configuration based on user request.
2111 *
2112 * Called by the user via ioctl.
2113 *
2114 * RETURNS:
2115 * Zero on success, errno on failure.
2116 */
2117int drm_mode_setcrtc(struct drm_device *dev, void *data,
2118 struct drm_file *file_priv)
2119{
2120 struct drm_mode_config *config = &dev->mode_config;
2121 struct drm_mode_crtc *crtc_req = data;
2122 struct drm_mode_object *obj;
6653cc8d 2123 struct drm_crtc *crtc;
f453ba04
DA		 2124 struct drm_connector **connector_set = NULL, *connector;
2125 struct drm_framebuffer *fb = NULL;
2126 struct drm_display_mode *mode = NULL;
2127 struct drm_mode_set set;
2128 uint32_t __user *set_connectors_ptr;
4a1b0714 2129 int ret;
f453ba04
DA		 2130 int i;
2131
fb3b06c8
DA		 2132 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2133 return -EINVAL;
2134
1d97e915
VS		 2135 /* For some reason crtc x/y offsets are signed internally. */
2136 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2137 return -ERANGE;
2138
84849903 2139 drm_modeset_lock_all(dev);
f453ba04
DA		 2140 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2141 DRM_MODE_OBJECT_CRTC);
2142 if (!obj) {
58367ed6 2143 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f27657f2 2144 ret = -ENOENT;
f453ba04
DA		 2145 goto out;
2146 }
2147 crtc = obj_to_crtc(obj);
9440106b 2148 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 2149
2150 if (crtc_req->mode_valid) {
2151 /* If we have a mode we need a framebuffer. */
2152 /* If we pass -1, set the mode with the currently bound fb */
2153 if (crtc_req->fb_id == -1) {
6653cc8d
VS		 2154 if (!crtc->fb) {
2155 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2156 ret = -EINVAL;
2157 goto out;
f453ba04 2158 }
6653cc8d 2159 fb = crtc->fb;
b0d12325
DV		 2160 /* Make refcounting symmetric with the lookup path. */
2161 drm_framebuffer_reference(fb);
f453ba04 2162 } else {
786b99ed
DV		 2163 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2164 if (!fb) {
58367ed6
ZY		 2165 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2166 crtc_req->fb_id);
37c4e705 2167 ret = -ENOENT;
f453ba04
DA		 2168 goto out;
2169 }
f453ba04
DA		 2170 }
2171
2172 mode = drm_mode_create(dev);
ee34ab5b
VS		 2173 if (!mode) {
2174 ret = -ENOMEM;
2175 goto out;
2176 }
2177
90367bf6
VS		 2178 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2179 if (ret) {
2180 DRM_DEBUG_KMS("Invalid mode\n");
2181 goto out;
2182 }
2183
f453ba04 2184 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
5f61bb42 2185
c11e9283
DL		 2186 ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
2187 mode, fb);
2188 if (ret)
5f61bb42 2189 goto out;
c11e9283 2190
f453ba04
DA		 2191 }
2192
2193 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 2194 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 2195 ret = -EINVAL;
2196 goto out;
2197 }
2198
7781de74 2199 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 2200 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 2201 crtc_req->count_connectors);
2202 ret = -EINVAL;
2203 goto out;
2204 }
2205
2206 if (crtc_req->count_connectors > 0) {
2207 u32 out_id;
2208
2209 /* Avoid unbounded kernel memory allocation */
2210 if (crtc_req->count_connectors > config->num_connector) {
2211 ret = -EINVAL;
2212 goto out;
2213 }
2214
2215 connector_set = kmalloc(crtc_req->count_connectors *
2216 sizeof(struct drm_connector *),
2217 GFP_KERNEL);
2218 if (!connector_set) {
2219 ret = -ENOMEM;
2220 goto out;
2221 }
2222
2223 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 2224 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 2225 if (get_user(out_id, &set_connectors_ptr[i])) {
2226 ret = -EFAULT;
2227 goto out;
2228 }
2229
2230 obj = drm_mode_object_find(dev, out_id,
2231 DRM_MODE_OBJECT_CONNECTOR);
2232 if (!obj) {
58367ed6
ZY		 2233 DRM_DEBUG_KMS("Connector id %d unknown\n",
2234 out_id);
f27657f2 2235 ret = -ENOENT;
f453ba04
DA		 2236 goto out;
2237 }
2238 connector = obj_to_connector(obj);
9440106b
JG		 2239 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2240 connector->base.id,
2241 drm_get_connector_name(connector));
f453ba04
DA		 2242
2243 connector_set[i] = connector;
2244 }
2245 }
2246
2247 set.crtc = crtc;
2248 set.x = crtc_req->x;
2249 set.y = crtc_req->y;
2250 set.mode = mode;
2251 set.connectors = connector_set;
2252 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 2253 set.fb = fb;
2d13b679 2254 ret = drm_mode_set_config_internal(&set);
f453ba04
DA		 2255
2256out:
b0d12325
DV		 2257 if (fb)
2258 drm_framebuffer_unreference(fb);
2259
f453ba04 2260 kfree(connector_set);
ee34ab5b 2261 drm_mode_destroy(dev, mode);
84849903 2262 drm_modeset_unlock_all(dev);
f453ba04
DA		 2263 return ret;
2264}
2265
4c813d4d
DA		 2266static int drm_mode_cursor_common(struct drm_device *dev,
2267 struct drm_mode_cursor2 *req,
2268 struct drm_file *file_priv)
f453ba04 2269{
f453ba04
DA		 2270 struct drm_mode_object *obj;
2271 struct drm_crtc *crtc;
2272 int ret = 0;
2273
fb3b06c8
DA		 2274 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2275 return -EINVAL;
2276
7c4eaca4 2277 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
f453ba04 2278 return -EINVAL;
f453ba04 2279
e0c8463a 2280 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 2281 if (!obj) {
58367ed6 2282 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
f27657f2 2283 return -ENOENT;
f453ba04
DA		 2284 }
2285 crtc = obj_to_crtc(obj);
2286
dac35663 2287 mutex_lock(&crtc->mutex);
f453ba04 2288 if (req->flags & DRM_MODE_CURSOR_BO) {
4c813d4d 2289 if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
f453ba04
DA		 2290 ret = -ENXIO;
2291 goto out;
2292 }
2293 /* Turns off the cursor if handle is 0 */
4c813d4d
DA		 2294 if (crtc->funcs->cursor_set2)
2295 ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
2296 req->width, req->height, req->hot_x, req->hot_y);
2297 else
2298 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2299 req->width, req->height);
f453ba04
DA		 2300 }
2301
2302 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2303 if (crtc->funcs->cursor_move) {
2304 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2305 } else {
f453ba04
DA		 2306 ret = -EFAULT;
2307 goto out;
2308 }
2309 }
2310out:
dac35663
DV		 2311 mutex_unlock(&crtc->mutex);
2312
f453ba04 2313 return ret;
4c813d4d
DA		 2314
2315}
2316int drm_mode_cursor_ioctl(struct drm_device *dev,
2317 void *data, struct drm_file *file_priv)
2318{
2319 struct drm_mode_cursor *req = data;
2320 struct drm_mode_cursor2 new_req;
2321
2322 memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
2323 new_req.hot_x = new_req.hot_y = 0;
2324
2325 return drm_mode_cursor_common(dev, &new_req, file_priv);
2326}
2327
2328int drm_mode_cursor2_ioctl(struct drm_device *dev,
2329 void *data, struct drm_file *file_priv)
2330{
2331 struct drm_mode_cursor2 *req = data;
2332 return drm_mode_cursor_common(dev, req, file_priv);
f453ba04
DA		 2333}
2334
308e5bcb
JB		 2335/* Original addfb only supported RGB formats, so figure out which one */
2336uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2337{
2338 uint32_t fmt;
2339
2340 switch (bpp) {
2341 case 8:
d84f031b 2342 fmt = DRM_FORMAT_C8;
308e5bcb
JB		 2343 break;
2344 case 16:
2345 if (depth == 15)
04b3924d 2346 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 2347 else
04b3924d 2348 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 2349 break;
2350 case 24:
04b3924d 2351 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 2352 break;
2353 case 32:
2354 if (depth == 24)
04b3924d 2355 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 2356 else if (depth == 30)
04b3924d 2357 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 2358 else
04b3924d 2359 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 2360 break;
2361 default:
04b3924d
VS		 2362 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2363 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 2364 break;
2365 }
2366
2367 return fmt;
2368}
2369EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2370
f453ba04
DA		 2371/**
2372 * drm_mode_addfb - add an FB to the graphics configuration
065a50ed
DV		 2373 * @dev: drm device for the ioctl
2374 * @data: data pointer for the ioctl
2375 * @file_priv: drm file for the ioctl call
f453ba04 2376 *
f453ba04
DA		 2377 * Add a new FB to the specified CRTC, given a user request.
2378 *
2379 * Called by the user via ioctl.
2380 *
2381 * RETURNS:
2382 * Zero on success, errno on failure.
2383 */
2384int drm_mode_addfb(struct drm_device *dev,
2385 void *data, struct drm_file *file_priv)
2386{
308e5bcb
JB		 2387 struct drm_mode_fb_cmd *or = data;
2388 struct drm_mode_fb_cmd2 r = {};
2389 struct drm_mode_config *config = &dev->mode_config;
2390 struct drm_framebuffer *fb;
2391 int ret = 0;
2392
2393 /* Use new struct with format internally */
2394 r.fb_id = or->fb_id;
2395 r.width = or->width;
2396 r.height = or->height;
2397 r.pitches[0] = or->pitch;
2398 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2399 r.handles[0] = or->handle;
2400
2401 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2402 return -EINVAL;
2403
acb4b992 2404 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2405 return -EINVAL;
acb4b992
JB		 2406
2407 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2408 return -EINVAL;
308e5bcb 2409
308e5bcb
JB		 2410 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2411 if (IS_ERR(fb)) {
1aa1b11c 2412 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2413 return PTR_ERR(fb);
308e5bcb
JB		 2414 }
2415
4b096ac1 2416 mutex_lock(&file_priv->fbs_lock);
308e5bcb
JB		 2417 or->fb_id = fb->base.id;
2418 list_add(&fb->filp_head, &file_priv->fbs);
2419 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2420 mutex_unlock(&file_priv->fbs_lock);
4b096ac1 2421
308e5bcb
JB		 2422 return ret;
2423}
2424
cff91b62 2425static int format_check(const struct drm_mode_fb_cmd2 *r)
935b5977
VS		 2426{
2427 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2428
2429 switch (format) {
2430 case DRM_FORMAT_C8:
2431 case DRM_FORMAT_RGB332:
2432 case DRM_FORMAT_BGR233:
2433 case DRM_FORMAT_XRGB4444:
2434 case DRM_FORMAT_XBGR4444:
2435 case DRM_FORMAT_RGBX4444:
2436 case DRM_FORMAT_BGRX4444:
2437 case DRM_FORMAT_ARGB4444:
2438 case DRM_FORMAT_ABGR4444:
2439 case DRM_FORMAT_RGBA4444:
2440 case DRM_FORMAT_BGRA4444:
2441 case DRM_FORMAT_XRGB1555:
2442 case DRM_FORMAT_XBGR1555:
2443 case DRM_FORMAT_RGBX5551:
2444 case DRM_FORMAT_BGRX5551:
2445 case DRM_FORMAT_ARGB1555:
2446 case DRM_FORMAT_ABGR1555:
2447 case DRM_FORMAT_RGBA5551:
2448 case DRM_FORMAT_BGRA5551:
2449 case DRM_FORMAT_RGB565:
2450 case DRM_FORMAT_BGR565:
2451 case DRM_FORMAT_RGB888:
2452 case DRM_FORMAT_BGR888:
2453 case DRM_FORMAT_XRGB8888:
2454 case DRM_FORMAT_XBGR8888:
2455 case DRM_FORMAT_RGBX8888:
2456 case DRM_FORMAT_BGRX8888:
2457 case DRM_FORMAT_ARGB8888:
2458 case DRM_FORMAT_ABGR8888:
2459 case DRM_FORMAT_RGBA8888:
2460 case DRM_FORMAT_BGRA8888:
2461 case DRM_FORMAT_XRGB2101010:
2462 case DRM_FORMAT_XBGR2101010:
2463 case DRM_FORMAT_RGBX1010102:
2464 case DRM_FORMAT_BGRX1010102:
2465 case DRM_FORMAT_ARGB2101010:
2466 case DRM_FORMAT_ABGR2101010:
2467 case DRM_FORMAT_RGBA1010102:
2468 case DRM_FORMAT_BGRA1010102:
2469 case DRM_FORMAT_YUYV:
2470 case DRM_FORMAT_YVYU:
2471 case DRM_FORMAT_UYVY:
2472 case DRM_FORMAT_VYUY:
2473 case DRM_FORMAT_AYUV:
2474 case DRM_FORMAT_NV12:
2475 case DRM_FORMAT_NV21:
2476 case DRM_FORMAT_NV16:
2477 case DRM_FORMAT_NV61:
ba623f6a
LP		 2478 case DRM_FORMAT_NV24:
2479 case DRM_FORMAT_NV42:
935b5977
VS		 2480 case DRM_FORMAT_YUV410:
2481 case DRM_FORMAT_YVU410:
2482 case DRM_FORMAT_YUV411:
2483 case DRM_FORMAT_YVU411:
2484 case DRM_FORMAT_YUV420:
2485 case DRM_FORMAT_YVU420:
2486 case DRM_FORMAT_YUV422:
2487 case DRM_FORMAT_YVU422:
2488 case DRM_FORMAT_YUV444:
2489 case DRM_FORMAT_YVU444:
2490 return 0;
2491 default:
2492 return -EINVAL;
2493 }
2494}
2495
cff91b62 2496static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
d1b45d5f
VS		 2497{
2498 int ret, hsub, vsub, num_planes, i;
2499
2500 ret = format_check(r);
2501 if (ret) {
6ba6d03e
VS		 2502 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2503 drm_get_format_name(r->pixel_format));
d1b45d5f
VS		 2504 return ret;
2505 }
2506
2507 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2508 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2509 num_planes = drm_format_num_planes(r->pixel_format);
2510
2511 if (r->width == 0 || r->width % hsub) {
1aa1b11c 2512 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
d1b45d5f
VS		 2513 return -EINVAL;
2514 }
2515
2516 if (r->height == 0 || r->height % vsub) {
1aa1b11c 2517 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
d1b45d5f
VS		 2518 return -EINVAL;
2519 }
2520
2521 for (i = 0; i < num_planes; i++) {
2522 unsigned int width = r->width / (i != 0 ? hsub : 1);
b180b5d1
VS		 2523 unsigned int height = r->height / (i != 0 ? vsub : 1);
2524 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
d1b45d5f
VS		 2525
2526 if (!r->handles[i]) {
1aa1b11c 2527 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
d1b45d5f
VS		 2528 return -EINVAL;
2529 }
2530
b180b5d1
VS		 2531 if ((uint64_t) width * cpp > UINT_MAX)
2532 return -ERANGE;
2533
2534 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2535 return -ERANGE;
2536
2537 if (r->pitches[i] < width * cpp) {
1aa1b11c 2538 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
d1b45d5f
VS		 2539 return -EINVAL;
2540 }
2541 }
2542
2543 return 0;
2544}
2545
308e5bcb
JB		 2546/**
2547 * drm_mode_addfb2 - add an FB to the graphics configuration
065a50ed
DV		 2548 * @dev: drm device for the ioctl
2549 * @data: data pointer for the ioctl
2550 * @file_priv: drm file for the ioctl call
308e5bcb 2551 *
308e5bcb
JB		 2552 * Add a new FB to the specified CRTC, given a user request with format.
2553 *
2554 * Called by the user via ioctl.
2555 *
2556 * RETURNS:
2557 * Zero on success, errno on failure.
2558 */
2559int drm_mode_addfb2(struct drm_device *dev,
2560 void *data, struct drm_file *file_priv)
2561{
2562 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2563 struct drm_mode_config *config = &dev->mode_config;
2564 struct drm_framebuffer *fb;
4a1b0714 2565 int ret;
f453ba04 2566
fb3b06c8
DA		 2567 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2568 return -EINVAL;
2569
e3cc3520
VS		 2570 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2571 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2572 return -EINVAL;
2573 }
2574
f453ba04 2575 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1aa1b11c 2576 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
8cf5c917 2577 r->width, config->min_width, config->max_width);
f453ba04
DA		 2578 return -EINVAL;
2579 }
2580 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1aa1b11c 2581 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
8cf5c917 2582 r->height, config->min_height, config->max_height);
f453ba04
DA		 2583 return -EINVAL;
2584 }
2585
d1b45d5f
VS		 2586 ret = framebuffer_check(r);
2587 if (ret)
935b5977 2588 return ret;
935b5977 2589
f453ba04 2590 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2591 if (IS_ERR(fb)) {
1aa1b11c 2592 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2593 return PTR_ERR(fb);
f453ba04
DA		 2594 }
2595
4b096ac1 2596 mutex_lock(&file_priv->fbs_lock);
e0c8463a 2597 r->fb_id = fb->base.id;
f453ba04 2598 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2599 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2600 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2601
4b096ac1 2602
f453ba04
DA		 2603 return ret;
2604}
2605
2606/**
2607 * drm_mode_rmfb - remove an FB from the configuration
065a50ed
DV		 2608 * @dev: drm device for the ioctl
2609 * @data: data pointer for the ioctl
2610 * @file_priv: drm file for the ioctl call
f453ba04 2611 *
f453ba04
DA		 2612 * Remove the FB specified by the user.
2613 *
2614 * Called by the user via ioctl.
2615 *
2616 * RETURNS:
2617 * Zero on success, errno on failure.
2618 */
2619int drm_mode_rmfb(struct drm_device *dev,
2620 void *data, struct drm_file *file_priv)
2621{
f453ba04
DA		 2622 struct drm_framebuffer *fb = NULL;
2623 struct drm_framebuffer *fbl = NULL;
2624 uint32_t *id = data;
f453ba04
DA		 2625 int found = 0;
2626
fb3b06c8
DA		 2627 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2628 return -EINVAL;
2629
4b096ac1 2630 mutex_lock(&file_priv->fbs_lock);
2b677e8c
DV		 2631 mutex_lock(&dev->mode_config.fb_lock);
2632 fb = __drm_framebuffer_lookup(dev, *id);
2633 if (!fb)
2634 goto fail_lookup;
2635
f453ba04
DA		 2636 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2637 if (fb == fbl)
2638 found = 1;
2b677e8c
DV		 2639 if (!found)
2640 goto fail_lookup;
2641
2642 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2643 __drm_framebuffer_unregister(dev, fb);
f453ba04 2644
4b096ac1 2645 list_del_init(&fb->filp_head);
2b677e8c 2646 mutex_unlock(&dev->mode_config.fb_lock);
4b096ac1 2647 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2648
4b096ac1 2649 drm_framebuffer_remove(fb);
4b096ac1 2650
2b677e8c
DV		 2651 return 0;
2652
2653fail_lookup:
2654 mutex_unlock(&dev->mode_config.fb_lock);
2655 mutex_unlock(&file_priv->fbs_lock);
2656
37c4e705 2657 return -ENOENT;
f453ba04
DA		 2658}
2659
2660/**
2661 * drm_mode_getfb - get FB info
065a50ed
DV		 2662 * @dev: drm device for the ioctl
2663 * @data: data pointer for the ioctl
2664 * @file_priv: drm file for the ioctl call
f453ba04 2665 *
f453ba04
DA		 2666 * Lookup the FB given its ID and return info about it.
2667 *
2668 * Called by the user via ioctl.
2669 *
2670 * RETURNS:
2671 * Zero on success, errno on failure.
2672 */
2673int drm_mode_getfb(struct drm_device *dev,
2674 void *data, struct drm_file *file_priv)
2675{
2676 struct drm_mode_fb_cmd *r = data;
f453ba04 2677 struct drm_framebuffer *fb;
58c0dca1 2678 int ret;
f453ba04 2679
fb3b06c8
DA		 2680 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2681 return -EINVAL;
2682
786b99ed 2683 fb = drm_framebuffer_lookup(dev, r->fb_id);
58c0dca1 2684 if (!fb)
37c4e705 2685 return -ENOENT;
f453ba04
DA		 2686
2687 r->height = fb->height;
2688 r->width = fb->width;
2689 r->depth = fb->depth;
2690 r->bpp = fb->bits_per_pixel;
01f2c773 2691 r->pitch = fb->pitches[0];
101b96f3
DH		 2692 if (fb->funcs->create_handle) {
2693 if (file_priv->is_master || capable(CAP_SYS_ADMIN)) {
2694 ret = fb->funcs->create_handle(fb, file_priv,
2695 &r->handle);
2696 } else {
2697 /* GET_FB() is an unprivileged ioctl so we must not
2698 * return a buffer-handle to non-master processes! For
2699 * backwards-compatibility reasons, we cannot make
2700 * GET_FB() privileged, so just return an invalid handle
2701 * for non-masters. */
2702 r->handle = 0;
2703 ret = 0;
2704 }
2705 } else {
af26ef3b 2706 ret = -ENODEV;
101b96f3 2707 }
f453ba04 2708
58c0dca1
DV		 2709 drm_framebuffer_unreference(fb);
2710
f453ba04
DA		 2711 return ret;
2712}
2713
884840aa
JB		 2714int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2715 void *data, struct drm_file *file_priv)
2716{
2717 struct drm_clip_rect __user *clips_ptr;
2718 struct drm_clip_rect *clips = NULL;
2719 struct drm_mode_fb_dirty_cmd *r = data;
884840aa
JB		 2720 struct drm_framebuffer *fb;
2721 unsigned flags;
2722 int num_clips;
4a1b0714 2723 int ret;
884840aa 2724
fb3b06c8
DA		 2725 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2726 return -EINVAL;
2727
786b99ed 2728 fb = drm_framebuffer_lookup(dev, r->fb_id);
4ccf097f 2729 if (!fb)
37c4e705 2730 return -ENOENT;
884840aa
JB		 2731
2732 num_clips = r->num_clips;
81f6c7f8 2733 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2734
2735 if (!num_clips != !clips_ptr) {
2736 ret = -EINVAL;
2737 goto out_err1;
2738 }
2739
2740 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2741
2742 /* If userspace annotates copy, clips must come in pairs */
2743 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2744 ret = -EINVAL;
2745 goto out_err1;
2746 }
2747
2748 if (num_clips && clips_ptr) {
a5cd3351
XW		 2749 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2750 ret = -EINVAL;
2751 goto out_err1;
2752 }
884840aa
JB		 2753 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2754 if (!clips) {
2755 ret = -ENOMEM;
2756 goto out_err1;
2757 }
2758
2759 ret = copy_from_user(clips, clips_ptr,
2760 num_clips * sizeof(*clips));
e902a358
DC		 2761 if (ret) {
2762 ret = -EFAULT;
884840aa 2763 goto out_err2;
e902a358 2764 }
884840aa
JB		 2765 }
2766
2767 if (fb->funcs->dirty) {
4ccf097f 2768 drm_modeset_lock_all(dev);
02b00162
TH		 2769 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2770 clips, num_clips);
4ccf097f 2771 drm_modeset_unlock_all(dev);
884840aa
JB		 2772 } else {
2773 ret = -ENOSYS;
884840aa
JB		 2774 }
2775
2776out_err2:
2777 kfree(clips);
2778out_err1:
4ccf097f
DV		 2779 drm_framebuffer_unreference(fb);
2780
884840aa
JB		 2781 return ret;
2782}
2783
2784
f453ba04
DA		 2785/**
2786 * drm_fb_release - remove and free the FBs on this file
065a50ed 2787 * @priv: drm file for the ioctl
f453ba04 2788 *
f453ba04
DA		 2789 * Destroy all the FBs associated with @filp.
2790 *
2791 * Called by the user via ioctl.
2792 *
2793 * RETURNS:
2794 * Zero on success, errno on failure.
2795 */
ea39f835 2796void drm_fb_release(struct drm_file *priv)
f453ba04 2797{
f453ba04
DA		 2798 struct drm_device *dev = priv->minor->dev;
2799 struct drm_framebuffer *fb, *tfb;
2800
4b096ac1 2801 mutex_lock(&priv->fbs_lock);
f453ba04 2802 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2b677e8c
DV		 2803
2804 mutex_lock(&dev->mode_config.fb_lock);
2805 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2806 __drm_framebuffer_unregister(dev, fb);
2807 mutex_unlock(&dev->mode_config.fb_lock);
2808
4b096ac1 2809 list_del_init(&fb->filp_head);
2b677e8c
DV		 2810
2811 /* This will also drop the fpriv->fbs reference. */
f7eff60e 2812 drm_framebuffer_remove(fb);
f453ba04 2813 }
4b096ac1 2814 mutex_unlock(&priv->fbs_lock);
f453ba04
DA		 2815}
2816
f453ba04
DA		 2817struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2818 const char *name, int num_values)
2819{
2820 struct drm_property *property = NULL;
6bfc56aa 2821 int ret;
f453ba04
DA		 2822
2823 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2824 if (!property)
2825 return NULL;
2826
2827 if (num_values) {
2828 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2829 if (!property->values)
2830 goto fail;
2831 }
2832
6bfc56aa
VS		 2833 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2834 if (ret)
2835 goto fail;
2836
f453ba04
DA		 2837 property->flags = flags;
2838 property->num_values = num_values;
2839 INIT_LIST_HEAD(&property->enum_blob_list);
2840
471dd2ef 2841 if (name) {
f453ba04 2842 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2843 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2844 }
f453ba04
DA		 2845
2846 list_add_tail(&property->head, &dev->mode_config.property_list);
2847 return property;
2848fail:
6bfc56aa 2849 kfree(property->values);
f453ba04
DA		 2850 kfree(property);
2851 return NULL;
2852}
2853EXPORT_SYMBOL(drm_property_create);
2854
4a67d391
SH		 2855struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2856 const char *name,
2857 const struct drm_prop_enum_list *props,
2858 int num_values)
2859{
2860 struct drm_property *property;
2861 int i, ret;
2862
2863 flags |= DRM_MODE_PROP_ENUM;
2864
2865 property = drm_property_create(dev, flags, name, num_values);
2866 if (!property)
2867 return NULL;
2868
2869 for (i = 0; i < num_values; i++) {
2870 ret = drm_property_add_enum(property, i,
2871 props[i].type,
2872 props[i].name);
2873 if (ret) {
2874 drm_property_destroy(dev, property);
2875 return NULL;
2876 }
2877 }
2878
2879 return property;
2880}
2881EXPORT_SYMBOL(drm_property_create_enum);
2882
49e27545
RC		 2883struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2884 int flags, const char *name,
2885 const struct drm_prop_enum_list *props,
2886 int num_values)
2887{
2888 struct drm_property *property;
2889 int i, ret;
2890
2891 flags |= DRM_MODE_PROP_BITMASK;
2892
2893 property = drm_property_create(dev, flags, name, num_values);
2894 if (!property)
2895 return NULL;
2896
2897 for (i = 0; i < num_values; i++) {
2898 ret = drm_property_add_enum(property, i,
2899 props[i].type,
2900 props[i].name);
2901 if (ret) {
2902 drm_property_destroy(dev, property);
2903 return NULL;
2904 }
2905 }
2906
2907 return property;
2908}
2909EXPORT_SYMBOL(drm_property_create_bitmask);
2910
d9bc3c02
SH		 2911struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2912 const char *name,
2913 uint64_t min, uint64_t max)
2914{
2915 struct drm_property *property;
2916
2917 flags |= DRM_MODE_PROP_RANGE;
2918
2919 property = drm_property_create(dev, flags, name, 2);
2920 if (!property)
2921 return NULL;
2922
2923 property->values[0] = min;
2924 property->values[1] = max;
2925
2926 return property;
2927}
2928EXPORT_SYMBOL(drm_property_create_range);
2929
f453ba04
DA		 2930int drm_property_add_enum(struct drm_property *property, int index,
2931 uint64_t value, const char *name)
2932{
2933 struct drm_property_enum *prop_enum;
2934
49e27545
RC		 2935 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2936 return -EINVAL;
2937
2938 /*
2939 * Bitmask enum properties have the additional constraint of values
2940 * from 0 to 63
2941 */
2942 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
f453ba04
DA		 2943 return -EINVAL;
2944
2945 if (!list_empty(&property->enum_blob_list)) {
2946 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2947 if (prop_enum->value == value) {
2948 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2949 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2950 return 0;
2951 }
2952 }
2953 }
2954
2955 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2956 if (!prop_enum)
2957 return -ENOMEM;
2958
2959 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2960 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2961 prop_enum->value = value;
2962
2963 property->values[index] = value;
2964 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2965 return 0;
2966}
2967EXPORT_SYMBOL(drm_property_add_enum);
2968
2969void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2970{
2971 struct drm_property_enum *prop_enum, *pt;
2972
2973 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2974 list_del(&prop_enum->head);
2975 kfree(prop_enum);
2976 }
2977
2978 if (property->num_values)
2979 kfree(property->values);
2980 drm_mode_object_put(dev, &property->base);
2981 list_del(&property->head);
2982 kfree(property);
2983}
2984EXPORT_SYMBOL(drm_property_destroy);
2985
c543188a
PZ		 2986void drm_object_attach_property(struct drm_mode_object *obj,
2987 struct drm_property *property,
2988 uint64_t init_val)
2989{
7f88a9be 2990 int count = obj->properties->count;
c543188a 2991
7f88a9be
PZ		 2992 if (count == DRM_OBJECT_MAX_PROPERTY) {
2993 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2994 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2995 "you see this message on the same object type.\n",
2996 obj->type);
2997 return;
c543188a
PZ		 2998 }
2999
7f88a9be
PZ		 3000 obj->properties->ids[count] = property->base.id;
3001 obj->properties->values[count] = init_val;
3002 obj->properties->count++;
c543188a
PZ		 3003}
3004EXPORT_SYMBOL(drm_object_attach_property);
3005
3006int drm_object_property_set_value(struct drm_mode_object *obj,
3007 struct drm_property *property, uint64_t val)
3008{
3009 int i;
3010
7f88a9be 3011 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 3012 if (obj->properties->ids[i] == property->base.id) {
3013 obj->properties->values[i] = val;
3014 return 0;
3015 }
3016 }
3017
3018 return -EINVAL;
3019}
3020EXPORT_SYMBOL(drm_object_property_set_value);
3021
3022int drm_object_property_get_value(struct drm_mode_object *obj,
3023 struct drm_property *property, uint64_t *val)
3024{
3025 int i;
3026
7f88a9be 3027 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 3028 if (obj->properties->ids[i] == property->base.id) {
3029 *val = obj->properties->values[i];
3030 return 0;
3031 }
3032 }
3033
3034 return -EINVAL;
3035}
3036EXPORT_SYMBOL(drm_object_property_get_value);
3037
f453ba04
DA		 3038int drm_mode_getproperty_ioctl(struct drm_device *dev,
3039 void *data, struct drm_file *file_priv)
3040{
3041 struct drm_mode_object *obj;
3042 struct drm_mode_get_property *out_resp = data;
3043 struct drm_property *property;
3044 int enum_count = 0;
3045 int blob_count = 0;
3046 int value_count = 0;
3047 int ret = 0, i;
3048 int copied;
3049 struct drm_property_enum *prop_enum;
3050 struct drm_mode_property_enum __user *enum_ptr;
3051 struct drm_property_blob *prop_blob;
81f6c7f8 3052 uint32_t __user *blob_id_ptr;
f453ba04
DA		 3053 uint64_t __user *values_ptr;
3054 uint32_t __user *blob_length_ptr;
3055
fb3b06c8
DA		 3056 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3057 return -EINVAL;
3058
84849903 3059 drm_modeset_lock_all(dev);
f453ba04
DA		 3060 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3061 if (!obj) {
f27657f2 3062 ret = -ENOENT;
f453ba04
DA		 3063 goto done;
3064 }
3065 property = obj_to_property(obj);
3066
49e27545 3067 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3068 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3069 enum_count++;
3070 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3071 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3072 blob_count++;
3073 }
3074
3075 value_count = property->num_values;
3076
3077 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3078 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3079 out_resp->flags = property->flags;
3080
3081 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 3082 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3083 for (i = 0; i < value_count; i++) {
3084 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3085 ret = -EFAULT;
3086 goto done;
3087 }
3088 }
3089 }
3090 out_resp->count_values = value_count;
3091
49e27545 3092 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3093 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3094 copied = 0;
81f6c7f8 3095 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 3096 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3097
3098 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3099 ret = -EFAULT;
3100 goto done;
3101 }
3102
3103 if (copy_to_user(&enum_ptr[copied].name,
3104 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3105 ret = -EFAULT;
3106 goto done;
3107 }
3108 copied++;
3109 }
3110 }
3111 out_resp->count_enum_blobs = enum_count;
3112 }
3113
3114 if (property->flags & DRM_MODE_PROP_BLOB) {
3115 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3116 copied = 0;
81f6c7f8
VS		 3117 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3118 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3119
3120 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3121 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3122 ret = -EFAULT;
3123 goto done;
3124 }
3125
3126 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3127 ret = -EFAULT;
3128 goto done;
3129 }
3130
3131 copied++;
3132 }
3133 }
3134 out_resp->count_enum_blobs = blob_count;
3135 }
3136done:
84849903 3137 drm_modeset_unlock_all(dev);
f453ba04
DA		 3138 return ret;
3139}
3140
3141static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3142 void *data)
3143{
3144 struct drm_property_blob *blob;
6bfc56aa 3145 int ret;
f453ba04
DA		 3146
3147 if (!length || !data)
3148 return NULL;
3149
3150 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3151 if (!blob)
3152 return NULL;
3153
6bfc56aa
VS		 3154 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3155 if (ret) {
3156 kfree(blob);
3157 return NULL;
3158 }
3159
f453ba04
DA		 3160 blob->length = length;
3161
3162 memcpy(blob->data, data, length);
3163
f453ba04
DA		 3164 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3165 return blob;
3166}
3167
3168static void drm_property_destroy_blob(struct drm_device *dev,
3169 struct drm_property_blob *blob)
3170{
3171 drm_mode_object_put(dev, &blob->base);
3172 list_del(&blob->head);
3173 kfree(blob);
3174}
3175
3176int drm_mode_getblob_ioctl(struct drm_device *dev,
3177 void *data, struct drm_file *file_priv)
3178{
3179 struct drm_mode_object *obj;
3180 struct drm_mode_get_blob *out_resp = data;
3181 struct drm_property_blob *blob;
3182 int ret = 0;
81f6c7f8 3183 void __user *blob_ptr;
f453ba04 3184
fb3b06c8
DA		 3185 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3186 return -EINVAL;
3187
84849903 3188 drm_modeset_lock_all(dev);
f453ba04
DA		 3189 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3190 if (!obj) {
f27657f2 3191 ret = -ENOENT;
f453ba04
DA		 3192 goto done;
3193 }
3194 blob = obj_to_blob(obj);
3195
3196 if (out_resp->length == blob->length) {
81f6c7f8 3197 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 3198 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3199 ret = -EFAULT;
3200 goto done;
3201 }
3202 }
3203 out_resp->length = blob->length;
3204
3205done:
84849903 3206 drm_modeset_unlock_all(dev);
f453ba04
DA		 3207 return ret;
3208}
3209
3210int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3211 struct edid *edid)
3212{
3213 struct drm_device *dev = connector->dev;
4a1b0714 3214 int ret, size;
f453ba04
DA		 3215
3216 if (connector->edid_blob_ptr)
3217 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3218
3219 /* Delete edid, when there is none. */
3220 if (!edid) {
3221 connector->edid_blob_ptr = NULL;
58495563 3222 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
f453ba04
DA		 3223 return ret;
3224 }
3225
7466f4cc
AJ		 3226 size = EDID_LENGTH * (1 + edid->extensions);
3227 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3228 size, edid);
e655d122
SK		 3229 if (!connector->edid_blob_ptr)
3230 return -EINVAL;
f453ba04 3231
58495563 3232 ret = drm_object_property_set_value(&connector->base,
f453ba04
DA		 3233 dev->mode_config.edid_property,
3234 connector->edid_blob_ptr->base.id);
3235
3236 return ret;
3237}
3238EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3239
26a34815 3240static bool drm_property_change_is_valid(struct drm_property *property,
592c20ee 3241 uint64_t value)
26a34815
PZ		 3242{
3243 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3244 return false;
3245 if (property->flags & DRM_MODE_PROP_RANGE) {
3246 if (value < property->values[0] || value > property->values[1])
3247 return false;
3248 return true;
49e27545
RC		 3249 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3250 int i;
592c20ee 3251 uint64_t valid_mask = 0;
49e27545
RC		 3252 for (i = 0; i < property->num_values; i++)
3253 valid_mask |= (1ULL << property->values[i]);
3254 return !(value & ~valid_mask);
c4a56750
VS		 3255 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3256 /* Only the driver knows */
3257 return true;
26a34815
PZ		 3258 } else {
3259 int i;
3260 for (i = 0; i < property->num_values; i++)
3261 if (property->values[i] == value)
3262 return true;
3263 return false;
3264 }
3265}
3266
f453ba04
DA		 3267int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3268 void *data, struct drm_file *file_priv)
3269{
0057d8dd
PZ		 3270 struct drm_mode_connector_set_property *conn_set_prop = data;
3271 struct drm_mode_obj_set_property obj_set_prop = {
3272 .value = conn_set_prop->value,
3273 .prop_id = conn_set_prop->prop_id,
3274 .obj_id = conn_set_prop->connector_id,
3275 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3276 };
fb3b06c8 3277
0057d8dd
PZ		 3278 /* It does all the locking and checking we need */
3279 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
f453ba04
DA		 3280}
3281
c543188a
PZ		 3282static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3283 struct drm_property *property,
3284 uint64_t value)
3285{
3286 int ret = -EINVAL;
3287 struct drm_connector *connector = obj_to_connector(obj);
3288
3289 /* Do DPMS ourselves */
3290 if (property == connector->dev->mode_config.dpms_property) {
3291 if (connector->funcs->dpms)
3292 (*connector->funcs->dpms)(connector, (int)value);
3293 ret = 0;
3294 } else if (connector->funcs->set_property)
3295 ret = connector->funcs->set_property(connector, property, value);
3296
3297 /* store the property value if successful */
3298 if (!ret)
58495563 3299 drm_object_property_set_value(&connector->base, property, value);
c543188a
PZ		 3300 return ret;
3301}
3302
bffd9de0
PZ		 3303static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3304 struct drm_property *property,
3305 uint64_t value)
3306{
3307 int ret = -EINVAL;
3308 struct drm_crtc *crtc = obj_to_crtc(obj);
3309
3310 if (crtc->funcs->set_property)
3311 ret = crtc->funcs->set_property(crtc, property, value);
3312 if (!ret)
3313 drm_object_property_set_value(obj, property, value);
3314
3315 return ret;
3316}
3317
4d93914a
RC		 3318static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3319 struct drm_property *property,
3320 uint64_t value)
3321{
3322 int ret = -EINVAL;
3323 struct drm_plane *plane = obj_to_plane(obj);
3324
3325 if (plane->funcs->set_property)
3326 ret = plane->funcs->set_property(plane, property, value);
3327 if (!ret)
3328 drm_object_property_set_value(obj, property, value);
3329
3330 return ret;
3331}
3332
c543188a
PZ		 3333int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3334 struct drm_file *file_priv)
3335{
3336 struct drm_mode_obj_get_properties *arg = data;
3337 struct drm_mode_object *obj;
3338 int ret = 0;
3339 int i;
3340 int copied = 0;
3341 int props_count = 0;
3342 uint32_t __user *props_ptr;
3343 uint64_t __user *prop_values_ptr;
3344
3345 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3346 return -EINVAL;
3347
84849903 3348 drm_modeset_lock_all(dev);
c543188a
PZ		 3349
3350 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3351 if (!obj) {
f27657f2 3352 ret = -ENOENT;
c543188a
PZ		 3353 goto out;
3354 }
3355 if (!obj->properties) {
3356 ret = -EINVAL;
3357 goto out;
3358 }
3359
7f88a9be 3360 props_count = obj->properties->count;
c543188a
PZ		 3361
3362 /* This ioctl is called twice, once to determine how much space is
3363 * needed, and the 2nd time to fill it. */
3364 if ((arg->count_props >= props_count) && props_count) {
3365 copied = 0;
3366 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3367 prop_values_ptr = (uint64_t __user *)(unsigned long)
3368 (arg->prop_values_ptr);
3369 for (i = 0; i < props_count; i++) {
3370 if (put_user(obj->properties->ids[i],
3371 props_ptr + copied)) {
3372 ret = -EFAULT;
3373 goto out;
3374 }
3375 if (put_user(obj->properties->values[i],
3376 prop_values_ptr + copied)) {
3377 ret = -EFAULT;
3378 goto out;
3379 }
3380 copied++;
3381 }
3382 }
3383 arg->count_props = props_count;
3384out:
84849903 3385 drm_modeset_unlock_all(dev);
c543188a
PZ		 3386 return ret;
3387}
3388
3389int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3390 struct drm_file *file_priv)
3391{
3392 struct drm_mode_obj_set_property *arg = data;
3393 struct drm_mode_object *arg_obj;
3394 struct drm_mode_object *prop_obj;
3395 struct drm_property *property;
3396 int ret = -EINVAL;
3397 int i;
3398
3399 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3400 return -EINVAL;
3401
84849903 3402 drm_modeset_lock_all(dev);
c543188a
PZ		 3403
3404 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
f27657f2
VS		 3405 if (!arg_obj) {
3406 ret = -ENOENT;
c543188a 3407 goto out;
f27657f2 3408 }
c543188a
PZ		 3409 if (!arg_obj->properties)
3410 goto out;
3411
7f88a9be 3412 for (i = 0; i < arg_obj->properties->count; i++)
c543188a
PZ		 3413 if (arg_obj->properties->ids[i] == arg->prop_id)
3414 break;
3415
7f88a9be 3416 if (i == arg_obj->properties->count)
c543188a
PZ		 3417 goto out;
3418
3419 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3420 DRM_MODE_OBJECT_PROPERTY);
f27657f2
VS		 3421 if (!prop_obj) {
3422 ret = -ENOENT;
c543188a 3423 goto out;
f27657f2 3424 }
c543188a
PZ		 3425 property = obj_to_property(prop_obj);
3426
3427 if (!drm_property_change_is_valid(property, arg->value))
3428 goto out;
3429
3430 switch (arg_obj->type) {
3431 case DRM_MODE_OBJECT_CONNECTOR:
3432 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3433 arg->value);
3434 break;
bffd9de0
PZ		 3435 case DRM_MODE_OBJECT_CRTC:
3436 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3437 break;
4d93914a
RC		 3438 case DRM_MODE_OBJECT_PLANE:
3439 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3440 break;
c543188a
PZ		 3441 }
3442
3443out:
84849903 3444 drm_modeset_unlock_all(dev);
c543188a
PZ		 3445 return ret;
3446}
3447
f453ba04
DA		 3448int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3449 struct drm_encoder *encoder)
3450{
3451 int i;
3452
3453 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3454 if (connector->encoder_ids[i] == 0) {
3455 connector->encoder_ids[i] = encoder->base.id;
3456 return 0;
3457 }
3458 }
3459 return -ENOMEM;
3460}
3461EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3462
3463void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3464 struct drm_encoder *encoder)
3465{
3466 int i;
3467 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3468 if (connector->encoder_ids[i] == encoder->base.id) {
3469 connector->encoder_ids[i] = 0;
3470 if (connector->encoder == encoder)
3471 connector->encoder = NULL;
3472 break;
3473 }
3474 }
3475}
3476EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3477
4cae5b84 3478int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3479 int gamma_size)
3480{
3481 crtc->gamma_size = gamma_size;
3482
3483 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3484 if (!crtc->gamma_store) {
3485 crtc->gamma_size = 0;
4cae5b84 3486 return -ENOMEM;
f453ba04
DA		 3487 }
3488
4cae5b84 3489 return 0;
f453ba04
DA		 3490}
3491EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3492
3493int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3494 void *data, struct drm_file *file_priv)
3495{
3496 struct drm_mode_crtc_lut *crtc_lut = data;
3497 struct drm_mode_object *obj;
3498 struct drm_crtc *crtc;
3499 void *r_base, *g_base, *b_base;
3500 int size;
3501 int ret = 0;
3502
fb3b06c8
DA		 3503 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3504 return -EINVAL;
3505
84849903 3506 drm_modeset_lock_all(dev);
f453ba04
DA		 3507 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3508 if (!obj) {
f27657f2 3509 ret = -ENOENT;
f453ba04
DA		 3510 goto out;
3511 }
3512 crtc = obj_to_crtc(obj);
3513
ebe0f244
LP		 3514 if (crtc->funcs->gamma_set == NULL) {
3515 ret = -ENOSYS;
3516 goto out;
3517 }
3518
f453ba04
DA		 3519 /* memcpy into gamma store */
3520 if (crtc_lut->gamma_size != crtc->gamma_size) {
3521 ret = -EINVAL;
3522 goto out;
3523 }
3524
3525 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3526 r_base = crtc->gamma_store;
3527 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3528 ret = -EFAULT;
3529 goto out;
3530 }
3531
3532 g_base = r_base + size;
3533 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3534 ret = -EFAULT;
3535 goto out;
3536 }
3537
3538 b_base = g_base + size;
3539 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3540 ret = -EFAULT;
3541 goto out;
3542 }
3543
7203425a 3544 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3545
3546out:
84849903 3547 drm_modeset_unlock_all(dev);
f453ba04
DA		 3548 return ret;
3549
3550}
3551
3552int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3553 void *data, struct drm_file *file_priv)
3554{
3555 struct drm_mode_crtc_lut *crtc_lut = data;
3556 struct drm_mode_object *obj;
3557 struct drm_crtc *crtc;
3558 void *r_base, *g_base, *b_base;
3559 int size;
3560 int ret = 0;
3561
fb3b06c8
DA		 3562 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3563 return -EINVAL;
3564
84849903 3565 drm_modeset_lock_all(dev);
f453ba04
DA		 3566 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3567 if (!obj) {
f27657f2 3568 ret = -ENOENT;
f453ba04
DA		 3569 goto out;
3570 }
3571 crtc = obj_to_crtc(obj);
3572
3573 /* memcpy into gamma store */
3574 if (crtc_lut->gamma_size != crtc->gamma_size) {
3575 ret = -EINVAL;
3576 goto out;
3577 }
3578
3579 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3580 r_base = crtc->gamma_store;
3581 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3582 ret = -EFAULT;
3583 goto out;
3584 }
3585
3586 g_base = r_base + size;
3587 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3588 ret = -EFAULT;
3589 goto out;
3590 }
3591
3592 b_base = g_base + size;
3593 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3594 ret = -EFAULT;
3595 goto out;
3596 }
3597out:
84849903 3598 drm_modeset_unlock_all(dev);
f453ba04
DA		 3599 return ret;
3600}
d91d8a3f
KH		 3601
3602int drm_mode_page_flip_ioctl(struct drm_device *dev,
3603 void *data, struct drm_file *file_priv)
3604{
3605 struct drm_mode_crtc_page_flip *page_flip = data;
3606 struct drm_mode_object *obj;
3607 struct drm_crtc *crtc;
b0d12325 3608 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
d91d8a3f
KH		 3609 struct drm_pending_vblank_event *e = NULL;
3610 unsigned long flags;
3611 int ret = -EINVAL;
3612
3613 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3614 page_flip->reserved != 0)
3615 return -EINVAL;
3616
62f2104f
KP		 3617 if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
3618 return -EINVAL;
3619
d91d8a3f
KH		 3620 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3621 if (!obj)
f27657f2 3622 return -ENOENT;
d91d8a3f
KH		 3623 crtc = obj_to_crtc(obj);
3624
b4d5e7d1 3625 mutex_lock(&crtc->mutex);
90c1efdd
CW		 3626 if (crtc->fb == NULL) {
3627 /* The framebuffer is currently unbound, presumably
3628 * due to a hotplug event, that userspace has not
3629 * yet discovered.
3630 */
3631 ret = -EBUSY;
3632 goto out;
3633 }
3634
d91d8a3f
KH		 3635 if (crtc->funcs->page_flip == NULL)
3636 goto out;
3637
786b99ed 3638 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
37c4e705
VS		 3639 if (!fb) {
3640 ret = -ENOENT;
d91d8a3f 3641 goto out;
37c4e705 3642 }
d91d8a3f 3643
c11e9283
DL		 3644 ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
3645 if (ret)
5f61bb42 3646 goto out;
5f61bb42 3647
909d9cda
LP		 3648 if (crtc->fb->pixel_format != fb->pixel_format) {
3649 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3650 ret = -EINVAL;
3651 goto out;
3652 }
3653
d91d8a3f
KH		 3654 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3655 ret = -ENOMEM;
3656 spin_lock_irqsave(&dev->event_lock, flags);
3657 if (file_priv->event_space < sizeof e->event) {
3658 spin_unlock_irqrestore(&dev->event_lock, flags);
3659 goto out;
3660 }
3661 file_priv->event_space -= sizeof e->event;
3662 spin_unlock_irqrestore(&dev->event_lock, flags);
3663
3664 e = kzalloc(sizeof *e, GFP_KERNEL);
3665 if (e == NULL) {
3666 spin_lock_irqsave(&dev->event_lock, flags);
3667 file_priv->event_space += sizeof e->event;
3668 spin_unlock_irqrestore(&dev->event_lock, flags);
3669 goto out;
3670 }
3671
7bd4d7be 3672 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3673 e->event.base.length = sizeof e->event;
3674 e->event.user_data = page_flip->user_data;
3675 e->base.event = &e->event.base;
3676 e->base.file_priv = file_priv;
3677 e->base.destroy =
3678 (void (*) (struct drm_pending_event *)) kfree;
3679 }
3680
b0d12325 3681 old_fb = crtc->fb;
ed8d1975 3682 ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
d91d8a3f 3683 if (ret) {
aef6a7ee
JS		 3684 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3685 spin_lock_irqsave(&dev->event_lock, flags);
3686 file_priv->event_space += sizeof e->event;
3687 spin_unlock_irqrestore(&dev->event_lock, flags);
3688 kfree(e);
3689 }
b0d12325
DV		 3690 /* Keep the old fb, don't unref it. */
3691 old_fb = NULL;
3692 } else {
8cf1e981
TR		 3693 /*
3694 * Warn if the driver hasn't properly updated the crtc->fb
3695 * field to reflect that the new framebuffer is now used.
3696 * Failing to do so will screw with the reference counting
3697 * on framebuffers.
3698 */
3699 WARN_ON(crtc->fb != fb);
b0d12325
DV		 3700 /* Unref only the old framebuffer. */
3701 fb = NULL;
d91d8a3f
KH		 3702 }
3703
3704out:
b0d12325
DV		 3705 if (fb)
3706 drm_framebuffer_unreference(fb);
3707 if (old_fb)
3708 drm_framebuffer_unreference(old_fb);
b4d5e7d1
DV		 3709 mutex_unlock(&crtc->mutex);
3710
d91d8a3f
KH		 3711 return ret;
3712}
eb033556
CW		 3713
3714void drm_mode_config_reset(struct drm_device *dev)
3715{
3716 struct drm_crtc *crtc;
3717 struct drm_encoder *encoder;
3718 struct drm_connector *connector;
3719
3720 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3721 if (crtc->funcs->reset)
3722 crtc->funcs->reset(crtc);
3723
3724 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3725 if (encoder->funcs->reset)
3726 encoder->funcs->reset(encoder);
3727
5e2cb2f6
DV		 3728 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3729 connector->status = connector_status_unknown;
3730
eb033556
CW		 3731 if (connector->funcs->reset)
3732 connector->funcs->reset(connector);
5e2cb2f6 3733 }
eb033556
CW		 3734}
3735EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3736
3737int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3738 void *data, struct drm_file *file_priv)
3739{
3740 struct drm_mode_create_dumb *args = data;
3741
3742 if (!dev->driver->dumb_create)
3743 return -ENOSYS;
3744 return dev->driver->dumb_create(file_priv, dev, args);
3745}
3746
3747int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3748 void *data, struct drm_file *file_priv)
3749{
3750 struct drm_mode_map_dumb *args = data;
3751
3752 /* call driver ioctl to get mmap offset */
3753 if (!dev->driver->dumb_map_offset)
3754 return -ENOSYS;
3755
3756 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3757}
3758
3759int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3760 void *data, struct drm_file *file_priv)
3761{
3762 struct drm_mode_destroy_dumb *args = data;
3763
3764 if (!dev->driver->dumb_destroy)
3765 return -ENOSYS;
3766
3767 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3768}
248dbc23
DA		 3769
3770/*
3771 * Just need to support RGB formats here for compat with code that doesn't
3772 * use pixel formats directly yet.
3773 */
3774void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3775 int *bpp)
3776{
3777 switch (format) {
c51a6bc5 3778 case DRM_FORMAT_C8:
04b3924d
VS		 3779 case DRM_FORMAT_RGB332:
3780 case DRM_FORMAT_BGR233:
248dbc23
DA		 3781 *depth = 8;
3782 *bpp = 8;
3783 break;
04b3924d
VS		 3784 case DRM_FORMAT_XRGB1555:
3785 case DRM_FORMAT_XBGR1555:
3786 case DRM_FORMAT_RGBX5551:
3787 case DRM_FORMAT_BGRX5551:
3788 case DRM_FORMAT_ARGB1555:
3789 case DRM_FORMAT_ABGR1555:
3790 case DRM_FORMAT_RGBA5551:
3791 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3792 *depth = 15;
3793 *bpp = 16;
3794 break;
04b3924d
VS		 3795 case DRM_FORMAT_RGB565:
3796 case DRM_FORMAT_BGR565:
248dbc23
DA		 3797 *depth = 16;
3798 *bpp = 16;
3799 break;
04b3924d
VS		 3800 case DRM_FORMAT_RGB888:
3801 case DRM_FORMAT_BGR888:
3802 *depth = 24;
3803 *bpp = 24;
3804 break;
3805 case DRM_FORMAT_XRGB8888:
3806 case DRM_FORMAT_XBGR8888:
3807 case DRM_FORMAT_RGBX8888:
3808 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3809 *depth = 24;
3810 *bpp = 32;
3811 break;
04b3924d
VS		 3812 case DRM_FORMAT_XRGB2101010:
3813 case DRM_FORMAT_XBGR2101010:
3814 case DRM_FORMAT_RGBX1010102:
3815 case DRM_FORMAT_BGRX1010102:
3816 case DRM_FORMAT_ARGB2101010:
3817 case DRM_FORMAT_ABGR2101010:
3818 case DRM_FORMAT_RGBA1010102:
3819 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3820 *depth = 30;
3821 *bpp = 32;
3822 break;
04b3924d
VS		 3823 case DRM_FORMAT_ARGB8888:
3824 case DRM_FORMAT_ABGR8888:
3825 case DRM_FORMAT_RGBA8888:
3826 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3827 *depth = 32;
3828 *bpp = 32;
3829 break;
3830 default:
3831 DRM_DEBUG_KMS("unsupported pixel format\n");
3832 *depth = 0;
3833 *bpp = 0;
3834 break;
3835 }
3836}
3837EXPORT_SYMBOL(drm_fb_get_bpp_depth);
141670e9
VS		 3838
3839/**
3840 * drm_format_num_planes - get the number of planes for format
3841 * @format: pixel format (DRM_FORMAT_*)
3842 *
3843 * RETURNS:
3844 * The number of planes used by the specified pixel format.
3845 */
3846int drm_format_num_planes(uint32_t format)
3847{
3848 switch (format) {
3849 case DRM_FORMAT_YUV410:
3850 case DRM_FORMAT_YVU410:
3851 case DRM_FORMAT_YUV411:
3852 case DRM_FORMAT_YVU411:
3853 case DRM_FORMAT_YUV420:
3854 case DRM_FORMAT_YVU420:
3855 case DRM_FORMAT_YUV422:
3856 case DRM_FORMAT_YVU422:
3857 case DRM_FORMAT_YUV444:
3858 case DRM_FORMAT_YVU444:
3859 return 3;
3860 case DRM_FORMAT_NV12:
3861 case DRM_FORMAT_NV21:
3862 case DRM_FORMAT_NV16:
3863 case DRM_FORMAT_NV61:
ba623f6a
LP		 3864 case DRM_FORMAT_NV24:
3865 case DRM_FORMAT_NV42:
141670e9
VS		 3866 return 2;
3867 default:
3868 return 1;
3869 }
3870}
3871EXPORT_SYMBOL(drm_format_num_planes);
5a86bd55
VS		 3872
3873/**
3874 * drm_format_plane_cpp - determine the bytes per pixel value
3875 * @format: pixel format (DRM_FORMAT_*)
3876 * @plane: plane index
3877 *
3878 * RETURNS:
3879 * The bytes per pixel value for the specified plane.
3880 */
3881int drm_format_plane_cpp(uint32_t format, int plane)
3882{
3883 unsigned int depth;
3884 int bpp;
3885
3886 if (plane >= drm_format_num_planes(format))
3887 return 0;
3888
3889 switch (format) {
3890 case DRM_FORMAT_YUYV:
3891 case DRM_FORMAT_YVYU:
3892 case DRM_FORMAT_UYVY:
3893 case DRM_FORMAT_VYUY:
3894 return 2;
3895 case DRM_FORMAT_NV12:
3896 case DRM_FORMAT_NV21:
3897 case DRM_FORMAT_NV16:
3898 case DRM_FORMAT_NV61:
ba623f6a
LP		 3899 case DRM_FORMAT_NV24:
3900 case DRM_FORMAT_NV42:
5a86bd55
VS		 3901 return plane ? 2 : 1;
3902 case DRM_FORMAT_YUV410:
3903 case DRM_FORMAT_YVU410:
3904 case DRM_FORMAT_YUV411:
3905 case DRM_FORMAT_YVU411:
3906 case DRM_FORMAT_YUV420:
3907 case DRM_FORMAT_YVU420:
3908 case DRM_FORMAT_YUV422:
3909 case DRM_FORMAT_YVU422:
3910 case DRM_FORMAT_YUV444:
3911 case DRM_FORMAT_YVU444:
3912 return 1;
3913 default:
3914 drm_fb_get_bpp_depth(format, &depth, &bpp);
3915 return bpp >> 3;
3916 }
3917}
3918EXPORT_SYMBOL(drm_format_plane_cpp);
01b68b04
VS		 3919
3920/**
3921 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3922 * @format: pixel format (DRM_FORMAT_*)
3923 *
3924 * RETURNS:
3925 * The horizontal chroma subsampling factor for the
3926 * specified pixel format.
3927 */
3928int drm_format_horz_chroma_subsampling(uint32_t format)
3929{
3930 switch (format) {
3931 case DRM_FORMAT_YUV411:
3932 case DRM_FORMAT_YVU411:
3933 case DRM_FORMAT_YUV410:
3934 case DRM_FORMAT_YVU410:
3935 return 4;
3936 case DRM_FORMAT_YUYV:
3937 case DRM_FORMAT_YVYU:
3938 case DRM_FORMAT_UYVY:
3939 case DRM_FORMAT_VYUY:
3940 case DRM_FORMAT_NV12:
3941 case DRM_FORMAT_NV21:
3942 case DRM_FORMAT_NV16:
3943 case DRM_FORMAT_NV61:
3944 case DRM_FORMAT_YUV422:
3945 case DRM_FORMAT_YVU422:
3946 case DRM_FORMAT_YUV420:
3947 case DRM_FORMAT_YVU420:
3948 return 2;
3949 default:
3950 return 1;
3951 }
3952}
3953EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3954
3955/**
3956 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3957 * @format: pixel format (DRM_FORMAT_*)
3958 *
3959 * RETURNS:
3960 * The vertical chroma subsampling factor for the
3961 * specified pixel format.
3962 */
3963int drm_format_vert_chroma_subsampling(uint32_t format)
3964{
3965 switch (format) {
3966 case DRM_FORMAT_YUV410:
3967 case DRM_FORMAT_YVU410:
3968 return 4;
3969 case DRM_FORMAT_YUV420:
3970 case DRM_FORMAT_YVU420:
3971 case DRM_FORMAT_NV12:
3972 case DRM_FORMAT_NV21:
3973 return 2;
3974 default:
3975 return 1;
3976 }
3977}
3978EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
87d24fc3
LP		 3979
3980/**
3981 * drm_mode_config_init - initialize DRM mode_configuration structure
3982 * @dev: DRM device
3983 *
3984 * Initialize @dev's mode_config structure, used for tracking the graphics
3985 * configuration of @dev.
3986 *
3987 * Since this initializes the modeset locks, no locking is possible. Which is no
3988 * problem, since this should happen single threaded at init time. It is the
3989 * driver's problem to ensure this guarantee.
3990 *
3991 */
3992void drm_mode_config_init(struct drm_device *dev)
3993{
3994 mutex_init(&dev->mode_config.mutex);
3995 mutex_init(&dev->mode_config.idr_mutex);
3996 mutex_init(&dev->mode_config.fb_lock);
3997 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3998 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3999 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3b336ec4 4000 INIT_LIST_HEAD(&dev->mode_config.bridge_list);
87d24fc3
LP		 4001 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
4002 INIT_LIST_HEAD(&dev->mode_config.property_list);
4003 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
4004 INIT_LIST_HEAD(&dev->mode_config.plane_list);
4005 idr_init(&dev->mode_config.crtc_idr);
4006
4007 drm_modeset_lock_all(dev);
4008 drm_mode_create_standard_connector_properties(dev);
4009 drm_modeset_unlock_all(dev);
4010
4011 /* Just to be sure */
4012 dev->mode_config.num_fb = 0;
4013 dev->mode_config.num_connector = 0;
4014 dev->mode_config.num_crtc = 0;
4015 dev->mode_config.num_encoder = 0;
4016}
4017EXPORT_SYMBOL(drm_mode_config_init);
4018
4019/**
4020 * drm_mode_config_cleanup - free up DRM mode_config info
4021 * @dev: DRM device
4022 *
4023 * Free up all the connectors and CRTCs associated with this DRM device, then
4024 * free up the framebuffers and associated buffer objects.
4025 *
4026 * Note that since this /should/ happen single-threaded at driver/device
4027 * teardown time, no locking is required. It's the driver's job to ensure that
4028 * this guarantee actually holds true.
4029 *
4030 * FIXME: cleanup any dangling user buffer objects too
4031 */
4032void drm_mode_config_cleanup(struct drm_device *dev)
4033{
4034 struct drm_connector *connector, *ot;
4035 struct drm_crtc *crtc, *ct;
4036 struct drm_encoder *encoder, *enct;
3b336ec4 4037 struct drm_bridge *bridge, *brt;
87d24fc3
LP		 4038 struct drm_framebuffer *fb, *fbt;
4039 struct drm_property *property, *pt;
4040 struct drm_property_blob *blob, *bt;
4041 struct drm_plane *plane, *plt;
4042
4043 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
4044 head) {
4045 encoder->funcs->destroy(encoder);
4046 }
4047
3b336ec4
SP		 4048 list_for_each_entry_safe(bridge, brt,
4049 &dev->mode_config.bridge_list, head) {
4050 bridge->funcs->destroy(bridge);
4051 }
4052
87d24fc3
LP		 4053 list_for_each_entry_safe(connector, ot,
4054 &dev->mode_config.connector_list, head) {
4055 connector->funcs->destroy(connector);
4056 }
4057
4058 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
4059 head) {
4060 drm_property_destroy(dev, property);
4061 }
4062
4063 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
4064 head) {
4065 drm_property_destroy_blob(dev, blob);
4066 }
4067
4068 /*
4069 * Single-threaded teardown context, so it's not required to grab the
4070 * fb_lock to protect against concurrent fb_list access. Contrary, it
4071 * would actually deadlock with the drm_framebuffer_cleanup function.
4072 *
4073 * Also, if there are any framebuffers left, that's a driver leak now,
4074 * so politely WARN about this.
4075 */
4076 WARN_ON(!list_empty(&dev->mode_config.fb_list));
4077 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
4078 drm_framebuffer_remove(fb);
4079 }
4080
4081 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
4082 head) {
4083 plane->funcs->destroy(plane);
4084 }
4085
4086 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
4087 crtc->funcs->destroy(crtc);
4088 }
4089
4090 idr_destroy(&dev->mode_config.crtc_idr);
4091}
4092EXPORT_SYMBOL(drm_mode_config_cleanup);
Linux kernel - Deliverables
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