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drm: Check the fb size against the adjusted v/hdisplay for stereo modes
[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/**
1306 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
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
a3ff6d56
DL		 1322 /* At most, 1 set bit describing the 3D layout of the mode */
1323 if (hweight32(in->flags & DRM_MODE_FLAG_3D_MASK) > 1)
1324 return -EINVAL;
1325
f453ba04
DA		 1326 out->clock = in->clock;
1327 out->hdisplay = in->hdisplay;
1328 out->hsync_start = in->hsync_start;
1329 out->hsync_end = in->hsync_end;
1330 out->htotal = in->htotal;
1331 out->hskew = in->hskew;
1332 out->vdisplay = in->vdisplay;
1333 out->vsync_start = in->vsync_start;
1334 out->vsync_end = in->vsync_end;
1335 out->vtotal = in->vtotal;
1336 out->vscan = in->vscan;
1337 out->vrefresh = in->vrefresh;
1338 out->flags = in->flags;
1339 out->type = in->type;
1340 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1341 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
90367bf6
VS		 1342
1343 return 0;
f453ba04
DA		 1344}
1345
1346/**
1347 * drm_mode_getresources - get graphics configuration
065a50ed
DV		 1348 * @dev: drm device for the ioctl
1349 * @data: data pointer for the ioctl
1350 * @file_priv: drm file for the ioctl call
f453ba04 1351 *
f453ba04
DA		 1352 * Construct a set of configuration description structures and return
1353 * them to the user, including CRTC, connector and framebuffer configuration.
1354 *
1355 * Called by the user via ioctl.
1356 *
1357 * RETURNS:
1358 * Zero on success, errno on failure.
1359 */
1360int drm_mode_getresources(struct drm_device *dev, void *data,
1361 struct drm_file *file_priv)
1362{
1363 struct drm_mode_card_res *card_res = data;
1364 struct list_head *lh;
1365 struct drm_framebuffer *fb;
1366 struct drm_connector *connector;
1367 struct drm_crtc *crtc;
1368 struct drm_encoder *encoder;
1369 int ret = 0;
1370 int connector_count = 0;
1371 int crtc_count = 0;
1372 int fb_count = 0;
1373 int encoder_count = 0;
1374 int copied = 0, i;
1375 uint32_t __user *fb_id;
1376 uint32_t __user *crtc_id;
1377 uint32_t __user *connector_id;
1378 uint32_t __user *encoder_id;
1379 struct drm_mode_group *mode_group;
1380
fb3b06c8
DA		 1381 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1382 return -EINVAL;
1383
f453ba04 1384
4b096ac1 1385 mutex_lock(&file_priv->fbs_lock);
f453ba04
DA		 1386 /*
1387 * For the non-control nodes we need to limit the list of resources
1388 * by IDs in the group list for this node
1389 */
1390 list_for_each(lh, &file_priv->fbs)
1391 fb_count++;
1392
4b096ac1
DV		 1393 /* handle this in 4 parts */
1394 /* FBs */
1395 if (card_res->count_fbs >= fb_count) {
1396 copied = 0;
1397 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1398 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1399 if (put_user(fb->base.id, fb_id + copied)) {
1400 mutex_unlock(&file_priv->fbs_lock);
1401 return -EFAULT;
1402 }
1403 copied++;
1404 }
1405 }
1406 card_res->count_fbs = fb_count;
1407 mutex_unlock(&file_priv->fbs_lock);
1408
1409 drm_modeset_lock_all(dev);
f453ba04
DA		 1410 mode_group = &file_priv->master->minor->mode_group;
1411 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1412
1413 list_for_each(lh, &dev->mode_config.crtc_list)
1414 crtc_count++;
1415
1416 list_for_each(lh, &dev->mode_config.connector_list)
1417 connector_count++;
1418
1419 list_for_each(lh, &dev->mode_config.encoder_list)
1420 encoder_count++;
1421 } else {
1422
1423 crtc_count = mode_group->num_crtcs;
1424 connector_count = mode_group->num_connectors;
1425 encoder_count = mode_group->num_encoders;
1426 }
1427
1428 card_res->max_height = dev->mode_config.max_height;
1429 card_res->min_height = dev->mode_config.min_height;
1430 card_res->max_width = dev->mode_config.max_width;
1431 card_res->min_width = dev->mode_config.min_width;
1432
f453ba04
DA		 1433 /* CRTCs */
1434 if (card_res->count_crtcs >= crtc_count) {
1435 copied = 0;
1436 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1437 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1438 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1439 head) {
9440106b 1440 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1441 if (put_user(crtc->base.id, crtc_id + copied)) {
1442 ret = -EFAULT;
1443 goto out;
1444 }
1445 copied++;
1446 }
1447 } else {
1448 for (i = 0; i < mode_group->num_crtcs; i++) {
1449 if (put_user(mode_group->id_list[i],
1450 crtc_id + copied)) {
1451 ret = -EFAULT;
1452 goto out;
1453 }
1454 copied++;
1455 }
1456 }
1457 }
1458 card_res->count_crtcs = crtc_count;
1459
1460 /* Encoders */
1461 if (card_res->count_encoders >= encoder_count) {
1462 copied = 0;
1463 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1464 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1465 list_for_each_entry(encoder,
1466 &dev->mode_config.encoder_list,
1467 head) {
9440106b
JG		 1468 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1469 drm_get_encoder_name(encoder));
f453ba04
DA		 1470 if (put_user(encoder->base.id, encoder_id +
1471 copied)) {
1472 ret = -EFAULT;
1473 goto out;
1474 }
1475 copied++;
1476 }
1477 } else {
1478 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1479 if (put_user(mode_group->id_list[i],
1480 encoder_id + copied)) {
1481 ret = -EFAULT;
1482 goto out;
1483 }
1484 copied++;
1485 }
1486
1487 }
1488 }
1489 card_res->count_encoders = encoder_count;
1490
1491 /* Connectors */
1492 if (card_res->count_connectors >= connector_count) {
1493 copied = 0;
1494 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1495 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1496 list_for_each_entry(connector,
1497 &dev->mode_config.connector_list,
1498 head) {
9440106b
JG		 1499 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1500 connector->base.id,
1501 drm_get_connector_name(connector));
f453ba04
DA		 1502 if (put_user(connector->base.id,
1503 connector_id + copied)) {
1504 ret = -EFAULT;
1505 goto out;
1506 }
1507 copied++;
1508 }
1509 } else {
1510 int start = mode_group->num_crtcs +
1511 mode_group->num_encoders;
1512 for (i = start; i < start + mode_group->num_connectors; i++) {
1513 if (put_user(mode_group->id_list[i],
1514 connector_id + copied)) {
1515 ret = -EFAULT;
1516 goto out;
1517 }
1518 copied++;
1519 }
1520 }
1521 }
1522 card_res->count_connectors = connector_count;
1523
9440106b 1524 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1525 card_res->count_connectors, card_res->count_encoders);
1526
1527out:
84849903 1528 drm_modeset_unlock_all(dev);
f453ba04
DA		 1529 return ret;
1530}
1531
1532/**
1533 * drm_mode_getcrtc - get CRTC configuration
065a50ed
DV		 1534 * @dev: drm device for the ioctl
1535 * @data: data pointer for the ioctl
1536 * @file_priv: drm file for the ioctl call
f453ba04 1537 *
f453ba04
DA		 1538 * Construct a CRTC configuration structure to return to the user.
1539 *
1540 * Called by the user via ioctl.
1541 *
1542 * RETURNS:
1543 * Zero on success, errno on failure.
1544 */
1545int drm_mode_getcrtc(struct drm_device *dev,
1546 void *data, struct drm_file *file_priv)
1547{
1548 struct drm_mode_crtc *crtc_resp = data;
1549 struct drm_crtc *crtc;
1550 struct drm_mode_object *obj;
1551 int ret = 0;
1552
fb3b06c8
DA		 1553 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1554 return -EINVAL;
1555
84849903 1556 drm_modeset_lock_all(dev);
f453ba04
DA		 1557
1558 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1559 DRM_MODE_OBJECT_CRTC);
1560 if (!obj) {
1561 ret = -EINVAL;
1562 goto out;
1563 }
1564 crtc = obj_to_crtc(obj);
1565
1566 crtc_resp->x = crtc->x;
1567 crtc_resp->y = crtc->y;
1568 crtc_resp->gamma_size = crtc->gamma_size;
1569 if (crtc->fb)
1570 crtc_resp->fb_id = crtc->fb->base.id;
1571 else
1572 crtc_resp->fb_id = 0;
1573
1574 if (crtc->enabled) {
1575
1576 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1577 crtc_resp->mode_valid = 1;
1578
1579 } else {
1580 crtc_resp->mode_valid = 0;
1581 }
1582
1583out:
84849903 1584 drm_modeset_unlock_all(dev);
f453ba04
DA		 1585 return ret;
1586}
1587
61d8e328
DL		 1588static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode,
1589 const struct drm_file *file_priv)
1590{
1591 /*
1592 * If user-space hasn't configured the driver to expose the stereo 3D
1593 * modes, don't expose them.
1594 */
1595 if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode))
1596 return false;
1597
1598 return true;
1599}
1600
f453ba04
DA		 1601/**
1602 * drm_mode_getconnector - get connector configuration
065a50ed
DV		 1603 * @dev: drm device for the ioctl
1604 * @data: data pointer for the ioctl
1605 * @file_priv: drm file for the ioctl call
f453ba04 1606 *
f453ba04
DA		 1607 * Construct a connector configuration structure to return to the user.
1608 *
1609 * Called by the user via ioctl.
1610 *
1611 * RETURNS:
1612 * Zero on success, errno on failure.
1613 */
1614int drm_mode_getconnector(struct drm_device *dev, void *data,
1615 struct drm_file *file_priv)
1616{
1617 struct drm_mode_get_connector *out_resp = data;
1618 struct drm_mode_object *obj;
1619 struct drm_connector *connector;
1620 struct drm_display_mode *mode;
1621 int mode_count = 0;
1622 int props_count = 0;
1623 int encoders_count = 0;
1624 int ret = 0;
1625 int copied = 0;
1626 int i;
1627 struct drm_mode_modeinfo u_mode;
1628 struct drm_mode_modeinfo __user *mode_ptr;
1629 uint32_t __user *prop_ptr;
1630 uint64_t __user *prop_values;
1631 uint32_t __user *encoder_ptr;
1632
fb3b06c8
DA		 1633 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1634 return -EINVAL;
1635
f453ba04
DA		 1636 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1637
9440106b 1638 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04 1639
7b24056b 1640 mutex_lock(&dev->mode_config.mutex);
f453ba04
DA		 1641
1642 obj = drm_mode_object_find(dev, out_resp->connector_id,
1643 DRM_MODE_OBJECT_CONNECTOR);
1644 if (!obj) {
1645 ret = -EINVAL;
1646 goto out;
1647 }
1648 connector = obj_to_connector(obj);
1649
7f88a9be 1650 props_count = connector->properties.count;
f453ba04
DA		 1651
1652 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1653 if (connector->encoder_ids[i] != 0) {
1654 encoders_count++;
1655 }
1656 }
1657
1658 if (out_resp->count_modes == 0) {
1659 connector->funcs->fill_modes(connector,
1660 dev->mode_config.max_width,
1661 dev->mode_config.max_height);
1662 }
1663
1664 /* delayed so we get modes regardless of pre-fill_modes state */
1665 list_for_each_entry(mode, &connector->modes, head)
61d8e328
DL		 1666 if (drm_mode_expose_to_userspace(mode, file_priv))
1667 mode_count++;
f453ba04
DA		 1668
1669 out_resp->connector_id = connector->base.id;
1670 out_resp->connector_type = connector->connector_type;
1671 out_resp->connector_type_id = connector->connector_type_id;
1672 out_resp->mm_width = connector->display_info.width_mm;
1673 out_resp->mm_height = connector->display_info.height_mm;
1674 out_resp->subpixel = connector->display_info.subpixel_order;
1675 out_resp->connection = connector->status;
1676 if (connector->encoder)
1677 out_resp->encoder_id = connector->encoder->base.id;
1678 else
1679 out_resp->encoder_id = 0;
1680
1681 /*
1682 * This ioctl is called twice, once to determine how much space is
1683 * needed, and the 2nd time to fill it.
1684 */
1685 if ((out_resp->count_modes >= mode_count) && mode_count) {
1686 copied = 0;
81f6c7f8 1687 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04 1688 list_for_each_entry(mode, &connector->modes, head) {
61d8e328
DL		 1689 if (!drm_mode_expose_to_userspace(mode, file_priv))
1690 continue;
1691
f453ba04
DA		 1692 drm_crtc_convert_to_umode(&u_mode, mode);
1693 if (copy_to_user(mode_ptr + copied,
1694 &u_mode, sizeof(u_mode))) {
1695 ret = -EFAULT;
1696 goto out;
1697 }
1698 copied++;
1699 }
1700 }
1701 out_resp->count_modes = mode_count;
1702
1703 if ((out_resp->count_props >= props_count) && props_count) {
1704 copied = 0;
81f6c7f8
VS		 1705 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1706 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
7f88a9be
PZ		 1707 for (i = 0; i < connector->properties.count; i++) {
1708 if (put_user(connector->properties.ids[i],
1709 prop_ptr + copied)) {
1710 ret = -EFAULT;
1711 goto out;
1712 }
f453ba04 1713
7f88a9be
PZ		 1714 if (put_user(connector->properties.values[i],
1715 prop_values + copied)) {
1716 ret = -EFAULT;
1717 goto out;
f453ba04 1718 }
7f88a9be 1719 copied++;
f453ba04
DA		 1720 }
1721 }
1722 out_resp->count_props = props_count;
1723
1724 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1725 copied = 0;
81f6c7f8 1726 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1727 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1728 if (connector->encoder_ids[i] != 0) {
1729 if (put_user(connector->encoder_ids[i],
1730 encoder_ptr + copied)) {
1731 ret = -EFAULT;
1732 goto out;
1733 }
1734 copied++;
1735 }
1736 }
1737 }
1738 out_resp->count_encoders = encoders_count;
1739
1740out:
7b24056b
DV		 1741 mutex_unlock(&dev->mode_config.mutex);
1742
f453ba04
DA		 1743 return ret;
1744}
1745
1746int drm_mode_getencoder(struct drm_device *dev, void *data,
1747 struct drm_file *file_priv)
1748{
1749 struct drm_mode_get_encoder *enc_resp = data;
1750 struct drm_mode_object *obj;
1751 struct drm_encoder *encoder;
1752 int ret = 0;
1753
fb3b06c8
DA		 1754 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1755 return -EINVAL;
1756
84849903 1757 drm_modeset_lock_all(dev);
f453ba04
DA		 1758 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1759 DRM_MODE_OBJECT_ENCODER);
1760 if (!obj) {
1761 ret = -EINVAL;
1762 goto out;
1763 }
1764 encoder = obj_to_encoder(obj);
1765
1766 if (encoder->crtc)
1767 enc_resp->crtc_id = encoder->crtc->base.id;
1768 else
1769 enc_resp->crtc_id = 0;
1770 enc_resp->encoder_type = encoder->encoder_type;
1771 enc_resp->encoder_id = encoder->base.id;
1772 enc_resp->possible_crtcs = encoder->possible_crtcs;
1773 enc_resp->possible_clones = encoder->possible_clones;
1774
1775out:
84849903 1776 drm_modeset_unlock_all(dev);
f453ba04
DA		 1777 return ret;
1778}
1779
8cf5c917
JB		 1780/**
1781 * drm_mode_getplane_res - get plane info
1782 * @dev: DRM device
1783 * @data: ioctl data
1784 * @file_priv: DRM file info
1785 *
1786 * Return an plane count and set of IDs.
1787 */
1788int drm_mode_getplane_res(struct drm_device *dev, void *data,
1789 struct drm_file *file_priv)
1790{
1791 struct drm_mode_get_plane_res *plane_resp = data;
1792 struct drm_mode_config *config;
1793 struct drm_plane *plane;
1794 uint32_t __user *plane_ptr;
1795 int copied = 0, ret = 0;
1796
1797 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1798 return -EINVAL;
1799
84849903 1800 drm_modeset_lock_all(dev);
8cf5c917
JB		 1801 config = &dev->mode_config;
1802
1803 /*
1804 * This ioctl is called twice, once to determine how much space is
1805 * needed, and the 2nd time to fill it.
1806 */
1807 if (config->num_plane &&
1808 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1809 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1810
1811 list_for_each_entry(plane, &config->plane_list, head) {
1812 if (put_user(plane->base.id, plane_ptr + copied)) {
1813 ret = -EFAULT;
1814 goto out;
1815 }
1816 copied++;
1817 }
1818 }
1819 plane_resp->count_planes = config->num_plane;
1820
1821out:
84849903 1822 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1823 return ret;
1824}
1825
1826/**
1827 * drm_mode_getplane - get plane info
1828 * @dev: DRM device
1829 * @data: ioctl data
1830 * @file_priv: DRM file info
1831 *
1832 * Return plane info, including formats supported, gamma size, any
1833 * current fb, etc.
1834 */
1835int drm_mode_getplane(struct drm_device *dev, void *data,
1836 struct drm_file *file_priv)
1837{
1838 struct drm_mode_get_plane *plane_resp = data;
1839 struct drm_mode_object *obj;
1840 struct drm_plane *plane;
1841 uint32_t __user *format_ptr;
1842 int ret = 0;
1843
1844 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1845 return -EINVAL;
1846
84849903 1847 drm_modeset_lock_all(dev);
8cf5c917
JB		 1848 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1849 DRM_MODE_OBJECT_PLANE);
1850 if (!obj) {
1851 ret = -ENOENT;
1852 goto out;
1853 }
1854 plane = obj_to_plane(obj);
1855
1856 if (plane->crtc)
1857 plane_resp->crtc_id = plane->crtc->base.id;
1858 else
1859 plane_resp->crtc_id = 0;
1860
1861 if (plane->fb)
1862 plane_resp->fb_id = plane->fb->base.id;
1863 else
1864 plane_resp->fb_id = 0;
1865
1866 plane_resp->plane_id = plane->base.id;
1867 plane_resp->possible_crtcs = plane->possible_crtcs;
778ad903 1868 plane_resp->gamma_size = 0;
8cf5c917
JB		 1869
1870 /*
1871 * This ioctl is called twice, once to determine how much space is
1872 * needed, and the 2nd time to fill it.
1873 */
1874 if (plane->format_count &&
1875 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1876 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1877 if (copy_to_user(format_ptr,
1878 plane->format_types,
1879 sizeof(uint32_t) * plane->format_count)) {
1880 ret = -EFAULT;
1881 goto out;
1882 }
1883 }
1884 plane_resp->count_format_types = plane->format_count;
1885
1886out:
84849903 1887 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1888 return ret;
1889}
1890
1891/**
1892 * drm_mode_setplane - set up or tear down an plane
1893 * @dev: DRM device
1894 * @data: ioctl data*
065a50ed 1895 * @file_priv: DRM file info
8cf5c917
JB		 1896 *
1897 * Set plane info, including placement, fb, scaling, and other factors.
1898 * Or pass a NULL fb to disable.
1899 */
1900int drm_mode_setplane(struct drm_device *dev, void *data,
1901 struct drm_file *file_priv)
1902{
1903 struct drm_mode_set_plane *plane_req = data;
1904 struct drm_mode_object *obj;
1905 struct drm_plane *plane;
1906 struct drm_crtc *crtc;
6c2a7532 1907 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
8cf5c917 1908 int ret = 0;
42ef8789 1909 unsigned int fb_width, fb_height;
62443be6 1910 int i;
8cf5c917
JB		 1911
1912 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1913 return -EINVAL;
1914
8cf5c917
JB		 1915 /*
1916 * First, find the plane, crtc, and fb objects. If not available,
1917 * we don't bother to call the driver.
1918 */
1919 obj = drm_mode_object_find(dev, plane_req->plane_id,
1920 DRM_MODE_OBJECT_PLANE);
1921 if (!obj) {
1922 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1923 plane_req->plane_id);
6c2a7532 1924 return -ENOENT;
8cf5c917
JB		 1925 }
1926 plane = obj_to_plane(obj);
1927
1928 /* No fb means shut it down */
1929 if (!plane_req->fb_id) {
6c2a7532
DV		 1930 drm_modeset_lock_all(dev);
1931 old_fb = plane->fb;
8cf5c917 1932 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1933 plane->crtc = NULL;
1934 plane->fb = NULL;
6c2a7532 1935 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1936 goto out;
1937 }
1938
1939 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1940 DRM_MODE_OBJECT_CRTC);
1941 if (!obj) {
1942 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1943 plane_req->crtc_id);
1944 ret = -ENOENT;
1945 goto out;
1946 }
1947 crtc = obj_to_crtc(obj);
1948
786b99ed
DV		 1949 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1950 if (!fb) {
8cf5c917
JB		 1951 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1952 plane_req->fb_id);
1953 ret = -ENOENT;
1954 goto out;
1955 }
8cf5c917 1956
62443be6
VS		 1957 /* Check whether this plane supports the fb pixel format. */
1958 for (i = 0; i < plane->format_count; i++)
1959 if (fb->pixel_format == plane->format_types[i])
1960 break;
1961 if (i == plane->format_count) {
6ba6d03e
VS		 1962 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1963 drm_get_format_name(fb->pixel_format));
62443be6
VS		 1964 ret = -EINVAL;
1965 goto out;
1966 }
1967
42ef8789
VS		 1968 fb_width = fb->width << 16;
1969 fb_height = fb->height << 16;
1970
1971 /* Make sure source coordinates are inside the fb. */
1972 if (plane_req->src_w > fb_width ||
1973 plane_req->src_x > fb_width - plane_req->src_w ||
1974 plane_req->src_h > fb_height ||
1975 plane_req->src_y > fb_height - plane_req->src_h) {
1976 DRM_DEBUG_KMS("Invalid source coordinates "
1977 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1978 plane_req->src_w >> 16,
1979 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1980 plane_req->src_h >> 16,
1981 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1982 plane_req->src_x >> 16,
1983 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1984 plane_req->src_y >> 16,
1985 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1986 ret = -ENOSPC;
1987 goto out;
1988 }
1989
687a0400
VS		 1990 /* Give drivers some help against integer overflows */
1991 if (plane_req->crtc_w > INT_MAX ||
1992 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1993 plane_req->crtc_h > INT_MAX ||
1994 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1995 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1996 plane_req->crtc_w, plane_req->crtc_h,
1997 plane_req->crtc_x, plane_req->crtc_y);
1998 ret = -ERANGE;
1999 goto out;
2000 }
2001
6c2a7532 2002 drm_modeset_lock_all(dev);
8cf5c917
JB		 2003 ret = plane->funcs->update_plane(plane, crtc, fb,
2004 plane_req->crtc_x, plane_req->crtc_y,
2005 plane_req->crtc_w, plane_req->crtc_h,
2006 plane_req->src_x, plane_req->src_y,
2007 plane_req->src_w, plane_req->src_h);
2008 if (!ret) {
6c2a7532 2009 old_fb = plane->fb;
8cf5c917
JB		 2010 plane->crtc = crtc;
2011 plane->fb = fb;
35f8badc 2012 fb = NULL;
8cf5c917 2013 }
6c2a7532 2014 drm_modeset_unlock_all(dev);
8cf5c917
JB		 2015
2016out:
6c2a7532
DV		 2017 if (fb)
2018 drm_framebuffer_unreference(fb);
2019 if (old_fb)
2020 drm_framebuffer_unreference(old_fb);
8cf5c917
JB		 2021
2022 return ret;
2023}
2024
2d13b679
DV		 2025/**
2026 * drm_mode_set_config_internal - helper to call ->set_config
2027 * @set: modeset config to set
2028 *
2029 * This is a little helper to wrap internal calls to the ->set_config driver
2030 * interface. The only thing it adds is correct refcounting dance.
2031 */
2032int drm_mode_set_config_internal(struct drm_mode_set *set)
2033{
2034 struct drm_crtc *crtc = set->crtc;
5cef29aa
DV		 2035 struct drm_framebuffer *fb;
2036 struct drm_crtc *tmp;
b0d12325
DV		 2037 int ret;
2038
5cef29aa
DV		 2039 /*
2040 * NOTE: ->set_config can also disable other crtcs (if we steal all
2041 * connectors from it), hence we need to refcount the fbs across all
2042 * crtcs. Atomic modeset will have saner semantics ...
2043 */
2044 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head)
2045 tmp->old_fb = tmp->fb;
2046
b0d12325 2047 fb = set->fb;
2d13b679 2048
b0d12325
DV		 2049 ret = crtc->funcs->set_config(set);
2050 if (ret == 0) {
cc85e121
DV		 2051 /* crtc->fb must be updated by ->set_config, enforces this. */
2052 WARN_ON(fb != crtc->fb);
5cef29aa 2053 }
cc85e121 2054
5cef29aa
DV		 2055 list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
2056 if (tmp->fb)
2057 drm_framebuffer_reference(tmp->fb);
2058 if (tmp->old_fb)
2059 drm_framebuffer_unreference(tmp->old_fb);
b0d12325
DV		 2060 }
2061
2062 return ret;
2d13b679
DV		 2063}
2064EXPORT_SYMBOL(drm_mode_set_config_internal);
2065
c11e9283
DL		 2066/*
2067 * Checks that the framebuffer is big enough for the CRTC viewport
2068 * (x, y, hdisplay, vdisplay)
2069 */
2070static int drm_crtc_check_viewport(const struct drm_crtc *crtc,
2071 int x, int y,
2072 const struct drm_display_mode *mode,
2073 const struct drm_framebuffer *fb)
2074
2075{
2076 int hdisplay, vdisplay;
2077
2078 hdisplay = mode->hdisplay;
2079 vdisplay = mode->vdisplay;
2080
a0c1bbb0
DL		 2081 if (drm_mode_is_stereo(mode)) {
2082 struct drm_display_mode adjusted = *mode;
2083
2084 drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE);
2085 hdisplay = adjusted.crtc_hdisplay;
2086 vdisplay = adjusted.crtc_vdisplay;
2087 }
2088
c11e9283
DL		 2089 if (crtc->invert_dimensions)
2090 swap(hdisplay, vdisplay);
2091
2092 if (hdisplay > fb->width ||
2093 vdisplay > fb->height ||
2094 x > fb->width - hdisplay ||
2095 y > fb->height - vdisplay) {
2096 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2097 fb->width, fb->height, hdisplay, vdisplay, x, y,
2098 crtc->invert_dimensions ? " (inverted)" : "");
2099 return -ENOSPC;
2100 }
2101
2102 return 0;
2103}
2104
f453ba04
DA		 2105/**
2106 * drm_mode_setcrtc - set CRTC configuration
065a50ed
DV		 2107 * @dev: drm device for the ioctl
2108 * @data: data pointer for the ioctl
2109 * @file_priv: drm file for the ioctl call
f453ba04 2110 *
f453ba04
DA		 2111 * Build a new CRTC configuration based on user request.
2112 *
2113 * Called by the user via ioctl.
2114 *
2115 * RETURNS:
2116 * Zero on success, errno on failure.
2117 */
2118int drm_mode_setcrtc(struct drm_device *dev, void *data,
2119 struct drm_file *file_priv)
2120{
2121 struct drm_mode_config *config = &dev->mode_config;
2122 struct drm_mode_crtc *crtc_req = data;
2123 struct drm_mode_object *obj;
6653cc8d 2124 struct drm_crtc *crtc;
f453ba04
DA		 2125 struct drm_connector **connector_set = NULL, *connector;
2126 struct drm_framebuffer *fb = NULL;
2127 struct drm_display_mode *mode = NULL;
2128 struct drm_mode_set set;
2129 uint32_t __user *set_connectors_ptr;
4a1b0714 2130 int ret;
f453ba04
DA		 2131 int i;
2132
fb3b06c8
DA		 2133 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2134 return -EINVAL;
2135
1d97e915
VS		 2136 /* For some reason crtc x/y offsets are signed internally. */
2137 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2138 return -ERANGE;
2139
84849903 2140 drm_modeset_lock_all(dev);
f453ba04
DA		 2141 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2142 DRM_MODE_OBJECT_CRTC);
2143 if (!obj) {
58367ed6 2144 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 2145 ret = -EINVAL;
2146 goto out;
2147 }
2148 crtc = obj_to_crtc(obj);
9440106b 2149 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 2150
2151 if (crtc_req->mode_valid) {
2152 /* If we have a mode we need a framebuffer. */
2153 /* If we pass -1, set the mode with the currently bound fb */
2154 if (crtc_req->fb_id == -1) {
6653cc8d
VS		 2155 if (!crtc->fb) {
2156 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2157 ret = -EINVAL;
2158 goto out;
f453ba04 2159 }
6653cc8d 2160 fb = crtc->fb;
b0d12325
DV		 2161 /* Make refcounting symmetric with the lookup path. */
2162 drm_framebuffer_reference(fb);
f453ba04 2163 } else {
786b99ed
DV		 2164 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2165 if (!fb) {
58367ed6
ZY		 2166 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2167 crtc_req->fb_id);
f453ba04
DA		 2168 ret = -EINVAL;
2169 goto out;
2170 }
f453ba04
DA		 2171 }
2172
2173 mode = drm_mode_create(dev);
ee34ab5b
VS		 2174 if (!mode) {
2175 ret = -ENOMEM;
2176 goto out;
2177 }
2178
90367bf6
VS		 2179 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2180 if (ret) {
2181 DRM_DEBUG_KMS("Invalid mode\n");
2182 goto out;
2183 }
2184
f453ba04 2185 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
5f61bb42 2186
c11e9283
DL		 2187 ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y,
2188 mode, fb);
2189 if (ret)
5f61bb42 2190 goto out;
c11e9283 2191
f453ba04
DA		 2192 }
2193
2194 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 2195 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 2196 ret = -EINVAL;
2197 goto out;
2198 }
2199
7781de74 2200 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 2201 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 2202 crtc_req->count_connectors);
2203 ret = -EINVAL;
2204 goto out;
2205 }
2206
2207 if (crtc_req->count_connectors > 0) {
2208 u32 out_id;
2209
2210 /* Avoid unbounded kernel memory allocation */
2211 if (crtc_req->count_connectors > config->num_connector) {
2212 ret = -EINVAL;
2213 goto out;
2214 }
2215
2216 connector_set = kmalloc(crtc_req->count_connectors *
2217 sizeof(struct drm_connector *),
2218 GFP_KERNEL);
2219 if (!connector_set) {
2220 ret = -ENOMEM;
2221 goto out;
2222 }
2223
2224 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 2225 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 2226 if (get_user(out_id, &set_connectors_ptr[i])) {
2227 ret = -EFAULT;
2228 goto out;
2229 }
2230
2231 obj = drm_mode_object_find(dev, out_id,
2232 DRM_MODE_OBJECT_CONNECTOR);
2233 if (!obj) {
58367ed6
ZY		 2234 DRM_DEBUG_KMS("Connector id %d unknown\n",
2235 out_id);
f453ba04
DA		 2236 ret = -EINVAL;
2237 goto out;
2238 }
2239 connector = obj_to_connector(obj);
9440106b
JG		 2240 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2241 connector->base.id,
2242 drm_get_connector_name(connector));
f453ba04
DA		 2243
2244 connector_set[i] = connector;
2245 }
2246 }
2247
2248 set.crtc = crtc;
2249 set.x = crtc_req->x;
2250 set.y = crtc_req->y;
2251 set.mode = mode;
2252 set.connectors = connector_set;
2253 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 2254 set.fb = fb;
2d13b679 2255 ret = drm_mode_set_config_internal(&set);
f453ba04
DA		 2256
2257out:
b0d12325
DV		 2258 if (fb)
2259 drm_framebuffer_unreference(fb);
2260
f453ba04 2261 kfree(connector_set);
ee34ab5b 2262 drm_mode_destroy(dev, mode);
84849903 2263 drm_modeset_unlock_all(dev);
f453ba04
DA		 2264 return ret;
2265}
2266
4c813d4d
DA		 2267static int drm_mode_cursor_common(struct drm_device *dev,
2268 struct drm_mode_cursor2 *req,
2269 struct drm_file *file_priv)
f453ba04 2270{
f453ba04
DA		 2271 struct drm_mode_object *obj;
2272 struct drm_crtc *crtc;
2273 int ret = 0;
2274
fb3b06c8
DA		 2275 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2276 return -EINVAL;
2277
7c4eaca4 2278 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
f453ba04 2279 return -EINVAL;
f453ba04 2280
e0c8463a 2281 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 2282 if (!obj) {
58367ed6 2283 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
dac35663 2284 return -EINVAL;
f453ba04
DA		 2285 }
2286 crtc = obj_to_crtc(obj);
2287
dac35663 2288 mutex_lock(&crtc->mutex);
f453ba04 2289 if (req->flags & DRM_MODE_CURSOR_BO) {
4c813d4d 2290 if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
f453ba04
DA		 2291 ret = -ENXIO;
2292 goto out;
2293 }
2294 /* Turns off the cursor if handle is 0 */
4c813d4d
DA		 2295 if (crtc->funcs->cursor_set2)
2296 ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle,
2297 req->width, req->height, req->hot_x, req->hot_y);
2298 else
2299 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2300 req->width, req->height);
f453ba04
DA		 2301 }
2302
2303 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2304 if (crtc->funcs->cursor_move) {
2305 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2306 } else {
f453ba04
DA		 2307 ret = -EFAULT;
2308 goto out;
2309 }
2310 }
2311out:
dac35663
DV		 2312 mutex_unlock(&crtc->mutex);
2313
f453ba04 2314 return ret;
4c813d4d
DA		 2315
2316}
2317int drm_mode_cursor_ioctl(struct drm_device *dev,
2318 void *data, struct drm_file *file_priv)
2319{
2320 struct drm_mode_cursor *req = data;
2321 struct drm_mode_cursor2 new_req;
2322
2323 memcpy(&new_req, req, sizeof(struct drm_mode_cursor));
2324 new_req.hot_x = new_req.hot_y = 0;
2325
2326 return drm_mode_cursor_common(dev, &new_req, file_priv);
2327}
2328
2329int drm_mode_cursor2_ioctl(struct drm_device *dev,
2330 void *data, struct drm_file *file_priv)
2331{
2332 struct drm_mode_cursor2 *req = data;
2333 return drm_mode_cursor_common(dev, req, file_priv);
f453ba04
DA		 2334}
2335
308e5bcb
JB		 2336/* Original addfb only supported RGB formats, so figure out which one */
2337uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2338{
2339 uint32_t fmt;
2340
2341 switch (bpp) {
2342 case 8:
d84f031b 2343 fmt = DRM_FORMAT_C8;
308e5bcb
JB		 2344 break;
2345 case 16:
2346 if (depth == 15)
04b3924d 2347 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 2348 else
04b3924d 2349 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 2350 break;
2351 case 24:
04b3924d 2352 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 2353 break;
2354 case 32:
2355 if (depth == 24)
04b3924d 2356 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 2357 else if (depth == 30)
04b3924d 2358 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 2359 else
04b3924d 2360 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 2361 break;
2362 default:
04b3924d
VS		 2363 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2364 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 2365 break;
2366 }
2367
2368 return fmt;
2369}
2370EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2371
f453ba04
DA		 2372/**
2373 * drm_mode_addfb - add an FB to the graphics configuration
065a50ed
DV		 2374 * @dev: drm device for the ioctl
2375 * @data: data pointer for the ioctl
2376 * @file_priv: drm file for the ioctl call
f453ba04 2377 *
f453ba04
DA		 2378 * Add a new FB to the specified CRTC, given a user request.
2379 *
2380 * Called by the user via ioctl.
2381 *
2382 * RETURNS:
2383 * Zero on success, errno on failure.
2384 */
2385int drm_mode_addfb(struct drm_device *dev,
2386 void *data, struct drm_file *file_priv)
2387{
308e5bcb
JB		 2388 struct drm_mode_fb_cmd *or = data;
2389 struct drm_mode_fb_cmd2 r = {};
2390 struct drm_mode_config *config = &dev->mode_config;
2391 struct drm_framebuffer *fb;
2392 int ret = 0;
2393
2394 /* Use new struct with format internally */
2395 r.fb_id = or->fb_id;
2396 r.width = or->width;
2397 r.height = or->height;
2398 r.pitches[0] = or->pitch;
2399 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2400 r.handles[0] = or->handle;
2401
2402 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2403 return -EINVAL;
2404
acb4b992 2405 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2406 return -EINVAL;
acb4b992
JB		 2407
2408 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2409 return -EINVAL;
308e5bcb 2410
308e5bcb
JB		 2411 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2412 if (IS_ERR(fb)) {
1aa1b11c 2413 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2414 return PTR_ERR(fb);
308e5bcb
JB		 2415 }
2416
4b096ac1 2417 mutex_lock(&file_priv->fbs_lock);
308e5bcb
JB		 2418 or->fb_id = fb->base.id;
2419 list_add(&fb->filp_head, &file_priv->fbs);
2420 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2421 mutex_unlock(&file_priv->fbs_lock);
4b096ac1 2422
308e5bcb
JB		 2423 return ret;
2424}
2425
cff91b62 2426static int format_check(const struct drm_mode_fb_cmd2 *r)
935b5977
VS		 2427{
2428 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2429
2430 switch (format) {
2431 case DRM_FORMAT_C8:
2432 case DRM_FORMAT_RGB332:
2433 case DRM_FORMAT_BGR233:
2434 case DRM_FORMAT_XRGB4444:
2435 case DRM_FORMAT_XBGR4444:
2436 case DRM_FORMAT_RGBX4444:
2437 case DRM_FORMAT_BGRX4444:
2438 case DRM_FORMAT_ARGB4444:
2439 case DRM_FORMAT_ABGR4444:
2440 case DRM_FORMAT_RGBA4444:
2441 case DRM_FORMAT_BGRA4444:
2442 case DRM_FORMAT_XRGB1555:
2443 case DRM_FORMAT_XBGR1555:
2444 case DRM_FORMAT_RGBX5551:
2445 case DRM_FORMAT_BGRX5551:
2446 case DRM_FORMAT_ARGB1555:
2447 case DRM_FORMAT_ABGR1555:
2448 case DRM_FORMAT_RGBA5551:
2449 case DRM_FORMAT_BGRA5551:
2450 case DRM_FORMAT_RGB565:
2451 case DRM_FORMAT_BGR565:
2452 case DRM_FORMAT_RGB888:
2453 case DRM_FORMAT_BGR888:
2454 case DRM_FORMAT_XRGB8888:
2455 case DRM_FORMAT_XBGR8888:
2456 case DRM_FORMAT_RGBX8888:
2457 case DRM_FORMAT_BGRX8888:
2458 case DRM_FORMAT_ARGB8888:
2459 case DRM_FORMAT_ABGR8888:
2460 case DRM_FORMAT_RGBA8888:
2461 case DRM_FORMAT_BGRA8888:
2462 case DRM_FORMAT_XRGB2101010:
2463 case DRM_FORMAT_XBGR2101010:
2464 case DRM_FORMAT_RGBX1010102:
2465 case DRM_FORMAT_BGRX1010102:
2466 case DRM_FORMAT_ARGB2101010:
2467 case DRM_FORMAT_ABGR2101010:
2468 case DRM_FORMAT_RGBA1010102:
2469 case DRM_FORMAT_BGRA1010102:
2470 case DRM_FORMAT_YUYV:
2471 case DRM_FORMAT_YVYU:
2472 case DRM_FORMAT_UYVY:
2473 case DRM_FORMAT_VYUY:
2474 case DRM_FORMAT_AYUV:
2475 case DRM_FORMAT_NV12:
2476 case DRM_FORMAT_NV21:
2477 case DRM_FORMAT_NV16:
2478 case DRM_FORMAT_NV61:
ba623f6a
LP		 2479 case DRM_FORMAT_NV24:
2480 case DRM_FORMAT_NV42:
935b5977
VS		 2481 case DRM_FORMAT_YUV410:
2482 case DRM_FORMAT_YVU410:
2483 case DRM_FORMAT_YUV411:
2484 case DRM_FORMAT_YVU411:
2485 case DRM_FORMAT_YUV420:
2486 case DRM_FORMAT_YVU420:
2487 case DRM_FORMAT_YUV422:
2488 case DRM_FORMAT_YVU422:
2489 case DRM_FORMAT_YUV444:
2490 case DRM_FORMAT_YVU444:
2491 return 0;
2492 default:
2493 return -EINVAL;
2494 }
2495}
2496
cff91b62 2497static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
d1b45d5f
VS		 2498{
2499 int ret, hsub, vsub, num_planes, i;
2500
2501 ret = format_check(r);
2502 if (ret) {
6ba6d03e
VS		 2503 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2504 drm_get_format_name(r->pixel_format));
d1b45d5f
VS		 2505 return ret;
2506 }
2507
2508 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2509 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2510 num_planes = drm_format_num_planes(r->pixel_format);
2511
2512 if (r->width == 0 || r->width % hsub) {
1aa1b11c 2513 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
d1b45d5f
VS		 2514 return -EINVAL;
2515 }
2516
2517 if (r->height == 0 || r->height % vsub) {
1aa1b11c 2518 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
d1b45d5f
VS		 2519 return -EINVAL;
2520 }
2521
2522 for (i = 0; i < num_planes; i++) {
2523 unsigned int width = r->width / (i != 0 ? hsub : 1);
b180b5d1
VS		 2524 unsigned int height = r->height / (i != 0 ? vsub : 1);
2525 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
d1b45d5f
VS		 2526
2527 if (!r->handles[i]) {
1aa1b11c 2528 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
d1b45d5f
VS		 2529 return -EINVAL;
2530 }
2531
b180b5d1
VS		 2532 if ((uint64_t) width * cpp > UINT_MAX)
2533 return -ERANGE;
2534
2535 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2536 return -ERANGE;
2537
2538 if (r->pitches[i] < width * cpp) {
1aa1b11c 2539 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
d1b45d5f
VS		 2540 return -EINVAL;
2541 }
2542 }
2543
2544 return 0;
2545}
2546
308e5bcb
JB		 2547/**
2548 * drm_mode_addfb2 - add an FB to the graphics configuration
065a50ed
DV		 2549 * @dev: drm device for the ioctl
2550 * @data: data pointer for the ioctl
2551 * @file_priv: drm file for the ioctl call
308e5bcb 2552 *
308e5bcb
JB		 2553 * Add a new FB to the specified CRTC, given a user request with format.
2554 *
2555 * Called by the user via ioctl.
2556 *
2557 * RETURNS:
2558 * Zero on success, errno on failure.
2559 */
2560int drm_mode_addfb2(struct drm_device *dev,
2561 void *data, struct drm_file *file_priv)
2562{
2563 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2564 struct drm_mode_config *config = &dev->mode_config;
2565 struct drm_framebuffer *fb;
4a1b0714 2566 int ret;
f453ba04 2567
fb3b06c8
DA		 2568 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2569 return -EINVAL;
2570
e3cc3520
VS		 2571 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2572 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2573 return -EINVAL;
2574 }
2575
f453ba04 2576 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1aa1b11c 2577 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
8cf5c917 2578 r->width, config->min_width, config->max_width);
f453ba04
DA		 2579 return -EINVAL;
2580 }
2581 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1aa1b11c 2582 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
8cf5c917 2583 r->height, config->min_height, config->max_height);
f453ba04
DA		 2584 return -EINVAL;
2585 }
2586
d1b45d5f
VS		 2587 ret = framebuffer_check(r);
2588 if (ret)
935b5977 2589 return ret;
935b5977 2590
f453ba04 2591 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2592 if (IS_ERR(fb)) {
1aa1b11c 2593 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2594 return PTR_ERR(fb);
f453ba04
DA		 2595 }
2596
4b096ac1 2597 mutex_lock(&file_priv->fbs_lock);
e0c8463a 2598 r->fb_id = fb->base.id;
f453ba04 2599 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2600 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2601 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2602
4b096ac1 2603
f453ba04
DA		 2604 return ret;
2605}
2606
2607/**
2608 * drm_mode_rmfb - remove an FB from the configuration
065a50ed
DV		 2609 * @dev: drm device for the ioctl
2610 * @data: data pointer for the ioctl
2611 * @file_priv: drm file for the ioctl call
f453ba04 2612 *
f453ba04
DA		 2613 * Remove the FB specified by the user.
2614 *
2615 * Called by the user via ioctl.
2616 *
2617 * RETURNS:
2618 * Zero on success, errno on failure.
2619 */
2620int drm_mode_rmfb(struct drm_device *dev,
2621 void *data, struct drm_file *file_priv)
2622{
f453ba04
DA		 2623 struct drm_framebuffer *fb = NULL;
2624 struct drm_framebuffer *fbl = NULL;
2625 uint32_t *id = data;
f453ba04
DA		 2626 int found = 0;
2627
fb3b06c8
DA		 2628 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2629 return -EINVAL;
2630
4b096ac1 2631 mutex_lock(&file_priv->fbs_lock);
2b677e8c
DV		 2632 mutex_lock(&dev->mode_config.fb_lock);
2633 fb = __drm_framebuffer_lookup(dev, *id);
2634 if (!fb)
2635 goto fail_lookup;
2636
f453ba04
DA		 2637 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2638 if (fb == fbl)
2639 found = 1;
2b677e8c
DV		 2640 if (!found)
2641 goto fail_lookup;
2642
2643 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2644 __drm_framebuffer_unregister(dev, fb);
f453ba04 2645
4b096ac1 2646 list_del_init(&fb->filp_head);
2b677e8c 2647 mutex_unlock(&dev->mode_config.fb_lock);
4b096ac1 2648 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2649
4b096ac1 2650 drm_framebuffer_remove(fb);
4b096ac1 2651
2b677e8c
DV		 2652 return 0;
2653
2654fail_lookup:
2655 mutex_unlock(&dev->mode_config.fb_lock);
2656 mutex_unlock(&file_priv->fbs_lock);
2657
2658 return -EINVAL;
f453ba04
DA		 2659}
2660
2661/**
2662 * drm_mode_getfb - get FB info
065a50ed
DV		 2663 * @dev: drm device for the ioctl
2664 * @data: data pointer for the ioctl
2665 * @file_priv: drm file for the ioctl call
f453ba04 2666 *
f453ba04
DA		 2667 * Lookup the FB given its ID and return info about it.
2668 *
2669 * Called by the user via ioctl.
2670 *
2671 * RETURNS:
2672 * Zero on success, errno on failure.
2673 */
2674int drm_mode_getfb(struct drm_device *dev,
2675 void *data, struct drm_file *file_priv)
2676{
2677 struct drm_mode_fb_cmd *r = data;
f453ba04 2678 struct drm_framebuffer *fb;
58c0dca1 2679 int ret;
f453ba04 2680
fb3b06c8
DA		 2681 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2682 return -EINVAL;
2683
786b99ed 2684 fb = drm_framebuffer_lookup(dev, r->fb_id);
58c0dca1
DV		 2685 if (!fb)
2686 return -EINVAL;
f453ba04
DA		 2687
2688 r->height = fb->height;
2689 r->width = fb->width;
2690 r->depth = fb->depth;
2691 r->bpp = fb->bits_per_pixel;
01f2c773 2692 r->pitch = fb->pitches[0];
101b96f3
DH		 2693 if (fb->funcs->create_handle) {
2694 if (file_priv->is_master || capable(CAP_SYS_ADMIN)) {
2695 ret = fb->funcs->create_handle(fb, file_priv,
2696 &r->handle);
2697 } else {
2698 /* GET_FB() is an unprivileged ioctl so we must not
2699 * return a buffer-handle to non-master processes! For
2700 * backwards-compatibility reasons, we cannot make
2701 * GET_FB() privileged, so just return an invalid handle
2702 * for non-masters. */
2703 r->handle = 0;
2704 ret = 0;
2705 }
2706 } else {
af26ef3b 2707 ret = -ENODEV;
101b96f3 2708 }
f453ba04 2709
58c0dca1
DV		 2710 drm_framebuffer_unreference(fb);
2711
f453ba04
DA		 2712 return ret;
2713}
2714
884840aa
JB		 2715int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2716 void *data, struct drm_file *file_priv)
2717{
2718 struct drm_clip_rect __user *clips_ptr;
2719 struct drm_clip_rect *clips = NULL;
2720 struct drm_mode_fb_dirty_cmd *r = data;
884840aa
JB		 2721 struct drm_framebuffer *fb;
2722 unsigned flags;
2723 int num_clips;
4a1b0714 2724 int ret;
884840aa 2725
fb3b06c8
DA		 2726 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2727 return -EINVAL;
2728
786b99ed 2729 fb = drm_framebuffer_lookup(dev, r->fb_id);
4ccf097f
DV		 2730 if (!fb)
2731 return -EINVAL;
884840aa
JB		 2732
2733 num_clips = r->num_clips;
81f6c7f8 2734 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2735
2736 if (!num_clips != !clips_ptr) {
2737 ret = -EINVAL;
2738 goto out_err1;
2739 }
2740
2741 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2742
2743 /* If userspace annotates copy, clips must come in pairs */
2744 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2745 ret = -EINVAL;
2746 goto out_err1;
2747 }
2748
2749 if (num_clips && clips_ptr) {
a5cd3351
XW		 2750 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2751 ret = -EINVAL;
2752 goto out_err1;
2753 }
884840aa
JB		 2754 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2755 if (!clips) {
2756 ret = -ENOMEM;
2757 goto out_err1;
2758 }
2759
2760 ret = copy_from_user(clips, clips_ptr,
2761 num_clips * sizeof(*clips));
e902a358
DC		 2762 if (ret) {
2763 ret = -EFAULT;
884840aa 2764 goto out_err2;
e902a358 2765 }
884840aa
JB		 2766 }
2767
2768 if (fb->funcs->dirty) {
4ccf097f 2769 drm_modeset_lock_all(dev);
02b00162
TH		 2770 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2771 clips, num_clips);
4ccf097f 2772 drm_modeset_unlock_all(dev);
884840aa
JB		 2773 } else {
2774 ret = -ENOSYS;
884840aa
JB		 2775 }
2776
2777out_err2:
2778 kfree(clips);
2779out_err1:
4ccf097f
DV		 2780 drm_framebuffer_unreference(fb);
2781
884840aa
JB		 2782 return ret;
2783}
2784
2785
f453ba04
DA		 2786/**
2787 * drm_fb_release - remove and free the FBs on this file
065a50ed 2788 * @priv: drm file for the ioctl
f453ba04 2789 *
f453ba04
DA		 2790 * Destroy all the FBs associated with @filp.
2791 *
2792 * Called by the user via ioctl.
2793 *
2794 * RETURNS:
2795 * Zero on success, errno on failure.
2796 */
ea39f835 2797void drm_fb_release(struct drm_file *priv)
f453ba04 2798{
f453ba04
DA		 2799 struct drm_device *dev = priv->minor->dev;
2800 struct drm_framebuffer *fb, *tfb;
2801
4b096ac1 2802 mutex_lock(&priv->fbs_lock);
f453ba04 2803 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2b677e8c
DV		 2804
2805 mutex_lock(&dev->mode_config.fb_lock);
2806 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2807 __drm_framebuffer_unregister(dev, fb);
2808 mutex_unlock(&dev->mode_config.fb_lock);
2809
4b096ac1 2810 list_del_init(&fb->filp_head);
2b677e8c
DV		 2811
2812 /* This will also drop the fpriv->fbs reference. */
f7eff60e 2813 drm_framebuffer_remove(fb);
f453ba04 2814 }
4b096ac1 2815 mutex_unlock(&priv->fbs_lock);
f453ba04
DA		 2816}
2817
f453ba04
DA		 2818struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2819 const char *name, int num_values)
2820{
2821 struct drm_property *property = NULL;
6bfc56aa 2822 int ret;
f453ba04
DA		 2823
2824 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2825 if (!property)
2826 return NULL;
2827
2828 if (num_values) {
2829 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2830 if (!property->values)
2831 goto fail;
2832 }
2833
6bfc56aa
VS		 2834 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2835 if (ret)
2836 goto fail;
2837
f453ba04
DA		 2838 property->flags = flags;
2839 property->num_values = num_values;
2840 INIT_LIST_HEAD(&property->enum_blob_list);
2841
471dd2ef 2842 if (name) {
f453ba04 2843 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2844 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2845 }
f453ba04
DA		 2846
2847 list_add_tail(&property->head, &dev->mode_config.property_list);
2848 return property;
2849fail:
6bfc56aa 2850 kfree(property->values);
f453ba04
DA		 2851 kfree(property);
2852 return NULL;
2853}
2854EXPORT_SYMBOL(drm_property_create);
2855
4a67d391
SH		 2856struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2857 const char *name,
2858 const struct drm_prop_enum_list *props,
2859 int num_values)
2860{
2861 struct drm_property *property;
2862 int i, ret;
2863
2864 flags |= DRM_MODE_PROP_ENUM;
2865
2866 property = drm_property_create(dev, flags, name, num_values);
2867 if (!property)
2868 return NULL;
2869
2870 for (i = 0; i < num_values; i++) {
2871 ret = drm_property_add_enum(property, i,
2872 props[i].type,
2873 props[i].name);
2874 if (ret) {
2875 drm_property_destroy(dev, property);
2876 return NULL;
2877 }
2878 }
2879
2880 return property;
2881}
2882EXPORT_SYMBOL(drm_property_create_enum);
2883
49e27545
RC		 2884struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2885 int flags, const char *name,
2886 const struct drm_prop_enum_list *props,
2887 int num_values)
2888{
2889 struct drm_property *property;
2890 int i, ret;
2891
2892 flags |= DRM_MODE_PROP_BITMASK;
2893
2894 property = drm_property_create(dev, flags, name, num_values);
2895 if (!property)
2896 return NULL;
2897
2898 for (i = 0; i < num_values; i++) {
2899 ret = drm_property_add_enum(property, i,
2900 props[i].type,
2901 props[i].name);
2902 if (ret) {
2903 drm_property_destroy(dev, property);
2904 return NULL;
2905 }
2906 }
2907
2908 return property;
2909}
2910EXPORT_SYMBOL(drm_property_create_bitmask);
2911
d9bc3c02
SH		 2912struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2913 const char *name,
2914 uint64_t min, uint64_t max)
2915{
2916 struct drm_property *property;
2917
2918 flags |= DRM_MODE_PROP_RANGE;
2919
2920 property = drm_property_create(dev, flags, name, 2);
2921 if (!property)
2922 return NULL;
2923
2924 property->values[0] = min;
2925 property->values[1] = max;
2926
2927 return property;
2928}
2929EXPORT_SYMBOL(drm_property_create_range);
2930
f453ba04
DA		 2931int drm_property_add_enum(struct drm_property *property, int index,
2932 uint64_t value, const char *name)
2933{
2934 struct drm_property_enum *prop_enum;
2935
49e27545
RC		 2936 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2937 return -EINVAL;
2938
2939 /*
2940 * Bitmask enum properties have the additional constraint of values
2941 * from 0 to 63
2942 */
2943 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
f453ba04
DA		 2944 return -EINVAL;
2945
2946 if (!list_empty(&property->enum_blob_list)) {
2947 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2948 if (prop_enum->value == value) {
2949 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2950 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2951 return 0;
2952 }
2953 }
2954 }
2955
2956 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2957 if (!prop_enum)
2958 return -ENOMEM;
2959
2960 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2961 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2962 prop_enum->value = value;
2963
2964 property->values[index] = value;
2965 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2966 return 0;
2967}
2968EXPORT_SYMBOL(drm_property_add_enum);
2969
2970void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2971{
2972 struct drm_property_enum *prop_enum, *pt;
2973
2974 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2975 list_del(&prop_enum->head);
2976 kfree(prop_enum);
2977 }
2978
2979 if (property->num_values)
2980 kfree(property->values);
2981 drm_mode_object_put(dev, &property->base);
2982 list_del(&property->head);
2983 kfree(property);
2984}
2985EXPORT_SYMBOL(drm_property_destroy);
2986
c543188a
PZ		 2987void drm_object_attach_property(struct drm_mode_object *obj,
2988 struct drm_property *property,
2989 uint64_t init_val)
2990{
7f88a9be 2991 int count = obj->properties->count;
c543188a 2992
7f88a9be
PZ		 2993 if (count == DRM_OBJECT_MAX_PROPERTY) {
2994 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2995 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2996 "you see this message on the same object type.\n",
2997 obj->type);
2998 return;
c543188a
PZ		 2999 }
3000
7f88a9be
PZ		 3001 obj->properties->ids[count] = property->base.id;
3002 obj->properties->values[count] = init_val;
3003 obj->properties->count++;
c543188a
PZ		 3004}
3005EXPORT_SYMBOL(drm_object_attach_property);
3006
3007int drm_object_property_set_value(struct drm_mode_object *obj,
3008 struct drm_property *property, uint64_t val)
3009{
3010 int i;
3011
7f88a9be 3012 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 3013 if (obj->properties->ids[i] == property->base.id) {
3014 obj->properties->values[i] = val;
3015 return 0;
3016 }
3017 }
3018
3019 return -EINVAL;
3020}
3021EXPORT_SYMBOL(drm_object_property_set_value);
3022
3023int drm_object_property_get_value(struct drm_mode_object *obj,
3024 struct drm_property *property, uint64_t *val)
3025{
3026 int i;
3027
7f88a9be 3028 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 3029 if (obj->properties->ids[i] == property->base.id) {
3030 *val = obj->properties->values[i];
3031 return 0;
3032 }
3033 }
3034
3035 return -EINVAL;
3036}
3037EXPORT_SYMBOL(drm_object_property_get_value);
3038
f453ba04
DA		 3039int drm_mode_getproperty_ioctl(struct drm_device *dev,
3040 void *data, struct drm_file *file_priv)
3041{
3042 struct drm_mode_object *obj;
3043 struct drm_mode_get_property *out_resp = data;
3044 struct drm_property *property;
3045 int enum_count = 0;
3046 int blob_count = 0;
3047 int value_count = 0;
3048 int ret = 0, i;
3049 int copied;
3050 struct drm_property_enum *prop_enum;
3051 struct drm_mode_property_enum __user *enum_ptr;
3052 struct drm_property_blob *prop_blob;
81f6c7f8 3053 uint32_t __user *blob_id_ptr;
f453ba04
DA		 3054 uint64_t __user *values_ptr;
3055 uint32_t __user *blob_length_ptr;
3056
fb3b06c8
DA		 3057 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3058 return -EINVAL;
3059
84849903 3060 drm_modeset_lock_all(dev);
f453ba04
DA		 3061 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3062 if (!obj) {
3063 ret = -EINVAL;
3064 goto done;
3065 }
3066 property = obj_to_property(obj);
3067
49e27545 3068 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3069 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3070 enum_count++;
3071 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3072 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3073 blob_count++;
3074 }
3075
3076 value_count = property->num_values;
3077
3078 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3079 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3080 out_resp->flags = property->flags;
3081
3082 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 3083 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3084 for (i = 0; i < value_count; i++) {
3085 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3086 ret = -EFAULT;
3087 goto done;
3088 }
3089 }
3090 }
3091 out_resp->count_values = value_count;
3092
49e27545 3093 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3094 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3095 copied = 0;
81f6c7f8 3096 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 3097 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3098
3099 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3100 ret = -EFAULT;
3101 goto done;
3102 }
3103
3104 if (copy_to_user(&enum_ptr[copied].name,
3105 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3106 ret = -EFAULT;
3107 goto done;
3108 }
3109 copied++;
3110 }
3111 }
3112 out_resp->count_enum_blobs = enum_count;
3113 }
3114
3115 if (property->flags & DRM_MODE_PROP_BLOB) {
3116 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3117 copied = 0;
81f6c7f8
VS		 3118 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3119 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3120
3121 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3122 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3123 ret = -EFAULT;
3124 goto done;
3125 }
3126
3127 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3128 ret = -EFAULT;
3129 goto done;
3130 }
3131
3132 copied++;
3133 }
3134 }
3135 out_resp->count_enum_blobs = blob_count;
3136 }
3137done:
84849903 3138 drm_modeset_unlock_all(dev);
f453ba04
DA		 3139 return ret;
3140}
3141
3142static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3143 void *data)
3144{
3145 struct drm_property_blob *blob;
6bfc56aa 3146 int ret;
f453ba04
DA		 3147
3148 if (!length || !data)
3149 return NULL;
3150
3151 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3152 if (!blob)
3153 return NULL;
3154
6bfc56aa
VS		 3155 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3156 if (ret) {
3157 kfree(blob);
3158 return NULL;
3159 }
3160
f453ba04
DA		 3161 blob->length = length;
3162
3163 memcpy(blob->data, data, length);
3164
f453ba04
DA		 3165 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3166 return blob;
3167}
3168
3169static void drm_property_destroy_blob(struct drm_device *dev,
3170 struct drm_property_blob *blob)
3171{
3172 drm_mode_object_put(dev, &blob->base);
3173 list_del(&blob->head);
3174 kfree(blob);
3175}
3176
3177int drm_mode_getblob_ioctl(struct drm_device *dev,
3178 void *data, struct drm_file *file_priv)
3179{
3180 struct drm_mode_object *obj;
3181 struct drm_mode_get_blob *out_resp = data;
3182 struct drm_property_blob *blob;
3183 int ret = 0;
81f6c7f8 3184 void __user *blob_ptr;
f453ba04 3185
fb3b06c8
DA		 3186 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3187 return -EINVAL;
3188
84849903 3189 drm_modeset_lock_all(dev);
f453ba04
DA		 3190 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3191 if (!obj) {
3192 ret = -EINVAL;
3193 goto done;
3194 }
3195 blob = obj_to_blob(obj);
3196
3197 if (out_resp->length == blob->length) {
81f6c7f8 3198 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 3199 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3200 ret = -EFAULT;
3201 goto done;
3202 }
3203 }
3204 out_resp->length = blob->length;
3205
3206done:
84849903 3207 drm_modeset_unlock_all(dev);
f453ba04
DA		 3208 return ret;
3209}
3210
3211int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3212 struct edid *edid)
3213{
3214 struct drm_device *dev = connector->dev;
4a1b0714 3215 int ret, size;
f453ba04
DA		 3216
3217 if (connector->edid_blob_ptr)
3218 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3219
3220 /* Delete edid, when there is none. */
3221 if (!edid) {
3222 connector->edid_blob_ptr = NULL;
58495563 3223 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
f453ba04
DA		 3224 return ret;
3225 }
3226
7466f4cc
AJ		 3227 size = EDID_LENGTH * (1 + edid->extensions);
3228 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3229 size, edid);
e655d122
SK		 3230 if (!connector->edid_blob_ptr)
3231 return -EINVAL;
f453ba04 3232
58495563 3233 ret = drm_object_property_set_value(&connector->base,
f453ba04
DA		 3234 dev->mode_config.edid_property,
3235 connector->edid_blob_ptr->base.id);
3236
3237 return ret;
3238}
3239EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3240
26a34815 3241static bool drm_property_change_is_valid(struct drm_property *property,
592c20ee 3242 uint64_t value)
26a34815
PZ		 3243{
3244 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3245 return false;
3246 if (property->flags & DRM_MODE_PROP_RANGE) {
3247 if (value < property->values[0] || value > property->values[1])
3248 return false;
3249 return true;
49e27545
RC		 3250 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3251 int i;
592c20ee 3252 uint64_t valid_mask = 0;
49e27545
RC		 3253 for (i = 0; i < property->num_values; i++)
3254 valid_mask |= (1ULL << property->values[i]);
3255 return !(value & ~valid_mask);
c4a56750
VS		 3256 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3257 /* Only the driver knows */
3258 return true;
26a34815
PZ		 3259 } else {
3260 int i;
3261 for (i = 0; i < property->num_values; i++)
3262 if (property->values[i] == value)
3263 return true;
3264 return false;
3265 }
3266}
3267
f453ba04
DA		 3268int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3269 void *data, struct drm_file *file_priv)
3270{
0057d8dd
PZ		 3271 struct drm_mode_connector_set_property *conn_set_prop = data;
3272 struct drm_mode_obj_set_property obj_set_prop = {
3273 .value = conn_set_prop->value,
3274 .prop_id = conn_set_prop->prop_id,
3275 .obj_id = conn_set_prop->connector_id,
3276 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3277 };
fb3b06c8 3278
0057d8dd
PZ		 3279 /* It does all the locking and checking we need */
3280 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
f453ba04
DA		 3281}
3282
c543188a
PZ		 3283static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3284 struct drm_property *property,
3285 uint64_t value)
3286{
3287 int ret = -EINVAL;
3288 struct drm_connector *connector = obj_to_connector(obj);
3289
3290 /* Do DPMS ourselves */
3291 if (property == connector->dev->mode_config.dpms_property) {
3292 if (connector->funcs->dpms)
3293 (*connector->funcs->dpms)(connector, (int)value);
3294 ret = 0;
3295 } else if (connector->funcs->set_property)
3296 ret = connector->funcs->set_property(connector, property, value);
3297
3298 /* store the property value if successful */
3299 if (!ret)
58495563 3300 drm_object_property_set_value(&connector->base, property, value);
c543188a
PZ		 3301 return ret;
3302}
3303
bffd9de0
PZ		 3304static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3305 struct drm_property *property,
3306 uint64_t value)
3307{
3308 int ret = -EINVAL;
3309 struct drm_crtc *crtc = obj_to_crtc(obj);
3310
3311 if (crtc->funcs->set_property)
3312 ret = crtc->funcs->set_property(crtc, property, value);
3313 if (!ret)
3314 drm_object_property_set_value(obj, property, value);
3315
3316 return ret;
3317}
3318
4d93914a
RC		 3319static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3320 struct drm_property *property,
3321 uint64_t value)
3322{
3323 int ret = -EINVAL;
3324 struct drm_plane *plane = obj_to_plane(obj);
3325
3326 if (plane->funcs->set_property)
3327 ret = plane->funcs->set_property(plane, property, value);
3328 if (!ret)
3329 drm_object_property_set_value(obj, property, value);
3330
3331 return ret;
3332}
3333
c543188a
PZ		 3334int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3335 struct drm_file *file_priv)
3336{
3337 struct drm_mode_obj_get_properties *arg = data;
3338 struct drm_mode_object *obj;
3339 int ret = 0;
3340 int i;
3341 int copied = 0;
3342 int props_count = 0;
3343 uint32_t __user *props_ptr;
3344 uint64_t __user *prop_values_ptr;
3345
3346 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3347 return -EINVAL;
3348
84849903 3349 drm_modeset_lock_all(dev);
c543188a
PZ		 3350
3351 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3352 if (!obj) {
3353 ret = -EINVAL;
3354 goto out;
3355 }
3356 if (!obj->properties) {
3357 ret = -EINVAL;
3358 goto out;
3359 }
3360
7f88a9be 3361 props_count = obj->properties->count;
c543188a
PZ		 3362
3363 /* This ioctl is called twice, once to determine how much space is
3364 * needed, and the 2nd time to fill it. */
3365 if ((arg->count_props >= props_count) && props_count) {
3366 copied = 0;
3367 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3368 prop_values_ptr = (uint64_t __user *)(unsigned long)
3369 (arg->prop_values_ptr);
3370 for (i = 0; i < props_count; i++) {
3371 if (put_user(obj->properties->ids[i],
3372 props_ptr + copied)) {
3373 ret = -EFAULT;
3374 goto out;
3375 }
3376 if (put_user(obj->properties->values[i],
3377 prop_values_ptr + copied)) {
3378 ret = -EFAULT;
3379 goto out;
3380 }
3381 copied++;
3382 }
3383 }
3384 arg->count_props = props_count;
3385out:
84849903 3386 drm_modeset_unlock_all(dev);
c543188a
PZ		 3387 return ret;
3388}
3389
3390int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3391 struct drm_file *file_priv)
3392{
3393 struct drm_mode_obj_set_property *arg = data;
3394 struct drm_mode_object *arg_obj;
3395 struct drm_mode_object *prop_obj;
3396 struct drm_property *property;
3397 int ret = -EINVAL;
3398 int i;
3399
3400 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3401 return -EINVAL;
3402
84849903 3403 drm_modeset_lock_all(dev);
c543188a
PZ		 3404
3405 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3406 if (!arg_obj)
3407 goto out;
3408 if (!arg_obj->properties)
3409 goto out;
3410
7f88a9be 3411 for (i = 0; i < arg_obj->properties->count; i++)
c543188a
PZ		 3412 if (arg_obj->properties->ids[i] == arg->prop_id)
3413 break;
3414
7f88a9be 3415 if (i == arg_obj->properties->count)
c543188a
PZ		 3416 goto out;
3417
3418 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3419 DRM_MODE_OBJECT_PROPERTY);
3420 if (!prop_obj)
3421 goto out;
3422 property = obj_to_property(prop_obj);
3423
3424 if (!drm_property_change_is_valid(property, arg->value))
3425 goto out;
3426
3427 switch (arg_obj->type) {
3428 case DRM_MODE_OBJECT_CONNECTOR:
3429 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3430 arg->value);
3431 break;
bffd9de0
PZ		 3432 case DRM_MODE_OBJECT_CRTC:
3433 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3434 break;
4d93914a
RC		 3435 case DRM_MODE_OBJECT_PLANE:
3436 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3437 break;
c543188a
PZ		 3438 }
3439
3440out:
84849903 3441 drm_modeset_unlock_all(dev);
c543188a
PZ		 3442 return ret;
3443}
3444
f453ba04
DA		 3445int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3446 struct drm_encoder *encoder)
3447{
3448 int i;
3449
3450 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3451 if (connector->encoder_ids[i] == 0) {
3452 connector->encoder_ids[i] = encoder->base.id;
3453 return 0;
3454 }
3455 }
3456 return -ENOMEM;
3457}
3458EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3459
3460void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3461 struct drm_encoder *encoder)
3462{
3463 int i;
3464 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3465 if (connector->encoder_ids[i] == encoder->base.id) {
3466 connector->encoder_ids[i] = 0;
3467 if (connector->encoder == encoder)
3468 connector->encoder = NULL;
3469 break;
3470 }
3471 }
3472}
3473EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3474
4cae5b84 3475int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3476 int gamma_size)
3477{
3478 crtc->gamma_size = gamma_size;
3479
3480 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3481 if (!crtc->gamma_store) {
3482 crtc->gamma_size = 0;
4cae5b84 3483 return -ENOMEM;
f453ba04
DA		 3484 }
3485
4cae5b84 3486 return 0;
f453ba04
DA		 3487}
3488EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3489
3490int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3491 void *data, struct drm_file *file_priv)
3492{
3493 struct drm_mode_crtc_lut *crtc_lut = data;
3494 struct drm_mode_object *obj;
3495 struct drm_crtc *crtc;
3496 void *r_base, *g_base, *b_base;
3497 int size;
3498 int ret = 0;
3499
fb3b06c8
DA		 3500 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3501 return -EINVAL;
3502
84849903 3503 drm_modeset_lock_all(dev);
f453ba04
DA		 3504 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3505 if (!obj) {
3506 ret = -EINVAL;
3507 goto out;
3508 }
3509 crtc = obj_to_crtc(obj);
3510
ebe0f244
LP		 3511 if (crtc->funcs->gamma_set == NULL) {
3512 ret = -ENOSYS;
3513 goto out;
3514 }
3515
f453ba04
DA		 3516 /* memcpy into gamma store */
3517 if (crtc_lut->gamma_size != crtc->gamma_size) {
3518 ret = -EINVAL;
3519 goto out;
3520 }
3521
3522 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3523 r_base = crtc->gamma_store;
3524 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3525 ret = -EFAULT;
3526 goto out;
3527 }
3528
3529 g_base = r_base + size;
3530 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3531 ret = -EFAULT;
3532 goto out;
3533 }
3534
3535 b_base = g_base + size;
3536 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3537 ret = -EFAULT;
3538 goto out;
3539 }
3540
7203425a 3541 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3542
3543out:
84849903 3544 drm_modeset_unlock_all(dev);
f453ba04
DA		 3545 return ret;
3546
3547}
3548
3549int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3550 void *data, struct drm_file *file_priv)
3551{
3552 struct drm_mode_crtc_lut *crtc_lut = data;
3553 struct drm_mode_object *obj;
3554 struct drm_crtc *crtc;
3555 void *r_base, *g_base, *b_base;
3556 int size;
3557 int ret = 0;
3558
fb3b06c8
DA		 3559 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3560 return -EINVAL;
3561
84849903 3562 drm_modeset_lock_all(dev);
f453ba04
DA		 3563 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3564 if (!obj) {
3565 ret = -EINVAL;
3566 goto out;
3567 }
3568 crtc = obj_to_crtc(obj);
3569
3570 /* memcpy into gamma store */
3571 if (crtc_lut->gamma_size != crtc->gamma_size) {
3572 ret = -EINVAL;
3573 goto out;
3574 }
3575
3576 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3577 r_base = crtc->gamma_store;
3578 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3579 ret = -EFAULT;
3580 goto out;
3581 }
3582
3583 g_base = r_base + size;
3584 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3585 ret = -EFAULT;
3586 goto out;
3587 }
3588
3589 b_base = g_base + size;
3590 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3591 ret = -EFAULT;
3592 goto out;
3593 }
3594out:
84849903 3595 drm_modeset_unlock_all(dev);
f453ba04
DA		 3596 return ret;
3597}
d91d8a3f
KH		 3598
3599int drm_mode_page_flip_ioctl(struct drm_device *dev,
3600 void *data, struct drm_file *file_priv)
3601{
3602 struct drm_mode_crtc_page_flip *page_flip = data;
3603 struct drm_mode_object *obj;
3604 struct drm_crtc *crtc;
b0d12325 3605 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
d91d8a3f
KH		 3606 struct drm_pending_vblank_event *e = NULL;
3607 unsigned long flags;
3608 int ret = -EINVAL;
3609
3610 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3611 page_flip->reserved != 0)
3612 return -EINVAL;
3613
62f2104f
KP		 3614 if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip)
3615 return -EINVAL;
3616
d91d8a3f
KH		 3617 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3618 if (!obj)
b4d5e7d1 3619 return -EINVAL;
d91d8a3f
KH		 3620 crtc = obj_to_crtc(obj);
3621
b4d5e7d1 3622 mutex_lock(&crtc->mutex);
90c1efdd
CW		 3623 if (crtc->fb == NULL) {
3624 /* The framebuffer is currently unbound, presumably
3625 * due to a hotplug event, that userspace has not
3626 * yet discovered.
3627 */
3628 ret = -EBUSY;
3629 goto out;
3630 }
3631
d91d8a3f
KH		 3632 if (crtc->funcs->page_flip == NULL)
3633 goto out;
3634
786b99ed
DV		 3635 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3636 if (!fb)
d91d8a3f 3637 goto out;
d91d8a3f 3638
c11e9283
DL		 3639 ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb);
3640 if (ret)
5f61bb42 3641 goto out;
5f61bb42 3642
909d9cda
LP		 3643 if (crtc->fb->pixel_format != fb->pixel_format) {
3644 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3645 ret = -EINVAL;
3646 goto out;
3647 }
3648
d91d8a3f
KH		 3649 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3650 ret = -ENOMEM;
3651 spin_lock_irqsave(&dev->event_lock, flags);
3652 if (file_priv->event_space < sizeof e->event) {
3653 spin_unlock_irqrestore(&dev->event_lock, flags);
3654 goto out;
3655 }
3656 file_priv->event_space -= sizeof e->event;
3657 spin_unlock_irqrestore(&dev->event_lock, flags);
3658
3659 e = kzalloc(sizeof *e, GFP_KERNEL);
3660 if (e == NULL) {
3661 spin_lock_irqsave(&dev->event_lock, flags);
3662 file_priv->event_space += sizeof e->event;
3663 spin_unlock_irqrestore(&dev->event_lock, flags);
3664 goto out;
3665 }
3666
7bd4d7be 3667 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3668 e->event.base.length = sizeof e->event;
3669 e->event.user_data = page_flip->user_data;
3670 e->base.event = &e->event.base;
3671 e->base.file_priv = file_priv;
3672 e->base.destroy =
3673 (void (*) (struct drm_pending_event *)) kfree;
3674 }
3675
b0d12325 3676 old_fb = crtc->fb;
ed8d1975 3677 ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags);
d91d8a3f 3678 if (ret) {
aef6a7ee
JS		 3679 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3680 spin_lock_irqsave(&dev->event_lock, flags);
3681 file_priv->event_space += sizeof e->event;
3682 spin_unlock_irqrestore(&dev->event_lock, flags);
3683 kfree(e);
3684 }
b0d12325
DV		 3685 /* Keep the old fb, don't unref it. */
3686 old_fb = NULL;
3687 } else {
8cf1e981
TR		 3688 /*
3689 * Warn if the driver hasn't properly updated the crtc->fb
3690 * field to reflect that the new framebuffer is now used.
3691 * Failing to do so will screw with the reference counting
3692 * on framebuffers.
3693 */
3694 WARN_ON(crtc->fb != fb);
b0d12325
DV		 3695 /* Unref only the old framebuffer. */
3696 fb = NULL;
d91d8a3f
KH		 3697 }
3698
3699out:
b0d12325
DV		 3700 if (fb)
3701 drm_framebuffer_unreference(fb);
3702 if (old_fb)
3703 drm_framebuffer_unreference(old_fb);
b4d5e7d1
DV		 3704 mutex_unlock(&crtc->mutex);
3705
d91d8a3f
KH		 3706 return ret;
3707}
eb033556
CW		 3708
3709void drm_mode_config_reset(struct drm_device *dev)
3710{
3711 struct drm_crtc *crtc;
3712 struct drm_encoder *encoder;
3713 struct drm_connector *connector;
3714
3715 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3716 if (crtc->funcs->reset)
3717 crtc->funcs->reset(crtc);
3718
3719 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3720 if (encoder->funcs->reset)
3721 encoder->funcs->reset(encoder);
3722
5e2cb2f6
DV		 3723 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3724 connector->status = connector_status_unknown;
3725
eb033556
CW		 3726 if (connector->funcs->reset)
3727 connector->funcs->reset(connector);
5e2cb2f6 3728 }
eb033556
CW		 3729}
3730EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3731
3732int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3733 void *data, struct drm_file *file_priv)
3734{
3735 struct drm_mode_create_dumb *args = data;
3736
3737 if (!dev->driver->dumb_create)
3738 return -ENOSYS;
3739 return dev->driver->dumb_create(file_priv, dev, args);
3740}
3741
3742int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3743 void *data, struct drm_file *file_priv)
3744{
3745 struct drm_mode_map_dumb *args = data;
3746
3747 /* call driver ioctl to get mmap offset */
3748 if (!dev->driver->dumb_map_offset)
3749 return -ENOSYS;
3750
3751 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3752}
3753
3754int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3755 void *data, struct drm_file *file_priv)
3756{
3757 struct drm_mode_destroy_dumb *args = data;
3758
3759 if (!dev->driver->dumb_destroy)
3760 return -ENOSYS;
3761
3762 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3763}
248dbc23
DA		 3764
3765/*
3766 * Just need to support RGB formats here for compat with code that doesn't
3767 * use pixel formats directly yet.
3768 */
3769void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3770 int *bpp)
3771{
3772 switch (format) {
c51a6bc5 3773 case DRM_FORMAT_C8:
04b3924d
VS		 3774 case DRM_FORMAT_RGB332:
3775 case DRM_FORMAT_BGR233:
248dbc23
DA		 3776 *depth = 8;
3777 *bpp = 8;
3778 break;
04b3924d
VS		 3779 case DRM_FORMAT_XRGB1555:
3780 case DRM_FORMAT_XBGR1555:
3781 case DRM_FORMAT_RGBX5551:
3782 case DRM_FORMAT_BGRX5551:
3783 case DRM_FORMAT_ARGB1555:
3784 case DRM_FORMAT_ABGR1555:
3785 case DRM_FORMAT_RGBA5551:
3786 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3787 *depth = 15;
3788 *bpp = 16;
3789 break;
04b3924d
VS		 3790 case DRM_FORMAT_RGB565:
3791 case DRM_FORMAT_BGR565:
248dbc23
DA		 3792 *depth = 16;
3793 *bpp = 16;
3794 break;
04b3924d
VS		 3795 case DRM_FORMAT_RGB888:
3796 case DRM_FORMAT_BGR888:
3797 *depth = 24;
3798 *bpp = 24;
3799 break;
3800 case DRM_FORMAT_XRGB8888:
3801 case DRM_FORMAT_XBGR8888:
3802 case DRM_FORMAT_RGBX8888:
3803 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3804 *depth = 24;
3805 *bpp = 32;
3806 break;
04b3924d
VS		 3807 case DRM_FORMAT_XRGB2101010:
3808 case DRM_FORMAT_XBGR2101010:
3809 case DRM_FORMAT_RGBX1010102:
3810 case DRM_FORMAT_BGRX1010102:
3811 case DRM_FORMAT_ARGB2101010:
3812 case DRM_FORMAT_ABGR2101010:
3813 case DRM_FORMAT_RGBA1010102:
3814 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3815 *depth = 30;
3816 *bpp = 32;
3817 break;
04b3924d
VS		 3818 case DRM_FORMAT_ARGB8888:
3819 case DRM_FORMAT_ABGR8888:
3820 case DRM_FORMAT_RGBA8888:
3821 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3822 *depth = 32;
3823 *bpp = 32;
3824 break;
3825 default:
3826 DRM_DEBUG_KMS("unsupported pixel format\n");
3827 *depth = 0;
3828 *bpp = 0;
3829 break;
3830 }
3831}
3832EXPORT_SYMBOL(drm_fb_get_bpp_depth);
141670e9
VS		 3833
3834/**
3835 * drm_format_num_planes - get the number of planes for format
3836 * @format: pixel format (DRM_FORMAT_*)
3837 *
3838 * RETURNS:
3839 * The number of planes used by the specified pixel format.
3840 */
3841int drm_format_num_planes(uint32_t format)
3842{
3843 switch (format) {
3844 case DRM_FORMAT_YUV410:
3845 case DRM_FORMAT_YVU410:
3846 case DRM_FORMAT_YUV411:
3847 case DRM_FORMAT_YVU411:
3848 case DRM_FORMAT_YUV420:
3849 case DRM_FORMAT_YVU420:
3850 case DRM_FORMAT_YUV422:
3851 case DRM_FORMAT_YVU422:
3852 case DRM_FORMAT_YUV444:
3853 case DRM_FORMAT_YVU444:
3854 return 3;
3855 case DRM_FORMAT_NV12:
3856 case DRM_FORMAT_NV21:
3857 case DRM_FORMAT_NV16:
3858 case DRM_FORMAT_NV61:
ba623f6a
LP		 3859 case DRM_FORMAT_NV24:
3860 case DRM_FORMAT_NV42:
141670e9
VS		 3861 return 2;
3862 default:
3863 return 1;
3864 }
3865}
3866EXPORT_SYMBOL(drm_format_num_planes);
5a86bd55
VS		 3867
3868/**
3869 * drm_format_plane_cpp - determine the bytes per pixel value
3870 * @format: pixel format (DRM_FORMAT_*)
3871 * @plane: plane index
3872 *
3873 * RETURNS:
3874 * The bytes per pixel value for the specified plane.
3875 */
3876int drm_format_plane_cpp(uint32_t format, int plane)
3877{
3878 unsigned int depth;
3879 int bpp;
3880
3881 if (plane >= drm_format_num_planes(format))
3882 return 0;
3883
3884 switch (format) {
3885 case DRM_FORMAT_YUYV:
3886 case DRM_FORMAT_YVYU:
3887 case DRM_FORMAT_UYVY:
3888 case DRM_FORMAT_VYUY:
3889 return 2;
3890 case DRM_FORMAT_NV12:
3891 case DRM_FORMAT_NV21:
3892 case DRM_FORMAT_NV16:
3893 case DRM_FORMAT_NV61:
ba623f6a
LP		 3894 case DRM_FORMAT_NV24:
3895 case DRM_FORMAT_NV42:
5a86bd55
VS		 3896 return plane ? 2 : 1;
3897 case DRM_FORMAT_YUV410:
3898 case DRM_FORMAT_YVU410:
3899 case DRM_FORMAT_YUV411:
3900 case DRM_FORMAT_YVU411:
3901 case DRM_FORMAT_YUV420:
3902 case DRM_FORMAT_YVU420:
3903 case DRM_FORMAT_YUV422:
3904 case DRM_FORMAT_YVU422:
3905 case DRM_FORMAT_YUV444:
3906 case DRM_FORMAT_YVU444:
3907 return 1;
3908 default:
3909 drm_fb_get_bpp_depth(format, &depth, &bpp);
3910 return bpp >> 3;
3911 }
3912}
3913EXPORT_SYMBOL(drm_format_plane_cpp);
01b68b04
VS		 3914
3915/**
3916 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3917 * @format: pixel format (DRM_FORMAT_*)
3918 *
3919 * RETURNS:
3920 * The horizontal chroma subsampling factor for the
3921 * specified pixel format.
3922 */
3923int drm_format_horz_chroma_subsampling(uint32_t format)
3924{
3925 switch (format) {
3926 case DRM_FORMAT_YUV411:
3927 case DRM_FORMAT_YVU411:
3928 case DRM_FORMAT_YUV410:
3929 case DRM_FORMAT_YVU410:
3930 return 4;
3931 case DRM_FORMAT_YUYV:
3932 case DRM_FORMAT_YVYU:
3933 case DRM_FORMAT_UYVY:
3934 case DRM_FORMAT_VYUY:
3935 case DRM_FORMAT_NV12:
3936 case DRM_FORMAT_NV21:
3937 case DRM_FORMAT_NV16:
3938 case DRM_FORMAT_NV61:
3939 case DRM_FORMAT_YUV422:
3940 case DRM_FORMAT_YVU422:
3941 case DRM_FORMAT_YUV420:
3942 case DRM_FORMAT_YVU420:
3943 return 2;
3944 default:
3945 return 1;
3946 }
3947}
3948EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3949
3950/**
3951 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3952 * @format: pixel format (DRM_FORMAT_*)
3953 *
3954 * RETURNS:
3955 * The vertical chroma subsampling factor for the
3956 * specified pixel format.
3957 */
3958int drm_format_vert_chroma_subsampling(uint32_t format)
3959{
3960 switch (format) {
3961 case DRM_FORMAT_YUV410:
3962 case DRM_FORMAT_YVU410:
3963 return 4;
3964 case DRM_FORMAT_YUV420:
3965 case DRM_FORMAT_YVU420:
3966 case DRM_FORMAT_NV12:
3967 case DRM_FORMAT_NV21:
3968 return 2;
3969 default:
3970 return 1;
3971 }
3972}
3973EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
87d24fc3
LP		 3974
3975/**
3976 * drm_mode_config_init - initialize DRM mode_configuration structure
3977 * @dev: DRM device
3978 *
3979 * Initialize @dev's mode_config structure, used for tracking the graphics
3980 * configuration of @dev.
3981 *
3982 * Since this initializes the modeset locks, no locking is possible. Which is no
3983 * problem, since this should happen single threaded at init time. It is the
3984 * driver's problem to ensure this guarantee.
3985 *
3986 */
3987void drm_mode_config_init(struct drm_device *dev)
3988{
3989 mutex_init(&dev->mode_config.mutex);
3990 mutex_init(&dev->mode_config.idr_mutex);
3991 mutex_init(&dev->mode_config.fb_lock);
3992 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3993 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3994 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3b336ec4 3995 INIT_LIST_HEAD(&dev->mode_config.bridge_list);
87d24fc3
LP		 3996 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3997 INIT_LIST_HEAD(&dev->mode_config.property_list);
3998 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3999 INIT_LIST_HEAD(&dev->mode_config.plane_list);
4000 idr_init(&dev->mode_config.crtc_idr);
4001
4002 drm_modeset_lock_all(dev);
4003 drm_mode_create_standard_connector_properties(dev);
4004 drm_modeset_unlock_all(dev);
4005
4006 /* Just to be sure */
4007 dev->mode_config.num_fb = 0;
4008 dev->mode_config.num_connector = 0;
4009 dev->mode_config.num_crtc = 0;
4010 dev->mode_config.num_encoder = 0;
4011}
4012EXPORT_SYMBOL(drm_mode_config_init);
4013
4014/**
4015 * drm_mode_config_cleanup - free up DRM mode_config info
4016 * @dev: DRM device
4017 *
4018 * Free up all the connectors and CRTCs associated with this DRM device, then
4019 * free up the framebuffers and associated buffer objects.
4020 *
4021 * Note that since this /should/ happen single-threaded at driver/device
4022 * teardown time, no locking is required. It's the driver's job to ensure that
4023 * this guarantee actually holds true.
4024 *
4025 * FIXME: cleanup any dangling user buffer objects too
4026 */
4027void drm_mode_config_cleanup(struct drm_device *dev)
4028{
4029 struct drm_connector *connector, *ot;
4030 struct drm_crtc *crtc, *ct;
4031 struct drm_encoder *encoder, *enct;
3b336ec4 4032 struct drm_bridge *bridge, *brt;
87d24fc3
LP		 4033 struct drm_framebuffer *fb, *fbt;
4034 struct drm_property *property, *pt;
4035 struct drm_property_blob *blob, *bt;
4036 struct drm_plane *plane, *plt;
4037
4038 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
4039 head) {
4040 encoder->funcs->destroy(encoder);
4041 }
4042
3b336ec4
SP		 4043 list_for_each_entry_safe(bridge, brt,
4044 &dev->mode_config.bridge_list, head) {
4045 bridge->funcs->destroy(bridge);
4046 }
4047
87d24fc3
LP		 4048 list_for_each_entry_safe(connector, ot,
4049 &dev->mode_config.connector_list, head) {
4050 connector->funcs->destroy(connector);
4051 }
4052
4053 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
4054 head) {
4055 drm_property_destroy(dev, property);
4056 }
4057
4058 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
4059 head) {
4060 drm_property_destroy_blob(dev, blob);
4061 }
4062
4063 /*
4064 * Single-threaded teardown context, so it's not required to grab the
4065 * fb_lock to protect against concurrent fb_list access. Contrary, it
4066 * would actually deadlock with the drm_framebuffer_cleanup function.
4067 *
4068 * Also, if there are any framebuffers left, that's a driver leak now,
4069 * so politely WARN about this.
4070 */
4071 WARN_ON(!list_empty(&dev->mode_config.fb_list));
4072 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
4073 drm_framebuffer_remove(fb);
4074 }
4075
4076 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
4077 head) {
4078 plane->funcs->destroy(plane);
4079 }
4080
4081 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
4082 crtc->funcs->destroy(crtc);
4083 }
4084
4085 idr_destroy(&dev->mode_config.crtc_idr);
4086}
4087EXPORT_SYMBOL(drm_mode_config_cleanup);
Linux kernel - Deliverables
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