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Merge branch 'for-airlied' of git://people.freedesktop.org/~mlankhorst/linux into...
[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 */
32#include <linux/list.h>
5a0e3ad6 33#include <linux/slab.h>
2d1a8a48 34#include <linux/export.h>
760285e7
DH		 35#include <drm/drmP.h>
36#include <drm/drm_crtc.h>
37#include <drm/drm_edid.h>
38#include <drm/drm_fourcc.h>
f453ba04 39
84849903
DV		 40/**
41 * drm_modeset_lock_all - take all modeset locks
42 * @dev: drm device
43 *
44 * This function takes all modeset locks, suitable where a more fine-grained
45 * scheme isn't (yet) implemented.
46 */
47void drm_modeset_lock_all(struct drm_device *dev)
48{
29494c17
DV		 49 struct drm_crtc *crtc;
50
84849903 51 mutex_lock(&dev->mode_config.mutex);
29494c17
DV		 52
53 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
54 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
84849903
DV		 55}
56EXPORT_SYMBOL(drm_modeset_lock_all);
57
58/**
59 * drm_modeset_unlock_all - drop all modeset locks
60 * @dev: device
61 */
62void drm_modeset_unlock_all(struct drm_device *dev)
63{
29494c17
DV		 64 struct drm_crtc *crtc;
65
66 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
67 mutex_unlock(&crtc->mutex);
68
84849903
DV		 69 mutex_unlock(&dev->mode_config.mutex);
70}
36206361 71
84849903
DV		 72EXPORT_SYMBOL(drm_modeset_unlock_all);
73
f453ba04
DA		 74/* Avoid boilerplate. I'm tired of typing. */
75#define DRM_ENUM_NAME_FN(fnname, list) \
76 char *fnname(int val) \
77 { \
78 int i; \
79 for (i = 0; i < ARRAY_SIZE(list); i++) { \
80 if (list[i].type == val) \
81 return list[i].name; \
82 } \
83 return "(unknown)"; \
84 }
85
86/*
87 * Global properties
88 */
89static struct drm_prop_enum_list drm_dpms_enum_list[] =
90{ { DRM_MODE_DPMS_ON, "On" },
91 { DRM_MODE_DPMS_STANDBY, "Standby" },
92 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
93 { DRM_MODE_DPMS_OFF, "Off" }
94};
95
96DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
97
98/*
99 * Optional properties
100 */
101static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
102{
53bd8389
JB		 103 { DRM_MODE_SCALE_NONE, "None" },
104 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
105 { DRM_MODE_SCALE_CENTER, "Center" },
106 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
f453ba04
DA		 107};
108
109static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
110{
111 { DRM_MODE_DITHERING_OFF, "Off" },
112 { DRM_MODE_DITHERING_ON, "On" },
92897b5c 113 { DRM_MODE_DITHERING_AUTO, "Automatic" },
f453ba04
DA		 114};
115
116/*
117 * Non-global properties, but "required" for certain connectors.
118 */
119static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
120{
121 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
122 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
123 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
124};
125
126DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
127
128static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
129{
130 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
131 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
132 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
133};
134
135DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
136 drm_dvi_i_subconnector_enum_list)
137
138static struct drm_prop_enum_list drm_tv_select_enum_list[] =
139{
140 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
141 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
142 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
143 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 144 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 145};
146
147DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
148
149static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
150{
151 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
152 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
153 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
154 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 155 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 156};
157
158DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
159 drm_tv_subconnector_enum_list)
160
884840aa
JB		 161static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
162 { DRM_MODE_DIRTY_OFF, "Off" },
163 { DRM_MODE_DIRTY_ON, "On" },
164 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
165};
166
167DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
168 drm_dirty_info_enum_list)
169
f453ba04
DA		 170struct drm_conn_prop_enum_list {
171 int type;
172 char *name;
173 int count;
174};
175
176/*
177 * Connector and encoder types.
178 */
179static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
180{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
181 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
182 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
183 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
184 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
185 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
186 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
187 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
188 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
e76116ca
AD		 189 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
190 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
191 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
192 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
74bd3c26 193 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
e76116ca 194 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
a7331e5c 195 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
f453ba04
DA		 196};
197
198static struct drm_prop_enum_list drm_encoder_enum_list[] =
199{ { DRM_MODE_ENCODER_NONE, "None" },
200 { DRM_MODE_ENCODER_DAC, "DAC" },
201 { DRM_MODE_ENCODER_TMDS, "TMDS" },
202 { DRM_MODE_ENCODER_LVDS, "LVDS" },
203 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 204 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
f453ba04
DA		 205};
206
207char *drm_get_encoder_name(struct drm_encoder *encoder)
208{
209 static char buf[32];
210
211 snprintf(buf, 32, "%s-%d",
212 drm_encoder_enum_list[encoder->encoder_type].name,
213 encoder->base.id);
214 return buf;
215}
13a8195b 216EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04
DA		 217
218char *drm_get_connector_name(struct drm_connector *connector)
219{
220 static char buf[32];
221
222 snprintf(buf, 32, "%s-%d",
223 drm_connector_enum_list[connector->connector_type].name,
224 connector->connector_type_id);
225 return buf;
226}
227EXPORT_SYMBOL(drm_get_connector_name);
228
229char *drm_get_connector_status_name(enum drm_connector_status status)
230{
231 if (status == connector_status_connected)
232 return "connected";
233 else if (status == connector_status_disconnected)
234 return "disconnected";
235 else
236 return "unknown";
237}
238
239/**
065a50ed 240 * drm_mode_object_get - allocate a new modeset identifier
f453ba04 241 * @dev: DRM device
065a50ed
DV		 242 * @obj: object pointer, used to generate unique ID
243 * @obj_type: object type
f453ba04 244 *
f453ba04
DA		 245 * Create a unique identifier based on @ptr in @dev's identifier space. Used
246 * for tracking modes, CRTCs and connectors.
247 *
248 * RETURNS:
249 * New unique (relative to other objects in @dev) integer identifier for the
250 * object.
251 */
252static int drm_mode_object_get(struct drm_device *dev,
253 struct drm_mode_object *obj, uint32_t obj_type)
254{
255 int new_id = 0;
256 int ret;
257
f453ba04
DA		 258again:
259 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
260 DRM_ERROR("Ran out memory getting a mode number\n");
f1ae126c 261 return -ENOMEM;
f453ba04
DA		 262 }
263
ad2563c2 264 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 265 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
4b096ac1
DV		 266
267 if (!ret) {
268 /*
269 * Set up the object linking under the protection of the idr
270 * lock so that other users can't see inconsistent state.
271 */
272 obj->id = new_id;
273 obj->type = obj_type;
274 }
ad2563c2 275 mutex_unlock(&dev->mode_config.idr_mutex);
4b096ac1 276
f453ba04
DA		 277 if (ret == -EAGAIN)
278 goto again;
279
4b096ac1 280 return ret;
f453ba04
DA		 281}
282
283/**
065a50ed 284 * drm_mode_object_put - free a modeset identifer
f453ba04 285 * @dev: DRM device
065a50ed 286 * @object: object to free
f453ba04 287 *
f453ba04
DA		 288 * Free @id from @dev's unique identifier pool.
289 */
290static void drm_mode_object_put(struct drm_device *dev,
291 struct drm_mode_object *object)
292{
ad2563c2 293 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 294 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 295 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 296}
297
786b99ed
DV		 298/**
299 * drm_mode_object_find - look up a drm object with static lifetime
300 * @dev: drm device
301 * @id: id of the mode object
302 * @type: type of the mode object
303 *
304 * Note that framebuffers cannot be looked up with this functions - since those
305 * are reference counted, they need special treatment.
306 */
7a9c9060
DV		 307struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
308 uint32_t id, uint32_t type)
f453ba04 309{
ad2563c2 310 struct drm_mode_object *obj = NULL;
f453ba04 311
786b99ed
DV		 312 /* Framebuffers are reference counted and need their own lookup
313 * function.*/
314 WARN_ON(type == DRM_MODE_OBJECT_FB);
315
ad2563c2 316 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 317 obj = idr_find(&dev->mode_config.crtc_idr, id);
318 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 319 obj = NULL;
320 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 321
322 return obj;
323}
324EXPORT_SYMBOL(drm_mode_object_find);
325
f453ba04
DA		 326/**
327 * drm_framebuffer_init - initialize a framebuffer
328 * @dev: DRM device
065a50ed
DV		 329 * @fb: framebuffer to be initialized
330 * @funcs: ... with these functions
f453ba04 331 *
f453ba04
DA		 332 * Allocates an ID for the framebuffer's parent mode object, sets its mode
333 * functions & device file and adds it to the master fd list.
334 *
4b096ac1
DV		 335 * IMPORTANT:
336 * This functions publishes the fb and makes it available for concurrent access
337 * by other users. Which means by this point the fb _must_ be fully set up -
338 * since all the fb attributes are invariant over its lifetime, no further
339 * locking but only correct reference counting is required.
340 *
f453ba04 341 * RETURNS:
af901ca1 342 * Zero on success, error code on failure.
f453ba04
DA		 343 */
344int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
345 const struct drm_framebuffer_funcs *funcs)
346{
347 int ret;
348
4b096ac1 349 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e 350 kref_init(&fb->refcount);
4b096ac1
DV		 351 INIT_LIST_HEAD(&fb->filp_head);
352 fb->dev = dev;
353 fb->funcs = funcs;
f7eff60e 354
f453ba04 355 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
6bfc56aa 356 if (ret)
4b096ac1 357 goto out;
f453ba04 358
2b677e8c
DV		 359 /* Grab the idr reference. */
360 drm_framebuffer_reference(fb);
361
f453ba04
DA		 362 dev->mode_config.num_fb++;
363 list_add(&fb->head, &dev->mode_config.fb_list);
4b096ac1
DV		 364out:
365 mutex_unlock(&dev->mode_config.fb_lock);
f453ba04
DA		 366
367 return 0;
368}
369EXPORT_SYMBOL(drm_framebuffer_init);
370
f7eff60e
RC		 371static void drm_framebuffer_free(struct kref *kref)
372{
373 struct drm_framebuffer *fb =
374 container_of(kref, struct drm_framebuffer, refcount);
375 fb->funcs->destroy(fb);
376}
377
2b677e8c
DV		 378static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
379 uint32_t id)
380{
381 struct drm_mode_object *obj = NULL;
382 struct drm_framebuffer *fb;
383
384 mutex_lock(&dev->mode_config.idr_mutex);
385 obj = idr_find(&dev->mode_config.crtc_idr, id);
386 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
387 fb = NULL;
388 else
389 fb = obj_to_fb(obj);
390 mutex_unlock(&dev->mode_config.idr_mutex);
391
392 return fb;
393}
394
786b99ed
DV		 395/**
396 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
397 * @dev: drm device
398 * @id: id of the fb object
399 *
400 * If successful, this grabs an additional reference to the framebuffer -
401 * callers need to make sure to eventually unreference the returned framebuffer
402 * again.
403 */
404struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
405 uint32_t id)
406{
786b99ed
DV		 407 struct drm_framebuffer *fb;
408
409 mutex_lock(&dev->mode_config.fb_lock);
2b677e8c 410 fb = __drm_framebuffer_lookup(dev, id);
786b99ed
DV		 411 if (fb)
412 kref_get(&fb->refcount);
786b99ed
DV		 413 mutex_unlock(&dev->mode_config.fb_lock);
414
415 return fb;
416}
417EXPORT_SYMBOL(drm_framebuffer_lookup);
418
f7eff60e
RC		 419/**
420 * drm_framebuffer_unreference - unref a framebuffer
065a50ed
DV		 421 * @fb: framebuffer to unref
422 *
423 * This functions decrements the fb's refcount and frees it if it drops to zero.
f7eff60e
RC		 424 */
425void drm_framebuffer_unreference(struct drm_framebuffer *fb)
426{
f7eff60e 427 DRM_DEBUG("FB ID: %d\n", fb->base.id);
f7eff60e
RC		 428 kref_put(&fb->refcount, drm_framebuffer_free);
429}
430EXPORT_SYMBOL(drm_framebuffer_unreference);
431
432/**
433 * drm_framebuffer_reference - incr the fb refcnt
065a50ed 434 * @fb: framebuffer
f7eff60e
RC		 435 */
436void drm_framebuffer_reference(struct drm_framebuffer *fb)
437{
438 DRM_DEBUG("FB ID: %d\n", fb->base.id);
439 kref_get(&fb->refcount);
440}
441EXPORT_SYMBOL(drm_framebuffer_reference);
442
2b677e8c
DV		 443static void drm_framebuffer_free_bug(struct kref *kref)
444{
445 BUG();
446}
447
6c2a7532
DV		 448static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
449{
450 DRM_DEBUG("FB ID: %d\n", fb->base.id);
451 kref_put(&fb->refcount, drm_framebuffer_free_bug);
452}
453
2b677e8c
DV		 454/* dev->mode_config.fb_lock must be held! */
455static void __drm_framebuffer_unregister(struct drm_device *dev,
456 struct drm_framebuffer *fb)
457{
458 mutex_lock(&dev->mode_config.idr_mutex);
459 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
460 mutex_unlock(&dev->mode_config.idr_mutex);
461
462 fb->base.id = 0;
463
6c2a7532 464 __drm_framebuffer_unreference(fb);
2b677e8c
DV		 465}
466
36206361
DV		 467/**
468 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
469 * @fb: fb to unregister
470 *
471 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
472 * those used for fbdev. Note that the caller must hold a reference of it's own,
473 * i.e. the object may not be destroyed through this call (since it'll lead to a
474 * locking inversion).
475 */
476void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
477{
2b677e8c
DV		 478 struct drm_device *dev = fb->dev;
479
480 mutex_lock(&dev->mode_config.fb_lock);
481 /* Mark fb as reaped and drop idr ref. */
482 __drm_framebuffer_unregister(dev, fb);
483 mutex_unlock(&dev->mode_config.fb_lock);
36206361
DV		 484}
485EXPORT_SYMBOL(drm_framebuffer_unregister_private);
486
f453ba04
DA		 487/**
488 * drm_framebuffer_cleanup - remove a framebuffer object
489 * @fb: framebuffer to remove
490 *
36206361
DV		 491 * Cleanup references to a user-created framebuffer. This function is intended
492 * to be used from the drivers ->destroy callback.
493 *
494 * Note that this function does not remove the fb from active usuage - if it is
495 * still used anywhere, hilarity can ensue since userspace could call getfb on
496 * the id and get back -EINVAL. Obviously no concern at driver unload time.
497 *
498 * Also, the framebuffer will not be removed from the lookup idr - for
499 * user-created framebuffers this will happen in in the rmfb ioctl. For
500 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
501 * drm_framebuffer_unregister_private.
f453ba04
DA		 502 */
503void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
f7eff60e
RC		 504{
505 struct drm_device *dev = fb->dev;
8faf6b18 506
4b096ac1 507 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e
RC		 508 list_del(&fb->head);
509 dev->mode_config.num_fb--;
4b096ac1 510 mutex_unlock(&dev->mode_config.fb_lock);
f7eff60e
RC		 511}
512EXPORT_SYMBOL(drm_framebuffer_cleanup);
513
514/**
515 * drm_framebuffer_remove - remove and unreference a framebuffer object
516 * @fb: framebuffer to remove
517 *
f7eff60e 518 * Scans all the CRTCs and planes in @dev's mode_config. If they're
36206361 519 * using @fb, removes it, setting it to NULL. Then drops the reference to the
b62584e3
DV		 520 * passed-in framebuffer. Might take the modeset locks.
521 *
522 * Note that this function optimizes the cleanup away if the caller holds the
523 * last reference to the framebuffer. It is also guaranteed to not take the
524 * modeset locks in this case.
f7eff60e
RC		 525 */
526void drm_framebuffer_remove(struct drm_framebuffer *fb)
f453ba04
DA		 527{
528 struct drm_device *dev = fb->dev;
529 struct drm_crtc *crtc;
8cf5c917 530 struct drm_plane *plane;
5ef5f72f
DA		 531 struct drm_mode_set set;
532 int ret;
f453ba04 533
4b096ac1 534 WARN_ON(!list_empty(&fb->filp_head));
8faf6b18 535
b62584e3
DV		 536 /*
537 * drm ABI mandates that we remove any deleted framebuffers from active
538 * useage. But since most sane clients only remove framebuffers they no
539 * longer need, try to optimize this away.
540 *
541 * Since we're holding a reference ourselves, observing a refcount of 1
542 * means that we're the last holder and can skip it. Also, the refcount
543 * can never increase from 1 again, so we don't need any barriers or
544 * locks.
545 *
546 * Note that userspace could try to race with use and instate a new
547 * usage _after_ we've cleared all current ones. End result will be an
548 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
549 * in this manner.
550 */
551 if (atomic_read(&fb->refcount.refcount) > 1) {
552 drm_modeset_lock_all(dev);
553 /* remove from any CRTC */
554 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
555 if (crtc->fb == fb) {
556 /* should turn off the crtc */
557 memset(&set, 0, sizeof(struct drm_mode_set));
558 set.crtc = crtc;
559 set.fb = NULL;
560 ret = drm_mode_set_config_internal(&set);
561 if (ret)
562 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
563 }
5ef5f72f 564 }
f453ba04 565
b62584e3
DV		 566 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
567 if (plane->fb == fb) {
568 /* should turn off the crtc */
569 ret = plane->funcs->disable_plane(plane);
570 if (ret)
571 DRM_ERROR("failed to disable plane with busy fb\n");
572 /* disconnect the plane from the fb and crtc: */
573 __drm_framebuffer_unreference(plane->fb);
574 plane->fb = NULL;
575 plane->crtc = NULL;
576 }
8cf5c917 577 }
b62584e3 578 drm_modeset_unlock_all(dev);
8cf5c917
JB		 579 }
580
f7eff60e 581 drm_framebuffer_unreference(fb);
f453ba04 582}
f7eff60e 583EXPORT_SYMBOL(drm_framebuffer_remove);
f453ba04
DA		 584
585/**
586 * drm_crtc_init - Initialise a new CRTC object
587 * @dev: DRM device
588 * @crtc: CRTC object to init
589 * @funcs: callbacks for the new CRTC
590 *
f453ba04 591 * Inits a new object created as base part of an driver crtc object.
6bfc56aa
VS		 592 *
593 * RETURNS:
594 * Zero on success, error code on failure.
f453ba04 595 */
6bfc56aa 596int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
f453ba04
DA		 597 const struct drm_crtc_funcs *funcs)
598{
6bfc56aa
VS		 599 int ret;
600
f453ba04
DA		 601 crtc->dev = dev;
602 crtc->funcs = funcs;
7c80e128 603 crtc->invert_dimensions = false;
f453ba04 604
84849903 605 drm_modeset_lock_all(dev);
29494c17
DV		 606 mutex_init(&crtc->mutex);
607 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
6bfc56aa
VS		 608
609 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
610 if (ret)
611 goto out;
f453ba04 612
bffd9de0
PZ		 613 crtc->base.properties = &crtc->properties;
614
f453ba04
DA		 615 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
616 dev->mode_config.num_crtc++;
6bfc56aa
VS		 617
618 out:
84849903 619 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 620
621 return ret;
f453ba04
DA		 622}
623EXPORT_SYMBOL(drm_crtc_init);
624
625/**
626 * drm_crtc_cleanup - Cleans up the core crtc usage.
627 * @crtc: CRTC to cleanup
628 *
f453ba04
DA		 629 * Cleanup @crtc. Removes from drm modesetting space
630 * does NOT free object, caller does that.
631 */
632void drm_crtc_cleanup(struct drm_crtc *crtc)
633{
634 struct drm_device *dev = crtc->dev;
635
9e1c156f
SK		 636 kfree(crtc->gamma_store);
637 crtc->gamma_store = NULL;
f453ba04
DA		 638
639 drm_mode_object_put(dev, &crtc->base);
640 list_del(&crtc->head);
641 dev->mode_config.num_crtc--;
642}
643EXPORT_SYMBOL(drm_crtc_cleanup);
644
645/**
646 * drm_mode_probed_add - add a mode to a connector's probed mode list
647 * @connector: connector the new mode
648 * @mode: mode data
649 *
f453ba04
DA		 650 * Add @mode to @connector's mode list for later use.
651 */
652void drm_mode_probed_add(struct drm_connector *connector,
653 struct drm_display_mode *mode)
654{
655 list_add(&mode->head, &connector->probed_modes);
656}
657EXPORT_SYMBOL(drm_mode_probed_add);
658
659/**
660 * drm_mode_remove - remove and free a mode
661 * @connector: connector list to modify
662 * @mode: mode to remove
663 *
f453ba04
DA		 664 * Remove @mode from @connector's mode list, then free it.
665 */
666void drm_mode_remove(struct drm_connector *connector,
667 struct drm_display_mode *mode)
668{
669 list_del(&mode->head);
554f1d78 670 drm_mode_destroy(connector->dev, mode);
f453ba04
DA		 671}
672EXPORT_SYMBOL(drm_mode_remove);
673
674/**
675 * drm_connector_init - Init a preallocated connector
676 * @dev: DRM device
677 * @connector: the connector to init
678 * @funcs: callbacks for this connector
065a50ed 679 * @connector_type: user visible type of the connector
f453ba04 680 *
f453ba04
DA		 681 * Initialises a preallocated connector. Connectors should be
682 * subclassed as part of driver connector objects.
6bfc56aa
VS		 683 *
684 * RETURNS:
685 * Zero on success, error code on failure.
f453ba04 686 */
6bfc56aa
VS		 687int drm_connector_init(struct drm_device *dev,
688 struct drm_connector *connector,
689 const struct drm_connector_funcs *funcs,
690 int connector_type)
f453ba04 691{
6bfc56aa
VS		 692 int ret;
693
84849903 694 drm_modeset_lock_all(dev);
f453ba04 695
6bfc56aa
VS		 696 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
697 if (ret)
698 goto out;
699
7e3bdf4a 700 connector->base.properties = &connector->properties;
f453ba04
DA		 701 connector->dev = dev;
702 connector->funcs = funcs;
f453ba04
DA		 703 connector->connector_type = connector_type;
704 connector->connector_type_id =
705 ++drm_connector_enum_list[connector_type].count; /* TODO */
706 INIT_LIST_HEAD(&connector->user_modes);
707 INIT_LIST_HEAD(&connector->probed_modes);
708 INIT_LIST_HEAD(&connector->modes);
709 connector->edid_blob_ptr = NULL;
5e2cb2f6 710 connector->status = connector_status_unknown;
f453ba04
DA		 711
712 list_add_tail(&connector->head, &dev->mode_config.connector_list);
713 dev->mode_config.num_connector++;
714
a7331e5c 715 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
58495563 716 drm_object_attach_property(&connector->base,
a7331e5c
TH		 717 dev->mode_config.edid_property,
718 0);
f453ba04 719
58495563 720 drm_object_attach_property(&connector->base,
f453ba04
DA		 721 dev->mode_config.dpms_property, 0);
722
6bfc56aa 723 out:
84849903 724 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 725
726 return ret;
f453ba04
DA		 727}
728EXPORT_SYMBOL(drm_connector_init);
729
730/**
731 * drm_connector_cleanup - cleans up an initialised connector
732 * @connector: connector to cleanup
733 *
f453ba04
DA		 734 * Cleans up the connector but doesn't free the object.
735 */
736void drm_connector_cleanup(struct drm_connector *connector)
737{
738 struct drm_device *dev = connector->dev;
739 struct drm_display_mode *mode, *t;
740
741 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
742 drm_mode_remove(connector, mode);
743
744 list_for_each_entry_safe(mode, t, &connector->modes, head)
745 drm_mode_remove(connector, mode);
746
747 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
748 drm_mode_remove(connector, mode);
749
f453ba04
DA		 750 drm_mode_object_put(dev, &connector->base);
751 list_del(&connector->head);
6380c509 752 dev->mode_config.num_connector--;
f453ba04
DA		 753}
754EXPORT_SYMBOL(drm_connector_cleanup);
755
cbc7e221
DA		 756void drm_connector_unplug_all(struct drm_device *dev)
757{
758 struct drm_connector *connector;
759
760 /* taking the mode config mutex ends up in a clash with sysfs */
761 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
762 drm_sysfs_connector_remove(connector);
763
764}
765EXPORT_SYMBOL(drm_connector_unplug_all);
766
6bfc56aa 767int drm_encoder_init(struct drm_device *dev,
cbc7e221
DA		 768 struct drm_encoder *encoder,
769 const struct drm_encoder_funcs *funcs,
770 int encoder_type)
f453ba04 771{
6bfc56aa
VS		 772 int ret;
773
84849903 774 drm_modeset_lock_all(dev);
f453ba04 775
6bfc56aa
VS		 776 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
777 if (ret)
778 goto out;
f453ba04 779
6bfc56aa 780 encoder->dev = dev;
f453ba04
DA		 781 encoder->encoder_type = encoder_type;
782 encoder->funcs = funcs;
783
784 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
785 dev->mode_config.num_encoder++;
786
6bfc56aa 787 out:
84849903 788 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 789
790 return ret;
f453ba04
DA		 791}
792EXPORT_SYMBOL(drm_encoder_init);
793
794void drm_encoder_cleanup(struct drm_encoder *encoder)
795{
796 struct drm_device *dev = encoder->dev;
84849903 797 drm_modeset_lock_all(dev);
f453ba04
DA		 798 drm_mode_object_put(dev, &encoder->base);
799 list_del(&encoder->head);
6380c509 800 dev->mode_config.num_encoder--;
84849903 801 drm_modeset_unlock_all(dev);
f453ba04
DA		 802}
803EXPORT_SYMBOL(drm_encoder_cleanup);
804
8cf5c917
JB		 805int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
806 unsigned long possible_crtcs,
807 const struct drm_plane_funcs *funcs,
0a7eb243
RC		 808 const uint32_t *formats, uint32_t format_count,
809 bool priv)
8cf5c917 810{
6bfc56aa
VS		 811 int ret;
812
84849903 813 drm_modeset_lock_all(dev);
8cf5c917 814
6bfc56aa
VS		 815 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
816 if (ret)
817 goto out;
818
4d93914a 819 plane->base.properties = &plane->properties;
8cf5c917 820 plane->dev = dev;
8cf5c917
JB		 821 plane->funcs = funcs;
822 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
823 GFP_KERNEL);
824 if (!plane->format_types) {
825 DRM_DEBUG_KMS("out of memory when allocating plane\n");
826 drm_mode_object_put(dev, &plane->base);
6bfc56aa
VS		 827 ret = -ENOMEM;
828 goto out;
8cf5c917
JB		 829 }
830
308e5bcb 831 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 832 plane->format_count = format_count;
833 plane->possible_crtcs = possible_crtcs;
834
0a7eb243
RC		 835 /* private planes are not exposed to userspace, but depending on
836 * display hardware, might be convenient to allow sharing programming
837 * for the scanout engine with the crtc implementation.
838 */
839 if (!priv) {
840 list_add_tail(&plane->head, &dev->mode_config.plane_list);
841 dev->mode_config.num_plane++;
842 } else {
843 INIT_LIST_HEAD(&plane->head);
844 }
8cf5c917 845
6bfc56aa 846 out:
84849903 847 drm_modeset_unlock_all(dev);
8cf5c917 848
6bfc56aa 849 return ret;
8cf5c917
JB		 850}
851EXPORT_SYMBOL(drm_plane_init);
852
853void drm_plane_cleanup(struct drm_plane *plane)
854{
855 struct drm_device *dev = plane->dev;
856
84849903 857 drm_modeset_lock_all(dev);
8cf5c917
JB		 858 kfree(plane->format_types);
859 drm_mode_object_put(dev, &plane->base);
0a7eb243
RC		 860 /* if not added to a list, it must be a private plane */
861 if (!list_empty(&plane->head)) {
862 list_del(&plane->head);
863 dev->mode_config.num_plane--;
864 }
84849903 865 drm_modeset_unlock_all(dev);
8cf5c917
JB		 866}
867EXPORT_SYMBOL(drm_plane_cleanup);
868
f453ba04
DA		 869/**
870 * drm_mode_create - create a new display mode
871 * @dev: DRM device
872 *
f453ba04
DA		 873 * Create a new drm_display_mode, give it an ID, and return it.
874 *
875 * RETURNS:
876 * Pointer to new mode on success, NULL on error.
877 */
878struct drm_display_mode *drm_mode_create(struct drm_device *dev)
879{
880 struct drm_display_mode *nmode;
881
882 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
883 if (!nmode)
884 return NULL;
885
6bfc56aa
VS		 886 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
887 kfree(nmode);
888 return NULL;
889 }
890
f453ba04
DA		 891 return nmode;
892}
893EXPORT_SYMBOL(drm_mode_create);
894
895/**
896 * drm_mode_destroy - remove a mode
897 * @dev: DRM device
898 * @mode: mode to remove
899 *
f453ba04
DA		 900 * Free @mode's unique identifier, then free it.
901 */
902void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
903{
ee34ab5b
VS		 904 if (!mode)
905 return;
906
f453ba04
DA		 907 drm_mode_object_put(dev, &mode->base);
908
909 kfree(mode);
910}
911EXPORT_SYMBOL(drm_mode_destroy);
912
913static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
914{
915 struct drm_property *edid;
916 struct drm_property *dpms;
f453ba04
DA		 917
918 /*
919 * Standard properties (apply to all connectors)
920 */
921 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
922 DRM_MODE_PROP_IMMUTABLE,
923 "EDID", 0);
924 dev->mode_config.edid_property = edid;
925
4a67d391
SH		 926 dpms = drm_property_create_enum(dev, 0,
927 "DPMS", drm_dpms_enum_list,
928 ARRAY_SIZE(drm_dpms_enum_list));
f453ba04
DA		 929 dev->mode_config.dpms_property = dpms;
930
931 return 0;
932}
933
934/**
935 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
936 * @dev: DRM device
937 *
938 * Called by a driver the first time a DVI-I connector is made.
939 */
940int drm_mode_create_dvi_i_properties(struct drm_device *dev)
941{
942 struct drm_property *dvi_i_selector;
943 struct drm_property *dvi_i_subconnector;
f453ba04
DA		 944
945 if (dev->mode_config.dvi_i_select_subconnector_property)
946 return 0;
947
948 dvi_i_selector =
4a67d391 949 drm_property_create_enum(dev, 0,
f453ba04 950 "select subconnector",
4a67d391 951 drm_dvi_i_select_enum_list,
f453ba04 952 ARRAY_SIZE(drm_dvi_i_select_enum_list));
f453ba04
DA		 953 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
954
4a67d391 955 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
f453ba04 956 "subconnector",
4a67d391 957 drm_dvi_i_subconnector_enum_list,
f453ba04 958 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
f453ba04
DA		 959 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
960
961 return 0;
962}
963EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
964
965/**
966 * drm_create_tv_properties - create TV specific connector properties
967 * @dev: DRM device
968 * @num_modes: number of different TV formats (modes) supported
969 * @modes: array of pointers to strings containing name of each format
970 *
971 * Called by a driver's TV initialization routine, this function creates
972 * the TV specific connector properties for a given device. Caller is
973 * responsible for allocating a list of format names and passing them to
974 * this routine.
975 */
976int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
977 char *modes[])
978{
979 struct drm_property *tv_selector;
980 struct drm_property *tv_subconnector;
981 int i;
982
983 if (dev->mode_config.tv_select_subconnector_property)
984 return 0;
985
986 /*
987 * Basic connector properties
988 */
4a67d391 989 tv_selector = drm_property_create_enum(dev, 0,
f453ba04 990 "select subconnector",
4a67d391 991 drm_tv_select_enum_list,
f453ba04 992 ARRAY_SIZE(drm_tv_select_enum_list));
f453ba04
DA		 993 dev->mode_config.tv_select_subconnector_property = tv_selector;
994
995 tv_subconnector =
4a67d391
SH		 996 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
997 "subconnector",
998 drm_tv_subconnector_enum_list,
f453ba04 999 ARRAY_SIZE(drm_tv_subconnector_enum_list));
f453ba04
DA		 1000 dev->mode_config.tv_subconnector_property = tv_subconnector;
1001
1002 /*
1003 * Other, TV specific properties: margins & TV modes.
1004 */
1005 dev->mode_config.tv_left_margin_property =
d9bc3c02 1006 drm_property_create_range(dev, 0, "left margin", 0, 100);
f453ba04
DA		 1007
1008 dev->mode_config.tv_right_margin_property =
d9bc3c02 1009 drm_property_create_range(dev, 0, "right margin", 0, 100);
f453ba04
DA		 1010
1011 dev->mode_config.tv_top_margin_property =
d9bc3c02 1012 drm_property_create_range(dev, 0, "top margin", 0, 100);
f453ba04
DA		 1013
1014 dev->mode_config.tv_bottom_margin_property =
d9bc3c02 1015 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
f453ba04
DA		 1016
1017 dev->mode_config.tv_mode_property =
1018 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1019 "mode", num_modes);
1020 for (i = 0; i < num_modes; i++)
1021 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1022 i, modes[i]);
1023
b6b7902e 1024 dev->mode_config.tv_brightness_property =
d9bc3c02 1025 drm_property_create_range(dev, 0, "brightness", 0, 100);
b6b7902e
FJ		 1026
1027 dev->mode_config.tv_contrast_property =
d9bc3c02 1028 drm_property_create_range(dev, 0, "contrast", 0, 100);
b6b7902e
FJ		 1029
1030 dev->mode_config.tv_flicker_reduction_property =
d9bc3c02 1031 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
b6b7902e 1032
a75f0236 1033 dev->mode_config.tv_overscan_property =
d9bc3c02 1034 drm_property_create_range(dev, 0, "overscan", 0, 100);
a75f0236
FJ		 1035
1036 dev->mode_config.tv_saturation_property =
d9bc3c02 1037 drm_property_create_range(dev, 0, "saturation", 0, 100);
a75f0236
FJ		 1038
1039 dev->mode_config.tv_hue_property =
d9bc3c02 1040 drm_property_create_range(dev, 0, "hue", 0, 100);
a75f0236 1041
f453ba04
DA		 1042 return 0;
1043}
1044EXPORT_SYMBOL(drm_mode_create_tv_properties);
1045
1046/**
1047 * drm_mode_create_scaling_mode_property - create scaling mode property
1048 * @dev: DRM device
1049 *
1050 * Called by a driver the first time it's needed, must be attached to desired
1051 * connectors.
1052 */
1053int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1054{
1055 struct drm_property *scaling_mode;
f453ba04
DA		 1056
1057 if (dev->mode_config.scaling_mode_property)
1058 return 0;
1059
1060 scaling_mode =
4a67d391
SH		 1061 drm_property_create_enum(dev, 0, "scaling mode",
1062 drm_scaling_mode_enum_list,
f453ba04 1063 ARRAY_SIZE(drm_scaling_mode_enum_list));
f453ba04
DA		 1064
1065 dev->mode_config.scaling_mode_property = scaling_mode;
1066
1067 return 0;
1068}
1069EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1070
1071/**
1072 * drm_mode_create_dithering_property - create dithering property
1073 * @dev: DRM device
1074 *
1075 * Called by a driver the first time it's needed, must be attached to desired
1076 * connectors.
1077 */
1078int drm_mode_create_dithering_property(struct drm_device *dev)
1079{
1080 struct drm_property *dithering_mode;
f453ba04
DA		 1081
1082 if (dev->mode_config.dithering_mode_property)
1083 return 0;
1084
1085 dithering_mode =
4a67d391
SH		 1086 drm_property_create_enum(dev, 0, "dithering",
1087 drm_dithering_mode_enum_list,
f453ba04 1088 ARRAY_SIZE(drm_dithering_mode_enum_list));
f453ba04
DA		 1089 dev->mode_config.dithering_mode_property = dithering_mode;
1090
1091 return 0;
1092}
1093EXPORT_SYMBOL(drm_mode_create_dithering_property);
1094
884840aa
JB		 1095/**
1096 * drm_mode_create_dirty_property - create dirty property
1097 * @dev: DRM device
1098 *
1099 * Called by a driver the first time it's needed, must be attached to desired
1100 * connectors.
1101 */
1102int drm_mode_create_dirty_info_property(struct drm_device *dev)
1103{
1104 struct drm_property *dirty_info;
884840aa
JB		 1105
1106 if (dev->mode_config.dirty_info_property)
1107 return 0;
1108
1109 dirty_info =
4a67d391 1110 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
884840aa 1111 "dirty",
4a67d391 1112 drm_dirty_info_enum_list,
884840aa 1113 ARRAY_SIZE(drm_dirty_info_enum_list));
884840aa
JB		 1114 dev->mode_config.dirty_info_property = dirty_info;
1115
1116 return 0;
1117}
1118EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1119
f453ba04
DA		 1120/**
1121 * drm_mode_config_init - initialize DRM mode_configuration structure
1122 * @dev: DRM device
1123 *
f453ba04
DA		 1124 * Initialize @dev's mode_config structure, used for tracking the graphics
1125 * configuration of @dev.
8faf6b18
DV		 1126 *
1127 * Since this initializes the modeset locks, no locking is possible. Which is no
1128 * problem, since this should happen single threaded at init time. It is the
1129 * driver's problem to ensure this guarantee.
1130 *
f453ba04
DA		 1131 */
1132void drm_mode_config_init(struct drm_device *dev)
1133{
1134 mutex_init(&dev->mode_config.mutex);
ad2563c2 1135 mutex_init(&dev->mode_config.idr_mutex);
4b096ac1 1136 mutex_init(&dev->mode_config.fb_lock);
f453ba04 1137 INIT_LIST_HEAD(&dev->mode_config.fb_list);
f453ba04
DA		 1138 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
1139 INIT_LIST_HEAD(&dev->mode_config.connector_list);
1140 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
1141 INIT_LIST_HEAD(&dev->mode_config.property_list);
1142 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
8cf5c917 1143 INIT_LIST_HEAD(&dev->mode_config.plane_list);
f453ba04
DA		 1144 idr_init(&dev->mode_config.crtc_idr);
1145
84849903 1146 drm_modeset_lock_all(dev);
f453ba04 1147 drm_mode_create_standard_connector_properties(dev);
84849903 1148 drm_modeset_unlock_all(dev);
f453ba04
DA		 1149
1150 /* Just to be sure */
1151 dev->mode_config.num_fb = 0;
1152 dev->mode_config.num_connector = 0;
1153 dev->mode_config.num_crtc = 0;
1154 dev->mode_config.num_encoder = 0;
f453ba04
DA		 1155}
1156EXPORT_SYMBOL(drm_mode_config_init);
1157
1158int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
1159{
1160 uint32_t total_objects = 0;
1161
1162 total_objects += dev->mode_config.num_crtc;
1163 total_objects += dev->mode_config.num_connector;
1164 total_objects += dev->mode_config.num_encoder;
1165
f453ba04
DA		 1166 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1167 if (!group->id_list)
1168 return -ENOMEM;
1169
1170 group->num_crtcs = 0;
1171 group->num_connectors = 0;
1172 group->num_encoders = 0;
1173 return 0;
1174}
1175
1176int drm_mode_group_init_legacy_group(struct drm_device *dev,
1177 struct drm_mode_group *group)
1178{
1179 struct drm_crtc *crtc;
1180 struct drm_encoder *encoder;
1181 struct drm_connector *connector;
1182 int ret;
1183
1184 if ((ret = drm_mode_group_init(dev, group)))
1185 return ret;
1186
1187 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1188 group->id_list[group->num_crtcs++] = crtc->base.id;
1189
1190 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1191 group->id_list[group->num_crtcs + group->num_encoders++] =
1192 encoder->base.id;
1193
1194 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1195 group->id_list[group->num_crtcs + group->num_encoders +
1196 group->num_connectors++] = connector->base.id;
1197
1198 return 0;
1199}
9c1dfc55 1200EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
f453ba04
DA		 1201
1202/**
1203 * drm_mode_config_cleanup - free up DRM mode_config info
1204 * @dev: DRM device
1205 *
f453ba04
DA		 1206 * Free up all the connectors and CRTCs associated with this DRM device, then
1207 * free up the framebuffers and associated buffer objects.
1208 *
8faf6b18
DV		 1209 * Note that since this /should/ happen single-threaded at driver/device
1210 * teardown time, no locking is required. It's the driver's job to ensure that
1211 * this guarantee actually holds true.
1212 *
f453ba04
DA		 1213 * FIXME: cleanup any dangling user buffer objects too
1214 */
1215void drm_mode_config_cleanup(struct drm_device *dev)
1216{
1217 struct drm_connector *connector, *ot;
1218 struct drm_crtc *crtc, *ct;
1219 struct drm_encoder *encoder, *enct;
1220 struct drm_framebuffer *fb, *fbt;
1221 struct drm_property *property, *pt;
8cf5c917 1222 struct drm_plane *plane, *plt;
f453ba04
DA		 1223
1224 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
1225 head) {
1226 encoder->funcs->destroy(encoder);
1227 }
1228
1229 list_for_each_entry_safe(connector, ot,
1230 &dev->mode_config.connector_list, head) {
1231 connector->funcs->destroy(connector);
1232 }
1233
1234 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
1235 head) {
1236 drm_property_destroy(dev, property);
1237 }
1238
2b677e8c
DV		 1239 /*
1240 * Single-threaded teardown context, so it's not required to grab the
4b096ac1 1241 * fb_lock to protect against concurrent fb_list access. Contrary, it
2b677e8c
DV		 1242 * would actually deadlock with the drm_framebuffer_cleanup function.
1243 *
1244 * Also, if there are any framebuffers left, that's a driver leak now,
1245 * so politely WARN about this.
1246 */
1247 WARN_ON(!list_empty(&dev->mode_config.fb_list));
f453ba04 1248 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
f7eff60e 1249 drm_framebuffer_remove(fb);
f453ba04
DA		 1250 }
1251
8cf5c917
JB		 1252 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1253 head) {
1254 plane->funcs->destroy(plane);
1255 }
59ce062e 1256
3184009c
CW		 1257 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1258 crtc->funcs->destroy(crtc);
1259 }
1260
59ce062e
SH		 1261 idr_remove_all(&dev->mode_config.crtc_idr);
1262 idr_destroy(&dev->mode_config.crtc_idr);
f453ba04
DA		 1263}
1264EXPORT_SYMBOL(drm_mode_config_cleanup);
1265
f453ba04
DA		 1266/**
1267 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1268 * @out: drm_mode_modeinfo struct to return to the user
1269 * @in: drm_display_mode to use
1270 *
f453ba04
DA		 1271 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1272 * the user.
1273 */
93bbf6db
VS		 1274static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1275 const struct drm_display_mode *in)
f453ba04 1276{
e36fae38
VS		 1277 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1278 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1279 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1280 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1281 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1282 "timing values too large for mode info\n");
1283
f453ba04
DA		 1284 out->clock = in->clock;
1285 out->hdisplay = in->hdisplay;
1286 out->hsync_start = in->hsync_start;
1287 out->hsync_end = in->hsync_end;
1288 out->htotal = in->htotal;
1289 out->hskew = in->hskew;
1290 out->vdisplay = in->vdisplay;
1291 out->vsync_start = in->vsync_start;
1292 out->vsync_end = in->vsync_end;
1293 out->vtotal = in->vtotal;
1294 out->vscan = in->vscan;
1295 out->vrefresh = in->vrefresh;
1296 out->flags = in->flags;
1297 out->type = in->type;
1298 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1299 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1300}
1301
1302/**
1303 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1304 * @out: drm_display_mode to return to the user
1305 * @in: drm_mode_modeinfo to use
1306 *
f453ba04
DA		 1307 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1308 * the caller.
90367bf6
VS		 1309 *
1310 * RETURNS:
1311 * Zero on success, errno on failure.
f453ba04 1312 */
93bbf6db
VS		 1313static int drm_crtc_convert_umode(struct drm_display_mode *out,
1314 const struct drm_mode_modeinfo *in)
f453ba04 1315{
90367bf6
VS		 1316 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1317 return -ERANGE;
1318
f453ba04
DA		 1319 out->clock = in->clock;
1320 out->hdisplay = in->hdisplay;
1321 out->hsync_start = in->hsync_start;
1322 out->hsync_end = in->hsync_end;
1323 out->htotal = in->htotal;
1324 out->hskew = in->hskew;
1325 out->vdisplay = in->vdisplay;
1326 out->vsync_start = in->vsync_start;
1327 out->vsync_end = in->vsync_end;
1328 out->vtotal = in->vtotal;
1329 out->vscan = in->vscan;
1330 out->vrefresh = in->vrefresh;
1331 out->flags = in->flags;
1332 out->type = in->type;
1333 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1334 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
90367bf6
VS		 1335
1336 return 0;
f453ba04
DA		 1337}
1338
1339/**
1340 * drm_mode_getresources - get graphics configuration
065a50ed
DV		 1341 * @dev: drm device for the ioctl
1342 * @data: data pointer for the ioctl
1343 * @file_priv: drm file for the ioctl call
f453ba04 1344 *
f453ba04
DA		 1345 * Construct a set of configuration description structures and return
1346 * them to the user, including CRTC, connector and framebuffer configuration.
1347 *
1348 * Called by the user via ioctl.
1349 *
1350 * RETURNS:
1351 * Zero on success, errno on failure.
1352 */
1353int drm_mode_getresources(struct drm_device *dev, void *data,
1354 struct drm_file *file_priv)
1355{
1356 struct drm_mode_card_res *card_res = data;
1357 struct list_head *lh;
1358 struct drm_framebuffer *fb;
1359 struct drm_connector *connector;
1360 struct drm_crtc *crtc;
1361 struct drm_encoder *encoder;
1362 int ret = 0;
1363 int connector_count = 0;
1364 int crtc_count = 0;
1365 int fb_count = 0;
1366 int encoder_count = 0;
1367 int copied = 0, i;
1368 uint32_t __user *fb_id;
1369 uint32_t __user *crtc_id;
1370 uint32_t __user *connector_id;
1371 uint32_t __user *encoder_id;
1372 struct drm_mode_group *mode_group;
1373
fb3b06c8
DA		 1374 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1375 return -EINVAL;
1376
f453ba04 1377
4b096ac1 1378 mutex_lock(&file_priv->fbs_lock);
f453ba04
DA		 1379 /*
1380 * For the non-control nodes we need to limit the list of resources
1381 * by IDs in the group list for this node
1382 */
1383 list_for_each(lh, &file_priv->fbs)
1384 fb_count++;
1385
4b096ac1
DV		 1386 /* handle this in 4 parts */
1387 /* FBs */
1388 if (card_res->count_fbs >= fb_count) {
1389 copied = 0;
1390 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1391 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1392 if (put_user(fb->base.id, fb_id + copied)) {
1393 mutex_unlock(&file_priv->fbs_lock);
1394 return -EFAULT;
1395 }
1396 copied++;
1397 }
1398 }
1399 card_res->count_fbs = fb_count;
1400 mutex_unlock(&file_priv->fbs_lock);
1401
1402 drm_modeset_lock_all(dev);
f453ba04
DA		 1403 mode_group = &file_priv->master->minor->mode_group;
1404 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1405
1406 list_for_each(lh, &dev->mode_config.crtc_list)
1407 crtc_count++;
1408
1409 list_for_each(lh, &dev->mode_config.connector_list)
1410 connector_count++;
1411
1412 list_for_each(lh, &dev->mode_config.encoder_list)
1413 encoder_count++;
1414 } else {
1415
1416 crtc_count = mode_group->num_crtcs;
1417 connector_count = mode_group->num_connectors;
1418 encoder_count = mode_group->num_encoders;
1419 }
1420
1421 card_res->max_height = dev->mode_config.max_height;
1422 card_res->min_height = dev->mode_config.min_height;
1423 card_res->max_width = dev->mode_config.max_width;
1424 card_res->min_width = dev->mode_config.min_width;
1425
f453ba04
DA		 1426 /* CRTCs */
1427 if (card_res->count_crtcs >= crtc_count) {
1428 copied = 0;
1429 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1430 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1431 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1432 head) {
9440106b 1433 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1434 if (put_user(crtc->base.id, crtc_id + copied)) {
1435 ret = -EFAULT;
1436 goto out;
1437 }
1438 copied++;
1439 }
1440 } else {
1441 for (i = 0; i < mode_group->num_crtcs; i++) {
1442 if (put_user(mode_group->id_list[i],
1443 crtc_id + copied)) {
1444 ret = -EFAULT;
1445 goto out;
1446 }
1447 copied++;
1448 }
1449 }
1450 }
1451 card_res->count_crtcs = crtc_count;
1452
1453 /* Encoders */
1454 if (card_res->count_encoders >= encoder_count) {
1455 copied = 0;
1456 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1457 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1458 list_for_each_entry(encoder,
1459 &dev->mode_config.encoder_list,
1460 head) {
9440106b
JG		 1461 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1462 drm_get_encoder_name(encoder));
f453ba04
DA		 1463 if (put_user(encoder->base.id, encoder_id +
1464 copied)) {
1465 ret = -EFAULT;
1466 goto out;
1467 }
1468 copied++;
1469 }
1470 } else {
1471 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1472 if (put_user(mode_group->id_list[i],
1473 encoder_id + copied)) {
1474 ret = -EFAULT;
1475 goto out;
1476 }
1477 copied++;
1478 }
1479
1480 }
1481 }
1482 card_res->count_encoders = encoder_count;
1483
1484 /* Connectors */
1485 if (card_res->count_connectors >= connector_count) {
1486 copied = 0;
1487 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1488 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1489 list_for_each_entry(connector,
1490 &dev->mode_config.connector_list,
1491 head) {
9440106b
JG		 1492 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1493 connector->base.id,
1494 drm_get_connector_name(connector));
f453ba04
DA		 1495 if (put_user(connector->base.id,
1496 connector_id + copied)) {
1497 ret = -EFAULT;
1498 goto out;
1499 }
1500 copied++;
1501 }
1502 } else {
1503 int start = mode_group->num_crtcs +
1504 mode_group->num_encoders;
1505 for (i = start; i < start + mode_group->num_connectors; i++) {
1506 if (put_user(mode_group->id_list[i],
1507 connector_id + copied)) {
1508 ret = -EFAULT;
1509 goto out;
1510 }
1511 copied++;
1512 }
1513 }
1514 }
1515 card_res->count_connectors = connector_count;
1516
9440106b 1517 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1518 card_res->count_connectors, card_res->count_encoders);
1519
1520out:
84849903 1521 drm_modeset_unlock_all(dev);
f453ba04
DA		 1522 return ret;
1523}
1524
1525/**
1526 * drm_mode_getcrtc - get CRTC configuration
065a50ed
DV		 1527 * @dev: drm device for the ioctl
1528 * @data: data pointer for the ioctl
1529 * @file_priv: drm file for the ioctl call
f453ba04 1530 *
f453ba04
DA		 1531 * Construct a CRTC configuration structure to return to the user.
1532 *
1533 * Called by the user via ioctl.
1534 *
1535 * RETURNS:
1536 * Zero on success, errno on failure.
1537 */
1538int drm_mode_getcrtc(struct drm_device *dev,
1539 void *data, struct drm_file *file_priv)
1540{
1541 struct drm_mode_crtc *crtc_resp = data;
1542 struct drm_crtc *crtc;
1543 struct drm_mode_object *obj;
1544 int ret = 0;
1545
fb3b06c8
DA		 1546 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1547 return -EINVAL;
1548
84849903 1549 drm_modeset_lock_all(dev);
f453ba04
DA		 1550
1551 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1552 DRM_MODE_OBJECT_CRTC);
1553 if (!obj) {
1554 ret = -EINVAL;
1555 goto out;
1556 }
1557 crtc = obj_to_crtc(obj);
1558
1559 crtc_resp->x = crtc->x;
1560 crtc_resp->y = crtc->y;
1561 crtc_resp->gamma_size = crtc->gamma_size;
1562 if (crtc->fb)
1563 crtc_resp->fb_id = crtc->fb->base.id;
1564 else
1565 crtc_resp->fb_id = 0;
1566
1567 if (crtc->enabled) {
1568
1569 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1570 crtc_resp->mode_valid = 1;
1571
1572 } else {
1573 crtc_resp->mode_valid = 0;
1574 }
1575
1576out:
84849903 1577 drm_modeset_unlock_all(dev);
f453ba04
DA		 1578 return ret;
1579}
1580
1581/**
1582 * drm_mode_getconnector - get connector configuration
065a50ed
DV		 1583 * @dev: drm device for the ioctl
1584 * @data: data pointer for the ioctl
1585 * @file_priv: drm file for the ioctl call
f453ba04 1586 *
f453ba04
DA		 1587 * Construct a connector configuration structure to return to the user.
1588 *
1589 * Called by the user via ioctl.
1590 *
1591 * RETURNS:
1592 * Zero on success, errno on failure.
1593 */
1594int drm_mode_getconnector(struct drm_device *dev, void *data,
1595 struct drm_file *file_priv)
1596{
1597 struct drm_mode_get_connector *out_resp = data;
1598 struct drm_mode_object *obj;
1599 struct drm_connector *connector;
1600 struct drm_display_mode *mode;
1601 int mode_count = 0;
1602 int props_count = 0;
1603 int encoders_count = 0;
1604 int ret = 0;
1605 int copied = 0;
1606 int i;
1607 struct drm_mode_modeinfo u_mode;
1608 struct drm_mode_modeinfo __user *mode_ptr;
1609 uint32_t __user *prop_ptr;
1610 uint64_t __user *prop_values;
1611 uint32_t __user *encoder_ptr;
1612
fb3b06c8
DA		 1613 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1614 return -EINVAL;
1615
f453ba04
DA		 1616 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1617
9440106b 1618 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04 1619
7b24056b 1620 mutex_lock(&dev->mode_config.mutex);
f453ba04
DA		 1621
1622 obj = drm_mode_object_find(dev, out_resp->connector_id,
1623 DRM_MODE_OBJECT_CONNECTOR);
1624 if (!obj) {
1625 ret = -EINVAL;
1626 goto out;
1627 }
1628 connector = obj_to_connector(obj);
1629
7f88a9be 1630 props_count = connector->properties.count;
f453ba04
DA		 1631
1632 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1633 if (connector->encoder_ids[i] != 0) {
1634 encoders_count++;
1635 }
1636 }
1637
1638 if (out_resp->count_modes == 0) {
1639 connector->funcs->fill_modes(connector,
1640 dev->mode_config.max_width,
1641 dev->mode_config.max_height);
1642 }
1643
1644 /* delayed so we get modes regardless of pre-fill_modes state */
1645 list_for_each_entry(mode, &connector->modes, head)
1646 mode_count++;
1647
1648 out_resp->connector_id = connector->base.id;
1649 out_resp->connector_type = connector->connector_type;
1650 out_resp->connector_type_id = connector->connector_type_id;
1651 out_resp->mm_width = connector->display_info.width_mm;
1652 out_resp->mm_height = connector->display_info.height_mm;
1653 out_resp->subpixel = connector->display_info.subpixel_order;
1654 out_resp->connection = connector->status;
1655 if (connector->encoder)
1656 out_resp->encoder_id = connector->encoder->base.id;
1657 else
1658 out_resp->encoder_id = 0;
1659
1660 /*
1661 * This ioctl is called twice, once to determine how much space is
1662 * needed, and the 2nd time to fill it.
1663 */
1664 if ((out_resp->count_modes >= mode_count) && mode_count) {
1665 copied = 0;
81f6c7f8 1666 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04
DA		 1667 list_for_each_entry(mode, &connector->modes, head) {
1668 drm_crtc_convert_to_umode(&u_mode, mode);
1669 if (copy_to_user(mode_ptr + copied,
1670 &u_mode, sizeof(u_mode))) {
1671 ret = -EFAULT;
1672 goto out;
1673 }
1674 copied++;
1675 }
1676 }
1677 out_resp->count_modes = mode_count;
1678
1679 if ((out_resp->count_props >= props_count) && props_count) {
1680 copied = 0;
81f6c7f8
VS		 1681 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1682 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
7f88a9be
PZ		 1683 for (i = 0; i < connector->properties.count; i++) {
1684 if (put_user(connector->properties.ids[i],
1685 prop_ptr + copied)) {
1686 ret = -EFAULT;
1687 goto out;
1688 }
f453ba04 1689
7f88a9be
PZ		 1690 if (put_user(connector->properties.values[i],
1691 prop_values + copied)) {
1692 ret = -EFAULT;
1693 goto out;
f453ba04 1694 }
7f88a9be 1695 copied++;
f453ba04
DA		 1696 }
1697 }
1698 out_resp->count_props = props_count;
1699
1700 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1701 copied = 0;
81f6c7f8 1702 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1703 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1704 if (connector->encoder_ids[i] != 0) {
1705 if (put_user(connector->encoder_ids[i],
1706 encoder_ptr + copied)) {
1707 ret = -EFAULT;
1708 goto out;
1709 }
1710 copied++;
1711 }
1712 }
1713 }
1714 out_resp->count_encoders = encoders_count;
1715
1716out:
7b24056b
DV		 1717 mutex_unlock(&dev->mode_config.mutex);
1718
f453ba04
DA		 1719 return ret;
1720}
1721
1722int drm_mode_getencoder(struct drm_device *dev, void *data,
1723 struct drm_file *file_priv)
1724{
1725 struct drm_mode_get_encoder *enc_resp = data;
1726 struct drm_mode_object *obj;
1727 struct drm_encoder *encoder;
1728 int ret = 0;
1729
fb3b06c8
DA		 1730 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1731 return -EINVAL;
1732
84849903 1733 drm_modeset_lock_all(dev);
f453ba04
DA		 1734 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1735 DRM_MODE_OBJECT_ENCODER);
1736 if (!obj) {
1737 ret = -EINVAL;
1738 goto out;
1739 }
1740 encoder = obj_to_encoder(obj);
1741
1742 if (encoder->crtc)
1743 enc_resp->crtc_id = encoder->crtc->base.id;
1744 else
1745 enc_resp->crtc_id = 0;
1746 enc_resp->encoder_type = encoder->encoder_type;
1747 enc_resp->encoder_id = encoder->base.id;
1748 enc_resp->possible_crtcs = encoder->possible_crtcs;
1749 enc_resp->possible_clones = encoder->possible_clones;
1750
1751out:
84849903 1752 drm_modeset_unlock_all(dev);
f453ba04
DA		 1753 return ret;
1754}
1755
8cf5c917
JB		 1756/**
1757 * drm_mode_getplane_res - get plane info
1758 * @dev: DRM device
1759 * @data: ioctl data
1760 * @file_priv: DRM file info
1761 *
1762 * Return an plane count and set of IDs.
1763 */
1764int drm_mode_getplane_res(struct drm_device *dev, void *data,
1765 struct drm_file *file_priv)
1766{
1767 struct drm_mode_get_plane_res *plane_resp = data;
1768 struct drm_mode_config *config;
1769 struct drm_plane *plane;
1770 uint32_t __user *plane_ptr;
1771 int copied = 0, ret = 0;
1772
1773 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1774 return -EINVAL;
1775
84849903 1776 drm_modeset_lock_all(dev);
8cf5c917
JB		 1777 config = &dev->mode_config;
1778
1779 /*
1780 * This ioctl is called twice, once to determine how much space is
1781 * needed, and the 2nd time to fill it.
1782 */
1783 if (config->num_plane &&
1784 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1785 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1786
1787 list_for_each_entry(plane, &config->plane_list, head) {
1788 if (put_user(plane->base.id, plane_ptr + copied)) {
1789 ret = -EFAULT;
1790 goto out;
1791 }
1792 copied++;
1793 }
1794 }
1795 plane_resp->count_planes = config->num_plane;
1796
1797out:
84849903 1798 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1799 return ret;
1800}
1801
1802/**
1803 * drm_mode_getplane - get plane info
1804 * @dev: DRM device
1805 * @data: ioctl data
1806 * @file_priv: DRM file info
1807 *
1808 * Return plane info, including formats supported, gamma size, any
1809 * current fb, etc.
1810 */
1811int drm_mode_getplane(struct drm_device *dev, void *data,
1812 struct drm_file *file_priv)
1813{
1814 struct drm_mode_get_plane *plane_resp = data;
1815 struct drm_mode_object *obj;
1816 struct drm_plane *plane;
1817 uint32_t __user *format_ptr;
1818 int ret = 0;
1819
1820 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1821 return -EINVAL;
1822
84849903 1823 drm_modeset_lock_all(dev);
8cf5c917
JB		 1824 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1825 DRM_MODE_OBJECT_PLANE);
1826 if (!obj) {
1827 ret = -ENOENT;
1828 goto out;
1829 }
1830 plane = obj_to_plane(obj);
1831
1832 if (plane->crtc)
1833 plane_resp->crtc_id = plane->crtc->base.id;
1834 else
1835 plane_resp->crtc_id = 0;
1836
1837 if (plane->fb)
1838 plane_resp->fb_id = plane->fb->base.id;
1839 else
1840 plane_resp->fb_id = 0;
1841
1842 plane_resp->plane_id = plane->base.id;
1843 plane_resp->possible_crtcs = plane->possible_crtcs;
1844 plane_resp->gamma_size = plane->gamma_size;
1845
1846 /*
1847 * This ioctl is called twice, once to determine how much space is
1848 * needed, and the 2nd time to fill it.
1849 */
1850 if (plane->format_count &&
1851 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1852 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1853 if (copy_to_user(format_ptr,
1854 plane->format_types,
1855 sizeof(uint32_t) * plane->format_count)) {
1856 ret = -EFAULT;
1857 goto out;
1858 }
1859 }
1860 plane_resp->count_format_types = plane->format_count;
1861
1862out:
84849903 1863 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1864 return ret;
1865}
1866
1867/**
1868 * drm_mode_setplane - set up or tear down an plane
1869 * @dev: DRM device
1870 * @data: ioctl data*
065a50ed 1871 * @file_priv: DRM file info
8cf5c917
JB		 1872 *
1873 * Set plane info, including placement, fb, scaling, and other factors.
1874 * Or pass a NULL fb to disable.
1875 */
1876int drm_mode_setplane(struct drm_device *dev, void *data,
1877 struct drm_file *file_priv)
1878{
1879 struct drm_mode_set_plane *plane_req = data;
1880 struct drm_mode_object *obj;
1881 struct drm_plane *plane;
1882 struct drm_crtc *crtc;
6c2a7532 1883 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
8cf5c917 1884 int ret = 0;
42ef8789 1885 unsigned int fb_width, fb_height;
62443be6 1886 int i;
8cf5c917
JB		 1887
1888 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1889 return -EINVAL;
1890
8cf5c917
JB		 1891 /*
1892 * First, find the plane, crtc, and fb objects. If not available,
1893 * we don't bother to call the driver.
1894 */
1895 obj = drm_mode_object_find(dev, plane_req->plane_id,
1896 DRM_MODE_OBJECT_PLANE);
1897 if (!obj) {
1898 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1899 plane_req->plane_id);
6c2a7532 1900 return -ENOENT;
8cf5c917
JB		 1901 }
1902 plane = obj_to_plane(obj);
1903
1904 /* No fb means shut it down */
1905 if (!plane_req->fb_id) {
6c2a7532
DV		 1906 drm_modeset_lock_all(dev);
1907 old_fb = plane->fb;
8cf5c917 1908 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1909 plane->crtc = NULL;
1910 plane->fb = NULL;
6c2a7532 1911 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1912 goto out;
1913 }
1914
1915 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1916 DRM_MODE_OBJECT_CRTC);
1917 if (!obj) {
1918 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1919 plane_req->crtc_id);
1920 ret = -ENOENT;
1921 goto out;
1922 }
1923 crtc = obj_to_crtc(obj);
1924
786b99ed
DV		 1925 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1926 if (!fb) {
8cf5c917
JB		 1927 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1928 plane_req->fb_id);
1929 ret = -ENOENT;
1930 goto out;
1931 }
8cf5c917 1932
62443be6
VS		 1933 /* Check whether this plane supports the fb pixel format. */
1934 for (i = 0; i < plane->format_count; i++)
1935 if (fb->pixel_format == plane->format_types[i])
1936 break;
1937 if (i == plane->format_count) {
1938 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1939 ret = -EINVAL;
1940 goto out;
1941 }
1942
42ef8789
VS		 1943 fb_width = fb->width << 16;
1944 fb_height = fb->height << 16;
1945
1946 /* Make sure source coordinates are inside the fb. */
1947 if (plane_req->src_w > fb_width ||
1948 plane_req->src_x > fb_width - plane_req->src_w ||
1949 plane_req->src_h > fb_height ||
1950 plane_req->src_y > fb_height - plane_req->src_h) {
1951 DRM_DEBUG_KMS("Invalid source coordinates "
1952 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1953 plane_req->src_w >> 16,
1954 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1955 plane_req->src_h >> 16,
1956 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1957 plane_req->src_x >> 16,
1958 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1959 plane_req->src_y >> 16,
1960 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1961 ret = -ENOSPC;
1962 goto out;
1963 }
1964
687a0400
VS		 1965 /* Give drivers some help against integer overflows */
1966 if (plane_req->crtc_w > INT_MAX ||
1967 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1968 plane_req->crtc_h > INT_MAX ||
1969 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1970 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1971 plane_req->crtc_w, plane_req->crtc_h,
1972 plane_req->crtc_x, plane_req->crtc_y);
1973 ret = -ERANGE;
1974 goto out;
1975 }
1976
6c2a7532 1977 drm_modeset_lock_all(dev);
8cf5c917
JB		 1978 ret = plane->funcs->update_plane(plane, crtc, fb,
1979 plane_req->crtc_x, plane_req->crtc_y,
1980 plane_req->crtc_w, plane_req->crtc_h,
1981 plane_req->src_x, plane_req->src_y,
1982 plane_req->src_w, plane_req->src_h);
1983 if (!ret) {
6c2a7532
DV		 1984 old_fb = plane->fb;
1985 fb = NULL;
8cf5c917
JB		 1986 plane->crtc = crtc;
1987 plane->fb = fb;
1988 }
6c2a7532 1989 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1990
1991out:
6c2a7532
DV		 1992 if (fb)
1993 drm_framebuffer_unreference(fb);
1994 if (old_fb)
1995 drm_framebuffer_unreference(old_fb);
8cf5c917
JB		 1996
1997 return ret;
1998}
1999
2d13b679
DV		 2000/**
2001 * drm_mode_set_config_internal - helper to call ->set_config
2002 * @set: modeset config to set
2003 *
2004 * This is a little helper to wrap internal calls to the ->set_config driver
2005 * interface. The only thing it adds is correct refcounting dance.
2006 */
2007int drm_mode_set_config_internal(struct drm_mode_set *set)
2008{
2009 struct drm_crtc *crtc = set->crtc;
b0d12325
DV		 2010 struct drm_framebuffer *fb, *old_fb;
2011 int ret;
2012
2013 old_fb = crtc->fb;
2014 fb = set->fb;
2d13b679 2015
b0d12325
DV		 2016 ret = crtc->funcs->set_config(set);
2017 if (ret == 0) {
2018 if (old_fb)
2019 drm_framebuffer_unreference(old_fb);
2020 if (fb)
2021 drm_framebuffer_reference(fb);
2022 }
2023
2024 return ret;
2d13b679
DV		 2025}
2026EXPORT_SYMBOL(drm_mode_set_config_internal);
2027
f453ba04
DA		 2028/**
2029 * drm_mode_setcrtc - set CRTC configuration
065a50ed
DV		 2030 * @dev: drm device for the ioctl
2031 * @data: data pointer for the ioctl
2032 * @file_priv: drm file for the ioctl call
f453ba04 2033 *
f453ba04
DA		 2034 * Build a new CRTC configuration based on user request.
2035 *
2036 * Called by the user via ioctl.
2037 *
2038 * RETURNS:
2039 * Zero on success, errno on failure.
2040 */
2041int drm_mode_setcrtc(struct drm_device *dev, void *data,
2042 struct drm_file *file_priv)
2043{
2044 struct drm_mode_config *config = &dev->mode_config;
2045 struct drm_mode_crtc *crtc_req = data;
2046 struct drm_mode_object *obj;
6653cc8d 2047 struct drm_crtc *crtc;
f453ba04
DA		 2048 struct drm_connector **connector_set = NULL, *connector;
2049 struct drm_framebuffer *fb = NULL;
2050 struct drm_display_mode *mode = NULL;
2051 struct drm_mode_set set;
2052 uint32_t __user *set_connectors_ptr;
4a1b0714 2053 int ret;
f453ba04
DA		 2054 int i;
2055
fb3b06c8
DA		 2056 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2057 return -EINVAL;
2058
1d97e915
VS		 2059 /* For some reason crtc x/y offsets are signed internally. */
2060 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
2061 return -ERANGE;
2062
84849903 2063 drm_modeset_lock_all(dev);
f453ba04
DA		 2064 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
2065 DRM_MODE_OBJECT_CRTC);
2066 if (!obj) {
58367ed6 2067 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 2068 ret = -EINVAL;
2069 goto out;
2070 }
2071 crtc = obj_to_crtc(obj);
9440106b 2072 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 2073
2074 if (crtc_req->mode_valid) {
7c80e128 2075 int hdisplay, vdisplay;
f453ba04
DA		 2076 /* If we have a mode we need a framebuffer. */
2077 /* If we pass -1, set the mode with the currently bound fb */
2078 if (crtc_req->fb_id == -1) {
6653cc8d
VS		 2079 if (!crtc->fb) {
2080 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2081 ret = -EINVAL;
2082 goto out;
f453ba04 2083 }
6653cc8d 2084 fb = crtc->fb;
b0d12325
DV		 2085 /* Make refcounting symmetric with the lookup path. */
2086 drm_framebuffer_reference(fb);
f453ba04 2087 } else {
786b99ed
DV		 2088 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2089 if (!fb) {
58367ed6
ZY		 2090 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2091 crtc_req->fb_id);
f453ba04
DA		 2092 ret = -EINVAL;
2093 goto out;
2094 }
f453ba04
DA		 2095 }
2096
2097 mode = drm_mode_create(dev);
ee34ab5b
VS		 2098 if (!mode) {
2099 ret = -ENOMEM;
2100 goto out;
2101 }
2102
90367bf6
VS		 2103 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2104 if (ret) {
2105 DRM_DEBUG_KMS("Invalid mode\n");
2106 goto out;
2107 }
2108
f453ba04 2109 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
5f61bb42 2110
7c80e128
RC		 2111 hdisplay = mode->hdisplay;
2112 vdisplay = mode->vdisplay;
2113
2114 if (crtc->invert_dimensions)
2115 swap(hdisplay, vdisplay);
2116
2117 if (hdisplay > fb->width ||
2118 vdisplay > fb->height ||
2119 crtc_req->x > fb->width - hdisplay ||
2120 crtc_req->y > fb->height - vdisplay) {
2121 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2122 fb->width, fb->height,
2123 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2124 crtc->invert_dimensions ? " (inverted)" : "");
5f61bb42
VS		 2125 ret = -ENOSPC;
2126 goto out;
2127 }
f453ba04
DA		 2128 }
2129
2130 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 2131 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 2132 ret = -EINVAL;
2133 goto out;
2134 }
2135
7781de74 2136 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 2137 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 2138 crtc_req->count_connectors);
2139 ret = -EINVAL;
2140 goto out;
2141 }
2142
2143 if (crtc_req->count_connectors > 0) {
2144 u32 out_id;
2145
2146 /* Avoid unbounded kernel memory allocation */
2147 if (crtc_req->count_connectors > config->num_connector) {
2148 ret = -EINVAL;
2149 goto out;
2150 }
2151
2152 connector_set = kmalloc(crtc_req->count_connectors *
2153 sizeof(struct drm_connector *),
2154 GFP_KERNEL);
2155 if (!connector_set) {
2156 ret = -ENOMEM;
2157 goto out;
2158 }
2159
2160 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 2161 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 2162 if (get_user(out_id, &set_connectors_ptr[i])) {
2163 ret = -EFAULT;
2164 goto out;
2165 }
2166
2167 obj = drm_mode_object_find(dev, out_id,
2168 DRM_MODE_OBJECT_CONNECTOR);
2169 if (!obj) {
58367ed6
ZY		 2170 DRM_DEBUG_KMS("Connector id %d unknown\n",
2171 out_id);
f453ba04
DA		 2172 ret = -EINVAL;
2173 goto out;
2174 }
2175 connector = obj_to_connector(obj);
9440106b
JG		 2176 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2177 connector->base.id,
2178 drm_get_connector_name(connector));
f453ba04
DA		 2179
2180 connector_set[i] = connector;
2181 }
2182 }
2183
2184 set.crtc = crtc;
2185 set.x = crtc_req->x;
2186 set.y = crtc_req->y;
2187 set.mode = mode;
2188 set.connectors = connector_set;
2189 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 2190 set.fb = fb;
2d13b679 2191 ret = drm_mode_set_config_internal(&set);
f453ba04
DA		 2192
2193out:
b0d12325
DV		 2194 if (fb)
2195 drm_framebuffer_unreference(fb);
2196
f453ba04 2197 kfree(connector_set);
ee34ab5b 2198 drm_mode_destroy(dev, mode);
84849903 2199 drm_modeset_unlock_all(dev);
f453ba04
DA		 2200 return ret;
2201}
2202
2203int drm_mode_cursor_ioctl(struct drm_device *dev,
2204 void *data, struct drm_file *file_priv)
2205{
2206 struct drm_mode_cursor *req = data;
2207 struct drm_mode_object *obj;
2208 struct drm_crtc *crtc;
2209 int ret = 0;
2210
fb3b06c8
DA		 2211 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2212 return -EINVAL;
2213
7c4eaca4 2214 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
f453ba04 2215 return -EINVAL;
f453ba04 2216
e0c8463a 2217 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 2218 if (!obj) {
58367ed6 2219 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
dac35663 2220 return -EINVAL;
f453ba04
DA		 2221 }
2222 crtc = obj_to_crtc(obj);
2223
dac35663 2224 mutex_lock(&crtc->mutex);
f453ba04
DA		 2225 if (req->flags & DRM_MODE_CURSOR_BO) {
2226 if (!crtc->funcs->cursor_set) {
f453ba04
DA		 2227 ret = -ENXIO;
2228 goto out;
2229 }
2230 /* Turns off the cursor if handle is 0 */
2231 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2232 req->width, req->height);
2233 }
2234
2235 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2236 if (crtc->funcs->cursor_move) {
2237 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2238 } else {
f453ba04
DA		 2239 ret = -EFAULT;
2240 goto out;
2241 }
2242 }
2243out:
dac35663
DV		 2244 mutex_unlock(&crtc->mutex);
2245
f453ba04
DA		 2246 return ret;
2247}
2248
308e5bcb
JB		 2249/* Original addfb only supported RGB formats, so figure out which one */
2250uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2251{
2252 uint32_t fmt;
2253
2254 switch (bpp) {
2255 case 8:
04b3924d 2256 fmt = DRM_FORMAT_RGB332;
308e5bcb
JB		 2257 break;
2258 case 16:
2259 if (depth == 15)
04b3924d 2260 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 2261 else
04b3924d 2262 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 2263 break;
2264 case 24:
04b3924d 2265 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 2266 break;
2267 case 32:
2268 if (depth == 24)
04b3924d 2269 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 2270 else if (depth == 30)
04b3924d 2271 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 2272 else
04b3924d 2273 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 2274 break;
2275 default:
04b3924d
VS		 2276 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2277 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 2278 break;
2279 }
2280
2281 return fmt;
2282}
2283EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2284
f453ba04
DA		 2285/**
2286 * drm_mode_addfb - add an FB to the graphics configuration
065a50ed
DV		 2287 * @dev: drm device for the ioctl
2288 * @data: data pointer for the ioctl
2289 * @file_priv: drm file for the ioctl call
f453ba04 2290 *
f453ba04
DA		 2291 * Add a new FB to the specified CRTC, given a user request.
2292 *
2293 * Called by the user via ioctl.
2294 *
2295 * RETURNS:
2296 * Zero on success, errno on failure.
2297 */
2298int drm_mode_addfb(struct drm_device *dev,
2299 void *data, struct drm_file *file_priv)
2300{
308e5bcb
JB		 2301 struct drm_mode_fb_cmd *or = data;
2302 struct drm_mode_fb_cmd2 r = {};
2303 struct drm_mode_config *config = &dev->mode_config;
2304 struct drm_framebuffer *fb;
2305 int ret = 0;
2306
2307 /* Use new struct with format internally */
2308 r.fb_id = or->fb_id;
2309 r.width = or->width;
2310 r.height = or->height;
2311 r.pitches[0] = or->pitch;
2312 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2313 r.handles[0] = or->handle;
2314
2315 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2316 return -EINVAL;
2317
acb4b992 2318 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2319 return -EINVAL;
acb4b992
JB		 2320
2321 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2322 return -EINVAL;
308e5bcb 2323
308e5bcb
JB		 2324 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2325 if (IS_ERR(fb)) {
1aa1b11c 2326 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1
DV		 2327 drm_modeset_unlock_all(dev);
2328 return PTR_ERR(fb);
308e5bcb
JB		 2329 }
2330
4b096ac1 2331 mutex_lock(&file_priv->fbs_lock);
308e5bcb
JB		 2332 or->fb_id = fb->base.id;
2333 list_add(&fb->filp_head, &file_priv->fbs);
2334 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2335 mutex_unlock(&file_priv->fbs_lock);
4b096ac1 2336
308e5bcb
JB		 2337 return ret;
2338}
2339
cff91b62 2340static int format_check(const struct drm_mode_fb_cmd2 *r)
935b5977
VS		 2341{
2342 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2343
2344 switch (format) {
2345 case DRM_FORMAT_C8:
2346 case DRM_FORMAT_RGB332:
2347 case DRM_FORMAT_BGR233:
2348 case DRM_FORMAT_XRGB4444:
2349 case DRM_FORMAT_XBGR4444:
2350 case DRM_FORMAT_RGBX4444:
2351 case DRM_FORMAT_BGRX4444:
2352 case DRM_FORMAT_ARGB4444:
2353 case DRM_FORMAT_ABGR4444:
2354 case DRM_FORMAT_RGBA4444:
2355 case DRM_FORMAT_BGRA4444:
2356 case DRM_FORMAT_XRGB1555:
2357 case DRM_FORMAT_XBGR1555:
2358 case DRM_FORMAT_RGBX5551:
2359 case DRM_FORMAT_BGRX5551:
2360 case DRM_FORMAT_ARGB1555:
2361 case DRM_FORMAT_ABGR1555:
2362 case DRM_FORMAT_RGBA5551:
2363 case DRM_FORMAT_BGRA5551:
2364 case DRM_FORMAT_RGB565:
2365 case DRM_FORMAT_BGR565:
2366 case DRM_FORMAT_RGB888:
2367 case DRM_FORMAT_BGR888:
2368 case DRM_FORMAT_XRGB8888:
2369 case DRM_FORMAT_XBGR8888:
2370 case DRM_FORMAT_RGBX8888:
2371 case DRM_FORMAT_BGRX8888:
2372 case DRM_FORMAT_ARGB8888:
2373 case DRM_FORMAT_ABGR8888:
2374 case DRM_FORMAT_RGBA8888:
2375 case DRM_FORMAT_BGRA8888:
2376 case DRM_FORMAT_XRGB2101010:
2377 case DRM_FORMAT_XBGR2101010:
2378 case DRM_FORMAT_RGBX1010102:
2379 case DRM_FORMAT_BGRX1010102:
2380 case DRM_FORMAT_ARGB2101010:
2381 case DRM_FORMAT_ABGR2101010:
2382 case DRM_FORMAT_RGBA1010102:
2383 case DRM_FORMAT_BGRA1010102:
2384 case DRM_FORMAT_YUYV:
2385 case DRM_FORMAT_YVYU:
2386 case DRM_FORMAT_UYVY:
2387 case DRM_FORMAT_VYUY:
2388 case DRM_FORMAT_AYUV:
2389 case DRM_FORMAT_NV12:
2390 case DRM_FORMAT_NV21:
2391 case DRM_FORMAT_NV16:
2392 case DRM_FORMAT_NV61:
ba623f6a
LP		 2393 case DRM_FORMAT_NV24:
2394 case DRM_FORMAT_NV42:
935b5977
VS		 2395 case DRM_FORMAT_YUV410:
2396 case DRM_FORMAT_YVU410:
2397 case DRM_FORMAT_YUV411:
2398 case DRM_FORMAT_YVU411:
2399 case DRM_FORMAT_YUV420:
2400 case DRM_FORMAT_YVU420:
2401 case DRM_FORMAT_YUV422:
2402 case DRM_FORMAT_YVU422:
2403 case DRM_FORMAT_YUV444:
2404 case DRM_FORMAT_YVU444:
2405 return 0;
2406 default:
2407 return -EINVAL;
2408 }
2409}
2410
cff91b62 2411static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
d1b45d5f
VS		 2412{
2413 int ret, hsub, vsub, num_planes, i;
2414
2415 ret = format_check(r);
2416 if (ret) {
1aa1b11c 2417 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format);
d1b45d5f
VS		 2418 return ret;
2419 }
2420
2421 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2422 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2423 num_planes = drm_format_num_planes(r->pixel_format);
2424
2425 if (r->width == 0 || r->width % hsub) {
1aa1b11c 2426 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
d1b45d5f
VS		 2427 return -EINVAL;
2428 }
2429
2430 if (r->height == 0 || r->height % vsub) {
1aa1b11c 2431 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
d1b45d5f
VS		 2432 return -EINVAL;
2433 }
2434
2435 for (i = 0; i < num_planes; i++) {
2436 unsigned int width = r->width / (i != 0 ? hsub : 1);
b180b5d1
VS		 2437 unsigned int height = r->height / (i != 0 ? vsub : 1);
2438 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
d1b45d5f
VS		 2439
2440 if (!r->handles[i]) {
1aa1b11c 2441 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
d1b45d5f
VS		 2442 return -EINVAL;
2443 }
2444
b180b5d1
VS		 2445 if ((uint64_t) width * cpp > UINT_MAX)
2446 return -ERANGE;
2447
2448 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2449 return -ERANGE;
2450
2451 if (r->pitches[i] < width * cpp) {
1aa1b11c 2452 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
d1b45d5f
VS		 2453 return -EINVAL;
2454 }
2455 }
2456
2457 return 0;
2458}
2459
308e5bcb
JB		 2460/**
2461 * drm_mode_addfb2 - add an FB to the graphics configuration
065a50ed
DV		 2462 * @dev: drm device for the ioctl
2463 * @data: data pointer for the ioctl
2464 * @file_priv: drm file for the ioctl call
308e5bcb 2465 *
308e5bcb
JB		 2466 * Add a new FB to the specified CRTC, given a user request with format.
2467 *
2468 * Called by the user via ioctl.
2469 *
2470 * RETURNS:
2471 * Zero on success, errno on failure.
2472 */
2473int drm_mode_addfb2(struct drm_device *dev,
2474 void *data, struct drm_file *file_priv)
2475{
2476 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2477 struct drm_mode_config *config = &dev->mode_config;
2478 struct drm_framebuffer *fb;
4a1b0714 2479 int ret;
f453ba04 2480
fb3b06c8
DA		 2481 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2482 return -EINVAL;
2483
e3cc3520
VS		 2484 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2485 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2486 return -EINVAL;
2487 }
2488
f453ba04 2489 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1aa1b11c 2490 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
8cf5c917 2491 r->width, config->min_width, config->max_width);
f453ba04
DA		 2492 return -EINVAL;
2493 }
2494 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1aa1b11c 2495 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
8cf5c917 2496 r->height, config->min_height, config->max_height);
f453ba04
DA		 2497 return -EINVAL;
2498 }
2499
d1b45d5f
VS		 2500 ret = framebuffer_check(r);
2501 if (ret)
935b5977 2502 return ret;
935b5977 2503
f453ba04 2504 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2505 if (IS_ERR(fb)) {
1aa1b11c 2506 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1
DV		 2507 drm_modeset_unlock_all(dev);
2508 return PTR_ERR(fb);
f453ba04
DA		 2509 }
2510
4b096ac1 2511 mutex_lock(&file_priv->fbs_lock);
e0c8463a 2512 r->fb_id = fb->base.id;
f453ba04 2513 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2514 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2515 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2516
4b096ac1 2517
f453ba04
DA		 2518 return ret;
2519}
2520
2521/**
2522 * drm_mode_rmfb - remove an FB from the configuration
065a50ed
DV		 2523 * @dev: drm device for the ioctl
2524 * @data: data pointer for the ioctl
2525 * @file_priv: drm file for the ioctl call
f453ba04 2526 *
f453ba04
DA		 2527 * Remove the FB specified by the user.
2528 *
2529 * Called by the user via ioctl.
2530 *
2531 * RETURNS:
2532 * Zero on success, errno on failure.
2533 */
2534int drm_mode_rmfb(struct drm_device *dev,
2535 void *data, struct drm_file *file_priv)
2536{
f453ba04
DA		 2537 struct drm_framebuffer *fb = NULL;
2538 struct drm_framebuffer *fbl = NULL;
2539 uint32_t *id = data;
f453ba04
DA		 2540 int found = 0;
2541
fb3b06c8
DA		 2542 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2543 return -EINVAL;
2544
4b096ac1 2545 mutex_lock(&file_priv->fbs_lock);
2b677e8c
DV		 2546 mutex_lock(&dev->mode_config.fb_lock);
2547 fb = __drm_framebuffer_lookup(dev, *id);
2548 if (!fb)
2549 goto fail_lookup;
2550
f453ba04
DA		 2551 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2552 if (fb == fbl)
2553 found = 1;
2b677e8c
DV		 2554 if (!found)
2555 goto fail_lookup;
2556
2557 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2558 __drm_framebuffer_unregister(dev, fb);
f453ba04 2559
4b096ac1 2560 list_del_init(&fb->filp_head);
2b677e8c 2561 mutex_unlock(&dev->mode_config.fb_lock);
4b096ac1 2562 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2563
4b096ac1 2564 drm_framebuffer_remove(fb);
4b096ac1 2565
2b677e8c
DV		 2566 return 0;
2567
2568fail_lookup:
2569 mutex_unlock(&dev->mode_config.fb_lock);
2570 mutex_unlock(&file_priv->fbs_lock);
2571
2572 return -EINVAL;
f453ba04
DA		 2573}
2574
2575/**
2576 * drm_mode_getfb - get FB info
065a50ed
DV		 2577 * @dev: drm device for the ioctl
2578 * @data: data pointer for the ioctl
2579 * @file_priv: drm file for the ioctl call
f453ba04 2580 *
f453ba04
DA		 2581 * Lookup the FB given its ID and return info about it.
2582 *
2583 * Called by the user via ioctl.
2584 *
2585 * RETURNS:
2586 * Zero on success, errno on failure.
2587 */
2588int drm_mode_getfb(struct drm_device *dev,
2589 void *data, struct drm_file *file_priv)
2590{
2591 struct drm_mode_fb_cmd *r = data;
f453ba04 2592 struct drm_framebuffer *fb;
58c0dca1 2593 int ret;
f453ba04 2594
fb3b06c8
DA		 2595 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2596 return -EINVAL;
2597
786b99ed 2598 fb = drm_framebuffer_lookup(dev, r->fb_id);
58c0dca1
DV		 2599 if (!fb)
2600 return -EINVAL;
f453ba04
DA		 2601
2602 r->height = fb->height;
2603 r->width = fb->width;
2604 r->depth = fb->depth;
2605 r->bpp = fb->bits_per_pixel;
01f2c773 2606 r->pitch = fb->pitches[0];
af26ef3b
DV		 2607 if (fb->funcs->create_handle)
2608 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2609 else
2610 ret = -ENODEV;
f453ba04 2611
58c0dca1
DV		 2612 drm_framebuffer_unreference(fb);
2613
f453ba04
DA		 2614 return ret;
2615}
2616
884840aa
JB		 2617int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2618 void *data, struct drm_file *file_priv)
2619{
2620 struct drm_clip_rect __user *clips_ptr;
2621 struct drm_clip_rect *clips = NULL;
2622 struct drm_mode_fb_dirty_cmd *r = data;
884840aa
JB		 2623 struct drm_framebuffer *fb;
2624 unsigned flags;
2625 int num_clips;
4a1b0714 2626 int ret;
884840aa 2627
fb3b06c8
DA		 2628 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2629 return -EINVAL;
2630
786b99ed 2631 fb = drm_framebuffer_lookup(dev, r->fb_id);
4ccf097f
DV		 2632 if (!fb)
2633 return -EINVAL;
884840aa
JB		 2634
2635 num_clips = r->num_clips;
81f6c7f8 2636 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2637
2638 if (!num_clips != !clips_ptr) {
2639 ret = -EINVAL;
2640 goto out_err1;
2641 }
2642
2643 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2644
2645 /* If userspace annotates copy, clips must come in pairs */
2646 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2647 ret = -EINVAL;
2648 goto out_err1;
2649 }
2650
2651 if (num_clips && clips_ptr) {
a5cd3351
XW		 2652 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2653 ret = -EINVAL;
2654 goto out_err1;
2655 }
884840aa
JB		 2656 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2657 if (!clips) {
2658 ret = -ENOMEM;
2659 goto out_err1;
2660 }
2661
2662 ret = copy_from_user(clips, clips_ptr,
2663 num_clips * sizeof(*clips));
e902a358
DC		 2664 if (ret) {
2665 ret = -EFAULT;
884840aa 2666 goto out_err2;
e902a358 2667 }
884840aa
JB		 2668 }
2669
2670 if (fb->funcs->dirty) {
4ccf097f 2671 drm_modeset_lock_all(dev);
02b00162
TH		 2672 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2673 clips, num_clips);
4ccf097f 2674 drm_modeset_unlock_all(dev);
884840aa
JB		 2675 } else {
2676 ret = -ENOSYS;
884840aa
JB		 2677 }
2678
2679out_err2:
2680 kfree(clips);
2681out_err1:
4ccf097f
DV		 2682 drm_framebuffer_unreference(fb);
2683
884840aa
JB		 2684 return ret;
2685}
2686
2687
f453ba04
DA		 2688/**
2689 * drm_fb_release - remove and free the FBs on this file
065a50ed 2690 * @priv: drm file for the ioctl
f453ba04 2691 *
f453ba04
DA		 2692 * Destroy all the FBs associated with @filp.
2693 *
2694 * Called by the user via ioctl.
2695 *
2696 * RETURNS:
2697 * Zero on success, errno on failure.
2698 */
ea39f835 2699void drm_fb_release(struct drm_file *priv)
f453ba04 2700{
f453ba04
DA		 2701 struct drm_device *dev = priv->minor->dev;
2702 struct drm_framebuffer *fb, *tfb;
2703
4b096ac1 2704 mutex_lock(&priv->fbs_lock);
f453ba04 2705 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2b677e8c
DV		 2706
2707 mutex_lock(&dev->mode_config.fb_lock);
2708 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2709 __drm_framebuffer_unregister(dev, fb);
2710 mutex_unlock(&dev->mode_config.fb_lock);
2711
4b096ac1 2712 list_del_init(&fb->filp_head);
2b677e8c
DV		 2713
2714 /* This will also drop the fpriv->fbs reference. */
f7eff60e 2715 drm_framebuffer_remove(fb);
f453ba04 2716 }
4b096ac1 2717 mutex_unlock(&priv->fbs_lock);
f453ba04
DA		 2718}
2719
2720/**
2721 * drm_mode_attachmode - add a mode to the user mode list
2722 * @dev: DRM device
2723 * @connector: connector to add the mode to
2724 * @mode: mode to add
2725 *
2726 * Add @mode to @connector's user mode list.
2727 */
1dd6c8bd
VS		 2728static void drm_mode_attachmode(struct drm_device *dev,
2729 struct drm_connector *connector,
2730 struct drm_display_mode *mode)
f453ba04 2731{
f453ba04 2732 list_add_tail(&mode->head, &connector->user_modes);
f453ba04
DA		 2733}
2734
2735int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
ac235daf 2736 const struct drm_display_mode *mode)
f453ba04
DA		 2737{
2738 struct drm_connector *connector;
ac235daf
VS		 2739 int ret = 0;
2740 struct drm_display_mode *dup_mode, *next;
2741 LIST_HEAD(list);
2742
f453ba04
DA		 2743 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2744 if (!connector->encoder)
ac235daf 2745 continue;
f453ba04 2746 if (connector->encoder->crtc == crtc) {
ac235daf
VS		 2747 dup_mode = drm_mode_duplicate(dev, mode);
2748 if (!dup_mode) {
2749 ret = -ENOMEM;
2750 goto out;
2751 }
2752 list_add_tail(&dup_mode->head, &list);
f453ba04
DA		 2753 }
2754 }
ac235daf
VS		 2755
2756 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2757 if (!connector->encoder)
2758 continue;
2759 if (connector->encoder->crtc == crtc)
2760 list_move_tail(list.next, &connector->user_modes);
2761 }
2762
2763 WARN_ON(!list_empty(&list));
2764
2765 out:
2766 list_for_each_entry_safe(dup_mode, next, &list, head)
2767 drm_mode_destroy(dev, dup_mode);
2768
2769 return ret;
f453ba04
DA		 2770}
2771EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2772
2773static int drm_mode_detachmode(struct drm_device *dev,
2774 struct drm_connector *connector,
2775 struct drm_display_mode *mode)
2776{
2777 int found = 0;
2778 int ret = 0;
2779 struct drm_display_mode *match_mode, *t;
2780
2781 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2782 if (drm_mode_equal(match_mode, mode)) {
2783 list_del(&match_mode->head);
2784 drm_mode_destroy(dev, match_mode);
2785 found = 1;
2786 break;
2787 }
2788 }
2789
2790 if (!found)
2791 ret = -EINVAL;
2792
2793 return ret;
2794}
2795
2796int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2797{
2798 struct drm_connector *connector;
2799
2800 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2801 drm_mode_detachmode(dev, connector, mode);
2802 }
2803 return 0;
2804}
2805EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2806
2807/**
2808 * drm_fb_attachmode - Attach a user mode to an connector
065a50ed
DV		 2809 * @dev: drm device for the ioctl
2810 * @data: data pointer for the ioctl
2811 * @file_priv: drm file for the ioctl call
f453ba04
DA		 2812 *
2813 * This attaches a user specified mode to an connector.
2814 * Called by the user via ioctl.
2815 *
2816 * RETURNS:
2817 * Zero on success, errno on failure.
2818 */
2819int drm_mode_attachmode_ioctl(struct drm_device *dev,
2820 void *data, struct drm_file *file_priv)
2821{
2822 struct drm_mode_mode_cmd *mode_cmd = data;
2823 struct drm_connector *connector;
2824 struct drm_display_mode *mode;
2825 struct drm_mode_object *obj;
2826 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
4a1b0714 2827 int ret;
f453ba04 2828
fb3b06c8
DA		 2829 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2830 return -EINVAL;
2831
84849903 2832 drm_modeset_lock_all(dev);
f453ba04
DA		 2833
2834 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2835 if (!obj) {
2836 ret = -EINVAL;
2837 goto out;
2838 }
2839 connector = obj_to_connector(obj);
2840
2841 mode = drm_mode_create(dev);
2842 if (!mode) {
2843 ret = -ENOMEM;
2844 goto out;
2845 }
2846
90367bf6
VS		 2847 ret = drm_crtc_convert_umode(mode, umode);
2848 if (ret) {
2849 DRM_DEBUG_KMS("Invalid mode\n");
2850 drm_mode_destroy(dev, mode);
2851 goto out;
2852 }
f453ba04 2853
1dd6c8bd 2854 drm_mode_attachmode(dev, connector, mode);
f453ba04 2855out:
84849903 2856 drm_modeset_unlock_all(dev);
f453ba04
DA		 2857 return ret;
2858}
2859
2860
2861/**
2862 * drm_fb_detachmode - Detach a user specified mode from an connector
065a50ed
DV		 2863 * @dev: drm device for the ioctl
2864 * @data: data pointer for the ioctl
2865 * @file_priv: drm file for the ioctl call
f453ba04
DA		 2866 *
2867 * Called by the user via ioctl.
2868 *
2869 * RETURNS:
2870 * Zero on success, errno on failure.
2871 */
2872int drm_mode_detachmode_ioctl(struct drm_device *dev,
2873 void *data, struct drm_file *file_priv)
2874{
2875 struct drm_mode_object *obj;
2876 struct drm_mode_mode_cmd *mode_cmd = data;
2877 struct drm_connector *connector;
2878 struct drm_display_mode mode;
2879 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
4a1b0714 2880 int ret;
f453ba04 2881
fb3b06c8
DA		 2882 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2883 return -EINVAL;
2884
84849903 2885 drm_modeset_lock_all(dev);
f453ba04
DA		 2886
2887 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2888 if (!obj) {
2889 ret = -EINVAL;
2890 goto out;
2891 }
2892 connector = obj_to_connector(obj);
2893
90367bf6
VS		 2894 ret = drm_crtc_convert_umode(&mode, umode);
2895 if (ret) {
2896 DRM_DEBUG_KMS("Invalid mode\n");
2897 goto out;
2898 }
2899
f453ba04
DA		 2900 ret = drm_mode_detachmode(dev, connector, &mode);
2901out:
84849903 2902 drm_modeset_unlock_all(dev);
f453ba04
DA		 2903 return ret;
2904}
2905
2906struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2907 const char *name, int num_values)
2908{
2909 struct drm_property *property = NULL;
6bfc56aa 2910 int ret;
f453ba04
DA		 2911
2912 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2913 if (!property)
2914 return NULL;
2915
2916 if (num_values) {
2917 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2918 if (!property->values)
2919 goto fail;
2920 }
2921
6bfc56aa
VS		 2922 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2923 if (ret)
2924 goto fail;
2925
f453ba04
DA		 2926 property->flags = flags;
2927 property->num_values = num_values;
2928 INIT_LIST_HEAD(&property->enum_blob_list);
2929
471dd2ef 2930 if (name) {
f453ba04 2931 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2932 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2933 }
f453ba04
DA		 2934
2935 list_add_tail(&property->head, &dev->mode_config.property_list);
2936 return property;
2937fail:
6bfc56aa 2938 kfree(property->values);
f453ba04
DA		 2939 kfree(property);
2940 return NULL;
2941}
2942EXPORT_SYMBOL(drm_property_create);
2943
4a67d391
SH		 2944struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2945 const char *name,
2946 const struct drm_prop_enum_list *props,
2947 int num_values)
2948{
2949 struct drm_property *property;
2950 int i, ret;
2951
2952 flags |= DRM_MODE_PROP_ENUM;
2953
2954 property = drm_property_create(dev, flags, name, num_values);
2955 if (!property)
2956 return NULL;
2957
2958 for (i = 0; i < num_values; i++) {
2959 ret = drm_property_add_enum(property, i,
2960 props[i].type,
2961 props[i].name);
2962 if (ret) {
2963 drm_property_destroy(dev, property);
2964 return NULL;
2965 }
2966 }
2967
2968 return property;
2969}
2970EXPORT_SYMBOL(drm_property_create_enum);
2971
49e27545
RC		 2972struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2973 int flags, const char *name,
2974 const struct drm_prop_enum_list *props,
2975 int num_values)
2976{
2977 struct drm_property *property;
2978 int i, ret;
2979
2980 flags |= DRM_MODE_PROP_BITMASK;
2981
2982 property = drm_property_create(dev, flags, name, num_values);
2983 if (!property)
2984 return NULL;
2985
2986 for (i = 0; i < num_values; i++) {
2987 ret = drm_property_add_enum(property, i,
2988 props[i].type,
2989 props[i].name);
2990 if (ret) {
2991 drm_property_destroy(dev, property);
2992 return NULL;
2993 }
2994 }
2995
2996 return property;
2997}
2998EXPORT_SYMBOL(drm_property_create_bitmask);
2999
d9bc3c02
SH		 3000struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
3001 const char *name,
3002 uint64_t min, uint64_t max)
3003{
3004 struct drm_property *property;
3005
3006 flags |= DRM_MODE_PROP_RANGE;
3007
3008 property = drm_property_create(dev, flags, name, 2);
3009 if (!property)
3010 return NULL;
3011
3012 property->values[0] = min;
3013 property->values[1] = max;
3014
3015 return property;
3016}
3017EXPORT_SYMBOL(drm_property_create_range);
3018
f453ba04
DA		 3019int drm_property_add_enum(struct drm_property *property, int index,
3020 uint64_t value, const char *name)
3021{
3022 struct drm_property_enum *prop_enum;
3023
49e27545
RC		 3024 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
3025 return -EINVAL;
3026
3027 /*
3028 * Bitmask enum properties have the additional constraint of values
3029 * from 0 to 63
3030 */
3031 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
f453ba04
DA		 3032 return -EINVAL;
3033
3034 if (!list_empty(&property->enum_blob_list)) {
3035 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3036 if (prop_enum->value == value) {
3037 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
3038 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
3039 return 0;
3040 }
3041 }
3042 }
3043
3044 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
3045 if (!prop_enum)
3046 return -ENOMEM;
3047
3048 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
3049 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
3050 prop_enum->value = value;
3051
3052 property->values[index] = value;
3053 list_add_tail(&prop_enum->head, &property->enum_blob_list);
3054 return 0;
3055}
3056EXPORT_SYMBOL(drm_property_add_enum);
3057
3058void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
3059{
3060 struct drm_property_enum *prop_enum, *pt;
3061
3062 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
3063 list_del(&prop_enum->head);
3064 kfree(prop_enum);
3065 }
3066
3067 if (property->num_values)
3068 kfree(property->values);
3069 drm_mode_object_put(dev, &property->base);
3070 list_del(&property->head);
3071 kfree(property);
3072}
3073EXPORT_SYMBOL(drm_property_destroy);
3074
c543188a
PZ		 3075void drm_object_attach_property(struct drm_mode_object *obj,
3076 struct drm_property *property,
3077 uint64_t init_val)
3078{
7f88a9be 3079 int count = obj->properties->count;
c543188a 3080
7f88a9be
PZ		 3081 if (count == DRM_OBJECT_MAX_PROPERTY) {
3082 WARN(1, "Failed to attach object property (type: 0x%x). Please "
3083 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
3084 "you see this message on the same object type.\n",
3085 obj->type);
3086 return;
c543188a
PZ		 3087 }
3088
7f88a9be
PZ		 3089 obj->properties->ids[count] = property->base.id;
3090 obj->properties->values[count] = init_val;
3091 obj->properties->count++;
c543188a
PZ		 3092}
3093EXPORT_SYMBOL(drm_object_attach_property);
3094
3095int drm_object_property_set_value(struct drm_mode_object *obj,
3096 struct drm_property *property, uint64_t val)
3097{
3098 int i;
3099
7f88a9be 3100 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 3101 if (obj->properties->ids[i] == property->base.id) {
3102 obj->properties->values[i] = val;
3103 return 0;
3104 }
3105 }
3106
3107 return -EINVAL;
3108}
3109EXPORT_SYMBOL(drm_object_property_set_value);
3110
3111int drm_object_property_get_value(struct drm_mode_object *obj,
3112 struct drm_property *property, uint64_t *val)
3113{
3114 int i;
3115
7f88a9be 3116 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 3117 if (obj->properties->ids[i] == property->base.id) {
3118 *val = obj->properties->values[i];
3119 return 0;
3120 }
3121 }
3122
3123 return -EINVAL;
3124}
3125EXPORT_SYMBOL(drm_object_property_get_value);
3126
f453ba04
DA		 3127int drm_mode_getproperty_ioctl(struct drm_device *dev,
3128 void *data, struct drm_file *file_priv)
3129{
3130 struct drm_mode_object *obj;
3131 struct drm_mode_get_property *out_resp = data;
3132 struct drm_property *property;
3133 int enum_count = 0;
3134 int blob_count = 0;
3135 int value_count = 0;
3136 int ret = 0, i;
3137 int copied;
3138 struct drm_property_enum *prop_enum;
3139 struct drm_mode_property_enum __user *enum_ptr;
3140 struct drm_property_blob *prop_blob;
81f6c7f8 3141 uint32_t __user *blob_id_ptr;
f453ba04
DA		 3142 uint64_t __user *values_ptr;
3143 uint32_t __user *blob_length_ptr;
3144
fb3b06c8
DA		 3145 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3146 return -EINVAL;
3147
84849903 3148 drm_modeset_lock_all(dev);
f453ba04
DA		 3149 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
3150 if (!obj) {
3151 ret = -EINVAL;
3152 goto done;
3153 }
3154 property = obj_to_property(obj);
3155
49e27545 3156 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3157 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
3158 enum_count++;
3159 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3160 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
3161 blob_count++;
3162 }
3163
3164 value_count = property->num_values;
3165
3166 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
3167 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
3168 out_resp->flags = property->flags;
3169
3170 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 3171 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3172 for (i = 0; i < value_count; i++) {
3173 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
3174 ret = -EFAULT;
3175 goto done;
3176 }
3177 }
3178 }
3179 out_resp->count_values = value_count;
3180
49e27545 3181 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 3182 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
3183 copied = 0;
81f6c7f8 3184 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 3185 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
3186
3187 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
3188 ret = -EFAULT;
3189 goto done;
3190 }
3191
3192 if (copy_to_user(&enum_ptr[copied].name,
3193 &prop_enum->name, DRM_PROP_NAME_LEN)) {
3194 ret = -EFAULT;
3195 goto done;
3196 }
3197 copied++;
3198 }
3199 }
3200 out_resp->count_enum_blobs = enum_count;
3201 }
3202
3203 if (property->flags & DRM_MODE_PROP_BLOB) {
3204 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3205 copied = 0;
81f6c7f8
VS		 3206 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3207 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3208
3209 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3210 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3211 ret = -EFAULT;
3212 goto done;
3213 }
3214
3215 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3216 ret = -EFAULT;
3217 goto done;
3218 }
3219
3220 copied++;
3221 }
3222 }
3223 out_resp->count_enum_blobs = blob_count;
3224 }
3225done:
84849903 3226 drm_modeset_unlock_all(dev);
f453ba04
DA		 3227 return ret;
3228}
3229
3230static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3231 void *data)
3232{
3233 struct drm_property_blob *blob;
6bfc56aa 3234 int ret;
f453ba04
DA		 3235
3236 if (!length || !data)
3237 return NULL;
3238
3239 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3240 if (!blob)
3241 return NULL;
3242
6bfc56aa
VS		 3243 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3244 if (ret) {
3245 kfree(blob);
3246 return NULL;
3247 }
3248
f453ba04
DA		 3249 blob->length = length;
3250
3251 memcpy(blob->data, data, length);
3252
f453ba04
DA		 3253 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3254 return blob;
3255}
3256
3257static void drm_property_destroy_blob(struct drm_device *dev,
3258 struct drm_property_blob *blob)
3259{
3260 drm_mode_object_put(dev, &blob->base);
3261 list_del(&blob->head);
3262 kfree(blob);
3263}
3264
3265int drm_mode_getblob_ioctl(struct drm_device *dev,
3266 void *data, struct drm_file *file_priv)
3267{
3268 struct drm_mode_object *obj;
3269 struct drm_mode_get_blob *out_resp = data;
3270 struct drm_property_blob *blob;
3271 int ret = 0;
81f6c7f8 3272 void __user *blob_ptr;
f453ba04 3273
fb3b06c8
DA		 3274 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3275 return -EINVAL;
3276
84849903 3277 drm_modeset_lock_all(dev);
f453ba04
DA		 3278 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3279 if (!obj) {
3280 ret = -EINVAL;
3281 goto done;
3282 }
3283 blob = obj_to_blob(obj);
3284
3285 if (out_resp->length == blob->length) {
81f6c7f8 3286 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 3287 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3288 ret = -EFAULT;
3289 goto done;
3290 }
3291 }
3292 out_resp->length = blob->length;
3293
3294done:
84849903 3295 drm_modeset_unlock_all(dev);
f453ba04
DA		 3296 return ret;
3297}
3298
3299int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3300 struct edid *edid)
3301{
3302 struct drm_device *dev = connector->dev;
4a1b0714 3303 int ret, size;
f453ba04
DA		 3304
3305 if (connector->edid_blob_ptr)
3306 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3307
3308 /* Delete edid, when there is none. */
3309 if (!edid) {
3310 connector->edid_blob_ptr = NULL;
58495563 3311 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
f453ba04
DA		 3312 return ret;
3313 }
3314
7466f4cc
AJ		 3315 size = EDID_LENGTH * (1 + edid->extensions);
3316 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3317 size, edid);
e655d122
SK		 3318 if (!connector->edid_blob_ptr)
3319 return -EINVAL;
f453ba04 3320
58495563 3321 ret = drm_object_property_set_value(&connector->base,
f453ba04
DA		 3322 dev->mode_config.edid_property,
3323 connector->edid_blob_ptr->base.id);
3324
3325 return ret;
3326}
3327EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3328
26a34815 3329static bool drm_property_change_is_valid(struct drm_property *property,
592c20ee 3330 uint64_t value)
26a34815
PZ		 3331{
3332 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3333 return false;
3334 if (property->flags & DRM_MODE_PROP_RANGE) {
3335 if (value < property->values[0] || value > property->values[1])
3336 return false;
3337 return true;
49e27545
RC		 3338 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3339 int i;
592c20ee 3340 uint64_t valid_mask = 0;
49e27545
RC		 3341 for (i = 0; i < property->num_values; i++)
3342 valid_mask |= (1ULL << property->values[i]);
3343 return !(value & ~valid_mask);
c4a56750
VS		 3344 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3345 /* Only the driver knows */
3346 return true;
26a34815
PZ		 3347 } else {
3348 int i;
3349 for (i = 0; i < property->num_values; i++)
3350 if (property->values[i] == value)
3351 return true;
3352 return false;
3353 }
3354}
3355
f453ba04
DA		 3356int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3357 void *data, struct drm_file *file_priv)
3358{
0057d8dd
PZ		 3359 struct drm_mode_connector_set_property *conn_set_prop = data;
3360 struct drm_mode_obj_set_property obj_set_prop = {
3361 .value = conn_set_prop->value,
3362 .prop_id = conn_set_prop->prop_id,
3363 .obj_id = conn_set_prop->connector_id,
3364 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3365 };
fb3b06c8 3366
0057d8dd
PZ		 3367 /* It does all the locking and checking we need */
3368 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
f453ba04
DA		 3369}
3370
c543188a
PZ		 3371static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3372 struct drm_property *property,
3373 uint64_t value)
3374{
3375 int ret = -EINVAL;
3376 struct drm_connector *connector = obj_to_connector(obj);
3377
3378 /* Do DPMS ourselves */
3379 if (property == connector->dev->mode_config.dpms_property) {
3380 if (connector->funcs->dpms)
3381 (*connector->funcs->dpms)(connector, (int)value);
3382 ret = 0;
3383 } else if (connector->funcs->set_property)
3384 ret = connector->funcs->set_property(connector, property, value);
3385
3386 /* store the property value if successful */
3387 if (!ret)
58495563 3388 drm_object_property_set_value(&connector->base, property, value);
c543188a
PZ		 3389 return ret;
3390}
3391
bffd9de0
PZ		 3392static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3393 struct drm_property *property,
3394 uint64_t value)
3395{
3396 int ret = -EINVAL;
3397 struct drm_crtc *crtc = obj_to_crtc(obj);
3398
3399 if (crtc->funcs->set_property)
3400 ret = crtc->funcs->set_property(crtc, property, value);
3401 if (!ret)
3402 drm_object_property_set_value(obj, property, value);
3403
3404 return ret;
3405}
3406
4d93914a
RC		 3407static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3408 struct drm_property *property,
3409 uint64_t value)
3410{
3411 int ret = -EINVAL;
3412 struct drm_plane *plane = obj_to_plane(obj);
3413
3414 if (plane->funcs->set_property)
3415 ret = plane->funcs->set_property(plane, property, value);
3416 if (!ret)
3417 drm_object_property_set_value(obj, property, value);
3418
3419 return ret;
3420}
3421
c543188a
PZ		 3422int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3423 struct drm_file *file_priv)
3424{
3425 struct drm_mode_obj_get_properties *arg = data;
3426 struct drm_mode_object *obj;
3427 int ret = 0;
3428 int i;
3429 int copied = 0;
3430 int props_count = 0;
3431 uint32_t __user *props_ptr;
3432 uint64_t __user *prop_values_ptr;
3433
3434 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3435 return -EINVAL;
3436
84849903 3437 drm_modeset_lock_all(dev);
c543188a
PZ		 3438
3439 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3440 if (!obj) {
3441 ret = -EINVAL;
3442 goto out;
3443 }
3444 if (!obj->properties) {
3445 ret = -EINVAL;
3446 goto out;
3447 }
3448
7f88a9be 3449 props_count = obj->properties->count;
c543188a
PZ		 3450
3451 /* This ioctl is called twice, once to determine how much space is
3452 * needed, and the 2nd time to fill it. */
3453 if ((arg->count_props >= props_count) && props_count) {
3454 copied = 0;
3455 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3456 prop_values_ptr = (uint64_t __user *)(unsigned long)
3457 (arg->prop_values_ptr);
3458 for (i = 0; i < props_count; i++) {
3459 if (put_user(obj->properties->ids[i],
3460 props_ptr + copied)) {
3461 ret = -EFAULT;
3462 goto out;
3463 }
3464 if (put_user(obj->properties->values[i],
3465 prop_values_ptr + copied)) {
3466 ret = -EFAULT;
3467 goto out;
3468 }
3469 copied++;
3470 }
3471 }
3472 arg->count_props = props_count;
3473out:
84849903 3474 drm_modeset_unlock_all(dev);
c543188a
PZ		 3475 return ret;
3476}
3477
3478int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3479 struct drm_file *file_priv)
3480{
3481 struct drm_mode_obj_set_property *arg = data;
3482 struct drm_mode_object *arg_obj;
3483 struct drm_mode_object *prop_obj;
3484 struct drm_property *property;
3485 int ret = -EINVAL;
3486 int i;
3487
3488 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3489 return -EINVAL;
3490
84849903 3491 drm_modeset_lock_all(dev);
c543188a
PZ		 3492
3493 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3494 if (!arg_obj)
3495 goto out;
3496 if (!arg_obj->properties)
3497 goto out;
3498
7f88a9be 3499 for (i = 0; i < arg_obj->properties->count; i++)
c543188a
PZ		 3500 if (arg_obj->properties->ids[i] == arg->prop_id)
3501 break;
3502
7f88a9be 3503 if (i == arg_obj->properties->count)
c543188a
PZ		 3504 goto out;
3505
3506 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3507 DRM_MODE_OBJECT_PROPERTY);
3508 if (!prop_obj)
3509 goto out;
3510 property = obj_to_property(prop_obj);
3511
3512 if (!drm_property_change_is_valid(property, arg->value))
3513 goto out;
3514
3515 switch (arg_obj->type) {
3516 case DRM_MODE_OBJECT_CONNECTOR:
3517 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3518 arg->value);
3519 break;
bffd9de0
PZ		 3520 case DRM_MODE_OBJECT_CRTC:
3521 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3522 break;
4d93914a
RC		 3523 case DRM_MODE_OBJECT_PLANE:
3524 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3525 break;
c543188a
PZ		 3526 }
3527
3528out:
84849903 3529 drm_modeset_unlock_all(dev);
c543188a
PZ		 3530 return ret;
3531}
3532
f453ba04
DA		 3533int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3534 struct drm_encoder *encoder)
3535{
3536 int i;
3537
3538 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3539 if (connector->encoder_ids[i] == 0) {
3540 connector->encoder_ids[i] = encoder->base.id;
3541 return 0;
3542 }
3543 }
3544 return -ENOMEM;
3545}
3546EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3547
3548void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3549 struct drm_encoder *encoder)
3550{
3551 int i;
3552 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3553 if (connector->encoder_ids[i] == encoder->base.id) {
3554 connector->encoder_ids[i] = 0;
3555 if (connector->encoder == encoder)
3556 connector->encoder = NULL;
3557 break;
3558 }
3559 }
3560}
3561EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3562
4cae5b84 3563int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3564 int gamma_size)
3565{
3566 crtc->gamma_size = gamma_size;
3567
3568 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3569 if (!crtc->gamma_store) {
3570 crtc->gamma_size = 0;
4cae5b84 3571 return -ENOMEM;
f453ba04
DA		 3572 }
3573
4cae5b84 3574 return 0;
f453ba04
DA		 3575}
3576EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3577
3578int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3579 void *data, struct drm_file *file_priv)
3580{
3581 struct drm_mode_crtc_lut *crtc_lut = data;
3582 struct drm_mode_object *obj;
3583 struct drm_crtc *crtc;
3584 void *r_base, *g_base, *b_base;
3585 int size;
3586 int ret = 0;
3587
fb3b06c8
DA		 3588 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3589 return -EINVAL;
3590
84849903 3591 drm_modeset_lock_all(dev);
f453ba04
DA		 3592 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3593 if (!obj) {
3594 ret = -EINVAL;
3595 goto out;
3596 }
3597 crtc = obj_to_crtc(obj);
3598
ebe0f244
LP		 3599 if (crtc->funcs->gamma_set == NULL) {
3600 ret = -ENOSYS;
3601 goto out;
3602 }
3603
f453ba04
DA		 3604 /* memcpy into gamma store */
3605 if (crtc_lut->gamma_size != crtc->gamma_size) {
3606 ret = -EINVAL;
3607 goto out;
3608 }
3609
3610 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3611 r_base = crtc->gamma_store;
3612 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3613 ret = -EFAULT;
3614 goto out;
3615 }
3616
3617 g_base = r_base + size;
3618 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3619 ret = -EFAULT;
3620 goto out;
3621 }
3622
3623 b_base = g_base + size;
3624 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3625 ret = -EFAULT;
3626 goto out;
3627 }
3628
7203425a 3629 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3630
3631out:
84849903 3632 drm_modeset_unlock_all(dev);
f453ba04
DA		 3633 return ret;
3634
3635}
3636
3637int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3638 void *data, struct drm_file *file_priv)
3639{
3640 struct drm_mode_crtc_lut *crtc_lut = data;
3641 struct drm_mode_object *obj;
3642 struct drm_crtc *crtc;
3643 void *r_base, *g_base, *b_base;
3644 int size;
3645 int ret = 0;
3646
fb3b06c8
DA		 3647 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3648 return -EINVAL;
3649
84849903 3650 drm_modeset_lock_all(dev);
f453ba04
DA		 3651 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3652 if (!obj) {
3653 ret = -EINVAL;
3654 goto out;
3655 }
3656 crtc = obj_to_crtc(obj);
3657
3658 /* memcpy into gamma store */
3659 if (crtc_lut->gamma_size != crtc->gamma_size) {
3660 ret = -EINVAL;
3661 goto out;
3662 }
3663
3664 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3665 r_base = crtc->gamma_store;
3666 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3667 ret = -EFAULT;
3668 goto out;
3669 }
3670
3671 g_base = r_base + size;
3672 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3673 ret = -EFAULT;
3674 goto out;
3675 }
3676
3677 b_base = g_base + size;
3678 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3679 ret = -EFAULT;
3680 goto out;
3681 }
3682out:
84849903 3683 drm_modeset_unlock_all(dev);
f453ba04
DA		 3684 return ret;
3685}
d91d8a3f
KH		 3686
3687int drm_mode_page_flip_ioctl(struct drm_device *dev,
3688 void *data, struct drm_file *file_priv)
3689{
3690 struct drm_mode_crtc_page_flip *page_flip = data;
3691 struct drm_mode_object *obj;
3692 struct drm_crtc *crtc;
b0d12325 3693 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
d91d8a3f
KH		 3694 struct drm_pending_vblank_event *e = NULL;
3695 unsigned long flags;
7c80e128 3696 int hdisplay, vdisplay;
d91d8a3f
KH		 3697 int ret = -EINVAL;
3698
3699 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3700 page_flip->reserved != 0)
3701 return -EINVAL;
3702
d91d8a3f
KH		 3703 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3704 if (!obj)
b4d5e7d1 3705 return -EINVAL;
d91d8a3f
KH		 3706 crtc = obj_to_crtc(obj);
3707
b4d5e7d1 3708 mutex_lock(&crtc->mutex);
90c1efdd
CW		 3709 if (crtc->fb == NULL) {
3710 /* The framebuffer is currently unbound, presumably
3711 * due to a hotplug event, that userspace has not
3712 * yet discovered.
3713 */
3714 ret = -EBUSY;
3715 goto out;
3716 }
3717
d91d8a3f
KH		 3718 if (crtc->funcs->page_flip == NULL)
3719 goto out;
3720
786b99ed
DV		 3721 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3722 if (!fb)
d91d8a3f 3723 goto out;
d91d8a3f 3724
7c80e128
RC		 3725 hdisplay = crtc->mode.hdisplay;
3726 vdisplay = crtc->mode.vdisplay;
3727
3728 if (crtc->invert_dimensions)
3729 swap(hdisplay, vdisplay);
3730
3731 if (hdisplay > fb->width ||
3732 vdisplay > fb->height ||
3733 crtc->x > fb->width - hdisplay ||
3734 crtc->y > fb->height - vdisplay) {
3735 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3736 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3737 crtc->invert_dimensions ? " (inverted)" : "");
5f61bb42
VS		 3738 ret = -ENOSPC;
3739 goto out;
3740 }
3741
d91d8a3f
KH		 3742 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3743 ret = -ENOMEM;
3744 spin_lock_irqsave(&dev->event_lock, flags);
3745 if (file_priv->event_space < sizeof e->event) {
3746 spin_unlock_irqrestore(&dev->event_lock, flags);
3747 goto out;
3748 }
3749 file_priv->event_space -= sizeof e->event;
3750 spin_unlock_irqrestore(&dev->event_lock, flags);
3751
3752 e = kzalloc(sizeof *e, GFP_KERNEL);
3753 if (e == NULL) {
3754 spin_lock_irqsave(&dev->event_lock, flags);
3755 file_priv->event_space += sizeof e->event;
3756 spin_unlock_irqrestore(&dev->event_lock, flags);
3757 goto out;
3758 }
3759
7bd4d7be 3760 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3761 e->event.base.length = sizeof e->event;
3762 e->event.user_data = page_flip->user_data;
3763 e->base.event = &e->event.base;
3764 e->base.file_priv = file_priv;
3765 e->base.destroy =
3766 (void (*) (struct drm_pending_event *)) kfree;
3767 }
3768
b0d12325 3769 old_fb = crtc->fb;
d91d8a3f
KH		 3770 ret = crtc->funcs->page_flip(crtc, fb, e);
3771 if (ret) {
aef6a7ee
JS		 3772 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3773 spin_lock_irqsave(&dev->event_lock, flags);
3774 file_priv->event_space += sizeof e->event;
3775 spin_unlock_irqrestore(&dev->event_lock, flags);
3776 kfree(e);
3777 }
b0d12325
DV		 3778 /* Keep the old fb, don't unref it. */
3779 old_fb = NULL;
3780 } else {
3781 /* Unref only the old framebuffer. */
3782 fb = NULL;
d91d8a3f
KH		 3783 }
3784
3785out:
b0d12325
DV		 3786 if (fb)
3787 drm_framebuffer_unreference(fb);
3788 if (old_fb)
3789 drm_framebuffer_unreference(old_fb);
b4d5e7d1
DV		 3790 mutex_unlock(&crtc->mutex);
3791
d91d8a3f
KH		 3792 return ret;
3793}
eb033556
CW		 3794
3795void drm_mode_config_reset(struct drm_device *dev)
3796{
3797 struct drm_crtc *crtc;
3798 struct drm_encoder *encoder;
3799 struct drm_connector *connector;
3800
3801 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3802 if (crtc->funcs->reset)
3803 crtc->funcs->reset(crtc);
3804
3805 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3806 if (encoder->funcs->reset)
3807 encoder->funcs->reset(encoder);
3808
5e2cb2f6
DV		 3809 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3810 connector->status = connector_status_unknown;
3811
eb033556
CW		 3812 if (connector->funcs->reset)
3813 connector->funcs->reset(connector);
5e2cb2f6 3814 }
eb033556
CW		 3815}
3816EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3817
3818int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3819 void *data, struct drm_file *file_priv)
3820{
3821 struct drm_mode_create_dumb *args = data;
3822
3823 if (!dev->driver->dumb_create)
3824 return -ENOSYS;
3825 return dev->driver->dumb_create(file_priv, dev, args);
3826}
3827
3828int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3829 void *data, struct drm_file *file_priv)
3830{
3831 struct drm_mode_map_dumb *args = data;
3832
3833 /* call driver ioctl to get mmap offset */
3834 if (!dev->driver->dumb_map_offset)
3835 return -ENOSYS;
3836
3837 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3838}
3839
3840int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3841 void *data, struct drm_file *file_priv)
3842{
3843 struct drm_mode_destroy_dumb *args = data;
3844
3845 if (!dev->driver->dumb_destroy)
3846 return -ENOSYS;
3847
3848 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3849}
248dbc23
DA		 3850
3851/*
3852 * Just need to support RGB formats here for compat with code that doesn't
3853 * use pixel formats directly yet.
3854 */
3855void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3856 int *bpp)
3857{
3858 switch (format) {
04b3924d
VS		 3859 case DRM_FORMAT_RGB332:
3860 case DRM_FORMAT_BGR233:
248dbc23
DA		 3861 *depth = 8;
3862 *bpp = 8;
3863 break;
04b3924d
VS		 3864 case DRM_FORMAT_XRGB1555:
3865 case DRM_FORMAT_XBGR1555:
3866 case DRM_FORMAT_RGBX5551:
3867 case DRM_FORMAT_BGRX5551:
3868 case DRM_FORMAT_ARGB1555:
3869 case DRM_FORMAT_ABGR1555:
3870 case DRM_FORMAT_RGBA5551:
3871 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3872 *depth = 15;
3873 *bpp = 16;
3874 break;
04b3924d
VS		 3875 case DRM_FORMAT_RGB565:
3876 case DRM_FORMAT_BGR565:
248dbc23
DA		 3877 *depth = 16;
3878 *bpp = 16;
3879 break;
04b3924d
VS		 3880 case DRM_FORMAT_RGB888:
3881 case DRM_FORMAT_BGR888:
3882 *depth = 24;
3883 *bpp = 24;
3884 break;
3885 case DRM_FORMAT_XRGB8888:
3886 case DRM_FORMAT_XBGR8888:
3887 case DRM_FORMAT_RGBX8888:
3888 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3889 *depth = 24;
3890 *bpp = 32;
3891 break;
04b3924d
VS		 3892 case DRM_FORMAT_XRGB2101010:
3893 case DRM_FORMAT_XBGR2101010:
3894 case DRM_FORMAT_RGBX1010102:
3895 case DRM_FORMAT_BGRX1010102:
3896 case DRM_FORMAT_ARGB2101010:
3897 case DRM_FORMAT_ABGR2101010:
3898 case DRM_FORMAT_RGBA1010102:
3899 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3900 *depth = 30;
3901 *bpp = 32;
3902 break;
04b3924d
VS		 3903 case DRM_FORMAT_ARGB8888:
3904 case DRM_FORMAT_ABGR8888:
3905 case DRM_FORMAT_RGBA8888:
3906 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3907 *depth = 32;
3908 *bpp = 32;
3909 break;
3910 default:
3911 DRM_DEBUG_KMS("unsupported pixel format\n");
3912 *depth = 0;
3913 *bpp = 0;
3914 break;
3915 }
3916}
3917EXPORT_SYMBOL(drm_fb_get_bpp_depth);
141670e9
VS		 3918
3919/**
3920 * drm_format_num_planes - get the number of planes for format
3921 * @format: pixel format (DRM_FORMAT_*)
3922 *
3923 * RETURNS:
3924 * The number of planes used by the specified pixel format.
3925 */
3926int drm_format_num_planes(uint32_t format)
3927{
3928 switch (format) {
3929 case DRM_FORMAT_YUV410:
3930 case DRM_FORMAT_YVU410:
3931 case DRM_FORMAT_YUV411:
3932 case DRM_FORMAT_YVU411:
3933 case DRM_FORMAT_YUV420:
3934 case DRM_FORMAT_YVU420:
3935 case DRM_FORMAT_YUV422:
3936 case DRM_FORMAT_YVU422:
3937 case DRM_FORMAT_YUV444:
3938 case DRM_FORMAT_YVU444:
3939 return 3;
3940 case DRM_FORMAT_NV12:
3941 case DRM_FORMAT_NV21:
3942 case DRM_FORMAT_NV16:
3943 case DRM_FORMAT_NV61:
ba623f6a
LP		 3944 case DRM_FORMAT_NV24:
3945 case DRM_FORMAT_NV42:
141670e9
VS		 3946 return 2;
3947 default:
3948 return 1;
3949 }
3950}
3951EXPORT_SYMBOL(drm_format_num_planes);
5a86bd55
VS		 3952
3953/**
3954 * drm_format_plane_cpp - determine the bytes per pixel value
3955 * @format: pixel format (DRM_FORMAT_*)
3956 * @plane: plane index
3957 *
3958 * RETURNS:
3959 * The bytes per pixel value for the specified plane.
3960 */
3961int drm_format_plane_cpp(uint32_t format, int plane)
3962{
3963 unsigned int depth;
3964 int bpp;
3965
3966 if (plane >= drm_format_num_planes(format))
3967 return 0;
3968
3969 switch (format) {
3970 case DRM_FORMAT_YUYV:
3971 case DRM_FORMAT_YVYU:
3972 case DRM_FORMAT_UYVY:
3973 case DRM_FORMAT_VYUY:
3974 return 2;
3975 case DRM_FORMAT_NV12:
3976 case DRM_FORMAT_NV21:
3977 case DRM_FORMAT_NV16:
3978 case DRM_FORMAT_NV61:
ba623f6a
LP		 3979 case DRM_FORMAT_NV24:
3980 case DRM_FORMAT_NV42:
5a86bd55
VS		 3981 return plane ? 2 : 1;
3982 case DRM_FORMAT_YUV410:
3983 case DRM_FORMAT_YVU410:
3984 case DRM_FORMAT_YUV411:
3985 case DRM_FORMAT_YVU411:
3986 case DRM_FORMAT_YUV420:
3987 case DRM_FORMAT_YVU420:
3988 case DRM_FORMAT_YUV422:
3989 case DRM_FORMAT_YVU422:
3990 case DRM_FORMAT_YUV444:
3991 case DRM_FORMAT_YVU444:
3992 return 1;
3993 default:
3994 drm_fb_get_bpp_depth(format, &depth, &bpp);
3995 return bpp >> 3;
3996 }
3997}
3998EXPORT_SYMBOL(drm_format_plane_cpp);
01b68b04
VS		 3999
4000/**
4001 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
4002 * @format: pixel format (DRM_FORMAT_*)
4003 *
4004 * RETURNS:
4005 * The horizontal chroma subsampling factor for the
4006 * specified pixel format.
4007 */
4008int drm_format_horz_chroma_subsampling(uint32_t format)
4009{
4010 switch (format) {
4011 case DRM_FORMAT_YUV411:
4012 case DRM_FORMAT_YVU411:
4013 case DRM_FORMAT_YUV410:
4014 case DRM_FORMAT_YVU410:
4015 return 4;
4016 case DRM_FORMAT_YUYV:
4017 case DRM_FORMAT_YVYU:
4018 case DRM_FORMAT_UYVY:
4019 case DRM_FORMAT_VYUY:
4020 case DRM_FORMAT_NV12:
4021 case DRM_FORMAT_NV21:
4022 case DRM_FORMAT_NV16:
4023 case DRM_FORMAT_NV61:
4024 case DRM_FORMAT_YUV422:
4025 case DRM_FORMAT_YVU422:
4026 case DRM_FORMAT_YUV420:
4027 case DRM_FORMAT_YVU420:
4028 return 2;
4029 default:
4030 return 1;
4031 }
4032}
4033EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
4034
4035/**
4036 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
4037 * @format: pixel format (DRM_FORMAT_*)
4038 *
4039 * RETURNS:
4040 * The vertical chroma subsampling factor for the
4041 * specified pixel format.
4042 */
4043int drm_format_vert_chroma_subsampling(uint32_t format)
4044{
4045 switch (format) {
4046 case DRM_FORMAT_YUV410:
4047 case DRM_FORMAT_YVU410:
4048 return 4;
4049 case DRM_FORMAT_YUV420:
4050 case DRM_FORMAT_YVU420:
4051 case DRM_FORMAT_NV12:
4052 case DRM_FORMAT_NV21:
4053 return 2;
4054 default:
4055 return 1;
4056 }
4057}
4058EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
Linux kernel - Deliverables
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