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drm: Preserve the list head in drm_mode_copy
[deliverable/linux.git] / drivers / gpu / drm / drm_crtc.c
CommitLineData
f453ba04
DA		 1/*
2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
5 *
6 * DRM core CRTC related functions
7 *
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
17 *
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 *
26 * Authors:
27 * Keith Packard
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
31 */
6ba6d03e 32#include <linux/ctype.h>
f453ba04 33#include <linux/list.h>
5a0e3ad6 34#include <linux/slab.h>
2d1a8a48 35#include <linux/export.h>
760285e7
DH		 36#include <drm/drmP.h>
37#include <drm/drm_crtc.h>
38#include <drm/drm_edid.h>
39#include <drm/drm_fourcc.h>
f453ba04 40
84849903
DV		 41/**
42 * drm_modeset_lock_all - take all modeset locks
43 * @dev: drm device
44 *
45 * This function takes all modeset locks, suitable where a more fine-grained
46 * scheme isn't (yet) implemented.
47 */
48void drm_modeset_lock_all(struct drm_device *dev)
49{
29494c17
DV		 50 struct drm_crtc *crtc;
51
84849903 52 mutex_lock(&dev->mode_config.mutex);
29494c17
DV		 53
54 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
55 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
84849903
DV		 56}
57EXPORT_SYMBOL(drm_modeset_lock_all);
58
59/**
60 * drm_modeset_unlock_all - drop all modeset locks
61 * @dev: device
62 */
63void drm_modeset_unlock_all(struct drm_device *dev)
64{
29494c17
DV		 65 struct drm_crtc *crtc;
66
67 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
68 mutex_unlock(&crtc->mutex);
69
84849903
DV		 70 mutex_unlock(&dev->mode_config.mutex);
71}
72EXPORT_SYMBOL(drm_modeset_unlock_all);
73
6aed8ec3
DV		 74/**
75 * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked
76 * @dev: device
77 */
78void drm_warn_on_modeset_not_all_locked(struct drm_device *dev)
79{
80 struct drm_crtc *crtc;
81
a9b054e8
DV		 82 /* Locking is currently fubar in the panic handler. */
83 if (oops_in_progress)
84 return;
85
6aed8ec3
DV		 86 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
87 WARN_ON(!mutex_is_locked(&crtc->mutex));
88
89 WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
90}
91EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked);
92
f453ba04
DA		 93/* Avoid boilerplate. I'm tired of typing. */
94#define DRM_ENUM_NAME_FN(fnname, list) \
d20d3174 95 const char *fnname(int val) \
f453ba04
DA		 96 { \
97 int i; \
98 for (i = 0; i < ARRAY_SIZE(list); i++) { \
99 if (list[i].type == val) \
100 return list[i].name; \
101 } \
102 return "(unknown)"; \
103 }
104
105/*
106 * Global properties
107 */
d20d3174 108static const struct drm_prop_enum_list drm_dpms_enum_list[] =
f453ba04
DA		 109{ { DRM_MODE_DPMS_ON, "On" },
110 { DRM_MODE_DPMS_STANDBY, "Standby" },
111 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
112 { DRM_MODE_DPMS_OFF, "Off" }
113};
114
115DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
116
117/*
118 * Optional properties
119 */
d20d3174 120static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
f453ba04 121{
53bd8389
JB		 122 { DRM_MODE_SCALE_NONE, "None" },
123 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
124 { DRM_MODE_SCALE_CENTER, "Center" },
125 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
f453ba04
DA		 126};
127
d20d3174 128static const struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
f453ba04
DA		 129{
130 { DRM_MODE_DITHERING_OFF, "Off" },
131 { DRM_MODE_DITHERING_ON, "On" },
92897b5c 132 { DRM_MODE_DITHERING_AUTO, "Automatic" },
f453ba04
DA		 133};
134
135/*
136 * Non-global properties, but "required" for certain connectors.
137 */
d20d3174 138static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
f453ba04
DA		 139{
140 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
141 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
142 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
143};
144
145DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
146
d20d3174 147static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
f453ba04
DA		 148{
149 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
150 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
151 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
152};
153
154DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
155 drm_dvi_i_subconnector_enum_list)
156
d20d3174 157static const struct drm_prop_enum_list drm_tv_select_enum_list[] =
f453ba04
DA		 158{
159 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
160 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
161 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
162 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 163 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 164};
165
166DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
167
d20d3174 168static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
f453ba04
DA		 169{
170 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
171 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
172 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
173 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 174 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 175};
176
177DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
178 drm_tv_subconnector_enum_list)
179
d20d3174 180static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
884840aa
JB		 181 { DRM_MODE_DIRTY_OFF, "Off" },
182 { DRM_MODE_DIRTY_ON, "On" },
183 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
184};
185
f453ba04
DA		 186struct drm_conn_prop_enum_list {
187 int type;
d20d3174 188 const char *name;
f453ba04
DA		 189 int count;
190};
191
192/*
193 * Connector and encoder types.
194 */
195static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
196{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
197 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
198 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
199 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
200 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
201 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
202 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
203 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
204 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
e76116ca
AD		 205 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
206 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
207 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
208 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
74bd3c26 209 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
e76116ca 210 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
a7331e5c 211 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
f453ba04
DA		 212};
213
d20d3174 214static const struct drm_prop_enum_list drm_encoder_enum_list[] =
f453ba04
DA		 215{ { DRM_MODE_ENCODER_NONE, "None" },
216 { DRM_MODE_ENCODER_DAC, "DAC" },
217 { DRM_MODE_ENCODER_TMDS, "TMDS" },
218 { DRM_MODE_ENCODER_LVDS, "LVDS" },
219 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 220 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
f453ba04
DA		 221};
222
d20d3174 223const char *drm_get_encoder_name(const struct drm_encoder *encoder)
f453ba04
DA		 224{
225 static char buf[32];
226
227 snprintf(buf, 32, "%s-%d",
228 drm_encoder_enum_list[encoder->encoder_type].name,
229 encoder->base.id);
230 return buf;
231}
13a8195b 232EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04 233
d20d3174 234const char *drm_get_connector_name(const struct drm_connector *connector)
f453ba04
DA		 235{
236 static char buf[32];
237
238 snprintf(buf, 32, "%s-%d",
239 drm_connector_enum_list[connector->connector_type].name,
240 connector->connector_type_id);
241 return buf;
242}
243EXPORT_SYMBOL(drm_get_connector_name);
244
d20d3174 245const char *drm_get_connector_status_name(enum drm_connector_status status)
f453ba04
DA		 246{
247 if (status == connector_status_connected)
248 return "connected";
249 else if (status == connector_status_disconnected)
250 return "disconnected";
251 else
252 return "unknown";
253}
ed7951dc 254EXPORT_SYMBOL(drm_get_connector_status_name);
f453ba04 255
6ba6d03e
VS		 256static char printable_char(int c)
257{
258 return isascii(c) && isprint(c) ? c : '?';
259}
260
d20d3174 261const char *drm_get_format_name(uint32_t format)
6ba6d03e
VS		 262{
263 static char buf[32];
264
265 snprintf(buf, sizeof(buf),
266 "%c%c%c%c %s-endian (0x%08x)",
267 printable_char(format & 0xff),
268 printable_char((format >> 8) & 0xff),
269 printable_char((format >> 16) & 0xff),
270 printable_char((format >> 24) & 0x7f),
271 format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little",
272 format);
273
274 return buf;
275}
276EXPORT_SYMBOL(drm_get_format_name);
277
f453ba04 278/**
065a50ed 279 * drm_mode_object_get - allocate a new modeset identifier
f453ba04 280 * @dev: DRM device
065a50ed
DV		 281 * @obj: object pointer, used to generate unique ID
282 * @obj_type: object type
f453ba04 283 *
f453ba04
DA		 284 * Create a unique identifier based on @ptr in @dev's identifier space. Used
285 * for tracking modes, CRTCs and connectors.
286 *
287 * RETURNS:
288 * New unique (relative to other objects in @dev) integer identifier for the
289 * object.
290 */
291static int drm_mode_object_get(struct drm_device *dev,
292 struct drm_mode_object *obj, uint32_t obj_type)
293{
f453ba04
DA		 294 int ret;
295
ad2563c2 296 mutex_lock(&dev->mode_config.idr_mutex);
2e928815
TH		 297 ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
298 if (ret >= 0) {
4b096ac1
DV		 299 /*
300 * Set up the object linking under the protection of the idr
301 * lock so that other users can't see inconsistent state.
302 */
2e928815 303 obj->id = ret;
4b096ac1
DV		 304 obj->type = obj_type;
305 }
ad2563c2 306 mutex_unlock(&dev->mode_config.idr_mutex);
4b096ac1 307
2e928815 308 return ret < 0 ? ret : 0;
f453ba04
DA		 309}
310
311/**
065a50ed 312 * drm_mode_object_put - free a modeset identifer
f453ba04 313 * @dev: DRM device
065a50ed 314 * @object: object to free
f453ba04 315 *
f453ba04
DA		 316 * Free @id from @dev's unique identifier pool.
317 */
318static void drm_mode_object_put(struct drm_device *dev,
319 struct drm_mode_object *object)
320{
ad2563c2 321 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 322 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 323 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 324}
325
786b99ed
DV		 326/**
327 * drm_mode_object_find - look up a drm object with static lifetime
328 * @dev: drm device
329 * @id: id of the mode object
330 * @type: type of the mode object
331 *
332 * Note that framebuffers cannot be looked up with this functions - since those
333 * are reference counted, they need special treatment.
334 */
7a9c9060
DV		 335struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
336 uint32_t id, uint32_t type)
f453ba04 337{
ad2563c2 338 struct drm_mode_object *obj = NULL;
f453ba04 339
786b99ed
DV		 340 /* Framebuffers are reference counted and need their own lookup
341 * function.*/
342 WARN_ON(type == DRM_MODE_OBJECT_FB);
343
ad2563c2 344 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 345 obj = idr_find(&dev->mode_config.crtc_idr, id);
346 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 347 obj = NULL;
348 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 349
350 return obj;
351}
352EXPORT_SYMBOL(drm_mode_object_find);
353
f453ba04
DA		 354/**
355 * drm_framebuffer_init - initialize a framebuffer
356 * @dev: DRM device
065a50ed
DV		 357 * @fb: framebuffer to be initialized
358 * @funcs: ... with these functions
f453ba04 359 *
f453ba04
DA		 360 * Allocates an ID for the framebuffer's parent mode object, sets its mode
361 * functions & device file and adds it to the master fd list.
362 *
4b096ac1
DV		 363 * IMPORTANT:
364 * This functions publishes the fb and makes it available for concurrent access
365 * by other users. Which means by this point the fb _must_ be fully set up -
366 * since all the fb attributes are invariant over its lifetime, no further
367 * locking but only correct reference counting is required.
368 *
f453ba04 369 * RETURNS:
af901ca1 370 * Zero on success, error code on failure.
f453ba04
DA		 371 */
372int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
373 const struct drm_framebuffer_funcs *funcs)
374{
375 int ret;
376
4b096ac1 377 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e 378 kref_init(&fb->refcount);
4b096ac1
DV		 379 INIT_LIST_HEAD(&fb->filp_head);
380 fb->dev = dev;
381 fb->funcs = funcs;
f7eff60e 382
f453ba04 383 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
6bfc56aa 384 if (ret)
4b096ac1 385 goto out;
f453ba04 386
2b677e8c
DV		 387 /* Grab the idr reference. */
388 drm_framebuffer_reference(fb);
389
f453ba04
DA		 390 dev->mode_config.num_fb++;
391 list_add(&fb->head, &dev->mode_config.fb_list);
4b096ac1
DV		 392out:
393 mutex_unlock(&dev->mode_config.fb_lock);
f453ba04
DA		 394
395 return 0;
396}
397EXPORT_SYMBOL(drm_framebuffer_init);
398
f7eff60e
RC		 399static void drm_framebuffer_free(struct kref *kref)
400{
401 struct drm_framebuffer *fb =
402 container_of(kref, struct drm_framebuffer, refcount);
403 fb->funcs->destroy(fb);
404}
405
2b677e8c
DV		 406static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev,
407 uint32_t id)
408{
409 struct drm_mode_object *obj = NULL;
410 struct drm_framebuffer *fb;
411
412 mutex_lock(&dev->mode_config.idr_mutex);
413 obj = idr_find(&dev->mode_config.crtc_idr, id);
414 if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id))
415 fb = NULL;
416 else
417 fb = obj_to_fb(obj);
418 mutex_unlock(&dev->mode_config.idr_mutex);
419
420 return fb;
421}
422
786b99ed
DV		 423/**
424 * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference
425 * @dev: drm device
426 * @id: id of the fb object
427 *
428 * If successful, this grabs an additional reference to the framebuffer -
429 * callers need to make sure to eventually unreference the returned framebuffer
430 * again.
431 */
432struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
433 uint32_t id)
434{
786b99ed
DV		 435 struct drm_framebuffer *fb;
436
437 mutex_lock(&dev->mode_config.fb_lock);
2b677e8c 438 fb = __drm_framebuffer_lookup(dev, id);
786b99ed 439 if (fb)
9131d3d8 440 drm_framebuffer_reference(fb);
786b99ed
DV		 441 mutex_unlock(&dev->mode_config.fb_lock);
442
443 return fb;
444}
445EXPORT_SYMBOL(drm_framebuffer_lookup);
446
f7eff60e
RC		 447/**
448 * drm_framebuffer_unreference - unref a framebuffer
065a50ed
DV		 449 * @fb: framebuffer to unref
450 *
451 * This functions decrements the fb's refcount and frees it if it drops to zero.
f7eff60e
RC		 452 */
453void drm_framebuffer_unreference(struct drm_framebuffer *fb)
454{
f7eff60e 455 DRM_DEBUG("FB ID: %d\n", fb->base.id);
f7eff60e
RC		 456 kref_put(&fb->refcount, drm_framebuffer_free);
457}
458EXPORT_SYMBOL(drm_framebuffer_unreference);
459
460/**
461 * drm_framebuffer_reference - incr the fb refcnt
065a50ed 462 * @fb: framebuffer
f7eff60e
RC		 463 */
464void drm_framebuffer_reference(struct drm_framebuffer *fb)
465{
466 DRM_DEBUG("FB ID: %d\n", fb->base.id);
467 kref_get(&fb->refcount);
468}
469EXPORT_SYMBOL(drm_framebuffer_reference);
470
2b677e8c
DV		 471static void drm_framebuffer_free_bug(struct kref *kref)
472{
473 BUG();
474}
475
6c2a7532
DV		 476static void __drm_framebuffer_unreference(struct drm_framebuffer *fb)
477{
478 DRM_DEBUG("FB ID: %d\n", fb->base.id);
479 kref_put(&fb->refcount, drm_framebuffer_free_bug);
480}
481
2b677e8c
DV		 482/* dev->mode_config.fb_lock must be held! */
483static void __drm_framebuffer_unregister(struct drm_device *dev,
484 struct drm_framebuffer *fb)
485{
486 mutex_lock(&dev->mode_config.idr_mutex);
487 idr_remove(&dev->mode_config.crtc_idr, fb->base.id);
488 mutex_unlock(&dev->mode_config.idr_mutex);
489
490 fb->base.id = 0;
491
6c2a7532 492 __drm_framebuffer_unreference(fb);
2b677e8c
DV		 493}
494
36206361
DV		 495/**
496 * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr
497 * @fb: fb to unregister
498 *
499 * Drivers need to call this when cleaning up driver-private framebuffers, e.g.
500 * those used for fbdev. Note that the caller must hold a reference of it's own,
501 * i.e. the object may not be destroyed through this call (since it'll lead to a
502 * locking inversion).
503 */
504void drm_framebuffer_unregister_private(struct drm_framebuffer *fb)
505{
2b677e8c
DV		 506 struct drm_device *dev = fb->dev;
507
508 mutex_lock(&dev->mode_config.fb_lock);
509 /* Mark fb as reaped and drop idr ref. */
510 __drm_framebuffer_unregister(dev, fb);
511 mutex_unlock(&dev->mode_config.fb_lock);
36206361
DV		 512}
513EXPORT_SYMBOL(drm_framebuffer_unregister_private);
514
f453ba04
DA		 515/**
516 * drm_framebuffer_cleanup - remove a framebuffer object
517 * @fb: framebuffer to remove
518 *
36206361
DV		 519 * Cleanup references to a user-created framebuffer. This function is intended
520 * to be used from the drivers ->destroy callback.
521 *
522 * Note that this function does not remove the fb from active usuage - if it is
523 * still used anywhere, hilarity can ensue since userspace could call getfb on
524 * the id and get back -EINVAL. Obviously no concern at driver unload time.
525 *
526 * Also, the framebuffer will not be removed from the lookup idr - for
527 * user-created framebuffers this will happen in in the rmfb ioctl. For
528 * driver-private objects (e.g. for fbdev) drivers need to explicitly call
529 * drm_framebuffer_unregister_private.
f453ba04
DA		 530 */
531void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
f7eff60e
RC		 532{
533 struct drm_device *dev = fb->dev;
8faf6b18 534
4b096ac1 535 mutex_lock(&dev->mode_config.fb_lock);
f7eff60e
RC		 536 list_del(&fb->head);
537 dev->mode_config.num_fb--;
4b096ac1 538 mutex_unlock(&dev->mode_config.fb_lock);
f7eff60e
RC		 539}
540EXPORT_SYMBOL(drm_framebuffer_cleanup);
541
542/**
543 * drm_framebuffer_remove - remove and unreference a framebuffer object
544 * @fb: framebuffer to remove
545 *
f7eff60e 546 * Scans all the CRTCs and planes in @dev's mode_config. If they're
36206361 547 * using @fb, removes it, setting it to NULL. Then drops the reference to the
b62584e3
DV		 548 * passed-in framebuffer. Might take the modeset locks.
549 *
550 * Note that this function optimizes the cleanup away if the caller holds the
551 * last reference to the framebuffer. It is also guaranteed to not take the
552 * modeset locks in this case.
f7eff60e
RC		 553 */
554void drm_framebuffer_remove(struct drm_framebuffer *fb)
f453ba04
DA		 555{
556 struct drm_device *dev = fb->dev;
557 struct drm_crtc *crtc;
8cf5c917 558 struct drm_plane *plane;
5ef5f72f
DA		 559 struct drm_mode_set set;
560 int ret;
f453ba04 561
4b096ac1 562 WARN_ON(!list_empty(&fb->filp_head));
8faf6b18 563
b62584e3
DV		 564 /*
565 * drm ABI mandates that we remove any deleted framebuffers from active
566 * useage. But since most sane clients only remove framebuffers they no
567 * longer need, try to optimize this away.
568 *
569 * Since we're holding a reference ourselves, observing a refcount of 1
570 * means that we're the last holder and can skip it. Also, the refcount
571 * can never increase from 1 again, so we don't need any barriers or
572 * locks.
573 *
574 * Note that userspace could try to race with use and instate a new
575 * usage _after_ we've cleared all current ones. End result will be an
576 * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot
577 * in this manner.
578 */
579 if (atomic_read(&fb->refcount.refcount) > 1) {
580 drm_modeset_lock_all(dev);
581 /* remove from any CRTC */
582 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
583 if (crtc->fb == fb) {
584 /* should turn off the crtc */
585 memset(&set, 0, sizeof(struct drm_mode_set));
586 set.crtc = crtc;
587 set.fb = NULL;
588 ret = drm_mode_set_config_internal(&set);
589 if (ret)
590 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
591 }
5ef5f72f 592 }
f453ba04 593
b62584e3
DV		 594 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
595 if (plane->fb == fb) {
596 /* should turn off the crtc */
597 ret = plane->funcs->disable_plane(plane);
598 if (ret)
599 DRM_ERROR("failed to disable plane with busy fb\n");
600 /* disconnect the plane from the fb and crtc: */
601 __drm_framebuffer_unreference(plane->fb);
602 plane->fb = NULL;
603 plane->crtc = NULL;
604 }
8cf5c917 605 }
b62584e3 606 drm_modeset_unlock_all(dev);
8cf5c917
JB		 607 }
608
f7eff60e 609 drm_framebuffer_unreference(fb);
f453ba04 610}
f7eff60e 611EXPORT_SYMBOL(drm_framebuffer_remove);
f453ba04
DA		 612
613/**
614 * drm_crtc_init - Initialise a new CRTC object
615 * @dev: DRM device
616 * @crtc: CRTC object to init
617 * @funcs: callbacks for the new CRTC
618 *
f453ba04 619 * Inits a new object created as base part of an driver crtc object.
6bfc56aa
VS		 620 *
621 * RETURNS:
622 * Zero on success, error code on failure.
f453ba04 623 */
6bfc56aa 624int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
f453ba04
DA		 625 const struct drm_crtc_funcs *funcs)
626{
6bfc56aa
VS		 627 int ret;
628
f453ba04
DA		 629 crtc->dev = dev;
630 crtc->funcs = funcs;
7c80e128 631 crtc->invert_dimensions = false;
f453ba04 632
84849903 633 drm_modeset_lock_all(dev);
29494c17
DV		 634 mutex_init(&crtc->mutex);
635 mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex);
6bfc56aa
VS		 636
637 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
638 if (ret)
639 goto out;
f453ba04 640
bffd9de0
PZ		 641 crtc->base.properties = &crtc->properties;
642
f453ba04
DA		 643 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
644 dev->mode_config.num_crtc++;
6bfc56aa
VS		 645
646 out:
84849903 647 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 648
649 return ret;
f453ba04
DA		 650}
651EXPORT_SYMBOL(drm_crtc_init);
652
653/**
654 * drm_crtc_cleanup - Cleans up the core crtc usage.
655 * @crtc: CRTC to cleanup
656 *
f453ba04
DA		 657 * Cleanup @crtc. Removes from drm modesetting space
658 * does NOT free object, caller does that.
659 */
660void drm_crtc_cleanup(struct drm_crtc *crtc)
661{
662 struct drm_device *dev = crtc->dev;
663
9e1c156f
SK		 664 kfree(crtc->gamma_store);
665 crtc->gamma_store = NULL;
f453ba04
DA		 666
667 drm_mode_object_put(dev, &crtc->base);
668 list_del(&crtc->head);
669 dev->mode_config.num_crtc--;
670}
671EXPORT_SYMBOL(drm_crtc_cleanup);
672
673/**
674 * drm_mode_probed_add - add a mode to a connector's probed mode list
675 * @connector: connector the new mode
676 * @mode: mode data
677 *
f453ba04
DA		 678 * Add @mode to @connector's mode list for later use.
679 */
680void drm_mode_probed_add(struct drm_connector *connector,
681 struct drm_display_mode *mode)
682{
683 list_add(&mode->head, &connector->probed_modes);
684}
685EXPORT_SYMBOL(drm_mode_probed_add);
686
687/**
688 * drm_mode_remove - remove and free a mode
689 * @connector: connector list to modify
690 * @mode: mode to remove
691 *
f453ba04
DA		 692 * Remove @mode from @connector's mode list, then free it.
693 */
694void drm_mode_remove(struct drm_connector *connector,
695 struct drm_display_mode *mode)
696{
697 list_del(&mode->head);
554f1d78 698 drm_mode_destroy(connector->dev, mode);
f453ba04
DA		 699}
700EXPORT_SYMBOL(drm_mode_remove);
701
702/**
703 * drm_connector_init - Init a preallocated connector
704 * @dev: DRM device
705 * @connector: the connector to init
706 * @funcs: callbacks for this connector
065a50ed 707 * @connector_type: user visible type of the connector
f453ba04 708 *
f453ba04
DA		 709 * Initialises a preallocated connector. Connectors should be
710 * subclassed as part of driver connector objects.
6bfc56aa
VS		 711 *
712 * RETURNS:
713 * Zero on success, error code on failure.
f453ba04 714 */
6bfc56aa
VS		 715int drm_connector_init(struct drm_device *dev,
716 struct drm_connector *connector,
717 const struct drm_connector_funcs *funcs,
718 int connector_type)
f453ba04 719{
6bfc56aa
VS		 720 int ret;
721
84849903 722 drm_modeset_lock_all(dev);
f453ba04 723
6bfc56aa
VS		 724 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
725 if (ret)
726 goto out;
727
7e3bdf4a 728 connector->base.properties = &connector->properties;
f453ba04
DA		 729 connector->dev = dev;
730 connector->funcs = funcs;
f453ba04
DA		 731 connector->connector_type = connector_type;
732 connector->connector_type_id =
733 ++drm_connector_enum_list[connector_type].count; /* TODO */
f453ba04
DA		 734 INIT_LIST_HEAD(&connector->probed_modes);
735 INIT_LIST_HEAD(&connector->modes);
736 connector->edid_blob_ptr = NULL;
5e2cb2f6 737 connector->status = connector_status_unknown;
f453ba04
DA		 738
739 list_add_tail(&connector->head, &dev->mode_config.connector_list);
740 dev->mode_config.num_connector++;
741
a7331e5c 742 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
58495563 743 drm_object_attach_property(&connector->base,
a7331e5c
TH		 744 dev->mode_config.edid_property,
745 0);
f453ba04 746
58495563 747 drm_object_attach_property(&connector->base,
f453ba04
DA		 748 dev->mode_config.dpms_property, 0);
749
6bfc56aa 750 out:
84849903 751 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 752
753 return ret;
f453ba04
DA		 754}
755EXPORT_SYMBOL(drm_connector_init);
756
757/**
758 * drm_connector_cleanup - cleans up an initialised connector
759 * @connector: connector to cleanup
760 *
f453ba04
DA		 761 * Cleans up the connector but doesn't free the object.
762 */
763void drm_connector_cleanup(struct drm_connector *connector)
764{
765 struct drm_device *dev = connector->dev;
766 struct drm_display_mode *mode, *t;
767
768 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
769 drm_mode_remove(connector, mode);
770
771 list_for_each_entry_safe(mode, t, &connector->modes, head)
772 drm_mode_remove(connector, mode);
773
f453ba04
DA		 774 drm_mode_object_put(dev, &connector->base);
775 list_del(&connector->head);
6380c509 776 dev->mode_config.num_connector--;
f453ba04
DA		 777}
778EXPORT_SYMBOL(drm_connector_cleanup);
779
cbc7e221
DA		 780void drm_connector_unplug_all(struct drm_device *dev)
781{
782 struct drm_connector *connector;
783
784 /* taking the mode config mutex ends up in a clash with sysfs */
785 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
786 drm_sysfs_connector_remove(connector);
787
788}
789EXPORT_SYMBOL(drm_connector_unplug_all);
790
6bfc56aa 791int drm_encoder_init(struct drm_device *dev,
cbc7e221
DA		 792 struct drm_encoder *encoder,
793 const struct drm_encoder_funcs *funcs,
794 int encoder_type)
f453ba04 795{
6bfc56aa
VS		 796 int ret;
797
84849903 798 drm_modeset_lock_all(dev);
f453ba04 799
6bfc56aa
VS		 800 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
801 if (ret)
802 goto out;
f453ba04 803
6bfc56aa 804 encoder->dev = dev;
f453ba04
DA		 805 encoder->encoder_type = encoder_type;
806 encoder->funcs = funcs;
807
808 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
809 dev->mode_config.num_encoder++;
810
6bfc56aa 811 out:
84849903 812 drm_modeset_unlock_all(dev);
6bfc56aa
VS		 813
814 return ret;
f453ba04
DA		 815}
816EXPORT_SYMBOL(drm_encoder_init);
817
818void drm_encoder_cleanup(struct drm_encoder *encoder)
819{
820 struct drm_device *dev = encoder->dev;
84849903 821 drm_modeset_lock_all(dev);
f453ba04
DA		 822 drm_mode_object_put(dev, &encoder->base);
823 list_del(&encoder->head);
6380c509 824 dev->mode_config.num_encoder--;
84849903 825 drm_modeset_unlock_all(dev);
f453ba04
DA		 826}
827EXPORT_SYMBOL(drm_encoder_cleanup);
828
8cf5c917
JB		 829int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
830 unsigned long possible_crtcs,
831 const struct drm_plane_funcs *funcs,
0a7eb243
RC		 832 const uint32_t *formats, uint32_t format_count,
833 bool priv)
8cf5c917 834{
6bfc56aa
VS		 835 int ret;
836
84849903 837 drm_modeset_lock_all(dev);
8cf5c917 838
6bfc56aa
VS		 839 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
840 if (ret)
841 goto out;
842
4d93914a 843 plane->base.properties = &plane->properties;
8cf5c917 844 plane->dev = dev;
8cf5c917
JB		 845 plane->funcs = funcs;
846 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
847 GFP_KERNEL);
848 if (!plane->format_types) {
849 DRM_DEBUG_KMS("out of memory when allocating plane\n");
850 drm_mode_object_put(dev, &plane->base);
6bfc56aa
VS		 851 ret = -ENOMEM;
852 goto out;
8cf5c917
JB		 853 }
854
308e5bcb 855 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 856 plane->format_count = format_count;
857 plane->possible_crtcs = possible_crtcs;
858
0a7eb243
RC		 859 /* private planes are not exposed to userspace, but depending on
860 * display hardware, might be convenient to allow sharing programming
861 * for the scanout engine with the crtc implementation.
862 */
863 if (!priv) {
864 list_add_tail(&plane->head, &dev->mode_config.plane_list);
865 dev->mode_config.num_plane++;
866 } else {
867 INIT_LIST_HEAD(&plane->head);
868 }
8cf5c917 869
6bfc56aa 870 out:
84849903 871 drm_modeset_unlock_all(dev);
8cf5c917 872
6bfc56aa 873 return ret;
8cf5c917
JB		 874}
875EXPORT_SYMBOL(drm_plane_init);
876
877void drm_plane_cleanup(struct drm_plane *plane)
878{
879 struct drm_device *dev = plane->dev;
880
84849903 881 drm_modeset_lock_all(dev);
8cf5c917
JB		 882 kfree(plane->format_types);
883 drm_mode_object_put(dev, &plane->base);
0a7eb243
RC		 884 /* if not added to a list, it must be a private plane */
885 if (!list_empty(&plane->head)) {
886 list_del(&plane->head);
887 dev->mode_config.num_plane--;
888 }
84849903 889 drm_modeset_unlock_all(dev);
8cf5c917
JB		 890}
891EXPORT_SYMBOL(drm_plane_cleanup);
892
f453ba04
DA		 893/**
894 * drm_mode_create - create a new display mode
895 * @dev: DRM device
896 *
f453ba04
DA		 897 * Create a new drm_display_mode, give it an ID, and return it.
898 *
899 * RETURNS:
900 * Pointer to new mode on success, NULL on error.
901 */
902struct drm_display_mode *drm_mode_create(struct drm_device *dev)
903{
904 struct drm_display_mode *nmode;
905
906 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
907 if (!nmode)
908 return NULL;
909
6bfc56aa
VS		 910 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
911 kfree(nmode);
912 return NULL;
913 }
914
f453ba04
DA		 915 return nmode;
916}
917EXPORT_SYMBOL(drm_mode_create);
918
919/**
920 * drm_mode_destroy - remove a mode
921 * @dev: DRM device
922 * @mode: mode to remove
923 *
f453ba04
DA		 924 * Free @mode's unique identifier, then free it.
925 */
926void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
927{
ee34ab5b
VS		 928 if (!mode)
929 return;
930
f453ba04
DA		 931 drm_mode_object_put(dev, &mode->base);
932
933 kfree(mode);
934}
935EXPORT_SYMBOL(drm_mode_destroy);
936
937static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
938{
939 struct drm_property *edid;
940 struct drm_property *dpms;
f453ba04
DA		 941
942 /*
943 * Standard properties (apply to all connectors)
944 */
945 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
946 DRM_MODE_PROP_IMMUTABLE,
947 "EDID", 0);
948 dev->mode_config.edid_property = edid;
949
4a67d391
SH		 950 dpms = drm_property_create_enum(dev, 0,
951 "DPMS", drm_dpms_enum_list,
952 ARRAY_SIZE(drm_dpms_enum_list));
f453ba04
DA		 953 dev->mode_config.dpms_property = dpms;
954
955 return 0;
956}
957
958/**
959 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
960 * @dev: DRM device
961 *
962 * Called by a driver the first time a DVI-I connector is made.
963 */
964int drm_mode_create_dvi_i_properties(struct drm_device *dev)
965{
966 struct drm_property *dvi_i_selector;
967 struct drm_property *dvi_i_subconnector;
f453ba04
DA		 968
969 if (dev->mode_config.dvi_i_select_subconnector_property)
970 return 0;
971
972 dvi_i_selector =
4a67d391 973 drm_property_create_enum(dev, 0,
f453ba04 974 "select subconnector",
4a67d391 975 drm_dvi_i_select_enum_list,
f453ba04 976 ARRAY_SIZE(drm_dvi_i_select_enum_list));
f453ba04
DA		 977 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
978
4a67d391 979 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
f453ba04 980 "subconnector",
4a67d391 981 drm_dvi_i_subconnector_enum_list,
f453ba04 982 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
f453ba04
DA		 983 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
984
985 return 0;
986}
987EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
988
989/**
990 * drm_create_tv_properties - create TV specific connector properties
991 * @dev: DRM device
992 * @num_modes: number of different TV formats (modes) supported
993 * @modes: array of pointers to strings containing name of each format
994 *
995 * Called by a driver's TV initialization routine, this function creates
996 * the TV specific connector properties for a given device. Caller is
997 * responsible for allocating a list of format names and passing them to
998 * this routine.
999 */
1000int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
1001 char *modes[])
1002{
1003 struct drm_property *tv_selector;
1004 struct drm_property *tv_subconnector;
1005 int i;
1006
1007 if (dev->mode_config.tv_select_subconnector_property)
1008 return 0;
1009
1010 /*
1011 * Basic connector properties
1012 */
4a67d391 1013 tv_selector = drm_property_create_enum(dev, 0,
f453ba04 1014 "select subconnector",
4a67d391 1015 drm_tv_select_enum_list,
f453ba04 1016 ARRAY_SIZE(drm_tv_select_enum_list));
f453ba04
DA		 1017 dev->mode_config.tv_select_subconnector_property = tv_selector;
1018
1019 tv_subconnector =
4a67d391
SH		 1020 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
1021 "subconnector",
1022 drm_tv_subconnector_enum_list,
f453ba04 1023 ARRAY_SIZE(drm_tv_subconnector_enum_list));
f453ba04
DA		 1024 dev->mode_config.tv_subconnector_property = tv_subconnector;
1025
1026 /*
1027 * Other, TV specific properties: margins & TV modes.
1028 */
1029 dev->mode_config.tv_left_margin_property =
d9bc3c02 1030 drm_property_create_range(dev, 0, "left margin", 0, 100);
f453ba04
DA		 1031
1032 dev->mode_config.tv_right_margin_property =
d9bc3c02 1033 drm_property_create_range(dev, 0, "right margin", 0, 100);
f453ba04
DA		 1034
1035 dev->mode_config.tv_top_margin_property =
d9bc3c02 1036 drm_property_create_range(dev, 0, "top margin", 0, 100);
f453ba04
DA		 1037
1038 dev->mode_config.tv_bottom_margin_property =
d9bc3c02 1039 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
f453ba04
DA		 1040
1041 dev->mode_config.tv_mode_property =
1042 drm_property_create(dev, DRM_MODE_PROP_ENUM,
1043 "mode", num_modes);
1044 for (i = 0; i < num_modes; i++)
1045 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
1046 i, modes[i]);
1047
b6b7902e 1048 dev->mode_config.tv_brightness_property =
d9bc3c02 1049 drm_property_create_range(dev, 0, "brightness", 0, 100);
b6b7902e
FJ		 1050
1051 dev->mode_config.tv_contrast_property =
d9bc3c02 1052 drm_property_create_range(dev, 0, "contrast", 0, 100);
b6b7902e
FJ		 1053
1054 dev->mode_config.tv_flicker_reduction_property =
d9bc3c02 1055 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
b6b7902e 1056
a75f0236 1057 dev->mode_config.tv_overscan_property =
d9bc3c02 1058 drm_property_create_range(dev, 0, "overscan", 0, 100);
a75f0236
FJ		 1059
1060 dev->mode_config.tv_saturation_property =
d9bc3c02 1061 drm_property_create_range(dev, 0, "saturation", 0, 100);
a75f0236
FJ		 1062
1063 dev->mode_config.tv_hue_property =
d9bc3c02 1064 drm_property_create_range(dev, 0, "hue", 0, 100);
a75f0236 1065
f453ba04
DA		 1066 return 0;
1067}
1068EXPORT_SYMBOL(drm_mode_create_tv_properties);
1069
1070/**
1071 * drm_mode_create_scaling_mode_property - create scaling mode property
1072 * @dev: DRM device
1073 *
1074 * Called by a driver the first time it's needed, must be attached to desired
1075 * connectors.
1076 */
1077int drm_mode_create_scaling_mode_property(struct drm_device *dev)
1078{
1079 struct drm_property *scaling_mode;
f453ba04
DA		 1080
1081 if (dev->mode_config.scaling_mode_property)
1082 return 0;
1083
1084 scaling_mode =
4a67d391
SH		 1085 drm_property_create_enum(dev, 0, "scaling mode",
1086 drm_scaling_mode_enum_list,
f453ba04 1087 ARRAY_SIZE(drm_scaling_mode_enum_list));
f453ba04
DA		 1088
1089 dev->mode_config.scaling_mode_property = scaling_mode;
1090
1091 return 0;
1092}
1093EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
1094
1095/**
1096 * drm_mode_create_dithering_property - create dithering 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_dithering_property(struct drm_device *dev)
1103{
1104 struct drm_property *dithering_mode;
f453ba04
DA		 1105
1106 if (dev->mode_config.dithering_mode_property)
1107 return 0;
1108
1109 dithering_mode =
4a67d391
SH		 1110 drm_property_create_enum(dev, 0, "dithering",
1111 drm_dithering_mode_enum_list,
f453ba04 1112 ARRAY_SIZE(drm_dithering_mode_enum_list));
f453ba04
DA		 1113 dev->mode_config.dithering_mode_property = dithering_mode;
1114
1115 return 0;
1116}
1117EXPORT_SYMBOL(drm_mode_create_dithering_property);
1118
884840aa
JB		 1119/**
1120 * drm_mode_create_dirty_property - create dirty property
1121 * @dev: DRM device
1122 *
1123 * Called by a driver the first time it's needed, must be attached to desired
1124 * connectors.
1125 */
1126int drm_mode_create_dirty_info_property(struct drm_device *dev)
1127{
1128 struct drm_property *dirty_info;
884840aa
JB		 1129
1130 if (dev->mode_config.dirty_info_property)
1131 return 0;
1132
1133 dirty_info =
4a67d391 1134 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
884840aa 1135 "dirty",
4a67d391 1136 drm_dirty_info_enum_list,
884840aa 1137 ARRAY_SIZE(drm_dirty_info_enum_list));
884840aa
JB		 1138 dev->mode_config.dirty_info_property = dirty_info;
1139
1140 return 0;
1141}
1142EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
1143
ea9cbb06 1144static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
f453ba04
DA		 1145{
1146 uint32_t total_objects = 0;
1147
1148 total_objects += dev->mode_config.num_crtc;
1149 total_objects += dev->mode_config.num_connector;
1150 total_objects += dev->mode_config.num_encoder;
1151
f453ba04
DA		 1152 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
1153 if (!group->id_list)
1154 return -ENOMEM;
1155
1156 group->num_crtcs = 0;
1157 group->num_connectors = 0;
1158 group->num_encoders = 0;
1159 return 0;
1160}
1161
1162int drm_mode_group_init_legacy_group(struct drm_device *dev,
1163 struct drm_mode_group *group)
1164{
1165 struct drm_crtc *crtc;
1166 struct drm_encoder *encoder;
1167 struct drm_connector *connector;
1168 int ret;
1169
1170 if ((ret = drm_mode_group_init(dev, group)))
1171 return ret;
1172
1173 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
1174 group->id_list[group->num_crtcs++] = crtc->base.id;
1175
1176 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
1177 group->id_list[group->num_crtcs + group->num_encoders++] =
1178 encoder->base.id;
1179
1180 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
1181 group->id_list[group->num_crtcs + group->num_encoders +
1182 group->num_connectors++] = connector->base.id;
1183
1184 return 0;
1185}
9c1dfc55 1186EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
f453ba04 1187
f453ba04
DA		 1188/**
1189 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1190 * @out: drm_mode_modeinfo struct to return to the user
1191 * @in: drm_display_mode to use
1192 *
f453ba04
DA		 1193 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1194 * the user.
1195 */
93bbf6db
VS		 1196static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1197 const struct drm_display_mode *in)
f453ba04 1198{
e36fae38
VS		 1199 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1200 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1201 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1202 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1203 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1204 "timing values too large for mode info\n");
1205
f453ba04
DA		 1206 out->clock = in->clock;
1207 out->hdisplay = in->hdisplay;
1208 out->hsync_start = in->hsync_start;
1209 out->hsync_end = in->hsync_end;
1210 out->htotal = in->htotal;
1211 out->hskew = in->hskew;
1212 out->vdisplay = in->vdisplay;
1213 out->vsync_start = in->vsync_start;
1214 out->vsync_end = in->vsync_end;
1215 out->vtotal = in->vtotal;
1216 out->vscan = in->vscan;
1217 out->vrefresh = in->vrefresh;
1218 out->flags = in->flags;
1219 out->type = in->type;
1220 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1221 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1222}
1223
1224/**
1225 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1226 * @out: drm_display_mode to return to the user
1227 * @in: drm_mode_modeinfo to use
1228 *
f453ba04
DA		 1229 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1230 * the caller.
90367bf6
VS		 1231 *
1232 * RETURNS:
1233 * Zero on success, errno on failure.
f453ba04 1234 */
93bbf6db
VS		 1235static int drm_crtc_convert_umode(struct drm_display_mode *out,
1236 const struct drm_mode_modeinfo *in)
f453ba04 1237{
90367bf6
VS		 1238 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1239 return -ERANGE;
1240
f453ba04
DA		 1241 out->clock = in->clock;
1242 out->hdisplay = in->hdisplay;
1243 out->hsync_start = in->hsync_start;
1244 out->hsync_end = in->hsync_end;
1245 out->htotal = in->htotal;
1246 out->hskew = in->hskew;
1247 out->vdisplay = in->vdisplay;
1248 out->vsync_start = in->vsync_start;
1249 out->vsync_end = in->vsync_end;
1250 out->vtotal = in->vtotal;
1251 out->vscan = in->vscan;
1252 out->vrefresh = in->vrefresh;
1253 out->flags = in->flags;
1254 out->type = in->type;
1255 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1256 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
90367bf6
VS		 1257
1258 return 0;
f453ba04
DA		 1259}
1260
1261/**
1262 * drm_mode_getresources - get graphics configuration
065a50ed
DV		 1263 * @dev: drm device for the ioctl
1264 * @data: data pointer for the ioctl
1265 * @file_priv: drm file for the ioctl call
f453ba04 1266 *
f453ba04
DA		 1267 * Construct a set of configuration description structures and return
1268 * them to the user, including CRTC, connector and framebuffer configuration.
1269 *
1270 * Called by the user via ioctl.
1271 *
1272 * RETURNS:
1273 * Zero on success, errno on failure.
1274 */
1275int drm_mode_getresources(struct drm_device *dev, void *data,
1276 struct drm_file *file_priv)
1277{
1278 struct drm_mode_card_res *card_res = data;
1279 struct list_head *lh;
1280 struct drm_framebuffer *fb;
1281 struct drm_connector *connector;
1282 struct drm_crtc *crtc;
1283 struct drm_encoder *encoder;
1284 int ret = 0;
1285 int connector_count = 0;
1286 int crtc_count = 0;
1287 int fb_count = 0;
1288 int encoder_count = 0;
1289 int copied = 0, i;
1290 uint32_t __user *fb_id;
1291 uint32_t __user *crtc_id;
1292 uint32_t __user *connector_id;
1293 uint32_t __user *encoder_id;
1294 struct drm_mode_group *mode_group;
1295
fb3b06c8
DA		 1296 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1297 return -EINVAL;
1298
f453ba04 1299
4b096ac1 1300 mutex_lock(&file_priv->fbs_lock);
f453ba04
DA		 1301 /*
1302 * For the non-control nodes we need to limit the list of resources
1303 * by IDs in the group list for this node
1304 */
1305 list_for_each(lh, &file_priv->fbs)
1306 fb_count++;
1307
4b096ac1
DV		 1308 /* handle this in 4 parts */
1309 /* FBs */
1310 if (card_res->count_fbs >= fb_count) {
1311 copied = 0;
1312 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1313 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1314 if (put_user(fb->base.id, fb_id + copied)) {
1315 mutex_unlock(&file_priv->fbs_lock);
1316 return -EFAULT;
1317 }
1318 copied++;
1319 }
1320 }
1321 card_res->count_fbs = fb_count;
1322 mutex_unlock(&file_priv->fbs_lock);
1323
1324 drm_modeset_lock_all(dev);
f453ba04
DA		 1325 mode_group = &file_priv->master->minor->mode_group;
1326 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1327
1328 list_for_each(lh, &dev->mode_config.crtc_list)
1329 crtc_count++;
1330
1331 list_for_each(lh, &dev->mode_config.connector_list)
1332 connector_count++;
1333
1334 list_for_each(lh, &dev->mode_config.encoder_list)
1335 encoder_count++;
1336 } else {
1337
1338 crtc_count = mode_group->num_crtcs;
1339 connector_count = mode_group->num_connectors;
1340 encoder_count = mode_group->num_encoders;
1341 }
1342
1343 card_res->max_height = dev->mode_config.max_height;
1344 card_res->min_height = dev->mode_config.min_height;
1345 card_res->max_width = dev->mode_config.max_width;
1346 card_res->min_width = dev->mode_config.min_width;
1347
f453ba04
DA		 1348 /* CRTCs */
1349 if (card_res->count_crtcs >= crtc_count) {
1350 copied = 0;
1351 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1352 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1353 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1354 head) {
9440106b 1355 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1356 if (put_user(crtc->base.id, crtc_id + copied)) {
1357 ret = -EFAULT;
1358 goto out;
1359 }
1360 copied++;
1361 }
1362 } else {
1363 for (i = 0; i < mode_group->num_crtcs; i++) {
1364 if (put_user(mode_group->id_list[i],
1365 crtc_id + copied)) {
1366 ret = -EFAULT;
1367 goto out;
1368 }
1369 copied++;
1370 }
1371 }
1372 }
1373 card_res->count_crtcs = crtc_count;
1374
1375 /* Encoders */
1376 if (card_res->count_encoders >= encoder_count) {
1377 copied = 0;
1378 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1379 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1380 list_for_each_entry(encoder,
1381 &dev->mode_config.encoder_list,
1382 head) {
9440106b
JG		 1383 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1384 drm_get_encoder_name(encoder));
f453ba04
DA		 1385 if (put_user(encoder->base.id, encoder_id +
1386 copied)) {
1387 ret = -EFAULT;
1388 goto out;
1389 }
1390 copied++;
1391 }
1392 } else {
1393 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1394 if (put_user(mode_group->id_list[i],
1395 encoder_id + copied)) {
1396 ret = -EFAULT;
1397 goto out;
1398 }
1399 copied++;
1400 }
1401
1402 }
1403 }
1404 card_res->count_encoders = encoder_count;
1405
1406 /* Connectors */
1407 if (card_res->count_connectors >= connector_count) {
1408 copied = 0;
1409 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1410 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1411 list_for_each_entry(connector,
1412 &dev->mode_config.connector_list,
1413 head) {
9440106b
JG		 1414 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1415 connector->base.id,
1416 drm_get_connector_name(connector));
f453ba04
DA		 1417 if (put_user(connector->base.id,
1418 connector_id + copied)) {
1419 ret = -EFAULT;
1420 goto out;
1421 }
1422 copied++;
1423 }
1424 } else {
1425 int start = mode_group->num_crtcs +
1426 mode_group->num_encoders;
1427 for (i = start; i < start + mode_group->num_connectors; i++) {
1428 if (put_user(mode_group->id_list[i],
1429 connector_id + copied)) {
1430 ret = -EFAULT;
1431 goto out;
1432 }
1433 copied++;
1434 }
1435 }
1436 }
1437 card_res->count_connectors = connector_count;
1438
9440106b 1439 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1440 card_res->count_connectors, card_res->count_encoders);
1441
1442out:
84849903 1443 drm_modeset_unlock_all(dev);
f453ba04
DA		 1444 return ret;
1445}
1446
1447/**
1448 * drm_mode_getcrtc - get CRTC configuration
065a50ed
DV		 1449 * @dev: drm device for the ioctl
1450 * @data: data pointer for the ioctl
1451 * @file_priv: drm file for the ioctl call
f453ba04 1452 *
f453ba04
DA		 1453 * Construct a CRTC configuration structure to return to the user.
1454 *
1455 * Called by the user via ioctl.
1456 *
1457 * RETURNS:
1458 * Zero on success, errno on failure.
1459 */
1460int drm_mode_getcrtc(struct drm_device *dev,
1461 void *data, struct drm_file *file_priv)
1462{
1463 struct drm_mode_crtc *crtc_resp = data;
1464 struct drm_crtc *crtc;
1465 struct drm_mode_object *obj;
1466 int ret = 0;
1467
fb3b06c8
DA		 1468 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1469 return -EINVAL;
1470
84849903 1471 drm_modeset_lock_all(dev);
f453ba04
DA		 1472
1473 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1474 DRM_MODE_OBJECT_CRTC);
1475 if (!obj) {
1476 ret = -EINVAL;
1477 goto out;
1478 }
1479 crtc = obj_to_crtc(obj);
1480
1481 crtc_resp->x = crtc->x;
1482 crtc_resp->y = crtc->y;
1483 crtc_resp->gamma_size = crtc->gamma_size;
1484 if (crtc->fb)
1485 crtc_resp->fb_id = crtc->fb->base.id;
1486 else
1487 crtc_resp->fb_id = 0;
1488
1489 if (crtc->enabled) {
1490
1491 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1492 crtc_resp->mode_valid = 1;
1493
1494 } else {
1495 crtc_resp->mode_valid = 0;
1496 }
1497
1498out:
84849903 1499 drm_modeset_unlock_all(dev);
f453ba04
DA		 1500 return ret;
1501}
1502
1503/**
1504 * drm_mode_getconnector - get connector configuration
065a50ed
DV		 1505 * @dev: drm device for the ioctl
1506 * @data: data pointer for the ioctl
1507 * @file_priv: drm file for the ioctl call
f453ba04 1508 *
f453ba04
DA		 1509 * Construct a connector configuration structure to return to the user.
1510 *
1511 * Called by the user via ioctl.
1512 *
1513 * RETURNS:
1514 * Zero on success, errno on failure.
1515 */
1516int drm_mode_getconnector(struct drm_device *dev, void *data,
1517 struct drm_file *file_priv)
1518{
1519 struct drm_mode_get_connector *out_resp = data;
1520 struct drm_mode_object *obj;
1521 struct drm_connector *connector;
1522 struct drm_display_mode *mode;
1523 int mode_count = 0;
1524 int props_count = 0;
1525 int encoders_count = 0;
1526 int ret = 0;
1527 int copied = 0;
1528 int i;
1529 struct drm_mode_modeinfo u_mode;
1530 struct drm_mode_modeinfo __user *mode_ptr;
1531 uint32_t __user *prop_ptr;
1532 uint64_t __user *prop_values;
1533 uint32_t __user *encoder_ptr;
1534
fb3b06c8
DA		 1535 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1536 return -EINVAL;
1537
f453ba04
DA		 1538 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1539
9440106b 1540 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04 1541
7b24056b 1542 mutex_lock(&dev->mode_config.mutex);
f453ba04
DA		 1543
1544 obj = drm_mode_object_find(dev, out_resp->connector_id,
1545 DRM_MODE_OBJECT_CONNECTOR);
1546 if (!obj) {
1547 ret = -EINVAL;
1548 goto out;
1549 }
1550 connector = obj_to_connector(obj);
1551
7f88a9be 1552 props_count = connector->properties.count;
f453ba04
DA		 1553
1554 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1555 if (connector->encoder_ids[i] != 0) {
1556 encoders_count++;
1557 }
1558 }
1559
1560 if (out_resp->count_modes == 0) {
1561 connector->funcs->fill_modes(connector,
1562 dev->mode_config.max_width,
1563 dev->mode_config.max_height);
1564 }
1565
1566 /* delayed so we get modes regardless of pre-fill_modes state */
1567 list_for_each_entry(mode, &connector->modes, head)
1568 mode_count++;
1569
1570 out_resp->connector_id = connector->base.id;
1571 out_resp->connector_type = connector->connector_type;
1572 out_resp->connector_type_id = connector->connector_type_id;
1573 out_resp->mm_width = connector->display_info.width_mm;
1574 out_resp->mm_height = connector->display_info.height_mm;
1575 out_resp->subpixel = connector->display_info.subpixel_order;
1576 out_resp->connection = connector->status;
1577 if (connector->encoder)
1578 out_resp->encoder_id = connector->encoder->base.id;
1579 else
1580 out_resp->encoder_id = 0;
1581
1582 /*
1583 * This ioctl is called twice, once to determine how much space is
1584 * needed, and the 2nd time to fill it.
1585 */
1586 if ((out_resp->count_modes >= mode_count) && mode_count) {
1587 copied = 0;
81f6c7f8 1588 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04
DA		 1589 list_for_each_entry(mode, &connector->modes, head) {
1590 drm_crtc_convert_to_umode(&u_mode, mode);
1591 if (copy_to_user(mode_ptr + copied,
1592 &u_mode, sizeof(u_mode))) {
1593 ret = -EFAULT;
1594 goto out;
1595 }
1596 copied++;
1597 }
1598 }
1599 out_resp->count_modes = mode_count;
1600
1601 if ((out_resp->count_props >= props_count) && props_count) {
1602 copied = 0;
81f6c7f8
VS		 1603 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1604 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
7f88a9be
PZ		 1605 for (i = 0; i < connector->properties.count; i++) {
1606 if (put_user(connector->properties.ids[i],
1607 prop_ptr + copied)) {
1608 ret = -EFAULT;
1609 goto out;
1610 }
f453ba04 1611
7f88a9be
PZ		 1612 if (put_user(connector->properties.values[i],
1613 prop_values + copied)) {
1614 ret = -EFAULT;
1615 goto out;
f453ba04 1616 }
7f88a9be 1617 copied++;
f453ba04
DA		 1618 }
1619 }
1620 out_resp->count_props = props_count;
1621
1622 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1623 copied = 0;
81f6c7f8 1624 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1625 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1626 if (connector->encoder_ids[i] != 0) {
1627 if (put_user(connector->encoder_ids[i],
1628 encoder_ptr + copied)) {
1629 ret = -EFAULT;
1630 goto out;
1631 }
1632 copied++;
1633 }
1634 }
1635 }
1636 out_resp->count_encoders = encoders_count;
1637
1638out:
7b24056b
DV		 1639 mutex_unlock(&dev->mode_config.mutex);
1640
f453ba04
DA		 1641 return ret;
1642}
1643
1644int drm_mode_getencoder(struct drm_device *dev, void *data,
1645 struct drm_file *file_priv)
1646{
1647 struct drm_mode_get_encoder *enc_resp = data;
1648 struct drm_mode_object *obj;
1649 struct drm_encoder *encoder;
1650 int ret = 0;
1651
fb3b06c8
DA		 1652 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1653 return -EINVAL;
1654
84849903 1655 drm_modeset_lock_all(dev);
f453ba04
DA		 1656 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1657 DRM_MODE_OBJECT_ENCODER);
1658 if (!obj) {
1659 ret = -EINVAL;
1660 goto out;
1661 }
1662 encoder = obj_to_encoder(obj);
1663
1664 if (encoder->crtc)
1665 enc_resp->crtc_id = encoder->crtc->base.id;
1666 else
1667 enc_resp->crtc_id = 0;
1668 enc_resp->encoder_type = encoder->encoder_type;
1669 enc_resp->encoder_id = encoder->base.id;
1670 enc_resp->possible_crtcs = encoder->possible_crtcs;
1671 enc_resp->possible_clones = encoder->possible_clones;
1672
1673out:
84849903 1674 drm_modeset_unlock_all(dev);
f453ba04
DA		 1675 return ret;
1676}
1677
8cf5c917
JB		 1678/**
1679 * drm_mode_getplane_res - get plane info
1680 * @dev: DRM device
1681 * @data: ioctl data
1682 * @file_priv: DRM file info
1683 *
1684 * Return an plane count and set of IDs.
1685 */
1686int drm_mode_getplane_res(struct drm_device *dev, void *data,
1687 struct drm_file *file_priv)
1688{
1689 struct drm_mode_get_plane_res *plane_resp = data;
1690 struct drm_mode_config *config;
1691 struct drm_plane *plane;
1692 uint32_t __user *plane_ptr;
1693 int copied = 0, ret = 0;
1694
1695 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1696 return -EINVAL;
1697
84849903 1698 drm_modeset_lock_all(dev);
8cf5c917
JB		 1699 config = &dev->mode_config;
1700
1701 /*
1702 * This ioctl is called twice, once to determine how much space is
1703 * needed, and the 2nd time to fill it.
1704 */
1705 if (config->num_plane &&
1706 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1707 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1708
1709 list_for_each_entry(plane, &config->plane_list, head) {
1710 if (put_user(plane->base.id, plane_ptr + copied)) {
1711 ret = -EFAULT;
1712 goto out;
1713 }
1714 copied++;
1715 }
1716 }
1717 plane_resp->count_planes = config->num_plane;
1718
1719out:
84849903 1720 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1721 return ret;
1722}
1723
1724/**
1725 * drm_mode_getplane - get plane info
1726 * @dev: DRM device
1727 * @data: ioctl data
1728 * @file_priv: DRM file info
1729 *
1730 * Return plane info, including formats supported, gamma size, any
1731 * current fb, etc.
1732 */
1733int drm_mode_getplane(struct drm_device *dev, void *data,
1734 struct drm_file *file_priv)
1735{
1736 struct drm_mode_get_plane *plane_resp = data;
1737 struct drm_mode_object *obj;
1738 struct drm_plane *plane;
1739 uint32_t __user *format_ptr;
1740 int ret = 0;
1741
1742 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1743 return -EINVAL;
1744
84849903 1745 drm_modeset_lock_all(dev);
8cf5c917
JB		 1746 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1747 DRM_MODE_OBJECT_PLANE);
1748 if (!obj) {
1749 ret = -ENOENT;
1750 goto out;
1751 }
1752 plane = obj_to_plane(obj);
1753
1754 if (plane->crtc)
1755 plane_resp->crtc_id = plane->crtc->base.id;
1756 else
1757 plane_resp->crtc_id = 0;
1758
1759 if (plane->fb)
1760 plane_resp->fb_id = plane->fb->base.id;
1761 else
1762 plane_resp->fb_id = 0;
1763
1764 plane_resp->plane_id = plane->base.id;
1765 plane_resp->possible_crtcs = plane->possible_crtcs;
1766 plane_resp->gamma_size = plane->gamma_size;
1767
1768 /*
1769 * This ioctl is called twice, once to determine how much space is
1770 * needed, and the 2nd time to fill it.
1771 */
1772 if (plane->format_count &&
1773 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1774 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1775 if (copy_to_user(format_ptr,
1776 plane->format_types,
1777 sizeof(uint32_t) * plane->format_count)) {
1778 ret = -EFAULT;
1779 goto out;
1780 }
1781 }
1782 plane_resp->count_format_types = plane->format_count;
1783
1784out:
84849903 1785 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1786 return ret;
1787}
1788
1789/**
1790 * drm_mode_setplane - set up or tear down an plane
1791 * @dev: DRM device
1792 * @data: ioctl data*
065a50ed 1793 * @file_priv: DRM file info
8cf5c917
JB		 1794 *
1795 * Set plane info, including placement, fb, scaling, and other factors.
1796 * Or pass a NULL fb to disable.
1797 */
1798int drm_mode_setplane(struct drm_device *dev, void *data,
1799 struct drm_file *file_priv)
1800{
1801 struct drm_mode_set_plane *plane_req = data;
1802 struct drm_mode_object *obj;
1803 struct drm_plane *plane;
1804 struct drm_crtc *crtc;
6c2a7532 1805 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
8cf5c917 1806 int ret = 0;
42ef8789 1807 unsigned int fb_width, fb_height;
62443be6 1808 int i;
8cf5c917
JB		 1809
1810 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1811 return -EINVAL;
1812
8cf5c917
JB		 1813 /*
1814 * First, find the plane, crtc, and fb objects. If not available,
1815 * we don't bother to call the driver.
1816 */
1817 obj = drm_mode_object_find(dev, plane_req->plane_id,
1818 DRM_MODE_OBJECT_PLANE);
1819 if (!obj) {
1820 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1821 plane_req->plane_id);
6c2a7532 1822 return -ENOENT;
8cf5c917
JB		 1823 }
1824 plane = obj_to_plane(obj);
1825
1826 /* No fb means shut it down */
1827 if (!plane_req->fb_id) {
6c2a7532
DV		 1828 drm_modeset_lock_all(dev);
1829 old_fb = plane->fb;
8cf5c917 1830 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1831 plane->crtc = NULL;
1832 plane->fb = NULL;
6c2a7532 1833 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1834 goto out;
1835 }
1836
1837 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1838 DRM_MODE_OBJECT_CRTC);
1839 if (!obj) {
1840 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1841 plane_req->crtc_id);
1842 ret = -ENOENT;
1843 goto out;
1844 }
1845 crtc = obj_to_crtc(obj);
1846
786b99ed
DV		 1847 fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
1848 if (!fb) {
8cf5c917
JB		 1849 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1850 plane_req->fb_id);
1851 ret = -ENOENT;
1852 goto out;
1853 }
8cf5c917 1854
62443be6
VS		 1855 /* Check whether this plane supports the fb pixel format. */
1856 for (i = 0; i < plane->format_count; i++)
1857 if (fb->pixel_format == plane->format_types[i])
1858 break;
1859 if (i == plane->format_count) {
6ba6d03e
VS		 1860 DRM_DEBUG_KMS("Invalid pixel format %s\n",
1861 drm_get_format_name(fb->pixel_format));
62443be6
VS		 1862 ret = -EINVAL;
1863 goto out;
1864 }
1865
42ef8789
VS		 1866 fb_width = fb->width << 16;
1867 fb_height = fb->height << 16;
1868
1869 /* Make sure source coordinates are inside the fb. */
1870 if (plane_req->src_w > fb_width ||
1871 plane_req->src_x > fb_width - plane_req->src_w ||
1872 plane_req->src_h > fb_height ||
1873 plane_req->src_y > fb_height - plane_req->src_h) {
1874 DRM_DEBUG_KMS("Invalid source coordinates "
1875 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1876 plane_req->src_w >> 16,
1877 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1878 plane_req->src_h >> 16,
1879 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1880 plane_req->src_x >> 16,
1881 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1882 plane_req->src_y >> 16,
1883 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1884 ret = -ENOSPC;
1885 goto out;
1886 }
1887
687a0400
VS		 1888 /* Give drivers some help against integer overflows */
1889 if (plane_req->crtc_w > INT_MAX ||
1890 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1891 plane_req->crtc_h > INT_MAX ||
1892 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1893 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1894 plane_req->crtc_w, plane_req->crtc_h,
1895 plane_req->crtc_x, plane_req->crtc_y);
1896 ret = -ERANGE;
1897 goto out;
1898 }
1899
6c2a7532 1900 drm_modeset_lock_all(dev);
8cf5c917
JB		 1901 ret = plane->funcs->update_plane(plane, crtc, fb,
1902 plane_req->crtc_x, plane_req->crtc_y,
1903 plane_req->crtc_w, plane_req->crtc_h,
1904 plane_req->src_x, plane_req->src_y,
1905 plane_req->src_w, plane_req->src_h);
1906 if (!ret) {
6c2a7532 1907 old_fb = plane->fb;
8cf5c917
JB		 1908 plane->crtc = crtc;
1909 plane->fb = fb;
35f8badc 1910 fb = NULL;
8cf5c917 1911 }
6c2a7532 1912 drm_modeset_unlock_all(dev);
8cf5c917
JB		 1913
1914out:
6c2a7532
DV		 1915 if (fb)
1916 drm_framebuffer_unreference(fb);
1917 if (old_fb)
1918 drm_framebuffer_unreference(old_fb);
8cf5c917
JB		 1919
1920 return ret;
1921}
1922
2d13b679
DV		 1923/**
1924 * drm_mode_set_config_internal - helper to call ->set_config
1925 * @set: modeset config to set
1926 *
1927 * This is a little helper to wrap internal calls to the ->set_config driver
1928 * interface. The only thing it adds is correct refcounting dance.
1929 */
1930int drm_mode_set_config_internal(struct drm_mode_set *set)
1931{
1932 struct drm_crtc *crtc = set->crtc;
b0d12325
DV		 1933 struct drm_framebuffer *fb, *old_fb;
1934 int ret;
1935
1936 old_fb = crtc->fb;
1937 fb = set->fb;
2d13b679 1938
b0d12325
DV		 1939 ret = crtc->funcs->set_config(set);
1940 if (ret == 0) {
1941 if (old_fb)
1942 drm_framebuffer_unreference(old_fb);
1943 if (fb)
1944 drm_framebuffer_reference(fb);
1945 }
1946
1947 return ret;
2d13b679
DV		 1948}
1949EXPORT_SYMBOL(drm_mode_set_config_internal);
1950
f453ba04
DA		 1951/**
1952 * drm_mode_setcrtc - set CRTC configuration
065a50ed
DV		 1953 * @dev: drm device for the ioctl
1954 * @data: data pointer for the ioctl
1955 * @file_priv: drm file for the ioctl call
f453ba04 1956 *
f453ba04
DA		 1957 * Build a new CRTC configuration based on user request.
1958 *
1959 * Called by the user via ioctl.
1960 *
1961 * RETURNS:
1962 * Zero on success, errno on failure.
1963 */
1964int drm_mode_setcrtc(struct drm_device *dev, void *data,
1965 struct drm_file *file_priv)
1966{
1967 struct drm_mode_config *config = &dev->mode_config;
1968 struct drm_mode_crtc *crtc_req = data;
1969 struct drm_mode_object *obj;
6653cc8d 1970 struct drm_crtc *crtc;
f453ba04
DA		 1971 struct drm_connector **connector_set = NULL, *connector;
1972 struct drm_framebuffer *fb = NULL;
1973 struct drm_display_mode *mode = NULL;
1974 struct drm_mode_set set;
1975 uint32_t __user *set_connectors_ptr;
4a1b0714 1976 int ret;
f453ba04
DA		 1977 int i;
1978
fb3b06c8
DA		 1979 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1980 return -EINVAL;
1981
1d97e915
VS		 1982 /* For some reason crtc x/y offsets are signed internally. */
1983 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1984 return -ERANGE;
1985
84849903 1986 drm_modeset_lock_all(dev);
f453ba04
DA		 1987 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1988 DRM_MODE_OBJECT_CRTC);
1989 if (!obj) {
58367ed6 1990 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 1991 ret = -EINVAL;
1992 goto out;
1993 }
1994 crtc = obj_to_crtc(obj);
9440106b 1995 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1996
1997 if (crtc_req->mode_valid) {
7c80e128 1998 int hdisplay, vdisplay;
f453ba04
DA		 1999 /* If we have a mode we need a framebuffer. */
2000 /* If we pass -1, set the mode with the currently bound fb */
2001 if (crtc_req->fb_id == -1) {
6653cc8d
VS		 2002 if (!crtc->fb) {
2003 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
2004 ret = -EINVAL;
2005 goto out;
f453ba04 2006 }
6653cc8d 2007 fb = crtc->fb;
b0d12325
DV		 2008 /* Make refcounting symmetric with the lookup path. */
2009 drm_framebuffer_reference(fb);
f453ba04 2010 } else {
786b99ed
DV		 2011 fb = drm_framebuffer_lookup(dev, crtc_req->fb_id);
2012 if (!fb) {
58367ed6
ZY		 2013 DRM_DEBUG_KMS("Unknown FB ID%d\n",
2014 crtc_req->fb_id);
f453ba04
DA		 2015 ret = -EINVAL;
2016 goto out;
2017 }
f453ba04
DA		 2018 }
2019
2020 mode = drm_mode_create(dev);
ee34ab5b
VS		 2021 if (!mode) {
2022 ret = -ENOMEM;
2023 goto out;
2024 }
2025
90367bf6
VS		 2026 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
2027 if (ret) {
2028 DRM_DEBUG_KMS("Invalid mode\n");
2029 goto out;
2030 }
2031
f453ba04 2032 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
5f61bb42 2033
7c80e128
RC		 2034 hdisplay = mode->hdisplay;
2035 vdisplay = mode->vdisplay;
2036
2037 if (crtc->invert_dimensions)
2038 swap(hdisplay, vdisplay);
2039
2040 if (hdisplay > fb->width ||
2041 vdisplay > fb->height ||
2042 crtc_req->x > fb->width - hdisplay ||
2043 crtc_req->y > fb->height - vdisplay) {
2044 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
2045 fb->width, fb->height,
2046 hdisplay, vdisplay, crtc_req->x, crtc_req->y,
2047 crtc->invert_dimensions ? " (inverted)" : "");
5f61bb42
VS		 2048 ret = -ENOSPC;
2049 goto out;
2050 }
f453ba04
DA		 2051 }
2052
2053 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 2054 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 2055 ret = -EINVAL;
2056 goto out;
2057 }
2058
7781de74 2059 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 2060 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 2061 crtc_req->count_connectors);
2062 ret = -EINVAL;
2063 goto out;
2064 }
2065
2066 if (crtc_req->count_connectors > 0) {
2067 u32 out_id;
2068
2069 /* Avoid unbounded kernel memory allocation */
2070 if (crtc_req->count_connectors > config->num_connector) {
2071 ret = -EINVAL;
2072 goto out;
2073 }
2074
2075 connector_set = kmalloc(crtc_req->count_connectors *
2076 sizeof(struct drm_connector *),
2077 GFP_KERNEL);
2078 if (!connector_set) {
2079 ret = -ENOMEM;
2080 goto out;
2081 }
2082
2083 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 2084 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 2085 if (get_user(out_id, &set_connectors_ptr[i])) {
2086 ret = -EFAULT;
2087 goto out;
2088 }
2089
2090 obj = drm_mode_object_find(dev, out_id,
2091 DRM_MODE_OBJECT_CONNECTOR);
2092 if (!obj) {
58367ed6
ZY		 2093 DRM_DEBUG_KMS("Connector id %d unknown\n",
2094 out_id);
f453ba04
DA		 2095 ret = -EINVAL;
2096 goto out;
2097 }
2098 connector = obj_to_connector(obj);
9440106b
JG		 2099 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
2100 connector->base.id,
2101 drm_get_connector_name(connector));
f453ba04
DA		 2102
2103 connector_set[i] = connector;
2104 }
2105 }
2106
2107 set.crtc = crtc;
2108 set.x = crtc_req->x;
2109 set.y = crtc_req->y;
2110 set.mode = mode;
2111 set.connectors = connector_set;
2112 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 2113 set.fb = fb;
2d13b679 2114 ret = drm_mode_set_config_internal(&set);
f453ba04
DA		 2115
2116out:
b0d12325
DV		 2117 if (fb)
2118 drm_framebuffer_unreference(fb);
2119
f453ba04 2120 kfree(connector_set);
ee34ab5b 2121 drm_mode_destroy(dev, mode);
84849903 2122 drm_modeset_unlock_all(dev);
f453ba04
DA		 2123 return ret;
2124}
2125
2126int drm_mode_cursor_ioctl(struct drm_device *dev,
2127 void *data, struct drm_file *file_priv)
2128{
2129 struct drm_mode_cursor *req = data;
2130 struct drm_mode_object *obj;
2131 struct drm_crtc *crtc;
2132 int ret = 0;
2133
fb3b06c8
DA		 2134 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2135 return -EINVAL;
2136
7c4eaca4 2137 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
f453ba04 2138 return -EINVAL;
f453ba04 2139
e0c8463a 2140 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 2141 if (!obj) {
58367ed6 2142 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
dac35663 2143 return -EINVAL;
f453ba04
DA		 2144 }
2145 crtc = obj_to_crtc(obj);
2146
dac35663 2147 mutex_lock(&crtc->mutex);
f453ba04
DA		 2148 if (req->flags & DRM_MODE_CURSOR_BO) {
2149 if (!crtc->funcs->cursor_set) {
f453ba04
DA		 2150 ret = -ENXIO;
2151 goto out;
2152 }
2153 /* Turns off the cursor if handle is 0 */
2154 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2155 req->width, req->height);
2156 }
2157
2158 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2159 if (crtc->funcs->cursor_move) {
2160 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2161 } else {
f453ba04
DA		 2162 ret = -EFAULT;
2163 goto out;
2164 }
2165 }
2166out:
dac35663
DV		 2167 mutex_unlock(&crtc->mutex);
2168
f453ba04
DA		 2169 return ret;
2170}
2171
308e5bcb
JB		 2172/* Original addfb only supported RGB formats, so figure out which one */
2173uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2174{
2175 uint32_t fmt;
2176
2177 switch (bpp) {
2178 case 8:
d84f031b 2179 fmt = DRM_FORMAT_C8;
308e5bcb
JB		 2180 break;
2181 case 16:
2182 if (depth == 15)
04b3924d 2183 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 2184 else
04b3924d 2185 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 2186 break;
2187 case 24:
04b3924d 2188 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 2189 break;
2190 case 32:
2191 if (depth == 24)
04b3924d 2192 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 2193 else if (depth == 30)
04b3924d 2194 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 2195 else
04b3924d 2196 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 2197 break;
2198 default:
04b3924d
VS		 2199 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2200 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 2201 break;
2202 }
2203
2204 return fmt;
2205}
2206EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2207
f453ba04
DA		 2208/**
2209 * drm_mode_addfb - add an FB to the graphics configuration
065a50ed
DV		 2210 * @dev: drm device for the ioctl
2211 * @data: data pointer for the ioctl
2212 * @file_priv: drm file for the ioctl call
f453ba04 2213 *
f453ba04
DA		 2214 * Add a new FB to the specified CRTC, given a user request.
2215 *
2216 * Called by the user via ioctl.
2217 *
2218 * RETURNS:
2219 * Zero on success, errno on failure.
2220 */
2221int drm_mode_addfb(struct drm_device *dev,
2222 void *data, struct drm_file *file_priv)
2223{
308e5bcb
JB		 2224 struct drm_mode_fb_cmd *or = data;
2225 struct drm_mode_fb_cmd2 r = {};
2226 struct drm_mode_config *config = &dev->mode_config;
2227 struct drm_framebuffer *fb;
2228 int ret = 0;
2229
2230 /* Use new struct with format internally */
2231 r.fb_id = or->fb_id;
2232 r.width = or->width;
2233 r.height = or->height;
2234 r.pitches[0] = or->pitch;
2235 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2236 r.handles[0] = or->handle;
2237
2238 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2239 return -EINVAL;
2240
acb4b992 2241 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2242 return -EINVAL;
acb4b992
JB		 2243
2244 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2245 return -EINVAL;
308e5bcb 2246
308e5bcb
JB		 2247 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2248 if (IS_ERR(fb)) {
1aa1b11c 2249 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2250 return PTR_ERR(fb);
308e5bcb
JB		 2251 }
2252
4b096ac1 2253 mutex_lock(&file_priv->fbs_lock);
308e5bcb
JB		 2254 or->fb_id = fb->base.id;
2255 list_add(&fb->filp_head, &file_priv->fbs);
2256 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2257 mutex_unlock(&file_priv->fbs_lock);
4b096ac1 2258
308e5bcb
JB		 2259 return ret;
2260}
2261
cff91b62 2262static int format_check(const struct drm_mode_fb_cmd2 *r)
935b5977
VS		 2263{
2264 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2265
2266 switch (format) {
2267 case DRM_FORMAT_C8:
2268 case DRM_FORMAT_RGB332:
2269 case DRM_FORMAT_BGR233:
2270 case DRM_FORMAT_XRGB4444:
2271 case DRM_FORMAT_XBGR4444:
2272 case DRM_FORMAT_RGBX4444:
2273 case DRM_FORMAT_BGRX4444:
2274 case DRM_FORMAT_ARGB4444:
2275 case DRM_FORMAT_ABGR4444:
2276 case DRM_FORMAT_RGBA4444:
2277 case DRM_FORMAT_BGRA4444:
2278 case DRM_FORMAT_XRGB1555:
2279 case DRM_FORMAT_XBGR1555:
2280 case DRM_FORMAT_RGBX5551:
2281 case DRM_FORMAT_BGRX5551:
2282 case DRM_FORMAT_ARGB1555:
2283 case DRM_FORMAT_ABGR1555:
2284 case DRM_FORMAT_RGBA5551:
2285 case DRM_FORMAT_BGRA5551:
2286 case DRM_FORMAT_RGB565:
2287 case DRM_FORMAT_BGR565:
2288 case DRM_FORMAT_RGB888:
2289 case DRM_FORMAT_BGR888:
2290 case DRM_FORMAT_XRGB8888:
2291 case DRM_FORMAT_XBGR8888:
2292 case DRM_FORMAT_RGBX8888:
2293 case DRM_FORMAT_BGRX8888:
2294 case DRM_FORMAT_ARGB8888:
2295 case DRM_FORMAT_ABGR8888:
2296 case DRM_FORMAT_RGBA8888:
2297 case DRM_FORMAT_BGRA8888:
2298 case DRM_FORMAT_XRGB2101010:
2299 case DRM_FORMAT_XBGR2101010:
2300 case DRM_FORMAT_RGBX1010102:
2301 case DRM_FORMAT_BGRX1010102:
2302 case DRM_FORMAT_ARGB2101010:
2303 case DRM_FORMAT_ABGR2101010:
2304 case DRM_FORMAT_RGBA1010102:
2305 case DRM_FORMAT_BGRA1010102:
2306 case DRM_FORMAT_YUYV:
2307 case DRM_FORMAT_YVYU:
2308 case DRM_FORMAT_UYVY:
2309 case DRM_FORMAT_VYUY:
2310 case DRM_FORMAT_AYUV:
2311 case DRM_FORMAT_NV12:
2312 case DRM_FORMAT_NV21:
2313 case DRM_FORMAT_NV16:
2314 case DRM_FORMAT_NV61:
ba623f6a
LP		 2315 case DRM_FORMAT_NV24:
2316 case DRM_FORMAT_NV42:
935b5977
VS		 2317 case DRM_FORMAT_YUV410:
2318 case DRM_FORMAT_YVU410:
2319 case DRM_FORMAT_YUV411:
2320 case DRM_FORMAT_YVU411:
2321 case DRM_FORMAT_YUV420:
2322 case DRM_FORMAT_YVU420:
2323 case DRM_FORMAT_YUV422:
2324 case DRM_FORMAT_YVU422:
2325 case DRM_FORMAT_YUV444:
2326 case DRM_FORMAT_YVU444:
2327 return 0;
2328 default:
2329 return -EINVAL;
2330 }
2331}
2332
cff91b62 2333static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
d1b45d5f
VS		 2334{
2335 int ret, hsub, vsub, num_planes, i;
2336
2337 ret = format_check(r);
2338 if (ret) {
6ba6d03e
VS		 2339 DRM_DEBUG_KMS("bad framebuffer format %s\n",
2340 drm_get_format_name(r->pixel_format));
d1b45d5f
VS		 2341 return ret;
2342 }
2343
2344 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2345 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2346 num_planes = drm_format_num_planes(r->pixel_format);
2347
2348 if (r->width == 0 || r->width % hsub) {
1aa1b11c 2349 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
d1b45d5f
VS		 2350 return -EINVAL;
2351 }
2352
2353 if (r->height == 0 || r->height % vsub) {
1aa1b11c 2354 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
d1b45d5f
VS		 2355 return -EINVAL;
2356 }
2357
2358 for (i = 0; i < num_planes; i++) {
2359 unsigned int width = r->width / (i != 0 ? hsub : 1);
b180b5d1
VS		 2360 unsigned int height = r->height / (i != 0 ? vsub : 1);
2361 unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i);
d1b45d5f
VS		 2362
2363 if (!r->handles[i]) {
1aa1b11c 2364 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
d1b45d5f
VS		 2365 return -EINVAL;
2366 }
2367
b180b5d1
VS		 2368 if ((uint64_t) width * cpp > UINT_MAX)
2369 return -ERANGE;
2370
2371 if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX)
2372 return -ERANGE;
2373
2374 if (r->pitches[i] < width * cpp) {
1aa1b11c 2375 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
d1b45d5f
VS		 2376 return -EINVAL;
2377 }
2378 }
2379
2380 return 0;
2381}
2382
308e5bcb
JB		 2383/**
2384 * drm_mode_addfb2 - add an FB to the graphics configuration
065a50ed
DV		 2385 * @dev: drm device for the ioctl
2386 * @data: data pointer for the ioctl
2387 * @file_priv: drm file for the ioctl call
308e5bcb 2388 *
308e5bcb
JB		 2389 * Add a new FB to the specified CRTC, given a user request with format.
2390 *
2391 * Called by the user via ioctl.
2392 *
2393 * RETURNS:
2394 * Zero on success, errno on failure.
2395 */
2396int drm_mode_addfb2(struct drm_device *dev,
2397 void *data, struct drm_file *file_priv)
2398{
2399 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2400 struct drm_mode_config *config = &dev->mode_config;
2401 struct drm_framebuffer *fb;
4a1b0714 2402 int ret;
f453ba04 2403
fb3b06c8
DA		 2404 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2405 return -EINVAL;
2406
e3cc3520
VS		 2407 if (r->flags & ~DRM_MODE_FB_INTERLACED) {
2408 DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
2409 return -EINVAL;
2410 }
2411
f453ba04 2412 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1aa1b11c 2413 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
8cf5c917 2414 r->width, config->min_width, config->max_width);
f453ba04
DA		 2415 return -EINVAL;
2416 }
2417 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1aa1b11c 2418 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
8cf5c917 2419 r->height, config->min_height, config->max_height);
f453ba04
DA		 2420 return -EINVAL;
2421 }
2422
d1b45d5f
VS		 2423 ret = framebuffer_check(r);
2424 if (ret)
935b5977 2425 return ret;
935b5977 2426
f453ba04 2427 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2428 if (IS_ERR(fb)) {
1aa1b11c 2429 DRM_DEBUG_KMS("could not create framebuffer\n");
4b096ac1 2430 return PTR_ERR(fb);
f453ba04
DA		 2431 }
2432
4b096ac1 2433 mutex_lock(&file_priv->fbs_lock);
e0c8463a 2434 r->fb_id = fb->base.id;
f453ba04 2435 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2436 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
4b096ac1 2437 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2438
4b096ac1 2439
f453ba04
DA		 2440 return ret;
2441}
2442
2443/**
2444 * drm_mode_rmfb - remove an FB from the configuration
065a50ed
DV		 2445 * @dev: drm device for the ioctl
2446 * @data: data pointer for the ioctl
2447 * @file_priv: drm file for the ioctl call
f453ba04 2448 *
f453ba04
DA		 2449 * Remove the FB specified by the user.
2450 *
2451 * Called by the user via ioctl.
2452 *
2453 * RETURNS:
2454 * Zero on success, errno on failure.
2455 */
2456int drm_mode_rmfb(struct drm_device *dev,
2457 void *data, struct drm_file *file_priv)
2458{
f453ba04
DA		 2459 struct drm_framebuffer *fb = NULL;
2460 struct drm_framebuffer *fbl = NULL;
2461 uint32_t *id = data;
f453ba04
DA		 2462 int found = 0;
2463
fb3b06c8
DA		 2464 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2465 return -EINVAL;
2466
4b096ac1 2467 mutex_lock(&file_priv->fbs_lock);
2b677e8c
DV		 2468 mutex_lock(&dev->mode_config.fb_lock);
2469 fb = __drm_framebuffer_lookup(dev, *id);
2470 if (!fb)
2471 goto fail_lookup;
2472
f453ba04
DA		 2473 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2474 if (fb == fbl)
2475 found = 1;
2b677e8c
DV		 2476 if (!found)
2477 goto fail_lookup;
2478
2479 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2480 __drm_framebuffer_unregister(dev, fb);
f453ba04 2481
4b096ac1 2482 list_del_init(&fb->filp_head);
2b677e8c 2483 mutex_unlock(&dev->mode_config.fb_lock);
4b096ac1 2484 mutex_unlock(&file_priv->fbs_lock);
f453ba04 2485
4b096ac1 2486 drm_framebuffer_remove(fb);
4b096ac1 2487
2b677e8c
DV		 2488 return 0;
2489
2490fail_lookup:
2491 mutex_unlock(&dev->mode_config.fb_lock);
2492 mutex_unlock(&file_priv->fbs_lock);
2493
2494 return -EINVAL;
f453ba04
DA		 2495}
2496
2497/**
2498 * drm_mode_getfb - get FB info
065a50ed
DV		 2499 * @dev: drm device for the ioctl
2500 * @data: data pointer for the ioctl
2501 * @file_priv: drm file for the ioctl call
f453ba04 2502 *
f453ba04
DA		 2503 * Lookup the FB given its ID and return info about it.
2504 *
2505 * Called by the user via ioctl.
2506 *
2507 * RETURNS:
2508 * Zero on success, errno on failure.
2509 */
2510int drm_mode_getfb(struct drm_device *dev,
2511 void *data, struct drm_file *file_priv)
2512{
2513 struct drm_mode_fb_cmd *r = data;
f453ba04 2514 struct drm_framebuffer *fb;
58c0dca1 2515 int ret;
f453ba04 2516
fb3b06c8
DA		 2517 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2518 return -EINVAL;
2519
786b99ed 2520 fb = drm_framebuffer_lookup(dev, r->fb_id);
58c0dca1
DV		 2521 if (!fb)
2522 return -EINVAL;
f453ba04
DA		 2523
2524 r->height = fb->height;
2525 r->width = fb->width;
2526 r->depth = fb->depth;
2527 r->bpp = fb->bits_per_pixel;
01f2c773 2528 r->pitch = fb->pitches[0];
af26ef3b
DV		 2529 if (fb->funcs->create_handle)
2530 ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
2531 else
2532 ret = -ENODEV;
f453ba04 2533
58c0dca1
DV		 2534 drm_framebuffer_unreference(fb);
2535
f453ba04
DA		 2536 return ret;
2537}
2538
884840aa
JB		 2539int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2540 void *data, struct drm_file *file_priv)
2541{
2542 struct drm_clip_rect __user *clips_ptr;
2543 struct drm_clip_rect *clips = NULL;
2544 struct drm_mode_fb_dirty_cmd *r = data;
884840aa
JB		 2545 struct drm_framebuffer *fb;
2546 unsigned flags;
2547 int num_clips;
4a1b0714 2548 int ret;
884840aa 2549
fb3b06c8
DA		 2550 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2551 return -EINVAL;
2552
786b99ed 2553 fb = drm_framebuffer_lookup(dev, r->fb_id);
4ccf097f
DV		 2554 if (!fb)
2555 return -EINVAL;
884840aa
JB		 2556
2557 num_clips = r->num_clips;
81f6c7f8 2558 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2559
2560 if (!num_clips != !clips_ptr) {
2561 ret = -EINVAL;
2562 goto out_err1;
2563 }
2564
2565 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2566
2567 /* If userspace annotates copy, clips must come in pairs */
2568 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2569 ret = -EINVAL;
2570 goto out_err1;
2571 }
2572
2573 if (num_clips && clips_ptr) {
a5cd3351
XW		 2574 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2575 ret = -EINVAL;
2576 goto out_err1;
2577 }
884840aa
JB		 2578 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2579 if (!clips) {
2580 ret = -ENOMEM;
2581 goto out_err1;
2582 }
2583
2584 ret = copy_from_user(clips, clips_ptr,
2585 num_clips * sizeof(*clips));
e902a358
DC		 2586 if (ret) {
2587 ret = -EFAULT;
884840aa 2588 goto out_err2;
e902a358 2589 }
884840aa
JB		 2590 }
2591
2592 if (fb->funcs->dirty) {
4ccf097f 2593 drm_modeset_lock_all(dev);
02b00162
TH		 2594 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2595 clips, num_clips);
4ccf097f 2596 drm_modeset_unlock_all(dev);
884840aa
JB		 2597 } else {
2598 ret = -ENOSYS;
884840aa
JB		 2599 }
2600
2601out_err2:
2602 kfree(clips);
2603out_err1:
4ccf097f
DV		 2604 drm_framebuffer_unreference(fb);
2605
884840aa
JB		 2606 return ret;
2607}
2608
2609
f453ba04
DA		 2610/**
2611 * drm_fb_release - remove and free the FBs on this file
065a50ed 2612 * @priv: drm file for the ioctl
f453ba04 2613 *
f453ba04
DA		 2614 * Destroy all the FBs associated with @filp.
2615 *
2616 * Called by the user via ioctl.
2617 *
2618 * RETURNS:
2619 * Zero on success, errno on failure.
2620 */
ea39f835 2621void drm_fb_release(struct drm_file *priv)
f453ba04 2622{
f453ba04
DA		 2623 struct drm_device *dev = priv->minor->dev;
2624 struct drm_framebuffer *fb, *tfb;
2625
4b096ac1 2626 mutex_lock(&priv->fbs_lock);
f453ba04 2627 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2b677e8c
DV		 2628
2629 mutex_lock(&dev->mode_config.fb_lock);
2630 /* Mark fb as reaped, we still have a ref from fpriv->fbs. */
2631 __drm_framebuffer_unregister(dev, fb);
2632 mutex_unlock(&dev->mode_config.fb_lock);
2633
4b096ac1 2634 list_del_init(&fb->filp_head);
2b677e8c
DV		 2635
2636 /* This will also drop the fpriv->fbs reference. */
f7eff60e 2637 drm_framebuffer_remove(fb);
f453ba04 2638 }
4b096ac1 2639 mutex_unlock(&priv->fbs_lock);
f453ba04
DA		 2640}
2641
f453ba04
DA		 2642struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2643 const char *name, int num_values)
2644{
2645 struct drm_property *property = NULL;
6bfc56aa 2646 int ret;
f453ba04
DA		 2647
2648 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2649 if (!property)
2650 return NULL;
2651
2652 if (num_values) {
2653 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2654 if (!property->values)
2655 goto fail;
2656 }
2657
6bfc56aa
VS		 2658 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2659 if (ret)
2660 goto fail;
2661
f453ba04
DA		 2662 property->flags = flags;
2663 property->num_values = num_values;
2664 INIT_LIST_HEAD(&property->enum_blob_list);
2665
471dd2ef 2666 if (name) {
f453ba04 2667 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2668 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2669 }
f453ba04
DA		 2670
2671 list_add_tail(&property->head, &dev->mode_config.property_list);
2672 return property;
2673fail:
6bfc56aa 2674 kfree(property->values);
f453ba04
DA		 2675 kfree(property);
2676 return NULL;
2677}
2678EXPORT_SYMBOL(drm_property_create);
2679
4a67d391
SH		 2680struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2681 const char *name,
2682 const struct drm_prop_enum_list *props,
2683 int num_values)
2684{
2685 struct drm_property *property;
2686 int i, ret;
2687
2688 flags |= DRM_MODE_PROP_ENUM;
2689
2690 property = drm_property_create(dev, flags, name, num_values);
2691 if (!property)
2692 return NULL;
2693
2694 for (i = 0; i < num_values; i++) {
2695 ret = drm_property_add_enum(property, i,
2696 props[i].type,
2697 props[i].name);
2698 if (ret) {
2699 drm_property_destroy(dev, property);
2700 return NULL;
2701 }
2702 }
2703
2704 return property;
2705}
2706EXPORT_SYMBOL(drm_property_create_enum);
2707
49e27545
RC		 2708struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2709 int flags, const char *name,
2710 const struct drm_prop_enum_list *props,
2711 int num_values)
2712{
2713 struct drm_property *property;
2714 int i, ret;
2715
2716 flags |= DRM_MODE_PROP_BITMASK;
2717
2718 property = drm_property_create(dev, flags, name, num_values);
2719 if (!property)
2720 return NULL;
2721
2722 for (i = 0; i < num_values; i++) {
2723 ret = drm_property_add_enum(property, i,
2724 props[i].type,
2725 props[i].name);
2726 if (ret) {
2727 drm_property_destroy(dev, property);
2728 return NULL;
2729 }
2730 }
2731
2732 return property;
2733}
2734EXPORT_SYMBOL(drm_property_create_bitmask);
2735
d9bc3c02
SH		 2736struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2737 const char *name,
2738 uint64_t min, uint64_t max)
2739{
2740 struct drm_property *property;
2741
2742 flags |= DRM_MODE_PROP_RANGE;
2743
2744 property = drm_property_create(dev, flags, name, 2);
2745 if (!property)
2746 return NULL;
2747
2748 property->values[0] = min;
2749 property->values[1] = max;
2750
2751 return property;
2752}
2753EXPORT_SYMBOL(drm_property_create_range);
2754
f453ba04
DA		 2755int drm_property_add_enum(struct drm_property *property, int index,
2756 uint64_t value, const char *name)
2757{
2758 struct drm_property_enum *prop_enum;
2759
49e27545
RC		 2760 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2761 return -EINVAL;
2762
2763 /*
2764 * Bitmask enum properties have the additional constraint of values
2765 * from 0 to 63
2766 */
2767 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
f453ba04
DA		 2768 return -EINVAL;
2769
2770 if (!list_empty(&property->enum_blob_list)) {
2771 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2772 if (prop_enum->value == value) {
2773 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2774 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2775 return 0;
2776 }
2777 }
2778 }
2779
2780 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2781 if (!prop_enum)
2782 return -ENOMEM;
2783
2784 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2785 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2786 prop_enum->value = value;
2787
2788 property->values[index] = value;
2789 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2790 return 0;
2791}
2792EXPORT_SYMBOL(drm_property_add_enum);
2793
2794void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2795{
2796 struct drm_property_enum *prop_enum, *pt;
2797
2798 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2799 list_del(&prop_enum->head);
2800 kfree(prop_enum);
2801 }
2802
2803 if (property->num_values)
2804 kfree(property->values);
2805 drm_mode_object_put(dev, &property->base);
2806 list_del(&property->head);
2807 kfree(property);
2808}
2809EXPORT_SYMBOL(drm_property_destroy);
2810
c543188a
PZ		 2811void drm_object_attach_property(struct drm_mode_object *obj,
2812 struct drm_property *property,
2813 uint64_t init_val)
2814{
7f88a9be 2815 int count = obj->properties->count;
c543188a 2816
7f88a9be
PZ		 2817 if (count == DRM_OBJECT_MAX_PROPERTY) {
2818 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2819 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2820 "you see this message on the same object type.\n",
2821 obj->type);
2822 return;
c543188a
PZ		 2823 }
2824
7f88a9be
PZ		 2825 obj->properties->ids[count] = property->base.id;
2826 obj->properties->values[count] = init_val;
2827 obj->properties->count++;
c543188a
PZ		 2828}
2829EXPORT_SYMBOL(drm_object_attach_property);
2830
2831int drm_object_property_set_value(struct drm_mode_object *obj,
2832 struct drm_property *property, uint64_t val)
2833{
2834 int i;
2835
7f88a9be 2836 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 2837 if (obj->properties->ids[i] == property->base.id) {
2838 obj->properties->values[i] = val;
2839 return 0;
2840 }
2841 }
2842
2843 return -EINVAL;
2844}
2845EXPORT_SYMBOL(drm_object_property_set_value);
2846
2847int drm_object_property_get_value(struct drm_mode_object *obj,
2848 struct drm_property *property, uint64_t *val)
2849{
2850 int i;
2851
7f88a9be 2852 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 2853 if (obj->properties->ids[i] == property->base.id) {
2854 *val = obj->properties->values[i];
2855 return 0;
2856 }
2857 }
2858
2859 return -EINVAL;
2860}
2861EXPORT_SYMBOL(drm_object_property_get_value);
2862
f453ba04
DA		 2863int drm_mode_getproperty_ioctl(struct drm_device *dev,
2864 void *data, struct drm_file *file_priv)
2865{
2866 struct drm_mode_object *obj;
2867 struct drm_mode_get_property *out_resp = data;
2868 struct drm_property *property;
2869 int enum_count = 0;
2870 int blob_count = 0;
2871 int value_count = 0;
2872 int ret = 0, i;
2873 int copied;
2874 struct drm_property_enum *prop_enum;
2875 struct drm_mode_property_enum __user *enum_ptr;
2876 struct drm_property_blob *prop_blob;
81f6c7f8 2877 uint32_t __user *blob_id_ptr;
f453ba04
DA		 2878 uint64_t __user *values_ptr;
2879 uint32_t __user *blob_length_ptr;
2880
fb3b06c8
DA		 2881 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2882 return -EINVAL;
2883
84849903 2884 drm_modeset_lock_all(dev);
f453ba04
DA		 2885 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2886 if (!obj) {
2887 ret = -EINVAL;
2888 goto done;
2889 }
2890 property = obj_to_property(obj);
2891
49e27545 2892 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 2893 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2894 enum_count++;
2895 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2896 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2897 blob_count++;
2898 }
2899
2900 value_count = property->num_values;
2901
2902 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2903 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2904 out_resp->flags = property->flags;
2905
2906 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 2907 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 2908 for (i = 0; i < value_count; i++) {
2909 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2910 ret = -EFAULT;
2911 goto done;
2912 }
2913 }
2914 }
2915 out_resp->count_values = value_count;
2916
49e27545 2917 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 2918 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2919 copied = 0;
81f6c7f8 2920 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 2921 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2922
2923 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2924 ret = -EFAULT;
2925 goto done;
2926 }
2927
2928 if (copy_to_user(&enum_ptr[copied].name,
2929 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2930 ret = -EFAULT;
2931 goto done;
2932 }
2933 copied++;
2934 }
2935 }
2936 out_resp->count_enum_blobs = enum_count;
2937 }
2938
2939 if (property->flags & DRM_MODE_PROP_BLOB) {
2940 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2941 copied = 0;
81f6c7f8
VS		 2942 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2943 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 2944
2945 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2946 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2947 ret = -EFAULT;
2948 goto done;
2949 }
2950
2951 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2952 ret = -EFAULT;
2953 goto done;
2954 }
2955
2956 copied++;
2957 }
2958 }
2959 out_resp->count_enum_blobs = blob_count;
2960 }
2961done:
84849903 2962 drm_modeset_unlock_all(dev);
f453ba04
DA		 2963 return ret;
2964}
2965
2966static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2967 void *data)
2968{
2969 struct drm_property_blob *blob;
6bfc56aa 2970 int ret;
f453ba04
DA		 2971
2972 if (!length || !data)
2973 return NULL;
2974
2975 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2976 if (!blob)
2977 return NULL;
2978
6bfc56aa
VS		 2979 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2980 if (ret) {
2981 kfree(blob);
2982 return NULL;
2983 }
2984
f453ba04
DA		 2985 blob->length = length;
2986
2987 memcpy(blob->data, data, length);
2988
f453ba04
DA		 2989 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2990 return blob;
2991}
2992
2993static void drm_property_destroy_blob(struct drm_device *dev,
2994 struct drm_property_blob *blob)
2995{
2996 drm_mode_object_put(dev, &blob->base);
2997 list_del(&blob->head);
2998 kfree(blob);
2999}
3000
3001int drm_mode_getblob_ioctl(struct drm_device *dev,
3002 void *data, struct drm_file *file_priv)
3003{
3004 struct drm_mode_object *obj;
3005 struct drm_mode_get_blob *out_resp = data;
3006 struct drm_property_blob *blob;
3007 int ret = 0;
81f6c7f8 3008 void __user *blob_ptr;
f453ba04 3009
fb3b06c8
DA		 3010 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3011 return -EINVAL;
3012
84849903 3013 drm_modeset_lock_all(dev);
f453ba04
DA		 3014 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3015 if (!obj) {
3016 ret = -EINVAL;
3017 goto done;
3018 }
3019 blob = obj_to_blob(obj);
3020
3021 if (out_resp->length == blob->length) {
81f6c7f8 3022 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 3023 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3024 ret = -EFAULT;
3025 goto done;
3026 }
3027 }
3028 out_resp->length = blob->length;
3029
3030done:
84849903 3031 drm_modeset_unlock_all(dev);
f453ba04
DA		 3032 return ret;
3033}
3034
3035int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3036 struct edid *edid)
3037{
3038 struct drm_device *dev = connector->dev;
4a1b0714 3039 int ret, size;
f453ba04
DA		 3040
3041 if (connector->edid_blob_ptr)
3042 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3043
3044 /* Delete edid, when there is none. */
3045 if (!edid) {
3046 connector->edid_blob_ptr = NULL;
58495563 3047 ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0);
f453ba04
DA		 3048 return ret;
3049 }
3050
7466f4cc
AJ		 3051 size = EDID_LENGTH * (1 + edid->extensions);
3052 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3053 size, edid);
e655d122
SK		 3054 if (!connector->edid_blob_ptr)
3055 return -EINVAL;
f453ba04 3056
58495563 3057 ret = drm_object_property_set_value(&connector->base,
f453ba04
DA		 3058 dev->mode_config.edid_property,
3059 connector->edid_blob_ptr->base.id);
3060
3061 return ret;
3062}
3063EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3064
26a34815 3065static bool drm_property_change_is_valid(struct drm_property *property,
592c20ee 3066 uint64_t value)
26a34815
PZ		 3067{
3068 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3069 return false;
3070 if (property->flags & DRM_MODE_PROP_RANGE) {
3071 if (value < property->values[0] || value > property->values[1])
3072 return false;
3073 return true;
49e27545
RC		 3074 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3075 int i;
592c20ee 3076 uint64_t valid_mask = 0;
49e27545
RC		 3077 for (i = 0; i < property->num_values; i++)
3078 valid_mask |= (1ULL << property->values[i]);
3079 return !(value & ~valid_mask);
c4a56750
VS		 3080 } else if (property->flags & DRM_MODE_PROP_BLOB) {
3081 /* Only the driver knows */
3082 return true;
26a34815
PZ		 3083 } else {
3084 int i;
3085 for (i = 0; i < property->num_values; i++)
3086 if (property->values[i] == value)
3087 return true;
3088 return false;
3089 }
3090}
3091
f453ba04
DA		 3092int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3093 void *data, struct drm_file *file_priv)
3094{
0057d8dd
PZ		 3095 struct drm_mode_connector_set_property *conn_set_prop = data;
3096 struct drm_mode_obj_set_property obj_set_prop = {
3097 .value = conn_set_prop->value,
3098 .prop_id = conn_set_prop->prop_id,
3099 .obj_id = conn_set_prop->connector_id,
3100 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3101 };
fb3b06c8 3102
0057d8dd
PZ		 3103 /* It does all the locking and checking we need */
3104 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
f453ba04
DA		 3105}
3106
c543188a
PZ		 3107static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3108 struct drm_property *property,
3109 uint64_t value)
3110{
3111 int ret = -EINVAL;
3112 struct drm_connector *connector = obj_to_connector(obj);
3113
3114 /* Do DPMS ourselves */
3115 if (property == connector->dev->mode_config.dpms_property) {
3116 if (connector->funcs->dpms)
3117 (*connector->funcs->dpms)(connector, (int)value);
3118 ret = 0;
3119 } else if (connector->funcs->set_property)
3120 ret = connector->funcs->set_property(connector, property, value);
3121
3122 /* store the property value if successful */
3123 if (!ret)
58495563 3124 drm_object_property_set_value(&connector->base, property, value);
c543188a
PZ		 3125 return ret;
3126}
3127
bffd9de0
PZ		 3128static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3129 struct drm_property *property,
3130 uint64_t value)
3131{
3132 int ret = -EINVAL;
3133 struct drm_crtc *crtc = obj_to_crtc(obj);
3134
3135 if (crtc->funcs->set_property)
3136 ret = crtc->funcs->set_property(crtc, property, value);
3137 if (!ret)
3138 drm_object_property_set_value(obj, property, value);
3139
3140 return ret;
3141}
3142
4d93914a
RC		 3143static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3144 struct drm_property *property,
3145 uint64_t value)
3146{
3147 int ret = -EINVAL;
3148 struct drm_plane *plane = obj_to_plane(obj);
3149
3150 if (plane->funcs->set_property)
3151 ret = plane->funcs->set_property(plane, property, value);
3152 if (!ret)
3153 drm_object_property_set_value(obj, property, value);
3154
3155 return ret;
3156}
3157
c543188a
PZ		 3158int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3159 struct drm_file *file_priv)
3160{
3161 struct drm_mode_obj_get_properties *arg = data;
3162 struct drm_mode_object *obj;
3163 int ret = 0;
3164 int i;
3165 int copied = 0;
3166 int props_count = 0;
3167 uint32_t __user *props_ptr;
3168 uint64_t __user *prop_values_ptr;
3169
3170 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3171 return -EINVAL;
3172
84849903 3173 drm_modeset_lock_all(dev);
c543188a
PZ		 3174
3175 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3176 if (!obj) {
3177 ret = -EINVAL;
3178 goto out;
3179 }
3180 if (!obj->properties) {
3181 ret = -EINVAL;
3182 goto out;
3183 }
3184
7f88a9be 3185 props_count = obj->properties->count;
c543188a
PZ		 3186
3187 /* This ioctl is called twice, once to determine how much space is
3188 * needed, and the 2nd time to fill it. */
3189 if ((arg->count_props >= props_count) && props_count) {
3190 copied = 0;
3191 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3192 prop_values_ptr = (uint64_t __user *)(unsigned long)
3193 (arg->prop_values_ptr);
3194 for (i = 0; i < props_count; i++) {
3195 if (put_user(obj->properties->ids[i],
3196 props_ptr + copied)) {
3197 ret = -EFAULT;
3198 goto out;
3199 }
3200 if (put_user(obj->properties->values[i],
3201 prop_values_ptr + copied)) {
3202 ret = -EFAULT;
3203 goto out;
3204 }
3205 copied++;
3206 }
3207 }
3208 arg->count_props = props_count;
3209out:
84849903 3210 drm_modeset_unlock_all(dev);
c543188a
PZ		 3211 return ret;
3212}
3213
3214int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3215 struct drm_file *file_priv)
3216{
3217 struct drm_mode_obj_set_property *arg = data;
3218 struct drm_mode_object *arg_obj;
3219 struct drm_mode_object *prop_obj;
3220 struct drm_property *property;
3221 int ret = -EINVAL;
3222 int i;
3223
3224 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3225 return -EINVAL;
3226
84849903 3227 drm_modeset_lock_all(dev);
c543188a
PZ		 3228
3229 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3230 if (!arg_obj)
3231 goto out;
3232 if (!arg_obj->properties)
3233 goto out;
3234
7f88a9be 3235 for (i = 0; i < arg_obj->properties->count; i++)
c543188a
PZ		 3236 if (arg_obj->properties->ids[i] == arg->prop_id)
3237 break;
3238
7f88a9be 3239 if (i == arg_obj->properties->count)
c543188a
PZ		 3240 goto out;
3241
3242 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3243 DRM_MODE_OBJECT_PROPERTY);
3244 if (!prop_obj)
3245 goto out;
3246 property = obj_to_property(prop_obj);
3247
3248 if (!drm_property_change_is_valid(property, arg->value))
3249 goto out;
3250
3251 switch (arg_obj->type) {
3252 case DRM_MODE_OBJECT_CONNECTOR:
3253 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3254 arg->value);
3255 break;
bffd9de0
PZ		 3256 case DRM_MODE_OBJECT_CRTC:
3257 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3258 break;
4d93914a
RC		 3259 case DRM_MODE_OBJECT_PLANE:
3260 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3261 break;
c543188a
PZ		 3262 }
3263
3264out:
84849903 3265 drm_modeset_unlock_all(dev);
c543188a
PZ		 3266 return ret;
3267}
3268
f453ba04
DA		 3269int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3270 struct drm_encoder *encoder)
3271{
3272 int i;
3273
3274 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3275 if (connector->encoder_ids[i] == 0) {
3276 connector->encoder_ids[i] = encoder->base.id;
3277 return 0;
3278 }
3279 }
3280 return -ENOMEM;
3281}
3282EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3283
3284void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3285 struct drm_encoder *encoder)
3286{
3287 int i;
3288 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3289 if (connector->encoder_ids[i] == encoder->base.id) {
3290 connector->encoder_ids[i] = 0;
3291 if (connector->encoder == encoder)
3292 connector->encoder = NULL;
3293 break;
3294 }
3295 }
3296}
3297EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3298
4cae5b84 3299int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3300 int gamma_size)
3301{
3302 crtc->gamma_size = gamma_size;
3303
3304 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3305 if (!crtc->gamma_store) {
3306 crtc->gamma_size = 0;
4cae5b84 3307 return -ENOMEM;
f453ba04
DA		 3308 }
3309
4cae5b84 3310 return 0;
f453ba04
DA		 3311}
3312EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3313
3314int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3315 void *data, struct drm_file *file_priv)
3316{
3317 struct drm_mode_crtc_lut *crtc_lut = data;
3318 struct drm_mode_object *obj;
3319 struct drm_crtc *crtc;
3320 void *r_base, *g_base, *b_base;
3321 int size;
3322 int ret = 0;
3323
fb3b06c8
DA		 3324 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3325 return -EINVAL;
3326
84849903 3327 drm_modeset_lock_all(dev);
f453ba04
DA		 3328 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3329 if (!obj) {
3330 ret = -EINVAL;
3331 goto out;
3332 }
3333 crtc = obj_to_crtc(obj);
3334
ebe0f244
LP		 3335 if (crtc->funcs->gamma_set == NULL) {
3336 ret = -ENOSYS;
3337 goto out;
3338 }
3339
f453ba04
DA		 3340 /* memcpy into gamma store */
3341 if (crtc_lut->gamma_size != crtc->gamma_size) {
3342 ret = -EINVAL;
3343 goto out;
3344 }
3345
3346 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3347 r_base = crtc->gamma_store;
3348 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3349 ret = -EFAULT;
3350 goto out;
3351 }
3352
3353 g_base = r_base + size;
3354 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3355 ret = -EFAULT;
3356 goto out;
3357 }
3358
3359 b_base = g_base + size;
3360 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3361 ret = -EFAULT;
3362 goto out;
3363 }
3364
7203425a 3365 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3366
3367out:
84849903 3368 drm_modeset_unlock_all(dev);
f453ba04
DA		 3369 return ret;
3370
3371}
3372
3373int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3374 void *data, struct drm_file *file_priv)
3375{
3376 struct drm_mode_crtc_lut *crtc_lut = data;
3377 struct drm_mode_object *obj;
3378 struct drm_crtc *crtc;
3379 void *r_base, *g_base, *b_base;
3380 int size;
3381 int ret = 0;
3382
fb3b06c8
DA		 3383 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3384 return -EINVAL;
3385
84849903 3386 drm_modeset_lock_all(dev);
f453ba04
DA		 3387 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3388 if (!obj) {
3389 ret = -EINVAL;
3390 goto out;
3391 }
3392 crtc = obj_to_crtc(obj);
3393
3394 /* memcpy into gamma store */
3395 if (crtc_lut->gamma_size != crtc->gamma_size) {
3396 ret = -EINVAL;
3397 goto out;
3398 }
3399
3400 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3401 r_base = crtc->gamma_store;
3402 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3403 ret = -EFAULT;
3404 goto out;
3405 }
3406
3407 g_base = r_base + size;
3408 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3409 ret = -EFAULT;
3410 goto out;
3411 }
3412
3413 b_base = g_base + size;
3414 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3415 ret = -EFAULT;
3416 goto out;
3417 }
3418out:
84849903 3419 drm_modeset_unlock_all(dev);
f453ba04
DA		 3420 return ret;
3421}
d91d8a3f
KH		 3422
3423int drm_mode_page_flip_ioctl(struct drm_device *dev,
3424 void *data, struct drm_file *file_priv)
3425{
3426 struct drm_mode_crtc_page_flip *page_flip = data;
3427 struct drm_mode_object *obj;
3428 struct drm_crtc *crtc;
b0d12325 3429 struct drm_framebuffer *fb = NULL, *old_fb = NULL;
d91d8a3f
KH		 3430 struct drm_pending_vblank_event *e = NULL;
3431 unsigned long flags;
7c80e128 3432 int hdisplay, vdisplay;
d91d8a3f
KH		 3433 int ret = -EINVAL;
3434
3435 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3436 page_flip->reserved != 0)
3437 return -EINVAL;
3438
d91d8a3f
KH		 3439 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3440 if (!obj)
b4d5e7d1 3441 return -EINVAL;
d91d8a3f
KH		 3442 crtc = obj_to_crtc(obj);
3443
b4d5e7d1 3444 mutex_lock(&crtc->mutex);
90c1efdd
CW		 3445 if (crtc->fb == NULL) {
3446 /* The framebuffer is currently unbound, presumably
3447 * due to a hotplug event, that userspace has not
3448 * yet discovered.
3449 */
3450 ret = -EBUSY;
3451 goto out;
3452 }
3453
d91d8a3f
KH		 3454 if (crtc->funcs->page_flip == NULL)
3455 goto out;
3456
786b99ed
DV		 3457 fb = drm_framebuffer_lookup(dev, page_flip->fb_id);
3458 if (!fb)
d91d8a3f 3459 goto out;
d91d8a3f 3460
7c80e128
RC		 3461 hdisplay = crtc->mode.hdisplay;
3462 vdisplay = crtc->mode.vdisplay;
3463
3464 if (crtc->invert_dimensions)
3465 swap(hdisplay, vdisplay);
3466
3467 if (hdisplay > fb->width ||
3468 vdisplay > fb->height ||
3469 crtc->x > fb->width - hdisplay ||
3470 crtc->y > fb->height - vdisplay) {
3471 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
3472 fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
3473 crtc->invert_dimensions ? " (inverted)" : "");
5f61bb42
VS		 3474 ret = -ENOSPC;
3475 goto out;
3476 }
3477
909d9cda
LP		 3478 if (crtc->fb->pixel_format != fb->pixel_format) {
3479 DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n");
3480 ret = -EINVAL;
3481 goto out;
3482 }
3483
d91d8a3f
KH		 3484 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3485 ret = -ENOMEM;
3486 spin_lock_irqsave(&dev->event_lock, flags);
3487 if (file_priv->event_space < sizeof e->event) {
3488 spin_unlock_irqrestore(&dev->event_lock, flags);
3489 goto out;
3490 }
3491 file_priv->event_space -= sizeof e->event;
3492 spin_unlock_irqrestore(&dev->event_lock, flags);
3493
3494 e = kzalloc(sizeof *e, GFP_KERNEL);
3495 if (e == NULL) {
3496 spin_lock_irqsave(&dev->event_lock, flags);
3497 file_priv->event_space += sizeof e->event;
3498 spin_unlock_irqrestore(&dev->event_lock, flags);
3499 goto out;
3500 }
3501
7bd4d7be 3502 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3503 e->event.base.length = sizeof e->event;
3504 e->event.user_data = page_flip->user_data;
3505 e->base.event = &e->event.base;
3506 e->base.file_priv = file_priv;
3507 e->base.destroy =
3508 (void (*) (struct drm_pending_event *)) kfree;
3509 }
3510
b0d12325 3511 old_fb = crtc->fb;
d91d8a3f
KH		 3512 ret = crtc->funcs->page_flip(crtc, fb, e);
3513 if (ret) {
aef6a7ee
JS		 3514 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3515 spin_lock_irqsave(&dev->event_lock, flags);
3516 file_priv->event_space += sizeof e->event;
3517 spin_unlock_irqrestore(&dev->event_lock, flags);
3518 kfree(e);
3519 }
b0d12325
DV		 3520 /* Keep the old fb, don't unref it. */
3521 old_fb = NULL;
3522 } else {
8cf1e981
TR		 3523 /*
3524 * Warn if the driver hasn't properly updated the crtc->fb
3525 * field to reflect that the new framebuffer is now used.
3526 * Failing to do so will screw with the reference counting
3527 * on framebuffers.
3528 */
3529 WARN_ON(crtc->fb != fb);
b0d12325
DV		 3530 /* Unref only the old framebuffer. */
3531 fb = NULL;
d91d8a3f
KH		 3532 }
3533
3534out:
b0d12325
DV		 3535 if (fb)
3536 drm_framebuffer_unreference(fb);
3537 if (old_fb)
3538 drm_framebuffer_unreference(old_fb);
b4d5e7d1
DV		 3539 mutex_unlock(&crtc->mutex);
3540
d91d8a3f
KH		 3541 return ret;
3542}
eb033556
CW		 3543
3544void drm_mode_config_reset(struct drm_device *dev)
3545{
3546 struct drm_crtc *crtc;
3547 struct drm_encoder *encoder;
3548 struct drm_connector *connector;
3549
3550 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3551 if (crtc->funcs->reset)
3552 crtc->funcs->reset(crtc);
3553
3554 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3555 if (encoder->funcs->reset)
3556 encoder->funcs->reset(encoder);
3557
5e2cb2f6
DV		 3558 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
3559 connector->status = connector_status_unknown;
3560
eb033556
CW		 3561 if (connector->funcs->reset)
3562 connector->funcs->reset(connector);
5e2cb2f6 3563 }
eb033556
CW		 3564}
3565EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3566
3567int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3568 void *data, struct drm_file *file_priv)
3569{
3570 struct drm_mode_create_dumb *args = data;
3571
3572 if (!dev->driver->dumb_create)
3573 return -ENOSYS;
3574 return dev->driver->dumb_create(file_priv, dev, args);
3575}
3576
3577int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3578 void *data, struct drm_file *file_priv)
3579{
3580 struct drm_mode_map_dumb *args = data;
3581
3582 /* call driver ioctl to get mmap offset */
3583 if (!dev->driver->dumb_map_offset)
3584 return -ENOSYS;
3585
3586 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3587}
3588
3589int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3590 void *data, struct drm_file *file_priv)
3591{
3592 struct drm_mode_destroy_dumb *args = data;
3593
3594 if (!dev->driver->dumb_destroy)
3595 return -ENOSYS;
3596
3597 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3598}
248dbc23
DA		 3599
3600/*
3601 * Just need to support RGB formats here for compat with code that doesn't
3602 * use pixel formats directly yet.
3603 */
3604void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3605 int *bpp)
3606{
3607 switch (format) {
c51a6bc5 3608 case DRM_FORMAT_C8:
04b3924d
VS		 3609 case DRM_FORMAT_RGB332:
3610 case DRM_FORMAT_BGR233:
248dbc23
DA		 3611 *depth = 8;
3612 *bpp = 8;
3613 break;
04b3924d
VS		 3614 case DRM_FORMAT_XRGB1555:
3615 case DRM_FORMAT_XBGR1555:
3616 case DRM_FORMAT_RGBX5551:
3617 case DRM_FORMAT_BGRX5551:
3618 case DRM_FORMAT_ARGB1555:
3619 case DRM_FORMAT_ABGR1555:
3620 case DRM_FORMAT_RGBA5551:
3621 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3622 *depth = 15;
3623 *bpp = 16;
3624 break;
04b3924d
VS		 3625 case DRM_FORMAT_RGB565:
3626 case DRM_FORMAT_BGR565:
248dbc23
DA		 3627 *depth = 16;
3628 *bpp = 16;
3629 break;
04b3924d
VS		 3630 case DRM_FORMAT_RGB888:
3631 case DRM_FORMAT_BGR888:
3632 *depth = 24;
3633 *bpp = 24;
3634 break;
3635 case DRM_FORMAT_XRGB8888:
3636 case DRM_FORMAT_XBGR8888:
3637 case DRM_FORMAT_RGBX8888:
3638 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3639 *depth = 24;
3640 *bpp = 32;
3641 break;
04b3924d
VS		 3642 case DRM_FORMAT_XRGB2101010:
3643 case DRM_FORMAT_XBGR2101010:
3644 case DRM_FORMAT_RGBX1010102:
3645 case DRM_FORMAT_BGRX1010102:
3646 case DRM_FORMAT_ARGB2101010:
3647 case DRM_FORMAT_ABGR2101010:
3648 case DRM_FORMAT_RGBA1010102:
3649 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3650 *depth = 30;
3651 *bpp = 32;
3652 break;
04b3924d
VS		 3653 case DRM_FORMAT_ARGB8888:
3654 case DRM_FORMAT_ABGR8888:
3655 case DRM_FORMAT_RGBA8888:
3656 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3657 *depth = 32;
3658 *bpp = 32;
3659 break;
3660 default:
3661 DRM_DEBUG_KMS("unsupported pixel format\n");
3662 *depth = 0;
3663 *bpp = 0;
3664 break;
3665 }
3666}
3667EXPORT_SYMBOL(drm_fb_get_bpp_depth);
141670e9
VS		 3668
3669/**
3670 * drm_format_num_planes - get the number of planes for format
3671 * @format: pixel format (DRM_FORMAT_*)
3672 *
3673 * RETURNS:
3674 * The number of planes used by the specified pixel format.
3675 */
3676int drm_format_num_planes(uint32_t format)
3677{
3678 switch (format) {
3679 case DRM_FORMAT_YUV410:
3680 case DRM_FORMAT_YVU410:
3681 case DRM_FORMAT_YUV411:
3682 case DRM_FORMAT_YVU411:
3683 case DRM_FORMAT_YUV420:
3684 case DRM_FORMAT_YVU420:
3685 case DRM_FORMAT_YUV422:
3686 case DRM_FORMAT_YVU422:
3687 case DRM_FORMAT_YUV444:
3688 case DRM_FORMAT_YVU444:
3689 return 3;
3690 case DRM_FORMAT_NV12:
3691 case DRM_FORMAT_NV21:
3692 case DRM_FORMAT_NV16:
3693 case DRM_FORMAT_NV61:
ba623f6a
LP		 3694 case DRM_FORMAT_NV24:
3695 case DRM_FORMAT_NV42:
141670e9
VS		 3696 return 2;
3697 default:
3698 return 1;
3699 }
3700}
3701EXPORT_SYMBOL(drm_format_num_planes);
5a86bd55
VS		 3702
3703/**
3704 * drm_format_plane_cpp - determine the bytes per pixel value
3705 * @format: pixel format (DRM_FORMAT_*)
3706 * @plane: plane index
3707 *
3708 * RETURNS:
3709 * The bytes per pixel value for the specified plane.
3710 */
3711int drm_format_plane_cpp(uint32_t format, int plane)
3712{
3713 unsigned int depth;
3714 int bpp;
3715
3716 if (plane >= drm_format_num_planes(format))
3717 return 0;
3718
3719 switch (format) {
3720 case DRM_FORMAT_YUYV:
3721 case DRM_FORMAT_YVYU:
3722 case DRM_FORMAT_UYVY:
3723 case DRM_FORMAT_VYUY:
3724 return 2;
3725 case DRM_FORMAT_NV12:
3726 case DRM_FORMAT_NV21:
3727 case DRM_FORMAT_NV16:
3728 case DRM_FORMAT_NV61:
ba623f6a
LP		 3729 case DRM_FORMAT_NV24:
3730 case DRM_FORMAT_NV42:
5a86bd55
VS		 3731 return plane ? 2 : 1;
3732 case DRM_FORMAT_YUV410:
3733 case DRM_FORMAT_YVU410:
3734 case DRM_FORMAT_YUV411:
3735 case DRM_FORMAT_YVU411:
3736 case DRM_FORMAT_YUV420:
3737 case DRM_FORMAT_YVU420:
3738 case DRM_FORMAT_YUV422:
3739 case DRM_FORMAT_YVU422:
3740 case DRM_FORMAT_YUV444:
3741 case DRM_FORMAT_YVU444:
3742 return 1;
3743 default:
3744 drm_fb_get_bpp_depth(format, &depth, &bpp);
3745 return bpp >> 3;
3746 }
3747}
3748EXPORT_SYMBOL(drm_format_plane_cpp);
01b68b04
VS		 3749
3750/**
3751 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3752 * @format: pixel format (DRM_FORMAT_*)
3753 *
3754 * RETURNS:
3755 * The horizontal chroma subsampling factor for the
3756 * specified pixel format.
3757 */
3758int drm_format_horz_chroma_subsampling(uint32_t format)
3759{
3760 switch (format) {
3761 case DRM_FORMAT_YUV411:
3762 case DRM_FORMAT_YVU411:
3763 case DRM_FORMAT_YUV410:
3764 case DRM_FORMAT_YVU410:
3765 return 4;
3766 case DRM_FORMAT_YUYV:
3767 case DRM_FORMAT_YVYU:
3768 case DRM_FORMAT_UYVY:
3769 case DRM_FORMAT_VYUY:
3770 case DRM_FORMAT_NV12:
3771 case DRM_FORMAT_NV21:
3772 case DRM_FORMAT_NV16:
3773 case DRM_FORMAT_NV61:
3774 case DRM_FORMAT_YUV422:
3775 case DRM_FORMAT_YVU422:
3776 case DRM_FORMAT_YUV420:
3777 case DRM_FORMAT_YVU420:
3778 return 2;
3779 default:
3780 return 1;
3781 }
3782}
3783EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3784
3785/**
3786 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3787 * @format: pixel format (DRM_FORMAT_*)
3788 *
3789 * RETURNS:
3790 * The vertical chroma subsampling factor for the
3791 * specified pixel format.
3792 */
3793int drm_format_vert_chroma_subsampling(uint32_t format)
3794{
3795 switch (format) {
3796 case DRM_FORMAT_YUV410:
3797 case DRM_FORMAT_YVU410:
3798 return 4;
3799 case DRM_FORMAT_YUV420:
3800 case DRM_FORMAT_YVU420:
3801 case DRM_FORMAT_NV12:
3802 case DRM_FORMAT_NV21:
3803 return 2;
3804 default:
3805 return 1;
3806 }
3807}
3808EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
87d24fc3
LP		 3809
3810/**
3811 * drm_mode_config_init - initialize DRM mode_configuration structure
3812 * @dev: DRM device
3813 *
3814 * Initialize @dev's mode_config structure, used for tracking the graphics
3815 * configuration of @dev.
3816 *
3817 * Since this initializes the modeset locks, no locking is possible. Which is no
3818 * problem, since this should happen single threaded at init time. It is the
3819 * driver's problem to ensure this guarantee.
3820 *
3821 */
3822void drm_mode_config_init(struct drm_device *dev)
3823{
3824 mutex_init(&dev->mode_config.mutex);
3825 mutex_init(&dev->mode_config.idr_mutex);
3826 mutex_init(&dev->mode_config.fb_lock);
3827 INIT_LIST_HEAD(&dev->mode_config.fb_list);
3828 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
3829 INIT_LIST_HEAD(&dev->mode_config.connector_list);
3830 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
3831 INIT_LIST_HEAD(&dev->mode_config.property_list);
3832 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
3833 INIT_LIST_HEAD(&dev->mode_config.plane_list);
3834 idr_init(&dev->mode_config.crtc_idr);
3835
3836 drm_modeset_lock_all(dev);
3837 drm_mode_create_standard_connector_properties(dev);
3838 drm_modeset_unlock_all(dev);
3839
3840 /* Just to be sure */
3841 dev->mode_config.num_fb = 0;
3842 dev->mode_config.num_connector = 0;
3843 dev->mode_config.num_crtc = 0;
3844 dev->mode_config.num_encoder = 0;
3845}
3846EXPORT_SYMBOL(drm_mode_config_init);
3847
3848/**
3849 * drm_mode_config_cleanup - free up DRM mode_config info
3850 * @dev: DRM device
3851 *
3852 * Free up all the connectors and CRTCs associated with this DRM device, then
3853 * free up the framebuffers and associated buffer objects.
3854 *
3855 * Note that since this /should/ happen single-threaded at driver/device
3856 * teardown time, no locking is required. It's the driver's job to ensure that
3857 * this guarantee actually holds true.
3858 *
3859 * FIXME: cleanup any dangling user buffer objects too
3860 */
3861void drm_mode_config_cleanup(struct drm_device *dev)
3862{
3863 struct drm_connector *connector, *ot;
3864 struct drm_crtc *crtc, *ct;
3865 struct drm_encoder *encoder, *enct;
3866 struct drm_framebuffer *fb, *fbt;
3867 struct drm_property *property, *pt;
3868 struct drm_property_blob *blob, *bt;
3869 struct drm_plane *plane, *plt;
3870
3871 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
3872 head) {
3873 encoder->funcs->destroy(encoder);
3874 }
3875
3876 list_for_each_entry_safe(connector, ot,
3877 &dev->mode_config.connector_list, head) {
3878 connector->funcs->destroy(connector);
3879 }
3880
3881 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
3882 head) {
3883 drm_property_destroy(dev, property);
3884 }
3885
3886 list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list,
3887 head) {
3888 drm_property_destroy_blob(dev, blob);
3889 }
3890
3891 /*
3892 * Single-threaded teardown context, so it's not required to grab the
3893 * fb_lock to protect against concurrent fb_list access. Contrary, it
3894 * would actually deadlock with the drm_framebuffer_cleanup function.
3895 *
3896 * Also, if there are any framebuffers left, that's a driver leak now,
3897 * so politely WARN about this.
3898 */
3899 WARN_ON(!list_empty(&dev->mode_config.fb_list));
3900 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
3901 drm_framebuffer_remove(fb);
3902 }
3903
3904 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
3905 head) {
3906 plane->funcs->destroy(plane);
3907 }
3908
3909 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
3910 crtc->funcs->destroy(crtc);
3911 }
3912
3913 idr_destroy(&dev->mode_config.crtc_idr);
3914}
3915EXPORT_SYMBOL(drm_mode_config_cleanup);
Linux kernel - Deliverables
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