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drm: add convenience function to create an enum property
[linux-block.git] / drivers / gpu / drm / drm_crtc.c
CommitLineData
f453ba04
DA		 1/*
2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
5 *
6 * DRM core CRTC related functions
7 *
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
17 *
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 *
26 * Authors:
27 * Keith Packard
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
31 */
32#include <linux/list.h>
5a0e3ad6 33#include <linux/slab.h>
2d1a8a48 34#include <linux/export.h>
f453ba04
DA		 35#include "drm.h"
36#include "drmP.h"
37#include "drm_crtc.h"
7466f4cc 38#include "drm_edid.h"
308e5bcb 39#include "drm_fourcc.h"
f453ba04 40
f453ba04
DA		 41/* Avoid boilerplate. I'm tired of typing. */
42#define DRM_ENUM_NAME_FN(fnname, list) \
43 char *fnname(int val) \
44 { \
45 int i; \
46 for (i = 0; i < ARRAY_SIZE(list); i++) { \
47 if (list[i].type == val) \
48 return list[i].name; \
49 } \
50 return "(unknown)"; \
51 }
52
53/*
54 * Global properties
55 */
56static struct drm_prop_enum_list drm_dpms_enum_list[] =
57{ { DRM_MODE_DPMS_ON, "On" },
58 { DRM_MODE_DPMS_STANDBY, "Standby" },
59 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
60 { DRM_MODE_DPMS_OFF, "Off" }
61};
62
63DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
64
65/*
66 * Optional properties
67 */
68static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
69{
53bd8389
JB		 70 { DRM_MODE_SCALE_NONE, "None" },
71 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
72 { DRM_MODE_SCALE_CENTER, "Center" },
73 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
f453ba04
DA		 74};
75
76static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
77{
78 { DRM_MODE_DITHERING_OFF, "Off" },
79 { DRM_MODE_DITHERING_ON, "On" },
92897b5c 80 { DRM_MODE_DITHERING_AUTO, "Automatic" },
f453ba04
DA		 81};
82
83/*
84 * Non-global properties, but "required" for certain connectors.
85 */
86static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
87{
88 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
89 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
90 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
91};
92
93DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
94
95static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
96{
97 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
98 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
99 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
100};
101
102DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
103 drm_dvi_i_subconnector_enum_list)
104
105static struct drm_prop_enum_list drm_tv_select_enum_list[] =
106{
107 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
108 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
109 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
110 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 111 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 112};
113
114DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
115
116static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
117{
118 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
119 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
121 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 122 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 123};
124
125DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
126 drm_tv_subconnector_enum_list)
127
884840aa
JB		 128static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
129 { DRM_MODE_DIRTY_OFF, "Off" },
130 { DRM_MODE_DIRTY_ON, "On" },
131 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
132};
133
134DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
135 drm_dirty_info_enum_list)
136
f453ba04
DA		 137struct drm_conn_prop_enum_list {
138 int type;
139 char *name;
140 int count;
141};
142
143/*
144 * Connector and encoder types.
145 */
146static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
147{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
148 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
149 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
150 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
151 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
152 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
153 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
154 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
155 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
e76116ca
AD		 156 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
157 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
158 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
159 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
74bd3c26 160 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
e76116ca 161 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
a7331e5c 162 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
f453ba04
DA		 163};
164
165static struct drm_prop_enum_list drm_encoder_enum_list[] =
166{ { DRM_MODE_ENCODER_NONE, "None" },
167 { DRM_MODE_ENCODER_DAC, "DAC" },
168 { DRM_MODE_ENCODER_TMDS, "TMDS" },
169 { DRM_MODE_ENCODER_LVDS, "LVDS" },
170 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 171 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
f453ba04
DA		 172};
173
174char *drm_get_encoder_name(struct drm_encoder *encoder)
175{
176 static char buf[32];
177
178 snprintf(buf, 32, "%s-%d",
179 drm_encoder_enum_list[encoder->encoder_type].name,
180 encoder->base.id);
181 return buf;
182}
13a8195b 183EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04
DA		 184
185char *drm_get_connector_name(struct drm_connector *connector)
186{
187 static char buf[32];
188
189 snprintf(buf, 32, "%s-%d",
190 drm_connector_enum_list[connector->connector_type].name,
191 connector->connector_type_id);
192 return buf;
193}
194EXPORT_SYMBOL(drm_get_connector_name);
195
196char *drm_get_connector_status_name(enum drm_connector_status status)
197{
198 if (status == connector_status_connected)
199 return "connected";
200 else if (status == connector_status_disconnected)
201 return "disconnected";
202 else
203 return "unknown";
204}
205
206/**
207 * drm_mode_object_get - allocate a new identifier
208 * @dev: DRM device
209 * @ptr: object pointer, used to generate unique ID
210 * @type: object type
211 *
212 * LOCKING:
f453ba04
DA		 213 *
214 * Create a unique identifier based on @ptr in @dev's identifier space. Used
215 * for tracking modes, CRTCs and connectors.
216 *
217 * RETURNS:
218 * New unique (relative to other objects in @dev) integer identifier for the
219 * object.
220 */
221static int drm_mode_object_get(struct drm_device *dev,
222 struct drm_mode_object *obj, uint32_t obj_type)
223{
224 int new_id = 0;
225 int ret;
226
f453ba04
DA		 227again:
228 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
229 DRM_ERROR("Ran out memory getting a mode number\n");
230 return -EINVAL;
231 }
232
ad2563c2 233 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 234 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
ad2563c2 235 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 236 if (ret == -EAGAIN)
237 goto again;
238
239 obj->id = new_id;
240 obj->type = obj_type;
241 return 0;
242}
243
244/**
245 * drm_mode_object_put - free an identifer
246 * @dev: DRM device
247 * @id: ID to free
248 *
249 * LOCKING:
250 * Caller must hold DRM mode_config lock.
251 *
252 * Free @id from @dev's unique identifier pool.
253 */
254static void drm_mode_object_put(struct drm_device *dev,
255 struct drm_mode_object *object)
256{
ad2563c2 257 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 258 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 259 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 260}
261
7a9c9060
DV		 262struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
263 uint32_t id, uint32_t type)
f453ba04 264{
ad2563c2 265 struct drm_mode_object *obj = NULL;
f453ba04 266
ad2563c2 267 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 268 obj = idr_find(&dev->mode_config.crtc_idr, id);
269 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 270 obj = NULL;
271 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 272
273 return obj;
274}
275EXPORT_SYMBOL(drm_mode_object_find);
276
f453ba04
DA		 277/**
278 * drm_framebuffer_init - initialize a framebuffer
279 * @dev: DRM device
280 *
281 * LOCKING:
282 * Caller must hold mode config lock.
283 *
284 * Allocates an ID for the framebuffer's parent mode object, sets its mode
285 * functions & device file and adds it to the master fd list.
286 *
287 * RETURNS:
af901ca1 288 * Zero on success, error code on failure.
f453ba04
DA		 289 */
290int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
291 const struct drm_framebuffer_funcs *funcs)
292{
293 int ret;
294
295 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
296 if (ret) {
297 return ret;
298 }
299
300 fb->dev = dev;
301 fb->funcs = funcs;
302 dev->mode_config.num_fb++;
303 list_add(&fb->head, &dev->mode_config.fb_list);
304
305 return 0;
306}
307EXPORT_SYMBOL(drm_framebuffer_init);
308
309/**
310 * drm_framebuffer_cleanup - remove a framebuffer object
311 * @fb: framebuffer to remove
312 *
313 * LOCKING:
314 * Caller must hold mode config lock.
315 *
316 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
317 * it, setting it to NULL.
318 */
319void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
320{
321 struct drm_device *dev = fb->dev;
322 struct drm_crtc *crtc;
8cf5c917 323 struct drm_plane *plane;
5ef5f72f
DA		 324 struct drm_mode_set set;
325 int ret;
f453ba04
DA		 326
327 /* remove from any CRTC */
328 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
5ef5f72f
DA		 329 if (crtc->fb == fb) {
330 /* should turn off the crtc */
331 memset(&set, 0, sizeof(struct drm_mode_set));
332 set.crtc = crtc;
333 set.fb = NULL;
334 ret = crtc->funcs->set_config(&set);
335 if (ret)
336 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
337 }
f453ba04
DA		 338 }
339
8cf5c917
JB		 340 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
341 if (plane->fb == fb) {
342 /* should turn off the crtc */
343 ret = plane->funcs->disable_plane(plane);
344 if (ret)
345 DRM_ERROR("failed to disable plane with busy fb\n");
a9971157
RC		 346 /* disconnect the plane from the fb and crtc: */
347 plane->fb = NULL;
348 plane->crtc = NULL;
8cf5c917
JB		 349 }
350 }
351
f453ba04
DA		 352 drm_mode_object_put(dev, &fb->base);
353 list_del(&fb->head);
354 dev->mode_config.num_fb--;
355}
356EXPORT_SYMBOL(drm_framebuffer_cleanup);
357
358/**
359 * drm_crtc_init - Initialise a new CRTC object
360 * @dev: DRM device
361 * @crtc: CRTC object to init
362 * @funcs: callbacks for the new CRTC
363 *
364 * LOCKING:
365 * Caller must hold mode config lock.
366 *
367 * Inits a new object created as base part of an driver crtc object.
368 */
369void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
370 const struct drm_crtc_funcs *funcs)
371{
372 crtc->dev = dev;
373 crtc->funcs = funcs;
374
375 mutex_lock(&dev->mode_config.mutex);
376 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
377
378 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
379 dev->mode_config.num_crtc++;
380 mutex_unlock(&dev->mode_config.mutex);
381}
382EXPORT_SYMBOL(drm_crtc_init);
383
384/**
385 * drm_crtc_cleanup - Cleans up the core crtc usage.
386 * @crtc: CRTC to cleanup
387 *
388 * LOCKING:
389 * Caller must hold mode config lock.
390 *
391 * Cleanup @crtc. Removes from drm modesetting space
392 * does NOT free object, caller does that.
393 */
394void drm_crtc_cleanup(struct drm_crtc *crtc)
395{
396 struct drm_device *dev = crtc->dev;
397
398 if (crtc->gamma_store) {
399 kfree(crtc->gamma_store);
400 crtc->gamma_store = NULL;
401 }
402
403 drm_mode_object_put(dev, &crtc->base);
404 list_del(&crtc->head);
405 dev->mode_config.num_crtc--;
406}
407EXPORT_SYMBOL(drm_crtc_cleanup);
408
409/**
410 * drm_mode_probed_add - add a mode to a connector's probed mode list
411 * @connector: connector the new mode
412 * @mode: mode data
413 *
414 * LOCKING:
415 * Caller must hold mode config lock.
416 *
417 * Add @mode to @connector's mode list for later use.
418 */
419void drm_mode_probed_add(struct drm_connector *connector,
420 struct drm_display_mode *mode)
421{
422 list_add(&mode->head, &connector->probed_modes);
423}
424EXPORT_SYMBOL(drm_mode_probed_add);
425
426/**
427 * drm_mode_remove - remove and free a mode
428 * @connector: connector list to modify
429 * @mode: mode to remove
430 *
431 * LOCKING:
432 * Caller must hold mode config lock.
433 *
434 * Remove @mode from @connector's mode list, then free it.
435 */
436void drm_mode_remove(struct drm_connector *connector,
437 struct drm_display_mode *mode)
438{
439 list_del(&mode->head);
554f1d78 440 drm_mode_destroy(connector->dev, mode);
f453ba04
DA		 441}
442EXPORT_SYMBOL(drm_mode_remove);
443
444/**
445 * drm_connector_init - Init a preallocated connector
446 * @dev: DRM device
447 * @connector: the connector to init
448 * @funcs: callbacks for this connector
449 * @name: user visible name of the connector
450 *
451 * LOCKING:
b20f3867 452 * Takes mode config lock.
f453ba04
DA		 453 *
454 * Initialises a preallocated connector. Connectors should be
455 * subclassed as part of driver connector objects.
456 */
457void drm_connector_init(struct drm_device *dev,
458 struct drm_connector *connector,
459 const struct drm_connector_funcs *funcs,
460 int connector_type)
461{
462 mutex_lock(&dev->mode_config.mutex);
463
464 connector->dev = dev;
465 connector->funcs = funcs;
466 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
467 connector->connector_type = connector_type;
468 connector->connector_type_id =
469 ++drm_connector_enum_list[connector_type].count; /* TODO */
470 INIT_LIST_HEAD(&connector->user_modes);
471 INIT_LIST_HEAD(&connector->probed_modes);
472 INIT_LIST_HEAD(&connector->modes);
473 connector->edid_blob_ptr = NULL;
474
475 list_add_tail(&connector->head, &dev->mode_config.connector_list);
476 dev->mode_config.num_connector++;
477
a7331e5c
TH		 478 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
479 drm_connector_attach_property(connector,
480 dev->mode_config.edid_property,
481 0);
f453ba04
DA		 482
483 drm_connector_attach_property(connector,
484 dev->mode_config.dpms_property, 0);
485
486 mutex_unlock(&dev->mode_config.mutex);
487}
488EXPORT_SYMBOL(drm_connector_init);
489
490/**
491 * drm_connector_cleanup - cleans up an initialised connector
492 * @connector: connector to cleanup
493 *
494 * LOCKING:
b20f3867 495 * Takes mode config lock.
f453ba04
DA		 496 *
497 * Cleans up the connector but doesn't free the object.
498 */
499void drm_connector_cleanup(struct drm_connector *connector)
500{
501 struct drm_device *dev = connector->dev;
502 struct drm_display_mode *mode, *t;
503
504 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
505 drm_mode_remove(connector, mode);
506
507 list_for_each_entry_safe(mode, t, &connector->modes, head)
508 drm_mode_remove(connector, mode);
509
510 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
511 drm_mode_remove(connector, mode);
512
513 mutex_lock(&dev->mode_config.mutex);
514 drm_mode_object_put(dev, &connector->base);
515 list_del(&connector->head);
6380c509 516 dev->mode_config.num_connector--;
f453ba04
DA		 517 mutex_unlock(&dev->mode_config.mutex);
518}
519EXPORT_SYMBOL(drm_connector_cleanup);
520
521void drm_encoder_init(struct drm_device *dev,
522 struct drm_encoder *encoder,
523 const struct drm_encoder_funcs *funcs,
524 int encoder_type)
525{
526 mutex_lock(&dev->mode_config.mutex);
527
528 encoder->dev = dev;
529
530 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
531 encoder->encoder_type = encoder_type;
532 encoder->funcs = funcs;
533
534 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
535 dev->mode_config.num_encoder++;
536
537 mutex_unlock(&dev->mode_config.mutex);
538}
539EXPORT_SYMBOL(drm_encoder_init);
540
541void drm_encoder_cleanup(struct drm_encoder *encoder)
542{
543 struct drm_device *dev = encoder->dev;
544 mutex_lock(&dev->mode_config.mutex);
545 drm_mode_object_put(dev, &encoder->base);
546 list_del(&encoder->head);
6380c509 547 dev->mode_config.num_encoder--;
f453ba04
DA		 548 mutex_unlock(&dev->mode_config.mutex);
549}
550EXPORT_SYMBOL(drm_encoder_cleanup);
551
8cf5c917
JB		 552int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
553 unsigned long possible_crtcs,
554 const struct drm_plane_funcs *funcs,
0a7eb243
RC		 555 const uint32_t *formats, uint32_t format_count,
556 bool priv)
8cf5c917
JB		 557{
558 mutex_lock(&dev->mode_config.mutex);
559
560 plane->dev = dev;
561 drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
562 plane->funcs = funcs;
563 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
564 GFP_KERNEL);
565 if (!plane->format_types) {
566 DRM_DEBUG_KMS("out of memory when allocating plane\n");
567 drm_mode_object_put(dev, &plane->base);
10bf573b 568 mutex_unlock(&dev->mode_config.mutex);
8cf5c917
JB		 569 return -ENOMEM;
570 }
571
308e5bcb 572 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 573 plane->format_count = format_count;
574 plane->possible_crtcs = possible_crtcs;
575
0a7eb243
RC		 576 /* private planes are not exposed to userspace, but depending on
577 * display hardware, might be convenient to allow sharing programming
578 * for the scanout engine with the crtc implementation.
579 */
580 if (!priv) {
581 list_add_tail(&plane->head, &dev->mode_config.plane_list);
582 dev->mode_config.num_plane++;
583 } else {
584 INIT_LIST_HEAD(&plane->head);
585 }
8cf5c917
JB		 586
587 mutex_unlock(&dev->mode_config.mutex);
588
589 return 0;
590}
591EXPORT_SYMBOL(drm_plane_init);
592
593void drm_plane_cleanup(struct drm_plane *plane)
594{
595 struct drm_device *dev = plane->dev;
596
597 mutex_lock(&dev->mode_config.mutex);
598 kfree(plane->format_types);
599 drm_mode_object_put(dev, &plane->base);
0a7eb243
RC		 600 /* if not added to a list, it must be a private plane */
601 if (!list_empty(&plane->head)) {
602 list_del(&plane->head);
603 dev->mode_config.num_plane--;
604 }
8cf5c917
JB		 605 mutex_unlock(&dev->mode_config.mutex);
606}
607EXPORT_SYMBOL(drm_plane_cleanup);
608
f453ba04
DA		 609/**
610 * drm_mode_create - create a new display mode
611 * @dev: DRM device
612 *
613 * LOCKING:
614 * Caller must hold DRM mode_config lock.
615 *
616 * Create a new drm_display_mode, give it an ID, and return it.
617 *
618 * RETURNS:
619 * Pointer to new mode on success, NULL on error.
620 */
621struct drm_display_mode *drm_mode_create(struct drm_device *dev)
622{
623 struct drm_display_mode *nmode;
624
625 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
626 if (!nmode)
627 return NULL;
628
629 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
630 return nmode;
631}
632EXPORT_SYMBOL(drm_mode_create);
633
634/**
635 * drm_mode_destroy - remove a mode
636 * @dev: DRM device
637 * @mode: mode to remove
638 *
639 * LOCKING:
640 * Caller must hold mode config lock.
641 *
642 * Free @mode's unique identifier, then free it.
643 */
644void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
645{
646 drm_mode_object_put(dev, &mode->base);
647
648 kfree(mode);
649}
650EXPORT_SYMBOL(drm_mode_destroy);
651
652static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
653{
654 struct drm_property *edid;
655 struct drm_property *dpms;
f453ba04
DA		 656
657 /*
658 * Standard properties (apply to all connectors)
659 */
660 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
661 DRM_MODE_PROP_IMMUTABLE,
662 "EDID", 0);
663 dev->mode_config.edid_property = edid;
664
4a67d391
SH		 665 dpms = drm_property_create_enum(dev, 0,
666 "DPMS", drm_dpms_enum_list,
667 ARRAY_SIZE(drm_dpms_enum_list));
f453ba04
DA		 668 dev->mode_config.dpms_property = dpms;
669
670 return 0;
671}
672
673/**
674 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
675 * @dev: DRM device
676 *
677 * Called by a driver the first time a DVI-I connector is made.
678 */
679int drm_mode_create_dvi_i_properties(struct drm_device *dev)
680{
681 struct drm_property *dvi_i_selector;
682 struct drm_property *dvi_i_subconnector;
f453ba04
DA		 683
684 if (dev->mode_config.dvi_i_select_subconnector_property)
685 return 0;
686
687 dvi_i_selector =
4a67d391 688 drm_property_create_enum(dev, 0,
f453ba04 689 "select subconnector",
4a67d391 690 drm_dvi_i_select_enum_list,
f453ba04 691 ARRAY_SIZE(drm_dvi_i_select_enum_list));
f453ba04
DA		 692 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
693
4a67d391 694 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
f453ba04 695 "subconnector",
4a67d391 696 drm_dvi_i_subconnector_enum_list,
f453ba04 697 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
f453ba04
DA		 698 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
699
700 return 0;
701}
702EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
703
704/**
705 * drm_create_tv_properties - create TV specific connector properties
706 * @dev: DRM device
707 * @num_modes: number of different TV formats (modes) supported
708 * @modes: array of pointers to strings containing name of each format
709 *
710 * Called by a driver's TV initialization routine, this function creates
711 * the TV specific connector properties for a given device. Caller is
712 * responsible for allocating a list of format names and passing them to
713 * this routine.
714 */
715int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
716 char *modes[])
717{
718 struct drm_property *tv_selector;
719 struct drm_property *tv_subconnector;
720 int i;
721
722 if (dev->mode_config.tv_select_subconnector_property)
723 return 0;
724
725 /*
726 * Basic connector properties
727 */
4a67d391 728 tv_selector = drm_property_create_enum(dev, 0,
f453ba04 729 "select subconnector",
4a67d391 730 drm_tv_select_enum_list,
f453ba04 731 ARRAY_SIZE(drm_tv_select_enum_list));
f453ba04
DA		 732 dev->mode_config.tv_select_subconnector_property = tv_selector;
733
734 tv_subconnector =
4a67d391
SH		 735 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
736 "subconnector",
737 drm_tv_subconnector_enum_list,
f453ba04 738 ARRAY_SIZE(drm_tv_subconnector_enum_list));
f453ba04
DA		 739 dev->mode_config.tv_subconnector_property = tv_subconnector;
740
741 /*
742 * Other, TV specific properties: margins & TV modes.
743 */
744 dev->mode_config.tv_left_margin_property =
745 drm_property_create(dev, DRM_MODE_PROP_RANGE,
746 "left margin", 2);
747 dev->mode_config.tv_left_margin_property->values[0] = 0;
748 dev->mode_config.tv_left_margin_property->values[1] = 100;
749
750 dev->mode_config.tv_right_margin_property =
751 drm_property_create(dev, DRM_MODE_PROP_RANGE,
752 "right margin", 2);
753 dev->mode_config.tv_right_margin_property->values[0] = 0;
754 dev->mode_config.tv_right_margin_property->values[1] = 100;
755
756 dev->mode_config.tv_top_margin_property =
757 drm_property_create(dev, DRM_MODE_PROP_RANGE,
758 "top margin", 2);
759 dev->mode_config.tv_top_margin_property->values[0] = 0;
760 dev->mode_config.tv_top_margin_property->values[1] = 100;
761
762 dev->mode_config.tv_bottom_margin_property =
763 drm_property_create(dev, DRM_MODE_PROP_RANGE,
764 "bottom margin", 2);
765 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
766 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
767
768 dev->mode_config.tv_mode_property =
769 drm_property_create(dev, DRM_MODE_PROP_ENUM,
770 "mode", num_modes);
771 for (i = 0; i < num_modes; i++)
772 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
773 i, modes[i]);
774
b6b7902e
FJ		 775 dev->mode_config.tv_brightness_property =
776 drm_property_create(dev, DRM_MODE_PROP_RANGE,
777 "brightness", 2);
778 dev->mode_config.tv_brightness_property->values[0] = 0;
779 dev->mode_config.tv_brightness_property->values[1] = 100;
780
781 dev->mode_config.tv_contrast_property =
782 drm_property_create(dev, DRM_MODE_PROP_RANGE,
783 "contrast", 2);
784 dev->mode_config.tv_contrast_property->values[0] = 0;
785 dev->mode_config.tv_contrast_property->values[1] = 100;
786
787 dev->mode_config.tv_flicker_reduction_property =
788 drm_property_create(dev, DRM_MODE_PROP_RANGE,
789 "flicker reduction", 2);
790 dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
791 dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
792
a75f0236
FJ		 793 dev->mode_config.tv_overscan_property =
794 drm_property_create(dev, DRM_MODE_PROP_RANGE,
795 "overscan", 2);
796 dev->mode_config.tv_overscan_property->values[0] = 0;
797 dev->mode_config.tv_overscan_property->values[1] = 100;
798
799 dev->mode_config.tv_saturation_property =
800 drm_property_create(dev, DRM_MODE_PROP_RANGE,
801 "saturation", 2);
802 dev->mode_config.tv_saturation_property->values[0] = 0;
803 dev->mode_config.tv_saturation_property->values[1] = 100;
804
805 dev->mode_config.tv_hue_property =
806 drm_property_create(dev, DRM_MODE_PROP_RANGE,
807 "hue", 2);
808 dev->mode_config.tv_hue_property->values[0] = 0;
809 dev->mode_config.tv_hue_property->values[1] = 100;
810
f453ba04
DA		 811 return 0;
812}
813EXPORT_SYMBOL(drm_mode_create_tv_properties);
814
815/**
816 * drm_mode_create_scaling_mode_property - create scaling mode property
817 * @dev: DRM device
818 *
819 * Called by a driver the first time it's needed, must be attached to desired
820 * connectors.
821 */
822int drm_mode_create_scaling_mode_property(struct drm_device *dev)
823{
824 struct drm_property *scaling_mode;
f453ba04
DA		 825
826 if (dev->mode_config.scaling_mode_property)
827 return 0;
828
829 scaling_mode =
4a67d391
SH		 830 drm_property_create_enum(dev, 0, "scaling mode",
831 drm_scaling_mode_enum_list,
f453ba04 832 ARRAY_SIZE(drm_scaling_mode_enum_list));
f453ba04
DA		 833
834 dev->mode_config.scaling_mode_property = scaling_mode;
835
836 return 0;
837}
838EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
839
840/**
841 * drm_mode_create_dithering_property - create dithering property
842 * @dev: DRM device
843 *
844 * Called by a driver the first time it's needed, must be attached to desired
845 * connectors.
846 */
847int drm_mode_create_dithering_property(struct drm_device *dev)
848{
849 struct drm_property *dithering_mode;
f453ba04
DA		 850
851 if (dev->mode_config.dithering_mode_property)
852 return 0;
853
854 dithering_mode =
4a67d391
SH		 855 drm_property_create_enum(dev, 0, "dithering",
856 drm_dithering_mode_enum_list,
f453ba04 857 ARRAY_SIZE(drm_dithering_mode_enum_list));
f453ba04
DA		 858 dev->mode_config.dithering_mode_property = dithering_mode;
859
860 return 0;
861}
862EXPORT_SYMBOL(drm_mode_create_dithering_property);
863
884840aa
JB		 864/**
865 * drm_mode_create_dirty_property - create dirty property
866 * @dev: DRM device
867 *
868 * Called by a driver the first time it's needed, must be attached to desired
869 * connectors.
870 */
871int drm_mode_create_dirty_info_property(struct drm_device *dev)
872{
873 struct drm_property *dirty_info;
884840aa
JB		 874
875 if (dev->mode_config.dirty_info_property)
876 return 0;
877
878 dirty_info =
4a67d391 879 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
884840aa 880 "dirty",
4a67d391 881 drm_dirty_info_enum_list,
884840aa 882 ARRAY_SIZE(drm_dirty_info_enum_list));
884840aa
JB		 883 dev->mode_config.dirty_info_property = dirty_info;
884
885 return 0;
886}
887EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
888
f453ba04
DA		 889/**
890 * drm_mode_config_init - initialize DRM mode_configuration structure
891 * @dev: DRM device
892 *
893 * LOCKING:
894 * None, should happen single threaded at init time.
895 *
896 * Initialize @dev's mode_config structure, used for tracking the graphics
897 * configuration of @dev.
898 */
899void drm_mode_config_init(struct drm_device *dev)
900{
901 mutex_init(&dev->mode_config.mutex);
ad2563c2 902 mutex_init(&dev->mode_config.idr_mutex);
f453ba04 903 INIT_LIST_HEAD(&dev->mode_config.fb_list);
f453ba04
DA		 904 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
905 INIT_LIST_HEAD(&dev->mode_config.connector_list);
906 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
907 INIT_LIST_HEAD(&dev->mode_config.property_list);
908 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
8cf5c917 909 INIT_LIST_HEAD(&dev->mode_config.plane_list);
f453ba04
DA		 910 idr_init(&dev->mode_config.crtc_idr);
911
912 mutex_lock(&dev->mode_config.mutex);
913 drm_mode_create_standard_connector_properties(dev);
914 mutex_unlock(&dev->mode_config.mutex);
915
916 /* Just to be sure */
917 dev->mode_config.num_fb = 0;
918 dev->mode_config.num_connector = 0;
919 dev->mode_config.num_crtc = 0;
920 dev->mode_config.num_encoder = 0;
f453ba04
DA		 921}
922EXPORT_SYMBOL(drm_mode_config_init);
923
924int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
925{
926 uint32_t total_objects = 0;
927
928 total_objects += dev->mode_config.num_crtc;
929 total_objects += dev->mode_config.num_connector;
930 total_objects += dev->mode_config.num_encoder;
931
f453ba04
DA		 932 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
933 if (!group->id_list)
934 return -ENOMEM;
935
936 group->num_crtcs = 0;
937 group->num_connectors = 0;
938 group->num_encoders = 0;
939 return 0;
940}
941
942int drm_mode_group_init_legacy_group(struct drm_device *dev,
943 struct drm_mode_group *group)
944{
945 struct drm_crtc *crtc;
946 struct drm_encoder *encoder;
947 struct drm_connector *connector;
948 int ret;
949
950 if ((ret = drm_mode_group_init(dev, group)))
951 return ret;
952
953 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
954 group->id_list[group->num_crtcs++] = crtc->base.id;
955
956 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
957 group->id_list[group->num_crtcs + group->num_encoders++] =
958 encoder->base.id;
959
960 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
961 group->id_list[group->num_crtcs + group->num_encoders +
962 group->num_connectors++] = connector->base.id;
963
964 return 0;
965}
966
967/**
968 * drm_mode_config_cleanup - free up DRM mode_config info
969 * @dev: DRM device
970 *
971 * LOCKING:
972 * Caller must hold mode config lock.
973 *
974 * Free up all the connectors and CRTCs associated with this DRM device, then
975 * free up the framebuffers and associated buffer objects.
976 *
977 * FIXME: cleanup any dangling user buffer objects too
978 */
979void drm_mode_config_cleanup(struct drm_device *dev)
980{
981 struct drm_connector *connector, *ot;
982 struct drm_crtc *crtc, *ct;
983 struct drm_encoder *encoder, *enct;
984 struct drm_framebuffer *fb, *fbt;
985 struct drm_property *property, *pt;
8cf5c917 986 struct drm_plane *plane, *plt;
f453ba04
DA		 987
988 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
989 head) {
990 encoder->funcs->destroy(encoder);
991 }
992
993 list_for_each_entry_safe(connector, ot,
994 &dev->mode_config.connector_list, head) {
995 connector->funcs->destroy(connector);
996 }
997
998 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
999 head) {
1000 drm_property_destroy(dev, property);
1001 }
1002
1003 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1004 fb->funcs->destroy(fb);
1005 }
1006
1007 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1008 crtc->funcs->destroy(crtc);
1009 }
1010
8cf5c917
JB		 1011 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1012 head) {
1013 plane->funcs->destroy(plane);
1014 }
59ce062e
SH		 1015
1016 idr_remove_all(&dev->mode_config.crtc_idr);
1017 idr_destroy(&dev->mode_config.crtc_idr);
f453ba04
DA		 1018}
1019EXPORT_SYMBOL(drm_mode_config_cleanup);
1020
f453ba04
DA		 1021/**
1022 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1023 * @out: drm_mode_modeinfo struct to return to the user
1024 * @in: drm_display_mode to use
1025 *
1026 * LOCKING:
1027 * None.
1028 *
1029 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1030 * the user.
1031 */
1032void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1033 struct drm_display_mode *in)
1034{
1035 out->clock = in->clock;
1036 out->hdisplay = in->hdisplay;
1037 out->hsync_start = in->hsync_start;
1038 out->hsync_end = in->hsync_end;
1039 out->htotal = in->htotal;
1040 out->hskew = in->hskew;
1041 out->vdisplay = in->vdisplay;
1042 out->vsync_start = in->vsync_start;
1043 out->vsync_end = in->vsync_end;
1044 out->vtotal = in->vtotal;
1045 out->vscan = in->vscan;
1046 out->vrefresh = in->vrefresh;
1047 out->flags = in->flags;
1048 out->type = in->type;
1049 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1050 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1051}
1052
1053/**
1054 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1055 * @out: drm_display_mode to return to the user
1056 * @in: drm_mode_modeinfo to use
1057 *
1058 * LOCKING:
1059 * None.
1060 *
1061 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1062 * the caller.
1063 */
1064void drm_crtc_convert_umode(struct drm_display_mode *out,
1065 struct drm_mode_modeinfo *in)
1066{
1067 out->clock = in->clock;
1068 out->hdisplay = in->hdisplay;
1069 out->hsync_start = in->hsync_start;
1070 out->hsync_end = in->hsync_end;
1071 out->htotal = in->htotal;
1072 out->hskew = in->hskew;
1073 out->vdisplay = in->vdisplay;
1074 out->vsync_start = in->vsync_start;
1075 out->vsync_end = in->vsync_end;
1076 out->vtotal = in->vtotal;
1077 out->vscan = in->vscan;
1078 out->vrefresh = in->vrefresh;
1079 out->flags = in->flags;
1080 out->type = in->type;
1081 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1082 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1083}
1084
1085/**
1086 * drm_mode_getresources - get graphics configuration
1087 * @inode: inode from the ioctl
1088 * @filp: file * from the ioctl
1089 * @cmd: cmd from ioctl
1090 * @arg: arg from ioctl
1091 *
1092 * LOCKING:
1093 * Takes mode config lock.
1094 *
1095 * Construct a set of configuration description structures and return
1096 * them to the user, including CRTC, connector and framebuffer configuration.
1097 *
1098 * Called by the user via ioctl.
1099 *
1100 * RETURNS:
1101 * Zero on success, errno on failure.
1102 */
1103int drm_mode_getresources(struct drm_device *dev, void *data,
1104 struct drm_file *file_priv)
1105{
1106 struct drm_mode_card_res *card_res = data;
1107 struct list_head *lh;
1108 struct drm_framebuffer *fb;
1109 struct drm_connector *connector;
1110 struct drm_crtc *crtc;
1111 struct drm_encoder *encoder;
1112 int ret = 0;
1113 int connector_count = 0;
1114 int crtc_count = 0;
1115 int fb_count = 0;
1116 int encoder_count = 0;
1117 int copied = 0, i;
1118 uint32_t __user *fb_id;
1119 uint32_t __user *crtc_id;
1120 uint32_t __user *connector_id;
1121 uint32_t __user *encoder_id;
1122 struct drm_mode_group *mode_group;
1123
fb3b06c8
DA		 1124 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1125 return -EINVAL;
1126
f453ba04
DA		 1127 mutex_lock(&dev->mode_config.mutex);
1128
1129 /*
1130 * For the non-control nodes we need to limit the list of resources
1131 * by IDs in the group list for this node
1132 */
1133 list_for_each(lh, &file_priv->fbs)
1134 fb_count++;
1135
1136 mode_group = &file_priv->master->minor->mode_group;
1137 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1138
1139 list_for_each(lh, &dev->mode_config.crtc_list)
1140 crtc_count++;
1141
1142 list_for_each(lh, &dev->mode_config.connector_list)
1143 connector_count++;
1144
1145 list_for_each(lh, &dev->mode_config.encoder_list)
1146 encoder_count++;
1147 } else {
1148
1149 crtc_count = mode_group->num_crtcs;
1150 connector_count = mode_group->num_connectors;
1151 encoder_count = mode_group->num_encoders;
1152 }
1153
1154 card_res->max_height = dev->mode_config.max_height;
1155 card_res->min_height = dev->mode_config.min_height;
1156 card_res->max_width = dev->mode_config.max_width;
1157 card_res->min_width = dev->mode_config.min_width;
1158
1159 /* handle this in 4 parts */
1160 /* FBs */
1161 if (card_res->count_fbs >= fb_count) {
1162 copied = 0;
1163 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
618c75e4 1164 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
f453ba04
DA		 1165 if (put_user(fb->base.id, fb_id + copied)) {
1166 ret = -EFAULT;
1167 goto out;
1168 }
1169 copied++;
1170 }
1171 }
1172 card_res->count_fbs = fb_count;
1173
1174 /* CRTCs */
1175 if (card_res->count_crtcs >= crtc_count) {
1176 copied = 0;
1177 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1178 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1179 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1180 head) {
9440106b 1181 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1182 if (put_user(crtc->base.id, crtc_id + copied)) {
1183 ret = -EFAULT;
1184 goto out;
1185 }
1186 copied++;
1187 }
1188 } else {
1189 for (i = 0; i < mode_group->num_crtcs; i++) {
1190 if (put_user(mode_group->id_list[i],
1191 crtc_id + copied)) {
1192 ret = -EFAULT;
1193 goto out;
1194 }
1195 copied++;
1196 }
1197 }
1198 }
1199 card_res->count_crtcs = crtc_count;
1200
1201 /* Encoders */
1202 if (card_res->count_encoders >= encoder_count) {
1203 copied = 0;
1204 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1205 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1206 list_for_each_entry(encoder,
1207 &dev->mode_config.encoder_list,
1208 head) {
9440106b
JG		 1209 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1210 drm_get_encoder_name(encoder));
f453ba04
DA		 1211 if (put_user(encoder->base.id, encoder_id +
1212 copied)) {
1213 ret = -EFAULT;
1214 goto out;
1215 }
1216 copied++;
1217 }
1218 } else {
1219 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1220 if (put_user(mode_group->id_list[i],
1221 encoder_id + copied)) {
1222 ret = -EFAULT;
1223 goto out;
1224 }
1225 copied++;
1226 }
1227
1228 }
1229 }
1230 card_res->count_encoders = encoder_count;
1231
1232 /* Connectors */
1233 if (card_res->count_connectors >= connector_count) {
1234 copied = 0;
1235 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1236 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1237 list_for_each_entry(connector,
1238 &dev->mode_config.connector_list,
1239 head) {
9440106b
JG		 1240 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1241 connector->base.id,
1242 drm_get_connector_name(connector));
f453ba04
DA		 1243 if (put_user(connector->base.id,
1244 connector_id + copied)) {
1245 ret = -EFAULT;
1246 goto out;
1247 }
1248 copied++;
1249 }
1250 } else {
1251 int start = mode_group->num_crtcs +
1252 mode_group->num_encoders;
1253 for (i = start; i < start + mode_group->num_connectors; i++) {
1254 if (put_user(mode_group->id_list[i],
1255 connector_id + copied)) {
1256 ret = -EFAULT;
1257 goto out;
1258 }
1259 copied++;
1260 }
1261 }
1262 }
1263 card_res->count_connectors = connector_count;
1264
9440106b 1265 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1266 card_res->count_connectors, card_res->count_encoders);
1267
1268out:
1269 mutex_unlock(&dev->mode_config.mutex);
1270 return ret;
1271}
1272
1273/**
1274 * drm_mode_getcrtc - get CRTC configuration
1275 * @inode: inode from the ioctl
1276 * @filp: file * from the ioctl
1277 * @cmd: cmd from ioctl
1278 * @arg: arg from ioctl
1279 *
1280 * LOCKING:
b20f3867 1281 * Takes mode config lock.
f453ba04
DA		 1282 *
1283 * Construct a CRTC configuration structure to return to the user.
1284 *
1285 * Called by the user via ioctl.
1286 *
1287 * RETURNS:
1288 * Zero on success, errno on failure.
1289 */
1290int drm_mode_getcrtc(struct drm_device *dev,
1291 void *data, struct drm_file *file_priv)
1292{
1293 struct drm_mode_crtc *crtc_resp = data;
1294 struct drm_crtc *crtc;
1295 struct drm_mode_object *obj;
1296 int ret = 0;
1297
fb3b06c8
DA		 1298 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1299 return -EINVAL;
1300
f453ba04
DA		 1301 mutex_lock(&dev->mode_config.mutex);
1302
1303 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1304 DRM_MODE_OBJECT_CRTC);
1305 if (!obj) {
1306 ret = -EINVAL;
1307 goto out;
1308 }
1309 crtc = obj_to_crtc(obj);
1310
1311 crtc_resp->x = crtc->x;
1312 crtc_resp->y = crtc->y;
1313 crtc_resp->gamma_size = crtc->gamma_size;
1314 if (crtc->fb)
1315 crtc_resp->fb_id = crtc->fb->base.id;
1316 else
1317 crtc_resp->fb_id = 0;
1318
1319 if (crtc->enabled) {
1320
1321 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1322 crtc_resp->mode_valid = 1;
1323
1324 } else {
1325 crtc_resp->mode_valid = 0;
1326 }
1327
1328out:
1329 mutex_unlock(&dev->mode_config.mutex);
1330 return ret;
1331}
1332
1333/**
1334 * drm_mode_getconnector - get connector configuration
1335 * @inode: inode from the ioctl
1336 * @filp: file * from the ioctl
1337 * @cmd: cmd from ioctl
1338 * @arg: arg from ioctl
1339 *
1340 * LOCKING:
b20f3867 1341 * Takes mode config lock.
f453ba04
DA		 1342 *
1343 * Construct a connector configuration structure to return to the user.
1344 *
1345 * Called by the user via ioctl.
1346 *
1347 * RETURNS:
1348 * Zero on success, errno on failure.
1349 */
1350int drm_mode_getconnector(struct drm_device *dev, void *data,
1351 struct drm_file *file_priv)
1352{
1353 struct drm_mode_get_connector *out_resp = data;
1354 struct drm_mode_object *obj;
1355 struct drm_connector *connector;
1356 struct drm_display_mode *mode;
1357 int mode_count = 0;
1358 int props_count = 0;
1359 int encoders_count = 0;
1360 int ret = 0;
1361 int copied = 0;
1362 int i;
1363 struct drm_mode_modeinfo u_mode;
1364 struct drm_mode_modeinfo __user *mode_ptr;
1365 uint32_t __user *prop_ptr;
1366 uint64_t __user *prop_values;
1367 uint32_t __user *encoder_ptr;
1368
fb3b06c8
DA		 1369 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1370 return -EINVAL;
1371
f453ba04
DA		 1372 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1373
9440106b 1374 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04
DA		 1375
1376 mutex_lock(&dev->mode_config.mutex);
1377
1378 obj = drm_mode_object_find(dev, out_resp->connector_id,
1379 DRM_MODE_OBJECT_CONNECTOR);
1380 if (!obj) {
1381 ret = -EINVAL;
1382 goto out;
1383 }
1384 connector = obj_to_connector(obj);
1385
1386 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1387 if (connector->property_ids[i] != 0) {
1388 props_count++;
1389 }
1390 }
1391
1392 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1393 if (connector->encoder_ids[i] != 0) {
1394 encoders_count++;
1395 }
1396 }
1397
1398 if (out_resp->count_modes == 0) {
1399 connector->funcs->fill_modes(connector,
1400 dev->mode_config.max_width,
1401 dev->mode_config.max_height);
1402 }
1403
1404 /* delayed so we get modes regardless of pre-fill_modes state */
1405 list_for_each_entry(mode, &connector->modes, head)
1406 mode_count++;
1407
1408 out_resp->connector_id = connector->base.id;
1409 out_resp->connector_type = connector->connector_type;
1410 out_resp->connector_type_id = connector->connector_type_id;
1411 out_resp->mm_width = connector->display_info.width_mm;
1412 out_resp->mm_height = connector->display_info.height_mm;
1413 out_resp->subpixel = connector->display_info.subpixel_order;
1414 out_resp->connection = connector->status;
1415 if (connector->encoder)
1416 out_resp->encoder_id = connector->encoder->base.id;
1417 else
1418 out_resp->encoder_id = 0;
1419
1420 /*
1421 * This ioctl is called twice, once to determine how much space is
1422 * needed, and the 2nd time to fill it.
1423 */
1424 if ((out_resp->count_modes >= mode_count) && mode_count) {
1425 copied = 0;
81f6c7f8 1426 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04
DA		 1427 list_for_each_entry(mode, &connector->modes, head) {
1428 drm_crtc_convert_to_umode(&u_mode, mode);
1429 if (copy_to_user(mode_ptr + copied,
1430 &u_mode, sizeof(u_mode))) {
1431 ret = -EFAULT;
1432 goto out;
1433 }
1434 copied++;
1435 }
1436 }
1437 out_resp->count_modes = mode_count;
1438
1439 if ((out_resp->count_props >= props_count) && props_count) {
1440 copied = 0;
81f6c7f8
VS		 1441 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1442 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
f453ba04
DA		 1443 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1444 if (connector->property_ids[i] != 0) {
1445 if (put_user(connector->property_ids[i],
1446 prop_ptr + copied)) {
1447 ret = -EFAULT;
1448 goto out;
1449 }
1450
1451 if (put_user(connector->property_values[i],
1452 prop_values + copied)) {
1453 ret = -EFAULT;
1454 goto out;
1455 }
1456 copied++;
1457 }
1458 }
1459 }
1460 out_resp->count_props = props_count;
1461
1462 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1463 copied = 0;
81f6c7f8 1464 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1465 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1466 if (connector->encoder_ids[i] != 0) {
1467 if (put_user(connector->encoder_ids[i],
1468 encoder_ptr + copied)) {
1469 ret = -EFAULT;
1470 goto out;
1471 }
1472 copied++;
1473 }
1474 }
1475 }
1476 out_resp->count_encoders = encoders_count;
1477
1478out:
1479 mutex_unlock(&dev->mode_config.mutex);
1480 return ret;
1481}
1482
1483int drm_mode_getencoder(struct drm_device *dev, void *data,
1484 struct drm_file *file_priv)
1485{
1486 struct drm_mode_get_encoder *enc_resp = data;
1487 struct drm_mode_object *obj;
1488 struct drm_encoder *encoder;
1489 int ret = 0;
1490
fb3b06c8
DA		 1491 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1492 return -EINVAL;
1493
f453ba04
DA		 1494 mutex_lock(&dev->mode_config.mutex);
1495 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1496 DRM_MODE_OBJECT_ENCODER);
1497 if (!obj) {
1498 ret = -EINVAL;
1499 goto out;
1500 }
1501 encoder = obj_to_encoder(obj);
1502
1503 if (encoder->crtc)
1504 enc_resp->crtc_id = encoder->crtc->base.id;
1505 else
1506 enc_resp->crtc_id = 0;
1507 enc_resp->encoder_type = encoder->encoder_type;
1508 enc_resp->encoder_id = encoder->base.id;
1509 enc_resp->possible_crtcs = encoder->possible_crtcs;
1510 enc_resp->possible_clones = encoder->possible_clones;
1511
1512out:
1513 mutex_unlock(&dev->mode_config.mutex);
1514 return ret;
1515}
1516
8cf5c917
JB		 1517/**
1518 * drm_mode_getplane_res - get plane info
1519 * @dev: DRM device
1520 * @data: ioctl data
1521 * @file_priv: DRM file info
1522 *
b20f3867
SH		 1523 * LOCKING:
1524 * Takes mode config lock.
1525 *
8cf5c917
JB		 1526 * Return an plane count and set of IDs.
1527 */
1528int drm_mode_getplane_res(struct drm_device *dev, void *data,
1529 struct drm_file *file_priv)
1530{
1531 struct drm_mode_get_plane_res *plane_resp = data;
1532 struct drm_mode_config *config;
1533 struct drm_plane *plane;
1534 uint32_t __user *plane_ptr;
1535 int copied = 0, ret = 0;
1536
1537 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1538 return -EINVAL;
1539
1540 mutex_lock(&dev->mode_config.mutex);
1541 config = &dev->mode_config;
1542
1543 /*
1544 * This ioctl is called twice, once to determine how much space is
1545 * needed, and the 2nd time to fill it.
1546 */
1547 if (config->num_plane &&
1548 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1549 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1550
1551 list_for_each_entry(plane, &config->plane_list, head) {
1552 if (put_user(plane->base.id, plane_ptr + copied)) {
1553 ret = -EFAULT;
1554 goto out;
1555 }
1556 copied++;
1557 }
1558 }
1559 plane_resp->count_planes = config->num_plane;
1560
1561out:
1562 mutex_unlock(&dev->mode_config.mutex);
1563 return ret;
1564}
1565
1566/**
1567 * drm_mode_getplane - get plane info
1568 * @dev: DRM device
1569 * @data: ioctl data
1570 * @file_priv: DRM file info
1571 *
b20f3867
SH		 1572 * LOCKING:
1573 * Takes mode config lock.
1574 *
8cf5c917
JB		 1575 * Return plane info, including formats supported, gamma size, any
1576 * current fb, etc.
1577 */
1578int drm_mode_getplane(struct drm_device *dev, void *data,
1579 struct drm_file *file_priv)
1580{
1581 struct drm_mode_get_plane *plane_resp = data;
1582 struct drm_mode_object *obj;
1583 struct drm_plane *plane;
1584 uint32_t __user *format_ptr;
1585 int ret = 0;
1586
1587 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1588 return -EINVAL;
1589
1590 mutex_lock(&dev->mode_config.mutex);
1591 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1592 DRM_MODE_OBJECT_PLANE);
1593 if (!obj) {
1594 ret = -ENOENT;
1595 goto out;
1596 }
1597 plane = obj_to_plane(obj);
1598
1599 if (plane->crtc)
1600 plane_resp->crtc_id = plane->crtc->base.id;
1601 else
1602 plane_resp->crtc_id = 0;
1603
1604 if (plane->fb)
1605 plane_resp->fb_id = plane->fb->base.id;
1606 else
1607 plane_resp->fb_id = 0;
1608
1609 plane_resp->plane_id = plane->base.id;
1610 plane_resp->possible_crtcs = plane->possible_crtcs;
1611 plane_resp->gamma_size = plane->gamma_size;
1612
1613 /*
1614 * This ioctl is called twice, once to determine how much space is
1615 * needed, and the 2nd time to fill it.
1616 */
1617 if (plane->format_count &&
1618 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1619 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1620 if (copy_to_user(format_ptr,
1621 plane->format_types,
1622 sizeof(uint32_t) * plane->format_count)) {
1623 ret = -EFAULT;
1624 goto out;
1625 }
1626 }
1627 plane_resp->count_format_types = plane->format_count;
1628
1629out:
1630 mutex_unlock(&dev->mode_config.mutex);
1631 return ret;
1632}
1633
1634/**
1635 * drm_mode_setplane - set up or tear down an plane
1636 * @dev: DRM device
1637 * @data: ioctl data*
1638 * @file_prive: DRM file info
1639 *
b20f3867
SH		 1640 * LOCKING:
1641 * Takes mode config lock.
1642 *
8cf5c917
JB		 1643 * Set plane info, including placement, fb, scaling, and other factors.
1644 * Or pass a NULL fb to disable.
1645 */
1646int drm_mode_setplane(struct drm_device *dev, void *data,
1647 struct drm_file *file_priv)
1648{
1649 struct drm_mode_set_plane *plane_req = data;
1650 struct drm_mode_object *obj;
1651 struct drm_plane *plane;
1652 struct drm_crtc *crtc;
1653 struct drm_framebuffer *fb;
1654 int ret = 0;
42ef8789 1655 unsigned int fb_width, fb_height;
62443be6 1656 int i;
8cf5c917
JB		 1657
1658 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1659 return -EINVAL;
1660
1661 mutex_lock(&dev->mode_config.mutex);
1662
1663 /*
1664 * First, find the plane, crtc, and fb objects. If not available,
1665 * we don't bother to call the driver.
1666 */
1667 obj = drm_mode_object_find(dev, plane_req->plane_id,
1668 DRM_MODE_OBJECT_PLANE);
1669 if (!obj) {
1670 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1671 plane_req->plane_id);
1672 ret = -ENOENT;
1673 goto out;
1674 }
1675 plane = obj_to_plane(obj);
1676
1677 /* No fb means shut it down */
1678 if (!plane_req->fb_id) {
1679 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1680 plane->crtc = NULL;
1681 plane->fb = NULL;
8cf5c917
JB		 1682 goto out;
1683 }
1684
1685 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1686 DRM_MODE_OBJECT_CRTC);
1687 if (!obj) {
1688 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1689 plane_req->crtc_id);
1690 ret = -ENOENT;
1691 goto out;
1692 }
1693 crtc = obj_to_crtc(obj);
1694
1695 obj = drm_mode_object_find(dev, plane_req->fb_id,
1696 DRM_MODE_OBJECT_FB);
1697 if (!obj) {
1698 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1699 plane_req->fb_id);
1700 ret = -ENOENT;
1701 goto out;
1702 }
1703 fb = obj_to_fb(obj);
1704
62443be6
VS		 1705 /* Check whether this plane supports the fb pixel format. */
1706 for (i = 0; i < plane->format_count; i++)
1707 if (fb->pixel_format == plane->format_types[i])
1708 break;
1709 if (i == plane->format_count) {
1710 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1711 ret = -EINVAL;
1712 goto out;
1713 }
1714
42ef8789
VS		 1715 fb_width = fb->width << 16;
1716 fb_height = fb->height << 16;
1717
1718 /* Make sure source coordinates are inside the fb. */
1719 if (plane_req->src_w > fb_width ||
1720 plane_req->src_x > fb_width - plane_req->src_w ||
1721 plane_req->src_h > fb_height ||
1722 plane_req->src_y > fb_height - plane_req->src_h) {
1723 DRM_DEBUG_KMS("Invalid source coordinates "
1724 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1725 plane_req->src_w >> 16,
1726 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1727 plane_req->src_h >> 16,
1728 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1729 plane_req->src_x >> 16,
1730 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1731 plane_req->src_y >> 16,
1732 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1733 ret = -ENOSPC;
1734 goto out;
1735 }
1736
687a0400
VS		 1737 /* Give drivers some help against integer overflows */
1738 if (plane_req->crtc_w > INT_MAX ||
1739 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1740 plane_req->crtc_h > INT_MAX ||
1741 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1742 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1743 plane_req->crtc_w, plane_req->crtc_h,
1744 plane_req->crtc_x, plane_req->crtc_y);
1745 ret = -ERANGE;
1746 goto out;
1747 }
1748
8cf5c917
JB		 1749 ret = plane->funcs->update_plane(plane, crtc, fb,
1750 plane_req->crtc_x, plane_req->crtc_y,
1751 plane_req->crtc_w, plane_req->crtc_h,
1752 plane_req->src_x, plane_req->src_y,
1753 plane_req->src_w, plane_req->src_h);
1754 if (!ret) {
1755 plane->crtc = crtc;
1756 plane->fb = fb;
1757 }
1758
1759out:
1760 mutex_unlock(&dev->mode_config.mutex);
1761
1762 return ret;
1763}
1764
f453ba04
DA		 1765/**
1766 * drm_mode_setcrtc - set CRTC configuration
1767 * @inode: inode from the ioctl
1768 * @filp: file * from the ioctl
1769 * @cmd: cmd from ioctl
1770 * @arg: arg from ioctl
1771 *
1772 * LOCKING:
b20f3867 1773 * Takes mode config lock.
f453ba04
DA		 1774 *
1775 * Build a new CRTC configuration based on user request.
1776 *
1777 * Called by the user via ioctl.
1778 *
1779 * RETURNS:
1780 * Zero on success, errno on failure.
1781 */
1782int drm_mode_setcrtc(struct drm_device *dev, void *data,
1783 struct drm_file *file_priv)
1784{
1785 struct drm_mode_config *config = &dev->mode_config;
1786 struct drm_mode_crtc *crtc_req = data;
1787 struct drm_mode_object *obj;
1788 struct drm_crtc *crtc, *crtcfb;
1789 struct drm_connector **connector_set = NULL, *connector;
1790 struct drm_framebuffer *fb = NULL;
1791 struct drm_display_mode *mode = NULL;
1792 struct drm_mode_set set;
1793 uint32_t __user *set_connectors_ptr;
1794 int ret = 0;
1795 int i;
1796
fb3b06c8
DA		 1797 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1798 return -EINVAL;
1799
f453ba04
DA		 1800 mutex_lock(&dev->mode_config.mutex);
1801 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1802 DRM_MODE_OBJECT_CRTC);
1803 if (!obj) {
58367ed6 1804 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 1805 ret = -EINVAL;
1806 goto out;
1807 }
1808 crtc = obj_to_crtc(obj);
9440106b 1809 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1810
1811 if (crtc_req->mode_valid) {
1812 /* If we have a mode we need a framebuffer. */
1813 /* If we pass -1, set the mode with the currently bound fb */
1814 if (crtc_req->fb_id == -1) {
1815 list_for_each_entry(crtcfb,
1816 &dev->mode_config.crtc_list, head) {
1817 if (crtcfb == crtc) {
58367ed6
ZY		 1818 DRM_DEBUG_KMS("Using current fb for "
1819 "setmode\n");
f453ba04
DA		 1820 fb = crtc->fb;
1821 }
1822 }
1823 } else {
1824 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1825 DRM_MODE_OBJECT_FB);
1826 if (!obj) {
58367ed6
ZY		 1827 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1828 crtc_req->fb_id);
f453ba04
DA		 1829 ret = -EINVAL;
1830 goto out;
1831 }
1832 fb = obj_to_fb(obj);
1833 }
1834
1835 mode = drm_mode_create(dev);
1836 drm_crtc_convert_umode(mode, &crtc_req->mode);
1837 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1838 }
1839
1840 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 1841 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 1842 ret = -EINVAL;
1843 goto out;
1844 }
1845
7781de74 1846 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 1847 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 1848 crtc_req->count_connectors);
1849 ret = -EINVAL;
1850 goto out;
1851 }
1852
1853 if (crtc_req->count_connectors > 0) {
1854 u32 out_id;
1855
1856 /* Avoid unbounded kernel memory allocation */
1857 if (crtc_req->count_connectors > config->num_connector) {
1858 ret = -EINVAL;
1859 goto out;
1860 }
1861
1862 connector_set = kmalloc(crtc_req->count_connectors *
1863 sizeof(struct drm_connector *),
1864 GFP_KERNEL);
1865 if (!connector_set) {
1866 ret = -ENOMEM;
1867 goto out;
1868 }
1869
1870 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 1871 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 1872 if (get_user(out_id, &set_connectors_ptr[i])) {
1873 ret = -EFAULT;
1874 goto out;
1875 }
1876
1877 obj = drm_mode_object_find(dev, out_id,
1878 DRM_MODE_OBJECT_CONNECTOR);
1879 if (!obj) {
58367ed6
ZY		 1880 DRM_DEBUG_KMS("Connector id %d unknown\n",
1881 out_id);
f453ba04
DA		 1882 ret = -EINVAL;
1883 goto out;
1884 }
1885 connector = obj_to_connector(obj);
9440106b
JG		 1886 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1887 connector->base.id,
1888 drm_get_connector_name(connector));
f453ba04
DA		 1889
1890 connector_set[i] = connector;
1891 }
1892 }
1893
1894 set.crtc = crtc;
1895 set.x = crtc_req->x;
1896 set.y = crtc_req->y;
1897 set.mode = mode;
1898 set.connectors = connector_set;
1899 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 1900 set.fb = fb;
f453ba04
DA		 1901 ret = crtc->funcs->set_config(&set);
1902
1903out:
1904 kfree(connector_set);
1905 mutex_unlock(&dev->mode_config.mutex);
1906 return ret;
1907}
1908
1909int drm_mode_cursor_ioctl(struct drm_device *dev,
1910 void *data, struct drm_file *file_priv)
1911{
1912 struct drm_mode_cursor *req = data;
1913 struct drm_mode_object *obj;
1914 struct drm_crtc *crtc;
1915 int ret = 0;
1916
fb3b06c8
DA		 1917 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1918 return -EINVAL;
1919
acb4b992 1920 if (!req->flags)
f453ba04 1921 return -EINVAL;
f453ba04
DA		 1922
1923 mutex_lock(&dev->mode_config.mutex);
e0c8463a 1924 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 1925 if (!obj) {
58367ed6 1926 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
f453ba04
DA		 1927 ret = -EINVAL;
1928 goto out;
1929 }
1930 crtc = obj_to_crtc(obj);
1931
1932 if (req->flags & DRM_MODE_CURSOR_BO) {
1933 if (!crtc->funcs->cursor_set) {
f453ba04
DA		 1934 ret = -ENXIO;
1935 goto out;
1936 }
1937 /* Turns off the cursor if handle is 0 */
1938 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1939 req->width, req->height);
1940 }
1941
1942 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1943 if (crtc->funcs->cursor_move) {
1944 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1945 } else {
f453ba04
DA		 1946 ret = -EFAULT;
1947 goto out;
1948 }
1949 }
1950out:
1951 mutex_unlock(&dev->mode_config.mutex);
1952 return ret;
1953}
1954
308e5bcb
JB		 1955/* Original addfb only supported RGB formats, so figure out which one */
1956uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1957{
1958 uint32_t fmt;
1959
1960 switch (bpp) {
1961 case 8:
04b3924d 1962 fmt = DRM_FORMAT_RGB332;
308e5bcb
JB		 1963 break;
1964 case 16:
1965 if (depth == 15)
04b3924d 1966 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 1967 else
04b3924d 1968 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 1969 break;
1970 case 24:
04b3924d 1971 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 1972 break;
1973 case 32:
1974 if (depth == 24)
04b3924d 1975 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 1976 else if (depth == 30)
04b3924d 1977 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 1978 else
04b3924d 1979 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 1980 break;
1981 default:
04b3924d
VS		 1982 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
1983 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 1984 break;
1985 }
1986
1987 return fmt;
1988}
1989EXPORT_SYMBOL(drm_mode_legacy_fb_format);
1990
f453ba04
DA		 1991/**
1992 * drm_mode_addfb - add an FB to the graphics configuration
1993 * @inode: inode from the ioctl
1994 * @filp: file * from the ioctl
1995 * @cmd: cmd from ioctl
1996 * @arg: arg from ioctl
1997 *
1998 * LOCKING:
1999 * Takes mode config lock.
2000 *
2001 * Add a new FB to the specified CRTC, given a user request.
2002 *
2003 * Called by the user via ioctl.
2004 *
2005 * RETURNS:
2006 * Zero on success, errno on failure.
2007 */
2008int drm_mode_addfb(struct drm_device *dev,
2009 void *data, struct drm_file *file_priv)
2010{
308e5bcb
JB		 2011 struct drm_mode_fb_cmd *or = data;
2012 struct drm_mode_fb_cmd2 r = {};
2013 struct drm_mode_config *config = &dev->mode_config;
2014 struct drm_framebuffer *fb;
2015 int ret = 0;
2016
2017 /* Use new struct with format internally */
2018 r.fb_id = or->fb_id;
2019 r.width = or->width;
2020 r.height = or->height;
2021 r.pitches[0] = or->pitch;
2022 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2023 r.handles[0] = or->handle;
2024
2025 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2026 return -EINVAL;
2027
acb4b992 2028 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2029 return -EINVAL;
acb4b992
JB		 2030
2031 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2032 return -EINVAL;
308e5bcb
JB		 2033
2034 mutex_lock(&dev->mode_config.mutex);
2035
2036 /* TODO check buffer is sufficiently large */
2037 /* TODO setup destructor callback */
2038
2039 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2040 if (IS_ERR(fb)) {
2041 DRM_ERROR("could not create framebuffer\n");
2042 ret = PTR_ERR(fb);
2043 goto out;
2044 }
2045
2046 or->fb_id = fb->base.id;
2047 list_add(&fb->filp_head, &file_priv->fbs);
2048 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2049
2050out:
2051 mutex_unlock(&dev->mode_config.mutex);
2052 return ret;
2053}
2054
935b5977
VS		 2055static int format_check(struct drm_mode_fb_cmd2 *r)
2056{
2057 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2058
2059 switch (format) {
2060 case DRM_FORMAT_C8:
2061 case DRM_FORMAT_RGB332:
2062 case DRM_FORMAT_BGR233:
2063 case DRM_FORMAT_XRGB4444:
2064 case DRM_FORMAT_XBGR4444:
2065 case DRM_FORMAT_RGBX4444:
2066 case DRM_FORMAT_BGRX4444:
2067 case DRM_FORMAT_ARGB4444:
2068 case DRM_FORMAT_ABGR4444:
2069 case DRM_FORMAT_RGBA4444:
2070 case DRM_FORMAT_BGRA4444:
2071 case DRM_FORMAT_XRGB1555:
2072 case DRM_FORMAT_XBGR1555:
2073 case DRM_FORMAT_RGBX5551:
2074 case DRM_FORMAT_BGRX5551:
2075 case DRM_FORMAT_ARGB1555:
2076 case DRM_FORMAT_ABGR1555:
2077 case DRM_FORMAT_RGBA5551:
2078 case DRM_FORMAT_BGRA5551:
2079 case DRM_FORMAT_RGB565:
2080 case DRM_FORMAT_BGR565:
2081 case DRM_FORMAT_RGB888:
2082 case DRM_FORMAT_BGR888:
2083 case DRM_FORMAT_XRGB8888:
2084 case DRM_FORMAT_XBGR8888:
2085 case DRM_FORMAT_RGBX8888:
2086 case DRM_FORMAT_BGRX8888:
2087 case DRM_FORMAT_ARGB8888:
2088 case DRM_FORMAT_ABGR8888:
2089 case DRM_FORMAT_RGBA8888:
2090 case DRM_FORMAT_BGRA8888:
2091 case DRM_FORMAT_XRGB2101010:
2092 case DRM_FORMAT_XBGR2101010:
2093 case DRM_FORMAT_RGBX1010102:
2094 case DRM_FORMAT_BGRX1010102:
2095 case DRM_FORMAT_ARGB2101010:
2096 case DRM_FORMAT_ABGR2101010:
2097 case DRM_FORMAT_RGBA1010102:
2098 case DRM_FORMAT_BGRA1010102:
2099 case DRM_FORMAT_YUYV:
2100 case DRM_FORMAT_YVYU:
2101 case DRM_FORMAT_UYVY:
2102 case DRM_FORMAT_VYUY:
2103 case DRM_FORMAT_AYUV:
2104 case DRM_FORMAT_NV12:
2105 case DRM_FORMAT_NV21:
2106 case DRM_FORMAT_NV16:
2107 case DRM_FORMAT_NV61:
2108 case DRM_FORMAT_YUV410:
2109 case DRM_FORMAT_YVU410:
2110 case DRM_FORMAT_YUV411:
2111 case DRM_FORMAT_YVU411:
2112 case DRM_FORMAT_YUV420:
2113 case DRM_FORMAT_YVU420:
2114 case DRM_FORMAT_YUV422:
2115 case DRM_FORMAT_YVU422:
2116 case DRM_FORMAT_YUV444:
2117 case DRM_FORMAT_YVU444:
2118 return 0;
2119 default:
2120 return -EINVAL;
2121 }
2122}
2123
308e5bcb
JB		 2124/**
2125 * drm_mode_addfb2 - add an FB to the graphics configuration
2126 * @inode: inode from the ioctl
2127 * @filp: file * from the ioctl
2128 * @cmd: cmd from ioctl
2129 * @arg: arg from ioctl
2130 *
2131 * LOCKING:
2132 * Takes mode config lock.
2133 *
2134 * Add a new FB to the specified CRTC, given a user request with format.
2135 *
2136 * Called by the user via ioctl.
2137 *
2138 * RETURNS:
2139 * Zero on success, errno on failure.
2140 */
2141int drm_mode_addfb2(struct drm_device *dev,
2142 void *data, struct drm_file *file_priv)
2143{
2144 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2145 struct drm_mode_config *config = &dev->mode_config;
2146 struct drm_framebuffer *fb;
2147 int ret = 0;
2148
fb3b06c8
DA		 2149 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2150 return -EINVAL;
2151
f453ba04 2152 if ((config->min_width > r->width) || (r->width > config->max_width)) {
8cf5c917
JB		 2153 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2154 r->width, config->min_width, config->max_width);
f453ba04
DA		 2155 return -EINVAL;
2156 }
2157 if ((config->min_height > r->height) || (r->height > config->max_height)) {
8cf5c917
JB		 2158 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2159 r->height, config->min_height, config->max_height);
f453ba04
DA		 2160 return -EINVAL;
2161 }
2162
935b5977
VS		 2163 ret = format_check(r);
2164 if (ret) {
2165 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2166 return ret;
2167 }
2168
f453ba04
DA		 2169 mutex_lock(&dev->mode_config.mutex);
2170
f453ba04 2171 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2172 if (IS_ERR(fb)) {
f453ba04 2173 DRM_ERROR("could not create framebuffer\n");
cce13ff7 2174 ret = PTR_ERR(fb);
f453ba04
DA		 2175 goto out;
2176 }
2177
e0c8463a 2178 r->fb_id = fb->base.id;
f453ba04 2179 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2180 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
f453ba04
DA		 2181
2182out:
2183 mutex_unlock(&dev->mode_config.mutex);
2184 return ret;
2185}
2186
2187/**
2188 * drm_mode_rmfb - remove an FB from the configuration
2189 * @inode: inode from the ioctl
2190 * @filp: file * from the ioctl
2191 * @cmd: cmd from ioctl
2192 * @arg: arg from ioctl
2193 *
2194 * LOCKING:
2195 * Takes mode config lock.
2196 *
2197 * Remove the FB specified by the user.
2198 *
2199 * Called by the user via ioctl.
2200 *
2201 * RETURNS:
2202 * Zero on success, errno on failure.
2203 */
2204int drm_mode_rmfb(struct drm_device *dev,
2205 void *data, struct drm_file *file_priv)
2206{
2207 struct drm_mode_object *obj;
2208 struct drm_framebuffer *fb = NULL;
2209 struct drm_framebuffer *fbl = NULL;
2210 uint32_t *id = data;
2211 int ret = 0;
2212 int found = 0;
2213
fb3b06c8
DA		 2214 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2215 return -EINVAL;
2216
f453ba04
DA		 2217 mutex_lock(&dev->mode_config.mutex);
2218 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
25985edc 2219 /* TODO check that we really get a framebuffer back. */
f453ba04 2220 if (!obj) {
f453ba04
DA		 2221 ret = -EINVAL;
2222 goto out;
2223 }
2224 fb = obj_to_fb(obj);
2225
2226 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2227 if (fb == fbl)
2228 found = 1;
2229
2230 if (!found) {
f453ba04
DA		 2231 ret = -EINVAL;
2232 goto out;
2233 }
2234
2235 /* TODO release all crtc connected to the framebuffer */
2236 /* TODO unhock the destructor from the buffer object */
2237
2238 list_del(&fb->filp_head);
2239 fb->funcs->destroy(fb);
2240
2241out:
2242 mutex_unlock(&dev->mode_config.mutex);
2243 return ret;
2244}
2245
2246/**
2247 * drm_mode_getfb - get FB info
2248 * @inode: inode from the ioctl
2249 * @filp: file * from the ioctl
2250 * @cmd: cmd from ioctl
2251 * @arg: arg from ioctl
2252 *
2253 * LOCKING:
b20f3867 2254 * Takes mode config lock.
f453ba04
DA		 2255 *
2256 * Lookup the FB given its ID and return info about it.
2257 *
2258 * Called by the user via ioctl.
2259 *
2260 * RETURNS:
2261 * Zero on success, errno on failure.
2262 */
2263int drm_mode_getfb(struct drm_device *dev,
2264 void *data, struct drm_file *file_priv)
2265{
2266 struct drm_mode_fb_cmd *r = data;
2267 struct drm_mode_object *obj;
2268 struct drm_framebuffer *fb;
2269 int ret = 0;
2270
fb3b06c8
DA		 2271 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2272 return -EINVAL;
2273
f453ba04 2274 mutex_lock(&dev->mode_config.mutex);
e0c8463a 2275 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
f453ba04 2276 if (!obj) {
f453ba04
DA		 2277 ret = -EINVAL;
2278 goto out;
2279 }
2280 fb = obj_to_fb(obj);
2281
2282 r->height = fb->height;
2283 r->width = fb->width;
2284 r->depth = fb->depth;
2285 r->bpp = fb->bits_per_pixel;
01f2c773 2286 r->pitch = fb->pitches[0];
f453ba04
DA		 2287 fb->funcs->create_handle(fb, file_priv, &r->handle);
2288
2289out:
2290 mutex_unlock(&dev->mode_config.mutex);
2291 return ret;
2292}
2293
884840aa
JB		 2294int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2295 void *data, struct drm_file *file_priv)
2296{
2297 struct drm_clip_rect __user *clips_ptr;
2298 struct drm_clip_rect *clips = NULL;
2299 struct drm_mode_fb_dirty_cmd *r = data;
2300 struct drm_mode_object *obj;
2301 struct drm_framebuffer *fb;
2302 unsigned flags;
2303 int num_clips;
2304 int ret = 0;
2305
fb3b06c8
DA		 2306 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2307 return -EINVAL;
2308
884840aa
JB		 2309 mutex_lock(&dev->mode_config.mutex);
2310 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2311 if (!obj) {
884840aa
JB		 2312 ret = -EINVAL;
2313 goto out_err1;
2314 }
2315 fb = obj_to_fb(obj);
2316
2317 num_clips = r->num_clips;
81f6c7f8 2318 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2319
2320 if (!num_clips != !clips_ptr) {
2321 ret = -EINVAL;
2322 goto out_err1;
2323 }
2324
2325 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2326
2327 /* If userspace annotates copy, clips must come in pairs */
2328 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2329 ret = -EINVAL;
2330 goto out_err1;
2331 }
2332
2333 if (num_clips && clips_ptr) {
a5cd3351
XW		 2334 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2335 ret = -EINVAL;
2336 goto out_err1;
2337 }
884840aa
JB		 2338 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2339 if (!clips) {
2340 ret = -ENOMEM;
2341 goto out_err1;
2342 }
2343
2344 ret = copy_from_user(clips, clips_ptr,
2345 num_clips * sizeof(*clips));
e902a358
DC		 2346 if (ret) {
2347 ret = -EFAULT;
884840aa 2348 goto out_err2;
e902a358 2349 }
884840aa
JB		 2350 }
2351
2352 if (fb->funcs->dirty) {
02b00162
TH		 2353 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2354 clips, num_clips);
884840aa
JB		 2355 } else {
2356 ret = -ENOSYS;
2357 goto out_err2;
2358 }
2359
2360out_err2:
2361 kfree(clips);
2362out_err1:
2363 mutex_unlock(&dev->mode_config.mutex);
2364 return ret;
2365}
2366
2367
f453ba04
DA		 2368/**
2369 * drm_fb_release - remove and free the FBs on this file
2370 * @filp: file * from the ioctl
2371 *
2372 * LOCKING:
2373 * Takes mode config lock.
2374 *
2375 * Destroy all the FBs associated with @filp.
2376 *
2377 * Called by the user via ioctl.
2378 *
2379 * RETURNS:
2380 * Zero on success, errno on failure.
2381 */
ea39f835 2382void drm_fb_release(struct drm_file *priv)
f453ba04 2383{
f453ba04
DA		 2384 struct drm_device *dev = priv->minor->dev;
2385 struct drm_framebuffer *fb, *tfb;
2386
2387 mutex_lock(&dev->mode_config.mutex);
2388 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2389 list_del(&fb->filp_head);
2390 fb->funcs->destroy(fb);
2391 }
2392 mutex_unlock(&dev->mode_config.mutex);
2393}
2394
2395/**
2396 * drm_mode_attachmode - add a mode to the user mode list
2397 * @dev: DRM device
2398 * @connector: connector to add the mode to
2399 * @mode: mode to add
2400 *
2401 * Add @mode to @connector's user mode list.
2402 */
2403static int drm_mode_attachmode(struct drm_device *dev,
2404 struct drm_connector *connector,
2405 struct drm_display_mode *mode)
2406{
2407 int ret = 0;
2408
2409 list_add_tail(&mode->head, &connector->user_modes);
2410 return ret;
2411}
2412
2413int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2414 struct drm_display_mode *mode)
2415{
2416 struct drm_connector *connector;
2417 int ret = 0;
2418 struct drm_display_mode *dup_mode;
2419 int need_dup = 0;
2420 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2421 if (!connector->encoder)
2422 break;
2423 if (connector->encoder->crtc == crtc) {
2424 if (need_dup)
2425 dup_mode = drm_mode_duplicate(dev, mode);
2426 else
2427 dup_mode = mode;
2428 ret = drm_mode_attachmode(dev, connector, dup_mode);
2429 if (ret)
2430 return ret;
2431 need_dup = 1;
2432 }
2433 }
2434 return 0;
2435}
2436EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2437
2438static int drm_mode_detachmode(struct drm_device *dev,
2439 struct drm_connector *connector,
2440 struct drm_display_mode *mode)
2441{
2442 int found = 0;
2443 int ret = 0;
2444 struct drm_display_mode *match_mode, *t;
2445
2446 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2447 if (drm_mode_equal(match_mode, mode)) {
2448 list_del(&match_mode->head);
2449 drm_mode_destroy(dev, match_mode);
2450 found = 1;
2451 break;
2452 }
2453 }
2454
2455 if (!found)
2456 ret = -EINVAL;
2457
2458 return ret;
2459}
2460
2461int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2462{
2463 struct drm_connector *connector;
2464
2465 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2466 drm_mode_detachmode(dev, connector, mode);
2467 }
2468 return 0;
2469}
2470EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2471
2472/**
2473 * drm_fb_attachmode - Attach a user mode to an connector
2474 * @inode: inode from the ioctl
2475 * @filp: file * from the ioctl
2476 * @cmd: cmd from ioctl
2477 * @arg: arg from ioctl
2478 *
2479 * This attaches a user specified mode to an connector.
2480 * Called by the user via ioctl.
2481 *
2482 * RETURNS:
2483 * Zero on success, errno on failure.
2484 */
2485int drm_mode_attachmode_ioctl(struct drm_device *dev,
2486 void *data, struct drm_file *file_priv)
2487{
2488 struct drm_mode_mode_cmd *mode_cmd = data;
2489 struct drm_connector *connector;
2490 struct drm_display_mode *mode;
2491 struct drm_mode_object *obj;
2492 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2493 int ret = 0;
2494
fb3b06c8
DA		 2495 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2496 return -EINVAL;
2497
f453ba04
DA		 2498 mutex_lock(&dev->mode_config.mutex);
2499
2500 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2501 if (!obj) {
2502 ret = -EINVAL;
2503 goto out;
2504 }
2505 connector = obj_to_connector(obj);
2506
2507 mode = drm_mode_create(dev);
2508 if (!mode) {
2509 ret = -ENOMEM;
2510 goto out;
2511 }
2512
2513 drm_crtc_convert_umode(mode, umode);
2514
2515 ret = drm_mode_attachmode(dev, connector, mode);
2516out:
2517 mutex_unlock(&dev->mode_config.mutex);
2518 return ret;
2519}
2520
2521
2522/**
2523 * drm_fb_detachmode - Detach a user specified mode from an connector
2524 * @inode: inode from the ioctl
2525 * @filp: file * from the ioctl
2526 * @cmd: cmd from ioctl
2527 * @arg: arg from ioctl
2528 *
2529 * Called by the user via ioctl.
2530 *
2531 * RETURNS:
2532 * Zero on success, errno on failure.
2533 */
2534int drm_mode_detachmode_ioctl(struct drm_device *dev,
2535 void *data, struct drm_file *file_priv)
2536{
2537 struct drm_mode_object *obj;
2538 struct drm_mode_mode_cmd *mode_cmd = data;
2539 struct drm_connector *connector;
2540 struct drm_display_mode mode;
2541 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2542 int ret = 0;
2543
fb3b06c8
DA		 2544 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2545 return -EINVAL;
2546
f453ba04
DA		 2547 mutex_lock(&dev->mode_config.mutex);
2548
2549 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2550 if (!obj) {
2551 ret = -EINVAL;
2552 goto out;
2553 }
2554 connector = obj_to_connector(obj);
2555
2556 drm_crtc_convert_umode(&mode, umode);
2557 ret = drm_mode_detachmode(dev, connector, &mode);
2558out:
2559 mutex_unlock(&dev->mode_config.mutex);
2560 return ret;
2561}
2562
2563struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2564 const char *name, int num_values)
2565{
2566 struct drm_property *property = NULL;
2567
2568 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2569 if (!property)
2570 return NULL;
2571
2572 if (num_values) {
2573 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2574 if (!property->values)
2575 goto fail;
2576 }
2577
2578 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2579 property->flags = flags;
2580 property->num_values = num_values;
2581 INIT_LIST_HEAD(&property->enum_blob_list);
2582
471dd2ef 2583 if (name) {
f453ba04 2584 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2585 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2586 }
f453ba04
DA		 2587
2588 list_add_tail(&property->head, &dev->mode_config.property_list);
2589 return property;
2590fail:
2591 kfree(property);
2592 return NULL;
2593}
2594EXPORT_SYMBOL(drm_property_create);
2595
4a67d391
SH		 2596struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2597 const char *name,
2598 const struct drm_prop_enum_list *props,
2599 int num_values)
2600{
2601 struct drm_property *property;
2602 int i, ret;
2603
2604 flags |= DRM_MODE_PROP_ENUM;
2605
2606 property = drm_property_create(dev, flags, name, num_values);
2607 if (!property)
2608 return NULL;
2609
2610 for (i = 0; i < num_values; i++) {
2611 ret = drm_property_add_enum(property, i,
2612 props[i].type,
2613 props[i].name);
2614 if (ret) {
2615 drm_property_destroy(dev, property);
2616 return NULL;
2617 }
2618 }
2619
2620 return property;
2621}
2622EXPORT_SYMBOL(drm_property_create_enum);
2623
f453ba04
DA		 2624int drm_property_add_enum(struct drm_property *property, int index,
2625 uint64_t value, const char *name)
2626{
2627 struct drm_property_enum *prop_enum;
2628
2629 if (!(property->flags & DRM_MODE_PROP_ENUM))
2630 return -EINVAL;
2631
2632 if (!list_empty(&property->enum_blob_list)) {
2633 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2634 if (prop_enum->value == value) {
2635 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2636 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2637 return 0;
2638 }
2639 }
2640 }
2641
2642 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2643 if (!prop_enum)
2644 return -ENOMEM;
2645
2646 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2647 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2648 prop_enum->value = value;
2649
2650 property->values[index] = value;
2651 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2652 return 0;
2653}
2654EXPORT_SYMBOL(drm_property_add_enum);
2655
2656void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2657{
2658 struct drm_property_enum *prop_enum, *pt;
2659
2660 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2661 list_del(&prop_enum->head);
2662 kfree(prop_enum);
2663 }
2664
2665 if (property->num_values)
2666 kfree(property->values);
2667 drm_mode_object_put(dev, &property->base);
2668 list_del(&property->head);
2669 kfree(property);
2670}
2671EXPORT_SYMBOL(drm_property_destroy);
2672
2673int drm_connector_attach_property(struct drm_connector *connector,
2674 struct drm_property *property, uint64_t init_val)
2675{
2676 int i;
2677
2678 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2679 if (connector->property_ids[i] == 0) {
2680 connector->property_ids[i] = property->base.id;
2681 connector->property_values[i] = init_val;
2682 break;
2683 }
2684 }
2685
2686 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2687 return -EINVAL;
2688 return 0;
2689}
2690EXPORT_SYMBOL(drm_connector_attach_property);
2691
2692int drm_connector_property_set_value(struct drm_connector *connector,
2693 struct drm_property *property, uint64_t value)
2694{
2695 int i;
2696
2697 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2698 if (connector->property_ids[i] == property->base.id) {
2699 connector->property_values[i] = value;
2700 break;
2701 }
2702 }
2703
2704 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2705 return -EINVAL;
2706 return 0;
2707}
2708EXPORT_SYMBOL(drm_connector_property_set_value);
2709
2710int drm_connector_property_get_value(struct drm_connector *connector,
2711 struct drm_property *property, uint64_t *val)
2712{
2713 int i;
2714
2715 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2716 if (connector->property_ids[i] == property->base.id) {
2717 *val = connector->property_values[i];
2718 break;
2719 }
2720 }
2721
2722 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2723 return -EINVAL;
2724 return 0;
2725}
2726EXPORT_SYMBOL(drm_connector_property_get_value);
2727
2728int drm_mode_getproperty_ioctl(struct drm_device *dev,
2729 void *data, struct drm_file *file_priv)
2730{
2731 struct drm_mode_object *obj;
2732 struct drm_mode_get_property *out_resp = data;
2733 struct drm_property *property;
2734 int enum_count = 0;
2735 int blob_count = 0;
2736 int value_count = 0;
2737 int ret = 0, i;
2738 int copied;
2739 struct drm_property_enum *prop_enum;
2740 struct drm_mode_property_enum __user *enum_ptr;
2741 struct drm_property_blob *prop_blob;
81f6c7f8 2742 uint32_t __user *blob_id_ptr;
f453ba04
DA		 2743 uint64_t __user *values_ptr;
2744 uint32_t __user *blob_length_ptr;
2745
fb3b06c8
DA		 2746 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2747 return -EINVAL;
2748
f453ba04
DA		 2749 mutex_lock(&dev->mode_config.mutex);
2750 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2751 if (!obj) {
2752 ret = -EINVAL;
2753 goto done;
2754 }
2755 property = obj_to_property(obj);
2756
2757 if (property->flags & DRM_MODE_PROP_ENUM) {
2758 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2759 enum_count++;
2760 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2761 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2762 blob_count++;
2763 }
2764
2765 value_count = property->num_values;
2766
2767 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2768 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2769 out_resp->flags = property->flags;
2770
2771 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 2772 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 2773 for (i = 0; i < value_count; i++) {
2774 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2775 ret = -EFAULT;
2776 goto done;
2777 }
2778 }
2779 }
2780 out_resp->count_values = value_count;
2781
2782 if (property->flags & DRM_MODE_PROP_ENUM) {
2783 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2784 copied = 0;
81f6c7f8 2785 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 2786 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2787
2788 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2789 ret = -EFAULT;
2790 goto done;
2791 }
2792
2793 if (copy_to_user(&enum_ptr[copied].name,
2794 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2795 ret = -EFAULT;
2796 goto done;
2797 }
2798 copied++;
2799 }
2800 }
2801 out_resp->count_enum_blobs = enum_count;
2802 }
2803
2804 if (property->flags & DRM_MODE_PROP_BLOB) {
2805 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2806 copied = 0;
81f6c7f8
VS		 2807 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2808 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 2809
2810 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2811 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2812 ret = -EFAULT;
2813 goto done;
2814 }
2815
2816 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2817 ret = -EFAULT;
2818 goto done;
2819 }
2820
2821 copied++;
2822 }
2823 }
2824 out_resp->count_enum_blobs = blob_count;
2825 }
2826done:
2827 mutex_unlock(&dev->mode_config.mutex);
2828 return ret;
2829}
2830
2831static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2832 void *data)
2833{
2834 struct drm_property_blob *blob;
2835
2836 if (!length || !data)
2837 return NULL;
2838
2839 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2840 if (!blob)
2841 return NULL;
2842
2843 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2844 blob->length = length;
2845
2846 memcpy(blob->data, data, length);
2847
2848 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2849
2850 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2851 return blob;
2852}
2853
2854static void drm_property_destroy_blob(struct drm_device *dev,
2855 struct drm_property_blob *blob)
2856{
2857 drm_mode_object_put(dev, &blob->base);
2858 list_del(&blob->head);
2859 kfree(blob);
2860}
2861
2862int drm_mode_getblob_ioctl(struct drm_device *dev,
2863 void *data, struct drm_file *file_priv)
2864{
2865 struct drm_mode_object *obj;
2866 struct drm_mode_get_blob *out_resp = data;
2867 struct drm_property_blob *blob;
2868 int ret = 0;
81f6c7f8 2869 void __user *blob_ptr;
f453ba04 2870
fb3b06c8
DA		 2871 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2872 return -EINVAL;
2873
f453ba04
DA		 2874 mutex_lock(&dev->mode_config.mutex);
2875 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2876 if (!obj) {
2877 ret = -EINVAL;
2878 goto done;
2879 }
2880 blob = obj_to_blob(obj);
2881
2882 if (out_resp->length == blob->length) {
81f6c7f8 2883 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 2884 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2885 ret = -EFAULT;
2886 goto done;
2887 }
2888 }
2889 out_resp->length = blob->length;
2890
2891done:
2892 mutex_unlock(&dev->mode_config.mutex);
2893 return ret;
2894}
2895
2896int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2897 struct edid *edid)
2898{
2899 struct drm_device *dev = connector->dev;
7466f4cc 2900 int ret = 0, size;
f453ba04
DA		 2901
2902 if (connector->edid_blob_ptr)
2903 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2904
2905 /* Delete edid, when there is none. */
2906 if (!edid) {
2907 connector->edid_blob_ptr = NULL;
2908 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2909 return ret;
2910 }
2911
7466f4cc
AJ		 2912 size = EDID_LENGTH * (1 + edid->extensions);
2913 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2914 size, edid);
f453ba04
DA		 2915
2916 ret = drm_connector_property_set_value(connector,
2917 dev->mode_config.edid_property,
2918 connector->edid_blob_ptr->base.id);
2919
2920 return ret;
2921}
2922EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2923
2924int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2925 void *data, struct drm_file *file_priv)
2926{
2927 struct drm_mode_connector_set_property *out_resp = data;
2928 struct drm_mode_object *obj;
2929 struct drm_property *property;
2930 struct drm_connector *connector;
2931 int ret = -EINVAL;
2932 int i;
2933
fb3b06c8
DA		 2934 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2935 return -EINVAL;
2936
f453ba04
DA		 2937 mutex_lock(&dev->mode_config.mutex);
2938
2939 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2940 if (!obj) {
2941 goto out;
2942 }
2943 connector = obj_to_connector(obj);
2944
2945 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2946 if (connector->property_ids[i] == out_resp->prop_id)
2947 break;
2948 }
2949
2950 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2951 goto out;
2952 }
2953
2954 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2955 if (!obj) {
2956 goto out;
2957 }
2958 property = obj_to_property(obj);
2959
2960 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2961 goto out;
2962
2963 if (property->flags & DRM_MODE_PROP_RANGE) {
2964 if (out_resp->value < property->values[0])
2965 goto out;
2966
2967 if (out_resp->value > property->values[1])
2968 goto out;
2969 } else {
2970 int found = 0;
2971 for (i = 0; i < property->num_values; i++) {
2972 if (property->values[i] == out_resp->value) {
2973 found = 1;
2974 break;
2975 }
2976 }
2977 if (!found) {
2978 goto out;
2979 }
2980 }
2981
c9fb15f6
KP		 2982 /* Do DPMS ourselves */
2983 if (property == connector->dev->mode_config.dpms_property) {
2984 if (connector->funcs->dpms)
2985 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2986 ret = 0;
2987 } else if (connector->funcs->set_property)
f453ba04
DA		 2988 ret = connector->funcs->set_property(connector, property, out_resp->value);
2989
af901ca1 2990 /* store the property value if successful */
f453ba04
DA		 2991 if (!ret)
2992 drm_connector_property_set_value(connector, property, out_resp->value);
2993out:
2994 mutex_unlock(&dev->mode_config.mutex);
2995 return ret;
2996}
2997
f453ba04
DA		 2998int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2999 struct drm_encoder *encoder)
3000{
3001 int i;
3002
3003 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3004 if (connector->encoder_ids[i] == 0) {
3005 connector->encoder_ids[i] = encoder->base.id;
3006 return 0;
3007 }
3008 }
3009 return -ENOMEM;
3010}
3011EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3012
3013void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3014 struct drm_encoder *encoder)
3015{
3016 int i;
3017 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3018 if (connector->encoder_ids[i] == encoder->base.id) {
3019 connector->encoder_ids[i] = 0;
3020 if (connector->encoder == encoder)
3021 connector->encoder = NULL;
3022 break;
3023 }
3024 }
3025}
3026EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3027
4cae5b84 3028int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3029 int gamma_size)
3030{
3031 crtc->gamma_size = gamma_size;
3032
3033 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3034 if (!crtc->gamma_store) {
3035 crtc->gamma_size = 0;
4cae5b84 3036 return -ENOMEM;
f453ba04
DA		 3037 }
3038
4cae5b84 3039 return 0;
f453ba04
DA		 3040}
3041EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3042
3043int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3044 void *data, struct drm_file *file_priv)
3045{
3046 struct drm_mode_crtc_lut *crtc_lut = data;
3047 struct drm_mode_object *obj;
3048 struct drm_crtc *crtc;
3049 void *r_base, *g_base, *b_base;
3050 int size;
3051 int ret = 0;
3052
fb3b06c8
DA		 3053 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3054 return -EINVAL;
3055
f453ba04
DA		 3056 mutex_lock(&dev->mode_config.mutex);
3057 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3058 if (!obj) {
3059 ret = -EINVAL;
3060 goto out;
3061 }
3062 crtc = obj_to_crtc(obj);
3063
3064 /* memcpy into gamma store */
3065 if (crtc_lut->gamma_size != crtc->gamma_size) {
3066 ret = -EINVAL;
3067 goto out;
3068 }
3069
3070 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3071 r_base = crtc->gamma_store;
3072 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3073 ret = -EFAULT;
3074 goto out;
3075 }
3076
3077 g_base = r_base + size;
3078 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3079 ret = -EFAULT;
3080 goto out;
3081 }
3082
3083 b_base = g_base + size;
3084 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3085 ret = -EFAULT;
3086 goto out;
3087 }
3088
7203425a 3089 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3090
3091out:
3092 mutex_unlock(&dev->mode_config.mutex);
3093 return ret;
3094
3095}
3096
3097int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3098 void *data, struct drm_file *file_priv)
3099{
3100 struct drm_mode_crtc_lut *crtc_lut = data;
3101 struct drm_mode_object *obj;
3102 struct drm_crtc *crtc;
3103 void *r_base, *g_base, *b_base;
3104 int size;
3105 int ret = 0;
3106
fb3b06c8
DA		 3107 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3108 return -EINVAL;
3109
f453ba04
DA		 3110 mutex_lock(&dev->mode_config.mutex);
3111 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3112 if (!obj) {
3113 ret = -EINVAL;
3114 goto out;
3115 }
3116 crtc = obj_to_crtc(obj);
3117
3118 /* memcpy into gamma store */
3119 if (crtc_lut->gamma_size != crtc->gamma_size) {
3120 ret = -EINVAL;
3121 goto out;
3122 }
3123
3124 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3125 r_base = crtc->gamma_store;
3126 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3127 ret = -EFAULT;
3128 goto out;
3129 }
3130
3131 g_base = r_base + size;
3132 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3133 ret = -EFAULT;
3134 goto out;
3135 }
3136
3137 b_base = g_base + size;
3138 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3139 ret = -EFAULT;
3140 goto out;
3141 }
3142out:
3143 mutex_unlock(&dev->mode_config.mutex);
3144 return ret;
3145}
d91d8a3f
KH		 3146
3147int drm_mode_page_flip_ioctl(struct drm_device *dev,
3148 void *data, struct drm_file *file_priv)
3149{
3150 struct drm_mode_crtc_page_flip *page_flip = data;
3151 struct drm_mode_object *obj;
3152 struct drm_crtc *crtc;
3153 struct drm_framebuffer *fb;
3154 struct drm_pending_vblank_event *e = NULL;
3155 unsigned long flags;
3156 int ret = -EINVAL;
3157
3158 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3159 page_flip->reserved != 0)
3160 return -EINVAL;
3161
3162 mutex_lock(&dev->mode_config.mutex);
3163 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3164 if (!obj)
3165 goto out;
3166 crtc = obj_to_crtc(obj);
3167
90c1efdd
CW		 3168 if (crtc->fb == NULL) {
3169 /* The framebuffer is currently unbound, presumably
3170 * due to a hotplug event, that userspace has not
3171 * yet discovered.
3172 */
3173 ret = -EBUSY;
3174 goto out;
3175 }
3176
d91d8a3f
KH		 3177 if (crtc->funcs->page_flip == NULL)
3178 goto out;
3179
3180 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3181 if (!obj)
3182 goto out;
3183 fb = obj_to_fb(obj);
3184
3185 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3186 ret = -ENOMEM;
3187 spin_lock_irqsave(&dev->event_lock, flags);
3188 if (file_priv->event_space < sizeof e->event) {
3189 spin_unlock_irqrestore(&dev->event_lock, flags);
3190 goto out;
3191 }
3192 file_priv->event_space -= sizeof e->event;
3193 spin_unlock_irqrestore(&dev->event_lock, flags);
3194
3195 e = kzalloc(sizeof *e, GFP_KERNEL);
3196 if (e == NULL) {
3197 spin_lock_irqsave(&dev->event_lock, flags);
3198 file_priv->event_space += sizeof e->event;
3199 spin_unlock_irqrestore(&dev->event_lock, flags);
3200 goto out;
3201 }
3202
7bd4d7be 3203 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3204 e->event.base.length = sizeof e->event;
3205 e->event.user_data = page_flip->user_data;
3206 e->base.event = &e->event.base;
3207 e->base.file_priv = file_priv;
3208 e->base.destroy =
3209 (void (*) (struct drm_pending_event *)) kfree;
3210 }
3211
3212 ret = crtc->funcs->page_flip(crtc, fb, e);
3213 if (ret) {
3214 spin_lock_irqsave(&dev->event_lock, flags);
3215 file_priv->event_space += sizeof e->event;
3216 spin_unlock_irqrestore(&dev->event_lock, flags);
3217 kfree(e);
3218 }
3219
3220out:
3221 mutex_unlock(&dev->mode_config.mutex);
3222 return ret;
3223}
eb033556
CW		 3224
3225void drm_mode_config_reset(struct drm_device *dev)
3226{
3227 struct drm_crtc *crtc;
3228 struct drm_encoder *encoder;
3229 struct drm_connector *connector;
3230
3231 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3232 if (crtc->funcs->reset)
3233 crtc->funcs->reset(crtc);
3234
3235 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3236 if (encoder->funcs->reset)
3237 encoder->funcs->reset(encoder);
3238
3239 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3240 if (connector->funcs->reset)
3241 connector->funcs->reset(connector);
3242}
3243EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3244
3245int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3246 void *data, struct drm_file *file_priv)
3247{
3248 struct drm_mode_create_dumb *args = data;
3249
3250 if (!dev->driver->dumb_create)
3251 return -ENOSYS;
3252 return dev->driver->dumb_create(file_priv, dev, args);
3253}
3254
3255int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3256 void *data, struct drm_file *file_priv)
3257{
3258 struct drm_mode_map_dumb *args = data;
3259
3260 /* call driver ioctl to get mmap offset */
3261 if (!dev->driver->dumb_map_offset)
3262 return -ENOSYS;
3263
3264 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3265}
3266
3267int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3268 void *data, struct drm_file *file_priv)
3269{
3270 struct drm_mode_destroy_dumb *args = data;
3271
3272 if (!dev->driver->dumb_destroy)
3273 return -ENOSYS;
3274
3275 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3276}
248dbc23
DA		 3277
3278/*
3279 * Just need to support RGB formats here for compat with code that doesn't
3280 * use pixel formats directly yet.
3281 */
3282void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3283 int *bpp)
3284{
3285 switch (format) {
04b3924d
VS		 3286 case DRM_FORMAT_RGB332:
3287 case DRM_FORMAT_BGR233:
248dbc23
DA		 3288 *depth = 8;
3289 *bpp = 8;
3290 break;
04b3924d
VS		 3291 case DRM_FORMAT_XRGB1555:
3292 case DRM_FORMAT_XBGR1555:
3293 case DRM_FORMAT_RGBX5551:
3294 case DRM_FORMAT_BGRX5551:
3295 case DRM_FORMAT_ARGB1555:
3296 case DRM_FORMAT_ABGR1555:
3297 case DRM_FORMAT_RGBA5551:
3298 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3299 *depth = 15;
3300 *bpp = 16;
3301 break;
04b3924d
VS		 3302 case DRM_FORMAT_RGB565:
3303 case DRM_FORMAT_BGR565:
248dbc23
DA		 3304 *depth = 16;
3305 *bpp = 16;
3306 break;
04b3924d
VS		 3307 case DRM_FORMAT_RGB888:
3308 case DRM_FORMAT_BGR888:
3309 *depth = 24;
3310 *bpp = 24;
3311 break;
3312 case DRM_FORMAT_XRGB8888:
3313 case DRM_FORMAT_XBGR8888:
3314 case DRM_FORMAT_RGBX8888:
3315 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3316 *depth = 24;
3317 *bpp = 32;
3318 break;
04b3924d
VS		 3319 case DRM_FORMAT_XRGB2101010:
3320 case DRM_FORMAT_XBGR2101010:
3321 case DRM_FORMAT_RGBX1010102:
3322 case DRM_FORMAT_BGRX1010102:
3323 case DRM_FORMAT_ARGB2101010:
3324 case DRM_FORMAT_ABGR2101010:
3325 case DRM_FORMAT_RGBA1010102:
3326 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3327 *depth = 30;
3328 *bpp = 32;
3329 break;
04b3924d
VS		 3330 case DRM_FORMAT_ARGB8888:
3331 case DRM_FORMAT_ABGR8888:
3332 case DRM_FORMAT_RGBA8888:
3333 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3334 *depth = 32;
3335 *bpp = 32;
3336 break;
3337 default:
3338 DRM_DEBUG_KMS("unsupported pixel format\n");
3339 *depth = 0;
3340 *bpp = 0;
3341 break;
3342 }
3343}
3344EXPORT_SYMBOL(drm_fb_get_bpp_depth);
Linux 6.x block layer and io_uring tree(s)