]>
Commit | Line | Data |
---|---|---|
28575f16 DV |
1 | /* |
2 | * Copyright (c) 2016 Intel Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, distribute, and sell this software and its | |
5 | * documentation for any purpose is hereby granted without fee, provided that | |
6 | * the above copyright notice appear in all copies and that both that copyright | |
7 | * notice and this permission notice appear in supporting documentation, and | |
8 | * that the name of the copyright holders not be used in advertising or | |
9 | * publicity pertaining to distribution of the software without specific, | |
10 | * written prior permission. The copyright holders make no representations | |
11 | * about the suitability of this software for any purpose. It is provided "as | |
12 | * is" without express or implied warranty. | |
13 | * | |
14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
20 | * OF THIS SOFTWARE. | |
21 | */ | |
22 | ||
9338203c | 23 | #include <drm/drm_encoder.h> |
28575f16 DV |
24 | #include <drm/drm_mode_config.h> |
25 | #include <drm/drmP.h> | |
26 | ||
27 | #include "drm_crtc_internal.h" | |
28 | #include "drm_internal.h" | |
29 | ||
30 | int drm_modeset_register_all(struct drm_device *dev) | |
31 | { | |
32 | int ret; | |
33 | ||
34 | ret = drm_plane_register_all(dev); | |
35 | if (ret) | |
36 | goto err_plane; | |
37 | ||
38 | ret = drm_crtc_register_all(dev); | |
39 | if (ret) | |
40 | goto err_crtc; | |
41 | ||
42 | ret = drm_encoder_register_all(dev); | |
43 | if (ret) | |
44 | goto err_encoder; | |
45 | ||
46 | ret = drm_connector_register_all(dev); | |
47 | if (ret) | |
48 | goto err_connector; | |
49 | ||
50 | return 0; | |
51 | ||
52 | err_connector: | |
53 | drm_encoder_unregister_all(dev); | |
54 | err_encoder: | |
55 | drm_crtc_unregister_all(dev); | |
56 | err_crtc: | |
57 | drm_plane_unregister_all(dev); | |
58 | err_plane: | |
59 | return ret; | |
60 | } | |
61 | ||
62 | void drm_modeset_unregister_all(struct drm_device *dev) | |
63 | { | |
64 | drm_connector_unregister_all(dev); | |
65 | drm_encoder_unregister_all(dev); | |
66 | drm_crtc_unregister_all(dev); | |
67 | drm_plane_unregister_all(dev); | |
68 | } | |
69 | ||
70 | /** | |
71 | * drm_mode_getresources - get graphics configuration | |
72 | * @dev: drm device for the ioctl | |
73 | * @data: data pointer for the ioctl | |
74 | * @file_priv: drm file for the ioctl call | |
75 | * | |
76 | * Construct a set of configuration description structures and return | |
77 | * them to the user, including CRTC, connector and framebuffer configuration. | |
78 | * | |
79 | * Called by the user via ioctl. | |
80 | * | |
81 | * Returns: | |
82 | * Zero on success, negative errno on failure. | |
83 | */ | |
84 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
85 | struct drm_file *file_priv) | |
86 | { | |
87 | struct drm_mode_card_res *card_res = data; | |
28575f16 DV |
88 | struct drm_framebuffer *fb; |
89 | struct drm_connector *connector; | |
90 | struct drm_crtc *crtc; | |
91 | struct drm_encoder *encoder; | |
697cc9c8 | 92 | int count, ret = 0; |
28575f16 DV |
93 | uint32_t __user *fb_id; |
94 | uint32_t __user *crtc_id; | |
95 | uint32_t __user *connector_id; | |
96 | uint32_t __user *encoder_id; | |
613051da | 97 | struct drm_connector_list_iter conn_iter; |
28575f16 DV |
98 | |
99 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
100 | return -EINVAL; | |
101 | ||
102 | ||
103 | mutex_lock(&file_priv->fbs_lock); | |
697cc9c8 DV |
104 | count = 0; |
105 | fb_id = u64_to_user_ptr(card_res->fb_id_ptr); | |
106 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
107 | if (count < card_res->count_fbs && | |
108 | put_user(fb->base.id, fb_id + count)) { | |
109 | mutex_unlock(&file_priv->fbs_lock); | |
110 | return -EFAULT; | |
28575f16 | 111 | } |
697cc9c8 | 112 | count++; |
28575f16 | 113 | } |
697cc9c8 | 114 | card_res->count_fbs = count; |
28575f16 DV |
115 | mutex_unlock(&file_priv->fbs_lock); |
116 | ||
28575f16 DV |
117 | card_res->max_height = dev->mode_config.max_height; |
118 | card_res->min_height = dev->mode_config.min_height; | |
119 | card_res->max_width = dev->mode_config.max_width; | |
120 | card_res->min_width = dev->mode_config.min_width; | |
121 | ||
697cc9c8 DV |
122 | count = 0; |
123 | crtc_id = u64_to_user_ptr(card_res->crtc_id_ptr); | |
124 | drm_for_each_crtc(crtc, dev) { | |
7de440db KP |
125 | if (drm_lease_held(file_priv, crtc->base.id)) { |
126 | if (count < card_res->count_crtcs && | |
127 | put_user(crtc->base.id, crtc_id + count)) | |
128 | return -EFAULT; | |
129 | count++; | |
130 | } | |
28575f16 | 131 | } |
697cc9c8 DV |
132 | card_res->count_crtcs = count; |
133 | ||
134 | count = 0; | |
135 | encoder_id = u64_to_user_ptr(card_res->encoder_id_ptr); | |
136 | drm_for_each_encoder(encoder, dev) { | |
137 | if (count < card_res->count_encoders && | |
613051da DV |
138 | put_user(encoder->base.id, encoder_id + count)) |
139 | return -EFAULT; | |
697cc9c8 | 140 | count++; |
28575f16 | 141 | } |
697cc9c8 DV |
142 | card_res->count_encoders = count; |
143 | ||
b982dab1 | 144 | drm_connector_list_iter_begin(dev, &conn_iter); |
697cc9c8 DV |
145 | count = 0; |
146 | connector_id = u64_to_user_ptr(card_res->connector_id_ptr); | |
613051da | 147 | drm_for_each_connector_iter(connector, &conn_iter) { |
7de440db KP |
148 | if (drm_lease_held(file_priv, connector->base.id)) { |
149 | if (count < card_res->count_connectors && | |
150 | put_user(connector->base.id, connector_id + count)) { | |
151 | drm_connector_list_iter_end(&conn_iter); | |
152 | return -EFAULT; | |
153 | } | |
154 | count++; | |
28575f16 DV |
155 | } |
156 | } | |
697cc9c8 | 157 | card_res->count_connectors = count; |
b982dab1 | 158 | drm_connector_list_iter_end(&conn_iter); |
28575f16 | 159 | |
28575f16 DV |
160 | return ret; |
161 | } | |
162 | ||
163 | /** | |
164 | * drm_mode_config_reset - call ->reset callbacks | |
165 | * @dev: drm device | |
166 | * | |
167 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
168 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
169 | * reset hardware and software state. | |
170 | */ | |
171 | void drm_mode_config_reset(struct drm_device *dev) | |
172 | { | |
173 | struct drm_crtc *crtc; | |
174 | struct drm_plane *plane; | |
175 | struct drm_encoder *encoder; | |
176 | struct drm_connector *connector; | |
613051da | 177 | struct drm_connector_list_iter conn_iter; |
28575f16 DV |
178 | |
179 | drm_for_each_plane(plane, dev) | |
180 | if (plane->funcs->reset) | |
181 | plane->funcs->reset(plane); | |
182 | ||
183 | drm_for_each_crtc(crtc, dev) | |
184 | if (crtc->funcs->reset) | |
185 | crtc->funcs->reset(crtc); | |
186 | ||
187 | drm_for_each_encoder(encoder, dev) | |
188 | if (encoder->funcs->reset) | |
189 | encoder->funcs->reset(encoder); | |
190 | ||
b982dab1 | 191 | drm_connector_list_iter_begin(dev, &conn_iter); |
613051da | 192 | drm_for_each_connector_iter(connector, &conn_iter) |
28575f16 DV |
193 | if (connector->funcs->reset) |
194 | connector->funcs->reset(connector); | |
b982dab1 | 195 | drm_connector_list_iter_end(&conn_iter); |
28575f16 DV |
196 | } |
197 | EXPORT_SYMBOL(drm_mode_config_reset); | |
198 | ||
199 | /* | |
200 | * Global properties | |
201 | */ | |
202 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { | |
203 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
204 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
205 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
206 | }; | |
207 | ||
208 | static int drm_mode_create_standard_properties(struct drm_device *dev) | |
209 | { | |
210 | struct drm_property *prop; | |
211 | int ret; | |
212 | ||
213 | ret = drm_connector_create_standard_properties(dev); | |
214 | if (ret) | |
215 | return ret; | |
216 | ||
217 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
218 | "type", drm_plane_type_enum_list, | |
219 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
220 | if (!prop) | |
221 | return -ENOMEM; | |
222 | dev->mode_config.plane_type_property = prop; | |
223 | ||
224 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
225 | "SRC_X", 0, UINT_MAX); | |
226 | if (!prop) | |
227 | return -ENOMEM; | |
228 | dev->mode_config.prop_src_x = prop; | |
229 | ||
230 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
231 | "SRC_Y", 0, UINT_MAX); | |
232 | if (!prop) | |
233 | return -ENOMEM; | |
234 | dev->mode_config.prop_src_y = prop; | |
235 | ||
236 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
237 | "SRC_W", 0, UINT_MAX); | |
238 | if (!prop) | |
239 | return -ENOMEM; | |
240 | dev->mode_config.prop_src_w = prop; | |
241 | ||
242 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
243 | "SRC_H", 0, UINT_MAX); | |
244 | if (!prop) | |
245 | return -ENOMEM; | |
246 | dev->mode_config.prop_src_h = prop; | |
247 | ||
248 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
249 | "CRTC_X", INT_MIN, INT_MAX); | |
250 | if (!prop) | |
251 | return -ENOMEM; | |
252 | dev->mode_config.prop_crtc_x = prop; | |
253 | ||
254 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
255 | "CRTC_Y", INT_MIN, INT_MAX); | |
256 | if (!prop) | |
257 | return -ENOMEM; | |
258 | dev->mode_config.prop_crtc_y = prop; | |
259 | ||
260 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
261 | "CRTC_W", 0, INT_MAX); | |
262 | if (!prop) | |
263 | return -ENOMEM; | |
264 | dev->mode_config.prop_crtc_w = prop; | |
265 | ||
266 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
267 | "CRTC_H", 0, INT_MAX); | |
268 | if (!prop) | |
269 | return -ENOMEM; | |
270 | dev->mode_config.prop_crtc_h = prop; | |
271 | ||
272 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
273 | "FB_ID", DRM_MODE_OBJECT_FB); | |
274 | if (!prop) | |
275 | return -ENOMEM; | |
276 | dev->mode_config.prop_fb_id = prop; | |
277 | ||
96260142 GP |
278 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
279 | "IN_FENCE_FD", -1, INT_MAX); | |
280 | if (!prop) | |
281 | return -ENOMEM; | |
282 | dev->mode_config.prop_in_fence_fd = prop; | |
283 | ||
beaf5af4 GP |
284 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
285 | "OUT_FENCE_PTR", 0, U64_MAX); | |
286 | if (!prop) | |
287 | return -ENOMEM; | |
288 | dev->mode_config.prop_out_fence_ptr = prop; | |
289 | ||
28575f16 DV |
290 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
291 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
292 | if (!prop) | |
293 | return -ENOMEM; | |
294 | dev->mode_config.prop_crtc_id = prop; | |
295 | ||
296 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, | |
297 | "ACTIVE"); | |
298 | if (!prop) | |
299 | return -ENOMEM; | |
300 | dev->mode_config.prop_active = prop; | |
301 | ||
302 | prop = drm_property_create(dev, | |
303 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
304 | "MODE_ID", 0); | |
305 | if (!prop) | |
306 | return -ENOMEM; | |
307 | dev->mode_config.prop_mode_id = prop; | |
308 | ||
309 | prop = drm_property_create(dev, | |
310 | DRM_MODE_PROP_BLOB, | |
311 | "DEGAMMA_LUT", 0); | |
312 | if (!prop) | |
313 | return -ENOMEM; | |
314 | dev->mode_config.degamma_lut_property = prop; | |
315 | ||
316 | prop = drm_property_create_range(dev, | |
317 | DRM_MODE_PROP_IMMUTABLE, | |
318 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
319 | if (!prop) | |
320 | return -ENOMEM; | |
321 | dev->mode_config.degamma_lut_size_property = prop; | |
322 | ||
323 | prop = drm_property_create(dev, | |
324 | DRM_MODE_PROP_BLOB, | |
325 | "CTM", 0); | |
326 | if (!prop) | |
327 | return -ENOMEM; | |
328 | dev->mode_config.ctm_property = prop; | |
329 | ||
330 | prop = drm_property_create(dev, | |
331 | DRM_MODE_PROP_BLOB, | |
332 | "GAMMA_LUT", 0); | |
333 | if (!prop) | |
334 | return -ENOMEM; | |
335 | dev->mode_config.gamma_lut_property = prop; | |
336 | ||
337 | prop = drm_property_create_range(dev, | |
338 | DRM_MODE_PROP_IMMUTABLE, | |
339 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
340 | if (!prop) | |
341 | return -ENOMEM; | |
342 | dev->mode_config.gamma_lut_size_property = prop; | |
343 | ||
db1689aa BW |
344 | prop = drm_property_create(dev, |
345 | DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB, | |
346 | "IN_FORMATS", 0); | |
347 | if (!prop) | |
348 | return -ENOMEM; | |
349 | dev->mode_config.modifiers_property = prop; | |
350 | ||
28575f16 DV |
351 | return 0; |
352 | } | |
353 | ||
354 | /** | |
355 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
356 | * @dev: DRM device | |
357 | * | |
358 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
359 | * configuration of @dev. | |
360 | * | |
361 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
362 | * problem, since this should happen single threaded at init time. It is the | |
363 | * driver's problem to ensure this guarantee. | |
364 | * | |
365 | */ | |
366 | void drm_mode_config_init(struct drm_device *dev) | |
367 | { | |
368 | mutex_init(&dev->mode_config.mutex); | |
369 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); | |
370 | mutex_init(&dev->mode_config.idr_mutex); | |
371 | mutex_init(&dev->mode_config.fb_lock); | |
372 | mutex_init(&dev->mode_config.blob_lock); | |
373 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
374 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
375 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
376 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
377 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
378 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
379 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
380 | idr_init(&dev->mode_config.crtc_idr); | |
381 | idr_init(&dev->mode_config.tile_idr); | |
382 | ida_init(&dev->mode_config.connector_ida); | |
613051da | 383 | spin_lock_init(&dev->mode_config.connector_list_lock); |
28575f16 | 384 | |
ea497bb9 DV |
385 | init_llist_head(&dev->mode_config.connector_free_list); |
386 | INIT_WORK(&dev->mode_config.connector_free_work, drm_connector_free_work_fn); | |
387 | ||
28575f16 | 388 | drm_mode_create_standard_properties(dev); |
28575f16 DV |
389 | |
390 | /* Just to be sure */ | |
391 | dev->mode_config.num_fb = 0; | |
392 | dev->mode_config.num_connector = 0; | |
393 | dev->mode_config.num_crtc = 0; | |
394 | dev->mode_config.num_encoder = 0; | |
28575f16 DV |
395 | dev->mode_config.num_total_plane = 0; |
396 | } | |
397 | EXPORT_SYMBOL(drm_mode_config_init); | |
398 | ||
399 | /** | |
400 | * drm_mode_config_cleanup - free up DRM mode_config info | |
401 | * @dev: DRM device | |
402 | * | |
403 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
404 | * free up the framebuffers and associated buffer objects. | |
405 | * | |
406 | * Note that since this /should/ happen single-threaded at driver/device | |
407 | * teardown time, no locking is required. It's the driver's job to ensure that | |
408 | * this guarantee actually holds true. | |
409 | * | |
410 | * FIXME: cleanup any dangling user buffer objects too | |
411 | */ | |
412 | void drm_mode_config_cleanup(struct drm_device *dev) | |
413 | { | |
2ab8c5f8 DV |
414 | struct drm_connector *connector; |
415 | struct drm_connector_list_iter conn_iter; | |
28575f16 DV |
416 | struct drm_crtc *crtc, *ct; |
417 | struct drm_encoder *encoder, *enct; | |
418 | struct drm_framebuffer *fb, *fbt; | |
419 | struct drm_property *property, *pt; | |
420 | struct drm_property_blob *blob, *bt; | |
421 | struct drm_plane *plane, *plt; | |
422 | ||
423 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
424 | head) { | |
425 | encoder->funcs->destroy(encoder); | |
426 | } | |
427 | ||
b982dab1 | 428 | drm_connector_list_iter_begin(dev, &conn_iter); |
2ab8c5f8 DV |
429 | drm_for_each_connector_iter(connector, &conn_iter) { |
430 | /* drm_connector_list_iter holds an full reference to the | |
431 | * current connector itself, which means it is inherently safe | |
432 | * against unreferencing the current connector - but not against | |
433 | * deleting it right away. */ | |
ad093607 | 434 | drm_connector_put(connector); |
28575f16 | 435 | } |
b982dab1 | 436 | drm_connector_list_iter_end(&conn_iter); |
a703c550 | 437 | /* connector_iter drops references in a work item. */ |
ea497bb9 | 438 | flush_work(&dev->mode_config.connector_free_work); |
d352f352 | 439 | if (WARN_ON(!list_empty(&dev->mode_config.connector_list))) { |
b982dab1 | 440 | drm_connector_list_iter_begin(dev, &conn_iter); |
d352f352 CW |
441 | drm_for_each_connector_iter(connector, &conn_iter) |
442 | DRM_ERROR("connector %s leaked!\n", connector->name); | |
b982dab1 | 443 | drm_connector_list_iter_end(&conn_iter); |
d352f352 | 444 | } |
28575f16 DV |
445 | |
446 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
447 | head) { | |
448 | drm_property_destroy(dev, property); | |
449 | } | |
450 | ||
451 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
452 | head) { | |
453 | plane->funcs->destroy(plane); | |
454 | } | |
455 | ||
456 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
457 | crtc->funcs->destroy(crtc); | |
458 | } | |
459 | ||
460 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
461 | head_global) { | |
6472e509 | 462 | drm_property_blob_put(blob); |
28575f16 DV |
463 | } |
464 | ||
465 | /* | |
466 | * Single-threaded teardown context, so it's not required to grab the | |
467 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
468 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
469 | * | |
470 | * Also, if there are any framebuffers left, that's a driver leak now, | |
471 | * so politely WARN about this. | |
472 | */ | |
473 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
474 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
475 | drm_framebuffer_free(&fb->base.refcount); | |
476 | } | |
477 | ||
478 | ida_destroy(&dev->mode_config.connector_ida); | |
479 | idr_destroy(&dev->mode_config.tile_idr); | |
480 | idr_destroy(&dev->mode_config.crtc_idr); | |
481 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); | |
482 | } | |
483 | EXPORT_SYMBOL(drm_mode_config_cleanup); |