Commit | Line | Data |
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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 | ||
0500c04e SR |
23 | #include <linux/uaccess.h> |
24 | ||
25 | #include <drm/drm_drv.h> | |
9338203c | 26 | #include <drm/drm_encoder.h> |
0500c04e | 27 | #include <drm/drm_file.h> |
720cf96d | 28 | #include <drm/drm_framebuffer.h> |
c3b790ea | 29 | #include <drm/drm_managed.h> |
28575f16 | 30 | #include <drm/drm_mode_config.h> |
0500c04e | 31 | #include <drm/drm_print.h> |
2c51419e | 32 | #include <linux/dma-resv.h> |
28575f16 DV |
33 | |
34 | #include "drm_crtc_internal.h" | |
35 | #include "drm_internal.h" | |
36 | ||
37 | int drm_modeset_register_all(struct drm_device *dev) | |
38 | { | |
39 | int ret; | |
40 | ||
41 | ret = drm_plane_register_all(dev); | |
42 | if (ret) | |
43 | goto err_plane; | |
44 | ||
45 | ret = drm_crtc_register_all(dev); | |
46 | if (ret) | |
47 | goto err_crtc; | |
48 | ||
49 | ret = drm_encoder_register_all(dev); | |
50 | if (ret) | |
51 | goto err_encoder; | |
52 | ||
53 | ret = drm_connector_register_all(dev); | |
54 | if (ret) | |
55 | goto err_connector; | |
56 | ||
57 | return 0; | |
58 | ||
59 | err_connector: | |
60 | drm_encoder_unregister_all(dev); | |
61 | err_encoder: | |
62 | drm_crtc_unregister_all(dev); | |
63 | err_crtc: | |
64 | drm_plane_unregister_all(dev); | |
65 | err_plane: | |
66 | return ret; | |
67 | } | |
68 | ||
69 | void drm_modeset_unregister_all(struct drm_device *dev) | |
70 | { | |
71 | drm_connector_unregister_all(dev); | |
72 | drm_encoder_unregister_all(dev); | |
73 | drm_crtc_unregister_all(dev); | |
74 | drm_plane_unregister_all(dev); | |
75 | } | |
76 | ||
77 | /** | |
78 | * drm_mode_getresources - get graphics configuration | |
79 | * @dev: drm device for the ioctl | |
80 | * @data: data pointer for the ioctl | |
81 | * @file_priv: drm file for the ioctl call | |
82 | * | |
83 | * Construct a set of configuration description structures and return | |
84 | * them to the user, including CRTC, connector and framebuffer configuration. | |
85 | * | |
86 | * Called by the user via ioctl. | |
87 | * | |
88 | * Returns: | |
89 | * Zero on success, negative errno on failure. | |
90 | */ | |
91 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
92 | struct drm_file *file_priv) | |
93 | { | |
94 | struct drm_mode_card_res *card_res = data; | |
28575f16 DV |
95 | struct drm_framebuffer *fb; |
96 | struct drm_connector *connector; | |
97 | struct drm_crtc *crtc; | |
98 | struct drm_encoder *encoder; | |
697cc9c8 | 99 | int count, ret = 0; |
28575f16 DV |
100 | uint32_t __user *fb_id; |
101 | uint32_t __user *crtc_id; | |
102 | uint32_t __user *connector_id; | |
103 | uint32_t __user *encoder_id; | |
613051da | 104 | struct drm_connector_list_iter conn_iter; |
28575f16 DV |
105 | |
106 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
69fdf420 | 107 | return -EOPNOTSUPP; |
28575f16 DV |
108 | |
109 | mutex_lock(&file_priv->fbs_lock); | |
697cc9c8 DV |
110 | count = 0; |
111 | fb_id = u64_to_user_ptr(card_res->fb_id_ptr); | |
112 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
113 | if (count < card_res->count_fbs && | |
114 | put_user(fb->base.id, fb_id + count)) { | |
115 | mutex_unlock(&file_priv->fbs_lock); | |
116 | return -EFAULT; | |
28575f16 | 117 | } |
697cc9c8 | 118 | count++; |
28575f16 | 119 | } |
697cc9c8 | 120 | card_res->count_fbs = count; |
28575f16 DV |
121 | mutex_unlock(&file_priv->fbs_lock); |
122 | ||
28575f16 DV |
123 | card_res->max_height = dev->mode_config.max_height; |
124 | card_res->min_height = dev->mode_config.min_height; | |
125 | card_res->max_width = dev->mode_config.max_width; | |
126 | card_res->min_width = dev->mode_config.min_width; | |
127 | ||
697cc9c8 DV |
128 | count = 0; |
129 | crtc_id = u64_to_user_ptr(card_res->crtc_id_ptr); | |
130 | drm_for_each_crtc(crtc, dev) { | |
7de440db KP |
131 | if (drm_lease_held(file_priv, crtc->base.id)) { |
132 | if (count < card_res->count_crtcs && | |
133 | put_user(crtc->base.id, crtc_id + count)) | |
134 | return -EFAULT; | |
135 | count++; | |
136 | } | |
28575f16 | 137 | } |
697cc9c8 DV |
138 | card_res->count_crtcs = count; |
139 | ||
140 | count = 0; | |
141 | encoder_id = u64_to_user_ptr(card_res->encoder_id_ptr); | |
142 | drm_for_each_encoder(encoder, dev) { | |
143 | if (count < card_res->count_encoders && | |
613051da DV |
144 | put_user(encoder->base.id, encoder_id + count)) |
145 | return -EFAULT; | |
697cc9c8 | 146 | count++; |
28575f16 | 147 | } |
697cc9c8 DV |
148 | card_res->count_encoders = count; |
149 | ||
b982dab1 | 150 | drm_connector_list_iter_begin(dev, &conn_iter); |
697cc9c8 DV |
151 | count = 0; |
152 | connector_id = u64_to_user_ptr(card_res->connector_id_ptr); | |
613051da | 153 | drm_for_each_connector_iter(connector, &conn_iter) { |
d67b6a20 LD |
154 | /* only expose writeback connectors if userspace understands them */ |
155 | if (!file_priv->writeback_connectors && | |
156 | (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)) | |
157 | continue; | |
158 | ||
7de440db KP |
159 | if (drm_lease_held(file_priv, connector->base.id)) { |
160 | if (count < card_res->count_connectors && | |
161 | put_user(connector->base.id, connector_id + count)) { | |
162 | drm_connector_list_iter_end(&conn_iter); | |
163 | return -EFAULT; | |
164 | } | |
165 | count++; | |
28575f16 DV |
166 | } |
167 | } | |
697cc9c8 | 168 | card_res->count_connectors = count; |
b982dab1 | 169 | drm_connector_list_iter_end(&conn_iter); |
28575f16 | 170 | |
28575f16 DV |
171 | return ret; |
172 | } | |
173 | ||
174 | /** | |
175 | * drm_mode_config_reset - call ->reset callbacks | |
176 | * @dev: drm device | |
177 | * | |
178 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
179 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
180 | * reset hardware and software state. | |
181 | */ | |
182 | void drm_mode_config_reset(struct drm_device *dev) | |
183 | { | |
184 | struct drm_crtc *crtc; | |
185 | struct drm_plane *plane; | |
186 | struct drm_encoder *encoder; | |
187 | struct drm_connector *connector; | |
613051da | 188 | struct drm_connector_list_iter conn_iter; |
28575f16 DV |
189 | |
190 | drm_for_each_plane(plane, dev) | |
191 | if (plane->funcs->reset) | |
192 | plane->funcs->reset(plane); | |
193 | ||
194 | drm_for_each_crtc(crtc, dev) | |
195 | if (crtc->funcs->reset) | |
196 | crtc->funcs->reset(crtc); | |
197 | ||
198 | drm_for_each_encoder(encoder, dev) | |
f35a2a99 | 199 | if (encoder->funcs && encoder->funcs->reset) |
28575f16 DV |
200 | encoder->funcs->reset(encoder); |
201 | ||
b982dab1 | 202 | drm_connector_list_iter_begin(dev, &conn_iter); |
613051da | 203 | drm_for_each_connector_iter(connector, &conn_iter) |
28575f16 DV |
204 | if (connector->funcs->reset) |
205 | connector->funcs->reset(connector); | |
b982dab1 | 206 | drm_connector_list_iter_end(&conn_iter); |
28575f16 DV |
207 | } |
208 | EXPORT_SYMBOL(drm_mode_config_reset); | |
209 | ||
210 | /* | |
211 | * Global properties | |
212 | */ | |
213 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { | |
214 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
215 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
216 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
217 | }; | |
218 | ||
219 | static int drm_mode_create_standard_properties(struct drm_device *dev) | |
220 | { | |
221 | struct drm_property *prop; | |
222 | int ret; | |
223 | ||
224 | ret = drm_connector_create_standard_properties(dev); | |
225 | if (ret) | |
226 | return ret; | |
227 | ||
228 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
229 | "type", drm_plane_type_enum_list, | |
230 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
231 | if (!prop) | |
232 | return -ENOMEM; | |
233 | dev->mode_config.plane_type_property = prop; | |
234 | ||
235 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
236 | "SRC_X", 0, UINT_MAX); | |
237 | if (!prop) | |
238 | return -ENOMEM; | |
239 | dev->mode_config.prop_src_x = prop; | |
240 | ||
241 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
242 | "SRC_Y", 0, UINT_MAX); | |
243 | if (!prop) | |
244 | return -ENOMEM; | |
245 | dev->mode_config.prop_src_y = prop; | |
246 | ||
247 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
248 | "SRC_W", 0, UINT_MAX); | |
249 | if (!prop) | |
250 | return -ENOMEM; | |
251 | dev->mode_config.prop_src_w = prop; | |
252 | ||
253 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
254 | "SRC_H", 0, UINT_MAX); | |
255 | if (!prop) | |
256 | return -ENOMEM; | |
257 | dev->mode_config.prop_src_h = prop; | |
258 | ||
259 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
260 | "CRTC_X", INT_MIN, INT_MAX); | |
261 | if (!prop) | |
262 | return -ENOMEM; | |
263 | dev->mode_config.prop_crtc_x = prop; | |
264 | ||
265 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
266 | "CRTC_Y", INT_MIN, INT_MAX); | |
267 | if (!prop) | |
268 | return -ENOMEM; | |
269 | dev->mode_config.prop_crtc_y = prop; | |
270 | ||
271 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
272 | "CRTC_W", 0, INT_MAX); | |
273 | if (!prop) | |
274 | return -ENOMEM; | |
275 | dev->mode_config.prop_crtc_w = prop; | |
276 | ||
277 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
278 | "CRTC_H", 0, INT_MAX); | |
279 | if (!prop) | |
280 | return -ENOMEM; | |
281 | dev->mode_config.prop_crtc_h = prop; | |
282 | ||
283 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
284 | "FB_ID", DRM_MODE_OBJECT_FB); | |
285 | if (!prop) | |
286 | return -ENOMEM; | |
287 | dev->mode_config.prop_fb_id = prop; | |
288 | ||
96260142 GP |
289 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
290 | "IN_FENCE_FD", -1, INT_MAX); | |
291 | if (!prop) | |
292 | return -ENOMEM; | |
293 | dev->mode_config.prop_in_fence_fd = prop; | |
294 | ||
beaf5af4 GP |
295 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
296 | "OUT_FENCE_PTR", 0, U64_MAX); | |
297 | if (!prop) | |
298 | return -ENOMEM; | |
299 | dev->mode_config.prop_out_fence_ptr = prop; | |
300 | ||
28575f16 DV |
301 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
302 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
303 | if (!prop) | |
304 | return -ENOMEM; | |
305 | dev->mode_config.prop_crtc_id = prop; | |
306 | ||
c8f00568 DR |
307 | prop = drm_property_create(dev, |
308 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
309 | "FB_DAMAGE_CLIPS", 0); | |
d3b21767 LS |
310 | if (!prop) |
311 | return -ENOMEM; | |
312 | dev->mode_config.prop_fb_damage_clips = prop; | |
313 | ||
28575f16 DV |
314 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
315 | "ACTIVE"); | |
316 | if (!prop) | |
317 | return -ENOMEM; | |
318 | dev->mode_config.prop_active = prop; | |
319 | ||
320 | prop = drm_property_create(dev, | |
321 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
322 | "MODE_ID", 0); | |
323 | if (!prop) | |
324 | return -ENOMEM; | |
325 | dev->mode_config.prop_mode_id = prop; | |
326 | ||
1398958c NK |
327 | prop = drm_property_create_bool(dev, 0, |
328 | "VRR_ENABLED"); | |
329 | if (!prop) | |
330 | return -ENOMEM; | |
331 | dev->mode_config.prop_vrr_enabled = prop; | |
332 | ||
28575f16 DV |
333 | prop = drm_property_create(dev, |
334 | DRM_MODE_PROP_BLOB, | |
335 | "DEGAMMA_LUT", 0); | |
336 | if (!prop) | |
337 | return -ENOMEM; | |
338 | dev->mode_config.degamma_lut_property = prop; | |
339 | ||
340 | prop = drm_property_create_range(dev, | |
341 | DRM_MODE_PROP_IMMUTABLE, | |
342 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
343 | if (!prop) | |
344 | return -ENOMEM; | |
345 | dev->mode_config.degamma_lut_size_property = prop; | |
346 | ||
347 | prop = drm_property_create(dev, | |
348 | DRM_MODE_PROP_BLOB, | |
349 | "CTM", 0); | |
350 | if (!prop) | |
351 | return -ENOMEM; | |
352 | dev->mode_config.ctm_property = prop; | |
353 | ||
354 | prop = drm_property_create(dev, | |
355 | DRM_MODE_PROP_BLOB, | |
356 | "GAMMA_LUT", 0); | |
357 | if (!prop) | |
358 | return -ENOMEM; | |
359 | dev->mode_config.gamma_lut_property = prop; | |
360 | ||
361 | prop = drm_property_create_range(dev, | |
362 | DRM_MODE_PROP_IMMUTABLE, | |
363 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
364 | if (!prop) | |
365 | return -ENOMEM; | |
366 | dev->mode_config.gamma_lut_size_property = prop; | |
367 | ||
db1689aa BW |
368 | prop = drm_property_create(dev, |
369 | DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_BLOB, | |
370 | "IN_FORMATS", 0); | |
371 | if (!prop) | |
372 | return -ENOMEM; | |
373 | dev->mode_config.modifiers_property = prop; | |
374 | ||
28575f16 DV |
375 | return 0; |
376 | } | |
377 | ||
c3b790ea DV |
378 | static void drm_mode_config_init_release(struct drm_device *dev, void *ptr) |
379 | { | |
380 | drm_mode_config_cleanup(dev); | |
381 | } | |
382 | ||
28575f16 | 383 | /** |
c3b790ea DV |
384 | * drmm_mode_config_init - managed DRM mode_configuration structure |
385 | * initialization | |
28575f16 DV |
386 | * @dev: DRM device |
387 | * | |
388 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
389 | * configuration of @dev. | |
390 | * | |
391 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
392 | * problem, since this should happen single threaded at init time. It is the | |
393 | * driver's problem to ensure this guarantee. | |
394 | * | |
c3b790ea DV |
395 | * Cleanup is automatically handled through registering drm_mode_config_cleanup |
396 | * with drmm_add_action(). | |
397 | * | |
398 | * Returns: 0 on success, negative error value on failure. | |
28575f16 | 399 | */ |
c3b790ea | 400 | int drmm_mode_config_init(struct drm_device *dev) |
28575f16 DV |
401 | { |
402 | mutex_init(&dev->mode_config.mutex); | |
403 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); | |
404 | mutex_init(&dev->mode_config.idr_mutex); | |
405 | mutex_init(&dev->mode_config.fb_lock); | |
406 | mutex_init(&dev->mode_config.blob_lock); | |
407 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
408 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
409 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
410 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
411 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
412 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
413 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
b962a120 | 414 | INIT_LIST_HEAD(&dev->mode_config.privobj_list); |
b5f06893 | 415 | idr_init(&dev->mode_config.object_idr); |
28575f16 DV |
416 | idr_init(&dev->mode_config.tile_idr); |
417 | ida_init(&dev->mode_config.connector_ida); | |
613051da | 418 | spin_lock_init(&dev->mode_config.connector_list_lock); |
28575f16 | 419 | |
ea497bb9 DV |
420 | init_llist_head(&dev->mode_config.connector_free_list); |
421 | INIT_WORK(&dev->mode_config.connector_free_work, drm_connector_free_work_fn); | |
422 | ||
28575f16 | 423 | drm_mode_create_standard_properties(dev); |
28575f16 DV |
424 | |
425 | /* Just to be sure */ | |
426 | dev->mode_config.num_fb = 0; | |
427 | dev->mode_config.num_connector = 0; | |
428 | dev->mode_config.num_crtc = 0; | |
429 | dev->mode_config.num_encoder = 0; | |
28575f16 | 430 | dev->mode_config.num_total_plane = 0; |
2c51419e DV |
431 | |
432 | if (IS_ENABLED(CONFIG_LOCKDEP)) { | |
433 | struct drm_modeset_acquire_ctx modeset_ctx; | |
434 | struct ww_acquire_ctx resv_ctx; | |
435 | struct dma_resv resv; | |
436 | int ret; | |
437 | ||
438 | dma_resv_init(&resv); | |
439 | ||
440 | drm_modeset_acquire_init(&modeset_ctx, 0); | |
441 | ret = drm_modeset_lock(&dev->mode_config.connection_mutex, | |
442 | &modeset_ctx); | |
443 | if (ret == -EDEADLK) | |
444 | ret = drm_modeset_backoff(&modeset_ctx); | |
445 | ||
446 | ww_acquire_init(&resv_ctx, &reservation_ww_class); | |
447 | ret = dma_resv_lock(&resv, &resv_ctx); | |
448 | if (ret == -EDEADLK) | |
449 | dma_resv_lock_slow(&resv, &resv_ctx); | |
450 | ||
451 | dma_resv_unlock(&resv); | |
452 | ww_acquire_fini(&resv_ctx); | |
453 | ||
454 | drm_modeset_drop_locks(&modeset_ctx); | |
455 | drm_modeset_acquire_fini(&modeset_ctx); | |
456 | dma_resv_fini(&resv); | |
457 | } | |
c3b790ea DV |
458 | |
459 | return drmm_add_action_or_reset(dev, drm_mode_config_init_release, | |
460 | NULL); | |
28575f16 | 461 | } |
c3b790ea | 462 | EXPORT_SYMBOL(drmm_mode_config_init); |
28575f16 DV |
463 | |
464 | /** | |
465 | * drm_mode_config_cleanup - free up DRM mode_config info | |
466 | * @dev: DRM device | |
467 | * | |
468 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
469 | * free up the framebuffers and associated buffer objects. | |
470 | * | |
471 | * Note that since this /should/ happen single-threaded at driver/device | |
472 | * teardown time, no locking is required. It's the driver's job to ensure that | |
473 | * this guarantee actually holds true. | |
c3b790ea DV |
474 | * |
475 | * FIXME: With the managed drmm_mode_config_init() it is no longer necessary for | |
476 | * drivers to explicitly call this function. | |
28575f16 DV |
477 | */ |
478 | void drm_mode_config_cleanup(struct drm_device *dev) | |
479 | { | |
2ab8c5f8 DV |
480 | struct drm_connector *connector; |
481 | struct drm_connector_list_iter conn_iter; | |
28575f16 DV |
482 | struct drm_crtc *crtc, *ct; |
483 | struct drm_encoder *encoder, *enct; | |
484 | struct drm_framebuffer *fb, *fbt; | |
485 | struct drm_property *property, *pt; | |
486 | struct drm_property_blob *blob, *bt; | |
487 | struct drm_plane *plane, *plt; | |
488 | ||
489 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
490 | head) { | |
491 | encoder->funcs->destroy(encoder); | |
492 | } | |
493 | ||
b982dab1 | 494 | drm_connector_list_iter_begin(dev, &conn_iter); |
2ab8c5f8 DV |
495 | drm_for_each_connector_iter(connector, &conn_iter) { |
496 | /* drm_connector_list_iter holds an full reference to the | |
497 | * current connector itself, which means it is inherently safe | |
498 | * against unreferencing the current connector - but not against | |
499 | * deleting it right away. */ | |
ad093607 | 500 | drm_connector_put(connector); |
28575f16 | 501 | } |
b982dab1 | 502 | drm_connector_list_iter_end(&conn_iter); |
a703c550 | 503 | /* connector_iter drops references in a work item. */ |
ea497bb9 | 504 | flush_work(&dev->mode_config.connector_free_work); |
d352f352 | 505 | if (WARN_ON(!list_empty(&dev->mode_config.connector_list))) { |
b982dab1 | 506 | drm_connector_list_iter_begin(dev, &conn_iter); |
d352f352 CW |
507 | drm_for_each_connector_iter(connector, &conn_iter) |
508 | DRM_ERROR("connector %s leaked!\n", connector->name); | |
b982dab1 | 509 | drm_connector_list_iter_end(&conn_iter); |
d352f352 | 510 | } |
28575f16 DV |
511 | |
512 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
513 | head) { | |
514 | drm_property_destroy(dev, property); | |
515 | } | |
516 | ||
517 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
518 | head) { | |
519 | plane->funcs->destroy(plane); | |
520 | } | |
521 | ||
522 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
523 | crtc->funcs->destroy(crtc); | |
524 | } | |
525 | ||
526 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
527 | head_global) { | |
6472e509 | 528 | drm_property_blob_put(blob); |
28575f16 DV |
529 | } |
530 | ||
531 | /* | |
532 | * Single-threaded teardown context, so it's not required to grab the | |
533 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
534 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
535 | * | |
536 | * Also, if there are any framebuffers left, that's a driver leak now, | |
537 | * so politely WARN about this. | |
538 | */ | |
539 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
540 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
2aa0fcc2 | 541 | struct drm_printer p = drm_debug_printer("[leaked fb]"); |
948de842 | 542 | |
2aa0fcc2 DV |
543 | drm_printf(&p, "framebuffer[%u]:\n", fb->base.id); |
544 | drm_framebuffer_print_info(&p, 1, fb); | |
28575f16 DV |
545 | drm_framebuffer_free(&fb->base.refcount); |
546 | } | |
547 | ||
548 | ida_destroy(&dev->mode_config.connector_ida); | |
549 | idr_destroy(&dev->mode_config.tile_idr); | |
b5f06893 | 550 | idr_destroy(&dev->mode_config.object_idr); |
28575f16 DV |
551 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
552 | } | |
553 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
71427795 | 554 | |
74d2aacb VS |
555 | static u32 full_encoder_mask(struct drm_device *dev) |
556 | { | |
557 | struct drm_encoder *encoder; | |
558 | u32 encoder_mask = 0; | |
559 | ||
560 | drm_for_each_encoder(encoder, dev) | |
561 | encoder_mask |= drm_encoder_mask(encoder); | |
562 | ||
563 | return encoder_mask; | |
564 | } | |
565 | ||
71427795 VS |
566 | /* |
567 | * For some reason we want the encoder itself included in | |
568 | * possible_clones. Make life easy for drivers by allowing them | |
569 | * to leave possible_clones unset if no cloning is possible. | |
570 | */ | |
571 | static void fixup_encoder_possible_clones(struct drm_encoder *encoder) | |
572 | { | |
573 | if (encoder->possible_clones == 0) | |
574 | encoder->possible_clones = drm_encoder_mask(encoder); | |
575 | } | |
576 | ||
74d2aacb VS |
577 | static void validate_encoder_possible_clones(struct drm_encoder *encoder) |
578 | { | |
579 | struct drm_device *dev = encoder->dev; | |
580 | u32 encoder_mask = full_encoder_mask(dev); | |
581 | struct drm_encoder *other; | |
582 | ||
583 | drm_for_each_encoder(other, dev) { | |
584 | WARN(!!(encoder->possible_clones & drm_encoder_mask(other)) != | |
585 | !!(other->possible_clones & drm_encoder_mask(encoder)), | |
586 | "possible_clones mismatch: " | |
587 | "[ENCODER:%d:%s] mask=0x%x possible_clones=0x%x vs. " | |
588 | "[ENCODER:%d:%s] mask=0x%x possible_clones=0x%x\n", | |
589 | encoder->base.id, encoder->name, | |
590 | drm_encoder_mask(encoder), encoder->possible_clones, | |
591 | other->base.id, other->name, | |
592 | drm_encoder_mask(other), other->possible_clones); | |
593 | } | |
594 | ||
595 | WARN((encoder->possible_clones & drm_encoder_mask(encoder)) == 0 || | |
596 | (encoder->possible_clones & ~encoder_mask) != 0, | |
597 | "Bogus possible_clones: " | |
598 | "[ENCODER:%d:%s] possible_clones=0x%x (full encoder mask=0x%x)\n", | |
599 | encoder->base.id, encoder->name, | |
600 | encoder->possible_clones, encoder_mask); | |
601 | } | |
602 | ||
0df10823 VS |
603 | static u32 full_crtc_mask(struct drm_device *dev) |
604 | { | |
605 | struct drm_crtc *crtc; | |
606 | u32 crtc_mask = 0; | |
607 | ||
608 | drm_for_each_crtc(crtc, dev) | |
609 | crtc_mask |= drm_crtc_mask(crtc); | |
610 | ||
611 | return crtc_mask; | |
612 | } | |
613 | ||
614 | static void validate_encoder_possible_crtcs(struct drm_encoder *encoder) | |
615 | { | |
616 | u32 crtc_mask = full_crtc_mask(encoder->dev); | |
617 | ||
618 | WARN((encoder->possible_crtcs & crtc_mask) == 0 || | |
619 | (encoder->possible_crtcs & ~crtc_mask) != 0, | |
620 | "Bogus possible_crtcs: " | |
621 | "[ENCODER:%d:%s] possible_crtcs=0x%x (full crtc mask=0x%x)\n", | |
622 | encoder->base.id, encoder->name, | |
623 | encoder->possible_crtcs, crtc_mask); | |
624 | } | |
625 | ||
71427795 VS |
626 | void drm_mode_config_validate(struct drm_device *dev) |
627 | { | |
628 | struct drm_encoder *encoder; | |
6d84576f | 629 | struct drm_crtc *crtc; |
96962e3d SS |
630 | struct drm_plane *plane; |
631 | u32 primary_with_crtc = 0, cursor_with_crtc = 0; | |
632 | unsigned int num_primary = 0; | |
71427795 | 633 | |
b684822a VS |
634 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
635 | return; | |
636 | ||
71427795 VS |
637 | drm_for_each_encoder(encoder, dev) |
638 | fixup_encoder_possible_clones(encoder); | |
74d2aacb | 639 | |
0df10823 | 640 | drm_for_each_encoder(encoder, dev) { |
74d2aacb | 641 | validate_encoder_possible_clones(encoder); |
0df10823 VS |
642 | validate_encoder_possible_crtcs(encoder); |
643 | } | |
6d84576f SS |
644 | |
645 | drm_for_each_crtc(crtc, dev) { | |
2200736a SS |
646 | WARN(!crtc->primary, "Missing primary plane on [CRTC:%d:%s]\n", |
647 | crtc->base.id, crtc->name); | |
648 | ||
9a011053 SS |
649 | WARN(crtc->cursor && crtc->funcs->cursor_set, |
650 | "[CRTC:%d:%s] must not have both a cursor plane and a cursor_set func", | |
651 | crtc->base.id, crtc->name); | |
652 | WARN(crtc->cursor && crtc->funcs->cursor_set2, | |
653 | "[CRTC:%d:%s] must not have both a cursor plane and a cursor_set2 func", | |
654 | crtc->base.id, crtc->name); | |
655 | WARN(crtc->cursor && crtc->funcs->cursor_move, | |
656 | "[CRTC:%d:%s] must not have both a cursor plane and a cursor_move func", | |
657 | crtc->base.id, crtc->name); | |
658 | ||
6d84576f SS |
659 | if (crtc->primary) { |
660 | WARN(!(crtc->primary->possible_crtcs & drm_crtc_mask(crtc)), | |
661 | "Bogus primary plane possible_crtcs: [PLANE:%d:%s] must be compatible with [CRTC:%d:%s]\n", | |
662 | crtc->primary->base.id, crtc->primary->name, | |
663 | crtc->base.id, crtc->name); | |
96962e3d SS |
664 | WARN(primary_with_crtc & drm_plane_mask(crtc->primary), |
665 | "Primary plane [PLANE:%d:%s] used for multiple CRTCs", | |
666 | crtc->primary->base.id, crtc->primary->name); | |
667 | primary_with_crtc |= drm_plane_mask(crtc->primary); | |
6d84576f SS |
668 | } |
669 | if (crtc->cursor) { | |
670 | WARN(!(crtc->cursor->possible_crtcs & drm_crtc_mask(crtc)), | |
671 | "Bogus cursor plane possible_crtcs: [PLANE:%d:%s] must be compatible with [CRTC:%d:%s]\n", | |
672 | crtc->cursor->base.id, crtc->cursor->name, | |
673 | crtc->base.id, crtc->name); | |
96962e3d SS |
674 | WARN(cursor_with_crtc & drm_plane_mask(crtc->cursor), |
675 | "Cursor plane [PLANE:%d:%s] used for multiple CRTCs", | |
676 | crtc->cursor->base.id, crtc->cursor->name); | |
677 | cursor_with_crtc |= drm_plane_mask(crtc->cursor); | |
6d84576f SS |
678 | } |
679 | } | |
96962e3d SS |
680 | |
681 | drm_for_each_plane(plane, dev) { | |
682 | if (plane->type == DRM_PLANE_TYPE_PRIMARY) | |
683 | num_primary++; | |
684 | } | |
685 | ||
686 | WARN(num_primary != dev->mode_config.num_crtc, | |
687 | "Must have as many primary planes as there are CRTCs, but have %u primary planes and %u CRTCs", | |
688 | num_primary, dev->mode_config.num_crtc); | |
71427795 | 689 | } |