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cc4ceb48 DV |
1 | /* |
2 | * Copyright (C) 2014 Red Hat | |
3 | * Copyright (C) 2014 Intel Corp. | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
21 | * OTHER DEALINGS IN THE SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Rob Clark <robdclark@gmail.com> | |
25 | * Daniel Vetter <daniel.vetter@ffwll.ch> | |
26 | */ | |
27 | ||
28 | #ifndef DRM_ATOMIC_H_ | |
29 | #define DRM_ATOMIC_H_ | |
30 | ||
37cc0148 TR |
31 | #include <drm/drm_crtc.h> |
32 | ||
43968d7b DV |
33 | /** |
34 | * struct drm_crtc_commit - track modeset commits on a CRTC | |
35 | * | |
36 | * This structure is used to track pending modeset changes and atomic commit on | |
37 | * a per-CRTC basis. Since updating the list should never block this structure | |
38 | * is reference counted to allow waiters to safely wait on an event to complete, | |
39 | * without holding any locks. | |
40 | * | |
41 | * It has 3 different events in total to allow a fine-grained synchronization | |
42 | * between outstanding updates:: | |
43 | * | |
44 | * atomic commit thread hardware | |
45 | * | |
46 | * write new state into hardware ----> ... | |
47 | * signal hw_done | |
48 | * switch to new state on next | |
49 | * ... v/hblank | |
50 | * | |
51 | * wait for buffers to show up ... | |
52 | * | |
53 | * ... send completion irq | |
54 | * irq handler signals flip_done | |
55 | * cleanup old buffers | |
56 | * | |
57 | * signal cleanup_done | |
58 | * | |
59 | * wait for flip_done <---- | |
60 | * clean up atomic state | |
61 | * | |
62 | * The important bit to know is that cleanup_done is the terminal event, but the | |
63 | * ordering between flip_done and hw_done is entirely up to the specific driver | |
64 | * and modeset state change. | |
65 | * | |
66 | * For an implementation of how to use this look at | |
67 | * drm_atomic_helper_setup_commit() from the atomic helper library. | |
68 | */ | |
69 | struct drm_crtc_commit { | |
70 | /** | |
71 | * @crtc: | |
72 | * | |
73 | * DRM CRTC for this commit. | |
74 | */ | |
75 | struct drm_crtc *crtc; | |
76 | ||
77 | /** | |
78 | * @ref: | |
79 | * | |
80 | * Reference count for this structure. Needed to allow blocking on | |
81 | * completions without the risk of the completion disappearing | |
82 | * meanwhile. | |
83 | */ | |
84 | struct kref ref; | |
85 | ||
86 | /** | |
87 | * @flip_done: | |
88 | * | |
89 | * Will be signaled when the hardware has flipped to the new set of | |
90 | * buffers. Signals at the same time as when the drm event for this | |
91 | * commit is sent to userspace, or when an out-fence is singalled. Note | |
92 | * that for most hardware, in most cases this happens after @hw_done is | |
93 | * signalled. | |
94 | */ | |
95 | struct completion flip_done; | |
96 | ||
97 | /** | |
98 | * @hw_done: | |
99 | * | |
100 | * Will be signalled when all hw register changes for this commit have | |
101 | * been written out. Especially when disabling a pipe this can be much | |
102 | * later than than @flip_done, since that can signal already when the | |
103 | * screen goes black, whereas to fully shut down a pipe more register | |
104 | * I/O is required. | |
105 | * | |
106 | * Note that this does not need to include separately reference-counted | |
107 | * resources like backing storage buffer pinning, or runtime pm | |
108 | * management. | |
109 | */ | |
110 | struct completion hw_done; | |
111 | ||
112 | /** | |
113 | * @cleanup_done: | |
114 | * | |
115 | * Will be signalled after old buffers have been cleaned up by calling | |
116 | * drm_atomic_helper_cleanup_planes(). Since this can only happen after | |
117 | * a vblank wait completed it might be a bit later. This completion is | |
118 | * useful to throttle updates and avoid hardware updates getting ahead | |
119 | * of the buffer cleanup too much. | |
120 | */ | |
121 | struct completion cleanup_done; | |
122 | ||
123 | /** | |
124 | * @commit_entry: | |
125 | * | |
d574528a DV |
126 | * Entry on the per-CRTC &drm_crtc.commit_list. Protected by |
127 | * $drm_crtc.commit_lock. | |
43968d7b DV |
128 | */ |
129 | struct list_head commit_entry; | |
130 | ||
131 | /** | |
132 | * @event: | |
133 | * | |
134 | * &drm_pending_vblank_event pointer to clean up private events. | |
135 | */ | |
136 | struct drm_pending_vblank_event *event; | |
137 | }; | |
138 | ||
139 | struct __drm_planes_state { | |
140 | struct drm_plane *ptr; | |
581e49fe | 141 | struct drm_plane_state *state, *old_state, *new_state; |
43968d7b DV |
142 | }; |
143 | ||
144 | struct __drm_crtcs_state { | |
145 | struct drm_crtc *ptr; | |
581e49fe | 146 | struct drm_crtc_state *state, *old_state, *new_state; |
7e9081c5 | 147 | s32 __user *out_fence_ptr; |
bdc57146 | 148 | unsigned last_vblank_count; |
43968d7b DV |
149 | }; |
150 | ||
151 | struct __drm_connnectors_state { | |
152 | struct drm_connector *ptr; | |
581e49fe | 153 | struct drm_connector_state *state, *old_state, *new_state; |
43968d7b DV |
154 | }; |
155 | ||
a4370c77 VS |
156 | struct drm_private_obj; |
157 | struct drm_private_state; | |
158 | ||
b430c27a PD |
159 | /** |
160 | * struct drm_private_state_funcs - atomic state functions for private objects | |
161 | * | |
162 | * These hooks are used by atomic helpers to create, swap and destroy states of | |
163 | * private objects. The structure itself is used as a vtable to identify the | |
164 | * associated private object type. Each private object type that needs to be | |
165 | * added to the atomic states is expected to have an implementation of these | |
166 | * hooks and pass a pointer to it's drm_private_state_funcs struct to | |
167 | * drm_atomic_get_private_obj_state(). | |
168 | */ | |
169 | struct drm_private_state_funcs { | |
170 | /** | |
a4370c77 | 171 | * @atomic_duplicate_state: |
b430c27a PD |
172 | * |
173 | * Duplicate the current state of the private object and return it. It | |
174 | * is an error to call this before obj->state has been initialized. | |
175 | * | |
176 | * RETURNS: | |
177 | * | |
178 | * Duplicated atomic state or NULL when obj->state is not | |
179 | * initialized or allocation failed. | |
180 | */ | |
a4370c77 | 181 | struct drm_private_state *(*atomic_duplicate_state)(struct drm_private_obj *obj); |
b430c27a PD |
182 | |
183 | /** | |
a4370c77 | 184 | * @atomic_destroy_state: |
b430c27a | 185 | * |
a4370c77 | 186 | * Frees the private object state created with @atomic_duplicate_state. |
b430c27a | 187 | */ |
a4370c77 VS |
188 | void (*atomic_destroy_state)(struct drm_private_obj *obj, |
189 | struct drm_private_state *state); | |
190 | }; | |
b430c27a | 191 | |
a4370c77 VS |
192 | struct drm_private_obj { |
193 | struct drm_private_state *state; | |
194 | ||
195 | const struct drm_private_state_funcs *funcs; | |
196 | }; | |
197 | ||
198 | struct drm_private_state { | |
199 | struct drm_atomic_state *state; | |
b430c27a PD |
200 | }; |
201 | ||
202 | struct __drm_private_objs_state { | |
a4370c77 VS |
203 | struct drm_private_obj *ptr; |
204 | struct drm_private_state *state, *old_state, *new_state; | |
b430c27a PD |
205 | }; |
206 | ||
43968d7b DV |
207 | /** |
208 | * struct drm_atomic_state - the global state object for atomic updates | |
0853695c | 209 | * @ref: count of all references to this state (will not be freed until zero) |
43968d7b DV |
210 | * @dev: parent DRM device |
211 | * @allow_modeset: allow full modeset | |
212 | * @legacy_cursor_update: hint to enforce legacy cursor IOCTL semantics | |
fef9df8b | 213 | * @async_update: hint for asynchronous plane update |
43968d7b DV |
214 | * @planes: pointer to array of structures with per-plane data |
215 | * @crtcs: pointer to array of CRTC pointers | |
216 | * @num_connector: size of the @connectors and @connector_states arrays | |
217 | * @connectors: pointer to array of structures with per-connector data | |
b430c27a PD |
218 | * @num_private_objs: size of the @private_objs array |
219 | * @private_objs: pointer to array of private object pointers | |
43968d7b DV |
220 | * @acquire_ctx: acquire context for this atomic modeset state update |
221 | */ | |
222 | struct drm_atomic_state { | |
0853695c CW |
223 | struct kref ref; |
224 | ||
43968d7b DV |
225 | struct drm_device *dev; |
226 | bool allow_modeset : 1; | |
227 | bool legacy_cursor_update : 1; | |
fef9df8b | 228 | bool async_update : 1; |
43968d7b DV |
229 | struct __drm_planes_state *planes; |
230 | struct __drm_crtcs_state *crtcs; | |
231 | int num_connector; | |
232 | struct __drm_connnectors_state *connectors; | |
b430c27a PD |
233 | int num_private_objs; |
234 | struct __drm_private_objs_state *private_objs; | |
43968d7b DV |
235 | |
236 | struct drm_modeset_acquire_ctx *acquire_ctx; | |
237 | ||
21a01abb ML |
238 | /** |
239 | * @fake_commit: | |
240 | * | |
241 | * Used for signaling unbound planes/connectors. | |
242 | * When a connector or plane is not bound to any CRTC, it's still important | |
243 | * to preserve linearity to prevent the atomic states from being freed to early. | |
244 | * | |
245 | * This commit (if set) is not bound to any crtc, but will be completed when | |
246 | * drm_atomic_helper_commit_hw_done() is called. | |
247 | */ | |
248 | struct drm_crtc_commit *fake_commit; | |
249 | ||
43968d7b DV |
250 | /** |
251 | * @commit_work: | |
252 | * | |
253 | * Work item which can be used by the driver or helpers to execute the | |
254 | * commit without blocking. | |
255 | */ | |
256 | struct work_struct commit_work; | |
257 | }; | |
258 | ||
b3ba3f6f DV |
259 | void __drm_crtc_commit_free(struct kref *kref); |
260 | ||
261 | /** | |
262 | * drm_crtc_commit_get - acquire a reference to the CRTC commit | |
263 | * @commit: CRTC commit | |
264 | * | |
265 | * Increases the reference of @commit. | |
f46640b9 ML |
266 | * |
267 | * Returns: | |
268 | * The pointer to @commit, with reference increased. | |
b3ba3f6f | 269 | */ |
f46640b9 | 270 | static inline struct drm_crtc_commit *drm_crtc_commit_get(struct drm_crtc_commit *commit) |
3b24f7d6 DV |
271 | { |
272 | kref_get(&commit->ref); | |
f46640b9 | 273 | return commit; |
3b24f7d6 DV |
274 | } |
275 | ||
b3ba3f6f DV |
276 | /** |
277 | * drm_crtc_commit_put - release a reference to the CRTC commmit | |
278 | * @commit: CRTC commit | |
279 | * | |
280 | * This releases a reference to @commit which is freed after removing the | |
281 | * final reference. No locking required and callable from any context. | |
282 | */ | |
283 | static inline void drm_crtc_commit_put(struct drm_crtc_commit *commit) | |
284 | { | |
285 | kref_put(&commit->ref, __drm_crtc_commit_free); | |
286 | } | |
287 | ||
cc4ceb48 DV |
288 | struct drm_atomic_state * __must_check |
289 | drm_atomic_state_alloc(struct drm_device *dev); | |
290 | void drm_atomic_state_clear(struct drm_atomic_state *state); | |
0853695c CW |
291 | |
292 | /** | |
293 | * drm_atomic_state_get - acquire a reference to the atomic state | |
294 | * @state: The atomic state | |
295 | * | |
296 | * Returns a new reference to the @state | |
297 | */ | |
298 | static inline struct drm_atomic_state * | |
299 | drm_atomic_state_get(struct drm_atomic_state *state) | |
300 | { | |
301 | kref_get(&state->ref); | |
302 | return state; | |
303 | } | |
304 | ||
305 | void __drm_atomic_state_free(struct kref *ref); | |
306 | ||
307 | /** | |
308 | * drm_atomic_state_put - release a reference to the atomic state | |
309 | * @state: The atomic state | |
310 | * | |
311 | * This releases a reference to @state which is freed after removing the | |
312 | * final reference. No locking required and callable from any context. | |
313 | */ | |
314 | static inline void drm_atomic_state_put(struct drm_atomic_state *state) | |
315 | { | |
316 | kref_put(&state->ref, __drm_atomic_state_free); | |
317 | } | |
036ef573 ML |
318 | |
319 | int __must_check | |
320 | drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state); | |
321 | void drm_atomic_state_default_clear(struct drm_atomic_state *state); | |
322 | void drm_atomic_state_default_release(struct drm_atomic_state *state); | |
cc4ceb48 DV |
323 | |
324 | struct drm_crtc_state * __must_check | |
325 | drm_atomic_get_crtc_state(struct drm_atomic_state *state, | |
326 | struct drm_crtc *crtc); | |
40ecc694 RC |
327 | int drm_atomic_crtc_set_property(struct drm_crtc *crtc, |
328 | struct drm_crtc_state *state, struct drm_property *property, | |
329 | uint64_t val); | |
cc4ceb48 DV |
330 | struct drm_plane_state * __must_check |
331 | drm_atomic_get_plane_state(struct drm_atomic_state *state, | |
332 | struct drm_plane *plane); | |
333 | struct drm_connector_state * __must_check | |
334 | drm_atomic_get_connector_state(struct drm_atomic_state *state, | |
335 | struct drm_connector *connector); | |
88a48e29 | 336 | |
a4370c77 VS |
337 | void drm_atomic_private_obj_init(struct drm_private_obj *obj, |
338 | struct drm_private_state *state, | |
339 | const struct drm_private_state_funcs *funcs); | |
340 | void drm_atomic_private_obj_fini(struct drm_private_obj *obj); | |
341 | ||
342 | struct drm_private_state * __must_check | |
b430c27a | 343 | drm_atomic_get_private_obj_state(struct drm_atomic_state *state, |
a4370c77 | 344 | struct drm_private_obj *obj); |
b430c27a | 345 | |
1b26a5e1 ML |
346 | /** |
347 | * drm_atomic_get_existing_crtc_state - get crtc state, if it exists | |
348 | * @state: global atomic state object | |
349 | * @crtc: crtc to grab | |
350 | * | |
351 | * This function returns the crtc state for the given crtc, or NULL | |
352 | * if the crtc is not part of the global atomic state. | |
2107777c ML |
353 | * |
354 | * This function is deprecated, @drm_atomic_get_old_crtc_state or | |
355 | * @drm_atomic_get_new_crtc_state should be used instead. | |
1b26a5e1 ML |
356 | */ |
357 | static inline struct drm_crtc_state * | |
358 | drm_atomic_get_existing_crtc_state(struct drm_atomic_state *state, | |
359 | struct drm_crtc *crtc) | |
360 | { | |
5d943aa6 | 361 | return state->crtcs[drm_crtc_index(crtc)].state; |
1b26a5e1 ML |
362 | } |
363 | ||
2107777c ML |
364 | /** |
365 | * drm_atomic_get_old_crtc_state - get old crtc state, if it exists | |
366 | * @state: global atomic state object | |
367 | * @crtc: crtc to grab | |
368 | * | |
369 | * This function returns the old crtc state for the given crtc, or | |
370 | * NULL if the crtc is not part of the global atomic state. | |
371 | */ | |
372 | static inline struct drm_crtc_state * | |
373 | drm_atomic_get_old_crtc_state(struct drm_atomic_state *state, | |
374 | struct drm_crtc *crtc) | |
375 | { | |
376 | return state->crtcs[drm_crtc_index(crtc)].old_state; | |
377 | } | |
378 | /** | |
379 | * drm_atomic_get_new_crtc_state - get new crtc state, if it exists | |
380 | * @state: global atomic state object | |
381 | * @crtc: crtc to grab | |
382 | * | |
383 | * This function returns the new crtc state for the given crtc, or | |
384 | * NULL if the crtc is not part of the global atomic state. | |
385 | */ | |
386 | static inline struct drm_crtc_state * | |
387 | drm_atomic_get_new_crtc_state(struct drm_atomic_state *state, | |
388 | struct drm_crtc *crtc) | |
389 | { | |
390 | return state->crtcs[drm_crtc_index(crtc)].new_state; | |
391 | } | |
392 | ||
1b26a5e1 ML |
393 | /** |
394 | * drm_atomic_get_existing_plane_state - get plane state, if it exists | |
395 | * @state: global atomic state object | |
396 | * @plane: plane to grab | |
397 | * | |
398 | * This function returns the plane state for the given plane, or NULL | |
399 | * if the plane is not part of the global atomic state. | |
2107777c ML |
400 | * |
401 | * This function is deprecated, @drm_atomic_get_old_plane_state or | |
402 | * @drm_atomic_get_new_plane_state should be used instead. | |
1b26a5e1 ML |
403 | */ |
404 | static inline struct drm_plane_state * | |
405 | drm_atomic_get_existing_plane_state(struct drm_atomic_state *state, | |
406 | struct drm_plane *plane) | |
407 | { | |
b8b5342b | 408 | return state->planes[drm_plane_index(plane)].state; |
1b26a5e1 ML |
409 | } |
410 | ||
2107777c ML |
411 | /** |
412 | * drm_atomic_get_old_plane_state - get plane state, if it exists | |
413 | * @state: global atomic state object | |
414 | * @plane: plane to grab | |
415 | * | |
416 | * This function returns the old plane state for the given plane, or | |
417 | * NULL if the plane is not part of the global atomic state. | |
418 | */ | |
419 | static inline struct drm_plane_state * | |
420 | drm_atomic_get_old_plane_state(struct drm_atomic_state *state, | |
421 | struct drm_plane *plane) | |
422 | { | |
423 | return state->planes[drm_plane_index(plane)].old_state; | |
424 | } | |
425 | ||
426 | /** | |
427 | * drm_atomic_get_new_plane_state - get plane state, if it exists | |
428 | * @state: global atomic state object | |
429 | * @plane: plane to grab | |
430 | * | |
431 | * This function returns the new plane state for the given plane, or | |
432 | * NULL if the plane is not part of the global atomic state. | |
433 | */ | |
434 | static inline struct drm_plane_state * | |
435 | drm_atomic_get_new_plane_state(struct drm_atomic_state *state, | |
436 | struct drm_plane *plane) | |
437 | { | |
438 | return state->planes[drm_plane_index(plane)].new_state; | |
439 | } | |
440 | ||
1b26a5e1 ML |
441 | /** |
442 | * drm_atomic_get_existing_connector_state - get connector state, if it exists | |
443 | * @state: global atomic state object | |
444 | * @connector: connector to grab | |
445 | * | |
446 | * This function returns the connector state for the given connector, | |
447 | * or NULL if the connector is not part of the global atomic state. | |
2107777c ML |
448 | * |
449 | * This function is deprecated, @drm_atomic_get_old_connector_state or | |
450 | * @drm_atomic_get_new_connector_state should be used instead. | |
1b26a5e1 ML |
451 | */ |
452 | static inline struct drm_connector_state * | |
453 | drm_atomic_get_existing_connector_state(struct drm_atomic_state *state, | |
454 | struct drm_connector *connector) | |
455 | { | |
456 | int index = drm_connector_index(connector); | |
457 | ||
458 | if (index >= state->num_connector) | |
459 | return NULL; | |
460 | ||
63e83c1d | 461 | return state->connectors[index].state; |
1b26a5e1 ML |
462 | } |
463 | ||
2107777c ML |
464 | /** |
465 | * drm_atomic_get_old_connector_state - get connector state, if it exists | |
466 | * @state: global atomic state object | |
467 | * @connector: connector to grab | |
468 | * | |
469 | * This function returns the old connector state for the given connector, | |
470 | * or NULL if the connector is not part of the global atomic state. | |
471 | */ | |
472 | static inline struct drm_connector_state * | |
473 | drm_atomic_get_old_connector_state(struct drm_atomic_state *state, | |
474 | struct drm_connector *connector) | |
475 | { | |
476 | int index = drm_connector_index(connector); | |
477 | ||
478 | if (index >= state->num_connector) | |
479 | return NULL; | |
480 | ||
481 | return state->connectors[index].old_state; | |
482 | } | |
483 | ||
484 | /** | |
485 | * drm_atomic_get_new_connector_state - get connector state, if it exists | |
486 | * @state: global atomic state object | |
487 | * @connector: connector to grab | |
488 | * | |
489 | * This function returns the new connector state for the given connector, | |
490 | * or NULL if the connector is not part of the global atomic state. | |
491 | */ | |
492 | static inline struct drm_connector_state * | |
493 | drm_atomic_get_new_connector_state(struct drm_atomic_state *state, | |
494 | struct drm_connector *connector) | |
495 | { | |
496 | int index = drm_connector_index(connector); | |
497 | ||
498 | if (index >= state->num_connector) | |
499 | return NULL; | |
500 | ||
501 | return state->connectors[index].new_state; | |
502 | } | |
503 | ||
2f196b7c DV |
504 | /** |
505 | * __drm_atomic_get_current_plane_state - get current plane state | |
506 | * @state: global atomic state object | |
507 | * @plane: plane to grab | |
508 | * | |
509 | * This function returns the plane state for the given plane, either from | |
510 | * @state, or if the plane isn't part of the atomic state update, from @plane. | |
511 | * This is useful in atomic check callbacks, when drivers need to peek at, but | |
512 | * not change, state of other planes, since it avoids threading an error code | |
513 | * back up the call chain. | |
514 | * | |
515 | * WARNING: | |
516 | * | |
517 | * Note that this function is in general unsafe since it doesn't check for the | |
518 | * required locking for access state structures. Drivers must ensure that it is | |
60c9e190 | 519 | * safe to access the returned state structure through other means. One common |
2f196b7c | 520 | * example is when planes are fixed to a single CRTC, and the driver knows that |
60c9e190 | 521 | * the CRTC lock is held already. In that case holding the CRTC lock gives a |
2f196b7c DV |
522 | * read-lock on all planes connected to that CRTC. But if planes can be |
523 | * reassigned things get more tricky. In that case it's better to use | |
524 | * drm_atomic_get_plane_state and wire up full error handling. | |
525 | * | |
526 | * Returns: | |
527 | * | |
528 | * Read-only pointer to the current plane state. | |
529 | */ | |
530 | static inline const struct drm_plane_state * | |
531 | __drm_atomic_get_current_plane_state(struct drm_atomic_state *state, | |
532 | struct drm_plane *plane) | |
533 | { | |
b8b5342b DV |
534 | if (state->planes[drm_plane_index(plane)].state) |
535 | return state->planes[drm_plane_index(plane)].state; | |
2f196b7c DV |
536 | |
537 | return plane->state; | |
538 | } | |
539 | ||
819364da DS |
540 | int __must_check |
541 | drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, | |
91110a4b | 542 | const struct drm_display_mode *mode); |
cc4ceb48 | 543 | int __must_check |
955f3c33 DS |
544 | drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, |
545 | struct drm_property_blob *blob); | |
546 | int __must_check | |
07cc0ef6 DV |
547 | drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, |
548 | struct drm_crtc *crtc); | |
321ebf04 DV |
549 | void drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state, |
550 | struct drm_framebuffer *fb); | |
13b55664 GP |
551 | void drm_atomic_set_fence_for_plane(struct drm_plane_state *plane_state, |
552 | struct dma_fence *fence); | |
cc4ceb48 DV |
553 | int __must_check |
554 | drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, | |
555 | struct drm_crtc *crtc); | |
556 | int __must_check | |
557 | drm_atomic_add_affected_connectors(struct drm_atomic_state *state, | |
558 | struct drm_crtc *crtc); | |
e01e9f75 ML |
559 | int __must_check |
560 | drm_atomic_add_affected_planes(struct drm_atomic_state *state, | |
561 | struct drm_crtc *crtc); | |
562 | ||
0f45c26f ML |
563 | void |
564 | drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret); | |
565 | ||
cc4ceb48 DV |
566 | int __must_check drm_atomic_check_only(struct drm_atomic_state *state); |
567 | int __must_check drm_atomic_commit(struct drm_atomic_state *state); | |
b837ba0a | 568 | int __must_check drm_atomic_nonblocking_commit(struct drm_atomic_state *state); |
cc4ceb48 | 569 | |
6559c901 RC |
570 | void drm_state_dump(struct drm_device *dev, struct drm_printer *p); |
571 | ||
f9a76955 DV |
572 | /** |
573 | * for_each_oldnew_connector_in_state - iterate over all connectors in an atomic update | |
574 | * @__state: &struct drm_atomic_state pointer | |
575 | * @connector: &struct drm_connector iteration cursor | |
576 | * @old_connector_state: &struct drm_connector_state iteration cursor for the | |
577 | * old state | |
578 | * @new_connector_state: &struct drm_connector_state iteration cursor for the | |
579 | * new state | |
580 | * @__i: int iteration cursor, for macro-internal use | |
581 | * | |
582 | * This iterates over all connectors in an atomic update, tracking both old and | |
583 | * new state. This is useful in places where the state delta needs to be | |
584 | * considered, for example in atomic check functions. | |
585 | */ | |
581e49fe ML |
586 | #define for_each_oldnew_connector_in_state(__state, connector, old_connector_state, new_connector_state, __i) \ |
587 | for ((__i) = 0; \ | |
331494eb ML |
588 | (__i) < (__state)->num_connector; \ |
589 | (__i)++) \ | |
590 | for_each_if ((__state)->connectors[__i].ptr && \ | |
591 | ((connector) = (__state)->connectors[__i].ptr, \ | |
592 | (old_connector_state) = (__state)->connectors[__i].old_state, \ | |
593 | (new_connector_state) = (__state)->connectors[__i].new_state, 1)) | |
581e49fe | 594 | |
f9a76955 DV |
595 | /** |
596 | * for_each_old_connector_in_state - iterate over all connectors in an atomic update | |
597 | * @__state: &struct drm_atomic_state pointer | |
598 | * @connector: &struct drm_connector iteration cursor | |
599 | * @old_connector_state: &struct drm_connector_state iteration cursor for the | |
600 | * old state | |
601 | * @__i: int iteration cursor, for macro-internal use | |
602 | * | |
603 | * This iterates over all connectors in an atomic update, tracking only the old | |
604 | * state. This is useful in disable functions, where we need the old state the | |
605 | * hardware is still in. | |
606 | */ | |
581e49fe ML |
607 | #define for_each_old_connector_in_state(__state, connector, old_connector_state, __i) \ |
608 | for ((__i) = 0; \ | |
331494eb ML |
609 | (__i) < (__state)->num_connector; \ |
610 | (__i)++) \ | |
611 | for_each_if ((__state)->connectors[__i].ptr && \ | |
612 | ((connector) = (__state)->connectors[__i].ptr, \ | |
613 | (old_connector_state) = (__state)->connectors[__i].old_state, 1)) | |
581e49fe | 614 | |
f9a76955 DV |
615 | /** |
616 | * for_each_new_connector_in_state - iterate over all connectors in an atomic update | |
617 | * @__state: &struct drm_atomic_state pointer | |
618 | * @connector: &struct drm_connector iteration cursor | |
619 | * @new_connector_state: &struct drm_connector_state iteration cursor for the | |
620 | * new state | |
621 | * @__i: int iteration cursor, for macro-internal use | |
622 | * | |
623 | * This iterates over all connectors in an atomic update, tracking only the new | |
624 | * state. This is useful in enable functions, where we need the new state the | |
625 | * hardware should be in when the atomic commit operation has completed. | |
626 | */ | |
581e49fe ML |
627 | #define for_each_new_connector_in_state(__state, connector, new_connector_state, __i) \ |
628 | for ((__i) = 0; \ | |
331494eb ML |
629 | (__i) < (__state)->num_connector; \ |
630 | (__i)++) \ | |
631 | for_each_if ((__state)->connectors[__i].ptr && \ | |
632 | ((connector) = (__state)->connectors[__i].ptr, \ | |
633 | (new_connector_state) = (__state)->connectors[__i].new_state, 1)) | |
581e49fe | 634 | |
f9a76955 DV |
635 | /** |
636 | * for_each_oldnew_crtc_in_state - iterate over all CRTCs in an atomic update | |
637 | * @__state: &struct drm_atomic_state pointer | |
638 | * @crtc: &struct drm_crtc iteration cursor | |
639 | * @old_crtc_state: &struct drm_crtc_state iteration cursor for the old state | |
640 | * @new_crtc_state: &struct drm_crtc_state iteration cursor for the new state | |
641 | * @__i: int iteration cursor, for macro-internal use | |
642 | * | |
643 | * This iterates over all CRTCs in an atomic update, tracking both old and | |
644 | * new state. This is useful in places where the state delta needs to be | |
645 | * considered, for example in atomic check functions. | |
646 | */ | |
581e49fe ML |
647 | #define for_each_oldnew_crtc_in_state(__state, crtc, old_crtc_state, new_crtc_state, __i) \ |
648 | for ((__i) = 0; \ | |
331494eb | 649 | (__i) < (__state)->dev->mode_config.num_crtc; \ |
581e49fe | 650 | (__i)++) \ |
331494eb ML |
651 | for_each_if ((__state)->crtcs[__i].ptr && \ |
652 | ((crtc) = (__state)->crtcs[__i].ptr, \ | |
653 | (old_crtc_state) = (__state)->crtcs[__i].old_state, \ | |
654 | (new_crtc_state) = (__state)->crtcs[__i].new_state, 1)) | |
581e49fe | 655 | |
f9a76955 DV |
656 | /** |
657 | * for_each_old_crtc_in_state - iterate over all CRTCs in an atomic update | |
658 | * @__state: &struct drm_atomic_state pointer | |
659 | * @crtc: &struct drm_crtc iteration cursor | |
660 | * @old_crtc_state: &struct drm_crtc_state iteration cursor for the old state | |
661 | * @__i: int iteration cursor, for macro-internal use | |
662 | * | |
663 | * This iterates over all CRTCs in an atomic update, tracking only the old | |
664 | * state. This is useful in disable functions, where we need the old state the | |
665 | * hardware is still in. | |
666 | */ | |
581e49fe ML |
667 | #define for_each_old_crtc_in_state(__state, crtc, old_crtc_state, __i) \ |
668 | for ((__i) = 0; \ | |
331494eb | 669 | (__i) < (__state)->dev->mode_config.num_crtc; \ |
581e49fe | 670 | (__i)++) \ |
331494eb ML |
671 | for_each_if ((__state)->crtcs[__i].ptr && \ |
672 | ((crtc) = (__state)->crtcs[__i].ptr, \ | |
673 | (old_crtc_state) = (__state)->crtcs[__i].old_state, 1)) | |
581e49fe | 674 | |
f9a76955 DV |
675 | /** |
676 | * for_each_new_crtc_in_state - iterate over all CRTCs in an atomic update | |
677 | * @__state: &struct drm_atomic_state pointer | |
678 | * @crtc: &struct drm_crtc iteration cursor | |
679 | * @new_crtc_state: &struct drm_crtc_state iteration cursor for the new state | |
680 | * @__i: int iteration cursor, for macro-internal use | |
681 | * | |
682 | * This iterates over all CRTCs in an atomic update, tracking only the new | |
683 | * state. This is useful in enable functions, where we need the new state the | |
684 | * hardware should be in when the atomic commit operation has completed. | |
685 | */ | |
581e49fe ML |
686 | #define for_each_new_crtc_in_state(__state, crtc, new_crtc_state, __i) \ |
687 | for ((__i) = 0; \ | |
331494eb | 688 | (__i) < (__state)->dev->mode_config.num_crtc; \ |
581e49fe | 689 | (__i)++) \ |
331494eb ML |
690 | for_each_if ((__state)->crtcs[__i].ptr && \ |
691 | ((crtc) = (__state)->crtcs[__i].ptr, \ | |
692 | (new_crtc_state) = (__state)->crtcs[__i].new_state, 1)) | |
581e49fe | 693 | |
f9a76955 DV |
694 | /** |
695 | * for_each_oldnew_plane_in_state - iterate over all planes in an atomic update | |
696 | * @__state: &struct drm_atomic_state pointer | |
697 | * @plane: &struct drm_plane iteration cursor | |
698 | * @old_plane_state: &struct drm_plane_state iteration cursor for the old state | |
699 | * @new_plane_state: &struct drm_plane_state iteration cursor for the new state | |
700 | * @__i: int iteration cursor, for macro-internal use | |
701 | * | |
702 | * This iterates over all planes in an atomic update, tracking both old and | |
703 | * new state. This is useful in places where the state delta needs to be | |
704 | * considered, for example in atomic check functions. | |
705 | */ | |
581e49fe ML |
706 | #define for_each_oldnew_plane_in_state(__state, plane, old_plane_state, new_plane_state, __i) \ |
707 | for ((__i) = 0; \ | |
331494eb | 708 | (__i) < (__state)->dev->mode_config.num_total_plane; \ |
581e49fe | 709 | (__i)++) \ |
331494eb ML |
710 | for_each_if ((__state)->planes[__i].ptr && \ |
711 | ((plane) = (__state)->planes[__i].ptr, \ | |
712 | (old_plane_state) = (__state)->planes[__i].old_state,\ | |
713 | (new_plane_state) = (__state)->planes[__i].new_state, 1)) | |
581e49fe | 714 | |
f9a76955 DV |
715 | /** |
716 | * for_each_old_plane_in_state - iterate over all planes in an atomic update | |
717 | * @__state: &struct drm_atomic_state pointer | |
718 | * @plane: &struct drm_plane iteration cursor | |
719 | * @old_plane_state: &struct drm_plane_state iteration cursor for the old state | |
720 | * @__i: int iteration cursor, for macro-internal use | |
721 | * | |
722 | * This iterates over all planes in an atomic update, tracking only the old | |
723 | * state. This is useful in disable functions, where we need the old state the | |
724 | * hardware is still in. | |
725 | */ | |
581e49fe ML |
726 | #define for_each_old_plane_in_state(__state, plane, old_plane_state, __i) \ |
727 | for ((__i) = 0; \ | |
331494eb | 728 | (__i) < (__state)->dev->mode_config.num_total_plane; \ |
581e49fe | 729 | (__i)++) \ |
331494eb ML |
730 | for_each_if ((__state)->planes[__i].ptr && \ |
731 | ((plane) = (__state)->planes[__i].ptr, \ | |
732 | (old_plane_state) = (__state)->planes[__i].old_state, 1)) | |
f9a76955 DV |
733 | /** |
734 | * for_each_new_plane_in_state - iterate over all planes in an atomic update | |
735 | * @__state: &struct drm_atomic_state pointer | |
736 | * @plane: &struct drm_plane iteration cursor | |
737 | * @new_plane_state: &struct drm_plane_state iteration cursor for the new state | |
738 | * @__i: int iteration cursor, for macro-internal use | |
739 | * | |
740 | * This iterates over all planes in an atomic update, tracking only the new | |
741 | * state. This is useful in enable functions, where we need the new state the | |
742 | * hardware should be in when the atomic commit operation has completed. | |
743 | */ | |
581e49fe ML |
744 | #define for_each_new_plane_in_state(__state, plane, new_plane_state, __i) \ |
745 | for ((__i) = 0; \ | |
331494eb | 746 | (__i) < (__state)->dev->mode_config.num_total_plane; \ |
581e49fe | 747 | (__i)++) \ |
331494eb ML |
748 | for_each_if ((__state)->planes[__i].ptr && \ |
749 | ((plane) = (__state)->planes[__i].ptr, \ | |
750 | (new_plane_state) = (__state)->planes[__i].new_state, 1)) | |
581e49fe | 751 | |
b430c27a | 752 | /** |
a4370c77 | 753 | * for_each_oldnew_private_obj_in_state - iterate over all private objects in an atomic update |
b430c27a | 754 | * @__state: &struct drm_atomic_state pointer |
a4370c77 VS |
755 | * @obj: &struct drm_private_obj iteration cursor |
756 | * @old_obj_state: &struct drm_private_state iteration cursor for the old state | |
757 | * @new_obj_state: &struct drm_private_state iteration cursor for the new state | |
b430c27a | 758 | * @__i: int iteration cursor, for macro-internal use |
b430c27a | 759 | * |
a4370c77 VS |
760 | * This iterates over all private objects in an atomic update, tracking both |
761 | * old and new state. This is useful in places where the state delta needs | |
762 | * to be considered, for example in atomic check functions. | |
b430c27a | 763 | */ |
a4370c77 VS |
764 | #define for_each_oldnew_private_obj_in_state(__state, obj, old_obj_state, new_obj_state, __i) \ |
765 | for ((__i) = 0; \ | |
766 | (__i) < (__state)->num_private_objs && \ | |
767 | ((obj) = (__state)->private_objs[__i].ptr, \ | |
768 | (old_obj_state) = (__state)->private_objs[__i].old_state, \ | |
769 | (new_obj_state) = (__state)->private_objs[__i].new_state, 1); \ | |
f0d2e86c | 770 | (__i)++) |
a4370c77 VS |
771 | |
772 | /** | |
773 | * for_each_old_private_obj_in_state - iterate over all private objects in an atomic update | |
774 | * @__state: &struct drm_atomic_state pointer | |
775 | * @obj: &struct drm_private_obj iteration cursor | |
776 | * @old_obj_state: &struct drm_private_state iteration cursor for the old state | |
777 | * @__i: int iteration cursor, for macro-internal use | |
778 | * | |
779 | * This iterates over all private objects in an atomic update, tracking only | |
780 | * the old state. This is useful in disable functions, where we need the old | |
781 | * state the hardware is still in. | |
782 | */ | |
783 | #define for_each_old_private_obj_in_state(__state, obj, old_obj_state, __i) \ | |
784 | for ((__i) = 0; \ | |
785 | (__i) < (__state)->num_private_objs && \ | |
786 | ((obj) = (__state)->private_objs[__i].ptr, \ | |
787 | (old_obj_state) = (__state)->private_objs[__i].old_state, 1); \ | |
f0d2e86c | 788 | (__i)++) |
b430c27a PD |
789 | |
790 | /** | |
a4370c77 | 791 | * for_each_new_private_obj_in_state - iterate over all private objects in an atomic update |
b430c27a | 792 | * @__state: &struct drm_atomic_state pointer |
a4370c77 VS |
793 | * @obj: &struct drm_private_obj iteration cursor |
794 | * @new_obj_state: &struct drm_private_state iteration cursor for the new state | |
b430c27a | 795 | * @__i: int iteration cursor, for macro-internal use |
b430c27a | 796 | * |
a4370c77 VS |
797 | * This iterates over all private objects in an atomic update, tracking only |
798 | * the new state. This is useful in enable functions, where we need the new state the | |
799 | * hardware should be in when the atomic commit operation has completed. | |
b430c27a | 800 | */ |
a4370c77 VS |
801 | #define for_each_new_private_obj_in_state(__state, obj, new_obj_state, __i) \ |
802 | for ((__i) = 0; \ | |
803 | (__i) < (__state)->num_private_objs && \ | |
804 | ((obj) = (__state)->private_objs[__i].ptr, \ | |
805 | (new_obj_state) = (__state)->private_objs[__i].new_state, 1); \ | |
f0d2e86c | 806 | (__i)++) |
b430c27a | 807 | |
081e9c0f DV |
808 | /** |
809 | * drm_atomic_crtc_needs_modeset - compute combined modeset need | |
810 | * @state: &drm_crtc_state for the CRTC | |
811 | * | |
ea0dd85a | 812 | * To give drivers flexibility &struct drm_crtc_state has 3 booleans to track |
081e9c0f | 813 | * whether the state CRTC changed enough to need a full modeset cycle: |
96bf51df | 814 | * mode_changed, active_changed and connectors_changed. This helper simply |
081e9c0f | 815 | * combines these three to compute the overall need for a modeset for @state. |
d807ed1c BS |
816 | * |
817 | * The atomic helper code sets these booleans, but drivers can and should | |
818 | * change them appropriately to accurately represent whether a modeset is | |
819 | * really needed. In general, drivers should avoid full modesets whenever | |
820 | * possible. | |
821 | * | |
822 | * For example if the CRTC mode has changed, and the hardware is able to enact | |
823 | * the requested mode change without going through a full modeset, the driver | |
d574528a DV |
824 | * should clear mode_changed in its &drm_mode_config_funcs.atomic_check |
825 | * implementation. | |
081e9c0f | 826 | */ |
2465ff62 | 827 | static inline bool |
79b95552 | 828 | drm_atomic_crtc_needs_modeset(const struct drm_crtc_state *state) |
2465ff62 | 829 | { |
fc596660 ML |
830 | return state->mode_changed || state->active_changed || |
831 | state->connectors_changed; | |
2465ff62 DV |
832 | } |
833 | ||
cc4ceb48 | 834 | #endif /* DRM_ATOMIC_H_ */ |