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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 | ||
29 | #include <drm/drmP.h> | |
30 | #include <drm/drm_atomic.h> | |
5488dc16 | 31 | #include <drm/drm_mode.h> |
fceffb32 | 32 | #include <drm/drm_print.h> |
96260142 | 33 | #include <linux/sync_file.h> |
cc4ceb48 | 34 | |
be35f94f | 35 | #include "drm_crtc_internal.h" |
f02b604b | 36 | #include "drm_internal.h" |
be35f94f | 37 | |
b3ba3f6f | 38 | void __drm_crtc_commit_free(struct kref *kref) |
3b24f7d6 DV |
39 | { |
40 | struct drm_crtc_commit *commit = | |
41 | container_of(kref, struct drm_crtc_commit, ref); | |
42 | ||
43 | kfree(commit); | |
44 | } | |
b3ba3f6f | 45 | EXPORT_SYMBOL(__drm_crtc_commit_free); |
3b24f7d6 | 46 | |
036ef573 ML |
47 | /** |
48 | * drm_atomic_state_default_release - | |
49 | * release memory initialized by drm_atomic_state_init | |
50 | * @state: atomic state | |
51 | * | |
52 | * Free all the memory allocated by drm_atomic_state_init. | |
da6c0596 DV |
53 | * This should only be used by drivers which are still subclassing |
54 | * &drm_atomic_state and haven't switched to &drm_private_state yet. | |
036ef573 ML |
55 | */ |
56 | void drm_atomic_state_default_release(struct drm_atomic_state *state) | |
cc4ceb48 DV |
57 | { |
58 | kfree(state->connectors); | |
cc4ceb48 | 59 | kfree(state->crtcs); |
cc4ceb48 | 60 | kfree(state->planes); |
b430c27a | 61 | kfree(state->private_objs); |
cc4ceb48 | 62 | } |
036ef573 | 63 | EXPORT_SYMBOL(drm_atomic_state_default_release); |
cc4ceb48 DV |
64 | |
65 | /** | |
036ef573 | 66 | * drm_atomic_state_init - init new atomic state |
cc4ceb48 | 67 | * @dev: DRM device |
036ef573 | 68 | * @state: atomic state |
cc4ceb48 | 69 | * |
036ef573 | 70 | * Default implementation for filling in a new atomic state. |
da6c0596 DV |
71 | * This should only be used by drivers which are still subclassing |
72 | * &drm_atomic_state and haven't switched to &drm_private_state yet. | |
cc4ceb48 | 73 | */ |
036ef573 ML |
74 | int |
75 | drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state) | |
cc4ceb48 | 76 | { |
0853695c CW |
77 | kref_init(&state->ref); |
78 | ||
d34f20d6 RC |
79 | /* TODO legacy paths should maybe do a better job about |
80 | * setting this appropriately? | |
81 | */ | |
82 | state->allow_modeset = true; | |
83 | ||
cc4ceb48 DV |
84 | state->crtcs = kcalloc(dev->mode_config.num_crtc, |
85 | sizeof(*state->crtcs), GFP_KERNEL); | |
86 | if (!state->crtcs) | |
87 | goto fail; | |
cc4ceb48 DV |
88 | state->planes = kcalloc(dev->mode_config.num_total_plane, |
89 | sizeof(*state->planes), GFP_KERNEL); | |
90 | if (!state->planes) | |
91 | goto fail; | |
cc4ceb48 DV |
92 | |
93 | state->dev = dev; | |
94 | ||
036ef573 | 95 | DRM_DEBUG_ATOMIC("Allocated atomic state %p\n", state); |
cc4ceb48 | 96 | |
036ef573 | 97 | return 0; |
cc4ceb48 | 98 | fail: |
036ef573 ML |
99 | drm_atomic_state_default_release(state); |
100 | return -ENOMEM; | |
101 | } | |
102 | EXPORT_SYMBOL(drm_atomic_state_init); | |
103 | ||
104 | /** | |
105 | * drm_atomic_state_alloc - allocate atomic state | |
106 | * @dev: DRM device | |
107 | * | |
108 | * This allocates an empty atomic state to track updates. | |
109 | */ | |
110 | struct drm_atomic_state * | |
111 | drm_atomic_state_alloc(struct drm_device *dev) | |
112 | { | |
113 | struct drm_mode_config *config = &dev->mode_config; | |
036ef573 ML |
114 | |
115 | if (!config->funcs->atomic_state_alloc) { | |
ac7c7483 DK |
116 | struct drm_atomic_state *state; |
117 | ||
036ef573 ML |
118 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
119 | if (!state) | |
120 | return NULL; | |
121 | if (drm_atomic_state_init(dev, state) < 0) { | |
122 | kfree(state); | |
123 | return NULL; | |
124 | } | |
125 | return state; | |
126 | } | |
cc4ceb48 | 127 | |
036ef573 | 128 | return config->funcs->atomic_state_alloc(dev); |
cc4ceb48 DV |
129 | } |
130 | EXPORT_SYMBOL(drm_atomic_state_alloc); | |
131 | ||
132 | /** | |
036ef573 | 133 | * drm_atomic_state_default_clear - clear base atomic state |
cc4ceb48 DV |
134 | * @state: atomic state |
135 | * | |
036ef573 | 136 | * Default implementation for clearing atomic state. |
da6c0596 DV |
137 | * This should only be used by drivers which are still subclassing |
138 | * &drm_atomic_state and haven't switched to &drm_private_state yet. | |
cc4ceb48 | 139 | */ |
036ef573 | 140 | void drm_atomic_state_default_clear(struct drm_atomic_state *state) |
cc4ceb48 DV |
141 | { |
142 | struct drm_device *dev = state->dev; | |
6f75cea6 | 143 | struct drm_mode_config *config = &dev->mode_config; |
cc4ceb48 DV |
144 | int i; |
145 | ||
17a38d9c | 146 | DRM_DEBUG_ATOMIC("Clearing atomic state %p\n", state); |
cc4ceb48 | 147 | |
f52b69f1 | 148 | for (i = 0; i < state->num_connector; i++) { |
63e83c1d | 149 | struct drm_connector *connector = state->connectors[i].ptr; |
cc4ceb48 DV |
150 | |
151 | if (!connector) | |
152 | continue; | |
153 | ||
d2307dea | 154 | connector->funcs->atomic_destroy_state(connector, |
63e83c1d DV |
155 | state->connectors[i].state); |
156 | state->connectors[i].ptr = NULL; | |
157 | state->connectors[i].state = NULL; | |
f0b408ee VS |
158 | state->connectors[i].old_state = NULL; |
159 | state->connectors[i].new_state = NULL; | |
ad093607 | 160 | drm_connector_put(connector); |
cc4ceb48 DV |
161 | } |
162 | ||
6f75cea6 | 163 | for (i = 0; i < config->num_crtc; i++) { |
5d943aa6 | 164 | struct drm_crtc *crtc = state->crtcs[i].ptr; |
cc4ceb48 DV |
165 | |
166 | if (!crtc) | |
167 | continue; | |
168 | ||
169 | crtc->funcs->atomic_destroy_state(crtc, | |
5d943aa6 | 170 | state->crtcs[i].state); |
3b24f7d6 | 171 | |
5d943aa6 DV |
172 | state->crtcs[i].ptr = NULL; |
173 | state->crtcs[i].state = NULL; | |
f0b408ee VS |
174 | state->crtcs[i].old_state = NULL; |
175 | state->crtcs[i].new_state = NULL; | |
cc4ceb48 DV |
176 | } |
177 | ||
6f75cea6 | 178 | for (i = 0; i < config->num_total_plane; i++) { |
b8b5342b | 179 | struct drm_plane *plane = state->planes[i].ptr; |
cc4ceb48 DV |
180 | |
181 | if (!plane) | |
182 | continue; | |
183 | ||
184 | plane->funcs->atomic_destroy_state(plane, | |
b8b5342b DV |
185 | state->planes[i].state); |
186 | state->planes[i].ptr = NULL; | |
187 | state->planes[i].state = NULL; | |
f0b408ee VS |
188 | state->planes[i].old_state = NULL; |
189 | state->planes[i].new_state = NULL; | |
cc4ceb48 | 190 | } |
b430c27a PD |
191 | |
192 | for (i = 0; i < state->num_private_objs; i++) { | |
a4370c77 | 193 | struct drm_private_obj *obj = state->private_objs[i].ptr; |
b430c27a | 194 | |
a4370c77 VS |
195 | obj->funcs->atomic_destroy_state(obj, |
196 | state->private_objs[i].state); | |
197 | state->private_objs[i].ptr = NULL; | |
198 | state->private_objs[i].state = NULL; | |
b430c27a PD |
199 | } |
200 | state->num_private_objs = 0; | |
201 | ||
21a01abb ML |
202 | if (state->fake_commit) { |
203 | drm_crtc_commit_put(state->fake_commit); | |
204 | state->fake_commit = NULL; | |
205 | } | |
cc4ceb48 | 206 | } |
036ef573 ML |
207 | EXPORT_SYMBOL(drm_atomic_state_default_clear); |
208 | ||
209 | /** | |
210 | * drm_atomic_state_clear - clear state object | |
211 | * @state: atomic state | |
212 | * | |
213 | * When the w/w mutex algorithm detects a deadlock we need to back off and drop | |
214 | * all locks. So someone else could sneak in and change the current modeset | |
215 | * configuration. Which means that all the state assembled in @state is no | |
216 | * longer an atomic update to the current state, but to some arbitrary earlier | |
d574528a DV |
217 | * state. Which could break assumptions the driver's |
218 | * &drm_mode_config_funcs.atomic_check likely relies on. | |
036ef573 ML |
219 | * |
220 | * Hence we must clear all cached state and completely start over, using this | |
221 | * function. | |
222 | */ | |
223 | void drm_atomic_state_clear(struct drm_atomic_state *state) | |
224 | { | |
225 | struct drm_device *dev = state->dev; | |
226 | struct drm_mode_config *config = &dev->mode_config; | |
227 | ||
228 | if (config->funcs->atomic_state_clear) | |
229 | config->funcs->atomic_state_clear(state); | |
230 | else | |
231 | drm_atomic_state_default_clear(state); | |
232 | } | |
cc4ceb48 DV |
233 | EXPORT_SYMBOL(drm_atomic_state_clear); |
234 | ||
235 | /** | |
0853695c CW |
236 | * __drm_atomic_state_free - free all memory for an atomic state |
237 | * @ref: This atomic state to deallocate | |
cc4ceb48 DV |
238 | * |
239 | * This frees all memory associated with an atomic state, including all the | |
240 | * per-object state for planes, crtcs and connectors. | |
241 | */ | |
0853695c | 242 | void __drm_atomic_state_free(struct kref *ref) |
cc4ceb48 | 243 | { |
0853695c CW |
244 | struct drm_atomic_state *state = container_of(ref, typeof(*state), ref); |
245 | struct drm_mode_config *config = &state->dev->mode_config; | |
036ef573 | 246 | |
cc4ceb48 DV |
247 | drm_atomic_state_clear(state); |
248 | ||
17a38d9c | 249 | DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state); |
cc4ceb48 | 250 | |
036ef573 ML |
251 | if (config->funcs->atomic_state_free) { |
252 | config->funcs->atomic_state_free(state); | |
253 | } else { | |
254 | drm_atomic_state_default_release(state); | |
255 | kfree(state); | |
256 | } | |
cc4ceb48 | 257 | } |
0853695c | 258 | EXPORT_SYMBOL(__drm_atomic_state_free); |
cc4ceb48 DV |
259 | |
260 | /** | |
261 | * drm_atomic_get_crtc_state - get crtc state | |
262 | * @state: global atomic state object | |
263 | * @crtc: crtc to get state object for | |
264 | * | |
265 | * This function returns the crtc state for the given crtc, allocating it if | |
266 | * needed. It will also grab the relevant crtc lock to make sure that the state | |
267 | * is consistent. | |
268 | * | |
269 | * Returns: | |
270 | * | |
271 | * Either the allocated state or the error code encoded into the pointer. When | |
272 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the | |
273 | * entire atomic sequence must be restarted. All other errors are fatal. | |
274 | */ | |
275 | struct drm_crtc_state * | |
276 | drm_atomic_get_crtc_state(struct drm_atomic_state *state, | |
277 | struct drm_crtc *crtc) | |
278 | { | |
1b26a5e1 | 279 | int ret, index = drm_crtc_index(crtc); |
cc4ceb48 DV |
280 | struct drm_crtc_state *crtc_state; |
281 | ||
7f4eaa89 ML |
282 | WARN_ON(!state->acquire_ctx); |
283 | ||
1b26a5e1 ML |
284 | crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); |
285 | if (crtc_state) | |
286 | return crtc_state; | |
cc4ceb48 DV |
287 | |
288 | ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx); | |
289 | if (ret) | |
290 | return ERR_PTR(ret); | |
291 | ||
292 | crtc_state = crtc->funcs->atomic_duplicate_state(crtc); | |
293 | if (!crtc_state) | |
294 | return ERR_PTR(-ENOMEM); | |
295 | ||
5d943aa6 | 296 | state->crtcs[index].state = crtc_state; |
581e49fe ML |
297 | state->crtcs[index].old_state = crtc->state; |
298 | state->crtcs[index].new_state = crtc_state; | |
5d943aa6 | 299 | state->crtcs[index].ptr = crtc; |
cc4ceb48 DV |
300 | crtc_state->state = state; |
301 | ||
fa3ab4c2 VS |
302 | DRM_DEBUG_ATOMIC("Added [CRTC:%d:%s] %p state to %p\n", |
303 | crtc->base.id, crtc->name, crtc_state, state); | |
cc4ceb48 DV |
304 | |
305 | return crtc_state; | |
306 | } | |
307 | EXPORT_SYMBOL(drm_atomic_get_crtc_state); | |
308 | ||
beaf5af4 | 309 | static void set_out_fence_for_crtc(struct drm_atomic_state *state, |
7e9081c5 | 310 | struct drm_crtc *crtc, s32 __user *fence_ptr) |
beaf5af4 GP |
311 | { |
312 | state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = fence_ptr; | |
313 | } | |
314 | ||
7e9081c5 | 315 | static s32 __user *get_out_fence_for_crtc(struct drm_atomic_state *state, |
beaf5af4 GP |
316 | struct drm_crtc *crtc) |
317 | { | |
7e9081c5 | 318 | s32 __user *fence_ptr; |
beaf5af4 GP |
319 | |
320 | fence_ptr = state->crtcs[drm_crtc_index(crtc)].out_fence_ptr; | |
321 | state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = NULL; | |
322 | ||
323 | return fence_ptr; | |
324 | } | |
325 | ||
819364da DS |
326 | /** |
327 | * drm_atomic_set_mode_for_crtc - set mode for CRTC | |
328 | * @state: the CRTC whose incoming state to update | |
329 | * @mode: kernel-internal mode to use for the CRTC, or NULL to disable | |
330 | * | |
cbef9099 DP |
331 | * Set a mode (originating from the kernel) on the desired CRTC state and update |
332 | * the enable property. | |
819364da DS |
333 | * |
334 | * RETURNS: | |
335 | * Zero on success, error code on failure. Cannot return -EDEADLK. | |
336 | */ | |
337 | int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, | |
91110a4b | 338 | const struct drm_display_mode *mode) |
819364da | 339 | { |
99cf4a29 DS |
340 | struct drm_mode_modeinfo umode; |
341 | ||
819364da DS |
342 | /* Early return for no change. */ |
343 | if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0) | |
344 | return 0; | |
345 | ||
6472e509 | 346 | drm_property_blob_put(state->mode_blob); |
99cf4a29 DS |
347 | state->mode_blob = NULL; |
348 | ||
819364da | 349 | if (mode) { |
99cf4a29 DS |
350 | drm_mode_convert_to_umode(&umode, mode); |
351 | state->mode_blob = | |
352 | drm_property_create_blob(state->crtc->dev, | |
353 | sizeof(umode), | |
354 | &umode); | |
355 | if (IS_ERR(state->mode_blob)) | |
356 | return PTR_ERR(state->mode_blob); | |
357 | ||
819364da DS |
358 | drm_mode_copy(&state->mode, mode); |
359 | state->enable = true; | |
360 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", | |
361 | mode->name, state); | |
362 | } else { | |
363 | memset(&state->mode, 0, sizeof(state->mode)); | |
364 | state->enable = false; | |
365 | DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n", | |
366 | state); | |
367 | } | |
368 | ||
369 | return 0; | |
370 | } | |
371 | EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); | |
372 | ||
955f3c33 DS |
373 | /** |
374 | * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC | |
375 | * @state: the CRTC whose incoming state to update | |
376 | * @blob: pointer to blob property to use for mode | |
377 | * | |
378 | * Set a mode (originating from a blob property) on the desired CRTC state. | |
379 | * This function will take a reference on the blob property for the CRTC state, | |
380 | * and release the reference held on the state's existing mode property, if any | |
381 | * was set. | |
382 | * | |
383 | * RETURNS: | |
384 | * Zero on success, error code on failure. Cannot return -EDEADLK. | |
385 | */ | |
386 | int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, | |
387 | struct drm_property_blob *blob) | |
388 | { | |
389 | if (blob == state->mode_blob) | |
390 | return 0; | |
391 | ||
6472e509 | 392 | drm_property_blob_put(state->mode_blob); |
955f3c33 DS |
393 | state->mode_blob = NULL; |
394 | ||
6709887c TV |
395 | memset(&state->mode, 0, sizeof(state->mode)); |
396 | ||
955f3c33 DS |
397 | if (blob) { |
398 | if (blob->length != sizeof(struct drm_mode_modeinfo) || | |
75a655e0 | 399 | drm_mode_convert_umode(state->crtc->dev, &state->mode, |
11b83e3f | 400 | blob->data)) |
955f3c33 DS |
401 | return -EINVAL; |
402 | ||
6472e509 | 403 | state->mode_blob = drm_property_blob_get(blob); |
955f3c33 DS |
404 | state->enable = true; |
405 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", | |
406 | state->mode.name, state); | |
407 | } else { | |
955f3c33 DS |
408 | state->enable = false; |
409 | DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n", | |
410 | state); | |
411 | } | |
412 | ||
413 | return 0; | |
414 | } | |
415 | EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc); | |
416 | ||
d2a24edb VS |
417 | /** |
418 | * drm_atomic_replace_property_blob_from_id - lookup the new blob and replace the old one with it | |
419 | * @dev: DRM device | |
420 | * @blob: a pointer to the member blob to be replaced | |
421 | * @blob_id: ID of the new blob | |
422 | * @expected_size: total expected size of the blob data (in bytes) | |
423 | * @expected_elem_size: expected element size of the blob data (in bytes) | |
424 | * @replaced: did the blob get replaced? | |
425 | * | |
426 | * Replace @blob with another blob with the ID @blob_id. If @blob_id is zero | |
427 | * @blob becomes NULL. | |
428 | * | |
429 | * If @expected_size is positive the new blob length is expected to be equal | |
430 | * to @expected_size bytes. If @expected_elem_size is positive the new blob | |
431 | * length is expected to be a multiple of @expected_elem_size bytes. Otherwise | |
432 | * an error is returned. | |
433 | * | |
434 | * @replaced will indicate to the caller whether the blob was replaced or not. | |
435 | * If the old and new blobs were in fact the same blob @replaced will be false | |
436 | * otherwise it will be true. | |
437 | * | |
438 | * RETURNS: | |
439 | * Zero on success, error code on failure. | |
440 | */ | |
5488dc16 | 441 | static int |
dafee60d | 442 | drm_atomic_replace_property_blob_from_id(struct drm_device *dev, |
5488dc16 LL |
443 | struct drm_property_blob **blob, |
444 | uint64_t blob_id, | |
445 | ssize_t expected_size, | |
d2a24edb | 446 | ssize_t expected_elem_size, |
5488dc16 LL |
447 | bool *replaced) |
448 | { | |
5488dc16 LL |
449 | struct drm_property_blob *new_blob = NULL; |
450 | ||
451 | if (blob_id != 0) { | |
dafee60d | 452 | new_blob = drm_property_lookup_blob(dev, blob_id); |
5488dc16 LL |
453 | if (new_blob == NULL) |
454 | return -EINVAL; | |
cac5fced | 455 | |
d2a24edb VS |
456 | if (expected_size > 0 && |
457 | new_blob->length != expected_size) { | |
458 | drm_property_blob_put(new_blob); | |
459 | return -EINVAL; | |
460 | } | |
461 | if (expected_elem_size > 0 && | |
462 | new_blob->length % expected_elem_size != 0) { | |
6472e509 | 463 | drm_property_blob_put(new_blob); |
5488dc16 | 464 | return -EINVAL; |
cac5fced | 465 | } |
5488dc16 LL |
466 | } |
467 | ||
5f057ffd | 468 | *replaced |= drm_property_replace_blob(blob, new_blob); |
6472e509 | 469 | drm_property_blob_put(new_blob); |
5488dc16 LL |
470 | |
471 | return 0; | |
472 | } | |
473 | ||
40ecc694 RC |
474 | /** |
475 | * drm_atomic_crtc_set_property - set property on CRTC | |
476 | * @crtc: the drm CRTC to set a property on | |
477 | * @state: the state object to update with the new property value | |
478 | * @property: the property to set | |
479 | * @val: the new property value | |
480 | * | |
d574528a DV |
481 | * This function handles generic/core properties and calls out to driver's |
482 | * &drm_crtc_funcs.atomic_set_property for driver properties. To ensure | |
483 | * consistent behavior you must call this function rather than the driver hook | |
484 | * directly. | |
40ecc694 RC |
485 | * |
486 | * RETURNS: | |
487 | * Zero on success, error code on failure | |
488 | */ | |
489 | int drm_atomic_crtc_set_property(struct drm_crtc *crtc, | |
490 | struct drm_crtc_state *state, struct drm_property *property, | |
491 | uint64_t val) | |
492 | { | |
eab3bbef DV |
493 | struct drm_device *dev = crtc->dev; |
494 | struct drm_mode_config *config = &dev->mode_config; | |
5488dc16 | 495 | bool replaced = false; |
955f3c33 | 496 | int ret; |
eab3bbef | 497 | |
27798365 | 498 | if (property == config->prop_active) |
eab3bbef | 499 | state->active = val; |
955f3c33 DS |
500 | else if (property == config->prop_mode_id) { |
501 | struct drm_property_blob *mode = | |
502 | drm_property_lookup_blob(dev, val); | |
503 | ret = drm_atomic_set_mode_prop_for_crtc(state, mode); | |
6472e509 | 504 | drm_property_blob_put(mode); |
955f3c33 | 505 | return ret; |
5488dc16 | 506 | } else if (property == config->degamma_lut_property) { |
dafee60d | 507 | ret = drm_atomic_replace_property_blob_from_id(dev, |
5488dc16 LL |
508 | &state->degamma_lut, |
509 | val, | |
d2a24edb | 510 | -1, sizeof(struct drm_color_lut), |
5488dc16 | 511 | &replaced); |
add1fa75 | 512 | state->color_mgmt_changed |= replaced; |
5488dc16 LL |
513 | return ret; |
514 | } else if (property == config->ctm_property) { | |
dafee60d | 515 | ret = drm_atomic_replace_property_blob_from_id(dev, |
5488dc16 LL |
516 | &state->ctm, |
517 | val, | |
d2a24edb | 518 | sizeof(struct drm_color_ctm), -1, |
5488dc16 | 519 | &replaced); |
add1fa75 | 520 | state->color_mgmt_changed |= replaced; |
5488dc16 LL |
521 | return ret; |
522 | } else if (property == config->gamma_lut_property) { | |
dafee60d | 523 | ret = drm_atomic_replace_property_blob_from_id(dev, |
5488dc16 LL |
524 | &state->gamma_lut, |
525 | val, | |
d2a24edb | 526 | -1, sizeof(struct drm_color_lut), |
5488dc16 | 527 | &replaced); |
add1fa75 | 528 | state->color_mgmt_changed |= replaced; |
5488dc16 | 529 | return ret; |
beaf5af4 | 530 | } else if (property == config->prop_out_fence_ptr) { |
7e9081c5 | 531 | s32 __user *fence_ptr = u64_to_user_ptr(val); |
beaf5af4 GP |
532 | |
533 | if (!fence_ptr) | |
534 | return 0; | |
535 | ||
536 | if (put_user(-1, fence_ptr)) | |
537 | return -EFAULT; | |
538 | ||
539 | set_out_fence_for_crtc(state->state, crtc, fence_ptr); | |
5488dc16 | 540 | } else if (crtc->funcs->atomic_set_property) |
40ecc694 | 541 | return crtc->funcs->atomic_set_property(crtc, state, property, val); |
27798365 DS |
542 | else |
543 | return -EINVAL; | |
544 | ||
545 | return 0; | |
40ecc694 RC |
546 | } |
547 | EXPORT_SYMBOL(drm_atomic_crtc_set_property); | |
548 | ||
c0714fc9 DV |
549 | /** |
550 | * drm_atomic_crtc_get_property - get property value from CRTC state | |
551 | * @crtc: the drm CRTC to set a property on | |
552 | * @state: the state object to get the property value from | |
553 | * @property: the property to set | |
554 | * @val: return location for the property value | |
555 | * | |
d574528a DV |
556 | * This function handles generic/core properties and calls out to driver's |
557 | * &drm_crtc_funcs.atomic_get_property for driver properties. To ensure | |
558 | * consistent behavior you must call this function rather than the driver hook | |
559 | * directly. | |
c0714fc9 DV |
560 | * |
561 | * RETURNS: | |
562 | * Zero on success, error code on failure | |
ac9c9256 | 563 | */ |
bf22f3be GT |
564 | static int |
565 | drm_atomic_crtc_get_property(struct drm_crtc *crtc, | |
ac9c9256 RC |
566 | const struct drm_crtc_state *state, |
567 | struct drm_property *property, uint64_t *val) | |
568 | { | |
8f164ce4 DS |
569 | struct drm_device *dev = crtc->dev; |
570 | struct drm_mode_config *config = &dev->mode_config; | |
571 | ||
572 | if (property == config->prop_active) | |
573 | *val = state->active; | |
955f3c33 DS |
574 | else if (property == config->prop_mode_id) |
575 | *val = (state->mode_blob) ? state->mode_blob->base.id : 0; | |
5488dc16 LL |
576 | else if (property == config->degamma_lut_property) |
577 | *val = (state->degamma_lut) ? state->degamma_lut->base.id : 0; | |
578 | else if (property == config->ctm_property) | |
579 | *val = (state->ctm) ? state->ctm->base.id : 0; | |
580 | else if (property == config->gamma_lut_property) | |
581 | *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0; | |
beaf5af4 GP |
582 | else if (property == config->prop_out_fence_ptr) |
583 | *val = 0; | |
8f164ce4 | 584 | else if (crtc->funcs->atomic_get_property) |
ac9c9256 | 585 | return crtc->funcs->atomic_get_property(crtc, state, property, val); |
8f164ce4 DS |
586 | else |
587 | return -EINVAL; | |
588 | ||
589 | return 0; | |
ac9c9256 | 590 | } |
ac9c9256 | 591 | |
5e743737 RC |
592 | /** |
593 | * drm_atomic_crtc_check - check crtc state | |
594 | * @crtc: crtc to check | |
595 | * @state: crtc state to check | |
596 | * | |
597 | * Provides core sanity checks for crtc state. | |
598 | * | |
599 | * RETURNS: | |
600 | * Zero on success, error code on failure | |
601 | */ | |
602 | static int drm_atomic_crtc_check(struct drm_crtc *crtc, | |
603 | struct drm_crtc_state *state) | |
604 | { | |
605 | /* NOTE: we explicitly don't enforce constraints such as primary | |
606 | * layer covering entire screen, since that is something we want | |
607 | * to allow (on hw that supports it). For hw that does not, it | |
608 | * should be checked in driver's crtc->atomic_check() vfunc. | |
609 | * | |
610 | * TODO: Add generic modeset state checks once we support those. | |
611 | */ | |
eab3bbef DV |
612 | |
613 | if (state->active && !state->enable) { | |
fa3ab4c2 VS |
614 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] active without enabled\n", |
615 | crtc->base.id, crtc->name); | |
eab3bbef DV |
616 | return -EINVAL; |
617 | } | |
618 | ||
99cf4a29 DS |
619 | /* The state->enable vs. state->mode_blob checks can be WARN_ON, |
620 | * as this is a kernel-internal detail that userspace should never | |
621 | * be able to trigger. */ | |
622 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && | |
623 | WARN_ON(state->enable && !state->mode_blob)) { | |
fa3ab4c2 VS |
624 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled without mode blob\n", |
625 | crtc->base.id, crtc->name); | |
99cf4a29 DS |
626 | return -EINVAL; |
627 | } | |
628 | ||
629 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && | |
630 | WARN_ON(!state->enable && state->mode_blob)) { | |
fa3ab4c2 VS |
631 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] disabled with mode blob\n", |
632 | crtc->base.id, crtc->name); | |
99cf4a29 DS |
633 | return -EINVAL; |
634 | } | |
635 | ||
4cba6850 DV |
636 | /* |
637 | * Reject event generation for when a CRTC is off and stays off. | |
638 | * It wouldn't be hard to implement this, but userspace has a track | |
639 | * record of happily burning through 100% cpu (or worse, crash) when the | |
640 | * display pipe is suspended. To avoid all that fun just reject updates | |
641 | * that ask for events since likely that indicates a bug in the | |
642 | * compositor's drawing loop. This is consistent with the vblank IOCTL | |
643 | * and legacy page_flip IOCTL which also reject service on a disabled | |
644 | * pipe. | |
645 | */ | |
646 | if (state->event && !state->active && !crtc->state->active) { | |
6ac7c548 RK |
647 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requesting event but off\n", |
648 | crtc->base.id, crtc->name); | |
4cba6850 DV |
649 | return -EINVAL; |
650 | } | |
651 | ||
5e743737 RC |
652 | return 0; |
653 | } | |
654 | ||
fceffb32 RC |
655 | static void drm_atomic_crtc_print_state(struct drm_printer *p, |
656 | const struct drm_crtc_state *state) | |
657 | { | |
658 | struct drm_crtc *crtc = state->crtc; | |
659 | ||
660 | drm_printf(p, "crtc[%u]: %s\n", crtc->base.id, crtc->name); | |
661 | drm_printf(p, "\tenable=%d\n", state->enable); | |
662 | drm_printf(p, "\tactive=%d\n", state->active); | |
663 | drm_printf(p, "\tplanes_changed=%d\n", state->planes_changed); | |
664 | drm_printf(p, "\tmode_changed=%d\n", state->mode_changed); | |
665 | drm_printf(p, "\tactive_changed=%d\n", state->active_changed); | |
666 | drm_printf(p, "\tconnectors_changed=%d\n", state->connectors_changed); | |
667 | drm_printf(p, "\tcolor_mgmt_changed=%d\n", state->color_mgmt_changed); | |
668 | drm_printf(p, "\tplane_mask=%x\n", state->plane_mask); | |
669 | drm_printf(p, "\tconnector_mask=%x\n", state->connector_mask); | |
670 | drm_printf(p, "\tencoder_mask=%x\n", state->encoder_mask); | |
671 | drm_printf(p, "\tmode: " DRM_MODE_FMT "\n", DRM_MODE_ARG(&state->mode)); | |
672 | ||
673 | if (crtc->funcs->atomic_print_state) | |
674 | crtc->funcs->atomic_print_state(p, state); | |
675 | } | |
676 | ||
cc4ceb48 DV |
677 | /** |
678 | * drm_atomic_get_plane_state - get plane state | |
679 | * @state: global atomic state object | |
680 | * @plane: plane to get state object for | |
681 | * | |
682 | * This function returns the plane state for the given plane, allocating it if | |
683 | * needed. It will also grab the relevant plane lock to make sure that the state | |
684 | * is consistent. | |
685 | * | |
686 | * Returns: | |
687 | * | |
688 | * Either the allocated state or the error code encoded into the pointer. When | |
689 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the | |
690 | * entire atomic sequence must be restarted. All other errors are fatal. | |
691 | */ | |
692 | struct drm_plane_state * | |
693 | drm_atomic_get_plane_state(struct drm_atomic_state *state, | |
694 | struct drm_plane *plane) | |
695 | { | |
1b26a5e1 | 696 | int ret, index = drm_plane_index(plane); |
cc4ceb48 DV |
697 | struct drm_plane_state *plane_state; |
698 | ||
7f4eaa89 ML |
699 | WARN_ON(!state->acquire_ctx); |
700 | ||
1b26a5e1 ML |
701 | plane_state = drm_atomic_get_existing_plane_state(state, plane); |
702 | if (plane_state) | |
703 | return plane_state; | |
cc4ceb48 | 704 | |
4d02e2de | 705 | ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx); |
cc4ceb48 DV |
706 | if (ret) |
707 | return ERR_PTR(ret); | |
708 | ||
709 | plane_state = plane->funcs->atomic_duplicate_state(plane); | |
710 | if (!plane_state) | |
711 | return ERR_PTR(-ENOMEM); | |
712 | ||
b8b5342b DV |
713 | state->planes[index].state = plane_state; |
714 | state->planes[index].ptr = plane; | |
581e49fe ML |
715 | state->planes[index].old_state = plane->state; |
716 | state->planes[index].new_state = plane_state; | |
cc4ceb48 DV |
717 | plane_state->state = state; |
718 | ||
9f4c97a2 VS |
719 | DRM_DEBUG_ATOMIC("Added [PLANE:%d:%s] %p state to %p\n", |
720 | plane->base.id, plane->name, plane_state, state); | |
cc4ceb48 DV |
721 | |
722 | if (plane_state->crtc) { | |
723 | struct drm_crtc_state *crtc_state; | |
724 | ||
725 | crtc_state = drm_atomic_get_crtc_state(state, | |
726 | plane_state->crtc); | |
727 | if (IS_ERR(crtc_state)) | |
728 | return ERR_CAST(crtc_state); | |
729 | } | |
730 | ||
731 | return plane_state; | |
732 | } | |
733 | EXPORT_SYMBOL(drm_atomic_get_plane_state); | |
734 | ||
40ecc694 RC |
735 | /** |
736 | * drm_atomic_plane_set_property - set property on plane | |
737 | * @plane: the drm plane to set a property on | |
738 | * @state: the state object to update with the new property value | |
739 | * @property: the property to set | |
740 | * @val: the new property value | |
741 | * | |
d574528a DV |
742 | * This function handles generic/core properties and calls out to driver's |
743 | * &drm_plane_funcs.atomic_set_property for driver properties. To ensure | |
744 | * consistent behavior you must call this function rather than the driver hook | |
745 | * directly. | |
40ecc694 RC |
746 | * |
747 | * RETURNS: | |
748 | * Zero on success, error code on failure | |
749 | */ | |
e90271bc | 750 | static int drm_atomic_plane_set_property(struct drm_plane *plane, |
40ecc694 RC |
751 | struct drm_plane_state *state, struct drm_property *property, |
752 | uint64_t val) | |
753 | { | |
6b4959f4 RC |
754 | struct drm_device *dev = plane->dev; |
755 | struct drm_mode_config *config = &dev->mode_config; | |
756 | ||
757 | if (property == config->prop_fb_id) { | |
418da172 | 758 | struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val); |
6b4959f4 RC |
759 | drm_atomic_set_fb_for_plane(state, fb); |
760 | if (fb) | |
a4a69da0 | 761 | drm_framebuffer_put(fb); |
96260142 GP |
762 | } else if (property == config->prop_in_fence_fd) { |
763 | if (state->fence) | |
764 | return -EINVAL; | |
765 | ||
766 | if (U642I64(val) == -1) | |
767 | return 0; | |
768 | ||
769 | state->fence = sync_file_get_fence(val); | |
770 | if (!state->fence) | |
771 | return -EINVAL; | |
772 | ||
6b4959f4 | 773 | } else if (property == config->prop_crtc_id) { |
418da172 | 774 | struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val); |
6b4959f4 RC |
775 | return drm_atomic_set_crtc_for_plane(state, crtc); |
776 | } else if (property == config->prop_crtc_x) { | |
777 | state->crtc_x = U642I64(val); | |
778 | } else if (property == config->prop_crtc_y) { | |
779 | state->crtc_y = U642I64(val); | |
780 | } else if (property == config->prop_crtc_w) { | |
781 | state->crtc_w = val; | |
782 | } else if (property == config->prop_crtc_h) { | |
783 | state->crtc_h = val; | |
784 | } else if (property == config->prop_src_x) { | |
785 | state->src_x = val; | |
786 | } else if (property == config->prop_src_y) { | |
787 | state->src_y = val; | |
788 | } else if (property == config->prop_src_w) { | |
789 | state->src_w = val; | |
790 | } else if (property == config->prop_src_h) { | |
791 | state->src_h = val; | |
6686df8c | 792 | } else if (property == plane->rotation_property) { |
c2c446ad | 793 | if (!is_power_of_2(val & DRM_MODE_ROTATE_MASK)) |
6e0c7c33 | 794 | return -EINVAL; |
1da30627 | 795 | state->rotation = val; |
44d1240d MS |
796 | } else if (property == plane->zpos_property) { |
797 | state->zpos = val; | |
80f690e9 JS |
798 | } else if (property == plane->color_encoding_property) { |
799 | state->color_encoding = val; | |
800 | } else if (property == plane->color_range_property) { | |
801 | state->color_range = val; | |
6b4959f4 RC |
802 | } else if (plane->funcs->atomic_set_property) { |
803 | return plane->funcs->atomic_set_property(plane, state, | |
804 | property, val); | |
805 | } else { | |
806 | return -EINVAL; | |
807 | } | |
808 | ||
809 | return 0; | |
40ecc694 | 810 | } |
40ecc694 | 811 | |
c0714fc9 DV |
812 | /** |
813 | * drm_atomic_plane_get_property - get property value from plane state | |
814 | * @plane: the drm plane to set a property on | |
815 | * @state: the state object to get the property value from | |
816 | * @property: the property to set | |
817 | * @val: return location for the property value | |
818 | * | |
d574528a DV |
819 | * This function handles generic/core properties and calls out to driver's |
820 | * &drm_plane_funcs.atomic_get_property for driver properties. To ensure | |
821 | * consistent behavior you must call this function rather than the driver hook | |
822 | * directly. | |
c0714fc9 DV |
823 | * |
824 | * RETURNS: | |
825 | * Zero on success, error code on failure | |
ac9c9256 | 826 | */ |
a97df1cc DV |
827 | static int |
828 | drm_atomic_plane_get_property(struct drm_plane *plane, | |
ac9c9256 RC |
829 | const struct drm_plane_state *state, |
830 | struct drm_property *property, uint64_t *val) | |
831 | { | |
6b4959f4 RC |
832 | struct drm_device *dev = plane->dev; |
833 | struct drm_mode_config *config = &dev->mode_config; | |
834 | ||
835 | if (property == config->prop_fb_id) { | |
836 | *val = (state->fb) ? state->fb->base.id : 0; | |
96260142 GP |
837 | } else if (property == config->prop_in_fence_fd) { |
838 | *val = -1; | |
6b4959f4 RC |
839 | } else if (property == config->prop_crtc_id) { |
840 | *val = (state->crtc) ? state->crtc->base.id : 0; | |
841 | } else if (property == config->prop_crtc_x) { | |
842 | *val = I642U64(state->crtc_x); | |
843 | } else if (property == config->prop_crtc_y) { | |
844 | *val = I642U64(state->crtc_y); | |
845 | } else if (property == config->prop_crtc_w) { | |
846 | *val = state->crtc_w; | |
847 | } else if (property == config->prop_crtc_h) { | |
848 | *val = state->crtc_h; | |
849 | } else if (property == config->prop_src_x) { | |
850 | *val = state->src_x; | |
851 | } else if (property == config->prop_src_y) { | |
852 | *val = state->src_y; | |
853 | } else if (property == config->prop_src_w) { | |
854 | *val = state->src_w; | |
855 | } else if (property == config->prop_src_h) { | |
856 | *val = state->src_h; | |
6686df8c | 857 | } else if (property == plane->rotation_property) { |
4cda09ca | 858 | *val = state->rotation; |
44d1240d MS |
859 | } else if (property == plane->zpos_property) { |
860 | *val = state->zpos; | |
80f690e9 JS |
861 | } else if (property == plane->color_encoding_property) { |
862 | *val = state->color_encoding; | |
863 | } else if (property == plane->color_range_property) { | |
864 | *val = state->color_range; | |
6b4959f4 | 865 | } else if (plane->funcs->atomic_get_property) { |
ac9c9256 | 866 | return plane->funcs->atomic_get_property(plane, state, property, val); |
6b4959f4 RC |
867 | } else { |
868 | return -EINVAL; | |
869 | } | |
870 | ||
871 | return 0; | |
ac9c9256 | 872 | } |
ac9c9256 | 873 | |
f8aeb41c DV |
874 | static bool |
875 | plane_switching_crtc(struct drm_atomic_state *state, | |
876 | struct drm_plane *plane, | |
877 | struct drm_plane_state *plane_state) | |
878 | { | |
879 | if (!plane->state->crtc || !plane_state->crtc) | |
880 | return false; | |
881 | ||
882 | if (plane->state->crtc == plane_state->crtc) | |
883 | return false; | |
884 | ||
885 | /* This could be refined, but currently there's no helper or driver code | |
886 | * to implement direct switching of active planes nor userspace to take | |
887 | * advantage of more direct plane switching without the intermediate | |
888 | * full OFF state. | |
889 | */ | |
890 | return true; | |
891 | } | |
892 | ||
5e743737 RC |
893 | /** |
894 | * drm_atomic_plane_check - check plane state | |
895 | * @plane: plane to check | |
896 | * @state: plane state to check | |
897 | * | |
898 | * Provides core sanity checks for plane state. | |
899 | * | |
900 | * RETURNS: | |
901 | * Zero on success, error code on failure | |
902 | */ | |
903 | static int drm_atomic_plane_check(struct drm_plane *plane, | |
904 | struct drm_plane_state *state) | |
905 | { | |
906 | unsigned int fb_width, fb_height; | |
ead8610d | 907 | int ret; |
5e743737 RC |
908 | |
909 | /* either *both* CRTC and FB must be set, or neither */ | |
fa5aaeec | 910 | if (state->crtc && !state->fb) { |
17a38d9c | 911 | DRM_DEBUG_ATOMIC("CRTC set but no FB\n"); |
5e743737 | 912 | return -EINVAL; |
fa5aaeec | 913 | } else if (state->fb && !state->crtc) { |
17a38d9c | 914 | DRM_DEBUG_ATOMIC("FB set but no CRTC\n"); |
5e743737 RC |
915 | return -EINVAL; |
916 | } | |
917 | ||
918 | /* if disabled, we don't care about the rest of the state: */ | |
919 | if (!state->crtc) | |
920 | return 0; | |
921 | ||
922 | /* Check whether this plane is usable on this CRTC */ | |
923 | if (!(plane->possible_crtcs & drm_crtc_mask(state->crtc))) { | |
17a38d9c | 924 | DRM_DEBUG_ATOMIC("Invalid crtc for plane\n"); |
5e743737 RC |
925 | return -EINVAL; |
926 | } | |
927 | ||
928 | /* Check whether this plane supports the fb pixel format. */ | |
23163a7d VS |
929 | ret = drm_plane_check_pixel_format(plane, state->fb->format->format, |
930 | state->fb->modifier); | |
ead8610d | 931 | if (ret) { |
b3c11ac2 | 932 | struct drm_format_name_buf format_name; |
23163a7d VS |
933 | DRM_DEBUG_ATOMIC("Invalid pixel format %s, modifier 0x%llx\n", |
934 | drm_get_format_name(state->fb->format->format, | |
935 | &format_name), | |
936 | state->fb->modifier); | |
ead8610d | 937 | return ret; |
5e743737 RC |
938 | } |
939 | ||
940 | /* Give drivers some help against integer overflows */ | |
941 | if (state->crtc_w > INT_MAX || | |
942 | state->crtc_x > INT_MAX - (int32_t) state->crtc_w || | |
943 | state->crtc_h > INT_MAX || | |
944 | state->crtc_y > INT_MAX - (int32_t) state->crtc_h) { | |
17a38d9c DV |
945 | DRM_DEBUG_ATOMIC("Invalid CRTC coordinates %ux%u+%d+%d\n", |
946 | state->crtc_w, state->crtc_h, | |
947 | state->crtc_x, state->crtc_y); | |
5e743737 RC |
948 | return -ERANGE; |
949 | } | |
950 | ||
951 | fb_width = state->fb->width << 16; | |
952 | fb_height = state->fb->height << 16; | |
953 | ||
954 | /* Make sure source coordinates are inside the fb. */ | |
955 | if (state->src_w > fb_width || | |
956 | state->src_x > fb_width - state->src_w || | |
957 | state->src_h > fb_height || | |
958 | state->src_y > fb_height - state->src_h) { | |
17a38d9c | 959 | DRM_DEBUG_ATOMIC("Invalid source coordinates " |
0338f0d0 | 960 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u (fb %ux%u)\n", |
17a38d9c DV |
961 | state->src_w >> 16, ((state->src_w & 0xffff) * 15625) >> 10, |
962 | state->src_h >> 16, ((state->src_h & 0xffff) * 15625) >> 10, | |
963 | state->src_x >> 16, ((state->src_x & 0xffff) * 15625) >> 10, | |
0338f0d0 VS |
964 | state->src_y >> 16, ((state->src_y & 0xffff) * 15625) >> 10, |
965 | state->fb->width, state->fb->height); | |
5e743737 RC |
966 | return -ENOSPC; |
967 | } | |
968 | ||
f8aeb41c | 969 | if (plane_switching_crtc(state->state, plane, state)) { |
9f4c97a2 VS |
970 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] switching CRTC directly\n", |
971 | plane->base.id, plane->name); | |
f8aeb41c DV |
972 | return -EINVAL; |
973 | } | |
974 | ||
5e743737 RC |
975 | return 0; |
976 | } | |
977 | ||
fceffb32 RC |
978 | static void drm_atomic_plane_print_state(struct drm_printer *p, |
979 | const struct drm_plane_state *state) | |
980 | { | |
981 | struct drm_plane *plane = state->plane; | |
982 | struct drm_rect src = drm_plane_state_src(state); | |
983 | struct drm_rect dest = drm_plane_state_dest(state); | |
984 | ||
985 | drm_printf(p, "plane[%u]: %s\n", plane->base.id, plane->name); | |
986 | drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)"); | |
987 | drm_printf(p, "\tfb=%u\n", state->fb ? state->fb->base.id : 0); | |
f02b604b NT |
988 | if (state->fb) |
989 | drm_framebuffer_print_info(p, 2, state->fb); | |
fceffb32 RC |
990 | drm_printf(p, "\tcrtc-pos=" DRM_RECT_FMT "\n", DRM_RECT_ARG(&dest)); |
991 | drm_printf(p, "\tsrc-pos=" DRM_RECT_FP_FMT "\n", DRM_RECT_FP_ARG(&src)); | |
992 | drm_printf(p, "\trotation=%x\n", state->rotation); | |
56dbbaff VS |
993 | drm_printf(p, "\tcolor-encoding=%s\n", |
994 | drm_get_color_encoding_name(state->color_encoding)); | |
995 | drm_printf(p, "\tcolor-range=%s\n", | |
996 | drm_get_color_range_name(state->color_range)); | |
fceffb32 RC |
997 | |
998 | if (plane->funcs->atomic_print_state) | |
999 | plane->funcs->atomic_print_state(p, state); | |
1000 | } | |
1001 | ||
da6c0596 DV |
1002 | /** |
1003 | * DOC: handling driver private state | |
1004 | * | |
1005 | * Very often the DRM objects exposed to userspace in the atomic modeset api | |
1006 | * (&drm_connector, &drm_crtc and &drm_plane) do not map neatly to the | |
1007 | * underlying hardware. Especially for any kind of shared resources (e.g. shared | |
1008 | * clocks, scaler units, bandwidth and fifo limits shared among a group of | |
1009 | * planes or CRTCs, and so on) it makes sense to model these as independent | |
1010 | * objects. Drivers then need to do similar state tracking and commit ordering for | |
1011 | * such private (since not exposed to userpace) objects as the atomic core and | |
1012 | * helpers already provide for connectors, planes and CRTCs. | |
1013 | * | |
1014 | * To make this easier on drivers the atomic core provides some support to track | |
1015 | * driver private state objects using struct &drm_private_obj, with the | |
1016 | * associated state struct &drm_private_state. | |
1017 | * | |
1018 | * Similar to userspace-exposed objects, private state structures can be | |
1019 | * acquired by calling drm_atomic_get_private_obj_state(). Since this function | |
1020 | * does not take care of locking, drivers should wrap it for each type of | |
1021 | * private state object they have with the required call to drm_modeset_lock() | |
1022 | * for the corresponding &drm_modeset_lock. | |
1023 | * | |
1024 | * All private state structures contained in a &drm_atomic_state update can be | |
1025 | * iterated using for_each_oldnew_private_obj_in_state(), | |
1026 | * for_each_new_private_obj_in_state() and for_each_old_private_obj_in_state(). | |
1027 | * Drivers are recommended to wrap these for each type of driver private state | |
1028 | * object they have, filtering on &drm_private_obj.funcs using for_each_if(), at | |
1029 | * least if they want to iterate over all objects of a given type. | |
1030 | * | |
1031 | * An earlier way to handle driver private state was by subclassing struct | |
1032 | * &drm_atomic_state. But since that encourages non-standard ways to implement | |
1033 | * the check/commit split atomic requires (by using e.g. "check and rollback or | |
1034 | * commit instead" of "duplicate state, check, then either commit or release | |
1035 | * duplicated state) it is deprecated in favour of using &drm_private_state. | |
1036 | */ | |
1037 | ||
a4370c77 VS |
1038 | /** |
1039 | * drm_atomic_private_obj_init - initialize private object | |
1040 | * @obj: private object | |
1041 | * @state: initial private object state | |
1042 | * @funcs: pointer to the struct of function pointers that identify the object | |
1043 | * type | |
1044 | * | |
1045 | * Initialize the private object, which can be embedded into any | |
1046 | * driver private object that needs its own atomic state. | |
1047 | */ | |
1048 | void | |
1049 | drm_atomic_private_obj_init(struct drm_private_obj *obj, | |
1050 | struct drm_private_state *state, | |
1051 | const struct drm_private_state_funcs *funcs) | |
1052 | { | |
1053 | memset(obj, 0, sizeof(*obj)); | |
1054 | ||
1055 | obj->state = state; | |
1056 | obj->funcs = funcs; | |
1057 | } | |
1058 | EXPORT_SYMBOL(drm_atomic_private_obj_init); | |
1059 | ||
1060 | /** | |
1061 | * drm_atomic_private_obj_fini - finalize private object | |
1062 | * @obj: private object | |
1063 | * | |
1064 | * Finalize the private object. | |
1065 | */ | |
1066 | void | |
1067 | drm_atomic_private_obj_fini(struct drm_private_obj *obj) | |
1068 | { | |
1069 | obj->funcs->atomic_destroy_state(obj, obj->state); | |
1070 | } | |
1071 | EXPORT_SYMBOL(drm_atomic_private_obj_fini); | |
1072 | ||
b430c27a PD |
1073 | /** |
1074 | * drm_atomic_get_private_obj_state - get private object state | |
1075 | * @state: global atomic state | |
1076 | * @obj: private object to get the state for | |
b430c27a PD |
1077 | * |
1078 | * This function returns the private object state for the given private object, | |
1079 | * allocating the state if needed. It does not grab any locks as the caller is | |
1080 | * expected to care of any required locking. | |
1081 | * | |
1082 | * RETURNS: | |
1083 | * | |
1084 | * Either the allocated state or the error code encoded into a pointer. | |
1085 | */ | |
a4370c77 VS |
1086 | struct drm_private_state * |
1087 | drm_atomic_get_private_obj_state(struct drm_atomic_state *state, | |
1088 | struct drm_private_obj *obj) | |
b430c27a PD |
1089 | { |
1090 | int index, num_objs, i; | |
1091 | size_t size; | |
1092 | struct __drm_private_objs_state *arr; | |
a4370c77 | 1093 | struct drm_private_state *obj_state; |
b430c27a PD |
1094 | |
1095 | for (i = 0; i < state->num_private_objs; i++) | |
a4370c77 VS |
1096 | if (obj == state->private_objs[i].ptr) |
1097 | return state->private_objs[i].state; | |
b430c27a PD |
1098 | |
1099 | num_objs = state->num_private_objs + 1; | |
1100 | size = sizeof(*state->private_objs) * num_objs; | |
1101 | arr = krealloc(state->private_objs, size, GFP_KERNEL); | |
1102 | if (!arr) | |
1103 | return ERR_PTR(-ENOMEM); | |
1104 | ||
1105 | state->private_objs = arr; | |
1106 | index = state->num_private_objs; | |
1107 | memset(&state->private_objs[index], 0, sizeof(*state->private_objs)); | |
1108 | ||
a4370c77 VS |
1109 | obj_state = obj->funcs->atomic_duplicate_state(obj); |
1110 | if (!obj_state) | |
b430c27a PD |
1111 | return ERR_PTR(-ENOMEM); |
1112 | ||
a4370c77 VS |
1113 | state->private_objs[index].state = obj_state; |
1114 | state->private_objs[index].old_state = obj->state; | |
1115 | state->private_objs[index].new_state = obj_state; | |
1116 | state->private_objs[index].ptr = obj; | |
1117 | ||
b430c27a PD |
1118 | state->num_private_objs = num_objs; |
1119 | ||
a4370c77 VS |
1120 | DRM_DEBUG_ATOMIC("Added new private object %p state %p to %p\n", |
1121 | obj, obj_state, state); | |
b430c27a | 1122 | |
a4370c77 | 1123 | return obj_state; |
b430c27a PD |
1124 | } |
1125 | EXPORT_SYMBOL(drm_atomic_get_private_obj_state); | |
1126 | ||
cc4ceb48 DV |
1127 | /** |
1128 | * drm_atomic_get_connector_state - get connector state | |
1129 | * @state: global atomic state object | |
1130 | * @connector: connector to get state object for | |
1131 | * | |
1132 | * This function returns the connector state for the given connector, | |
1133 | * allocating it if needed. It will also grab the relevant connector lock to | |
1134 | * make sure that the state is consistent. | |
1135 | * | |
1136 | * Returns: | |
1137 | * | |
1138 | * Either the allocated state or the error code encoded into the pointer. When | |
1139 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the | |
1140 | * entire atomic sequence must be restarted. All other errors are fatal. | |
1141 | */ | |
1142 | struct drm_connector_state * | |
1143 | drm_atomic_get_connector_state(struct drm_atomic_state *state, | |
1144 | struct drm_connector *connector) | |
1145 | { | |
1146 | int ret, index; | |
1147 | struct drm_mode_config *config = &connector->dev->mode_config; | |
1148 | struct drm_connector_state *connector_state; | |
1149 | ||
7f4eaa89 ML |
1150 | WARN_ON(!state->acquire_ctx); |
1151 | ||
c7eb76f4 DV |
1152 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
1153 | if (ret) | |
1154 | return ERR_PTR(ret); | |
1155 | ||
cc4ceb48 DV |
1156 | index = drm_connector_index(connector); |
1157 | ||
f52b69f1 | 1158 | if (index >= state->num_connector) { |
63e83c1d | 1159 | struct __drm_connnectors_state *c; |
5fff80bb ML |
1160 | int alloc = max(index + 1, config->num_connector); |
1161 | ||
1162 | c = krealloc(state->connectors, alloc * sizeof(*state->connectors), GFP_KERNEL); | |
1163 | if (!c) | |
1164 | return ERR_PTR(-ENOMEM); | |
1165 | ||
1166 | state->connectors = c; | |
1167 | memset(&state->connectors[state->num_connector], 0, | |
1168 | sizeof(*state->connectors) * (alloc - state->num_connector)); | |
1169 | ||
5fff80bb | 1170 | state->num_connector = alloc; |
f52b69f1 DV |
1171 | } |
1172 | ||
63e83c1d DV |
1173 | if (state->connectors[index].state) |
1174 | return state->connectors[index].state; | |
cc4ceb48 | 1175 | |
cc4ceb48 DV |
1176 | connector_state = connector->funcs->atomic_duplicate_state(connector); |
1177 | if (!connector_state) | |
1178 | return ERR_PTR(-ENOMEM); | |
1179 | ||
ad093607 | 1180 | drm_connector_get(connector); |
63e83c1d | 1181 | state->connectors[index].state = connector_state; |
581e49fe ML |
1182 | state->connectors[index].old_state = connector->state; |
1183 | state->connectors[index].new_state = connector_state; | |
63e83c1d | 1184 | state->connectors[index].ptr = connector; |
cc4ceb48 DV |
1185 | connector_state->state = state; |
1186 | ||
6ac7c548 RK |
1187 | DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d:%s] %p state to %p\n", |
1188 | connector->base.id, connector->name, | |
1189 | connector_state, state); | |
cc4ceb48 DV |
1190 | |
1191 | if (connector_state->crtc) { | |
1192 | struct drm_crtc_state *crtc_state; | |
1193 | ||
1194 | crtc_state = drm_atomic_get_crtc_state(state, | |
1195 | connector_state->crtc); | |
1196 | if (IS_ERR(crtc_state)) | |
1197 | return ERR_CAST(crtc_state); | |
1198 | } | |
1199 | ||
1200 | return connector_state; | |
1201 | } | |
1202 | EXPORT_SYMBOL(drm_atomic_get_connector_state); | |
1203 | ||
40ecc694 RC |
1204 | /** |
1205 | * drm_atomic_connector_set_property - set property on connector. | |
1206 | * @connector: the drm connector to set a property on | |
1207 | * @state: the state object to update with the new property value | |
1208 | * @property: the property to set | |
1209 | * @val: the new property value | |
1210 | * | |
d574528a DV |
1211 | * This function handles generic/core properties and calls out to driver's |
1212 | * &drm_connector_funcs.atomic_set_property for driver properties. To ensure | |
1213 | * consistent behavior you must call this function rather than the driver hook | |
1214 | * directly. | |
40ecc694 RC |
1215 | * |
1216 | * RETURNS: | |
1217 | * Zero on success, error code on failure | |
1218 | */ | |
482b0e3c | 1219 | static int drm_atomic_connector_set_property(struct drm_connector *connector, |
40ecc694 RC |
1220 | struct drm_connector_state *state, struct drm_property *property, |
1221 | uint64_t val) | |
1222 | { | |
1223 | struct drm_device *dev = connector->dev; | |
1224 | struct drm_mode_config *config = &dev->mode_config; | |
1225 | ||
ae16c597 | 1226 | if (property == config->prop_crtc_id) { |
418da172 | 1227 | struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val); |
ae16c597 RC |
1228 | return drm_atomic_set_crtc_for_connector(state, crtc); |
1229 | } else if (property == config->dpms_property) { | |
40ecc694 RC |
1230 | /* setting DPMS property requires special handling, which |
1231 | * is done in legacy setprop path for us. Disallow (for | |
1232 | * now?) atomic writes to DPMS property: | |
1233 | */ | |
1234 | return -EINVAL; | |
299a16b1 BB |
1235 | } else if (property == config->tv_select_subconnector_property) { |
1236 | state->tv.subconnector = val; | |
1237 | } else if (property == config->tv_left_margin_property) { | |
1238 | state->tv.margins.left = val; | |
1239 | } else if (property == config->tv_right_margin_property) { | |
1240 | state->tv.margins.right = val; | |
1241 | } else if (property == config->tv_top_margin_property) { | |
1242 | state->tv.margins.top = val; | |
1243 | } else if (property == config->tv_bottom_margin_property) { | |
1244 | state->tv.margins.bottom = val; | |
1245 | } else if (property == config->tv_mode_property) { | |
1246 | state->tv.mode = val; | |
1247 | } else if (property == config->tv_brightness_property) { | |
1248 | state->tv.brightness = val; | |
1249 | } else if (property == config->tv_contrast_property) { | |
1250 | state->tv.contrast = val; | |
1251 | } else if (property == config->tv_flicker_reduction_property) { | |
1252 | state->tv.flicker_reduction = val; | |
1253 | } else if (property == config->tv_overscan_property) { | |
1254 | state->tv.overscan = val; | |
1255 | } else if (property == config->tv_saturation_property) { | |
1256 | state->tv.saturation = val; | |
1257 | } else if (property == config->tv_hue_property) { | |
1258 | state->tv.hue = val; | |
40ee6fbe MN |
1259 | } else if (property == config->link_status_property) { |
1260 | /* Never downgrade from GOOD to BAD on userspace's request here, | |
1261 | * only hw issues can do that. | |
1262 | * | |
1263 | * For an atomic property the userspace doesn't need to be able | |
1264 | * to understand all the properties, but needs to be able to | |
1265 | * restore the state it wants on VT switch. So if the userspace | |
1266 | * tries to change the link_status from GOOD to BAD, driver | |
1267 | * silently rejects it and returns a 0. This prevents userspace | |
1268 | * from accidently breaking the display when it restores the | |
1269 | * state. | |
1270 | */ | |
1271 | if (state->link_status != DRM_LINK_STATUS_GOOD) | |
1272 | state->link_status = val; | |
0e9f25d0 ML |
1273 | } else if (property == config->aspect_ratio_property) { |
1274 | state->picture_aspect_ratio = val; | |
8f6e1e22 ML |
1275 | } else if (property == connector->scaling_mode_property) { |
1276 | state->scaling_mode = val; | |
24557865 SP |
1277 | } else if (property == connector->content_protection_property) { |
1278 | if (val == DRM_MODE_CONTENT_PROTECTION_ENABLED) { | |
1279 | DRM_DEBUG_KMS("only drivers can set CP Enabled\n"); | |
1280 | return -EINVAL; | |
1281 | } | |
1282 | state->content_protection = val; | |
40ecc694 RC |
1283 | } else if (connector->funcs->atomic_set_property) { |
1284 | return connector->funcs->atomic_set_property(connector, | |
1285 | state, property, val); | |
1286 | } else { | |
1287 | return -EINVAL; | |
1288 | } | |
299a16b1 BB |
1289 | |
1290 | return 0; | |
40ecc694 | 1291 | } |
40ecc694 | 1292 | |
fceffb32 RC |
1293 | static void drm_atomic_connector_print_state(struct drm_printer *p, |
1294 | const struct drm_connector_state *state) | |
1295 | { | |
1296 | struct drm_connector *connector = state->connector; | |
1297 | ||
1298 | drm_printf(p, "connector[%u]: %s\n", connector->base.id, connector->name); | |
1299 | drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)"); | |
1300 | ||
1301 | if (connector->funcs->atomic_print_state) | |
1302 | connector->funcs->atomic_print_state(p, state); | |
1303 | } | |
1304 | ||
c0714fc9 DV |
1305 | /** |
1306 | * drm_atomic_connector_get_property - get property value from connector state | |
1307 | * @connector: the drm connector to set a property on | |
1308 | * @state: the state object to get the property value from | |
1309 | * @property: the property to set | |
1310 | * @val: return location for the property value | |
1311 | * | |
d574528a DV |
1312 | * This function handles generic/core properties and calls out to driver's |
1313 | * &drm_connector_funcs.atomic_get_property for driver properties. To ensure | |
1314 | * consistent behavior you must call this function rather than the driver hook | |
1315 | * directly. | |
c0714fc9 DV |
1316 | * |
1317 | * RETURNS: | |
1318 | * Zero on success, error code on failure | |
ac9c9256 | 1319 | */ |
a97df1cc DV |
1320 | static int |
1321 | drm_atomic_connector_get_property(struct drm_connector *connector, | |
ac9c9256 RC |
1322 | const struct drm_connector_state *state, |
1323 | struct drm_property *property, uint64_t *val) | |
1324 | { | |
1325 | struct drm_device *dev = connector->dev; | |
1326 | struct drm_mode_config *config = &dev->mode_config; | |
1327 | ||
ae16c597 RC |
1328 | if (property == config->prop_crtc_id) { |
1329 | *val = (state->crtc) ? state->crtc->base.id : 0; | |
1330 | } else if (property == config->dpms_property) { | |
ac9c9256 | 1331 | *val = connector->dpms; |
299a16b1 BB |
1332 | } else if (property == config->tv_select_subconnector_property) { |
1333 | *val = state->tv.subconnector; | |
1334 | } else if (property == config->tv_left_margin_property) { | |
1335 | *val = state->tv.margins.left; | |
1336 | } else if (property == config->tv_right_margin_property) { | |
1337 | *val = state->tv.margins.right; | |
1338 | } else if (property == config->tv_top_margin_property) { | |
1339 | *val = state->tv.margins.top; | |
1340 | } else if (property == config->tv_bottom_margin_property) { | |
1341 | *val = state->tv.margins.bottom; | |
1342 | } else if (property == config->tv_mode_property) { | |
1343 | *val = state->tv.mode; | |
1344 | } else if (property == config->tv_brightness_property) { | |
1345 | *val = state->tv.brightness; | |
1346 | } else if (property == config->tv_contrast_property) { | |
1347 | *val = state->tv.contrast; | |
1348 | } else if (property == config->tv_flicker_reduction_property) { | |
1349 | *val = state->tv.flicker_reduction; | |
1350 | } else if (property == config->tv_overscan_property) { | |
1351 | *val = state->tv.overscan; | |
1352 | } else if (property == config->tv_saturation_property) { | |
1353 | *val = state->tv.saturation; | |
1354 | } else if (property == config->tv_hue_property) { | |
1355 | *val = state->tv.hue; | |
40ee6fbe MN |
1356 | } else if (property == config->link_status_property) { |
1357 | *val = state->link_status; | |
0e9f25d0 ML |
1358 | } else if (property == config->aspect_ratio_property) { |
1359 | *val = state->picture_aspect_ratio; | |
8f6e1e22 ML |
1360 | } else if (property == connector->scaling_mode_property) { |
1361 | *val = state->scaling_mode; | |
24557865 SP |
1362 | } else if (property == connector->content_protection_property) { |
1363 | *val = state->content_protection; | |
ac9c9256 RC |
1364 | } else if (connector->funcs->atomic_get_property) { |
1365 | return connector->funcs->atomic_get_property(connector, | |
1366 | state, property, val); | |
1367 | } else { | |
1368 | return -EINVAL; | |
1369 | } | |
1370 | ||
1371 | return 0; | |
1372 | } | |
ac9c9256 | 1373 | |
88a48e29 RC |
1374 | int drm_atomic_get_property(struct drm_mode_object *obj, |
1375 | struct drm_property *property, uint64_t *val) | |
1376 | { | |
1377 | struct drm_device *dev = property->dev; | |
1378 | int ret; | |
1379 | ||
1380 | switch (obj->type) { | |
1381 | case DRM_MODE_OBJECT_CONNECTOR: { | |
1382 | struct drm_connector *connector = obj_to_connector(obj); | |
1383 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); | |
1384 | ret = drm_atomic_connector_get_property(connector, | |
1385 | connector->state, property, val); | |
1386 | break; | |
1387 | } | |
1388 | case DRM_MODE_OBJECT_CRTC: { | |
1389 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
1390 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); | |
1391 | ret = drm_atomic_crtc_get_property(crtc, | |
1392 | crtc->state, property, val); | |
1393 | break; | |
1394 | } | |
1395 | case DRM_MODE_OBJECT_PLANE: { | |
1396 | struct drm_plane *plane = obj_to_plane(obj); | |
1397 | WARN_ON(!drm_modeset_is_locked(&plane->mutex)); | |
1398 | ret = drm_atomic_plane_get_property(plane, | |
1399 | plane->state, property, val); | |
1400 | break; | |
1401 | } | |
1402 | default: | |
1403 | ret = -EINVAL; | |
1404 | break; | |
1405 | } | |
1406 | ||
1407 | return ret; | |
1408 | } | |
1409 | ||
cc4ceb48 DV |
1410 | /** |
1411 | * drm_atomic_set_crtc_for_plane - set crtc for plane | |
07cc0ef6 | 1412 | * @plane_state: the plane whose incoming state to update |
cc4ceb48 DV |
1413 | * @crtc: crtc to use for the plane |
1414 | * | |
1415 | * Changing the assigned crtc for a plane requires us to grab the lock and state | |
1416 | * for the new crtc, as needed. This function takes care of all these details | |
1417 | * besides updating the pointer in the state object itself. | |
1418 | * | |
1419 | * Returns: | |
1420 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1421 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1422 | * sequence must be restarted. All other errors are fatal. | |
1423 | */ | |
1424 | int | |
07cc0ef6 DV |
1425 | drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, |
1426 | struct drm_crtc *crtc) | |
cc4ceb48 | 1427 | { |
07cc0ef6 | 1428 | struct drm_plane *plane = plane_state->plane; |
cc4ceb48 DV |
1429 | struct drm_crtc_state *crtc_state; |
1430 | ||
6ddd388a RC |
1431 | if (plane_state->crtc) { |
1432 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, | |
1433 | plane_state->crtc); | |
1434 | if (WARN_ON(IS_ERR(crtc_state))) | |
1435 | return PTR_ERR(crtc_state); | |
1436 | ||
1437 | crtc_state->plane_mask &= ~(1 << drm_plane_index(plane)); | |
1438 | } | |
1439 | ||
1440 | plane_state->crtc = crtc; | |
1441 | ||
cc4ceb48 DV |
1442 | if (crtc) { |
1443 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, | |
1444 | crtc); | |
1445 | if (IS_ERR(crtc_state)) | |
1446 | return PTR_ERR(crtc_state); | |
6ddd388a | 1447 | crtc_state->plane_mask |= (1 << drm_plane_index(plane)); |
cc4ceb48 DV |
1448 | } |
1449 | ||
cc4ceb48 | 1450 | if (crtc) |
fa3ab4c2 VS |
1451 | DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d:%s]\n", |
1452 | plane_state, crtc->base.id, crtc->name); | |
cc4ceb48 | 1453 | else |
17a38d9c DV |
1454 | DRM_DEBUG_ATOMIC("Link plane state %p to [NOCRTC]\n", |
1455 | plane_state); | |
cc4ceb48 DV |
1456 | |
1457 | return 0; | |
1458 | } | |
1459 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane); | |
1460 | ||
321ebf04 | 1461 | /** |
16d78bc2 | 1462 | * drm_atomic_set_fb_for_plane - set framebuffer for plane |
321ebf04 DV |
1463 | * @plane_state: atomic state object for the plane |
1464 | * @fb: fb to use for the plane | |
1465 | * | |
1466 | * Changing the assigned framebuffer for a plane requires us to grab a reference | |
1467 | * to the new fb and drop the reference to the old fb, if there is one. This | |
1468 | * function takes care of all these details besides updating the pointer in the | |
1469 | * state object itself. | |
1470 | */ | |
1471 | void | |
1472 | drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state, | |
1473 | struct drm_framebuffer *fb) | |
1474 | { | |
321ebf04 | 1475 | if (fb) |
17a38d9c DV |
1476 | DRM_DEBUG_ATOMIC("Set [FB:%d] for plane state %p\n", |
1477 | fb->base.id, plane_state); | |
321ebf04 | 1478 | else |
17a38d9c DV |
1479 | DRM_DEBUG_ATOMIC("Set [NOFB] for plane state %p\n", |
1480 | plane_state); | |
389f78b3 CW |
1481 | |
1482 | drm_framebuffer_assign(&plane_state->fb, fb); | |
321ebf04 DV |
1483 | } |
1484 | EXPORT_SYMBOL(drm_atomic_set_fb_for_plane); | |
1485 | ||
13b55664 GP |
1486 | /** |
1487 | * drm_atomic_set_fence_for_plane - set fence for plane | |
1488 | * @plane_state: atomic state object for the plane | |
1489 | * @fence: dma_fence to use for the plane | |
1490 | * | |
1491 | * Helper to setup the plane_state fence in case it is not set yet. | |
1492 | * By using this drivers doesn't need to worry if the user choose | |
1493 | * implicit or explicit fencing. | |
1494 | * | |
1495 | * This function will not set the fence to the state if it was set | |
d574528a DV |
1496 | * via explicit fencing interfaces on the atomic ioctl. In that case it will |
1497 | * drop the reference to the fence as we are not storing it anywhere. | |
1498 | * Otherwise, if &drm_plane_state.fence is not set this function we just set it | |
1499 | * with the received implicit fence. In both cases this function consumes a | |
1500 | * reference for @fence. | |
13b55664 GP |
1501 | */ |
1502 | void | |
1503 | drm_atomic_set_fence_for_plane(struct drm_plane_state *plane_state, | |
1504 | struct dma_fence *fence) | |
1505 | { | |
1506 | if (plane_state->fence) { | |
1507 | dma_fence_put(fence); | |
1508 | return; | |
1509 | } | |
1510 | ||
1511 | plane_state->fence = fence; | |
1512 | } | |
1513 | EXPORT_SYMBOL(drm_atomic_set_fence_for_plane); | |
1514 | ||
cc4ceb48 DV |
1515 | /** |
1516 | * drm_atomic_set_crtc_for_connector - set crtc for connector | |
1517 | * @conn_state: atomic state object for the connector | |
1518 | * @crtc: crtc to use for the connector | |
1519 | * | |
1520 | * Changing the assigned crtc for a connector requires us to grab the lock and | |
1521 | * state for the new crtc, as needed. This function takes care of all these | |
1522 | * details besides updating the pointer in the state object itself. | |
1523 | * | |
1524 | * Returns: | |
1525 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1526 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1527 | * sequence must be restarted. All other errors are fatal. | |
1528 | */ | |
1529 | int | |
1530 | drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, | |
1531 | struct drm_crtc *crtc) | |
1532 | { | |
1533 | struct drm_crtc_state *crtc_state; | |
1534 | ||
e2d800a3 CW |
1535 | if (conn_state->crtc == crtc) |
1536 | return 0; | |
1537 | ||
1538 | if (conn_state->crtc) { | |
b4d93679 ML |
1539 | crtc_state = drm_atomic_get_new_crtc_state(conn_state->state, |
1540 | conn_state->crtc); | |
4cd9fa52 ML |
1541 | |
1542 | crtc_state->connector_mask &= | |
1543 | ~(1 << drm_connector_index(conn_state->connector)); | |
e2d800a3 | 1544 | |
ad093607 | 1545 | drm_connector_put(conn_state->connector); |
e2d800a3 | 1546 | conn_state->crtc = NULL; |
4cd9fa52 ML |
1547 | } |
1548 | ||
cc4ceb48 DV |
1549 | if (crtc) { |
1550 | crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc); | |
1551 | if (IS_ERR(crtc_state)) | |
1552 | return PTR_ERR(crtc_state); | |
4cd9fa52 ML |
1553 | |
1554 | crtc_state->connector_mask |= | |
1555 | 1 << drm_connector_index(conn_state->connector); | |
cc4ceb48 | 1556 | |
ad093607 | 1557 | drm_connector_get(conn_state->connector); |
e2d800a3 | 1558 | conn_state->crtc = crtc; |
cc4ceb48 | 1559 | |
fa3ab4c2 VS |
1560 | DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d:%s]\n", |
1561 | conn_state, crtc->base.id, crtc->name); | |
e2d800a3 | 1562 | } else { |
17a38d9c DV |
1563 | DRM_DEBUG_ATOMIC("Link connector state %p to [NOCRTC]\n", |
1564 | conn_state); | |
e2d800a3 | 1565 | } |
cc4ceb48 DV |
1566 | |
1567 | return 0; | |
1568 | } | |
1569 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector); | |
1570 | ||
1571 | /** | |
1572 | * drm_atomic_add_affected_connectors - add connectors for crtc | |
1573 | * @state: atomic state | |
1574 | * @crtc: DRM crtc | |
1575 | * | |
1576 | * This function walks the current configuration and adds all connectors | |
1577 | * currently using @crtc to the atomic configuration @state. Note that this | |
1578 | * function must acquire the connection mutex. This can potentially cause | |
1579 | * unneeded seralization if the update is just for the planes on one crtc. Hence | |
1580 | * drivers and helpers should only call this when really needed (e.g. when a | |
1581 | * full modeset needs to happen due to some change). | |
1582 | * | |
1583 | * Returns: | |
1584 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1585 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1586 | * sequence must be restarted. All other errors are fatal. | |
1587 | */ | |
1588 | int | |
1589 | drm_atomic_add_affected_connectors(struct drm_atomic_state *state, | |
1590 | struct drm_crtc *crtc) | |
1591 | { | |
1592 | struct drm_mode_config *config = &state->dev->mode_config; | |
1593 | struct drm_connector *connector; | |
1594 | struct drm_connector_state *conn_state; | |
613051da | 1595 | struct drm_connector_list_iter conn_iter; |
5351bbdd | 1596 | struct drm_crtc_state *crtc_state; |
cc4ceb48 DV |
1597 | int ret; |
1598 | ||
5351bbdd ML |
1599 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
1600 | if (IS_ERR(crtc_state)) | |
1601 | return PTR_ERR(crtc_state); | |
1602 | ||
cc4ceb48 DV |
1603 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
1604 | if (ret) | |
1605 | return ret; | |
1606 | ||
fa3ab4c2 VS |
1607 | DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d:%s] to %p\n", |
1608 | crtc->base.id, crtc->name, state); | |
cc4ceb48 DV |
1609 | |
1610 | /* | |
5351bbdd ML |
1611 | * Changed connectors are already in @state, so only need to look |
1612 | * at the connector_mask in crtc_state. | |
cc4ceb48 | 1613 | */ |
b982dab1 | 1614 | drm_connector_list_iter_begin(state->dev, &conn_iter); |
613051da | 1615 | drm_for_each_connector_iter(connector, &conn_iter) { |
5351bbdd | 1616 | if (!(crtc_state->connector_mask & (1 << drm_connector_index(connector)))) |
cc4ceb48 DV |
1617 | continue; |
1618 | ||
1619 | conn_state = drm_atomic_get_connector_state(state, connector); | |
613051da | 1620 | if (IS_ERR(conn_state)) { |
b982dab1 | 1621 | drm_connector_list_iter_end(&conn_iter); |
cc4ceb48 | 1622 | return PTR_ERR(conn_state); |
613051da | 1623 | } |
cc4ceb48 | 1624 | } |
b982dab1 | 1625 | drm_connector_list_iter_end(&conn_iter); |
cc4ceb48 DV |
1626 | |
1627 | return 0; | |
1628 | } | |
1629 | EXPORT_SYMBOL(drm_atomic_add_affected_connectors); | |
1630 | ||
e01e9f75 ML |
1631 | /** |
1632 | * drm_atomic_add_affected_planes - add planes for crtc | |
1633 | * @state: atomic state | |
1634 | * @crtc: DRM crtc | |
1635 | * | |
1636 | * This function walks the current configuration and adds all planes | |
1637 | * currently used by @crtc to the atomic configuration @state. This is useful | |
1638 | * when an atomic commit also needs to check all currently enabled plane on | |
1639 | * @crtc, e.g. when changing the mode. It's also useful when re-enabling a CRTC | |
1640 | * to avoid special code to force-enable all planes. | |
1641 | * | |
1642 | * Since acquiring a plane state will always also acquire the w/w mutex of the | |
1643 | * current CRTC for that plane (if there is any) adding all the plane states for | |
1644 | * a CRTC will not reduce parallism of atomic updates. | |
1645 | * | |
1646 | * Returns: | |
1647 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1648 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1649 | * sequence must be restarted. All other errors are fatal. | |
1650 | */ | |
1651 | int | |
1652 | drm_atomic_add_affected_planes(struct drm_atomic_state *state, | |
1653 | struct drm_crtc *crtc) | |
1654 | { | |
1655 | struct drm_plane *plane; | |
1656 | ||
b4d93679 | 1657 | WARN_ON(!drm_atomic_get_new_crtc_state(state, crtc)); |
e01e9f75 ML |
1658 | |
1659 | drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) { | |
1660 | struct drm_plane_state *plane_state = | |
1661 | drm_atomic_get_plane_state(state, plane); | |
1662 | ||
1663 | if (IS_ERR(plane_state)) | |
1664 | return PTR_ERR(plane_state); | |
1665 | } | |
1666 | return 0; | |
1667 | } | |
1668 | EXPORT_SYMBOL(drm_atomic_add_affected_planes); | |
1669 | ||
cc4ceb48 DV |
1670 | /** |
1671 | * drm_atomic_check_only - check whether a given config would work | |
1672 | * @state: atomic configuration to check | |
1673 | * | |
1674 | * Note that this function can return -EDEADLK if the driver needed to acquire | |
1675 | * more locks but encountered a deadlock. The caller must then do the usual w/w | |
1676 | * backoff dance and restart. All other errors are fatal. | |
1677 | * | |
1678 | * Returns: | |
1679 | * 0 on success, negative error code on failure. | |
1680 | */ | |
1681 | int drm_atomic_check_only(struct drm_atomic_state *state) | |
1682 | { | |
5e743737 RC |
1683 | struct drm_device *dev = state->dev; |
1684 | struct drm_mode_config *config = &dev->mode_config; | |
df63b999 ACO |
1685 | struct drm_plane *plane; |
1686 | struct drm_plane_state *plane_state; | |
1687 | struct drm_crtc *crtc; | |
1688 | struct drm_crtc_state *crtc_state; | |
5e743737 | 1689 | int i, ret = 0; |
cc4ceb48 | 1690 | |
17a38d9c | 1691 | DRM_DEBUG_ATOMIC("checking %p\n", state); |
cc4ceb48 | 1692 | |
5721a380 | 1693 | for_each_new_plane_in_state(state, plane, plane_state, i) { |
df63b999 | 1694 | ret = drm_atomic_plane_check(plane, plane_state); |
5e743737 | 1695 | if (ret) { |
9f4c97a2 VS |
1696 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] atomic core check failed\n", |
1697 | plane->base.id, plane->name); | |
5e743737 RC |
1698 | return ret; |
1699 | } | |
1700 | } | |
1701 | ||
5721a380 | 1702 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
df63b999 | 1703 | ret = drm_atomic_crtc_check(crtc, crtc_state); |
5e743737 | 1704 | if (ret) { |
fa3ab4c2 VS |
1705 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic core check failed\n", |
1706 | crtc->base.id, crtc->name); | |
5e743737 RC |
1707 | return ret; |
1708 | } | |
1709 | } | |
1710 | ||
cc4ceb48 | 1711 | if (config->funcs->atomic_check) |
5e743737 RC |
1712 | ret = config->funcs->atomic_check(state->dev, state); |
1713 | ||
a0ffc51e ML |
1714 | if (ret) |
1715 | return ret; | |
1716 | ||
d34f20d6 | 1717 | if (!state->allow_modeset) { |
5721a380 | 1718 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
2465ff62 | 1719 | if (drm_atomic_crtc_needs_modeset(crtc_state)) { |
fa3ab4c2 VS |
1720 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requires full modeset\n", |
1721 | crtc->base.id, crtc->name); | |
d34f20d6 RC |
1722 | return -EINVAL; |
1723 | } | |
1724 | } | |
1725 | } | |
1726 | ||
a0ffc51e | 1727 | return 0; |
cc4ceb48 DV |
1728 | } |
1729 | EXPORT_SYMBOL(drm_atomic_check_only); | |
1730 | ||
1731 | /** | |
1732 | * drm_atomic_commit - commit configuration atomically | |
1733 | * @state: atomic configuration to check | |
1734 | * | |
1735 | * Note that this function can return -EDEADLK if the driver needed to acquire | |
1736 | * more locks but encountered a deadlock. The caller must then do the usual w/w | |
1737 | * backoff dance and restart. All other errors are fatal. | |
1738 | * | |
76fede2f ML |
1739 | * This function will take its own reference on @state. |
1740 | * Callers should always release their reference with drm_atomic_state_put(). | |
cc4ceb48 DV |
1741 | * |
1742 | * Returns: | |
1743 | * 0 on success, negative error code on failure. | |
1744 | */ | |
1745 | int drm_atomic_commit(struct drm_atomic_state *state) | |
1746 | { | |
1747 | struct drm_mode_config *config = &state->dev->mode_config; | |
1748 | int ret; | |
1749 | ||
1750 | ret = drm_atomic_check_only(state); | |
1751 | if (ret) | |
1752 | return ret; | |
1753 | ||
a0752d4a | 1754 | DRM_DEBUG_ATOMIC("committing %p\n", state); |
cc4ceb48 DV |
1755 | |
1756 | return config->funcs->atomic_commit(state->dev, state, false); | |
1757 | } | |
1758 | EXPORT_SYMBOL(drm_atomic_commit); | |
1759 | ||
1760 | /** | |
d574528a | 1761 | * drm_atomic_nonblocking_commit - atomic nonblocking commit |
cc4ceb48 DV |
1762 | * @state: atomic configuration to check |
1763 | * | |
1764 | * Note that this function can return -EDEADLK if the driver needed to acquire | |
1765 | * more locks but encountered a deadlock. The caller must then do the usual w/w | |
1766 | * backoff dance and restart. All other errors are fatal. | |
1767 | * | |
76fede2f ML |
1768 | * This function will take its own reference on @state. |
1769 | * Callers should always release their reference with drm_atomic_state_put(). | |
cc4ceb48 DV |
1770 | * |
1771 | * Returns: | |
1772 | * 0 on success, negative error code on failure. | |
1773 | */ | |
b837ba0a | 1774 | int drm_atomic_nonblocking_commit(struct drm_atomic_state *state) |
cc4ceb48 DV |
1775 | { |
1776 | struct drm_mode_config *config = &state->dev->mode_config; | |
1777 | int ret; | |
1778 | ||
1779 | ret = drm_atomic_check_only(state); | |
1780 | if (ret) | |
1781 | return ret; | |
1782 | ||
a0752d4a | 1783 | DRM_DEBUG_ATOMIC("committing %p nonblocking\n", state); |
cc4ceb48 DV |
1784 | |
1785 | return config->funcs->atomic_commit(state->dev, state, true); | |
1786 | } | |
b837ba0a | 1787 | EXPORT_SYMBOL(drm_atomic_nonblocking_commit); |
d34f20d6 | 1788 | |
fceffb32 RC |
1789 | static void drm_atomic_print_state(const struct drm_atomic_state *state) |
1790 | { | |
1791 | struct drm_printer p = drm_info_printer(state->dev->dev); | |
1792 | struct drm_plane *plane; | |
1793 | struct drm_plane_state *plane_state; | |
1794 | struct drm_crtc *crtc; | |
1795 | struct drm_crtc_state *crtc_state; | |
1796 | struct drm_connector *connector; | |
1797 | struct drm_connector_state *connector_state; | |
1798 | int i; | |
1799 | ||
1800 | DRM_DEBUG_ATOMIC("checking %p\n", state); | |
1801 | ||
5721a380 | 1802 | for_each_new_plane_in_state(state, plane, plane_state, i) |
fceffb32 RC |
1803 | drm_atomic_plane_print_state(&p, plane_state); |
1804 | ||
5721a380 | 1805 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) |
fceffb32 RC |
1806 | drm_atomic_crtc_print_state(&p, crtc_state); |
1807 | ||
5721a380 | 1808 | for_each_new_connector_in_state(state, connector, connector_state, i) |
fceffb32 RC |
1809 | drm_atomic_connector_print_state(&p, connector_state); |
1810 | } | |
1811 | ||
c2d85564 DV |
1812 | static void __drm_state_dump(struct drm_device *dev, struct drm_printer *p, |
1813 | bool take_locks) | |
6559c901 RC |
1814 | { |
1815 | struct drm_mode_config *config = &dev->mode_config; | |
1816 | struct drm_plane *plane; | |
1817 | struct drm_crtc *crtc; | |
1818 | struct drm_connector *connector; | |
613051da | 1819 | struct drm_connector_list_iter conn_iter; |
6559c901 RC |
1820 | |
1821 | if (!drm_core_check_feature(dev, DRIVER_ATOMIC)) | |
1822 | return; | |
1823 | ||
c2d85564 DV |
1824 | list_for_each_entry(plane, &config->plane_list, head) { |
1825 | if (take_locks) | |
1826 | drm_modeset_lock(&plane->mutex, NULL); | |
6559c901 | 1827 | drm_atomic_plane_print_state(p, plane->state); |
c2d85564 DV |
1828 | if (take_locks) |
1829 | drm_modeset_unlock(&plane->mutex); | |
1830 | } | |
6559c901 | 1831 | |
c2d85564 DV |
1832 | list_for_each_entry(crtc, &config->crtc_list, head) { |
1833 | if (take_locks) | |
1834 | drm_modeset_lock(&crtc->mutex, NULL); | |
6559c901 | 1835 | drm_atomic_crtc_print_state(p, crtc->state); |
c2d85564 DV |
1836 | if (take_locks) |
1837 | drm_modeset_unlock(&crtc->mutex); | |
1838 | } | |
6559c901 | 1839 | |
b982dab1 | 1840 | drm_connector_list_iter_begin(dev, &conn_iter); |
c2d85564 DV |
1841 | if (take_locks) |
1842 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
613051da | 1843 | drm_for_each_connector_iter(connector, &conn_iter) |
6559c901 | 1844 | drm_atomic_connector_print_state(p, connector->state); |
c2d85564 DV |
1845 | if (take_locks) |
1846 | drm_modeset_unlock(&dev->mode_config.connection_mutex); | |
b982dab1 | 1847 | drm_connector_list_iter_end(&conn_iter); |
6559c901 | 1848 | } |
c2d85564 DV |
1849 | |
1850 | /** | |
1851 | * drm_state_dump - dump entire device atomic state | |
1852 | * @dev: the drm device | |
1853 | * @p: where to print the state to | |
1854 | * | |
1855 | * Just for debugging. Drivers might want an option to dump state | |
1856 | * to dmesg in case of error irq's. (Hint, you probably want to | |
1857 | * ratelimit this!) | |
1858 | * | |
1859 | * The caller must drm_modeset_lock_all(), or if this is called | |
1860 | * from error irq handler, it should not be enabled by default. | |
1861 | * (Ie. if you are debugging errors you might not care that this | |
1862 | * is racey. But calling this without all modeset locks held is | |
1863 | * not inherently safe.) | |
1864 | */ | |
1865 | void drm_state_dump(struct drm_device *dev, struct drm_printer *p) | |
1866 | { | |
1867 | __drm_state_dump(dev, p, false); | |
1868 | } | |
6559c901 RC |
1869 | EXPORT_SYMBOL(drm_state_dump); |
1870 | ||
1871 | #ifdef CONFIG_DEBUG_FS | |
1872 | static int drm_state_info(struct seq_file *m, void *data) | |
1873 | { | |
1874 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
1875 | struct drm_device *dev = node->minor->dev; | |
1876 | struct drm_printer p = drm_seq_file_printer(m); | |
1877 | ||
c2d85564 | 1878 | __drm_state_dump(dev, &p, true); |
6559c901 RC |
1879 | |
1880 | return 0; | |
1881 | } | |
1882 | ||
1883 | /* any use in debugfs files to dump individual planes/crtc/etc? */ | |
1884 | static const struct drm_info_list drm_atomic_debugfs_list[] = { | |
1885 | {"state", drm_state_info, 0}, | |
1886 | }; | |
1887 | ||
1888 | int drm_atomic_debugfs_init(struct drm_minor *minor) | |
1889 | { | |
1890 | return drm_debugfs_create_files(drm_atomic_debugfs_list, | |
1891 | ARRAY_SIZE(drm_atomic_debugfs_list), | |
1892 | minor->debugfs_root, minor); | |
1893 | } | |
1894 | #endif | |
1895 | ||
d34f20d6 | 1896 | /* |
21be9154 | 1897 | * The big monster ioctl |
d34f20d6 RC |
1898 | */ |
1899 | ||
1900 | static struct drm_pending_vblank_event *create_vblank_event( | |
bd386e51 | 1901 | struct drm_crtc *crtc, uint64_t user_data) |
d34f20d6 RC |
1902 | { |
1903 | struct drm_pending_vblank_event *e = NULL; | |
d34f20d6 RC |
1904 | |
1905 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
2dd500f1 DV |
1906 | if (!e) |
1907 | return NULL; | |
d34f20d6 RC |
1908 | |
1909 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; | |
2dd500f1 | 1910 | e->event.base.length = sizeof(e->event); |
bd386e51 KP |
1911 | e->event.vbl.crtc_id = crtc->base.id; |
1912 | e->event.vbl.user_data = user_data; | |
d34f20d6 | 1913 | |
2dd500f1 | 1914 | return e; |
d34f20d6 RC |
1915 | } |
1916 | ||
144a7999 DV |
1917 | int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state, |
1918 | struct drm_connector *connector, | |
1919 | int mode) | |
1920 | { | |
1921 | struct drm_connector *tmp_connector; | |
1922 | struct drm_connector_state *new_conn_state; | |
1923 | struct drm_crtc *crtc; | |
1924 | struct drm_crtc_state *crtc_state; | |
1925 | int i, ret, old_mode = connector->dpms; | |
1926 | bool active = false; | |
1927 | ||
1928 | ret = drm_modeset_lock(&state->dev->mode_config.connection_mutex, | |
1929 | state->acquire_ctx); | |
1930 | if (ret) | |
1931 | return ret; | |
1932 | ||
1933 | if (mode != DRM_MODE_DPMS_ON) | |
1934 | mode = DRM_MODE_DPMS_OFF; | |
1935 | connector->dpms = mode; | |
1936 | ||
1937 | crtc = connector->state->crtc; | |
1938 | if (!crtc) | |
1939 | goto out; | |
1940 | ret = drm_atomic_add_affected_connectors(state, crtc); | |
1941 | if (ret) | |
1942 | goto out; | |
1943 | ||
1944 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
1945 | if (IS_ERR(crtc_state)) { | |
1946 | ret = PTR_ERR(crtc_state); | |
1947 | goto out; | |
1948 | } | |
1949 | ||
1950 | for_each_new_connector_in_state(state, tmp_connector, new_conn_state, i) { | |
1951 | if (new_conn_state->crtc != crtc) | |
1952 | continue; | |
1953 | if (tmp_connector->dpms == DRM_MODE_DPMS_ON) { | |
1954 | active = true; | |
1955 | break; | |
1956 | } | |
1957 | } | |
1958 | ||
1959 | crtc_state->active = active; | |
1960 | ret = drm_atomic_commit(state); | |
1961 | out: | |
1962 | if (ret != 0) | |
1963 | connector->dpms = old_mode; | |
1964 | return ret; | |
1965 | } | |
1966 | ||
1967 | int drm_atomic_set_property(struct drm_atomic_state *state, | |
1968 | struct drm_mode_object *obj, | |
1969 | struct drm_property *prop, | |
1970 | uint64_t prop_value) | |
d34f20d6 RC |
1971 | { |
1972 | struct drm_mode_object *ref; | |
1973 | int ret; | |
1974 | ||
1975 | if (!drm_property_change_valid_get(prop, prop_value, &ref)) | |
1976 | return -EINVAL; | |
1977 | ||
1978 | switch (obj->type) { | |
1979 | case DRM_MODE_OBJECT_CONNECTOR: { | |
1980 | struct drm_connector *connector = obj_to_connector(obj); | |
1981 | struct drm_connector_state *connector_state; | |
1982 | ||
1983 | connector_state = drm_atomic_get_connector_state(state, connector); | |
1984 | if (IS_ERR(connector_state)) { | |
1985 | ret = PTR_ERR(connector_state); | |
1986 | break; | |
1987 | } | |
1988 | ||
1989 | ret = drm_atomic_connector_set_property(connector, | |
1990 | connector_state, prop, prop_value); | |
1991 | break; | |
1992 | } | |
1993 | case DRM_MODE_OBJECT_CRTC: { | |
1994 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
1995 | struct drm_crtc_state *crtc_state; | |
1996 | ||
1997 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
1998 | if (IS_ERR(crtc_state)) { | |
1999 | ret = PTR_ERR(crtc_state); | |
2000 | break; | |
2001 | } | |
2002 | ||
2003 | ret = drm_atomic_crtc_set_property(crtc, | |
2004 | crtc_state, prop, prop_value); | |
2005 | break; | |
2006 | } | |
2007 | case DRM_MODE_OBJECT_PLANE: { | |
2008 | struct drm_plane *plane = obj_to_plane(obj); | |
2009 | struct drm_plane_state *plane_state; | |
2010 | ||
2011 | plane_state = drm_atomic_get_plane_state(state, plane); | |
2012 | if (IS_ERR(plane_state)) { | |
2013 | ret = PTR_ERR(plane_state); | |
2014 | break; | |
2015 | } | |
2016 | ||
2017 | ret = drm_atomic_plane_set_property(plane, | |
2018 | plane_state, prop, prop_value); | |
2019 | break; | |
2020 | } | |
2021 | default: | |
2022 | ret = -EINVAL; | |
2023 | break; | |
2024 | } | |
2025 | ||
2026 | drm_property_change_valid_put(prop, ref); | |
2027 | return ret; | |
2028 | } | |
2029 | ||
0f45c26f | 2030 | /** |
9744bf41 | 2031 | * drm_atomic_clean_old_fb -- Unset old_fb pointers and set plane->fb pointers. |
0f45c26f ML |
2032 | * |
2033 | * @dev: drm device to check. | |
2034 | * @plane_mask: plane mask for planes that were updated. | |
2035 | * @ret: return value, can be -EDEADLK for a retry. | |
2036 | * | |
d574528a DV |
2037 | * Before doing an update &drm_plane.old_fb is set to &drm_plane.fb, but before |
2038 | * dropping the locks old_fb needs to be set to NULL and plane->fb updated. This | |
2039 | * is a common operation for each atomic update, so this call is split off as a | |
2040 | * helper. | |
0f45c26f ML |
2041 | */ |
2042 | void drm_atomic_clean_old_fb(struct drm_device *dev, | |
2043 | unsigned plane_mask, | |
2044 | int ret) | |
2045 | { | |
2046 | struct drm_plane *plane; | |
2047 | ||
2048 | /* if succeeded, fixup legacy plane crtc/fb ptrs before dropping | |
2049 | * locks (ie. while it is still safe to deref plane->state). We | |
2050 | * need to do this here because the driver entry points cannot | |
2051 | * distinguish between legacy and atomic ioctls. | |
2052 | */ | |
2053 | drm_for_each_plane_mask(plane, dev, plane_mask) { | |
2054 | if (ret == 0) { | |
2055 | struct drm_framebuffer *new_fb = plane->state->fb; | |
2056 | if (new_fb) | |
a4a69da0 | 2057 | drm_framebuffer_get(new_fb); |
0f45c26f ML |
2058 | plane->fb = new_fb; |
2059 | plane->crtc = plane->state->crtc; | |
2060 | ||
2061 | if (plane->old_fb) | |
a4a69da0 | 2062 | drm_framebuffer_put(plane->old_fb); |
0f45c26f ML |
2063 | } |
2064 | plane->old_fb = NULL; | |
2065 | } | |
2066 | } | |
2067 | EXPORT_SYMBOL(drm_atomic_clean_old_fb); | |
2068 | ||
9a83a71a GP |
2069 | /** |
2070 | * DOC: explicit fencing properties | |
2071 | * | |
2072 | * Explicit fencing allows userspace to control the buffer synchronization | |
2073 | * between devices. A Fence or a group of fences are transfered to/from | |
2074 | * userspace using Sync File fds and there are two DRM properties for that. | |
2075 | * IN_FENCE_FD on each DRM Plane to send fences to the kernel and | |
2076 | * OUT_FENCE_PTR on each DRM CRTC to receive fences from the kernel. | |
2077 | * | |
2078 | * As a contrast, with implicit fencing the kernel keeps track of any | |
2079 | * ongoing rendering, and automatically ensures that the atomic update waits | |
2080 | * for any pending rendering to complete. For shared buffers represented with | |
d574528a | 2081 | * a &struct dma_buf this is tracked in &struct reservation_object. |
9a83a71a GP |
2082 | * Implicit syncing is how Linux traditionally worked (e.g. DRI2/3 on X.org), |
2083 | * whereas explicit fencing is what Android wants. | |
2084 | * | |
2085 | * "IN_FENCE_FD”: | |
2086 | * Use this property to pass a fence that DRM should wait on before | |
2087 | * proceeding with the Atomic Commit request and show the framebuffer for | |
2088 | * the plane on the screen. The fence can be either a normal fence or a | |
2089 | * merged one, the sync_file framework will handle both cases and use a | |
2090 | * fence_array if a merged fence is received. Passing -1 here means no | |
2091 | * fences to wait on. | |
2092 | * | |
2093 | * If the Atomic Commit request has the DRM_MODE_ATOMIC_TEST_ONLY flag | |
2094 | * it will only check if the Sync File is a valid one. | |
2095 | * | |
2096 | * On the driver side the fence is stored on the @fence parameter of | |
ea0dd85a | 2097 | * &struct drm_plane_state. Drivers which also support implicit fencing |
9a83a71a GP |
2098 | * should set the implicit fence using drm_atomic_set_fence_for_plane(), |
2099 | * to make sure there's consistent behaviour between drivers in precedence | |
2100 | * of implicit vs. explicit fencing. | |
2101 | * | |
2102 | * "OUT_FENCE_PTR”: | |
2103 | * Use this property to pass a file descriptor pointer to DRM. Once the | |
2104 | * Atomic Commit request call returns OUT_FENCE_PTR will be filled with | |
2105 | * the file descriptor number of a Sync File. This Sync File contains the | |
2106 | * CRTC fence that will be signaled when all framebuffers present on the | |
2107 | * Atomic Commit * request for that given CRTC are scanned out on the | |
2108 | * screen. | |
2109 | * | |
2110 | * The Atomic Commit request fails if a invalid pointer is passed. If the | |
2111 | * Atomic Commit request fails for any other reason the out fence fd | |
2112 | * returned will be -1. On a Atomic Commit with the | |
2113 | * DRM_MODE_ATOMIC_TEST_ONLY flag the out fence will also be set to -1. | |
2114 | * | |
2115 | * Note that out-fences don't have a special interface to drivers and are | |
ea0dd85a | 2116 | * internally represented by a &struct drm_pending_vblank_event in struct |
9a83a71a GP |
2117 | * &drm_crtc_state, which is also used by the nonblocking atomic commit |
2118 | * helpers and for the DRM event handling for existing userspace. | |
2119 | */ | |
2120 | ||
beaf5af4 | 2121 | struct drm_out_fence_state { |
7e9081c5 | 2122 | s32 __user *out_fence_ptr; |
beaf5af4 GP |
2123 | struct sync_file *sync_file; |
2124 | int fd; | |
2125 | }; | |
2126 | ||
2127 | static int setup_out_fence(struct drm_out_fence_state *fence_state, | |
2128 | struct dma_fence *fence) | |
2129 | { | |
2130 | fence_state->fd = get_unused_fd_flags(O_CLOEXEC); | |
2131 | if (fence_state->fd < 0) | |
2132 | return fence_state->fd; | |
2133 | ||
2134 | if (put_user(fence_state->fd, fence_state->out_fence_ptr)) | |
2135 | return -EFAULT; | |
2136 | ||
2137 | fence_state->sync_file = sync_file_create(fence); | |
2138 | if (!fence_state->sync_file) | |
2139 | return -ENOMEM; | |
2140 | ||
2141 | return 0; | |
2142 | } | |
2143 | ||
2144 | static int prepare_crtc_signaling(struct drm_device *dev, | |
2145 | struct drm_atomic_state *state, | |
2146 | struct drm_mode_atomic *arg, | |
2147 | struct drm_file *file_priv, | |
2148 | struct drm_out_fence_state **fence_state, | |
2149 | unsigned int *num_fences) | |
2150 | { | |
2151 | struct drm_crtc *crtc; | |
2152 | struct drm_crtc_state *crtc_state; | |
330c422a | 2153 | int i, c = 0, ret; |
beaf5af4 GP |
2154 | |
2155 | if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) | |
2156 | return 0; | |
2157 | ||
5721a380 | 2158 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
7e9081c5 | 2159 | s32 __user *fence_ptr; |
beaf5af4 GP |
2160 | |
2161 | fence_ptr = get_out_fence_for_crtc(crtc_state->state, crtc); | |
2162 | ||
2163 | if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT || fence_ptr) { | |
2164 | struct drm_pending_vblank_event *e; | |
2165 | ||
bd386e51 | 2166 | e = create_vblank_event(crtc, arg->user_data); |
beaf5af4 GP |
2167 | if (!e) |
2168 | return -ENOMEM; | |
2169 | ||
2170 | crtc_state->event = e; | |
2171 | } | |
2172 | ||
2173 | if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) { | |
2174 | struct drm_pending_vblank_event *e = crtc_state->event; | |
2175 | ||
2176 | if (!file_priv) | |
2177 | continue; | |
2178 | ||
2179 | ret = drm_event_reserve_init(dev, file_priv, &e->base, | |
2180 | &e->event.base); | |
2181 | if (ret) { | |
2182 | kfree(e); | |
2183 | crtc_state->event = NULL; | |
2184 | return ret; | |
2185 | } | |
2186 | } | |
2187 | ||
2188 | if (fence_ptr) { | |
2189 | struct dma_fence *fence; | |
2190 | struct drm_out_fence_state *f; | |
2191 | ||
2192 | f = krealloc(*fence_state, sizeof(**fence_state) * | |
2193 | (*num_fences + 1), GFP_KERNEL); | |
2194 | if (!f) | |
2195 | return -ENOMEM; | |
2196 | ||
2197 | memset(&f[*num_fences], 0, sizeof(*f)); | |
2198 | ||
2199 | f[*num_fences].out_fence_ptr = fence_ptr; | |
2200 | *fence_state = f; | |
2201 | ||
35f8cc3b | 2202 | fence = drm_crtc_create_fence(crtc); |
beaf5af4 GP |
2203 | if (!fence) |
2204 | return -ENOMEM; | |
2205 | ||
2206 | ret = setup_out_fence(&f[(*num_fences)++], fence); | |
2207 | if (ret) { | |
2208 | dma_fence_put(fence); | |
2209 | return ret; | |
2210 | } | |
2211 | ||
2212 | crtc_state->event->base.fence = fence; | |
2213 | } | |
330c422a AG |
2214 | |
2215 | c++; | |
beaf5af4 GP |
2216 | } |
2217 | ||
330c422a AG |
2218 | /* |
2219 | * Having this flag means user mode pends on event which will never | |
2220 | * reach due to lack of at least one CRTC for signaling | |
2221 | */ | |
2222 | if (c == 0 && (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) | |
2223 | return -EINVAL; | |
2224 | ||
beaf5af4 GP |
2225 | return 0; |
2226 | } | |
2227 | ||
2228 | static void complete_crtc_signaling(struct drm_device *dev, | |
2229 | struct drm_atomic_state *state, | |
2230 | struct drm_out_fence_state *fence_state, | |
2231 | unsigned int num_fences, | |
2232 | bool install_fds) | |
2233 | { | |
2234 | struct drm_crtc *crtc; | |
2235 | struct drm_crtc_state *crtc_state; | |
2236 | int i; | |
2237 | ||
2238 | if (install_fds) { | |
2239 | for (i = 0; i < num_fences; i++) | |
2240 | fd_install(fence_state[i].fd, | |
2241 | fence_state[i].sync_file->file); | |
2242 | ||
2243 | kfree(fence_state); | |
2244 | return; | |
2245 | } | |
2246 | ||
5721a380 | 2247 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
92c715fc | 2248 | struct drm_pending_vblank_event *event = crtc_state->event; |
beaf5af4 | 2249 | /* |
92c715fc ML |
2250 | * Free the allocated event. drm_atomic_helper_setup_commit |
2251 | * can allocate an event too, so only free it if it's ours | |
2252 | * to prevent a double free in drm_atomic_state_clear. | |
beaf5af4 | 2253 | */ |
92c715fc ML |
2254 | if (event && (event->base.fence || event->base.file_priv)) { |
2255 | drm_event_cancel_free(dev, &event->base); | |
2256 | crtc_state->event = NULL; | |
2257 | } | |
beaf5af4 GP |
2258 | } |
2259 | ||
2260 | if (!fence_state) | |
2261 | return; | |
2262 | ||
2263 | for (i = 0; i < num_fences; i++) { | |
2264 | if (fence_state[i].sync_file) | |
2265 | fput(fence_state[i].sync_file->file); | |
2266 | if (fence_state[i].fd >= 0) | |
2267 | put_unused_fd(fence_state[i].fd); | |
2268 | ||
2269 | /* If this fails log error to the user */ | |
2270 | if (fence_state[i].out_fence_ptr && | |
2271 | put_user(-1, fence_state[i].out_fence_ptr)) | |
2272 | DRM_DEBUG_ATOMIC("Couldn't clear out_fence_ptr\n"); | |
2273 | } | |
2274 | ||
2275 | kfree(fence_state); | |
2276 | } | |
2277 | ||
d34f20d6 RC |
2278 | int drm_mode_atomic_ioctl(struct drm_device *dev, |
2279 | void *data, struct drm_file *file_priv) | |
2280 | { | |
2281 | struct drm_mode_atomic *arg = data; | |
2282 | uint32_t __user *objs_ptr = (uint32_t __user *)(unsigned long)(arg->objs_ptr); | |
2283 | uint32_t __user *count_props_ptr = (uint32_t __user *)(unsigned long)(arg->count_props_ptr); | |
2284 | uint32_t __user *props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
2285 | uint64_t __user *prop_values_ptr = (uint64_t __user *)(unsigned long)(arg->prop_values_ptr); | |
2286 | unsigned int copied_objs, copied_props; | |
2287 | struct drm_atomic_state *state; | |
2288 | struct drm_modeset_acquire_ctx ctx; | |
2289 | struct drm_plane *plane; | |
7f5d6dac | 2290 | struct drm_out_fence_state *fence_state; |
45723728 | 2291 | unsigned plane_mask; |
d34f20d6 | 2292 | int ret = 0; |
7f5d6dac | 2293 | unsigned int i, j, num_fences; |
d34f20d6 RC |
2294 | |
2295 | /* disallow for drivers not supporting atomic: */ | |
2296 | if (!drm_core_check_feature(dev, DRIVER_ATOMIC)) | |
2297 | return -EINVAL; | |
2298 | ||
2299 | /* disallow for userspace that has not enabled atomic cap (even | |
2300 | * though this may be a bit overkill, since legacy userspace | |
2301 | * wouldn't know how to call this ioctl) | |
2302 | */ | |
2303 | if (!file_priv->atomic) | |
2304 | return -EINVAL; | |
2305 | ||
2306 | if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS) | |
2307 | return -EINVAL; | |
2308 | ||
2309 | if (arg->reserved) | |
2310 | return -EINVAL; | |
2311 | ||
2312 | if ((arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) && | |
2313 | !dev->mode_config.async_page_flip) | |
2314 | return -EINVAL; | |
2315 | ||
2316 | /* can't test and expect an event at the same time. */ | |
2317 | if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) && | |
2318 | (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) | |
2319 | return -EINVAL; | |
2320 | ||
dad56ce4 | 2321 | drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); |
d34f20d6 RC |
2322 | |
2323 | state = drm_atomic_state_alloc(dev); | |
2324 | if (!state) | |
2325 | return -ENOMEM; | |
2326 | ||
2327 | state->acquire_ctx = &ctx; | |
2328 | state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET); | |
2329 | ||
2330 | retry: | |
45723728 | 2331 | plane_mask = 0; |
d34f20d6 RC |
2332 | copied_objs = 0; |
2333 | copied_props = 0; | |
7f5d6dac ML |
2334 | fence_state = NULL; |
2335 | num_fences = 0; | |
d34f20d6 RC |
2336 | |
2337 | for (i = 0; i < arg->count_objs; i++) { | |
2338 | uint32_t obj_id, count_props; | |
2339 | struct drm_mode_object *obj; | |
2340 | ||
2341 | if (get_user(obj_id, objs_ptr + copied_objs)) { | |
2342 | ret = -EFAULT; | |
ec9f932e | 2343 | goto out; |
d34f20d6 RC |
2344 | } |
2345 | ||
418da172 | 2346 | obj = drm_mode_object_find(dev, file_priv, obj_id, DRM_MODE_OBJECT_ANY); |
b164d31f DA |
2347 | if (!obj) { |
2348 | ret = -ENOENT; | |
2349 | goto out; | |
2350 | } | |
2351 | ||
2352 | if (!obj->properties) { | |
020a218f | 2353 | drm_mode_object_put(obj); |
d34f20d6 | 2354 | ret = -ENOENT; |
ec9f932e | 2355 | goto out; |
d34f20d6 RC |
2356 | } |
2357 | ||
d34f20d6 | 2358 | if (get_user(count_props, count_props_ptr + copied_objs)) { |
020a218f | 2359 | drm_mode_object_put(obj); |
d34f20d6 | 2360 | ret = -EFAULT; |
ec9f932e | 2361 | goto out; |
d34f20d6 RC |
2362 | } |
2363 | ||
2364 | copied_objs++; | |
2365 | ||
2366 | for (j = 0; j < count_props; j++) { | |
2367 | uint32_t prop_id; | |
2368 | uint64_t prop_value; | |
2369 | struct drm_property *prop; | |
2370 | ||
2371 | if (get_user(prop_id, props_ptr + copied_props)) { | |
020a218f | 2372 | drm_mode_object_put(obj); |
d34f20d6 | 2373 | ret = -EFAULT; |
ec9f932e | 2374 | goto out; |
d34f20d6 RC |
2375 | } |
2376 | ||
f92f053b | 2377 | prop = drm_mode_obj_find_prop_id(obj, prop_id); |
d34f20d6 | 2378 | if (!prop) { |
020a218f | 2379 | drm_mode_object_put(obj); |
d34f20d6 | 2380 | ret = -ENOENT; |
ec9f932e | 2381 | goto out; |
d34f20d6 RC |
2382 | } |
2383 | ||
42c5814c GR |
2384 | if (copy_from_user(&prop_value, |
2385 | prop_values_ptr + copied_props, | |
2386 | sizeof(prop_value))) { | |
020a218f | 2387 | drm_mode_object_put(obj); |
d34f20d6 | 2388 | ret = -EFAULT; |
ec9f932e | 2389 | goto out; |
d34f20d6 RC |
2390 | } |
2391 | ||
144a7999 DV |
2392 | ret = drm_atomic_set_property(state, obj, prop, |
2393 | prop_value); | |
b164d31f | 2394 | if (ret) { |
020a218f | 2395 | drm_mode_object_put(obj); |
ec9f932e | 2396 | goto out; |
b164d31f | 2397 | } |
d34f20d6 RC |
2398 | |
2399 | copied_props++; | |
2400 | } | |
a9cc54ee | 2401 | |
c4749c9a ML |
2402 | if (obj->type == DRM_MODE_OBJECT_PLANE && count_props && |
2403 | !(arg->flags & DRM_MODE_ATOMIC_TEST_ONLY)) { | |
a9cc54ee ML |
2404 | plane = obj_to_plane(obj); |
2405 | plane_mask |= (1 << drm_plane_index(plane)); | |
2406 | plane->old_fb = plane->fb; | |
2407 | } | |
020a218f | 2408 | drm_mode_object_put(obj); |
d34f20d6 RC |
2409 | } |
2410 | ||
beaf5af4 GP |
2411 | ret = prepare_crtc_signaling(dev, state, arg, file_priv, &fence_state, |
2412 | &num_fences); | |
2413 | if (ret) | |
2414 | goto out; | |
d34f20d6 RC |
2415 | |
2416 | if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) { | |
2417 | ret = drm_atomic_check_only(state); | |
d34f20d6 | 2418 | } else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) { |
b837ba0a | 2419 | ret = drm_atomic_nonblocking_commit(state); |
d34f20d6 | 2420 | } else { |
fceffb32 RC |
2421 | if (unlikely(drm_debug & DRM_UT_STATE)) |
2422 | drm_atomic_print_state(state); | |
2423 | ||
d34f20d6 RC |
2424 | ret = drm_atomic_commit(state); |
2425 | } | |
2426 | ||
ec9f932e | 2427 | out: |
0f45c26f | 2428 | drm_atomic_clean_old_fb(dev, plane_mask, ret); |
d34f20d6 | 2429 | |
beaf5af4 | 2430 | complete_crtc_signaling(dev, state, fence_state, num_fences, !ret); |
c4749c9a | 2431 | |
ec9f932e ML |
2432 | if (ret == -EDEADLK) { |
2433 | drm_atomic_state_clear(state); | |
dad56ce4 ML |
2434 | ret = drm_modeset_backoff(&ctx); |
2435 | if (!ret) | |
2436 | goto retry; | |
ec9f932e | 2437 | } |
d34f20d6 | 2438 | |
0853695c | 2439 | drm_atomic_state_put(state); |
d34f20d6 RC |
2440 | |
2441 | drm_modeset_drop_locks(&ctx); | |
2442 | drm_modeset_acquire_fini(&ctx); | |
2443 | ||
2444 | return ret; | |
d34f20d6 | 2445 | } |