Commit | Line | Data |
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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; | |
ad093607 | 158 | drm_connector_put(connector); |
cc4ceb48 DV |
159 | } |
160 | ||
6f75cea6 | 161 | for (i = 0; i < config->num_crtc; i++) { |
5d943aa6 | 162 | struct drm_crtc *crtc = state->crtcs[i].ptr; |
cc4ceb48 DV |
163 | |
164 | if (!crtc) | |
165 | continue; | |
166 | ||
167 | crtc->funcs->atomic_destroy_state(crtc, | |
5d943aa6 | 168 | state->crtcs[i].state); |
3b24f7d6 | 169 | |
5d943aa6 DV |
170 | state->crtcs[i].ptr = NULL; |
171 | state->crtcs[i].state = NULL; | |
cc4ceb48 DV |
172 | } |
173 | ||
6f75cea6 | 174 | for (i = 0; i < config->num_total_plane; i++) { |
b8b5342b | 175 | struct drm_plane *plane = state->planes[i].ptr; |
cc4ceb48 DV |
176 | |
177 | if (!plane) | |
178 | continue; | |
179 | ||
180 | plane->funcs->atomic_destroy_state(plane, | |
b8b5342b DV |
181 | state->planes[i].state); |
182 | state->planes[i].ptr = NULL; | |
183 | state->planes[i].state = NULL; | |
cc4ceb48 | 184 | } |
b430c27a PD |
185 | |
186 | for (i = 0; i < state->num_private_objs; i++) { | |
a4370c77 | 187 | struct drm_private_obj *obj = state->private_objs[i].ptr; |
b430c27a | 188 | |
a4370c77 VS |
189 | obj->funcs->atomic_destroy_state(obj, |
190 | state->private_objs[i].state); | |
191 | state->private_objs[i].ptr = NULL; | |
192 | state->private_objs[i].state = NULL; | |
b430c27a PD |
193 | } |
194 | state->num_private_objs = 0; | |
195 | ||
21a01abb ML |
196 | if (state->fake_commit) { |
197 | drm_crtc_commit_put(state->fake_commit); | |
198 | state->fake_commit = NULL; | |
199 | } | |
cc4ceb48 | 200 | } |
036ef573 ML |
201 | EXPORT_SYMBOL(drm_atomic_state_default_clear); |
202 | ||
203 | /** | |
204 | * drm_atomic_state_clear - clear state object | |
205 | * @state: atomic state | |
206 | * | |
207 | * When the w/w mutex algorithm detects a deadlock we need to back off and drop | |
208 | * all locks. So someone else could sneak in and change the current modeset | |
209 | * configuration. Which means that all the state assembled in @state is no | |
210 | * longer an atomic update to the current state, but to some arbitrary earlier | |
d574528a DV |
211 | * state. Which could break assumptions the driver's |
212 | * &drm_mode_config_funcs.atomic_check likely relies on. | |
036ef573 ML |
213 | * |
214 | * Hence we must clear all cached state and completely start over, using this | |
215 | * function. | |
216 | */ | |
217 | void drm_atomic_state_clear(struct drm_atomic_state *state) | |
218 | { | |
219 | struct drm_device *dev = state->dev; | |
220 | struct drm_mode_config *config = &dev->mode_config; | |
221 | ||
222 | if (config->funcs->atomic_state_clear) | |
223 | config->funcs->atomic_state_clear(state); | |
224 | else | |
225 | drm_atomic_state_default_clear(state); | |
226 | } | |
cc4ceb48 DV |
227 | EXPORT_SYMBOL(drm_atomic_state_clear); |
228 | ||
229 | /** | |
0853695c CW |
230 | * __drm_atomic_state_free - free all memory for an atomic state |
231 | * @ref: This atomic state to deallocate | |
cc4ceb48 DV |
232 | * |
233 | * This frees all memory associated with an atomic state, including all the | |
234 | * per-object state for planes, crtcs and connectors. | |
235 | */ | |
0853695c | 236 | void __drm_atomic_state_free(struct kref *ref) |
cc4ceb48 | 237 | { |
0853695c CW |
238 | struct drm_atomic_state *state = container_of(ref, typeof(*state), ref); |
239 | struct drm_mode_config *config = &state->dev->mode_config; | |
036ef573 | 240 | |
cc4ceb48 DV |
241 | drm_atomic_state_clear(state); |
242 | ||
17a38d9c | 243 | DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state); |
cc4ceb48 | 244 | |
036ef573 ML |
245 | if (config->funcs->atomic_state_free) { |
246 | config->funcs->atomic_state_free(state); | |
247 | } else { | |
248 | drm_atomic_state_default_release(state); | |
249 | kfree(state); | |
250 | } | |
cc4ceb48 | 251 | } |
0853695c | 252 | EXPORT_SYMBOL(__drm_atomic_state_free); |
cc4ceb48 DV |
253 | |
254 | /** | |
255 | * drm_atomic_get_crtc_state - get crtc state | |
256 | * @state: global atomic state object | |
257 | * @crtc: crtc to get state object for | |
258 | * | |
259 | * This function returns the crtc state for the given crtc, allocating it if | |
260 | * needed. It will also grab the relevant crtc lock to make sure that the state | |
261 | * is consistent. | |
262 | * | |
263 | * Returns: | |
264 | * | |
265 | * Either the allocated state or the error code encoded into the pointer. When | |
266 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the | |
267 | * entire atomic sequence must be restarted. All other errors are fatal. | |
268 | */ | |
269 | struct drm_crtc_state * | |
270 | drm_atomic_get_crtc_state(struct drm_atomic_state *state, | |
271 | struct drm_crtc *crtc) | |
272 | { | |
1b26a5e1 | 273 | int ret, index = drm_crtc_index(crtc); |
cc4ceb48 DV |
274 | struct drm_crtc_state *crtc_state; |
275 | ||
7f4eaa89 ML |
276 | WARN_ON(!state->acquire_ctx); |
277 | ||
1b26a5e1 ML |
278 | crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); |
279 | if (crtc_state) | |
280 | return crtc_state; | |
cc4ceb48 DV |
281 | |
282 | ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx); | |
283 | if (ret) | |
284 | return ERR_PTR(ret); | |
285 | ||
286 | crtc_state = crtc->funcs->atomic_duplicate_state(crtc); | |
287 | if (!crtc_state) | |
288 | return ERR_PTR(-ENOMEM); | |
289 | ||
5d943aa6 | 290 | state->crtcs[index].state = crtc_state; |
581e49fe ML |
291 | state->crtcs[index].old_state = crtc->state; |
292 | state->crtcs[index].new_state = crtc_state; | |
5d943aa6 | 293 | state->crtcs[index].ptr = crtc; |
cc4ceb48 DV |
294 | crtc_state->state = state; |
295 | ||
fa3ab4c2 VS |
296 | DRM_DEBUG_ATOMIC("Added [CRTC:%d:%s] %p state to %p\n", |
297 | crtc->base.id, crtc->name, crtc_state, state); | |
cc4ceb48 DV |
298 | |
299 | return crtc_state; | |
300 | } | |
301 | EXPORT_SYMBOL(drm_atomic_get_crtc_state); | |
302 | ||
beaf5af4 | 303 | static void set_out_fence_for_crtc(struct drm_atomic_state *state, |
7e9081c5 | 304 | struct drm_crtc *crtc, s32 __user *fence_ptr) |
beaf5af4 GP |
305 | { |
306 | state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = fence_ptr; | |
307 | } | |
308 | ||
7e9081c5 | 309 | static s32 __user *get_out_fence_for_crtc(struct drm_atomic_state *state, |
beaf5af4 GP |
310 | struct drm_crtc *crtc) |
311 | { | |
7e9081c5 | 312 | s32 __user *fence_ptr; |
beaf5af4 GP |
313 | |
314 | fence_ptr = state->crtcs[drm_crtc_index(crtc)].out_fence_ptr; | |
315 | state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = NULL; | |
316 | ||
317 | return fence_ptr; | |
318 | } | |
319 | ||
819364da DS |
320 | /** |
321 | * drm_atomic_set_mode_for_crtc - set mode for CRTC | |
322 | * @state: the CRTC whose incoming state to update | |
323 | * @mode: kernel-internal mode to use for the CRTC, or NULL to disable | |
324 | * | |
cbef9099 DP |
325 | * Set a mode (originating from the kernel) on the desired CRTC state and update |
326 | * the enable property. | |
819364da DS |
327 | * |
328 | * RETURNS: | |
329 | * Zero on success, error code on failure. Cannot return -EDEADLK. | |
330 | */ | |
331 | int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, | |
91110a4b | 332 | const struct drm_display_mode *mode) |
819364da | 333 | { |
b6f690ab | 334 | struct drm_crtc *crtc = state->crtc; |
99cf4a29 DS |
335 | struct drm_mode_modeinfo umode; |
336 | ||
819364da DS |
337 | /* Early return for no change. */ |
338 | if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0) | |
339 | return 0; | |
340 | ||
6472e509 | 341 | drm_property_blob_put(state->mode_blob); |
99cf4a29 DS |
342 | state->mode_blob = NULL; |
343 | ||
819364da | 344 | if (mode) { |
99cf4a29 DS |
345 | drm_mode_convert_to_umode(&umode, mode); |
346 | state->mode_blob = | |
347 | drm_property_create_blob(state->crtc->dev, | |
348 | sizeof(umode), | |
349 | &umode); | |
350 | if (IS_ERR(state->mode_blob)) | |
351 | return PTR_ERR(state->mode_blob); | |
352 | ||
819364da DS |
353 | drm_mode_copy(&state->mode, mode); |
354 | state->enable = true; | |
b6f690ab VS |
355 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for [CRTC:%d:%s] state %p\n", |
356 | mode->name, crtc->base.id, crtc->name, state); | |
819364da DS |
357 | } else { |
358 | memset(&state->mode, 0, sizeof(state->mode)); | |
359 | state->enable = false; | |
b6f690ab VS |
360 | DRM_DEBUG_ATOMIC("Set [NOMODE] for [CRTC:%d:%s] state %p\n", |
361 | crtc->base.id, crtc->name, state); | |
819364da DS |
362 | } |
363 | ||
364 | return 0; | |
365 | } | |
366 | EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); | |
367 | ||
955f3c33 DS |
368 | /** |
369 | * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC | |
370 | * @state: the CRTC whose incoming state to update | |
371 | * @blob: pointer to blob property to use for mode | |
372 | * | |
373 | * Set a mode (originating from a blob property) on the desired CRTC state. | |
374 | * This function will take a reference on the blob property for the CRTC state, | |
375 | * and release the reference held on the state's existing mode property, if any | |
376 | * was set. | |
377 | * | |
378 | * RETURNS: | |
379 | * Zero on success, error code on failure. Cannot return -EDEADLK. | |
380 | */ | |
381 | int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, | |
382 | struct drm_property_blob *blob) | |
383 | { | |
b6f690ab VS |
384 | struct drm_crtc *crtc = state->crtc; |
385 | ||
955f3c33 DS |
386 | if (blob == state->mode_blob) |
387 | return 0; | |
388 | ||
6472e509 | 389 | drm_property_blob_put(state->mode_blob); |
955f3c33 DS |
390 | state->mode_blob = NULL; |
391 | ||
6709887c TV |
392 | memset(&state->mode, 0, sizeof(state->mode)); |
393 | ||
955f3c33 | 394 | if (blob) { |
6ab0edf4 VS |
395 | int ret; |
396 | ||
397 | if (blob->length != sizeof(struct drm_mode_modeinfo)) { | |
398 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] bad mode blob length: %zu\n", | |
399 | crtc->base.id, crtc->name, | |
400 | blob->length); | |
955f3c33 | 401 | return -EINVAL; |
6ab0edf4 VS |
402 | } |
403 | ||
404 | ret = drm_mode_convert_umode(crtc->dev, | |
405 | &state->mode, blob->data); | |
406 | if (ret) { | |
407 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] invalid mode (ret=%d, status=%s):\n", | |
408 | crtc->base.id, crtc->name, | |
409 | ret, drm_get_mode_status_name(state->mode.status)); | |
410 | drm_mode_debug_printmodeline(&state->mode); | |
411 | return -EINVAL; | |
412 | } | |
955f3c33 | 413 | |
6472e509 | 414 | state->mode_blob = drm_property_blob_get(blob); |
955f3c33 | 415 | state->enable = true; |
b6f690ab VS |
416 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for [CRTC:%d:%s] state %p\n", |
417 | state->mode.name, crtc->base.id, crtc->name, | |
418 | state); | |
955f3c33 | 419 | } else { |
955f3c33 | 420 | state->enable = false; |
b6f690ab VS |
421 | DRM_DEBUG_ATOMIC("Set [NOMODE] for [CRTC:%d:%s] state %p\n", |
422 | crtc->base.id, crtc->name, state); | |
955f3c33 DS |
423 | } |
424 | ||
425 | return 0; | |
426 | } | |
427 | EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc); | |
428 | ||
d2a24edb VS |
429 | /** |
430 | * drm_atomic_replace_property_blob_from_id - lookup the new blob and replace the old one with it | |
431 | * @dev: DRM device | |
432 | * @blob: a pointer to the member blob to be replaced | |
433 | * @blob_id: ID of the new blob | |
434 | * @expected_size: total expected size of the blob data (in bytes) | |
435 | * @expected_elem_size: expected element size of the blob data (in bytes) | |
436 | * @replaced: did the blob get replaced? | |
437 | * | |
438 | * Replace @blob with another blob with the ID @blob_id. If @blob_id is zero | |
439 | * @blob becomes NULL. | |
440 | * | |
441 | * If @expected_size is positive the new blob length is expected to be equal | |
442 | * to @expected_size bytes. If @expected_elem_size is positive the new blob | |
443 | * length is expected to be a multiple of @expected_elem_size bytes. Otherwise | |
444 | * an error is returned. | |
445 | * | |
446 | * @replaced will indicate to the caller whether the blob was replaced or not. | |
447 | * If the old and new blobs were in fact the same blob @replaced will be false | |
448 | * otherwise it will be true. | |
449 | * | |
450 | * RETURNS: | |
451 | * Zero on success, error code on failure. | |
452 | */ | |
5488dc16 | 453 | static int |
dafee60d | 454 | drm_atomic_replace_property_blob_from_id(struct drm_device *dev, |
5488dc16 LL |
455 | struct drm_property_blob **blob, |
456 | uint64_t blob_id, | |
457 | ssize_t expected_size, | |
d2a24edb | 458 | ssize_t expected_elem_size, |
5488dc16 LL |
459 | bool *replaced) |
460 | { | |
5488dc16 LL |
461 | struct drm_property_blob *new_blob = NULL; |
462 | ||
463 | if (blob_id != 0) { | |
dafee60d | 464 | new_blob = drm_property_lookup_blob(dev, blob_id); |
5488dc16 LL |
465 | if (new_blob == NULL) |
466 | return -EINVAL; | |
cac5fced | 467 | |
d2a24edb VS |
468 | if (expected_size > 0 && |
469 | new_blob->length != expected_size) { | |
470 | drm_property_blob_put(new_blob); | |
471 | return -EINVAL; | |
472 | } | |
473 | if (expected_elem_size > 0 && | |
474 | new_blob->length % expected_elem_size != 0) { | |
6472e509 | 475 | drm_property_blob_put(new_blob); |
5488dc16 | 476 | return -EINVAL; |
cac5fced | 477 | } |
5488dc16 LL |
478 | } |
479 | ||
5f057ffd | 480 | *replaced |= drm_property_replace_blob(blob, new_blob); |
6472e509 | 481 | drm_property_blob_put(new_blob); |
5488dc16 LL |
482 | |
483 | return 0; | |
484 | } | |
485 | ||
40ecc694 RC |
486 | /** |
487 | * drm_atomic_crtc_set_property - set property on CRTC | |
488 | * @crtc: the drm CRTC to set a property on | |
489 | * @state: the state object to update with the new property value | |
490 | * @property: the property to set | |
491 | * @val: the new property value | |
492 | * | |
d574528a DV |
493 | * This function handles generic/core properties and calls out to driver's |
494 | * &drm_crtc_funcs.atomic_set_property for driver properties. To ensure | |
495 | * consistent behavior you must call this function rather than the driver hook | |
496 | * directly. | |
40ecc694 RC |
497 | * |
498 | * RETURNS: | |
499 | * Zero on success, error code on failure | |
500 | */ | |
501 | int drm_atomic_crtc_set_property(struct drm_crtc *crtc, | |
502 | struct drm_crtc_state *state, struct drm_property *property, | |
503 | uint64_t val) | |
504 | { | |
eab3bbef DV |
505 | struct drm_device *dev = crtc->dev; |
506 | struct drm_mode_config *config = &dev->mode_config; | |
5488dc16 | 507 | bool replaced = false; |
955f3c33 | 508 | int ret; |
eab3bbef | 509 | |
27798365 | 510 | if (property == config->prop_active) |
eab3bbef | 511 | state->active = val; |
955f3c33 DS |
512 | else if (property == config->prop_mode_id) { |
513 | struct drm_property_blob *mode = | |
514 | drm_property_lookup_blob(dev, val); | |
515 | ret = drm_atomic_set_mode_prop_for_crtc(state, mode); | |
6472e509 | 516 | drm_property_blob_put(mode); |
955f3c33 | 517 | return ret; |
5488dc16 | 518 | } else if (property == config->degamma_lut_property) { |
dafee60d | 519 | ret = drm_atomic_replace_property_blob_from_id(dev, |
5488dc16 LL |
520 | &state->degamma_lut, |
521 | val, | |
d2a24edb | 522 | -1, sizeof(struct drm_color_lut), |
5488dc16 | 523 | &replaced); |
add1fa75 | 524 | state->color_mgmt_changed |= replaced; |
5488dc16 LL |
525 | return ret; |
526 | } else if (property == config->ctm_property) { | |
dafee60d | 527 | ret = drm_atomic_replace_property_blob_from_id(dev, |
5488dc16 LL |
528 | &state->ctm, |
529 | val, | |
d2a24edb | 530 | sizeof(struct drm_color_ctm), -1, |
5488dc16 | 531 | &replaced); |
add1fa75 | 532 | state->color_mgmt_changed |= replaced; |
5488dc16 LL |
533 | return ret; |
534 | } else if (property == config->gamma_lut_property) { | |
dafee60d | 535 | ret = drm_atomic_replace_property_blob_from_id(dev, |
5488dc16 LL |
536 | &state->gamma_lut, |
537 | val, | |
d2a24edb | 538 | -1, sizeof(struct drm_color_lut), |
5488dc16 | 539 | &replaced); |
add1fa75 | 540 | state->color_mgmt_changed |= replaced; |
5488dc16 | 541 | return ret; |
beaf5af4 | 542 | } else if (property == config->prop_out_fence_ptr) { |
7e9081c5 | 543 | s32 __user *fence_ptr = u64_to_user_ptr(val); |
beaf5af4 GP |
544 | |
545 | if (!fence_ptr) | |
546 | return 0; | |
547 | ||
548 | if (put_user(-1, fence_ptr)) | |
549 | return -EFAULT; | |
550 | ||
551 | set_out_fence_for_crtc(state->state, crtc, fence_ptr); | |
b6f690ab | 552 | } else if (crtc->funcs->atomic_set_property) { |
40ecc694 | 553 | return crtc->funcs->atomic_set_property(crtc, state, property, val); |
b6f690ab VS |
554 | } else { |
555 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] unknown property [PROP:%d:%s]]\n", | |
556 | crtc->base.id, crtc->name, | |
557 | property->base.id, property->name); | |
27798365 | 558 | return -EINVAL; |
b6f690ab | 559 | } |
27798365 DS |
560 | |
561 | return 0; | |
40ecc694 RC |
562 | } |
563 | EXPORT_SYMBOL(drm_atomic_crtc_set_property); | |
564 | ||
c0714fc9 DV |
565 | /** |
566 | * drm_atomic_crtc_get_property - get property value from CRTC state | |
567 | * @crtc: the drm CRTC to set a property on | |
568 | * @state: the state object to get the property value from | |
569 | * @property: the property to set | |
570 | * @val: return location for the property value | |
571 | * | |
d574528a DV |
572 | * This function handles generic/core properties and calls out to driver's |
573 | * &drm_crtc_funcs.atomic_get_property for driver properties. To ensure | |
574 | * consistent behavior you must call this function rather than the driver hook | |
575 | * directly. | |
c0714fc9 DV |
576 | * |
577 | * RETURNS: | |
578 | * Zero on success, error code on failure | |
ac9c9256 | 579 | */ |
bf22f3be GT |
580 | static int |
581 | drm_atomic_crtc_get_property(struct drm_crtc *crtc, | |
ac9c9256 RC |
582 | const struct drm_crtc_state *state, |
583 | struct drm_property *property, uint64_t *val) | |
584 | { | |
8f164ce4 DS |
585 | struct drm_device *dev = crtc->dev; |
586 | struct drm_mode_config *config = &dev->mode_config; | |
587 | ||
588 | if (property == config->prop_active) | |
589 | *val = state->active; | |
955f3c33 DS |
590 | else if (property == config->prop_mode_id) |
591 | *val = (state->mode_blob) ? state->mode_blob->base.id : 0; | |
5488dc16 LL |
592 | else if (property == config->degamma_lut_property) |
593 | *val = (state->degamma_lut) ? state->degamma_lut->base.id : 0; | |
594 | else if (property == config->ctm_property) | |
595 | *val = (state->ctm) ? state->ctm->base.id : 0; | |
596 | else if (property == config->gamma_lut_property) | |
597 | *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0; | |
beaf5af4 GP |
598 | else if (property == config->prop_out_fence_ptr) |
599 | *val = 0; | |
8f164ce4 | 600 | else if (crtc->funcs->atomic_get_property) |
ac9c9256 | 601 | return crtc->funcs->atomic_get_property(crtc, state, property, val); |
8f164ce4 DS |
602 | else |
603 | return -EINVAL; | |
604 | ||
605 | return 0; | |
ac9c9256 | 606 | } |
ac9c9256 | 607 | |
5e743737 RC |
608 | /** |
609 | * drm_atomic_crtc_check - check crtc state | |
610 | * @crtc: crtc to check | |
611 | * @state: crtc state to check | |
612 | * | |
613 | * Provides core sanity checks for crtc state. | |
614 | * | |
615 | * RETURNS: | |
616 | * Zero on success, error code on failure | |
617 | */ | |
618 | static int drm_atomic_crtc_check(struct drm_crtc *crtc, | |
619 | struct drm_crtc_state *state) | |
620 | { | |
621 | /* NOTE: we explicitly don't enforce constraints such as primary | |
622 | * layer covering entire screen, since that is something we want | |
623 | * to allow (on hw that supports it). For hw that does not, it | |
624 | * should be checked in driver's crtc->atomic_check() vfunc. | |
625 | * | |
626 | * TODO: Add generic modeset state checks once we support those. | |
627 | */ | |
eab3bbef DV |
628 | |
629 | if (state->active && !state->enable) { | |
fa3ab4c2 VS |
630 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] active without enabled\n", |
631 | crtc->base.id, crtc->name); | |
eab3bbef DV |
632 | return -EINVAL; |
633 | } | |
634 | ||
99cf4a29 DS |
635 | /* The state->enable vs. state->mode_blob checks can be WARN_ON, |
636 | * as this is a kernel-internal detail that userspace should never | |
637 | * be able to trigger. */ | |
638 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && | |
639 | WARN_ON(state->enable && !state->mode_blob)) { | |
fa3ab4c2 VS |
640 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled without mode blob\n", |
641 | crtc->base.id, crtc->name); | |
99cf4a29 DS |
642 | return -EINVAL; |
643 | } | |
644 | ||
645 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && | |
646 | WARN_ON(!state->enable && state->mode_blob)) { | |
fa3ab4c2 VS |
647 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] disabled with mode blob\n", |
648 | crtc->base.id, crtc->name); | |
99cf4a29 DS |
649 | return -EINVAL; |
650 | } | |
651 | ||
4cba6850 DV |
652 | /* |
653 | * Reject event generation for when a CRTC is off and stays off. | |
654 | * It wouldn't be hard to implement this, but userspace has a track | |
655 | * record of happily burning through 100% cpu (or worse, crash) when the | |
656 | * display pipe is suspended. To avoid all that fun just reject updates | |
657 | * that ask for events since likely that indicates a bug in the | |
658 | * compositor's drawing loop. This is consistent with the vblank IOCTL | |
659 | * and legacy page_flip IOCTL which also reject service on a disabled | |
660 | * pipe. | |
661 | */ | |
662 | if (state->event && !state->active && !crtc->state->active) { | |
6ac7c548 RK |
663 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requesting event but off\n", |
664 | crtc->base.id, crtc->name); | |
4cba6850 DV |
665 | return -EINVAL; |
666 | } | |
667 | ||
5e743737 RC |
668 | return 0; |
669 | } | |
670 | ||
fceffb32 RC |
671 | static void drm_atomic_crtc_print_state(struct drm_printer *p, |
672 | const struct drm_crtc_state *state) | |
673 | { | |
674 | struct drm_crtc *crtc = state->crtc; | |
675 | ||
676 | drm_printf(p, "crtc[%u]: %s\n", crtc->base.id, crtc->name); | |
677 | drm_printf(p, "\tenable=%d\n", state->enable); | |
678 | drm_printf(p, "\tactive=%d\n", state->active); | |
679 | drm_printf(p, "\tplanes_changed=%d\n", state->planes_changed); | |
680 | drm_printf(p, "\tmode_changed=%d\n", state->mode_changed); | |
681 | drm_printf(p, "\tactive_changed=%d\n", state->active_changed); | |
682 | drm_printf(p, "\tconnectors_changed=%d\n", state->connectors_changed); | |
683 | drm_printf(p, "\tcolor_mgmt_changed=%d\n", state->color_mgmt_changed); | |
684 | drm_printf(p, "\tplane_mask=%x\n", state->plane_mask); | |
685 | drm_printf(p, "\tconnector_mask=%x\n", state->connector_mask); | |
686 | drm_printf(p, "\tencoder_mask=%x\n", state->encoder_mask); | |
687 | drm_printf(p, "\tmode: " DRM_MODE_FMT "\n", DRM_MODE_ARG(&state->mode)); | |
688 | ||
689 | if (crtc->funcs->atomic_print_state) | |
690 | crtc->funcs->atomic_print_state(p, state); | |
691 | } | |
692 | ||
cc4ceb48 DV |
693 | /** |
694 | * drm_atomic_get_plane_state - get plane state | |
695 | * @state: global atomic state object | |
696 | * @plane: plane to get state object for | |
697 | * | |
698 | * This function returns the plane state for the given plane, allocating it if | |
699 | * needed. It will also grab the relevant plane lock to make sure that the state | |
700 | * is consistent. | |
701 | * | |
702 | * Returns: | |
703 | * | |
704 | * Either the allocated state or the error code encoded into the pointer. When | |
705 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the | |
706 | * entire atomic sequence must be restarted. All other errors are fatal. | |
707 | */ | |
708 | struct drm_plane_state * | |
709 | drm_atomic_get_plane_state(struct drm_atomic_state *state, | |
710 | struct drm_plane *plane) | |
711 | { | |
1b26a5e1 | 712 | int ret, index = drm_plane_index(plane); |
cc4ceb48 DV |
713 | struct drm_plane_state *plane_state; |
714 | ||
7f4eaa89 ML |
715 | WARN_ON(!state->acquire_ctx); |
716 | ||
e00fb856 VS |
717 | /* the legacy pointers should never be set */ |
718 | WARN_ON(plane->fb); | |
719 | WARN_ON(plane->old_fb); | |
720 | WARN_ON(plane->crtc); | |
721 | ||
1b26a5e1 ML |
722 | plane_state = drm_atomic_get_existing_plane_state(state, plane); |
723 | if (plane_state) | |
724 | return plane_state; | |
cc4ceb48 | 725 | |
4d02e2de | 726 | ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx); |
cc4ceb48 DV |
727 | if (ret) |
728 | return ERR_PTR(ret); | |
729 | ||
730 | plane_state = plane->funcs->atomic_duplicate_state(plane); | |
731 | if (!plane_state) | |
732 | return ERR_PTR(-ENOMEM); | |
733 | ||
b8b5342b DV |
734 | state->planes[index].state = plane_state; |
735 | state->planes[index].ptr = plane; | |
581e49fe ML |
736 | state->planes[index].old_state = plane->state; |
737 | state->planes[index].new_state = plane_state; | |
cc4ceb48 DV |
738 | plane_state->state = state; |
739 | ||
9f4c97a2 VS |
740 | DRM_DEBUG_ATOMIC("Added [PLANE:%d:%s] %p state to %p\n", |
741 | plane->base.id, plane->name, plane_state, state); | |
cc4ceb48 DV |
742 | |
743 | if (plane_state->crtc) { | |
744 | struct drm_crtc_state *crtc_state; | |
745 | ||
746 | crtc_state = drm_atomic_get_crtc_state(state, | |
747 | plane_state->crtc); | |
748 | if (IS_ERR(crtc_state)) | |
749 | return ERR_CAST(crtc_state); | |
750 | } | |
751 | ||
752 | return plane_state; | |
753 | } | |
754 | EXPORT_SYMBOL(drm_atomic_get_plane_state); | |
755 | ||
40ecc694 RC |
756 | /** |
757 | * drm_atomic_plane_set_property - set property on plane | |
758 | * @plane: the drm plane to set a property on | |
759 | * @state: the state object to update with the new property value | |
760 | * @property: the property to set | |
761 | * @val: the new property value | |
762 | * | |
d574528a DV |
763 | * This function handles generic/core properties and calls out to driver's |
764 | * &drm_plane_funcs.atomic_set_property for driver properties. To ensure | |
765 | * consistent behavior you must call this function rather than the driver hook | |
766 | * directly. | |
40ecc694 RC |
767 | * |
768 | * RETURNS: | |
769 | * Zero on success, error code on failure | |
770 | */ | |
e90271bc | 771 | static int drm_atomic_plane_set_property(struct drm_plane *plane, |
40ecc694 RC |
772 | struct drm_plane_state *state, struct drm_property *property, |
773 | uint64_t val) | |
774 | { | |
6b4959f4 RC |
775 | struct drm_device *dev = plane->dev; |
776 | struct drm_mode_config *config = &dev->mode_config; | |
777 | ||
778 | if (property == config->prop_fb_id) { | |
418da172 | 779 | struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, NULL, val); |
6b4959f4 RC |
780 | drm_atomic_set_fb_for_plane(state, fb); |
781 | if (fb) | |
a4a69da0 | 782 | drm_framebuffer_put(fb); |
96260142 GP |
783 | } else if (property == config->prop_in_fence_fd) { |
784 | if (state->fence) | |
785 | return -EINVAL; | |
786 | ||
787 | if (U642I64(val) == -1) | |
788 | return 0; | |
789 | ||
790 | state->fence = sync_file_get_fence(val); | |
791 | if (!state->fence) | |
792 | return -EINVAL; | |
793 | ||
6b4959f4 | 794 | } else if (property == config->prop_crtc_id) { |
418da172 | 795 | struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val); |
6b4959f4 RC |
796 | return drm_atomic_set_crtc_for_plane(state, crtc); |
797 | } else if (property == config->prop_crtc_x) { | |
798 | state->crtc_x = U642I64(val); | |
799 | } else if (property == config->prop_crtc_y) { | |
800 | state->crtc_y = U642I64(val); | |
801 | } else if (property == config->prop_crtc_w) { | |
802 | state->crtc_w = val; | |
803 | } else if (property == config->prop_crtc_h) { | |
804 | state->crtc_h = val; | |
805 | } else if (property == config->prop_src_x) { | |
806 | state->src_x = val; | |
807 | } else if (property == config->prop_src_y) { | |
808 | state->src_y = val; | |
809 | } else if (property == config->prop_src_w) { | |
810 | state->src_w = val; | |
811 | } else if (property == config->prop_src_h) { | |
812 | state->src_h = val; | |
ae0e2826 MR |
813 | } else if (property == plane->alpha_property) { |
814 | state->alpha = val; | |
6686df8c | 815 | } else if (property == plane->rotation_property) { |
b6f690ab VS |
816 | if (!is_power_of_2(val & DRM_MODE_ROTATE_MASK)) { |
817 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] bad rotation bitmask: 0x%llx\n", | |
818 | plane->base.id, plane->name, val); | |
6e0c7c33 | 819 | return -EINVAL; |
b6f690ab | 820 | } |
1da30627 | 821 | state->rotation = val; |
44d1240d MS |
822 | } else if (property == plane->zpos_property) { |
823 | state->zpos = val; | |
80f690e9 JS |
824 | } else if (property == plane->color_encoding_property) { |
825 | state->color_encoding = val; | |
826 | } else if (property == plane->color_range_property) { | |
827 | state->color_range = val; | |
6b4959f4 RC |
828 | } else if (plane->funcs->atomic_set_property) { |
829 | return plane->funcs->atomic_set_property(plane, state, | |
830 | property, val); | |
831 | } else { | |
b6f690ab VS |
832 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] unknown property [PROP:%d:%s]]\n", |
833 | plane->base.id, plane->name, | |
834 | property->base.id, property->name); | |
6b4959f4 RC |
835 | return -EINVAL; |
836 | } | |
837 | ||
838 | return 0; | |
40ecc694 | 839 | } |
40ecc694 | 840 | |
c0714fc9 DV |
841 | /** |
842 | * drm_atomic_plane_get_property - get property value from plane state | |
843 | * @plane: the drm plane to set a property on | |
844 | * @state: the state object to get the property value from | |
845 | * @property: the property to set | |
846 | * @val: return location for the property value | |
847 | * | |
d574528a DV |
848 | * This function handles generic/core properties and calls out to driver's |
849 | * &drm_plane_funcs.atomic_get_property for driver properties. To ensure | |
850 | * consistent behavior you must call this function rather than the driver hook | |
851 | * directly. | |
c0714fc9 DV |
852 | * |
853 | * RETURNS: | |
854 | * Zero on success, error code on failure | |
ac9c9256 | 855 | */ |
a97df1cc DV |
856 | static int |
857 | drm_atomic_plane_get_property(struct drm_plane *plane, | |
ac9c9256 RC |
858 | const struct drm_plane_state *state, |
859 | struct drm_property *property, uint64_t *val) | |
860 | { | |
6b4959f4 RC |
861 | struct drm_device *dev = plane->dev; |
862 | struct drm_mode_config *config = &dev->mode_config; | |
863 | ||
864 | if (property == config->prop_fb_id) { | |
865 | *val = (state->fb) ? state->fb->base.id : 0; | |
96260142 GP |
866 | } else if (property == config->prop_in_fence_fd) { |
867 | *val = -1; | |
6b4959f4 RC |
868 | } else if (property == config->prop_crtc_id) { |
869 | *val = (state->crtc) ? state->crtc->base.id : 0; | |
870 | } else if (property == config->prop_crtc_x) { | |
871 | *val = I642U64(state->crtc_x); | |
872 | } else if (property == config->prop_crtc_y) { | |
873 | *val = I642U64(state->crtc_y); | |
874 | } else if (property == config->prop_crtc_w) { | |
875 | *val = state->crtc_w; | |
876 | } else if (property == config->prop_crtc_h) { | |
877 | *val = state->crtc_h; | |
878 | } else if (property == config->prop_src_x) { | |
879 | *val = state->src_x; | |
880 | } else if (property == config->prop_src_y) { | |
881 | *val = state->src_y; | |
882 | } else if (property == config->prop_src_w) { | |
883 | *val = state->src_w; | |
884 | } else if (property == config->prop_src_h) { | |
885 | *val = state->src_h; | |
ae0e2826 MR |
886 | } else if (property == plane->alpha_property) { |
887 | *val = state->alpha; | |
6686df8c | 888 | } else if (property == plane->rotation_property) { |
4cda09ca | 889 | *val = state->rotation; |
44d1240d MS |
890 | } else if (property == plane->zpos_property) { |
891 | *val = state->zpos; | |
80f690e9 JS |
892 | } else if (property == plane->color_encoding_property) { |
893 | *val = state->color_encoding; | |
894 | } else if (property == plane->color_range_property) { | |
895 | *val = state->color_range; | |
6b4959f4 | 896 | } else if (plane->funcs->atomic_get_property) { |
ac9c9256 | 897 | return plane->funcs->atomic_get_property(plane, state, property, val); |
6b4959f4 RC |
898 | } else { |
899 | return -EINVAL; | |
900 | } | |
901 | ||
902 | return 0; | |
ac9c9256 | 903 | } |
ac9c9256 | 904 | |
f8aeb41c DV |
905 | static bool |
906 | plane_switching_crtc(struct drm_atomic_state *state, | |
907 | struct drm_plane *plane, | |
908 | struct drm_plane_state *plane_state) | |
909 | { | |
910 | if (!plane->state->crtc || !plane_state->crtc) | |
911 | return false; | |
912 | ||
913 | if (plane->state->crtc == plane_state->crtc) | |
914 | return false; | |
915 | ||
916 | /* This could be refined, but currently there's no helper or driver code | |
917 | * to implement direct switching of active planes nor userspace to take | |
918 | * advantage of more direct plane switching without the intermediate | |
919 | * full OFF state. | |
920 | */ | |
921 | return true; | |
922 | } | |
923 | ||
5e743737 RC |
924 | /** |
925 | * drm_atomic_plane_check - check plane state | |
926 | * @plane: plane to check | |
927 | * @state: plane state to check | |
928 | * | |
929 | * Provides core sanity checks for plane state. | |
930 | * | |
931 | * RETURNS: | |
932 | * Zero on success, error code on failure | |
933 | */ | |
934 | static int drm_atomic_plane_check(struct drm_plane *plane, | |
935 | struct drm_plane_state *state) | |
936 | { | |
937 | unsigned int fb_width, fb_height; | |
ead8610d | 938 | int ret; |
5e743737 RC |
939 | |
940 | /* either *both* CRTC and FB must be set, or neither */ | |
fa5aaeec | 941 | if (state->crtc && !state->fb) { |
b6f690ab VS |
942 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] CRTC set but no FB\n", |
943 | plane->base.id, plane->name); | |
5e743737 | 944 | return -EINVAL; |
fa5aaeec | 945 | } else if (state->fb && !state->crtc) { |
b6f690ab VS |
946 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] FB set but no CRTC\n", |
947 | plane->base.id, plane->name); | |
5e743737 RC |
948 | return -EINVAL; |
949 | } | |
950 | ||
951 | /* if disabled, we don't care about the rest of the state: */ | |
952 | if (!state->crtc) | |
953 | return 0; | |
954 | ||
955 | /* Check whether this plane is usable on this CRTC */ | |
956 | if (!(plane->possible_crtcs & drm_crtc_mask(state->crtc))) { | |
b6f690ab VS |
957 | DRM_DEBUG_ATOMIC("Invalid [CRTC:%d:%s] for [PLANE:%d:%s]\n", |
958 | state->crtc->base.id, state->crtc->name, | |
959 | plane->base.id, plane->name); | |
5e743737 RC |
960 | return -EINVAL; |
961 | } | |
962 | ||
963 | /* Check whether this plane supports the fb pixel format. */ | |
23163a7d VS |
964 | ret = drm_plane_check_pixel_format(plane, state->fb->format->format, |
965 | state->fb->modifier); | |
ead8610d | 966 | if (ret) { |
b3c11ac2 | 967 | struct drm_format_name_buf format_name; |
b6f690ab VS |
968 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] invalid pixel format %s, modifier 0x%llx\n", |
969 | plane->base.id, plane->name, | |
23163a7d VS |
970 | drm_get_format_name(state->fb->format->format, |
971 | &format_name), | |
972 | state->fb->modifier); | |
ead8610d | 973 | return ret; |
5e743737 RC |
974 | } |
975 | ||
976 | /* Give drivers some help against integer overflows */ | |
977 | if (state->crtc_w > INT_MAX || | |
978 | state->crtc_x > INT_MAX - (int32_t) state->crtc_w || | |
979 | state->crtc_h > INT_MAX || | |
980 | state->crtc_y > INT_MAX - (int32_t) state->crtc_h) { | |
b6f690ab VS |
981 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] invalid CRTC coordinates %ux%u+%d+%d\n", |
982 | plane->base.id, plane->name, | |
17a38d9c DV |
983 | state->crtc_w, state->crtc_h, |
984 | state->crtc_x, state->crtc_y); | |
5e743737 RC |
985 | return -ERANGE; |
986 | } | |
987 | ||
988 | fb_width = state->fb->width << 16; | |
989 | fb_height = state->fb->height << 16; | |
990 | ||
991 | /* Make sure source coordinates are inside the fb. */ | |
992 | if (state->src_w > fb_width || | |
993 | state->src_x > fb_width - state->src_w || | |
994 | state->src_h > fb_height || | |
995 | state->src_y > fb_height - state->src_h) { | |
b6f690ab | 996 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] invalid source coordinates " |
0338f0d0 | 997 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u (fb %ux%u)\n", |
b6f690ab | 998 | plane->base.id, plane->name, |
17a38d9c DV |
999 | state->src_w >> 16, ((state->src_w & 0xffff) * 15625) >> 10, |
1000 | state->src_h >> 16, ((state->src_h & 0xffff) * 15625) >> 10, | |
1001 | state->src_x >> 16, ((state->src_x & 0xffff) * 15625) >> 10, | |
0338f0d0 VS |
1002 | state->src_y >> 16, ((state->src_y & 0xffff) * 15625) >> 10, |
1003 | state->fb->width, state->fb->height); | |
5e743737 RC |
1004 | return -ENOSPC; |
1005 | } | |
1006 | ||
f8aeb41c | 1007 | if (plane_switching_crtc(state->state, plane, state)) { |
9f4c97a2 VS |
1008 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] switching CRTC directly\n", |
1009 | plane->base.id, plane->name); | |
f8aeb41c DV |
1010 | return -EINVAL; |
1011 | } | |
1012 | ||
5e743737 RC |
1013 | return 0; |
1014 | } | |
1015 | ||
fceffb32 RC |
1016 | static void drm_atomic_plane_print_state(struct drm_printer *p, |
1017 | const struct drm_plane_state *state) | |
1018 | { | |
1019 | struct drm_plane *plane = state->plane; | |
1020 | struct drm_rect src = drm_plane_state_src(state); | |
1021 | struct drm_rect dest = drm_plane_state_dest(state); | |
1022 | ||
1023 | drm_printf(p, "plane[%u]: %s\n", plane->base.id, plane->name); | |
1024 | drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)"); | |
1025 | drm_printf(p, "\tfb=%u\n", state->fb ? state->fb->base.id : 0); | |
f02b604b NT |
1026 | if (state->fb) |
1027 | drm_framebuffer_print_info(p, 2, state->fb); | |
fceffb32 RC |
1028 | drm_printf(p, "\tcrtc-pos=" DRM_RECT_FMT "\n", DRM_RECT_ARG(&dest)); |
1029 | drm_printf(p, "\tsrc-pos=" DRM_RECT_FP_FMT "\n", DRM_RECT_FP_ARG(&src)); | |
1030 | drm_printf(p, "\trotation=%x\n", state->rotation); | |
56dbbaff VS |
1031 | drm_printf(p, "\tcolor-encoding=%s\n", |
1032 | drm_get_color_encoding_name(state->color_encoding)); | |
1033 | drm_printf(p, "\tcolor-range=%s\n", | |
1034 | drm_get_color_range_name(state->color_range)); | |
fceffb32 RC |
1035 | |
1036 | if (plane->funcs->atomic_print_state) | |
1037 | plane->funcs->atomic_print_state(p, state); | |
1038 | } | |
1039 | ||
da6c0596 DV |
1040 | /** |
1041 | * DOC: handling driver private state | |
1042 | * | |
1043 | * Very often the DRM objects exposed to userspace in the atomic modeset api | |
1044 | * (&drm_connector, &drm_crtc and &drm_plane) do not map neatly to the | |
1045 | * underlying hardware. Especially for any kind of shared resources (e.g. shared | |
1046 | * clocks, scaler units, bandwidth and fifo limits shared among a group of | |
1047 | * planes or CRTCs, and so on) it makes sense to model these as independent | |
1048 | * objects. Drivers then need to do similar state tracking and commit ordering for | |
1049 | * such private (since not exposed to userpace) objects as the atomic core and | |
1050 | * helpers already provide for connectors, planes and CRTCs. | |
1051 | * | |
1052 | * To make this easier on drivers the atomic core provides some support to track | |
1053 | * driver private state objects using struct &drm_private_obj, with the | |
1054 | * associated state struct &drm_private_state. | |
1055 | * | |
1056 | * Similar to userspace-exposed objects, private state structures can be | |
1057 | * acquired by calling drm_atomic_get_private_obj_state(). Since this function | |
1058 | * does not take care of locking, drivers should wrap it for each type of | |
1059 | * private state object they have with the required call to drm_modeset_lock() | |
1060 | * for the corresponding &drm_modeset_lock. | |
1061 | * | |
1062 | * All private state structures contained in a &drm_atomic_state update can be | |
1063 | * iterated using for_each_oldnew_private_obj_in_state(), | |
1064 | * for_each_new_private_obj_in_state() and for_each_old_private_obj_in_state(). | |
1065 | * Drivers are recommended to wrap these for each type of driver private state | |
1066 | * object they have, filtering on &drm_private_obj.funcs using for_each_if(), at | |
1067 | * least if they want to iterate over all objects of a given type. | |
1068 | * | |
1069 | * An earlier way to handle driver private state was by subclassing struct | |
1070 | * &drm_atomic_state. But since that encourages non-standard ways to implement | |
1071 | * the check/commit split atomic requires (by using e.g. "check and rollback or | |
1072 | * commit instead" of "duplicate state, check, then either commit or release | |
1073 | * duplicated state) it is deprecated in favour of using &drm_private_state. | |
1074 | */ | |
1075 | ||
a4370c77 VS |
1076 | /** |
1077 | * drm_atomic_private_obj_init - initialize private object | |
1078 | * @obj: private object | |
1079 | * @state: initial private object state | |
1080 | * @funcs: pointer to the struct of function pointers that identify the object | |
1081 | * type | |
1082 | * | |
1083 | * Initialize the private object, which can be embedded into any | |
1084 | * driver private object that needs its own atomic state. | |
1085 | */ | |
1086 | void | |
1087 | drm_atomic_private_obj_init(struct drm_private_obj *obj, | |
1088 | struct drm_private_state *state, | |
1089 | const struct drm_private_state_funcs *funcs) | |
1090 | { | |
1091 | memset(obj, 0, sizeof(*obj)); | |
1092 | ||
1093 | obj->state = state; | |
1094 | obj->funcs = funcs; | |
1095 | } | |
1096 | EXPORT_SYMBOL(drm_atomic_private_obj_init); | |
1097 | ||
1098 | /** | |
1099 | * drm_atomic_private_obj_fini - finalize private object | |
1100 | * @obj: private object | |
1101 | * | |
1102 | * Finalize the private object. | |
1103 | */ | |
1104 | void | |
1105 | drm_atomic_private_obj_fini(struct drm_private_obj *obj) | |
1106 | { | |
1107 | obj->funcs->atomic_destroy_state(obj, obj->state); | |
1108 | } | |
1109 | EXPORT_SYMBOL(drm_atomic_private_obj_fini); | |
1110 | ||
b430c27a PD |
1111 | /** |
1112 | * drm_atomic_get_private_obj_state - get private object state | |
1113 | * @state: global atomic state | |
1114 | * @obj: private object to get the state for | |
b430c27a PD |
1115 | * |
1116 | * This function returns the private object state for the given private object, | |
1117 | * allocating the state if needed. It does not grab any locks as the caller is | |
1118 | * expected to care of any required locking. | |
1119 | * | |
1120 | * RETURNS: | |
1121 | * | |
1122 | * Either the allocated state or the error code encoded into a pointer. | |
1123 | */ | |
a4370c77 VS |
1124 | struct drm_private_state * |
1125 | drm_atomic_get_private_obj_state(struct drm_atomic_state *state, | |
1126 | struct drm_private_obj *obj) | |
b430c27a PD |
1127 | { |
1128 | int index, num_objs, i; | |
1129 | size_t size; | |
1130 | struct __drm_private_objs_state *arr; | |
a4370c77 | 1131 | struct drm_private_state *obj_state; |
b430c27a PD |
1132 | |
1133 | for (i = 0; i < state->num_private_objs; i++) | |
a4370c77 VS |
1134 | if (obj == state->private_objs[i].ptr) |
1135 | return state->private_objs[i].state; | |
b430c27a PD |
1136 | |
1137 | num_objs = state->num_private_objs + 1; | |
1138 | size = sizeof(*state->private_objs) * num_objs; | |
1139 | arr = krealloc(state->private_objs, size, GFP_KERNEL); | |
1140 | if (!arr) | |
1141 | return ERR_PTR(-ENOMEM); | |
1142 | ||
1143 | state->private_objs = arr; | |
1144 | index = state->num_private_objs; | |
1145 | memset(&state->private_objs[index], 0, sizeof(*state->private_objs)); | |
1146 | ||
a4370c77 VS |
1147 | obj_state = obj->funcs->atomic_duplicate_state(obj); |
1148 | if (!obj_state) | |
b430c27a PD |
1149 | return ERR_PTR(-ENOMEM); |
1150 | ||
a4370c77 VS |
1151 | state->private_objs[index].state = obj_state; |
1152 | state->private_objs[index].old_state = obj->state; | |
1153 | state->private_objs[index].new_state = obj_state; | |
1154 | state->private_objs[index].ptr = obj; | |
e89ea355 | 1155 | obj_state->state = state; |
a4370c77 | 1156 | |
b430c27a PD |
1157 | state->num_private_objs = num_objs; |
1158 | ||
a4370c77 VS |
1159 | DRM_DEBUG_ATOMIC("Added new private object %p state %p to %p\n", |
1160 | obj, obj_state, state); | |
b430c27a | 1161 | |
a4370c77 | 1162 | return obj_state; |
b430c27a PD |
1163 | } |
1164 | EXPORT_SYMBOL(drm_atomic_get_private_obj_state); | |
1165 | ||
cc4ceb48 DV |
1166 | /** |
1167 | * drm_atomic_get_connector_state - get connector state | |
1168 | * @state: global atomic state object | |
1169 | * @connector: connector to get state object for | |
1170 | * | |
1171 | * This function returns the connector state for the given connector, | |
1172 | * allocating it if needed. It will also grab the relevant connector lock to | |
1173 | * make sure that the state is consistent. | |
1174 | * | |
1175 | * Returns: | |
1176 | * | |
1177 | * Either the allocated state or the error code encoded into the pointer. When | |
1178 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the | |
1179 | * entire atomic sequence must be restarted. All other errors are fatal. | |
1180 | */ | |
1181 | struct drm_connector_state * | |
1182 | drm_atomic_get_connector_state(struct drm_atomic_state *state, | |
1183 | struct drm_connector *connector) | |
1184 | { | |
1185 | int ret, index; | |
1186 | struct drm_mode_config *config = &connector->dev->mode_config; | |
1187 | struct drm_connector_state *connector_state; | |
1188 | ||
7f4eaa89 ML |
1189 | WARN_ON(!state->acquire_ctx); |
1190 | ||
c7eb76f4 DV |
1191 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
1192 | if (ret) | |
1193 | return ERR_PTR(ret); | |
1194 | ||
cc4ceb48 DV |
1195 | index = drm_connector_index(connector); |
1196 | ||
f52b69f1 | 1197 | if (index >= state->num_connector) { |
63e83c1d | 1198 | struct __drm_connnectors_state *c; |
5fff80bb ML |
1199 | int alloc = max(index + 1, config->num_connector); |
1200 | ||
1201 | c = krealloc(state->connectors, alloc * sizeof(*state->connectors), GFP_KERNEL); | |
1202 | if (!c) | |
1203 | return ERR_PTR(-ENOMEM); | |
1204 | ||
1205 | state->connectors = c; | |
1206 | memset(&state->connectors[state->num_connector], 0, | |
1207 | sizeof(*state->connectors) * (alloc - state->num_connector)); | |
1208 | ||
5fff80bb | 1209 | state->num_connector = alloc; |
f52b69f1 DV |
1210 | } |
1211 | ||
63e83c1d DV |
1212 | if (state->connectors[index].state) |
1213 | return state->connectors[index].state; | |
cc4ceb48 | 1214 | |
cc4ceb48 DV |
1215 | connector_state = connector->funcs->atomic_duplicate_state(connector); |
1216 | if (!connector_state) | |
1217 | return ERR_PTR(-ENOMEM); | |
1218 | ||
ad093607 | 1219 | drm_connector_get(connector); |
63e83c1d | 1220 | state->connectors[index].state = connector_state; |
581e49fe ML |
1221 | state->connectors[index].old_state = connector->state; |
1222 | state->connectors[index].new_state = connector_state; | |
63e83c1d | 1223 | state->connectors[index].ptr = connector; |
cc4ceb48 DV |
1224 | connector_state->state = state; |
1225 | ||
6ac7c548 RK |
1226 | DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d:%s] %p state to %p\n", |
1227 | connector->base.id, connector->name, | |
1228 | connector_state, state); | |
cc4ceb48 DV |
1229 | |
1230 | if (connector_state->crtc) { | |
1231 | struct drm_crtc_state *crtc_state; | |
1232 | ||
1233 | crtc_state = drm_atomic_get_crtc_state(state, | |
1234 | connector_state->crtc); | |
1235 | if (IS_ERR(crtc_state)) | |
1236 | return ERR_CAST(crtc_state); | |
1237 | } | |
1238 | ||
1239 | return connector_state; | |
1240 | } | |
1241 | EXPORT_SYMBOL(drm_atomic_get_connector_state); | |
1242 | ||
40ecc694 RC |
1243 | /** |
1244 | * drm_atomic_connector_set_property - set property on connector. | |
1245 | * @connector: the drm connector to set a property on | |
1246 | * @state: the state object to update with the new property value | |
1247 | * @property: the property to set | |
1248 | * @val: the new property value | |
1249 | * | |
d574528a DV |
1250 | * This function handles generic/core properties and calls out to driver's |
1251 | * &drm_connector_funcs.atomic_set_property for driver properties. To ensure | |
1252 | * consistent behavior you must call this function rather than the driver hook | |
1253 | * directly. | |
40ecc694 RC |
1254 | * |
1255 | * RETURNS: | |
1256 | * Zero on success, error code on failure | |
1257 | */ | |
482b0e3c | 1258 | static int drm_atomic_connector_set_property(struct drm_connector *connector, |
40ecc694 RC |
1259 | struct drm_connector_state *state, struct drm_property *property, |
1260 | uint64_t val) | |
1261 | { | |
1262 | struct drm_device *dev = connector->dev; | |
1263 | struct drm_mode_config *config = &dev->mode_config; | |
1264 | ||
ae16c597 | 1265 | if (property == config->prop_crtc_id) { |
418da172 | 1266 | struct drm_crtc *crtc = drm_crtc_find(dev, NULL, val); |
ae16c597 RC |
1267 | return drm_atomic_set_crtc_for_connector(state, crtc); |
1268 | } else if (property == config->dpms_property) { | |
40ecc694 RC |
1269 | /* setting DPMS property requires special handling, which |
1270 | * is done in legacy setprop path for us. Disallow (for | |
1271 | * now?) atomic writes to DPMS property: | |
1272 | */ | |
1273 | return -EINVAL; | |
299a16b1 BB |
1274 | } else if (property == config->tv_select_subconnector_property) { |
1275 | state->tv.subconnector = val; | |
1276 | } else if (property == config->tv_left_margin_property) { | |
1277 | state->tv.margins.left = val; | |
1278 | } else if (property == config->tv_right_margin_property) { | |
1279 | state->tv.margins.right = val; | |
1280 | } else if (property == config->tv_top_margin_property) { | |
1281 | state->tv.margins.top = val; | |
1282 | } else if (property == config->tv_bottom_margin_property) { | |
1283 | state->tv.margins.bottom = val; | |
1284 | } else if (property == config->tv_mode_property) { | |
1285 | state->tv.mode = val; | |
1286 | } else if (property == config->tv_brightness_property) { | |
1287 | state->tv.brightness = val; | |
1288 | } else if (property == config->tv_contrast_property) { | |
1289 | state->tv.contrast = val; | |
1290 | } else if (property == config->tv_flicker_reduction_property) { | |
1291 | state->tv.flicker_reduction = val; | |
1292 | } else if (property == config->tv_overscan_property) { | |
1293 | state->tv.overscan = val; | |
1294 | } else if (property == config->tv_saturation_property) { | |
1295 | state->tv.saturation = val; | |
1296 | } else if (property == config->tv_hue_property) { | |
1297 | state->tv.hue = val; | |
40ee6fbe MN |
1298 | } else if (property == config->link_status_property) { |
1299 | /* Never downgrade from GOOD to BAD on userspace's request here, | |
1300 | * only hw issues can do that. | |
1301 | * | |
1302 | * For an atomic property the userspace doesn't need to be able | |
1303 | * to understand all the properties, but needs to be able to | |
1304 | * restore the state it wants on VT switch. So if the userspace | |
1305 | * tries to change the link_status from GOOD to BAD, driver | |
1306 | * silently rejects it and returns a 0. This prevents userspace | |
1307 | * from accidently breaking the display when it restores the | |
1308 | * state. | |
1309 | */ | |
1310 | if (state->link_status != DRM_LINK_STATUS_GOOD) | |
1311 | state->link_status = val; | |
0e9f25d0 ML |
1312 | } else if (property == config->aspect_ratio_property) { |
1313 | state->picture_aspect_ratio = val; | |
50525c33 SL |
1314 | } else if (property == config->content_type_property) { |
1315 | state->content_type = val; | |
8f6e1e22 ML |
1316 | } else if (property == connector->scaling_mode_property) { |
1317 | state->scaling_mode = val; | |
24557865 SP |
1318 | } else if (property == connector->content_protection_property) { |
1319 | if (val == DRM_MODE_CONTENT_PROTECTION_ENABLED) { | |
1320 | DRM_DEBUG_KMS("only drivers can set CP Enabled\n"); | |
1321 | return -EINVAL; | |
1322 | } | |
1323 | state->content_protection = val; | |
40ecc694 RC |
1324 | } else if (connector->funcs->atomic_set_property) { |
1325 | return connector->funcs->atomic_set_property(connector, | |
1326 | state, property, val); | |
1327 | } else { | |
b6f690ab VS |
1328 | DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] unknown property [PROP:%d:%s]]\n", |
1329 | connector->base.id, connector->name, | |
1330 | property->base.id, property->name); | |
40ecc694 RC |
1331 | return -EINVAL; |
1332 | } | |
299a16b1 BB |
1333 | |
1334 | return 0; | |
40ecc694 | 1335 | } |
40ecc694 | 1336 | |
fceffb32 RC |
1337 | static void drm_atomic_connector_print_state(struct drm_printer *p, |
1338 | const struct drm_connector_state *state) | |
1339 | { | |
1340 | struct drm_connector *connector = state->connector; | |
1341 | ||
1342 | drm_printf(p, "connector[%u]: %s\n", connector->base.id, connector->name); | |
1343 | drm_printf(p, "\tcrtc=%s\n", state->crtc ? state->crtc->name : "(null)"); | |
1344 | ||
1345 | if (connector->funcs->atomic_print_state) | |
1346 | connector->funcs->atomic_print_state(p, state); | |
1347 | } | |
1348 | ||
c0714fc9 DV |
1349 | /** |
1350 | * drm_atomic_connector_get_property - get property value from connector state | |
1351 | * @connector: the drm connector to set a property on | |
1352 | * @state: the state object to get the property value from | |
1353 | * @property: the property to set | |
1354 | * @val: return location for the property value | |
1355 | * | |
d574528a DV |
1356 | * This function handles generic/core properties and calls out to driver's |
1357 | * &drm_connector_funcs.atomic_get_property for driver properties. To ensure | |
1358 | * consistent behavior you must call this function rather than the driver hook | |
1359 | * directly. | |
c0714fc9 DV |
1360 | * |
1361 | * RETURNS: | |
1362 | * Zero on success, error code on failure | |
ac9c9256 | 1363 | */ |
a97df1cc DV |
1364 | static int |
1365 | drm_atomic_connector_get_property(struct drm_connector *connector, | |
ac9c9256 RC |
1366 | const struct drm_connector_state *state, |
1367 | struct drm_property *property, uint64_t *val) | |
1368 | { | |
1369 | struct drm_device *dev = connector->dev; | |
1370 | struct drm_mode_config *config = &dev->mode_config; | |
1371 | ||
ae16c597 RC |
1372 | if (property == config->prop_crtc_id) { |
1373 | *val = (state->crtc) ? state->crtc->base.id : 0; | |
1374 | } else if (property == config->dpms_property) { | |
ac9c9256 | 1375 | *val = connector->dpms; |
299a16b1 BB |
1376 | } else if (property == config->tv_select_subconnector_property) { |
1377 | *val = state->tv.subconnector; | |
1378 | } else if (property == config->tv_left_margin_property) { | |
1379 | *val = state->tv.margins.left; | |
1380 | } else if (property == config->tv_right_margin_property) { | |
1381 | *val = state->tv.margins.right; | |
1382 | } else if (property == config->tv_top_margin_property) { | |
1383 | *val = state->tv.margins.top; | |
1384 | } else if (property == config->tv_bottom_margin_property) { | |
1385 | *val = state->tv.margins.bottom; | |
1386 | } else if (property == config->tv_mode_property) { | |
1387 | *val = state->tv.mode; | |
1388 | } else if (property == config->tv_brightness_property) { | |
1389 | *val = state->tv.brightness; | |
1390 | } else if (property == config->tv_contrast_property) { | |
1391 | *val = state->tv.contrast; | |
1392 | } else if (property == config->tv_flicker_reduction_property) { | |
1393 | *val = state->tv.flicker_reduction; | |
1394 | } else if (property == config->tv_overscan_property) { | |
1395 | *val = state->tv.overscan; | |
1396 | } else if (property == config->tv_saturation_property) { | |
1397 | *val = state->tv.saturation; | |
1398 | } else if (property == config->tv_hue_property) { | |
1399 | *val = state->tv.hue; | |
40ee6fbe MN |
1400 | } else if (property == config->link_status_property) { |
1401 | *val = state->link_status; | |
0e9f25d0 ML |
1402 | } else if (property == config->aspect_ratio_property) { |
1403 | *val = state->picture_aspect_ratio; | |
50525c33 SL |
1404 | } else if (property == config->content_type_property) { |
1405 | *val = state->content_type; | |
8f6e1e22 ML |
1406 | } else if (property == connector->scaling_mode_property) { |
1407 | *val = state->scaling_mode; | |
24557865 SP |
1408 | } else if (property == connector->content_protection_property) { |
1409 | *val = state->content_protection; | |
ac9c9256 RC |
1410 | } else if (connector->funcs->atomic_get_property) { |
1411 | return connector->funcs->atomic_get_property(connector, | |
1412 | state, property, val); | |
1413 | } else { | |
1414 | return -EINVAL; | |
1415 | } | |
1416 | ||
1417 | return 0; | |
1418 | } | |
ac9c9256 | 1419 | |
88a48e29 RC |
1420 | int drm_atomic_get_property(struct drm_mode_object *obj, |
1421 | struct drm_property *property, uint64_t *val) | |
1422 | { | |
1423 | struct drm_device *dev = property->dev; | |
1424 | int ret; | |
1425 | ||
1426 | switch (obj->type) { | |
1427 | case DRM_MODE_OBJECT_CONNECTOR: { | |
1428 | struct drm_connector *connector = obj_to_connector(obj); | |
1429 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); | |
1430 | ret = drm_atomic_connector_get_property(connector, | |
1431 | connector->state, property, val); | |
1432 | break; | |
1433 | } | |
1434 | case DRM_MODE_OBJECT_CRTC: { | |
1435 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
1436 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); | |
1437 | ret = drm_atomic_crtc_get_property(crtc, | |
1438 | crtc->state, property, val); | |
1439 | break; | |
1440 | } | |
1441 | case DRM_MODE_OBJECT_PLANE: { | |
1442 | struct drm_plane *plane = obj_to_plane(obj); | |
1443 | WARN_ON(!drm_modeset_is_locked(&plane->mutex)); | |
1444 | ret = drm_atomic_plane_get_property(plane, | |
1445 | plane->state, property, val); | |
1446 | break; | |
1447 | } | |
1448 | default: | |
1449 | ret = -EINVAL; | |
1450 | break; | |
1451 | } | |
1452 | ||
1453 | return ret; | |
1454 | } | |
1455 | ||
cc4ceb48 DV |
1456 | /** |
1457 | * drm_atomic_set_crtc_for_plane - set crtc for plane | |
07cc0ef6 | 1458 | * @plane_state: the plane whose incoming state to update |
cc4ceb48 DV |
1459 | * @crtc: crtc to use for the plane |
1460 | * | |
1461 | * Changing the assigned crtc for a plane requires us to grab the lock and state | |
1462 | * for the new crtc, as needed. This function takes care of all these details | |
1463 | * besides updating the pointer in the state object itself. | |
1464 | * | |
1465 | * Returns: | |
1466 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1467 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1468 | * sequence must be restarted. All other errors are fatal. | |
1469 | */ | |
1470 | int | |
07cc0ef6 DV |
1471 | drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, |
1472 | struct drm_crtc *crtc) | |
cc4ceb48 | 1473 | { |
07cc0ef6 | 1474 | struct drm_plane *plane = plane_state->plane; |
cc4ceb48 | 1475 | struct drm_crtc_state *crtc_state; |
fc2a69f3 SST |
1476 | /* Nothing to do for same crtc*/ |
1477 | if (plane_state->crtc == crtc) | |
1478 | return 0; | |
6ddd388a RC |
1479 | if (plane_state->crtc) { |
1480 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, | |
1481 | plane_state->crtc); | |
1482 | if (WARN_ON(IS_ERR(crtc_state))) | |
1483 | return PTR_ERR(crtc_state); | |
1484 | ||
1485 | crtc_state->plane_mask &= ~(1 << drm_plane_index(plane)); | |
1486 | } | |
1487 | ||
1488 | plane_state->crtc = crtc; | |
1489 | ||
cc4ceb48 DV |
1490 | if (crtc) { |
1491 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, | |
1492 | crtc); | |
1493 | if (IS_ERR(crtc_state)) | |
1494 | return PTR_ERR(crtc_state); | |
6ddd388a | 1495 | crtc_state->plane_mask |= (1 << drm_plane_index(plane)); |
cc4ceb48 DV |
1496 | } |
1497 | ||
cc4ceb48 | 1498 | if (crtc) |
b6f690ab VS |
1499 | DRM_DEBUG_ATOMIC("Link [PLANE:%d:%s] state %p to [CRTC:%d:%s]\n", |
1500 | plane->base.id, plane->name, plane_state, | |
1501 | crtc->base.id, crtc->name); | |
cc4ceb48 | 1502 | else |
b6f690ab VS |
1503 | DRM_DEBUG_ATOMIC("Link [PLANE:%d:%s] state %p to [NOCRTC]\n", |
1504 | plane->base.id, plane->name, plane_state); | |
cc4ceb48 DV |
1505 | |
1506 | return 0; | |
1507 | } | |
1508 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane); | |
1509 | ||
321ebf04 | 1510 | /** |
16d78bc2 | 1511 | * drm_atomic_set_fb_for_plane - set framebuffer for plane |
321ebf04 DV |
1512 | * @plane_state: atomic state object for the plane |
1513 | * @fb: fb to use for the plane | |
1514 | * | |
1515 | * Changing the assigned framebuffer for a plane requires us to grab a reference | |
1516 | * to the new fb and drop the reference to the old fb, if there is one. This | |
1517 | * function takes care of all these details besides updating the pointer in the | |
1518 | * state object itself. | |
1519 | */ | |
1520 | void | |
1521 | drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state, | |
1522 | struct drm_framebuffer *fb) | |
1523 | { | |
b6f690ab VS |
1524 | struct drm_plane *plane = plane_state->plane; |
1525 | ||
321ebf04 | 1526 | if (fb) |
b6f690ab VS |
1527 | DRM_DEBUG_ATOMIC("Set [FB:%d] for [PLANE:%d:%s] state %p\n", |
1528 | fb->base.id, plane->base.id, plane->name, | |
17a38d9c | 1529 | plane_state); |
b6f690ab VS |
1530 | else |
1531 | DRM_DEBUG_ATOMIC("Set [NOFB] for [PLANE:%d:%s] state %p\n", | |
1532 | plane->base.id, plane->name, plane_state); | |
389f78b3 CW |
1533 | |
1534 | drm_framebuffer_assign(&plane_state->fb, fb); | |
321ebf04 DV |
1535 | } |
1536 | EXPORT_SYMBOL(drm_atomic_set_fb_for_plane); | |
1537 | ||
13b55664 GP |
1538 | /** |
1539 | * drm_atomic_set_fence_for_plane - set fence for plane | |
1540 | * @plane_state: atomic state object for the plane | |
1541 | * @fence: dma_fence to use for the plane | |
1542 | * | |
1543 | * Helper to setup the plane_state fence in case it is not set yet. | |
1544 | * By using this drivers doesn't need to worry if the user choose | |
1545 | * implicit or explicit fencing. | |
1546 | * | |
1547 | * This function will not set the fence to the state if it was set | |
d574528a DV |
1548 | * via explicit fencing interfaces on the atomic ioctl. In that case it will |
1549 | * drop the reference to the fence as we are not storing it anywhere. | |
1550 | * Otherwise, if &drm_plane_state.fence is not set this function we just set it | |
1551 | * with the received implicit fence. In both cases this function consumes a | |
1552 | * reference for @fence. | |
30d23f22 DV |
1553 | * |
1554 | * This way explicit fencing can be used to overrule implicit fencing, which is | |
1555 | * important to make explicit fencing use-cases work: One example is using one | |
1556 | * buffer for 2 screens with different refresh rates. Implicit fencing will | |
1557 | * clamp rendering to the refresh rate of the slower screen, whereas explicit | |
1558 | * fence allows 2 independent render and display loops on a single buffer. If a | |
1559 | * driver allows obeys both implicit and explicit fences for plane updates, then | |
1560 | * it will break all the benefits of explicit fencing. | |
13b55664 GP |
1561 | */ |
1562 | void | |
1563 | drm_atomic_set_fence_for_plane(struct drm_plane_state *plane_state, | |
1564 | struct dma_fence *fence) | |
1565 | { | |
1566 | if (plane_state->fence) { | |
1567 | dma_fence_put(fence); | |
1568 | return; | |
1569 | } | |
1570 | ||
1571 | plane_state->fence = fence; | |
1572 | } | |
1573 | EXPORT_SYMBOL(drm_atomic_set_fence_for_plane); | |
1574 | ||
cc4ceb48 DV |
1575 | /** |
1576 | * drm_atomic_set_crtc_for_connector - set crtc for connector | |
1577 | * @conn_state: atomic state object for the connector | |
1578 | * @crtc: crtc to use for the connector | |
1579 | * | |
1580 | * Changing the assigned crtc for a connector requires us to grab the lock and | |
1581 | * state for the new crtc, as needed. This function takes care of all these | |
1582 | * details besides updating the pointer in the state object itself. | |
1583 | * | |
1584 | * Returns: | |
1585 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1586 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1587 | * sequence must be restarted. All other errors are fatal. | |
1588 | */ | |
1589 | int | |
1590 | drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, | |
1591 | struct drm_crtc *crtc) | |
1592 | { | |
b6f690ab | 1593 | struct drm_connector *connector = conn_state->connector; |
cc4ceb48 DV |
1594 | struct drm_crtc_state *crtc_state; |
1595 | ||
e2d800a3 CW |
1596 | if (conn_state->crtc == crtc) |
1597 | return 0; | |
1598 | ||
1599 | if (conn_state->crtc) { | |
b4d93679 ML |
1600 | crtc_state = drm_atomic_get_new_crtc_state(conn_state->state, |
1601 | conn_state->crtc); | |
4cd9fa52 ML |
1602 | |
1603 | crtc_state->connector_mask &= | |
1604 | ~(1 << drm_connector_index(conn_state->connector)); | |
e2d800a3 | 1605 | |
ad093607 | 1606 | drm_connector_put(conn_state->connector); |
e2d800a3 | 1607 | conn_state->crtc = NULL; |
4cd9fa52 ML |
1608 | } |
1609 | ||
cc4ceb48 DV |
1610 | if (crtc) { |
1611 | crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc); | |
1612 | if (IS_ERR(crtc_state)) | |
1613 | return PTR_ERR(crtc_state); | |
4cd9fa52 ML |
1614 | |
1615 | crtc_state->connector_mask |= | |
1616 | 1 << drm_connector_index(conn_state->connector); | |
cc4ceb48 | 1617 | |
ad093607 | 1618 | drm_connector_get(conn_state->connector); |
e2d800a3 | 1619 | conn_state->crtc = crtc; |
cc4ceb48 | 1620 | |
b6f690ab VS |
1621 | DRM_DEBUG_ATOMIC("Link [CONNECTOR:%d:%s] state %p to [CRTC:%d:%s]\n", |
1622 | connector->base.id, connector->name, | |
fa3ab4c2 | 1623 | conn_state, crtc->base.id, crtc->name); |
e2d800a3 | 1624 | } else { |
b6f690ab VS |
1625 | DRM_DEBUG_ATOMIC("Link [CONNECTOR:%d:%s] state %p to [NOCRTC]\n", |
1626 | connector->base.id, connector->name, | |
17a38d9c | 1627 | conn_state); |
e2d800a3 | 1628 | } |
cc4ceb48 DV |
1629 | |
1630 | return 0; | |
1631 | } | |
1632 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector); | |
1633 | ||
1634 | /** | |
1635 | * drm_atomic_add_affected_connectors - add connectors for crtc | |
1636 | * @state: atomic state | |
1637 | * @crtc: DRM crtc | |
1638 | * | |
1639 | * This function walks the current configuration and adds all connectors | |
1640 | * currently using @crtc to the atomic configuration @state. Note that this | |
1641 | * function must acquire the connection mutex. This can potentially cause | |
1642 | * unneeded seralization if the update is just for the planes on one crtc. Hence | |
1643 | * drivers and helpers should only call this when really needed (e.g. when a | |
1644 | * full modeset needs to happen due to some change). | |
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_connectors(struct drm_atomic_state *state, | |
1653 | struct drm_crtc *crtc) | |
1654 | { | |
1655 | struct drm_mode_config *config = &state->dev->mode_config; | |
1656 | struct drm_connector *connector; | |
1657 | struct drm_connector_state *conn_state; | |
613051da | 1658 | struct drm_connector_list_iter conn_iter; |
5351bbdd | 1659 | struct drm_crtc_state *crtc_state; |
cc4ceb48 DV |
1660 | int ret; |
1661 | ||
5351bbdd ML |
1662 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
1663 | if (IS_ERR(crtc_state)) | |
1664 | return PTR_ERR(crtc_state); | |
1665 | ||
cc4ceb48 DV |
1666 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
1667 | if (ret) | |
1668 | return ret; | |
1669 | ||
fa3ab4c2 VS |
1670 | DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d:%s] to %p\n", |
1671 | crtc->base.id, crtc->name, state); | |
cc4ceb48 DV |
1672 | |
1673 | /* | |
5351bbdd ML |
1674 | * Changed connectors are already in @state, so only need to look |
1675 | * at the connector_mask in crtc_state. | |
cc4ceb48 | 1676 | */ |
b982dab1 | 1677 | drm_connector_list_iter_begin(state->dev, &conn_iter); |
613051da | 1678 | drm_for_each_connector_iter(connector, &conn_iter) { |
5351bbdd | 1679 | if (!(crtc_state->connector_mask & (1 << drm_connector_index(connector)))) |
cc4ceb48 DV |
1680 | continue; |
1681 | ||
1682 | conn_state = drm_atomic_get_connector_state(state, connector); | |
613051da | 1683 | if (IS_ERR(conn_state)) { |
b982dab1 | 1684 | drm_connector_list_iter_end(&conn_iter); |
cc4ceb48 | 1685 | return PTR_ERR(conn_state); |
613051da | 1686 | } |
cc4ceb48 | 1687 | } |
b982dab1 | 1688 | drm_connector_list_iter_end(&conn_iter); |
cc4ceb48 DV |
1689 | |
1690 | return 0; | |
1691 | } | |
1692 | EXPORT_SYMBOL(drm_atomic_add_affected_connectors); | |
1693 | ||
e01e9f75 ML |
1694 | /** |
1695 | * drm_atomic_add_affected_planes - add planes for crtc | |
1696 | * @state: atomic state | |
1697 | * @crtc: DRM crtc | |
1698 | * | |
1699 | * This function walks the current configuration and adds all planes | |
1700 | * currently used by @crtc to the atomic configuration @state. This is useful | |
1701 | * when an atomic commit also needs to check all currently enabled plane on | |
1702 | * @crtc, e.g. when changing the mode. It's also useful when re-enabling a CRTC | |
1703 | * to avoid special code to force-enable all planes. | |
1704 | * | |
1705 | * Since acquiring a plane state will always also acquire the w/w mutex of the | |
1706 | * current CRTC for that plane (if there is any) adding all the plane states for | |
1707 | * a CRTC will not reduce parallism of atomic updates. | |
1708 | * | |
1709 | * Returns: | |
1710 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
1711 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
1712 | * sequence must be restarted. All other errors are fatal. | |
1713 | */ | |
1714 | int | |
1715 | drm_atomic_add_affected_planes(struct drm_atomic_state *state, | |
1716 | struct drm_crtc *crtc) | |
1717 | { | |
1718 | struct drm_plane *plane; | |
1719 | ||
b4d93679 | 1720 | WARN_ON(!drm_atomic_get_new_crtc_state(state, crtc)); |
e01e9f75 | 1721 | |
b6f690ab VS |
1722 | DRM_DEBUG_ATOMIC("Adding all current planes for [CRTC:%d:%s] to %p\n", |
1723 | crtc->base.id, crtc->name, state); | |
1724 | ||
e01e9f75 ML |
1725 | drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) { |
1726 | struct drm_plane_state *plane_state = | |
1727 | drm_atomic_get_plane_state(state, plane); | |
1728 | ||
1729 | if (IS_ERR(plane_state)) | |
1730 | return PTR_ERR(plane_state); | |
1731 | } | |
1732 | return 0; | |
1733 | } | |
1734 | EXPORT_SYMBOL(drm_atomic_add_affected_planes); | |
1735 | ||
cc4ceb48 DV |
1736 | /** |
1737 | * drm_atomic_check_only - check whether a given config would work | |
1738 | * @state: atomic configuration to check | |
1739 | * | |
1740 | * Note that this function can return -EDEADLK if the driver needed to acquire | |
1741 | * more locks but encountered a deadlock. The caller must then do the usual w/w | |
1742 | * backoff dance and restart. All other errors are fatal. | |
1743 | * | |
1744 | * Returns: | |
1745 | * 0 on success, negative error code on failure. | |
1746 | */ | |
1747 | int drm_atomic_check_only(struct drm_atomic_state *state) | |
1748 | { | |
5e743737 RC |
1749 | struct drm_device *dev = state->dev; |
1750 | struct drm_mode_config *config = &dev->mode_config; | |
df63b999 ACO |
1751 | struct drm_plane *plane; |
1752 | struct drm_plane_state *plane_state; | |
1753 | struct drm_crtc *crtc; | |
1754 | struct drm_crtc_state *crtc_state; | |
5e743737 | 1755 | int i, ret = 0; |
cc4ceb48 | 1756 | |
17a38d9c | 1757 | DRM_DEBUG_ATOMIC("checking %p\n", state); |
cc4ceb48 | 1758 | |
5721a380 | 1759 | for_each_new_plane_in_state(state, plane, plane_state, i) { |
df63b999 | 1760 | ret = drm_atomic_plane_check(plane, plane_state); |
5e743737 | 1761 | if (ret) { |
9f4c97a2 VS |
1762 | DRM_DEBUG_ATOMIC("[PLANE:%d:%s] atomic core check failed\n", |
1763 | plane->base.id, plane->name); | |
5e743737 RC |
1764 | return ret; |
1765 | } | |
1766 | } | |
1767 | ||
5721a380 | 1768 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
df63b999 | 1769 | ret = drm_atomic_crtc_check(crtc, crtc_state); |
5e743737 | 1770 | if (ret) { |
fa3ab4c2 VS |
1771 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic core check failed\n", |
1772 | crtc->base.id, crtc->name); | |
5e743737 RC |
1773 | return ret; |
1774 | } | |
1775 | } | |
1776 | ||
cc4ceb48 | 1777 | if (config->funcs->atomic_check) |
5e743737 RC |
1778 | ret = config->funcs->atomic_check(state->dev, state); |
1779 | ||
a0ffc51e ML |
1780 | if (ret) |
1781 | return ret; | |
1782 | ||
d34f20d6 | 1783 | if (!state->allow_modeset) { |
5721a380 | 1784 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
2465ff62 | 1785 | if (drm_atomic_crtc_needs_modeset(crtc_state)) { |
fa3ab4c2 VS |
1786 | DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requires full modeset\n", |
1787 | crtc->base.id, crtc->name); | |
d34f20d6 RC |
1788 | return -EINVAL; |
1789 | } | |
1790 | } | |
1791 | } | |
1792 | ||
a0ffc51e | 1793 | return 0; |
cc4ceb48 DV |
1794 | } |
1795 | EXPORT_SYMBOL(drm_atomic_check_only); | |
1796 | ||
1797 | /** | |
1798 | * drm_atomic_commit - commit configuration atomically | |
1799 | * @state: atomic configuration to check | |
1800 | * | |
1801 | * Note that this function can return -EDEADLK if the driver needed to acquire | |
1802 | * more locks but encountered a deadlock. The caller must then do the usual w/w | |
1803 | * backoff dance and restart. All other errors are fatal. | |
1804 | * | |
76fede2f ML |
1805 | * This function will take its own reference on @state. |
1806 | * Callers should always release their reference with drm_atomic_state_put(). | |
cc4ceb48 DV |
1807 | * |
1808 | * Returns: | |
1809 | * 0 on success, negative error code on failure. | |
1810 | */ | |
1811 | int drm_atomic_commit(struct drm_atomic_state *state) | |
1812 | { | |
1813 | struct drm_mode_config *config = &state->dev->mode_config; | |
1814 | int ret; | |
1815 | ||
1816 | ret = drm_atomic_check_only(state); | |
1817 | if (ret) | |
1818 | return ret; | |
1819 | ||
a0752d4a | 1820 | DRM_DEBUG_ATOMIC("committing %p\n", state); |
cc4ceb48 DV |
1821 | |
1822 | return config->funcs->atomic_commit(state->dev, state, false); | |
1823 | } | |
1824 | EXPORT_SYMBOL(drm_atomic_commit); | |
1825 | ||
1826 | /** | |
d574528a | 1827 | * drm_atomic_nonblocking_commit - atomic nonblocking commit |
cc4ceb48 DV |
1828 | * @state: atomic configuration to check |
1829 | * | |
1830 | * Note that this function can return -EDEADLK if the driver needed to acquire | |
1831 | * more locks but encountered a deadlock. The caller must then do the usual w/w | |
1832 | * backoff dance and restart. All other errors are fatal. | |
1833 | * | |
76fede2f ML |
1834 | * This function will take its own reference on @state. |
1835 | * Callers should always release their reference with drm_atomic_state_put(). | |
cc4ceb48 DV |
1836 | * |
1837 | * Returns: | |
1838 | * 0 on success, negative error code on failure. | |
1839 | */ | |
b837ba0a | 1840 | int drm_atomic_nonblocking_commit(struct drm_atomic_state *state) |
cc4ceb48 DV |
1841 | { |
1842 | struct drm_mode_config *config = &state->dev->mode_config; | |
1843 | int ret; | |
1844 | ||
1845 | ret = drm_atomic_check_only(state); | |
1846 | if (ret) | |
1847 | return ret; | |
1848 | ||
a0752d4a | 1849 | DRM_DEBUG_ATOMIC("committing %p nonblocking\n", state); |
cc4ceb48 DV |
1850 | |
1851 | return config->funcs->atomic_commit(state->dev, state, true); | |
1852 | } | |
b837ba0a | 1853 | EXPORT_SYMBOL(drm_atomic_nonblocking_commit); |
d34f20d6 | 1854 | |
fceffb32 RC |
1855 | static void drm_atomic_print_state(const struct drm_atomic_state *state) |
1856 | { | |
1857 | struct drm_printer p = drm_info_printer(state->dev->dev); | |
1858 | struct drm_plane *plane; | |
1859 | struct drm_plane_state *plane_state; | |
1860 | struct drm_crtc *crtc; | |
1861 | struct drm_crtc_state *crtc_state; | |
1862 | struct drm_connector *connector; | |
1863 | struct drm_connector_state *connector_state; | |
1864 | int i; | |
1865 | ||
1866 | DRM_DEBUG_ATOMIC("checking %p\n", state); | |
1867 | ||
5721a380 | 1868 | for_each_new_plane_in_state(state, plane, plane_state, i) |
fceffb32 RC |
1869 | drm_atomic_plane_print_state(&p, plane_state); |
1870 | ||
5721a380 | 1871 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) |
fceffb32 RC |
1872 | drm_atomic_crtc_print_state(&p, crtc_state); |
1873 | ||
5721a380 | 1874 | for_each_new_connector_in_state(state, connector, connector_state, i) |
fceffb32 RC |
1875 | drm_atomic_connector_print_state(&p, connector_state); |
1876 | } | |
1877 | ||
c2d85564 DV |
1878 | static void __drm_state_dump(struct drm_device *dev, struct drm_printer *p, |
1879 | bool take_locks) | |
6559c901 RC |
1880 | { |
1881 | struct drm_mode_config *config = &dev->mode_config; | |
1882 | struct drm_plane *plane; | |
1883 | struct drm_crtc *crtc; | |
1884 | struct drm_connector *connector; | |
613051da | 1885 | struct drm_connector_list_iter conn_iter; |
6559c901 RC |
1886 | |
1887 | if (!drm_core_check_feature(dev, DRIVER_ATOMIC)) | |
1888 | return; | |
1889 | ||
c2d85564 DV |
1890 | list_for_each_entry(plane, &config->plane_list, head) { |
1891 | if (take_locks) | |
1892 | drm_modeset_lock(&plane->mutex, NULL); | |
6559c901 | 1893 | drm_atomic_plane_print_state(p, plane->state); |
c2d85564 DV |
1894 | if (take_locks) |
1895 | drm_modeset_unlock(&plane->mutex); | |
1896 | } | |
6559c901 | 1897 | |
c2d85564 DV |
1898 | list_for_each_entry(crtc, &config->crtc_list, head) { |
1899 | if (take_locks) | |
1900 | drm_modeset_lock(&crtc->mutex, NULL); | |
6559c901 | 1901 | drm_atomic_crtc_print_state(p, crtc->state); |
c2d85564 DV |
1902 | if (take_locks) |
1903 | drm_modeset_unlock(&crtc->mutex); | |
1904 | } | |
6559c901 | 1905 | |
b982dab1 | 1906 | drm_connector_list_iter_begin(dev, &conn_iter); |
c2d85564 DV |
1907 | if (take_locks) |
1908 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
613051da | 1909 | drm_for_each_connector_iter(connector, &conn_iter) |
6559c901 | 1910 | drm_atomic_connector_print_state(p, connector->state); |
c2d85564 DV |
1911 | if (take_locks) |
1912 | drm_modeset_unlock(&dev->mode_config.connection_mutex); | |
b982dab1 | 1913 | drm_connector_list_iter_end(&conn_iter); |
6559c901 | 1914 | } |
c2d85564 DV |
1915 | |
1916 | /** | |
1917 | * drm_state_dump - dump entire device atomic state | |
1918 | * @dev: the drm device | |
1919 | * @p: where to print the state to | |
1920 | * | |
1921 | * Just for debugging. Drivers might want an option to dump state | |
1922 | * to dmesg in case of error irq's. (Hint, you probably want to | |
1923 | * ratelimit this!) | |
1924 | * | |
1925 | * The caller must drm_modeset_lock_all(), or if this is called | |
1926 | * from error irq handler, it should not be enabled by default. | |
1927 | * (Ie. if you are debugging errors you might not care that this | |
1928 | * is racey. But calling this without all modeset locks held is | |
1929 | * not inherently safe.) | |
1930 | */ | |
1931 | void drm_state_dump(struct drm_device *dev, struct drm_printer *p) | |
1932 | { | |
1933 | __drm_state_dump(dev, p, false); | |
1934 | } | |
6559c901 RC |
1935 | EXPORT_SYMBOL(drm_state_dump); |
1936 | ||
1937 | #ifdef CONFIG_DEBUG_FS | |
1938 | static int drm_state_info(struct seq_file *m, void *data) | |
1939 | { | |
1940 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
1941 | struct drm_device *dev = node->minor->dev; | |
1942 | struct drm_printer p = drm_seq_file_printer(m); | |
1943 | ||
c2d85564 | 1944 | __drm_state_dump(dev, &p, true); |
6559c901 RC |
1945 | |
1946 | return 0; | |
1947 | } | |
1948 | ||
1949 | /* any use in debugfs files to dump individual planes/crtc/etc? */ | |
1950 | static const struct drm_info_list drm_atomic_debugfs_list[] = { | |
1951 | {"state", drm_state_info, 0}, | |
1952 | }; | |
1953 | ||
1954 | int drm_atomic_debugfs_init(struct drm_minor *minor) | |
1955 | { | |
1956 | return drm_debugfs_create_files(drm_atomic_debugfs_list, | |
1957 | ARRAY_SIZE(drm_atomic_debugfs_list), | |
1958 | minor->debugfs_root, minor); | |
1959 | } | |
1960 | #endif | |
1961 | ||
d34f20d6 | 1962 | /* |
21be9154 | 1963 | * The big monster ioctl |
d34f20d6 RC |
1964 | */ |
1965 | ||
1966 | static struct drm_pending_vblank_event *create_vblank_event( | |
bd386e51 | 1967 | struct drm_crtc *crtc, uint64_t user_data) |
d34f20d6 RC |
1968 | { |
1969 | struct drm_pending_vblank_event *e = NULL; | |
d34f20d6 RC |
1970 | |
1971 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
2dd500f1 DV |
1972 | if (!e) |
1973 | return NULL; | |
d34f20d6 RC |
1974 | |
1975 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; | |
2dd500f1 | 1976 | e->event.base.length = sizeof(e->event); |
bd386e51 KP |
1977 | e->event.vbl.crtc_id = crtc->base.id; |
1978 | e->event.vbl.user_data = user_data; | |
d34f20d6 | 1979 | |
2dd500f1 | 1980 | return e; |
d34f20d6 RC |
1981 | } |
1982 | ||
144a7999 DV |
1983 | int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state, |
1984 | struct drm_connector *connector, | |
1985 | int mode) | |
1986 | { | |
1987 | struct drm_connector *tmp_connector; | |
1988 | struct drm_connector_state *new_conn_state; | |
1989 | struct drm_crtc *crtc; | |
1990 | struct drm_crtc_state *crtc_state; | |
1991 | int i, ret, old_mode = connector->dpms; | |
1992 | bool active = false; | |
1993 | ||
1994 | ret = drm_modeset_lock(&state->dev->mode_config.connection_mutex, | |
1995 | state->acquire_ctx); | |
1996 | if (ret) | |
1997 | return ret; | |
1998 | ||
1999 | if (mode != DRM_MODE_DPMS_ON) | |
2000 | mode = DRM_MODE_DPMS_OFF; | |
2001 | connector->dpms = mode; | |
2002 | ||
2003 | crtc = connector->state->crtc; | |
2004 | if (!crtc) | |
2005 | goto out; | |
2006 | ret = drm_atomic_add_affected_connectors(state, crtc); | |
2007 | if (ret) | |
2008 | goto out; | |
2009 | ||
2010 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
2011 | if (IS_ERR(crtc_state)) { | |
2012 | ret = PTR_ERR(crtc_state); | |
2013 | goto out; | |
2014 | } | |
2015 | ||
2016 | for_each_new_connector_in_state(state, tmp_connector, new_conn_state, i) { | |
2017 | if (new_conn_state->crtc != crtc) | |
2018 | continue; | |
2019 | if (tmp_connector->dpms == DRM_MODE_DPMS_ON) { | |
2020 | active = true; | |
2021 | break; | |
2022 | } | |
2023 | } | |
2024 | ||
2025 | crtc_state->active = active; | |
2026 | ret = drm_atomic_commit(state); | |
2027 | out: | |
2028 | if (ret != 0) | |
2029 | connector->dpms = old_mode; | |
2030 | return ret; | |
2031 | } | |
2032 | ||
2033 | int drm_atomic_set_property(struct drm_atomic_state *state, | |
2034 | struct drm_mode_object *obj, | |
2035 | struct drm_property *prop, | |
2036 | uint64_t prop_value) | |
d34f20d6 RC |
2037 | { |
2038 | struct drm_mode_object *ref; | |
2039 | int ret; | |
2040 | ||
2041 | if (!drm_property_change_valid_get(prop, prop_value, &ref)) | |
2042 | return -EINVAL; | |
2043 | ||
2044 | switch (obj->type) { | |
2045 | case DRM_MODE_OBJECT_CONNECTOR: { | |
2046 | struct drm_connector *connector = obj_to_connector(obj); | |
2047 | struct drm_connector_state *connector_state; | |
2048 | ||
2049 | connector_state = drm_atomic_get_connector_state(state, connector); | |
2050 | if (IS_ERR(connector_state)) { | |
2051 | ret = PTR_ERR(connector_state); | |
2052 | break; | |
2053 | } | |
2054 | ||
2055 | ret = drm_atomic_connector_set_property(connector, | |
2056 | connector_state, prop, prop_value); | |
2057 | break; | |
2058 | } | |
2059 | case DRM_MODE_OBJECT_CRTC: { | |
2060 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
2061 | struct drm_crtc_state *crtc_state; | |
2062 | ||
2063 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
2064 | if (IS_ERR(crtc_state)) { | |
2065 | ret = PTR_ERR(crtc_state); | |
2066 | break; | |
2067 | } | |
2068 | ||
2069 | ret = drm_atomic_crtc_set_property(crtc, | |
2070 | crtc_state, prop, prop_value); | |
2071 | break; | |
2072 | } | |
2073 | case DRM_MODE_OBJECT_PLANE: { | |
2074 | struct drm_plane *plane = obj_to_plane(obj); | |
2075 | struct drm_plane_state *plane_state; | |
2076 | ||
2077 | plane_state = drm_atomic_get_plane_state(state, plane); | |
2078 | if (IS_ERR(plane_state)) { | |
2079 | ret = PTR_ERR(plane_state); | |
2080 | break; | |
2081 | } | |
2082 | ||
2083 | ret = drm_atomic_plane_set_property(plane, | |
2084 | plane_state, prop, prop_value); | |
2085 | break; | |
2086 | } | |
2087 | default: | |
2088 | ret = -EINVAL; | |
2089 | break; | |
2090 | } | |
2091 | ||
2092 | drm_property_change_valid_put(prop, ref); | |
2093 | return ret; | |
2094 | } | |
2095 | ||
9a83a71a GP |
2096 | /** |
2097 | * DOC: explicit fencing properties | |
2098 | * | |
2099 | * Explicit fencing allows userspace to control the buffer synchronization | |
2100 | * between devices. A Fence or a group of fences are transfered to/from | |
2101 | * userspace using Sync File fds and there are two DRM properties for that. | |
2102 | * IN_FENCE_FD on each DRM Plane to send fences to the kernel and | |
2103 | * OUT_FENCE_PTR on each DRM CRTC to receive fences from the kernel. | |
2104 | * | |
2105 | * As a contrast, with implicit fencing the kernel keeps track of any | |
2106 | * ongoing rendering, and automatically ensures that the atomic update waits | |
2107 | * for any pending rendering to complete. For shared buffers represented with | |
d574528a | 2108 | * a &struct dma_buf this is tracked in &struct reservation_object. |
9a83a71a GP |
2109 | * Implicit syncing is how Linux traditionally worked (e.g. DRI2/3 on X.org), |
2110 | * whereas explicit fencing is what Android wants. | |
2111 | * | |
2112 | * "IN_FENCE_FD”: | |
2113 | * Use this property to pass a fence that DRM should wait on before | |
2114 | * proceeding with the Atomic Commit request and show the framebuffer for | |
2115 | * the plane on the screen. The fence can be either a normal fence or a | |
2116 | * merged one, the sync_file framework will handle both cases and use a | |
2117 | * fence_array if a merged fence is received. Passing -1 here means no | |
2118 | * fences to wait on. | |
2119 | * | |
2120 | * If the Atomic Commit request has the DRM_MODE_ATOMIC_TEST_ONLY flag | |
2121 | * it will only check if the Sync File is a valid one. | |
2122 | * | |
2123 | * On the driver side the fence is stored on the @fence parameter of | |
ea0dd85a | 2124 | * &struct drm_plane_state. Drivers which also support implicit fencing |
9a83a71a GP |
2125 | * should set the implicit fence using drm_atomic_set_fence_for_plane(), |
2126 | * to make sure there's consistent behaviour between drivers in precedence | |
2127 | * of implicit vs. explicit fencing. | |
2128 | * | |
2129 | * "OUT_FENCE_PTR”: | |
2130 | * Use this property to pass a file descriptor pointer to DRM. Once the | |
2131 | * Atomic Commit request call returns OUT_FENCE_PTR will be filled with | |
2132 | * the file descriptor number of a Sync File. This Sync File contains the | |
2133 | * CRTC fence that will be signaled when all framebuffers present on the | |
2134 | * Atomic Commit * request for that given CRTC are scanned out on the | |
2135 | * screen. | |
2136 | * | |
2137 | * The Atomic Commit request fails if a invalid pointer is passed. If the | |
2138 | * Atomic Commit request fails for any other reason the out fence fd | |
2139 | * returned will be -1. On a Atomic Commit with the | |
2140 | * DRM_MODE_ATOMIC_TEST_ONLY flag the out fence will also be set to -1. | |
2141 | * | |
2142 | * Note that out-fences don't have a special interface to drivers and are | |
ea0dd85a | 2143 | * internally represented by a &struct drm_pending_vblank_event in struct |
9a83a71a GP |
2144 | * &drm_crtc_state, which is also used by the nonblocking atomic commit |
2145 | * helpers and for the DRM event handling for existing userspace. | |
2146 | */ | |
2147 | ||
beaf5af4 | 2148 | struct drm_out_fence_state { |
7e9081c5 | 2149 | s32 __user *out_fence_ptr; |
beaf5af4 GP |
2150 | struct sync_file *sync_file; |
2151 | int fd; | |
2152 | }; | |
2153 | ||
2154 | static int setup_out_fence(struct drm_out_fence_state *fence_state, | |
2155 | struct dma_fence *fence) | |
2156 | { | |
2157 | fence_state->fd = get_unused_fd_flags(O_CLOEXEC); | |
2158 | if (fence_state->fd < 0) | |
2159 | return fence_state->fd; | |
2160 | ||
2161 | if (put_user(fence_state->fd, fence_state->out_fence_ptr)) | |
2162 | return -EFAULT; | |
2163 | ||
2164 | fence_state->sync_file = sync_file_create(fence); | |
2165 | if (!fence_state->sync_file) | |
2166 | return -ENOMEM; | |
2167 | ||
2168 | return 0; | |
2169 | } | |
2170 | ||
2171 | static int prepare_crtc_signaling(struct drm_device *dev, | |
2172 | struct drm_atomic_state *state, | |
2173 | struct drm_mode_atomic *arg, | |
2174 | struct drm_file *file_priv, | |
2175 | struct drm_out_fence_state **fence_state, | |
2176 | unsigned int *num_fences) | |
2177 | { | |
2178 | struct drm_crtc *crtc; | |
2179 | struct drm_crtc_state *crtc_state; | |
330c422a | 2180 | int i, c = 0, ret; |
beaf5af4 GP |
2181 | |
2182 | if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) | |
2183 | return 0; | |
2184 | ||
5721a380 | 2185 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
7e9081c5 | 2186 | s32 __user *fence_ptr; |
beaf5af4 GP |
2187 | |
2188 | fence_ptr = get_out_fence_for_crtc(crtc_state->state, crtc); | |
2189 | ||
2190 | if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT || fence_ptr) { | |
2191 | struct drm_pending_vblank_event *e; | |
2192 | ||
bd386e51 | 2193 | e = create_vblank_event(crtc, arg->user_data); |
beaf5af4 GP |
2194 | if (!e) |
2195 | return -ENOMEM; | |
2196 | ||
2197 | crtc_state->event = e; | |
2198 | } | |
2199 | ||
2200 | if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) { | |
2201 | struct drm_pending_vblank_event *e = crtc_state->event; | |
2202 | ||
2203 | if (!file_priv) | |
2204 | continue; | |
2205 | ||
2206 | ret = drm_event_reserve_init(dev, file_priv, &e->base, | |
2207 | &e->event.base); | |
2208 | if (ret) { | |
2209 | kfree(e); | |
2210 | crtc_state->event = NULL; | |
2211 | return ret; | |
2212 | } | |
2213 | } | |
2214 | ||
2215 | if (fence_ptr) { | |
2216 | struct dma_fence *fence; | |
2217 | struct drm_out_fence_state *f; | |
2218 | ||
2219 | f = krealloc(*fence_state, sizeof(**fence_state) * | |
2220 | (*num_fences + 1), GFP_KERNEL); | |
2221 | if (!f) | |
2222 | return -ENOMEM; | |
2223 | ||
2224 | memset(&f[*num_fences], 0, sizeof(*f)); | |
2225 | ||
2226 | f[*num_fences].out_fence_ptr = fence_ptr; | |
2227 | *fence_state = f; | |
2228 | ||
35f8cc3b | 2229 | fence = drm_crtc_create_fence(crtc); |
beaf5af4 GP |
2230 | if (!fence) |
2231 | return -ENOMEM; | |
2232 | ||
2233 | ret = setup_out_fence(&f[(*num_fences)++], fence); | |
2234 | if (ret) { | |
2235 | dma_fence_put(fence); | |
2236 | return ret; | |
2237 | } | |
2238 | ||
2239 | crtc_state->event->base.fence = fence; | |
2240 | } | |
330c422a AG |
2241 | |
2242 | c++; | |
beaf5af4 GP |
2243 | } |
2244 | ||
330c422a AG |
2245 | /* |
2246 | * Having this flag means user mode pends on event which will never | |
2247 | * reach due to lack of at least one CRTC for signaling | |
2248 | */ | |
2249 | if (c == 0 && (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) | |
2250 | return -EINVAL; | |
2251 | ||
beaf5af4 GP |
2252 | return 0; |
2253 | } | |
2254 | ||
2255 | static void complete_crtc_signaling(struct drm_device *dev, | |
2256 | struct drm_atomic_state *state, | |
2257 | struct drm_out_fence_state *fence_state, | |
2258 | unsigned int num_fences, | |
2259 | bool install_fds) | |
2260 | { | |
2261 | struct drm_crtc *crtc; | |
2262 | struct drm_crtc_state *crtc_state; | |
2263 | int i; | |
2264 | ||
2265 | if (install_fds) { | |
2266 | for (i = 0; i < num_fences; i++) | |
2267 | fd_install(fence_state[i].fd, | |
2268 | fence_state[i].sync_file->file); | |
2269 | ||
2270 | kfree(fence_state); | |
2271 | return; | |
2272 | } | |
2273 | ||
5721a380 | 2274 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { |
92c715fc | 2275 | struct drm_pending_vblank_event *event = crtc_state->event; |
beaf5af4 | 2276 | /* |
92c715fc ML |
2277 | * Free the allocated event. drm_atomic_helper_setup_commit |
2278 | * can allocate an event too, so only free it if it's ours | |
2279 | * to prevent a double free in drm_atomic_state_clear. | |
beaf5af4 | 2280 | */ |
92c715fc ML |
2281 | if (event && (event->base.fence || event->base.file_priv)) { |
2282 | drm_event_cancel_free(dev, &event->base); | |
2283 | crtc_state->event = NULL; | |
2284 | } | |
beaf5af4 GP |
2285 | } |
2286 | ||
2287 | if (!fence_state) | |
2288 | return; | |
2289 | ||
2290 | for (i = 0; i < num_fences; i++) { | |
2291 | if (fence_state[i].sync_file) | |
2292 | fput(fence_state[i].sync_file->file); | |
2293 | if (fence_state[i].fd >= 0) | |
2294 | put_unused_fd(fence_state[i].fd); | |
2295 | ||
2296 | /* If this fails log error to the user */ | |
2297 | if (fence_state[i].out_fence_ptr && | |
2298 | put_user(-1, fence_state[i].out_fence_ptr)) | |
2299 | DRM_DEBUG_ATOMIC("Couldn't clear out_fence_ptr\n"); | |
2300 | } | |
2301 | ||
2302 | kfree(fence_state); | |
2303 | } | |
2304 | ||
d34f20d6 RC |
2305 | int drm_mode_atomic_ioctl(struct drm_device *dev, |
2306 | void *data, struct drm_file *file_priv) | |
2307 | { | |
2308 | struct drm_mode_atomic *arg = data; | |
2309 | uint32_t __user *objs_ptr = (uint32_t __user *)(unsigned long)(arg->objs_ptr); | |
2310 | uint32_t __user *count_props_ptr = (uint32_t __user *)(unsigned long)(arg->count_props_ptr); | |
2311 | uint32_t __user *props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
2312 | uint64_t __user *prop_values_ptr = (uint64_t __user *)(unsigned long)(arg->prop_values_ptr); | |
2313 | unsigned int copied_objs, copied_props; | |
2314 | struct drm_atomic_state *state; | |
2315 | struct drm_modeset_acquire_ctx ctx; | |
7f5d6dac | 2316 | struct drm_out_fence_state *fence_state; |
d34f20d6 | 2317 | int ret = 0; |
7f5d6dac | 2318 | unsigned int i, j, num_fences; |
d34f20d6 RC |
2319 | |
2320 | /* disallow for drivers not supporting atomic: */ | |
2321 | if (!drm_core_check_feature(dev, DRIVER_ATOMIC)) | |
2322 | return -EINVAL; | |
2323 | ||
2324 | /* disallow for userspace that has not enabled atomic cap (even | |
2325 | * though this may be a bit overkill, since legacy userspace | |
2326 | * wouldn't know how to call this ioctl) | |
2327 | */ | |
2328 | if (!file_priv->atomic) | |
2329 | return -EINVAL; | |
2330 | ||
2331 | if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS) | |
2332 | return -EINVAL; | |
2333 | ||
2334 | if (arg->reserved) | |
2335 | return -EINVAL; | |
2336 | ||
2337 | if ((arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) && | |
2338 | !dev->mode_config.async_page_flip) | |
2339 | return -EINVAL; | |
2340 | ||
2341 | /* can't test and expect an event at the same time. */ | |
2342 | if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) && | |
2343 | (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) | |
2344 | return -EINVAL; | |
2345 | ||
dad56ce4 | 2346 | drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); |
d34f20d6 RC |
2347 | |
2348 | state = drm_atomic_state_alloc(dev); | |
2349 | if (!state) | |
2350 | return -ENOMEM; | |
2351 | ||
2352 | state->acquire_ctx = &ctx; | |
2353 | state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET); | |
2354 | ||
2355 | retry: | |
2356 | copied_objs = 0; | |
2357 | copied_props = 0; | |
7f5d6dac ML |
2358 | fence_state = NULL; |
2359 | num_fences = 0; | |
d34f20d6 RC |
2360 | |
2361 | for (i = 0; i < arg->count_objs; i++) { | |
2362 | uint32_t obj_id, count_props; | |
2363 | struct drm_mode_object *obj; | |
2364 | ||
2365 | if (get_user(obj_id, objs_ptr + copied_objs)) { | |
2366 | ret = -EFAULT; | |
ec9f932e | 2367 | goto out; |
d34f20d6 RC |
2368 | } |
2369 | ||
418da172 | 2370 | obj = drm_mode_object_find(dev, file_priv, obj_id, DRM_MODE_OBJECT_ANY); |
b164d31f DA |
2371 | if (!obj) { |
2372 | ret = -ENOENT; | |
2373 | goto out; | |
2374 | } | |
2375 | ||
2376 | if (!obj->properties) { | |
020a218f | 2377 | drm_mode_object_put(obj); |
d34f20d6 | 2378 | ret = -ENOENT; |
ec9f932e | 2379 | goto out; |
d34f20d6 RC |
2380 | } |
2381 | ||
d34f20d6 | 2382 | if (get_user(count_props, count_props_ptr + copied_objs)) { |
020a218f | 2383 | drm_mode_object_put(obj); |
d34f20d6 | 2384 | ret = -EFAULT; |
ec9f932e | 2385 | goto out; |
d34f20d6 RC |
2386 | } |
2387 | ||
2388 | copied_objs++; | |
2389 | ||
2390 | for (j = 0; j < count_props; j++) { | |
2391 | uint32_t prop_id; | |
2392 | uint64_t prop_value; | |
2393 | struct drm_property *prop; | |
2394 | ||
2395 | if (get_user(prop_id, props_ptr + copied_props)) { | |
020a218f | 2396 | drm_mode_object_put(obj); |
d34f20d6 | 2397 | ret = -EFAULT; |
ec9f932e | 2398 | goto out; |
d34f20d6 RC |
2399 | } |
2400 | ||
f92f053b | 2401 | prop = drm_mode_obj_find_prop_id(obj, prop_id); |
d34f20d6 | 2402 | if (!prop) { |
020a218f | 2403 | drm_mode_object_put(obj); |
d34f20d6 | 2404 | ret = -ENOENT; |
ec9f932e | 2405 | goto out; |
d34f20d6 RC |
2406 | } |
2407 | ||
42c5814c GR |
2408 | if (copy_from_user(&prop_value, |
2409 | prop_values_ptr + copied_props, | |
2410 | sizeof(prop_value))) { | |
020a218f | 2411 | drm_mode_object_put(obj); |
d34f20d6 | 2412 | ret = -EFAULT; |
ec9f932e | 2413 | goto out; |
d34f20d6 RC |
2414 | } |
2415 | ||
144a7999 DV |
2416 | ret = drm_atomic_set_property(state, obj, prop, |
2417 | prop_value); | |
b164d31f | 2418 | if (ret) { |
020a218f | 2419 | drm_mode_object_put(obj); |
ec9f932e | 2420 | goto out; |
b164d31f | 2421 | } |
d34f20d6 RC |
2422 | |
2423 | copied_props++; | |
2424 | } | |
a9cc54ee | 2425 | |
020a218f | 2426 | drm_mode_object_put(obj); |
d34f20d6 RC |
2427 | } |
2428 | ||
beaf5af4 GP |
2429 | ret = prepare_crtc_signaling(dev, state, arg, file_priv, &fence_state, |
2430 | &num_fences); | |
2431 | if (ret) | |
2432 | goto out; | |
d34f20d6 RC |
2433 | |
2434 | if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) { | |
2435 | ret = drm_atomic_check_only(state); | |
d34f20d6 | 2436 | } else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) { |
b837ba0a | 2437 | ret = drm_atomic_nonblocking_commit(state); |
d34f20d6 | 2438 | } else { |
fceffb32 RC |
2439 | if (unlikely(drm_debug & DRM_UT_STATE)) |
2440 | drm_atomic_print_state(state); | |
2441 | ||
d34f20d6 RC |
2442 | ret = drm_atomic_commit(state); |
2443 | } | |
2444 | ||
ec9f932e | 2445 | out: |
beaf5af4 | 2446 | complete_crtc_signaling(dev, state, fence_state, num_fences, !ret); |
c4749c9a | 2447 | |
ec9f932e ML |
2448 | if (ret == -EDEADLK) { |
2449 | drm_atomic_state_clear(state); | |
dad56ce4 ML |
2450 | ret = drm_modeset_backoff(&ctx); |
2451 | if (!ret) | |
2452 | goto retry; | |
ec9f932e | 2453 | } |
d34f20d6 | 2454 | |
0853695c | 2455 | drm_atomic_state_put(state); |
d34f20d6 RC |
2456 | |
2457 | drm_modeset_drop_locks(&ctx); | |
2458 | drm_modeset_acquire_fini(&ctx); | |
2459 | ||
2460 | return ret; | |
d34f20d6 | 2461 | } |