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72fdb40c DV |
1 | /* |
2 | * Copyright (C) 2014 Red Hat | |
3 | * Copyright (C) 2014 Intel Corp. | |
4 | * Copyright (C) 2018 Intel Corp. | |
a4324a7a | 5 | * Copyright (c) 2020, The Linux Foundation. All rights reserved. |
72fdb40c DV |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
8 | * copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation | |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
11 | * and/or sell copies of the Software, and to permit persons to whom the | |
12 | * Software is furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
20 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
21 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
22 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
23 | * OTHER DEALINGS IN THE SOFTWARE. | |
24 | * | |
25 | * Authors: | |
26 | * Rob Clark <robdclark@gmail.com> | |
27 | * Daniel Vetter <daniel.vetter@ffwll.ch> | |
28 | */ | |
29 | ||
30 | #include <drm/drm_atomic_uapi.h> | |
31 | #include <drm/drm_atomic.h> | |
720cf96d | 32 | #include <drm/drm_framebuffer.h> |
72fdb40c DV |
33 | #include <drm/drm_print.h> |
34 | #include <drm/drm_drv.h> | |
35 | #include <drm/drm_writeback.h> | |
36 | #include <drm/drm_vblank.h> | |
37 | ||
38 | #include <linux/dma-fence.h> | |
39 | #include <linux/uaccess.h> | |
40 | #include <linux/sync_file.h> | |
41 | #include <linux/file.h> | |
42 | ||
43 | #include "drm_crtc_internal.h" | |
44 | ||
45 | /** | |
46 | * DOC: overview | |
47 | * | |
48 | * This file contains the marshalling and demarshalling glue for the atomic UAPI | |
1e55a53a MR |
49 | * in all its forms: The monster ATOMIC IOCTL itself, code for GET_PROPERTY and |
50 | * SET_PROPERTY IOCTLs. Plus interface functions for compatibility helpers and | |
72fdb40c | 51 | * drivers which have special needs to construct their own atomic updates, e.g. |
0ae865ef | 52 | * for load detect or similar. |
72fdb40c DV |
53 | */ |
54 | ||
55 | /** | |
56 | * drm_atomic_set_mode_for_crtc - set mode for CRTC | |
57 | * @state: the CRTC whose incoming state to update | |
58 | * @mode: kernel-internal mode to use for the CRTC, or NULL to disable | |
59 | * | |
60 | * Set a mode (originating from the kernel) on the desired CRTC state and update | |
61 | * the enable property. | |
62 | * | |
63 | * RETURNS: | |
64 | * Zero on success, error code on failure. Cannot return -EDEADLK. | |
65 | */ | |
66 | int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, | |
67 | const struct drm_display_mode *mode) | |
68 | { | |
69 | struct drm_crtc *crtc = state->crtc; | |
70 | struct drm_mode_modeinfo umode; | |
71 | ||
72 | /* Early return for no change. */ | |
73 | if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0) | |
74 | return 0; | |
75 | ||
76 | drm_property_blob_put(state->mode_blob); | |
77 | state->mode_blob = NULL; | |
78 | ||
79 | if (mode) { | |
439cf34c VS |
80 | struct drm_property_blob *blob; |
81 | ||
72fdb40c | 82 | drm_mode_convert_to_umode(&umode, mode); |
439cf34c VS |
83 | blob = drm_property_create_blob(crtc->dev, |
84 | sizeof(umode), &umode); | |
85 | if (IS_ERR(blob)) | |
86 | return PTR_ERR(blob); | |
72fdb40c DV |
87 | |
88 | drm_mode_copy(&state->mode, mode); | |
439cf34c VS |
89 | |
90 | state->mode_blob = blob; | |
72fdb40c | 91 | state->enable = true; |
e3aae683 SS |
92 | drm_dbg_atomic(crtc->dev, |
93 | "Set [MODE:%s] for [CRTC:%d:%s] state %p\n", | |
94 | mode->name, crtc->base.id, crtc->name, state); | |
72fdb40c DV |
95 | } else { |
96 | memset(&state->mode, 0, sizeof(state->mode)); | |
97 | state->enable = false; | |
e3aae683 SS |
98 | drm_dbg_atomic(crtc->dev, |
99 | "Set [NOMODE] for [CRTC:%d:%s] state %p\n", | |
100 | crtc->base.id, crtc->name, state); | |
72fdb40c DV |
101 | } |
102 | ||
103 | return 0; | |
104 | } | |
105 | EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); | |
106 | ||
107 | /** | |
108 | * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC | |
109 | * @state: the CRTC whose incoming state to update | |
110 | * @blob: pointer to blob property to use for mode | |
111 | * | |
112 | * Set a mode (originating from a blob property) on the desired CRTC state. | |
113 | * This function will take a reference on the blob property for the CRTC state, | |
114 | * and release the reference held on the state's existing mode property, if any | |
115 | * was set. | |
116 | * | |
117 | * RETURNS: | |
118 | * Zero on success, error code on failure. Cannot return -EDEADLK. | |
119 | */ | |
120 | int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, | |
e8b05876 | 121 | struct drm_property_blob *blob) |
72fdb40c DV |
122 | { |
123 | struct drm_crtc *crtc = state->crtc; | |
124 | ||
125 | if (blob == state->mode_blob) | |
126 | return 0; | |
127 | ||
128 | drm_property_blob_put(state->mode_blob); | |
129 | state->mode_blob = NULL; | |
130 | ||
131 | memset(&state->mode, 0, sizeof(state->mode)); | |
132 | ||
133 | if (blob) { | |
134 | int ret; | |
135 | ||
136 | if (blob->length != sizeof(struct drm_mode_modeinfo)) { | |
e3aae683 SS |
137 | drm_dbg_atomic(crtc->dev, |
138 | "[CRTC:%d:%s] bad mode blob length: %zu\n", | |
139 | crtc->base.id, crtc->name, | |
140 | blob->length); | |
72fdb40c DV |
141 | return -EINVAL; |
142 | } | |
143 | ||
144 | ret = drm_mode_convert_umode(crtc->dev, | |
145 | &state->mode, blob->data); | |
146 | if (ret) { | |
e3aae683 SS |
147 | drm_dbg_atomic(crtc->dev, |
148 | "[CRTC:%d:%s] invalid mode (ret=%d, status=%s):\n", | |
149 | crtc->base.id, crtc->name, | |
150 | ret, drm_get_mode_status_name(state->mode.status)); | |
72fdb40c DV |
151 | drm_mode_debug_printmodeline(&state->mode); |
152 | return -EINVAL; | |
153 | } | |
154 | ||
155 | state->mode_blob = drm_property_blob_get(blob); | |
156 | state->enable = true; | |
e3aae683 SS |
157 | drm_dbg_atomic(crtc->dev, |
158 | "Set [MODE:%s] for [CRTC:%d:%s] state %p\n", | |
159 | state->mode.name, crtc->base.id, crtc->name, | |
160 | state); | |
72fdb40c DV |
161 | } else { |
162 | state->enable = false; | |
e3aae683 SS |
163 | drm_dbg_atomic(crtc->dev, |
164 | "Set [NOMODE] for [CRTC:%d:%s] state %p\n", | |
165 | crtc->base.id, crtc->name, state); | |
72fdb40c DV |
166 | } |
167 | ||
168 | return 0; | |
169 | } | |
170 | EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc); | |
171 | ||
172 | /** | |
42240c90 | 173 | * drm_atomic_set_crtc_for_plane - set CRTC for plane |
72fdb40c | 174 | * @plane_state: the plane whose incoming state to update |
42240c90 | 175 | * @crtc: CRTC to use for the plane |
72fdb40c | 176 | * |
42240c90 TR |
177 | * Changing the assigned CRTC for a plane requires us to grab the lock and state |
178 | * for the new CRTC, as needed. This function takes care of all these details | |
72fdb40c DV |
179 | * besides updating the pointer in the state object itself. |
180 | * | |
181 | * Returns: | |
182 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
183 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
184 | * sequence must be restarted. All other errors are fatal. | |
185 | */ | |
186 | int | |
187 | drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, | |
188 | struct drm_crtc *crtc) | |
189 | { | |
190 | struct drm_plane *plane = plane_state->plane; | |
191 | struct drm_crtc_state *crtc_state; | |
192 | /* Nothing to do for same crtc*/ | |
193 | if (plane_state->crtc == crtc) | |
194 | return 0; | |
195 | if (plane_state->crtc) { | |
196 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, | |
197 | plane_state->crtc); | |
198 | if (WARN_ON(IS_ERR(crtc_state))) | |
199 | return PTR_ERR(crtc_state); | |
200 | ||
201 | crtc_state->plane_mask &= ~drm_plane_mask(plane); | |
202 | } | |
203 | ||
204 | plane_state->crtc = crtc; | |
205 | ||
206 | if (crtc) { | |
207 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, | |
208 | crtc); | |
209 | if (IS_ERR(crtc_state)) | |
210 | return PTR_ERR(crtc_state); | |
211 | crtc_state->plane_mask |= drm_plane_mask(plane); | |
212 | } | |
213 | ||
214 | if (crtc) | |
e3aae683 SS |
215 | drm_dbg_atomic(plane->dev, |
216 | "Link [PLANE:%d:%s] state %p to [CRTC:%d:%s]\n", | |
217 | plane->base.id, plane->name, plane_state, | |
218 | crtc->base.id, crtc->name); | |
72fdb40c | 219 | else |
e3aae683 SS |
220 | drm_dbg_atomic(plane->dev, |
221 | "Link [PLANE:%d:%s] state %p to [NOCRTC]\n", | |
222 | plane->base.id, plane->name, plane_state); | |
72fdb40c DV |
223 | |
224 | return 0; | |
225 | } | |
226 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane); | |
227 | ||
228 | /** | |
229 | * drm_atomic_set_fb_for_plane - set framebuffer for plane | |
230 | * @plane_state: atomic state object for the plane | |
231 | * @fb: fb to use for the plane | |
232 | * | |
233 | * Changing the assigned framebuffer for a plane requires us to grab a reference | |
234 | * to the new fb and drop the reference to the old fb, if there is one. This | |
235 | * function takes care of all these details besides updating the pointer in the | |
236 | * state object itself. | |
237 | */ | |
238 | void | |
239 | drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state, | |
240 | struct drm_framebuffer *fb) | |
241 | { | |
242 | struct drm_plane *plane = plane_state->plane; | |
243 | ||
244 | if (fb) | |
e3aae683 SS |
245 | drm_dbg_atomic(plane->dev, |
246 | "Set [FB:%d] for [PLANE:%d:%s] state %p\n", | |
247 | fb->base.id, plane->base.id, plane->name, | |
248 | plane_state); | |
72fdb40c | 249 | else |
e3aae683 SS |
250 | drm_dbg_atomic(plane->dev, |
251 | "Set [NOFB] for [PLANE:%d:%s] state %p\n", | |
252 | plane->base.id, plane->name, plane_state); | |
72fdb40c DV |
253 | |
254 | drm_framebuffer_assign(&plane_state->fb, fb); | |
255 | } | |
256 | EXPORT_SYMBOL(drm_atomic_set_fb_for_plane); | |
257 | ||
72fdb40c | 258 | /** |
42240c90 | 259 | * drm_atomic_set_crtc_for_connector - set CRTC for connector |
72fdb40c | 260 | * @conn_state: atomic state object for the connector |
42240c90 | 261 | * @crtc: CRTC to use for the connector |
72fdb40c | 262 | * |
42240c90 TR |
263 | * Changing the assigned CRTC for a connector requires us to grab the lock and |
264 | * state for the new CRTC, as needed. This function takes care of all these | |
72fdb40c DV |
265 | * details besides updating the pointer in the state object itself. |
266 | * | |
267 | * Returns: | |
268 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK | |
269 | * then the w/w mutex code has detected a deadlock and the entire atomic | |
270 | * sequence must be restarted. All other errors are fatal. | |
271 | */ | |
272 | int | |
273 | drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, | |
274 | struct drm_crtc *crtc) | |
275 | { | |
276 | struct drm_connector *connector = conn_state->connector; | |
277 | struct drm_crtc_state *crtc_state; | |
278 | ||
279 | if (conn_state->crtc == crtc) | |
280 | return 0; | |
281 | ||
282 | if (conn_state->crtc) { | |
283 | crtc_state = drm_atomic_get_new_crtc_state(conn_state->state, | |
284 | conn_state->crtc); | |
285 | ||
286 | crtc_state->connector_mask &= | |
287 | ~drm_connector_mask(conn_state->connector); | |
288 | ||
289 | drm_connector_put(conn_state->connector); | |
290 | conn_state->crtc = NULL; | |
291 | } | |
292 | ||
293 | if (crtc) { | |
294 | crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc); | |
295 | if (IS_ERR(crtc_state)) | |
296 | return PTR_ERR(crtc_state); | |
297 | ||
298 | crtc_state->connector_mask |= | |
299 | drm_connector_mask(conn_state->connector); | |
300 | ||
301 | drm_connector_get(conn_state->connector); | |
302 | conn_state->crtc = crtc; | |
303 | ||
0003b687 | 304 | drm_dbg_atomic(connector->dev, |
e3aae683 SS |
305 | "Link [CONNECTOR:%d:%s] state %p to [CRTC:%d:%s]\n", |
306 | connector->base.id, connector->name, | |
307 | conn_state, crtc->base.id, crtc->name); | |
72fdb40c | 308 | } else { |
0003b687 | 309 | drm_dbg_atomic(connector->dev, |
e3aae683 SS |
310 | "Link [CONNECTOR:%d:%s] state %p to [NOCRTC]\n", |
311 | connector->base.id, connector->name, | |
312 | conn_state); | |
72fdb40c DV |
313 | } |
314 | ||
315 | return 0; | |
316 | } | |
317 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector); | |
318 | ||
319 | static void set_out_fence_for_crtc(struct drm_atomic_state *state, | |
320 | struct drm_crtc *crtc, s32 __user *fence_ptr) | |
321 | { | |
322 | state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = fence_ptr; | |
323 | } | |
324 | ||
325 | static s32 __user *get_out_fence_for_crtc(struct drm_atomic_state *state, | |
326 | struct drm_crtc *crtc) | |
327 | { | |
328 | s32 __user *fence_ptr; | |
329 | ||
330 | fence_ptr = state->crtcs[drm_crtc_index(crtc)].out_fence_ptr; | |
331 | state->crtcs[drm_crtc_index(crtc)].out_fence_ptr = NULL; | |
332 | ||
333 | return fence_ptr; | |
334 | } | |
335 | ||
336 | static int set_out_fence_for_connector(struct drm_atomic_state *state, | |
337 | struct drm_connector *connector, | |
338 | s32 __user *fence_ptr) | |
339 | { | |
340 | unsigned int index = drm_connector_index(connector); | |
341 | ||
342 | if (!fence_ptr) | |
343 | return 0; | |
344 | ||
345 | if (put_user(-1, fence_ptr)) | |
346 | return -EFAULT; | |
347 | ||
348 | state->connectors[index].out_fence_ptr = fence_ptr; | |
349 | ||
350 | return 0; | |
351 | } | |
352 | ||
353 | static s32 __user *get_out_fence_for_connector(struct drm_atomic_state *state, | |
354 | struct drm_connector *connector) | |
355 | { | |
356 | unsigned int index = drm_connector_index(connector); | |
357 | s32 __user *fence_ptr; | |
358 | ||
359 | fence_ptr = state->connectors[index].out_fence_ptr; | |
360 | state->connectors[index].out_fence_ptr = NULL; | |
361 | ||
362 | return fence_ptr; | |
363 | } | |
364 | ||
365 | static int | |
366 | drm_atomic_replace_property_blob_from_id(struct drm_device *dev, | |
367 | struct drm_property_blob **blob, | |
368 | uint64_t blob_id, | |
369 | ssize_t expected_size, | |
370 | ssize_t expected_elem_size, | |
371 | bool *replaced) | |
372 | { | |
373 | struct drm_property_blob *new_blob = NULL; | |
374 | ||
375 | if (blob_id != 0) { | |
376 | new_blob = drm_property_lookup_blob(dev, blob_id); | |
c804b83d SS |
377 | if (new_blob == NULL) { |
378 | drm_dbg_atomic(dev, | |
379 | "cannot find blob ID %llu\n", blob_id); | |
72fdb40c | 380 | return -EINVAL; |
c804b83d | 381 | } |
72fdb40c DV |
382 | |
383 | if (expected_size > 0 && | |
384 | new_blob->length != expected_size) { | |
c804b83d SS |
385 | drm_dbg_atomic(dev, |
386 | "[BLOB:%d] length %zu different from expected %zu\n", | |
387 | new_blob->base.id, new_blob->length, expected_size); | |
72fdb40c DV |
388 | drm_property_blob_put(new_blob); |
389 | return -EINVAL; | |
390 | } | |
391 | if (expected_elem_size > 0 && | |
392 | new_blob->length % expected_elem_size != 0) { | |
c804b83d SS |
393 | drm_dbg_atomic(dev, |
394 | "[BLOB:%d] length %zu not divisible by element size %zu\n", | |
395 | new_blob->base.id, new_blob->length, expected_elem_size); | |
72fdb40c DV |
396 | drm_property_blob_put(new_blob); |
397 | return -EINVAL; | |
398 | } | |
399 | } | |
400 | ||
401 | *replaced |= drm_property_replace_blob(blob, new_blob); | |
402 | drm_property_blob_put(new_blob); | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | static int drm_atomic_crtc_set_property(struct drm_crtc *crtc, | |
408 | struct drm_crtc_state *state, struct drm_property *property, | |
409 | uint64_t val) | |
410 | { | |
411 | struct drm_device *dev = crtc->dev; | |
412 | struct drm_mode_config *config = &dev->mode_config; | |
413 | bool replaced = false; | |
414 | int ret; | |
415 | ||
416 | if (property == config->prop_active) | |
417 | state->active = val; | |
418 | else if (property == config->prop_mode_id) { | |
419 | struct drm_property_blob *mode = | |
420 | drm_property_lookup_blob(dev, val); | |
421 | ret = drm_atomic_set_mode_prop_for_crtc(state, mode); | |
422 | drm_property_blob_put(mode); | |
423 | return ret; | |
1398958c NK |
424 | } else if (property == config->prop_vrr_enabled) { |
425 | state->vrr_enabled = val; | |
72fdb40c DV |
426 | } else if (property == config->degamma_lut_property) { |
427 | ret = drm_atomic_replace_property_blob_from_id(dev, | |
428 | &state->degamma_lut, | |
429 | val, | |
430 | -1, sizeof(struct drm_color_lut), | |
431 | &replaced); | |
432 | state->color_mgmt_changed |= replaced; | |
433 | return ret; | |
434 | } else if (property == config->ctm_property) { | |
435 | ret = drm_atomic_replace_property_blob_from_id(dev, | |
436 | &state->ctm, | |
437 | val, | |
438 | sizeof(struct drm_color_ctm), -1, | |
439 | &replaced); | |
440 | state->color_mgmt_changed |= replaced; | |
441 | return ret; | |
442 | } else if (property == config->gamma_lut_property) { | |
443 | ret = drm_atomic_replace_property_blob_from_id(dev, | |
444 | &state->gamma_lut, | |
445 | val, | |
446 | -1, sizeof(struct drm_color_lut), | |
447 | &replaced); | |
448 | state->color_mgmt_changed |= replaced; | |
449 | return ret; | |
450 | } else if (property == config->prop_out_fence_ptr) { | |
451 | s32 __user *fence_ptr = u64_to_user_ptr(val); | |
452 | ||
453 | if (!fence_ptr) | |
454 | return 0; | |
455 | ||
456 | if (put_user(-1, fence_ptr)) | |
457 | return -EFAULT; | |
458 | ||
459 | set_out_fence_for_crtc(state->state, crtc, fence_ptr); | |
5c759eda PB |
460 | } else if (property == crtc->scaling_filter_property) { |
461 | state->scaling_filter = val; | |
72fdb40c DV |
462 | } else if (crtc->funcs->atomic_set_property) { |
463 | return crtc->funcs->atomic_set_property(crtc, state, property, val); | |
464 | } else { | |
e3aae683 | 465 | drm_dbg_atomic(crtc->dev, |
efc8ece2 | 466 | "[CRTC:%d:%s] unknown property [PROP:%d:%s]\n", |
e3aae683 SS |
467 | crtc->base.id, crtc->name, |
468 | property->base.id, property->name); | |
72fdb40c DV |
469 | return -EINVAL; |
470 | } | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
475 | static int | |
476 | drm_atomic_crtc_get_property(struct drm_crtc *crtc, | |
477 | const struct drm_crtc_state *state, | |
478 | struct drm_property *property, uint64_t *val) | |
479 | { | |
480 | struct drm_device *dev = crtc->dev; | |
481 | struct drm_mode_config *config = &dev->mode_config; | |
482 | ||
483 | if (property == config->prop_active) | |
1452c25b | 484 | *val = drm_atomic_crtc_effectively_active(state); |
72fdb40c DV |
485 | else if (property == config->prop_mode_id) |
486 | *val = (state->mode_blob) ? state->mode_blob->base.id : 0; | |
1398958c NK |
487 | else if (property == config->prop_vrr_enabled) |
488 | *val = state->vrr_enabled; | |
72fdb40c DV |
489 | else if (property == config->degamma_lut_property) |
490 | *val = (state->degamma_lut) ? state->degamma_lut->base.id : 0; | |
491 | else if (property == config->ctm_property) | |
492 | *val = (state->ctm) ? state->ctm->base.id : 0; | |
493 | else if (property == config->gamma_lut_property) | |
494 | *val = (state->gamma_lut) ? state->gamma_lut->base.id : 0; | |
495 | else if (property == config->prop_out_fence_ptr) | |
496 | *val = 0; | |
5c759eda PB |
497 | else if (property == crtc->scaling_filter_property) |
498 | *val = state->scaling_filter; | |
72fdb40c DV |
499 | else if (crtc->funcs->atomic_get_property) |
500 | return crtc->funcs->atomic_get_property(crtc, state, property, val); | |
e51259d7 SS |
501 | else { |
502 | drm_dbg_atomic(dev, | |
503 | "[CRTC:%d:%s] unknown property [PROP:%d:%s]\n", | |
504 | crtc->base.id, crtc->name, | |
505 | property->base.id, property->name); | |
72fdb40c | 506 | return -EINVAL; |
e51259d7 | 507 | } |
72fdb40c DV |
508 | |
509 | return 0; | |
510 | } | |
511 | ||
512 | static int drm_atomic_plane_set_property(struct drm_plane *plane, | |
36e4523a DV |
513 | struct drm_plane_state *state, struct drm_file *file_priv, |
514 | struct drm_property *property, uint64_t val) | |
72fdb40c DV |
515 | { |
516 | struct drm_device *dev = plane->dev; | |
517 | struct drm_mode_config *config = &dev->mode_config; | |
d3b21767 LS |
518 | bool replaced = false; |
519 | int ret; | |
72fdb40c DV |
520 | |
521 | if (property == config->prop_fb_id) { | |
36e4523a | 522 | struct drm_framebuffer *fb; |
948de842 | 523 | |
36e4523a | 524 | fb = drm_framebuffer_lookup(dev, file_priv, val); |
72fdb40c DV |
525 | drm_atomic_set_fb_for_plane(state, fb); |
526 | if (fb) | |
527 | drm_framebuffer_put(fb); | |
528 | } else if (property == config->prop_in_fence_fd) { | |
529 | if (state->fence) | |
530 | return -EINVAL; | |
531 | ||
532 | if (U642I64(val) == -1) | |
533 | return 0; | |
534 | ||
535 | state->fence = sync_file_get_fence(val); | |
536 | if (!state->fence) | |
537 | return -EINVAL; | |
538 | ||
539 | } else if (property == config->prop_crtc_id) { | |
36e4523a | 540 | struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val); |
948de842 | 541 | |
311eca64 SS |
542 | if (val && !crtc) { |
543 | drm_dbg_atomic(dev, | |
544 | "[PROP:%d:%s] cannot find CRTC with ID %llu\n", | |
545 | property->base.id, property->name, val); | |
b8c7d7bc | 546 | return -EACCES; |
311eca64 | 547 | } |
72fdb40c DV |
548 | return drm_atomic_set_crtc_for_plane(state, crtc); |
549 | } else if (property == config->prop_crtc_x) { | |
550 | state->crtc_x = U642I64(val); | |
551 | } else if (property == config->prop_crtc_y) { | |
552 | state->crtc_y = U642I64(val); | |
553 | } else if (property == config->prop_crtc_w) { | |
554 | state->crtc_w = val; | |
555 | } else if (property == config->prop_crtc_h) { | |
556 | state->crtc_h = val; | |
557 | } else if (property == config->prop_src_x) { | |
558 | state->src_x = val; | |
559 | } else if (property == config->prop_src_y) { | |
560 | state->src_y = val; | |
561 | } else if (property == config->prop_src_w) { | |
562 | state->src_w = val; | |
563 | } else if (property == config->prop_src_h) { | |
564 | state->src_h = val; | |
565 | } else if (property == plane->alpha_property) { | |
566 | state->alpha = val; | |
567 | } else if (property == plane->blend_mode_property) { | |
568 | state->pixel_blend_mode = val; | |
569 | } else if (property == plane->rotation_property) { | |
570 | if (!is_power_of_2(val & DRM_MODE_ROTATE_MASK)) { | |
e3aae683 SS |
571 | drm_dbg_atomic(plane->dev, |
572 | "[PLANE:%d:%s] bad rotation bitmask: 0x%llx\n", | |
573 | plane->base.id, plane->name, val); | |
72fdb40c DV |
574 | return -EINVAL; |
575 | } | |
576 | state->rotation = val; | |
577 | } else if (property == plane->zpos_property) { | |
578 | state->zpos = val; | |
579 | } else if (property == plane->color_encoding_property) { | |
580 | state->color_encoding = val; | |
581 | } else if (property == plane->color_range_property) { | |
582 | state->color_range = val; | |
d3b21767 LS |
583 | } else if (property == config->prop_fb_damage_clips) { |
584 | ret = drm_atomic_replace_property_blob_from_id(dev, | |
585 | &state->fb_damage_clips, | |
586 | val, | |
587 | -1, | |
588 | sizeof(struct drm_rect), | |
589 | &replaced); | |
590 | return ret; | |
5c759eda PB |
591 | } else if (property == plane->scaling_filter_property) { |
592 | state->scaling_filter = val; | |
72fdb40c DV |
593 | } else if (plane->funcs->atomic_set_property) { |
594 | return plane->funcs->atomic_set_property(plane, state, | |
595 | property, val); | |
596 | } else { | |
e3aae683 | 597 | drm_dbg_atomic(plane->dev, |
efc8ece2 | 598 | "[PLANE:%d:%s] unknown property [PROP:%d:%s]\n", |
e3aae683 SS |
599 | plane->base.id, plane->name, |
600 | property->base.id, property->name); | |
72fdb40c DV |
601 | return -EINVAL; |
602 | } | |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | static int | |
608 | drm_atomic_plane_get_property(struct drm_plane *plane, | |
609 | const struct drm_plane_state *state, | |
610 | struct drm_property *property, uint64_t *val) | |
611 | { | |
612 | struct drm_device *dev = plane->dev; | |
613 | struct drm_mode_config *config = &dev->mode_config; | |
614 | ||
615 | if (property == config->prop_fb_id) { | |
616 | *val = (state->fb) ? state->fb->base.id : 0; | |
617 | } else if (property == config->prop_in_fence_fd) { | |
618 | *val = -1; | |
619 | } else if (property == config->prop_crtc_id) { | |
620 | *val = (state->crtc) ? state->crtc->base.id : 0; | |
621 | } else if (property == config->prop_crtc_x) { | |
622 | *val = I642U64(state->crtc_x); | |
623 | } else if (property == config->prop_crtc_y) { | |
624 | *val = I642U64(state->crtc_y); | |
625 | } else if (property == config->prop_crtc_w) { | |
626 | *val = state->crtc_w; | |
627 | } else if (property == config->prop_crtc_h) { | |
628 | *val = state->crtc_h; | |
629 | } else if (property == config->prop_src_x) { | |
630 | *val = state->src_x; | |
631 | } else if (property == config->prop_src_y) { | |
632 | *val = state->src_y; | |
633 | } else if (property == config->prop_src_w) { | |
634 | *val = state->src_w; | |
635 | } else if (property == config->prop_src_h) { | |
636 | *val = state->src_h; | |
637 | } else if (property == plane->alpha_property) { | |
638 | *val = state->alpha; | |
639 | } else if (property == plane->blend_mode_property) { | |
640 | *val = state->pixel_blend_mode; | |
641 | } else if (property == plane->rotation_property) { | |
642 | *val = state->rotation; | |
643 | } else if (property == plane->zpos_property) { | |
644 | *val = state->zpos; | |
645 | } else if (property == plane->color_encoding_property) { | |
646 | *val = state->color_encoding; | |
647 | } else if (property == plane->color_range_property) { | |
648 | *val = state->color_range; | |
d3b21767 LS |
649 | } else if (property == config->prop_fb_damage_clips) { |
650 | *val = (state->fb_damage_clips) ? | |
651 | state->fb_damage_clips->base.id : 0; | |
5c759eda PB |
652 | } else if (property == plane->scaling_filter_property) { |
653 | *val = state->scaling_filter; | |
72fdb40c DV |
654 | } else if (plane->funcs->atomic_get_property) { |
655 | return plane->funcs->atomic_get_property(plane, state, property, val); | |
656 | } else { | |
e51259d7 SS |
657 | drm_dbg_atomic(dev, |
658 | "[PLANE:%d:%s] unknown property [PROP:%d:%s]\n", | |
659 | plane->base.id, plane->name, | |
660 | property->base.id, property->name); | |
72fdb40c DV |
661 | return -EINVAL; |
662 | } | |
663 | ||
664 | return 0; | |
665 | } | |
666 | ||
72fdb40c DV |
667 | static int drm_atomic_set_writeback_fb_for_connector( |
668 | struct drm_connector_state *conn_state, | |
669 | struct drm_framebuffer *fb) | |
670 | { | |
9d2230dc | 671 | int ret; |
e3aae683 | 672 | struct drm_connector *conn = conn_state->connector; |
72fdb40c | 673 | |
9d2230dc LP |
674 | ret = drm_writeback_set_fb(conn_state, fb); |
675 | if (ret < 0) | |
676 | return ret; | |
72fdb40c DV |
677 | |
678 | if (fb) | |
e3aae683 SS |
679 | drm_dbg_atomic(conn->dev, |
680 | "Set [FB:%d] for connector state %p\n", | |
681 | fb->base.id, conn_state); | |
72fdb40c | 682 | else |
e3aae683 SS |
683 | drm_dbg_atomic(conn->dev, |
684 | "Set [NOFB] for connector state %p\n", | |
685 | conn_state); | |
72fdb40c DV |
686 | |
687 | return 0; | |
688 | } | |
689 | ||
690 | static int drm_atomic_connector_set_property(struct drm_connector *connector, | |
36e4523a DV |
691 | struct drm_connector_state *state, struct drm_file *file_priv, |
692 | struct drm_property *property, uint64_t val) | |
72fdb40c DV |
693 | { |
694 | struct drm_device *dev = connector->dev; | |
695 | struct drm_mode_config *config = &dev->mode_config; | |
fbb5d035 US |
696 | bool replaced = false; |
697 | int ret; | |
72fdb40c DV |
698 | |
699 | if (property == config->prop_crtc_id) { | |
36e4523a | 700 | struct drm_crtc *crtc = drm_crtc_find(dev, file_priv, val); |
948de842 | 701 | |
311eca64 SS |
702 | if (val && !crtc) { |
703 | drm_dbg_atomic(dev, | |
704 | "[PROP:%d:%s] cannot find CRTC with ID %llu\n", | |
705 | property->base.id, property->name, val); | |
b8c7d7bc | 706 | return -EACCES; |
311eca64 | 707 | } |
72fdb40c DV |
708 | return drm_atomic_set_crtc_for_connector(state, crtc); |
709 | } else if (property == config->dpms_property) { | |
710 | /* setting DPMS property requires special handling, which | |
711 | * is done in legacy setprop path for us. Disallow (for | |
712 | * now?) atomic writes to DPMS property: | |
713 | */ | |
d43b3cdc SS |
714 | drm_dbg_atomic(dev, |
715 | "legacy [PROP:%d:%s] can only be set via legacy uAPI\n", | |
716 | property->base.id, property->name); | |
72fdb40c DV |
717 | return -EINVAL; |
718 | } else if (property == config->tv_select_subconnector_property) { | |
d0236008 | 719 | state->tv.select_subconnector = val; |
941731a2 MR |
720 | } else if (property == config->tv_subconnector_property) { |
721 | state->tv.subconnector = val; | |
72fdb40c DV |
722 | } else if (property == config->tv_left_margin_property) { |
723 | state->tv.margins.left = val; | |
724 | } else if (property == config->tv_right_margin_property) { | |
725 | state->tv.margins.right = val; | |
726 | } else if (property == config->tv_top_margin_property) { | |
727 | state->tv.margins.top = val; | |
728 | } else if (property == config->tv_bottom_margin_property) { | |
729 | state->tv.margins.bottom = val; | |
1fd4a5a3 MR |
730 | } else if (property == config->legacy_tv_mode_property) { |
731 | state->tv.legacy_mode = val; | |
7d63cd85 MR |
732 | } else if (property == config->tv_mode_property) { |
733 | state->tv.mode = val; | |
72fdb40c DV |
734 | } else if (property == config->tv_brightness_property) { |
735 | state->tv.brightness = val; | |
736 | } else if (property == config->tv_contrast_property) { | |
737 | state->tv.contrast = val; | |
738 | } else if (property == config->tv_flicker_reduction_property) { | |
739 | state->tv.flicker_reduction = val; | |
740 | } else if (property == config->tv_overscan_property) { | |
741 | state->tv.overscan = val; | |
742 | } else if (property == config->tv_saturation_property) { | |
743 | state->tv.saturation = val; | |
744 | } else if (property == config->tv_hue_property) { | |
745 | state->tv.hue = val; | |
746 | } else if (property == config->link_status_property) { | |
747 | /* Never downgrade from GOOD to BAD on userspace's request here, | |
748 | * only hw issues can do that. | |
749 | * | |
750 | * For an atomic property the userspace doesn't need to be able | |
751 | * to understand all the properties, but needs to be able to | |
752 | * restore the state it wants on VT switch. So if the userspace | |
753 | * tries to change the link_status from GOOD to BAD, driver | |
754 | * silently rejects it and returns a 0. This prevents userspace | |
0ae865ef | 755 | * from accidentally breaking the display when it restores the |
72fdb40c DV |
756 | * state. |
757 | */ | |
758 | if (state->link_status != DRM_LINK_STATUS_GOOD) | |
759 | state->link_status = val; | |
fbb5d035 US |
760 | } else if (property == config->hdr_output_metadata_property) { |
761 | ret = drm_atomic_replace_property_blob_from_id(dev, | |
762 | &state->hdr_output_metadata, | |
763 | val, | |
764 | sizeof(struct hdr_output_metadata), -1, | |
765 | &replaced); | |
766 | return ret; | |
72fdb40c DV |
767 | } else if (property == config->aspect_ratio_property) { |
768 | state->picture_aspect_ratio = val; | |
769 | } else if (property == config->content_type_property) { | |
770 | state->content_type = val; | |
771 | } else if (property == connector->scaling_mode_property) { | |
772 | state->scaling_mode = val; | |
585b000d | 773 | } else if (property == config->content_protection_property) { |
72fdb40c | 774 | if (val == DRM_MODE_CONTENT_PROTECTION_ENABLED) { |
6e22dc35 | 775 | drm_dbg_kms(dev, "only drivers can set CP Enabled\n"); |
72fdb40c DV |
776 | return -EINVAL; |
777 | } | |
778 | state->content_protection = val; | |
7672dbba R |
779 | } else if (property == config->hdcp_content_type_property) { |
780 | state->hdcp_content_type = val; | |
d2c6a405 US |
781 | } else if (property == connector->colorspace_property) { |
782 | state->colorspace = val; | |
72fdb40c | 783 | } else if (property == config->writeback_fb_id_property) { |
36e4523a DV |
784 | struct drm_framebuffer *fb; |
785 | int ret; | |
948de842 | 786 | |
36e4523a DV |
787 | fb = drm_framebuffer_lookup(dev, file_priv, val); |
788 | ret = drm_atomic_set_writeback_fb_for_connector(state, fb); | |
72fdb40c DV |
789 | if (fb) |
790 | drm_framebuffer_put(fb); | |
791 | return ret; | |
792 | } else if (property == config->writeback_out_fence_ptr_property) { | |
793 | s32 __user *fence_ptr = u64_to_user_ptr(val); | |
794 | ||
795 | return set_out_fence_for_connector(state->state, connector, | |
796 | fence_ptr); | |
47e22ff1 RS |
797 | } else if (property == connector->max_bpc_property) { |
798 | state->max_requested_bpc = val; | |
107fe904 RJ |
799 | } else if (property == connector->privacy_screen_sw_state_property) { |
800 | state->privacy_screen_sw_state = val; | |
72fdb40c DV |
801 | } else if (connector->funcs->atomic_set_property) { |
802 | return connector->funcs->atomic_set_property(connector, | |
803 | state, property, val); | |
804 | } else { | |
e3aae683 | 805 | drm_dbg_atomic(connector->dev, |
efc8ece2 | 806 | "[CONNECTOR:%d:%s] unknown property [PROP:%d:%s]\n", |
e3aae683 SS |
807 | connector->base.id, connector->name, |
808 | property->base.id, property->name); | |
72fdb40c DV |
809 | return -EINVAL; |
810 | } | |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
815 | static int | |
816 | drm_atomic_connector_get_property(struct drm_connector *connector, | |
817 | const struct drm_connector_state *state, | |
818 | struct drm_property *property, uint64_t *val) | |
819 | { | |
820 | struct drm_device *dev = connector->dev; | |
821 | struct drm_mode_config *config = &dev->mode_config; | |
822 | ||
823 | if (property == config->prop_crtc_id) { | |
824 | *val = (state->crtc) ? state->crtc->base.id : 0; | |
825 | } else if (property == config->dpms_property) { | |
1452c25b SP |
826 | if (state->crtc && state->crtc->state->self_refresh_active) |
827 | *val = DRM_MODE_DPMS_ON; | |
828 | else | |
829 | *val = connector->dpms; | |
72fdb40c | 830 | } else if (property == config->tv_select_subconnector_property) { |
d0236008 | 831 | *val = state->tv.select_subconnector; |
941731a2 MR |
832 | } else if (property == config->tv_subconnector_property) { |
833 | *val = state->tv.subconnector; | |
72fdb40c DV |
834 | } else if (property == config->tv_left_margin_property) { |
835 | *val = state->tv.margins.left; | |
836 | } else if (property == config->tv_right_margin_property) { | |
837 | *val = state->tv.margins.right; | |
838 | } else if (property == config->tv_top_margin_property) { | |
839 | *val = state->tv.margins.top; | |
840 | } else if (property == config->tv_bottom_margin_property) { | |
841 | *val = state->tv.margins.bottom; | |
1fd4a5a3 MR |
842 | } else if (property == config->legacy_tv_mode_property) { |
843 | *val = state->tv.legacy_mode; | |
7d63cd85 MR |
844 | } else if (property == config->tv_mode_property) { |
845 | *val = state->tv.mode; | |
72fdb40c DV |
846 | } else if (property == config->tv_brightness_property) { |
847 | *val = state->tv.brightness; | |
848 | } else if (property == config->tv_contrast_property) { | |
849 | *val = state->tv.contrast; | |
850 | } else if (property == config->tv_flicker_reduction_property) { | |
851 | *val = state->tv.flicker_reduction; | |
852 | } else if (property == config->tv_overscan_property) { | |
853 | *val = state->tv.overscan; | |
854 | } else if (property == config->tv_saturation_property) { | |
855 | *val = state->tv.saturation; | |
856 | } else if (property == config->tv_hue_property) { | |
857 | *val = state->tv.hue; | |
858 | } else if (property == config->link_status_property) { | |
859 | *val = state->link_status; | |
860 | } else if (property == config->aspect_ratio_property) { | |
861 | *val = state->picture_aspect_ratio; | |
862 | } else if (property == config->content_type_property) { | |
863 | *val = state->content_type; | |
d2c6a405 US |
864 | } else if (property == connector->colorspace_property) { |
865 | *val = state->colorspace; | |
72fdb40c DV |
866 | } else if (property == connector->scaling_mode_property) { |
867 | *val = state->scaling_mode; | |
fbb5d035 US |
868 | } else if (property == config->hdr_output_metadata_property) { |
869 | *val = state->hdr_output_metadata ? | |
870 | state->hdr_output_metadata->base.id : 0; | |
585b000d | 871 | } else if (property == config->content_protection_property) { |
72fdb40c | 872 | *val = state->content_protection; |
7672dbba R |
873 | } else if (property == config->hdcp_content_type_property) { |
874 | *val = state->hdcp_content_type; | |
72fdb40c DV |
875 | } else if (property == config->writeback_fb_id_property) { |
876 | /* Writeback framebuffer is one-shot, write and forget */ | |
877 | *val = 0; | |
878 | } else if (property == config->writeback_out_fence_ptr_property) { | |
879 | *val = 0; | |
47e22ff1 RS |
880 | } else if (property == connector->max_bpc_property) { |
881 | *val = state->max_requested_bpc; | |
107fe904 RJ |
882 | } else if (property == connector->privacy_screen_sw_state_property) { |
883 | *val = state->privacy_screen_sw_state; | |
72fdb40c DV |
884 | } else if (connector->funcs->atomic_get_property) { |
885 | return connector->funcs->atomic_get_property(connector, | |
886 | state, property, val); | |
887 | } else { | |
e51259d7 SS |
888 | drm_dbg_atomic(dev, |
889 | "[CONNECTOR:%d:%s] unknown property [PROP:%d:%s]\n", | |
890 | connector->base.id, connector->name, | |
891 | property->base.id, property->name); | |
72fdb40c DV |
892 | return -EINVAL; |
893 | } | |
894 | ||
895 | return 0; | |
896 | } | |
897 | ||
898 | int drm_atomic_get_property(struct drm_mode_object *obj, | |
899 | struct drm_property *property, uint64_t *val) | |
900 | { | |
901 | struct drm_device *dev = property->dev; | |
902 | int ret; | |
903 | ||
904 | switch (obj->type) { | |
905 | case DRM_MODE_OBJECT_CONNECTOR: { | |
906 | struct drm_connector *connector = obj_to_connector(obj); | |
948de842 | 907 | |
72fdb40c DV |
908 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
909 | ret = drm_atomic_connector_get_property(connector, | |
910 | connector->state, property, val); | |
911 | break; | |
912 | } | |
913 | case DRM_MODE_OBJECT_CRTC: { | |
914 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
948de842 | 915 | |
72fdb40c DV |
916 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); |
917 | ret = drm_atomic_crtc_get_property(crtc, | |
918 | crtc->state, property, val); | |
919 | break; | |
920 | } | |
921 | case DRM_MODE_OBJECT_PLANE: { | |
922 | struct drm_plane *plane = obj_to_plane(obj); | |
948de842 | 923 | |
72fdb40c DV |
924 | WARN_ON(!drm_modeset_is_locked(&plane->mutex)); |
925 | ret = drm_atomic_plane_get_property(plane, | |
926 | plane->state, property, val); | |
927 | break; | |
928 | } | |
929 | default: | |
e51259d7 | 930 | drm_dbg_atomic(dev, "[OBJECT:%d] has no properties\n", obj->id); |
72fdb40c DV |
931 | ret = -EINVAL; |
932 | break; | |
933 | } | |
934 | ||
935 | return ret; | |
936 | } | |
937 | ||
938 | /* | |
939 | * The big monster ioctl | |
940 | */ | |
941 | ||
942 | static struct drm_pending_vblank_event *create_vblank_event( | |
943 | struct drm_crtc *crtc, uint64_t user_data) | |
944 | { | |
945 | struct drm_pending_vblank_event *e = NULL; | |
946 | ||
947 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
948 | if (!e) | |
949 | return NULL; | |
950 | ||
951 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; | |
952 | e->event.base.length = sizeof(e->event); | |
953 | e->event.vbl.crtc_id = crtc->base.id; | |
954 | e->event.vbl.user_data = user_data; | |
955 | ||
956 | return e; | |
957 | } | |
958 | ||
959 | int drm_atomic_connector_commit_dpms(struct drm_atomic_state *state, | |
960 | struct drm_connector *connector, | |
961 | int mode) | |
962 | { | |
963 | struct drm_connector *tmp_connector; | |
964 | struct drm_connector_state *new_conn_state; | |
965 | struct drm_crtc *crtc; | |
966 | struct drm_crtc_state *crtc_state; | |
967 | int i, ret, old_mode = connector->dpms; | |
968 | bool active = false; | |
969 | ||
970 | ret = drm_modeset_lock(&state->dev->mode_config.connection_mutex, | |
971 | state->acquire_ctx); | |
972 | if (ret) | |
973 | return ret; | |
974 | ||
975 | if (mode != DRM_MODE_DPMS_ON) | |
976 | mode = DRM_MODE_DPMS_OFF; | |
977 | connector->dpms = mode; | |
978 | ||
979 | crtc = connector->state->crtc; | |
980 | if (!crtc) | |
981 | goto out; | |
982 | ret = drm_atomic_add_affected_connectors(state, crtc); | |
983 | if (ret) | |
984 | goto out; | |
985 | ||
986 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
987 | if (IS_ERR(crtc_state)) { | |
988 | ret = PTR_ERR(crtc_state); | |
989 | goto out; | |
990 | } | |
991 | ||
992 | for_each_new_connector_in_state(state, tmp_connector, new_conn_state, i) { | |
993 | if (new_conn_state->crtc != crtc) | |
994 | continue; | |
995 | if (tmp_connector->dpms == DRM_MODE_DPMS_ON) { | |
996 | active = true; | |
997 | break; | |
998 | } | |
999 | } | |
1000 | ||
1001 | crtc_state->active = active; | |
1002 | ret = drm_atomic_commit(state); | |
1003 | out: | |
1004 | if (ret != 0) | |
1005 | connector->dpms = old_mode; | |
1006 | return ret; | |
1007 | } | |
1008 | ||
1009 | int drm_atomic_set_property(struct drm_atomic_state *state, | |
36e4523a | 1010 | struct drm_file *file_priv, |
72fdb40c DV |
1011 | struct drm_mode_object *obj, |
1012 | struct drm_property *prop, | |
1013 | uint64_t prop_value) | |
1014 | { | |
1015 | struct drm_mode_object *ref; | |
1016 | int ret; | |
1017 | ||
1018 | if (!drm_property_change_valid_get(prop, prop_value, &ref)) | |
1019 | return -EINVAL; | |
1020 | ||
1021 | switch (obj->type) { | |
1022 | case DRM_MODE_OBJECT_CONNECTOR: { | |
1023 | struct drm_connector *connector = obj_to_connector(obj); | |
1024 | struct drm_connector_state *connector_state; | |
1025 | ||
1026 | connector_state = drm_atomic_get_connector_state(state, connector); | |
1027 | if (IS_ERR(connector_state)) { | |
1028 | ret = PTR_ERR(connector_state); | |
1029 | break; | |
1030 | } | |
1031 | ||
1032 | ret = drm_atomic_connector_set_property(connector, | |
36e4523a DV |
1033 | connector_state, file_priv, |
1034 | prop, prop_value); | |
72fdb40c DV |
1035 | break; |
1036 | } | |
1037 | case DRM_MODE_OBJECT_CRTC: { | |
1038 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
1039 | struct drm_crtc_state *crtc_state; | |
1040 | ||
1041 | crtc_state = drm_atomic_get_crtc_state(state, crtc); | |
1042 | if (IS_ERR(crtc_state)) { | |
1043 | ret = PTR_ERR(crtc_state); | |
1044 | break; | |
1045 | } | |
1046 | ||
1047 | ret = drm_atomic_crtc_set_property(crtc, | |
1048 | crtc_state, prop, prop_value); | |
1049 | break; | |
1050 | } | |
1051 | case DRM_MODE_OBJECT_PLANE: { | |
1052 | struct drm_plane *plane = obj_to_plane(obj); | |
1053 | struct drm_plane_state *plane_state; | |
1054 | ||
1055 | plane_state = drm_atomic_get_plane_state(state, plane); | |
1056 | if (IS_ERR(plane_state)) { | |
1057 | ret = PTR_ERR(plane_state); | |
1058 | break; | |
1059 | } | |
1060 | ||
1061 | ret = drm_atomic_plane_set_property(plane, | |
36e4523a DV |
1062 | plane_state, file_priv, |
1063 | prop, prop_value); | |
72fdb40c DV |
1064 | break; |
1065 | } | |
1066 | default: | |
e51259d7 | 1067 | drm_dbg_atomic(prop->dev, "[OBJECT:%d] has no properties\n", obj->id); |
72fdb40c DV |
1068 | ret = -EINVAL; |
1069 | break; | |
1070 | } | |
1071 | ||
1072 | drm_property_change_valid_put(prop, ref); | |
1073 | return ret; | |
1074 | } | |
1075 | ||
1076 | /** | |
1077 | * DOC: explicit fencing properties | |
1078 | * | |
1079 | * Explicit fencing allows userspace to control the buffer synchronization | |
0ae865ef | 1080 | * between devices. A Fence or a group of fences are transferred to/from |
72fdb40c DV |
1081 | * userspace using Sync File fds and there are two DRM properties for that. |
1082 | * IN_FENCE_FD on each DRM Plane to send fences to the kernel and | |
1083 | * OUT_FENCE_PTR on each DRM CRTC to receive fences from the kernel. | |
1084 | * | |
1085 | * As a contrast, with implicit fencing the kernel keeps track of any | |
1086 | * ongoing rendering, and automatically ensures that the atomic update waits | |
1ea28bc5 CK |
1087 | * for any pending rendering to complete. This is usually tracked in &struct |
1088 | * dma_resv which can also contain mandatory kernel fences. Implicit syncing | |
1089 | * is how Linux traditionally worked (e.g. DRI2/3 on X.org), whereas explicit | |
1090 | * fencing is what Android wants. | |
72fdb40c DV |
1091 | * |
1092 | * "IN_FENCE_FD”: | |
1093 | * Use this property to pass a fence that DRM should wait on before | |
1094 | * proceeding with the Atomic Commit request and show the framebuffer for | |
1095 | * the plane on the screen. The fence can be either a normal fence or a | |
1096 | * merged one, the sync_file framework will handle both cases and use a | |
1097 | * fence_array if a merged fence is received. Passing -1 here means no | |
1098 | * fences to wait on. | |
1099 | * | |
1100 | * If the Atomic Commit request has the DRM_MODE_ATOMIC_TEST_ONLY flag | |
1101 | * it will only check if the Sync File is a valid one. | |
1102 | * | |
1103 | * On the driver side the fence is stored on the @fence parameter of | |
1104 | * &struct drm_plane_state. Drivers which also support implicit fencing | |
1ea28bc5 | 1105 | * should extract the implicit fence using drm_gem_plane_helper_prepare_fb(), |
72fdb40c DV |
1106 | * to make sure there's consistent behaviour between drivers in precedence |
1107 | * of implicit vs. explicit fencing. | |
1108 | * | |
1109 | * "OUT_FENCE_PTR”: | |
1110 | * Use this property to pass a file descriptor pointer to DRM. Once the | |
1111 | * Atomic Commit request call returns OUT_FENCE_PTR will be filled with | |
1112 | * the file descriptor number of a Sync File. This Sync File contains the | |
1113 | * CRTC fence that will be signaled when all framebuffers present on the | |
1114 | * Atomic Commit * request for that given CRTC are scanned out on the | |
1115 | * screen. | |
1116 | * | |
1117 | * The Atomic Commit request fails if a invalid pointer is passed. If the | |
1118 | * Atomic Commit request fails for any other reason the out fence fd | |
1119 | * returned will be -1. On a Atomic Commit with the | |
1120 | * DRM_MODE_ATOMIC_TEST_ONLY flag the out fence will also be set to -1. | |
1121 | * | |
1122 | * Note that out-fences don't have a special interface to drivers and are | |
1123 | * internally represented by a &struct drm_pending_vblank_event in struct | |
1124 | * &drm_crtc_state, which is also used by the nonblocking atomic commit | |
1125 | * helpers and for the DRM event handling for existing userspace. | |
1126 | */ | |
1127 | ||
1128 | struct drm_out_fence_state { | |
1129 | s32 __user *out_fence_ptr; | |
1130 | struct sync_file *sync_file; | |
1131 | int fd; | |
1132 | }; | |
1133 | ||
1134 | static int setup_out_fence(struct drm_out_fence_state *fence_state, | |
1135 | struct dma_fence *fence) | |
1136 | { | |
1137 | fence_state->fd = get_unused_fd_flags(O_CLOEXEC); | |
1138 | if (fence_state->fd < 0) | |
1139 | return fence_state->fd; | |
1140 | ||
1141 | if (put_user(fence_state->fd, fence_state->out_fence_ptr)) | |
1142 | return -EFAULT; | |
1143 | ||
1144 | fence_state->sync_file = sync_file_create(fence); | |
1145 | if (!fence_state->sync_file) | |
1146 | return -ENOMEM; | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | static int prepare_signaling(struct drm_device *dev, | |
1152 | struct drm_atomic_state *state, | |
1153 | struct drm_mode_atomic *arg, | |
1154 | struct drm_file *file_priv, | |
1155 | struct drm_out_fence_state **fence_state, | |
1156 | unsigned int *num_fences) | |
1157 | { | |
1158 | struct drm_crtc *crtc; | |
1159 | struct drm_crtc_state *crtc_state; | |
1160 | struct drm_connector *conn; | |
1161 | struct drm_connector_state *conn_state; | |
1162 | int i, c = 0, ret; | |
1163 | ||
1164 | if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) | |
1165 | return 0; | |
1166 | ||
1167 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { | |
1168 | s32 __user *fence_ptr; | |
1169 | ||
1170 | fence_ptr = get_out_fence_for_crtc(crtc_state->state, crtc); | |
1171 | ||
1172 | if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT || fence_ptr) { | |
1173 | struct drm_pending_vblank_event *e; | |
1174 | ||
1175 | e = create_vblank_event(crtc, arg->user_data); | |
1176 | if (!e) | |
1177 | return -ENOMEM; | |
1178 | ||
1179 | crtc_state->event = e; | |
1180 | } | |
1181 | ||
1182 | if (arg->flags & DRM_MODE_PAGE_FLIP_EVENT) { | |
1183 | struct drm_pending_vblank_event *e = crtc_state->event; | |
1184 | ||
1185 | if (!file_priv) | |
1186 | continue; | |
1187 | ||
1188 | ret = drm_event_reserve_init(dev, file_priv, &e->base, | |
1189 | &e->event.base); | |
1190 | if (ret) { | |
1191 | kfree(e); | |
1192 | crtc_state->event = NULL; | |
1193 | return ret; | |
1194 | } | |
1195 | } | |
1196 | ||
1197 | if (fence_ptr) { | |
1198 | struct dma_fence *fence; | |
1199 | struct drm_out_fence_state *f; | |
1200 | ||
1201 | f = krealloc(*fence_state, sizeof(**fence_state) * | |
1202 | (*num_fences + 1), GFP_KERNEL); | |
1203 | if (!f) | |
1204 | return -ENOMEM; | |
1205 | ||
1206 | memset(&f[*num_fences], 0, sizeof(*f)); | |
1207 | ||
1208 | f[*num_fences].out_fence_ptr = fence_ptr; | |
1209 | *fence_state = f; | |
1210 | ||
1211 | fence = drm_crtc_create_fence(crtc); | |
1212 | if (!fence) | |
1213 | return -ENOMEM; | |
1214 | ||
1215 | ret = setup_out_fence(&f[(*num_fences)++], fence); | |
1216 | if (ret) { | |
1217 | dma_fence_put(fence); | |
1218 | return ret; | |
1219 | } | |
1220 | ||
1221 | crtc_state->event->base.fence = fence; | |
1222 | } | |
1223 | ||
1224 | c++; | |
1225 | } | |
1226 | ||
1227 | for_each_new_connector_in_state(state, conn, conn_state, i) { | |
1228 | struct drm_writeback_connector *wb_conn; | |
72fdb40c DV |
1229 | struct drm_out_fence_state *f; |
1230 | struct dma_fence *fence; | |
1231 | s32 __user *fence_ptr; | |
1232 | ||
9d2230dc LP |
1233 | if (!conn_state->writeback_job) |
1234 | continue; | |
1235 | ||
72fdb40c DV |
1236 | fence_ptr = get_out_fence_for_connector(state, conn); |
1237 | if (!fence_ptr) | |
1238 | continue; | |
1239 | ||
72fdb40c DV |
1240 | f = krealloc(*fence_state, sizeof(**fence_state) * |
1241 | (*num_fences + 1), GFP_KERNEL); | |
1242 | if (!f) | |
1243 | return -ENOMEM; | |
1244 | ||
1245 | memset(&f[*num_fences], 0, sizeof(*f)); | |
1246 | ||
1247 | f[*num_fences].out_fence_ptr = fence_ptr; | |
1248 | *fence_state = f; | |
1249 | ||
1250 | wb_conn = drm_connector_to_writeback(conn); | |
1251 | fence = drm_writeback_get_out_fence(wb_conn); | |
1252 | if (!fence) | |
1253 | return -ENOMEM; | |
1254 | ||
1255 | ret = setup_out_fence(&f[(*num_fences)++], fence); | |
1256 | if (ret) { | |
1257 | dma_fence_put(fence); | |
1258 | return ret; | |
1259 | } | |
1260 | ||
9d2230dc | 1261 | conn_state->writeback_job->out_fence = fence; |
72fdb40c DV |
1262 | } |
1263 | ||
1264 | /* | |
1265 | * Having this flag means user mode pends on event which will never | |
1266 | * reach due to lack of at least one CRTC for signaling | |
1267 | */ | |
98f51854 SS |
1268 | if (c == 0 && (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) { |
1269 | drm_dbg_atomic(dev, "need at least one CRTC for DRM_MODE_PAGE_FLIP_EVENT"); | |
72fdb40c | 1270 | return -EINVAL; |
98f51854 | 1271 | } |
72fdb40c DV |
1272 | |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static void complete_signaling(struct drm_device *dev, | |
1277 | struct drm_atomic_state *state, | |
1278 | struct drm_out_fence_state *fence_state, | |
1279 | unsigned int num_fences, | |
1280 | bool install_fds) | |
1281 | { | |
1282 | struct drm_crtc *crtc; | |
1283 | struct drm_crtc_state *crtc_state; | |
1284 | int i; | |
1285 | ||
1286 | if (install_fds) { | |
1287 | for (i = 0; i < num_fences; i++) | |
1288 | fd_install(fence_state[i].fd, | |
1289 | fence_state[i].sync_file->file); | |
1290 | ||
1291 | kfree(fence_state); | |
1292 | return; | |
1293 | } | |
1294 | ||
1295 | for_each_new_crtc_in_state(state, crtc, crtc_state, i) { | |
1296 | struct drm_pending_vblank_event *event = crtc_state->event; | |
1297 | /* | |
1298 | * Free the allocated event. drm_atomic_helper_setup_commit | |
1299 | * can allocate an event too, so only free it if it's ours | |
1300 | * to prevent a double free in drm_atomic_state_clear. | |
1301 | */ | |
1302 | if (event && (event->base.fence || event->base.file_priv)) { | |
1303 | drm_event_cancel_free(dev, &event->base); | |
1304 | crtc_state->event = NULL; | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | if (!fence_state) | |
1309 | return; | |
1310 | ||
1311 | for (i = 0; i < num_fences; i++) { | |
1312 | if (fence_state[i].sync_file) | |
1313 | fput(fence_state[i].sync_file->file); | |
1314 | if (fence_state[i].fd >= 0) | |
1315 | put_unused_fd(fence_state[i].fd); | |
1316 | ||
1317 | /* If this fails log error to the user */ | |
1318 | if (fence_state[i].out_fence_ptr && | |
1319 | put_user(-1, fence_state[i].out_fence_ptr)) | |
e3aae683 | 1320 | drm_dbg_atomic(dev, "Couldn't clear out_fence_ptr\n"); |
72fdb40c DV |
1321 | } |
1322 | ||
1323 | kfree(fence_state); | |
1324 | } | |
1325 | ||
1326 | int drm_mode_atomic_ioctl(struct drm_device *dev, | |
1327 | void *data, struct drm_file *file_priv) | |
1328 | { | |
1329 | struct drm_mode_atomic *arg = data; | |
1330 | uint32_t __user *objs_ptr = (uint32_t __user *)(unsigned long)(arg->objs_ptr); | |
1331 | uint32_t __user *count_props_ptr = (uint32_t __user *)(unsigned long)(arg->count_props_ptr); | |
1332 | uint32_t __user *props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
1333 | uint64_t __user *prop_values_ptr = (uint64_t __user *)(unsigned long)(arg->prop_values_ptr); | |
1334 | unsigned int copied_objs, copied_props; | |
1335 | struct drm_atomic_state *state; | |
1336 | struct drm_modeset_acquire_ctx ctx; | |
1337 | struct drm_out_fence_state *fence_state; | |
1338 | int ret = 0; | |
1339 | unsigned int i, j, num_fences; | |
1340 | ||
1341 | /* disallow for drivers not supporting atomic: */ | |
1342 | if (!drm_core_check_feature(dev, DRIVER_ATOMIC)) | |
69fdf420 | 1343 | return -EOPNOTSUPP; |
72fdb40c DV |
1344 | |
1345 | /* disallow for userspace that has not enabled atomic cap (even | |
1346 | * though this may be a bit overkill, since legacy userspace | |
1347 | * wouldn't know how to call this ioctl) | |
1348 | */ | |
50f3d412 SS |
1349 | if (!file_priv->atomic) { |
1350 | drm_dbg_atomic(dev, | |
1351 | "commit failed: atomic cap not enabled\n"); | |
72fdb40c | 1352 | return -EINVAL; |
50f3d412 | 1353 | } |
72fdb40c | 1354 | |
50f3d412 SS |
1355 | if (arg->flags & ~DRM_MODE_ATOMIC_FLAGS) { |
1356 | drm_dbg_atomic(dev, "commit failed: invalid flag\n"); | |
72fdb40c | 1357 | return -EINVAL; |
50f3d412 | 1358 | } |
72fdb40c | 1359 | |
50f3d412 SS |
1360 | if (arg->reserved) { |
1361 | drm_dbg_atomic(dev, "commit failed: reserved field set\n"); | |
72fdb40c | 1362 | return -EINVAL; |
50f3d412 | 1363 | } |
72fdb40c | 1364 | |
50f3d412 SS |
1365 | if (arg->flags & DRM_MODE_PAGE_FLIP_ASYNC) { |
1366 | drm_dbg_atomic(dev, | |
1367 | "commit failed: invalid flag DRM_MODE_PAGE_FLIP_ASYNC\n"); | |
72fdb40c | 1368 | return -EINVAL; |
50f3d412 | 1369 | } |
72fdb40c DV |
1370 | |
1371 | /* can't test and expect an event at the same time. */ | |
1372 | if ((arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) && | |
50f3d412 SS |
1373 | (arg->flags & DRM_MODE_PAGE_FLIP_EVENT)) { |
1374 | drm_dbg_atomic(dev, | |
1375 | "commit failed: page-flip event requested with test-only commit\n"); | |
72fdb40c | 1376 | return -EINVAL; |
50f3d412 | 1377 | } |
72fdb40c | 1378 | |
72fdb40c DV |
1379 | state = drm_atomic_state_alloc(dev); |
1380 | if (!state) | |
1381 | return -ENOMEM; | |
1382 | ||
4089e272 | 1383 | drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); |
72fdb40c DV |
1384 | state->acquire_ctx = &ctx; |
1385 | state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET); | |
1386 | ||
1387 | retry: | |
1388 | copied_objs = 0; | |
1389 | copied_props = 0; | |
1390 | fence_state = NULL; | |
1391 | num_fences = 0; | |
1392 | ||
1393 | for (i = 0; i < arg->count_objs; i++) { | |
1394 | uint32_t obj_id, count_props; | |
1395 | struct drm_mode_object *obj; | |
1396 | ||
1397 | if (get_user(obj_id, objs_ptr + copied_objs)) { | |
1398 | ret = -EFAULT; | |
1399 | goto out; | |
1400 | } | |
1401 | ||
1402 | obj = drm_mode_object_find(dev, file_priv, obj_id, DRM_MODE_OBJECT_ANY); | |
1403 | if (!obj) { | |
83115e1a | 1404 | drm_dbg_atomic(dev, "cannot find object ID %d", obj_id); |
72fdb40c DV |
1405 | ret = -ENOENT; |
1406 | goto out; | |
1407 | } | |
1408 | ||
1409 | if (!obj->properties) { | |
83115e1a | 1410 | drm_dbg_atomic(dev, "[OBJECT:%d] has no properties", obj_id); |
72fdb40c DV |
1411 | drm_mode_object_put(obj); |
1412 | ret = -ENOENT; | |
1413 | goto out; | |
1414 | } | |
1415 | ||
1416 | if (get_user(count_props, count_props_ptr + copied_objs)) { | |
1417 | drm_mode_object_put(obj); | |
1418 | ret = -EFAULT; | |
1419 | goto out; | |
1420 | } | |
1421 | ||
1422 | copied_objs++; | |
1423 | ||
1424 | for (j = 0; j < count_props; j++) { | |
1425 | uint32_t prop_id; | |
1426 | uint64_t prop_value; | |
1427 | struct drm_property *prop; | |
1428 | ||
1429 | if (get_user(prop_id, props_ptr + copied_props)) { | |
1430 | drm_mode_object_put(obj); | |
1431 | ret = -EFAULT; | |
1432 | goto out; | |
1433 | } | |
1434 | ||
1435 | prop = drm_mode_obj_find_prop_id(obj, prop_id); | |
1436 | if (!prop) { | |
83115e1a SS |
1437 | drm_dbg_atomic(dev, |
1438 | "[OBJECT:%d] cannot find property ID %d", | |
1439 | obj_id, prop_id); | |
72fdb40c DV |
1440 | drm_mode_object_put(obj); |
1441 | ret = -ENOENT; | |
1442 | goto out; | |
1443 | } | |
1444 | ||
1445 | if (copy_from_user(&prop_value, | |
1446 | prop_values_ptr + copied_props, | |
1447 | sizeof(prop_value))) { | |
1448 | drm_mode_object_put(obj); | |
1449 | ret = -EFAULT; | |
1450 | goto out; | |
1451 | } | |
1452 | ||
36e4523a DV |
1453 | ret = drm_atomic_set_property(state, file_priv, |
1454 | obj, prop, prop_value); | |
72fdb40c DV |
1455 | if (ret) { |
1456 | drm_mode_object_put(obj); | |
1457 | goto out; | |
1458 | } | |
1459 | ||
1460 | copied_props++; | |
1461 | } | |
1462 | ||
1463 | drm_mode_object_put(obj); | |
1464 | } | |
1465 | ||
1466 | ret = prepare_signaling(dev, state, arg, file_priv, &fence_state, | |
1467 | &num_fences); | |
1468 | if (ret) | |
1469 | goto out; | |
1470 | ||
1471 | if (arg->flags & DRM_MODE_ATOMIC_TEST_ONLY) { | |
1472 | ret = drm_atomic_check_only(state); | |
1473 | } else if (arg->flags & DRM_MODE_ATOMIC_NONBLOCK) { | |
1474 | ret = drm_atomic_nonblocking_commit(state); | |
1475 | } else { | |
72fdb40c DV |
1476 | ret = drm_atomic_commit(state); |
1477 | } | |
1478 | ||
1479 | out: | |
1480 | complete_signaling(dev, state, fence_state, num_fences, !ret); | |
1481 | ||
1482 | if (ret == -EDEADLK) { | |
1483 | drm_atomic_state_clear(state); | |
1484 | ret = drm_modeset_backoff(&ctx); | |
1485 | if (!ret) | |
1486 | goto retry; | |
1487 | } | |
1488 | ||
1489 | drm_atomic_state_put(state); | |
1490 | ||
1491 | drm_modeset_drop_locks(&ctx); | |
1492 | drm_modeset_acquire_fini(&ctx); | |
1493 | ||
1494 | return ret; | |
1495 | } |