Commit | Line | Data |
---|---|---|
f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
6d6003c4 | 36 | #include <linux/dma-fence.h> |
e6120d64 | 37 | #include <linux/uaccess.h> |
760285e7 DH |
38 | #include <drm/drm_crtc.h> |
39 | #include <drm/drm_edid.h> | |
40 | #include <drm/drm_fourcc.h> | |
51fd371b | 41 | #include <drm/drm_modeset_lock.h> |
88a48e29 | 42 | #include <drm/drm_atomic.h> |
3b96a0b1 | 43 | #include <drm/drm_auth.h> |
9edbf1fa | 44 | #include <drm/drm_debugfs_crc.h> |
e6120d64 DV |
45 | #include <drm/drm_drv.h> |
46 | #include <drm/drm_print.h> | |
47 | #include <drm/drm_file.h> | |
f453ba04 | 48 | |
8bd441b2 | 49 | #include "drm_crtc_internal.h" |
67d0ec4e | 50 | #include "drm_internal.h" |
8bd441b2 | 51 | |
d5d487eb DV |
52 | /** |
53 | * DOC: overview | |
54 | * | |
55 | * A CRTC represents the overall display pipeline. It receives pixel data from | |
56 | * &drm_plane and blends them together. The &drm_display_mode is also attached | |
57 | * to the CRTC, specifying display timings. On the output side the data is fed | |
58 | * to one or more &drm_encoder, which are then each connected to one | |
59 | * &drm_connector. | |
60 | * | |
61 | * To create a CRTC, a KMS drivers allocates and zeroes an instances of | |
62 | * &struct drm_crtc (possibly as part of a larger structure) and registers it | |
63 | * with a call to drm_crtc_init_with_planes(). | |
64 | * | |
65 | * The CRTC is also the entry point for legacy modeset operations, see | |
66 | * &drm_crtc_funcs.set_config, legacy plane operations, see | |
67 | * &drm_crtc_funcs.page_flip and &drm_crtc_funcs.cursor_set2, and other legacy | |
68 | * operations like &drm_crtc_funcs.gamma_set. For atomic drivers all these | |
69 | * features are controlled through &drm_property and | |
70 | * &drm_mode_config_funcs.atomic_check and &drm_mode_config_funcs.atomic_check. | |
71 | */ | |
72 | ||
6d1b81d8 SG |
73 | /** |
74 | * drm_crtc_from_index - find the registered CRTC at an index | |
75 | * @dev: DRM device | |
76 | * @idx: index of registered CRTC to find for | |
77 | * | |
78 | * Given a CRTC index, return the registered CRTC from DRM device's | |
931c670d SG |
79 | * list of CRTCs with matching index. This is the inverse of drm_crtc_index(). |
80 | * It's useful in the vblank callbacks (like &drm_driver.enable_vblank or | |
81 | * &drm_driver.disable_vblank), since that still deals with indices instead | |
82 | * of pointers to &struct drm_crtc." | |
6d1b81d8 SG |
83 | */ |
84 | struct drm_crtc *drm_crtc_from_index(struct drm_device *dev, int idx) | |
85 | { | |
86 | struct drm_crtc *crtc; | |
87 | ||
88 | drm_for_each_crtc(crtc, dev) | |
89 | if (idx == crtc->index) | |
90 | return crtc; | |
91 | ||
92 | return NULL; | |
93 | } | |
94 | EXPORT_SYMBOL(drm_crtc_from_index); | |
95 | ||
6a0d9528 LW |
96 | int drm_crtc_force_disable(struct drm_crtc *crtc) |
97 | { | |
98 | struct drm_mode_set set = { | |
99 | .crtc = crtc, | |
100 | }; | |
101 | ||
18dddadc DV |
102 | WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev)); |
103 | ||
6a0d9528 LW |
104 | return drm_mode_set_config_internal(&set); |
105 | } | |
6a0d9528 | 106 | |
fa3ab4c2 VS |
107 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
108 | { | |
109 | unsigned int num = 0; | |
110 | struct drm_crtc *tmp; | |
111 | ||
112 | drm_for_each_crtc(tmp, dev) { | |
113 | num++; | |
114 | } | |
115 | ||
116 | return num; | |
117 | } | |
118 | ||
28575f16 | 119 | int drm_crtc_register_all(struct drm_device *dev) |
79190ea2 BG |
120 | { |
121 | struct drm_crtc *crtc; | |
122 | int ret = 0; | |
123 | ||
124 | drm_for_each_crtc(crtc, dev) { | |
b792e640 | 125 | drm_debugfs_crtc_add(crtc); |
9edbf1fa | 126 | |
79190ea2 BG |
127 | if (crtc->funcs->late_register) |
128 | ret = crtc->funcs->late_register(crtc); | |
129 | if (ret) | |
130 | return ret; | |
131 | } | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
28575f16 | 136 | void drm_crtc_unregister_all(struct drm_device *dev) |
79190ea2 BG |
137 | { |
138 | struct drm_crtc *crtc; | |
139 | ||
140 | drm_for_each_crtc(crtc, dev) { | |
141 | if (crtc->funcs->early_unregister) | |
142 | crtc->funcs->early_unregister(crtc); | |
9edbf1fa | 143 | drm_debugfs_crtc_remove(crtc); |
79190ea2 BG |
144 | } |
145 | } | |
146 | ||
9edbf1fa TV |
147 | static int drm_crtc_crc_init(struct drm_crtc *crtc) |
148 | { | |
149 | #ifdef CONFIG_DEBUG_FS | |
150 | spin_lock_init(&crtc->crc.lock); | |
151 | init_waitqueue_head(&crtc->crc.wq); | |
152 | crtc->crc.source = kstrdup("auto", GFP_KERNEL); | |
153 | if (!crtc->crc.source) | |
154 | return -ENOMEM; | |
155 | #endif | |
156 | return 0; | |
157 | } | |
158 | ||
159 | static void drm_crtc_crc_fini(struct drm_crtc *crtc) | |
160 | { | |
161 | #ifdef CONFIG_DEBUG_FS | |
162 | kfree(crtc->crc.source); | |
163 | #endif | |
164 | } | |
165 | ||
35f8cc3b GP |
166 | static const struct dma_fence_ops drm_crtc_fence_ops; |
167 | ||
6d6003c4 GP |
168 | static struct drm_crtc *fence_to_crtc(struct dma_fence *fence) |
169 | { | |
170 | BUG_ON(fence->ops != &drm_crtc_fence_ops); | |
171 | return container_of(fence->lock, struct drm_crtc, fence_lock); | |
172 | } | |
173 | ||
174 | static const char *drm_crtc_fence_get_driver_name(struct dma_fence *fence) | |
175 | { | |
176 | struct drm_crtc *crtc = fence_to_crtc(fence); | |
177 | ||
178 | return crtc->dev->driver->name; | |
179 | } | |
180 | ||
181 | static const char *drm_crtc_fence_get_timeline_name(struct dma_fence *fence) | |
182 | { | |
183 | struct drm_crtc *crtc = fence_to_crtc(fence); | |
184 | ||
185 | return crtc->timeline_name; | |
186 | } | |
187 | ||
35f8cc3b | 188 | static const struct dma_fence_ops drm_crtc_fence_ops = { |
6d6003c4 GP |
189 | .get_driver_name = drm_crtc_fence_get_driver_name, |
190 | .get_timeline_name = drm_crtc_fence_get_timeline_name, | |
6d6003c4 GP |
191 | }; |
192 | ||
35f8cc3b GP |
193 | struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc) |
194 | { | |
195 | struct dma_fence *fence; | |
196 | ||
197 | fence = kzalloc(sizeof(*fence), GFP_KERNEL); | |
198 | if (!fence) | |
199 | return NULL; | |
200 | ||
201 | dma_fence_init(fence, &drm_crtc_fence_ops, &crtc->fence_lock, | |
202 | crtc->fence_context, ++crtc->fence_seqno); | |
203 | ||
204 | return fence; | |
205 | } | |
206 | ||
f453ba04 | 207 | /** |
e13161af MR |
208 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
209 | * specified primary and cursor planes. | |
f453ba04 DA |
210 | * @dev: DRM device |
211 | * @crtc: CRTC object to init | |
e13161af MR |
212 | * @primary: Primary plane for CRTC |
213 | * @cursor: Cursor plane for CRTC | |
f453ba04 | 214 | * @funcs: callbacks for the new CRTC |
f9882876 | 215 | * @name: printf style format string for the CRTC name, or NULL for default name |
f453ba04 | 216 | * |
532b3671 DV |
217 | * Inits a new object created as base part of a driver crtc object. Drivers |
218 | * should use this function instead of drm_crtc_init(), which is only provided | |
219 | * for backwards compatibility with drivers which do not yet support universal | |
220 | * planes). For really simple hardware which has only 1 plane look at | |
221 | * drm_simple_display_pipe_init() instead. | |
6bfc56aa | 222 | * |
c8e32cc1 | 223 | * Returns: |
6bfc56aa | 224 | * Zero on success, error code on failure. |
f453ba04 | 225 | */ |
e13161af MR |
226 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
227 | struct drm_plane *primary, | |
fc1d3e44 | 228 | struct drm_plane *cursor, |
f9882876 VS |
229 | const struct drm_crtc_funcs *funcs, |
230 | const char *name, ...) | |
f453ba04 | 231 | { |
51fd371b | 232 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
233 | int ret; |
234 | ||
522cf91f BG |
235 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
236 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
237 | ||
2a8d3eac VS |
238 | /* crtc index is used with 32bit bitmasks */ |
239 | if (WARN_ON(config->num_crtc >= 32)) | |
240 | return -EINVAL; | |
241 | ||
ba1f665f HM |
242 | WARN_ON(drm_drv_uses_atomic_modeset(dev) && |
243 | (!funcs->atomic_destroy_state || | |
244 | !funcs->atomic_duplicate_state)); | |
245 | ||
f453ba04 DA |
246 | crtc->dev = dev; |
247 | crtc->funcs = funcs; | |
248 | ||
3b24f7d6 DV |
249 | INIT_LIST_HEAD(&crtc->commit_list); |
250 | spin_lock_init(&crtc->commit_lock); | |
251 | ||
51fd371b | 252 | drm_modeset_lock_init(&crtc->mutex); |
2135ea7a | 253 | ret = drm_mode_object_add(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
6bfc56aa | 254 | if (ret) |
baf698b0 | 255 | return ret; |
f453ba04 | 256 | |
fa3ab4c2 VS |
257 | if (name) { |
258 | va_list ap; | |
259 | ||
260 | va_start(ap, name); | |
261 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | |
262 | va_end(ap); | |
263 | } else { | |
264 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", | |
265 | drm_num_crtcs(dev)); | |
266 | } | |
267 | if (!crtc->name) { | |
7c8f6d25 | 268 | drm_mode_object_unregister(dev, &crtc->base); |
fa3ab4c2 VS |
269 | return -ENOMEM; |
270 | } | |
271 | ||
6d6003c4 GP |
272 | crtc->fence_context = dma_fence_context_alloc(1); |
273 | spin_lock_init(&crtc->fence_lock); | |
274 | snprintf(crtc->timeline_name, sizeof(crtc->timeline_name), | |
275 | "CRTC:%d-%s", crtc->base.id, crtc->name); | |
276 | ||
bffd9de0 PZ |
277 | crtc->base.properties = &crtc->properties; |
278 | ||
51fd371b | 279 | list_add_tail(&crtc->head, &config->crtc_list); |
490d3d1b | 280 | crtc->index = config->num_crtc++; |
6bfc56aa | 281 | |
e13161af | 282 | crtc->primary = primary; |
fc1d3e44 | 283 | crtc->cursor = cursor; |
7abc7d47 | 284 | if (primary && !primary->possible_crtcs) |
6a52193b | 285 | primary->possible_crtcs = drm_crtc_mask(crtc); |
7abc7d47 | 286 | if (cursor && !cursor->possible_crtcs) |
6a52193b | 287 | cursor->possible_crtcs = drm_crtc_mask(crtc); |
e13161af | 288 | |
9edbf1fa TV |
289 | ret = drm_crtc_crc_init(crtc); |
290 | if (ret) { | |
291 | drm_mode_object_unregister(dev, &crtc->base); | |
292 | return ret; | |
293 | } | |
294 | ||
eab3bbef DV |
295 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
296 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 297 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
beaf5af4 GP |
298 | drm_object_attach_property(&crtc->base, |
299 | config->prop_out_fence_ptr, 0); | |
1398958c NK |
300 | drm_object_attach_property(&crtc->base, |
301 | config->prop_vrr_enabled, 0); | |
eab3bbef DV |
302 | } |
303 | ||
baf698b0 | 304 | return 0; |
f453ba04 | 305 | } |
e13161af | 306 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
307 | |
308 | /** | |
ad6f5c34 | 309 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
310 | * @crtc: CRTC to cleanup |
311 | * | |
ad6f5c34 VS |
312 | * This function cleans up @crtc and removes it from the DRM mode setting |
313 | * core. Note that the function does *not* free the crtc structure itself, | |
314 | * this is the responsibility of the caller. | |
f453ba04 DA |
315 | */ |
316 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
317 | { | |
318 | struct drm_device *dev = crtc->dev; | |
319 | ||
490d3d1b CW |
320 | /* Note that the crtc_list is considered to be static; should we |
321 | * remove the drm_crtc at runtime we would have to decrement all | |
322 | * the indices on the drm_crtc after us in the crtc_list. | |
323 | */ | |
324 | ||
9edbf1fa TV |
325 | drm_crtc_crc_fini(crtc); |
326 | ||
9e1c156f SK |
327 | kfree(crtc->gamma_store); |
328 | crtc->gamma_store = NULL; | |
f453ba04 | 329 | |
51fd371b RC |
330 | drm_modeset_lock_fini(&crtc->mutex); |
331 | ||
7c8f6d25 | 332 | drm_mode_object_unregister(dev, &crtc->base); |
f453ba04 DA |
333 | list_del(&crtc->head); |
334 | dev->mode_config.num_crtc--; | |
3009c037 TR |
335 | |
336 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
337 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
338 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 | 339 | |
fa3ab4c2 VS |
340 | kfree(crtc->name); |
341 | ||
a18c0af1 | 342 | memset(crtc, 0, sizeof(*crtc)); |
f453ba04 DA |
343 | } |
344 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
345 | ||
f453ba04 DA |
346 | /** |
347 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
348 | * @dev: drm device for the ioctl |
349 | * @data: data pointer for the ioctl | |
350 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 351 | * |
f453ba04 DA |
352 | * Construct a CRTC configuration structure to return to the user. |
353 | * | |
354 | * Called by the user via ioctl. | |
355 | * | |
c8e32cc1 | 356 | * Returns: |
1a498633 | 357 | * Zero on success, negative errno on failure. |
f453ba04 DA |
358 | */ |
359 | int drm_mode_getcrtc(struct drm_device *dev, | |
360 | void *data, struct drm_file *file_priv) | |
361 | { | |
362 | struct drm_mode_crtc *crtc_resp = data; | |
363 | struct drm_crtc *crtc; | |
64c32b49 | 364 | struct drm_plane *plane; |
f453ba04 | 365 | |
fb3b06c8 | 366 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
69fdf420 | 367 | return -EOPNOTSUPP; |
fb3b06c8 | 368 | |
418da172 | 369 | crtc = drm_crtc_find(dev, file_priv, crtc_resp->crtc_id); |
fcf93f69 DV |
370 | if (!crtc) |
371 | return -ENOENT; | |
f453ba04 | 372 | |
64c32b49 VS |
373 | plane = crtc->primary; |
374 | ||
f453ba04 | 375 | crtc_resp->gamma_size = crtc->gamma_size; |
de7b6be7 | 376 | |
64c32b49 VS |
377 | drm_modeset_lock(&plane->mutex, NULL); |
378 | if (plane->state && plane->state->fb) | |
379 | crtc_resp->fb_id = plane->state->fb->base.id; | |
380 | else if (!plane->state && plane->fb) | |
381 | crtc_resp->fb_id = plane->fb->base.id; | |
f453ba04 DA |
382 | else |
383 | crtc_resp->fb_id = 0; | |
384 | ||
64c32b49 VS |
385 | if (plane->state) { |
386 | crtc_resp->x = plane->state->src_x >> 16; | |
387 | crtc_resp->y = plane->state->src_y >> 16; | |
2c77bb29 | 388 | } |
64c32b49 | 389 | drm_modeset_unlock(&plane->mutex); |
2c77bb29 DV |
390 | |
391 | drm_modeset_lock(&crtc->mutex, NULL); | |
392 | if (crtc->state) { | |
31c946e8 | 393 | if (crtc->state->enable) { |
934a8a89 | 394 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 395 | crtc_resp->mode_valid = 1; |
31c946e8 DV |
396 | } else { |
397 | crtc_resp->mode_valid = 0; | |
398 | } | |
f453ba04 | 399 | } else { |
31c946e8 DV |
400 | crtc_resp->x = crtc->x; |
401 | crtc_resp->y = crtc->y; | |
bf2d5eb9 | 402 | |
31c946e8 | 403 | if (crtc->enabled) { |
934a8a89 | 404 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
405 | crtc_resp->mode_valid = 1; |
406 | ||
407 | } else { | |
408 | crtc_resp->mode_valid = 0; | |
409 | } | |
f453ba04 | 410 | } |
ace5bf0e AN |
411 | if (!file_priv->aspect_ratio_allowed) |
412 | crtc_resp->mode.flags &= ~DRM_MODE_FLAG_PIC_AR_MASK; | |
2c77bb29 | 413 | drm_modeset_unlock(&crtc->mutex); |
f453ba04 | 414 | |
baf698b0 | 415 | return 0; |
f453ba04 DA |
416 | } |
417 | ||
2ceb585a DV |
418 | static int __drm_mode_set_config_internal(struct drm_mode_set *set, |
419 | struct drm_modeset_acquire_ctx *ctx) | |
2d13b679 DV |
420 | { |
421 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
422 | struct drm_framebuffer *fb; |
423 | struct drm_crtc *tmp; | |
b0d12325 DV |
424 | int ret; |
425 | ||
69a8a196 VS |
426 | WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev)); |
427 | ||
5cef29aa DV |
428 | /* |
429 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
430 | * connectors from it), hence we need to refcount the fbs across all | |
431 | * crtcs. Atomic modeset will have saner semantics ... | |
432 | */ | |
3ed70ecd VS |
433 | drm_for_each_crtc(tmp, crtc->dev) { |
434 | struct drm_plane *plane = tmp->primary; | |
435 | ||
436 | plane->old_fb = plane->fb; | |
437 | } | |
5cef29aa | 438 | |
b0d12325 | 439 | fb = set->fb; |
2d13b679 | 440 | |
a4eff9aa | 441 | ret = crtc->funcs->set_config(set, ctx); |
b0d12325 | 442 | if (ret == 0) { |
e00fb856 VS |
443 | struct drm_plane *plane = crtc->primary; |
444 | ||
69a8a196 VS |
445 | plane->crtc = fb ? crtc : NULL; |
446 | plane->fb = fb; | |
5cef29aa | 447 | } |
cc85e121 | 448 | |
e4f62546 | 449 | drm_for_each_crtc(tmp, crtc->dev) { |
3ed70ecd VS |
450 | struct drm_plane *plane = tmp->primary; |
451 | ||
452 | if (plane->fb) | |
453 | drm_framebuffer_get(plane->fb); | |
454 | if (plane->old_fb) | |
455 | drm_framebuffer_put(plane->old_fb); | |
456 | plane->old_fb = NULL; | |
b0d12325 DV |
457 | } |
458 | ||
459 | return ret; | |
2d13b679 | 460 | } |
69a8a196 | 461 | |
d49473a5 DV |
462 | /** |
463 | * drm_mode_set_config_internal - helper to call &drm_mode_config_funcs.set_config | |
464 | * @set: modeset config to set | |
465 | * | |
466 | * This is a little helper to wrap internal calls to the | |
467 | * &drm_mode_config_funcs.set_config driver interface. The only thing it adds is | |
468 | * correct refcounting dance. | |
469 | * | |
470 | * This should only be used by non-atomic legacy drivers. | |
471 | * | |
472 | * Returns: | |
473 | * Zero on success, negative errno on failure. | |
474 | */ | |
475 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
476 | { | |
477 | WARN_ON(drm_drv_uses_atomic_modeset(set->crtc->dev)); | |
478 | ||
2ceb585a | 479 | return __drm_mode_set_config_internal(set, NULL); |
d49473a5 | 480 | } |
2d13b679 DV |
481 | EXPORT_SYMBOL(drm_mode_set_config_internal); |
482 | ||
af93629d MR |
483 | /** |
484 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
485 | * CRTC viewport | |
486 | * @crtc: CRTC that framebuffer will be displayed on | |
487 | * @x: x panning | |
488 | * @y: y panning | |
489 | * @mode: mode that framebuffer will be displayed under | |
490 | * @fb: framebuffer to check size of | |
c11e9283 | 491 | */ |
af93629d MR |
492 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
493 | int x, int y, | |
494 | const struct drm_display_mode *mode, | |
495 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
496 | |
497 | { | |
498 | int hdisplay, vdisplay; | |
499 | ||
196cd5d3 | 500 | drm_mode_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 501 | |
33e0be63 | 502 | if (crtc->state && |
bd2ef25d | 503 | drm_rotation_90_or_270(crtc->primary->state->rotation)) |
c11e9283 DL |
504 | swap(hdisplay, vdisplay); |
505 | ||
43968d7b DV |
506 | return drm_framebuffer_check_src_coords(x << 16, y << 16, |
507 | hdisplay << 16, vdisplay << 16, | |
508 | fb); | |
c11e9283 | 509 | } |
af93629d | 510 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 511 | |
f453ba04 DA |
512 | /** |
513 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
514 | * @dev: drm device for the ioctl |
515 | * @data: data pointer for the ioctl | |
516 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 517 | * |
f453ba04 DA |
518 | * Build a new CRTC configuration based on user request. |
519 | * | |
520 | * Called by the user via ioctl. | |
521 | * | |
c8e32cc1 | 522 | * Returns: |
1a498633 | 523 | * Zero on success, negative errno on failure. |
f453ba04 DA |
524 | */ |
525 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
526 | struct drm_file *file_priv) | |
527 | { | |
528 | struct drm_mode_config *config = &dev->mode_config; | |
529 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 530 | struct drm_crtc *crtc; |
64c32b49 | 531 | struct drm_plane *plane; |
c232e9f4 SP |
532 | struct drm_connector **connector_set = NULL, *connector; |
533 | struct drm_framebuffer *fb = NULL; | |
534 | struct drm_display_mode *mode = NULL; | |
f453ba04 DA |
535 | struct drm_mode_set set; |
536 | uint32_t __user *set_connectors_ptr; | |
2ceb585a | 537 | struct drm_modeset_acquire_ctx ctx; |
4a1b0714 | 538 | int ret; |
f453ba04 DA |
539 | int i; |
540 | ||
fb3b06c8 | 541 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
69fdf420 | 542 | return -EOPNOTSUPP; |
fb3b06c8 | 543 | |
01447e9f ZJ |
544 | /* |
545 | * Universal plane src offsets are only 16.16, prevent havoc for | |
546 | * drivers using universal plane code internally. | |
547 | */ | |
548 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
549 | return -ERANGE; |
550 | ||
418da172 | 551 | crtc = drm_crtc_find(dev, file_priv, crtc_req->crtc_id); |
a2b34e22 | 552 | if (!crtc) { |
58367ed6 | 553 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
2ceb585a | 554 | return -ENOENT; |
f453ba04 | 555 | } |
fa3ab4c2 | 556 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 | 557 | |
64c32b49 VS |
558 | plane = crtc->primary; |
559 | ||
204f640d DV |
560 | /* allow disabling with the primary plane leased */ |
561 | if (crtc_req->mode_valid && !drm_lease_held(file_priv, plane->base.id)) | |
562 | return -EACCES; | |
563 | ||
53552d5d | 564 | mutex_lock(&crtc->dev->mode_config.mutex); |
b7ea04d2 SP |
565 | DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, |
566 | DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret); | |
bf2d5eb9 | 567 | |
f453ba04 DA |
568 | if (crtc_req->mode_valid) { |
569 | /* If we have a mode we need a framebuffer. */ | |
570 | /* If we pass -1, set the mode with the currently bound fb */ | |
571 | if (crtc_req->fb_id == -1) { | |
a36c027d VS |
572 | struct drm_framebuffer *old_fb; |
573 | ||
574 | if (plane->state) | |
575 | old_fb = plane->state->fb; | |
576 | else | |
577 | old_fb = plane->fb; | |
578 | ||
579 | if (!old_fb) { | |
6653cc8d VS |
580 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
581 | ret = -EINVAL; | |
582 | goto out; | |
f453ba04 | 583 | } |
bf2d5eb9 | 584 | |
a36c027d | 585 | fb = old_fb; |
b0d12325 | 586 | /* Make refcounting symmetric with the lookup path. */ |
a4a69da0 | 587 | drm_framebuffer_get(fb); |
f453ba04 | 588 | } else { |
418da172 | 589 | fb = drm_framebuffer_lookup(dev, file_priv, crtc_req->fb_id); |
786b99ed | 590 | if (!fb) { |
58367ed6 ZY |
591 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
592 | crtc_req->fb_id); | |
37c4e705 | 593 | ret = -ENOENT; |
f453ba04 DA |
594 | goto out; |
595 | } | |
f453ba04 DA |
596 | } |
597 | ||
598 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
599 | if (!mode) { |
600 | ret = -ENOMEM; | |
601 | goto out; | |
602 | } | |
ace5bf0e AN |
603 | if (!file_priv->aspect_ratio_allowed && |
604 | (crtc_req->mode.flags & DRM_MODE_FLAG_PIC_AR_MASK) != DRM_MODE_FLAG_PIC_AR_NONE) { | |
605 | DRM_DEBUG_KMS("Unexpected aspect-ratio flag bits\n"); | |
606 | ret = -EINVAL; | |
607 | goto out; | |
608 | } | |
609 | ||
ee34ab5b | 610 | |
75a655e0 | 611 | ret = drm_mode_convert_umode(dev, mode, &crtc_req->mode); |
90367bf6 | 612 | if (ret) { |
6ab0edf4 VS |
613 | DRM_DEBUG_KMS("Invalid mode (ret=%d, status=%s)\n", |
614 | ret, drm_get_mode_status_name(mode->status)); | |
615 | drm_mode_debug_printmodeline(mode); | |
90367bf6 VS |
616 | goto out; |
617 | } | |
618 | ||
7eb5f302 LP |
619 | /* |
620 | * Check whether the primary plane supports the fb pixel format. | |
621 | * Drivers not implementing the universal planes API use a | |
622 | * default formats list provided by the DRM core which doesn't | |
623 | * match real hardware capabilities. Skip the check in that | |
624 | * case. | |
625 | */ | |
64c32b49 VS |
626 | if (!plane->format_default) { |
627 | ret = drm_plane_check_pixel_format(plane, | |
23163a7d VS |
628 | fb->format->format, |
629 | fb->modifier); | |
7eb5f302 | 630 | if (ret) { |
b3c11ac2 | 631 | struct drm_format_name_buf format_name; |
23163a7d VS |
632 | DRM_DEBUG_KMS("Invalid pixel format %s, modifier 0x%llx\n", |
633 | drm_get_format_name(fb->format->format, | |
634 | &format_name), | |
635 | fb->modifier); | |
7eb5f302 LP |
636 | goto out; |
637 | } | |
638 | } | |
639 | ||
c11e9283 DL |
640 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
641 | mode, fb); | |
642 | if (ret) | |
5f61bb42 | 643 | goto out; |
c11e9283 | 644 | |
f453ba04 DA |
645 | } |
646 | ||
647 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 648 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
649 | ret = -EINVAL; |
650 | goto out; | |
651 | } | |
652 | ||
7781de74 | 653 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 654 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
655 | crtc_req->count_connectors); |
656 | ret = -EINVAL; | |
657 | goto out; | |
658 | } | |
659 | ||
660 | if (crtc_req->count_connectors > 0) { | |
661 | u32 out_id; | |
662 | ||
663 | /* Avoid unbounded kernel memory allocation */ | |
664 | if (crtc_req->count_connectors > config->num_connector) { | |
665 | ret = -EINVAL; | |
666 | goto out; | |
667 | } | |
668 | ||
2f6c5389 TR |
669 | connector_set = kmalloc_array(crtc_req->count_connectors, |
670 | sizeof(struct drm_connector *), | |
671 | GFP_KERNEL); | |
f453ba04 DA |
672 | if (!connector_set) { |
673 | ret = -ENOMEM; | |
674 | goto out; | |
675 | } | |
676 | ||
677 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 678 | connector_set[i] = NULL; |
81f6c7f8 | 679 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
680 | if (get_user(out_id, &set_connectors_ptr[i])) { |
681 | ret = -EFAULT; | |
682 | goto out; | |
683 | } | |
684 | ||
418da172 | 685 | connector = drm_connector_lookup(dev, file_priv, out_id); |
a2b34e22 | 686 | if (!connector) { |
58367ed6 ZY |
687 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
688 | out_id); | |
f27657f2 | 689 | ret = -ENOENT; |
f453ba04 DA |
690 | goto out; |
691 | } | |
9440106b JG |
692 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
693 | connector->base.id, | |
25933820 | 694 | connector->name); |
f453ba04 DA |
695 | |
696 | connector_set[i] = connector; | |
697 | } | |
698 | } | |
699 | ||
700 | set.crtc = crtc; | |
701 | set.x = crtc_req->x; | |
702 | set.y = crtc_req->y; | |
703 | set.mode = mode; | |
704 | set.connectors = connector_set; | |
705 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 706 | set.fb = fb; |
69a8a196 VS |
707 | |
708 | if (drm_drv_uses_atomic_modeset(dev)) | |
709 | ret = crtc->funcs->set_config(&set, &ctx); | |
710 | else | |
711 | ret = __drm_mode_set_config_internal(&set, &ctx); | |
f453ba04 DA |
712 | |
713 | out: | |
b0d12325 | 714 | if (fb) |
a4a69da0 | 715 | drm_framebuffer_put(fb); |
b0d12325 | 716 | |
b164d31f DA |
717 | if (connector_set) { |
718 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
719 | if (connector_set[i]) | |
ad093607 | 720 | drm_connector_put(connector_set[i]); |
b164d31f DA |
721 | } |
722 | } | |
f453ba04 | 723 | kfree(connector_set); |
ee34ab5b | 724 | drm_mode_destroy(dev, mode); |
c232e9f4 SP |
725 | |
726 | /* In case we need to retry... */ | |
727 | connector_set = NULL; | |
728 | fb = NULL; | |
729 | mode = NULL; | |
730 | ||
b7ea04d2 | 731 | DRM_MODESET_LOCK_ALL_END(ctx, ret); |
53552d5d | 732 | mutex_unlock(&crtc->dev->mode_config.mutex); |
2ceb585a | 733 | |
f453ba04 DA |
734 | return ret; |
735 | } | |
736 | ||
949619f3 DV |
737 | int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
738 | struct drm_property *property, | |
739 | uint64_t value) | |
4a67d391 | 740 | { |
bffd9de0 PZ |
741 | int ret = -EINVAL; |
742 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4a67d391 | 743 | |
bffd9de0 PZ |
744 | if (crtc->funcs->set_property) |
745 | ret = crtc->funcs->set_property(crtc, property, value); | |
144a7999 | 746 | if (!ret) |
bffd9de0 | 747 | drm_object_property_set_value(obj, property, value); |
4a67d391 | 748 | |
bffd9de0 | 749 | return ret; |
4a67d391 | 750 | } |