Commit | Line | Data |
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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> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
51fd371b | 40 | #include <drm/drm_modeset_lock.h> |
88a48e29 | 41 | #include <drm/drm_atomic.h> |
3b96a0b1 | 42 | #include <drm/drm_auth.h> |
7520a277 | 43 | #include <drm/drm_framebuffer.h> |
f453ba04 | 44 | |
8bd441b2 | 45 | #include "drm_crtc_internal.h" |
67d0ec4e | 46 | #include "drm_internal.h" |
8bd441b2 | 47 | |
f453ba04 DA |
48 | /* |
49 | * Global properties | |
50 | */ | |
4dfd909f | 51 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
52 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
53 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
54 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
55 | }; | |
56 | ||
52217195 DV |
57 | /* |
58 | * Optional properties | |
ac1bb36c | 59 | */ |
6a0d9528 LW |
60 | /** |
61 | * drm_crtc_force_disable - Forcibly turn off a CRTC | |
62 | * @crtc: CRTC to turn off | |
63 | * | |
64 | * Returns: | |
65 | * Zero on success, error code on failure. | |
66 | */ | |
67 | int drm_crtc_force_disable(struct drm_crtc *crtc) | |
68 | { | |
69 | struct drm_mode_set set = { | |
70 | .crtc = crtc, | |
71 | }; | |
72 | ||
73 | return drm_mode_set_config_internal(&set); | |
74 | } | |
75 | EXPORT_SYMBOL(drm_crtc_force_disable); | |
76 | ||
77 | /** | |
78 | * drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs | |
79 | * @dev: DRM device whose CRTCs to turn off | |
80 | * | |
81 | * Drivers may want to call this on unload to ensure that all displays are | |
82 | * unlit and the GPU is in a consistent, low power state. Takes modeset locks. | |
83 | * | |
84 | * Returns: | |
85 | * Zero on success, error code on failure. | |
86 | */ | |
87 | int drm_crtc_force_disable_all(struct drm_device *dev) | |
88 | { | |
89 | struct drm_crtc *crtc; | |
90 | int ret = 0; | |
91 | ||
92 | drm_modeset_lock_all(dev); | |
93 | drm_for_each_crtc(crtc, dev) | |
94 | if (crtc->enabled) { | |
95 | ret = drm_crtc_force_disable(crtc); | |
96 | if (ret) | |
97 | goto out; | |
98 | } | |
99 | out: | |
100 | drm_modeset_unlock_all(dev); | |
101 | return ret; | |
102 | } | |
103 | EXPORT_SYMBOL(drm_crtc_force_disable_all); | |
104 | ||
51fd371b RC |
105 | DEFINE_WW_CLASS(crtc_ww_class); |
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 | ||
79190ea2 BG |
119 | static int drm_crtc_register_all(struct drm_device *dev) |
120 | { | |
121 | struct drm_crtc *crtc; | |
122 | int ret = 0; | |
123 | ||
124 | drm_for_each_crtc(crtc, dev) { | |
125 | if (crtc->funcs->late_register) | |
126 | ret = crtc->funcs->late_register(crtc); | |
127 | if (ret) | |
128 | return ret; | |
129 | } | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | static void drm_crtc_unregister_all(struct drm_device *dev) | |
135 | { | |
136 | struct drm_crtc *crtc; | |
137 | ||
138 | drm_for_each_crtc(crtc, dev) { | |
139 | if (crtc->funcs->early_unregister) | |
140 | crtc->funcs->early_unregister(crtc); | |
141 | } | |
142 | } | |
143 | ||
f453ba04 | 144 | /** |
e13161af MR |
145 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
146 | * specified primary and cursor planes. | |
f453ba04 DA |
147 | * @dev: DRM device |
148 | * @crtc: CRTC object to init | |
e13161af MR |
149 | * @primary: Primary plane for CRTC |
150 | * @cursor: Cursor plane for CRTC | |
f453ba04 | 151 | * @funcs: callbacks for the new CRTC |
f9882876 | 152 | * @name: printf style format string for the CRTC name, or NULL for default name |
f453ba04 | 153 | * |
ad6f5c34 | 154 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 155 | * |
c8e32cc1 | 156 | * Returns: |
6bfc56aa | 157 | * Zero on success, error code on failure. |
f453ba04 | 158 | */ |
e13161af MR |
159 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
160 | struct drm_plane *primary, | |
fc1d3e44 | 161 | struct drm_plane *cursor, |
f9882876 VS |
162 | const struct drm_crtc_funcs *funcs, |
163 | const char *name, ...) | |
f453ba04 | 164 | { |
51fd371b | 165 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
166 | int ret; |
167 | ||
522cf91f BG |
168 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
169 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
170 | ||
f453ba04 DA |
171 | crtc->dev = dev; |
172 | crtc->funcs = funcs; | |
173 | ||
3b24f7d6 DV |
174 | INIT_LIST_HEAD(&crtc->commit_list); |
175 | spin_lock_init(&crtc->commit_lock); | |
176 | ||
51fd371b | 177 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
178 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
179 | if (ret) | |
baf698b0 | 180 | return ret; |
f453ba04 | 181 | |
fa3ab4c2 VS |
182 | if (name) { |
183 | va_list ap; | |
184 | ||
185 | va_start(ap, name); | |
186 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | |
187 | va_end(ap); | |
188 | } else { | |
189 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", | |
190 | drm_num_crtcs(dev)); | |
191 | } | |
192 | if (!crtc->name) { | |
7c8f6d25 | 193 | drm_mode_object_unregister(dev, &crtc->base); |
fa3ab4c2 VS |
194 | return -ENOMEM; |
195 | } | |
196 | ||
bffd9de0 PZ |
197 | crtc->base.properties = &crtc->properties; |
198 | ||
51fd371b | 199 | list_add_tail(&crtc->head, &config->crtc_list); |
490d3d1b | 200 | crtc->index = config->num_crtc++; |
6bfc56aa | 201 | |
e13161af | 202 | crtc->primary = primary; |
fc1d3e44 | 203 | crtc->cursor = cursor; |
e13161af MR |
204 | if (primary) |
205 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
206 | if (cursor) |
207 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 208 | |
eab3bbef DV |
209 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
210 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 211 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
eab3bbef DV |
212 | } |
213 | ||
baf698b0 | 214 | return 0; |
f453ba04 | 215 | } |
e13161af | 216 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
217 | |
218 | /** | |
ad6f5c34 | 219 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
220 | * @crtc: CRTC to cleanup |
221 | * | |
ad6f5c34 VS |
222 | * This function cleans up @crtc and removes it from the DRM mode setting |
223 | * core. Note that the function does *not* free the crtc structure itself, | |
224 | * this is the responsibility of the caller. | |
f453ba04 DA |
225 | */ |
226 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
227 | { | |
228 | struct drm_device *dev = crtc->dev; | |
229 | ||
490d3d1b CW |
230 | /* Note that the crtc_list is considered to be static; should we |
231 | * remove the drm_crtc at runtime we would have to decrement all | |
232 | * the indices on the drm_crtc after us in the crtc_list. | |
233 | */ | |
234 | ||
9e1c156f SK |
235 | kfree(crtc->gamma_store); |
236 | crtc->gamma_store = NULL; | |
f453ba04 | 237 | |
51fd371b RC |
238 | drm_modeset_lock_fini(&crtc->mutex); |
239 | ||
7c8f6d25 | 240 | drm_mode_object_unregister(dev, &crtc->base); |
f453ba04 DA |
241 | list_del(&crtc->head); |
242 | dev->mode_config.num_crtc--; | |
3009c037 TR |
243 | |
244 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
245 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
246 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 | 247 | |
fa3ab4c2 VS |
248 | kfree(crtc->name); |
249 | ||
a18c0af1 | 250 | memset(crtc, 0, sizeof(*crtc)); |
f453ba04 DA |
251 | } |
252 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
253 | ||
79190ea2 BG |
254 | int drm_modeset_register_all(struct drm_device *dev) |
255 | { | |
256 | int ret; | |
257 | ||
258 | ret = drm_plane_register_all(dev); | |
259 | if (ret) | |
260 | goto err_plane; | |
261 | ||
262 | ret = drm_crtc_register_all(dev); | |
263 | if (ret) | |
264 | goto err_crtc; | |
265 | ||
266 | ret = drm_encoder_register_all(dev); | |
267 | if (ret) | |
268 | goto err_encoder; | |
269 | ||
270 | ret = drm_connector_register_all(dev); | |
271 | if (ret) | |
272 | goto err_connector; | |
273 | ||
274 | return 0; | |
275 | ||
276 | err_connector: | |
277 | drm_encoder_unregister_all(dev); | |
278 | err_encoder: | |
279 | drm_crtc_unregister_all(dev); | |
280 | err_crtc: | |
281 | drm_plane_unregister_all(dev); | |
282 | err_plane: | |
283 | return ret; | |
284 | } | |
285 | ||
286 | void drm_modeset_unregister_all(struct drm_device *dev) | |
287 | { | |
288 | drm_connector_unregister_all(dev); | |
289 | drm_encoder_unregister_all(dev); | |
290 | drm_crtc_unregister_all(dev); | |
291 | drm_plane_unregister_all(dev); | |
292 | } | |
293 | ||
6b4959f4 | 294 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 295 | { |
356af0e1 | 296 | struct drm_property *prop; |
52217195 | 297 | int ret; |
f453ba04 | 298 | |
52217195 DV |
299 | ret = drm_connector_create_standard_properties(dev); |
300 | if (ret) | |
301 | return ret; | |
9922ab5a | 302 | |
6b4959f4 | 303 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
304 | "type", drm_plane_type_enum_list, |
305 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
306 | if (!prop) |
307 | return -ENOMEM; | |
308 | dev->mode_config.plane_type_property = prop; | |
309 | ||
310 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
311 | "SRC_X", 0, UINT_MAX); | |
312 | if (!prop) | |
313 | return -ENOMEM; | |
314 | dev->mode_config.prop_src_x = prop; | |
315 | ||
316 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
317 | "SRC_Y", 0, UINT_MAX); | |
318 | if (!prop) | |
319 | return -ENOMEM; | |
320 | dev->mode_config.prop_src_y = prop; | |
321 | ||
322 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
323 | "SRC_W", 0, UINT_MAX); | |
324 | if (!prop) | |
325 | return -ENOMEM; | |
326 | dev->mode_config.prop_src_w = prop; | |
327 | ||
328 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
329 | "SRC_H", 0, UINT_MAX); | |
330 | if (!prop) | |
331 | return -ENOMEM; | |
332 | dev->mode_config.prop_src_h = prop; | |
333 | ||
334 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
335 | "CRTC_X", INT_MIN, INT_MAX); | |
336 | if (!prop) | |
337 | return -ENOMEM; | |
338 | dev->mode_config.prop_crtc_x = prop; | |
339 | ||
340 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
341 | "CRTC_Y", INT_MIN, INT_MAX); | |
342 | if (!prop) | |
343 | return -ENOMEM; | |
344 | dev->mode_config.prop_crtc_y = prop; | |
345 | ||
346 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
347 | "CRTC_W", 0, INT_MAX); | |
348 | if (!prop) | |
349 | return -ENOMEM; | |
350 | dev->mode_config.prop_crtc_w = prop; | |
351 | ||
352 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
353 | "CRTC_H", 0, INT_MAX); | |
354 | if (!prop) | |
355 | return -ENOMEM; | |
356 | dev->mode_config.prop_crtc_h = prop; | |
357 | ||
358 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
359 | "FB_ID", DRM_MODE_OBJECT_FB); | |
360 | if (!prop) | |
361 | return -ENOMEM; | |
362 | dev->mode_config.prop_fb_id = prop; | |
363 | ||
364 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
365 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
366 | if (!prop) | |
367 | return -ENOMEM; | |
368 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 369 | |
eab3bbef DV |
370 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
371 | "ACTIVE"); | |
372 | if (!prop) | |
373 | return -ENOMEM; | |
374 | dev->mode_config.prop_active = prop; | |
375 | ||
955f3c33 DS |
376 | prop = drm_property_create(dev, |
377 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
378 | "MODE_ID", 0); | |
379 | if (!prop) | |
380 | return -ENOMEM; | |
381 | dev->mode_config.prop_mode_id = prop; | |
382 | ||
5488dc16 LL |
383 | prop = drm_property_create(dev, |
384 | DRM_MODE_PROP_BLOB, | |
385 | "DEGAMMA_LUT", 0); | |
386 | if (!prop) | |
387 | return -ENOMEM; | |
388 | dev->mode_config.degamma_lut_property = prop; | |
389 | ||
390 | prop = drm_property_create_range(dev, | |
391 | DRM_MODE_PROP_IMMUTABLE, | |
392 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
393 | if (!prop) | |
394 | return -ENOMEM; | |
395 | dev->mode_config.degamma_lut_size_property = prop; | |
396 | ||
397 | prop = drm_property_create(dev, | |
398 | DRM_MODE_PROP_BLOB, | |
399 | "CTM", 0); | |
400 | if (!prop) | |
401 | return -ENOMEM; | |
402 | dev->mode_config.ctm_property = prop; | |
403 | ||
404 | prop = drm_property_create(dev, | |
405 | DRM_MODE_PROP_BLOB, | |
406 | "GAMMA_LUT", 0); | |
407 | if (!prop) | |
408 | return -ENOMEM; | |
409 | dev->mode_config.gamma_lut_property = prop; | |
410 | ||
411 | prop = drm_property_create_range(dev, | |
412 | DRM_MODE_PROP_IMMUTABLE, | |
413 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
414 | if (!prop) | |
415 | return -ENOMEM; | |
416 | dev->mode_config.gamma_lut_size_property = prop; | |
417 | ||
9922ab5a RC |
418 | return 0; |
419 | } | |
420 | ||
f453ba04 DA |
421 | /** |
422 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
423 | * @dev: drm device for the ioctl |
424 | * @data: data pointer for the ioctl | |
425 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 426 | * |
f453ba04 DA |
427 | * Construct a set of configuration description structures and return |
428 | * them to the user, including CRTC, connector and framebuffer configuration. | |
429 | * | |
430 | * Called by the user via ioctl. | |
431 | * | |
c8e32cc1 | 432 | * Returns: |
1a498633 | 433 | * Zero on success, negative errno on failure. |
f453ba04 DA |
434 | */ |
435 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
436 | struct drm_file *file_priv) | |
437 | { | |
438 | struct drm_mode_card_res *card_res = data; | |
439 | struct list_head *lh; | |
440 | struct drm_framebuffer *fb; | |
441 | struct drm_connector *connector; | |
442 | struct drm_crtc *crtc; | |
443 | struct drm_encoder *encoder; | |
444 | int ret = 0; | |
445 | int connector_count = 0; | |
446 | int crtc_count = 0; | |
447 | int fb_count = 0; | |
448 | int encoder_count = 0; | |
9c7060f7 | 449 | int copied = 0; |
f453ba04 DA |
450 | uint32_t __user *fb_id; |
451 | uint32_t __user *crtc_id; | |
452 | uint32_t __user *connector_id; | |
453 | uint32_t __user *encoder_id; | |
f453ba04 | 454 | |
fb3b06c8 DA |
455 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
456 | return -EINVAL; | |
457 | ||
f453ba04 | 458 | |
4b096ac1 | 459 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
460 | /* |
461 | * For the non-control nodes we need to limit the list of resources | |
462 | * by IDs in the group list for this node | |
463 | */ | |
464 | list_for_each(lh, &file_priv->fbs) | |
465 | fb_count++; | |
466 | ||
4b096ac1 DV |
467 | /* handle this in 4 parts */ |
468 | /* FBs */ | |
469 | if (card_res->count_fbs >= fb_count) { | |
470 | copied = 0; | |
471 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
472 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
473 | if (put_user(fb->base.id, fb_id + copied)) { | |
474 | mutex_unlock(&file_priv->fbs_lock); | |
475 | return -EFAULT; | |
476 | } | |
477 | copied++; | |
478 | } | |
479 | } | |
480 | card_res->count_fbs = fb_count; | |
481 | mutex_unlock(&file_priv->fbs_lock); | |
482 | ||
fcf93f69 DV |
483 | /* mode_config.mutex protects the connector list against e.g. DP MST |
484 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
485 | mutex_lock(&dev->mode_config.mutex); | |
9c7060f7 DV |
486 | drm_for_each_crtc(crtc, dev) |
487 | crtc_count++; | |
f453ba04 | 488 | |
9c7060f7 DV |
489 | drm_for_each_connector(connector, dev) |
490 | connector_count++; | |
f453ba04 | 491 | |
9c7060f7 DV |
492 | drm_for_each_encoder(encoder, dev) |
493 | encoder_count++; | |
f453ba04 DA |
494 | |
495 | card_res->max_height = dev->mode_config.max_height; | |
496 | card_res->min_height = dev->mode_config.min_height; | |
497 | card_res->max_width = dev->mode_config.max_width; | |
498 | card_res->min_width = dev->mode_config.min_width; | |
499 | ||
f453ba04 DA |
500 | /* CRTCs */ |
501 | if (card_res->count_crtcs >= crtc_count) { | |
502 | copied = 0; | |
503 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
9c7060f7 | 504 | drm_for_each_crtc(crtc, dev) { |
9c7060f7 DV |
505 | if (put_user(crtc->base.id, crtc_id + copied)) { |
506 | ret = -EFAULT; | |
507 | goto out; | |
f453ba04 | 508 | } |
9c7060f7 | 509 | copied++; |
f453ba04 DA |
510 | } |
511 | } | |
512 | card_res->count_crtcs = crtc_count; | |
513 | ||
514 | /* Encoders */ | |
515 | if (card_res->count_encoders >= encoder_count) { | |
516 | copied = 0; | |
517 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
9c7060f7 | 518 | drm_for_each_encoder(encoder, dev) { |
9c7060f7 DV |
519 | if (put_user(encoder->base.id, encoder_id + |
520 | copied)) { | |
521 | ret = -EFAULT; | |
522 | goto out; | |
f453ba04 | 523 | } |
9c7060f7 | 524 | copied++; |
f453ba04 DA |
525 | } |
526 | } | |
527 | card_res->count_encoders = encoder_count; | |
528 | ||
529 | /* Connectors */ | |
530 | if (card_res->count_connectors >= connector_count) { | |
531 | copied = 0; | |
532 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
9c7060f7 | 533 | drm_for_each_connector(connector, dev) { |
9c7060f7 DV |
534 | if (put_user(connector->base.id, |
535 | connector_id + copied)) { | |
536 | ret = -EFAULT; | |
537 | goto out; | |
f453ba04 | 538 | } |
9c7060f7 | 539 | copied++; |
f453ba04 DA |
540 | } |
541 | } | |
542 | card_res->count_connectors = connector_count; | |
543 | ||
f453ba04 | 544 | out: |
fcf93f69 | 545 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
546 | return ret; |
547 | } | |
548 | ||
549 | /** | |
550 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
551 | * @dev: drm device for the ioctl |
552 | * @data: data pointer for the ioctl | |
553 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 554 | * |
f453ba04 DA |
555 | * Construct a CRTC configuration structure to return to the user. |
556 | * | |
557 | * Called by the user via ioctl. | |
558 | * | |
c8e32cc1 | 559 | * Returns: |
1a498633 | 560 | * Zero on success, negative errno on failure. |
f453ba04 DA |
561 | */ |
562 | int drm_mode_getcrtc(struct drm_device *dev, | |
563 | void *data, struct drm_file *file_priv) | |
564 | { | |
565 | struct drm_mode_crtc *crtc_resp = data; | |
566 | struct drm_crtc *crtc; | |
f453ba04 | 567 | |
fb3b06c8 DA |
568 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
569 | return -EINVAL; | |
570 | ||
a2b34e22 | 571 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
572 | if (!crtc) |
573 | return -ENOENT; | |
f453ba04 | 574 | |
fcf93f69 | 575 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 576 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
577 | if (crtc->primary->fb) |
578 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
579 | else |
580 | crtc_resp->fb_id = 0; | |
581 | ||
31c946e8 DV |
582 | if (crtc->state) { |
583 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
584 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
585 | if (crtc->state->enable) { | |
934a8a89 | 586 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 587 | crtc_resp->mode_valid = 1; |
f453ba04 | 588 | |
31c946e8 DV |
589 | } else { |
590 | crtc_resp->mode_valid = 0; | |
591 | } | |
f453ba04 | 592 | } else { |
31c946e8 DV |
593 | crtc_resp->x = crtc->x; |
594 | crtc_resp->y = crtc->y; | |
595 | if (crtc->enabled) { | |
934a8a89 | 596 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
597 | crtc_resp->mode_valid = 1; |
598 | ||
599 | } else { | |
600 | crtc_resp->mode_valid = 0; | |
601 | } | |
f453ba04 | 602 | } |
fcf93f69 | 603 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 604 | |
baf698b0 | 605 | return 0; |
f453ba04 DA |
606 | } |
607 | ||
2d13b679 DV |
608 | /** |
609 | * drm_mode_set_config_internal - helper to call ->set_config | |
610 | * @set: modeset config to set | |
611 | * | |
612 | * This is a little helper to wrap internal calls to the ->set_config driver | |
613 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 614 | * |
c8e32cc1 | 615 | * Returns: |
1a498633 | 616 | * Zero on success, negative errno on failure. |
2d13b679 DV |
617 | */ |
618 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
619 | { | |
620 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
621 | struct drm_framebuffer *fb; |
622 | struct drm_crtc *tmp; | |
b0d12325 DV |
623 | int ret; |
624 | ||
5cef29aa DV |
625 | /* |
626 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
627 | * connectors from it), hence we need to refcount the fbs across all | |
628 | * crtcs. Atomic modeset will have saner semantics ... | |
629 | */ | |
e4f62546 | 630 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 631 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 632 | |
b0d12325 | 633 | fb = set->fb; |
2d13b679 | 634 | |
b0d12325 DV |
635 | ret = crtc->funcs->set_config(set); |
636 | if (ret == 0) { | |
e13161af | 637 | crtc->primary->crtc = crtc; |
0fe27f06 | 638 | crtc->primary->fb = fb; |
5cef29aa | 639 | } |
cc85e121 | 640 | |
e4f62546 | 641 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
642 | if (tmp->primary->fb) |
643 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
644 | if (tmp->primary->old_fb) |
645 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
646 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
647 | } |
648 | ||
649 | return ret; | |
2d13b679 DV |
650 | } |
651 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
652 | ||
ecb7e16b GP |
653 | /** |
654 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
655 | * @mode: mode to query | |
656 | * @hdisplay: hdisplay value to fill in | |
657 | * @vdisplay: vdisplay value to fill in | |
658 | * | |
659 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
660 | * the appropriate layout. | |
661 | */ | |
662 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
663 | int *hdisplay, int *vdisplay) | |
664 | { | |
665 | struct drm_display_mode adjusted; | |
666 | ||
667 | drm_mode_copy(&adjusted, mode); | |
668 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
669 | *hdisplay = adjusted.crtc_hdisplay; | |
670 | *vdisplay = adjusted.crtc_vdisplay; | |
671 | } | |
672 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
673 | ||
af93629d MR |
674 | /** |
675 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
676 | * CRTC viewport | |
677 | * @crtc: CRTC that framebuffer will be displayed on | |
678 | * @x: x panning | |
679 | * @y: y panning | |
680 | * @mode: mode that framebuffer will be displayed under | |
681 | * @fb: framebuffer to check size of | |
c11e9283 | 682 | */ |
af93629d MR |
683 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
684 | int x, int y, | |
685 | const struct drm_display_mode *mode, | |
686 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
687 | |
688 | { | |
689 | int hdisplay, vdisplay; | |
690 | ||
ecb7e16b | 691 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 692 | |
33e0be63 | 693 | if (crtc->state && |
31ad61e4 JL |
694 | crtc->primary->state->rotation & (DRM_ROTATE_90 | |
695 | DRM_ROTATE_270)) | |
c11e9283 DL |
696 | swap(hdisplay, vdisplay); |
697 | ||
43968d7b DV |
698 | return drm_framebuffer_check_src_coords(x << 16, y << 16, |
699 | hdisplay << 16, vdisplay << 16, | |
700 | fb); | |
c11e9283 | 701 | } |
af93629d | 702 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 703 | |
f453ba04 DA |
704 | /** |
705 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
706 | * @dev: drm device for the ioctl |
707 | * @data: data pointer for the ioctl | |
708 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 709 | * |
f453ba04 DA |
710 | * Build a new CRTC configuration based on user request. |
711 | * | |
712 | * Called by the user via ioctl. | |
713 | * | |
c8e32cc1 | 714 | * Returns: |
1a498633 | 715 | * Zero on success, negative errno on failure. |
f453ba04 DA |
716 | */ |
717 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
718 | struct drm_file *file_priv) | |
719 | { | |
720 | struct drm_mode_config *config = &dev->mode_config; | |
721 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 722 | struct drm_crtc *crtc; |
f453ba04 DA |
723 | struct drm_connector **connector_set = NULL, *connector; |
724 | struct drm_framebuffer *fb = NULL; | |
725 | struct drm_display_mode *mode = NULL; | |
726 | struct drm_mode_set set; | |
727 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 728 | int ret; |
f453ba04 DA |
729 | int i; |
730 | ||
fb3b06c8 DA |
731 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
732 | return -EINVAL; | |
733 | ||
01447e9f ZJ |
734 | /* |
735 | * Universal plane src offsets are only 16.16, prevent havoc for | |
736 | * drivers using universal plane code internally. | |
737 | */ | |
738 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
739 | return -ERANGE; |
740 | ||
84849903 | 741 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
742 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
743 | if (!crtc) { | |
58367ed6 | 744 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 745 | ret = -ENOENT; |
f453ba04 DA |
746 | goto out; |
747 | } | |
fa3ab4c2 | 748 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 DA |
749 | |
750 | if (crtc_req->mode_valid) { | |
751 | /* If we have a mode we need a framebuffer. */ | |
752 | /* If we pass -1, set the mode with the currently bound fb */ | |
753 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 754 | if (!crtc->primary->fb) { |
6653cc8d VS |
755 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
756 | ret = -EINVAL; | |
757 | goto out; | |
f453ba04 | 758 | } |
f4510a27 | 759 | fb = crtc->primary->fb; |
b0d12325 DV |
760 | /* Make refcounting symmetric with the lookup path. */ |
761 | drm_framebuffer_reference(fb); | |
f453ba04 | 762 | } else { |
786b99ed DV |
763 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
764 | if (!fb) { | |
58367ed6 ZY |
765 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
766 | crtc_req->fb_id); | |
37c4e705 | 767 | ret = -ENOENT; |
f453ba04 DA |
768 | goto out; |
769 | } | |
f453ba04 DA |
770 | } |
771 | ||
772 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
773 | if (!mode) { |
774 | ret = -ENOMEM; | |
775 | goto out; | |
776 | } | |
777 | ||
934a8a89 | 778 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
779 | if (ret) { |
780 | DRM_DEBUG_KMS("Invalid mode\n"); | |
781 | goto out; | |
782 | } | |
783 | ||
7eb5f302 LP |
784 | /* |
785 | * Check whether the primary plane supports the fb pixel format. | |
786 | * Drivers not implementing the universal planes API use a | |
787 | * default formats list provided by the DRM core which doesn't | |
788 | * match real hardware capabilities. Skip the check in that | |
789 | * case. | |
790 | */ | |
791 | if (!crtc->primary->format_default) { | |
792 | ret = drm_plane_check_pixel_format(crtc->primary, | |
793 | fb->pixel_format); | |
794 | if (ret) { | |
d3828147 | 795 | char *format_name = drm_get_format_name(fb->pixel_format); |
90844f00 EE |
796 | DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name); |
797 | kfree(format_name); | |
7eb5f302 LP |
798 | goto out; |
799 | } | |
800 | } | |
801 | ||
c11e9283 DL |
802 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
803 | mode, fb); | |
804 | if (ret) | |
5f61bb42 | 805 | goto out; |
c11e9283 | 806 | |
f453ba04 DA |
807 | } |
808 | ||
809 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 810 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
811 | ret = -EINVAL; |
812 | goto out; | |
813 | } | |
814 | ||
7781de74 | 815 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 816 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
817 | crtc_req->count_connectors); |
818 | ret = -EINVAL; | |
819 | goto out; | |
820 | } | |
821 | ||
822 | if (crtc_req->count_connectors > 0) { | |
823 | u32 out_id; | |
824 | ||
825 | /* Avoid unbounded kernel memory allocation */ | |
826 | if (crtc_req->count_connectors > config->num_connector) { | |
827 | ret = -EINVAL; | |
828 | goto out; | |
829 | } | |
830 | ||
2f6c5389 TR |
831 | connector_set = kmalloc_array(crtc_req->count_connectors, |
832 | sizeof(struct drm_connector *), | |
833 | GFP_KERNEL); | |
f453ba04 DA |
834 | if (!connector_set) { |
835 | ret = -ENOMEM; | |
836 | goto out; | |
837 | } | |
838 | ||
839 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 840 | connector_set[i] = NULL; |
81f6c7f8 | 841 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
842 | if (get_user(out_id, &set_connectors_ptr[i])) { |
843 | ret = -EFAULT; | |
844 | goto out; | |
845 | } | |
846 | ||
b164d31f | 847 | connector = drm_connector_lookup(dev, out_id); |
a2b34e22 | 848 | if (!connector) { |
58367ed6 ZY |
849 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
850 | out_id); | |
f27657f2 | 851 | ret = -ENOENT; |
f453ba04 DA |
852 | goto out; |
853 | } | |
9440106b JG |
854 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
855 | connector->base.id, | |
25933820 | 856 | connector->name); |
f453ba04 DA |
857 | |
858 | connector_set[i] = connector; | |
859 | } | |
860 | } | |
861 | ||
862 | set.crtc = crtc; | |
863 | set.x = crtc_req->x; | |
864 | set.y = crtc_req->y; | |
865 | set.mode = mode; | |
866 | set.connectors = connector_set; | |
867 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 868 | set.fb = fb; |
2d13b679 | 869 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
870 | |
871 | out: | |
b0d12325 DV |
872 | if (fb) |
873 | drm_framebuffer_unreference(fb); | |
874 | ||
b164d31f DA |
875 | if (connector_set) { |
876 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
877 | if (connector_set[i]) | |
878 | drm_connector_unreference(connector_set[i]); | |
879 | } | |
880 | } | |
f453ba04 | 881 | kfree(connector_set); |
ee34ab5b | 882 | drm_mode_destroy(dev, mode); |
84849903 | 883 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
884 | return ret; |
885 | } | |
886 | ||
949619f3 DV |
887 | int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
888 | struct drm_property *property, | |
889 | uint64_t value) | |
4a67d391 | 890 | { |
bffd9de0 PZ |
891 | int ret = -EINVAL; |
892 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4a67d391 | 893 | |
bffd9de0 PZ |
894 | if (crtc->funcs->set_property) |
895 | ret = crtc->funcs->set_property(crtc, property, value); | |
896 | if (!ret) | |
897 | drm_object_property_set_value(obj, property, value); | |
4a67d391 | 898 | |
bffd9de0 | 899 | return ret; |
4a67d391 | 900 | } |
4a67d391 | 901 | |
c8e32cc1 DV |
902 | /** |
903 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
904 | * @crtc: CRTC to set the gamma table size for | |
905 | * @gamma_size: size of the gamma table | |
906 | * | |
907 | * Drivers which support gamma tables should set this to the supported gamma | |
908 | * table size when initializing the CRTC. Currently the drm core only supports a | |
909 | * fixed gamma table size. | |
910 | * | |
911 | * Returns: | |
1a498633 | 912 | * Zero on success, negative errno on failure. |
c8e32cc1 | 913 | */ |
4cae5b84 | 914 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 915 | int gamma_size) |
f453ba04 | 916 | { |
cf48e292 DV |
917 | uint16_t *r_base, *g_base, *b_base; |
918 | int i; | |
919 | ||
f453ba04 DA |
920 | crtc->gamma_size = gamma_size; |
921 | ||
bd3f0ff9 TR |
922 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
923 | GFP_KERNEL); | |
f453ba04 DA |
924 | if (!crtc->gamma_store) { |
925 | crtc->gamma_size = 0; | |
4cae5b84 | 926 | return -ENOMEM; |
f453ba04 DA |
927 | } |
928 | ||
cf48e292 DV |
929 | r_base = crtc->gamma_store; |
930 | g_base = r_base + gamma_size; | |
931 | b_base = g_base + gamma_size; | |
932 | for (i = 0; i < gamma_size; i++) { | |
933 | r_base[i] = i << 8; | |
934 | g_base[i] = i << 8; | |
935 | b_base[i] = i << 8; | |
936 | } | |
937 | ||
938 | ||
4cae5b84 | 939 | return 0; |
f453ba04 DA |
940 | } |
941 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
942 | ||
c8e32cc1 DV |
943 | /** |
944 | * drm_mode_gamma_set_ioctl - set the gamma table | |
945 | * @dev: DRM device | |
946 | * @data: ioctl data | |
947 | * @file_priv: DRM file info | |
948 | * | |
949 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
950 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
951 | * | |
952 | * Called by the user via ioctl. | |
953 | * | |
954 | * Returns: | |
1a498633 | 955 | * Zero on success, negative errno on failure. |
c8e32cc1 | 956 | */ |
f453ba04 DA |
957 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
958 | void *data, struct drm_file *file_priv) | |
959 | { | |
960 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
961 | struct drm_crtc *crtc; |
962 | void *r_base, *g_base, *b_base; | |
963 | int size; | |
964 | int ret = 0; | |
965 | ||
fb3b06c8 DA |
966 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
967 | return -EINVAL; | |
968 | ||
84849903 | 969 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
970 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
971 | if (!crtc) { | |
f27657f2 | 972 | ret = -ENOENT; |
f453ba04 DA |
973 | goto out; |
974 | } | |
f453ba04 | 975 | |
ebe0f244 LP |
976 | if (crtc->funcs->gamma_set == NULL) { |
977 | ret = -ENOSYS; | |
978 | goto out; | |
979 | } | |
980 | ||
f453ba04 DA |
981 | /* memcpy into gamma store */ |
982 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
983 | ret = -EINVAL; | |
984 | goto out; | |
985 | } | |
986 | ||
987 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
988 | r_base = crtc->gamma_store; | |
989 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
990 | ret = -EFAULT; | |
991 | goto out; | |
992 | } | |
993 | ||
994 | g_base = r_base + size; | |
995 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
996 | ret = -EFAULT; | |
997 | goto out; | |
998 | } | |
999 | ||
1000 | b_base = g_base + size; | |
1001 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
1002 | ret = -EFAULT; | |
1003 | goto out; | |
1004 | } | |
1005 | ||
7ea77283 | 1006 | ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); |
f453ba04 DA |
1007 | |
1008 | out: | |
84849903 | 1009 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1010 | return ret; |
1011 | ||
1012 | } | |
1013 | ||
c8e32cc1 DV |
1014 | /** |
1015 | * drm_mode_gamma_get_ioctl - get the gamma table | |
1016 | * @dev: DRM device | |
1017 | * @data: ioctl data | |
1018 | * @file_priv: DRM file info | |
1019 | * | |
1020 | * Copy the current gamma table into the storage provided. This also provides | |
1021 | * the gamma table size the driver expects, which can be used to size the | |
1022 | * allocated storage. | |
1023 | * | |
1024 | * Called by the user via ioctl. | |
1025 | * | |
1026 | * Returns: | |
1a498633 | 1027 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1028 | */ |
f453ba04 DA |
1029 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
1030 | void *data, struct drm_file *file_priv) | |
1031 | { | |
1032 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
1033 | struct drm_crtc *crtc; |
1034 | void *r_base, *g_base, *b_base; | |
1035 | int size; | |
1036 | int ret = 0; | |
1037 | ||
fb3b06c8 DA |
1038 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1039 | return -EINVAL; | |
1040 | ||
84849903 | 1041 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
1042 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
1043 | if (!crtc) { | |
f27657f2 | 1044 | ret = -ENOENT; |
f453ba04 DA |
1045 | goto out; |
1046 | } | |
f453ba04 DA |
1047 | |
1048 | /* memcpy into gamma store */ | |
1049 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
1050 | ret = -EINVAL; | |
1051 | goto out; | |
1052 | } | |
1053 | ||
1054 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
1055 | r_base = crtc->gamma_store; | |
1056 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
1057 | ret = -EFAULT; | |
1058 | goto out; | |
1059 | } | |
1060 | ||
1061 | g_base = r_base + size; | |
1062 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
1063 | ret = -EFAULT; | |
1064 | goto out; | |
1065 | } | |
1066 | ||
1067 | b_base = g_base + size; | |
1068 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
1069 | ret = -EFAULT; | |
1070 | goto out; | |
1071 | } | |
1072 | out: | |
84849903 | 1073 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1074 | return ret; |
1075 | } | |
d91d8a3f | 1076 | |
c8e32cc1 DV |
1077 | /** |
1078 | * drm_mode_config_reset - call ->reset callbacks | |
1079 | * @dev: drm device | |
1080 | * | |
1081 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
1082 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
1083 | * reset hardware and software state. | |
1084 | */ | |
eb033556 CW |
1085 | void drm_mode_config_reset(struct drm_device *dev) |
1086 | { | |
1087 | struct drm_crtc *crtc; | |
2a0d7cfd | 1088 | struct drm_plane *plane; |
eb033556 CW |
1089 | struct drm_encoder *encoder; |
1090 | struct drm_connector *connector; | |
1091 | ||
e4f62546 | 1092 | drm_for_each_plane(plane, dev) |
2a0d7cfd DV |
1093 | if (plane->funcs->reset) |
1094 | plane->funcs->reset(plane); | |
1095 | ||
e4f62546 | 1096 | drm_for_each_crtc(crtc, dev) |
eb033556 CW |
1097 | if (crtc->funcs->reset) |
1098 | crtc->funcs->reset(crtc); | |
1099 | ||
e4f62546 | 1100 | drm_for_each_encoder(encoder, dev) |
eb033556 CW |
1101 | if (encoder->funcs->reset) |
1102 | encoder->funcs->reset(encoder); | |
1103 | ||
f8c2ba31 | 1104 | mutex_lock(&dev->mode_config.mutex); |
4eebf60b | 1105 | drm_for_each_connector(connector, dev) |
eb033556 CW |
1106 | if (connector->funcs->reset) |
1107 | connector->funcs->reset(connector); | |
f8c2ba31 | 1108 | mutex_unlock(&dev->mode_config.mutex); |
eb033556 CW |
1109 | } |
1110 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 1111 | |
c8e32cc1 DV |
1112 | /** |
1113 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
1114 | * @dev: DRM device | |
1115 | * @data: ioctl data | |
1116 | * @file_priv: DRM file info | |
1117 | * | |
1118 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
1119 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
1120 | * handle can then be wrapped up into a framebuffer modeset object. | |
1121 | * | |
1122 | * Note that userspace is not allowed to use such objects for render | |
1123 | * acceleration - drivers must create their own private ioctls for such a use | |
1124 | * case. | |
1125 | * | |
1126 | * Called by the user via ioctl. | |
1127 | * | |
1128 | * Returns: | |
1a498633 | 1129 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1130 | */ |
ff72145b DA |
1131 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
1132 | void *data, struct drm_file *file_priv) | |
1133 | { | |
1134 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 1135 | u32 cpp, stride, size; |
ff72145b DA |
1136 | |
1137 | if (!dev->driver->dumb_create) | |
1138 | return -ENOSYS; | |
b28cd41f DH |
1139 | if (!args->width || !args->height || !args->bpp) |
1140 | return -EINVAL; | |
1141 | ||
1142 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 1143 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 1144 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 1145 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
1146 | return -EINVAL; |
1147 | stride = cpp * args->width; | |
1148 | if (args->height > 0xffffffffU / stride) | |
1149 | return -EINVAL; | |
1150 | ||
1151 | /* test for wrap-around */ | |
1152 | size = args->height * stride; | |
1153 | if (PAGE_ALIGN(size) == 0) | |
1154 | return -EINVAL; | |
1155 | ||
f6085952 TR |
1156 | /* |
1157 | * handle, pitch and size are output parameters. Zero them out to | |
1158 | * prevent drivers from accidentally using uninitialized data. Since | |
1159 | * not all existing userspace is clearing these fields properly we | |
1160 | * cannot reject IOCTL with garbage in them. | |
1161 | */ | |
1162 | args->handle = 0; | |
1163 | args->pitch = 0; | |
1164 | args->size = 0; | |
1165 | ||
ff72145b DA |
1166 | return dev->driver->dumb_create(file_priv, dev, args); |
1167 | } | |
1168 | ||
c8e32cc1 DV |
1169 | /** |
1170 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
1171 | * @dev: DRM device | |
1172 | * @data: ioctl data | |
1173 | * @file_priv: DRM file info | |
1174 | * | |
1175 | * Allocate an offset in the drm device node's address space to be able to | |
1176 | * memory map a dumb buffer. | |
1177 | * | |
1178 | * Called by the user via ioctl. | |
1179 | * | |
1180 | * Returns: | |
1a498633 | 1181 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1182 | */ |
ff72145b DA |
1183 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
1184 | void *data, struct drm_file *file_priv) | |
1185 | { | |
1186 | struct drm_mode_map_dumb *args = data; | |
1187 | ||
1188 | /* call driver ioctl to get mmap offset */ | |
1189 | if (!dev->driver->dumb_map_offset) | |
1190 | return -ENOSYS; | |
1191 | ||
1192 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
1193 | } | |
1194 | ||
c8e32cc1 DV |
1195 | /** |
1196 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
1197 | * @dev: DRM device | |
1198 | * @data: ioctl data | |
1199 | * @file_priv: DRM file info | |
1200 | * | |
1201 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
1202 | * Since buffer objects must be reference counted in the kernel a buffer object | |
1203 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
1204 | * | |
1205 | * Called by the user via ioctl. | |
1206 | * | |
1207 | * Returns: | |
1a498633 | 1208 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1209 | */ |
ff72145b DA |
1210 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
1211 | void *data, struct drm_file *file_priv) | |
1212 | { | |
1213 | struct drm_mode_destroy_dumb *args = data; | |
1214 | ||
1215 | if (!dev->driver->dumb_destroy) | |
1216 | return -ENOSYS; | |
1217 | ||
1218 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
1219 | } | |
248dbc23 | 1220 | |
3c9855f6 VS |
1221 | /** |
1222 | * drm_rotation_simplify() - Try to simplify the rotation | |
1223 | * @rotation: Rotation to be simplified | |
1224 | * @supported_rotations: Supported rotations | |
1225 | * | |
1226 | * Attempt to simplify the rotation to a form that is supported. | |
1227 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
1228 | * one could call this function like this: | |
1229 | * | |
31ad61e4 JL |
1230 | * drm_rotation_simplify(rotation, DRM_ROTATE_0 | |
1231 | * DRM_ROTATE_90 | DRM_ROTATE_180 | | |
1232 | * DRM_ROTATE_270 | DRM_REFLECT_Y); | |
3c9855f6 VS |
1233 | * |
1234 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
1235 | * transforms the hardware supports, this function may not | |
1236 | * be able to produce a supported transform, so the caller should | |
1237 | * check the result afterwards. | |
1238 | */ | |
1239 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
1240 | unsigned int supported_rotations) | |
1241 | { | |
1242 | if (rotation & ~supported_rotations) { | |
31ad61e4 | 1243 | rotation ^= DRM_REFLECT_X | DRM_REFLECT_Y; |
14152c8d JL |
1244 | rotation = (rotation & DRM_REFLECT_MASK) | |
1245 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); | |
3c9855f6 VS |
1246 | } |
1247 | ||
1248 | return rotation; | |
1249 | } | |
1250 | EXPORT_SYMBOL(drm_rotation_simplify); | |
1251 | ||
87d24fc3 LP |
1252 | /** |
1253 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
1254 | * @dev: DRM device | |
1255 | * | |
1256 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
1257 | * configuration of @dev. | |
1258 | * | |
1259 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
1260 | * problem, since this should happen single threaded at init time. It is the | |
1261 | * driver's problem to ensure this guarantee. | |
1262 | * | |
1263 | */ | |
1264 | void drm_mode_config_init(struct drm_device *dev) | |
1265 | { | |
1266 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 1267 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
1268 | mutex_init(&dev->mode_config.idr_mutex); |
1269 | mutex_init(&dev->mode_config.fb_lock); | |
8fb6e7a5 | 1270 | mutex_init(&dev->mode_config.blob_lock); |
87d24fc3 LP |
1271 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
1272 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
1273 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
1274 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
1275 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
1276 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
1277 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
1278 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 1279 | idr_init(&dev->mode_config.tile_idr); |
5fff80bb | 1280 | ida_init(&dev->mode_config.connector_ida); |
87d24fc3 LP |
1281 | |
1282 | drm_modeset_lock_all(dev); | |
6b4959f4 | 1283 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
1284 | drm_modeset_unlock_all(dev); |
1285 | ||
1286 | /* Just to be sure */ | |
1287 | dev->mode_config.num_fb = 0; | |
1288 | dev->mode_config.num_connector = 0; | |
1289 | dev->mode_config.num_crtc = 0; | |
1290 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
1291 | dev->mode_config.num_overlay_plane = 0; |
1292 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
1293 | } |
1294 | EXPORT_SYMBOL(drm_mode_config_init); | |
1295 | ||
1296 | /** | |
1297 | * drm_mode_config_cleanup - free up DRM mode_config info | |
1298 | * @dev: DRM device | |
1299 | * | |
1300 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
1301 | * free up the framebuffers and associated buffer objects. | |
1302 | * | |
1303 | * Note that since this /should/ happen single-threaded at driver/device | |
1304 | * teardown time, no locking is required. It's the driver's job to ensure that | |
1305 | * this guarantee actually holds true. | |
1306 | * | |
1307 | * FIXME: cleanup any dangling user buffer objects too | |
1308 | */ | |
1309 | void drm_mode_config_cleanup(struct drm_device *dev) | |
1310 | { | |
1311 | struct drm_connector *connector, *ot; | |
1312 | struct drm_crtc *crtc, *ct; | |
1313 | struct drm_encoder *encoder, *enct; | |
1314 | struct drm_framebuffer *fb, *fbt; | |
1315 | struct drm_property *property, *pt; | |
1316 | struct drm_property_blob *blob, *bt; | |
1317 | struct drm_plane *plane, *plt; | |
1318 | ||
1319 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
1320 | head) { | |
1321 | encoder->funcs->destroy(encoder); | |
1322 | } | |
1323 | ||
1324 | list_for_each_entry_safe(connector, ot, | |
1325 | &dev->mode_config.connector_list, head) { | |
1326 | connector->funcs->destroy(connector); | |
1327 | } | |
1328 | ||
1329 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
1330 | head) { | |
1331 | drm_property_destroy(dev, property); | |
1332 | } | |
1333 | ||
f35034f8 ML |
1334 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
1335 | head) { | |
1336 | plane->funcs->destroy(plane); | |
1337 | } | |
1338 | ||
1339 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
1340 | crtc->funcs->destroy(crtc); | |
1341 | } | |
1342 | ||
87d24fc3 | 1343 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
e2f5d2ea | 1344 | head_global) { |
6bcacf51 | 1345 | drm_property_unreference_blob(blob); |
87d24fc3 LP |
1346 | } |
1347 | ||
1348 | /* | |
1349 | * Single-threaded teardown context, so it's not required to grab the | |
1350 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
1351 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
1352 | * | |
1353 | * Also, if there are any framebuffers left, that's a driver leak now, | |
1354 | * so politely WARN about this. | |
1355 | */ | |
1356 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
1357 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
d0f37cf6 | 1358 | drm_framebuffer_free(&fb->base.refcount); |
87d24fc3 LP |
1359 | } |
1360 | ||
5fff80bb | 1361 | ida_destroy(&dev->mode_config.connector_ida); |
138f9ebb | 1362 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 1363 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 1364 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
1365 | } |
1366 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
1367 | |
1368 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
1369 | unsigned int supported_rotations) | |
1370 | { | |
1371 | static const struct drm_prop_enum_list props[] = { | |
31ad61e4 JL |
1372 | { __builtin_ffs(DRM_ROTATE_0) - 1, "rotate-0" }, |
1373 | { __builtin_ffs(DRM_ROTATE_90) - 1, "rotate-90" }, | |
1374 | { __builtin_ffs(DRM_ROTATE_180) - 1, "rotate-180" }, | |
1375 | { __builtin_ffs(DRM_ROTATE_270) - 1, "rotate-270" }, | |
1376 | { __builtin_ffs(DRM_REFLECT_X) - 1, "reflect-x" }, | |
1377 | { __builtin_ffs(DRM_REFLECT_Y) - 1, "reflect-y" }, | |
c1df5f3c VS |
1378 | }; |
1379 | ||
1380 | return drm_property_create_bitmask(dev, 0, "rotation", | |
1381 | props, ARRAY_SIZE(props), | |
1382 | supported_rotations); | |
1383 | } | |
1384 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
1385 | |
1386 | /** | |
1387 | * DOC: Tile group | |
1388 | * | |
1389 | * Tile groups are used to represent tiled monitors with a unique | |
1390 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
1391 | * a unique 8-byte handle, we store this in a tile group, so we | |
1392 | * have a common identifier for all tiles in a monitor group. | |
1393 | */ | |
1394 | static void drm_tile_group_free(struct kref *kref) | |
1395 | { | |
1396 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
1397 | struct drm_device *dev = tg->dev; | |
1398 | mutex_lock(&dev->mode_config.idr_mutex); | |
1399 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
1400 | mutex_unlock(&dev->mode_config.idr_mutex); | |
1401 | kfree(tg); | |
1402 | } | |
1403 | ||
1404 | /** | |
1405 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
1406 | * @dev: DRM device | |
1407 | * @tg: tile group to drop reference to. | |
1408 | * | |
1409 | * drop reference to tile group and free if 0. | |
1410 | */ | |
1411 | void drm_mode_put_tile_group(struct drm_device *dev, | |
1412 | struct drm_tile_group *tg) | |
1413 | { | |
1414 | kref_put(&tg->refcount, drm_tile_group_free); | |
1415 | } | |
1416 | ||
1417 | /** | |
1418 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
1419 | * @dev: DRM device | |
1420 | * @topology: 8-bytes unique per monitor. | |
1421 | * | |
1422 | * Use the unique bytes to get a reference to an existing tile group. | |
1423 | * | |
1424 | * RETURNS: | |
1425 | * tile group or NULL if not found. | |
1426 | */ | |
1427 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
1428 | char topology[8]) | |
1429 | { | |
1430 | struct drm_tile_group *tg; | |
1431 | int id; | |
1432 | mutex_lock(&dev->mode_config.idr_mutex); | |
1433 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
1434 | if (!memcmp(tg->group_data, topology, 8)) { | |
1435 | if (!kref_get_unless_zero(&tg->refcount)) | |
1436 | tg = NULL; | |
1437 | mutex_unlock(&dev->mode_config.idr_mutex); | |
1438 | return tg; | |
1439 | } | |
1440 | } | |
1441 | mutex_unlock(&dev->mode_config.idr_mutex); | |
1442 | return NULL; | |
1443 | } | |
81ddd1bc | 1444 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
138f9ebb DA |
1445 | |
1446 | /** | |
1447 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
1448 | * @dev: DRM device | |
1449 | * @topology: 8-bytes unique per monitor. | |
1450 | * | |
1451 | * Create a tile group for the unique monitor, and get a unique | |
1452 | * identifier for the tile group. | |
1453 | * | |
1454 | * RETURNS: | |
1455 | * new tile group or error. | |
1456 | */ | |
1457 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
1458 | char topology[8]) | |
1459 | { | |
1460 | struct drm_tile_group *tg; | |
1461 | int ret; | |
1462 | ||
1463 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
1464 | if (!tg) | |
1465 | return ERR_PTR(-ENOMEM); | |
1466 | ||
1467 | kref_init(&tg->refcount); | |
1468 | memcpy(tg->group_data, topology, 8); | |
1469 | tg->dev = dev; | |
1470 | ||
1471 | mutex_lock(&dev->mode_config.idr_mutex); | |
1472 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
1473 | if (ret >= 0) { | |
1474 | tg->id = ret; | |
1475 | } else { | |
1476 | kfree(tg); | |
1477 | tg = ERR_PTR(ret); | |
1478 | } | |
1479 | ||
1480 | mutex_unlock(&dev->mode_config.idr_mutex); | |
1481 | return tg; | |
1482 | } | |
81ddd1bc | 1483 | EXPORT_SYMBOL(drm_mode_create_tile_group); |
f8ed34ac JS |
1484 | |
1485 | /** | |
1486 | * drm_crtc_enable_color_mgmt - enable color management properties | |
1487 | * @crtc: DRM CRTC | |
1488 | * @degamma_lut_size: the size of the degamma lut (before CSC) | |
1489 | * @has_ctm: whether to attach ctm_property for CSC matrix | |
1490 | * @gamma_lut_size: the size of the gamma lut (after CSC) | |
1491 | * | |
1492 | * This function lets the driver enable the color correction | |
1493 | * properties on a CRTC. This includes 3 degamma, csc and gamma | |
1494 | * properties that userspace can set and 2 size properties to inform | |
1495 | * the userspace of the lut sizes. Each of the properties are | |
1496 | * optional. The gamma and degamma properties are only attached if | |
1497 | * their size is not 0 and ctm_property is only attached if has_ctm is | |
1498 | * true. | |
1499 | */ | |
1500 | void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, | |
1501 | uint degamma_lut_size, | |
1502 | bool has_ctm, | |
1503 | uint gamma_lut_size) | |
1504 | { | |
1505 | struct drm_device *dev = crtc->dev; | |
1506 | struct drm_mode_config *config = &dev->mode_config; | |
1507 | ||
1508 | if (degamma_lut_size) { | |
1509 | drm_object_attach_property(&crtc->base, | |
1510 | config->degamma_lut_property, 0); | |
1511 | drm_object_attach_property(&crtc->base, | |
1512 | config->degamma_lut_size_property, | |
1513 | degamma_lut_size); | |
1514 | } | |
1515 | ||
1516 | if (has_ctm) | |
1517 | drm_object_attach_property(&crtc->base, | |
1518 | config->ctm_property, 0); | |
1519 | ||
1520 | if (gamma_lut_size) { | |
1521 | drm_object_attach_property(&crtc->base, | |
1522 | config->gamma_lut_property, 0); | |
1523 | drm_object_attach_property(&crtc->base, | |
1524 | config->gamma_lut_size_property, | |
1525 | gamma_lut_size); | |
1526 | } | |
1527 | } | |
1528 | EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); |