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 | ||
f453ba04 DA |
57 | /* |
58 | * Optional properties | |
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 | ||
9f4c97a2 | 254 | static unsigned int drm_num_planes(struct drm_device *dev) |
eaf99c74 | 255 | { |
9f4c97a2 VS |
256 | unsigned int num = 0; |
257 | struct drm_plane *tmp; | |
eaf99c74 | 258 | |
9f4c97a2 VS |
259 | drm_for_each_plane(tmp, dev) { |
260 | num++; | |
eaf99c74 CW |
261 | } |
262 | ||
9f4c97a2 | 263 | return num; |
b164d31f DA |
264 | } |
265 | ||
f453ba04 | 266 | /** |
dc415ff9 | 267 | * drm_universal_plane_init - Initialize a new universal plane object |
f453ba04 | 268 | * @dev: DRM device |
35f2c3ae VS |
269 | * @plane: plane object to init |
270 | * @possible_crtcs: bitmask of possible CRTCs | |
271 | * @funcs: callbacks for the new plane | |
62cacc79 | 272 | * @formats: array of supported formats (DRM_FORMAT\_\*) |
35f2c3ae | 273 | * @format_count: number of elements in @formats |
dc415ff9 | 274 | * @type: type of plane (overlay, primary, cursor) |
b0b3b795 | 275 | * @name: printf style format string for the plane name, or NULL for default name |
f453ba04 | 276 | * |
dc415ff9 | 277 | * Initializes a plane object of type @type. |
6bfc56aa | 278 | * |
c8e32cc1 | 279 | * Returns: |
6bfc56aa | 280 | * Zero on success, error code on failure. |
f453ba04 | 281 | */ |
dc415ff9 MR |
282 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
283 | unsigned long possible_crtcs, | |
284 | const struct drm_plane_funcs *funcs, | |
45e3743a | 285 | const uint32_t *formats, unsigned int format_count, |
b0b3b795 VS |
286 | enum drm_plane_type type, |
287 | const char *name, ...) | |
8cf5c917 | 288 | { |
6b4959f4 | 289 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
290 | int ret; |
291 | ||
6bfc56aa VS |
292 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
293 | if (ret) | |
baf698b0 | 294 | return ret; |
6bfc56aa | 295 | |
4d02e2de DV |
296 | drm_modeset_lock_init(&plane->mutex); |
297 | ||
4d93914a | 298 | plane->base.properties = &plane->properties; |
8cf5c917 | 299 | plane->dev = dev; |
8cf5c917 | 300 | plane->funcs = funcs; |
2f6c5389 TR |
301 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
302 | GFP_KERNEL); | |
8cf5c917 JB |
303 | if (!plane->format_types) { |
304 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
7c8f6d25 | 305 | drm_mode_object_unregister(dev, &plane->base); |
baf698b0 | 306 | return -ENOMEM; |
8cf5c917 JB |
307 | } |
308 | ||
9f4c97a2 VS |
309 | if (name) { |
310 | va_list ap; | |
311 | ||
312 | va_start(ap, name); | |
313 | plane->name = kvasprintf(GFP_KERNEL, name, ap); | |
314 | va_end(ap); | |
315 | } else { | |
316 | plane->name = kasprintf(GFP_KERNEL, "plane-%d", | |
317 | drm_num_planes(dev)); | |
318 | } | |
319 | if (!plane->name) { | |
320 | kfree(plane->format_types); | |
7c8f6d25 | 321 | drm_mode_object_unregister(dev, &plane->base); |
9f4c97a2 VS |
322 | return -ENOMEM; |
323 | } | |
324 | ||
308e5bcb | 325 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
326 | plane->format_count = format_count; |
327 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 328 | plane->type = type; |
8cf5c917 | 329 | |
6b4959f4 | 330 | list_add_tail(&plane->head, &config->plane_list); |
490d3d1b | 331 | plane->index = config->num_total_plane++; |
dc415ff9 | 332 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 333 | config->num_overlay_plane++; |
8cf5c917 | 334 | |
9922ab5a | 335 | drm_object_attach_property(&plane->base, |
6b4959f4 | 336 | config->plane_type_property, |
9922ab5a RC |
337 | plane->type); |
338 | ||
6b4959f4 RC |
339 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
340 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
341 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
342 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
343 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
344 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
345 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
346 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
347 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
348 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
349 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
350 | } | |
351 | ||
baf698b0 | 352 | return 0; |
8cf5c917 | 353 | } |
dc415ff9 MR |
354 | EXPORT_SYMBOL(drm_universal_plane_init); |
355 | ||
79190ea2 BG |
356 | static int drm_plane_register_all(struct drm_device *dev) |
357 | { | |
358 | struct drm_plane *plane; | |
359 | int ret = 0; | |
360 | ||
361 | drm_for_each_plane(plane, dev) { | |
362 | if (plane->funcs->late_register) | |
363 | ret = plane->funcs->late_register(plane); | |
364 | if (ret) | |
365 | return ret; | |
366 | } | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
371 | static void drm_plane_unregister_all(struct drm_device *dev) | |
372 | { | |
373 | struct drm_plane *plane; | |
374 | ||
375 | drm_for_each_plane(plane, dev) { | |
376 | if (plane->funcs->early_unregister) | |
377 | plane->funcs->early_unregister(plane); | |
378 | } | |
379 | } | |
380 | ||
dc415ff9 MR |
381 | /** |
382 | * drm_plane_init - Initialize a legacy plane | |
383 | * @dev: DRM device | |
384 | * @plane: plane object to init | |
385 | * @possible_crtcs: bitmask of possible CRTCs | |
386 | * @funcs: callbacks for the new plane | |
62cacc79 | 387 | * @formats: array of supported formats (DRM_FORMAT\_\*) |
dc415ff9 MR |
388 | * @format_count: number of elements in @formats |
389 | * @is_primary: plane type (primary vs overlay) | |
390 | * | |
391 | * Legacy API to initialize a DRM plane. | |
392 | * | |
393 | * New drivers should call drm_universal_plane_init() instead. | |
394 | * | |
395 | * Returns: | |
396 | * Zero on success, error code on failure. | |
397 | */ | |
398 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
399 | unsigned long possible_crtcs, | |
400 | const struct drm_plane_funcs *funcs, | |
45e3743a | 401 | const uint32_t *formats, unsigned int format_count, |
dc415ff9 MR |
402 | bool is_primary) |
403 | { | |
404 | enum drm_plane_type type; | |
405 | ||
406 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
407 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
b0b3b795 | 408 | formats, format_count, type, NULL); |
dc415ff9 | 409 | } |
8cf5c917 JB |
410 | EXPORT_SYMBOL(drm_plane_init); |
411 | ||
35f2c3ae VS |
412 | /** |
413 | * drm_plane_cleanup - Clean up the core plane usage | |
414 | * @plane: plane to cleanup | |
415 | * | |
416 | * This function cleans up @plane and removes it from the DRM mode setting | |
417 | * core. Note that the function does *not* free the plane structure itself, | |
418 | * this is the responsibility of the caller. | |
419 | */ | |
8cf5c917 JB |
420 | void drm_plane_cleanup(struct drm_plane *plane) |
421 | { | |
422 | struct drm_device *dev = plane->dev; | |
423 | ||
84849903 | 424 | drm_modeset_lock_all(dev); |
8cf5c917 | 425 | kfree(plane->format_types); |
7c8f6d25 | 426 | drm_mode_object_unregister(dev, &plane->base); |
dc415ff9 MR |
427 | |
428 | BUG_ON(list_empty(&plane->head)); | |
429 | ||
490d3d1b CW |
430 | /* Note that the plane_list is considered to be static; should we |
431 | * remove the drm_plane at runtime we would have to decrement all | |
432 | * the indices on the drm_plane after us in the plane_list. | |
433 | */ | |
434 | ||
dc415ff9 MR |
435 | list_del(&plane->head); |
436 | dev->mode_config.num_total_plane--; | |
437 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
438 | dev->mode_config.num_overlay_plane--; | |
84849903 | 439 | drm_modeset_unlock_all(dev); |
3009c037 TR |
440 | |
441 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
442 | if (plane->state && plane->funcs->atomic_destroy_state) | |
443 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 | 444 | |
9f4c97a2 VS |
445 | kfree(plane->name); |
446 | ||
a18c0af1 | 447 | memset(plane, 0, sizeof(*plane)); |
8cf5c917 JB |
448 | } |
449 | EXPORT_SYMBOL(drm_plane_cleanup); | |
450 | ||
f81338a5 CK |
451 | /** |
452 | * drm_plane_from_index - find the registered plane at an index | |
453 | * @dev: DRM device | |
454 | * @idx: index of registered plane to find for | |
455 | * | |
456 | * Given a plane index, return the registered plane from DRM device's | |
457 | * list of planes with matching index. | |
458 | */ | |
459 | struct drm_plane * | |
460 | drm_plane_from_index(struct drm_device *dev, int idx) | |
461 | { | |
462 | struct drm_plane *plane; | |
f81338a5 | 463 | |
490d3d1b CW |
464 | drm_for_each_plane(plane, dev) |
465 | if (idx == plane->index) | |
f81338a5 | 466 | return plane; |
490d3d1b | 467 | |
f81338a5 CK |
468 | return NULL; |
469 | } | |
470 | EXPORT_SYMBOL(drm_plane_from_index); | |
471 | ||
35f2c3ae VS |
472 | /** |
473 | * drm_plane_force_disable - Forcibly disable a plane | |
474 | * @plane: plane to disable | |
475 | * | |
476 | * Forces the plane to be disabled. | |
477 | * | |
478 | * Used when the plane's current framebuffer is destroyed, | |
479 | * and when restoring fbdev mode. | |
480 | */ | |
9125e618 VS |
481 | void drm_plane_force_disable(struct drm_plane *plane) |
482 | { | |
483 | int ret; | |
484 | ||
3d30a59b | 485 | if (!plane->fb) |
9125e618 VS |
486 | return; |
487 | ||
3d30a59b | 488 | plane->old_fb = plane->fb; |
9125e618 | 489 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 490 | if (ret) { |
9125e618 | 491 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 492 | plane->old_fb = NULL; |
731cce48 DV |
493 | return; |
494 | } | |
9125e618 | 495 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 496 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 497 | plane->old_fb = NULL; |
9125e618 VS |
498 | plane->fb = NULL; |
499 | plane->crtc = NULL; | |
500 | } | |
501 | EXPORT_SYMBOL(drm_plane_force_disable); | |
502 | ||
79190ea2 BG |
503 | int drm_modeset_register_all(struct drm_device *dev) |
504 | { | |
505 | int ret; | |
506 | ||
507 | ret = drm_plane_register_all(dev); | |
508 | if (ret) | |
509 | goto err_plane; | |
510 | ||
511 | ret = drm_crtc_register_all(dev); | |
512 | if (ret) | |
513 | goto err_crtc; | |
514 | ||
515 | ret = drm_encoder_register_all(dev); | |
516 | if (ret) | |
517 | goto err_encoder; | |
518 | ||
519 | ret = drm_connector_register_all(dev); | |
520 | if (ret) | |
521 | goto err_connector; | |
522 | ||
523 | return 0; | |
524 | ||
525 | err_connector: | |
526 | drm_encoder_unregister_all(dev); | |
527 | err_encoder: | |
528 | drm_crtc_unregister_all(dev); | |
529 | err_crtc: | |
530 | drm_plane_unregister_all(dev); | |
531 | err_plane: | |
532 | return ret; | |
533 | } | |
534 | ||
535 | void drm_modeset_unregister_all(struct drm_device *dev) | |
536 | { | |
537 | drm_connector_unregister_all(dev); | |
538 | drm_encoder_unregister_all(dev); | |
539 | drm_crtc_unregister_all(dev); | |
540 | drm_plane_unregister_all(dev); | |
541 | } | |
542 | ||
6b4959f4 | 543 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 544 | { |
356af0e1 | 545 | struct drm_property *prop; |
52217195 | 546 | int ret; |
f453ba04 | 547 | |
52217195 DV |
548 | ret = drm_connector_create_standard_properties(dev); |
549 | if (ret) | |
550 | return ret; | |
9922ab5a | 551 | |
6b4959f4 | 552 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
553 | "type", drm_plane_type_enum_list, |
554 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
555 | if (!prop) |
556 | return -ENOMEM; | |
557 | dev->mode_config.plane_type_property = prop; | |
558 | ||
559 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
560 | "SRC_X", 0, UINT_MAX); | |
561 | if (!prop) | |
562 | return -ENOMEM; | |
563 | dev->mode_config.prop_src_x = prop; | |
564 | ||
565 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
566 | "SRC_Y", 0, UINT_MAX); | |
567 | if (!prop) | |
568 | return -ENOMEM; | |
569 | dev->mode_config.prop_src_y = prop; | |
570 | ||
571 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
572 | "SRC_W", 0, UINT_MAX); | |
573 | if (!prop) | |
574 | return -ENOMEM; | |
575 | dev->mode_config.prop_src_w = prop; | |
576 | ||
577 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
578 | "SRC_H", 0, UINT_MAX); | |
579 | if (!prop) | |
580 | return -ENOMEM; | |
581 | dev->mode_config.prop_src_h = prop; | |
582 | ||
583 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
584 | "CRTC_X", INT_MIN, INT_MAX); | |
585 | if (!prop) | |
586 | return -ENOMEM; | |
587 | dev->mode_config.prop_crtc_x = prop; | |
588 | ||
589 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
590 | "CRTC_Y", INT_MIN, INT_MAX); | |
591 | if (!prop) | |
592 | return -ENOMEM; | |
593 | dev->mode_config.prop_crtc_y = prop; | |
594 | ||
595 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
596 | "CRTC_W", 0, INT_MAX); | |
597 | if (!prop) | |
598 | return -ENOMEM; | |
599 | dev->mode_config.prop_crtc_w = prop; | |
600 | ||
601 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
602 | "CRTC_H", 0, INT_MAX); | |
603 | if (!prop) | |
604 | return -ENOMEM; | |
605 | dev->mode_config.prop_crtc_h = prop; | |
606 | ||
607 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
608 | "FB_ID", DRM_MODE_OBJECT_FB); | |
609 | if (!prop) | |
610 | return -ENOMEM; | |
611 | dev->mode_config.prop_fb_id = prop; | |
612 | ||
613 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
614 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
615 | if (!prop) | |
616 | return -ENOMEM; | |
617 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 618 | |
eab3bbef DV |
619 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
620 | "ACTIVE"); | |
621 | if (!prop) | |
622 | return -ENOMEM; | |
623 | dev->mode_config.prop_active = prop; | |
624 | ||
955f3c33 DS |
625 | prop = drm_property_create(dev, |
626 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
627 | "MODE_ID", 0); | |
628 | if (!prop) | |
629 | return -ENOMEM; | |
630 | dev->mode_config.prop_mode_id = prop; | |
631 | ||
5488dc16 LL |
632 | prop = drm_property_create(dev, |
633 | DRM_MODE_PROP_BLOB, | |
634 | "DEGAMMA_LUT", 0); | |
635 | if (!prop) | |
636 | return -ENOMEM; | |
637 | dev->mode_config.degamma_lut_property = prop; | |
638 | ||
639 | prop = drm_property_create_range(dev, | |
640 | DRM_MODE_PROP_IMMUTABLE, | |
641 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
642 | if (!prop) | |
643 | return -ENOMEM; | |
644 | dev->mode_config.degamma_lut_size_property = prop; | |
645 | ||
646 | prop = drm_property_create(dev, | |
647 | DRM_MODE_PROP_BLOB, | |
648 | "CTM", 0); | |
649 | if (!prop) | |
650 | return -ENOMEM; | |
651 | dev->mode_config.ctm_property = prop; | |
652 | ||
653 | prop = drm_property_create(dev, | |
654 | DRM_MODE_PROP_BLOB, | |
655 | "GAMMA_LUT", 0); | |
656 | if (!prop) | |
657 | return -ENOMEM; | |
658 | dev->mode_config.gamma_lut_property = prop; | |
659 | ||
660 | prop = drm_property_create_range(dev, | |
661 | DRM_MODE_PROP_IMMUTABLE, | |
662 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
663 | if (!prop) | |
664 | return -ENOMEM; | |
665 | dev->mode_config.gamma_lut_size_property = prop; | |
666 | ||
9922ab5a RC |
667 | return 0; |
668 | } | |
669 | ||
f453ba04 | 670 | /** |
f453ba04 | 671 | * drm_mode_getresources - get graphics configuration |
065a50ed DV |
672 | * @dev: drm device for the ioctl |
673 | * @data: data pointer for the ioctl | |
674 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 675 | * |
f453ba04 DA |
676 | * Construct a set of configuration description structures and return |
677 | * them to the user, including CRTC, connector and framebuffer configuration. | |
678 | * | |
679 | * Called by the user via ioctl. | |
f453ba04 | 680 | * |
c8e32cc1 | 681 | * Returns: |
1a498633 | 682 | * Zero on success, negative errno on failure. |
f453ba04 | 683 | */ |
f453ba04 DA |
684 | int drm_mode_getresources(struct drm_device *dev, void *data, |
685 | struct drm_file *file_priv) | |
f453ba04 | 686 | { |
f453ba04 DA |
687 | struct drm_mode_card_res *card_res = data; |
688 | struct list_head *lh; | |
689 | struct drm_framebuffer *fb; | |
690 | struct drm_connector *connector; | |
691 | struct drm_crtc *crtc; | |
692 | struct drm_encoder *encoder; | |
693 | int ret = 0; | |
694 | int connector_count = 0; | |
695 | int crtc_count = 0; | |
696 | int fb_count = 0; | |
697 | int encoder_count = 0; | |
9c7060f7 | 698 | int copied = 0; |
f453ba04 DA |
699 | uint32_t __user *fb_id; |
700 | uint32_t __user *crtc_id; | |
701 | uint32_t __user *connector_id; | |
702 | uint32_t __user *encoder_id; | |
f453ba04 | 703 | |
fb3b06c8 DA |
704 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
705 | return -EINVAL; | |
f453ba04 | 706 | |
f453ba04 | 707 | |
4b096ac1 | 708 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
709 | /* |
710 | * For the non-control nodes we need to limit the list of resources | |
711 | * by IDs in the group list for this node | |
712 | */ | |
713 | list_for_each(lh, &file_priv->fbs) | |
714 | fb_count++; | |
715 | ||
4b096ac1 DV |
716 | /* handle this in 4 parts */ |
717 | /* FBs */ | |
718 | if (card_res->count_fbs >= fb_count) { | |
719 | copied = 0; | |
720 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
721 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
722 | if (put_user(fb->base.id, fb_id + copied)) { | |
723 | mutex_unlock(&file_priv->fbs_lock); | |
724 | return -EFAULT; | |
725 | } | |
726 | copied++; | |
727 | } | |
728 | } | |
729 | card_res->count_fbs = fb_count; | |
730 | mutex_unlock(&file_priv->fbs_lock); | |
731 | ||
fcf93f69 DV |
732 | /* mode_config.mutex protects the connector list against e.g. DP MST |
733 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
734 | mutex_lock(&dev->mode_config.mutex); | |
9c7060f7 DV |
735 | drm_for_each_crtc(crtc, dev) |
736 | crtc_count++; | |
f453ba04 | 737 | |
9c7060f7 DV |
738 | drm_for_each_connector(connector, dev) |
739 | connector_count++; | |
f453ba04 | 740 | |
9c7060f7 DV |
741 | drm_for_each_encoder(encoder, dev) |
742 | encoder_count++; | |
f453ba04 DA |
743 | |
744 | card_res->max_height = dev->mode_config.max_height; | |
745 | card_res->min_height = dev->mode_config.min_height; | |
746 | card_res->max_width = dev->mode_config.max_width; | |
747 | card_res->min_width = dev->mode_config.min_width; | |
748 | ||
f453ba04 DA |
749 | /* CRTCs */ |
750 | if (card_res->count_crtcs >= crtc_count) { | |
751 | copied = 0; | |
752 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
9c7060f7 | 753 | drm_for_each_crtc(crtc, dev) { |
9c7060f7 DV |
754 | if (put_user(crtc->base.id, crtc_id + copied)) { |
755 | ret = -EFAULT; | |
756 | goto out; | |
f453ba04 | 757 | } |
9c7060f7 | 758 | copied++; |
f453ba04 DA |
759 | } |
760 | } | |
761 | card_res->count_crtcs = crtc_count; | |
762 | ||
763 | /* Encoders */ | |
764 | if (card_res->count_encoders >= encoder_count) { | |
765 | copied = 0; | |
766 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
9c7060f7 | 767 | drm_for_each_encoder(encoder, dev) { |
9c7060f7 DV |
768 | if (put_user(encoder->base.id, encoder_id + |
769 | copied)) { | |
770 | ret = -EFAULT; | |
771 | goto out; | |
f453ba04 | 772 | } |
9c7060f7 | 773 | copied++; |
f453ba04 DA |
774 | } |
775 | } | |
776 | card_res->count_encoders = encoder_count; | |
777 | ||
778 | /* Connectors */ | |
779 | if (card_res->count_connectors >= connector_count) { | |
780 | copied = 0; | |
781 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
9c7060f7 | 782 | drm_for_each_connector(connector, dev) { |
9c7060f7 DV |
783 | if (put_user(connector->base.id, |
784 | connector_id + copied)) { | |
785 | ret = -EFAULT; | |
786 | goto out; | |
f453ba04 | 787 | } |
9c7060f7 | 788 | copied++; |
f453ba04 DA |
789 | } |
790 | } | |
791 | card_res->count_connectors = connector_count; | |
792 | ||
f453ba04 | 793 | out: |
fcf93f69 | 794 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
795 | return ret; |
796 | } | |
797 | ||
798 | /** | |
799 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
800 | * @dev: drm device for the ioctl |
801 | * @data: data pointer for the ioctl | |
802 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 803 | * |
f453ba04 DA |
804 | * Construct a CRTC configuration structure to return to the user. |
805 | * | |
806 | * Called by the user via ioctl. | |
807 | * | |
c8e32cc1 | 808 | * Returns: |
1a498633 | 809 | * Zero on success, negative errno on failure. |
f453ba04 DA |
810 | */ |
811 | int drm_mode_getcrtc(struct drm_device *dev, | |
812 | void *data, struct drm_file *file_priv) | |
813 | { | |
814 | struct drm_mode_crtc *crtc_resp = data; | |
815 | struct drm_crtc *crtc; | |
f453ba04 | 816 | |
fb3b06c8 DA |
817 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
818 | return -EINVAL; | |
819 | ||
a2b34e22 | 820 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
821 | if (!crtc) |
822 | return -ENOENT; | |
f453ba04 | 823 | |
fcf93f69 | 824 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 825 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
826 | if (crtc->primary->fb) |
827 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
828 | else |
829 | crtc_resp->fb_id = 0; | |
830 | ||
31c946e8 DV |
831 | if (crtc->state) { |
832 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
833 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
834 | if (crtc->state->enable) { | |
934a8a89 | 835 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 836 | crtc_resp->mode_valid = 1; |
f453ba04 | 837 | |
31c946e8 DV |
838 | } else { |
839 | crtc_resp->mode_valid = 0; | |
840 | } | |
f453ba04 | 841 | } else { |
31c946e8 DV |
842 | crtc_resp->x = crtc->x; |
843 | crtc_resp->y = crtc->y; | |
844 | if (crtc->enabled) { | |
934a8a89 | 845 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
846 | crtc_resp->mode_valid = 1; |
847 | ||
848 | } else { | |
849 | crtc_resp->mode_valid = 0; | |
850 | } | |
f453ba04 | 851 | } |
fcf93f69 | 852 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 853 | |
baf698b0 | 854 | return 0; |
f453ba04 DA |
855 | } |
856 | ||
8cf5c917 | 857 | /** |
c8e32cc1 | 858 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
859 | * @dev: DRM device |
860 | * @data: ioctl data | |
861 | * @file_priv: DRM file info | |
862 | * | |
c8e32cc1 DV |
863 | * Construct a list of plane ids to return to the user. |
864 | * | |
865 | * Called by the user via ioctl. | |
866 | * | |
867 | * Returns: | |
1a498633 | 868 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
869 | */ |
870 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 871 | struct drm_file *file_priv) |
8cf5c917 JB |
872 | { |
873 | struct drm_mode_get_plane_res *plane_resp = data; | |
874 | struct drm_mode_config *config; | |
875 | struct drm_plane *plane; | |
876 | uint32_t __user *plane_ptr; | |
fcf93f69 | 877 | int copied = 0; |
681e7ec7 | 878 | unsigned num_planes; |
8cf5c917 JB |
879 | |
880 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
881 | return -EINVAL; | |
882 | ||
8cf5c917 JB |
883 | config = &dev->mode_config; |
884 | ||
681e7ec7 MR |
885 | if (file_priv->universal_planes) |
886 | num_planes = config->num_total_plane; | |
887 | else | |
888 | num_planes = config->num_overlay_plane; | |
889 | ||
8cf5c917 JB |
890 | /* |
891 | * This ioctl is called twice, once to determine how much space is | |
892 | * needed, and the 2nd time to fill it. | |
893 | */ | |
681e7ec7 MR |
894 | if (num_planes && |
895 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 896 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 897 | |
fcf93f69 | 898 | /* Plane lists are invariant, no locking needed. */ |
e4f62546 | 899 | drm_for_each_plane(plane, dev) { |
681e7ec7 MR |
900 | /* |
901 | * Unless userspace set the 'universal planes' | |
902 | * capability bit, only advertise overlays. | |
903 | */ | |
904 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
905 | !file_priv->universal_planes) | |
e27dde3e MR |
906 | continue; |
907 | ||
fcf93f69 DV |
908 | if (put_user(plane->base.id, plane_ptr + copied)) |
909 | return -EFAULT; | |
8cf5c917 JB |
910 | copied++; |
911 | } | |
912 | } | |
681e7ec7 | 913 | plane_resp->count_planes = num_planes; |
8cf5c917 | 914 | |
fcf93f69 | 915 | return 0; |
8cf5c917 JB |
916 | } |
917 | ||
918 | /** | |
c8e32cc1 | 919 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
920 | * @dev: DRM device |
921 | * @data: ioctl data | |
922 | * @file_priv: DRM file info | |
923 | * | |
c8e32cc1 DV |
924 | * Construct a plane configuration structure to return to the user. |
925 | * | |
926 | * Called by the user via ioctl. | |
927 | * | |
928 | * Returns: | |
1a498633 | 929 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
930 | */ |
931 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 932 | struct drm_file *file_priv) |
8cf5c917 JB |
933 | { |
934 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
935 | struct drm_plane *plane; |
936 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
937 | |
938 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
939 | return -EINVAL; | |
940 | ||
a2b34e22 | 941 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
942 | if (!plane) |
943 | return -ENOENT; | |
8cf5c917 | 944 | |
fcf93f69 | 945 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
946 | if (plane->crtc) |
947 | plane_resp->crtc_id = plane->crtc->base.id; | |
948 | else | |
949 | plane_resp->crtc_id = 0; | |
950 | ||
951 | if (plane->fb) | |
952 | plane_resp->fb_id = plane->fb->base.id; | |
953 | else | |
954 | plane_resp->fb_id = 0; | |
fcf93f69 | 955 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
956 | |
957 | plane_resp->plane_id = plane->base.id; | |
958 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 959 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
960 | |
961 | /* | |
962 | * This ioctl is called twice, once to determine how much space is | |
963 | * needed, and the 2nd time to fill it. | |
964 | */ | |
965 | if (plane->format_count && | |
966 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 967 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
968 | if (copy_to_user(format_ptr, |
969 | plane->format_types, | |
970 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 971 | return -EFAULT; |
8cf5c917 JB |
972 | } |
973 | } | |
974 | plane_resp->count_format_types = plane->format_count; | |
975 | ||
baf698b0 | 976 | return 0; |
8cf5c917 JB |
977 | } |
978 | ||
ead8610d LP |
979 | /** |
980 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
981 | * @plane: plane to check for format support | |
982 | * @format: the pixel format | |
983 | * | |
984 | * Returns: | |
985 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
986 | * otherwise. | |
987 | */ | |
988 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
989 | { | |
990 | unsigned int i; | |
991 | ||
992 | for (i = 0; i < plane->format_count; i++) { | |
993 | if (format == plane->format_types[i]) | |
994 | return 0; | |
995 | } | |
996 | ||
997 | return -EINVAL; | |
998 | } | |
999 | ||
ce8d9ecc VS |
1000 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
1001 | uint32_t src_w, uint32_t src_h, | |
1002 | const struct drm_framebuffer *fb) | |
1003 | { | |
1004 | unsigned int fb_width, fb_height; | |
1005 | ||
1006 | fb_width = fb->width << 16; | |
1007 | fb_height = fb->height << 16; | |
1008 | ||
1009 | /* Make sure source coordinates are inside the fb. */ | |
1010 | if (src_w > fb_width || | |
1011 | src_x > fb_width - src_w || | |
1012 | src_h > fb_height || | |
1013 | src_y > fb_height - src_h) { | |
1014 | DRM_DEBUG_KMS("Invalid source coordinates " | |
1015 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
1016 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, | |
1017 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
1018 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
1019 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
1020 | return -ENOSPC; | |
1021 | } | |
1022 | ||
1023 | return 0; | |
1024 | } | |
1025 | ||
b36552b3 MR |
1026 | /* |
1027 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 1028 | * |
b36552b3 MR |
1029 | * Note that we assume an extra reference has already been taken on fb. If the |
1030 | * update fails, this reference will be dropped before return; if it succeeds, | |
1031 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 1032 | * |
b36552b3 | 1033 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 1034 | */ |
f2b50c11 DV |
1035 | static int __setplane_internal(struct drm_plane *plane, |
1036 | struct drm_crtc *crtc, | |
1037 | struct drm_framebuffer *fb, | |
1038 | int32_t crtc_x, int32_t crtc_y, | |
1039 | uint32_t crtc_w, uint32_t crtc_h, | |
1040 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
1041 | uint32_t src_x, uint32_t src_y, | |
1042 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 1043 | { |
8cf5c917 JB |
1044 | int ret = 0; |
1045 | ||
8cf5c917 | 1046 | /* No fb means shut it down */ |
b36552b3 | 1047 | if (!fb) { |
3d30a59b | 1048 | plane->old_fb = plane->fb; |
731cce48 DV |
1049 | ret = plane->funcs->disable_plane(plane); |
1050 | if (!ret) { | |
1051 | plane->crtc = NULL; | |
1052 | plane->fb = NULL; | |
1053 | } else { | |
3d30a59b | 1054 | plane->old_fb = NULL; |
731cce48 | 1055 | } |
8cf5c917 JB |
1056 | goto out; |
1057 | } | |
1058 | ||
7f994f3f MR |
1059 | /* Check whether this plane is usable on this CRTC */ |
1060 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
1061 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
1062 | ret = -EINVAL; | |
1063 | goto out; | |
1064 | } | |
1065 | ||
62443be6 | 1066 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
1067 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
1068 | if (ret) { | |
d3828147 | 1069 | char *format_name = drm_get_format_name(fb->pixel_format); |
90844f00 EE |
1070 | DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name); |
1071 | kfree(format_name); | |
62443be6 VS |
1072 | goto out; |
1073 | } | |
1074 | ||
3968be94 MR |
1075 | /* Give drivers some help against integer overflows */ |
1076 | if (crtc_w > INT_MAX || | |
1077 | crtc_x > INT_MAX - (int32_t) crtc_w || | |
1078 | crtc_h > INT_MAX || | |
1079 | crtc_y > INT_MAX - (int32_t) crtc_h) { | |
1080 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
1081 | crtc_w, crtc_h, crtc_x, crtc_y); | |
c390eed0 VS |
1082 | ret = -ERANGE; |
1083 | goto out; | |
3968be94 MR |
1084 | } |
1085 | ||
ce8d9ecc VS |
1086 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
1087 | if (ret) | |
42ef8789 | 1088 | goto out; |
42ef8789 | 1089 | |
3d30a59b | 1090 | plane->old_fb = plane->fb; |
8cf5c917 | 1091 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
1092 | crtc_x, crtc_y, crtc_w, crtc_h, |
1093 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
1094 | if (!ret) { |
1095 | plane->crtc = crtc; | |
1096 | plane->fb = fb; | |
35f8badc | 1097 | fb = NULL; |
0fe27f06 | 1098 | } else { |
3d30a59b | 1099 | plane->old_fb = NULL; |
8cf5c917 JB |
1100 | } |
1101 | ||
1102 | out: | |
6c2a7532 DV |
1103 | if (fb) |
1104 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
1105 | if (plane->old_fb) |
1106 | drm_framebuffer_unreference(plane->old_fb); | |
1107 | plane->old_fb = NULL; | |
8cf5c917 JB |
1108 | |
1109 | return ret; | |
f2b50c11 | 1110 | } |
b36552b3 | 1111 | |
f2b50c11 DV |
1112 | static int setplane_internal(struct drm_plane *plane, |
1113 | struct drm_crtc *crtc, | |
1114 | struct drm_framebuffer *fb, | |
1115 | int32_t crtc_x, int32_t crtc_y, | |
1116 | uint32_t crtc_w, uint32_t crtc_h, | |
1117 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
1118 | uint32_t src_x, uint32_t src_y, | |
1119 | uint32_t src_w, uint32_t src_h) | |
1120 | { | |
1121 | int ret; | |
1122 | ||
1123 | drm_modeset_lock_all(plane->dev); | |
1124 | ret = __setplane_internal(plane, crtc, fb, | |
1125 | crtc_x, crtc_y, crtc_w, crtc_h, | |
1126 | src_x, src_y, src_w, src_h); | |
1127 | drm_modeset_unlock_all(plane->dev); | |
1128 | ||
1129 | return ret; | |
b36552b3 MR |
1130 | } |
1131 | ||
1132 | /** | |
1133 | * drm_mode_setplane - configure a plane's configuration | |
1134 | * @dev: DRM device | |
1135 | * @data: ioctl data* | |
1136 | * @file_priv: DRM file info | |
1137 | * | |
1138 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
1139 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
1140 | * valid crtc). | |
1141 | * | |
1142 | * Returns: | |
1a498633 | 1143 | * Zero on success, negative errno on failure. |
b36552b3 MR |
1144 | */ |
1145 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
1146 | struct drm_file *file_priv) | |
1147 | { | |
1148 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
1149 | struct drm_plane *plane; |
1150 | struct drm_crtc *crtc = NULL; | |
1151 | struct drm_framebuffer *fb = NULL; | |
1152 | ||
1153 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1154 | return -EINVAL; | |
1155 | ||
b36552b3 MR |
1156 | /* |
1157 | * First, find the plane, crtc, and fb objects. If not available, | |
1158 | * we don't bother to call the driver. | |
1159 | */ | |
933f622f RC |
1160 | plane = drm_plane_find(dev, plane_req->plane_id); |
1161 | if (!plane) { | |
b36552b3 MR |
1162 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
1163 | plane_req->plane_id); | |
1164 | return -ENOENT; | |
1165 | } | |
b36552b3 MR |
1166 | |
1167 | if (plane_req->fb_id) { | |
1168 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
1169 | if (!fb) { | |
1170 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
1171 | plane_req->fb_id); | |
1172 | return -ENOENT; | |
1173 | } | |
1174 | ||
933f622f RC |
1175 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
1176 | if (!crtc) { | |
b36552b3 MR |
1177 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
1178 | plane_req->crtc_id); | |
1179 | return -ENOENT; | |
1180 | } | |
b36552b3 MR |
1181 | } |
1182 | ||
161d0dc1 MR |
1183 | /* |
1184 | * setplane_internal will take care of deref'ing either the old or new | |
1185 | * framebuffer depending on success. | |
1186 | */ | |
17cfd91f | 1187 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
1188 | plane_req->crtc_x, plane_req->crtc_y, |
1189 | plane_req->crtc_w, plane_req->crtc_h, | |
1190 | plane_req->src_x, plane_req->src_y, | |
1191 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
1192 | } |
1193 | ||
2d13b679 DV |
1194 | /** |
1195 | * drm_mode_set_config_internal - helper to call ->set_config | |
1196 | * @set: modeset config to set | |
1197 | * | |
1198 | * This is a little helper to wrap internal calls to the ->set_config driver | |
1199 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 1200 | * |
c8e32cc1 | 1201 | * Returns: |
1a498633 | 1202 | * Zero on success, negative errno on failure. |
2d13b679 DV |
1203 | */ |
1204 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
1205 | { | |
1206 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
1207 | struct drm_framebuffer *fb; |
1208 | struct drm_crtc *tmp; | |
b0d12325 DV |
1209 | int ret; |
1210 | ||
5cef29aa DV |
1211 | /* |
1212 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
1213 | * connectors from it), hence we need to refcount the fbs across all | |
1214 | * crtcs. Atomic modeset will have saner semantics ... | |
1215 | */ | |
e4f62546 | 1216 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 1217 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 1218 | |
b0d12325 | 1219 | fb = set->fb; |
2d13b679 | 1220 | |
b0d12325 DV |
1221 | ret = crtc->funcs->set_config(set); |
1222 | if (ret == 0) { | |
e13161af | 1223 | crtc->primary->crtc = crtc; |
0fe27f06 | 1224 | crtc->primary->fb = fb; |
5cef29aa | 1225 | } |
cc85e121 | 1226 | |
e4f62546 | 1227 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
1228 | if (tmp->primary->fb) |
1229 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
1230 | if (tmp->primary->old_fb) |
1231 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
1232 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
1233 | } |
1234 | ||
1235 | return ret; | |
2d13b679 DV |
1236 | } |
1237 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
1238 | ||
ecb7e16b GP |
1239 | /** |
1240 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
1241 | * @mode: mode to query | |
1242 | * @hdisplay: hdisplay value to fill in | |
1243 | * @vdisplay: vdisplay value to fill in | |
1244 | * | |
1245 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
1246 | * the appropriate layout. | |
1247 | */ | |
1248 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
1249 | int *hdisplay, int *vdisplay) | |
1250 | { | |
1251 | struct drm_display_mode adjusted; | |
1252 | ||
1253 | drm_mode_copy(&adjusted, mode); | |
1254 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
1255 | *hdisplay = adjusted.crtc_hdisplay; | |
1256 | *vdisplay = adjusted.crtc_vdisplay; | |
1257 | } | |
1258 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
1259 | ||
af93629d MR |
1260 | /** |
1261 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
1262 | * CRTC viewport | |
1263 | * @crtc: CRTC that framebuffer will be displayed on | |
1264 | * @x: x panning | |
1265 | * @y: y panning | |
1266 | * @mode: mode that framebuffer will be displayed under | |
1267 | * @fb: framebuffer to check size of | |
c11e9283 | 1268 | */ |
af93629d MR |
1269 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
1270 | int x, int y, | |
1271 | const struct drm_display_mode *mode, | |
1272 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
1273 | |
1274 | { | |
1275 | int hdisplay, vdisplay; | |
1276 | ||
ecb7e16b | 1277 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 1278 | |
33e0be63 | 1279 | if (crtc->state && |
31ad61e4 JL |
1280 | crtc->primary->state->rotation & (DRM_ROTATE_90 | |
1281 | DRM_ROTATE_270)) | |
c11e9283 DL |
1282 | swap(hdisplay, vdisplay); |
1283 | ||
ce8d9ecc VS |
1284 | return check_src_coords(x << 16, y << 16, |
1285 | hdisplay << 16, vdisplay << 16, fb); | |
c11e9283 | 1286 | } |
af93629d | 1287 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 1288 | |
f453ba04 DA |
1289 | /** |
1290 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
1291 | * @dev: drm device for the ioctl |
1292 | * @data: data pointer for the ioctl | |
1293 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1294 | * |
f453ba04 DA |
1295 | * Build a new CRTC configuration based on user request. |
1296 | * | |
1297 | * Called by the user via ioctl. | |
1298 | * | |
c8e32cc1 | 1299 | * Returns: |
1a498633 | 1300 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1301 | */ |
1302 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
1303 | struct drm_file *file_priv) | |
1304 | { | |
1305 | struct drm_mode_config *config = &dev->mode_config; | |
1306 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 1307 | struct drm_crtc *crtc; |
f453ba04 DA |
1308 | struct drm_connector **connector_set = NULL, *connector; |
1309 | struct drm_framebuffer *fb = NULL; | |
1310 | struct drm_display_mode *mode = NULL; | |
1311 | struct drm_mode_set set; | |
1312 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 1313 | int ret; |
f453ba04 DA |
1314 | int i; |
1315 | ||
fb3b06c8 DA |
1316 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1317 | return -EINVAL; | |
1318 | ||
01447e9f ZJ |
1319 | /* |
1320 | * Universal plane src offsets are only 16.16, prevent havoc for | |
1321 | * drivers using universal plane code internally. | |
1322 | */ | |
1323 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
1324 | return -ERANGE; |
1325 | ||
84849903 | 1326 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
1327 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
1328 | if (!crtc) { | |
58367ed6 | 1329 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 1330 | ret = -ENOENT; |
f453ba04 DA |
1331 | goto out; |
1332 | } | |
fa3ab4c2 | 1333 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 DA |
1334 | |
1335 | if (crtc_req->mode_valid) { | |
1336 | /* If we have a mode we need a framebuffer. */ | |
1337 | /* If we pass -1, set the mode with the currently bound fb */ | |
1338 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 1339 | if (!crtc->primary->fb) { |
6653cc8d VS |
1340 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
1341 | ret = -EINVAL; | |
1342 | goto out; | |
f453ba04 | 1343 | } |
f4510a27 | 1344 | fb = crtc->primary->fb; |
b0d12325 DV |
1345 | /* Make refcounting symmetric with the lookup path. */ |
1346 | drm_framebuffer_reference(fb); | |
f453ba04 | 1347 | } else { |
786b99ed DV |
1348 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
1349 | if (!fb) { | |
58367ed6 ZY |
1350 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
1351 | crtc_req->fb_id); | |
37c4e705 | 1352 | ret = -ENOENT; |
f453ba04 DA |
1353 | goto out; |
1354 | } | |
f453ba04 DA |
1355 | } |
1356 | ||
1357 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
1358 | if (!mode) { |
1359 | ret = -ENOMEM; | |
1360 | goto out; | |
1361 | } | |
1362 | ||
934a8a89 | 1363 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
1364 | if (ret) { |
1365 | DRM_DEBUG_KMS("Invalid mode\n"); | |
1366 | goto out; | |
1367 | } | |
1368 | ||
7eb5f302 LP |
1369 | /* |
1370 | * Check whether the primary plane supports the fb pixel format. | |
1371 | * Drivers not implementing the universal planes API use a | |
1372 | * default formats list provided by the DRM core which doesn't | |
1373 | * match real hardware capabilities. Skip the check in that | |
1374 | * case. | |
1375 | */ | |
1376 | if (!crtc->primary->format_default) { | |
1377 | ret = drm_plane_check_pixel_format(crtc->primary, | |
1378 | fb->pixel_format); | |
1379 | if (ret) { | |
d3828147 | 1380 | char *format_name = drm_get_format_name(fb->pixel_format); |
90844f00 EE |
1381 | DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name); |
1382 | kfree(format_name); | |
7eb5f302 LP |
1383 | goto out; |
1384 | } | |
1385 | } | |
1386 | ||
c11e9283 DL |
1387 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
1388 | mode, fb); | |
1389 | if (ret) | |
5f61bb42 | 1390 | goto out; |
c11e9283 | 1391 | |
f453ba04 DA |
1392 | } |
1393 | ||
1394 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 1395 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
1396 | ret = -EINVAL; |
1397 | goto out; | |
1398 | } | |
1399 | ||
7781de74 | 1400 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 1401 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
1402 | crtc_req->count_connectors); |
1403 | ret = -EINVAL; | |
1404 | goto out; | |
1405 | } | |
1406 | ||
1407 | if (crtc_req->count_connectors > 0) { | |
1408 | u32 out_id; | |
1409 | ||
1410 | /* Avoid unbounded kernel memory allocation */ | |
1411 | if (crtc_req->count_connectors > config->num_connector) { | |
1412 | ret = -EINVAL; | |
1413 | goto out; | |
1414 | } | |
1415 | ||
2f6c5389 TR |
1416 | connector_set = kmalloc_array(crtc_req->count_connectors, |
1417 | sizeof(struct drm_connector *), | |
1418 | GFP_KERNEL); | |
f453ba04 DA |
1419 | if (!connector_set) { |
1420 | ret = -ENOMEM; | |
1421 | goto out; | |
1422 | } | |
1423 | ||
1424 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 1425 | connector_set[i] = NULL; |
81f6c7f8 | 1426 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
1427 | if (get_user(out_id, &set_connectors_ptr[i])) { |
1428 | ret = -EFAULT; | |
1429 | goto out; | |
1430 | } | |
1431 | ||
b164d31f | 1432 | connector = drm_connector_lookup(dev, out_id); |
a2b34e22 | 1433 | if (!connector) { |
58367ed6 ZY |
1434 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
1435 | out_id); | |
f27657f2 | 1436 | ret = -ENOENT; |
f453ba04 DA |
1437 | goto out; |
1438 | } | |
9440106b JG |
1439 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1440 | connector->base.id, | |
25933820 | 1441 | connector->name); |
f453ba04 DA |
1442 | |
1443 | connector_set[i] = connector; | |
1444 | } | |
1445 | } | |
1446 | ||
1447 | set.crtc = crtc; | |
1448 | set.x = crtc_req->x; | |
1449 | set.y = crtc_req->y; | |
1450 | set.mode = mode; | |
1451 | set.connectors = connector_set; | |
1452 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 1453 | set.fb = fb; |
2d13b679 | 1454 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
1455 | |
1456 | out: | |
b0d12325 DV |
1457 | if (fb) |
1458 | drm_framebuffer_unreference(fb); | |
1459 | ||
b164d31f DA |
1460 | if (connector_set) { |
1461 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
1462 | if (connector_set[i]) | |
1463 | drm_connector_unreference(connector_set[i]); | |
1464 | } | |
1465 | } | |
f453ba04 | 1466 | kfree(connector_set); |
ee34ab5b | 1467 | drm_mode_destroy(dev, mode); |
84849903 | 1468 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1469 | return ret; |
1470 | } | |
1471 | ||
161d0dc1 MR |
1472 | /** |
1473 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
1474 | * universal plane handler call | |
1475 | * @crtc: crtc to update cursor for | |
1476 | * @req: data pointer for the ioctl | |
1477 | * @file_priv: drm file for the ioctl call | |
1478 | * | |
1479 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
1480 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
1481 | * wrap the native buffer handle in a drm_framebuffer. | |
1482 | * | |
1483 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
1484 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
1485 | * directly in cases where the hardware can support other buffer settings and | |
1486 | * userspace wants to make use of these capabilities. | |
1487 | * | |
1488 | * Returns: | |
1a498633 | 1489 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
1490 | */ |
1491 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
1492 | struct drm_mode_cursor2 *req, | |
1493 | struct drm_file *file_priv) | |
1494 | { | |
1495 | struct drm_device *dev = crtc->dev; | |
1496 | struct drm_framebuffer *fb = NULL; | |
1497 | struct drm_mode_fb_cmd2 fbreq = { | |
1498 | .width = req->width, | |
1499 | .height = req->height, | |
1500 | .pixel_format = DRM_FORMAT_ARGB8888, | |
1501 | .pitches = { req->width * 4 }, | |
1502 | .handles = { req->handle }, | |
1503 | }; | |
1504 | int32_t crtc_x, crtc_y; | |
1505 | uint32_t crtc_w = 0, crtc_h = 0; | |
1506 | uint32_t src_w = 0, src_h = 0; | |
1507 | int ret = 0; | |
1508 | ||
1509 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 1510 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
1511 | |
1512 | /* | |
1513 | * Obtain fb we'll be using (either new or existing) and take an extra | |
1514 | * reference to it if fb != null. setplane will take care of dropping | |
1515 | * the reference if the plane update fails. | |
1516 | */ | |
1517 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
1518 | if (req->handle) { | |
7520a277 | 1519 | fb = drm_internal_framebuffer_create(dev, &fbreq, file_priv); |
161d0dc1 MR |
1520 | if (IS_ERR(fb)) { |
1521 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
1522 | return PTR_ERR(fb); | |
1523 | } | |
dd546591 GH |
1524 | fb->hot_x = req->hot_x; |
1525 | fb->hot_y = req->hot_y; | |
161d0dc1 MR |
1526 | } else { |
1527 | fb = NULL; | |
1528 | } | |
1529 | } else { | |
161d0dc1 MR |
1530 | fb = crtc->cursor->fb; |
1531 | if (fb) | |
1532 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
1533 | } |
1534 | ||
1535 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
1536 | crtc_x = req->x; | |
1537 | crtc_y = req->y; | |
1538 | } else { | |
1539 | crtc_x = crtc->cursor_x; | |
1540 | crtc_y = crtc->cursor_y; | |
1541 | } | |
1542 | ||
1543 | if (fb) { | |
1544 | crtc_w = fb->width; | |
1545 | crtc_h = fb->height; | |
1546 | src_w = fb->width << 16; | |
1547 | src_h = fb->height << 16; | |
1548 | } | |
1549 | ||
1550 | /* | |
1551 | * setplane_internal will take care of deref'ing either the old or new | |
1552 | * framebuffer depending on success. | |
1553 | */ | |
f2b50c11 | 1554 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
1555 | crtc_x, crtc_y, crtc_w, crtc_h, |
1556 | 0, 0, src_w, src_h); | |
e2f5d2ea | 1557 | |
161d0dc1 MR |
1558 | /* Update successful; save new cursor position, if necessary */ |
1559 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
1560 | crtc->cursor_x = req->x; | |
1561 | crtc->cursor_y = req->y; | |
e2f5d2ea DS |
1562 | } |
1563 | ||
e2f5d2ea DS |
1564 | return ret; |
1565 | } | |
1566 | ||
4c813d4d DA |
1567 | static int drm_mode_cursor_common(struct drm_device *dev, |
1568 | struct drm_mode_cursor2 *req, | |
1569 | struct drm_file *file_priv) | |
e2f5d2ea | 1570 | { |
f453ba04 | 1571 | struct drm_crtc *crtc; |
e2f5d2ea DS |
1572 | int ret = 0; |
1573 | ||
1574 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1575 | return -EINVAL; | |
1576 | ||
7c4eaca4 | 1577 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 1578 | return -EINVAL; |
e2f5d2ea | 1579 | |
a2b34e22 RC |
1580 | crtc = drm_crtc_find(dev, req->crtc_id); |
1581 | if (!crtc) { | |
58367ed6 | 1582 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 1583 | return -ENOENT; |
e2f5d2ea DS |
1584 | } |
1585 | ||
161d0dc1 MR |
1586 | /* |
1587 | * If this crtc has a universal cursor plane, call that plane's update | |
1588 | * handler rather than using legacy cursor handlers. | |
1589 | */ | |
4d02e2de | 1590 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
1591 | if (crtc->cursor) { |
1592 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
1593 | goto out; | |
e2f5d2ea DS |
1594 | } |
1595 | ||
f453ba04 | 1596 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 1597 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
1598 | ret = -ENXIO; |
1599 | goto out; | |
1600 | } | |
1601 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
1602 | if (crtc->funcs->cursor_set2) |
1603 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
1604 | req->width, req->height, req->hot_x, req->hot_y); | |
1605 | else | |
1606 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
1607 | req->width, req->height); | |
f453ba04 | 1608 | } |
e2f5d2ea | 1609 | |
f453ba04 DA |
1610 | if (req->flags & DRM_MODE_CURSOR_MOVE) { |
1611 | if (crtc->funcs->cursor_move) { | |
1612 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
1613 | } else { | |
f453ba04 DA |
1614 | ret = -EFAULT; |
1615 | goto out; | |
1616 | } | |
1617 | } | |
1618 | out: | |
d059f652 | 1619 | drm_modeset_unlock_crtc(crtc); |
152ef5fa | 1620 | |
e2f5d2ea | 1621 | return ret; |
43aba7eb | 1622 | |
43aba7eb | 1623 | } |
43aba7eb | 1624 | |
6f134d7b | 1625 | |
c8e32cc1 | 1626 | /** |
c8e32cc1 DV |
1627 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration |
1628 | * @dev: drm device for the ioctl | |
1629 | * @data: data pointer for the ioctl | |
1630 | * @file_priv: drm file for the ioctl call | |
1631 | * | |
1632 | * Set the cursor configuration based on user request. | |
c8e32cc1 | 1633 | * |
c8e32cc1 | 1634 | * Called by the user via ioctl. |
c8e32cc1 DV |
1635 | * |
1636 | * Returns: | |
1a498633 | 1637 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1638 | */ |
4c813d4d | 1639 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 1640 | void *data, struct drm_file *file_priv) |
26a34815 | 1641 | { |
4c813d4d DA |
1642 | struct drm_mode_cursor *req = data; |
1643 | struct drm_mode_cursor2 new_req; | |
26a34815 | 1644 | |
4c813d4d DA |
1645 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); |
1646 | new_req.hot_x = new_req.hot_y = 0; | |
3843e71f | 1647 | |
4c813d4d | 1648 | return drm_mode_cursor_common(dev, &new_req, file_priv); |
3843e71f RC |
1649 | } |
1650 | ||
c8e32cc1 | 1651 | /** |
c8e32cc1 DV |
1652 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration |
1653 | * @dev: drm device for the ioctl | |
1654 | * @data: data pointer for the ioctl | |
1655 | * @file_priv: drm file for the ioctl call | |
c8e32cc1 | 1656 | * |
c8e32cc1 DV |
1657 | * Set the cursor configuration based on user request. This implements the 2nd |
1658 | * version of the cursor ioctl, which allows userspace to additionally specify | |
1659 | * the hotspot of the pointer. | |
c8e32cc1 DV |
1660 | * |
1661 | * Called by the user via ioctl. | |
1662 | * | |
1663 | * Returns: | |
1a498633 | 1664 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1665 | */ |
4c813d4d DA |
1666 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
1667 | void *data, struct drm_file *file_priv) | |
c543188a | 1668 | { |
4c813d4d | 1669 | struct drm_mode_cursor2 *req = data; |
c543188a | 1670 | |
4c813d4d | 1671 | return drm_mode_cursor_common(dev, req, file_priv); |
c543188a PZ |
1672 | } |
1673 | ||
949619f3 DV |
1674 | int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
1675 | struct drm_property *property, | |
1676 | uint64_t value) | |
bffd9de0 PZ |
1677 | { |
1678 | int ret = -EINVAL; | |
1679 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
1680 | ||
1681 | if (crtc->funcs->set_property) | |
1682 | ret = crtc->funcs->set_property(crtc, property, value); | |
1683 | if (!ret) | |
1684 | drm_object_property_set_value(obj, property, value); | |
1685 | ||
1686 | return ret; | |
1687 | } | |
1688 | ||
3a5f87c2 TW |
1689 | /** |
1690 | * drm_mode_plane_set_obj_prop - set the value of a property | |
1691 | * @plane: drm plane object to set property value for | |
1692 | * @property: property to set | |
1693 | * @value: value the property should be set to | |
1694 | * | |
1695 | * This functions sets a given property on a given plane object. This function | |
1696 | * calls the driver's ->set_property callback and changes the software state of | |
1697 | * the property if the callback succeeds. | |
1698 | * | |
1699 | * Returns: | |
1700 | * Zero on success, error code on failure. | |
1701 | */ | |
1702 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
1703 | struct drm_property *property, | |
1704 | uint64_t value) | |
4d93914a RC |
1705 | { |
1706 | int ret = -EINVAL; | |
3a5f87c2 | 1707 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
1708 | |
1709 | if (plane->funcs->set_property) | |
1710 | ret = plane->funcs->set_property(plane, property, value); | |
1711 | if (!ret) | |
1712 | drm_object_property_set_value(obj, property, value); | |
1713 | ||
1714 | return ret; | |
1715 | } | |
3a5f87c2 | 1716 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 1717 | |
c8e32cc1 DV |
1718 | /** |
1719 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
1720 | * @crtc: CRTC to set the gamma table size for | |
1721 | * @gamma_size: size of the gamma table | |
1722 | * | |
1723 | * Drivers which support gamma tables should set this to the supported gamma | |
1724 | * table size when initializing the CRTC. Currently the drm core only supports a | |
1725 | * fixed gamma table size. | |
1726 | * | |
1727 | * Returns: | |
1a498633 | 1728 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1729 | */ |
4cae5b84 | 1730 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 1731 | int gamma_size) |
f453ba04 | 1732 | { |
cf48e292 DV |
1733 | uint16_t *r_base, *g_base, *b_base; |
1734 | int i; | |
1735 | ||
f453ba04 DA |
1736 | crtc->gamma_size = gamma_size; |
1737 | ||
bd3f0ff9 TR |
1738 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
1739 | GFP_KERNEL); | |
f453ba04 DA |
1740 | if (!crtc->gamma_store) { |
1741 | crtc->gamma_size = 0; | |
4cae5b84 | 1742 | return -ENOMEM; |
f453ba04 DA |
1743 | } |
1744 | ||
cf48e292 DV |
1745 | r_base = crtc->gamma_store; |
1746 | g_base = r_base + gamma_size; | |
1747 | b_base = g_base + gamma_size; | |
1748 | for (i = 0; i < gamma_size; i++) { | |
1749 | r_base[i] = i << 8; | |
1750 | g_base[i] = i << 8; | |
1751 | b_base[i] = i << 8; | |
1752 | } | |
1753 | ||
1754 | ||
4cae5b84 | 1755 | return 0; |
f453ba04 DA |
1756 | } |
1757 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
1758 | ||
c8e32cc1 DV |
1759 | /** |
1760 | * drm_mode_gamma_set_ioctl - set the gamma table | |
1761 | * @dev: DRM device | |
1762 | * @data: ioctl data | |
1763 | * @file_priv: DRM file info | |
1764 | * | |
1765 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
1766 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
1767 | * | |
1768 | * Called by the user via ioctl. | |
1769 | * | |
1770 | * Returns: | |
1a498633 | 1771 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1772 | */ |
f453ba04 DA |
1773 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
1774 | void *data, struct drm_file *file_priv) | |
1775 | { | |
1776 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
1777 | struct drm_crtc *crtc; |
1778 | void *r_base, *g_base, *b_base; | |
1779 | int size; | |
1780 | int ret = 0; | |
1781 | ||
fb3b06c8 DA |
1782 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1783 | return -EINVAL; | |
1784 | ||
84849903 | 1785 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
1786 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
1787 | if (!crtc) { | |
f27657f2 | 1788 | ret = -ENOENT; |
f453ba04 DA |
1789 | goto out; |
1790 | } | |
f453ba04 | 1791 | |
ebe0f244 LP |
1792 | if (crtc->funcs->gamma_set == NULL) { |
1793 | ret = -ENOSYS; | |
1794 | goto out; | |
1795 | } | |
1796 | ||
f453ba04 DA |
1797 | /* memcpy into gamma store */ |
1798 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
1799 | ret = -EINVAL; | |
1800 | goto out; | |
1801 | } | |
1802 | ||
1803 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
1804 | r_base = crtc->gamma_store; | |
1805 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
1806 | ret = -EFAULT; | |
1807 | goto out; | |
1808 | } | |
1809 | ||
1810 | g_base = r_base + size; | |
1811 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
1812 | ret = -EFAULT; | |
1813 | goto out; | |
1814 | } | |
1815 | ||
1816 | b_base = g_base + size; | |
1817 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
1818 | ret = -EFAULT; | |
1819 | goto out; | |
1820 | } | |
1821 | ||
7ea77283 | 1822 | ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); |
f453ba04 DA |
1823 | |
1824 | out: | |
84849903 | 1825 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1826 | return ret; |
1827 | ||
1828 | } | |
1829 | ||
c8e32cc1 DV |
1830 | /** |
1831 | * drm_mode_gamma_get_ioctl - get the gamma table | |
1832 | * @dev: DRM device | |
1833 | * @data: ioctl data | |
1834 | * @file_priv: DRM file info | |
1835 | * | |
1836 | * Copy the current gamma table into the storage provided. This also provides | |
1837 | * the gamma table size the driver expects, which can be used to size the | |
1838 | * allocated storage. | |
1839 | * | |
1840 | * Called by the user via ioctl. | |
1841 | * | |
1842 | * Returns: | |
1a498633 | 1843 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1844 | */ |
f453ba04 DA |
1845 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
1846 | void *data, struct drm_file *file_priv) | |
1847 | { | |
1848 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
1849 | struct drm_crtc *crtc; |
1850 | void *r_base, *g_base, *b_base; | |
1851 | int size; | |
1852 | int ret = 0; | |
1853 | ||
fb3b06c8 DA |
1854 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1855 | return -EINVAL; | |
1856 | ||
84849903 | 1857 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
1858 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
1859 | if (!crtc) { | |
f27657f2 | 1860 | ret = -ENOENT; |
f453ba04 DA |
1861 | goto out; |
1862 | } | |
f453ba04 DA |
1863 | |
1864 | /* memcpy into gamma store */ | |
1865 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
1866 | ret = -EINVAL; | |
1867 | goto out; | |
1868 | } | |
1869 | ||
1870 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
1871 | r_base = crtc->gamma_store; | |
1872 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
1873 | ret = -EFAULT; | |
1874 | goto out; | |
1875 | } | |
1876 | ||
1877 | g_base = r_base + size; | |
1878 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
1879 | ret = -EFAULT; | |
1880 | goto out; | |
1881 | } | |
1882 | ||
1883 | b_base = g_base + size; | |
1884 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
1885 | ret = -EFAULT; | |
1886 | goto out; | |
1887 | } | |
1888 | out: | |
84849903 | 1889 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1890 | return ret; |
1891 | } | |
d91d8a3f | 1892 | |
c8e32cc1 DV |
1893 | /** |
1894 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
1895 | * @dev: DRM device | |
1896 | * @data: ioctl data | |
1897 | * @file_priv: DRM file info | |
1898 | * | |
1899 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
1900 | * Optionally a drm event is generated to signal the completion of the event. | |
1901 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
1902 | * properties (including driver specific metadata like tiling layout) will work, | |
1903 | * but some drivers support e.g. pixel format changes through the pageflip | |
1904 | * ioctl. | |
1905 | * | |
1906 | * Called by the user via ioctl. | |
1907 | * | |
1908 | * Returns: | |
1a498633 | 1909 | * Zero on success, negative errno on failure. |
c8e32cc1 | 1910 | */ |
d91d8a3f KH |
1911 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
1912 | void *data, struct drm_file *file_priv) | |
1913 | { | |
f837297a | 1914 | struct drm_mode_crtc_page_flip_target *page_flip = data; |
d91d8a3f | 1915 | struct drm_crtc *crtc; |
3d30a59b | 1916 | struct drm_framebuffer *fb = NULL; |
d91d8a3f | 1917 | struct drm_pending_vblank_event *e = NULL; |
f837297a | 1918 | u32 target_vblank = page_flip->sequence; |
d91d8a3f KH |
1919 | int ret = -EINVAL; |
1920 | ||
6f00975c DV |
1921 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1922 | return -EINVAL; | |
1923 | ||
f837297a MD |
1924 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS) |
1925 | return -EINVAL; | |
1926 | ||
1927 | if (page_flip->sequence != 0 && !(page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) | |
1928 | return -EINVAL; | |
1929 | ||
1930 | /* Only one of the DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags | |
1931 | * can be specified | |
1932 | */ | |
1933 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) == DRM_MODE_PAGE_FLIP_TARGET) | |
d91d8a3f KH |
1934 | return -EINVAL; |
1935 | ||
62f2104f KP |
1936 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
1937 | return -EINVAL; | |
1938 | ||
a2b34e22 RC |
1939 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
1940 | if (!crtc) | |
f27657f2 | 1941 | return -ENOENT; |
d91d8a3f | 1942 | |
c229bfbb | 1943 | if (crtc->funcs->page_flip_target) { |
f837297a | 1944 | u32 current_vblank; |
c229bfbb MD |
1945 | int r; |
1946 | ||
1947 | r = drm_crtc_vblank_get(crtc); | |
1948 | if (r) | |
1949 | return r; | |
1950 | ||
f837297a MD |
1951 | current_vblank = drm_crtc_vblank_count(crtc); |
1952 | ||
1953 | switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) { | |
1954 | case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE: | |
1955 | if ((int)(target_vblank - current_vblank) > 1) { | |
1956 | DRM_DEBUG("Invalid absolute flip target %u, " | |
1957 | "must be <= %u\n", target_vblank, | |
1958 | current_vblank + 1); | |
1959 | drm_crtc_vblank_put(crtc); | |
1960 | return -EINVAL; | |
1961 | } | |
1962 | break; | |
1963 | case DRM_MODE_PAGE_FLIP_TARGET_RELATIVE: | |
1964 | if (target_vblank != 0 && target_vblank != 1) { | |
1965 | DRM_DEBUG("Invalid relative flip target %u, " | |
1966 | "must be 0 or 1\n", target_vblank); | |
1967 | drm_crtc_vblank_put(crtc); | |
1968 | return -EINVAL; | |
1969 | } | |
1970 | target_vblank += current_vblank; | |
1971 | break; | |
1972 | default: | |
1973 | target_vblank = current_vblank + | |
1974 | !(page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC); | |
1975 | break; | |
1976 | } | |
1977 | } else if (crtc->funcs->page_flip == NULL || | |
1978 | (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET)) { | |
c229bfbb MD |
1979 | return -EINVAL; |
1980 | } | |
1981 | ||
4d02e2de | 1982 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 1983 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
1984 | /* The framebuffer is currently unbound, presumably |
1985 | * due to a hotplug event, that userspace has not | |
1986 | * yet discovered. | |
1987 | */ | |
1988 | ret = -EBUSY; | |
1989 | goto out; | |
1990 | } | |
1991 | ||
786b99ed | 1992 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
1993 | if (!fb) { |
1994 | ret = -ENOENT; | |
d91d8a3f | 1995 | goto out; |
37c4e705 | 1996 | } |
d91d8a3f | 1997 | |
2afa701d VS |
1998 | if (crtc->state) { |
1999 | const struct drm_plane_state *state = crtc->primary->state; | |
2000 | ||
2001 | ret = check_src_coords(state->src_x, state->src_y, | |
2002 | state->src_w, state->src_h, fb); | |
2003 | } else { | |
2004 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); | |
2005 | } | |
c11e9283 | 2006 | if (ret) |
5f61bb42 | 2007 | goto out; |
5f61bb42 | 2008 | |
f4510a27 | 2009 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
2010 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
2011 | ret = -EINVAL; | |
2012 | goto out; | |
2013 | } | |
2014 | ||
d91d8a3f | 2015 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
2dd500f1 DV |
2016 | e = kzalloc(sizeof *e, GFP_KERNEL); |
2017 | if (!e) { | |
2018 | ret = -ENOMEM; | |
d91d8a3f KH |
2019 | goto out; |
2020 | } | |
7bd4d7be | 2021 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 2022 | e->event.base.length = sizeof(e->event); |
d91d8a3f | 2023 | e->event.user_data = page_flip->user_data; |
2dd500f1 DV |
2024 | ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); |
2025 | if (ret) { | |
2026 | kfree(e); | |
2027 | goto out; | |
2028 | } | |
d91d8a3f KH |
2029 | } |
2030 | ||
3d30a59b | 2031 | crtc->primary->old_fb = crtc->primary->fb; |
c229bfbb MD |
2032 | if (crtc->funcs->page_flip_target) |
2033 | ret = crtc->funcs->page_flip_target(crtc, fb, e, | |
2034 | page_flip->flags, | |
2035 | target_vblank); | |
2036 | else | |
2037 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); | |
d91d8a3f | 2038 | if (ret) { |
2dd500f1 DV |
2039 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) |
2040 | drm_event_cancel_free(dev, &e->base); | |
b0d12325 | 2041 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 2042 | crtc->primary->old_fb = NULL; |
b0d12325 | 2043 | } else { |
3cb43cc0 | 2044 | crtc->primary->fb = fb; |
b0d12325 DV |
2045 | /* Unref only the old framebuffer. */ |
2046 | fb = NULL; | |
d91d8a3f KH |
2047 | } |
2048 | ||
2049 | out: | |
dec90ea1 | 2050 | if (ret && crtc->funcs->page_flip_target) |
c229bfbb | 2051 | drm_crtc_vblank_put(crtc); |
b0d12325 DV |
2052 | if (fb) |
2053 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2054 | if (crtc->primary->old_fb) |
2055 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
2056 | crtc->primary->old_fb = NULL; | |
d059f652 | 2057 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 2058 | |
d91d8a3f KH |
2059 | return ret; |
2060 | } | |
eb033556 | 2061 | |
c8e32cc1 DV |
2062 | /** |
2063 | * drm_mode_config_reset - call ->reset callbacks | |
2064 | * @dev: drm device | |
2065 | * | |
2066 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
2067 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
2068 | * reset hardware and software state. | |
2069 | */ | |
eb033556 CW |
2070 | void drm_mode_config_reset(struct drm_device *dev) |
2071 | { | |
2072 | struct drm_crtc *crtc; | |
2a0d7cfd | 2073 | struct drm_plane *plane; |
eb033556 CW |
2074 | struct drm_encoder *encoder; |
2075 | struct drm_connector *connector; | |
2076 | ||
e4f62546 | 2077 | drm_for_each_plane(plane, dev) |
2a0d7cfd DV |
2078 | if (plane->funcs->reset) |
2079 | plane->funcs->reset(plane); | |
2080 | ||
e4f62546 | 2081 | drm_for_each_crtc(crtc, dev) |
eb033556 CW |
2082 | if (crtc->funcs->reset) |
2083 | crtc->funcs->reset(crtc); | |
2084 | ||
e4f62546 | 2085 | drm_for_each_encoder(encoder, dev) |
eb033556 CW |
2086 | if (encoder->funcs->reset) |
2087 | encoder->funcs->reset(encoder); | |
2088 | ||
f8c2ba31 | 2089 | mutex_lock(&dev->mode_config.mutex); |
4eebf60b | 2090 | drm_for_each_connector(connector, dev) |
eb033556 CW |
2091 | if (connector->funcs->reset) |
2092 | connector->funcs->reset(connector); | |
f8c2ba31 | 2093 | mutex_unlock(&dev->mode_config.mutex); |
eb033556 CW |
2094 | } |
2095 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 2096 | |
c8e32cc1 DV |
2097 | /** |
2098 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
2099 | * @dev: DRM device | |
2100 | * @data: ioctl data | |
2101 | * @file_priv: DRM file info | |
2102 | * | |
2103 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
2104 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
2105 | * handle can then be wrapped up into a framebuffer modeset object. | |
2106 | * | |
2107 | * Note that userspace is not allowed to use such objects for render | |
2108 | * acceleration - drivers must create their own private ioctls for such a use | |
2109 | * case. | |
2110 | * | |
2111 | * Called by the user via ioctl. | |
2112 | * | |
2113 | * Returns: | |
1a498633 | 2114 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2115 | */ |
ff72145b DA |
2116 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
2117 | void *data, struct drm_file *file_priv) | |
2118 | { | |
2119 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 2120 | u32 cpp, stride, size; |
ff72145b DA |
2121 | |
2122 | if (!dev->driver->dumb_create) | |
2123 | return -ENOSYS; | |
b28cd41f DH |
2124 | if (!args->width || !args->height || !args->bpp) |
2125 | return -EINVAL; | |
2126 | ||
2127 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 2128 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 2129 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 2130 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
2131 | return -EINVAL; |
2132 | stride = cpp * args->width; | |
2133 | if (args->height > 0xffffffffU / stride) | |
2134 | return -EINVAL; | |
2135 | ||
2136 | /* test for wrap-around */ | |
2137 | size = args->height * stride; | |
2138 | if (PAGE_ALIGN(size) == 0) | |
2139 | return -EINVAL; | |
2140 | ||
f6085952 TR |
2141 | /* |
2142 | * handle, pitch and size are output parameters. Zero them out to | |
2143 | * prevent drivers from accidentally using uninitialized data. Since | |
2144 | * not all existing userspace is clearing these fields properly we | |
2145 | * cannot reject IOCTL with garbage in them. | |
2146 | */ | |
2147 | args->handle = 0; | |
2148 | args->pitch = 0; | |
2149 | args->size = 0; | |
2150 | ||
ff72145b DA |
2151 | return dev->driver->dumb_create(file_priv, dev, args); |
2152 | } | |
2153 | ||
c8e32cc1 DV |
2154 | /** |
2155 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
2156 | * @dev: DRM device | |
2157 | * @data: ioctl data | |
2158 | * @file_priv: DRM file info | |
2159 | * | |
2160 | * Allocate an offset in the drm device node's address space to be able to | |
2161 | * memory map a dumb buffer. | |
2162 | * | |
2163 | * Called by the user via ioctl. | |
2164 | * | |
2165 | * Returns: | |
1a498633 | 2166 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2167 | */ |
ff72145b DA |
2168 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
2169 | void *data, struct drm_file *file_priv) | |
2170 | { | |
2171 | struct drm_mode_map_dumb *args = data; | |
2172 | ||
2173 | /* call driver ioctl to get mmap offset */ | |
2174 | if (!dev->driver->dumb_map_offset) | |
2175 | return -ENOSYS; | |
2176 | ||
2177 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
2178 | } | |
2179 | ||
c8e32cc1 DV |
2180 | /** |
2181 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
2182 | * @dev: DRM device | |
2183 | * @data: ioctl data | |
2184 | * @file_priv: DRM file info | |
2185 | * | |
2186 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
2187 | * Since buffer objects must be reference counted in the kernel a buffer object | |
2188 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
2189 | * | |
2190 | * Called by the user via ioctl. | |
2191 | * | |
2192 | * Returns: | |
1a498633 | 2193 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2194 | */ |
ff72145b DA |
2195 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
2196 | void *data, struct drm_file *file_priv) | |
2197 | { | |
2198 | struct drm_mode_destroy_dumb *args = data; | |
2199 | ||
2200 | if (!dev->driver->dumb_destroy) | |
2201 | return -ENOSYS; | |
2202 | ||
2203 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
2204 | } | |
248dbc23 | 2205 | |
3c9855f6 VS |
2206 | /** |
2207 | * drm_rotation_simplify() - Try to simplify the rotation | |
2208 | * @rotation: Rotation to be simplified | |
2209 | * @supported_rotations: Supported rotations | |
2210 | * | |
2211 | * Attempt to simplify the rotation to a form that is supported. | |
2212 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
2213 | * one could call this function like this: | |
2214 | * | |
31ad61e4 JL |
2215 | * drm_rotation_simplify(rotation, DRM_ROTATE_0 | |
2216 | * DRM_ROTATE_90 | DRM_ROTATE_180 | | |
2217 | * DRM_ROTATE_270 | DRM_REFLECT_Y); | |
3c9855f6 VS |
2218 | * |
2219 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
2220 | * transforms the hardware supports, this function may not | |
2221 | * be able to produce a supported transform, so the caller should | |
2222 | * check the result afterwards. | |
2223 | */ | |
2224 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
2225 | unsigned int supported_rotations) | |
2226 | { | |
2227 | if (rotation & ~supported_rotations) { | |
31ad61e4 | 2228 | rotation ^= DRM_REFLECT_X | DRM_REFLECT_Y; |
14152c8d JL |
2229 | rotation = (rotation & DRM_REFLECT_MASK) | |
2230 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); | |
3c9855f6 VS |
2231 | } |
2232 | ||
2233 | return rotation; | |
2234 | } | |
2235 | EXPORT_SYMBOL(drm_rotation_simplify); | |
2236 | ||
87d24fc3 LP |
2237 | /** |
2238 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
2239 | * @dev: DRM device | |
2240 | * | |
2241 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
2242 | * configuration of @dev. | |
2243 | * | |
2244 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
2245 | * problem, since this should happen single threaded at init time. It is the | |
2246 | * driver's problem to ensure this guarantee. | |
2247 | * | |
2248 | */ | |
2249 | void drm_mode_config_init(struct drm_device *dev) | |
2250 | { | |
2251 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 2252 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
2253 | mutex_init(&dev->mode_config.idr_mutex); |
2254 | mutex_init(&dev->mode_config.fb_lock); | |
8fb6e7a5 | 2255 | mutex_init(&dev->mode_config.blob_lock); |
87d24fc3 LP |
2256 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
2257 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
2258 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
2259 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
2260 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
2261 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
2262 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
2263 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 2264 | idr_init(&dev->mode_config.tile_idr); |
5fff80bb | 2265 | ida_init(&dev->mode_config.connector_ida); |
87d24fc3 LP |
2266 | |
2267 | drm_modeset_lock_all(dev); | |
6b4959f4 | 2268 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
2269 | drm_modeset_unlock_all(dev); |
2270 | ||
2271 | /* Just to be sure */ | |
2272 | dev->mode_config.num_fb = 0; | |
2273 | dev->mode_config.num_connector = 0; | |
2274 | dev->mode_config.num_crtc = 0; | |
2275 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
2276 | dev->mode_config.num_overlay_plane = 0; |
2277 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
2278 | } |
2279 | EXPORT_SYMBOL(drm_mode_config_init); | |
2280 | ||
2281 | /** | |
2282 | * drm_mode_config_cleanup - free up DRM mode_config info | |
2283 | * @dev: DRM device | |
2284 | * | |
2285 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
2286 | * free up the framebuffers and associated buffer objects. | |
2287 | * | |
2288 | * Note that since this /should/ happen single-threaded at driver/device | |
2289 | * teardown time, no locking is required. It's the driver's job to ensure that | |
2290 | * this guarantee actually holds true. | |
2291 | * | |
2292 | * FIXME: cleanup any dangling user buffer objects too | |
2293 | */ | |
2294 | void drm_mode_config_cleanup(struct drm_device *dev) | |
2295 | { | |
2296 | struct drm_connector *connector, *ot; | |
2297 | struct drm_crtc *crtc, *ct; | |
2298 | struct drm_encoder *encoder, *enct; | |
2299 | struct drm_framebuffer *fb, *fbt; | |
2300 | struct drm_property *property, *pt; | |
2301 | struct drm_property_blob *blob, *bt; | |
2302 | struct drm_plane *plane, *plt; | |
2303 | ||
2304 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
2305 | head) { | |
2306 | encoder->funcs->destroy(encoder); | |
2307 | } | |
2308 | ||
2309 | list_for_each_entry_safe(connector, ot, | |
2310 | &dev->mode_config.connector_list, head) { | |
2311 | connector->funcs->destroy(connector); | |
2312 | } | |
2313 | ||
2314 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
2315 | head) { | |
2316 | drm_property_destroy(dev, property); | |
2317 | } | |
2318 | ||
f35034f8 ML |
2319 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
2320 | head) { | |
2321 | plane->funcs->destroy(plane); | |
2322 | } | |
2323 | ||
2324 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
2325 | crtc->funcs->destroy(crtc); | |
2326 | } | |
2327 | ||
87d24fc3 | 2328 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
e2f5d2ea | 2329 | head_global) { |
6bcacf51 | 2330 | drm_property_unreference_blob(blob); |
87d24fc3 LP |
2331 | } |
2332 | ||
2333 | /* | |
2334 | * Single-threaded teardown context, so it's not required to grab the | |
2335 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
2336 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
2337 | * | |
2338 | * Also, if there are any framebuffers left, that's a driver leak now, | |
2339 | * so politely WARN about this. | |
2340 | */ | |
2341 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
2342 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
d0f37cf6 | 2343 | drm_framebuffer_free(&fb->base.refcount); |
87d24fc3 LP |
2344 | } |
2345 | ||
5fff80bb | 2346 | ida_destroy(&dev->mode_config.connector_ida); |
138f9ebb | 2347 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 2348 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 2349 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
2350 | } |
2351 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
2352 | |
2353 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
2354 | unsigned int supported_rotations) | |
2355 | { | |
2356 | static const struct drm_prop_enum_list props[] = { | |
31ad61e4 JL |
2357 | { __builtin_ffs(DRM_ROTATE_0) - 1, "rotate-0" }, |
2358 | { __builtin_ffs(DRM_ROTATE_90) - 1, "rotate-90" }, | |
2359 | { __builtin_ffs(DRM_ROTATE_180) - 1, "rotate-180" }, | |
2360 | { __builtin_ffs(DRM_ROTATE_270) - 1, "rotate-270" }, | |
2361 | { __builtin_ffs(DRM_REFLECT_X) - 1, "reflect-x" }, | |
2362 | { __builtin_ffs(DRM_REFLECT_Y) - 1, "reflect-y" }, | |
c1df5f3c VS |
2363 | }; |
2364 | ||
2365 | return drm_property_create_bitmask(dev, 0, "rotation", | |
2366 | props, ARRAY_SIZE(props), | |
2367 | supported_rotations); | |
2368 | } | |
2369 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
2370 | |
2371 | /** | |
2372 | * DOC: Tile group | |
2373 | * | |
2374 | * Tile groups are used to represent tiled monitors with a unique | |
2375 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
2376 | * a unique 8-byte handle, we store this in a tile group, so we | |
2377 | * have a common identifier for all tiles in a monitor group. | |
2378 | */ | |
2379 | static void drm_tile_group_free(struct kref *kref) | |
2380 | { | |
2381 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
2382 | struct drm_device *dev = tg->dev; | |
2383 | mutex_lock(&dev->mode_config.idr_mutex); | |
2384 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
2385 | mutex_unlock(&dev->mode_config.idr_mutex); | |
2386 | kfree(tg); | |
2387 | } | |
2388 | ||
2389 | /** | |
2390 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
2391 | * @dev: DRM device | |
2392 | * @tg: tile group to drop reference to. | |
2393 | * | |
2394 | * drop reference to tile group and free if 0. | |
2395 | */ | |
2396 | void drm_mode_put_tile_group(struct drm_device *dev, | |
2397 | struct drm_tile_group *tg) | |
2398 | { | |
2399 | kref_put(&tg->refcount, drm_tile_group_free); | |
2400 | } | |
2401 | ||
2402 | /** | |
2403 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
2404 | * @dev: DRM device | |
2405 | * @topology: 8-bytes unique per monitor. | |
2406 | * | |
2407 | * Use the unique bytes to get a reference to an existing tile group. | |
2408 | * | |
2409 | * RETURNS: | |
2410 | * tile group or NULL if not found. | |
2411 | */ | |
2412 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
2413 | char topology[8]) | |
2414 | { | |
2415 | struct drm_tile_group *tg; | |
2416 | int id; | |
2417 | mutex_lock(&dev->mode_config.idr_mutex); | |
2418 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
2419 | if (!memcmp(tg->group_data, topology, 8)) { | |
2420 | if (!kref_get_unless_zero(&tg->refcount)) | |
2421 | tg = NULL; | |
2422 | mutex_unlock(&dev->mode_config.idr_mutex); | |
2423 | return tg; | |
2424 | } | |
2425 | } | |
2426 | mutex_unlock(&dev->mode_config.idr_mutex); | |
2427 | return NULL; | |
2428 | } | |
81ddd1bc | 2429 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
138f9ebb DA |
2430 | |
2431 | /** | |
2432 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
2433 | * @dev: DRM device | |
2434 | * @topology: 8-bytes unique per monitor. | |
2435 | * | |
2436 | * Create a tile group for the unique monitor, and get a unique | |
2437 | * identifier for the tile group. | |
2438 | * | |
2439 | * RETURNS: | |
2440 | * new tile group or error. | |
2441 | */ | |
2442 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
2443 | char topology[8]) | |
2444 | { | |
2445 | struct drm_tile_group *tg; | |
2446 | int ret; | |
2447 | ||
2448 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
2449 | if (!tg) | |
2450 | return ERR_PTR(-ENOMEM); | |
2451 | ||
2452 | kref_init(&tg->refcount); | |
2453 | memcpy(tg->group_data, topology, 8); | |
2454 | tg->dev = dev; | |
2455 | ||
2456 | mutex_lock(&dev->mode_config.idr_mutex); | |
2457 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
2458 | if (ret >= 0) { | |
2459 | tg->id = ret; | |
2460 | } else { | |
2461 | kfree(tg); | |
2462 | tg = ERR_PTR(ret); | |
2463 | } | |
2464 | ||
2465 | mutex_unlock(&dev->mode_config.idr_mutex); | |
2466 | return tg; | |
2467 | } | |
81ddd1bc | 2468 | EXPORT_SYMBOL(drm_mode_create_tile_group); |
f8ed34ac JS |
2469 | |
2470 | /** | |
2471 | * drm_crtc_enable_color_mgmt - enable color management properties | |
2472 | * @crtc: DRM CRTC | |
2473 | * @degamma_lut_size: the size of the degamma lut (before CSC) | |
2474 | * @has_ctm: whether to attach ctm_property for CSC matrix | |
2475 | * @gamma_lut_size: the size of the gamma lut (after CSC) | |
2476 | * | |
2477 | * This function lets the driver enable the color correction | |
2478 | * properties on a CRTC. This includes 3 degamma, csc and gamma | |
2479 | * properties that userspace can set and 2 size properties to inform | |
2480 | * the userspace of the lut sizes. Each of the properties are | |
2481 | * optional. The gamma and degamma properties are only attached if | |
2482 | * their size is not 0 and ctm_property is only attached if has_ctm is | |
2483 | * true. | |
2484 | */ | |
2485 | void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, | |
2486 | uint degamma_lut_size, | |
2487 | bool has_ctm, | |
2488 | uint gamma_lut_size) | |
2489 | { | |
2490 | struct drm_device *dev = crtc->dev; | |
2491 | struct drm_mode_config *config = &dev->mode_config; | |
2492 | ||
2493 | if (degamma_lut_size) { | |
2494 | drm_object_attach_property(&crtc->base, | |
2495 | config->degamma_lut_property, 0); | |
2496 | drm_object_attach_property(&crtc->base, | |
2497 | config->degamma_lut_size_property, | |
2498 | degamma_lut_size); | |
2499 | } | |
2500 | ||
2501 | if (has_ctm) | |
2502 | drm_object_attach_property(&crtc->base, | |
2503 | config->ctm_property, 0); | |
2504 | ||
2505 | if (gamma_lut_size) { | |
2506 | drm_object_attach_property(&crtc->base, | |
2507 | config->gamma_lut_property, 0); | |
2508 | drm_object_attach_property(&crtc->base, | |
2509 | config->gamma_lut_size_property, | |
2510 | gamma_lut_size); | |
2511 | } | |
2512 | } | |
2513 | EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); |