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> |
6d6003c4 | 36 | #include <linux/dma-fence.h> |
760285e7 DH |
37 | #include <drm/drmP.h> |
38 | #include <drm/drm_crtc.h> | |
39 | #include <drm/drm_edid.h> | |
40 | #include <drm/drm_fourcc.h> | |
51fd371b | 41 | #include <drm/drm_modeset_lock.h> |
88a48e29 | 42 | #include <drm/drm_atomic.h> |
3b96a0b1 | 43 | #include <drm/drm_auth.h> |
9edbf1fa | 44 | #include <drm/drm_debugfs_crc.h> |
f453ba04 | 45 | |
8bd441b2 | 46 | #include "drm_crtc_internal.h" |
67d0ec4e | 47 | #include "drm_internal.h" |
8bd441b2 | 48 | |
6a0d9528 LW |
49 | /** |
50 | * drm_crtc_force_disable - Forcibly turn off a CRTC | |
51 | * @crtc: CRTC to turn off | |
52 | * | |
53 | * Returns: | |
54 | * Zero on success, error code on failure. | |
55 | */ | |
56 | int drm_crtc_force_disable(struct drm_crtc *crtc) | |
57 | { | |
58 | struct drm_mode_set set = { | |
59 | .crtc = crtc, | |
60 | }; | |
61 | ||
62 | return drm_mode_set_config_internal(&set); | |
63 | } | |
64 | EXPORT_SYMBOL(drm_crtc_force_disable); | |
65 | ||
66 | /** | |
67 | * drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs | |
68 | * @dev: DRM device whose CRTCs to turn off | |
69 | * | |
70 | * Drivers may want to call this on unload to ensure that all displays are | |
71 | * unlit and the GPU is in a consistent, low power state. Takes modeset locks. | |
72 | * | |
73 | * Returns: | |
74 | * Zero on success, error code on failure. | |
75 | */ | |
76 | int drm_crtc_force_disable_all(struct drm_device *dev) | |
77 | { | |
78 | struct drm_crtc *crtc; | |
79 | int ret = 0; | |
80 | ||
81 | drm_modeset_lock_all(dev); | |
82 | drm_for_each_crtc(crtc, dev) | |
83 | if (crtc->enabled) { | |
84 | ret = drm_crtc_force_disable(crtc); | |
85 | if (ret) | |
86 | goto out; | |
87 | } | |
88 | out: | |
89 | drm_modeset_unlock_all(dev); | |
90 | return ret; | |
91 | } | |
92 | EXPORT_SYMBOL(drm_crtc_force_disable_all); | |
93 | ||
fa3ab4c2 VS |
94 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
95 | { | |
96 | unsigned int num = 0; | |
97 | struct drm_crtc *tmp; | |
98 | ||
99 | drm_for_each_crtc(tmp, dev) { | |
100 | num++; | |
101 | } | |
102 | ||
103 | return num; | |
104 | } | |
105 | ||
28575f16 | 106 | int drm_crtc_register_all(struct drm_device *dev) |
79190ea2 BG |
107 | { |
108 | struct drm_crtc *crtc; | |
109 | int ret = 0; | |
110 | ||
111 | drm_for_each_crtc(crtc, dev) { | |
9edbf1fa TV |
112 | if (drm_debugfs_crtc_add(crtc)) |
113 | DRM_ERROR("Failed to initialize debugfs entry for CRTC '%s'.\n", | |
114 | crtc->name); | |
115 | ||
79190ea2 BG |
116 | if (crtc->funcs->late_register) |
117 | ret = crtc->funcs->late_register(crtc); | |
118 | if (ret) | |
119 | return ret; | |
120 | } | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
28575f16 | 125 | void drm_crtc_unregister_all(struct drm_device *dev) |
79190ea2 BG |
126 | { |
127 | struct drm_crtc *crtc; | |
128 | ||
129 | drm_for_each_crtc(crtc, dev) { | |
130 | if (crtc->funcs->early_unregister) | |
131 | crtc->funcs->early_unregister(crtc); | |
9edbf1fa | 132 | drm_debugfs_crtc_remove(crtc); |
79190ea2 BG |
133 | } |
134 | } | |
135 | ||
9edbf1fa TV |
136 | static int drm_crtc_crc_init(struct drm_crtc *crtc) |
137 | { | |
138 | #ifdef CONFIG_DEBUG_FS | |
139 | spin_lock_init(&crtc->crc.lock); | |
140 | init_waitqueue_head(&crtc->crc.wq); | |
141 | crtc->crc.source = kstrdup("auto", GFP_KERNEL); | |
142 | if (!crtc->crc.source) | |
143 | return -ENOMEM; | |
144 | #endif | |
145 | return 0; | |
146 | } | |
147 | ||
148 | static void drm_crtc_crc_fini(struct drm_crtc *crtc) | |
149 | { | |
150 | #ifdef CONFIG_DEBUG_FS | |
151 | kfree(crtc->crc.source); | |
152 | #endif | |
153 | } | |
154 | ||
35f8cc3b GP |
155 | static const struct dma_fence_ops drm_crtc_fence_ops; |
156 | ||
6d6003c4 GP |
157 | static struct drm_crtc *fence_to_crtc(struct dma_fence *fence) |
158 | { | |
159 | BUG_ON(fence->ops != &drm_crtc_fence_ops); | |
160 | return container_of(fence->lock, struct drm_crtc, fence_lock); | |
161 | } | |
162 | ||
163 | static const char *drm_crtc_fence_get_driver_name(struct dma_fence *fence) | |
164 | { | |
165 | struct drm_crtc *crtc = fence_to_crtc(fence); | |
166 | ||
167 | return crtc->dev->driver->name; | |
168 | } | |
169 | ||
170 | static const char *drm_crtc_fence_get_timeline_name(struct dma_fence *fence) | |
171 | { | |
172 | struct drm_crtc *crtc = fence_to_crtc(fence); | |
173 | ||
174 | return crtc->timeline_name; | |
175 | } | |
176 | ||
177 | static bool drm_crtc_fence_enable_signaling(struct dma_fence *fence) | |
178 | { | |
179 | return true; | |
180 | } | |
181 | ||
35f8cc3b | 182 | static const struct dma_fence_ops drm_crtc_fence_ops = { |
6d6003c4 GP |
183 | .get_driver_name = drm_crtc_fence_get_driver_name, |
184 | .get_timeline_name = drm_crtc_fence_get_timeline_name, | |
185 | .enable_signaling = drm_crtc_fence_enable_signaling, | |
186 | .wait = dma_fence_default_wait, | |
187 | }; | |
188 | ||
35f8cc3b GP |
189 | struct dma_fence *drm_crtc_create_fence(struct drm_crtc *crtc) |
190 | { | |
191 | struct dma_fence *fence; | |
192 | ||
193 | fence = kzalloc(sizeof(*fence), GFP_KERNEL); | |
194 | if (!fence) | |
195 | return NULL; | |
196 | ||
197 | dma_fence_init(fence, &drm_crtc_fence_ops, &crtc->fence_lock, | |
198 | crtc->fence_context, ++crtc->fence_seqno); | |
199 | ||
200 | return fence; | |
201 | } | |
202 | ||
f453ba04 | 203 | /** |
e13161af MR |
204 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
205 | * specified primary and cursor planes. | |
f453ba04 DA |
206 | * @dev: DRM device |
207 | * @crtc: CRTC object to init | |
e13161af MR |
208 | * @primary: Primary plane for CRTC |
209 | * @cursor: Cursor plane for CRTC | |
f453ba04 | 210 | * @funcs: callbacks for the new CRTC |
f9882876 | 211 | * @name: printf style format string for the CRTC name, or NULL for default name |
f453ba04 | 212 | * |
532b3671 DV |
213 | * Inits a new object created as base part of a driver crtc object. Drivers |
214 | * should use this function instead of drm_crtc_init(), which is only provided | |
215 | * for backwards compatibility with drivers which do not yet support universal | |
216 | * planes). For really simple hardware which has only 1 plane look at | |
217 | * drm_simple_display_pipe_init() instead. | |
6bfc56aa | 218 | * |
c8e32cc1 | 219 | * Returns: |
6bfc56aa | 220 | * Zero on success, error code on failure. |
f453ba04 | 221 | */ |
e13161af MR |
222 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
223 | struct drm_plane *primary, | |
fc1d3e44 | 224 | struct drm_plane *cursor, |
f9882876 VS |
225 | const struct drm_crtc_funcs *funcs, |
226 | const char *name, ...) | |
f453ba04 | 227 | { |
51fd371b | 228 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
229 | int ret; |
230 | ||
522cf91f BG |
231 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
232 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
233 | ||
f453ba04 DA |
234 | crtc->dev = dev; |
235 | crtc->funcs = funcs; | |
236 | ||
3b24f7d6 DV |
237 | INIT_LIST_HEAD(&crtc->commit_list); |
238 | spin_lock_init(&crtc->commit_lock); | |
239 | ||
51fd371b | 240 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
241 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
242 | if (ret) | |
baf698b0 | 243 | return ret; |
f453ba04 | 244 | |
fa3ab4c2 VS |
245 | if (name) { |
246 | va_list ap; | |
247 | ||
248 | va_start(ap, name); | |
249 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | |
250 | va_end(ap); | |
251 | } else { | |
252 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", | |
253 | drm_num_crtcs(dev)); | |
254 | } | |
255 | if (!crtc->name) { | |
7c8f6d25 | 256 | drm_mode_object_unregister(dev, &crtc->base); |
fa3ab4c2 VS |
257 | return -ENOMEM; |
258 | } | |
259 | ||
6d6003c4 GP |
260 | crtc->fence_context = dma_fence_context_alloc(1); |
261 | spin_lock_init(&crtc->fence_lock); | |
262 | snprintf(crtc->timeline_name, sizeof(crtc->timeline_name), | |
263 | "CRTC:%d-%s", crtc->base.id, crtc->name); | |
264 | ||
bffd9de0 PZ |
265 | crtc->base.properties = &crtc->properties; |
266 | ||
51fd371b | 267 | list_add_tail(&crtc->head, &config->crtc_list); |
490d3d1b | 268 | crtc->index = config->num_crtc++; |
6bfc56aa | 269 | |
e13161af | 270 | crtc->primary = primary; |
fc1d3e44 | 271 | crtc->cursor = cursor; |
7abc7d47 | 272 | if (primary && !primary->possible_crtcs) |
e13161af | 273 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); |
7abc7d47 | 274 | if (cursor && !cursor->possible_crtcs) |
fc1d3e44 | 275 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); |
e13161af | 276 | |
9edbf1fa TV |
277 | ret = drm_crtc_crc_init(crtc); |
278 | if (ret) { | |
279 | drm_mode_object_unregister(dev, &crtc->base); | |
280 | return ret; | |
281 | } | |
282 | ||
eab3bbef DV |
283 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
284 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 285 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
beaf5af4 GP |
286 | drm_object_attach_property(&crtc->base, |
287 | config->prop_out_fence_ptr, 0); | |
eab3bbef DV |
288 | } |
289 | ||
baf698b0 | 290 | return 0; |
f453ba04 | 291 | } |
e13161af | 292 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
293 | |
294 | /** | |
ad6f5c34 | 295 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
296 | * @crtc: CRTC to cleanup |
297 | * | |
ad6f5c34 VS |
298 | * This function cleans up @crtc and removes it from the DRM mode setting |
299 | * core. Note that the function does *not* free the crtc structure itself, | |
300 | * this is the responsibility of the caller. | |
f453ba04 DA |
301 | */ |
302 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
303 | { | |
304 | struct drm_device *dev = crtc->dev; | |
305 | ||
490d3d1b CW |
306 | /* Note that the crtc_list is considered to be static; should we |
307 | * remove the drm_crtc at runtime we would have to decrement all | |
308 | * the indices on the drm_crtc after us in the crtc_list. | |
309 | */ | |
310 | ||
9edbf1fa TV |
311 | drm_crtc_crc_fini(crtc); |
312 | ||
9e1c156f SK |
313 | kfree(crtc->gamma_store); |
314 | crtc->gamma_store = NULL; | |
f453ba04 | 315 | |
51fd371b RC |
316 | drm_modeset_lock_fini(&crtc->mutex); |
317 | ||
7c8f6d25 | 318 | drm_mode_object_unregister(dev, &crtc->base); |
f453ba04 DA |
319 | list_del(&crtc->head); |
320 | dev->mode_config.num_crtc--; | |
3009c037 TR |
321 | |
322 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
323 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
324 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 | 325 | |
fa3ab4c2 VS |
326 | kfree(crtc->name); |
327 | ||
a18c0af1 | 328 | memset(crtc, 0, sizeof(*crtc)); |
f453ba04 DA |
329 | } |
330 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
331 | ||
f453ba04 DA |
332 | /** |
333 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
334 | * @dev: drm device for the ioctl |
335 | * @data: data pointer for the ioctl | |
336 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 337 | * |
f453ba04 DA |
338 | * Construct a CRTC configuration structure to return to the user. |
339 | * | |
340 | * Called by the user via ioctl. | |
341 | * | |
c8e32cc1 | 342 | * Returns: |
1a498633 | 343 | * Zero on success, negative errno on failure. |
f453ba04 DA |
344 | */ |
345 | int drm_mode_getcrtc(struct drm_device *dev, | |
346 | void *data, struct drm_file *file_priv) | |
347 | { | |
348 | struct drm_mode_crtc *crtc_resp = data; | |
349 | struct drm_crtc *crtc; | |
f453ba04 | 350 | |
fb3b06c8 DA |
351 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
352 | return -EINVAL; | |
353 | ||
a2b34e22 | 354 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
355 | if (!crtc) |
356 | return -ENOENT; | |
f453ba04 | 357 | |
fcf93f69 | 358 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 359 | crtc_resp->gamma_size = crtc->gamma_size; |
de7b6be7 DS |
360 | |
361 | if (crtc->primary->state && crtc->primary->state->fb) | |
362 | crtc_resp->fb_id = crtc->primary->state->fb->base.id; | |
363 | else if (!crtc->primary->state && crtc->primary->fb) | |
f4510a27 | 364 | crtc_resp->fb_id = crtc->primary->fb->base.id; |
f453ba04 DA |
365 | else |
366 | crtc_resp->fb_id = 0; | |
367 | ||
31c946e8 DV |
368 | if (crtc->state) { |
369 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
370 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
371 | if (crtc->state->enable) { | |
934a8a89 | 372 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 373 | crtc_resp->mode_valid = 1; |
f453ba04 | 374 | |
31c946e8 DV |
375 | } else { |
376 | crtc_resp->mode_valid = 0; | |
377 | } | |
f453ba04 | 378 | } else { |
31c946e8 DV |
379 | crtc_resp->x = crtc->x; |
380 | crtc_resp->y = crtc->y; | |
381 | if (crtc->enabled) { | |
934a8a89 | 382 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
383 | crtc_resp->mode_valid = 1; |
384 | ||
385 | } else { | |
386 | crtc_resp->mode_valid = 0; | |
387 | } | |
f453ba04 | 388 | } |
fcf93f69 | 389 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 390 | |
baf698b0 | 391 | return 0; |
f453ba04 DA |
392 | } |
393 | ||
2d13b679 DV |
394 | /** |
395 | * drm_mode_set_config_internal - helper to call ->set_config | |
396 | * @set: modeset config to set | |
397 | * | |
398 | * This is a little helper to wrap internal calls to the ->set_config driver | |
399 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 400 | * |
c8e32cc1 | 401 | * Returns: |
1a498633 | 402 | * Zero on success, negative errno on failure. |
2d13b679 DV |
403 | */ |
404 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
405 | { | |
406 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
407 | struct drm_framebuffer *fb; |
408 | struct drm_crtc *tmp; | |
b0d12325 DV |
409 | int ret; |
410 | ||
5cef29aa DV |
411 | /* |
412 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
413 | * connectors from it), hence we need to refcount the fbs across all | |
414 | * crtcs. Atomic modeset will have saner semantics ... | |
415 | */ | |
e4f62546 | 416 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 417 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 418 | |
b0d12325 | 419 | fb = set->fb; |
2d13b679 | 420 | |
b0d12325 DV |
421 | ret = crtc->funcs->set_config(set); |
422 | if (ret == 0) { | |
e13161af | 423 | crtc->primary->crtc = crtc; |
0fe27f06 | 424 | crtc->primary->fb = fb; |
5cef29aa | 425 | } |
cc85e121 | 426 | |
e4f62546 | 427 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
428 | if (tmp->primary->fb) |
429 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
430 | if (tmp->primary->old_fb) |
431 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
432 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
433 | } |
434 | ||
435 | return ret; | |
2d13b679 DV |
436 | } |
437 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
438 | ||
ecb7e16b GP |
439 | /** |
440 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
441 | * @mode: mode to query | |
442 | * @hdisplay: hdisplay value to fill in | |
443 | * @vdisplay: vdisplay value to fill in | |
444 | * | |
445 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
446 | * the appropriate layout. | |
447 | */ | |
448 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
449 | int *hdisplay, int *vdisplay) | |
450 | { | |
451 | struct drm_display_mode adjusted; | |
452 | ||
453 | drm_mode_copy(&adjusted, mode); | |
454 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
455 | *hdisplay = adjusted.crtc_hdisplay; | |
456 | *vdisplay = adjusted.crtc_vdisplay; | |
457 | } | |
458 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
459 | ||
af93629d MR |
460 | /** |
461 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
462 | * CRTC viewport | |
463 | * @crtc: CRTC that framebuffer will be displayed on | |
464 | * @x: x panning | |
465 | * @y: y panning | |
466 | * @mode: mode that framebuffer will be displayed under | |
467 | * @fb: framebuffer to check size of | |
c11e9283 | 468 | */ |
af93629d MR |
469 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
470 | int x, int y, | |
471 | const struct drm_display_mode *mode, | |
472 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
473 | |
474 | { | |
475 | int hdisplay, vdisplay; | |
476 | ||
ecb7e16b | 477 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 478 | |
33e0be63 | 479 | if (crtc->state && |
bd2ef25d | 480 | drm_rotation_90_or_270(crtc->primary->state->rotation)) |
c11e9283 DL |
481 | swap(hdisplay, vdisplay); |
482 | ||
43968d7b DV |
483 | return drm_framebuffer_check_src_coords(x << 16, y << 16, |
484 | hdisplay << 16, vdisplay << 16, | |
485 | fb); | |
c11e9283 | 486 | } |
af93629d | 487 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 488 | |
f453ba04 DA |
489 | /** |
490 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
491 | * @dev: drm device for the ioctl |
492 | * @data: data pointer for the ioctl | |
493 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 494 | * |
f453ba04 DA |
495 | * Build a new CRTC configuration based on user request. |
496 | * | |
497 | * Called by the user via ioctl. | |
498 | * | |
c8e32cc1 | 499 | * Returns: |
1a498633 | 500 | * Zero on success, negative errno on failure. |
f453ba04 DA |
501 | */ |
502 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
503 | struct drm_file *file_priv) | |
504 | { | |
505 | struct drm_mode_config *config = &dev->mode_config; | |
506 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 507 | struct drm_crtc *crtc; |
f453ba04 DA |
508 | struct drm_connector **connector_set = NULL, *connector; |
509 | struct drm_framebuffer *fb = NULL; | |
510 | struct drm_display_mode *mode = NULL; | |
511 | struct drm_mode_set set; | |
512 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 513 | int ret; |
f453ba04 DA |
514 | int i; |
515 | ||
fb3b06c8 DA |
516 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
517 | return -EINVAL; | |
518 | ||
01447e9f ZJ |
519 | /* |
520 | * Universal plane src offsets are only 16.16, prevent havoc for | |
521 | * drivers using universal plane code internally. | |
522 | */ | |
523 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
524 | return -ERANGE; |
525 | ||
84849903 | 526 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
527 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
528 | if (!crtc) { | |
58367ed6 | 529 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 530 | ret = -ENOENT; |
f453ba04 DA |
531 | goto out; |
532 | } | |
fa3ab4c2 | 533 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 DA |
534 | |
535 | if (crtc_req->mode_valid) { | |
536 | /* If we have a mode we need a framebuffer. */ | |
537 | /* If we pass -1, set the mode with the currently bound fb */ | |
538 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 539 | if (!crtc->primary->fb) { |
6653cc8d VS |
540 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
541 | ret = -EINVAL; | |
542 | goto out; | |
f453ba04 | 543 | } |
f4510a27 | 544 | fb = crtc->primary->fb; |
b0d12325 DV |
545 | /* Make refcounting symmetric with the lookup path. */ |
546 | drm_framebuffer_reference(fb); | |
f453ba04 | 547 | } else { |
786b99ed DV |
548 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
549 | if (!fb) { | |
58367ed6 ZY |
550 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
551 | crtc_req->fb_id); | |
37c4e705 | 552 | ret = -ENOENT; |
f453ba04 DA |
553 | goto out; |
554 | } | |
f453ba04 DA |
555 | } |
556 | ||
557 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
558 | if (!mode) { |
559 | ret = -ENOMEM; | |
560 | goto out; | |
561 | } | |
562 | ||
934a8a89 | 563 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
564 | if (ret) { |
565 | DRM_DEBUG_KMS("Invalid mode\n"); | |
566 | goto out; | |
567 | } | |
568 | ||
7eb5f302 LP |
569 | /* |
570 | * Check whether the primary plane supports the fb pixel format. | |
571 | * Drivers not implementing the universal planes API use a | |
572 | * default formats list provided by the DRM core which doesn't | |
573 | * match real hardware capabilities. Skip the check in that | |
574 | * case. | |
575 | */ | |
576 | if (!crtc->primary->format_default) { | |
577 | ret = drm_plane_check_pixel_format(crtc->primary, | |
438b74a5 | 578 | fb->format->format); |
7eb5f302 | 579 | if (ret) { |
b3c11ac2 EE |
580 | struct drm_format_name_buf format_name; |
581 | DRM_DEBUG_KMS("Invalid pixel format %s\n", | |
438b74a5 | 582 | drm_get_format_name(fb->format->format, |
b3c11ac2 | 583 | &format_name)); |
7eb5f302 LP |
584 | goto out; |
585 | } | |
586 | } | |
587 | ||
c11e9283 DL |
588 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
589 | mode, fb); | |
590 | if (ret) | |
5f61bb42 | 591 | goto out; |
c11e9283 | 592 | |
f453ba04 DA |
593 | } |
594 | ||
595 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 596 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
597 | ret = -EINVAL; |
598 | goto out; | |
599 | } | |
600 | ||
7781de74 | 601 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 602 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
603 | crtc_req->count_connectors); |
604 | ret = -EINVAL; | |
605 | goto out; | |
606 | } | |
607 | ||
608 | if (crtc_req->count_connectors > 0) { | |
609 | u32 out_id; | |
610 | ||
611 | /* Avoid unbounded kernel memory allocation */ | |
612 | if (crtc_req->count_connectors > config->num_connector) { | |
613 | ret = -EINVAL; | |
614 | goto out; | |
615 | } | |
616 | ||
2f6c5389 TR |
617 | connector_set = kmalloc_array(crtc_req->count_connectors, |
618 | sizeof(struct drm_connector *), | |
619 | GFP_KERNEL); | |
f453ba04 DA |
620 | if (!connector_set) { |
621 | ret = -ENOMEM; | |
622 | goto out; | |
623 | } | |
624 | ||
625 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 626 | connector_set[i] = NULL; |
81f6c7f8 | 627 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
628 | if (get_user(out_id, &set_connectors_ptr[i])) { |
629 | ret = -EFAULT; | |
630 | goto out; | |
631 | } | |
632 | ||
b164d31f | 633 | connector = drm_connector_lookup(dev, out_id); |
a2b34e22 | 634 | if (!connector) { |
58367ed6 ZY |
635 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
636 | out_id); | |
f27657f2 | 637 | ret = -ENOENT; |
f453ba04 DA |
638 | goto out; |
639 | } | |
9440106b JG |
640 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
641 | connector->base.id, | |
25933820 | 642 | connector->name); |
f453ba04 DA |
643 | |
644 | connector_set[i] = connector; | |
645 | } | |
646 | } | |
647 | ||
648 | set.crtc = crtc; | |
649 | set.x = crtc_req->x; | |
650 | set.y = crtc_req->y; | |
651 | set.mode = mode; | |
652 | set.connectors = connector_set; | |
653 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 654 | set.fb = fb; |
2d13b679 | 655 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
656 | |
657 | out: | |
b0d12325 DV |
658 | if (fb) |
659 | drm_framebuffer_unreference(fb); | |
660 | ||
b164d31f DA |
661 | if (connector_set) { |
662 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
663 | if (connector_set[i]) | |
664 | drm_connector_unreference(connector_set[i]); | |
665 | } | |
666 | } | |
f453ba04 | 667 | kfree(connector_set); |
ee34ab5b | 668 | drm_mode_destroy(dev, mode); |
84849903 | 669 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
670 | return ret; |
671 | } | |
672 | ||
949619f3 DV |
673 | int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
674 | struct drm_property *property, | |
675 | uint64_t value) | |
4a67d391 | 676 | { |
bffd9de0 PZ |
677 | int ret = -EINVAL; |
678 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4a67d391 | 679 | |
bffd9de0 PZ |
680 | if (crtc->funcs->set_property) |
681 | ret = crtc->funcs->set_property(crtc, property, value); | |
682 | if (!ret) | |
683 | drm_object_property_set_value(obj, property, value); | |
4a67d391 | 684 | |
bffd9de0 | 685 | return ret; |
4a67d391 | 686 | } |