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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> |
f453ba04 | 41 | |
8bd441b2 DV |
42 | #include "drm_crtc_internal.h" |
43 | ||
84849903 DV |
44 | /** |
45 | * drm_modeset_lock_all - take all modeset locks | |
46 | * @dev: drm device | |
47 | * | |
48 | * This function takes all modeset locks, suitable where a more fine-grained | |
c8e32cc1 DV |
49 | * scheme isn't (yet) implemented. Locks must be dropped with |
50 | * drm_modeset_unlock_all. | |
84849903 DV |
51 | */ |
52 | void drm_modeset_lock_all(struct drm_device *dev) | |
53 | { | |
51fd371b RC |
54 | struct drm_mode_config *config = &dev->mode_config; |
55 | struct drm_modeset_acquire_ctx *ctx; | |
56 | int ret; | |
29494c17 | 57 | |
51fd371b RC |
58 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
59 | if (WARN_ON(!ctx)) | |
60 | return; | |
29494c17 | 61 | |
51fd371b | 62 | mutex_lock(&config->mutex); |
6e9f798d | 63 | |
51fd371b RC |
64 | drm_modeset_acquire_init(ctx, 0); |
65 | ||
66 | retry: | |
67 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
68 | if (ret) | |
69 | goto fail; | |
70 | ret = drm_modeset_lock_all_crtcs(dev, ctx); | |
71 | if (ret) | |
72 | goto fail; | |
73 | ||
74 | WARN_ON(config->acquire_ctx); | |
75 | ||
76 | /* now we hold the locks, so now that it is safe, stash the | |
77 | * ctx for drm_modeset_unlock_all(): | |
78 | */ | |
79 | config->acquire_ctx = ctx; | |
80 | ||
81 | drm_warn_on_modeset_not_all_locked(dev); | |
82 | ||
83 | return; | |
84 | ||
85 | fail: | |
86 | if (ret == -EDEADLK) { | |
87 | drm_modeset_backoff(ctx); | |
88 | goto retry; | |
89 | } | |
84849903 DV |
90 | } |
91 | EXPORT_SYMBOL(drm_modeset_lock_all); | |
92 | ||
93 | /** | |
94 | * drm_modeset_unlock_all - drop all modeset locks | |
95 | * @dev: device | |
c8e32cc1 DV |
96 | * |
97 | * This function drop all modeset locks taken by drm_modeset_lock_all. | |
84849903 DV |
98 | */ |
99 | void drm_modeset_unlock_all(struct drm_device *dev) | |
100 | { | |
51fd371b RC |
101 | struct drm_mode_config *config = &dev->mode_config; |
102 | struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; | |
29494c17 | 103 | |
51fd371b RC |
104 | if (WARN_ON(!ctx)) |
105 | return; | |
106 | ||
107 | config->acquire_ctx = NULL; | |
108 | drm_modeset_drop_locks(ctx); | |
109 | drm_modeset_acquire_fini(ctx); | |
29494c17 | 110 | |
51fd371b | 111 | kfree(ctx); |
6e9f798d | 112 | |
84849903 DV |
113 | mutex_unlock(&dev->mode_config.mutex); |
114 | } | |
115 | EXPORT_SYMBOL(drm_modeset_unlock_all); | |
116 | ||
6aed8ec3 DV |
117 | /** |
118 | * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked | |
119 | * @dev: device | |
c8e32cc1 DV |
120 | * |
121 | * Useful as a debug assert. | |
6aed8ec3 DV |
122 | */ |
123 | void drm_warn_on_modeset_not_all_locked(struct drm_device *dev) | |
124 | { | |
125 | struct drm_crtc *crtc; | |
126 | ||
a9b054e8 DV |
127 | /* Locking is currently fubar in the panic handler. */ |
128 | if (oops_in_progress) | |
129 | return; | |
130 | ||
6aed8ec3 | 131 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
51fd371b | 132 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); |
6aed8ec3 | 133 | |
51fd371b | 134 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
6aed8ec3 DV |
135 | WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); |
136 | } | |
137 | EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked); | |
138 | ||
f453ba04 DA |
139 | /* Avoid boilerplate. I'm tired of typing. */ |
140 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 141 | const char *fnname(int val) \ |
f453ba04 DA |
142 | { \ |
143 | int i; \ | |
144 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
145 | if (list[i].type == val) \ | |
146 | return list[i].name; \ | |
147 | } \ | |
148 | return "(unknown)"; \ | |
149 | } | |
150 | ||
151 | /* | |
152 | * Global properties | |
153 | */ | |
d20d3174 | 154 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
f453ba04 DA |
155 | { { DRM_MODE_DPMS_ON, "On" }, |
156 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
157 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
158 | { DRM_MODE_DPMS_OFF, "Off" } | |
159 | }; | |
160 | ||
161 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
162 | ||
9922ab5a RC |
163 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
164 | { | |
165 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
166 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
167 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
168 | }; | |
169 | ||
f453ba04 DA |
170 | /* |
171 | * Optional properties | |
172 | */ | |
d20d3174 | 173 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 174 | { |
53bd8389 JB |
175 | { DRM_MODE_SCALE_NONE, "None" }, |
176 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
177 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
178 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
179 | }; |
180 | ||
f453ba04 DA |
181 | /* |
182 | * Non-global properties, but "required" for certain connectors. | |
183 | */ | |
d20d3174 | 184 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
185 | { |
186 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
187 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
188 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
189 | }; | |
190 | ||
191 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
192 | ||
d20d3174 | 193 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
194 | { |
195 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
196 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
197 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
198 | }; | |
199 | ||
200 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
201 | drm_dvi_i_subconnector_enum_list) | |
202 | ||
d20d3174 | 203 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
204 | { |
205 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
206 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
207 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
208 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 209 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
210 | }; |
211 | ||
212 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
213 | ||
d20d3174 | 214 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
215 | { |
216 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
217 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
218 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
219 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 220 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
221 | }; |
222 | ||
223 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
224 | drm_tv_subconnector_enum_list) | |
225 | ||
d20d3174 | 226 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
227 | { DRM_MODE_DIRTY_OFF, "Off" }, |
228 | { DRM_MODE_DIRTY_ON, "On" }, | |
229 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
230 | }; | |
231 | ||
f453ba04 DA |
232 | struct drm_conn_prop_enum_list { |
233 | int type; | |
d20d3174 | 234 | const char *name; |
b21e3afe | 235 | struct ida ida; |
f453ba04 DA |
236 | }; |
237 | ||
238 | /* | |
239 | * Connector and encoder types. | |
240 | */ | |
241 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
242 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
243 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
244 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
245 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
246 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
247 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
248 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
249 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
250 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
251 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
252 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
253 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
254 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
255 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
256 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
257 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 258 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
259 | }; |
260 | ||
d20d3174 | 261 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
262 | { { DRM_MODE_ENCODER_NONE, "None" }, |
263 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
264 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
265 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
266 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 267 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 268 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 269 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
270 | }; |
271 | ||
ac1bb36c JB |
272 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
273 | { | |
274 | { SubPixelUnknown, "Unknown" }, | |
275 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
276 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
277 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
278 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
279 | { SubPixelNone, "None" }, | |
280 | }; | |
281 | ||
b21e3afe IM |
282 | void drm_connector_ida_init(void) |
283 | { | |
284 | int i; | |
285 | ||
286 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
287 | ida_init(&drm_connector_enum_list[i].ida); | |
288 | } | |
289 | ||
290 | void drm_connector_ida_destroy(void) | |
291 | { | |
292 | int i; | |
293 | ||
294 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
295 | ida_destroy(&drm_connector_enum_list[i].ida); | |
296 | } | |
297 | ||
c8e32cc1 DV |
298 | /** |
299 | * drm_get_connector_status_name - return a string for connector status | |
300 | * @status: connector status to compute name of | |
301 | * | |
302 | * In contrast to the other drm_get_*_name functions this one here returns a | |
303 | * const pointer and hence is threadsafe. | |
304 | */ | |
d20d3174 | 305 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
306 | { |
307 | if (status == connector_status_connected) | |
308 | return "connected"; | |
309 | else if (status == connector_status_disconnected) | |
310 | return "disconnected"; | |
311 | else | |
312 | return "unknown"; | |
313 | } | |
ed7951dc | 314 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 315 | |
ac1bb36c JB |
316 | /** |
317 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
318 | * @order: enum of subpixel_order | |
319 | * | |
320 | * Note you could abuse this and return something out of bounds, but that | |
321 | * would be a caller error. No unscrubbed user data should make it here. | |
322 | */ | |
323 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
324 | { | |
325 | return drm_subpixel_enum_list[order].name; | |
326 | } | |
327 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
328 | ||
6ba6d03e VS |
329 | static char printable_char(int c) |
330 | { | |
331 | return isascii(c) && isprint(c) ? c : '?'; | |
332 | } | |
333 | ||
c8e32cc1 DV |
334 | /** |
335 | * drm_get_format_name - return a string for drm fourcc format | |
336 | * @format: format to compute name of | |
337 | * | |
338 | * Note that the buffer used by this function is globally shared and owned by | |
339 | * the function itself. | |
340 | * | |
341 | * FIXME: This isn't really multithreading safe. | |
342 | */ | |
d20d3174 | 343 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
344 | { |
345 | static char buf[32]; | |
346 | ||
347 | snprintf(buf, sizeof(buf), | |
348 | "%c%c%c%c %s-endian (0x%08x)", | |
349 | printable_char(format & 0xff), | |
350 | printable_char((format >> 8) & 0xff), | |
351 | printable_char((format >> 16) & 0xff), | |
352 | printable_char((format >> 24) & 0x7f), | |
353 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
354 | format); | |
355 | ||
356 | return buf; | |
357 | } | |
358 | EXPORT_SYMBOL(drm_get_format_name); | |
359 | ||
f453ba04 | 360 | /** |
065a50ed | 361 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 362 | * @dev: DRM device |
065a50ed DV |
363 | * @obj: object pointer, used to generate unique ID |
364 | * @obj_type: object type | |
f453ba04 | 365 | * |
f453ba04 | 366 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
367 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
368 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
369 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 370 | * |
c8e32cc1 | 371 | * Returns: |
f453ba04 DA |
372 | * New unique (relative to other objects in @dev) integer identifier for the |
373 | * object. | |
374 | */ | |
8bd441b2 DV |
375 | int drm_mode_object_get(struct drm_device *dev, |
376 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 377 | { |
f453ba04 DA |
378 | int ret; |
379 | ||
ad2563c2 | 380 | mutex_lock(&dev->mode_config.idr_mutex); |
2e928815 TH |
381 | ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL); |
382 | if (ret >= 0) { | |
4b096ac1 DV |
383 | /* |
384 | * Set up the object linking under the protection of the idr | |
385 | * lock so that other users can't see inconsistent state. | |
386 | */ | |
2e928815 | 387 | obj->id = ret; |
4b096ac1 DV |
388 | obj->type = obj_type; |
389 | } | |
ad2563c2 | 390 | mutex_unlock(&dev->mode_config.idr_mutex); |
4b096ac1 | 391 | |
2e928815 | 392 | return ret < 0 ? ret : 0; |
f453ba04 DA |
393 | } |
394 | ||
395 | /** | |
065a50ed | 396 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 397 | * @dev: DRM device |
065a50ed | 398 | * @object: object to free |
f453ba04 | 399 | * |
c8e32cc1 DV |
400 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
401 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
402 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 403 | */ |
8bd441b2 DV |
404 | void drm_mode_object_put(struct drm_device *dev, |
405 | struct drm_mode_object *object) | |
f453ba04 | 406 | { |
ad2563c2 | 407 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 408 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 409 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
410 | } |
411 | ||
98f75de4 RC |
412 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
413 | uint32_t id, uint32_t type) | |
414 | { | |
415 | struct drm_mode_object *obj = NULL; | |
416 | ||
417 | mutex_lock(&dev->mode_config.idr_mutex); | |
418 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
419 | if (!obj || (type != DRM_MODE_OBJECT_ANY && obj->type != type) || | |
420 | (obj->id != id)) | |
421 | obj = NULL; | |
422 | mutex_unlock(&dev->mode_config.idr_mutex); | |
423 | ||
424 | return obj; | |
425 | } | |
426 | ||
786b99ed DV |
427 | /** |
428 | * drm_mode_object_find - look up a drm object with static lifetime | |
429 | * @dev: drm device | |
430 | * @id: id of the mode object | |
431 | * @type: type of the mode object | |
432 | * | |
433 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
434 | * are reference counted, they need special treatment. Even with |
435 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
436 | * rather than WARN_ON()). | |
786b99ed | 437 | */ |
7a9c9060 DV |
438 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
439 | uint32_t id, uint32_t type) | |
f453ba04 | 440 | { |
ad2563c2 | 441 | struct drm_mode_object *obj = NULL; |
f453ba04 | 442 | |
786b99ed DV |
443 | /* Framebuffers are reference counted and need their own lookup |
444 | * function.*/ | |
445 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 RC |
446 | obj = _object_find(dev, id, type); |
447 | /* don't leak out unref'd fb's */ | |
448 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
ad2563c2 | 449 | obj = NULL; |
f453ba04 DA |
450 | return obj; |
451 | } | |
452 | EXPORT_SYMBOL(drm_mode_object_find); | |
453 | ||
f453ba04 DA |
454 | /** |
455 | * drm_framebuffer_init - initialize a framebuffer | |
456 | * @dev: DRM device | |
065a50ed DV |
457 | * @fb: framebuffer to be initialized |
458 | * @funcs: ... with these functions | |
f453ba04 | 459 | * |
f453ba04 DA |
460 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
461 | * functions & device file and adds it to the master fd list. | |
462 | * | |
4b096ac1 DV |
463 | * IMPORTANT: |
464 | * This functions publishes the fb and makes it available for concurrent access | |
465 | * by other users. Which means by this point the fb _must_ be fully set up - | |
466 | * since all the fb attributes are invariant over its lifetime, no further | |
467 | * locking but only correct reference counting is required. | |
468 | * | |
c8e32cc1 | 469 | * Returns: |
af901ca1 | 470 | * Zero on success, error code on failure. |
f453ba04 DA |
471 | */ |
472 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
473 | const struct drm_framebuffer_funcs *funcs) | |
474 | { | |
475 | int ret; | |
476 | ||
4b096ac1 | 477 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 478 | kref_init(&fb->refcount); |
4b096ac1 DV |
479 | INIT_LIST_HEAD(&fb->filp_head); |
480 | fb->dev = dev; | |
481 | fb->funcs = funcs; | |
f7eff60e | 482 | |
f453ba04 | 483 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 484 | if (ret) |
4b096ac1 | 485 | goto out; |
f453ba04 | 486 | |
2b677e8c DV |
487 | /* Grab the idr reference. */ |
488 | drm_framebuffer_reference(fb); | |
489 | ||
f453ba04 DA |
490 | dev->mode_config.num_fb++; |
491 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
492 | out: |
493 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
494 | |
495 | return 0; | |
496 | } | |
497 | EXPORT_SYMBOL(drm_framebuffer_init); | |
498 | ||
f7eff60e RC |
499 | static void drm_framebuffer_free(struct kref *kref) |
500 | { | |
501 | struct drm_framebuffer *fb = | |
502 | container_of(kref, struct drm_framebuffer, refcount); | |
503 | fb->funcs->destroy(fb); | |
504 | } | |
505 | ||
2b677e8c DV |
506 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
507 | uint32_t id) | |
508 | { | |
509 | struct drm_mode_object *obj = NULL; | |
510 | struct drm_framebuffer *fb; | |
511 | ||
512 | mutex_lock(&dev->mode_config.idr_mutex); | |
513 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
514 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
515 | fb = NULL; | |
516 | else | |
517 | fb = obj_to_fb(obj); | |
518 | mutex_unlock(&dev->mode_config.idr_mutex); | |
519 | ||
520 | return fb; | |
521 | } | |
522 | ||
786b99ed DV |
523 | /** |
524 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
525 | * @dev: drm device | |
526 | * @id: id of the fb object | |
527 | * | |
528 | * If successful, this grabs an additional reference to the framebuffer - | |
529 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 530 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
531 | */ |
532 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
533 | uint32_t id) | |
534 | { | |
786b99ed DV |
535 | struct drm_framebuffer *fb; |
536 | ||
537 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 538 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed | 539 | if (fb) |
9131d3d8 | 540 | drm_framebuffer_reference(fb); |
786b99ed DV |
541 | mutex_unlock(&dev->mode_config.fb_lock); |
542 | ||
543 | return fb; | |
544 | } | |
545 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
546 | ||
f7eff60e RC |
547 | /** |
548 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
549 | * @fb: framebuffer to unref |
550 | * | |
551 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
552 | */ |
553 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
554 | { | |
8291272a | 555 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
556 | kref_put(&fb->refcount, drm_framebuffer_free); |
557 | } | |
558 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
559 | ||
560 | /** | |
561 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 562 | * @fb: framebuffer |
c8e32cc1 DV |
563 | * |
564 | * This functions increments the fb's refcount. | |
f7eff60e RC |
565 | */ |
566 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
567 | { | |
8291272a | 568 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
569 | kref_get(&fb->refcount); |
570 | } | |
571 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
572 | ||
2b677e8c DV |
573 | static void drm_framebuffer_free_bug(struct kref *kref) |
574 | { | |
575 | BUG(); | |
576 | } | |
577 | ||
6c2a7532 DV |
578 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
579 | { | |
8291272a | 580 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
6c2a7532 DV |
581 | kref_put(&fb->refcount, drm_framebuffer_free_bug); |
582 | } | |
583 | ||
2b677e8c DV |
584 | /* dev->mode_config.fb_lock must be held! */ |
585 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
586 | struct drm_framebuffer *fb) | |
587 | { | |
588 | mutex_lock(&dev->mode_config.idr_mutex); | |
589 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
590 | mutex_unlock(&dev->mode_config.idr_mutex); | |
591 | ||
592 | fb->base.id = 0; | |
593 | ||
6c2a7532 | 594 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
595 | } |
596 | ||
36206361 DV |
597 | /** |
598 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
599 | * @fb: fb to unregister | |
600 | * | |
601 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
602 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
603 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
604 | * locking inversion). | |
605 | */ | |
606 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
607 | { | |
2b677e8c DV |
608 | struct drm_device *dev = fb->dev; |
609 | ||
610 | mutex_lock(&dev->mode_config.fb_lock); | |
611 | /* Mark fb as reaped and drop idr ref. */ | |
612 | __drm_framebuffer_unregister(dev, fb); | |
613 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
614 | } |
615 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
616 | ||
f453ba04 DA |
617 | /** |
618 | * drm_framebuffer_cleanup - remove a framebuffer object | |
619 | * @fb: framebuffer to remove | |
620 | * | |
c8e32cc1 DV |
621 | * Cleanup framebuffer. This function is intended to be used from the drivers |
622 | * ->destroy callback. It can also be used to clean up driver private | |
623 | * framebuffers embedded into a larger structure. | |
36206361 DV |
624 | * |
625 | * Note that this function does not remove the fb from active usuage - if it is | |
626 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
627 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
628 | * | |
629 | * Also, the framebuffer will not be removed from the lookup idr - for | |
630 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
631 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
632 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
633 | */ |
634 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
635 | { |
636 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 637 | |
4b096ac1 | 638 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
639 | list_del(&fb->head); |
640 | dev->mode_config.num_fb--; | |
4b096ac1 | 641 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
642 | } |
643 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
644 | ||
645 | /** | |
646 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
647 | * @fb: framebuffer to remove | |
648 | * | |
f7eff60e | 649 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 650 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
651 | * passed-in framebuffer. Might take the modeset locks. |
652 | * | |
653 | * Note that this function optimizes the cleanup away if the caller holds the | |
654 | * last reference to the framebuffer. It is also guaranteed to not take the | |
655 | * modeset locks in this case. | |
f7eff60e RC |
656 | */ |
657 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
658 | { |
659 | struct drm_device *dev = fb->dev; | |
660 | struct drm_crtc *crtc; | |
8cf5c917 | 661 | struct drm_plane *plane; |
5ef5f72f DA |
662 | struct drm_mode_set set; |
663 | int ret; | |
f453ba04 | 664 | |
4b096ac1 | 665 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 666 | |
b62584e3 DV |
667 | /* |
668 | * drm ABI mandates that we remove any deleted framebuffers from active | |
669 | * useage. But since most sane clients only remove framebuffers they no | |
670 | * longer need, try to optimize this away. | |
671 | * | |
672 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
673 | * means that we're the last holder and can skip it. Also, the refcount | |
674 | * can never increase from 1 again, so we don't need any barriers or | |
675 | * locks. | |
676 | * | |
677 | * Note that userspace could try to race with use and instate a new | |
678 | * usage _after_ we've cleared all current ones. End result will be an | |
679 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
680 | * in this manner. | |
681 | */ | |
682 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
683 | drm_modeset_lock_all(dev); | |
684 | /* remove from any CRTC */ | |
685 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 686 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
687 | /* should turn off the crtc */ |
688 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
689 | set.crtc = crtc; | |
690 | set.fb = NULL; | |
691 | ret = drm_mode_set_config_internal(&set); | |
692 | if (ret) | |
693 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
694 | } | |
5ef5f72f | 695 | } |
f453ba04 | 696 | |
b62584e3 | 697 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
698 | if (plane->fb == fb) |
699 | drm_plane_force_disable(plane); | |
8cf5c917 | 700 | } |
b62584e3 | 701 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
702 | } |
703 | ||
f7eff60e | 704 | drm_framebuffer_unreference(fb); |
f453ba04 | 705 | } |
f7eff60e | 706 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 707 | |
51fd371b RC |
708 | DEFINE_WW_CLASS(crtc_ww_class); |
709 | ||
f453ba04 | 710 | /** |
e13161af MR |
711 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
712 | * specified primary and cursor planes. | |
f453ba04 DA |
713 | * @dev: DRM device |
714 | * @crtc: CRTC object to init | |
e13161af MR |
715 | * @primary: Primary plane for CRTC |
716 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
717 | * @funcs: callbacks for the new CRTC |
718 | * | |
ad6f5c34 | 719 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 720 | * |
c8e32cc1 | 721 | * Returns: |
6bfc56aa | 722 | * Zero on success, error code on failure. |
f453ba04 | 723 | */ |
e13161af MR |
724 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
725 | struct drm_plane *primary, | |
726 | void *cursor, | |
727 | const struct drm_crtc_funcs *funcs) | |
f453ba04 | 728 | { |
51fd371b | 729 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
730 | int ret; |
731 | ||
f453ba04 DA |
732 | crtc->dev = dev; |
733 | crtc->funcs = funcs; | |
7c80e128 | 734 | crtc->invert_dimensions = false; |
f453ba04 | 735 | |
84849903 | 736 | drm_modeset_lock_all(dev); |
51fd371b RC |
737 | drm_modeset_lock_init(&crtc->mutex); |
738 | /* dropped by _unlock_all(): */ | |
739 | drm_modeset_lock(&crtc->mutex, config->acquire_ctx); | |
6bfc56aa VS |
740 | |
741 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
742 | if (ret) | |
743 | goto out; | |
f453ba04 | 744 | |
bffd9de0 PZ |
745 | crtc->base.properties = &crtc->properties; |
746 | ||
51fd371b RC |
747 | list_add_tail(&crtc->head, &config->crtc_list); |
748 | config->num_crtc++; | |
6bfc56aa | 749 | |
e13161af MR |
750 | crtc->primary = primary; |
751 | if (primary) | |
752 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
753 | ||
6bfc56aa | 754 | out: |
84849903 | 755 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
756 | |
757 | return ret; | |
f453ba04 | 758 | } |
e13161af | 759 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
760 | |
761 | /** | |
ad6f5c34 | 762 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
763 | * @crtc: CRTC to cleanup |
764 | * | |
ad6f5c34 VS |
765 | * This function cleans up @crtc and removes it from the DRM mode setting |
766 | * core. Note that the function does *not* free the crtc structure itself, | |
767 | * this is the responsibility of the caller. | |
f453ba04 DA |
768 | */ |
769 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
770 | { | |
771 | struct drm_device *dev = crtc->dev; | |
772 | ||
9e1c156f SK |
773 | kfree(crtc->gamma_store); |
774 | crtc->gamma_store = NULL; | |
f453ba04 | 775 | |
51fd371b RC |
776 | drm_modeset_lock_fini(&crtc->mutex); |
777 | ||
f453ba04 DA |
778 | drm_mode_object_put(dev, &crtc->base); |
779 | list_del(&crtc->head); | |
780 | dev->mode_config.num_crtc--; | |
781 | } | |
782 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
783 | ||
db5f7a6e RK |
784 | /** |
785 | * drm_crtc_index - find the index of a registered CRTC | |
786 | * @crtc: CRTC to find index for | |
787 | * | |
788 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
789 | * device's list of CRTCs. | |
790 | */ | |
791 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
792 | { | |
793 | unsigned int index = 0; | |
794 | struct drm_crtc *tmp; | |
795 | ||
796 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
797 | if (tmp == crtc) | |
798 | return index; | |
799 | ||
800 | index++; | |
801 | } | |
802 | ||
803 | BUG(); | |
804 | } | |
805 | EXPORT_SYMBOL(drm_crtc_index); | |
806 | ||
86f422d5 | 807 | /* |
f453ba04 DA |
808 | * drm_mode_remove - remove and free a mode |
809 | * @connector: connector list to modify | |
810 | * @mode: mode to remove | |
811 | * | |
f453ba04 DA |
812 | * Remove @mode from @connector's mode list, then free it. |
813 | */ | |
86f422d5 LD |
814 | static void drm_mode_remove(struct drm_connector *connector, |
815 | struct drm_display_mode *mode) | |
f453ba04 DA |
816 | { |
817 | list_del(&mode->head); | |
554f1d78 | 818 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 819 | } |
f453ba04 DA |
820 | |
821 | /** | |
822 | * drm_connector_init - Init a preallocated connector | |
823 | * @dev: DRM device | |
824 | * @connector: the connector to init | |
825 | * @funcs: callbacks for this connector | |
065a50ed | 826 | * @connector_type: user visible type of the connector |
f453ba04 | 827 | * |
f453ba04 DA |
828 | * Initialises a preallocated connector. Connectors should be |
829 | * subclassed as part of driver connector objects. | |
6bfc56aa | 830 | * |
c8e32cc1 | 831 | * Returns: |
6bfc56aa | 832 | * Zero on success, error code on failure. |
f453ba04 | 833 | */ |
6bfc56aa VS |
834 | int drm_connector_init(struct drm_device *dev, |
835 | struct drm_connector *connector, | |
836 | const struct drm_connector_funcs *funcs, | |
837 | int connector_type) | |
f453ba04 | 838 | { |
6bfc56aa | 839 | int ret; |
b21e3afe IM |
840 | struct ida *connector_ida = |
841 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 842 | |
84849903 | 843 | drm_modeset_lock_all(dev); |
f453ba04 | 844 | |
6bfc56aa VS |
845 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
846 | if (ret) | |
2abdd313 | 847 | goto out_unlock; |
6bfc56aa | 848 | |
7e3bdf4a | 849 | connector->base.properties = &connector->properties; |
f453ba04 DA |
850 | connector->dev = dev; |
851 | connector->funcs = funcs; | |
f453ba04 DA |
852 | connector->connector_type = connector_type; |
853 | connector->connector_type_id = | |
b21e3afe IM |
854 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
855 | if (connector->connector_type_id < 0) { | |
856 | ret = connector->connector_type_id; | |
2abdd313 | 857 | goto out_put; |
b21e3afe | 858 | } |
2abdd313 JN |
859 | connector->name = |
860 | kasprintf(GFP_KERNEL, "%s-%d", | |
861 | drm_connector_enum_list[connector_type].name, | |
862 | connector->connector_type_id); | |
863 | if (!connector->name) { | |
864 | ret = -ENOMEM; | |
865 | goto out_put; | |
866 | } | |
867 | ||
f453ba04 DA |
868 | INIT_LIST_HEAD(&connector->probed_modes); |
869 | INIT_LIST_HEAD(&connector->modes); | |
870 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 871 | connector->status = connector_status_unknown; |
f453ba04 DA |
872 | |
873 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
874 | dev->mode_config.num_connector++; | |
875 | ||
a7331e5c | 876 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 877 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
878 | dev->mode_config.edid_property, |
879 | 0); | |
f453ba04 | 880 | |
58495563 | 881 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
882 | dev->mode_config.dpms_property, 0); |
883 | ||
2abdd313 JN |
884 | out_put: |
885 | if (ret) | |
886 | drm_mode_object_put(dev, &connector->base); | |
887 | ||
888 | out_unlock: | |
84849903 | 889 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
890 | |
891 | return ret; | |
f453ba04 DA |
892 | } |
893 | EXPORT_SYMBOL(drm_connector_init); | |
894 | ||
895 | /** | |
896 | * drm_connector_cleanup - cleans up an initialised connector | |
897 | * @connector: connector to cleanup | |
898 | * | |
f453ba04 DA |
899 | * Cleans up the connector but doesn't free the object. |
900 | */ | |
901 | void drm_connector_cleanup(struct drm_connector *connector) | |
902 | { | |
903 | struct drm_device *dev = connector->dev; | |
904 | struct drm_display_mode *mode, *t; | |
905 | ||
906 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
907 | drm_mode_remove(connector, mode); | |
908 | ||
909 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
910 | drm_mode_remove(connector, mode); | |
911 | ||
b21e3afe IM |
912 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
913 | connector->connector_type_id); | |
914 | ||
f453ba04 | 915 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
916 | kfree(connector->name); |
917 | connector->name = NULL; | |
f453ba04 | 918 | list_del(&connector->head); |
6380c509 | 919 | dev->mode_config.num_connector--; |
f453ba04 DA |
920 | } |
921 | EXPORT_SYMBOL(drm_connector_cleanup); | |
922 | ||
c8e32cc1 DV |
923 | /** |
924 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
925 | * @dev: drm device | |
926 | * | |
927 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
928 | * be call when the device is disconnected, e.g. from an usb driver's | |
929 | * ->disconnect callback. | |
930 | */ | |
cbc7e221 DA |
931 | void drm_connector_unplug_all(struct drm_device *dev) |
932 | { | |
933 | struct drm_connector *connector; | |
934 | ||
935 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
936 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
937 | drm_sysfs_connector_remove(connector); | |
938 | ||
939 | } | |
940 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
941 | ||
c8e32cc1 DV |
942 | /** |
943 | * drm_bridge_init - initialize a drm transcoder/bridge | |
944 | * @dev: drm device | |
945 | * @bridge: transcoder/bridge to set up | |
946 | * @funcs: bridge function table | |
947 | * | |
948 | * Initialises a preallocated bridge. Bridges should be | |
949 | * subclassed as part of driver connector objects. | |
950 | * | |
951 | * Returns: | |
952 | * Zero on success, error code on failure. | |
953 | */ | |
3b336ec4 SP |
954 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
955 | const struct drm_bridge_funcs *funcs) | |
956 | { | |
957 | int ret; | |
958 | ||
959 | drm_modeset_lock_all(dev); | |
960 | ||
961 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
962 | if (ret) | |
963 | goto out; | |
964 | ||
965 | bridge->dev = dev; | |
966 | bridge->funcs = funcs; | |
967 | ||
968 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
969 | dev->mode_config.num_bridge++; | |
970 | ||
971 | out: | |
972 | drm_modeset_unlock_all(dev); | |
973 | return ret; | |
974 | } | |
975 | EXPORT_SYMBOL(drm_bridge_init); | |
976 | ||
c8e32cc1 DV |
977 | /** |
978 | * drm_bridge_cleanup - cleans up an initialised bridge | |
979 | * @bridge: bridge to cleanup | |
980 | * | |
981 | * Cleans up the bridge but doesn't free the object. | |
982 | */ | |
3b336ec4 SP |
983 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
984 | { | |
985 | struct drm_device *dev = bridge->dev; | |
986 | ||
987 | drm_modeset_lock_all(dev); | |
988 | drm_mode_object_put(dev, &bridge->base); | |
989 | list_del(&bridge->head); | |
990 | dev->mode_config.num_bridge--; | |
991 | drm_modeset_unlock_all(dev); | |
992 | } | |
993 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
994 | ||
c8e32cc1 DV |
995 | /** |
996 | * drm_encoder_init - Init a preallocated encoder | |
997 | * @dev: drm device | |
998 | * @encoder: the encoder to init | |
999 | * @funcs: callbacks for this encoder | |
1000 | * @encoder_type: user visible type of the encoder | |
1001 | * | |
1002 | * Initialises a preallocated encoder. Encoder should be | |
1003 | * subclassed as part of driver encoder objects. | |
1004 | * | |
1005 | * Returns: | |
1006 | * Zero on success, error code on failure. | |
1007 | */ | |
6bfc56aa | 1008 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1009 | struct drm_encoder *encoder, |
1010 | const struct drm_encoder_funcs *funcs, | |
1011 | int encoder_type) | |
f453ba04 | 1012 | { |
6bfc56aa VS |
1013 | int ret; |
1014 | ||
84849903 | 1015 | drm_modeset_lock_all(dev); |
f453ba04 | 1016 | |
6bfc56aa VS |
1017 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1018 | if (ret) | |
e5748946 | 1019 | goto out_unlock; |
f453ba04 | 1020 | |
6bfc56aa | 1021 | encoder->dev = dev; |
f453ba04 DA |
1022 | encoder->encoder_type = encoder_type; |
1023 | encoder->funcs = funcs; | |
e5748946 JN |
1024 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1025 | drm_encoder_enum_list[encoder_type].name, | |
1026 | encoder->base.id); | |
1027 | if (!encoder->name) { | |
1028 | ret = -ENOMEM; | |
1029 | goto out_put; | |
1030 | } | |
f453ba04 DA |
1031 | |
1032 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1033 | dev->mode_config.num_encoder++; | |
1034 | ||
e5748946 JN |
1035 | out_put: |
1036 | if (ret) | |
1037 | drm_mode_object_put(dev, &encoder->base); | |
1038 | ||
1039 | out_unlock: | |
84849903 | 1040 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1041 | |
1042 | return ret; | |
f453ba04 DA |
1043 | } |
1044 | EXPORT_SYMBOL(drm_encoder_init); | |
1045 | ||
c8e32cc1 DV |
1046 | /** |
1047 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1048 | * @encoder: encoder to cleanup | |
1049 | * | |
1050 | * Cleans up the encoder but doesn't free the object. | |
1051 | */ | |
f453ba04 DA |
1052 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1053 | { | |
1054 | struct drm_device *dev = encoder->dev; | |
84849903 | 1055 | drm_modeset_lock_all(dev); |
f453ba04 | 1056 | drm_mode_object_put(dev, &encoder->base); |
e5748946 JN |
1057 | kfree(encoder->name); |
1058 | encoder->name = NULL; | |
f453ba04 | 1059 | list_del(&encoder->head); |
6380c509 | 1060 | dev->mode_config.num_encoder--; |
84849903 | 1061 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1062 | } |
1063 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1064 | ||
35f2c3ae | 1065 | /** |
dc415ff9 | 1066 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1067 | * @dev: DRM device |
1068 | * @plane: plane object to init | |
1069 | * @possible_crtcs: bitmask of possible CRTCs | |
1070 | * @funcs: callbacks for the new plane | |
1071 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1072 | * @format_count: number of elements in @formats | |
dc415ff9 | 1073 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1074 | * |
dc415ff9 | 1075 | * Initializes a plane object of type @type. |
35f2c3ae | 1076 | * |
c8e32cc1 | 1077 | * Returns: |
35f2c3ae VS |
1078 | * Zero on success, error code on failure. |
1079 | */ | |
dc415ff9 MR |
1080 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1081 | unsigned long possible_crtcs, | |
1082 | const struct drm_plane_funcs *funcs, | |
1083 | const uint32_t *formats, uint32_t format_count, | |
1084 | enum drm_plane_type type) | |
8cf5c917 | 1085 | { |
6bfc56aa VS |
1086 | int ret; |
1087 | ||
84849903 | 1088 | drm_modeset_lock_all(dev); |
8cf5c917 | 1089 | |
6bfc56aa VS |
1090 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1091 | if (ret) | |
1092 | goto out; | |
1093 | ||
4d93914a | 1094 | plane->base.properties = &plane->properties; |
8cf5c917 | 1095 | plane->dev = dev; |
8cf5c917 JB |
1096 | plane->funcs = funcs; |
1097 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1098 | GFP_KERNEL); | |
1099 | if (!plane->format_types) { | |
1100 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1101 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1102 | ret = -ENOMEM; |
1103 | goto out; | |
8cf5c917 JB |
1104 | } |
1105 | ||
308e5bcb | 1106 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1107 | plane->format_count = format_count; |
1108 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1109 | plane->type = type; |
8cf5c917 | 1110 | |
dc415ff9 MR |
1111 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
1112 | dev->mode_config.num_total_plane++; | |
1113 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1114 | dev->mode_config.num_overlay_plane++; | |
8cf5c917 | 1115 | |
9922ab5a RC |
1116 | drm_object_attach_property(&plane->base, |
1117 | dev->mode_config.plane_type_property, | |
1118 | plane->type); | |
1119 | ||
6bfc56aa | 1120 | out: |
84849903 | 1121 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1122 | |
6bfc56aa | 1123 | return ret; |
8cf5c917 | 1124 | } |
dc415ff9 MR |
1125 | EXPORT_SYMBOL(drm_universal_plane_init); |
1126 | ||
1127 | /** | |
1128 | * drm_plane_init - Initialize a legacy plane | |
1129 | * @dev: DRM device | |
1130 | * @plane: plane object to init | |
1131 | * @possible_crtcs: bitmask of possible CRTCs | |
1132 | * @funcs: callbacks for the new plane | |
1133 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1134 | * @format_count: number of elements in @formats | |
1135 | * @is_primary: plane type (primary vs overlay) | |
1136 | * | |
1137 | * Legacy API to initialize a DRM plane. | |
1138 | * | |
1139 | * New drivers should call drm_universal_plane_init() instead. | |
1140 | * | |
1141 | * Returns: | |
1142 | * Zero on success, error code on failure. | |
1143 | */ | |
1144 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1145 | unsigned long possible_crtcs, | |
1146 | const struct drm_plane_funcs *funcs, | |
1147 | const uint32_t *formats, uint32_t format_count, | |
1148 | bool is_primary) | |
1149 | { | |
1150 | enum drm_plane_type type; | |
1151 | ||
1152 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1153 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1154 | formats, format_count, type); | |
1155 | } | |
8cf5c917 JB |
1156 | EXPORT_SYMBOL(drm_plane_init); |
1157 | ||
35f2c3ae VS |
1158 | /** |
1159 | * drm_plane_cleanup - Clean up the core plane usage | |
1160 | * @plane: plane to cleanup | |
1161 | * | |
1162 | * This function cleans up @plane and removes it from the DRM mode setting | |
1163 | * core. Note that the function does *not* free the plane structure itself, | |
1164 | * this is the responsibility of the caller. | |
1165 | */ | |
8cf5c917 JB |
1166 | void drm_plane_cleanup(struct drm_plane *plane) |
1167 | { | |
1168 | struct drm_device *dev = plane->dev; | |
1169 | ||
84849903 | 1170 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1171 | kfree(plane->format_types); |
1172 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1173 | |
1174 | BUG_ON(list_empty(&plane->head)); | |
1175 | ||
1176 | list_del(&plane->head); | |
1177 | dev->mode_config.num_total_plane--; | |
1178 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1179 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1180 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1181 | } |
1182 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1183 | ||
35f2c3ae VS |
1184 | /** |
1185 | * drm_plane_force_disable - Forcibly disable a plane | |
1186 | * @plane: plane to disable | |
1187 | * | |
1188 | * Forces the plane to be disabled. | |
1189 | * | |
1190 | * Used when the plane's current framebuffer is destroyed, | |
1191 | * and when restoring fbdev mode. | |
1192 | */ | |
9125e618 VS |
1193 | void drm_plane_force_disable(struct drm_plane *plane) |
1194 | { | |
0fe27f06 | 1195 | struct drm_framebuffer *old_fb = plane->fb; |
9125e618 VS |
1196 | int ret; |
1197 | ||
0fe27f06 | 1198 | if (!old_fb) |
9125e618 VS |
1199 | return; |
1200 | ||
1201 | ret = plane->funcs->disable_plane(plane); | |
731cce48 | 1202 | if (ret) { |
9125e618 | 1203 | DRM_ERROR("failed to disable plane with busy fb\n"); |
731cce48 DV |
1204 | return; |
1205 | } | |
9125e618 | 1206 | /* disconnect the plane from the fb and crtc: */ |
0fe27f06 | 1207 | __drm_framebuffer_unreference(old_fb); |
9125e618 VS |
1208 | plane->fb = NULL; |
1209 | plane->crtc = NULL; | |
1210 | } | |
1211 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1212 | ||
f453ba04 DA |
1213 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1214 | { | |
1215 | struct drm_property *edid; | |
1216 | struct drm_property *dpms; | |
f453ba04 DA |
1217 | |
1218 | /* | |
1219 | * Standard properties (apply to all connectors) | |
1220 | */ | |
1221 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1222 | DRM_MODE_PROP_IMMUTABLE, | |
1223 | "EDID", 0); | |
1224 | dev->mode_config.edid_property = edid; | |
1225 | ||
4a67d391 SH |
1226 | dpms = drm_property_create_enum(dev, 0, |
1227 | "DPMS", drm_dpms_enum_list, | |
1228 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1229 | dev->mode_config.dpms_property = dpms; |
1230 | ||
1231 | return 0; | |
1232 | } | |
1233 | ||
9922ab5a RC |
1234 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1235 | { | |
1236 | struct drm_property *type; | |
1237 | ||
1238 | /* | |
1239 | * Standard properties (apply to all planes) | |
1240 | */ | |
1241 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
1242 | "type", drm_plane_type_enum_list, | |
1243 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
1244 | dev->mode_config.plane_type_property = type; | |
1245 | ||
1246 | return 0; | |
1247 | } | |
1248 | ||
f453ba04 DA |
1249 | /** |
1250 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1251 | * @dev: DRM device | |
1252 | * | |
1253 | * Called by a driver the first time a DVI-I connector is made. | |
1254 | */ | |
1255 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1256 | { | |
1257 | struct drm_property *dvi_i_selector; | |
1258 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1259 | |
1260 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1261 | return 0; | |
1262 | ||
1263 | dvi_i_selector = | |
4a67d391 | 1264 | drm_property_create_enum(dev, 0, |
f453ba04 | 1265 | "select subconnector", |
4a67d391 | 1266 | drm_dvi_i_select_enum_list, |
f453ba04 | 1267 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1268 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1269 | ||
4a67d391 | 1270 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1271 | "subconnector", |
4a67d391 | 1272 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1273 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1274 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1275 | ||
1276 | return 0; | |
1277 | } | |
1278 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1279 | ||
1280 | /** | |
1281 | * drm_create_tv_properties - create TV specific connector properties | |
1282 | * @dev: DRM device | |
1283 | * @num_modes: number of different TV formats (modes) supported | |
1284 | * @modes: array of pointers to strings containing name of each format | |
1285 | * | |
1286 | * Called by a driver's TV initialization routine, this function creates | |
1287 | * the TV specific connector properties for a given device. Caller is | |
1288 | * responsible for allocating a list of format names and passing them to | |
1289 | * this routine. | |
1290 | */ | |
1291 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1292 | char *modes[]) | |
1293 | { | |
1294 | struct drm_property *tv_selector; | |
1295 | struct drm_property *tv_subconnector; | |
1296 | int i; | |
1297 | ||
1298 | if (dev->mode_config.tv_select_subconnector_property) | |
1299 | return 0; | |
1300 | ||
1301 | /* | |
1302 | * Basic connector properties | |
1303 | */ | |
4a67d391 | 1304 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1305 | "select subconnector", |
4a67d391 | 1306 | drm_tv_select_enum_list, |
f453ba04 | 1307 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1308 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1309 | ||
1310 | tv_subconnector = | |
4a67d391 SH |
1311 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1312 | "subconnector", | |
1313 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1314 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1315 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1316 | ||
1317 | /* | |
1318 | * Other, TV specific properties: margins & TV modes. | |
1319 | */ | |
1320 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1321 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1322 | |
1323 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1324 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1325 | |
1326 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1327 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1328 | |
1329 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1330 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1331 | |
1332 | dev->mode_config.tv_mode_property = | |
1333 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1334 | "mode", num_modes); | |
1335 | for (i = 0; i < num_modes; i++) | |
1336 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1337 | i, modes[i]); | |
1338 | ||
b6b7902e | 1339 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1340 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1341 | |
1342 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1343 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1344 | |
1345 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1346 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1347 | |
a75f0236 | 1348 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1349 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1350 | |
1351 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1352 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1353 | |
1354 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1355 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1356 | |
f453ba04 DA |
1357 | return 0; |
1358 | } | |
1359 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1360 | ||
1361 | /** | |
1362 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1363 | * @dev: DRM device | |
1364 | * | |
1365 | * Called by a driver the first time it's needed, must be attached to desired | |
1366 | * connectors. | |
1367 | */ | |
1368 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1369 | { | |
1370 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1371 | |
1372 | if (dev->mode_config.scaling_mode_property) | |
1373 | return 0; | |
1374 | ||
1375 | scaling_mode = | |
4a67d391 SH |
1376 | drm_property_create_enum(dev, 0, "scaling mode", |
1377 | drm_scaling_mode_enum_list, | |
f453ba04 | 1378 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1379 | |
1380 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1381 | ||
1382 | return 0; | |
1383 | } | |
1384 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1385 | ||
884840aa JB |
1386 | /** |
1387 | * drm_mode_create_dirty_property - create dirty property | |
1388 | * @dev: DRM device | |
1389 | * | |
1390 | * Called by a driver the first time it's needed, must be attached to desired | |
1391 | * connectors. | |
1392 | */ | |
1393 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1394 | { | |
1395 | struct drm_property *dirty_info; | |
884840aa JB |
1396 | |
1397 | if (dev->mode_config.dirty_info_property) | |
1398 | return 0; | |
1399 | ||
1400 | dirty_info = | |
4a67d391 | 1401 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1402 | "dirty", |
4a67d391 | 1403 | drm_dirty_info_enum_list, |
884840aa | 1404 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1405 | dev->mode_config.dirty_info_property = dirty_info; |
1406 | ||
1407 | return 0; | |
1408 | } | |
1409 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1410 | ||
ea9cbb06 | 1411 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1412 | { |
1413 | uint32_t total_objects = 0; | |
1414 | ||
1415 | total_objects += dev->mode_config.num_crtc; | |
1416 | total_objects += dev->mode_config.num_connector; | |
1417 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1418 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1419 | |
f453ba04 DA |
1420 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1421 | if (!group->id_list) | |
1422 | return -ENOMEM; | |
1423 | ||
1424 | group->num_crtcs = 0; | |
1425 | group->num_connectors = 0; | |
1426 | group->num_encoders = 0; | |
3b336ec4 | 1427 | group->num_bridges = 0; |
f453ba04 DA |
1428 | return 0; |
1429 | } | |
1430 | ||
ad222799 DA |
1431 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1432 | { | |
1433 | kfree(group->id_list); | |
1434 | group->id_list = NULL; | |
1435 | } | |
1436 | ||
c8e32cc1 DV |
1437 | /* |
1438 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1439 | * the drm core's responsibility to set up mode control groups. | |
1440 | */ | |
f453ba04 DA |
1441 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1442 | struct drm_mode_group *group) | |
1443 | { | |
1444 | struct drm_crtc *crtc; | |
1445 | struct drm_encoder *encoder; | |
1446 | struct drm_connector *connector; | |
3b336ec4 | 1447 | struct drm_bridge *bridge; |
f453ba04 DA |
1448 | int ret; |
1449 | ||
1450 | if ((ret = drm_mode_group_init(dev, group))) | |
1451 | return ret; | |
1452 | ||
1453 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1454 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1455 | ||
1456 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1457 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1458 | encoder->base.id; | |
1459 | ||
1460 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1461 | group->id_list[group->num_crtcs + group->num_encoders + | |
1462 | group->num_connectors++] = connector->base.id; | |
1463 | ||
3b336ec4 SP |
1464 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1465 | group->id_list[group->num_crtcs + group->num_encoders + | |
1466 | group->num_connectors + group->num_bridges++] = | |
1467 | bridge->base.id; | |
1468 | ||
f453ba04 DA |
1469 | return 0; |
1470 | } | |
9c1dfc55 | 1471 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1472 | |
f453ba04 DA |
1473 | /** |
1474 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1475 | * @out: drm_mode_modeinfo struct to return to the user | |
1476 | * @in: drm_display_mode to use | |
1477 | * | |
f453ba04 DA |
1478 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1479 | * the user. | |
1480 | */ | |
93bbf6db VS |
1481 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1482 | const struct drm_display_mode *in) | |
f453ba04 | 1483 | { |
e36fae38 VS |
1484 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1485 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1486 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1487 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1488 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1489 | "timing values too large for mode info\n"); | |
1490 | ||
f453ba04 DA |
1491 | out->clock = in->clock; |
1492 | out->hdisplay = in->hdisplay; | |
1493 | out->hsync_start = in->hsync_start; | |
1494 | out->hsync_end = in->hsync_end; | |
1495 | out->htotal = in->htotal; | |
1496 | out->hskew = in->hskew; | |
1497 | out->vdisplay = in->vdisplay; | |
1498 | out->vsync_start = in->vsync_start; | |
1499 | out->vsync_end = in->vsync_end; | |
1500 | out->vtotal = in->vtotal; | |
1501 | out->vscan = in->vscan; | |
1502 | out->vrefresh = in->vrefresh; | |
1503 | out->flags = in->flags; | |
1504 | out->type = in->type; | |
1505 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1506 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1507 | } | |
1508 | ||
1509 | /** | |
74afee7d | 1510 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1511 | * @out: drm_display_mode to return to the user |
1512 | * @in: drm_mode_modeinfo to use | |
1513 | * | |
f453ba04 DA |
1514 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1515 | * the caller. | |
90367bf6 | 1516 | * |
c8e32cc1 | 1517 | * Returns: |
90367bf6 | 1518 | * Zero on success, errno on failure. |
f453ba04 | 1519 | */ |
93bbf6db VS |
1520 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1521 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1522 | { |
90367bf6 VS |
1523 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1524 | return -ERANGE; | |
1525 | ||
5848ad40 DL |
1526 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1527 | return -EINVAL; | |
1528 | ||
f453ba04 DA |
1529 | out->clock = in->clock; |
1530 | out->hdisplay = in->hdisplay; | |
1531 | out->hsync_start = in->hsync_start; | |
1532 | out->hsync_end = in->hsync_end; | |
1533 | out->htotal = in->htotal; | |
1534 | out->hskew = in->hskew; | |
1535 | out->vdisplay = in->vdisplay; | |
1536 | out->vsync_start = in->vsync_start; | |
1537 | out->vsync_end = in->vsync_end; | |
1538 | out->vtotal = in->vtotal; | |
1539 | out->vscan = in->vscan; | |
1540 | out->vrefresh = in->vrefresh; | |
1541 | out->flags = in->flags; | |
1542 | out->type = in->type; | |
1543 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1544 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1545 | |
1546 | return 0; | |
f453ba04 DA |
1547 | } |
1548 | ||
1549 | /** | |
1550 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1551 | * @dev: drm device for the ioctl |
1552 | * @data: data pointer for the ioctl | |
1553 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1554 | * |
f453ba04 DA |
1555 | * Construct a set of configuration description structures and return |
1556 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1557 | * | |
1558 | * Called by the user via ioctl. | |
1559 | * | |
c8e32cc1 | 1560 | * Returns: |
f453ba04 DA |
1561 | * Zero on success, errno on failure. |
1562 | */ | |
1563 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1564 | struct drm_file *file_priv) | |
1565 | { | |
1566 | struct drm_mode_card_res *card_res = data; | |
1567 | struct list_head *lh; | |
1568 | struct drm_framebuffer *fb; | |
1569 | struct drm_connector *connector; | |
1570 | struct drm_crtc *crtc; | |
1571 | struct drm_encoder *encoder; | |
1572 | int ret = 0; | |
1573 | int connector_count = 0; | |
1574 | int crtc_count = 0; | |
1575 | int fb_count = 0; | |
1576 | int encoder_count = 0; | |
1577 | int copied = 0, i; | |
1578 | uint32_t __user *fb_id; | |
1579 | uint32_t __user *crtc_id; | |
1580 | uint32_t __user *connector_id; | |
1581 | uint32_t __user *encoder_id; | |
1582 | struct drm_mode_group *mode_group; | |
1583 | ||
fb3b06c8 DA |
1584 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1585 | return -EINVAL; | |
1586 | ||
f453ba04 | 1587 | |
4b096ac1 | 1588 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1589 | /* |
1590 | * For the non-control nodes we need to limit the list of resources | |
1591 | * by IDs in the group list for this node | |
1592 | */ | |
1593 | list_for_each(lh, &file_priv->fbs) | |
1594 | fb_count++; | |
1595 | ||
4b096ac1 DV |
1596 | /* handle this in 4 parts */ |
1597 | /* FBs */ | |
1598 | if (card_res->count_fbs >= fb_count) { | |
1599 | copied = 0; | |
1600 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1601 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1602 | if (put_user(fb->base.id, fb_id + copied)) { | |
1603 | mutex_unlock(&file_priv->fbs_lock); | |
1604 | return -EFAULT; | |
1605 | } | |
1606 | copied++; | |
1607 | } | |
1608 | } | |
1609 | card_res->count_fbs = fb_count; | |
1610 | mutex_unlock(&file_priv->fbs_lock); | |
1611 | ||
1612 | drm_modeset_lock_all(dev); | |
43683057 | 1613 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1614 | |
09f308f7 | 1615 | mode_group = NULL; |
f453ba04 DA |
1616 | list_for_each(lh, &dev->mode_config.crtc_list) |
1617 | crtc_count++; | |
1618 | ||
1619 | list_for_each(lh, &dev->mode_config.connector_list) | |
1620 | connector_count++; | |
1621 | ||
1622 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1623 | encoder_count++; | |
1624 | } else { | |
1625 | ||
09f308f7 | 1626 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1627 | crtc_count = mode_group->num_crtcs; |
1628 | connector_count = mode_group->num_connectors; | |
1629 | encoder_count = mode_group->num_encoders; | |
1630 | } | |
1631 | ||
1632 | card_res->max_height = dev->mode_config.max_height; | |
1633 | card_res->min_height = dev->mode_config.min_height; | |
1634 | card_res->max_width = dev->mode_config.max_width; | |
1635 | card_res->min_width = dev->mode_config.min_width; | |
1636 | ||
f453ba04 DA |
1637 | /* CRTCs */ |
1638 | if (card_res->count_crtcs >= crtc_count) { | |
1639 | copied = 0; | |
1640 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1641 | if (!mode_group) { |
f453ba04 DA |
1642 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1643 | head) { | |
9440106b | 1644 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1645 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1646 | ret = -EFAULT; | |
1647 | goto out; | |
1648 | } | |
1649 | copied++; | |
1650 | } | |
1651 | } else { | |
1652 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1653 | if (put_user(mode_group->id_list[i], | |
1654 | crtc_id + copied)) { | |
1655 | ret = -EFAULT; | |
1656 | goto out; | |
1657 | } | |
1658 | copied++; | |
1659 | } | |
1660 | } | |
1661 | } | |
1662 | card_res->count_crtcs = crtc_count; | |
1663 | ||
1664 | /* Encoders */ | |
1665 | if (card_res->count_encoders >= encoder_count) { | |
1666 | copied = 0; | |
1667 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1668 | if (!mode_group) { |
f453ba04 DA |
1669 | list_for_each_entry(encoder, |
1670 | &dev->mode_config.encoder_list, | |
1671 | head) { | |
9440106b | 1672 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1673 | encoder->name); |
f453ba04 DA |
1674 | if (put_user(encoder->base.id, encoder_id + |
1675 | copied)) { | |
1676 | ret = -EFAULT; | |
1677 | goto out; | |
1678 | } | |
1679 | copied++; | |
1680 | } | |
1681 | } else { | |
1682 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1683 | if (put_user(mode_group->id_list[i], | |
1684 | encoder_id + copied)) { | |
1685 | ret = -EFAULT; | |
1686 | goto out; | |
1687 | } | |
1688 | copied++; | |
1689 | } | |
1690 | ||
1691 | } | |
1692 | } | |
1693 | card_res->count_encoders = encoder_count; | |
1694 | ||
1695 | /* Connectors */ | |
1696 | if (card_res->count_connectors >= connector_count) { | |
1697 | copied = 0; | |
1698 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1699 | if (!mode_group) { |
f453ba04 DA |
1700 | list_for_each_entry(connector, |
1701 | &dev->mode_config.connector_list, | |
1702 | head) { | |
9440106b JG |
1703 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1704 | connector->base.id, | |
25933820 | 1705 | connector->name); |
f453ba04 DA |
1706 | if (put_user(connector->base.id, |
1707 | connector_id + copied)) { | |
1708 | ret = -EFAULT; | |
1709 | goto out; | |
1710 | } | |
1711 | copied++; | |
1712 | } | |
1713 | } else { | |
1714 | int start = mode_group->num_crtcs + | |
1715 | mode_group->num_encoders; | |
1716 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1717 | if (put_user(mode_group->id_list[i], | |
1718 | connector_id + copied)) { | |
1719 | ret = -EFAULT; | |
1720 | goto out; | |
1721 | } | |
1722 | copied++; | |
1723 | } | |
1724 | } | |
1725 | } | |
1726 | card_res->count_connectors = connector_count; | |
1727 | ||
9440106b | 1728 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1729 | card_res->count_connectors, card_res->count_encoders); |
1730 | ||
1731 | out: | |
84849903 | 1732 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1733 | return ret; |
1734 | } | |
1735 | ||
1736 | /** | |
1737 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1738 | * @dev: drm device for the ioctl |
1739 | * @data: data pointer for the ioctl | |
1740 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1741 | * |
f453ba04 DA |
1742 | * Construct a CRTC configuration structure to return to the user. |
1743 | * | |
1744 | * Called by the user via ioctl. | |
1745 | * | |
c8e32cc1 | 1746 | * Returns: |
f453ba04 DA |
1747 | * Zero on success, errno on failure. |
1748 | */ | |
1749 | int drm_mode_getcrtc(struct drm_device *dev, | |
1750 | void *data, struct drm_file *file_priv) | |
1751 | { | |
1752 | struct drm_mode_crtc *crtc_resp = data; | |
1753 | struct drm_crtc *crtc; | |
f453ba04 DA |
1754 | int ret = 0; |
1755 | ||
fb3b06c8 DA |
1756 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1757 | return -EINVAL; | |
1758 | ||
84849903 | 1759 | drm_modeset_lock_all(dev); |
f453ba04 | 1760 | |
a2b34e22 RC |
1761 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
1762 | if (!crtc) { | |
f27657f2 | 1763 | ret = -ENOENT; |
f453ba04 DA |
1764 | goto out; |
1765 | } | |
f453ba04 DA |
1766 | |
1767 | crtc_resp->x = crtc->x; | |
1768 | crtc_resp->y = crtc->y; | |
1769 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
1770 | if (crtc->primary->fb) |
1771 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1772 | else |
1773 | crtc_resp->fb_id = 0; | |
1774 | ||
1775 | if (crtc->enabled) { | |
1776 | ||
1777 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1778 | crtc_resp->mode_valid = 1; | |
1779 | ||
1780 | } else { | |
1781 | crtc_resp->mode_valid = 0; | |
1782 | } | |
1783 | ||
1784 | out: | |
84849903 | 1785 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1786 | return ret; |
1787 | } | |
1788 | ||
61d8e328 DL |
1789 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1790 | const struct drm_file *file_priv) | |
1791 | { | |
1792 | /* | |
1793 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1794 | * modes, don't expose them. | |
1795 | */ | |
1796 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1797 | return false; | |
1798 | ||
1799 | return true; | |
1800 | } | |
1801 | ||
f453ba04 DA |
1802 | /** |
1803 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1804 | * @dev: drm device for the ioctl |
1805 | * @data: data pointer for the ioctl | |
1806 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1807 | * |
f453ba04 DA |
1808 | * Construct a connector configuration structure to return to the user. |
1809 | * | |
1810 | * Called by the user via ioctl. | |
1811 | * | |
c8e32cc1 | 1812 | * Returns: |
f453ba04 DA |
1813 | * Zero on success, errno on failure. |
1814 | */ | |
1815 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1816 | struct drm_file *file_priv) | |
1817 | { | |
1818 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 DA |
1819 | struct drm_connector *connector; |
1820 | struct drm_display_mode *mode; | |
1821 | int mode_count = 0; | |
1822 | int props_count = 0; | |
1823 | int encoders_count = 0; | |
1824 | int ret = 0; | |
1825 | int copied = 0; | |
1826 | int i; | |
1827 | struct drm_mode_modeinfo u_mode; | |
1828 | struct drm_mode_modeinfo __user *mode_ptr; | |
1829 | uint32_t __user *prop_ptr; | |
1830 | uint64_t __user *prop_values; | |
1831 | uint32_t __user *encoder_ptr; | |
1832 | ||
fb3b06c8 DA |
1833 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1834 | return -EINVAL; | |
1835 | ||
f453ba04 DA |
1836 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1837 | ||
9440106b | 1838 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1839 | |
7b24056b | 1840 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 1841 | |
a2b34e22 RC |
1842 | connector = drm_connector_find(dev, out_resp->connector_id); |
1843 | if (!connector) { | |
f27657f2 | 1844 | ret = -ENOENT; |
f453ba04 DA |
1845 | goto out; |
1846 | } | |
f453ba04 | 1847 | |
7f88a9be | 1848 | props_count = connector->properties.count; |
f453ba04 DA |
1849 | |
1850 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1851 | if (connector->encoder_ids[i] != 0) { | |
1852 | encoders_count++; | |
1853 | } | |
1854 | } | |
1855 | ||
1856 | if (out_resp->count_modes == 0) { | |
1857 | connector->funcs->fill_modes(connector, | |
1858 | dev->mode_config.max_width, | |
1859 | dev->mode_config.max_height); | |
1860 | } | |
1861 | ||
1862 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1863 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1864 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1865 | mode_count++; | |
f453ba04 DA |
1866 | |
1867 | out_resp->connector_id = connector->base.id; | |
1868 | out_resp->connector_type = connector->connector_type; | |
1869 | out_resp->connector_type_id = connector->connector_type_id; | |
1870 | out_resp->mm_width = connector->display_info.width_mm; | |
1871 | out_resp->mm_height = connector->display_info.height_mm; | |
1872 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1873 | out_resp->connection = connector->status; | |
832fd395 | 1874 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
f453ba04 DA |
1875 | if (connector->encoder) |
1876 | out_resp->encoder_id = connector->encoder->base.id; | |
1877 | else | |
1878 | out_resp->encoder_id = 0; | |
832fd395 | 1879 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
f453ba04 DA |
1880 | |
1881 | /* | |
1882 | * This ioctl is called twice, once to determine how much space is | |
1883 | * needed, and the 2nd time to fill it. | |
1884 | */ | |
1885 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1886 | copied = 0; | |
81f6c7f8 | 1887 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 1888 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
1889 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
1890 | continue; | |
1891 | ||
f453ba04 DA |
1892 | drm_crtc_convert_to_umode(&u_mode, mode); |
1893 | if (copy_to_user(mode_ptr + copied, | |
1894 | &u_mode, sizeof(u_mode))) { | |
1895 | ret = -EFAULT; | |
1896 | goto out; | |
1897 | } | |
1898 | copied++; | |
1899 | } | |
1900 | } | |
1901 | out_resp->count_modes = mode_count; | |
1902 | ||
1903 | if ((out_resp->count_props >= props_count) && props_count) { | |
1904 | copied = 0; | |
81f6c7f8 VS |
1905 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1906 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1907 | for (i = 0; i < connector->properties.count; i++) { |
1908 | if (put_user(connector->properties.ids[i], | |
1909 | prop_ptr + copied)) { | |
1910 | ret = -EFAULT; | |
1911 | goto out; | |
1912 | } | |
f453ba04 | 1913 | |
7f88a9be PZ |
1914 | if (put_user(connector->properties.values[i], |
1915 | prop_values + copied)) { | |
1916 | ret = -EFAULT; | |
1917 | goto out; | |
f453ba04 | 1918 | } |
7f88a9be | 1919 | copied++; |
f453ba04 DA |
1920 | } |
1921 | } | |
1922 | out_resp->count_props = props_count; | |
1923 | ||
1924 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1925 | copied = 0; | |
81f6c7f8 | 1926 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1927 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1928 | if (connector->encoder_ids[i] != 0) { | |
1929 | if (put_user(connector->encoder_ids[i], | |
1930 | encoder_ptr + copied)) { | |
1931 | ret = -EFAULT; | |
1932 | goto out; | |
1933 | } | |
1934 | copied++; | |
1935 | } | |
1936 | } | |
1937 | } | |
1938 | out_resp->count_encoders = encoders_count; | |
1939 | ||
1940 | out: | |
7b24056b DV |
1941 | mutex_unlock(&dev->mode_config.mutex); |
1942 | ||
f453ba04 DA |
1943 | return ret; |
1944 | } | |
1945 | ||
c8e32cc1 DV |
1946 | /** |
1947 | * drm_mode_getencoder - get encoder configuration | |
1948 | * @dev: drm device for the ioctl | |
1949 | * @data: data pointer for the ioctl | |
1950 | * @file_priv: drm file for the ioctl call | |
1951 | * | |
1952 | * Construct a encoder configuration structure to return to the user. | |
1953 | * | |
1954 | * Called by the user via ioctl. | |
1955 | * | |
1956 | * Returns: | |
1957 | * Zero on success, errno on failure. | |
1958 | */ | |
f453ba04 DA |
1959 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
1960 | struct drm_file *file_priv) | |
1961 | { | |
1962 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 DA |
1963 | struct drm_encoder *encoder; |
1964 | int ret = 0; | |
1965 | ||
fb3b06c8 DA |
1966 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1967 | return -EINVAL; | |
1968 | ||
84849903 | 1969 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
1970 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
1971 | if (!encoder) { | |
f27657f2 | 1972 | ret = -ENOENT; |
f453ba04 DA |
1973 | goto out; |
1974 | } | |
f453ba04 DA |
1975 | |
1976 | if (encoder->crtc) | |
1977 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1978 | else | |
1979 | enc_resp->crtc_id = 0; | |
1980 | enc_resp->encoder_type = encoder->encoder_type; | |
1981 | enc_resp->encoder_id = encoder->base.id; | |
1982 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1983 | enc_resp->possible_clones = encoder->possible_clones; | |
1984 | ||
1985 | out: | |
84849903 | 1986 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1987 | return ret; |
1988 | } | |
1989 | ||
8cf5c917 | 1990 | /** |
c8e32cc1 | 1991 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
1992 | * @dev: DRM device |
1993 | * @data: ioctl data | |
1994 | * @file_priv: DRM file info | |
1995 | * | |
c8e32cc1 DV |
1996 | * Construct a list of plane ids to return to the user. |
1997 | * | |
1998 | * Called by the user via ioctl. | |
1999 | * | |
2000 | * Returns: | |
2001 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2002 | */ |
2003 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2004 | struct drm_file *file_priv) |
8cf5c917 JB |
2005 | { |
2006 | struct drm_mode_get_plane_res *plane_resp = data; | |
2007 | struct drm_mode_config *config; | |
2008 | struct drm_plane *plane; | |
2009 | uint32_t __user *plane_ptr; | |
2010 | int copied = 0, ret = 0; | |
681e7ec7 | 2011 | unsigned num_planes; |
8cf5c917 JB |
2012 | |
2013 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2014 | return -EINVAL; | |
2015 | ||
84849903 | 2016 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2017 | config = &dev->mode_config; |
2018 | ||
681e7ec7 MR |
2019 | if (file_priv->universal_planes) |
2020 | num_planes = config->num_total_plane; | |
2021 | else | |
2022 | num_planes = config->num_overlay_plane; | |
2023 | ||
8cf5c917 JB |
2024 | /* |
2025 | * This ioctl is called twice, once to determine how much space is | |
2026 | * needed, and the 2nd time to fill it. | |
2027 | */ | |
681e7ec7 MR |
2028 | if (num_planes && |
2029 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2030 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
2031 | |
2032 | list_for_each_entry(plane, &config->plane_list, head) { | |
681e7ec7 MR |
2033 | /* |
2034 | * Unless userspace set the 'universal planes' | |
2035 | * capability bit, only advertise overlays. | |
2036 | */ | |
2037 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2038 | !file_priv->universal_planes) | |
e27dde3e MR |
2039 | continue; |
2040 | ||
8cf5c917 JB |
2041 | if (put_user(plane->base.id, plane_ptr + copied)) { |
2042 | ret = -EFAULT; | |
2043 | goto out; | |
2044 | } | |
2045 | copied++; | |
2046 | } | |
2047 | } | |
681e7ec7 | 2048 | plane_resp->count_planes = num_planes; |
8cf5c917 JB |
2049 | |
2050 | out: | |
84849903 | 2051 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2052 | return ret; |
2053 | } | |
2054 | ||
2055 | /** | |
c8e32cc1 | 2056 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2057 | * @dev: DRM device |
2058 | * @data: ioctl data | |
2059 | * @file_priv: DRM file info | |
2060 | * | |
c8e32cc1 DV |
2061 | * Construct a plane configuration structure to return to the user. |
2062 | * | |
2063 | * Called by the user via ioctl. | |
2064 | * | |
2065 | * Returns: | |
2066 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2067 | */ |
2068 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2069 | struct drm_file *file_priv) |
8cf5c917 JB |
2070 | { |
2071 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2072 | struct drm_plane *plane; |
2073 | uint32_t __user *format_ptr; | |
2074 | int ret = 0; | |
2075 | ||
2076 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2077 | return -EINVAL; | |
2078 | ||
84849903 | 2079 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2080 | plane = drm_plane_find(dev, plane_resp->plane_id); |
2081 | if (!plane) { | |
8cf5c917 JB |
2082 | ret = -ENOENT; |
2083 | goto out; | |
2084 | } | |
8cf5c917 JB |
2085 | |
2086 | if (plane->crtc) | |
2087 | plane_resp->crtc_id = plane->crtc->base.id; | |
2088 | else | |
2089 | plane_resp->crtc_id = 0; | |
2090 | ||
2091 | if (plane->fb) | |
2092 | plane_resp->fb_id = plane->fb->base.id; | |
2093 | else | |
2094 | plane_resp->fb_id = 0; | |
2095 | ||
2096 | plane_resp->plane_id = plane->base.id; | |
2097 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2098 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2099 | |
2100 | /* | |
2101 | * This ioctl is called twice, once to determine how much space is | |
2102 | * needed, and the 2nd time to fill it. | |
2103 | */ | |
2104 | if (plane->format_count && | |
2105 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2106 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2107 | if (copy_to_user(format_ptr, |
2108 | plane->format_types, | |
2109 | sizeof(uint32_t) * plane->format_count)) { | |
2110 | ret = -EFAULT; | |
2111 | goto out; | |
2112 | } | |
2113 | } | |
2114 | plane_resp->count_format_types = plane->format_count; | |
2115 | ||
2116 | out: | |
84849903 | 2117 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2118 | return ret; |
2119 | } | |
2120 | ||
2121 | /** | |
c8e32cc1 | 2122 | * drm_mode_setplane - configure a plane's configuration |
8cf5c917 JB |
2123 | * @dev: DRM device |
2124 | * @data: ioctl data* | |
065a50ed | 2125 | * @file_priv: DRM file info |
8cf5c917 | 2126 | * |
c8e32cc1 | 2127 | * Set plane configuration, including placement, fb, scaling, and other factors. |
8cf5c917 | 2128 | * Or pass a NULL fb to disable. |
c8e32cc1 DV |
2129 | * |
2130 | * Returns: | |
2131 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2132 | */ |
2133 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2134 | struct drm_file *file_priv) |
8cf5c917 JB |
2135 | { |
2136 | struct drm_mode_set_plane *plane_req = data; | |
8cf5c917 JB |
2137 | struct drm_plane *plane; |
2138 | struct drm_crtc *crtc; | |
6c2a7532 | 2139 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
8cf5c917 | 2140 | int ret = 0; |
42ef8789 | 2141 | unsigned int fb_width, fb_height; |
62443be6 | 2142 | int i; |
8cf5c917 JB |
2143 | |
2144 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2145 | return -EINVAL; | |
2146 | ||
8cf5c917 JB |
2147 | /* |
2148 | * First, find the plane, crtc, and fb objects. If not available, | |
2149 | * we don't bother to call the driver. | |
2150 | */ | |
a2b34e22 RC |
2151 | plane = drm_plane_find(dev, plane_req->plane_id); |
2152 | if (!plane) { | |
8cf5c917 JB |
2153 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2154 | plane_req->plane_id); | |
6c2a7532 | 2155 | return -ENOENT; |
8cf5c917 | 2156 | } |
8cf5c917 JB |
2157 | |
2158 | /* No fb means shut it down */ | |
2159 | if (!plane_req->fb_id) { | |
6c2a7532 DV |
2160 | drm_modeset_lock_all(dev); |
2161 | old_fb = plane->fb; | |
731cce48 DV |
2162 | ret = plane->funcs->disable_plane(plane); |
2163 | if (!ret) { | |
2164 | plane->crtc = NULL; | |
2165 | plane->fb = NULL; | |
2166 | } else { | |
2167 | old_fb = NULL; | |
2168 | } | |
6c2a7532 | 2169 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2170 | goto out; |
2171 | } | |
2172 | ||
a2b34e22 RC |
2173 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2174 | if (!crtc) { | |
8cf5c917 JB |
2175 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2176 | plane_req->crtc_id); | |
2177 | ret = -ENOENT; | |
2178 | goto out; | |
2179 | } | |
8cf5c917 | 2180 | |
7f994f3f MR |
2181 | /* Check whether this plane is usable on this CRTC */ |
2182 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2183 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2184 | ret = -EINVAL; | |
2185 | goto out; | |
2186 | } | |
2187 | ||
786b99ed DV |
2188 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
2189 | if (!fb) { | |
8cf5c917 JB |
2190 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
2191 | plane_req->fb_id); | |
2192 | ret = -ENOENT; | |
2193 | goto out; | |
2194 | } | |
8cf5c917 | 2195 | |
62443be6 VS |
2196 | /* Check whether this plane supports the fb pixel format. */ |
2197 | for (i = 0; i < plane->format_count; i++) | |
2198 | if (fb->pixel_format == plane->format_types[i]) | |
2199 | break; | |
2200 | if (i == plane->format_count) { | |
6ba6d03e VS |
2201 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2202 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2203 | ret = -EINVAL; |
2204 | goto out; | |
2205 | } | |
2206 | ||
42ef8789 VS |
2207 | fb_width = fb->width << 16; |
2208 | fb_height = fb->height << 16; | |
2209 | ||
2210 | /* Make sure source coordinates are inside the fb. */ | |
2211 | if (plane_req->src_w > fb_width || | |
2212 | plane_req->src_x > fb_width - plane_req->src_w || | |
2213 | plane_req->src_h > fb_height || | |
2214 | plane_req->src_y > fb_height - plane_req->src_h) { | |
2215 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2216 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2217 | plane_req->src_w >> 16, | |
2218 | ((plane_req->src_w & 0xffff) * 15625) >> 10, | |
2219 | plane_req->src_h >> 16, | |
2220 | ((plane_req->src_h & 0xffff) * 15625) >> 10, | |
2221 | plane_req->src_x >> 16, | |
2222 | ((plane_req->src_x & 0xffff) * 15625) >> 10, | |
2223 | plane_req->src_y >> 16, | |
2224 | ((plane_req->src_y & 0xffff) * 15625) >> 10); | |
2225 | ret = -ENOSPC; | |
2226 | goto out; | |
2227 | } | |
2228 | ||
687a0400 VS |
2229 | /* Give drivers some help against integer overflows */ |
2230 | if (plane_req->crtc_w > INT_MAX || | |
2231 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2232 | plane_req->crtc_h > INT_MAX || | |
2233 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2234 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2235 | plane_req->crtc_w, plane_req->crtc_h, | |
2236 | plane_req->crtc_x, plane_req->crtc_y); | |
2237 | ret = -ERANGE; | |
2238 | goto out; | |
2239 | } | |
2240 | ||
6c2a7532 | 2241 | drm_modeset_lock_all(dev); |
0fe27f06 | 2242 | old_fb = plane->fb; |
8cf5c917 JB |
2243 | ret = plane->funcs->update_plane(plane, crtc, fb, |
2244 | plane_req->crtc_x, plane_req->crtc_y, | |
2245 | plane_req->crtc_w, plane_req->crtc_h, | |
2246 | plane_req->src_x, plane_req->src_y, | |
2247 | plane_req->src_w, plane_req->src_h); | |
2248 | if (!ret) { | |
2249 | plane->crtc = crtc; | |
2250 | plane->fb = fb; | |
35f8badc | 2251 | fb = NULL; |
0fe27f06 DV |
2252 | } else { |
2253 | old_fb = NULL; | |
8cf5c917 | 2254 | } |
6c2a7532 | 2255 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2256 | |
2257 | out: | |
6c2a7532 DV |
2258 | if (fb) |
2259 | drm_framebuffer_unreference(fb); | |
2260 | if (old_fb) | |
2261 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
2262 | |
2263 | return ret; | |
2264 | } | |
2265 | ||
2d13b679 DV |
2266 | /** |
2267 | * drm_mode_set_config_internal - helper to call ->set_config | |
2268 | * @set: modeset config to set | |
2269 | * | |
2270 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2271 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2272 | * |
2273 | * Returns: | |
2274 | * Zero on success, errno on failure. | |
2d13b679 DV |
2275 | */ |
2276 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2277 | { | |
2278 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2279 | struct drm_framebuffer *fb; |
2280 | struct drm_crtc *tmp; | |
b0d12325 DV |
2281 | int ret; |
2282 | ||
5cef29aa DV |
2283 | /* |
2284 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2285 | * connectors from it), hence we need to refcount the fbs across all | |
2286 | * crtcs. Atomic modeset will have saner semantics ... | |
2287 | */ | |
2288 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
f4510a27 | 2289 | tmp->old_fb = tmp->primary->fb; |
5cef29aa | 2290 | |
b0d12325 | 2291 | fb = set->fb; |
2d13b679 | 2292 | |
b0d12325 DV |
2293 | ret = crtc->funcs->set_config(set); |
2294 | if (ret == 0) { | |
e13161af | 2295 | crtc->primary->crtc = crtc; |
0fe27f06 | 2296 | crtc->primary->fb = fb; |
5cef29aa | 2297 | } |
cc85e121 | 2298 | |
5cef29aa | 2299 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2300 | if (tmp->primary->fb) |
2301 | drm_framebuffer_reference(tmp->primary->fb); | |
5cef29aa DV |
2302 | if (tmp->old_fb) |
2303 | drm_framebuffer_unreference(tmp->old_fb); | |
b0d12325 DV |
2304 | } |
2305 | ||
2306 | return ret; | |
2d13b679 DV |
2307 | } |
2308 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2309 | ||
af93629d MR |
2310 | /** |
2311 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2312 | * CRTC viewport | |
2313 | * @crtc: CRTC that framebuffer will be displayed on | |
2314 | * @x: x panning | |
2315 | * @y: y panning | |
2316 | * @mode: mode that framebuffer will be displayed under | |
2317 | * @fb: framebuffer to check size of | |
c11e9283 | 2318 | */ |
af93629d MR |
2319 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2320 | int x, int y, | |
2321 | const struct drm_display_mode *mode, | |
2322 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2323 | |
2324 | { | |
2325 | int hdisplay, vdisplay; | |
2326 | ||
2327 | hdisplay = mode->hdisplay; | |
2328 | vdisplay = mode->vdisplay; | |
2329 | ||
a0c1bbb0 DL |
2330 | if (drm_mode_is_stereo(mode)) { |
2331 | struct drm_display_mode adjusted = *mode; | |
2332 | ||
2333 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2334 | hdisplay = adjusted.crtc_hdisplay; | |
2335 | vdisplay = adjusted.crtc_vdisplay; | |
2336 | } | |
2337 | ||
c11e9283 DL |
2338 | if (crtc->invert_dimensions) |
2339 | swap(hdisplay, vdisplay); | |
2340 | ||
2341 | if (hdisplay > fb->width || | |
2342 | vdisplay > fb->height || | |
2343 | x > fb->width - hdisplay || | |
2344 | y > fb->height - vdisplay) { | |
2345 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2346 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2347 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2348 | return -ENOSPC; | |
2349 | } | |
2350 | ||
2351 | return 0; | |
2352 | } | |
af93629d | 2353 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2354 | |
f453ba04 DA |
2355 | /** |
2356 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2357 | * @dev: drm device for the ioctl |
2358 | * @data: data pointer for the ioctl | |
2359 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2360 | * |
f453ba04 DA |
2361 | * Build a new CRTC configuration based on user request. |
2362 | * | |
2363 | * Called by the user via ioctl. | |
2364 | * | |
c8e32cc1 | 2365 | * Returns: |
f453ba04 DA |
2366 | * Zero on success, errno on failure. |
2367 | */ | |
2368 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2369 | struct drm_file *file_priv) | |
2370 | { | |
2371 | struct drm_mode_config *config = &dev->mode_config; | |
2372 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2373 | struct drm_crtc *crtc; |
f453ba04 DA |
2374 | struct drm_connector **connector_set = NULL, *connector; |
2375 | struct drm_framebuffer *fb = NULL; | |
2376 | struct drm_display_mode *mode = NULL; | |
2377 | struct drm_mode_set set; | |
2378 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2379 | int ret; |
f453ba04 DA |
2380 | int i; |
2381 | ||
fb3b06c8 DA |
2382 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2383 | return -EINVAL; | |
2384 | ||
1d97e915 VS |
2385 | /* For some reason crtc x/y offsets are signed internally. */ |
2386 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2387 | return -ERANGE; | |
2388 | ||
84849903 | 2389 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2390 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2391 | if (!crtc) { | |
58367ed6 | 2392 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2393 | ret = -ENOENT; |
f453ba04 DA |
2394 | goto out; |
2395 | } | |
9440106b | 2396 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2397 | |
2398 | if (crtc_req->mode_valid) { | |
2399 | /* If we have a mode we need a framebuffer. */ | |
2400 | /* If we pass -1, set the mode with the currently bound fb */ | |
2401 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2402 | if (!crtc->primary->fb) { |
6653cc8d VS |
2403 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2404 | ret = -EINVAL; | |
2405 | goto out; | |
f453ba04 | 2406 | } |
f4510a27 | 2407 | fb = crtc->primary->fb; |
b0d12325 DV |
2408 | /* Make refcounting symmetric with the lookup path. */ |
2409 | drm_framebuffer_reference(fb); | |
f453ba04 | 2410 | } else { |
786b99ed DV |
2411 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2412 | if (!fb) { | |
58367ed6 ZY |
2413 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2414 | crtc_req->fb_id); | |
37c4e705 | 2415 | ret = -ENOENT; |
f453ba04 DA |
2416 | goto out; |
2417 | } | |
f453ba04 DA |
2418 | } |
2419 | ||
2420 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2421 | if (!mode) { |
2422 | ret = -ENOMEM; | |
2423 | goto out; | |
2424 | } | |
2425 | ||
90367bf6 VS |
2426 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2427 | if (ret) { | |
2428 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2429 | goto out; | |
2430 | } | |
2431 | ||
f453ba04 | 2432 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2433 | |
c11e9283 DL |
2434 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2435 | mode, fb); | |
2436 | if (ret) | |
5f61bb42 | 2437 | goto out; |
c11e9283 | 2438 | |
f453ba04 DA |
2439 | } |
2440 | ||
2441 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2442 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2443 | ret = -EINVAL; |
2444 | goto out; | |
2445 | } | |
2446 | ||
7781de74 | 2447 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2448 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2449 | crtc_req->count_connectors); |
2450 | ret = -EINVAL; | |
2451 | goto out; | |
2452 | } | |
2453 | ||
2454 | if (crtc_req->count_connectors > 0) { | |
2455 | u32 out_id; | |
2456 | ||
2457 | /* Avoid unbounded kernel memory allocation */ | |
2458 | if (crtc_req->count_connectors > config->num_connector) { | |
2459 | ret = -EINVAL; | |
2460 | goto out; | |
2461 | } | |
2462 | ||
2463 | connector_set = kmalloc(crtc_req->count_connectors * | |
2464 | sizeof(struct drm_connector *), | |
2465 | GFP_KERNEL); | |
2466 | if (!connector_set) { | |
2467 | ret = -ENOMEM; | |
2468 | goto out; | |
2469 | } | |
2470 | ||
2471 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2472 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2473 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2474 | ret = -EFAULT; | |
2475 | goto out; | |
2476 | } | |
2477 | ||
a2b34e22 RC |
2478 | connector = drm_connector_find(dev, out_id); |
2479 | if (!connector) { | |
58367ed6 ZY |
2480 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2481 | out_id); | |
f27657f2 | 2482 | ret = -ENOENT; |
f453ba04 DA |
2483 | goto out; |
2484 | } | |
9440106b JG |
2485 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2486 | connector->base.id, | |
25933820 | 2487 | connector->name); |
f453ba04 DA |
2488 | |
2489 | connector_set[i] = connector; | |
2490 | } | |
2491 | } | |
2492 | ||
2493 | set.crtc = crtc; | |
2494 | set.x = crtc_req->x; | |
2495 | set.y = crtc_req->y; | |
2496 | set.mode = mode; | |
2497 | set.connectors = connector_set; | |
2498 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2499 | set.fb = fb; |
2d13b679 | 2500 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2501 | |
2502 | out: | |
b0d12325 DV |
2503 | if (fb) |
2504 | drm_framebuffer_unreference(fb); | |
2505 | ||
f453ba04 | 2506 | kfree(connector_set); |
ee34ab5b | 2507 | drm_mode_destroy(dev, mode); |
84849903 | 2508 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2509 | return ret; |
2510 | } | |
2511 | ||
4c813d4d DA |
2512 | static int drm_mode_cursor_common(struct drm_device *dev, |
2513 | struct drm_mode_cursor2 *req, | |
2514 | struct drm_file *file_priv) | |
f453ba04 | 2515 | { |
f453ba04 DA |
2516 | struct drm_crtc *crtc; |
2517 | int ret = 0; | |
2518 | ||
fb3b06c8 DA |
2519 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2520 | return -EINVAL; | |
2521 | ||
7c4eaca4 | 2522 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2523 | return -EINVAL; |
f453ba04 | 2524 | |
a2b34e22 RC |
2525 | crtc = drm_crtc_find(dev, req->crtc_id); |
2526 | if (!crtc) { | |
58367ed6 | 2527 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2528 | return -ENOENT; |
f453ba04 | 2529 | } |
f453ba04 | 2530 | |
51fd371b | 2531 | drm_modeset_lock(&crtc->mutex, NULL); |
f453ba04 | 2532 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2533 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2534 | ret = -ENXIO; |
2535 | goto out; | |
2536 | } | |
2537 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2538 | if (crtc->funcs->cursor_set2) |
2539 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2540 | req->width, req->height, req->hot_x, req->hot_y); | |
2541 | else | |
2542 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2543 | req->width, req->height); | |
f453ba04 DA |
2544 | } |
2545 | ||
2546 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2547 | if (crtc->funcs->cursor_move) { | |
2548 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2549 | } else { | |
f453ba04 DA |
2550 | ret = -EFAULT; |
2551 | goto out; | |
2552 | } | |
2553 | } | |
2554 | out: | |
51fd371b | 2555 | drm_modeset_unlock(&crtc->mutex); |
dac35663 | 2556 | |
f453ba04 | 2557 | return ret; |
4c813d4d DA |
2558 | |
2559 | } | |
c8e32cc1 DV |
2560 | |
2561 | ||
2562 | /** | |
2563 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2564 | * @dev: drm device for the ioctl | |
2565 | * @data: data pointer for the ioctl | |
2566 | * @file_priv: drm file for the ioctl call | |
2567 | * | |
2568 | * Set the cursor configuration based on user request. | |
2569 | * | |
2570 | * Called by the user via ioctl. | |
2571 | * | |
2572 | * Returns: | |
2573 | * Zero on success, errno on failure. | |
2574 | */ | |
4c813d4d | 2575 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2576 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2577 | { |
2578 | struct drm_mode_cursor *req = data; | |
2579 | struct drm_mode_cursor2 new_req; | |
2580 | ||
2581 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2582 | new_req.hot_x = new_req.hot_y = 0; | |
2583 | ||
2584 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2585 | } | |
2586 | ||
c8e32cc1 DV |
2587 | /** |
2588 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2589 | * @dev: drm device for the ioctl | |
2590 | * @data: data pointer for the ioctl | |
2591 | * @file_priv: drm file for the ioctl call | |
2592 | * | |
2593 | * Set the cursor configuration based on user request. This implements the 2nd | |
2594 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2595 | * the hotspot of the pointer. | |
2596 | * | |
2597 | * Called by the user via ioctl. | |
2598 | * | |
2599 | * Returns: | |
2600 | * Zero on success, errno on failure. | |
2601 | */ | |
4c813d4d DA |
2602 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2603 | void *data, struct drm_file *file_priv) | |
2604 | { | |
2605 | struct drm_mode_cursor2 *req = data; | |
2606 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2607 | } |
2608 | ||
c8e32cc1 DV |
2609 | /** |
2610 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2611 | * @bpp: bits per pixels | |
2612 | * @depth: bit depth per pixel | |
2613 | * | |
2614 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2615 | * Useful in fbdev emulation code, since that deals in those values. | |
2616 | */ | |
308e5bcb JB |
2617 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2618 | { | |
2619 | uint32_t fmt; | |
2620 | ||
2621 | switch (bpp) { | |
2622 | case 8: | |
d84f031b | 2623 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2624 | break; |
2625 | case 16: | |
2626 | if (depth == 15) | |
04b3924d | 2627 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2628 | else |
04b3924d | 2629 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2630 | break; |
2631 | case 24: | |
04b3924d | 2632 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2633 | break; |
2634 | case 32: | |
2635 | if (depth == 24) | |
04b3924d | 2636 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2637 | else if (depth == 30) |
04b3924d | 2638 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2639 | else |
04b3924d | 2640 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2641 | break; |
2642 | default: | |
04b3924d VS |
2643 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2644 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2645 | break; |
2646 | } | |
2647 | ||
2648 | return fmt; | |
2649 | } | |
2650 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2651 | ||
f453ba04 DA |
2652 | /** |
2653 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2654 | * @dev: drm device for the ioctl |
2655 | * @data: data pointer for the ioctl | |
2656 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2657 | * |
c8e32cc1 DV |
2658 | * Add a new FB to the specified CRTC, given a user request. This is the |
2659 | * original addfb ioclt which only supported RGB formats. | |
f453ba04 DA |
2660 | * |
2661 | * Called by the user via ioctl. | |
2662 | * | |
c8e32cc1 | 2663 | * Returns: |
f453ba04 DA |
2664 | * Zero on success, errno on failure. |
2665 | */ | |
2666 | int drm_mode_addfb(struct drm_device *dev, | |
2667 | void *data, struct drm_file *file_priv) | |
2668 | { | |
308e5bcb JB |
2669 | struct drm_mode_fb_cmd *or = data; |
2670 | struct drm_mode_fb_cmd2 r = {}; | |
2671 | struct drm_mode_config *config = &dev->mode_config; | |
2672 | struct drm_framebuffer *fb; | |
2673 | int ret = 0; | |
2674 | ||
2675 | /* Use new struct with format internally */ | |
2676 | r.fb_id = or->fb_id; | |
2677 | r.width = or->width; | |
2678 | r.height = or->height; | |
2679 | r.pitches[0] = or->pitch; | |
2680 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2681 | r.handles[0] = or->handle; | |
2682 | ||
2683 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2684 | return -EINVAL; | |
2685 | ||
acb4b992 | 2686 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2687 | return -EINVAL; |
acb4b992 JB |
2688 | |
2689 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2690 | return -EINVAL; |
308e5bcb | 2691 | |
308e5bcb JB |
2692 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2693 | if (IS_ERR(fb)) { | |
1aa1b11c | 2694 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2695 | return PTR_ERR(fb); |
308e5bcb JB |
2696 | } |
2697 | ||
4b096ac1 | 2698 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2699 | or->fb_id = fb->base.id; |
2700 | list_add(&fb->filp_head, &file_priv->fbs); | |
2701 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2702 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2703 | |
308e5bcb JB |
2704 | return ret; |
2705 | } | |
2706 | ||
cff91b62 | 2707 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2708 | { |
2709 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2710 | ||
2711 | switch (format) { | |
2712 | case DRM_FORMAT_C8: | |
2713 | case DRM_FORMAT_RGB332: | |
2714 | case DRM_FORMAT_BGR233: | |
2715 | case DRM_FORMAT_XRGB4444: | |
2716 | case DRM_FORMAT_XBGR4444: | |
2717 | case DRM_FORMAT_RGBX4444: | |
2718 | case DRM_FORMAT_BGRX4444: | |
2719 | case DRM_FORMAT_ARGB4444: | |
2720 | case DRM_FORMAT_ABGR4444: | |
2721 | case DRM_FORMAT_RGBA4444: | |
2722 | case DRM_FORMAT_BGRA4444: | |
2723 | case DRM_FORMAT_XRGB1555: | |
2724 | case DRM_FORMAT_XBGR1555: | |
2725 | case DRM_FORMAT_RGBX5551: | |
2726 | case DRM_FORMAT_BGRX5551: | |
2727 | case DRM_FORMAT_ARGB1555: | |
2728 | case DRM_FORMAT_ABGR1555: | |
2729 | case DRM_FORMAT_RGBA5551: | |
2730 | case DRM_FORMAT_BGRA5551: | |
2731 | case DRM_FORMAT_RGB565: | |
2732 | case DRM_FORMAT_BGR565: | |
2733 | case DRM_FORMAT_RGB888: | |
2734 | case DRM_FORMAT_BGR888: | |
2735 | case DRM_FORMAT_XRGB8888: | |
2736 | case DRM_FORMAT_XBGR8888: | |
2737 | case DRM_FORMAT_RGBX8888: | |
2738 | case DRM_FORMAT_BGRX8888: | |
2739 | case DRM_FORMAT_ARGB8888: | |
2740 | case DRM_FORMAT_ABGR8888: | |
2741 | case DRM_FORMAT_RGBA8888: | |
2742 | case DRM_FORMAT_BGRA8888: | |
2743 | case DRM_FORMAT_XRGB2101010: | |
2744 | case DRM_FORMAT_XBGR2101010: | |
2745 | case DRM_FORMAT_RGBX1010102: | |
2746 | case DRM_FORMAT_BGRX1010102: | |
2747 | case DRM_FORMAT_ARGB2101010: | |
2748 | case DRM_FORMAT_ABGR2101010: | |
2749 | case DRM_FORMAT_RGBA1010102: | |
2750 | case DRM_FORMAT_BGRA1010102: | |
2751 | case DRM_FORMAT_YUYV: | |
2752 | case DRM_FORMAT_YVYU: | |
2753 | case DRM_FORMAT_UYVY: | |
2754 | case DRM_FORMAT_VYUY: | |
2755 | case DRM_FORMAT_AYUV: | |
2756 | case DRM_FORMAT_NV12: | |
2757 | case DRM_FORMAT_NV21: | |
2758 | case DRM_FORMAT_NV16: | |
2759 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2760 | case DRM_FORMAT_NV24: |
2761 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2762 | case DRM_FORMAT_YUV410: |
2763 | case DRM_FORMAT_YVU410: | |
2764 | case DRM_FORMAT_YUV411: | |
2765 | case DRM_FORMAT_YVU411: | |
2766 | case DRM_FORMAT_YUV420: | |
2767 | case DRM_FORMAT_YVU420: | |
2768 | case DRM_FORMAT_YUV422: | |
2769 | case DRM_FORMAT_YVU422: | |
2770 | case DRM_FORMAT_YUV444: | |
2771 | case DRM_FORMAT_YVU444: | |
2772 | return 0; | |
2773 | default: | |
23c453a4 VS |
2774 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
2775 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
2776 | return -EINVAL; |
2777 | } | |
2778 | } | |
2779 | ||
cff91b62 | 2780 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2781 | { |
2782 | int ret, hsub, vsub, num_planes, i; | |
2783 | ||
2784 | ret = format_check(r); | |
2785 | if (ret) { | |
6ba6d03e VS |
2786 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
2787 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
2788 | return ret; |
2789 | } | |
2790 | ||
2791 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2792 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2793 | num_planes = drm_format_num_planes(r->pixel_format); | |
2794 | ||
2795 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2796 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2797 | return -EINVAL; |
2798 | } | |
2799 | ||
2800 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2801 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2802 | return -EINVAL; |
2803 | } | |
2804 | ||
2805 | for (i = 0; i < num_planes; i++) { | |
2806 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2807 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2808 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2809 | |
2810 | if (!r->handles[i]) { | |
1aa1b11c | 2811 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2812 | return -EINVAL; |
2813 | } | |
2814 | ||
b180b5d1 VS |
2815 | if ((uint64_t) width * cpp > UINT_MAX) |
2816 | return -ERANGE; | |
2817 | ||
2818 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2819 | return -ERANGE; | |
2820 | ||
2821 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2822 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2823 | return -EINVAL; |
2824 | } | |
2825 | } | |
2826 | ||
2827 | return 0; | |
2828 | } | |
2829 | ||
308e5bcb JB |
2830 | /** |
2831 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
065a50ed DV |
2832 | * @dev: drm device for the ioctl |
2833 | * @data: data pointer for the ioctl | |
2834 | * @file_priv: drm file for the ioctl call | |
308e5bcb | 2835 | * |
c8e32cc1 DV |
2836 | * Add a new FB to the specified CRTC, given a user request with format. This is |
2837 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
2838 | * and uses fourcc codes as pixel format specifiers. | |
308e5bcb JB |
2839 | * |
2840 | * Called by the user via ioctl. | |
2841 | * | |
c8e32cc1 | 2842 | * Returns: |
308e5bcb JB |
2843 | * Zero on success, errno on failure. |
2844 | */ | |
2845 | int drm_mode_addfb2(struct drm_device *dev, | |
2846 | void *data, struct drm_file *file_priv) | |
2847 | { | |
2848 | struct drm_mode_fb_cmd2 *r = data; | |
f453ba04 DA |
2849 | struct drm_mode_config *config = &dev->mode_config; |
2850 | struct drm_framebuffer *fb; | |
4a1b0714 | 2851 | int ret; |
f453ba04 | 2852 | |
fb3b06c8 DA |
2853 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2854 | return -EINVAL; | |
2855 | ||
e3cc3520 VS |
2856 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2857 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
2858 | return -EINVAL; | |
2859 | } | |
2860 | ||
f453ba04 | 2861 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2862 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2863 | r->width, config->min_width, config->max_width); |
f453ba04 DA |
2864 | return -EINVAL; |
2865 | } | |
2866 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2867 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2868 | r->height, config->min_height, config->max_height); |
f453ba04 DA |
2869 | return -EINVAL; |
2870 | } | |
2871 | ||
d1b45d5f VS |
2872 | ret = framebuffer_check(r); |
2873 | if (ret) | |
935b5977 | 2874 | return ret; |
935b5977 | 2875 | |
f453ba04 | 2876 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2877 | if (IS_ERR(fb)) { |
1aa1b11c | 2878 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2879 | return PTR_ERR(fb); |
f453ba04 DA |
2880 | } |
2881 | ||
4b096ac1 | 2882 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2883 | r->fb_id = fb->base.id; |
f453ba04 | 2884 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2885 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2886 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2887 | |
4b096ac1 | 2888 | |
f453ba04 DA |
2889 | return ret; |
2890 | } | |
2891 | ||
2892 | /** | |
2893 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2894 | * @dev: drm device for the ioctl |
2895 | * @data: data pointer for the ioctl | |
2896 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2897 | * |
f453ba04 DA |
2898 | * Remove the FB specified by the user. |
2899 | * | |
2900 | * Called by the user via ioctl. | |
2901 | * | |
c8e32cc1 | 2902 | * Returns: |
f453ba04 DA |
2903 | * Zero on success, errno on failure. |
2904 | */ | |
2905 | int drm_mode_rmfb(struct drm_device *dev, | |
2906 | void *data, struct drm_file *file_priv) | |
2907 | { | |
f453ba04 DA |
2908 | struct drm_framebuffer *fb = NULL; |
2909 | struct drm_framebuffer *fbl = NULL; | |
2910 | uint32_t *id = data; | |
f453ba04 DA |
2911 | int found = 0; |
2912 | ||
fb3b06c8 DA |
2913 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2914 | return -EINVAL; | |
2915 | ||
4b096ac1 | 2916 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2917 | mutex_lock(&dev->mode_config.fb_lock); |
2918 | fb = __drm_framebuffer_lookup(dev, *id); | |
2919 | if (!fb) | |
2920 | goto fail_lookup; | |
2921 | ||
f453ba04 DA |
2922 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2923 | if (fb == fbl) | |
2924 | found = 1; | |
2b677e8c DV |
2925 | if (!found) |
2926 | goto fail_lookup; | |
2927 | ||
2928 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2929 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2930 | |
4b096ac1 | 2931 | list_del_init(&fb->filp_head); |
2b677e8c | 2932 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2933 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2934 | |
4b096ac1 | 2935 | drm_framebuffer_remove(fb); |
4b096ac1 | 2936 | |
2b677e8c DV |
2937 | return 0; |
2938 | ||
2939 | fail_lookup: | |
2940 | mutex_unlock(&dev->mode_config.fb_lock); | |
2941 | mutex_unlock(&file_priv->fbs_lock); | |
2942 | ||
37c4e705 | 2943 | return -ENOENT; |
f453ba04 DA |
2944 | } |
2945 | ||
2946 | /** | |
2947 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2948 | * @dev: drm device for the ioctl |
2949 | * @data: data pointer for the ioctl | |
2950 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2951 | * |
f453ba04 DA |
2952 | * Lookup the FB given its ID and return info about it. |
2953 | * | |
2954 | * Called by the user via ioctl. | |
2955 | * | |
c8e32cc1 | 2956 | * Returns: |
f453ba04 DA |
2957 | * Zero on success, errno on failure. |
2958 | */ | |
2959 | int drm_mode_getfb(struct drm_device *dev, | |
2960 | void *data, struct drm_file *file_priv) | |
2961 | { | |
2962 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 2963 | struct drm_framebuffer *fb; |
58c0dca1 | 2964 | int ret; |
f453ba04 | 2965 | |
fb3b06c8 DA |
2966 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2967 | return -EINVAL; | |
2968 | ||
786b99ed | 2969 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 2970 | if (!fb) |
37c4e705 | 2971 | return -ENOENT; |
f453ba04 DA |
2972 | |
2973 | r->height = fb->height; | |
2974 | r->width = fb->width; | |
2975 | r->depth = fb->depth; | |
2976 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 2977 | r->pitch = fb->pitches[0]; |
101b96f3 | 2978 | if (fb->funcs->create_handle) { |
09f308f7 | 2979 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 2980 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
2981 | ret = fb->funcs->create_handle(fb, file_priv, |
2982 | &r->handle); | |
2983 | } else { | |
2984 | /* GET_FB() is an unprivileged ioctl so we must not | |
2985 | * return a buffer-handle to non-master processes! For | |
2986 | * backwards-compatibility reasons, we cannot make | |
2987 | * GET_FB() privileged, so just return an invalid handle | |
2988 | * for non-masters. */ | |
2989 | r->handle = 0; | |
2990 | ret = 0; | |
2991 | } | |
2992 | } else { | |
af26ef3b | 2993 | ret = -ENODEV; |
101b96f3 | 2994 | } |
f453ba04 | 2995 | |
58c0dca1 DV |
2996 | drm_framebuffer_unreference(fb); |
2997 | ||
f453ba04 DA |
2998 | return ret; |
2999 | } | |
3000 | ||
c8e32cc1 DV |
3001 | /** |
3002 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3003 | * @dev: drm device for the ioctl | |
3004 | * @data: data pointer for the ioctl | |
3005 | * @file_priv: drm file for the ioctl call | |
3006 | * | |
3007 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3008 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3009 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3010 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3011 | * | |
3012 | * Modesetting drivers which always update the frontbuffer do not need to | |
3013 | * implement the corresponding ->dirty framebuffer callback. | |
3014 | * | |
3015 | * Called by the user via ioctl. | |
3016 | * | |
3017 | * Returns: | |
3018 | * Zero on success, errno on failure. | |
3019 | */ | |
884840aa JB |
3020 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3021 | void *data, struct drm_file *file_priv) | |
3022 | { | |
3023 | struct drm_clip_rect __user *clips_ptr; | |
3024 | struct drm_clip_rect *clips = NULL; | |
3025 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3026 | struct drm_framebuffer *fb; |
3027 | unsigned flags; | |
3028 | int num_clips; | |
4a1b0714 | 3029 | int ret; |
884840aa | 3030 | |
fb3b06c8 DA |
3031 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3032 | return -EINVAL; | |
3033 | ||
786b99ed | 3034 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3035 | if (!fb) |
37c4e705 | 3036 | return -ENOENT; |
884840aa JB |
3037 | |
3038 | num_clips = r->num_clips; | |
81f6c7f8 | 3039 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3040 | |
3041 | if (!num_clips != !clips_ptr) { | |
3042 | ret = -EINVAL; | |
3043 | goto out_err1; | |
3044 | } | |
3045 | ||
3046 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3047 | ||
3048 | /* If userspace annotates copy, clips must come in pairs */ | |
3049 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3050 | ret = -EINVAL; | |
3051 | goto out_err1; | |
3052 | } | |
3053 | ||
3054 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3055 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3056 | ret = -EINVAL; | |
3057 | goto out_err1; | |
3058 | } | |
884840aa JB |
3059 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3060 | if (!clips) { | |
3061 | ret = -ENOMEM; | |
3062 | goto out_err1; | |
3063 | } | |
3064 | ||
3065 | ret = copy_from_user(clips, clips_ptr, | |
3066 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3067 | if (ret) { |
3068 | ret = -EFAULT; | |
884840aa | 3069 | goto out_err2; |
e902a358 | 3070 | } |
884840aa JB |
3071 | } |
3072 | ||
3073 | if (fb->funcs->dirty) { | |
02b00162 TH |
3074 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3075 | clips, num_clips); | |
884840aa JB |
3076 | } else { |
3077 | ret = -ENOSYS; | |
884840aa JB |
3078 | } |
3079 | ||
3080 | out_err2: | |
3081 | kfree(clips); | |
3082 | out_err1: | |
4ccf097f DV |
3083 | drm_framebuffer_unreference(fb); |
3084 | ||
884840aa JB |
3085 | return ret; |
3086 | } | |
3087 | ||
3088 | ||
f453ba04 DA |
3089 | /** |
3090 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3091 | * @priv: drm file for the ioctl |
f453ba04 | 3092 | * |
f453ba04 DA |
3093 | * Destroy all the FBs associated with @filp. |
3094 | * | |
3095 | * Called by the user via ioctl. | |
3096 | * | |
c8e32cc1 | 3097 | * Returns: |
f453ba04 DA |
3098 | * Zero on success, errno on failure. |
3099 | */ | |
ea39f835 | 3100 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3101 | { |
f453ba04 DA |
3102 | struct drm_device *dev = priv->minor->dev; |
3103 | struct drm_framebuffer *fb, *tfb; | |
3104 | ||
4b096ac1 | 3105 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 3106 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3107 | |
3108 | mutex_lock(&dev->mode_config.fb_lock); | |
3109 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3110 | __drm_framebuffer_unregister(dev, fb); | |
3111 | mutex_unlock(&dev->mode_config.fb_lock); | |
3112 | ||
4b096ac1 | 3113 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3114 | |
3115 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3116 | drm_framebuffer_remove(fb); |
f453ba04 | 3117 | } |
4b096ac1 | 3118 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
3119 | } |
3120 | ||
c8e32cc1 DV |
3121 | /** |
3122 | * drm_property_create - create a new property type | |
3123 | * @dev: drm device | |
3124 | * @flags: flags specifying the property type | |
3125 | * @name: name of the property | |
3126 | * @num_values: number of pre-defined values | |
3127 | * | |
3128 | * This creates a new generic drm property which can then be attached to a drm | |
3129 | * object with drm_object_attach_property. The returned property object must be | |
3130 | * freed with drm_property_destroy. | |
3131 | * | |
3132 | * Returns: | |
3133 | * A pointer to the newly created property on success, NULL on failure. | |
3134 | */ | |
f453ba04 DA |
3135 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3136 | const char *name, int num_values) | |
3137 | { | |
3138 | struct drm_property *property = NULL; | |
6bfc56aa | 3139 | int ret; |
f453ba04 DA |
3140 | |
3141 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3142 | if (!property) | |
3143 | return NULL; | |
3144 | ||
98f75de4 RC |
3145 | property->dev = dev; |
3146 | ||
f453ba04 DA |
3147 | if (num_values) { |
3148 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3149 | if (!property->values) | |
3150 | goto fail; | |
3151 | } | |
3152 | ||
6bfc56aa VS |
3153 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3154 | if (ret) | |
3155 | goto fail; | |
3156 | ||
f453ba04 DA |
3157 | property->flags = flags; |
3158 | property->num_values = num_values; | |
3159 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3160 | ||
471dd2ef | 3161 | if (name) { |
f453ba04 | 3162 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3163 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3164 | } | |
f453ba04 DA |
3165 | |
3166 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3167 | |
3168 | WARN_ON(!drm_property_type_valid(property)); | |
3169 | ||
f453ba04 DA |
3170 | return property; |
3171 | fail: | |
6bfc56aa | 3172 | kfree(property->values); |
f453ba04 DA |
3173 | kfree(property); |
3174 | return NULL; | |
3175 | } | |
3176 | EXPORT_SYMBOL(drm_property_create); | |
3177 | ||
c8e32cc1 DV |
3178 | /** |
3179 | * drm_property_create - create a new enumeration property type | |
3180 | * @dev: drm device | |
3181 | * @flags: flags specifying the property type | |
3182 | * @name: name of the property | |
3183 | * @props: enumeration lists with property values | |
3184 | * @num_values: number of pre-defined values | |
3185 | * | |
3186 | * This creates a new generic drm property which can then be attached to a drm | |
3187 | * object with drm_object_attach_property. The returned property object must be | |
3188 | * freed with drm_property_destroy. | |
3189 | * | |
3190 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3191 | * properties. | |
3192 | * | |
3193 | * Returns: | |
3194 | * A pointer to the newly created property on success, NULL on failure. | |
3195 | */ | |
4a67d391 SH |
3196 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3197 | const char *name, | |
3198 | const struct drm_prop_enum_list *props, | |
3199 | int num_values) | |
3200 | { | |
3201 | struct drm_property *property; | |
3202 | int i, ret; | |
3203 | ||
3204 | flags |= DRM_MODE_PROP_ENUM; | |
3205 | ||
3206 | property = drm_property_create(dev, flags, name, num_values); | |
3207 | if (!property) | |
3208 | return NULL; | |
3209 | ||
3210 | for (i = 0; i < num_values; i++) { | |
3211 | ret = drm_property_add_enum(property, i, | |
3212 | props[i].type, | |
3213 | props[i].name); | |
3214 | if (ret) { | |
3215 | drm_property_destroy(dev, property); | |
3216 | return NULL; | |
3217 | } | |
3218 | } | |
3219 | ||
3220 | return property; | |
3221 | } | |
3222 | EXPORT_SYMBOL(drm_property_create_enum); | |
3223 | ||
c8e32cc1 DV |
3224 | /** |
3225 | * drm_property_create - create a new bitmask property type | |
3226 | * @dev: drm device | |
3227 | * @flags: flags specifying the property type | |
3228 | * @name: name of the property | |
3229 | * @props: enumeration lists with property bitflags | |
3230 | * @num_values: number of pre-defined values | |
3231 | * | |
3232 | * This creates a new generic drm property which can then be attached to a drm | |
3233 | * object with drm_object_attach_property. The returned property object must be | |
3234 | * freed with drm_property_destroy. | |
3235 | * | |
3236 | * Compared to plain enumeration properties userspace is allowed to set any | |
3237 | * or'ed together combination of the predefined property bitflag values | |
3238 | * | |
3239 | * Returns: | |
3240 | * A pointer to the newly created property on success, NULL on failure. | |
3241 | */ | |
49e27545 RC |
3242 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3243 | int flags, const char *name, | |
3244 | const struct drm_prop_enum_list *props, | |
3245 | int num_values) | |
3246 | { | |
3247 | struct drm_property *property; | |
3248 | int i, ret; | |
3249 | ||
3250 | flags |= DRM_MODE_PROP_BITMASK; | |
3251 | ||
3252 | property = drm_property_create(dev, flags, name, num_values); | |
3253 | if (!property) | |
3254 | return NULL; | |
3255 | ||
3256 | for (i = 0; i < num_values; i++) { | |
3257 | ret = drm_property_add_enum(property, i, | |
3258 | props[i].type, | |
3259 | props[i].name); | |
3260 | if (ret) { | |
3261 | drm_property_destroy(dev, property); | |
3262 | return NULL; | |
3263 | } | |
3264 | } | |
3265 | ||
3266 | return property; | |
3267 | } | |
3268 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3269 | ||
ebc44cf3 RC |
3270 | static struct drm_property *property_create_range(struct drm_device *dev, |
3271 | int flags, const char *name, | |
3272 | uint64_t min, uint64_t max) | |
3273 | { | |
3274 | struct drm_property *property; | |
3275 | ||
3276 | property = drm_property_create(dev, flags, name, 2); | |
3277 | if (!property) | |
3278 | return NULL; | |
3279 | ||
3280 | property->values[0] = min; | |
3281 | property->values[1] = max; | |
3282 | ||
3283 | return property; | |
3284 | } | |
3285 | ||
c8e32cc1 DV |
3286 | /** |
3287 | * drm_property_create - create a new ranged property type | |
3288 | * @dev: drm device | |
3289 | * @flags: flags specifying the property type | |
3290 | * @name: name of the property | |
3291 | * @min: minimum value of the property | |
3292 | * @max: maximum value of the property | |
3293 | * | |
3294 | * This creates a new generic drm property which can then be attached to a drm | |
3295 | * object with drm_object_attach_property. The returned property object must be | |
3296 | * freed with drm_property_destroy. | |
3297 | * | |
3298 | * Userspace is allowed to set any interger value in the (min, max) range | |
3299 | * inclusive. | |
3300 | * | |
3301 | * Returns: | |
3302 | * A pointer to the newly created property on success, NULL on failure. | |
3303 | */ | |
d9bc3c02 SH |
3304 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3305 | const char *name, | |
3306 | uint64_t min, uint64_t max) | |
3307 | { | |
ebc44cf3 RC |
3308 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3309 | name, min, max); | |
d9bc3c02 SH |
3310 | } |
3311 | EXPORT_SYMBOL(drm_property_create_range); | |
3312 | ||
ebc44cf3 RC |
3313 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3314 | int flags, const char *name, | |
3315 | int64_t min, int64_t max) | |
3316 | { | |
3317 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3318 | name, I642U64(min), I642U64(max)); | |
3319 | } | |
3320 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3321 | ||
98f75de4 RC |
3322 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3323 | int flags, const char *name, uint32_t type) | |
3324 | { | |
3325 | struct drm_property *property; | |
3326 | ||
3327 | flags |= DRM_MODE_PROP_OBJECT; | |
3328 | ||
3329 | property = drm_property_create(dev, flags, name, 1); | |
3330 | if (!property) | |
3331 | return NULL; | |
3332 | ||
3333 | property->values[0] = type; | |
3334 | ||
3335 | return property; | |
3336 | } | |
3337 | EXPORT_SYMBOL(drm_property_create_object); | |
3338 | ||
c8e32cc1 DV |
3339 | /** |
3340 | * drm_property_add_enum - add a possible value to an enumeration property | |
3341 | * @property: enumeration property to change | |
3342 | * @index: index of the new enumeration | |
3343 | * @value: value of the new enumeration | |
3344 | * @name: symbolic name of the new enumeration | |
3345 | * | |
3346 | * This functions adds enumerations to a property. | |
3347 | * | |
3348 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3349 | * to directly create the property with all enumerations already attached. | |
3350 | * | |
3351 | * Returns: | |
3352 | * Zero on success, error code on failure. | |
3353 | */ | |
f453ba04 DA |
3354 | int drm_property_add_enum(struct drm_property *property, int index, |
3355 | uint64_t value, const char *name) | |
3356 | { | |
3357 | struct drm_property_enum *prop_enum; | |
3358 | ||
5ea22f24 RC |
3359 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3360 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3361 | return -EINVAL; |
3362 | ||
3363 | /* | |
3364 | * Bitmask enum properties have the additional constraint of values | |
3365 | * from 0 to 63 | |
3366 | */ | |
5ea22f24 RC |
3367 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3368 | (value > 63)) | |
f453ba04 DA |
3369 | return -EINVAL; |
3370 | ||
3371 | if (!list_empty(&property->enum_blob_list)) { | |
3372 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3373 | if (prop_enum->value == value) { | |
3374 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3375 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3376 | return 0; | |
3377 | } | |
3378 | } | |
3379 | } | |
3380 | ||
3381 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3382 | if (!prop_enum) | |
3383 | return -ENOMEM; | |
3384 | ||
3385 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3386 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3387 | prop_enum->value = value; | |
3388 | ||
3389 | property->values[index] = value; | |
3390 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3391 | return 0; | |
3392 | } | |
3393 | EXPORT_SYMBOL(drm_property_add_enum); | |
3394 | ||
c8e32cc1 DV |
3395 | /** |
3396 | * drm_property_destroy - destroy a drm property | |
3397 | * @dev: drm device | |
3398 | * @property: property to destry | |
3399 | * | |
3400 | * This function frees a property including any attached resources like | |
3401 | * enumeration values. | |
3402 | */ | |
f453ba04 DA |
3403 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3404 | { | |
3405 | struct drm_property_enum *prop_enum, *pt; | |
3406 | ||
3407 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3408 | list_del(&prop_enum->head); | |
3409 | kfree(prop_enum); | |
3410 | } | |
3411 | ||
3412 | if (property->num_values) | |
3413 | kfree(property->values); | |
3414 | drm_mode_object_put(dev, &property->base); | |
3415 | list_del(&property->head); | |
3416 | kfree(property); | |
3417 | } | |
3418 | EXPORT_SYMBOL(drm_property_destroy); | |
3419 | ||
c8e32cc1 DV |
3420 | /** |
3421 | * drm_object_attach_property - attach a property to a modeset object | |
3422 | * @obj: drm modeset object | |
3423 | * @property: property to attach | |
3424 | * @init_val: initial value of the property | |
3425 | * | |
3426 | * This attaches the given property to the modeset object with the given initial | |
3427 | * value. Currently this function cannot fail since the properties are stored in | |
3428 | * a statically sized array. | |
3429 | */ | |
c543188a PZ |
3430 | void drm_object_attach_property(struct drm_mode_object *obj, |
3431 | struct drm_property *property, | |
3432 | uint64_t init_val) | |
3433 | { | |
7f88a9be | 3434 | int count = obj->properties->count; |
c543188a | 3435 | |
7f88a9be PZ |
3436 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3437 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3438 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3439 | "you see this message on the same object type.\n", | |
3440 | obj->type); | |
3441 | return; | |
c543188a PZ |
3442 | } |
3443 | ||
7f88a9be PZ |
3444 | obj->properties->ids[count] = property->base.id; |
3445 | obj->properties->values[count] = init_val; | |
3446 | obj->properties->count++; | |
c543188a PZ |
3447 | } |
3448 | EXPORT_SYMBOL(drm_object_attach_property); | |
3449 | ||
c8e32cc1 DV |
3450 | /** |
3451 | * drm_object_property_set_value - set the value of a property | |
3452 | * @obj: drm mode object to set property value for | |
3453 | * @property: property to set | |
3454 | * @val: value the property should be set to | |
3455 | * | |
3456 | * This functions sets a given property on a given object. This function only | |
3457 | * changes the software state of the property, it does not call into the | |
3458 | * driver's ->set_property callback. | |
3459 | * | |
3460 | * Returns: | |
3461 | * Zero on success, error code on failure. | |
3462 | */ | |
c543188a PZ |
3463 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3464 | struct drm_property *property, uint64_t val) | |
3465 | { | |
3466 | int i; | |
3467 | ||
7f88a9be | 3468 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3469 | if (obj->properties->ids[i] == property->base.id) { |
3470 | obj->properties->values[i] = val; | |
3471 | return 0; | |
3472 | } | |
3473 | } | |
3474 | ||
3475 | return -EINVAL; | |
3476 | } | |
3477 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3478 | ||
c8e32cc1 DV |
3479 | /** |
3480 | * drm_object_property_get_value - retrieve the value of a property | |
3481 | * @obj: drm mode object to get property value from | |
3482 | * @property: property to retrieve | |
3483 | * @val: storage for the property value | |
3484 | * | |
3485 | * This function retrieves the softare state of the given property for the given | |
3486 | * property. Since there is no driver callback to retrieve the current property | |
3487 | * value this might be out of sync with the hardware, depending upon the driver | |
3488 | * and property. | |
3489 | * | |
3490 | * Returns: | |
3491 | * Zero on success, error code on failure. | |
3492 | */ | |
c543188a PZ |
3493 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3494 | struct drm_property *property, uint64_t *val) | |
3495 | { | |
3496 | int i; | |
3497 | ||
7f88a9be | 3498 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3499 | if (obj->properties->ids[i] == property->base.id) { |
3500 | *val = obj->properties->values[i]; | |
3501 | return 0; | |
3502 | } | |
3503 | } | |
3504 | ||
3505 | return -EINVAL; | |
3506 | } | |
3507 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3508 | ||
c8e32cc1 DV |
3509 | /** |
3510 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3511 | * @dev: DRM device | |
3512 | * @data: ioctl data | |
3513 | * @file_priv: DRM file info | |
3514 | * | |
3515 | * This function retrieves the current value for an connectors's property. | |
3516 | * | |
3517 | * Called by the user via ioctl. | |
3518 | * | |
3519 | * Returns: | |
3520 | * Zero on success, errno on failure. | |
3521 | */ | |
f453ba04 DA |
3522 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3523 | void *data, struct drm_file *file_priv) | |
3524 | { | |
f453ba04 DA |
3525 | struct drm_mode_get_property *out_resp = data; |
3526 | struct drm_property *property; | |
3527 | int enum_count = 0; | |
3528 | int blob_count = 0; | |
3529 | int value_count = 0; | |
3530 | int ret = 0, i; | |
3531 | int copied; | |
3532 | struct drm_property_enum *prop_enum; | |
3533 | struct drm_mode_property_enum __user *enum_ptr; | |
3534 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3535 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3536 | uint64_t __user *values_ptr; |
3537 | uint32_t __user *blob_length_ptr; | |
3538 | ||
fb3b06c8 DA |
3539 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3540 | return -EINVAL; | |
3541 | ||
84849903 | 3542 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3543 | property = drm_property_find(dev, out_resp->prop_id); |
3544 | if (!property) { | |
f27657f2 | 3545 | ret = -ENOENT; |
f453ba04 DA |
3546 | goto done; |
3547 | } | |
f453ba04 | 3548 | |
5ea22f24 RC |
3549 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3550 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3551 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3552 | enum_count++; | |
5ea22f24 | 3553 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3554 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) |
3555 | blob_count++; | |
3556 | } | |
3557 | ||
3558 | value_count = property->num_values; | |
3559 | ||
3560 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3561 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3562 | out_resp->flags = property->flags; | |
3563 | ||
3564 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3565 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3566 | for (i = 0; i < value_count; i++) { |
3567 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3568 | ret = -EFAULT; | |
3569 | goto done; | |
3570 | } | |
3571 | } | |
3572 | } | |
3573 | out_resp->count_values = value_count; | |
3574 | ||
5ea22f24 RC |
3575 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3576 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3577 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3578 | copied = 0; | |
81f6c7f8 | 3579 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3580 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3581 | ||
3582 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3583 | ret = -EFAULT; | |
3584 | goto done; | |
3585 | } | |
3586 | ||
3587 | if (copy_to_user(&enum_ptr[copied].name, | |
3588 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3589 | ret = -EFAULT; | |
3590 | goto done; | |
3591 | } | |
3592 | copied++; | |
3593 | } | |
3594 | } | |
3595 | out_resp->count_enum_blobs = enum_count; | |
3596 | } | |
3597 | ||
5ea22f24 | 3598 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3599 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { |
3600 | copied = 0; | |
81f6c7f8 VS |
3601 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3602 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3603 | |
3604 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3605 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3606 | ret = -EFAULT; | |
3607 | goto done; | |
3608 | } | |
3609 | ||
3610 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3611 | ret = -EFAULT; | |
3612 | goto done; | |
3613 | } | |
3614 | ||
3615 | copied++; | |
3616 | } | |
3617 | } | |
3618 | out_resp->count_enum_blobs = blob_count; | |
3619 | } | |
3620 | done: | |
84849903 | 3621 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3622 | return ret; |
3623 | } | |
3624 | ||
3625 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3626 | void *data) | |
3627 | { | |
3628 | struct drm_property_blob *blob; | |
6bfc56aa | 3629 | int ret; |
f453ba04 DA |
3630 | |
3631 | if (!length || !data) | |
3632 | return NULL; | |
3633 | ||
3634 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3635 | if (!blob) | |
3636 | return NULL; | |
3637 | ||
6bfc56aa VS |
3638 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3639 | if (ret) { | |
3640 | kfree(blob); | |
3641 | return NULL; | |
3642 | } | |
3643 | ||
f453ba04 DA |
3644 | blob->length = length; |
3645 | ||
3646 | memcpy(blob->data, data, length); | |
3647 | ||
f453ba04 DA |
3648 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3649 | return blob; | |
3650 | } | |
3651 | ||
3652 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3653 | struct drm_property_blob *blob) | |
3654 | { | |
3655 | drm_mode_object_put(dev, &blob->base); | |
3656 | list_del(&blob->head); | |
3657 | kfree(blob); | |
3658 | } | |
3659 | ||
c8e32cc1 DV |
3660 | /** |
3661 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3662 | * @dev: DRM device | |
3663 | * @data: ioctl data | |
3664 | * @file_priv: DRM file info | |
3665 | * | |
3666 | * This function retrieves the contents of a blob property. The value stored in | |
3667 | * an object's blob property is just a normal modeset object id. | |
3668 | * | |
3669 | * Called by the user via ioctl. | |
3670 | * | |
3671 | * Returns: | |
3672 | * Zero on success, errno on failure. | |
3673 | */ | |
f453ba04 DA |
3674 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3675 | void *data, struct drm_file *file_priv) | |
3676 | { | |
f453ba04 DA |
3677 | struct drm_mode_get_blob *out_resp = data; |
3678 | struct drm_property_blob *blob; | |
3679 | int ret = 0; | |
81f6c7f8 | 3680 | void __user *blob_ptr; |
f453ba04 | 3681 | |
fb3b06c8 DA |
3682 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3683 | return -EINVAL; | |
3684 | ||
84849903 | 3685 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3686 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
3687 | if (!blob) { | |
f27657f2 | 3688 | ret = -ENOENT; |
f453ba04 DA |
3689 | goto done; |
3690 | } | |
f453ba04 DA |
3691 | |
3692 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3693 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3694 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3695 | ret = -EFAULT; | |
3696 | goto done; | |
3697 | } | |
3698 | } | |
3699 | out_resp->length = blob->length; | |
3700 | ||
3701 | done: | |
84849903 | 3702 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3703 | return ret; |
3704 | } | |
3705 | ||
c8e32cc1 DV |
3706 | /** |
3707 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
3708 | * @connector: drm connector | |
3709 | * @edid: new value of the edid property | |
3710 | * | |
3711 | * This function creates a new blob modeset object and assigns its id to the | |
3712 | * connector's edid property. | |
3713 | * | |
3714 | * Returns: | |
3715 | * Zero on success, errno on failure. | |
3716 | */ | |
f453ba04 DA |
3717 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
3718 | struct edid *edid) | |
3719 | { | |
3720 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3721 | int ret, size; |
f453ba04 DA |
3722 | |
3723 | if (connector->edid_blob_ptr) | |
3724 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3725 | ||
3726 | /* Delete edid, when there is none. */ | |
3727 | if (!edid) { | |
3728 | connector->edid_blob_ptr = NULL; | |
58495563 | 3729 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3730 | return ret; |
3731 | } | |
3732 | ||
7466f4cc AJ |
3733 | size = EDID_LENGTH * (1 + edid->extensions); |
3734 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3735 | size, edid); | |
e655d122 SK |
3736 | if (!connector->edid_blob_ptr) |
3737 | return -EINVAL; | |
f453ba04 | 3738 | |
58495563 | 3739 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3740 | dev->mode_config.edid_property, |
3741 | connector->edid_blob_ptr->base.id); | |
3742 | ||
3743 | return ret; | |
3744 | } | |
3745 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3746 | ||
26a34815 | 3747 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3748 | uint64_t value) |
26a34815 PZ |
3749 | { |
3750 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3751 | return false; | |
5ea22f24 RC |
3752 | |
3753 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { | |
26a34815 PZ |
3754 | if (value < property->values[0] || value > property->values[1]) |
3755 | return false; | |
3756 | return true; | |
ebc44cf3 RC |
3757 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
3758 | int64_t svalue = U642I64(value); | |
3759 | if (svalue < U642I64(property->values[0]) || | |
3760 | svalue > U642I64(property->values[1])) | |
3761 | return false; | |
3762 | return true; | |
5ea22f24 | 3763 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
49e27545 | 3764 | int i; |
592c20ee | 3765 | uint64_t valid_mask = 0; |
49e27545 RC |
3766 | for (i = 0; i < property->num_values; i++) |
3767 | valid_mask |= (1ULL << property->values[i]); | |
3768 | return !(value & ~valid_mask); | |
5ea22f24 | 3769 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
3770 | /* Only the driver knows */ |
3771 | return true; | |
98f75de4 RC |
3772 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
3773 | struct drm_mode_object *obj; | |
3774 | /* a zero value for an object property translates to null: */ | |
3775 | if (value == 0) | |
3776 | return true; | |
3777 | /* | |
3778 | * NOTE: use _object_find() directly to bypass restriction on | |
3779 | * looking up refcnt'd objects (ie. fb's). For a refcnt'd | |
3780 | * object this could race against object finalization, so it | |
3781 | * simply tells us that the object *was* valid. Which is good | |
3782 | * enough. | |
3783 | */ | |
3784 | obj = _object_find(property->dev, value, property->values[0]); | |
3785 | return obj != NULL; | |
26a34815 PZ |
3786 | } else { |
3787 | int i; | |
3788 | for (i = 0; i < property->num_values; i++) | |
3789 | if (property->values[i] == value) | |
3790 | return true; | |
3791 | return false; | |
3792 | } | |
3793 | } | |
3794 | ||
c8e32cc1 DV |
3795 | /** |
3796 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
3797 | * @dev: DRM device | |
3798 | * @data: ioctl data | |
3799 | * @file_priv: DRM file info | |
3800 | * | |
3801 | * This function sets the current value for a connectors's property. It also | |
3802 | * calls into a driver's ->set_property callback to update the hardware state | |
3803 | * | |
3804 | * Called by the user via ioctl. | |
3805 | * | |
3806 | * Returns: | |
3807 | * Zero on success, errno on failure. | |
3808 | */ | |
f453ba04 DA |
3809 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3810 | void *data, struct drm_file *file_priv) | |
3811 | { | |
0057d8dd PZ |
3812 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3813 | struct drm_mode_obj_set_property obj_set_prop = { | |
3814 | .value = conn_set_prop->value, | |
3815 | .prop_id = conn_set_prop->prop_id, | |
3816 | .obj_id = conn_set_prop->connector_id, | |
3817 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3818 | }; | |
fb3b06c8 | 3819 | |
0057d8dd PZ |
3820 | /* It does all the locking and checking we need */ |
3821 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3822 | } |
3823 | ||
c543188a PZ |
3824 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3825 | struct drm_property *property, | |
3826 | uint64_t value) | |
3827 | { | |
3828 | int ret = -EINVAL; | |
3829 | struct drm_connector *connector = obj_to_connector(obj); | |
3830 | ||
3831 | /* Do DPMS ourselves */ | |
3832 | if (property == connector->dev->mode_config.dpms_property) { | |
3833 | if (connector->funcs->dpms) | |
3834 | (*connector->funcs->dpms)(connector, (int)value); | |
3835 | ret = 0; | |
3836 | } else if (connector->funcs->set_property) | |
3837 | ret = connector->funcs->set_property(connector, property, value); | |
3838 | ||
3839 | /* store the property value if successful */ | |
3840 | if (!ret) | |
58495563 | 3841 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3842 | return ret; |
3843 | } | |
3844 | ||
bffd9de0 PZ |
3845 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3846 | struct drm_property *property, | |
3847 | uint64_t value) | |
3848 | { | |
3849 | int ret = -EINVAL; | |
3850 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3851 | ||
3852 | if (crtc->funcs->set_property) | |
3853 | ret = crtc->funcs->set_property(crtc, property, value); | |
3854 | if (!ret) | |
3855 | drm_object_property_set_value(obj, property, value); | |
3856 | ||
3857 | return ret; | |
3858 | } | |
3859 | ||
4d93914a RC |
3860 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3861 | struct drm_property *property, | |
3862 | uint64_t value) | |
3863 | { | |
3864 | int ret = -EINVAL; | |
3865 | struct drm_plane *plane = obj_to_plane(obj); | |
3866 | ||
3867 | if (plane->funcs->set_property) | |
3868 | ret = plane->funcs->set_property(plane, property, value); | |
3869 | if (!ret) | |
3870 | drm_object_property_set_value(obj, property, value); | |
3871 | ||
3872 | return ret; | |
3873 | } | |
3874 | ||
c8e32cc1 DV |
3875 | /** |
3876 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
3877 | * @dev: DRM device | |
3878 | * @data: ioctl data | |
3879 | * @file_priv: DRM file info | |
3880 | * | |
3881 | * This function retrieves the current value for an object's property. Compared | |
3882 | * to the connector specific ioctl this one is extended to also work on crtc and | |
3883 | * plane objects. | |
3884 | * | |
3885 | * Called by the user via ioctl. | |
3886 | * | |
3887 | * Returns: | |
3888 | * Zero on success, errno on failure. | |
3889 | */ | |
c543188a PZ |
3890 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3891 | struct drm_file *file_priv) | |
3892 | { | |
3893 | struct drm_mode_obj_get_properties *arg = data; | |
3894 | struct drm_mode_object *obj; | |
3895 | int ret = 0; | |
3896 | int i; | |
3897 | int copied = 0; | |
3898 | int props_count = 0; | |
3899 | uint32_t __user *props_ptr; | |
3900 | uint64_t __user *prop_values_ptr; | |
3901 | ||
3902 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3903 | return -EINVAL; | |
3904 | ||
84849903 | 3905 | drm_modeset_lock_all(dev); |
c543188a PZ |
3906 | |
3907 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3908 | if (!obj) { | |
f27657f2 | 3909 | ret = -ENOENT; |
c543188a PZ |
3910 | goto out; |
3911 | } | |
3912 | if (!obj->properties) { | |
3913 | ret = -EINVAL; | |
3914 | goto out; | |
3915 | } | |
3916 | ||
7f88a9be | 3917 | props_count = obj->properties->count; |
c543188a PZ |
3918 | |
3919 | /* This ioctl is called twice, once to determine how much space is | |
3920 | * needed, and the 2nd time to fill it. */ | |
3921 | if ((arg->count_props >= props_count) && props_count) { | |
3922 | copied = 0; | |
3923 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3924 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3925 | (arg->prop_values_ptr); | |
3926 | for (i = 0; i < props_count; i++) { | |
3927 | if (put_user(obj->properties->ids[i], | |
3928 | props_ptr + copied)) { | |
3929 | ret = -EFAULT; | |
3930 | goto out; | |
3931 | } | |
3932 | if (put_user(obj->properties->values[i], | |
3933 | prop_values_ptr + copied)) { | |
3934 | ret = -EFAULT; | |
3935 | goto out; | |
3936 | } | |
3937 | copied++; | |
3938 | } | |
3939 | } | |
3940 | arg->count_props = props_count; | |
3941 | out: | |
84849903 | 3942 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3943 | return ret; |
3944 | } | |
3945 | ||
c8e32cc1 DV |
3946 | /** |
3947 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
3948 | * @dev: DRM device | |
3949 | * @data: ioctl data | |
3950 | * @file_priv: DRM file info | |
3951 | * | |
3952 | * This function sets the current value for an object's property. It also calls | |
3953 | * into a driver's ->set_property callback to update the hardware state. | |
3954 | * Compared to the connector specific ioctl this one is extended to also work on | |
3955 | * crtc and plane objects. | |
3956 | * | |
3957 | * Called by the user via ioctl. | |
3958 | * | |
3959 | * Returns: | |
3960 | * Zero on success, errno on failure. | |
3961 | */ | |
c543188a PZ |
3962 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
3963 | struct drm_file *file_priv) | |
3964 | { | |
3965 | struct drm_mode_obj_set_property *arg = data; | |
3966 | struct drm_mode_object *arg_obj; | |
3967 | struct drm_mode_object *prop_obj; | |
3968 | struct drm_property *property; | |
3969 | int ret = -EINVAL; | |
3970 | int i; | |
3971 | ||
3972 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3973 | return -EINVAL; | |
3974 | ||
84849903 | 3975 | drm_modeset_lock_all(dev); |
c543188a PZ |
3976 | |
3977 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
3978 | if (!arg_obj) { |
3979 | ret = -ENOENT; | |
c543188a | 3980 | goto out; |
f27657f2 | 3981 | } |
c543188a PZ |
3982 | if (!arg_obj->properties) |
3983 | goto out; | |
3984 | ||
7f88a9be | 3985 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
3986 | if (arg_obj->properties->ids[i] == arg->prop_id) |
3987 | break; | |
3988 | ||
7f88a9be | 3989 | if (i == arg_obj->properties->count) |
c543188a PZ |
3990 | goto out; |
3991 | ||
3992 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
3993 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
3994 | if (!prop_obj) { |
3995 | ret = -ENOENT; | |
c543188a | 3996 | goto out; |
f27657f2 | 3997 | } |
c543188a PZ |
3998 | property = obj_to_property(prop_obj); |
3999 | ||
4000 | if (!drm_property_change_is_valid(property, arg->value)) | |
4001 | goto out; | |
4002 | ||
4003 | switch (arg_obj->type) { | |
4004 | case DRM_MODE_OBJECT_CONNECTOR: | |
4005 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4006 | arg->value); | |
4007 | break; | |
bffd9de0 PZ |
4008 | case DRM_MODE_OBJECT_CRTC: |
4009 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4010 | break; | |
4d93914a RC |
4011 | case DRM_MODE_OBJECT_PLANE: |
4012 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
4013 | break; | |
c543188a PZ |
4014 | } |
4015 | ||
4016 | out: | |
84849903 | 4017 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4018 | return ret; |
4019 | } | |
4020 | ||
c8e32cc1 DV |
4021 | /** |
4022 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4023 | * @connector: connector to attach | |
4024 | * @encoder: encoder to attach @connector to | |
4025 | * | |
4026 | * This function links up a connector to an encoder. Note that the routing | |
4027 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4028 | * possible_clones and possible_crtcs bitmasks. | |
4029 | * | |
4030 | * Returns: | |
4031 | * Zero on success, errno on failure. | |
4032 | */ | |
f453ba04 DA |
4033 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4034 | struct drm_encoder *encoder) | |
4035 | { | |
4036 | int i; | |
4037 | ||
4038 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4039 | if (connector->encoder_ids[i] == 0) { | |
4040 | connector->encoder_ids[i] = encoder->base.id; | |
4041 | return 0; | |
4042 | } | |
4043 | } | |
4044 | return -ENOMEM; | |
4045 | } | |
4046 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4047 | ||
c8e32cc1 DV |
4048 | /** |
4049 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4050 | * @crtc: CRTC to set the gamma table size for | |
4051 | * @gamma_size: size of the gamma table | |
4052 | * | |
4053 | * Drivers which support gamma tables should set this to the supported gamma | |
4054 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4055 | * fixed gamma table size. | |
4056 | * | |
4057 | * Returns: | |
4058 | * Zero on success, errno on failure. | |
4059 | */ | |
4cae5b84 | 4060 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4061 | int gamma_size) |
f453ba04 DA |
4062 | { |
4063 | crtc->gamma_size = gamma_size; | |
4064 | ||
4065 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
4066 | if (!crtc->gamma_store) { | |
4067 | crtc->gamma_size = 0; | |
4cae5b84 | 4068 | return -ENOMEM; |
f453ba04 DA |
4069 | } |
4070 | ||
4cae5b84 | 4071 | return 0; |
f453ba04 DA |
4072 | } |
4073 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4074 | ||
c8e32cc1 DV |
4075 | /** |
4076 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4077 | * @dev: DRM device | |
4078 | * @data: ioctl data | |
4079 | * @file_priv: DRM file info | |
4080 | * | |
4081 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4082 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4083 | * | |
4084 | * Called by the user via ioctl. | |
4085 | * | |
4086 | * Returns: | |
4087 | * Zero on success, errno on failure. | |
4088 | */ | |
f453ba04 DA |
4089 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4090 | void *data, struct drm_file *file_priv) | |
4091 | { | |
4092 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4093 | struct drm_crtc *crtc; |
4094 | void *r_base, *g_base, *b_base; | |
4095 | int size; | |
4096 | int ret = 0; | |
4097 | ||
fb3b06c8 DA |
4098 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4099 | return -EINVAL; | |
4100 | ||
84849903 | 4101 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4102 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4103 | if (!crtc) { | |
f27657f2 | 4104 | ret = -ENOENT; |
f453ba04 DA |
4105 | goto out; |
4106 | } | |
f453ba04 | 4107 | |
ebe0f244 LP |
4108 | if (crtc->funcs->gamma_set == NULL) { |
4109 | ret = -ENOSYS; | |
4110 | goto out; | |
4111 | } | |
4112 | ||
f453ba04 DA |
4113 | /* memcpy into gamma store */ |
4114 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4115 | ret = -EINVAL; | |
4116 | goto out; | |
4117 | } | |
4118 | ||
4119 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4120 | r_base = crtc->gamma_store; | |
4121 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4122 | ret = -EFAULT; | |
4123 | goto out; | |
4124 | } | |
4125 | ||
4126 | g_base = r_base + size; | |
4127 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4128 | ret = -EFAULT; | |
4129 | goto out; | |
4130 | } | |
4131 | ||
4132 | b_base = g_base + size; | |
4133 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4134 | ret = -EFAULT; | |
4135 | goto out; | |
4136 | } | |
4137 | ||
7203425a | 4138 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4139 | |
4140 | out: | |
84849903 | 4141 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4142 | return ret; |
4143 | ||
4144 | } | |
4145 | ||
c8e32cc1 DV |
4146 | /** |
4147 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4148 | * @dev: DRM device | |
4149 | * @data: ioctl data | |
4150 | * @file_priv: DRM file info | |
4151 | * | |
4152 | * Copy the current gamma table into the storage provided. This also provides | |
4153 | * the gamma table size the driver expects, which can be used to size the | |
4154 | * allocated storage. | |
4155 | * | |
4156 | * Called by the user via ioctl. | |
4157 | * | |
4158 | * Returns: | |
4159 | * Zero on success, errno on failure. | |
4160 | */ | |
f453ba04 DA |
4161 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4162 | void *data, struct drm_file *file_priv) | |
4163 | { | |
4164 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4165 | struct drm_crtc *crtc; |
4166 | void *r_base, *g_base, *b_base; | |
4167 | int size; | |
4168 | int ret = 0; | |
4169 | ||
fb3b06c8 DA |
4170 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4171 | return -EINVAL; | |
4172 | ||
84849903 | 4173 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4174 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4175 | if (!crtc) { | |
f27657f2 | 4176 | ret = -ENOENT; |
f453ba04 DA |
4177 | goto out; |
4178 | } | |
f453ba04 DA |
4179 | |
4180 | /* memcpy into gamma store */ | |
4181 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4182 | ret = -EINVAL; | |
4183 | goto out; | |
4184 | } | |
4185 | ||
4186 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4187 | r_base = crtc->gamma_store; | |
4188 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4189 | ret = -EFAULT; | |
4190 | goto out; | |
4191 | } | |
4192 | ||
4193 | g_base = r_base + size; | |
4194 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4195 | ret = -EFAULT; | |
4196 | goto out; | |
4197 | } | |
4198 | ||
4199 | b_base = g_base + size; | |
4200 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4201 | ret = -EFAULT; | |
4202 | goto out; | |
4203 | } | |
4204 | out: | |
84849903 | 4205 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4206 | return ret; |
4207 | } | |
d91d8a3f | 4208 | |
c8e32cc1 DV |
4209 | /** |
4210 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4211 | * @dev: DRM device | |
4212 | * @data: ioctl data | |
4213 | * @file_priv: DRM file info | |
4214 | * | |
4215 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4216 | * Optionally a drm event is generated to signal the completion of the event. | |
4217 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4218 | * properties (including driver specific metadata like tiling layout) will work, | |
4219 | * but some drivers support e.g. pixel format changes through the pageflip | |
4220 | * ioctl. | |
4221 | * | |
4222 | * Called by the user via ioctl. | |
4223 | * | |
4224 | * Returns: | |
4225 | * Zero on success, errno on failure. | |
4226 | */ | |
d91d8a3f KH |
4227 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4228 | void *data, struct drm_file *file_priv) | |
4229 | { | |
4230 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4231 | struct drm_crtc *crtc; |
b0d12325 | 4232 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
4233 | struct drm_pending_vblank_event *e = NULL; |
4234 | unsigned long flags; | |
4235 | int ret = -EINVAL; | |
4236 | ||
4237 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4238 | page_flip->reserved != 0) | |
4239 | return -EINVAL; | |
4240 | ||
62f2104f KP |
4241 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4242 | return -EINVAL; | |
4243 | ||
a2b34e22 RC |
4244 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4245 | if (!crtc) | |
f27657f2 | 4246 | return -ENOENT; |
d91d8a3f | 4247 | |
51fd371b | 4248 | drm_modeset_lock(&crtc->mutex, NULL); |
f4510a27 | 4249 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4250 | /* The framebuffer is currently unbound, presumably |
4251 | * due to a hotplug event, that userspace has not | |
4252 | * yet discovered. | |
4253 | */ | |
4254 | ret = -EBUSY; | |
4255 | goto out; | |
4256 | } | |
4257 | ||
d91d8a3f KH |
4258 | if (crtc->funcs->page_flip == NULL) |
4259 | goto out; | |
4260 | ||
786b99ed | 4261 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4262 | if (!fb) { |
4263 | ret = -ENOENT; | |
d91d8a3f | 4264 | goto out; |
37c4e705 | 4265 | } |
d91d8a3f | 4266 | |
c11e9283 DL |
4267 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4268 | if (ret) | |
5f61bb42 | 4269 | goto out; |
5f61bb42 | 4270 | |
f4510a27 | 4271 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4272 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4273 | ret = -EINVAL; | |
4274 | goto out; | |
4275 | } | |
4276 | ||
d91d8a3f KH |
4277 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4278 | ret = -ENOMEM; | |
4279 | spin_lock_irqsave(&dev->event_lock, flags); | |
4280 | if (file_priv->event_space < sizeof e->event) { | |
4281 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4282 | goto out; | |
4283 | } | |
4284 | file_priv->event_space -= sizeof e->event; | |
4285 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4286 | ||
4287 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4288 | if (e == NULL) { | |
4289 | spin_lock_irqsave(&dev->event_lock, flags); | |
4290 | file_priv->event_space += sizeof e->event; | |
4291 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4292 | goto out; | |
4293 | } | |
4294 | ||
7bd4d7be | 4295 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4296 | e->event.base.length = sizeof e->event; |
4297 | e->event.user_data = page_flip->user_data; | |
4298 | e->base.event = &e->event.base; | |
4299 | e->base.file_priv = file_priv; | |
4300 | e->base.destroy = | |
4301 | (void (*) (struct drm_pending_event *)) kfree; | |
4302 | } | |
4303 | ||
f4510a27 | 4304 | old_fb = crtc->primary->fb; |
ed8d1975 | 4305 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4306 | if (ret) { |
aef6a7ee JS |
4307 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4308 | spin_lock_irqsave(&dev->event_lock, flags); | |
4309 | file_priv->event_space += sizeof e->event; | |
4310 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4311 | kfree(e); | |
4312 | } | |
b0d12325 DV |
4313 | /* Keep the old fb, don't unref it. */ |
4314 | old_fb = NULL; | |
4315 | } else { | |
8cf1e981 TR |
4316 | /* |
4317 | * Warn if the driver hasn't properly updated the crtc->fb | |
4318 | * field to reflect that the new framebuffer is now used. | |
4319 | * Failing to do so will screw with the reference counting | |
4320 | * on framebuffers. | |
4321 | */ | |
f4510a27 | 4322 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4323 | /* Unref only the old framebuffer. */ |
4324 | fb = NULL; | |
d91d8a3f KH |
4325 | } |
4326 | ||
4327 | out: | |
b0d12325 DV |
4328 | if (fb) |
4329 | drm_framebuffer_unreference(fb); | |
4330 | if (old_fb) | |
4331 | drm_framebuffer_unreference(old_fb); | |
51fd371b | 4332 | drm_modeset_unlock(&crtc->mutex); |
b4d5e7d1 | 4333 | |
d91d8a3f KH |
4334 | return ret; |
4335 | } | |
eb033556 | 4336 | |
c8e32cc1 DV |
4337 | /** |
4338 | * drm_mode_config_reset - call ->reset callbacks | |
4339 | * @dev: drm device | |
4340 | * | |
4341 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4342 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4343 | * reset hardware and software state. | |
4344 | */ | |
eb033556 CW |
4345 | void drm_mode_config_reset(struct drm_device *dev) |
4346 | { | |
4347 | struct drm_crtc *crtc; | |
4348 | struct drm_encoder *encoder; | |
4349 | struct drm_connector *connector; | |
4350 | ||
4351 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
4352 | if (crtc->funcs->reset) | |
4353 | crtc->funcs->reset(crtc); | |
4354 | ||
4355 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4356 | if (encoder->funcs->reset) | |
4357 | encoder->funcs->reset(encoder); | |
4358 | ||
5e2cb2f6 DV |
4359 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4360 | connector->status = connector_status_unknown; | |
4361 | ||
eb033556 CW |
4362 | if (connector->funcs->reset) |
4363 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4364 | } |
eb033556 CW |
4365 | } |
4366 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4367 | |
c8e32cc1 DV |
4368 | /** |
4369 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4370 | * @dev: DRM device | |
4371 | * @data: ioctl data | |
4372 | * @file_priv: DRM file info | |
4373 | * | |
4374 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4375 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4376 | * handle can then be wrapped up into a framebuffer modeset object. | |
4377 | * | |
4378 | * Note that userspace is not allowed to use such objects for render | |
4379 | * acceleration - drivers must create their own private ioctls for such a use | |
4380 | * case. | |
4381 | * | |
4382 | * Called by the user via ioctl. | |
4383 | * | |
4384 | * Returns: | |
4385 | * Zero on success, errno on failure. | |
4386 | */ | |
ff72145b DA |
4387 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4388 | void *data, struct drm_file *file_priv) | |
4389 | { | |
4390 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4391 | u32 cpp, stride, size; |
ff72145b DA |
4392 | |
4393 | if (!dev->driver->dumb_create) | |
4394 | return -ENOSYS; | |
b28cd41f DH |
4395 | if (!args->width || !args->height || !args->bpp) |
4396 | return -EINVAL; | |
4397 | ||
4398 | /* overflow checks for 32bit size calculations */ | |
4399 | cpp = DIV_ROUND_UP(args->bpp, 8); | |
4400 | if (cpp > 0xffffffffU / args->width) | |
4401 | return -EINVAL; | |
4402 | stride = cpp * args->width; | |
4403 | if (args->height > 0xffffffffU / stride) | |
4404 | return -EINVAL; | |
4405 | ||
4406 | /* test for wrap-around */ | |
4407 | size = args->height * stride; | |
4408 | if (PAGE_ALIGN(size) == 0) | |
4409 | return -EINVAL; | |
4410 | ||
ff72145b DA |
4411 | return dev->driver->dumb_create(file_priv, dev, args); |
4412 | } | |
4413 | ||
c8e32cc1 DV |
4414 | /** |
4415 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4416 | * @dev: DRM device | |
4417 | * @data: ioctl data | |
4418 | * @file_priv: DRM file info | |
4419 | * | |
4420 | * Allocate an offset in the drm device node's address space to be able to | |
4421 | * memory map a dumb buffer. | |
4422 | * | |
4423 | * Called by the user via ioctl. | |
4424 | * | |
4425 | * Returns: | |
4426 | * Zero on success, errno on failure. | |
4427 | */ | |
ff72145b DA |
4428 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4429 | void *data, struct drm_file *file_priv) | |
4430 | { | |
4431 | struct drm_mode_map_dumb *args = data; | |
4432 | ||
4433 | /* call driver ioctl to get mmap offset */ | |
4434 | if (!dev->driver->dumb_map_offset) | |
4435 | return -ENOSYS; | |
4436 | ||
4437 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4438 | } | |
4439 | ||
c8e32cc1 DV |
4440 | /** |
4441 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4442 | * @dev: DRM device | |
4443 | * @data: ioctl data | |
4444 | * @file_priv: DRM file info | |
4445 | * | |
4446 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4447 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4448 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4449 | * | |
4450 | * Called by the user via ioctl. | |
4451 | * | |
4452 | * Returns: | |
4453 | * Zero on success, errno on failure. | |
4454 | */ | |
ff72145b DA |
4455 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4456 | void *data, struct drm_file *file_priv) | |
4457 | { | |
4458 | struct drm_mode_destroy_dumb *args = data; | |
4459 | ||
4460 | if (!dev->driver->dumb_destroy) | |
4461 | return -ENOSYS; | |
4462 | ||
4463 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4464 | } | |
248dbc23 | 4465 | |
c8e32cc1 DV |
4466 | /** |
4467 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4468 | * @format: pixel format (DRM_FORMAT_*) | |
4469 | * @depth: storage for the depth value | |
4470 | * @bpp: storage for the bpp value | |
4471 | * | |
4472 | * This only supports RGB formats here for compat with code that doesn't use | |
4473 | * pixel formats directly yet. | |
248dbc23 DA |
4474 | */ |
4475 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4476 | int *bpp) | |
4477 | { | |
4478 | switch (format) { | |
c51a6bc5 | 4479 | case DRM_FORMAT_C8: |
04b3924d VS |
4480 | case DRM_FORMAT_RGB332: |
4481 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4482 | *depth = 8; |
4483 | *bpp = 8; | |
4484 | break; | |
04b3924d VS |
4485 | case DRM_FORMAT_XRGB1555: |
4486 | case DRM_FORMAT_XBGR1555: | |
4487 | case DRM_FORMAT_RGBX5551: | |
4488 | case DRM_FORMAT_BGRX5551: | |
4489 | case DRM_FORMAT_ARGB1555: | |
4490 | case DRM_FORMAT_ABGR1555: | |
4491 | case DRM_FORMAT_RGBA5551: | |
4492 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4493 | *depth = 15; |
4494 | *bpp = 16; | |
4495 | break; | |
04b3924d VS |
4496 | case DRM_FORMAT_RGB565: |
4497 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4498 | *depth = 16; |
4499 | *bpp = 16; | |
4500 | break; | |
04b3924d VS |
4501 | case DRM_FORMAT_RGB888: |
4502 | case DRM_FORMAT_BGR888: | |
4503 | *depth = 24; | |
4504 | *bpp = 24; | |
4505 | break; | |
4506 | case DRM_FORMAT_XRGB8888: | |
4507 | case DRM_FORMAT_XBGR8888: | |
4508 | case DRM_FORMAT_RGBX8888: | |
4509 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4510 | *depth = 24; |
4511 | *bpp = 32; | |
4512 | break; | |
04b3924d VS |
4513 | case DRM_FORMAT_XRGB2101010: |
4514 | case DRM_FORMAT_XBGR2101010: | |
4515 | case DRM_FORMAT_RGBX1010102: | |
4516 | case DRM_FORMAT_BGRX1010102: | |
4517 | case DRM_FORMAT_ARGB2101010: | |
4518 | case DRM_FORMAT_ABGR2101010: | |
4519 | case DRM_FORMAT_RGBA1010102: | |
4520 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4521 | *depth = 30; |
4522 | *bpp = 32; | |
4523 | break; | |
04b3924d VS |
4524 | case DRM_FORMAT_ARGB8888: |
4525 | case DRM_FORMAT_ABGR8888: | |
4526 | case DRM_FORMAT_RGBA8888: | |
4527 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4528 | *depth = 32; |
4529 | *bpp = 32; | |
4530 | break; | |
4531 | default: | |
23c453a4 VS |
4532 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4533 | drm_get_format_name(format)); | |
248dbc23 DA |
4534 | *depth = 0; |
4535 | *bpp = 0; | |
4536 | break; | |
4537 | } | |
4538 | } | |
4539 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4540 | |
4541 | /** | |
4542 | * drm_format_num_planes - get the number of planes for format | |
4543 | * @format: pixel format (DRM_FORMAT_*) | |
4544 | * | |
c8e32cc1 | 4545 | * Returns: |
141670e9 VS |
4546 | * The number of planes used by the specified pixel format. |
4547 | */ | |
4548 | int drm_format_num_planes(uint32_t format) | |
4549 | { | |
4550 | switch (format) { | |
4551 | case DRM_FORMAT_YUV410: | |
4552 | case DRM_FORMAT_YVU410: | |
4553 | case DRM_FORMAT_YUV411: | |
4554 | case DRM_FORMAT_YVU411: | |
4555 | case DRM_FORMAT_YUV420: | |
4556 | case DRM_FORMAT_YVU420: | |
4557 | case DRM_FORMAT_YUV422: | |
4558 | case DRM_FORMAT_YVU422: | |
4559 | case DRM_FORMAT_YUV444: | |
4560 | case DRM_FORMAT_YVU444: | |
4561 | return 3; | |
4562 | case DRM_FORMAT_NV12: | |
4563 | case DRM_FORMAT_NV21: | |
4564 | case DRM_FORMAT_NV16: | |
4565 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4566 | case DRM_FORMAT_NV24: |
4567 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4568 | return 2; |
4569 | default: | |
4570 | return 1; | |
4571 | } | |
4572 | } | |
4573 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4574 | |
4575 | /** | |
4576 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4577 | * @format: pixel format (DRM_FORMAT_*) | |
4578 | * @plane: plane index | |
4579 | * | |
c8e32cc1 | 4580 | * Returns: |
5a86bd55 VS |
4581 | * The bytes per pixel value for the specified plane. |
4582 | */ | |
4583 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4584 | { | |
4585 | unsigned int depth; | |
4586 | int bpp; | |
4587 | ||
4588 | if (plane >= drm_format_num_planes(format)) | |
4589 | return 0; | |
4590 | ||
4591 | switch (format) { | |
4592 | case DRM_FORMAT_YUYV: | |
4593 | case DRM_FORMAT_YVYU: | |
4594 | case DRM_FORMAT_UYVY: | |
4595 | case DRM_FORMAT_VYUY: | |
4596 | return 2; | |
4597 | case DRM_FORMAT_NV12: | |
4598 | case DRM_FORMAT_NV21: | |
4599 | case DRM_FORMAT_NV16: | |
4600 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4601 | case DRM_FORMAT_NV24: |
4602 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4603 | return plane ? 2 : 1; |
4604 | case DRM_FORMAT_YUV410: | |
4605 | case DRM_FORMAT_YVU410: | |
4606 | case DRM_FORMAT_YUV411: | |
4607 | case DRM_FORMAT_YVU411: | |
4608 | case DRM_FORMAT_YUV420: | |
4609 | case DRM_FORMAT_YVU420: | |
4610 | case DRM_FORMAT_YUV422: | |
4611 | case DRM_FORMAT_YVU422: | |
4612 | case DRM_FORMAT_YUV444: | |
4613 | case DRM_FORMAT_YVU444: | |
4614 | return 1; | |
4615 | default: | |
4616 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4617 | return bpp >> 3; | |
4618 | } | |
4619 | } | |
4620 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4621 | |
4622 | /** | |
4623 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4624 | * @format: pixel format (DRM_FORMAT_*) | |
4625 | * | |
c8e32cc1 | 4626 | * Returns: |
01b68b04 VS |
4627 | * The horizontal chroma subsampling factor for the |
4628 | * specified pixel format. | |
4629 | */ | |
4630 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4631 | { | |
4632 | switch (format) { | |
4633 | case DRM_FORMAT_YUV411: | |
4634 | case DRM_FORMAT_YVU411: | |
4635 | case DRM_FORMAT_YUV410: | |
4636 | case DRM_FORMAT_YVU410: | |
4637 | return 4; | |
4638 | case DRM_FORMAT_YUYV: | |
4639 | case DRM_FORMAT_YVYU: | |
4640 | case DRM_FORMAT_UYVY: | |
4641 | case DRM_FORMAT_VYUY: | |
4642 | case DRM_FORMAT_NV12: | |
4643 | case DRM_FORMAT_NV21: | |
4644 | case DRM_FORMAT_NV16: | |
4645 | case DRM_FORMAT_NV61: | |
4646 | case DRM_FORMAT_YUV422: | |
4647 | case DRM_FORMAT_YVU422: | |
4648 | case DRM_FORMAT_YUV420: | |
4649 | case DRM_FORMAT_YVU420: | |
4650 | return 2; | |
4651 | default: | |
4652 | return 1; | |
4653 | } | |
4654 | } | |
4655 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4656 | ||
4657 | /** | |
4658 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4659 | * @format: pixel format (DRM_FORMAT_*) | |
4660 | * | |
c8e32cc1 | 4661 | * Returns: |
01b68b04 VS |
4662 | * The vertical chroma subsampling factor for the |
4663 | * specified pixel format. | |
4664 | */ | |
4665 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4666 | { | |
4667 | switch (format) { | |
4668 | case DRM_FORMAT_YUV410: | |
4669 | case DRM_FORMAT_YVU410: | |
4670 | return 4; | |
4671 | case DRM_FORMAT_YUV420: | |
4672 | case DRM_FORMAT_YVU420: | |
4673 | case DRM_FORMAT_NV12: | |
4674 | case DRM_FORMAT_NV21: | |
4675 | return 2; | |
4676 | default: | |
4677 | return 1; | |
4678 | } | |
4679 | } | |
4680 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 LP |
4681 | |
4682 | /** | |
4683 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
4684 | * @dev: DRM device | |
4685 | * | |
4686 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
4687 | * configuration of @dev. | |
4688 | * | |
4689 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
4690 | * problem, since this should happen single threaded at init time. It is the | |
4691 | * driver's problem to ensure this guarantee. | |
4692 | * | |
4693 | */ | |
4694 | void drm_mode_config_init(struct drm_device *dev) | |
4695 | { | |
4696 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 4697 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
4698 | mutex_init(&dev->mode_config.idr_mutex); |
4699 | mutex_init(&dev->mode_config.fb_lock); | |
4700 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
4701 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
4702 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 4703 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
4704 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
4705 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
4706 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
4707 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
4708 | idr_init(&dev->mode_config.crtc_idr); | |
4709 | ||
4710 | drm_modeset_lock_all(dev); | |
4711 | drm_mode_create_standard_connector_properties(dev); | |
9922ab5a | 4712 | drm_mode_create_standard_plane_properties(dev); |
87d24fc3 LP |
4713 | drm_modeset_unlock_all(dev); |
4714 | ||
4715 | /* Just to be sure */ | |
4716 | dev->mode_config.num_fb = 0; | |
4717 | dev->mode_config.num_connector = 0; | |
4718 | dev->mode_config.num_crtc = 0; | |
4719 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
4720 | dev->mode_config.num_overlay_plane = 0; |
4721 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
4722 | } |
4723 | EXPORT_SYMBOL(drm_mode_config_init); | |
4724 | ||
4725 | /** | |
4726 | * drm_mode_config_cleanup - free up DRM mode_config info | |
4727 | * @dev: DRM device | |
4728 | * | |
4729 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
4730 | * free up the framebuffers and associated buffer objects. | |
4731 | * | |
4732 | * Note that since this /should/ happen single-threaded at driver/device | |
4733 | * teardown time, no locking is required. It's the driver's job to ensure that | |
4734 | * this guarantee actually holds true. | |
4735 | * | |
4736 | * FIXME: cleanup any dangling user buffer objects too | |
4737 | */ | |
4738 | void drm_mode_config_cleanup(struct drm_device *dev) | |
4739 | { | |
4740 | struct drm_connector *connector, *ot; | |
4741 | struct drm_crtc *crtc, *ct; | |
4742 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 4743 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
4744 | struct drm_framebuffer *fb, *fbt; |
4745 | struct drm_property *property, *pt; | |
4746 | struct drm_property_blob *blob, *bt; | |
4747 | struct drm_plane *plane, *plt; | |
4748 | ||
4749 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
4750 | head) { | |
4751 | encoder->funcs->destroy(encoder); | |
4752 | } | |
4753 | ||
3b336ec4 SP |
4754 | list_for_each_entry_safe(bridge, brt, |
4755 | &dev->mode_config.bridge_list, head) { | |
4756 | bridge->funcs->destroy(bridge); | |
4757 | } | |
4758 | ||
87d24fc3 LP |
4759 | list_for_each_entry_safe(connector, ot, |
4760 | &dev->mode_config.connector_list, head) { | |
4761 | connector->funcs->destroy(connector); | |
4762 | } | |
4763 | ||
4764 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
4765 | head) { | |
4766 | drm_property_destroy(dev, property); | |
4767 | } | |
4768 | ||
4769 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
4770 | head) { | |
4771 | drm_property_destroy_blob(dev, blob); | |
4772 | } | |
4773 | ||
4774 | /* | |
4775 | * Single-threaded teardown context, so it's not required to grab the | |
4776 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
4777 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
4778 | * | |
4779 | * Also, if there are any framebuffers left, that's a driver leak now, | |
4780 | * so politely WARN about this. | |
4781 | */ | |
4782 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
4783 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
4784 | drm_framebuffer_remove(fb); | |
4785 | } | |
4786 | ||
4787 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
4788 | head) { | |
4789 | plane->funcs->destroy(plane); | |
4790 | } | |
4791 | ||
4792 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
4793 | crtc->funcs->destroy(crtc); | |
4794 | } | |
4795 | ||
4796 | idr_destroy(&dev->mode_config.crtc_idr); | |
51fd371b | 4797 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
4798 | } |
4799 | EXPORT_SYMBOL(drm_mode_config_cleanup); |