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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> | |
f453ba04 | 40 | |
8bd441b2 DV |
41 | #include "drm_crtc_internal.h" |
42 | ||
84849903 DV |
43 | /** |
44 | * drm_modeset_lock_all - take all modeset locks | |
45 | * @dev: drm device | |
46 | * | |
47 | * This function takes all modeset locks, suitable where a more fine-grained | |
c8e32cc1 DV |
48 | * scheme isn't (yet) implemented. Locks must be dropped with |
49 | * drm_modeset_unlock_all. | |
84849903 DV |
50 | */ |
51 | void drm_modeset_lock_all(struct drm_device *dev) | |
52 | { | |
29494c17 DV |
53 | struct drm_crtc *crtc; |
54 | ||
84849903 | 55 | mutex_lock(&dev->mode_config.mutex); |
29494c17 DV |
56 | |
57 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
58 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
84849903 DV |
59 | } |
60 | EXPORT_SYMBOL(drm_modeset_lock_all); | |
61 | ||
62 | /** | |
63 | * drm_modeset_unlock_all - drop all modeset locks | |
64 | * @dev: device | |
c8e32cc1 DV |
65 | * |
66 | * This function drop all modeset locks taken by drm_modeset_lock_all. | |
84849903 DV |
67 | */ |
68 | void drm_modeset_unlock_all(struct drm_device *dev) | |
69 | { | |
29494c17 DV |
70 | struct drm_crtc *crtc; |
71 | ||
72 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
73 | mutex_unlock(&crtc->mutex); | |
74 | ||
84849903 DV |
75 | mutex_unlock(&dev->mode_config.mutex); |
76 | } | |
77 | EXPORT_SYMBOL(drm_modeset_unlock_all); | |
78 | ||
6aed8ec3 DV |
79 | /** |
80 | * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked | |
81 | * @dev: device | |
c8e32cc1 DV |
82 | * |
83 | * Useful as a debug assert. | |
6aed8ec3 DV |
84 | */ |
85 | void drm_warn_on_modeset_not_all_locked(struct drm_device *dev) | |
86 | { | |
87 | struct drm_crtc *crtc; | |
88 | ||
a9b054e8 DV |
89 | /* Locking is currently fubar in the panic handler. */ |
90 | if (oops_in_progress) | |
91 | return; | |
92 | ||
6aed8ec3 DV |
93 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
94 | WARN_ON(!mutex_is_locked(&crtc->mutex)); | |
95 | ||
96 | WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
97 | } | |
98 | EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked); | |
99 | ||
f453ba04 DA |
100 | /* Avoid boilerplate. I'm tired of typing. */ |
101 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 102 | const char *fnname(int val) \ |
f453ba04 DA |
103 | { \ |
104 | int i; \ | |
105 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
106 | if (list[i].type == val) \ | |
107 | return list[i].name; \ | |
108 | } \ | |
109 | return "(unknown)"; \ | |
110 | } | |
111 | ||
112 | /* | |
113 | * Global properties | |
114 | */ | |
d20d3174 | 115 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
f453ba04 DA |
116 | { { DRM_MODE_DPMS_ON, "On" }, |
117 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
118 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
119 | { DRM_MODE_DPMS_OFF, "Off" } | |
120 | }; | |
121 | ||
122 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
123 | ||
9922ab5a RC |
124 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
125 | { | |
126 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
127 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
128 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
129 | }; | |
130 | ||
f453ba04 DA |
131 | /* |
132 | * Optional properties | |
133 | */ | |
d20d3174 | 134 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 135 | { |
53bd8389 JB |
136 | { DRM_MODE_SCALE_NONE, "None" }, |
137 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
138 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
139 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
140 | }; |
141 | ||
f453ba04 DA |
142 | /* |
143 | * Non-global properties, but "required" for certain connectors. | |
144 | */ | |
d20d3174 | 145 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
146 | { |
147 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
148 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
149 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
150 | }; | |
151 | ||
152 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
153 | ||
d20d3174 | 154 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
155 | { |
156 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
157 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
158 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
159 | }; | |
160 | ||
161 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
162 | drm_dvi_i_subconnector_enum_list) | |
163 | ||
d20d3174 | 164 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
165 | { |
166 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
167 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
168 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
169 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 170 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
171 | }; |
172 | ||
173 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
174 | ||
d20d3174 | 175 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
176 | { |
177 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
178 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
179 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
180 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 181 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
182 | }; |
183 | ||
184 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
185 | drm_tv_subconnector_enum_list) | |
186 | ||
d20d3174 | 187 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
188 | { DRM_MODE_DIRTY_OFF, "Off" }, |
189 | { DRM_MODE_DIRTY_ON, "On" }, | |
190 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
191 | }; | |
192 | ||
f453ba04 DA |
193 | struct drm_conn_prop_enum_list { |
194 | int type; | |
d20d3174 | 195 | const char *name; |
b21e3afe | 196 | struct ida ida; |
f453ba04 DA |
197 | }; |
198 | ||
199 | /* | |
200 | * Connector and encoder types. | |
201 | */ | |
202 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
203 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
204 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
205 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
206 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
207 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
208 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
209 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
210 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
211 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
212 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
213 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
214 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
215 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
216 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
217 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
218 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 219 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
220 | }; |
221 | ||
d20d3174 | 222 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
223 | { { DRM_MODE_ENCODER_NONE, "None" }, |
224 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
225 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
226 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
227 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 228 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 229 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
f453ba04 DA |
230 | }; |
231 | ||
ac1bb36c JB |
232 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
233 | { | |
234 | { SubPixelUnknown, "Unknown" }, | |
235 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
236 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
237 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
238 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
239 | { SubPixelNone, "None" }, | |
240 | }; | |
241 | ||
b21e3afe IM |
242 | void drm_connector_ida_init(void) |
243 | { | |
244 | int i; | |
245 | ||
246 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
247 | ida_init(&drm_connector_enum_list[i].ida); | |
248 | } | |
249 | ||
250 | void drm_connector_ida_destroy(void) | |
251 | { | |
252 | int i; | |
253 | ||
254 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
255 | ida_destroy(&drm_connector_enum_list[i].ida); | |
256 | } | |
257 | ||
c8e32cc1 DV |
258 | /** |
259 | * drm_get_encoder_name - return a string for encoder | |
260 | * @encoder: encoder to compute name of | |
261 | * | |
262 | * Note that the buffer used by this function is globally shared and owned by | |
263 | * the function itself. | |
264 | * | |
265 | * FIXME: This isn't really multithreading safe. | |
266 | */ | |
d20d3174 | 267 | const char *drm_get_encoder_name(const struct drm_encoder *encoder) |
f453ba04 DA |
268 | { |
269 | static char buf[32]; | |
270 | ||
271 | snprintf(buf, 32, "%s-%d", | |
272 | drm_encoder_enum_list[encoder->encoder_type].name, | |
273 | encoder->base.id); | |
274 | return buf; | |
275 | } | |
13a8195b | 276 | EXPORT_SYMBOL(drm_get_encoder_name); |
f453ba04 | 277 | |
c8e32cc1 DV |
278 | /** |
279 | * drm_get_connector_name - return a string for connector | |
280 | * @connector: connector to compute name of | |
281 | * | |
282 | * Note that the buffer used by this function is globally shared and owned by | |
283 | * the function itself. | |
284 | * | |
285 | * FIXME: This isn't really multithreading safe. | |
286 | */ | |
d20d3174 | 287 | const char *drm_get_connector_name(const struct drm_connector *connector) |
f453ba04 DA |
288 | { |
289 | static char buf[32]; | |
290 | ||
291 | snprintf(buf, 32, "%s-%d", | |
292 | drm_connector_enum_list[connector->connector_type].name, | |
293 | connector->connector_type_id); | |
294 | return buf; | |
295 | } | |
296 | EXPORT_SYMBOL(drm_get_connector_name); | |
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 | ||
786b99ed DV |
412 | /** |
413 | * drm_mode_object_find - look up a drm object with static lifetime | |
414 | * @dev: drm device | |
415 | * @id: id of the mode object | |
416 | * @type: type of the mode object | |
417 | * | |
418 | * Note that framebuffers cannot be looked up with this functions - since those | |
419 | * are reference counted, they need special treatment. | |
420 | */ | |
7a9c9060 DV |
421 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
422 | uint32_t id, uint32_t type) | |
f453ba04 | 423 | { |
ad2563c2 | 424 | struct drm_mode_object *obj = NULL; |
f453ba04 | 425 | |
786b99ed DV |
426 | /* Framebuffers are reference counted and need their own lookup |
427 | * function.*/ | |
428 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
429 | ||
ad2563c2 | 430 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
431 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
432 | if (!obj || (obj->type != type) || (obj->id != id)) | |
ad2563c2 JB |
433 | obj = NULL; |
434 | mutex_unlock(&dev->mode_config.idr_mutex); | |
f453ba04 DA |
435 | |
436 | return obj; | |
437 | } | |
438 | EXPORT_SYMBOL(drm_mode_object_find); | |
439 | ||
f453ba04 DA |
440 | /** |
441 | * drm_framebuffer_init - initialize a framebuffer | |
442 | * @dev: DRM device | |
065a50ed DV |
443 | * @fb: framebuffer to be initialized |
444 | * @funcs: ... with these functions | |
f453ba04 | 445 | * |
f453ba04 DA |
446 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
447 | * functions & device file and adds it to the master fd list. | |
448 | * | |
4b096ac1 DV |
449 | * IMPORTANT: |
450 | * This functions publishes the fb and makes it available for concurrent access | |
451 | * by other users. Which means by this point the fb _must_ be fully set up - | |
452 | * since all the fb attributes are invariant over its lifetime, no further | |
453 | * locking but only correct reference counting is required. | |
454 | * | |
c8e32cc1 | 455 | * Returns: |
af901ca1 | 456 | * Zero on success, error code on failure. |
f453ba04 DA |
457 | */ |
458 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
459 | const struct drm_framebuffer_funcs *funcs) | |
460 | { | |
461 | int ret; | |
462 | ||
4b096ac1 | 463 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 464 | kref_init(&fb->refcount); |
4b096ac1 DV |
465 | INIT_LIST_HEAD(&fb->filp_head); |
466 | fb->dev = dev; | |
467 | fb->funcs = funcs; | |
f7eff60e | 468 | |
f453ba04 | 469 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 470 | if (ret) |
4b096ac1 | 471 | goto out; |
f453ba04 | 472 | |
2b677e8c DV |
473 | /* Grab the idr reference. */ |
474 | drm_framebuffer_reference(fb); | |
475 | ||
f453ba04 DA |
476 | dev->mode_config.num_fb++; |
477 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
478 | out: |
479 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
480 | |
481 | return 0; | |
482 | } | |
483 | EXPORT_SYMBOL(drm_framebuffer_init); | |
484 | ||
f7eff60e RC |
485 | static void drm_framebuffer_free(struct kref *kref) |
486 | { | |
487 | struct drm_framebuffer *fb = | |
488 | container_of(kref, struct drm_framebuffer, refcount); | |
489 | fb->funcs->destroy(fb); | |
490 | } | |
491 | ||
2b677e8c DV |
492 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
493 | uint32_t id) | |
494 | { | |
495 | struct drm_mode_object *obj = NULL; | |
496 | struct drm_framebuffer *fb; | |
497 | ||
498 | mutex_lock(&dev->mode_config.idr_mutex); | |
499 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
500 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
501 | fb = NULL; | |
502 | else | |
503 | fb = obj_to_fb(obj); | |
504 | mutex_unlock(&dev->mode_config.idr_mutex); | |
505 | ||
506 | return fb; | |
507 | } | |
508 | ||
786b99ed DV |
509 | /** |
510 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
511 | * @dev: drm device | |
512 | * @id: id of the fb object | |
513 | * | |
514 | * If successful, this grabs an additional reference to the framebuffer - | |
515 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 516 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
517 | */ |
518 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
519 | uint32_t id) | |
520 | { | |
786b99ed DV |
521 | struct drm_framebuffer *fb; |
522 | ||
523 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 524 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed | 525 | if (fb) |
9131d3d8 | 526 | drm_framebuffer_reference(fb); |
786b99ed DV |
527 | mutex_unlock(&dev->mode_config.fb_lock); |
528 | ||
529 | return fb; | |
530 | } | |
531 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
532 | ||
f7eff60e RC |
533 | /** |
534 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
535 | * @fb: framebuffer to unref |
536 | * | |
537 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
538 | */ |
539 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
540 | { | |
f7eff60e | 541 | DRM_DEBUG("FB ID: %d\n", fb->base.id); |
f7eff60e RC |
542 | kref_put(&fb->refcount, drm_framebuffer_free); |
543 | } | |
544 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
545 | ||
546 | /** | |
547 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 548 | * @fb: framebuffer |
c8e32cc1 DV |
549 | * |
550 | * This functions increments the fb's refcount. | |
f7eff60e RC |
551 | */ |
552 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
553 | { | |
554 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
555 | kref_get(&fb->refcount); | |
556 | } | |
557 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
558 | ||
2b677e8c DV |
559 | static void drm_framebuffer_free_bug(struct kref *kref) |
560 | { | |
561 | BUG(); | |
562 | } | |
563 | ||
6c2a7532 DV |
564 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
565 | { | |
566 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
567 | kref_put(&fb->refcount, drm_framebuffer_free_bug); | |
568 | } | |
569 | ||
2b677e8c DV |
570 | /* dev->mode_config.fb_lock must be held! */ |
571 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
572 | struct drm_framebuffer *fb) | |
573 | { | |
574 | mutex_lock(&dev->mode_config.idr_mutex); | |
575 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
576 | mutex_unlock(&dev->mode_config.idr_mutex); | |
577 | ||
578 | fb->base.id = 0; | |
579 | ||
6c2a7532 | 580 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
581 | } |
582 | ||
36206361 DV |
583 | /** |
584 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
585 | * @fb: fb to unregister | |
586 | * | |
587 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
588 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
589 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
590 | * locking inversion). | |
591 | */ | |
592 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
593 | { | |
2b677e8c DV |
594 | struct drm_device *dev = fb->dev; |
595 | ||
596 | mutex_lock(&dev->mode_config.fb_lock); | |
597 | /* Mark fb as reaped and drop idr ref. */ | |
598 | __drm_framebuffer_unregister(dev, fb); | |
599 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
600 | } |
601 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
602 | ||
f453ba04 DA |
603 | /** |
604 | * drm_framebuffer_cleanup - remove a framebuffer object | |
605 | * @fb: framebuffer to remove | |
606 | * | |
c8e32cc1 DV |
607 | * Cleanup framebuffer. This function is intended to be used from the drivers |
608 | * ->destroy callback. It can also be used to clean up driver private | |
609 | * framebuffers embedded into a larger structure. | |
36206361 DV |
610 | * |
611 | * Note that this function does not remove the fb from active usuage - if it is | |
612 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
613 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
614 | * | |
615 | * Also, the framebuffer will not be removed from the lookup idr - for | |
616 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
617 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
618 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
619 | */ |
620 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
621 | { |
622 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 623 | |
4b096ac1 | 624 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
625 | list_del(&fb->head); |
626 | dev->mode_config.num_fb--; | |
4b096ac1 | 627 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
628 | } |
629 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
630 | ||
631 | /** | |
632 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
633 | * @fb: framebuffer to remove | |
634 | * | |
f7eff60e | 635 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 636 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
637 | * passed-in framebuffer. Might take the modeset locks. |
638 | * | |
639 | * Note that this function optimizes the cleanup away if the caller holds the | |
640 | * last reference to the framebuffer. It is also guaranteed to not take the | |
641 | * modeset locks in this case. | |
f7eff60e RC |
642 | */ |
643 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
644 | { |
645 | struct drm_device *dev = fb->dev; | |
646 | struct drm_crtc *crtc; | |
8cf5c917 | 647 | struct drm_plane *plane; |
5ef5f72f DA |
648 | struct drm_mode_set set; |
649 | int ret; | |
f453ba04 | 650 | |
4b096ac1 | 651 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 652 | |
b62584e3 DV |
653 | /* |
654 | * drm ABI mandates that we remove any deleted framebuffers from active | |
655 | * useage. But since most sane clients only remove framebuffers they no | |
656 | * longer need, try to optimize this away. | |
657 | * | |
658 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
659 | * means that we're the last holder and can skip it. Also, the refcount | |
660 | * can never increase from 1 again, so we don't need any barriers or | |
661 | * locks. | |
662 | * | |
663 | * Note that userspace could try to race with use and instate a new | |
664 | * usage _after_ we've cleared all current ones. End result will be an | |
665 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
666 | * in this manner. | |
667 | */ | |
668 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
669 | drm_modeset_lock_all(dev); | |
670 | /* remove from any CRTC */ | |
671 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 672 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
673 | /* should turn off the crtc */ |
674 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
675 | set.crtc = crtc; | |
676 | set.fb = NULL; | |
677 | ret = drm_mode_set_config_internal(&set); | |
678 | if (ret) | |
679 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
680 | } | |
5ef5f72f | 681 | } |
f453ba04 | 682 | |
b62584e3 | 683 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
684 | if (plane->fb == fb) |
685 | drm_plane_force_disable(plane); | |
8cf5c917 | 686 | } |
b62584e3 | 687 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
688 | } |
689 | ||
f7eff60e | 690 | drm_framebuffer_unreference(fb); |
f453ba04 | 691 | } |
f7eff60e | 692 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 DA |
693 | |
694 | /** | |
e13161af MR |
695 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
696 | * specified primary and cursor planes. | |
f453ba04 DA |
697 | * @dev: DRM device |
698 | * @crtc: CRTC object to init | |
e13161af MR |
699 | * @primary: Primary plane for CRTC |
700 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
701 | * @funcs: callbacks for the new CRTC |
702 | * | |
ad6f5c34 | 703 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 704 | * |
c8e32cc1 | 705 | * Returns: |
6bfc56aa | 706 | * Zero on success, error code on failure. |
f453ba04 | 707 | */ |
e13161af MR |
708 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
709 | struct drm_plane *primary, | |
710 | void *cursor, | |
711 | const struct drm_crtc_funcs *funcs) | |
f453ba04 | 712 | { |
6bfc56aa VS |
713 | int ret; |
714 | ||
f453ba04 DA |
715 | crtc->dev = dev; |
716 | crtc->funcs = funcs; | |
7c80e128 | 717 | crtc->invert_dimensions = false; |
f453ba04 | 718 | |
84849903 | 719 | drm_modeset_lock_all(dev); |
29494c17 DV |
720 | mutex_init(&crtc->mutex); |
721 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
6bfc56aa VS |
722 | |
723 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
724 | if (ret) | |
725 | goto out; | |
f453ba04 | 726 | |
bffd9de0 PZ |
727 | crtc->base.properties = &crtc->properties; |
728 | ||
f453ba04 DA |
729 | list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
730 | dev->mode_config.num_crtc++; | |
6bfc56aa | 731 | |
e13161af MR |
732 | crtc->primary = primary; |
733 | if (primary) | |
734 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
735 | ||
6bfc56aa | 736 | out: |
84849903 | 737 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
738 | |
739 | return ret; | |
f453ba04 | 740 | } |
e13161af | 741 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
742 | |
743 | /** | |
ad6f5c34 | 744 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
745 | * @crtc: CRTC to cleanup |
746 | * | |
ad6f5c34 VS |
747 | * This function cleans up @crtc and removes it from the DRM mode setting |
748 | * core. Note that the function does *not* free the crtc structure itself, | |
749 | * this is the responsibility of the caller. | |
f453ba04 DA |
750 | */ |
751 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
752 | { | |
753 | struct drm_device *dev = crtc->dev; | |
754 | ||
9e1c156f SK |
755 | kfree(crtc->gamma_store); |
756 | crtc->gamma_store = NULL; | |
f453ba04 DA |
757 | |
758 | drm_mode_object_put(dev, &crtc->base); | |
759 | list_del(&crtc->head); | |
760 | dev->mode_config.num_crtc--; | |
761 | } | |
762 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
763 | ||
db5f7a6e RK |
764 | /** |
765 | * drm_crtc_index - find the index of a registered CRTC | |
766 | * @crtc: CRTC to find index for | |
767 | * | |
768 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
769 | * device's list of CRTCs. | |
770 | */ | |
771 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
772 | { | |
773 | unsigned int index = 0; | |
774 | struct drm_crtc *tmp; | |
775 | ||
776 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
777 | if (tmp == crtc) | |
778 | return index; | |
779 | ||
780 | index++; | |
781 | } | |
782 | ||
783 | BUG(); | |
784 | } | |
785 | EXPORT_SYMBOL(drm_crtc_index); | |
786 | ||
86f422d5 | 787 | /* |
f453ba04 DA |
788 | * drm_mode_remove - remove and free a mode |
789 | * @connector: connector list to modify | |
790 | * @mode: mode to remove | |
791 | * | |
f453ba04 DA |
792 | * Remove @mode from @connector's mode list, then free it. |
793 | */ | |
86f422d5 LD |
794 | static void drm_mode_remove(struct drm_connector *connector, |
795 | struct drm_display_mode *mode) | |
f453ba04 DA |
796 | { |
797 | list_del(&mode->head); | |
554f1d78 | 798 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 799 | } |
f453ba04 DA |
800 | |
801 | /** | |
802 | * drm_connector_init - Init a preallocated connector | |
803 | * @dev: DRM device | |
804 | * @connector: the connector to init | |
805 | * @funcs: callbacks for this connector | |
065a50ed | 806 | * @connector_type: user visible type of the connector |
f453ba04 | 807 | * |
f453ba04 DA |
808 | * Initialises a preallocated connector. Connectors should be |
809 | * subclassed as part of driver connector objects. | |
6bfc56aa | 810 | * |
c8e32cc1 | 811 | * Returns: |
6bfc56aa | 812 | * Zero on success, error code on failure. |
f453ba04 | 813 | */ |
6bfc56aa VS |
814 | int drm_connector_init(struct drm_device *dev, |
815 | struct drm_connector *connector, | |
816 | const struct drm_connector_funcs *funcs, | |
817 | int connector_type) | |
f453ba04 | 818 | { |
6bfc56aa | 819 | int ret; |
b21e3afe IM |
820 | struct ida *connector_ida = |
821 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 822 | |
84849903 | 823 | drm_modeset_lock_all(dev); |
f453ba04 | 824 | |
6bfc56aa VS |
825 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
826 | if (ret) | |
827 | goto out; | |
828 | ||
7e3bdf4a | 829 | connector->base.properties = &connector->properties; |
f453ba04 DA |
830 | connector->dev = dev; |
831 | connector->funcs = funcs; | |
f453ba04 DA |
832 | connector->connector_type = connector_type; |
833 | connector->connector_type_id = | |
b21e3afe IM |
834 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
835 | if (connector->connector_type_id < 0) { | |
836 | ret = connector->connector_type_id; | |
837 | drm_mode_object_put(dev, &connector->base); | |
838 | goto out; | |
839 | } | |
f453ba04 DA |
840 | INIT_LIST_HEAD(&connector->probed_modes); |
841 | INIT_LIST_HEAD(&connector->modes); | |
842 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 843 | connector->status = connector_status_unknown; |
f453ba04 DA |
844 | |
845 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
846 | dev->mode_config.num_connector++; | |
847 | ||
a7331e5c | 848 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 849 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
850 | dev->mode_config.edid_property, |
851 | 0); | |
f453ba04 | 852 | |
58495563 | 853 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
854 | dev->mode_config.dpms_property, 0); |
855 | ||
6bfc56aa | 856 | out: |
84849903 | 857 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
858 | |
859 | return ret; | |
f453ba04 DA |
860 | } |
861 | EXPORT_SYMBOL(drm_connector_init); | |
862 | ||
863 | /** | |
864 | * drm_connector_cleanup - cleans up an initialised connector | |
865 | * @connector: connector to cleanup | |
866 | * | |
f453ba04 DA |
867 | * Cleans up the connector but doesn't free the object. |
868 | */ | |
869 | void drm_connector_cleanup(struct drm_connector *connector) | |
870 | { | |
871 | struct drm_device *dev = connector->dev; | |
872 | struct drm_display_mode *mode, *t; | |
873 | ||
874 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
875 | drm_mode_remove(connector, mode); | |
876 | ||
877 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
878 | drm_mode_remove(connector, mode); | |
879 | ||
b21e3afe IM |
880 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
881 | connector->connector_type_id); | |
882 | ||
f453ba04 DA |
883 | drm_mode_object_put(dev, &connector->base); |
884 | list_del(&connector->head); | |
6380c509 | 885 | dev->mode_config.num_connector--; |
f453ba04 DA |
886 | } |
887 | EXPORT_SYMBOL(drm_connector_cleanup); | |
888 | ||
c8e32cc1 DV |
889 | /** |
890 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
891 | * @dev: drm device | |
892 | * | |
893 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
894 | * be call when the device is disconnected, e.g. from an usb driver's | |
895 | * ->disconnect callback. | |
896 | */ | |
cbc7e221 DA |
897 | void drm_connector_unplug_all(struct drm_device *dev) |
898 | { | |
899 | struct drm_connector *connector; | |
900 | ||
901 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
902 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
903 | drm_sysfs_connector_remove(connector); | |
904 | ||
905 | } | |
906 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
907 | ||
c8e32cc1 DV |
908 | /** |
909 | * drm_bridge_init - initialize a drm transcoder/bridge | |
910 | * @dev: drm device | |
911 | * @bridge: transcoder/bridge to set up | |
912 | * @funcs: bridge function table | |
913 | * | |
914 | * Initialises a preallocated bridge. Bridges should be | |
915 | * subclassed as part of driver connector objects. | |
916 | * | |
917 | * Returns: | |
918 | * Zero on success, error code on failure. | |
919 | */ | |
3b336ec4 SP |
920 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
921 | const struct drm_bridge_funcs *funcs) | |
922 | { | |
923 | int ret; | |
924 | ||
925 | drm_modeset_lock_all(dev); | |
926 | ||
927 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
928 | if (ret) | |
929 | goto out; | |
930 | ||
931 | bridge->dev = dev; | |
932 | bridge->funcs = funcs; | |
933 | ||
934 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
935 | dev->mode_config.num_bridge++; | |
936 | ||
937 | out: | |
938 | drm_modeset_unlock_all(dev); | |
939 | return ret; | |
940 | } | |
941 | EXPORT_SYMBOL(drm_bridge_init); | |
942 | ||
c8e32cc1 DV |
943 | /** |
944 | * drm_bridge_cleanup - cleans up an initialised bridge | |
945 | * @bridge: bridge to cleanup | |
946 | * | |
947 | * Cleans up the bridge but doesn't free the object. | |
948 | */ | |
3b336ec4 SP |
949 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
950 | { | |
951 | struct drm_device *dev = bridge->dev; | |
952 | ||
953 | drm_modeset_lock_all(dev); | |
954 | drm_mode_object_put(dev, &bridge->base); | |
955 | list_del(&bridge->head); | |
956 | dev->mode_config.num_bridge--; | |
957 | drm_modeset_unlock_all(dev); | |
958 | } | |
959 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
960 | ||
c8e32cc1 DV |
961 | /** |
962 | * drm_encoder_init - Init a preallocated encoder | |
963 | * @dev: drm device | |
964 | * @encoder: the encoder to init | |
965 | * @funcs: callbacks for this encoder | |
966 | * @encoder_type: user visible type of the encoder | |
967 | * | |
968 | * Initialises a preallocated encoder. Encoder should be | |
969 | * subclassed as part of driver encoder objects. | |
970 | * | |
971 | * Returns: | |
972 | * Zero on success, error code on failure. | |
973 | */ | |
6bfc56aa | 974 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
975 | struct drm_encoder *encoder, |
976 | const struct drm_encoder_funcs *funcs, | |
977 | int encoder_type) | |
f453ba04 | 978 | { |
6bfc56aa VS |
979 | int ret; |
980 | ||
84849903 | 981 | drm_modeset_lock_all(dev); |
f453ba04 | 982 | |
6bfc56aa VS |
983 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
984 | if (ret) | |
985 | goto out; | |
f453ba04 | 986 | |
6bfc56aa | 987 | encoder->dev = dev; |
f453ba04 DA |
988 | encoder->encoder_type = encoder_type; |
989 | encoder->funcs = funcs; | |
990 | ||
991 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
992 | dev->mode_config.num_encoder++; | |
993 | ||
6bfc56aa | 994 | out: |
84849903 | 995 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
996 | |
997 | return ret; | |
f453ba04 DA |
998 | } |
999 | EXPORT_SYMBOL(drm_encoder_init); | |
1000 | ||
c8e32cc1 DV |
1001 | /** |
1002 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1003 | * @encoder: encoder to cleanup | |
1004 | * | |
1005 | * Cleans up the encoder but doesn't free the object. | |
1006 | */ | |
f453ba04 DA |
1007 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1008 | { | |
1009 | struct drm_device *dev = encoder->dev; | |
84849903 | 1010 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1011 | drm_mode_object_put(dev, &encoder->base); |
1012 | list_del(&encoder->head); | |
6380c509 | 1013 | dev->mode_config.num_encoder--; |
84849903 | 1014 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1015 | } |
1016 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1017 | ||
35f2c3ae | 1018 | /** |
dc415ff9 | 1019 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1020 | * @dev: DRM device |
1021 | * @plane: plane object to init | |
1022 | * @possible_crtcs: bitmask of possible CRTCs | |
1023 | * @funcs: callbacks for the new plane | |
1024 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1025 | * @format_count: number of elements in @formats | |
dc415ff9 | 1026 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1027 | * |
dc415ff9 | 1028 | * Initializes a plane object of type @type. |
35f2c3ae | 1029 | * |
c8e32cc1 | 1030 | * Returns: |
35f2c3ae VS |
1031 | * Zero on success, error code on failure. |
1032 | */ | |
dc415ff9 MR |
1033 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1034 | unsigned long possible_crtcs, | |
1035 | const struct drm_plane_funcs *funcs, | |
1036 | const uint32_t *formats, uint32_t format_count, | |
1037 | enum drm_plane_type type) | |
8cf5c917 | 1038 | { |
6bfc56aa VS |
1039 | int ret; |
1040 | ||
84849903 | 1041 | drm_modeset_lock_all(dev); |
8cf5c917 | 1042 | |
6bfc56aa VS |
1043 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1044 | if (ret) | |
1045 | goto out; | |
1046 | ||
4d93914a | 1047 | plane->base.properties = &plane->properties; |
8cf5c917 | 1048 | plane->dev = dev; |
8cf5c917 JB |
1049 | plane->funcs = funcs; |
1050 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1051 | GFP_KERNEL); | |
1052 | if (!plane->format_types) { | |
1053 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1054 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1055 | ret = -ENOMEM; |
1056 | goto out; | |
8cf5c917 JB |
1057 | } |
1058 | ||
308e5bcb | 1059 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1060 | plane->format_count = format_count; |
1061 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1062 | plane->type = type; |
8cf5c917 | 1063 | |
dc415ff9 MR |
1064 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
1065 | dev->mode_config.num_total_plane++; | |
1066 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1067 | dev->mode_config.num_overlay_plane++; | |
8cf5c917 | 1068 | |
9922ab5a RC |
1069 | drm_object_attach_property(&plane->base, |
1070 | dev->mode_config.plane_type_property, | |
1071 | plane->type); | |
1072 | ||
6bfc56aa | 1073 | out: |
84849903 | 1074 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1075 | |
6bfc56aa | 1076 | return ret; |
8cf5c917 | 1077 | } |
dc415ff9 MR |
1078 | EXPORT_SYMBOL(drm_universal_plane_init); |
1079 | ||
1080 | /** | |
1081 | * drm_plane_init - Initialize a legacy plane | |
1082 | * @dev: DRM device | |
1083 | * @plane: plane object to init | |
1084 | * @possible_crtcs: bitmask of possible CRTCs | |
1085 | * @funcs: callbacks for the new plane | |
1086 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1087 | * @format_count: number of elements in @formats | |
1088 | * @is_primary: plane type (primary vs overlay) | |
1089 | * | |
1090 | * Legacy API to initialize a DRM plane. | |
1091 | * | |
1092 | * New drivers should call drm_universal_plane_init() instead. | |
1093 | * | |
1094 | * Returns: | |
1095 | * Zero on success, error code on failure. | |
1096 | */ | |
1097 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1098 | unsigned long possible_crtcs, | |
1099 | const struct drm_plane_funcs *funcs, | |
1100 | const uint32_t *formats, uint32_t format_count, | |
1101 | bool is_primary) | |
1102 | { | |
1103 | enum drm_plane_type type; | |
1104 | ||
1105 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1106 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1107 | formats, format_count, type); | |
1108 | } | |
8cf5c917 JB |
1109 | EXPORT_SYMBOL(drm_plane_init); |
1110 | ||
35f2c3ae VS |
1111 | /** |
1112 | * drm_plane_cleanup - Clean up the core plane usage | |
1113 | * @plane: plane to cleanup | |
1114 | * | |
1115 | * This function cleans up @plane and removes it from the DRM mode setting | |
1116 | * core. Note that the function does *not* free the plane structure itself, | |
1117 | * this is the responsibility of the caller. | |
1118 | */ | |
8cf5c917 JB |
1119 | void drm_plane_cleanup(struct drm_plane *plane) |
1120 | { | |
1121 | struct drm_device *dev = plane->dev; | |
1122 | ||
84849903 | 1123 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1124 | kfree(plane->format_types); |
1125 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1126 | |
1127 | BUG_ON(list_empty(&plane->head)); | |
1128 | ||
1129 | list_del(&plane->head); | |
1130 | dev->mode_config.num_total_plane--; | |
1131 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1132 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1133 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1134 | } |
1135 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1136 | ||
35f2c3ae VS |
1137 | /** |
1138 | * drm_plane_force_disable - Forcibly disable a plane | |
1139 | * @plane: plane to disable | |
1140 | * | |
1141 | * Forces the plane to be disabled. | |
1142 | * | |
1143 | * Used when the plane's current framebuffer is destroyed, | |
1144 | * and when restoring fbdev mode. | |
1145 | */ | |
9125e618 VS |
1146 | void drm_plane_force_disable(struct drm_plane *plane) |
1147 | { | |
1148 | int ret; | |
1149 | ||
1150 | if (!plane->fb) | |
1151 | return; | |
1152 | ||
1153 | ret = plane->funcs->disable_plane(plane); | |
1154 | if (ret) | |
1155 | DRM_ERROR("failed to disable plane with busy fb\n"); | |
1156 | /* disconnect the plane from the fb and crtc: */ | |
1157 | __drm_framebuffer_unreference(plane->fb); | |
1158 | plane->fb = NULL; | |
1159 | plane->crtc = NULL; | |
1160 | } | |
1161 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1162 | ||
f453ba04 DA |
1163 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1164 | { | |
1165 | struct drm_property *edid; | |
1166 | struct drm_property *dpms; | |
f453ba04 DA |
1167 | |
1168 | /* | |
1169 | * Standard properties (apply to all connectors) | |
1170 | */ | |
1171 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1172 | DRM_MODE_PROP_IMMUTABLE, | |
1173 | "EDID", 0); | |
1174 | dev->mode_config.edid_property = edid; | |
1175 | ||
4a67d391 SH |
1176 | dpms = drm_property_create_enum(dev, 0, |
1177 | "DPMS", drm_dpms_enum_list, | |
1178 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1179 | dev->mode_config.dpms_property = dpms; |
1180 | ||
1181 | return 0; | |
1182 | } | |
1183 | ||
9922ab5a RC |
1184 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1185 | { | |
1186 | struct drm_property *type; | |
1187 | ||
1188 | /* | |
1189 | * Standard properties (apply to all planes) | |
1190 | */ | |
1191 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
1192 | "type", drm_plane_type_enum_list, | |
1193 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
1194 | dev->mode_config.plane_type_property = type; | |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
f453ba04 DA |
1199 | /** |
1200 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1201 | * @dev: DRM device | |
1202 | * | |
1203 | * Called by a driver the first time a DVI-I connector is made. | |
1204 | */ | |
1205 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1206 | { | |
1207 | struct drm_property *dvi_i_selector; | |
1208 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1209 | |
1210 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1211 | return 0; | |
1212 | ||
1213 | dvi_i_selector = | |
4a67d391 | 1214 | drm_property_create_enum(dev, 0, |
f453ba04 | 1215 | "select subconnector", |
4a67d391 | 1216 | drm_dvi_i_select_enum_list, |
f453ba04 | 1217 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1218 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1219 | ||
4a67d391 | 1220 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1221 | "subconnector", |
4a67d391 | 1222 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1223 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1224 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1225 | ||
1226 | return 0; | |
1227 | } | |
1228 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1229 | ||
1230 | /** | |
1231 | * drm_create_tv_properties - create TV specific connector properties | |
1232 | * @dev: DRM device | |
1233 | * @num_modes: number of different TV formats (modes) supported | |
1234 | * @modes: array of pointers to strings containing name of each format | |
1235 | * | |
1236 | * Called by a driver's TV initialization routine, this function creates | |
1237 | * the TV specific connector properties for a given device. Caller is | |
1238 | * responsible for allocating a list of format names and passing them to | |
1239 | * this routine. | |
1240 | */ | |
1241 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1242 | char *modes[]) | |
1243 | { | |
1244 | struct drm_property *tv_selector; | |
1245 | struct drm_property *tv_subconnector; | |
1246 | int i; | |
1247 | ||
1248 | if (dev->mode_config.tv_select_subconnector_property) | |
1249 | return 0; | |
1250 | ||
1251 | /* | |
1252 | * Basic connector properties | |
1253 | */ | |
4a67d391 | 1254 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1255 | "select subconnector", |
4a67d391 | 1256 | drm_tv_select_enum_list, |
f453ba04 | 1257 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1258 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1259 | ||
1260 | tv_subconnector = | |
4a67d391 SH |
1261 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1262 | "subconnector", | |
1263 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1264 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1265 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1266 | ||
1267 | /* | |
1268 | * Other, TV specific properties: margins & TV modes. | |
1269 | */ | |
1270 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1271 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1272 | |
1273 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1274 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1275 | |
1276 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1277 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1278 | |
1279 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1280 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1281 | |
1282 | dev->mode_config.tv_mode_property = | |
1283 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1284 | "mode", num_modes); | |
1285 | for (i = 0; i < num_modes; i++) | |
1286 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1287 | i, modes[i]); | |
1288 | ||
b6b7902e | 1289 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1290 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1291 | |
1292 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1293 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1294 | |
1295 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1296 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1297 | |
a75f0236 | 1298 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1299 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1300 | |
1301 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1302 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1303 | |
1304 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1305 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1306 | |
f453ba04 DA |
1307 | return 0; |
1308 | } | |
1309 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1310 | ||
1311 | /** | |
1312 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1313 | * @dev: DRM device | |
1314 | * | |
1315 | * Called by a driver the first time it's needed, must be attached to desired | |
1316 | * connectors. | |
1317 | */ | |
1318 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1319 | { | |
1320 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1321 | |
1322 | if (dev->mode_config.scaling_mode_property) | |
1323 | return 0; | |
1324 | ||
1325 | scaling_mode = | |
4a67d391 SH |
1326 | drm_property_create_enum(dev, 0, "scaling mode", |
1327 | drm_scaling_mode_enum_list, | |
f453ba04 | 1328 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1329 | |
1330 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1331 | ||
1332 | return 0; | |
1333 | } | |
1334 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1335 | ||
884840aa JB |
1336 | /** |
1337 | * drm_mode_create_dirty_property - create dirty property | |
1338 | * @dev: DRM device | |
1339 | * | |
1340 | * Called by a driver the first time it's needed, must be attached to desired | |
1341 | * connectors. | |
1342 | */ | |
1343 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1344 | { | |
1345 | struct drm_property *dirty_info; | |
884840aa JB |
1346 | |
1347 | if (dev->mode_config.dirty_info_property) | |
1348 | return 0; | |
1349 | ||
1350 | dirty_info = | |
4a67d391 | 1351 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1352 | "dirty", |
4a67d391 | 1353 | drm_dirty_info_enum_list, |
884840aa | 1354 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1355 | dev->mode_config.dirty_info_property = dirty_info; |
1356 | ||
1357 | return 0; | |
1358 | } | |
1359 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1360 | ||
ea9cbb06 | 1361 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1362 | { |
1363 | uint32_t total_objects = 0; | |
1364 | ||
1365 | total_objects += dev->mode_config.num_crtc; | |
1366 | total_objects += dev->mode_config.num_connector; | |
1367 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1368 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1369 | |
f453ba04 DA |
1370 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1371 | if (!group->id_list) | |
1372 | return -ENOMEM; | |
1373 | ||
1374 | group->num_crtcs = 0; | |
1375 | group->num_connectors = 0; | |
1376 | group->num_encoders = 0; | |
3b336ec4 | 1377 | group->num_bridges = 0; |
f453ba04 DA |
1378 | return 0; |
1379 | } | |
1380 | ||
c8e32cc1 DV |
1381 | /* |
1382 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1383 | * the drm core's responsibility to set up mode control groups. | |
1384 | */ | |
f453ba04 DA |
1385 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1386 | struct drm_mode_group *group) | |
1387 | { | |
1388 | struct drm_crtc *crtc; | |
1389 | struct drm_encoder *encoder; | |
1390 | struct drm_connector *connector; | |
3b336ec4 | 1391 | struct drm_bridge *bridge; |
f453ba04 DA |
1392 | int ret; |
1393 | ||
1394 | if ((ret = drm_mode_group_init(dev, group))) | |
1395 | return ret; | |
1396 | ||
1397 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1398 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1399 | ||
1400 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1401 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1402 | encoder->base.id; | |
1403 | ||
1404 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1405 | group->id_list[group->num_crtcs + group->num_encoders + | |
1406 | group->num_connectors++] = connector->base.id; | |
1407 | ||
3b336ec4 SP |
1408 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1409 | group->id_list[group->num_crtcs + group->num_encoders + | |
1410 | group->num_connectors + group->num_bridges++] = | |
1411 | bridge->base.id; | |
1412 | ||
f453ba04 DA |
1413 | return 0; |
1414 | } | |
9c1dfc55 | 1415 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1416 | |
f453ba04 DA |
1417 | /** |
1418 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1419 | * @out: drm_mode_modeinfo struct to return to the user | |
1420 | * @in: drm_display_mode to use | |
1421 | * | |
f453ba04 DA |
1422 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1423 | * the user. | |
1424 | */ | |
93bbf6db VS |
1425 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1426 | const struct drm_display_mode *in) | |
f453ba04 | 1427 | { |
e36fae38 VS |
1428 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1429 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1430 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1431 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1432 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1433 | "timing values too large for mode info\n"); | |
1434 | ||
f453ba04 DA |
1435 | out->clock = in->clock; |
1436 | out->hdisplay = in->hdisplay; | |
1437 | out->hsync_start = in->hsync_start; | |
1438 | out->hsync_end = in->hsync_end; | |
1439 | out->htotal = in->htotal; | |
1440 | out->hskew = in->hskew; | |
1441 | out->vdisplay = in->vdisplay; | |
1442 | out->vsync_start = in->vsync_start; | |
1443 | out->vsync_end = in->vsync_end; | |
1444 | out->vtotal = in->vtotal; | |
1445 | out->vscan = in->vscan; | |
1446 | out->vrefresh = in->vrefresh; | |
1447 | out->flags = in->flags; | |
1448 | out->type = in->type; | |
1449 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1450 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1451 | } | |
1452 | ||
1453 | /** | |
74afee7d | 1454 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1455 | * @out: drm_display_mode to return to the user |
1456 | * @in: drm_mode_modeinfo to use | |
1457 | * | |
f453ba04 DA |
1458 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1459 | * the caller. | |
90367bf6 | 1460 | * |
c8e32cc1 | 1461 | * Returns: |
90367bf6 | 1462 | * Zero on success, errno on failure. |
f453ba04 | 1463 | */ |
93bbf6db VS |
1464 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1465 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1466 | { |
90367bf6 VS |
1467 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1468 | return -ERANGE; | |
1469 | ||
5848ad40 DL |
1470 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1471 | return -EINVAL; | |
1472 | ||
f453ba04 DA |
1473 | out->clock = in->clock; |
1474 | out->hdisplay = in->hdisplay; | |
1475 | out->hsync_start = in->hsync_start; | |
1476 | out->hsync_end = in->hsync_end; | |
1477 | out->htotal = in->htotal; | |
1478 | out->hskew = in->hskew; | |
1479 | out->vdisplay = in->vdisplay; | |
1480 | out->vsync_start = in->vsync_start; | |
1481 | out->vsync_end = in->vsync_end; | |
1482 | out->vtotal = in->vtotal; | |
1483 | out->vscan = in->vscan; | |
1484 | out->vrefresh = in->vrefresh; | |
1485 | out->flags = in->flags; | |
1486 | out->type = in->type; | |
1487 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1488 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1489 | |
1490 | return 0; | |
f453ba04 DA |
1491 | } |
1492 | ||
1493 | /** | |
1494 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1495 | * @dev: drm device for the ioctl |
1496 | * @data: data pointer for the ioctl | |
1497 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1498 | * |
f453ba04 DA |
1499 | * Construct a set of configuration description structures and return |
1500 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1501 | * | |
1502 | * Called by the user via ioctl. | |
1503 | * | |
c8e32cc1 | 1504 | * Returns: |
f453ba04 DA |
1505 | * Zero on success, errno on failure. |
1506 | */ | |
1507 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1508 | struct drm_file *file_priv) | |
1509 | { | |
1510 | struct drm_mode_card_res *card_res = data; | |
1511 | struct list_head *lh; | |
1512 | struct drm_framebuffer *fb; | |
1513 | struct drm_connector *connector; | |
1514 | struct drm_crtc *crtc; | |
1515 | struct drm_encoder *encoder; | |
1516 | int ret = 0; | |
1517 | int connector_count = 0; | |
1518 | int crtc_count = 0; | |
1519 | int fb_count = 0; | |
1520 | int encoder_count = 0; | |
1521 | int copied = 0, i; | |
1522 | uint32_t __user *fb_id; | |
1523 | uint32_t __user *crtc_id; | |
1524 | uint32_t __user *connector_id; | |
1525 | uint32_t __user *encoder_id; | |
1526 | struct drm_mode_group *mode_group; | |
1527 | ||
fb3b06c8 DA |
1528 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1529 | return -EINVAL; | |
1530 | ||
f453ba04 | 1531 | |
4b096ac1 | 1532 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1533 | /* |
1534 | * For the non-control nodes we need to limit the list of resources | |
1535 | * by IDs in the group list for this node | |
1536 | */ | |
1537 | list_for_each(lh, &file_priv->fbs) | |
1538 | fb_count++; | |
1539 | ||
4b096ac1 DV |
1540 | /* handle this in 4 parts */ |
1541 | /* FBs */ | |
1542 | if (card_res->count_fbs >= fb_count) { | |
1543 | copied = 0; | |
1544 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1545 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1546 | if (put_user(fb->base.id, fb_id + copied)) { | |
1547 | mutex_unlock(&file_priv->fbs_lock); | |
1548 | return -EFAULT; | |
1549 | } | |
1550 | copied++; | |
1551 | } | |
1552 | } | |
1553 | card_res->count_fbs = fb_count; | |
1554 | mutex_unlock(&file_priv->fbs_lock); | |
1555 | ||
1556 | drm_modeset_lock_all(dev); | |
43683057 | 1557 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1558 | |
09f308f7 | 1559 | mode_group = NULL; |
f453ba04 DA |
1560 | list_for_each(lh, &dev->mode_config.crtc_list) |
1561 | crtc_count++; | |
1562 | ||
1563 | list_for_each(lh, &dev->mode_config.connector_list) | |
1564 | connector_count++; | |
1565 | ||
1566 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1567 | encoder_count++; | |
1568 | } else { | |
1569 | ||
09f308f7 | 1570 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1571 | crtc_count = mode_group->num_crtcs; |
1572 | connector_count = mode_group->num_connectors; | |
1573 | encoder_count = mode_group->num_encoders; | |
1574 | } | |
1575 | ||
1576 | card_res->max_height = dev->mode_config.max_height; | |
1577 | card_res->min_height = dev->mode_config.min_height; | |
1578 | card_res->max_width = dev->mode_config.max_width; | |
1579 | card_res->min_width = dev->mode_config.min_width; | |
1580 | ||
f453ba04 DA |
1581 | /* CRTCs */ |
1582 | if (card_res->count_crtcs >= crtc_count) { | |
1583 | copied = 0; | |
1584 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1585 | if (!mode_group) { |
f453ba04 DA |
1586 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1587 | head) { | |
9440106b | 1588 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1589 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1590 | ret = -EFAULT; | |
1591 | goto out; | |
1592 | } | |
1593 | copied++; | |
1594 | } | |
1595 | } else { | |
1596 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1597 | if (put_user(mode_group->id_list[i], | |
1598 | crtc_id + copied)) { | |
1599 | ret = -EFAULT; | |
1600 | goto out; | |
1601 | } | |
1602 | copied++; | |
1603 | } | |
1604 | } | |
1605 | } | |
1606 | card_res->count_crtcs = crtc_count; | |
1607 | ||
1608 | /* Encoders */ | |
1609 | if (card_res->count_encoders >= encoder_count) { | |
1610 | copied = 0; | |
1611 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1612 | if (!mode_group) { |
f453ba04 DA |
1613 | list_for_each_entry(encoder, |
1614 | &dev->mode_config.encoder_list, | |
1615 | head) { | |
9440106b JG |
1616 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
1617 | drm_get_encoder_name(encoder)); | |
f453ba04 DA |
1618 | if (put_user(encoder->base.id, encoder_id + |
1619 | copied)) { | |
1620 | ret = -EFAULT; | |
1621 | goto out; | |
1622 | } | |
1623 | copied++; | |
1624 | } | |
1625 | } else { | |
1626 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1627 | if (put_user(mode_group->id_list[i], | |
1628 | encoder_id + copied)) { | |
1629 | ret = -EFAULT; | |
1630 | goto out; | |
1631 | } | |
1632 | copied++; | |
1633 | } | |
1634 | ||
1635 | } | |
1636 | } | |
1637 | card_res->count_encoders = encoder_count; | |
1638 | ||
1639 | /* Connectors */ | |
1640 | if (card_res->count_connectors >= connector_count) { | |
1641 | copied = 0; | |
1642 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1643 | if (!mode_group) { |
f453ba04 DA |
1644 | list_for_each_entry(connector, |
1645 | &dev->mode_config.connector_list, | |
1646 | head) { | |
9440106b JG |
1647 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1648 | connector->base.id, | |
1649 | drm_get_connector_name(connector)); | |
f453ba04 DA |
1650 | if (put_user(connector->base.id, |
1651 | connector_id + copied)) { | |
1652 | ret = -EFAULT; | |
1653 | goto out; | |
1654 | } | |
1655 | copied++; | |
1656 | } | |
1657 | } else { | |
1658 | int start = mode_group->num_crtcs + | |
1659 | mode_group->num_encoders; | |
1660 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1661 | if (put_user(mode_group->id_list[i], | |
1662 | connector_id + copied)) { | |
1663 | ret = -EFAULT; | |
1664 | goto out; | |
1665 | } | |
1666 | copied++; | |
1667 | } | |
1668 | } | |
1669 | } | |
1670 | card_res->count_connectors = connector_count; | |
1671 | ||
9440106b | 1672 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1673 | card_res->count_connectors, card_res->count_encoders); |
1674 | ||
1675 | out: | |
84849903 | 1676 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1677 | return ret; |
1678 | } | |
1679 | ||
1680 | /** | |
1681 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1682 | * @dev: drm device for the ioctl |
1683 | * @data: data pointer for the ioctl | |
1684 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1685 | * |
f453ba04 DA |
1686 | * Construct a CRTC configuration structure to return to the user. |
1687 | * | |
1688 | * Called by the user via ioctl. | |
1689 | * | |
c8e32cc1 | 1690 | * Returns: |
f453ba04 DA |
1691 | * Zero on success, errno on failure. |
1692 | */ | |
1693 | int drm_mode_getcrtc(struct drm_device *dev, | |
1694 | void *data, struct drm_file *file_priv) | |
1695 | { | |
1696 | struct drm_mode_crtc *crtc_resp = data; | |
1697 | struct drm_crtc *crtc; | |
1698 | struct drm_mode_object *obj; | |
1699 | int ret = 0; | |
1700 | ||
fb3b06c8 DA |
1701 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1702 | return -EINVAL; | |
1703 | ||
84849903 | 1704 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1705 | |
1706 | obj = drm_mode_object_find(dev, crtc_resp->crtc_id, | |
1707 | DRM_MODE_OBJECT_CRTC); | |
1708 | if (!obj) { | |
f27657f2 | 1709 | ret = -ENOENT; |
f453ba04 DA |
1710 | goto out; |
1711 | } | |
1712 | crtc = obj_to_crtc(obj); | |
1713 | ||
1714 | crtc_resp->x = crtc->x; | |
1715 | crtc_resp->y = crtc->y; | |
1716 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
1717 | if (crtc->primary->fb) |
1718 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1719 | else |
1720 | crtc_resp->fb_id = 0; | |
1721 | ||
1722 | if (crtc->enabled) { | |
1723 | ||
1724 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1725 | crtc_resp->mode_valid = 1; | |
1726 | ||
1727 | } else { | |
1728 | crtc_resp->mode_valid = 0; | |
1729 | } | |
1730 | ||
1731 | out: | |
84849903 | 1732 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1733 | return ret; |
1734 | } | |
1735 | ||
61d8e328 DL |
1736 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1737 | const struct drm_file *file_priv) | |
1738 | { | |
1739 | /* | |
1740 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1741 | * modes, don't expose them. | |
1742 | */ | |
1743 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1744 | return false; | |
1745 | ||
1746 | return true; | |
1747 | } | |
1748 | ||
f453ba04 DA |
1749 | /** |
1750 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1751 | * @dev: drm device for the ioctl |
1752 | * @data: data pointer for the ioctl | |
1753 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1754 | * |
f453ba04 DA |
1755 | * Construct a connector configuration structure to return to the user. |
1756 | * | |
1757 | * Called by the user via ioctl. | |
1758 | * | |
c8e32cc1 | 1759 | * Returns: |
f453ba04 DA |
1760 | * Zero on success, errno on failure. |
1761 | */ | |
1762 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1763 | struct drm_file *file_priv) | |
1764 | { | |
1765 | struct drm_mode_get_connector *out_resp = data; | |
1766 | struct drm_mode_object *obj; | |
1767 | struct drm_connector *connector; | |
1768 | struct drm_display_mode *mode; | |
1769 | int mode_count = 0; | |
1770 | int props_count = 0; | |
1771 | int encoders_count = 0; | |
1772 | int ret = 0; | |
1773 | int copied = 0; | |
1774 | int i; | |
1775 | struct drm_mode_modeinfo u_mode; | |
1776 | struct drm_mode_modeinfo __user *mode_ptr; | |
1777 | uint32_t __user *prop_ptr; | |
1778 | uint64_t __user *prop_values; | |
1779 | uint32_t __user *encoder_ptr; | |
1780 | ||
fb3b06c8 DA |
1781 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1782 | return -EINVAL; | |
1783 | ||
f453ba04 DA |
1784 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1785 | ||
9440106b | 1786 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1787 | |
7b24056b | 1788 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 DA |
1789 | |
1790 | obj = drm_mode_object_find(dev, out_resp->connector_id, | |
1791 | DRM_MODE_OBJECT_CONNECTOR); | |
1792 | if (!obj) { | |
f27657f2 | 1793 | ret = -ENOENT; |
f453ba04 DA |
1794 | goto out; |
1795 | } | |
1796 | connector = obj_to_connector(obj); | |
1797 | ||
7f88a9be | 1798 | props_count = connector->properties.count; |
f453ba04 DA |
1799 | |
1800 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1801 | if (connector->encoder_ids[i] != 0) { | |
1802 | encoders_count++; | |
1803 | } | |
1804 | } | |
1805 | ||
1806 | if (out_resp->count_modes == 0) { | |
1807 | connector->funcs->fill_modes(connector, | |
1808 | dev->mode_config.max_width, | |
1809 | dev->mode_config.max_height); | |
1810 | } | |
1811 | ||
1812 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1813 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1814 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1815 | mode_count++; | |
f453ba04 DA |
1816 | |
1817 | out_resp->connector_id = connector->base.id; | |
1818 | out_resp->connector_type = connector->connector_type; | |
1819 | out_resp->connector_type_id = connector->connector_type_id; | |
1820 | out_resp->mm_width = connector->display_info.width_mm; | |
1821 | out_resp->mm_height = connector->display_info.height_mm; | |
1822 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1823 | out_resp->connection = connector->status; | |
1824 | if (connector->encoder) | |
1825 | out_resp->encoder_id = connector->encoder->base.id; | |
1826 | else | |
1827 | out_resp->encoder_id = 0; | |
1828 | ||
1829 | /* | |
1830 | * This ioctl is called twice, once to determine how much space is | |
1831 | * needed, and the 2nd time to fill it. | |
1832 | */ | |
1833 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1834 | copied = 0; | |
81f6c7f8 | 1835 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 1836 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
1837 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
1838 | continue; | |
1839 | ||
f453ba04 DA |
1840 | drm_crtc_convert_to_umode(&u_mode, mode); |
1841 | if (copy_to_user(mode_ptr + copied, | |
1842 | &u_mode, sizeof(u_mode))) { | |
1843 | ret = -EFAULT; | |
1844 | goto out; | |
1845 | } | |
1846 | copied++; | |
1847 | } | |
1848 | } | |
1849 | out_resp->count_modes = mode_count; | |
1850 | ||
1851 | if ((out_resp->count_props >= props_count) && props_count) { | |
1852 | copied = 0; | |
81f6c7f8 VS |
1853 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1854 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1855 | for (i = 0; i < connector->properties.count; i++) { |
1856 | if (put_user(connector->properties.ids[i], | |
1857 | prop_ptr + copied)) { | |
1858 | ret = -EFAULT; | |
1859 | goto out; | |
1860 | } | |
f453ba04 | 1861 | |
7f88a9be PZ |
1862 | if (put_user(connector->properties.values[i], |
1863 | prop_values + copied)) { | |
1864 | ret = -EFAULT; | |
1865 | goto out; | |
f453ba04 | 1866 | } |
7f88a9be | 1867 | copied++; |
f453ba04 DA |
1868 | } |
1869 | } | |
1870 | out_resp->count_props = props_count; | |
1871 | ||
1872 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1873 | copied = 0; | |
81f6c7f8 | 1874 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1875 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1876 | if (connector->encoder_ids[i] != 0) { | |
1877 | if (put_user(connector->encoder_ids[i], | |
1878 | encoder_ptr + copied)) { | |
1879 | ret = -EFAULT; | |
1880 | goto out; | |
1881 | } | |
1882 | copied++; | |
1883 | } | |
1884 | } | |
1885 | } | |
1886 | out_resp->count_encoders = encoders_count; | |
1887 | ||
1888 | out: | |
7b24056b DV |
1889 | mutex_unlock(&dev->mode_config.mutex); |
1890 | ||
f453ba04 DA |
1891 | return ret; |
1892 | } | |
1893 | ||
c8e32cc1 DV |
1894 | /** |
1895 | * drm_mode_getencoder - get encoder configuration | |
1896 | * @dev: drm device for the ioctl | |
1897 | * @data: data pointer for the ioctl | |
1898 | * @file_priv: drm file for the ioctl call | |
1899 | * | |
1900 | * Construct a encoder configuration structure to return to the user. | |
1901 | * | |
1902 | * Called by the user via ioctl. | |
1903 | * | |
1904 | * Returns: | |
1905 | * Zero on success, errno on failure. | |
1906 | */ | |
f453ba04 DA |
1907 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
1908 | struct drm_file *file_priv) | |
1909 | { | |
1910 | struct drm_mode_get_encoder *enc_resp = data; | |
1911 | struct drm_mode_object *obj; | |
1912 | struct drm_encoder *encoder; | |
1913 | int ret = 0; | |
1914 | ||
fb3b06c8 DA |
1915 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1916 | return -EINVAL; | |
1917 | ||
84849903 | 1918 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1919 | obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
1920 | DRM_MODE_OBJECT_ENCODER); | |
1921 | if (!obj) { | |
f27657f2 | 1922 | ret = -ENOENT; |
f453ba04 DA |
1923 | goto out; |
1924 | } | |
1925 | encoder = obj_to_encoder(obj); | |
1926 | ||
1927 | if (encoder->crtc) | |
1928 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1929 | else | |
1930 | enc_resp->crtc_id = 0; | |
1931 | enc_resp->encoder_type = encoder->encoder_type; | |
1932 | enc_resp->encoder_id = encoder->base.id; | |
1933 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1934 | enc_resp->possible_clones = encoder->possible_clones; | |
1935 | ||
1936 | out: | |
84849903 | 1937 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1938 | return ret; |
1939 | } | |
1940 | ||
8cf5c917 | 1941 | /** |
c8e32cc1 | 1942 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
1943 | * @dev: DRM device |
1944 | * @data: ioctl data | |
1945 | * @file_priv: DRM file info | |
1946 | * | |
c8e32cc1 DV |
1947 | * Construct a list of plane ids to return to the user. |
1948 | * | |
1949 | * Called by the user via ioctl. | |
1950 | * | |
1951 | * Returns: | |
1952 | * Zero on success, errno on failure. | |
8cf5c917 JB |
1953 | */ |
1954 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 1955 | struct drm_file *file_priv) |
8cf5c917 JB |
1956 | { |
1957 | struct drm_mode_get_plane_res *plane_resp = data; | |
1958 | struct drm_mode_config *config; | |
1959 | struct drm_plane *plane; | |
1960 | uint32_t __user *plane_ptr; | |
1961 | int copied = 0, ret = 0; | |
681e7ec7 | 1962 | unsigned num_planes; |
8cf5c917 JB |
1963 | |
1964 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1965 | return -EINVAL; | |
1966 | ||
84849903 | 1967 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1968 | config = &dev->mode_config; |
1969 | ||
681e7ec7 MR |
1970 | if (file_priv->universal_planes) |
1971 | num_planes = config->num_total_plane; | |
1972 | else | |
1973 | num_planes = config->num_overlay_plane; | |
1974 | ||
8cf5c917 JB |
1975 | /* |
1976 | * This ioctl is called twice, once to determine how much space is | |
1977 | * needed, and the 2nd time to fill it. | |
1978 | */ | |
681e7ec7 MR |
1979 | if (num_planes && |
1980 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 1981 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
1982 | |
1983 | list_for_each_entry(plane, &config->plane_list, head) { | |
681e7ec7 MR |
1984 | /* |
1985 | * Unless userspace set the 'universal planes' | |
1986 | * capability bit, only advertise overlays. | |
1987 | */ | |
1988 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
1989 | !file_priv->universal_planes) | |
e27dde3e MR |
1990 | continue; |
1991 | ||
8cf5c917 JB |
1992 | if (put_user(plane->base.id, plane_ptr + copied)) { |
1993 | ret = -EFAULT; | |
1994 | goto out; | |
1995 | } | |
1996 | copied++; | |
1997 | } | |
1998 | } | |
681e7ec7 | 1999 | plane_resp->count_planes = num_planes; |
8cf5c917 JB |
2000 | |
2001 | out: | |
84849903 | 2002 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2003 | return ret; |
2004 | } | |
2005 | ||
2006 | /** | |
c8e32cc1 | 2007 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2008 | * @dev: DRM device |
2009 | * @data: ioctl data | |
2010 | * @file_priv: DRM file info | |
2011 | * | |
c8e32cc1 DV |
2012 | * Construct a plane configuration structure to return to the user. |
2013 | * | |
2014 | * Called by the user via ioctl. | |
2015 | * | |
2016 | * Returns: | |
2017 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2018 | */ |
2019 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2020 | struct drm_file *file_priv) |
8cf5c917 JB |
2021 | { |
2022 | struct drm_mode_get_plane *plane_resp = data; | |
2023 | struct drm_mode_object *obj; | |
2024 | struct drm_plane *plane; | |
2025 | uint32_t __user *format_ptr; | |
2026 | int ret = 0; | |
2027 | ||
2028 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2029 | return -EINVAL; | |
2030 | ||
84849903 | 2031 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2032 | obj = drm_mode_object_find(dev, plane_resp->plane_id, |
2033 | DRM_MODE_OBJECT_PLANE); | |
2034 | if (!obj) { | |
2035 | ret = -ENOENT; | |
2036 | goto out; | |
2037 | } | |
2038 | plane = obj_to_plane(obj); | |
2039 | ||
2040 | if (plane->crtc) | |
2041 | plane_resp->crtc_id = plane->crtc->base.id; | |
2042 | else | |
2043 | plane_resp->crtc_id = 0; | |
2044 | ||
2045 | if (plane->fb) | |
2046 | plane_resp->fb_id = plane->fb->base.id; | |
2047 | else | |
2048 | plane_resp->fb_id = 0; | |
2049 | ||
2050 | plane_resp->plane_id = plane->base.id; | |
2051 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2052 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2053 | |
2054 | /* | |
2055 | * This ioctl is called twice, once to determine how much space is | |
2056 | * needed, and the 2nd time to fill it. | |
2057 | */ | |
2058 | if (plane->format_count && | |
2059 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2060 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2061 | if (copy_to_user(format_ptr, |
2062 | plane->format_types, | |
2063 | sizeof(uint32_t) * plane->format_count)) { | |
2064 | ret = -EFAULT; | |
2065 | goto out; | |
2066 | } | |
2067 | } | |
2068 | plane_resp->count_format_types = plane->format_count; | |
2069 | ||
2070 | out: | |
84849903 | 2071 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2072 | return ret; |
2073 | } | |
2074 | ||
2075 | /** | |
c8e32cc1 | 2076 | * drm_mode_setplane - configure a plane's configuration |
8cf5c917 JB |
2077 | * @dev: DRM device |
2078 | * @data: ioctl data* | |
065a50ed | 2079 | * @file_priv: DRM file info |
8cf5c917 | 2080 | * |
c8e32cc1 | 2081 | * Set plane configuration, including placement, fb, scaling, and other factors. |
8cf5c917 | 2082 | * Or pass a NULL fb to disable. |
c8e32cc1 DV |
2083 | * |
2084 | * Returns: | |
2085 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2086 | */ |
2087 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2088 | struct drm_file *file_priv) |
8cf5c917 JB |
2089 | { |
2090 | struct drm_mode_set_plane *plane_req = data; | |
2091 | struct drm_mode_object *obj; | |
2092 | struct drm_plane *plane; | |
2093 | struct drm_crtc *crtc; | |
6c2a7532 | 2094 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
8cf5c917 | 2095 | int ret = 0; |
42ef8789 | 2096 | unsigned int fb_width, fb_height; |
62443be6 | 2097 | int i; |
8cf5c917 JB |
2098 | |
2099 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2100 | return -EINVAL; | |
2101 | ||
8cf5c917 JB |
2102 | /* |
2103 | * First, find the plane, crtc, and fb objects. If not available, | |
2104 | * we don't bother to call the driver. | |
2105 | */ | |
2106 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
2107 | DRM_MODE_OBJECT_PLANE); | |
2108 | if (!obj) { | |
2109 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
2110 | plane_req->plane_id); | |
6c2a7532 | 2111 | return -ENOENT; |
8cf5c917 JB |
2112 | } |
2113 | plane = obj_to_plane(obj); | |
2114 | ||
2115 | /* No fb means shut it down */ | |
2116 | if (!plane_req->fb_id) { | |
6c2a7532 DV |
2117 | drm_modeset_lock_all(dev); |
2118 | old_fb = plane->fb; | |
8cf5c917 | 2119 | plane->funcs->disable_plane(plane); |
e5e3b44c VS |
2120 | plane->crtc = NULL; |
2121 | plane->fb = NULL; | |
6c2a7532 | 2122 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2123 | goto out; |
2124 | } | |
2125 | ||
2126 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
2127 | DRM_MODE_OBJECT_CRTC); | |
2128 | if (!obj) { | |
2129 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
2130 | plane_req->crtc_id); | |
2131 | ret = -ENOENT; | |
2132 | goto out; | |
2133 | } | |
2134 | crtc = obj_to_crtc(obj); | |
2135 | ||
786b99ed DV |
2136 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
2137 | if (!fb) { | |
8cf5c917 JB |
2138 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
2139 | plane_req->fb_id); | |
2140 | ret = -ENOENT; | |
2141 | goto out; | |
2142 | } | |
8cf5c917 | 2143 | |
62443be6 VS |
2144 | /* Check whether this plane supports the fb pixel format. */ |
2145 | for (i = 0; i < plane->format_count; i++) | |
2146 | if (fb->pixel_format == plane->format_types[i]) | |
2147 | break; | |
2148 | if (i == plane->format_count) { | |
6ba6d03e VS |
2149 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2150 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2151 | ret = -EINVAL; |
2152 | goto out; | |
2153 | } | |
2154 | ||
42ef8789 VS |
2155 | fb_width = fb->width << 16; |
2156 | fb_height = fb->height << 16; | |
2157 | ||
2158 | /* Make sure source coordinates are inside the fb. */ | |
2159 | if (plane_req->src_w > fb_width || | |
2160 | plane_req->src_x > fb_width - plane_req->src_w || | |
2161 | plane_req->src_h > fb_height || | |
2162 | plane_req->src_y > fb_height - plane_req->src_h) { | |
2163 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2164 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2165 | plane_req->src_w >> 16, | |
2166 | ((plane_req->src_w & 0xffff) * 15625) >> 10, | |
2167 | plane_req->src_h >> 16, | |
2168 | ((plane_req->src_h & 0xffff) * 15625) >> 10, | |
2169 | plane_req->src_x >> 16, | |
2170 | ((plane_req->src_x & 0xffff) * 15625) >> 10, | |
2171 | plane_req->src_y >> 16, | |
2172 | ((plane_req->src_y & 0xffff) * 15625) >> 10); | |
2173 | ret = -ENOSPC; | |
2174 | goto out; | |
2175 | } | |
2176 | ||
687a0400 VS |
2177 | /* Give drivers some help against integer overflows */ |
2178 | if (plane_req->crtc_w > INT_MAX || | |
2179 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2180 | plane_req->crtc_h > INT_MAX || | |
2181 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2182 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2183 | plane_req->crtc_w, plane_req->crtc_h, | |
2184 | plane_req->crtc_x, plane_req->crtc_y); | |
2185 | ret = -ERANGE; | |
2186 | goto out; | |
2187 | } | |
2188 | ||
6c2a7532 | 2189 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2190 | ret = plane->funcs->update_plane(plane, crtc, fb, |
2191 | plane_req->crtc_x, plane_req->crtc_y, | |
2192 | plane_req->crtc_w, plane_req->crtc_h, | |
2193 | plane_req->src_x, plane_req->src_y, | |
2194 | plane_req->src_w, plane_req->src_h); | |
2195 | if (!ret) { | |
6c2a7532 | 2196 | old_fb = plane->fb; |
8cf5c917 JB |
2197 | plane->crtc = crtc; |
2198 | plane->fb = fb; | |
35f8badc | 2199 | fb = NULL; |
8cf5c917 | 2200 | } |
6c2a7532 | 2201 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2202 | |
2203 | out: | |
6c2a7532 DV |
2204 | if (fb) |
2205 | drm_framebuffer_unreference(fb); | |
2206 | if (old_fb) | |
2207 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
2208 | |
2209 | return ret; | |
2210 | } | |
2211 | ||
2d13b679 DV |
2212 | /** |
2213 | * drm_mode_set_config_internal - helper to call ->set_config | |
2214 | * @set: modeset config to set | |
2215 | * | |
2216 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2217 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2218 | * |
2219 | * Returns: | |
2220 | * Zero on success, errno on failure. | |
2d13b679 DV |
2221 | */ |
2222 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2223 | { | |
2224 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2225 | struct drm_framebuffer *fb; |
2226 | struct drm_crtc *tmp; | |
b0d12325 DV |
2227 | int ret; |
2228 | ||
5cef29aa DV |
2229 | /* |
2230 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2231 | * connectors from it), hence we need to refcount the fbs across all | |
2232 | * crtcs. Atomic modeset will have saner semantics ... | |
2233 | */ | |
2234 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
f4510a27 | 2235 | tmp->old_fb = tmp->primary->fb; |
5cef29aa | 2236 | |
b0d12325 | 2237 | fb = set->fb; |
2d13b679 | 2238 | |
b0d12325 DV |
2239 | ret = crtc->funcs->set_config(set); |
2240 | if (ret == 0) { | |
e13161af MR |
2241 | crtc->primary->crtc = crtc; |
2242 | ||
cc85e121 | 2243 | /* crtc->fb must be updated by ->set_config, enforces this. */ |
f4510a27 | 2244 | WARN_ON(fb != crtc->primary->fb); |
5cef29aa | 2245 | } |
cc85e121 | 2246 | |
5cef29aa | 2247 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2248 | if (tmp->primary->fb) |
2249 | drm_framebuffer_reference(tmp->primary->fb); | |
5cef29aa DV |
2250 | if (tmp->old_fb) |
2251 | drm_framebuffer_unreference(tmp->old_fb); | |
b0d12325 DV |
2252 | } |
2253 | ||
2254 | return ret; | |
2d13b679 DV |
2255 | } |
2256 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2257 | ||
af93629d MR |
2258 | /** |
2259 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2260 | * CRTC viewport | |
2261 | * @crtc: CRTC that framebuffer will be displayed on | |
2262 | * @x: x panning | |
2263 | * @y: y panning | |
2264 | * @mode: mode that framebuffer will be displayed under | |
2265 | * @fb: framebuffer to check size of | |
c11e9283 | 2266 | */ |
af93629d MR |
2267 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2268 | int x, int y, | |
2269 | const struct drm_display_mode *mode, | |
2270 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2271 | |
2272 | { | |
2273 | int hdisplay, vdisplay; | |
2274 | ||
2275 | hdisplay = mode->hdisplay; | |
2276 | vdisplay = mode->vdisplay; | |
2277 | ||
a0c1bbb0 DL |
2278 | if (drm_mode_is_stereo(mode)) { |
2279 | struct drm_display_mode adjusted = *mode; | |
2280 | ||
2281 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2282 | hdisplay = adjusted.crtc_hdisplay; | |
2283 | vdisplay = adjusted.crtc_vdisplay; | |
2284 | } | |
2285 | ||
c11e9283 DL |
2286 | if (crtc->invert_dimensions) |
2287 | swap(hdisplay, vdisplay); | |
2288 | ||
2289 | if (hdisplay > fb->width || | |
2290 | vdisplay > fb->height || | |
2291 | x > fb->width - hdisplay || | |
2292 | y > fb->height - vdisplay) { | |
2293 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2294 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2295 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2296 | return -ENOSPC; | |
2297 | } | |
2298 | ||
2299 | return 0; | |
2300 | } | |
af93629d | 2301 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2302 | |
f453ba04 DA |
2303 | /** |
2304 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2305 | * @dev: drm device for the ioctl |
2306 | * @data: data pointer for the ioctl | |
2307 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2308 | * |
f453ba04 DA |
2309 | * Build a new CRTC configuration based on user request. |
2310 | * | |
2311 | * Called by the user via ioctl. | |
2312 | * | |
c8e32cc1 | 2313 | * Returns: |
f453ba04 DA |
2314 | * Zero on success, errno on failure. |
2315 | */ | |
2316 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2317 | struct drm_file *file_priv) | |
2318 | { | |
2319 | struct drm_mode_config *config = &dev->mode_config; | |
2320 | struct drm_mode_crtc *crtc_req = data; | |
2321 | struct drm_mode_object *obj; | |
6653cc8d | 2322 | struct drm_crtc *crtc; |
f453ba04 DA |
2323 | struct drm_connector **connector_set = NULL, *connector; |
2324 | struct drm_framebuffer *fb = NULL; | |
2325 | struct drm_display_mode *mode = NULL; | |
2326 | struct drm_mode_set set; | |
2327 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2328 | int ret; |
f453ba04 DA |
2329 | int i; |
2330 | ||
fb3b06c8 DA |
2331 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2332 | return -EINVAL; | |
2333 | ||
1d97e915 VS |
2334 | /* For some reason crtc x/y offsets are signed internally. */ |
2335 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2336 | return -ERANGE; | |
2337 | ||
84849903 | 2338 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2339 | obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
2340 | DRM_MODE_OBJECT_CRTC); | |
2341 | if (!obj) { | |
58367ed6 | 2342 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2343 | ret = -ENOENT; |
f453ba04 DA |
2344 | goto out; |
2345 | } | |
2346 | crtc = obj_to_crtc(obj); | |
9440106b | 2347 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2348 | |
2349 | if (crtc_req->mode_valid) { | |
2350 | /* If we have a mode we need a framebuffer. */ | |
2351 | /* If we pass -1, set the mode with the currently bound fb */ | |
2352 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2353 | if (!crtc->primary->fb) { |
6653cc8d VS |
2354 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2355 | ret = -EINVAL; | |
2356 | goto out; | |
f453ba04 | 2357 | } |
f4510a27 | 2358 | fb = crtc->primary->fb; |
b0d12325 DV |
2359 | /* Make refcounting symmetric with the lookup path. */ |
2360 | drm_framebuffer_reference(fb); | |
f453ba04 | 2361 | } else { |
786b99ed DV |
2362 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2363 | if (!fb) { | |
58367ed6 ZY |
2364 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2365 | crtc_req->fb_id); | |
37c4e705 | 2366 | ret = -ENOENT; |
f453ba04 DA |
2367 | goto out; |
2368 | } | |
f453ba04 DA |
2369 | } |
2370 | ||
2371 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2372 | if (!mode) { |
2373 | ret = -ENOMEM; | |
2374 | goto out; | |
2375 | } | |
2376 | ||
90367bf6 VS |
2377 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2378 | if (ret) { | |
2379 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2380 | goto out; | |
2381 | } | |
2382 | ||
f453ba04 | 2383 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2384 | |
c11e9283 DL |
2385 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2386 | mode, fb); | |
2387 | if (ret) | |
5f61bb42 | 2388 | goto out; |
c11e9283 | 2389 | |
f453ba04 DA |
2390 | } |
2391 | ||
2392 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2393 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2394 | ret = -EINVAL; |
2395 | goto out; | |
2396 | } | |
2397 | ||
7781de74 | 2398 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2399 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2400 | crtc_req->count_connectors); |
2401 | ret = -EINVAL; | |
2402 | goto out; | |
2403 | } | |
2404 | ||
2405 | if (crtc_req->count_connectors > 0) { | |
2406 | u32 out_id; | |
2407 | ||
2408 | /* Avoid unbounded kernel memory allocation */ | |
2409 | if (crtc_req->count_connectors > config->num_connector) { | |
2410 | ret = -EINVAL; | |
2411 | goto out; | |
2412 | } | |
2413 | ||
2414 | connector_set = kmalloc(crtc_req->count_connectors * | |
2415 | sizeof(struct drm_connector *), | |
2416 | GFP_KERNEL); | |
2417 | if (!connector_set) { | |
2418 | ret = -ENOMEM; | |
2419 | goto out; | |
2420 | } | |
2421 | ||
2422 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2423 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2424 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2425 | ret = -EFAULT; | |
2426 | goto out; | |
2427 | } | |
2428 | ||
2429 | obj = drm_mode_object_find(dev, out_id, | |
2430 | DRM_MODE_OBJECT_CONNECTOR); | |
2431 | if (!obj) { | |
58367ed6 ZY |
2432 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2433 | out_id); | |
f27657f2 | 2434 | ret = -ENOENT; |
f453ba04 DA |
2435 | goto out; |
2436 | } | |
2437 | connector = obj_to_connector(obj); | |
9440106b JG |
2438 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2439 | connector->base.id, | |
2440 | drm_get_connector_name(connector)); | |
f453ba04 DA |
2441 | |
2442 | connector_set[i] = connector; | |
2443 | } | |
2444 | } | |
2445 | ||
2446 | set.crtc = crtc; | |
2447 | set.x = crtc_req->x; | |
2448 | set.y = crtc_req->y; | |
2449 | set.mode = mode; | |
2450 | set.connectors = connector_set; | |
2451 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2452 | set.fb = fb; |
2d13b679 | 2453 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2454 | |
2455 | out: | |
b0d12325 DV |
2456 | if (fb) |
2457 | drm_framebuffer_unreference(fb); | |
2458 | ||
f453ba04 | 2459 | kfree(connector_set); |
ee34ab5b | 2460 | drm_mode_destroy(dev, mode); |
84849903 | 2461 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2462 | return ret; |
2463 | } | |
2464 | ||
4c813d4d DA |
2465 | static int drm_mode_cursor_common(struct drm_device *dev, |
2466 | struct drm_mode_cursor2 *req, | |
2467 | struct drm_file *file_priv) | |
f453ba04 | 2468 | { |
f453ba04 DA |
2469 | struct drm_mode_object *obj; |
2470 | struct drm_crtc *crtc; | |
2471 | int ret = 0; | |
2472 | ||
fb3b06c8 DA |
2473 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2474 | return -EINVAL; | |
2475 | ||
7c4eaca4 | 2476 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2477 | return -EINVAL; |
f453ba04 | 2478 | |
e0c8463a | 2479 | obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
f453ba04 | 2480 | if (!obj) { |
58367ed6 | 2481 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2482 | return -ENOENT; |
f453ba04 DA |
2483 | } |
2484 | crtc = obj_to_crtc(obj); | |
2485 | ||
dac35663 | 2486 | mutex_lock(&crtc->mutex); |
f453ba04 | 2487 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2488 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2489 | ret = -ENXIO; |
2490 | goto out; | |
2491 | } | |
2492 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2493 | if (crtc->funcs->cursor_set2) |
2494 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2495 | req->width, req->height, req->hot_x, req->hot_y); | |
2496 | else | |
2497 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2498 | req->width, req->height); | |
f453ba04 DA |
2499 | } |
2500 | ||
2501 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2502 | if (crtc->funcs->cursor_move) { | |
2503 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2504 | } else { | |
f453ba04 DA |
2505 | ret = -EFAULT; |
2506 | goto out; | |
2507 | } | |
2508 | } | |
2509 | out: | |
dac35663 DV |
2510 | mutex_unlock(&crtc->mutex); |
2511 | ||
f453ba04 | 2512 | return ret; |
4c813d4d DA |
2513 | |
2514 | } | |
c8e32cc1 DV |
2515 | |
2516 | ||
2517 | /** | |
2518 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2519 | * @dev: drm device for the ioctl | |
2520 | * @data: data pointer for the ioctl | |
2521 | * @file_priv: drm file for the ioctl call | |
2522 | * | |
2523 | * Set the cursor configuration based on user request. | |
2524 | * | |
2525 | * Called by the user via ioctl. | |
2526 | * | |
2527 | * Returns: | |
2528 | * Zero on success, errno on failure. | |
2529 | */ | |
4c813d4d | 2530 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2531 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2532 | { |
2533 | struct drm_mode_cursor *req = data; | |
2534 | struct drm_mode_cursor2 new_req; | |
2535 | ||
2536 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2537 | new_req.hot_x = new_req.hot_y = 0; | |
2538 | ||
2539 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2540 | } | |
2541 | ||
c8e32cc1 DV |
2542 | /** |
2543 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2544 | * @dev: drm device for the ioctl | |
2545 | * @data: data pointer for the ioctl | |
2546 | * @file_priv: drm file for the ioctl call | |
2547 | * | |
2548 | * Set the cursor configuration based on user request. This implements the 2nd | |
2549 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2550 | * the hotspot of the pointer. | |
2551 | * | |
2552 | * Called by the user via ioctl. | |
2553 | * | |
2554 | * Returns: | |
2555 | * Zero on success, errno on failure. | |
2556 | */ | |
4c813d4d DA |
2557 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2558 | void *data, struct drm_file *file_priv) | |
2559 | { | |
2560 | struct drm_mode_cursor2 *req = data; | |
2561 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2562 | } |
2563 | ||
c8e32cc1 DV |
2564 | /** |
2565 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2566 | * @bpp: bits per pixels | |
2567 | * @depth: bit depth per pixel | |
2568 | * | |
2569 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2570 | * Useful in fbdev emulation code, since that deals in those values. | |
2571 | */ | |
308e5bcb JB |
2572 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2573 | { | |
2574 | uint32_t fmt; | |
2575 | ||
2576 | switch (bpp) { | |
2577 | case 8: | |
d84f031b | 2578 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2579 | break; |
2580 | case 16: | |
2581 | if (depth == 15) | |
04b3924d | 2582 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2583 | else |
04b3924d | 2584 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2585 | break; |
2586 | case 24: | |
04b3924d | 2587 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2588 | break; |
2589 | case 32: | |
2590 | if (depth == 24) | |
04b3924d | 2591 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2592 | else if (depth == 30) |
04b3924d | 2593 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2594 | else |
04b3924d | 2595 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2596 | break; |
2597 | default: | |
04b3924d VS |
2598 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2599 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2600 | break; |
2601 | } | |
2602 | ||
2603 | return fmt; | |
2604 | } | |
2605 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2606 | ||
f453ba04 DA |
2607 | /** |
2608 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2609 | * @dev: drm device for the ioctl |
2610 | * @data: data pointer for the ioctl | |
2611 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2612 | * |
c8e32cc1 DV |
2613 | * Add a new FB to the specified CRTC, given a user request. This is the |
2614 | * original addfb ioclt which only supported RGB formats. | |
f453ba04 DA |
2615 | * |
2616 | * Called by the user via ioctl. | |
2617 | * | |
c8e32cc1 | 2618 | * Returns: |
f453ba04 DA |
2619 | * Zero on success, errno on failure. |
2620 | */ | |
2621 | int drm_mode_addfb(struct drm_device *dev, | |
2622 | void *data, struct drm_file *file_priv) | |
2623 | { | |
308e5bcb JB |
2624 | struct drm_mode_fb_cmd *or = data; |
2625 | struct drm_mode_fb_cmd2 r = {}; | |
2626 | struct drm_mode_config *config = &dev->mode_config; | |
2627 | struct drm_framebuffer *fb; | |
2628 | int ret = 0; | |
2629 | ||
2630 | /* Use new struct with format internally */ | |
2631 | r.fb_id = or->fb_id; | |
2632 | r.width = or->width; | |
2633 | r.height = or->height; | |
2634 | r.pitches[0] = or->pitch; | |
2635 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2636 | r.handles[0] = or->handle; | |
2637 | ||
2638 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2639 | return -EINVAL; | |
2640 | ||
acb4b992 | 2641 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2642 | return -EINVAL; |
acb4b992 JB |
2643 | |
2644 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2645 | return -EINVAL; |
308e5bcb | 2646 | |
308e5bcb JB |
2647 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2648 | if (IS_ERR(fb)) { | |
1aa1b11c | 2649 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2650 | return PTR_ERR(fb); |
308e5bcb JB |
2651 | } |
2652 | ||
4b096ac1 | 2653 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2654 | or->fb_id = fb->base.id; |
2655 | list_add(&fb->filp_head, &file_priv->fbs); | |
2656 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2657 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2658 | |
308e5bcb JB |
2659 | return ret; |
2660 | } | |
2661 | ||
cff91b62 | 2662 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2663 | { |
2664 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2665 | ||
2666 | switch (format) { | |
2667 | case DRM_FORMAT_C8: | |
2668 | case DRM_FORMAT_RGB332: | |
2669 | case DRM_FORMAT_BGR233: | |
2670 | case DRM_FORMAT_XRGB4444: | |
2671 | case DRM_FORMAT_XBGR4444: | |
2672 | case DRM_FORMAT_RGBX4444: | |
2673 | case DRM_FORMAT_BGRX4444: | |
2674 | case DRM_FORMAT_ARGB4444: | |
2675 | case DRM_FORMAT_ABGR4444: | |
2676 | case DRM_FORMAT_RGBA4444: | |
2677 | case DRM_FORMAT_BGRA4444: | |
2678 | case DRM_FORMAT_XRGB1555: | |
2679 | case DRM_FORMAT_XBGR1555: | |
2680 | case DRM_FORMAT_RGBX5551: | |
2681 | case DRM_FORMAT_BGRX5551: | |
2682 | case DRM_FORMAT_ARGB1555: | |
2683 | case DRM_FORMAT_ABGR1555: | |
2684 | case DRM_FORMAT_RGBA5551: | |
2685 | case DRM_FORMAT_BGRA5551: | |
2686 | case DRM_FORMAT_RGB565: | |
2687 | case DRM_FORMAT_BGR565: | |
2688 | case DRM_FORMAT_RGB888: | |
2689 | case DRM_FORMAT_BGR888: | |
2690 | case DRM_FORMAT_XRGB8888: | |
2691 | case DRM_FORMAT_XBGR8888: | |
2692 | case DRM_FORMAT_RGBX8888: | |
2693 | case DRM_FORMAT_BGRX8888: | |
2694 | case DRM_FORMAT_ARGB8888: | |
2695 | case DRM_FORMAT_ABGR8888: | |
2696 | case DRM_FORMAT_RGBA8888: | |
2697 | case DRM_FORMAT_BGRA8888: | |
2698 | case DRM_FORMAT_XRGB2101010: | |
2699 | case DRM_FORMAT_XBGR2101010: | |
2700 | case DRM_FORMAT_RGBX1010102: | |
2701 | case DRM_FORMAT_BGRX1010102: | |
2702 | case DRM_FORMAT_ARGB2101010: | |
2703 | case DRM_FORMAT_ABGR2101010: | |
2704 | case DRM_FORMAT_RGBA1010102: | |
2705 | case DRM_FORMAT_BGRA1010102: | |
2706 | case DRM_FORMAT_YUYV: | |
2707 | case DRM_FORMAT_YVYU: | |
2708 | case DRM_FORMAT_UYVY: | |
2709 | case DRM_FORMAT_VYUY: | |
2710 | case DRM_FORMAT_AYUV: | |
2711 | case DRM_FORMAT_NV12: | |
2712 | case DRM_FORMAT_NV21: | |
2713 | case DRM_FORMAT_NV16: | |
2714 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2715 | case DRM_FORMAT_NV24: |
2716 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2717 | case DRM_FORMAT_YUV410: |
2718 | case DRM_FORMAT_YVU410: | |
2719 | case DRM_FORMAT_YUV411: | |
2720 | case DRM_FORMAT_YVU411: | |
2721 | case DRM_FORMAT_YUV420: | |
2722 | case DRM_FORMAT_YVU420: | |
2723 | case DRM_FORMAT_YUV422: | |
2724 | case DRM_FORMAT_YVU422: | |
2725 | case DRM_FORMAT_YUV444: | |
2726 | case DRM_FORMAT_YVU444: | |
2727 | return 0; | |
2728 | default: | |
23c453a4 VS |
2729 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
2730 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
2731 | return -EINVAL; |
2732 | } | |
2733 | } | |
2734 | ||
cff91b62 | 2735 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2736 | { |
2737 | int ret, hsub, vsub, num_planes, i; | |
2738 | ||
2739 | ret = format_check(r); | |
2740 | if (ret) { | |
6ba6d03e VS |
2741 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
2742 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
2743 | return ret; |
2744 | } | |
2745 | ||
2746 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2747 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2748 | num_planes = drm_format_num_planes(r->pixel_format); | |
2749 | ||
2750 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2751 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2752 | return -EINVAL; |
2753 | } | |
2754 | ||
2755 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2756 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2757 | return -EINVAL; |
2758 | } | |
2759 | ||
2760 | for (i = 0; i < num_planes; i++) { | |
2761 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2762 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2763 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2764 | |
2765 | if (!r->handles[i]) { | |
1aa1b11c | 2766 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2767 | return -EINVAL; |
2768 | } | |
2769 | ||
b180b5d1 VS |
2770 | if ((uint64_t) width * cpp > UINT_MAX) |
2771 | return -ERANGE; | |
2772 | ||
2773 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2774 | return -ERANGE; | |
2775 | ||
2776 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2777 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2778 | return -EINVAL; |
2779 | } | |
2780 | } | |
2781 | ||
2782 | return 0; | |
2783 | } | |
2784 | ||
308e5bcb JB |
2785 | /** |
2786 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
065a50ed DV |
2787 | * @dev: drm device for the ioctl |
2788 | * @data: data pointer for the ioctl | |
2789 | * @file_priv: drm file for the ioctl call | |
308e5bcb | 2790 | * |
c8e32cc1 DV |
2791 | * Add a new FB to the specified CRTC, given a user request with format. This is |
2792 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
2793 | * and uses fourcc codes as pixel format specifiers. | |
308e5bcb JB |
2794 | * |
2795 | * Called by the user via ioctl. | |
2796 | * | |
c8e32cc1 | 2797 | * Returns: |
308e5bcb JB |
2798 | * Zero on success, errno on failure. |
2799 | */ | |
2800 | int drm_mode_addfb2(struct drm_device *dev, | |
2801 | void *data, struct drm_file *file_priv) | |
2802 | { | |
2803 | struct drm_mode_fb_cmd2 *r = data; | |
f453ba04 DA |
2804 | struct drm_mode_config *config = &dev->mode_config; |
2805 | struct drm_framebuffer *fb; | |
4a1b0714 | 2806 | int ret; |
f453ba04 | 2807 | |
fb3b06c8 DA |
2808 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2809 | return -EINVAL; | |
2810 | ||
e3cc3520 VS |
2811 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2812 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
2813 | return -EINVAL; | |
2814 | } | |
2815 | ||
f453ba04 | 2816 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2817 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2818 | r->width, config->min_width, config->max_width); |
f453ba04 DA |
2819 | return -EINVAL; |
2820 | } | |
2821 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2822 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2823 | r->height, config->min_height, config->max_height); |
f453ba04 DA |
2824 | return -EINVAL; |
2825 | } | |
2826 | ||
d1b45d5f VS |
2827 | ret = framebuffer_check(r); |
2828 | if (ret) | |
935b5977 | 2829 | return ret; |
935b5977 | 2830 | |
f453ba04 | 2831 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2832 | if (IS_ERR(fb)) { |
1aa1b11c | 2833 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2834 | return PTR_ERR(fb); |
f453ba04 DA |
2835 | } |
2836 | ||
4b096ac1 | 2837 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2838 | r->fb_id = fb->base.id; |
f453ba04 | 2839 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2840 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2841 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2842 | |
4b096ac1 | 2843 | |
f453ba04 DA |
2844 | return ret; |
2845 | } | |
2846 | ||
2847 | /** | |
2848 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2849 | * @dev: drm device for the ioctl |
2850 | * @data: data pointer for the ioctl | |
2851 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2852 | * |
f453ba04 DA |
2853 | * Remove the FB specified by the user. |
2854 | * | |
2855 | * Called by the user via ioctl. | |
2856 | * | |
c8e32cc1 | 2857 | * Returns: |
f453ba04 DA |
2858 | * Zero on success, errno on failure. |
2859 | */ | |
2860 | int drm_mode_rmfb(struct drm_device *dev, | |
2861 | void *data, struct drm_file *file_priv) | |
2862 | { | |
f453ba04 DA |
2863 | struct drm_framebuffer *fb = NULL; |
2864 | struct drm_framebuffer *fbl = NULL; | |
2865 | uint32_t *id = data; | |
f453ba04 DA |
2866 | int found = 0; |
2867 | ||
fb3b06c8 DA |
2868 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2869 | return -EINVAL; | |
2870 | ||
4b096ac1 | 2871 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2872 | mutex_lock(&dev->mode_config.fb_lock); |
2873 | fb = __drm_framebuffer_lookup(dev, *id); | |
2874 | if (!fb) | |
2875 | goto fail_lookup; | |
2876 | ||
f453ba04 DA |
2877 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2878 | if (fb == fbl) | |
2879 | found = 1; | |
2b677e8c DV |
2880 | if (!found) |
2881 | goto fail_lookup; | |
2882 | ||
2883 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2884 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2885 | |
4b096ac1 | 2886 | list_del_init(&fb->filp_head); |
2b677e8c | 2887 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2888 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2889 | |
4b096ac1 | 2890 | drm_framebuffer_remove(fb); |
4b096ac1 | 2891 | |
2b677e8c DV |
2892 | return 0; |
2893 | ||
2894 | fail_lookup: | |
2895 | mutex_unlock(&dev->mode_config.fb_lock); | |
2896 | mutex_unlock(&file_priv->fbs_lock); | |
2897 | ||
37c4e705 | 2898 | return -ENOENT; |
f453ba04 DA |
2899 | } |
2900 | ||
2901 | /** | |
2902 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2903 | * @dev: drm device for the ioctl |
2904 | * @data: data pointer for the ioctl | |
2905 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2906 | * |
f453ba04 DA |
2907 | * Lookup the FB given its ID and return info about it. |
2908 | * | |
2909 | * Called by the user via ioctl. | |
2910 | * | |
c8e32cc1 | 2911 | * Returns: |
f453ba04 DA |
2912 | * Zero on success, errno on failure. |
2913 | */ | |
2914 | int drm_mode_getfb(struct drm_device *dev, | |
2915 | void *data, struct drm_file *file_priv) | |
2916 | { | |
2917 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 2918 | struct drm_framebuffer *fb; |
58c0dca1 | 2919 | int ret; |
f453ba04 | 2920 | |
fb3b06c8 DA |
2921 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2922 | return -EINVAL; | |
2923 | ||
786b99ed | 2924 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 2925 | if (!fb) |
37c4e705 | 2926 | return -ENOENT; |
f453ba04 DA |
2927 | |
2928 | r->height = fb->height; | |
2929 | r->width = fb->width; | |
2930 | r->depth = fb->depth; | |
2931 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 2932 | r->pitch = fb->pitches[0]; |
101b96f3 | 2933 | if (fb->funcs->create_handle) { |
09f308f7 | 2934 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 2935 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
2936 | ret = fb->funcs->create_handle(fb, file_priv, |
2937 | &r->handle); | |
2938 | } else { | |
2939 | /* GET_FB() is an unprivileged ioctl so we must not | |
2940 | * return a buffer-handle to non-master processes! For | |
2941 | * backwards-compatibility reasons, we cannot make | |
2942 | * GET_FB() privileged, so just return an invalid handle | |
2943 | * for non-masters. */ | |
2944 | r->handle = 0; | |
2945 | ret = 0; | |
2946 | } | |
2947 | } else { | |
af26ef3b | 2948 | ret = -ENODEV; |
101b96f3 | 2949 | } |
f453ba04 | 2950 | |
58c0dca1 DV |
2951 | drm_framebuffer_unreference(fb); |
2952 | ||
f453ba04 DA |
2953 | return ret; |
2954 | } | |
2955 | ||
c8e32cc1 DV |
2956 | /** |
2957 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
2958 | * @dev: drm device for the ioctl | |
2959 | * @data: data pointer for the ioctl | |
2960 | * @file_priv: drm file for the ioctl call | |
2961 | * | |
2962 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
2963 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
2964 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
2965 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
2966 | * | |
2967 | * Modesetting drivers which always update the frontbuffer do not need to | |
2968 | * implement the corresponding ->dirty framebuffer callback. | |
2969 | * | |
2970 | * Called by the user via ioctl. | |
2971 | * | |
2972 | * Returns: | |
2973 | * Zero on success, errno on failure. | |
2974 | */ | |
884840aa JB |
2975 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
2976 | void *data, struct drm_file *file_priv) | |
2977 | { | |
2978 | struct drm_clip_rect __user *clips_ptr; | |
2979 | struct drm_clip_rect *clips = NULL; | |
2980 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
2981 | struct drm_framebuffer *fb; |
2982 | unsigned flags; | |
2983 | int num_clips; | |
4a1b0714 | 2984 | int ret; |
884840aa | 2985 | |
fb3b06c8 DA |
2986 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2987 | return -EINVAL; | |
2988 | ||
786b99ed | 2989 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 2990 | if (!fb) |
37c4e705 | 2991 | return -ENOENT; |
884840aa JB |
2992 | |
2993 | num_clips = r->num_clips; | |
81f6c7f8 | 2994 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
2995 | |
2996 | if (!num_clips != !clips_ptr) { | |
2997 | ret = -EINVAL; | |
2998 | goto out_err1; | |
2999 | } | |
3000 | ||
3001 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3002 | ||
3003 | /* If userspace annotates copy, clips must come in pairs */ | |
3004 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3005 | ret = -EINVAL; | |
3006 | goto out_err1; | |
3007 | } | |
3008 | ||
3009 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3010 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3011 | ret = -EINVAL; | |
3012 | goto out_err1; | |
3013 | } | |
884840aa JB |
3014 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3015 | if (!clips) { | |
3016 | ret = -ENOMEM; | |
3017 | goto out_err1; | |
3018 | } | |
3019 | ||
3020 | ret = copy_from_user(clips, clips_ptr, | |
3021 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3022 | if (ret) { |
3023 | ret = -EFAULT; | |
884840aa | 3024 | goto out_err2; |
e902a358 | 3025 | } |
884840aa JB |
3026 | } |
3027 | ||
3028 | if (fb->funcs->dirty) { | |
02b00162 TH |
3029 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3030 | clips, num_clips); | |
884840aa JB |
3031 | } else { |
3032 | ret = -ENOSYS; | |
884840aa JB |
3033 | } |
3034 | ||
3035 | out_err2: | |
3036 | kfree(clips); | |
3037 | out_err1: | |
4ccf097f DV |
3038 | drm_framebuffer_unreference(fb); |
3039 | ||
884840aa JB |
3040 | return ret; |
3041 | } | |
3042 | ||
3043 | ||
f453ba04 DA |
3044 | /** |
3045 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3046 | * @priv: drm file for the ioctl |
f453ba04 | 3047 | * |
f453ba04 DA |
3048 | * Destroy all the FBs associated with @filp. |
3049 | * | |
3050 | * Called by the user via ioctl. | |
3051 | * | |
c8e32cc1 | 3052 | * Returns: |
f453ba04 DA |
3053 | * Zero on success, errno on failure. |
3054 | */ | |
ea39f835 | 3055 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3056 | { |
f453ba04 DA |
3057 | struct drm_device *dev = priv->minor->dev; |
3058 | struct drm_framebuffer *fb, *tfb; | |
3059 | ||
4b096ac1 | 3060 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 3061 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3062 | |
3063 | mutex_lock(&dev->mode_config.fb_lock); | |
3064 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3065 | __drm_framebuffer_unregister(dev, fb); | |
3066 | mutex_unlock(&dev->mode_config.fb_lock); | |
3067 | ||
4b096ac1 | 3068 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3069 | |
3070 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3071 | drm_framebuffer_remove(fb); |
f453ba04 | 3072 | } |
4b096ac1 | 3073 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
3074 | } |
3075 | ||
c8e32cc1 DV |
3076 | /** |
3077 | * drm_property_create - create a new property type | |
3078 | * @dev: drm device | |
3079 | * @flags: flags specifying the property type | |
3080 | * @name: name of the property | |
3081 | * @num_values: number of pre-defined values | |
3082 | * | |
3083 | * This creates a new generic drm property which can then be attached to a drm | |
3084 | * object with drm_object_attach_property. The returned property object must be | |
3085 | * freed with drm_property_destroy. | |
3086 | * | |
3087 | * Returns: | |
3088 | * A pointer to the newly created property on success, NULL on failure. | |
3089 | */ | |
f453ba04 DA |
3090 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3091 | const char *name, int num_values) | |
3092 | { | |
3093 | struct drm_property *property = NULL; | |
6bfc56aa | 3094 | int ret; |
f453ba04 DA |
3095 | |
3096 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3097 | if (!property) | |
3098 | return NULL; | |
3099 | ||
3100 | if (num_values) { | |
3101 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3102 | if (!property->values) | |
3103 | goto fail; | |
3104 | } | |
3105 | ||
6bfc56aa VS |
3106 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3107 | if (ret) | |
3108 | goto fail; | |
3109 | ||
f453ba04 DA |
3110 | property->flags = flags; |
3111 | property->num_values = num_values; | |
3112 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3113 | ||
471dd2ef | 3114 | if (name) { |
f453ba04 | 3115 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3116 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3117 | } | |
f453ba04 DA |
3118 | |
3119 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
3120 | return property; | |
3121 | fail: | |
6bfc56aa | 3122 | kfree(property->values); |
f453ba04 DA |
3123 | kfree(property); |
3124 | return NULL; | |
3125 | } | |
3126 | EXPORT_SYMBOL(drm_property_create); | |
3127 | ||
c8e32cc1 DV |
3128 | /** |
3129 | * drm_property_create - create a new enumeration property type | |
3130 | * @dev: drm device | |
3131 | * @flags: flags specifying the property type | |
3132 | * @name: name of the property | |
3133 | * @props: enumeration lists with property values | |
3134 | * @num_values: number of pre-defined values | |
3135 | * | |
3136 | * This creates a new generic drm property which can then be attached to a drm | |
3137 | * object with drm_object_attach_property. The returned property object must be | |
3138 | * freed with drm_property_destroy. | |
3139 | * | |
3140 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3141 | * properties. | |
3142 | * | |
3143 | * Returns: | |
3144 | * A pointer to the newly created property on success, NULL on failure. | |
3145 | */ | |
4a67d391 SH |
3146 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3147 | const char *name, | |
3148 | const struct drm_prop_enum_list *props, | |
3149 | int num_values) | |
3150 | { | |
3151 | struct drm_property *property; | |
3152 | int i, ret; | |
3153 | ||
3154 | flags |= DRM_MODE_PROP_ENUM; | |
3155 | ||
3156 | property = drm_property_create(dev, flags, name, num_values); | |
3157 | if (!property) | |
3158 | return NULL; | |
3159 | ||
3160 | for (i = 0; i < num_values; i++) { | |
3161 | ret = drm_property_add_enum(property, i, | |
3162 | props[i].type, | |
3163 | props[i].name); | |
3164 | if (ret) { | |
3165 | drm_property_destroy(dev, property); | |
3166 | return NULL; | |
3167 | } | |
3168 | } | |
3169 | ||
3170 | return property; | |
3171 | } | |
3172 | EXPORT_SYMBOL(drm_property_create_enum); | |
3173 | ||
c8e32cc1 DV |
3174 | /** |
3175 | * drm_property_create - create a new bitmask property type | |
3176 | * @dev: drm device | |
3177 | * @flags: flags specifying the property type | |
3178 | * @name: name of the property | |
3179 | * @props: enumeration lists with property bitflags | |
3180 | * @num_values: number of pre-defined values | |
3181 | * | |
3182 | * This creates a new generic drm property which can then be attached to a drm | |
3183 | * object with drm_object_attach_property. The returned property object must be | |
3184 | * freed with drm_property_destroy. | |
3185 | * | |
3186 | * Compared to plain enumeration properties userspace is allowed to set any | |
3187 | * or'ed together combination of the predefined property bitflag values | |
3188 | * | |
3189 | * Returns: | |
3190 | * A pointer to the newly created property on success, NULL on failure. | |
3191 | */ | |
49e27545 RC |
3192 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3193 | int flags, const char *name, | |
3194 | const struct drm_prop_enum_list *props, | |
3195 | int num_values) | |
3196 | { | |
3197 | struct drm_property *property; | |
3198 | int i, ret; | |
3199 | ||
3200 | flags |= DRM_MODE_PROP_BITMASK; | |
3201 | ||
3202 | property = drm_property_create(dev, flags, name, num_values); | |
3203 | if (!property) | |
3204 | return NULL; | |
3205 | ||
3206 | for (i = 0; i < num_values; i++) { | |
3207 | ret = drm_property_add_enum(property, i, | |
3208 | props[i].type, | |
3209 | props[i].name); | |
3210 | if (ret) { | |
3211 | drm_property_destroy(dev, property); | |
3212 | return NULL; | |
3213 | } | |
3214 | } | |
3215 | ||
3216 | return property; | |
3217 | } | |
3218 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3219 | ||
c8e32cc1 DV |
3220 | /** |
3221 | * drm_property_create - create a new ranged property type | |
3222 | * @dev: drm device | |
3223 | * @flags: flags specifying the property type | |
3224 | * @name: name of the property | |
3225 | * @min: minimum value of the property | |
3226 | * @max: maximum value of the property | |
3227 | * | |
3228 | * This creates a new generic drm property which can then be attached to a drm | |
3229 | * object with drm_object_attach_property. The returned property object must be | |
3230 | * freed with drm_property_destroy. | |
3231 | * | |
3232 | * Userspace is allowed to set any interger value in the (min, max) range | |
3233 | * inclusive. | |
3234 | * | |
3235 | * Returns: | |
3236 | * A pointer to the newly created property on success, NULL on failure. | |
3237 | */ | |
d9bc3c02 SH |
3238 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3239 | const char *name, | |
3240 | uint64_t min, uint64_t max) | |
3241 | { | |
3242 | struct drm_property *property; | |
3243 | ||
3244 | flags |= DRM_MODE_PROP_RANGE; | |
3245 | ||
3246 | property = drm_property_create(dev, flags, name, 2); | |
3247 | if (!property) | |
3248 | return NULL; | |
3249 | ||
3250 | property->values[0] = min; | |
3251 | property->values[1] = max; | |
3252 | ||
3253 | return property; | |
3254 | } | |
3255 | EXPORT_SYMBOL(drm_property_create_range); | |
3256 | ||
c8e32cc1 DV |
3257 | /** |
3258 | * drm_property_add_enum - add a possible value to an enumeration property | |
3259 | * @property: enumeration property to change | |
3260 | * @index: index of the new enumeration | |
3261 | * @value: value of the new enumeration | |
3262 | * @name: symbolic name of the new enumeration | |
3263 | * | |
3264 | * This functions adds enumerations to a property. | |
3265 | * | |
3266 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3267 | * to directly create the property with all enumerations already attached. | |
3268 | * | |
3269 | * Returns: | |
3270 | * Zero on success, error code on failure. | |
3271 | */ | |
f453ba04 DA |
3272 | int drm_property_add_enum(struct drm_property *property, int index, |
3273 | uint64_t value, const char *name) | |
3274 | { | |
3275 | struct drm_property_enum *prop_enum; | |
3276 | ||
49e27545 RC |
3277 | if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) |
3278 | return -EINVAL; | |
3279 | ||
3280 | /* | |
3281 | * Bitmask enum properties have the additional constraint of values | |
3282 | * from 0 to 63 | |
3283 | */ | |
3284 | if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) | |
f453ba04 DA |
3285 | return -EINVAL; |
3286 | ||
3287 | if (!list_empty(&property->enum_blob_list)) { | |
3288 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3289 | if (prop_enum->value == value) { | |
3290 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3291 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3292 | return 0; | |
3293 | } | |
3294 | } | |
3295 | } | |
3296 | ||
3297 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3298 | if (!prop_enum) | |
3299 | return -ENOMEM; | |
3300 | ||
3301 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3302 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3303 | prop_enum->value = value; | |
3304 | ||
3305 | property->values[index] = value; | |
3306 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3307 | return 0; | |
3308 | } | |
3309 | EXPORT_SYMBOL(drm_property_add_enum); | |
3310 | ||
c8e32cc1 DV |
3311 | /** |
3312 | * drm_property_destroy - destroy a drm property | |
3313 | * @dev: drm device | |
3314 | * @property: property to destry | |
3315 | * | |
3316 | * This function frees a property including any attached resources like | |
3317 | * enumeration values. | |
3318 | */ | |
f453ba04 DA |
3319 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3320 | { | |
3321 | struct drm_property_enum *prop_enum, *pt; | |
3322 | ||
3323 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3324 | list_del(&prop_enum->head); | |
3325 | kfree(prop_enum); | |
3326 | } | |
3327 | ||
3328 | if (property->num_values) | |
3329 | kfree(property->values); | |
3330 | drm_mode_object_put(dev, &property->base); | |
3331 | list_del(&property->head); | |
3332 | kfree(property); | |
3333 | } | |
3334 | EXPORT_SYMBOL(drm_property_destroy); | |
3335 | ||
c8e32cc1 DV |
3336 | /** |
3337 | * drm_object_attach_property - attach a property to a modeset object | |
3338 | * @obj: drm modeset object | |
3339 | * @property: property to attach | |
3340 | * @init_val: initial value of the property | |
3341 | * | |
3342 | * This attaches the given property to the modeset object with the given initial | |
3343 | * value. Currently this function cannot fail since the properties are stored in | |
3344 | * a statically sized array. | |
3345 | */ | |
c543188a PZ |
3346 | void drm_object_attach_property(struct drm_mode_object *obj, |
3347 | struct drm_property *property, | |
3348 | uint64_t init_val) | |
3349 | { | |
7f88a9be | 3350 | int count = obj->properties->count; |
c543188a | 3351 | |
7f88a9be PZ |
3352 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3353 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3354 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3355 | "you see this message on the same object type.\n", | |
3356 | obj->type); | |
3357 | return; | |
c543188a PZ |
3358 | } |
3359 | ||
7f88a9be PZ |
3360 | obj->properties->ids[count] = property->base.id; |
3361 | obj->properties->values[count] = init_val; | |
3362 | obj->properties->count++; | |
c543188a PZ |
3363 | } |
3364 | EXPORT_SYMBOL(drm_object_attach_property); | |
3365 | ||
c8e32cc1 DV |
3366 | /** |
3367 | * drm_object_property_set_value - set the value of a property | |
3368 | * @obj: drm mode object to set property value for | |
3369 | * @property: property to set | |
3370 | * @val: value the property should be set to | |
3371 | * | |
3372 | * This functions sets a given property on a given object. This function only | |
3373 | * changes the software state of the property, it does not call into the | |
3374 | * driver's ->set_property callback. | |
3375 | * | |
3376 | * Returns: | |
3377 | * Zero on success, error code on failure. | |
3378 | */ | |
c543188a PZ |
3379 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3380 | struct drm_property *property, uint64_t val) | |
3381 | { | |
3382 | int i; | |
3383 | ||
7f88a9be | 3384 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3385 | if (obj->properties->ids[i] == property->base.id) { |
3386 | obj->properties->values[i] = val; | |
3387 | return 0; | |
3388 | } | |
3389 | } | |
3390 | ||
3391 | return -EINVAL; | |
3392 | } | |
3393 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3394 | ||
c8e32cc1 DV |
3395 | /** |
3396 | * drm_object_property_get_value - retrieve the value of a property | |
3397 | * @obj: drm mode object to get property value from | |
3398 | * @property: property to retrieve | |
3399 | * @val: storage for the property value | |
3400 | * | |
3401 | * This function retrieves the softare state of the given property for the given | |
3402 | * property. Since there is no driver callback to retrieve the current property | |
3403 | * value this might be out of sync with the hardware, depending upon the driver | |
3404 | * and property. | |
3405 | * | |
3406 | * Returns: | |
3407 | * Zero on success, error code on failure. | |
3408 | */ | |
c543188a PZ |
3409 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3410 | struct drm_property *property, uint64_t *val) | |
3411 | { | |
3412 | int i; | |
3413 | ||
7f88a9be | 3414 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3415 | if (obj->properties->ids[i] == property->base.id) { |
3416 | *val = obj->properties->values[i]; | |
3417 | return 0; | |
3418 | } | |
3419 | } | |
3420 | ||
3421 | return -EINVAL; | |
3422 | } | |
3423 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3424 | ||
c8e32cc1 DV |
3425 | /** |
3426 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3427 | * @dev: DRM device | |
3428 | * @data: ioctl data | |
3429 | * @file_priv: DRM file info | |
3430 | * | |
3431 | * This function retrieves the current value for an connectors's property. | |
3432 | * | |
3433 | * Called by the user via ioctl. | |
3434 | * | |
3435 | * Returns: | |
3436 | * Zero on success, errno on failure. | |
3437 | */ | |
f453ba04 DA |
3438 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3439 | void *data, struct drm_file *file_priv) | |
3440 | { | |
3441 | struct drm_mode_object *obj; | |
3442 | struct drm_mode_get_property *out_resp = data; | |
3443 | struct drm_property *property; | |
3444 | int enum_count = 0; | |
3445 | int blob_count = 0; | |
3446 | int value_count = 0; | |
3447 | int ret = 0, i; | |
3448 | int copied; | |
3449 | struct drm_property_enum *prop_enum; | |
3450 | struct drm_mode_property_enum __user *enum_ptr; | |
3451 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3452 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3453 | uint64_t __user *values_ptr; |
3454 | uint32_t __user *blob_length_ptr; | |
3455 | ||
fb3b06c8 DA |
3456 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3457 | return -EINVAL; | |
3458 | ||
84849903 | 3459 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3460 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
3461 | if (!obj) { | |
f27657f2 | 3462 | ret = -ENOENT; |
f453ba04 DA |
3463 | goto done; |
3464 | } | |
3465 | property = obj_to_property(obj); | |
3466 | ||
49e27545 | 3467 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3468 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3469 | enum_count++; | |
3470 | } else if (property->flags & DRM_MODE_PROP_BLOB) { | |
3471 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) | |
3472 | blob_count++; | |
3473 | } | |
3474 | ||
3475 | value_count = property->num_values; | |
3476 | ||
3477 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3478 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3479 | out_resp->flags = property->flags; | |
3480 | ||
3481 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3482 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3483 | for (i = 0; i < value_count; i++) { |
3484 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3485 | ret = -EFAULT; | |
3486 | goto done; | |
3487 | } | |
3488 | } | |
3489 | } | |
3490 | out_resp->count_values = value_count; | |
3491 | ||
49e27545 | 3492 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3493 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3494 | copied = 0; | |
81f6c7f8 | 3495 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3496 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3497 | ||
3498 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3499 | ret = -EFAULT; | |
3500 | goto done; | |
3501 | } | |
3502 | ||
3503 | if (copy_to_user(&enum_ptr[copied].name, | |
3504 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3505 | ret = -EFAULT; | |
3506 | goto done; | |
3507 | } | |
3508 | copied++; | |
3509 | } | |
3510 | } | |
3511 | out_resp->count_enum_blobs = enum_count; | |
3512 | } | |
3513 | ||
3514 | if (property->flags & DRM_MODE_PROP_BLOB) { | |
3515 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { | |
3516 | copied = 0; | |
81f6c7f8 VS |
3517 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3518 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3519 | |
3520 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3521 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3522 | ret = -EFAULT; | |
3523 | goto done; | |
3524 | } | |
3525 | ||
3526 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3527 | ret = -EFAULT; | |
3528 | goto done; | |
3529 | } | |
3530 | ||
3531 | copied++; | |
3532 | } | |
3533 | } | |
3534 | out_resp->count_enum_blobs = blob_count; | |
3535 | } | |
3536 | done: | |
84849903 | 3537 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3538 | return ret; |
3539 | } | |
3540 | ||
3541 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3542 | void *data) | |
3543 | { | |
3544 | struct drm_property_blob *blob; | |
6bfc56aa | 3545 | int ret; |
f453ba04 DA |
3546 | |
3547 | if (!length || !data) | |
3548 | return NULL; | |
3549 | ||
3550 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3551 | if (!blob) | |
3552 | return NULL; | |
3553 | ||
6bfc56aa VS |
3554 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3555 | if (ret) { | |
3556 | kfree(blob); | |
3557 | return NULL; | |
3558 | } | |
3559 | ||
f453ba04 DA |
3560 | blob->length = length; |
3561 | ||
3562 | memcpy(blob->data, data, length); | |
3563 | ||
f453ba04 DA |
3564 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3565 | return blob; | |
3566 | } | |
3567 | ||
3568 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3569 | struct drm_property_blob *blob) | |
3570 | { | |
3571 | drm_mode_object_put(dev, &blob->base); | |
3572 | list_del(&blob->head); | |
3573 | kfree(blob); | |
3574 | } | |
3575 | ||
c8e32cc1 DV |
3576 | /** |
3577 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3578 | * @dev: DRM device | |
3579 | * @data: ioctl data | |
3580 | * @file_priv: DRM file info | |
3581 | * | |
3582 | * This function retrieves the contents of a blob property. The value stored in | |
3583 | * an object's blob property is just a normal modeset object id. | |
3584 | * | |
3585 | * Called by the user via ioctl. | |
3586 | * | |
3587 | * Returns: | |
3588 | * Zero on success, errno on failure. | |
3589 | */ | |
f453ba04 DA |
3590 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3591 | void *data, struct drm_file *file_priv) | |
3592 | { | |
3593 | struct drm_mode_object *obj; | |
3594 | struct drm_mode_get_blob *out_resp = data; | |
3595 | struct drm_property_blob *blob; | |
3596 | int ret = 0; | |
81f6c7f8 | 3597 | void __user *blob_ptr; |
f453ba04 | 3598 | |
fb3b06c8 DA |
3599 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3600 | return -EINVAL; | |
3601 | ||
84849903 | 3602 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3603 | obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
3604 | if (!obj) { | |
f27657f2 | 3605 | ret = -ENOENT; |
f453ba04 DA |
3606 | goto done; |
3607 | } | |
3608 | blob = obj_to_blob(obj); | |
3609 | ||
3610 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3611 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3612 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3613 | ret = -EFAULT; | |
3614 | goto done; | |
3615 | } | |
3616 | } | |
3617 | out_resp->length = blob->length; | |
3618 | ||
3619 | done: | |
84849903 | 3620 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3621 | return ret; |
3622 | } | |
3623 | ||
c8e32cc1 DV |
3624 | /** |
3625 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
3626 | * @connector: drm connector | |
3627 | * @edid: new value of the edid property | |
3628 | * | |
3629 | * This function creates a new blob modeset object and assigns its id to the | |
3630 | * connector's edid property. | |
3631 | * | |
3632 | * Returns: | |
3633 | * Zero on success, errno on failure. | |
3634 | */ | |
f453ba04 DA |
3635 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
3636 | struct edid *edid) | |
3637 | { | |
3638 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3639 | int ret, size; |
f453ba04 DA |
3640 | |
3641 | if (connector->edid_blob_ptr) | |
3642 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3643 | ||
3644 | /* Delete edid, when there is none. */ | |
3645 | if (!edid) { | |
3646 | connector->edid_blob_ptr = NULL; | |
58495563 | 3647 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3648 | return ret; |
3649 | } | |
3650 | ||
7466f4cc AJ |
3651 | size = EDID_LENGTH * (1 + edid->extensions); |
3652 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3653 | size, edid); | |
e655d122 SK |
3654 | if (!connector->edid_blob_ptr) |
3655 | return -EINVAL; | |
f453ba04 | 3656 | |
58495563 | 3657 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3658 | dev->mode_config.edid_property, |
3659 | connector->edid_blob_ptr->base.id); | |
3660 | ||
3661 | return ret; | |
3662 | } | |
3663 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3664 | ||
26a34815 | 3665 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3666 | uint64_t value) |
26a34815 PZ |
3667 | { |
3668 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3669 | return false; | |
3670 | if (property->flags & DRM_MODE_PROP_RANGE) { | |
3671 | if (value < property->values[0] || value > property->values[1]) | |
3672 | return false; | |
3673 | return true; | |
49e27545 RC |
3674 | } else if (property->flags & DRM_MODE_PROP_BITMASK) { |
3675 | int i; | |
592c20ee | 3676 | uint64_t valid_mask = 0; |
49e27545 RC |
3677 | for (i = 0; i < property->num_values; i++) |
3678 | valid_mask |= (1ULL << property->values[i]); | |
3679 | return !(value & ~valid_mask); | |
c4a56750 VS |
3680 | } else if (property->flags & DRM_MODE_PROP_BLOB) { |
3681 | /* Only the driver knows */ | |
3682 | return true; | |
26a34815 PZ |
3683 | } else { |
3684 | int i; | |
3685 | for (i = 0; i < property->num_values; i++) | |
3686 | if (property->values[i] == value) | |
3687 | return true; | |
3688 | return false; | |
3689 | } | |
3690 | } | |
3691 | ||
c8e32cc1 DV |
3692 | /** |
3693 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
3694 | * @dev: DRM device | |
3695 | * @data: ioctl data | |
3696 | * @file_priv: DRM file info | |
3697 | * | |
3698 | * This function sets the current value for a connectors's property. It also | |
3699 | * calls into a driver's ->set_property callback to update the hardware state | |
3700 | * | |
3701 | * Called by the user via ioctl. | |
3702 | * | |
3703 | * Returns: | |
3704 | * Zero on success, errno on failure. | |
3705 | */ | |
f453ba04 DA |
3706 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3707 | void *data, struct drm_file *file_priv) | |
3708 | { | |
0057d8dd PZ |
3709 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3710 | struct drm_mode_obj_set_property obj_set_prop = { | |
3711 | .value = conn_set_prop->value, | |
3712 | .prop_id = conn_set_prop->prop_id, | |
3713 | .obj_id = conn_set_prop->connector_id, | |
3714 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3715 | }; | |
fb3b06c8 | 3716 | |
0057d8dd PZ |
3717 | /* It does all the locking and checking we need */ |
3718 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3719 | } |
3720 | ||
c543188a PZ |
3721 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3722 | struct drm_property *property, | |
3723 | uint64_t value) | |
3724 | { | |
3725 | int ret = -EINVAL; | |
3726 | struct drm_connector *connector = obj_to_connector(obj); | |
3727 | ||
3728 | /* Do DPMS ourselves */ | |
3729 | if (property == connector->dev->mode_config.dpms_property) { | |
3730 | if (connector->funcs->dpms) | |
3731 | (*connector->funcs->dpms)(connector, (int)value); | |
3732 | ret = 0; | |
3733 | } else if (connector->funcs->set_property) | |
3734 | ret = connector->funcs->set_property(connector, property, value); | |
3735 | ||
3736 | /* store the property value if successful */ | |
3737 | if (!ret) | |
58495563 | 3738 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3739 | return ret; |
3740 | } | |
3741 | ||
bffd9de0 PZ |
3742 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3743 | struct drm_property *property, | |
3744 | uint64_t value) | |
3745 | { | |
3746 | int ret = -EINVAL; | |
3747 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3748 | ||
3749 | if (crtc->funcs->set_property) | |
3750 | ret = crtc->funcs->set_property(crtc, property, value); | |
3751 | if (!ret) | |
3752 | drm_object_property_set_value(obj, property, value); | |
3753 | ||
3754 | return ret; | |
3755 | } | |
3756 | ||
4d93914a RC |
3757 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3758 | struct drm_property *property, | |
3759 | uint64_t value) | |
3760 | { | |
3761 | int ret = -EINVAL; | |
3762 | struct drm_plane *plane = obj_to_plane(obj); | |
3763 | ||
3764 | if (plane->funcs->set_property) | |
3765 | ret = plane->funcs->set_property(plane, property, value); | |
3766 | if (!ret) | |
3767 | drm_object_property_set_value(obj, property, value); | |
3768 | ||
3769 | return ret; | |
3770 | } | |
3771 | ||
c8e32cc1 DV |
3772 | /** |
3773 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
3774 | * @dev: DRM device | |
3775 | * @data: ioctl data | |
3776 | * @file_priv: DRM file info | |
3777 | * | |
3778 | * This function retrieves the current value for an object's property. Compared | |
3779 | * to the connector specific ioctl this one is extended to also work on crtc and | |
3780 | * plane objects. | |
3781 | * | |
3782 | * Called by the user via ioctl. | |
3783 | * | |
3784 | * Returns: | |
3785 | * Zero on success, errno on failure. | |
3786 | */ | |
c543188a PZ |
3787 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3788 | struct drm_file *file_priv) | |
3789 | { | |
3790 | struct drm_mode_obj_get_properties *arg = data; | |
3791 | struct drm_mode_object *obj; | |
3792 | int ret = 0; | |
3793 | int i; | |
3794 | int copied = 0; | |
3795 | int props_count = 0; | |
3796 | uint32_t __user *props_ptr; | |
3797 | uint64_t __user *prop_values_ptr; | |
3798 | ||
3799 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3800 | return -EINVAL; | |
3801 | ||
84849903 | 3802 | drm_modeset_lock_all(dev); |
c543188a PZ |
3803 | |
3804 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3805 | if (!obj) { | |
f27657f2 | 3806 | ret = -ENOENT; |
c543188a PZ |
3807 | goto out; |
3808 | } | |
3809 | if (!obj->properties) { | |
3810 | ret = -EINVAL; | |
3811 | goto out; | |
3812 | } | |
3813 | ||
7f88a9be | 3814 | props_count = obj->properties->count; |
c543188a PZ |
3815 | |
3816 | /* This ioctl is called twice, once to determine how much space is | |
3817 | * needed, and the 2nd time to fill it. */ | |
3818 | if ((arg->count_props >= props_count) && props_count) { | |
3819 | copied = 0; | |
3820 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3821 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3822 | (arg->prop_values_ptr); | |
3823 | for (i = 0; i < props_count; i++) { | |
3824 | if (put_user(obj->properties->ids[i], | |
3825 | props_ptr + copied)) { | |
3826 | ret = -EFAULT; | |
3827 | goto out; | |
3828 | } | |
3829 | if (put_user(obj->properties->values[i], | |
3830 | prop_values_ptr + copied)) { | |
3831 | ret = -EFAULT; | |
3832 | goto out; | |
3833 | } | |
3834 | copied++; | |
3835 | } | |
3836 | } | |
3837 | arg->count_props = props_count; | |
3838 | out: | |
84849903 | 3839 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3840 | return ret; |
3841 | } | |
3842 | ||
c8e32cc1 DV |
3843 | /** |
3844 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
3845 | * @dev: DRM device | |
3846 | * @data: ioctl data | |
3847 | * @file_priv: DRM file info | |
3848 | * | |
3849 | * This function sets the current value for an object's property. It also calls | |
3850 | * into a driver's ->set_property callback to update the hardware state. | |
3851 | * Compared to the connector specific ioctl this one is extended to also work on | |
3852 | * crtc and plane objects. | |
3853 | * | |
3854 | * Called by the user via ioctl. | |
3855 | * | |
3856 | * Returns: | |
3857 | * Zero on success, errno on failure. | |
3858 | */ | |
c543188a PZ |
3859 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
3860 | struct drm_file *file_priv) | |
3861 | { | |
3862 | struct drm_mode_obj_set_property *arg = data; | |
3863 | struct drm_mode_object *arg_obj; | |
3864 | struct drm_mode_object *prop_obj; | |
3865 | struct drm_property *property; | |
3866 | int ret = -EINVAL; | |
3867 | int i; | |
3868 | ||
3869 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3870 | return -EINVAL; | |
3871 | ||
84849903 | 3872 | drm_modeset_lock_all(dev); |
c543188a PZ |
3873 | |
3874 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
3875 | if (!arg_obj) { |
3876 | ret = -ENOENT; | |
c543188a | 3877 | goto out; |
f27657f2 | 3878 | } |
c543188a PZ |
3879 | if (!arg_obj->properties) |
3880 | goto out; | |
3881 | ||
7f88a9be | 3882 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
3883 | if (arg_obj->properties->ids[i] == arg->prop_id) |
3884 | break; | |
3885 | ||
7f88a9be | 3886 | if (i == arg_obj->properties->count) |
c543188a PZ |
3887 | goto out; |
3888 | ||
3889 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
3890 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
3891 | if (!prop_obj) { |
3892 | ret = -ENOENT; | |
c543188a | 3893 | goto out; |
f27657f2 | 3894 | } |
c543188a PZ |
3895 | property = obj_to_property(prop_obj); |
3896 | ||
3897 | if (!drm_property_change_is_valid(property, arg->value)) | |
3898 | goto out; | |
3899 | ||
3900 | switch (arg_obj->type) { | |
3901 | case DRM_MODE_OBJECT_CONNECTOR: | |
3902 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
3903 | arg->value); | |
3904 | break; | |
bffd9de0 PZ |
3905 | case DRM_MODE_OBJECT_CRTC: |
3906 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
3907 | break; | |
4d93914a RC |
3908 | case DRM_MODE_OBJECT_PLANE: |
3909 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
3910 | break; | |
c543188a PZ |
3911 | } |
3912 | ||
3913 | out: | |
84849903 | 3914 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3915 | return ret; |
3916 | } | |
3917 | ||
c8e32cc1 DV |
3918 | /** |
3919 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
3920 | * @connector: connector to attach | |
3921 | * @encoder: encoder to attach @connector to | |
3922 | * | |
3923 | * This function links up a connector to an encoder. Note that the routing | |
3924 | * restrictions between encoders and crtcs are exposed to userspace through the | |
3925 | * possible_clones and possible_crtcs bitmasks. | |
3926 | * | |
3927 | * Returns: | |
3928 | * Zero on success, errno on failure. | |
3929 | */ | |
f453ba04 DA |
3930 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
3931 | struct drm_encoder *encoder) | |
3932 | { | |
3933 | int i; | |
3934 | ||
3935 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3936 | if (connector->encoder_ids[i] == 0) { | |
3937 | connector->encoder_ids[i] = encoder->base.id; | |
3938 | return 0; | |
3939 | } | |
3940 | } | |
3941 | return -ENOMEM; | |
3942 | } | |
3943 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
3944 | ||
c8e32cc1 DV |
3945 | /** |
3946 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
3947 | * @crtc: CRTC to set the gamma table size for | |
3948 | * @gamma_size: size of the gamma table | |
3949 | * | |
3950 | * Drivers which support gamma tables should set this to the supported gamma | |
3951 | * table size when initializing the CRTC. Currently the drm core only supports a | |
3952 | * fixed gamma table size. | |
3953 | * | |
3954 | * Returns: | |
3955 | * Zero on success, errno on failure. | |
3956 | */ | |
4cae5b84 | 3957 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 3958 | int gamma_size) |
f453ba04 DA |
3959 | { |
3960 | crtc->gamma_size = gamma_size; | |
3961 | ||
3962 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
3963 | if (!crtc->gamma_store) { | |
3964 | crtc->gamma_size = 0; | |
4cae5b84 | 3965 | return -ENOMEM; |
f453ba04 DA |
3966 | } |
3967 | ||
4cae5b84 | 3968 | return 0; |
f453ba04 DA |
3969 | } |
3970 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
3971 | ||
c8e32cc1 DV |
3972 | /** |
3973 | * drm_mode_gamma_set_ioctl - set the gamma table | |
3974 | * @dev: DRM device | |
3975 | * @data: ioctl data | |
3976 | * @file_priv: DRM file info | |
3977 | * | |
3978 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
3979 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
3980 | * | |
3981 | * Called by the user via ioctl. | |
3982 | * | |
3983 | * Returns: | |
3984 | * Zero on success, errno on failure. | |
3985 | */ | |
f453ba04 DA |
3986 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
3987 | void *data, struct drm_file *file_priv) | |
3988 | { | |
3989 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3990 | struct drm_mode_object *obj; | |
3991 | struct drm_crtc *crtc; | |
3992 | void *r_base, *g_base, *b_base; | |
3993 | int size; | |
3994 | int ret = 0; | |
3995 | ||
fb3b06c8 DA |
3996 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3997 | return -EINVAL; | |
3998 | ||
84849903 | 3999 | drm_modeset_lock_all(dev); |
f453ba04 DA |
4000 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
4001 | if (!obj) { | |
f27657f2 | 4002 | ret = -ENOENT; |
f453ba04 DA |
4003 | goto out; |
4004 | } | |
4005 | crtc = obj_to_crtc(obj); | |
4006 | ||
ebe0f244 LP |
4007 | if (crtc->funcs->gamma_set == NULL) { |
4008 | ret = -ENOSYS; | |
4009 | goto out; | |
4010 | } | |
4011 | ||
f453ba04 DA |
4012 | /* memcpy into gamma store */ |
4013 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4014 | ret = -EINVAL; | |
4015 | goto out; | |
4016 | } | |
4017 | ||
4018 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4019 | r_base = crtc->gamma_store; | |
4020 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4021 | ret = -EFAULT; | |
4022 | goto out; | |
4023 | } | |
4024 | ||
4025 | g_base = r_base + size; | |
4026 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4027 | ret = -EFAULT; | |
4028 | goto out; | |
4029 | } | |
4030 | ||
4031 | b_base = g_base + size; | |
4032 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4033 | ret = -EFAULT; | |
4034 | goto out; | |
4035 | } | |
4036 | ||
7203425a | 4037 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4038 | |
4039 | out: | |
84849903 | 4040 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4041 | return ret; |
4042 | ||
4043 | } | |
4044 | ||
c8e32cc1 DV |
4045 | /** |
4046 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4047 | * @dev: DRM device | |
4048 | * @data: ioctl data | |
4049 | * @file_priv: DRM file info | |
4050 | * | |
4051 | * Copy the current gamma table into the storage provided. This also provides | |
4052 | * the gamma table size the driver expects, which can be used to size the | |
4053 | * allocated storage. | |
4054 | * | |
4055 | * Called by the user via ioctl. | |
4056 | * | |
4057 | * Returns: | |
4058 | * Zero on success, errno on failure. | |
4059 | */ | |
f453ba04 DA |
4060 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4061 | void *data, struct drm_file *file_priv) | |
4062 | { | |
4063 | struct drm_mode_crtc_lut *crtc_lut = data; | |
4064 | struct drm_mode_object *obj; | |
4065 | struct drm_crtc *crtc; | |
4066 | void *r_base, *g_base, *b_base; | |
4067 | int size; | |
4068 | int ret = 0; | |
4069 | ||
fb3b06c8 DA |
4070 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4071 | return -EINVAL; | |
4072 | ||
84849903 | 4073 | drm_modeset_lock_all(dev); |
f453ba04 DA |
4074 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
4075 | if (!obj) { | |
f27657f2 | 4076 | ret = -ENOENT; |
f453ba04 DA |
4077 | goto out; |
4078 | } | |
4079 | crtc = obj_to_crtc(obj); | |
4080 | ||
4081 | /* memcpy into gamma store */ | |
4082 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4083 | ret = -EINVAL; | |
4084 | goto out; | |
4085 | } | |
4086 | ||
4087 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4088 | r_base = crtc->gamma_store; | |
4089 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4090 | ret = -EFAULT; | |
4091 | goto out; | |
4092 | } | |
4093 | ||
4094 | g_base = r_base + size; | |
4095 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4096 | ret = -EFAULT; | |
4097 | goto out; | |
4098 | } | |
4099 | ||
4100 | b_base = g_base + size; | |
4101 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4102 | ret = -EFAULT; | |
4103 | goto out; | |
4104 | } | |
4105 | out: | |
84849903 | 4106 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4107 | return ret; |
4108 | } | |
d91d8a3f | 4109 | |
c8e32cc1 DV |
4110 | /** |
4111 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4112 | * @dev: DRM device | |
4113 | * @data: ioctl data | |
4114 | * @file_priv: DRM file info | |
4115 | * | |
4116 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4117 | * Optionally a drm event is generated to signal the completion of the event. | |
4118 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4119 | * properties (including driver specific metadata like tiling layout) will work, | |
4120 | * but some drivers support e.g. pixel format changes through the pageflip | |
4121 | * ioctl. | |
4122 | * | |
4123 | * Called by the user via ioctl. | |
4124 | * | |
4125 | * Returns: | |
4126 | * Zero on success, errno on failure. | |
4127 | */ | |
d91d8a3f KH |
4128 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4129 | void *data, struct drm_file *file_priv) | |
4130 | { | |
4131 | struct drm_mode_crtc_page_flip *page_flip = data; | |
4132 | struct drm_mode_object *obj; | |
4133 | struct drm_crtc *crtc; | |
b0d12325 | 4134 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
4135 | struct drm_pending_vblank_event *e = NULL; |
4136 | unsigned long flags; | |
4137 | int ret = -EINVAL; | |
4138 | ||
4139 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4140 | page_flip->reserved != 0) | |
4141 | return -EINVAL; | |
4142 | ||
62f2104f KP |
4143 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4144 | return -EINVAL; | |
4145 | ||
d91d8a3f KH |
4146 | obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); |
4147 | if (!obj) | |
f27657f2 | 4148 | return -ENOENT; |
d91d8a3f KH |
4149 | crtc = obj_to_crtc(obj); |
4150 | ||
b4d5e7d1 | 4151 | mutex_lock(&crtc->mutex); |
f4510a27 | 4152 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4153 | /* The framebuffer is currently unbound, presumably |
4154 | * due to a hotplug event, that userspace has not | |
4155 | * yet discovered. | |
4156 | */ | |
4157 | ret = -EBUSY; | |
4158 | goto out; | |
4159 | } | |
4160 | ||
d91d8a3f KH |
4161 | if (crtc->funcs->page_flip == NULL) |
4162 | goto out; | |
4163 | ||
786b99ed | 4164 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4165 | if (!fb) { |
4166 | ret = -ENOENT; | |
d91d8a3f | 4167 | goto out; |
37c4e705 | 4168 | } |
d91d8a3f | 4169 | |
c11e9283 DL |
4170 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4171 | if (ret) | |
5f61bb42 | 4172 | goto out; |
5f61bb42 | 4173 | |
f4510a27 | 4174 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4175 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4176 | ret = -EINVAL; | |
4177 | goto out; | |
4178 | } | |
4179 | ||
d91d8a3f KH |
4180 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4181 | ret = -ENOMEM; | |
4182 | spin_lock_irqsave(&dev->event_lock, flags); | |
4183 | if (file_priv->event_space < sizeof e->event) { | |
4184 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4185 | goto out; | |
4186 | } | |
4187 | file_priv->event_space -= sizeof e->event; | |
4188 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4189 | ||
4190 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4191 | if (e == NULL) { | |
4192 | spin_lock_irqsave(&dev->event_lock, flags); | |
4193 | file_priv->event_space += sizeof e->event; | |
4194 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4195 | goto out; | |
4196 | } | |
4197 | ||
7bd4d7be | 4198 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4199 | e->event.base.length = sizeof e->event; |
4200 | e->event.user_data = page_flip->user_data; | |
4201 | e->base.event = &e->event.base; | |
4202 | e->base.file_priv = file_priv; | |
4203 | e->base.destroy = | |
4204 | (void (*) (struct drm_pending_event *)) kfree; | |
4205 | } | |
4206 | ||
f4510a27 | 4207 | old_fb = crtc->primary->fb; |
ed8d1975 | 4208 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4209 | if (ret) { |
aef6a7ee JS |
4210 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4211 | spin_lock_irqsave(&dev->event_lock, flags); | |
4212 | file_priv->event_space += sizeof e->event; | |
4213 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4214 | kfree(e); | |
4215 | } | |
b0d12325 DV |
4216 | /* Keep the old fb, don't unref it. */ |
4217 | old_fb = NULL; | |
4218 | } else { | |
8cf1e981 TR |
4219 | /* |
4220 | * Warn if the driver hasn't properly updated the crtc->fb | |
4221 | * field to reflect that the new framebuffer is now used. | |
4222 | * Failing to do so will screw with the reference counting | |
4223 | * on framebuffers. | |
4224 | */ | |
f4510a27 | 4225 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4226 | /* Unref only the old framebuffer. */ |
4227 | fb = NULL; | |
d91d8a3f KH |
4228 | } |
4229 | ||
4230 | out: | |
b0d12325 DV |
4231 | if (fb) |
4232 | drm_framebuffer_unreference(fb); | |
4233 | if (old_fb) | |
4234 | drm_framebuffer_unreference(old_fb); | |
b4d5e7d1 DV |
4235 | mutex_unlock(&crtc->mutex); |
4236 | ||
d91d8a3f KH |
4237 | return ret; |
4238 | } | |
eb033556 | 4239 | |
c8e32cc1 DV |
4240 | /** |
4241 | * drm_mode_config_reset - call ->reset callbacks | |
4242 | * @dev: drm device | |
4243 | * | |
4244 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4245 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4246 | * reset hardware and software state. | |
4247 | */ | |
eb033556 CW |
4248 | void drm_mode_config_reset(struct drm_device *dev) |
4249 | { | |
4250 | struct drm_crtc *crtc; | |
4251 | struct drm_encoder *encoder; | |
4252 | struct drm_connector *connector; | |
4253 | ||
4254 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
4255 | if (crtc->funcs->reset) | |
4256 | crtc->funcs->reset(crtc); | |
4257 | ||
4258 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4259 | if (encoder->funcs->reset) | |
4260 | encoder->funcs->reset(encoder); | |
4261 | ||
5e2cb2f6 DV |
4262 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4263 | connector->status = connector_status_unknown; | |
4264 | ||
eb033556 CW |
4265 | if (connector->funcs->reset) |
4266 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4267 | } |
eb033556 CW |
4268 | } |
4269 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4270 | |
c8e32cc1 DV |
4271 | /** |
4272 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4273 | * @dev: DRM device | |
4274 | * @data: ioctl data | |
4275 | * @file_priv: DRM file info | |
4276 | * | |
4277 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4278 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4279 | * handle can then be wrapped up into a framebuffer modeset object. | |
4280 | * | |
4281 | * Note that userspace is not allowed to use such objects for render | |
4282 | * acceleration - drivers must create their own private ioctls for such a use | |
4283 | * case. | |
4284 | * | |
4285 | * Called by the user via ioctl. | |
4286 | * | |
4287 | * Returns: | |
4288 | * Zero on success, errno on failure. | |
4289 | */ | |
ff72145b DA |
4290 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4291 | void *data, struct drm_file *file_priv) | |
4292 | { | |
4293 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4294 | u32 cpp, stride, size; |
ff72145b DA |
4295 | |
4296 | if (!dev->driver->dumb_create) | |
4297 | return -ENOSYS; | |
b28cd41f DH |
4298 | if (!args->width || !args->height || !args->bpp) |
4299 | return -EINVAL; | |
4300 | ||
4301 | /* overflow checks for 32bit size calculations */ | |
4302 | cpp = DIV_ROUND_UP(args->bpp, 8); | |
4303 | if (cpp > 0xffffffffU / args->width) | |
4304 | return -EINVAL; | |
4305 | stride = cpp * args->width; | |
4306 | if (args->height > 0xffffffffU / stride) | |
4307 | return -EINVAL; | |
4308 | ||
4309 | /* test for wrap-around */ | |
4310 | size = args->height * stride; | |
4311 | if (PAGE_ALIGN(size) == 0) | |
4312 | return -EINVAL; | |
4313 | ||
ff72145b DA |
4314 | return dev->driver->dumb_create(file_priv, dev, args); |
4315 | } | |
4316 | ||
c8e32cc1 DV |
4317 | /** |
4318 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4319 | * @dev: DRM device | |
4320 | * @data: ioctl data | |
4321 | * @file_priv: DRM file info | |
4322 | * | |
4323 | * Allocate an offset in the drm device node's address space to be able to | |
4324 | * memory map a dumb buffer. | |
4325 | * | |
4326 | * Called by the user via ioctl. | |
4327 | * | |
4328 | * Returns: | |
4329 | * Zero on success, errno on failure. | |
4330 | */ | |
ff72145b DA |
4331 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4332 | void *data, struct drm_file *file_priv) | |
4333 | { | |
4334 | struct drm_mode_map_dumb *args = data; | |
4335 | ||
4336 | /* call driver ioctl to get mmap offset */ | |
4337 | if (!dev->driver->dumb_map_offset) | |
4338 | return -ENOSYS; | |
4339 | ||
4340 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4341 | } | |
4342 | ||
c8e32cc1 DV |
4343 | /** |
4344 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4345 | * @dev: DRM device | |
4346 | * @data: ioctl data | |
4347 | * @file_priv: DRM file info | |
4348 | * | |
4349 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4350 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4351 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4352 | * | |
4353 | * Called by the user via ioctl. | |
4354 | * | |
4355 | * Returns: | |
4356 | * Zero on success, errno on failure. | |
4357 | */ | |
ff72145b DA |
4358 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4359 | void *data, struct drm_file *file_priv) | |
4360 | { | |
4361 | struct drm_mode_destroy_dumb *args = data; | |
4362 | ||
4363 | if (!dev->driver->dumb_destroy) | |
4364 | return -ENOSYS; | |
4365 | ||
4366 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4367 | } | |
248dbc23 | 4368 | |
c8e32cc1 DV |
4369 | /** |
4370 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4371 | * @format: pixel format (DRM_FORMAT_*) | |
4372 | * @depth: storage for the depth value | |
4373 | * @bpp: storage for the bpp value | |
4374 | * | |
4375 | * This only supports RGB formats here for compat with code that doesn't use | |
4376 | * pixel formats directly yet. | |
248dbc23 DA |
4377 | */ |
4378 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4379 | int *bpp) | |
4380 | { | |
4381 | switch (format) { | |
c51a6bc5 | 4382 | case DRM_FORMAT_C8: |
04b3924d VS |
4383 | case DRM_FORMAT_RGB332: |
4384 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4385 | *depth = 8; |
4386 | *bpp = 8; | |
4387 | break; | |
04b3924d VS |
4388 | case DRM_FORMAT_XRGB1555: |
4389 | case DRM_FORMAT_XBGR1555: | |
4390 | case DRM_FORMAT_RGBX5551: | |
4391 | case DRM_FORMAT_BGRX5551: | |
4392 | case DRM_FORMAT_ARGB1555: | |
4393 | case DRM_FORMAT_ABGR1555: | |
4394 | case DRM_FORMAT_RGBA5551: | |
4395 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4396 | *depth = 15; |
4397 | *bpp = 16; | |
4398 | break; | |
04b3924d VS |
4399 | case DRM_FORMAT_RGB565: |
4400 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4401 | *depth = 16; |
4402 | *bpp = 16; | |
4403 | break; | |
04b3924d VS |
4404 | case DRM_FORMAT_RGB888: |
4405 | case DRM_FORMAT_BGR888: | |
4406 | *depth = 24; | |
4407 | *bpp = 24; | |
4408 | break; | |
4409 | case DRM_FORMAT_XRGB8888: | |
4410 | case DRM_FORMAT_XBGR8888: | |
4411 | case DRM_FORMAT_RGBX8888: | |
4412 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4413 | *depth = 24; |
4414 | *bpp = 32; | |
4415 | break; | |
04b3924d VS |
4416 | case DRM_FORMAT_XRGB2101010: |
4417 | case DRM_FORMAT_XBGR2101010: | |
4418 | case DRM_FORMAT_RGBX1010102: | |
4419 | case DRM_FORMAT_BGRX1010102: | |
4420 | case DRM_FORMAT_ARGB2101010: | |
4421 | case DRM_FORMAT_ABGR2101010: | |
4422 | case DRM_FORMAT_RGBA1010102: | |
4423 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4424 | *depth = 30; |
4425 | *bpp = 32; | |
4426 | break; | |
04b3924d VS |
4427 | case DRM_FORMAT_ARGB8888: |
4428 | case DRM_FORMAT_ABGR8888: | |
4429 | case DRM_FORMAT_RGBA8888: | |
4430 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4431 | *depth = 32; |
4432 | *bpp = 32; | |
4433 | break; | |
4434 | default: | |
23c453a4 VS |
4435 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4436 | drm_get_format_name(format)); | |
248dbc23 DA |
4437 | *depth = 0; |
4438 | *bpp = 0; | |
4439 | break; | |
4440 | } | |
4441 | } | |
4442 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4443 | |
4444 | /** | |
4445 | * drm_format_num_planes - get the number of planes for format | |
4446 | * @format: pixel format (DRM_FORMAT_*) | |
4447 | * | |
c8e32cc1 | 4448 | * Returns: |
141670e9 VS |
4449 | * The number of planes used by the specified pixel format. |
4450 | */ | |
4451 | int drm_format_num_planes(uint32_t format) | |
4452 | { | |
4453 | switch (format) { | |
4454 | case DRM_FORMAT_YUV410: | |
4455 | case DRM_FORMAT_YVU410: | |
4456 | case DRM_FORMAT_YUV411: | |
4457 | case DRM_FORMAT_YVU411: | |
4458 | case DRM_FORMAT_YUV420: | |
4459 | case DRM_FORMAT_YVU420: | |
4460 | case DRM_FORMAT_YUV422: | |
4461 | case DRM_FORMAT_YVU422: | |
4462 | case DRM_FORMAT_YUV444: | |
4463 | case DRM_FORMAT_YVU444: | |
4464 | return 3; | |
4465 | case DRM_FORMAT_NV12: | |
4466 | case DRM_FORMAT_NV21: | |
4467 | case DRM_FORMAT_NV16: | |
4468 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4469 | case DRM_FORMAT_NV24: |
4470 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4471 | return 2; |
4472 | default: | |
4473 | return 1; | |
4474 | } | |
4475 | } | |
4476 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4477 | |
4478 | /** | |
4479 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4480 | * @format: pixel format (DRM_FORMAT_*) | |
4481 | * @plane: plane index | |
4482 | * | |
c8e32cc1 | 4483 | * Returns: |
5a86bd55 VS |
4484 | * The bytes per pixel value for the specified plane. |
4485 | */ | |
4486 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4487 | { | |
4488 | unsigned int depth; | |
4489 | int bpp; | |
4490 | ||
4491 | if (plane >= drm_format_num_planes(format)) | |
4492 | return 0; | |
4493 | ||
4494 | switch (format) { | |
4495 | case DRM_FORMAT_YUYV: | |
4496 | case DRM_FORMAT_YVYU: | |
4497 | case DRM_FORMAT_UYVY: | |
4498 | case DRM_FORMAT_VYUY: | |
4499 | return 2; | |
4500 | case DRM_FORMAT_NV12: | |
4501 | case DRM_FORMAT_NV21: | |
4502 | case DRM_FORMAT_NV16: | |
4503 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4504 | case DRM_FORMAT_NV24: |
4505 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4506 | return plane ? 2 : 1; |
4507 | case DRM_FORMAT_YUV410: | |
4508 | case DRM_FORMAT_YVU410: | |
4509 | case DRM_FORMAT_YUV411: | |
4510 | case DRM_FORMAT_YVU411: | |
4511 | case DRM_FORMAT_YUV420: | |
4512 | case DRM_FORMAT_YVU420: | |
4513 | case DRM_FORMAT_YUV422: | |
4514 | case DRM_FORMAT_YVU422: | |
4515 | case DRM_FORMAT_YUV444: | |
4516 | case DRM_FORMAT_YVU444: | |
4517 | return 1; | |
4518 | default: | |
4519 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4520 | return bpp >> 3; | |
4521 | } | |
4522 | } | |
4523 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4524 | |
4525 | /** | |
4526 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4527 | * @format: pixel format (DRM_FORMAT_*) | |
4528 | * | |
c8e32cc1 | 4529 | * Returns: |
01b68b04 VS |
4530 | * The horizontal chroma subsampling factor for the |
4531 | * specified pixel format. | |
4532 | */ | |
4533 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4534 | { | |
4535 | switch (format) { | |
4536 | case DRM_FORMAT_YUV411: | |
4537 | case DRM_FORMAT_YVU411: | |
4538 | case DRM_FORMAT_YUV410: | |
4539 | case DRM_FORMAT_YVU410: | |
4540 | return 4; | |
4541 | case DRM_FORMAT_YUYV: | |
4542 | case DRM_FORMAT_YVYU: | |
4543 | case DRM_FORMAT_UYVY: | |
4544 | case DRM_FORMAT_VYUY: | |
4545 | case DRM_FORMAT_NV12: | |
4546 | case DRM_FORMAT_NV21: | |
4547 | case DRM_FORMAT_NV16: | |
4548 | case DRM_FORMAT_NV61: | |
4549 | case DRM_FORMAT_YUV422: | |
4550 | case DRM_FORMAT_YVU422: | |
4551 | case DRM_FORMAT_YUV420: | |
4552 | case DRM_FORMAT_YVU420: | |
4553 | return 2; | |
4554 | default: | |
4555 | return 1; | |
4556 | } | |
4557 | } | |
4558 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4559 | ||
4560 | /** | |
4561 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4562 | * @format: pixel format (DRM_FORMAT_*) | |
4563 | * | |
c8e32cc1 | 4564 | * Returns: |
01b68b04 VS |
4565 | * The vertical chroma subsampling factor for the |
4566 | * specified pixel format. | |
4567 | */ | |
4568 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4569 | { | |
4570 | switch (format) { | |
4571 | case DRM_FORMAT_YUV410: | |
4572 | case DRM_FORMAT_YVU410: | |
4573 | return 4; | |
4574 | case DRM_FORMAT_YUV420: | |
4575 | case DRM_FORMAT_YVU420: | |
4576 | case DRM_FORMAT_NV12: | |
4577 | case DRM_FORMAT_NV21: | |
4578 | return 2; | |
4579 | default: | |
4580 | return 1; | |
4581 | } | |
4582 | } | |
4583 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 LP |
4584 | |
4585 | /** | |
4586 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
4587 | * @dev: DRM device | |
4588 | * | |
4589 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
4590 | * configuration of @dev. | |
4591 | * | |
4592 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
4593 | * problem, since this should happen single threaded at init time. It is the | |
4594 | * driver's problem to ensure this guarantee. | |
4595 | * | |
4596 | */ | |
4597 | void drm_mode_config_init(struct drm_device *dev) | |
4598 | { | |
4599 | mutex_init(&dev->mode_config.mutex); | |
4600 | mutex_init(&dev->mode_config.idr_mutex); | |
4601 | mutex_init(&dev->mode_config.fb_lock); | |
4602 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
4603 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
4604 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 4605 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
4606 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
4607 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
4608 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
4609 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
4610 | idr_init(&dev->mode_config.crtc_idr); | |
4611 | ||
4612 | drm_modeset_lock_all(dev); | |
4613 | drm_mode_create_standard_connector_properties(dev); | |
9922ab5a | 4614 | drm_mode_create_standard_plane_properties(dev); |
87d24fc3 LP |
4615 | drm_modeset_unlock_all(dev); |
4616 | ||
4617 | /* Just to be sure */ | |
4618 | dev->mode_config.num_fb = 0; | |
4619 | dev->mode_config.num_connector = 0; | |
4620 | dev->mode_config.num_crtc = 0; | |
4621 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
4622 | dev->mode_config.num_overlay_plane = 0; |
4623 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
4624 | } |
4625 | EXPORT_SYMBOL(drm_mode_config_init); | |
4626 | ||
4627 | /** | |
4628 | * drm_mode_config_cleanup - free up DRM mode_config info | |
4629 | * @dev: DRM device | |
4630 | * | |
4631 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
4632 | * free up the framebuffers and associated buffer objects. | |
4633 | * | |
4634 | * Note that since this /should/ happen single-threaded at driver/device | |
4635 | * teardown time, no locking is required. It's the driver's job to ensure that | |
4636 | * this guarantee actually holds true. | |
4637 | * | |
4638 | * FIXME: cleanup any dangling user buffer objects too | |
4639 | */ | |
4640 | void drm_mode_config_cleanup(struct drm_device *dev) | |
4641 | { | |
4642 | struct drm_connector *connector, *ot; | |
4643 | struct drm_crtc *crtc, *ct; | |
4644 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 4645 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
4646 | struct drm_framebuffer *fb, *fbt; |
4647 | struct drm_property *property, *pt; | |
4648 | struct drm_property_blob *blob, *bt; | |
4649 | struct drm_plane *plane, *plt; | |
4650 | ||
4651 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
4652 | head) { | |
4653 | encoder->funcs->destroy(encoder); | |
4654 | } | |
4655 | ||
3b336ec4 SP |
4656 | list_for_each_entry_safe(bridge, brt, |
4657 | &dev->mode_config.bridge_list, head) { | |
4658 | bridge->funcs->destroy(bridge); | |
4659 | } | |
4660 | ||
87d24fc3 LP |
4661 | list_for_each_entry_safe(connector, ot, |
4662 | &dev->mode_config.connector_list, head) { | |
4663 | connector->funcs->destroy(connector); | |
4664 | } | |
4665 | ||
4666 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
4667 | head) { | |
4668 | drm_property_destroy(dev, property); | |
4669 | } | |
4670 | ||
4671 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
4672 | head) { | |
4673 | drm_property_destroy_blob(dev, blob); | |
4674 | } | |
4675 | ||
4676 | /* | |
4677 | * Single-threaded teardown context, so it's not required to grab the | |
4678 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
4679 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
4680 | * | |
4681 | * Also, if there are any framebuffers left, that's a driver leak now, | |
4682 | * so politely WARN about this. | |
4683 | */ | |
4684 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
4685 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
4686 | drm_framebuffer_remove(fb); | |
4687 | } | |
4688 | ||
4689 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
4690 | head) { | |
4691 | plane->funcs->destroy(plane); | |
4692 | } | |
4693 | ||
4694 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
4695 | crtc->funcs->destroy(crtc); | |
4696 | } | |
4697 | ||
4698 | idr_destroy(&dev->mode_config.crtc_idr); | |
4699 | } | |
4700 | EXPORT_SYMBOL(drm_mode_config_cleanup); |