]>
Commit | Line | Data |
---|---|---|
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 | ||
124 | /* | |
125 | * Optional properties | |
126 | */ | |
d20d3174 | 127 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 128 | { |
53bd8389 JB |
129 | { DRM_MODE_SCALE_NONE, "None" }, |
130 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
131 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
132 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
133 | }; |
134 | ||
f453ba04 DA |
135 | /* |
136 | * Non-global properties, but "required" for certain connectors. | |
137 | */ | |
d20d3174 | 138 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
139 | { |
140 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
141 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
142 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
143 | }; | |
144 | ||
145 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
146 | ||
d20d3174 | 147 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
148 | { |
149 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
150 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
151 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
152 | }; | |
153 | ||
154 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
155 | drm_dvi_i_subconnector_enum_list) | |
156 | ||
d20d3174 | 157 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
158 | { |
159 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
160 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
161 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
162 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 163 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
164 | }; |
165 | ||
166 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
167 | ||
d20d3174 | 168 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
169 | { |
170 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
171 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
172 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
173 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 174 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
175 | }; |
176 | ||
177 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
178 | drm_tv_subconnector_enum_list) | |
179 | ||
d20d3174 | 180 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
181 | { DRM_MODE_DIRTY_OFF, "Off" }, |
182 | { DRM_MODE_DIRTY_ON, "On" }, | |
183 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
184 | }; | |
185 | ||
f453ba04 DA |
186 | struct drm_conn_prop_enum_list { |
187 | int type; | |
d20d3174 | 188 | const char *name; |
b21e3afe | 189 | struct ida ida; |
f453ba04 DA |
190 | }; |
191 | ||
192 | /* | |
193 | * Connector and encoder types. | |
194 | */ | |
195 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
196 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
197 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
198 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
199 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
200 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
201 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
202 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
203 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
204 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
205 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
206 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
207 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
208 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
209 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
210 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
211 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 212 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
213 | }; |
214 | ||
d20d3174 | 215 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
216 | { { DRM_MODE_ENCODER_NONE, "None" }, |
217 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
218 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
219 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
220 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 221 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 222 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
f453ba04 DA |
223 | }; |
224 | ||
ac1bb36c JB |
225 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
226 | { | |
227 | { SubPixelUnknown, "Unknown" }, | |
228 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
229 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
230 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
231 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
232 | { SubPixelNone, "None" }, | |
233 | }; | |
234 | ||
b21e3afe IM |
235 | void drm_connector_ida_init(void) |
236 | { | |
237 | int i; | |
238 | ||
239 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
240 | ida_init(&drm_connector_enum_list[i].ida); | |
241 | } | |
242 | ||
243 | void drm_connector_ida_destroy(void) | |
244 | { | |
245 | int i; | |
246 | ||
247 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
248 | ida_destroy(&drm_connector_enum_list[i].ida); | |
249 | } | |
250 | ||
c8e32cc1 DV |
251 | /** |
252 | * drm_get_encoder_name - return a string for encoder | |
253 | * @encoder: encoder to compute name of | |
254 | * | |
255 | * Note that the buffer used by this function is globally shared and owned by | |
256 | * the function itself. | |
257 | * | |
258 | * FIXME: This isn't really multithreading safe. | |
259 | */ | |
d20d3174 | 260 | const char *drm_get_encoder_name(const struct drm_encoder *encoder) |
f453ba04 DA |
261 | { |
262 | static char buf[32]; | |
263 | ||
264 | snprintf(buf, 32, "%s-%d", | |
265 | drm_encoder_enum_list[encoder->encoder_type].name, | |
266 | encoder->base.id); | |
267 | return buf; | |
268 | } | |
13a8195b | 269 | EXPORT_SYMBOL(drm_get_encoder_name); |
f453ba04 | 270 | |
c8e32cc1 DV |
271 | /** |
272 | * drm_get_connector_name - return a string for connector | |
273 | * @connector: connector to compute name of | |
274 | * | |
275 | * Note that the buffer used by this function is globally shared and owned by | |
276 | * the function itself. | |
277 | * | |
278 | * FIXME: This isn't really multithreading safe. | |
279 | */ | |
d20d3174 | 280 | const char *drm_get_connector_name(const struct drm_connector *connector) |
f453ba04 DA |
281 | { |
282 | static char buf[32]; | |
283 | ||
284 | snprintf(buf, 32, "%s-%d", | |
285 | drm_connector_enum_list[connector->connector_type].name, | |
286 | connector->connector_type_id); | |
287 | return buf; | |
288 | } | |
289 | EXPORT_SYMBOL(drm_get_connector_name); | |
290 | ||
c8e32cc1 DV |
291 | /** |
292 | * drm_get_connector_status_name - return a string for connector status | |
293 | * @status: connector status to compute name of | |
294 | * | |
295 | * In contrast to the other drm_get_*_name functions this one here returns a | |
296 | * const pointer and hence is threadsafe. | |
297 | */ | |
d20d3174 | 298 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
299 | { |
300 | if (status == connector_status_connected) | |
301 | return "connected"; | |
302 | else if (status == connector_status_disconnected) | |
303 | return "disconnected"; | |
304 | else | |
305 | return "unknown"; | |
306 | } | |
ed7951dc | 307 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 308 | |
ac1bb36c JB |
309 | /** |
310 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
311 | * @order: enum of subpixel_order | |
312 | * | |
313 | * Note you could abuse this and return something out of bounds, but that | |
314 | * would be a caller error. No unscrubbed user data should make it here. | |
315 | */ | |
316 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
317 | { | |
318 | return drm_subpixel_enum_list[order].name; | |
319 | } | |
320 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
321 | ||
6ba6d03e VS |
322 | static char printable_char(int c) |
323 | { | |
324 | return isascii(c) && isprint(c) ? c : '?'; | |
325 | } | |
326 | ||
c8e32cc1 DV |
327 | /** |
328 | * drm_get_format_name - return a string for drm fourcc format | |
329 | * @format: format to compute name of | |
330 | * | |
331 | * Note that the buffer used by this function is globally shared and owned by | |
332 | * the function itself. | |
333 | * | |
334 | * FIXME: This isn't really multithreading safe. | |
335 | */ | |
d20d3174 | 336 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
337 | { |
338 | static char buf[32]; | |
339 | ||
340 | snprintf(buf, sizeof(buf), | |
341 | "%c%c%c%c %s-endian (0x%08x)", | |
342 | printable_char(format & 0xff), | |
343 | printable_char((format >> 8) & 0xff), | |
344 | printable_char((format >> 16) & 0xff), | |
345 | printable_char((format >> 24) & 0x7f), | |
346 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
347 | format); | |
348 | ||
349 | return buf; | |
350 | } | |
351 | EXPORT_SYMBOL(drm_get_format_name); | |
352 | ||
f453ba04 | 353 | /** |
065a50ed | 354 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 355 | * @dev: DRM device |
065a50ed DV |
356 | * @obj: object pointer, used to generate unique ID |
357 | * @obj_type: object type | |
f453ba04 | 358 | * |
f453ba04 | 359 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
360 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
361 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
362 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 363 | * |
c8e32cc1 | 364 | * Returns: |
f453ba04 DA |
365 | * New unique (relative to other objects in @dev) integer identifier for the |
366 | * object. | |
367 | */ | |
8bd441b2 DV |
368 | int drm_mode_object_get(struct drm_device *dev, |
369 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 370 | { |
f453ba04 DA |
371 | int ret; |
372 | ||
ad2563c2 | 373 | mutex_lock(&dev->mode_config.idr_mutex); |
2e928815 TH |
374 | ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL); |
375 | if (ret >= 0) { | |
4b096ac1 DV |
376 | /* |
377 | * Set up the object linking under the protection of the idr | |
378 | * lock so that other users can't see inconsistent state. | |
379 | */ | |
2e928815 | 380 | obj->id = ret; |
4b096ac1 DV |
381 | obj->type = obj_type; |
382 | } | |
ad2563c2 | 383 | mutex_unlock(&dev->mode_config.idr_mutex); |
4b096ac1 | 384 | |
2e928815 | 385 | return ret < 0 ? ret : 0; |
f453ba04 DA |
386 | } |
387 | ||
388 | /** | |
065a50ed | 389 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 390 | * @dev: DRM device |
065a50ed | 391 | * @object: object to free |
f453ba04 | 392 | * |
c8e32cc1 DV |
393 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
394 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
395 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 396 | */ |
8bd441b2 DV |
397 | void drm_mode_object_put(struct drm_device *dev, |
398 | struct drm_mode_object *object) | |
f453ba04 | 399 | { |
ad2563c2 | 400 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 401 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 402 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
403 | } |
404 | ||
786b99ed DV |
405 | /** |
406 | * drm_mode_object_find - look up a drm object with static lifetime | |
407 | * @dev: drm device | |
408 | * @id: id of the mode object | |
409 | * @type: type of the mode object | |
410 | * | |
411 | * Note that framebuffers cannot be looked up with this functions - since those | |
412 | * are reference counted, they need special treatment. | |
413 | */ | |
7a9c9060 DV |
414 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
415 | uint32_t id, uint32_t type) | |
f453ba04 | 416 | { |
ad2563c2 | 417 | struct drm_mode_object *obj = NULL; |
f453ba04 | 418 | |
786b99ed DV |
419 | /* Framebuffers are reference counted and need their own lookup |
420 | * function.*/ | |
421 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
422 | ||
ad2563c2 | 423 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
424 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
425 | if (!obj || (obj->type != type) || (obj->id != id)) | |
ad2563c2 JB |
426 | obj = NULL; |
427 | mutex_unlock(&dev->mode_config.idr_mutex); | |
f453ba04 DA |
428 | |
429 | return obj; | |
430 | } | |
431 | EXPORT_SYMBOL(drm_mode_object_find); | |
432 | ||
f453ba04 DA |
433 | /** |
434 | * drm_framebuffer_init - initialize a framebuffer | |
435 | * @dev: DRM device | |
065a50ed DV |
436 | * @fb: framebuffer to be initialized |
437 | * @funcs: ... with these functions | |
f453ba04 | 438 | * |
f453ba04 DA |
439 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
440 | * functions & device file and adds it to the master fd list. | |
441 | * | |
4b096ac1 DV |
442 | * IMPORTANT: |
443 | * This functions publishes the fb and makes it available for concurrent access | |
444 | * by other users. Which means by this point the fb _must_ be fully set up - | |
445 | * since all the fb attributes are invariant over its lifetime, no further | |
446 | * locking but only correct reference counting is required. | |
447 | * | |
c8e32cc1 | 448 | * Returns: |
af901ca1 | 449 | * Zero on success, error code on failure. |
f453ba04 DA |
450 | */ |
451 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
452 | const struct drm_framebuffer_funcs *funcs) | |
453 | { | |
454 | int ret; | |
455 | ||
4b096ac1 | 456 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 457 | kref_init(&fb->refcount); |
4b096ac1 DV |
458 | INIT_LIST_HEAD(&fb->filp_head); |
459 | fb->dev = dev; | |
460 | fb->funcs = funcs; | |
f7eff60e | 461 | |
f453ba04 | 462 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 463 | if (ret) |
4b096ac1 | 464 | goto out; |
f453ba04 | 465 | |
2b677e8c DV |
466 | /* Grab the idr reference. */ |
467 | drm_framebuffer_reference(fb); | |
468 | ||
f453ba04 DA |
469 | dev->mode_config.num_fb++; |
470 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
471 | out: |
472 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
473 | |
474 | return 0; | |
475 | } | |
476 | EXPORT_SYMBOL(drm_framebuffer_init); | |
477 | ||
f7eff60e RC |
478 | static void drm_framebuffer_free(struct kref *kref) |
479 | { | |
480 | struct drm_framebuffer *fb = | |
481 | container_of(kref, struct drm_framebuffer, refcount); | |
482 | fb->funcs->destroy(fb); | |
483 | } | |
484 | ||
2b677e8c DV |
485 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
486 | uint32_t id) | |
487 | { | |
488 | struct drm_mode_object *obj = NULL; | |
489 | struct drm_framebuffer *fb; | |
490 | ||
491 | mutex_lock(&dev->mode_config.idr_mutex); | |
492 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
493 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
494 | fb = NULL; | |
495 | else | |
496 | fb = obj_to_fb(obj); | |
497 | mutex_unlock(&dev->mode_config.idr_mutex); | |
498 | ||
499 | return fb; | |
500 | } | |
501 | ||
786b99ed DV |
502 | /** |
503 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
504 | * @dev: drm device | |
505 | * @id: id of the fb object | |
506 | * | |
507 | * If successful, this grabs an additional reference to the framebuffer - | |
508 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 509 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
510 | */ |
511 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
512 | uint32_t id) | |
513 | { | |
786b99ed DV |
514 | struct drm_framebuffer *fb; |
515 | ||
516 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 517 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed | 518 | if (fb) |
9131d3d8 | 519 | drm_framebuffer_reference(fb); |
786b99ed DV |
520 | mutex_unlock(&dev->mode_config.fb_lock); |
521 | ||
522 | return fb; | |
523 | } | |
524 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
525 | ||
f7eff60e RC |
526 | /** |
527 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
528 | * @fb: framebuffer to unref |
529 | * | |
530 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
531 | */ |
532 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
533 | { | |
f7eff60e | 534 | DRM_DEBUG("FB ID: %d\n", fb->base.id); |
f7eff60e RC |
535 | kref_put(&fb->refcount, drm_framebuffer_free); |
536 | } | |
537 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
538 | ||
539 | /** | |
540 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 541 | * @fb: framebuffer |
c8e32cc1 DV |
542 | * |
543 | * This functions increments the fb's refcount. | |
f7eff60e RC |
544 | */ |
545 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
546 | { | |
547 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
548 | kref_get(&fb->refcount); | |
549 | } | |
550 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
551 | ||
2b677e8c DV |
552 | static void drm_framebuffer_free_bug(struct kref *kref) |
553 | { | |
554 | BUG(); | |
555 | } | |
556 | ||
6c2a7532 DV |
557 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
558 | { | |
559 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
560 | kref_put(&fb->refcount, drm_framebuffer_free_bug); | |
561 | } | |
562 | ||
2b677e8c DV |
563 | /* dev->mode_config.fb_lock must be held! */ |
564 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
565 | struct drm_framebuffer *fb) | |
566 | { | |
567 | mutex_lock(&dev->mode_config.idr_mutex); | |
568 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
569 | mutex_unlock(&dev->mode_config.idr_mutex); | |
570 | ||
571 | fb->base.id = 0; | |
572 | ||
6c2a7532 | 573 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
574 | } |
575 | ||
36206361 DV |
576 | /** |
577 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
578 | * @fb: fb to unregister | |
579 | * | |
580 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
581 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
582 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
583 | * locking inversion). | |
584 | */ | |
585 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
586 | { | |
2b677e8c DV |
587 | struct drm_device *dev = fb->dev; |
588 | ||
589 | mutex_lock(&dev->mode_config.fb_lock); | |
590 | /* Mark fb as reaped and drop idr ref. */ | |
591 | __drm_framebuffer_unregister(dev, fb); | |
592 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
593 | } |
594 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
595 | ||
f453ba04 DA |
596 | /** |
597 | * drm_framebuffer_cleanup - remove a framebuffer object | |
598 | * @fb: framebuffer to remove | |
599 | * | |
c8e32cc1 DV |
600 | * Cleanup framebuffer. This function is intended to be used from the drivers |
601 | * ->destroy callback. It can also be used to clean up driver private | |
602 | * framebuffers embedded into a larger structure. | |
36206361 DV |
603 | * |
604 | * Note that this function does not remove the fb from active usuage - if it is | |
605 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
606 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
607 | * | |
608 | * Also, the framebuffer will not be removed from the lookup idr - for | |
609 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
610 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
611 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
612 | */ |
613 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
614 | { |
615 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 616 | |
4b096ac1 | 617 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
618 | list_del(&fb->head); |
619 | dev->mode_config.num_fb--; | |
4b096ac1 | 620 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
621 | } |
622 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
623 | ||
624 | /** | |
625 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
626 | * @fb: framebuffer to remove | |
627 | * | |
f7eff60e | 628 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 629 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
630 | * passed-in framebuffer. Might take the modeset locks. |
631 | * | |
632 | * Note that this function optimizes the cleanup away if the caller holds the | |
633 | * last reference to the framebuffer. It is also guaranteed to not take the | |
634 | * modeset locks in this case. | |
f7eff60e RC |
635 | */ |
636 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
637 | { |
638 | struct drm_device *dev = fb->dev; | |
639 | struct drm_crtc *crtc; | |
8cf5c917 | 640 | struct drm_plane *plane; |
5ef5f72f DA |
641 | struct drm_mode_set set; |
642 | int ret; | |
f453ba04 | 643 | |
4b096ac1 | 644 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 645 | |
b62584e3 DV |
646 | /* |
647 | * drm ABI mandates that we remove any deleted framebuffers from active | |
648 | * useage. But since most sane clients only remove framebuffers they no | |
649 | * longer need, try to optimize this away. | |
650 | * | |
651 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
652 | * means that we're the last holder and can skip it. Also, the refcount | |
653 | * can never increase from 1 again, so we don't need any barriers or | |
654 | * locks. | |
655 | * | |
656 | * Note that userspace could try to race with use and instate a new | |
657 | * usage _after_ we've cleared all current ones. End result will be an | |
658 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
659 | * in this manner. | |
660 | */ | |
661 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
662 | drm_modeset_lock_all(dev); | |
663 | /* remove from any CRTC */ | |
664 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
665 | if (crtc->fb == fb) { | |
666 | /* should turn off the crtc */ | |
667 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
668 | set.crtc = crtc; | |
669 | set.fb = NULL; | |
670 | ret = drm_mode_set_config_internal(&set); | |
671 | if (ret) | |
672 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
673 | } | |
5ef5f72f | 674 | } |
f453ba04 | 675 | |
b62584e3 | 676 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
677 | if (plane->fb == fb) |
678 | drm_plane_force_disable(plane); | |
8cf5c917 | 679 | } |
b62584e3 | 680 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
681 | } |
682 | ||
f7eff60e | 683 | drm_framebuffer_unreference(fb); |
f453ba04 | 684 | } |
f7eff60e | 685 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 DA |
686 | |
687 | /** | |
688 | * drm_crtc_init - Initialise a new CRTC object | |
689 | * @dev: DRM device | |
690 | * @crtc: CRTC object to init | |
691 | * @funcs: callbacks for the new CRTC | |
692 | * | |
ad6f5c34 | 693 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 694 | * |
c8e32cc1 | 695 | * Returns: |
6bfc56aa | 696 | * Zero on success, error code on failure. |
f453ba04 | 697 | */ |
6bfc56aa | 698 | int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, |
f453ba04 DA |
699 | const struct drm_crtc_funcs *funcs) |
700 | { | |
6bfc56aa VS |
701 | int ret; |
702 | ||
f453ba04 DA |
703 | crtc->dev = dev; |
704 | crtc->funcs = funcs; | |
7c80e128 | 705 | crtc->invert_dimensions = false; |
f453ba04 | 706 | |
84849903 | 707 | drm_modeset_lock_all(dev); |
29494c17 DV |
708 | mutex_init(&crtc->mutex); |
709 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
6bfc56aa VS |
710 | |
711 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
712 | if (ret) | |
713 | goto out; | |
f453ba04 | 714 | |
bffd9de0 PZ |
715 | crtc->base.properties = &crtc->properties; |
716 | ||
f453ba04 DA |
717 | list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
718 | dev->mode_config.num_crtc++; | |
6bfc56aa VS |
719 | |
720 | out: | |
84849903 | 721 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
722 | |
723 | return ret; | |
f453ba04 DA |
724 | } |
725 | EXPORT_SYMBOL(drm_crtc_init); | |
726 | ||
727 | /** | |
ad6f5c34 | 728 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
729 | * @crtc: CRTC to cleanup |
730 | * | |
ad6f5c34 VS |
731 | * This function cleans up @crtc and removes it from the DRM mode setting |
732 | * core. Note that the function does *not* free the crtc structure itself, | |
733 | * this is the responsibility of the caller. | |
f453ba04 DA |
734 | */ |
735 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
736 | { | |
737 | struct drm_device *dev = crtc->dev; | |
738 | ||
9e1c156f SK |
739 | kfree(crtc->gamma_store); |
740 | crtc->gamma_store = NULL; | |
f453ba04 DA |
741 | |
742 | drm_mode_object_put(dev, &crtc->base); | |
743 | list_del(&crtc->head); | |
744 | dev->mode_config.num_crtc--; | |
745 | } | |
746 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
747 | ||
db5f7a6e RK |
748 | /** |
749 | * drm_crtc_index - find the index of a registered CRTC | |
750 | * @crtc: CRTC to find index for | |
751 | * | |
752 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
753 | * device's list of CRTCs. | |
754 | */ | |
755 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
756 | { | |
757 | unsigned int index = 0; | |
758 | struct drm_crtc *tmp; | |
759 | ||
760 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
761 | if (tmp == crtc) | |
762 | return index; | |
763 | ||
764 | index++; | |
765 | } | |
766 | ||
767 | BUG(); | |
768 | } | |
769 | EXPORT_SYMBOL(drm_crtc_index); | |
770 | ||
86f422d5 | 771 | /* |
f453ba04 DA |
772 | * drm_mode_remove - remove and free a mode |
773 | * @connector: connector list to modify | |
774 | * @mode: mode to remove | |
775 | * | |
f453ba04 DA |
776 | * Remove @mode from @connector's mode list, then free it. |
777 | */ | |
86f422d5 LD |
778 | static void drm_mode_remove(struct drm_connector *connector, |
779 | struct drm_display_mode *mode) | |
f453ba04 DA |
780 | { |
781 | list_del(&mode->head); | |
554f1d78 | 782 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 783 | } |
f453ba04 DA |
784 | |
785 | /** | |
786 | * drm_connector_init - Init a preallocated connector | |
787 | * @dev: DRM device | |
788 | * @connector: the connector to init | |
789 | * @funcs: callbacks for this connector | |
065a50ed | 790 | * @connector_type: user visible type of the connector |
f453ba04 | 791 | * |
f453ba04 DA |
792 | * Initialises a preallocated connector. Connectors should be |
793 | * subclassed as part of driver connector objects. | |
6bfc56aa | 794 | * |
c8e32cc1 | 795 | * Returns: |
6bfc56aa | 796 | * Zero on success, error code on failure. |
f453ba04 | 797 | */ |
6bfc56aa VS |
798 | int drm_connector_init(struct drm_device *dev, |
799 | struct drm_connector *connector, | |
800 | const struct drm_connector_funcs *funcs, | |
801 | int connector_type) | |
f453ba04 | 802 | { |
6bfc56aa | 803 | int ret; |
b21e3afe IM |
804 | struct ida *connector_ida = |
805 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 806 | |
84849903 | 807 | drm_modeset_lock_all(dev); |
f453ba04 | 808 | |
6bfc56aa VS |
809 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
810 | if (ret) | |
811 | goto out; | |
812 | ||
7e3bdf4a | 813 | connector->base.properties = &connector->properties; |
f453ba04 DA |
814 | connector->dev = dev; |
815 | connector->funcs = funcs; | |
f453ba04 DA |
816 | connector->connector_type = connector_type; |
817 | connector->connector_type_id = | |
b21e3afe IM |
818 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
819 | if (connector->connector_type_id < 0) { | |
820 | ret = connector->connector_type_id; | |
821 | drm_mode_object_put(dev, &connector->base); | |
822 | goto out; | |
823 | } | |
f453ba04 DA |
824 | INIT_LIST_HEAD(&connector->probed_modes); |
825 | INIT_LIST_HEAD(&connector->modes); | |
826 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 827 | connector->status = connector_status_unknown; |
f453ba04 DA |
828 | |
829 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
830 | dev->mode_config.num_connector++; | |
831 | ||
a7331e5c | 832 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 833 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
834 | dev->mode_config.edid_property, |
835 | 0); | |
f453ba04 | 836 | |
58495563 | 837 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
838 | dev->mode_config.dpms_property, 0); |
839 | ||
6bfc56aa | 840 | out: |
84849903 | 841 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
842 | |
843 | return ret; | |
f453ba04 DA |
844 | } |
845 | EXPORT_SYMBOL(drm_connector_init); | |
846 | ||
847 | /** | |
848 | * drm_connector_cleanup - cleans up an initialised connector | |
849 | * @connector: connector to cleanup | |
850 | * | |
f453ba04 DA |
851 | * Cleans up the connector but doesn't free the object. |
852 | */ | |
853 | void drm_connector_cleanup(struct drm_connector *connector) | |
854 | { | |
855 | struct drm_device *dev = connector->dev; | |
856 | struct drm_display_mode *mode, *t; | |
857 | ||
858 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
859 | drm_mode_remove(connector, mode); | |
860 | ||
861 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
862 | drm_mode_remove(connector, mode); | |
863 | ||
b21e3afe IM |
864 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
865 | connector->connector_type_id); | |
866 | ||
f453ba04 DA |
867 | drm_mode_object_put(dev, &connector->base); |
868 | list_del(&connector->head); | |
6380c509 | 869 | dev->mode_config.num_connector--; |
f453ba04 DA |
870 | } |
871 | EXPORT_SYMBOL(drm_connector_cleanup); | |
872 | ||
c8e32cc1 DV |
873 | /** |
874 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
875 | * @dev: drm device | |
876 | * | |
877 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
878 | * be call when the device is disconnected, e.g. from an usb driver's | |
879 | * ->disconnect callback. | |
880 | */ | |
cbc7e221 DA |
881 | void drm_connector_unplug_all(struct drm_device *dev) |
882 | { | |
883 | struct drm_connector *connector; | |
884 | ||
885 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
886 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
887 | drm_sysfs_connector_remove(connector); | |
888 | ||
889 | } | |
890 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
891 | ||
c8e32cc1 DV |
892 | /** |
893 | * drm_bridge_init - initialize a drm transcoder/bridge | |
894 | * @dev: drm device | |
895 | * @bridge: transcoder/bridge to set up | |
896 | * @funcs: bridge function table | |
897 | * | |
898 | * Initialises a preallocated bridge. Bridges should be | |
899 | * subclassed as part of driver connector objects. | |
900 | * | |
901 | * Returns: | |
902 | * Zero on success, error code on failure. | |
903 | */ | |
3b336ec4 SP |
904 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
905 | const struct drm_bridge_funcs *funcs) | |
906 | { | |
907 | int ret; | |
908 | ||
909 | drm_modeset_lock_all(dev); | |
910 | ||
911 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
912 | if (ret) | |
913 | goto out; | |
914 | ||
915 | bridge->dev = dev; | |
916 | bridge->funcs = funcs; | |
917 | ||
918 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
919 | dev->mode_config.num_bridge++; | |
920 | ||
921 | out: | |
922 | drm_modeset_unlock_all(dev); | |
923 | return ret; | |
924 | } | |
925 | EXPORT_SYMBOL(drm_bridge_init); | |
926 | ||
c8e32cc1 DV |
927 | /** |
928 | * drm_bridge_cleanup - cleans up an initialised bridge | |
929 | * @bridge: bridge to cleanup | |
930 | * | |
931 | * Cleans up the bridge but doesn't free the object. | |
932 | */ | |
3b336ec4 SP |
933 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
934 | { | |
935 | struct drm_device *dev = bridge->dev; | |
936 | ||
937 | drm_modeset_lock_all(dev); | |
938 | drm_mode_object_put(dev, &bridge->base); | |
939 | list_del(&bridge->head); | |
940 | dev->mode_config.num_bridge--; | |
941 | drm_modeset_unlock_all(dev); | |
942 | } | |
943 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
944 | ||
c8e32cc1 DV |
945 | /** |
946 | * drm_encoder_init - Init a preallocated encoder | |
947 | * @dev: drm device | |
948 | * @encoder: the encoder to init | |
949 | * @funcs: callbacks for this encoder | |
950 | * @encoder_type: user visible type of the encoder | |
951 | * | |
952 | * Initialises a preallocated encoder. Encoder should be | |
953 | * subclassed as part of driver encoder objects. | |
954 | * | |
955 | * Returns: | |
956 | * Zero on success, error code on failure. | |
957 | */ | |
6bfc56aa | 958 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
959 | struct drm_encoder *encoder, |
960 | const struct drm_encoder_funcs *funcs, | |
961 | int encoder_type) | |
f453ba04 | 962 | { |
6bfc56aa VS |
963 | int ret; |
964 | ||
84849903 | 965 | drm_modeset_lock_all(dev); |
f453ba04 | 966 | |
6bfc56aa VS |
967 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
968 | if (ret) | |
969 | goto out; | |
f453ba04 | 970 | |
6bfc56aa | 971 | encoder->dev = dev; |
f453ba04 DA |
972 | encoder->encoder_type = encoder_type; |
973 | encoder->funcs = funcs; | |
974 | ||
975 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
976 | dev->mode_config.num_encoder++; | |
977 | ||
6bfc56aa | 978 | out: |
84849903 | 979 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
980 | |
981 | return ret; | |
f453ba04 DA |
982 | } |
983 | EXPORT_SYMBOL(drm_encoder_init); | |
984 | ||
c8e32cc1 DV |
985 | /** |
986 | * drm_encoder_cleanup - cleans up an initialised encoder | |
987 | * @encoder: encoder to cleanup | |
988 | * | |
989 | * Cleans up the encoder but doesn't free the object. | |
990 | */ | |
f453ba04 DA |
991 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
992 | { | |
993 | struct drm_device *dev = encoder->dev; | |
84849903 | 994 | drm_modeset_lock_all(dev); |
f453ba04 DA |
995 | drm_mode_object_put(dev, &encoder->base); |
996 | list_del(&encoder->head); | |
6380c509 | 997 | dev->mode_config.num_encoder--; |
84849903 | 998 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
999 | } |
1000 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1001 | ||
35f2c3ae VS |
1002 | /** |
1003 | * drm_plane_init - Initialise a new plane object | |
1004 | * @dev: DRM device | |
1005 | * @plane: plane object to init | |
1006 | * @possible_crtcs: bitmask of possible CRTCs | |
1007 | * @funcs: callbacks for the new plane | |
1008 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1009 | * @format_count: number of elements in @formats | |
1010 | * @priv: plane is private (hidden from userspace)? | |
1011 | * | |
c8e32cc1 DV |
1012 | * Inits a preallocate plane object created as base part of a driver plane |
1013 | * object. | |
35f2c3ae | 1014 | * |
c8e32cc1 | 1015 | * Returns: |
35f2c3ae VS |
1016 | * Zero on success, error code on failure. |
1017 | */ | |
8cf5c917 JB |
1018 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1019 | unsigned long possible_crtcs, | |
1020 | const struct drm_plane_funcs *funcs, | |
0a7eb243 RC |
1021 | const uint32_t *formats, uint32_t format_count, |
1022 | bool priv) | |
8cf5c917 | 1023 | { |
6bfc56aa VS |
1024 | int ret; |
1025 | ||
84849903 | 1026 | drm_modeset_lock_all(dev); |
8cf5c917 | 1027 | |
6bfc56aa VS |
1028 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1029 | if (ret) | |
1030 | goto out; | |
1031 | ||
4d93914a | 1032 | plane->base.properties = &plane->properties; |
8cf5c917 | 1033 | plane->dev = dev; |
8cf5c917 JB |
1034 | plane->funcs = funcs; |
1035 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1036 | GFP_KERNEL); | |
1037 | if (!plane->format_types) { | |
1038 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1039 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1040 | ret = -ENOMEM; |
1041 | goto out; | |
8cf5c917 JB |
1042 | } |
1043 | ||
308e5bcb | 1044 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1045 | plane->format_count = format_count; |
1046 | plane->possible_crtcs = possible_crtcs; | |
1047 | ||
0a7eb243 RC |
1048 | /* private planes are not exposed to userspace, but depending on |
1049 | * display hardware, might be convenient to allow sharing programming | |
1050 | * for the scanout engine with the crtc implementation. | |
1051 | */ | |
1052 | if (!priv) { | |
1053 | list_add_tail(&plane->head, &dev->mode_config.plane_list); | |
1054 | dev->mode_config.num_plane++; | |
1055 | } else { | |
1056 | INIT_LIST_HEAD(&plane->head); | |
1057 | } | |
8cf5c917 | 1058 | |
6bfc56aa | 1059 | out: |
84849903 | 1060 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1061 | |
6bfc56aa | 1062 | return ret; |
8cf5c917 JB |
1063 | } |
1064 | EXPORT_SYMBOL(drm_plane_init); | |
1065 | ||
35f2c3ae VS |
1066 | /** |
1067 | * drm_plane_cleanup - Clean up the core plane usage | |
1068 | * @plane: plane to cleanup | |
1069 | * | |
1070 | * This function cleans up @plane and removes it from the DRM mode setting | |
1071 | * core. Note that the function does *not* free the plane structure itself, | |
1072 | * this is the responsibility of the caller. | |
1073 | */ | |
8cf5c917 JB |
1074 | void drm_plane_cleanup(struct drm_plane *plane) |
1075 | { | |
1076 | struct drm_device *dev = plane->dev; | |
1077 | ||
84849903 | 1078 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1079 | kfree(plane->format_types); |
1080 | drm_mode_object_put(dev, &plane->base); | |
0a7eb243 RC |
1081 | /* if not added to a list, it must be a private plane */ |
1082 | if (!list_empty(&plane->head)) { | |
1083 | list_del(&plane->head); | |
1084 | dev->mode_config.num_plane--; | |
1085 | } | |
84849903 | 1086 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1087 | } |
1088 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1089 | ||
35f2c3ae VS |
1090 | /** |
1091 | * drm_plane_force_disable - Forcibly disable a plane | |
1092 | * @plane: plane to disable | |
1093 | * | |
1094 | * Forces the plane to be disabled. | |
1095 | * | |
1096 | * Used when the plane's current framebuffer is destroyed, | |
1097 | * and when restoring fbdev mode. | |
1098 | */ | |
9125e618 VS |
1099 | void drm_plane_force_disable(struct drm_plane *plane) |
1100 | { | |
1101 | int ret; | |
1102 | ||
1103 | if (!plane->fb) | |
1104 | return; | |
1105 | ||
1106 | ret = plane->funcs->disable_plane(plane); | |
1107 | if (ret) | |
1108 | DRM_ERROR("failed to disable plane with busy fb\n"); | |
1109 | /* disconnect the plane from the fb and crtc: */ | |
1110 | __drm_framebuffer_unreference(plane->fb); | |
1111 | plane->fb = NULL; | |
1112 | plane->crtc = NULL; | |
1113 | } | |
1114 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1115 | ||
f453ba04 DA |
1116 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1117 | { | |
1118 | struct drm_property *edid; | |
1119 | struct drm_property *dpms; | |
f453ba04 DA |
1120 | |
1121 | /* | |
1122 | * Standard properties (apply to all connectors) | |
1123 | */ | |
1124 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1125 | DRM_MODE_PROP_IMMUTABLE, | |
1126 | "EDID", 0); | |
1127 | dev->mode_config.edid_property = edid; | |
1128 | ||
4a67d391 SH |
1129 | dpms = drm_property_create_enum(dev, 0, |
1130 | "DPMS", drm_dpms_enum_list, | |
1131 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1132 | dev->mode_config.dpms_property = dpms; |
1133 | ||
1134 | return 0; | |
1135 | } | |
1136 | ||
1137 | /** | |
1138 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1139 | * @dev: DRM device | |
1140 | * | |
1141 | * Called by a driver the first time a DVI-I connector is made. | |
1142 | */ | |
1143 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1144 | { | |
1145 | struct drm_property *dvi_i_selector; | |
1146 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1147 | |
1148 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1149 | return 0; | |
1150 | ||
1151 | dvi_i_selector = | |
4a67d391 | 1152 | drm_property_create_enum(dev, 0, |
f453ba04 | 1153 | "select subconnector", |
4a67d391 | 1154 | drm_dvi_i_select_enum_list, |
f453ba04 | 1155 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1156 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1157 | ||
4a67d391 | 1158 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1159 | "subconnector", |
4a67d391 | 1160 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1161 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1162 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1163 | ||
1164 | return 0; | |
1165 | } | |
1166 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1167 | ||
1168 | /** | |
1169 | * drm_create_tv_properties - create TV specific connector properties | |
1170 | * @dev: DRM device | |
1171 | * @num_modes: number of different TV formats (modes) supported | |
1172 | * @modes: array of pointers to strings containing name of each format | |
1173 | * | |
1174 | * Called by a driver's TV initialization routine, this function creates | |
1175 | * the TV specific connector properties for a given device. Caller is | |
1176 | * responsible for allocating a list of format names and passing them to | |
1177 | * this routine. | |
1178 | */ | |
1179 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1180 | char *modes[]) | |
1181 | { | |
1182 | struct drm_property *tv_selector; | |
1183 | struct drm_property *tv_subconnector; | |
1184 | int i; | |
1185 | ||
1186 | if (dev->mode_config.tv_select_subconnector_property) | |
1187 | return 0; | |
1188 | ||
1189 | /* | |
1190 | * Basic connector properties | |
1191 | */ | |
4a67d391 | 1192 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1193 | "select subconnector", |
4a67d391 | 1194 | drm_tv_select_enum_list, |
f453ba04 | 1195 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1196 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1197 | ||
1198 | tv_subconnector = | |
4a67d391 SH |
1199 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1200 | "subconnector", | |
1201 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1202 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1203 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1204 | ||
1205 | /* | |
1206 | * Other, TV specific properties: margins & TV modes. | |
1207 | */ | |
1208 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1209 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1210 | |
1211 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1212 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1213 | |
1214 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1215 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1216 | |
1217 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1218 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1219 | |
1220 | dev->mode_config.tv_mode_property = | |
1221 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1222 | "mode", num_modes); | |
1223 | for (i = 0; i < num_modes; i++) | |
1224 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1225 | i, modes[i]); | |
1226 | ||
b6b7902e | 1227 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1228 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1229 | |
1230 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1231 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1232 | |
1233 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1234 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1235 | |
a75f0236 | 1236 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1237 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1238 | |
1239 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1240 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1241 | |
1242 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1243 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1244 | |
f453ba04 DA |
1245 | return 0; |
1246 | } | |
1247 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1248 | ||
1249 | /** | |
1250 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1251 | * @dev: DRM device | |
1252 | * | |
1253 | * Called by a driver the first time it's needed, must be attached to desired | |
1254 | * connectors. | |
1255 | */ | |
1256 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1257 | { | |
1258 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1259 | |
1260 | if (dev->mode_config.scaling_mode_property) | |
1261 | return 0; | |
1262 | ||
1263 | scaling_mode = | |
4a67d391 SH |
1264 | drm_property_create_enum(dev, 0, "scaling mode", |
1265 | drm_scaling_mode_enum_list, | |
f453ba04 | 1266 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1267 | |
1268 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1269 | ||
1270 | return 0; | |
1271 | } | |
1272 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1273 | ||
884840aa JB |
1274 | /** |
1275 | * drm_mode_create_dirty_property - create dirty property | |
1276 | * @dev: DRM device | |
1277 | * | |
1278 | * Called by a driver the first time it's needed, must be attached to desired | |
1279 | * connectors. | |
1280 | */ | |
1281 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1282 | { | |
1283 | struct drm_property *dirty_info; | |
884840aa JB |
1284 | |
1285 | if (dev->mode_config.dirty_info_property) | |
1286 | return 0; | |
1287 | ||
1288 | dirty_info = | |
4a67d391 | 1289 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1290 | "dirty", |
4a67d391 | 1291 | drm_dirty_info_enum_list, |
884840aa | 1292 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1293 | dev->mode_config.dirty_info_property = dirty_info; |
1294 | ||
1295 | return 0; | |
1296 | } | |
1297 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1298 | ||
ea9cbb06 | 1299 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1300 | { |
1301 | uint32_t total_objects = 0; | |
1302 | ||
1303 | total_objects += dev->mode_config.num_crtc; | |
1304 | total_objects += dev->mode_config.num_connector; | |
1305 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1306 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1307 | |
f453ba04 DA |
1308 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1309 | if (!group->id_list) | |
1310 | return -ENOMEM; | |
1311 | ||
1312 | group->num_crtcs = 0; | |
1313 | group->num_connectors = 0; | |
1314 | group->num_encoders = 0; | |
3b336ec4 | 1315 | group->num_bridges = 0; |
f453ba04 DA |
1316 | return 0; |
1317 | } | |
1318 | ||
c8e32cc1 DV |
1319 | /* |
1320 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1321 | * the drm core's responsibility to set up mode control groups. | |
1322 | */ | |
f453ba04 DA |
1323 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1324 | struct drm_mode_group *group) | |
1325 | { | |
1326 | struct drm_crtc *crtc; | |
1327 | struct drm_encoder *encoder; | |
1328 | struct drm_connector *connector; | |
3b336ec4 | 1329 | struct drm_bridge *bridge; |
f453ba04 DA |
1330 | int ret; |
1331 | ||
1332 | if ((ret = drm_mode_group_init(dev, group))) | |
1333 | return ret; | |
1334 | ||
1335 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1336 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1337 | ||
1338 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1339 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1340 | encoder->base.id; | |
1341 | ||
1342 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1343 | group->id_list[group->num_crtcs + group->num_encoders + | |
1344 | group->num_connectors++] = connector->base.id; | |
1345 | ||
3b336ec4 SP |
1346 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1347 | group->id_list[group->num_crtcs + group->num_encoders + | |
1348 | group->num_connectors + group->num_bridges++] = | |
1349 | bridge->base.id; | |
1350 | ||
f453ba04 DA |
1351 | return 0; |
1352 | } | |
9c1dfc55 | 1353 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1354 | |
f453ba04 DA |
1355 | /** |
1356 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1357 | * @out: drm_mode_modeinfo struct to return to the user | |
1358 | * @in: drm_display_mode to use | |
1359 | * | |
f453ba04 DA |
1360 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1361 | * the user. | |
1362 | */ | |
93bbf6db VS |
1363 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1364 | const struct drm_display_mode *in) | |
f453ba04 | 1365 | { |
e36fae38 VS |
1366 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1367 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1368 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1369 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1370 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1371 | "timing values too large for mode info\n"); | |
1372 | ||
f453ba04 DA |
1373 | out->clock = in->clock; |
1374 | out->hdisplay = in->hdisplay; | |
1375 | out->hsync_start = in->hsync_start; | |
1376 | out->hsync_end = in->hsync_end; | |
1377 | out->htotal = in->htotal; | |
1378 | out->hskew = in->hskew; | |
1379 | out->vdisplay = in->vdisplay; | |
1380 | out->vsync_start = in->vsync_start; | |
1381 | out->vsync_end = in->vsync_end; | |
1382 | out->vtotal = in->vtotal; | |
1383 | out->vscan = in->vscan; | |
1384 | out->vrefresh = in->vrefresh; | |
1385 | out->flags = in->flags; | |
1386 | out->type = in->type; | |
1387 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1388 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1389 | } | |
1390 | ||
1391 | /** | |
74afee7d | 1392 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1393 | * @out: drm_display_mode to return to the user |
1394 | * @in: drm_mode_modeinfo to use | |
1395 | * | |
f453ba04 DA |
1396 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1397 | * the caller. | |
90367bf6 | 1398 | * |
c8e32cc1 | 1399 | * Returns: |
90367bf6 | 1400 | * Zero on success, errno on failure. |
f453ba04 | 1401 | */ |
93bbf6db VS |
1402 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1403 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1404 | { |
90367bf6 VS |
1405 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1406 | return -ERANGE; | |
1407 | ||
5848ad40 DL |
1408 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1409 | return -EINVAL; | |
1410 | ||
f453ba04 DA |
1411 | out->clock = in->clock; |
1412 | out->hdisplay = in->hdisplay; | |
1413 | out->hsync_start = in->hsync_start; | |
1414 | out->hsync_end = in->hsync_end; | |
1415 | out->htotal = in->htotal; | |
1416 | out->hskew = in->hskew; | |
1417 | out->vdisplay = in->vdisplay; | |
1418 | out->vsync_start = in->vsync_start; | |
1419 | out->vsync_end = in->vsync_end; | |
1420 | out->vtotal = in->vtotal; | |
1421 | out->vscan = in->vscan; | |
1422 | out->vrefresh = in->vrefresh; | |
1423 | out->flags = in->flags; | |
1424 | out->type = in->type; | |
1425 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1426 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1427 | |
1428 | return 0; | |
f453ba04 DA |
1429 | } |
1430 | ||
1431 | /** | |
1432 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1433 | * @dev: drm device for the ioctl |
1434 | * @data: data pointer for the ioctl | |
1435 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1436 | * |
f453ba04 DA |
1437 | * Construct a set of configuration description structures and return |
1438 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1439 | * | |
1440 | * Called by the user via ioctl. | |
1441 | * | |
c8e32cc1 | 1442 | * Returns: |
f453ba04 DA |
1443 | * Zero on success, errno on failure. |
1444 | */ | |
1445 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1446 | struct drm_file *file_priv) | |
1447 | { | |
1448 | struct drm_mode_card_res *card_res = data; | |
1449 | struct list_head *lh; | |
1450 | struct drm_framebuffer *fb; | |
1451 | struct drm_connector *connector; | |
1452 | struct drm_crtc *crtc; | |
1453 | struct drm_encoder *encoder; | |
1454 | int ret = 0; | |
1455 | int connector_count = 0; | |
1456 | int crtc_count = 0; | |
1457 | int fb_count = 0; | |
1458 | int encoder_count = 0; | |
1459 | int copied = 0, i; | |
1460 | uint32_t __user *fb_id; | |
1461 | uint32_t __user *crtc_id; | |
1462 | uint32_t __user *connector_id; | |
1463 | uint32_t __user *encoder_id; | |
1464 | struct drm_mode_group *mode_group; | |
1465 | ||
fb3b06c8 DA |
1466 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1467 | return -EINVAL; | |
1468 | ||
f453ba04 | 1469 | |
4b096ac1 | 1470 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1471 | /* |
1472 | * For the non-control nodes we need to limit the list of resources | |
1473 | * by IDs in the group list for this node | |
1474 | */ | |
1475 | list_for_each(lh, &file_priv->fbs) | |
1476 | fb_count++; | |
1477 | ||
4b096ac1 DV |
1478 | /* handle this in 4 parts */ |
1479 | /* FBs */ | |
1480 | if (card_res->count_fbs >= fb_count) { | |
1481 | copied = 0; | |
1482 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1483 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1484 | if (put_user(fb->base.id, fb_id + copied)) { | |
1485 | mutex_unlock(&file_priv->fbs_lock); | |
1486 | return -EFAULT; | |
1487 | } | |
1488 | copied++; | |
1489 | } | |
1490 | } | |
1491 | card_res->count_fbs = fb_count; | |
1492 | mutex_unlock(&file_priv->fbs_lock); | |
1493 | ||
1494 | drm_modeset_lock_all(dev); | |
09f308f7 | 1495 | if (file_priv->minor->type != DRM_MINOR_LEGACY) { |
f453ba04 | 1496 | |
09f308f7 | 1497 | mode_group = NULL; |
f453ba04 DA |
1498 | list_for_each(lh, &dev->mode_config.crtc_list) |
1499 | crtc_count++; | |
1500 | ||
1501 | list_for_each(lh, &dev->mode_config.connector_list) | |
1502 | connector_count++; | |
1503 | ||
1504 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1505 | encoder_count++; | |
1506 | } else { | |
1507 | ||
09f308f7 | 1508 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1509 | crtc_count = mode_group->num_crtcs; |
1510 | connector_count = mode_group->num_connectors; | |
1511 | encoder_count = mode_group->num_encoders; | |
1512 | } | |
1513 | ||
1514 | card_res->max_height = dev->mode_config.max_height; | |
1515 | card_res->min_height = dev->mode_config.min_height; | |
1516 | card_res->max_width = dev->mode_config.max_width; | |
1517 | card_res->min_width = dev->mode_config.min_width; | |
1518 | ||
f453ba04 DA |
1519 | /* CRTCs */ |
1520 | if (card_res->count_crtcs >= crtc_count) { | |
1521 | copied = 0; | |
1522 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1523 | if (!mode_group) { |
f453ba04 DA |
1524 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1525 | head) { | |
9440106b | 1526 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1527 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1528 | ret = -EFAULT; | |
1529 | goto out; | |
1530 | } | |
1531 | copied++; | |
1532 | } | |
1533 | } else { | |
1534 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1535 | if (put_user(mode_group->id_list[i], | |
1536 | crtc_id + copied)) { | |
1537 | ret = -EFAULT; | |
1538 | goto out; | |
1539 | } | |
1540 | copied++; | |
1541 | } | |
1542 | } | |
1543 | } | |
1544 | card_res->count_crtcs = crtc_count; | |
1545 | ||
1546 | /* Encoders */ | |
1547 | if (card_res->count_encoders >= encoder_count) { | |
1548 | copied = 0; | |
1549 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1550 | if (!mode_group) { |
f453ba04 DA |
1551 | list_for_each_entry(encoder, |
1552 | &dev->mode_config.encoder_list, | |
1553 | head) { | |
9440106b JG |
1554 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
1555 | drm_get_encoder_name(encoder)); | |
f453ba04 DA |
1556 | if (put_user(encoder->base.id, encoder_id + |
1557 | copied)) { | |
1558 | ret = -EFAULT; | |
1559 | goto out; | |
1560 | } | |
1561 | copied++; | |
1562 | } | |
1563 | } else { | |
1564 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1565 | if (put_user(mode_group->id_list[i], | |
1566 | encoder_id + copied)) { | |
1567 | ret = -EFAULT; | |
1568 | goto out; | |
1569 | } | |
1570 | copied++; | |
1571 | } | |
1572 | ||
1573 | } | |
1574 | } | |
1575 | card_res->count_encoders = encoder_count; | |
1576 | ||
1577 | /* Connectors */ | |
1578 | if (card_res->count_connectors >= connector_count) { | |
1579 | copied = 0; | |
1580 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1581 | if (!mode_group) { |
f453ba04 DA |
1582 | list_for_each_entry(connector, |
1583 | &dev->mode_config.connector_list, | |
1584 | head) { | |
9440106b JG |
1585 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1586 | connector->base.id, | |
1587 | drm_get_connector_name(connector)); | |
f453ba04 DA |
1588 | if (put_user(connector->base.id, |
1589 | connector_id + copied)) { | |
1590 | ret = -EFAULT; | |
1591 | goto out; | |
1592 | } | |
1593 | copied++; | |
1594 | } | |
1595 | } else { | |
1596 | int start = mode_group->num_crtcs + | |
1597 | mode_group->num_encoders; | |
1598 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1599 | if (put_user(mode_group->id_list[i], | |
1600 | connector_id + copied)) { | |
1601 | ret = -EFAULT; | |
1602 | goto out; | |
1603 | } | |
1604 | copied++; | |
1605 | } | |
1606 | } | |
1607 | } | |
1608 | card_res->count_connectors = connector_count; | |
1609 | ||
9440106b | 1610 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1611 | card_res->count_connectors, card_res->count_encoders); |
1612 | ||
1613 | out: | |
84849903 | 1614 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1615 | return ret; |
1616 | } | |
1617 | ||
1618 | /** | |
1619 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1620 | * @dev: drm device for the ioctl |
1621 | * @data: data pointer for the ioctl | |
1622 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1623 | * |
f453ba04 DA |
1624 | * Construct a CRTC configuration structure to return to the user. |
1625 | * | |
1626 | * Called by the user via ioctl. | |
1627 | * | |
c8e32cc1 | 1628 | * Returns: |
f453ba04 DA |
1629 | * Zero on success, errno on failure. |
1630 | */ | |
1631 | int drm_mode_getcrtc(struct drm_device *dev, | |
1632 | void *data, struct drm_file *file_priv) | |
1633 | { | |
1634 | struct drm_mode_crtc *crtc_resp = data; | |
1635 | struct drm_crtc *crtc; | |
1636 | struct drm_mode_object *obj; | |
1637 | int ret = 0; | |
1638 | ||
fb3b06c8 DA |
1639 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1640 | return -EINVAL; | |
1641 | ||
84849903 | 1642 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1643 | |
1644 | obj = drm_mode_object_find(dev, crtc_resp->crtc_id, | |
1645 | DRM_MODE_OBJECT_CRTC); | |
1646 | if (!obj) { | |
f27657f2 | 1647 | ret = -ENOENT; |
f453ba04 DA |
1648 | goto out; |
1649 | } | |
1650 | crtc = obj_to_crtc(obj); | |
1651 | ||
1652 | crtc_resp->x = crtc->x; | |
1653 | crtc_resp->y = crtc->y; | |
1654 | crtc_resp->gamma_size = crtc->gamma_size; | |
1655 | if (crtc->fb) | |
1656 | crtc_resp->fb_id = crtc->fb->base.id; | |
1657 | else | |
1658 | crtc_resp->fb_id = 0; | |
1659 | ||
1660 | if (crtc->enabled) { | |
1661 | ||
1662 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1663 | crtc_resp->mode_valid = 1; | |
1664 | ||
1665 | } else { | |
1666 | crtc_resp->mode_valid = 0; | |
1667 | } | |
1668 | ||
1669 | out: | |
84849903 | 1670 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1671 | return ret; |
1672 | } | |
1673 | ||
61d8e328 DL |
1674 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1675 | const struct drm_file *file_priv) | |
1676 | { | |
1677 | /* | |
1678 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1679 | * modes, don't expose them. | |
1680 | */ | |
1681 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1682 | return false; | |
1683 | ||
1684 | return true; | |
1685 | } | |
1686 | ||
f453ba04 DA |
1687 | /** |
1688 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1689 | * @dev: drm device for the ioctl |
1690 | * @data: data pointer for the ioctl | |
1691 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1692 | * |
f453ba04 DA |
1693 | * Construct a connector configuration structure to return to the user. |
1694 | * | |
1695 | * Called by the user via ioctl. | |
1696 | * | |
c8e32cc1 | 1697 | * Returns: |
f453ba04 DA |
1698 | * Zero on success, errno on failure. |
1699 | */ | |
1700 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1701 | struct drm_file *file_priv) | |
1702 | { | |
1703 | struct drm_mode_get_connector *out_resp = data; | |
1704 | struct drm_mode_object *obj; | |
1705 | struct drm_connector *connector; | |
1706 | struct drm_display_mode *mode; | |
1707 | int mode_count = 0; | |
1708 | int props_count = 0; | |
1709 | int encoders_count = 0; | |
1710 | int ret = 0; | |
1711 | int copied = 0; | |
1712 | int i; | |
1713 | struct drm_mode_modeinfo u_mode; | |
1714 | struct drm_mode_modeinfo __user *mode_ptr; | |
1715 | uint32_t __user *prop_ptr; | |
1716 | uint64_t __user *prop_values; | |
1717 | uint32_t __user *encoder_ptr; | |
1718 | ||
fb3b06c8 DA |
1719 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1720 | return -EINVAL; | |
1721 | ||
f453ba04 DA |
1722 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1723 | ||
9440106b | 1724 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1725 | |
7b24056b | 1726 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 DA |
1727 | |
1728 | obj = drm_mode_object_find(dev, out_resp->connector_id, | |
1729 | DRM_MODE_OBJECT_CONNECTOR); | |
1730 | if (!obj) { | |
f27657f2 | 1731 | ret = -ENOENT; |
f453ba04 DA |
1732 | goto out; |
1733 | } | |
1734 | connector = obj_to_connector(obj); | |
1735 | ||
7f88a9be | 1736 | props_count = connector->properties.count; |
f453ba04 DA |
1737 | |
1738 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1739 | if (connector->encoder_ids[i] != 0) { | |
1740 | encoders_count++; | |
1741 | } | |
1742 | } | |
1743 | ||
1744 | if (out_resp->count_modes == 0) { | |
1745 | connector->funcs->fill_modes(connector, | |
1746 | dev->mode_config.max_width, | |
1747 | dev->mode_config.max_height); | |
1748 | } | |
1749 | ||
1750 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1751 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1752 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1753 | mode_count++; | |
f453ba04 DA |
1754 | |
1755 | out_resp->connector_id = connector->base.id; | |
1756 | out_resp->connector_type = connector->connector_type; | |
1757 | out_resp->connector_type_id = connector->connector_type_id; | |
1758 | out_resp->mm_width = connector->display_info.width_mm; | |
1759 | out_resp->mm_height = connector->display_info.height_mm; | |
1760 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1761 | out_resp->connection = connector->status; | |
1762 | if (connector->encoder) | |
1763 | out_resp->encoder_id = connector->encoder->base.id; | |
1764 | else | |
1765 | out_resp->encoder_id = 0; | |
1766 | ||
1767 | /* | |
1768 | * This ioctl is called twice, once to determine how much space is | |
1769 | * needed, and the 2nd time to fill it. | |
1770 | */ | |
1771 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1772 | copied = 0; | |
81f6c7f8 | 1773 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 1774 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
1775 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
1776 | continue; | |
1777 | ||
f453ba04 DA |
1778 | drm_crtc_convert_to_umode(&u_mode, mode); |
1779 | if (copy_to_user(mode_ptr + copied, | |
1780 | &u_mode, sizeof(u_mode))) { | |
1781 | ret = -EFAULT; | |
1782 | goto out; | |
1783 | } | |
1784 | copied++; | |
1785 | } | |
1786 | } | |
1787 | out_resp->count_modes = mode_count; | |
1788 | ||
1789 | if ((out_resp->count_props >= props_count) && props_count) { | |
1790 | copied = 0; | |
81f6c7f8 VS |
1791 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1792 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1793 | for (i = 0; i < connector->properties.count; i++) { |
1794 | if (put_user(connector->properties.ids[i], | |
1795 | prop_ptr + copied)) { | |
1796 | ret = -EFAULT; | |
1797 | goto out; | |
1798 | } | |
f453ba04 | 1799 | |
7f88a9be PZ |
1800 | if (put_user(connector->properties.values[i], |
1801 | prop_values + copied)) { | |
1802 | ret = -EFAULT; | |
1803 | goto out; | |
f453ba04 | 1804 | } |
7f88a9be | 1805 | copied++; |
f453ba04 DA |
1806 | } |
1807 | } | |
1808 | out_resp->count_props = props_count; | |
1809 | ||
1810 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1811 | copied = 0; | |
81f6c7f8 | 1812 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1813 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1814 | if (connector->encoder_ids[i] != 0) { | |
1815 | if (put_user(connector->encoder_ids[i], | |
1816 | encoder_ptr + copied)) { | |
1817 | ret = -EFAULT; | |
1818 | goto out; | |
1819 | } | |
1820 | copied++; | |
1821 | } | |
1822 | } | |
1823 | } | |
1824 | out_resp->count_encoders = encoders_count; | |
1825 | ||
1826 | out: | |
7b24056b DV |
1827 | mutex_unlock(&dev->mode_config.mutex); |
1828 | ||
f453ba04 DA |
1829 | return ret; |
1830 | } | |
1831 | ||
c8e32cc1 DV |
1832 | /** |
1833 | * drm_mode_getencoder - get encoder configuration | |
1834 | * @dev: drm device for the ioctl | |
1835 | * @data: data pointer for the ioctl | |
1836 | * @file_priv: drm file for the ioctl call | |
1837 | * | |
1838 | * Construct a encoder configuration structure to return to the user. | |
1839 | * | |
1840 | * Called by the user via ioctl. | |
1841 | * | |
1842 | * Returns: | |
1843 | * Zero on success, errno on failure. | |
1844 | */ | |
f453ba04 DA |
1845 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
1846 | struct drm_file *file_priv) | |
1847 | { | |
1848 | struct drm_mode_get_encoder *enc_resp = data; | |
1849 | struct drm_mode_object *obj; | |
1850 | struct drm_encoder *encoder; | |
1851 | int ret = 0; | |
1852 | ||
fb3b06c8 DA |
1853 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1854 | return -EINVAL; | |
1855 | ||
84849903 | 1856 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1857 | obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
1858 | DRM_MODE_OBJECT_ENCODER); | |
1859 | if (!obj) { | |
f27657f2 | 1860 | ret = -ENOENT; |
f453ba04 DA |
1861 | goto out; |
1862 | } | |
1863 | encoder = obj_to_encoder(obj); | |
1864 | ||
1865 | if (encoder->crtc) | |
1866 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1867 | else | |
1868 | enc_resp->crtc_id = 0; | |
1869 | enc_resp->encoder_type = encoder->encoder_type; | |
1870 | enc_resp->encoder_id = encoder->base.id; | |
1871 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1872 | enc_resp->possible_clones = encoder->possible_clones; | |
1873 | ||
1874 | out: | |
84849903 | 1875 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1876 | return ret; |
1877 | } | |
1878 | ||
8cf5c917 | 1879 | /** |
c8e32cc1 | 1880 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
1881 | * @dev: DRM device |
1882 | * @data: ioctl data | |
1883 | * @file_priv: DRM file info | |
1884 | * | |
c8e32cc1 DV |
1885 | * Construct a list of plane ids to return to the user. |
1886 | * | |
1887 | * Called by the user via ioctl. | |
1888 | * | |
1889 | * Returns: | |
1890 | * Zero on success, errno on failure. | |
8cf5c917 JB |
1891 | */ |
1892 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 1893 | struct drm_file *file_priv) |
8cf5c917 JB |
1894 | { |
1895 | struct drm_mode_get_plane_res *plane_resp = data; | |
1896 | struct drm_mode_config *config; | |
1897 | struct drm_plane *plane; | |
1898 | uint32_t __user *plane_ptr; | |
1899 | int copied = 0, ret = 0; | |
1900 | ||
1901 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1902 | return -EINVAL; | |
1903 | ||
84849903 | 1904 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1905 | config = &dev->mode_config; |
1906 | ||
1907 | /* | |
1908 | * This ioctl is called twice, once to determine how much space is | |
1909 | * needed, and the 2nd time to fill it. | |
1910 | */ | |
1911 | if (config->num_plane && | |
1912 | (plane_resp->count_planes >= config->num_plane)) { | |
81f6c7f8 | 1913 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
1914 | |
1915 | list_for_each_entry(plane, &config->plane_list, head) { | |
1916 | if (put_user(plane->base.id, plane_ptr + copied)) { | |
1917 | ret = -EFAULT; | |
1918 | goto out; | |
1919 | } | |
1920 | copied++; | |
1921 | } | |
1922 | } | |
1923 | plane_resp->count_planes = config->num_plane; | |
1924 | ||
1925 | out: | |
84849903 | 1926 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1927 | return ret; |
1928 | } | |
1929 | ||
1930 | /** | |
c8e32cc1 | 1931 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
1932 | * @dev: DRM device |
1933 | * @data: ioctl data | |
1934 | * @file_priv: DRM file info | |
1935 | * | |
c8e32cc1 DV |
1936 | * Construct a plane configuration structure to return to the user. |
1937 | * | |
1938 | * Called by the user via ioctl. | |
1939 | * | |
1940 | * Returns: | |
1941 | * Zero on success, errno on failure. | |
8cf5c917 JB |
1942 | */ |
1943 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 1944 | struct drm_file *file_priv) |
8cf5c917 JB |
1945 | { |
1946 | struct drm_mode_get_plane *plane_resp = data; | |
1947 | struct drm_mode_object *obj; | |
1948 | struct drm_plane *plane; | |
1949 | uint32_t __user *format_ptr; | |
1950 | int ret = 0; | |
1951 | ||
1952 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1953 | return -EINVAL; | |
1954 | ||
84849903 | 1955 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1956 | obj = drm_mode_object_find(dev, plane_resp->plane_id, |
1957 | DRM_MODE_OBJECT_PLANE); | |
1958 | if (!obj) { | |
1959 | ret = -ENOENT; | |
1960 | goto out; | |
1961 | } | |
1962 | plane = obj_to_plane(obj); | |
1963 | ||
1964 | if (plane->crtc) | |
1965 | plane_resp->crtc_id = plane->crtc->base.id; | |
1966 | else | |
1967 | plane_resp->crtc_id = 0; | |
1968 | ||
1969 | if (plane->fb) | |
1970 | plane_resp->fb_id = plane->fb->base.id; | |
1971 | else | |
1972 | plane_resp->fb_id = 0; | |
1973 | ||
1974 | plane_resp->plane_id = plane->base.id; | |
1975 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 1976 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
1977 | |
1978 | /* | |
1979 | * This ioctl is called twice, once to determine how much space is | |
1980 | * needed, and the 2nd time to fill it. | |
1981 | */ | |
1982 | if (plane->format_count && | |
1983 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 1984 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
1985 | if (copy_to_user(format_ptr, |
1986 | plane->format_types, | |
1987 | sizeof(uint32_t) * plane->format_count)) { | |
1988 | ret = -EFAULT; | |
1989 | goto out; | |
1990 | } | |
1991 | } | |
1992 | plane_resp->count_format_types = plane->format_count; | |
1993 | ||
1994 | out: | |
84849903 | 1995 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1996 | return ret; |
1997 | } | |
1998 | ||
1999 | /** | |
c8e32cc1 | 2000 | * drm_mode_setplane - configure a plane's configuration |
8cf5c917 JB |
2001 | * @dev: DRM device |
2002 | * @data: ioctl data* | |
065a50ed | 2003 | * @file_priv: DRM file info |
8cf5c917 | 2004 | * |
c8e32cc1 | 2005 | * Set plane configuration, including placement, fb, scaling, and other factors. |
8cf5c917 | 2006 | * Or pass a NULL fb to disable. |
c8e32cc1 DV |
2007 | * |
2008 | * Returns: | |
2009 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2010 | */ |
2011 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2012 | struct drm_file *file_priv) |
8cf5c917 JB |
2013 | { |
2014 | struct drm_mode_set_plane *plane_req = data; | |
2015 | struct drm_mode_object *obj; | |
2016 | struct drm_plane *plane; | |
2017 | struct drm_crtc *crtc; | |
6c2a7532 | 2018 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
8cf5c917 | 2019 | int ret = 0; |
42ef8789 | 2020 | unsigned int fb_width, fb_height; |
62443be6 | 2021 | int i; |
8cf5c917 JB |
2022 | |
2023 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2024 | return -EINVAL; | |
2025 | ||
8cf5c917 JB |
2026 | /* |
2027 | * First, find the plane, crtc, and fb objects. If not available, | |
2028 | * we don't bother to call the driver. | |
2029 | */ | |
2030 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
2031 | DRM_MODE_OBJECT_PLANE); | |
2032 | if (!obj) { | |
2033 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
2034 | plane_req->plane_id); | |
6c2a7532 | 2035 | return -ENOENT; |
8cf5c917 JB |
2036 | } |
2037 | plane = obj_to_plane(obj); | |
2038 | ||
2039 | /* No fb means shut it down */ | |
2040 | if (!plane_req->fb_id) { | |
6c2a7532 DV |
2041 | drm_modeset_lock_all(dev); |
2042 | old_fb = plane->fb; | |
8cf5c917 | 2043 | plane->funcs->disable_plane(plane); |
e5e3b44c VS |
2044 | plane->crtc = NULL; |
2045 | plane->fb = NULL; | |
6c2a7532 | 2046 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2047 | goto out; |
2048 | } | |
2049 | ||
2050 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
2051 | DRM_MODE_OBJECT_CRTC); | |
2052 | if (!obj) { | |
2053 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
2054 | plane_req->crtc_id); | |
2055 | ret = -ENOENT; | |
2056 | goto out; | |
2057 | } | |
2058 | crtc = obj_to_crtc(obj); | |
2059 | ||
786b99ed DV |
2060 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
2061 | if (!fb) { | |
8cf5c917 JB |
2062 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
2063 | plane_req->fb_id); | |
2064 | ret = -ENOENT; | |
2065 | goto out; | |
2066 | } | |
8cf5c917 | 2067 | |
62443be6 VS |
2068 | /* Check whether this plane supports the fb pixel format. */ |
2069 | for (i = 0; i < plane->format_count; i++) | |
2070 | if (fb->pixel_format == plane->format_types[i]) | |
2071 | break; | |
2072 | if (i == plane->format_count) { | |
6ba6d03e VS |
2073 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2074 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2075 | ret = -EINVAL; |
2076 | goto out; | |
2077 | } | |
2078 | ||
42ef8789 VS |
2079 | fb_width = fb->width << 16; |
2080 | fb_height = fb->height << 16; | |
2081 | ||
2082 | /* Make sure source coordinates are inside the fb. */ | |
2083 | if (plane_req->src_w > fb_width || | |
2084 | plane_req->src_x > fb_width - plane_req->src_w || | |
2085 | plane_req->src_h > fb_height || | |
2086 | plane_req->src_y > fb_height - plane_req->src_h) { | |
2087 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2088 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2089 | plane_req->src_w >> 16, | |
2090 | ((plane_req->src_w & 0xffff) * 15625) >> 10, | |
2091 | plane_req->src_h >> 16, | |
2092 | ((plane_req->src_h & 0xffff) * 15625) >> 10, | |
2093 | plane_req->src_x >> 16, | |
2094 | ((plane_req->src_x & 0xffff) * 15625) >> 10, | |
2095 | plane_req->src_y >> 16, | |
2096 | ((plane_req->src_y & 0xffff) * 15625) >> 10); | |
2097 | ret = -ENOSPC; | |
2098 | goto out; | |
2099 | } | |
2100 | ||
687a0400 VS |
2101 | /* Give drivers some help against integer overflows */ |
2102 | if (plane_req->crtc_w > INT_MAX || | |
2103 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2104 | plane_req->crtc_h > INT_MAX || | |
2105 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2106 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2107 | plane_req->crtc_w, plane_req->crtc_h, | |
2108 | plane_req->crtc_x, plane_req->crtc_y); | |
2109 | ret = -ERANGE; | |
2110 | goto out; | |
2111 | } | |
2112 | ||
6c2a7532 | 2113 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2114 | ret = plane->funcs->update_plane(plane, crtc, fb, |
2115 | plane_req->crtc_x, plane_req->crtc_y, | |
2116 | plane_req->crtc_w, plane_req->crtc_h, | |
2117 | plane_req->src_x, plane_req->src_y, | |
2118 | plane_req->src_w, plane_req->src_h); | |
2119 | if (!ret) { | |
6c2a7532 | 2120 | old_fb = plane->fb; |
8cf5c917 JB |
2121 | plane->crtc = crtc; |
2122 | plane->fb = fb; | |
35f8badc | 2123 | fb = NULL; |
8cf5c917 | 2124 | } |
6c2a7532 | 2125 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2126 | |
2127 | out: | |
6c2a7532 DV |
2128 | if (fb) |
2129 | drm_framebuffer_unreference(fb); | |
2130 | if (old_fb) | |
2131 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
2132 | |
2133 | return ret; | |
2134 | } | |
2135 | ||
2d13b679 DV |
2136 | /** |
2137 | * drm_mode_set_config_internal - helper to call ->set_config | |
2138 | * @set: modeset config to set | |
2139 | * | |
2140 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2141 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2142 | * |
2143 | * Returns: | |
2144 | * Zero on success, errno on failure. | |
2d13b679 DV |
2145 | */ |
2146 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2147 | { | |
2148 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2149 | struct drm_framebuffer *fb; |
2150 | struct drm_crtc *tmp; | |
b0d12325 DV |
2151 | int ret; |
2152 | ||
5cef29aa DV |
2153 | /* |
2154 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2155 | * connectors from it), hence we need to refcount the fbs across all | |
2156 | * crtcs. Atomic modeset will have saner semantics ... | |
2157 | */ | |
2158 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
2159 | tmp->old_fb = tmp->fb; | |
2160 | ||
b0d12325 | 2161 | fb = set->fb; |
2d13b679 | 2162 | |
b0d12325 DV |
2163 | ret = crtc->funcs->set_config(set); |
2164 | if (ret == 0) { | |
cc85e121 DV |
2165 | /* crtc->fb must be updated by ->set_config, enforces this. */ |
2166 | WARN_ON(fb != crtc->fb); | |
5cef29aa | 2167 | } |
cc85e121 | 2168 | |
5cef29aa DV |
2169 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
2170 | if (tmp->fb) | |
2171 | drm_framebuffer_reference(tmp->fb); | |
2172 | if (tmp->old_fb) | |
2173 | drm_framebuffer_unreference(tmp->old_fb); | |
b0d12325 DV |
2174 | } |
2175 | ||
2176 | return ret; | |
2d13b679 DV |
2177 | } |
2178 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2179 | ||
c11e9283 DL |
2180 | /* |
2181 | * Checks that the framebuffer is big enough for the CRTC viewport | |
2182 | * (x, y, hdisplay, vdisplay) | |
2183 | */ | |
2184 | static int drm_crtc_check_viewport(const struct drm_crtc *crtc, | |
2185 | int x, int y, | |
2186 | const struct drm_display_mode *mode, | |
2187 | const struct drm_framebuffer *fb) | |
2188 | ||
2189 | { | |
2190 | int hdisplay, vdisplay; | |
2191 | ||
2192 | hdisplay = mode->hdisplay; | |
2193 | vdisplay = mode->vdisplay; | |
2194 | ||
a0c1bbb0 DL |
2195 | if (drm_mode_is_stereo(mode)) { |
2196 | struct drm_display_mode adjusted = *mode; | |
2197 | ||
2198 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2199 | hdisplay = adjusted.crtc_hdisplay; | |
2200 | vdisplay = adjusted.crtc_vdisplay; | |
2201 | } | |
2202 | ||
c11e9283 DL |
2203 | if (crtc->invert_dimensions) |
2204 | swap(hdisplay, vdisplay); | |
2205 | ||
2206 | if (hdisplay > fb->width || | |
2207 | vdisplay > fb->height || | |
2208 | x > fb->width - hdisplay || | |
2209 | y > fb->height - vdisplay) { | |
2210 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2211 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2212 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2213 | return -ENOSPC; | |
2214 | } | |
2215 | ||
2216 | return 0; | |
2217 | } | |
2218 | ||
f453ba04 DA |
2219 | /** |
2220 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2221 | * @dev: drm device for the ioctl |
2222 | * @data: data pointer for the ioctl | |
2223 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2224 | * |
f453ba04 DA |
2225 | * Build a new CRTC configuration based on user request. |
2226 | * | |
2227 | * Called by the user via ioctl. | |
2228 | * | |
c8e32cc1 | 2229 | * Returns: |
f453ba04 DA |
2230 | * Zero on success, errno on failure. |
2231 | */ | |
2232 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2233 | struct drm_file *file_priv) | |
2234 | { | |
2235 | struct drm_mode_config *config = &dev->mode_config; | |
2236 | struct drm_mode_crtc *crtc_req = data; | |
2237 | struct drm_mode_object *obj; | |
6653cc8d | 2238 | struct drm_crtc *crtc; |
f453ba04 DA |
2239 | struct drm_connector **connector_set = NULL, *connector; |
2240 | struct drm_framebuffer *fb = NULL; | |
2241 | struct drm_display_mode *mode = NULL; | |
2242 | struct drm_mode_set set; | |
2243 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2244 | int ret; |
f453ba04 DA |
2245 | int i; |
2246 | ||
fb3b06c8 DA |
2247 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2248 | return -EINVAL; | |
2249 | ||
1d97e915 VS |
2250 | /* For some reason crtc x/y offsets are signed internally. */ |
2251 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2252 | return -ERANGE; | |
2253 | ||
84849903 | 2254 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2255 | obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
2256 | DRM_MODE_OBJECT_CRTC); | |
2257 | if (!obj) { | |
58367ed6 | 2258 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2259 | ret = -ENOENT; |
f453ba04 DA |
2260 | goto out; |
2261 | } | |
2262 | crtc = obj_to_crtc(obj); | |
9440106b | 2263 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2264 | |
2265 | if (crtc_req->mode_valid) { | |
2266 | /* If we have a mode we need a framebuffer. */ | |
2267 | /* If we pass -1, set the mode with the currently bound fb */ | |
2268 | if (crtc_req->fb_id == -1) { | |
6653cc8d VS |
2269 | if (!crtc->fb) { |
2270 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); | |
2271 | ret = -EINVAL; | |
2272 | goto out; | |
f453ba04 | 2273 | } |
6653cc8d | 2274 | fb = crtc->fb; |
b0d12325 DV |
2275 | /* Make refcounting symmetric with the lookup path. */ |
2276 | drm_framebuffer_reference(fb); | |
f453ba04 | 2277 | } else { |
786b99ed DV |
2278 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2279 | if (!fb) { | |
58367ed6 ZY |
2280 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2281 | crtc_req->fb_id); | |
37c4e705 | 2282 | ret = -ENOENT; |
f453ba04 DA |
2283 | goto out; |
2284 | } | |
f453ba04 DA |
2285 | } |
2286 | ||
2287 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2288 | if (!mode) { |
2289 | ret = -ENOMEM; | |
2290 | goto out; | |
2291 | } | |
2292 | ||
90367bf6 VS |
2293 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2294 | if (ret) { | |
2295 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2296 | goto out; | |
2297 | } | |
2298 | ||
f453ba04 | 2299 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2300 | |
c11e9283 DL |
2301 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2302 | mode, fb); | |
2303 | if (ret) | |
5f61bb42 | 2304 | goto out; |
c11e9283 | 2305 | |
f453ba04 DA |
2306 | } |
2307 | ||
2308 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2309 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2310 | ret = -EINVAL; |
2311 | goto out; | |
2312 | } | |
2313 | ||
7781de74 | 2314 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2315 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2316 | crtc_req->count_connectors); |
2317 | ret = -EINVAL; | |
2318 | goto out; | |
2319 | } | |
2320 | ||
2321 | if (crtc_req->count_connectors > 0) { | |
2322 | u32 out_id; | |
2323 | ||
2324 | /* Avoid unbounded kernel memory allocation */ | |
2325 | if (crtc_req->count_connectors > config->num_connector) { | |
2326 | ret = -EINVAL; | |
2327 | goto out; | |
2328 | } | |
2329 | ||
2330 | connector_set = kmalloc(crtc_req->count_connectors * | |
2331 | sizeof(struct drm_connector *), | |
2332 | GFP_KERNEL); | |
2333 | if (!connector_set) { | |
2334 | ret = -ENOMEM; | |
2335 | goto out; | |
2336 | } | |
2337 | ||
2338 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2339 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2340 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2341 | ret = -EFAULT; | |
2342 | goto out; | |
2343 | } | |
2344 | ||
2345 | obj = drm_mode_object_find(dev, out_id, | |
2346 | DRM_MODE_OBJECT_CONNECTOR); | |
2347 | if (!obj) { | |
58367ed6 ZY |
2348 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2349 | out_id); | |
f27657f2 | 2350 | ret = -ENOENT; |
f453ba04 DA |
2351 | goto out; |
2352 | } | |
2353 | connector = obj_to_connector(obj); | |
9440106b JG |
2354 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2355 | connector->base.id, | |
2356 | drm_get_connector_name(connector)); | |
f453ba04 DA |
2357 | |
2358 | connector_set[i] = connector; | |
2359 | } | |
2360 | } | |
2361 | ||
2362 | set.crtc = crtc; | |
2363 | set.x = crtc_req->x; | |
2364 | set.y = crtc_req->y; | |
2365 | set.mode = mode; | |
2366 | set.connectors = connector_set; | |
2367 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2368 | set.fb = fb; |
2d13b679 | 2369 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2370 | |
2371 | out: | |
b0d12325 DV |
2372 | if (fb) |
2373 | drm_framebuffer_unreference(fb); | |
2374 | ||
f453ba04 | 2375 | kfree(connector_set); |
ee34ab5b | 2376 | drm_mode_destroy(dev, mode); |
84849903 | 2377 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2378 | return ret; |
2379 | } | |
2380 | ||
4c813d4d DA |
2381 | static int drm_mode_cursor_common(struct drm_device *dev, |
2382 | struct drm_mode_cursor2 *req, | |
2383 | struct drm_file *file_priv) | |
f453ba04 | 2384 | { |
f453ba04 DA |
2385 | struct drm_mode_object *obj; |
2386 | struct drm_crtc *crtc; | |
2387 | int ret = 0; | |
2388 | ||
fb3b06c8 DA |
2389 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2390 | return -EINVAL; | |
2391 | ||
7c4eaca4 | 2392 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2393 | return -EINVAL; |
f453ba04 | 2394 | |
e0c8463a | 2395 | obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
f453ba04 | 2396 | if (!obj) { |
58367ed6 | 2397 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2398 | return -ENOENT; |
f453ba04 DA |
2399 | } |
2400 | crtc = obj_to_crtc(obj); | |
2401 | ||
dac35663 | 2402 | mutex_lock(&crtc->mutex); |
f453ba04 | 2403 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2404 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2405 | ret = -ENXIO; |
2406 | goto out; | |
2407 | } | |
2408 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2409 | if (crtc->funcs->cursor_set2) |
2410 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2411 | req->width, req->height, req->hot_x, req->hot_y); | |
2412 | else | |
2413 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2414 | req->width, req->height); | |
f453ba04 DA |
2415 | } |
2416 | ||
2417 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2418 | if (crtc->funcs->cursor_move) { | |
2419 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2420 | } else { | |
f453ba04 DA |
2421 | ret = -EFAULT; |
2422 | goto out; | |
2423 | } | |
2424 | } | |
2425 | out: | |
dac35663 DV |
2426 | mutex_unlock(&crtc->mutex); |
2427 | ||
f453ba04 | 2428 | return ret; |
4c813d4d DA |
2429 | |
2430 | } | |
c8e32cc1 DV |
2431 | |
2432 | ||
2433 | /** | |
2434 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2435 | * @dev: drm device for the ioctl | |
2436 | * @data: data pointer for the ioctl | |
2437 | * @file_priv: drm file for the ioctl call | |
2438 | * | |
2439 | * Set the cursor configuration based on user request. | |
2440 | * | |
2441 | * Called by the user via ioctl. | |
2442 | * | |
2443 | * Returns: | |
2444 | * Zero on success, errno on failure. | |
2445 | */ | |
4c813d4d | 2446 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2447 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2448 | { |
2449 | struct drm_mode_cursor *req = data; | |
2450 | struct drm_mode_cursor2 new_req; | |
2451 | ||
2452 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2453 | new_req.hot_x = new_req.hot_y = 0; | |
2454 | ||
2455 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2456 | } | |
2457 | ||
c8e32cc1 DV |
2458 | /** |
2459 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2460 | * @dev: drm device for the ioctl | |
2461 | * @data: data pointer for the ioctl | |
2462 | * @file_priv: drm file for the ioctl call | |
2463 | * | |
2464 | * Set the cursor configuration based on user request. This implements the 2nd | |
2465 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2466 | * the hotspot of the pointer. | |
2467 | * | |
2468 | * Called by the user via ioctl. | |
2469 | * | |
2470 | * Returns: | |
2471 | * Zero on success, errno on failure. | |
2472 | */ | |
4c813d4d DA |
2473 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2474 | void *data, struct drm_file *file_priv) | |
2475 | { | |
2476 | struct drm_mode_cursor2 *req = data; | |
2477 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2478 | } |
2479 | ||
c8e32cc1 DV |
2480 | /** |
2481 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2482 | * @bpp: bits per pixels | |
2483 | * @depth: bit depth per pixel | |
2484 | * | |
2485 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2486 | * Useful in fbdev emulation code, since that deals in those values. | |
2487 | */ | |
308e5bcb JB |
2488 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2489 | { | |
2490 | uint32_t fmt; | |
2491 | ||
2492 | switch (bpp) { | |
2493 | case 8: | |
d84f031b | 2494 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2495 | break; |
2496 | case 16: | |
2497 | if (depth == 15) | |
04b3924d | 2498 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2499 | else |
04b3924d | 2500 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2501 | break; |
2502 | case 24: | |
04b3924d | 2503 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2504 | break; |
2505 | case 32: | |
2506 | if (depth == 24) | |
04b3924d | 2507 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2508 | else if (depth == 30) |
04b3924d | 2509 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2510 | else |
04b3924d | 2511 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2512 | break; |
2513 | default: | |
04b3924d VS |
2514 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2515 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2516 | break; |
2517 | } | |
2518 | ||
2519 | return fmt; | |
2520 | } | |
2521 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2522 | ||
f453ba04 DA |
2523 | /** |
2524 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2525 | * @dev: drm device for the ioctl |
2526 | * @data: data pointer for the ioctl | |
2527 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2528 | * |
c8e32cc1 DV |
2529 | * Add a new FB to the specified CRTC, given a user request. This is the |
2530 | * original addfb ioclt which only supported RGB formats. | |
f453ba04 DA |
2531 | * |
2532 | * Called by the user via ioctl. | |
2533 | * | |
c8e32cc1 | 2534 | * Returns: |
f453ba04 DA |
2535 | * Zero on success, errno on failure. |
2536 | */ | |
2537 | int drm_mode_addfb(struct drm_device *dev, | |
2538 | void *data, struct drm_file *file_priv) | |
2539 | { | |
308e5bcb JB |
2540 | struct drm_mode_fb_cmd *or = data; |
2541 | struct drm_mode_fb_cmd2 r = {}; | |
2542 | struct drm_mode_config *config = &dev->mode_config; | |
2543 | struct drm_framebuffer *fb; | |
2544 | int ret = 0; | |
2545 | ||
2546 | /* Use new struct with format internally */ | |
2547 | r.fb_id = or->fb_id; | |
2548 | r.width = or->width; | |
2549 | r.height = or->height; | |
2550 | r.pitches[0] = or->pitch; | |
2551 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2552 | r.handles[0] = or->handle; | |
2553 | ||
2554 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2555 | return -EINVAL; | |
2556 | ||
acb4b992 | 2557 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2558 | return -EINVAL; |
acb4b992 JB |
2559 | |
2560 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2561 | return -EINVAL; |
308e5bcb | 2562 | |
308e5bcb JB |
2563 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2564 | if (IS_ERR(fb)) { | |
1aa1b11c | 2565 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2566 | return PTR_ERR(fb); |
308e5bcb JB |
2567 | } |
2568 | ||
4b096ac1 | 2569 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2570 | or->fb_id = fb->base.id; |
2571 | list_add(&fb->filp_head, &file_priv->fbs); | |
2572 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2573 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2574 | |
308e5bcb JB |
2575 | return ret; |
2576 | } | |
2577 | ||
cff91b62 | 2578 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2579 | { |
2580 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2581 | ||
2582 | switch (format) { | |
2583 | case DRM_FORMAT_C8: | |
2584 | case DRM_FORMAT_RGB332: | |
2585 | case DRM_FORMAT_BGR233: | |
2586 | case DRM_FORMAT_XRGB4444: | |
2587 | case DRM_FORMAT_XBGR4444: | |
2588 | case DRM_FORMAT_RGBX4444: | |
2589 | case DRM_FORMAT_BGRX4444: | |
2590 | case DRM_FORMAT_ARGB4444: | |
2591 | case DRM_FORMAT_ABGR4444: | |
2592 | case DRM_FORMAT_RGBA4444: | |
2593 | case DRM_FORMAT_BGRA4444: | |
2594 | case DRM_FORMAT_XRGB1555: | |
2595 | case DRM_FORMAT_XBGR1555: | |
2596 | case DRM_FORMAT_RGBX5551: | |
2597 | case DRM_FORMAT_BGRX5551: | |
2598 | case DRM_FORMAT_ARGB1555: | |
2599 | case DRM_FORMAT_ABGR1555: | |
2600 | case DRM_FORMAT_RGBA5551: | |
2601 | case DRM_FORMAT_BGRA5551: | |
2602 | case DRM_FORMAT_RGB565: | |
2603 | case DRM_FORMAT_BGR565: | |
2604 | case DRM_FORMAT_RGB888: | |
2605 | case DRM_FORMAT_BGR888: | |
2606 | case DRM_FORMAT_XRGB8888: | |
2607 | case DRM_FORMAT_XBGR8888: | |
2608 | case DRM_FORMAT_RGBX8888: | |
2609 | case DRM_FORMAT_BGRX8888: | |
2610 | case DRM_FORMAT_ARGB8888: | |
2611 | case DRM_FORMAT_ABGR8888: | |
2612 | case DRM_FORMAT_RGBA8888: | |
2613 | case DRM_FORMAT_BGRA8888: | |
2614 | case DRM_FORMAT_XRGB2101010: | |
2615 | case DRM_FORMAT_XBGR2101010: | |
2616 | case DRM_FORMAT_RGBX1010102: | |
2617 | case DRM_FORMAT_BGRX1010102: | |
2618 | case DRM_FORMAT_ARGB2101010: | |
2619 | case DRM_FORMAT_ABGR2101010: | |
2620 | case DRM_FORMAT_RGBA1010102: | |
2621 | case DRM_FORMAT_BGRA1010102: | |
2622 | case DRM_FORMAT_YUYV: | |
2623 | case DRM_FORMAT_YVYU: | |
2624 | case DRM_FORMAT_UYVY: | |
2625 | case DRM_FORMAT_VYUY: | |
2626 | case DRM_FORMAT_AYUV: | |
2627 | case DRM_FORMAT_NV12: | |
2628 | case DRM_FORMAT_NV21: | |
2629 | case DRM_FORMAT_NV16: | |
2630 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2631 | case DRM_FORMAT_NV24: |
2632 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2633 | case DRM_FORMAT_YUV410: |
2634 | case DRM_FORMAT_YVU410: | |
2635 | case DRM_FORMAT_YUV411: | |
2636 | case DRM_FORMAT_YVU411: | |
2637 | case DRM_FORMAT_YUV420: | |
2638 | case DRM_FORMAT_YVU420: | |
2639 | case DRM_FORMAT_YUV422: | |
2640 | case DRM_FORMAT_YVU422: | |
2641 | case DRM_FORMAT_YUV444: | |
2642 | case DRM_FORMAT_YVU444: | |
2643 | return 0; | |
2644 | default: | |
23c453a4 VS |
2645 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
2646 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
2647 | return -EINVAL; |
2648 | } | |
2649 | } | |
2650 | ||
cff91b62 | 2651 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2652 | { |
2653 | int ret, hsub, vsub, num_planes, i; | |
2654 | ||
2655 | ret = format_check(r); | |
2656 | if (ret) { | |
6ba6d03e VS |
2657 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
2658 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
2659 | return ret; |
2660 | } | |
2661 | ||
2662 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2663 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2664 | num_planes = drm_format_num_planes(r->pixel_format); | |
2665 | ||
2666 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2667 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2668 | return -EINVAL; |
2669 | } | |
2670 | ||
2671 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2672 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2673 | return -EINVAL; |
2674 | } | |
2675 | ||
2676 | for (i = 0; i < num_planes; i++) { | |
2677 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2678 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2679 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2680 | |
2681 | if (!r->handles[i]) { | |
1aa1b11c | 2682 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2683 | return -EINVAL; |
2684 | } | |
2685 | ||
b180b5d1 VS |
2686 | if ((uint64_t) width * cpp > UINT_MAX) |
2687 | return -ERANGE; | |
2688 | ||
2689 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2690 | return -ERANGE; | |
2691 | ||
2692 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2693 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2694 | return -EINVAL; |
2695 | } | |
2696 | } | |
2697 | ||
2698 | return 0; | |
2699 | } | |
2700 | ||
308e5bcb JB |
2701 | /** |
2702 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
065a50ed DV |
2703 | * @dev: drm device for the ioctl |
2704 | * @data: data pointer for the ioctl | |
2705 | * @file_priv: drm file for the ioctl call | |
308e5bcb | 2706 | * |
c8e32cc1 DV |
2707 | * Add a new FB to the specified CRTC, given a user request with format. This is |
2708 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
2709 | * and uses fourcc codes as pixel format specifiers. | |
308e5bcb JB |
2710 | * |
2711 | * Called by the user via ioctl. | |
2712 | * | |
c8e32cc1 | 2713 | * Returns: |
308e5bcb JB |
2714 | * Zero on success, errno on failure. |
2715 | */ | |
2716 | int drm_mode_addfb2(struct drm_device *dev, | |
2717 | void *data, struct drm_file *file_priv) | |
2718 | { | |
2719 | struct drm_mode_fb_cmd2 *r = data; | |
f453ba04 DA |
2720 | struct drm_mode_config *config = &dev->mode_config; |
2721 | struct drm_framebuffer *fb; | |
4a1b0714 | 2722 | int ret; |
f453ba04 | 2723 | |
fb3b06c8 DA |
2724 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2725 | return -EINVAL; | |
2726 | ||
e3cc3520 VS |
2727 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2728 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
2729 | return -EINVAL; | |
2730 | } | |
2731 | ||
f453ba04 | 2732 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2733 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2734 | r->width, config->min_width, config->max_width); |
f453ba04 DA |
2735 | return -EINVAL; |
2736 | } | |
2737 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2738 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2739 | r->height, config->min_height, config->max_height); |
f453ba04 DA |
2740 | return -EINVAL; |
2741 | } | |
2742 | ||
d1b45d5f VS |
2743 | ret = framebuffer_check(r); |
2744 | if (ret) | |
935b5977 | 2745 | return ret; |
935b5977 | 2746 | |
f453ba04 | 2747 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2748 | if (IS_ERR(fb)) { |
1aa1b11c | 2749 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2750 | return PTR_ERR(fb); |
f453ba04 DA |
2751 | } |
2752 | ||
4b096ac1 | 2753 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2754 | r->fb_id = fb->base.id; |
f453ba04 | 2755 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2756 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2757 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2758 | |
4b096ac1 | 2759 | |
f453ba04 DA |
2760 | return ret; |
2761 | } | |
2762 | ||
2763 | /** | |
2764 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2765 | * @dev: drm device for the ioctl |
2766 | * @data: data pointer for the ioctl | |
2767 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2768 | * |
f453ba04 DA |
2769 | * Remove the FB specified by the user. |
2770 | * | |
2771 | * Called by the user via ioctl. | |
2772 | * | |
c8e32cc1 | 2773 | * Returns: |
f453ba04 DA |
2774 | * Zero on success, errno on failure. |
2775 | */ | |
2776 | int drm_mode_rmfb(struct drm_device *dev, | |
2777 | void *data, struct drm_file *file_priv) | |
2778 | { | |
f453ba04 DA |
2779 | struct drm_framebuffer *fb = NULL; |
2780 | struct drm_framebuffer *fbl = NULL; | |
2781 | uint32_t *id = data; | |
f453ba04 DA |
2782 | int found = 0; |
2783 | ||
fb3b06c8 DA |
2784 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2785 | return -EINVAL; | |
2786 | ||
4b096ac1 | 2787 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2788 | mutex_lock(&dev->mode_config.fb_lock); |
2789 | fb = __drm_framebuffer_lookup(dev, *id); | |
2790 | if (!fb) | |
2791 | goto fail_lookup; | |
2792 | ||
f453ba04 DA |
2793 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2794 | if (fb == fbl) | |
2795 | found = 1; | |
2b677e8c DV |
2796 | if (!found) |
2797 | goto fail_lookup; | |
2798 | ||
2799 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2800 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2801 | |
4b096ac1 | 2802 | list_del_init(&fb->filp_head); |
2b677e8c | 2803 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2804 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2805 | |
4b096ac1 | 2806 | drm_framebuffer_remove(fb); |
4b096ac1 | 2807 | |
2b677e8c DV |
2808 | return 0; |
2809 | ||
2810 | fail_lookup: | |
2811 | mutex_unlock(&dev->mode_config.fb_lock); | |
2812 | mutex_unlock(&file_priv->fbs_lock); | |
2813 | ||
37c4e705 | 2814 | return -ENOENT; |
f453ba04 DA |
2815 | } |
2816 | ||
2817 | /** | |
2818 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2819 | * @dev: drm device for the ioctl |
2820 | * @data: data pointer for the ioctl | |
2821 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2822 | * |
f453ba04 DA |
2823 | * Lookup the FB given its ID and return info about it. |
2824 | * | |
2825 | * Called by the user via ioctl. | |
2826 | * | |
c8e32cc1 | 2827 | * Returns: |
f453ba04 DA |
2828 | * Zero on success, errno on failure. |
2829 | */ | |
2830 | int drm_mode_getfb(struct drm_device *dev, | |
2831 | void *data, struct drm_file *file_priv) | |
2832 | { | |
2833 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 2834 | struct drm_framebuffer *fb; |
58c0dca1 | 2835 | int ret; |
f453ba04 | 2836 | |
fb3b06c8 DA |
2837 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2838 | return -EINVAL; | |
2839 | ||
786b99ed | 2840 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 2841 | if (!fb) |
37c4e705 | 2842 | return -ENOENT; |
f453ba04 DA |
2843 | |
2844 | r->height = fb->height; | |
2845 | r->width = fb->width; | |
2846 | r->depth = fb->depth; | |
2847 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 2848 | r->pitch = fb->pitches[0]; |
101b96f3 | 2849 | if (fb->funcs->create_handle) { |
09f308f7 TH |
2850 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
2851 | file_priv->minor->type == DRM_MINOR_CONTROL) { | |
101b96f3 DH |
2852 | ret = fb->funcs->create_handle(fb, file_priv, |
2853 | &r->handle); | |
2854 | } else { | |
2855 | /* GET_FB() is an unprivileged ioctl so we must not | |
2856 | * return a buffer-handle to non-master processes! For | |
2857 | * backwards-compatibility reasons, we cannot make | |
2858 | * GET_FB() privileged, so just return an invalid handle | |
2859 | * for non-masters. */ | |
2860 | r->handle = 0; | |
2861 | ret = 0; | |
2862 | } | |
2863 | } else { | |
af26ef3b | 2864 | ret = -ENODEV; |
101b96f3 | 2865 | } |
f453ba04 | 2866 | |
58c0dca1 DV |
2867 | drm_framebuffer_unreference(fb); |
2868 | ||
f453ba04 DA |
2869 | return ret; |
2870 | } | |
2871 | ||
c8e32cc1 DV |
2872 | /** |
2873 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
2874 | * @dev: drm device for the ioctl | |
2875 | * @data: data pointer for the ioctl | |
2876 | * @file_priv: drm file for the ioctl call | |
2877 | * | |
2878 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
2879 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
2880 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
2881 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
2882 | * | |
2883 | * Modesetting drivers which always update the frontbuffer do not need to | |
2884 | * implement the corresponding ->dirty framebuffer callback. | |
2885 | * | |
2886 | * Called by the user via ioctl. | |
2887 | * | |
2888 | * Returns: | |
2889 | * Zero on success, errno on failure. | |
2890 | */ | |
884840aa JB |
2891 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
2892 | void *data, struct drm_file *file_priv) | |
2893 | { | |
2894 | struct drm_clip_rect __user *clips_ptr; | |
2895 | struct drm_clip_rect *clips = NULL; | |
2896 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
2897 | struct drm_framebuffer *fb; |
2898 | unsigned flags; | |
2899 | int num_clips; | |
4a1b0714 | 2900 | int ret; |
884840aa | 2901 | |
fb3b06c8 DA |
2902 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2903 | return -EINVAL; | |
2904 | ||
786b99ed | 2905 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 2906 | if (!fb) |
37c4e705 | 2907 | return -ENOENT; |
884840aa JB |
2908 | |
2909 | num_clips = r->num_clips; | |
81f6c7f8 | 2910 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
2911 | |
2912 | if (!num_clips != !clips_ptr) { | |
2913 | ret = -EINVAL; | |
2914 | goto out_err1; | |
2915 | } | |
2916 | ||
2917 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
2918 | ||
2919 | /* If userspace annotates copy, clips must come in pairs */ | |
2920 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
2921 | ret = -EINVAL; | |
2922 | goto out_err1; | |
2923 | } | |
2924 | ||
2925 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
2926 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
2927 | ret = -EINVAL; | |
2928 | goto out_err1; | |
2929 | } | |
884840aa JB |
2930 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
2931 | if (!clips) { | |
2932 | ret = -ENOMEM; | |
2933 | goto out_err1; | |
2934 | } | |
2935 | ||
2936 | ret = copy_from_user(clips, clips_ptr, | |
2937 | num_clips * sizeof(*clips)); | |
e902a358 DC |
2938 | if (ret) { |
2939 | ret = -EFAULT; | |
884840aa | 2940 | goto out_err2; |
e902a358 | 2941 | } |
884840aa JB |
2942 | } |
2943 | ||
2944 | if (fb->funcs->dirty) { | |
02b00162 TH |
2945 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
2946 | clips, num_clips); | |
884840aa JB |
2947 | } else { |
2948 | ret = -ENOSYS; | |
884840aa JB |
2949 | } |
2950 | ||
2951 | out_err2: | |
2952 | kfree(clips); | |
2953 | out_err1: | |
4ccf097f DV |
2954 | drm_framebuffer_unreference(fb); |
2955 | ||
884840aa JB |
2956 | return ret; |
2957 | } | |
2958 | ||
2959 | ||
f453ba04 DA |
2960 | /** |
2961 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 2962 | * @priv: drm file for the ioctl |
f453ba04 | 2963 | * |
f453ba04 DA |
2964 | * Destroy all the FBs associated with @filp. |
2965 | * | |
2966 | * Called by the user via ioctl. | |
2967 | * | |
c8e32cc1 | 2968 | * Returns: |
f453ba04 DA |
2969 | * Zero on success, errno on failure. |
2970 | */ | |
ea39f835 | 2971 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 2972 | { |
f453ba04 DA |
2973 | struct drm_device *dev = priv->minor->dev; |
2974 | struct drm_framebuffer *fb, *tfb; | |
2975 | ||
4b096ac1 | 2976 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 2977 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
2978 | |
2979 | mutex_lock(&dev->mode_config.fb_lock); | |
2980 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2981 | __drm_framebuffer_unregister(dev, fb); | |
2982 | mutex_unlock(&dev->mode_config.fb_lock); | |
2983 | ||
4b096ac1 | 2984 | list_del_init(&fb->filp_head); |
2b677e8c DV |
2985 | |
2986 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 2987 | drm_framebuffer_remove(fb); |
f453ba04 | 2988 | } |
4b096ac1 | 2989 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
2990 | } |
2991 | ||
c8e32cc1 DV |
2992 | /** |
2993 | * drm_property_create - create a new property type | |
2994 | * @dev: drm device | |
2995 | * @flags: flags specifying the property type | |
2996 | * @name: name of the property | |
2997 | * @num_values: number of pre-defined values | |
2998 | * | |
2999 | * This creates a new generic drm property which can then be attached to a drm | |
3000 | * object with drm_object_attach_property. The returned property object must be | |
3001 | * freed with drm_property_destroy. | |
3002 | * | |
3003 | * Returns: | |
3004 | * A pointer to the newly created property on success, NULL on failure. | |
3005 | */ | |
f453ba04 DA |
3006 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3007 | const char *name, int num_values) | |
3008 | { | |
3009 | struct drm_property *property = NULL; | |
6bfc56aa | 3010 | int ret; |
f453ba04 DA |
3011 | |
3012 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3013 | if (!property) | |
3014 | return NULL; | |
3015 | ||
3016 | if (num_values) { | |
3017 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3018 | if (!property->values) | |
3019 | goto fail; | |
3020 | } | |
3021 | ||
6bfc56aa VS |
3022 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3023 | if (ret) | |
3024 | goto fail; | |
3025 | ||
f453ba04 DA |
3026 | property->flags = flags; |
3027 | property->num_values = num_values; | |
3028 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3029 | ||
471dd2ef | 3030 | if (name) { |
f453ba04 | 3031 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3032 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3033 | } | |
f453ba04 DA |
3034 | |
3035 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
3036 | return property; | |
3037 | fail: | |
6bfc56aa | 3038 | kfree(property->values); |
f453ba04 DA |
3039 | kfree(property); |
3040 | return NULL; | |
3041 | } | |
3042 | EXPORT_SYMBOL(drm_property_create); | |
3043 | ||
c8e32cc1 DV |
3044 | /** |
3045 | * drm_property_create - create a new enumeration property type | |
3046 | * @dev: drm device | |
3047 | * @flags: flags specifying the property type | |
3048 | * @name: name of the property | |
3049 | * @props: enumeration lists with property values | |
3050 | * @num_values: number of pre-defined values | |
3051 | * | |
3052 | * This creates a new generic drm property which can then be attached to a drm | |
3053 | * object with drm_object_attach_property. The returned property object must be | |
3054 | * freed with drm_property_destroy. | |
3055 | * | |
3056 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3057 | * properties. | |
3058 | * | |
3059 | * Returns: | |
3060 | * A pointer to the newly created property on success, NULL on failure. | |
3061 | */ | |
4a67d391 SH |
3062 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3063 | const char *name, | |
3064 | const struct drm_prop_enum_list *props, | |
3065 | int num_values) | |
3066 | { | |
3067 | struct drm_property *property; | |
3068 | int i, ret; | |
3069 | ||
3070 | flags |= DRM_MODE_PROP_ENUM; | |
3071 | ||
3072 | property = drm_property_create(dev, flags, name, num_values); | |
3073 | if (!property) | |
3074 | return NULL; | |
3075 | ||
3076 | for (i = 0; i < num_values; i++) { | |
3077 | ret = drm_property_add_enum(property, i, | |
3078 | props[i].type, | |
3079 | props[i].name); | |
3080 | if (ret) { | |
3081 | drm_property_destroy(dev, property); | |
3082 | return NULL; | |
3083 | } | |
3084 | } | |
3085 | ||
3086 | return property; | |
3087 | } | |
3088 | EXPORT_SYMBOL(drm_property_create_enum); | |
3089 | ||
c8e32cc1 DV |
3090 | /** |
3091 | * drm_property_create - create a new bitmask property type | |
3092 | * @dev: drm device | |
3093 | * @flags: flags specifying the property type | |
3094 | * @name: name of the property | |
3095 | * @props: enumeration lists with property bitflags | |
3096 | * @num_values: number of pre-defined values | |
3097 | * | |
3098 | * This creates a new generic drm property which can then be attached to a drm | |
3099 | * object with drm_object_attach_property. The returned property object must be | |
3100 | * freed with drm_property_destroy. | |
3101 | * | |
3102 | * Compared to plain enumeration properties userspace is allowed to set any | |
3103 | * or'ed together combination of the predefined property bitflag values | |
3104 | * | |
3105 | * Returns: | |
3106 | * A pointer to the newly created property on success, NULL on failure. | |
3107 | */ | |
49e27545 RC |
3108 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3109 | int flags, const char *name, | |
3110 | const struct drm_prop_enum_list *props, | |
3111 | int num_values) | |
3112 | { | |
3113 | struct drm_property *property; | |
3114 | int i, ret; | |
3115 | ||
3116 | flags |= DRM_MODE_PROP_BITMASK; | |
3117 | ||
3118 | property = drm_property_create(dev, flags, name, num_values); | |
3119 | if (!property) | |
3120 | return NULL; | |
3121 | ||
3122 | for (i = 0; i < num_values; i++) { | |
3123 | ret = drm_property_add_enum(property, i, | |
3124 | props[i].type, | |
3125 | props[i].name); | |
3126 | if (ret) { | |
3127 | drm_property_destroy(dev, property); | |
3128 | return NULL; | |
3129 | } | |
3130 | } | |
3131 | ||
3132 | return property; | |
3133 | } | |
3134 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3135 | ||
c8e32cc1 DV |
3136 | /** |
3137 | * drm_property_create - create a new ranged property type | |
3138 | * @dev: drm device | |
3139 | * @flags: flags specifying the property type | |
3140 | * @name: name of the property | |
3141 | * @min: minimum value of the property | |
3142 | * @max: maximum value of the property | |
3143 | * | |
3144 | * This creates a new generic drm property which can then be attached to a drm | |
3145 | * object with drm_object_attach_property. The returned property object must be | |
3146 | * freed with drm_property_destroy. | |
3147 | * | |
3148 | * Userspace is allowed to set any interger value in the (min, max) range | |
3149 | * inclusive. | |
3150 | * | |
3151 | * Returns: | |
3152 | * A pointer to the newly created property on success, NULL on failure. | |
3153 | */ | |
d9bc3c02 SH |
3154 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3155 | const char *name, | |
3156 | uint64_t min, uint64_t max) | |
3157 | { | |
3158 | struct drm_property *property; | |
3159 | ||
3160 | flags |= DRM_MODE_PROP_RANGE; | |
3161 | ||
3162 | property = drm_property_create(dev, flags, name, 2); | |
3163 | if (!property) | |
3164 | return NULL; | |
3165 | ||
3166 | property->values[0] = min; | |
3167 | property->values[1] = max; | |
3168 | ||
3169 | return property; | |
3170 | } | |
3171 | EXPORT_SYMBOL(drm_property_create_range); | |
3172 | ||
c8e32cc1 DV |
3173 | /** |
3174 | * drm_property_add_enum - add a possible value to an enumeration property | |
3175 | * @property: enumeration property to change | |
3176 | * @index: index of the new enumeration | |
3177 | * @value: value of the new enumeration | |
3178 | * @name: symbolic name of the new enumeration | |
3179 | * | |
3180 | * This functions adds enumerations to a property. | |
3181 | * | |
3182 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3183 | * to directly create the property with all enumerations already attached. | |
3184 | * | |
3185 | * Returns: | |
3186 | * Zero on success, error code on failure. | |
3187 | */ | |
f453ba04 DA |
3188 | int drm_property_add_enum(struct drm_property *property, int index, |
3189 | uint64_t value, const char *name) | |
3190 | { | |
3191 | struct drm_property_enum *prop_enum; | |
3192 | ||
49e27545 RC |
3193 | if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) |
3194 | return -EINVAL; | |
3195 | ||
3196 | /* | |
3197 | * Bitmask enum properties have the additional constraint of values | |
3198 | * from 0 to 63 | |
3199 | */ | |
3200 | if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) | |
f453ba04 DA |
3201 | return -EINVAL; |
3202 | ||
3203 | if (!list_empty(&property->enum_blob_list)) { | |
3204 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3205 | if (prop_enum->value == value) { | |
3206 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3207 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3208 | return 0; | |
3209 | } | |
3210 | } | |
3211 | } | |
3212 | ||
3213 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3214 | if (!prop_enum) | |
3215 | return -ENOMEM; | |
3216 | ||
3217 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3218 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3219 | prop_enum->value = value; | |
3220 | ||
3221 | property->values[index] = value; | |
3222 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3223 | return 0; | |
3224 | } | |
3225 | EXPORT_SYMBOL(drm_property_add_enum); | |
3226 | ||
c8e32cc1 DV |
3227 | /** |
3228 | * drm_property_destroy - destroy a drm property | |
3229 | * @dev: drm device | |
3230 | * @property: property to destry | |
3231 | * | |
3232 | * This function frees a property including any attached resources like | |
3233 | * enumeration values. | |
3234 | */ | |
f453ba04 DA |
3235 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3236 | { | |
3237 | struct drm_property_enum *prop_enum, *pt; | |
3238 | ||
3239 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3240 | list_del(&prop_enum->head); | |
3241 | kfree(prop_enum); | |
3242 | } | |
3243 | ||
3244 | if (property->num_values) | |
3245 | kfree(property->values); | |
3246 | drm_mode_object_put(dev, &property->base); | |
3247 | list_del(&property->head); | |
3248 | kfree(property); | |
3249 | } | |
3250 | EXPORT_SYMBOL(drm_property_destroy); | |
3251 | ||
c8e32cc1 DV |
3252 | /** |
3253 | * drm_object_attach_property - attach a property to a modeset object | |
3254 | * @obj: drm modeset object | |
3255 | * @property: property to attach | |
3256 | * @init_val: initial value of the property | |
3257 | * | |
3258 | * This attaches the given property to the modeset object with the given initial | |
3259 | * value. Currently this function cannot fail since the properties are stored in | |
3260 | * a statically sized array. | |
3261 | */ | |
c543188a PZ |
3262 | void drm_object_attach_property(struct drm_mode_object *obj, |
3263 | struct drm_property *property, | |
3264 | uint64_t init_val) | |
3265 | { | |
7f88a9be | 3266 | int count = obj->properties->count; |
c543188a | 3267 | |
7f88a9be PZ |
3268 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3269 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3270 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3271 | "you see this message on the same object type.\n", | |
3272 | obj->type); | |
3273 | return; | |
c543188a PZ |
3274 | } |
3275 | ||
7f88a9be PZ |
3276 | obj->properties->ids[count] = property->base.id; |
3277 | obj->properties->values[count] = init_val; | |
3278 | obj->properties->count++; | |
c543188a PZ |
3279 | } |
3280 | EXPORT_SYMBOL(drm_object_attach_property); | |
3281 | ||
c8e32cc1 DV |
3282 | /** |
3283 | * drm_object_property_set_value - set the value of a property | |
3284 | * @obj: drm mode object to set property value for | |
3285 | * @property: property to set | |
3286 | * @val: value the property should be set to | |
3287 | * | |
3288 | * This functions sets a given property on a given object. This function only | |
3289 | * changes the software state of the property, it does not call into the | |
3290 | * driver's ->set_property callback. | |
3291 | * | |
3292 | * Returns: | |
3293 | * Zero on success, error code on failure. | |
3294 | */ | |
c543188a PZ |
3295 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3296 | struct drm_property *property, uint64_t val) | |
3297 | { | |
3298 | int i; | |
3299 | ||
7f88a9be | 3300 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3301 | if (obj->properties->ids[i] == property->base.id) { |
3302 | obj->properties->values[i] = val; | |
3303 | return 0; | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | return -EINVAL; | |
3308 | } | |
3309 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3310 | ||
c8e32cc1 DV |
3311 | /** |
3312 | * drm_object_property_get_value - retrieve the value of a property | |
3313 | * @obj: drm mode object to get property value from | |
3314 | * @property: property to retrieve | |
3315 | * @val: storage for the property value | |
3316 | * | |
3317 | * This function retrieves the softare state of the given property for the given | |
3318 | * property. Since there is no driver callback to retrieve the current property | |
3319 | * value this might be out of sync with the hardware, depending upon the driver | |
3320 | * and property. | |
3321 | * | |
3322 | * Returns: | |
3323 | * Zero on success, error code on failure. | |
3324 | */ | |
c543188a PZ |
3325 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3326 | struct drm_property *property, uint64_t *val) | |
3327 | { | |
3328 | int i; | |
3329 | ||
7f88a9be | 3330 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3331 | if (obj->properties->ids[i] == property->base.id) { |
3332 | *val = obj->properties->values[i]; | |
3333 | return 0; | |
3334 | } | |
3335 | } | |
3336 | ||
3337 | return -EINVAL; | |
3338 | } | |
3339 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3340 | ||
c8e32cc1 DV |
3341 | /** |
3342 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3343 | * @dev: DRM device | |
3344 | * @data: ioctl data | |
3345 | * @file_priv: DRM file info | |
3346 | * | |
3347 | * This function retrieves the current value for an connectors's property. | |
3348 | * | |
3349 | * Called by the user via ioctl. | |
3350 | * | |
3351 | * Returns: | |
3352 | * Zero on success, errno on failure. | |
3353 | */ | |
f453ba04 DA |
3354 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3355 | void *data, struct drm_file *file_priv) | |
3356 | { | |
3357 | struct drm_mode_object *obj; | |
3358 | struct drm_mode_get_property *out_resp = data; | |
3359 | struct drm_property *property; | |
3360 | int enum_count = 0; | |
3361 | int blob_count = 0; | |
3362 | int value_count = 0; | |
3363 | int ret = 0, i; | |
3364 | int copied; | |
3365 | struct drm_property_enum *prop_enum; | |
3366 | struct drm_mode_property_enum __user *enum_ptr; | |
3367 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3368 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3369 | uint64_t __user *values_ptr; |
3370 | uint32_t __user *blob_length_ptr; | |
3371 | ||
fb3b06c8 DA |
3372 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3373 | return -EINVAL; | |
3374 | ||
84849903 | 3375 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3376 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
3377 | if (!obj) { | |
f27657f2 | 3378 | ret = -ENOENT; |
f453ba04 DA |
3379 | goto done; |
3380 | } | |
3381 | property = obj_to_property(obj); | |
3382 | ||
49e27545 | 3383 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3384 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3385 | enum_count++; | |
3386 | } else if (property->flags & DRM_MODE_PROP_BLOB) { | |
3387 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) | |
3388 | blob_count++; | |
3389 | } | |
3390 | ||
3391 | value_count = property->num_values; | |
3392 | ||
3393 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3394 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3395 | out_resp->flags = property->flags; | |
3396 | ||
3397 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3398 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3399 | for (i = 0; i < value_count; i++) { |
3400 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3401 | ret = -EFAULT; | |
3402 | goto done; | |
3403 | } | |
3404 | } | |
3405 | } | |
3406 | out_resp->count_values = value_count; | |
3407 | ||
49e27545 | 3408 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3409 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3410 | copied = 0; | |
81f6c7f8 | 3411 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3412 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3413 | ||
3414 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3415 | ret = -EFAULT; | |
3416 | goto done; | |
3417 | } | |
3418 | ||
3419 | if (copy_to_user(&enum_ptr[copied].name, | |
3420 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3421 | ret = -EFAULT; | |
3422 | goto done; | |
3423 | } | |
3424 | copied++; | |
3425 | } | |
3426 | } | |
3427 | out_resp->count_enum_blobs = enum_count; | |
3428 | } | |
3429 | ||
3430 | if (property->flags & DRM_MODE_PROP_BLOB) { | |
3431 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { | |
3432 | copied = 0; | |
81f6c7f8 VS |
3433 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3434 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3435 | |
3436 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3437 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3438 | ret = -EFAULT; | |
3439 | goto done; | |
3440 | } | |
3441 | ||
3442 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3443 | ret = -EFAULT; | |
3444 | goto done; | |
3445 | } | |
3446 | ||
3447 | copied++; | |
3448 | } | |
3449 | } | |
3450 | out_resp->count_enum_blobs = blob_count; | |
3451 | } | |
3452 | done: | |
84849903 | 3453 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3454 | return ret; |
3455 | } | |
3456 | ||
3457 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3458 | void *data) | |
3459 | { | |
3460 | struct drm_property_blob *blob; | |
6bfc56aa | 3461 | int ret; |
f453ba04 DA |
3462 | |
3463 | if (!length || !data) | |
3464 | return NULL; | |
3465 | ||
3466 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3467 | if (!blob) | |
3468 | return NULL; | |
3469 | ||
6bfc56aa VS |
3470 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3471 | if (ret) { | |
3472 | kfree(blob); | |
3473 | return NULL; | |
3474 | } | |
3475 | ||
f453ba04 DA |
3476 | blob->length = length; |
3477 | ||
3478 | memcpy(blob->data, data, length); | |
3479 | ||
f453ba04 DA |
3480 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3481 | return blob; | |
3482 | } | |
3483 | ||
3484 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3485 | struct drm_property_blob *blob) | |
3486 | { | |
3487 | drm_mode_object_put(dev, &blob->base); | |
3488 | list_del(&blob->head); | |
3489 | kfree(blob); | |
3490 | } | |
3491 | ||
c8e32cc1 DV |
3492 | /** |
3493 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3494 | * @dev: DRM device | |
3495 | * @data: ioctl data | |
3496 | * @file_priv: DRM file info | |
3497 | * | |
3498 | * This function retrieves the contents of a blob property. The value stored in | |
3499 | * an object's blob property is just a normal modeset object id. | |
3500 | * | |
3501 | * Called by the user via ioctl. | |
3502 | * | |
3503 | * Returns: | |
3504 | * Zero on success, errno on failure. | |
3505 | */ | |
f453ba04 DA |
3506 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3507 | void *data, struct drm_file *file_priv) | |
3508 | { | |
3509 | struct drm_mode_object *obj; | |
3510 | struct drm_mode_get_blob *out_resp = data; | |
3511 | struct drm_property_blob *blob; | |
3512 | int ret = 0; | |
81f6c7f8 | 3513 | void __user *blob_ptr; |
f453ba04 | 3514 | |
fb3b06c8 DA |
3515 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3516 | return -EINVAL; | |
3517 | ||
84849903 | 3518 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3519 | obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
3520 | if (!obj) { | |
f27657f2 | 3521 | ret = -ENOENT; |
f453ba04 DA |
3522 | goto done; |
3523 | } | |
3524 | blob = obj_to_blob(obj); | |
3525 | ||
3526 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3527 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3528 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3529 | ret = -EFAULT; | |
3530 | goto done; | |
3531 | } | |
3532 | } | |
3533 | out_resp->length = blob->length; | |
3534 | ||
3535 | done: | |
84849903 | 3536 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3537 | return ret; |
3538 | } | |
3539 | ||
c8e32cc1 DV |
3540 | /** |
3541 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
3542 | * @connector: drm connector | |
3543 | * @edid: new value of the edid property | |
3544 | * | |
3545 | * This function creates a new blob modeset object and assigns its id to the | |
3546 | * connector's edid property. | |
3547 | * | |
3548 | * Returns: | |
3549 | * Zero on success, errno on failure. | |
3550 | */ | |
f453ba04 DA |
3551 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
3552 | struct edid *edid) | |
3553 | { | |
3554 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3555 | int ret, size; |
f453ba04 DA |
3556 | |
3557 | if (connector->edid_blob_ptr) | |
3558 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3559 | ||
3560 | /* Delete edid, when there is none. */ | |
3561 | if (!edid) { | |
3562 | connector->edid_blob_ptr = NULL; | |
58495563 | 3563 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3564 | return ret; |
3565 | } | |
3566 | ||
7466f4cc AJ |
3567 | size = EDID_LENGTH * (1 + edid->extensions); |
3568 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3569 | size, edid); | |
e655d122 SK |
3570 | if (!connector->edid_blob_ptr) |
3571 | return -EINVAL; | |
f453ba04 | 3572 | |
58495563 | 3573 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3574 | dev->mode_config.edid_property, |
3575 | connector->edid_blob_ptr->base.id); | |
3576 | ||
3577 | return ret; | |
3578 | } | |
3579 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3580 | ||
26a34815 | 3581 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3582 | uint64_t value) |
26a34815 PZ |
3583 | { |
3584 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3585 | return false; | |
3586 | if (property->flags & DRM_MODE_PROP_RANGE) { | |
3587 | if (value < property->values[0] || value > property->values[1]) | |
3588 | return false; | |
3589 | return true; | |
49e27545 RC |
3590 | } else if (property->flags & DRM_MODE_PROP_BITMASK) { |
3591 | int i; | |
592c20ee | 3592 | uint64_t valid_mask = 0; |
49e27545 RC |
3593 | for (i = 0; i < property->num_values; i++) |
3594 | valid_mask |= (1ULL << property->values[i]); | |
3595 | return !(value & ~valid_mask); | |
c4a56750 VS |
3596 | } else if (property->flags & DRM_MODE_PROP_BLOB) { |
3597 | /* Only the driver knows */ | |
3598 | return true; | |
26a34815 PZ |
3599 | } else { |
3600 | int i; | |
3601 | for (i = 0; i < property->num_values; i++) | |
3602 | if (property->values[i] == value) | |
3603 | return true; | |
3604 | return false; | |
3605 | } | |
3606 | } | |
3607 | ||
c8e32cc1 DV |
3608 | /** |
3609 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
3610 | * @dev: DRM device | |
3611 | * @data: ioctl data | |
3612 | * @file_priv: DRM file info | |
3613 | * | |
3614 | * This function sets the current value for a connectors's property. It also | |
3615 | * calls into a driver's ->set_property callback to update the hardware state | |
3616 | * | |
3617 | * Called by the user via ioctl. | |
3618 | * | |
3619 | * Returns: | |
3620 | * Zero on success, errno on failure. | |
3621 | */ | |
f453ba04 DA |
3622 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3623 | void *data, struct drm_file *file_priv) | |
3624 | { | |
0057d8dd PZ |
3625 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3626 | struct drm_mode_obj_set_property obj_set_prop = { | |
3627 | .value = conn_set_prop->value, | |
3628 | .prop_id = conn_set_prop->prop_id, | |
3629 | .obj_id = conn_set_prop->connector_id, | |
3630 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3631 | }; | |
fb3b06c8 | 3632 | |
0057d8dd PZ |
3633 | /* It does all the locking and checking we need */ |
3634 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3635 | } |
3636 | ||
c543188a PZ |
3637 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3638 | struct drm_property *property, | |
3639 | uint64_t value) | |
3640 | { | |
3641 | int ret = -EINVAL; | |
3642 | struct drm_connector *connector = obj_to_connector(obj); | |
3643 | ||
3644 | /* Do DPMS ourselves */ | |
3645 | if (property == connector->dev->mode_config.dpms_property) { | |
3646 | if (connector->funcs->dpms) | |
3647 | (*connector->funcs->dpms)(connector, (int)value); | |
3648 | ret = 0; | |
3649 | } else if (connector->funcs->set_property) | |
3650 | ret = connector->funcs->set_property(connector, property, value); | |
3651 | ||
3652 | /* store the property value if successful */ | |
3653 | if (!ret) | |
58495563 | 3654 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3655 | return ret; |
3656 | } | |
3657 | ||
bffd9de0 PZ |
3658 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3659 | struct drm_property *property, | |
3660 | uint64_t value) | |
3661 | { | |
3662 | int ret = -EINVAL; | |
3663 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3664 | ||
3665 | if (crtc->funcs->set_property) | |
3666 | ret = crtc->funcs->set_property(crtc, property, value); | |
3667 | if (!ret) | |
3668 | drm_object_property_set_value(obj, property, value); | |
3669 | ||
3670 | return ret; | |
3671 | } | |
3672 | ||
4d93914a RC |
3673 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3674 | struct drm_property *property, | |
3675 | uint64_t value) | |
3676 | { | |
3677 | int ret = -EINVAL; | |
3678 | struct drm_plane *plane = obj_to_plane(obj); | |
3679 | ||
3680 | if (plane->funcs->set_property) | |
3681 | ret = plane->funcs->set_property(plane, property, value); | |
3682 | if (!ret) | |
3683 | drm_object_property_set_value(obj, property, value); | |
3684 | ||
3685 | return ret; | |
3686 | } | |
3687 | ||
c8e32cc1 DV |
3688 | /** |
3689 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
3690 | * @dev: DRM device | |
3691 | * @data: ioctl data | |
3692 | * @file_priv: DRM file info | |
3693 | * | |
3694 | * This function retrieves the current value for an object's property. Compared | |
3695 | * to the connector specific ioctl this one is extended to also work on crtc and | |
3696 | * plane objects. | |
3697 | * | |
3698 | * Called by the user via ioctl. | |
3699 | * | |
3700 | * Returns: | |
3701 | * Zero on success, errno on failure. | |
3702 | */ | |
c543188a PZ |
3703 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3704 | struct drm_file *file_priv) | |
3705 | { | |
3706 | struct drm_mode_obj_get_properties *arg = data; | |
3707 | struct drm_mode_object *obj; | |
3708 | int ret = 0; | |
3709 | int i; | |
3710 | int copied = 0; | |
3711 | int props_count = 0; | |
3712 | uint32_t __user *props_ptr; | |
3713 | uint64_t __user *prop_values_ptr; | |
3714 | ||
3715 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3716 | return -EINVAL; | |
3717 | ||
84849903 | 3718 | drm_modeset_lock_all(dev); |
c543188a PZ |
3719 | |
3720 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3721 | if (!obj) { | |
f27657f2 | 3722 | ret = -ENOENT; |
c543188a PZ |
3723 | goto out; |
3724 | } | |
3725 | if (!obj->properties) { | |
3726 | ret = -EINVAL; | |
3727 | goto out; | |
3728 | } | |
3729 | ||
7f88a9be | 3730 | props_count = obj->properties->count; |
c543188a PZ |
3731 | |
3732 | /* This ioctl is called twice, once to determine how much space is | |
3733 | * needed, and the 2nd time to fill it. */ | |
3734 | if ((arg->count_props >= props_count) && props_count) { | |
3735 | copied = 0; | |
3736 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3737 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3738 | (arg->prop_values_ptr); | |
3739 | for (i = 0; i < props_count; i++) { | |
3740 | if (put_user(obj->properties->ids[i], | |
3741 | props_ptr + copied)) { | |
3742 | ret = -EFAULT; | |
3743 | goto out; | |
3744 | } | |
3745 | if (put_user(obj->properties->values[i], | |
3746 | prop_values_ptr + copied)) { | |
3747 | ret = -EFAULT; | |
3748 | goto out; | |
3749 | } | |
3750 | copied++; | |
3751 | } | |
3752 | } | |
3753 | arg->count_props = props_count; | |
3754 | out: | |
84849903 | 3755 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3756 | return ret; |
3757 | } | |
3758 | ||
c8e32cc1 DV |
3759 | /** |
3760 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
3761 | * @dev: DRM device | |
3762 | * @data: ioctl data | |
3763 | * @file_priv: DRM file info | |
3764 | * | |
3765 | * This function sets the current value for an object's property. It also calls | |
3766 | * into a driver's ->set_property callback to update the hardware state. | |
3767 | * Compared to the connector specific ioctl this one is extended to also work on | |
3768 | * crtc and plane objects. | |
3769 | * | |
3770 | * Called by the user via ioctl. | |
3771 | * | |
3772 | * Returns: | |
3773 | * Zero on success, errno on failure. | |
3774 | */ | |
c543188a PZ |
3775 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
3776 | struct drm_file *file_priv) | |
3777 | { | |
3778 | struct drm_mode_obj_set_property *arg = data; | |
3779 | struct drm_mode_object *arg_obj; | |
3780 | struct drm_mode_object *prop_obj; | |
3781 | struct drm_property *property; | |
3782 | int ret = -EINVAL; | |
3783 | int i; | |
3784 | ||
3785 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3786 | return -EINVAL; | |
3787 | ||
84849903 | 3788 | drm_modeset_lock_all(dev); |
c543188a PZ |
3789 | |
3790 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
3791 | if (!arg_obj) { |
3792 | ret = -ENOENT; | |
c543188a | 3793 | goto out; |
f27657f2 | 3794 | } |
c543188a PZ |
3795 | if (!arg_obj->properties) |
3796 | goto out; | |
3797 | ||
7f88a9be | 3798 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
3799 | if (arg_obj->properties->ids[i] == arg->prop_id) |
3800 | break; | |
3801 | ||
7f88a9be | 3802 | if (i == arg_obj->properties->count) |
c543188a PZ |
3803 | goto out; |
3804 | ||
3805 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
3806 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
3807 | if (!prop_obj) { |
3808 | ret = -ENOENT; | |
c543188a | 3809 | goto out; |
f27657f2 | 3810 | } |
c543188a PZ |
3811 | property = obj_to_property(prop_obj); |
3812 | ||
3813 | if (!drm_property_change_is_valid(property, arg->value)) | |
3814 | goto out; | |
3815 | ||
3816 | switch (arg_obj->type) { | |
3817 | case DRM_MODE_OBJECT_CONNECTOR: | |
3818 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
3819 | arg->value); | |
3820 | break; | |
bffd9de0 PZ |
3821 | case DRM_MODE_OBJECT_CRTC: |
3822 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
3823 | break; | |
4d93914a RC |
3824 | case DRM_MODE_OBJECT_PLANE: |
3825 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
3826 | break; | |
c543188a PZ |
3827 | } |
3828 | ||
3829 | out: | |
84849903 | 3830 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3831 | return ret; |
3832 | } | |
3833 | ||
c8e32cc1 DV |
3834 | /** |
3835 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
3836 | * @connector: connector to attach | |
3837 | * @encoder: encoder to attach @connector to | |
3838 | * | |
3839 | * This function links up a connector to an encoder. Note that the routing | |
3840 | * restrictions between encoders and crtcs are exposed to userspace through the | |
3841 | * possible_clones and possible_crtcs bitmasks. | |
3842 | * | |
3843 | * Returns: | |
3844 | * Zero on success, errno on failure. | |
3845 | */ | |
f453ba04 DA |
3846 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
3847 | struct drm_encoder *encoder) | |
3848 | { | |
3849 | int i; | |
3850 | ||
3851 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3852 | if (connector->encoder_ids[i] == 0) { | |
3853 | connector->encoder_ids[i] = encoder->base.id; | |
3854 | return 0; | |
3855 | } | |
3856 | } | |
3857 | return -ENOMEM; | |
3858 | } | |
3859 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
3860 | ||
c8e32cc1 DV |
3861 | /** |
3862 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
3863 | * @crtc: CRTC to set the gamma table size for | |
3864 | * @gamma_size: size of the gamma table | |
3865 | * | |
3866 | * Drivers which support gamma tables should set this to the supported gamma | |
3867 | * table size when initializing the CRTC. Currently the drm core only supports a | |
3868 | * fixed gamma table size. | |
3869 | * | |
3870 | * Returns: | |
3871 | * Zero on success, errno on failure. | |
3872 | */ | |
4cae5b84 | 3873 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 3874 | int gamma_size) |
f453ba04 DA |
3875 | { |
3876 | crtc->gamma_size = gamma_size; | |
3877 | ||
3878 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
3879 | if (!crtc->gamma_store) { | |
3880 | crtc->gamma_size = 0; | |
4cae5b84 | 3881 | return -ENOMEM; |
f453ba04 DA |
3882 | } |
3883 | ||
4cae5b84 | 3884 | return 0; |
f453ba04 DA |
3885 | } |
3886 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
3887 | ||
c8e32cc1 DV |
3888 | /** |
3889 | * drm_mode_gamma_set_ioctl - set the gamma table | |
3890 | * @dev: DRM device | |
3891 | * @data: ioctl data | |
3892 | * @file_priv: DRM file info | |
3893 | * | |
3894 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
3895 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
3896 | * | |
3897 | * Called by the user via ioctl. | |
3898 | * | |
3899 | * Returns: | |
3900 | * Zero on success, errno on failure. | |
3901 | */ | |
f453ba04 DA |
3902 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
3903 | void *data, struct drm_file *file_priv) | |
3904 | { | |
3905 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3906 | struct drm_mode_object *obj; | |
3907 | struct drm_crtc *crtc; | |
3908 | void *r_base, *g_base, *b_base; | |
3909 | int size; | |
3910 | int ret = 0; | |
3911 | ||
fb3b06c8 DA |
3912 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3913 | return -EINVAL; | |
3914 | ||
84849903 | 3915 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3916 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
3917 | if (!obj) { | |
f27657f2 | 3918 | ret = -ENOENT; |
f453ba04 DA |
3919 | goto out; |
3920 | } | |
3921 | crtc = obj_to_crtc(obj); | |
3922 | ||
ebe0f244 LP |
3923 | if (crtc->funcs->gamma_set == NULL) { |
3924 | ret = -ENOSYS; | |
3925 | goto out; | |
3926 | } | |
3927 | ||
f453ba04 DA |
3928 | /* memcpy into gamma store */ |
3929 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
3930 | ret = -EINVAL; | |
3931 | goto out; | |
3932 | } | |
3933 | ||
3934 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
3935 | r_base = crtc->gamma_store; | |
3936 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
3937 | ret = -EFAULT; | |
3938 | goto out; | |
3939 | } | |
3940 | ||
3941 | g_base = r_base + size; | |
3942 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
3943 | ret = -EFAULT; | |
3944 | goto out; | |
3945 | } | |
3946 | ||
3947 | b_base = g_base + size; | |
3948 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
3949 | ret = -EFAULT; | |
3950 | goto out; | |
3951 | } | |
3952 | ||
7203425a | 3953 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
3954 | |
3955 | out: | |
84849903 | 3956 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3957 | return ret; |
3958 | ||
3959 | } | |
3960 | ||
c8e32cc1 DV |
3961 | /** |
3962 | * drm_mode_gamma_get_ioctl - get the gamma table | |
3963 | * @dev: DRM device | |
3964 | * @data: ioctl data | |
3965 | * @file_priv: DRM file info | |
3966 | * | |
3967 | * Copy the current gamma table into the storage provided. This also provides | |
3968 | * the gamma table size the driver expects, which can be used to size the | |
3969 | * allocated storage. | |
3970 | * | |
3971 | * Called by the user via ioctl. | |
3972 | * | |
3973 | * Returns: | |
3974 | * Zero on success, errno on failure. | |
3975 | */ | |
f453ba04 DA |
3976 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
3977 | void *data, struct drm_file *file_priv) | |
3978 | { | |
3979 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3980 | struct drm_mode_object *obj; | |
3981 | struct drm_crtc *crtc; | |
3982 | void *r_base, *g_base, *b_base; | |
3983 | int size; | |
3984 | int ret = 0; | |
3985 | ||
fb3b06c8 DA |
3986 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3987 | return -EINVAL; | |
3988 | ||
84849903 | 3989 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3990 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
3991 | if (!obj) { | |
f27657f2 | 3992 | ret = -ENOENT; |
f453ba04 DA |
3993 | goto out; |
3994 | } | |
3995 | crtc = obj_to_crtc(obj); | |
3996 | ||
3997 | /* memcpy into gamma store */ | |
3998 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
3999 | ret = -EINVAL; | |
4000 | goto out; | |
4001 | } | |
4002 | ||
4003 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4004 | r_base = crtc->gamma_store; | |
4005 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4006 | ret = -EFAULT; | |
4007 | goto out; | |
4008 | } | |
4009 | ||
4010 | g_base = r_base + size; | |
4011 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4012 | ret = -EFAULT; | |
4013 | goto out; | |
4014 | } | |
4015 | ||
4016 | b_base = g_base + size; | |
4017 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4018 | ret = -EFAULT; | |
4019 | goto out; | |
4020 | } | |
4021 | out: | |
84849903 | 4022 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4023 | return ret; |
4024 | } | |
d91d8a3f | 4025 | |
c8e32cc1 DV |
4026 | /** |
4027 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4028 | * @dev: DRM device | |
4029 | * @data: ioctl data | |
4030 | * @file_priv: DRM file info | |
4031 | * | |
4032 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4033 | * Optionally a drm event is generated to signal the completion of the event. | |
4034 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4035 | * properties (including driver specific metadata like tiling layout) will work, | |
4036 | * but some drivers support e.g. pixel format changes through the pageflip | |
4037 | * ioctl. | |
4038 | * | |
4039 | * Called by the user via ioctl. | |
4040 | * | |
4041 | * Returns: | |
4042 | * Zero on success, errno on failure. | |
4043 | */ | |
d91d8a3f KH |
4044 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4045 | void *data, struct drm_file *file_priv) | |
4046 | { | |
4047 | struct drm_mode_crtc_page_flip *page_flip = data; | |
4048 | struct drm_mode_object *obj; | |
4049 | struct drm_crtc *crtc; | |
b0d12325 | 4050 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
4051 | struct drm_pending_vblank_event *e = NULL; |
4052 | unsigned long flags; | |
4053 | int ret = -EINVAL; | |
4054 | ||
4055 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4056 | page_flip->reserved != 0) | |
4057 | return -EINVAL; | |
4058 | ||
62f2104f KP |
4059 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4060 | return -EINVAL; | |
4061 | ||
d91d8a3f KH |
4062 | obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); |
4063 | if (!obj) | |
f27657f2 | 4064 | return -ENOENT; |
d91d8a3f KH |
4065 | crtc = obj_to_crtc(obj); |
4066 | ||
b4d5e7d1 | 4067 | mutex_lock(&crtc->mutex); |
90c1efdd CW |
4068 | if (crtc->fb == NULL) { |
4069 | /* The framebuffer is currently unbound, presumably | |
4070 | * due to a hotplug event, that userspace has not | |
4071 | * yet discovered. | |
4072 | */ | |
4073 | ret = -EBUSY; | |
4074 | goto out; | |
4075 | } | |
4076 | ||
d91d8a3f KH |
4077 | if (crtc->funcs->page_flip == NULL) |
4078 | goto out; | |
4079 | ||
786b99ed | 4080 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4081 | if (!fb) { |
4082 | ret = -ENOENT; | |
d91d8a3f | 4083 | goto out; |
37c4e705 | 4084 | } |
d91d8a3f | 4085 | |
c11e9283 DL |
4086 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4087 | if (ret) | |
5f61bb42 | 4088 | goto out; |
5f61bb42 | 4089 | |
909d9cda LP |
4090 | if (crtc->fb->pixel_format != fb->pixel_format) { |
4091 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); | |
4092 | ret = -EINVAL; | |
4093 | goto out; | |
4094 | } | |
4095 | ||
d91d8a3f KH |
4096 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4097 | ret = -ENOMEM; | |
4098 | spin_lock_irqsave(&dev->event_lock, flags); | |
4099 | if (file_priv->event_space < sizeof e->event) { | |
4100 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4101 | goto out; | |
4102 | } | |
4103 | file_priv->event_space -= sizeof e->event; | |
4104 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4105 | ||
4106 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4107 | if (e == NULL) { | |
4108 | spin_lock_irqsave(&dev->event_lock, flags); | |
4109 | file_priv->event_space += sizeof e->event; | |
4110 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4111 | goto out; | |
4112 | } | |
4113 | ||
7bd4d7be | 4114 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4115 | e->event.base.length = sizeof e->event; |
4116 | e->event.user_data = page_flip->user_data; | |
4117 | e->base.event = &e->event.base; | |
4118 | e->base.file_priv = file_priv; | |
4119 | e->base.destroy = | |
4120 | (void (*) (struct drm_pending_event *)) kfree; | |
4121 | } | |
4122 | ||
b0d12325 | 4123 | old_fb = crtc->fb; |
ed8d1975 | 4124 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4125 | if (ret) { |
aef6a7ee JS |
4126 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4127 | spin_lock_irqsave(&dev->event_lock, flags); | |
4128 | file_priv->event_space += sizeof e->event; | |
4129 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4130 | kfree(e); | |
4131 | } | |
b0d12325 DV |
4132 | /* Keep the old fb, don't unref it. */ |
4133 | old_fb = NULL; | |
4134 | } else { | |
8cf1e981 TR |
4135 | /* |
4136 | * Warn if the driver hasn't properly updated the crtc->fb | |
4137 | * field to reflect that the new framebuffer is now used. | |
4138 | * Failing to do so will screw with the reference counting | |
4139 | * on framebuffers. | |
4140 | */ | |
4141 | WARN_ON(crtc->fb != fb); | |
b0d12325 DV |
4142 | /* Unref only the old framebuffer. */ |
4143 | fb = NULL; | |
d91d8a3f KH |
4144 | } |
4145 | ||
4146 | out: | |
b0d12325 DV |
4147 | if (fb) |
4148 | drm_framebuffer_unreference(fb); | |
4149 | if (old_fb) | |
4150 | drm_framebuffer_unreference(old_fb); | |
b4d5e7d1 DV |
4151 | mutex_unlock(&crtc->mutex); |
4152 | ||
d91d8a3f KH |
4153 | return ret; |
4154 | } | |
eb033556 | 4155 | |
c8e32cc1 DV |
4156 | /** |
4157 | * drm_mode_config_reset - call ->reset callbacks | |
4158 | * @dev: drm device | |
4159 | * | |
4160 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4161 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4162 | * reset hardware and software state. | |
4163 | */ | |
eb033556 CW |
4164 | void drm_mode_config_reset(struct drm_device *dev) |
4165 | { | |
4166 | struct drm_crtc *crtc; | |
4167 | struct drm_encoder *encoder; | |
4168 | struct drm_connector *connector; | |
4169 | ||
4170 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
4171 | if (crtc->funcs->reset) | |
4172 | crtc->funcs->reset(crtc); | |
4173 | ||
4174 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4175 | if (encoder->funcs->reset) | |
4176 | encoder->funcs->reset(encoder); | |
4177 | ||
5e2cb2f6 DV |
4178 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4179 | connector->status = connector_status_unknown; | |
4180 | ||
eb033556 CW |
4181 | if (connector->funcs->reset) |
4182 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4183 | } |
eb033556 CW |
4184 | } |
4185 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4186 | |
c8e32cc1 DV |
4187 | /** |
4188 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4189 | * @dev: DRM device | |
4190 | * @data: ioctl data | |
4191 | * @file_priv: DRM file info | |
4192 | * | |
4193 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4194 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4195 | * handle can then be wrapped up into a framebuffer modeset object. | |
4196 | * | |
4197 | * Note that userspace is not allowed to use such objects for render | |
4198 | * acceleration - drivers must create their own private ioctls for such a use | |
4199 | * case. | |
4200 | * | |
4201 | * Called by the user via ioctl. | |
4202 | * | |
4203 | * Returns: | |
4204 | * Zero on success, errno on failure. | |
4205 | */ | |
ff72145b DA |
4206 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4207 | void *data, struct drm_file *file_priv) | |
4208 | { | |
4209 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4210 | u32 cpp, stride, size; |
ff72145b DA |
4211 | |
4212 | if (!dev->driver->dumb_create) | |
4213 | return -ENOSYS; | |
b28cd41f DH |
4214 | if (!args->width || !args->height || !args->bpp) |
4215 | return -EINVAL; | |
4216 | ||
4217 | /* overflow checks for 32bit size calculations */ | |
4218 | cpp = DIV_ROUND_UP(args->bpp, 8); | |
4219 | if (cpp > 0xffffffffU / args->width) | |
4220 | return -EINVAL; | |
4221 | stride = cpp * args->width; | |
4222 | if (args->height > 0xffffffffU / stride) | |
4223 | return -EINVAL; | |
4224 | ||
4225 | /* test for wrap-around */ | |
4226 | size = args->height * stride; | |
4227 | if (PAGE_ALIGN(size) == 0) | |
4228 | return -EINVAL; | |
4229 | ||
ff72145b DA |
4230 | return dev->driver->dumb_create(file_priv, dev, args); |
4231 | } | |
4232 | ||
c8e32cc1 DV |
4233 | /** |
4234 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4235 | * @dev: DRM device | |
4236 | * @data: ioctl data | |
4237 | * @file_priv: DRM file info | |
4238 | * | |
4239 | * Allocate an offset in the drm device node's address space to be able to | |
4240 | * memory map a dumb buffer. | |
4241 | * | |
4242 | * Called by the user via ioctl. | |
4243 | * | |
4244 | * Returns: | |
4245 | * Zero on success, errno on failure. | |
4246 | */ | |
ff72145b DA |
4247 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4248 | void *data, struct drm_file *file_priv) | |
4249 | { | |
4250 | struct drm_mode_map_dumb *args = data; | |
4251 | ||
4252 | /* call driver ioctl to get mmap offset */ | |
4253 | if (!dev->driver->dumb_map_offset) | |
4254 | return -ENOSYS; | |
4255 | ||
4256 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4257 | } | |
4258 | ||
c8e32cc1 DV |
4259 | /** |
4260 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4261 | * @dev: DRM device | |
4262 | * @data: ioctl data | |
4263 | * @file_priv: DRM file info | |
4264 | * | |
4265 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4266 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4267 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4268 | * | |
4269 | * Called by the user via ioctl. | |
4270 | * | |
4271 | * Returns: | |
4272 | * Zero on success, errno on failure. | |
4273 | */ | |
ff72145b DA |
4274 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4275 | void *data, struct drm_file *file_priv) | |
4276 | { | |
4277 | struct drm_mode_destroy_dumb *args = data; | |
4278 | ||
4279 | if (!dev->driver->dumb_destroy) | |
4280 | return -ENOSYS; | |
4281 | ||
4282 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4283 | } | |
248dbc23 | 4284 | |
c8e32cc1 DV |
4285 | /** |
4286 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4287 | * @format: pixel format (DRM_FORMAT_*) | |
4288 | * @depth: storage for the depth value | |
4289 | * @bpp: storage for the bpp value | |
4290 | * | |
4291 | * This only supports RGB formats here for compat with code that doesn't use | |
4292 | * pixel formats directly yet. | |
248dbc23 DA |
4293 | */ |
4294 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4295 | int *bpp) | |
4296 | { | |
4297 | switch (format) { | |
c51a6bc5 | 4298 | case DRM_FORMAT_C8: |
04b3924d VS |
4299 | case DRM_FORMAT_RGB332: |
4300 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4301 | *depth = 8; |
4302 | *bpp = 8; | |
4303 | break; | |
04b3924d VS |
4304 | case DRM_FORMAT_XRGB1555: |
4305 | case DRM_FORMAT_XBGR1555: | |
4306 | case DRM_FORMAT_RGBX5551: | |
4307 | case DRM_FORMAT_BGRX5551: | |
4308 | case DRM_FORMAT_ARGB1555: | |
4309 | case DRM_FORMAT_ABGR1555: | |
4310 | case DRM_FORMAT_RGBA5551: | |
4311 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4312 | *depth = 15; |
4313 | *bpp = 16; | |
4314 | break; | |
04b3924d VS |
4315 | case DRM_FORMAT_RGB565: |
4316 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4317 | *depth = 16; |
4318 | *bpp = 16; | |
4319 | break; | |
04b3924d VS |
4320 | case DRM_FORMAT_RGB888: |
4321 | case DRM_FORMAT_BGR888: | |
4322 | *depth = 24; | |
4323 | *bpp = 24; | |
4324 | break; | |
4325 | case DRM_FORMAT_XRGB8888: | |
4326 | case DRM_FORMAT_XBGR8888: | |
4327 | case DRM_FORMAT_RGBX8888: | |
4328 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4329 | *depth = 24; |
4330 | *bpp = 32; | |
4331 | break; | |
04b3924d VS |
4332 | case DRM_FORMAT_XRGB2101010: |
4333 | case DRM_FORMAT_XBGR2101010: | |
4334 | case DRM_FORMAT_RGBX1010102: | |
4335 | case DRM_FORMAT_BGRX1010102: | |
4336 | case DRM_FORMAT_ARGB2101010: | |
4337 | case DRM_FORMAT_ABGR2101010: | |
4338 | case DRM_FORMAT_RGBA1010102: | |
4339 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4340 | *depth = 30; |
4341 | *bpp = 32; | |
4342 | break; | |
04b3924d VS |
4343 | case DRM_FORMAT_ARGB8888: |
4344 | case DRM_FORMAT_ABGR8888: | |
4345 | case DRM_FORMAT_RGBA8888: | |
4346 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4347 | *depth = 32; |
4348 | *bpp = 32; | |
4349 | break; | |
4350 | default: | |
23c453a4 VS |
4351 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4352 | drm_get_format_name(format)); | |
248dbc23 DA |
4353 | *depth = 0; |
4354 | *bpp = 0; | |
4355 | break; | |
4356 | } | |
4357 | } | |
4358 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4359 | |
4360 | /** | |
4361 | * drm_format_num_planes - get the number of planes for format | |
4362 | * @format: pixel format (DRM_FORMAT_*) | |
4363 | * | |
c8e32cc1 | 4364 | * Returns: |
141670e9 VS |
4365 | * The number of planes used by the specified pixel format. |
4366 | */ | |
4367 | int drm_format_num_planes(uint32_t format) | |
4368 | { | |
4369 | switch (format) { | |
4370 | case DRM_FORMAT_YUV410: | |
4371 | case DRM_FORMAT_YVU410: | |
4372 | case DRM_FORMAT_YUV411: | |
4373 | case DRM_FORMAT_YVU411: | |
4374 | case DRM_FORMAT_YUV420: | |
4375 | case DRM_FORMAT_YVU420: | |
4376 | case DRM_FORMAT_YUV422: | |
4377 | case DRM_FORMAT_YVU422: | |
4378 | case DRM_FORMAT_YUV444: | |
4379 | case DRM_FORMAT_YVU444: | |
4380 | return 3; | |
4381 | case DRM_FORMAT_NV12: | |
4382 | case DRM_FORMAT_NV21: | |
4383 | case DRM_FORMAT_NV16: | |
4384 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4385 | case DRM_FORMAT_NV24: |
4386 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4387 | return 2; |
4388 | default: | |
4389 | return 1; | |
4390 | } | |
4391 | } | |
4392 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4393 | |
4394 | /** | |
4395 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4396 | * @format: pixel format (DRM_FORMAT_*) | |
4397 | * @plane: plane index | |
4398 | * | |
c8e32cc1 | 4399 | * Returns: |
5a86bd55 VS |
4400 | * The bytes per pixel value for the specified plane. |
4401 | */ | |
4402 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4403 | { | |
4404 | unsigned int depth; | |
4405 | int bpp; | |
4406 | ||
4407 | if (plane >= drm_format_num_planes(format)) | |
4408 | return 0; | |
4409 | ||
4410 | switch (format) { | |
4411 | case DRM_FORMAT_YUYV: | |
4412 | case DRM_FORMAT_YVYU: | |
4413 | case DRM_FORMAT_UYVY: | |
4414 | case DRM_FORMAT_VYUY: | |
4415 | return 2; | |
4416 | case DRM_FORMAT_NV12: | |
4417 | case DRM_FORMAT_NV21: | |
4418 | case DRM_FORMAT_NV16: | |
4419 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4420 | case DRM_FORMAT_NV24: |
4421 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4422 | return plane ? 2 : 1; |
4423 | case DRM_FORMAT_YUV410: | |
4424 | case DRM_FORMAT_YVU410: | |
4425 | case DRM_FORMAT_YUV411: | |
4426 | case DRM_FORMAT_YVU411: | |
4427 | case DRM_FORMAT_YUV420: | |
4428 | case DRM_FORMAT_YVU420: | |
4429 | case DRM_FORMAT_YUV422: | |
4430 | case DRM_FORMAT_YVU422: | |
4431 | case DRM_FORMAT_YUV444: | |
4432 | case DRM_FORMAT_YVU444: | |
4433 | return 1; | |
4434 | default: | |
4435 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4436 | return bpp >> 3; | |
4437 | } | |
4438 | } | |
4439 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4440 | |
4441 | /** | |
4442 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4443 | * @format: pixel format (DRM_FORMAT_*) | |
4444 | * | |
c8e32cc1 | 4445 | * Returns: |
01b68b04 VS |
4446 | * The horizontal chroma subsampling factor for the |
4447 | * specified pixel format. | |
4448 | */ | |
4449 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4450 | { | |
4451 | switch (format) { | |
4452 | case DRM_FORMAT_YUV411: | |
4453 | case DRM_FORMAT_YVU411: | |
4454 | case DRM_FORMAT_YUV410: | |
4455 | case DRM_FORMAT_YVU410: | |
4456 | return 4; | |
4457 | case DRM_FORMAT_YUYV: | |
4458 | case DRM_FORMAT_YVYU: | |
4459 | case DRM_FORMAT_UYVY: | |
4460 | case DRM_FORMAT_VYUY: | |
4461 | case DRM_FORMAT_NV12: | |
4462 | case DRM_FORMAT_NV21: | |
4463 | case DRM_FORMAT_NV16: | |
4464 | case DRM_FORMAT_NV61: | |
4465 | case DRM_FORMAT_YUV422: | |
4466 | case DRM_FORMAT_YVU422: | |
4467 | case DRM_FORMAT_YUV420: | |
4468 | case DRM_FORMAT_YVU420: | |
4469 | return 2; | |
4470 | default: | |
4471 | return 1; | |
4472 | } | |
4473 | } | |
4474 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4475 | ||
4476 | /** | |
4477 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4478 | * @format: pixel format (DRM_FORMAT_*) | |
4479 | * | |
c8e32cc1 | 4480 | * Returns: |
01b68b04 VS |
4481 | * The vertical chroma subsampling factor for the |
4482 | * specified pixel format. | |
4483 | */ | |
4484 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4485 | { | |
4486 | switch (format) { | |
4487 | case DRM_FORMAT_YUV410: | |
4488 | case DRM_FORMAT_YVU410: | |
4489 | return 4; | |
4490 | case DRM_FORMAT_YUV420: | |
4491 | case DRM_FORMAT_YVU420: | |
4492 | case DRM_FORMAT_NV12: | |
4493 | case DRM_FORMAT_NV21: | |
4494 | return 2; | |
4495 | default: | |
4496 | return 1; | |
4497 | } | |
4498 | } | |
4499 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 LP |
4500 | |
4501 | /** | |
4502 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
4503 | * @dev: DRM device | |
4504 | * | |
4505 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
4506 | * configuration of @dev. | |
4507 | * | |
4508 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
4509 | * problem, since this should happen single threaded at init time. It is the | |
4510 | * driver's problem to ensure this guarantee. | |
4511 | * | |
4512 | */ | |
4513 | void drm_mode_config_init(struct drm_device *dev) | |
4514 | { | |
4515 | mutex_init(&dev->mode_config.mutex); | |
4516 | mutex_init(&dev->mode_config.idr_mutex); | |
4517 | mutex_init(&dev->mode_config.fb_lock); | |
4518 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
4519 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
4520 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 4521 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
4522 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
4523 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
4524 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
4525 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
4526 | idr_init(&dev->mode_config.crtc_idr); | |
4527 | ||
4528 | drm_modeset_lock_all(dev); | |
4529 | drm_mode_create_standard_connector_properties(dev); | |
4530 | drm_modeset_unlock_all(dev); | |
4531 | ||
4532 | /* Just to be sure */ | |
4533 | dev->mode_config.num_fb = 0; | |
4534 | dev->mode_config.num_connector = 0; | |
4535 | dev->mode_config.num_crtc = 0; | |
4536 | dev->mode_config.num_encoder = 0; | |
4537 | } | |
4538 | EXPORT_SYMBOL(drm_mode_config_init); | |
4539 | ||
4540 | /** | |
4541 | * drm_mode_config_cleanup - free up DRM mode_config info | |
4542 | * @dev: DRM device | |
4543 | * | |
4544 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
4545 | * free up the framebuffers and associated buffer objects. | |
4546 | * | |
4547 | * Note that since this /should/ happen single-threaded at driver/device | |
4548 | * teardown time, no locking is required. It's the driver's job to ensure that | |
4549 | * this guarantee actually holds true. | |
4550 | * | |
4551 | * FIXME: cleanup any dangling user buffer objects too | |
4552 | */ | |
4553 | void drm_mode_config_cleanup(struct drm_device *dev) | |
4554 | { | |
4555 | struct drm_connector *connector, *ot; | |
4556 | struct drm_crtc *crtc, *ct; | |
4557 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 4558 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
4559 | struct drm_framebuffer *fb, *fbt; |
4560 | struct drm_property *property, *pt; | |
4561 | struct drm_property_blob *blob, *bt; | |
4562 | struct drm_plane *plane, *plt; | |
4563 | ||
4564 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
4565 | head) { | |
4566 | encoder->funcs->destroy(encoder); | |
4567 | } | |
4568 | ||
3b336ec4 SP |
4569 | list_for_each_entry_safe(bridge, brt, |
4570 | &dev->mode_config.bridge_list, head) { | |
4571 | bridge->funcs->destroy(bridge); | |
4572 | } | |
4573 | ||
87d24fc3 LP |
4574 | list_for_each_entry_safe(connector, ot, |
4575 | &dev->mode_config.connector_list, head) { | |
4576 | connector->funcs->destroy(connector); | |
4577 | } | |
4578 | ||
4579 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
4580 | head) { | |
4581 | drm_property_destroy(dev, property); | |
4582 | } | |
4583 | ||
4584 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
4585 | head) { | |
4586 | drm_property_destroy_blob(dev, blob); | |
4587 | } | |
4588 | ||
4589 | /* | |
4590 | * Single-threaded teardown context, so it's not required to grab the | |
4591 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
4592 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
4593 | * | |
4594 | * Also, if there are any framebuffers left, that's a driver leak now, | |
4595 | * so politely WARN about this. | |
4596 | */ | |
4597 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
4598 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
4599 | drm_framebuffer_remove(fb); | |
4600 | } | |
4601 | ||
4602 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
4603 | head) { | |
4604 | plane->funcs->destroy(plane); | |
4605 | } | |
4606 | ||
4607 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
4608 | crtc->funcs->destroy(crtc); | |
4609 | } | |
4610 | ||
4611 | idr_destroy(&dev->mode_config.crtc_idr); | |
4612 | } | |
4613 | EXPORT_SYMBOL(drm_mode_config_cleanup); |