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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
51fd371b | 40 | #include <drm/drm_modeset_lock.h> |
f453ba04 | 41 | |
8bd441b2 DV |
42 | #include "drm_crtc_internal.h" |
43 | ||
c394c2b0 MR |
44 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
45 | struct drm_mode_fb_cmd2 *r, | |
46 | struct drm_file *file_priv); | |
47 | ||
84849903 DV |
48 | /** |
49 | * drm_modeset_lock_all - take all modeset locks | |
50 | * @dev: drm device | |
51 | * | |
52 | * This function takes all modeset locks, suitable where a more fine-grained | |
c8e32cc1 DV |
53 | * scheme isn't (yet) implemented. Locks must be dropped with |
54 | * drm_modeset_unlock_all. | |
84849903 DV |
55 | */ |
56 | void drm_modeset_lock_all(struct drm_device *dev) | |
57 | { | |
51fd371b RC |
58 | struct drm_mode_config *config = &dev->mode_config; |
59 | struct drm_modeset_acquire_ctx *ctx; | |
60 | int ret; | |
29494c17 | 61 | |
51fd371b RC |
62 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
63 | if (WARN_ON(!ctx)) | |
64 | return; | |
29494c17 | 65 | |
51fd371b | 66 | mutex_lock(&config->mutex); |
6e9f798d | 67 | |
51fd371b RC |
68 | drm_modeset_acquire_init(ctx, 0); |
69 | ||
70 | retry: | |
71 | ret = drm_modeset_lock(&config->connection_mutex, ctx); | |
72 | if (ret) | |
73 | goto fail; | |
74 | ret = drm_modeset_lock_all_crtcs(dev, ctx); | |
75 | if (ret) | |
76 | goto fail; | |
77 | ||
78 | WARN_ON(config->acquire_ctx); | |
79 | ||
80 | /* now we hold the locks, so now that it is safe, stash the | |
81 | * ctx for drm_modeset_unlock_all(): | |
82 | */ | |
83 | config->acquire_ctx = ctx; | |
84 | ||
85 | drm_warn_on_modeset_not_all_locked(dev); | |
86 | ||
87 | return; | |
88 | ||
89 | fail: | |
90 | if (ret == -EDEADLK) { | |
91 | drm_modeset_backoff(ctx); | |
92 | goto retry; | |
93 | } | |
84849903 DV |
94 | } |
95 | EXPORT_SYMBOL(drm_modeset_lock_all); | |
96 | ||
97 | /** | |
98 | * drm_modeset_unlock_all - drop all modeset locks | |
99 | * @dev: device | |
c8e32cc1 DV |
100 | * |
101 | * This function drop all modeset locks taken by drm_modeset_lock_all. | |
84849903 DV |
102 | */ |
103 | void drm_modeset_unlock_all(struct drm_device *dev) | |
104 | { | |
51fd371b RC |
105 | struct drm_mode_config *config = &dev->mode_config; |
106 | struct drm_modeset_acquire_ctx *ctx = config->acquire_ctx; | |
29494c17 | 107 | |
51fd371b RC |
108 | if (WARN_ON(!ctx)) |
109 | return; | |
110 | ||
111 | config->acquire_ctx = NULL; | |
112 | drm_modeset_drop_locks(ctx); | |
113 | drm_modeset_acquire_fini(ctx); | |
29494c17 | 114 | |
51fd371b | 115 | kfree(ctx); |
6e9f798d | 116 | |
84849903 DV |
117 | mutex_unlock(&dev->mode_config.mutex); |
118 | } | |
119 | EXPORT_SYMBOL(drm_modeset_unlock_all); | |
120 | ||
6aed8ec3 DV |
121 | /** |
122 | * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked | |
123 | * @dev: device | |
c8e32cc1 DV |
124 | * |
125 | * Useful as a debug assert. | |
6aed8ec3 DV |
126 | */ |
127 | void drm_warn_on_modeset_not_all_locked(struct drm_device *dev) | |
128 | { | |
129 | struct drm_crtc *crtc; | |
130 | ||
a9b054e8 DV |
131 | /* Locking is currently fubar in the panic handler. */ |
132 | if (oops_in_progress) | |
133 | return; | |
134 | ||
6aed8ec3 | 135 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
51fd371b | 136 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); |
6aed8ec3 | 137 | |
51fd371b | 138 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
6aed8ec3 DV |
139 | WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); |
140 | } | |
141 | EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked); | |
142 | ||
f453ba04 DA |
143 | /* Avoid boilerplate. I'm tired of typing. */ |
144 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 145 | const char *fnname(int val) \ |
f453ba04 DA |
146 | { \ |
147 | int i; \ | |
148 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
149 | if (list[i].type == val) \ | |
150 | return list[i].name; \ | |
151 | } \ | |
152 | return "(unknown)"; \ | |
153 | } | |
154 | ||
155 | /* | |
156 | * Global properties | |
157 | */ | |
d20d3174 | 158 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
f453ba04 DA |
159 | { { DRM_MODE_DPMS_ON, "On" }, |
160 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
161 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
162 | { DRM_MODE_DPMS_OFF, "Off" } | |
163 | }; | |
164 | ||
165 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
166 | ||
9922ab5a RC |
167 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
168 | { | |
169 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
170 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
171 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
172 | }; | |
173 | ||
f453ba04 DA |
174 | /* |
175 | * Optional properties | |
176 | */ | |
d20d3174 | 177 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 178 | { |
53bd8389 JB |
179 | { DRM_MODE_SCALE_NONE, "None" }, |
180 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
181 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
182 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
183 | }; |
184 | ||
f453ba04 DA |
185 | /* |
186 | * Non-global properties, but "required" for certain connectors. | |
187 | */ | |
d20d3174 | 188 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
189 | { |
190 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
191 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
192 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
193 | }; | |
194 | ||
195 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
196 | ||
d20d3174 | 197 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
198 | { |
199 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
200 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
201 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
202 | }; | |
203 | ||
204 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
205 | drm_dvi_i_subconnector_enum_list) | |
206 | ||
d20d3174 | 207 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
208 | { |
209 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
210 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
211 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
212 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 213 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
214 | }; |
215 | ||
216 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
217 | ||
d20d3174 | 218 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
219 | { |
220 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
221 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
222 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
223 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 224 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
225 | }; |
226 | ||
227 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
228 | drm_tv_subconnector_enum_list) | |
229 | ||
d20d3174 | 230 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
231 | { DRM_MODE_DIRTY_OFF, "Off" }, |
232 | { DRM_MODE_DIRTY_ON, "On" }, | |
233 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
234 | }; | |
235 | ||
f453ba04 DA |
236 | struct drm_conn_prop_enum_list { |
237 | int type; | |
d20d3174 | 238 | const char *name; |
b21e3afe | 239 | struct ida ida; |
f453ba04 DA |
240 | }; |
241 | ||
242 | /* | |
243 | * Connector and encoder types. | |
244 | */ | |
245 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
246 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
247 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
248 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
249 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
250 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
251 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
252 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
253 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
254 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
255 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
256 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
257 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
258 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
259 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
260 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
261 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 262 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
263 | }; |
264 | ||
d20d3174 | 265 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
266 | { { DRM_MODE_ENCODER_NONE, "None" }, |
267 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
268 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
269 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
270 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 271 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 272 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 273 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
274 | }; |
275 | ||
ac1bb36c JB |
276 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
277 | { | |
278 | { SubPixelUnknown, "Unknown" }, | |
279 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
280 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
281 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
282 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
283 | { SubPixelNone, "None" }, | |
284 | }; | |
285 | ||
b21e3afe IM |
286 | void drm_connector_ida_init(void) |
287 | { | |
288 | int i; | |
289 | ||
290 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
291 | ida_init(&drm_connector_enum_list[i].ida); | |
292 | } | |
293 | ||
294 | void drm_connector_ida_destroy(void) | |
295 | { | |
296 | int i; | |
297 | ||
298 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
299 | ida_destroy(&drm_connector_enum_list[i].ida); | |
300 | } | |
301 | ||
c8e32cc1 DV |
302 | /** |
303 | * drm_get_connector_status_name - return a string for connector status | |
304 | * @status: connector status to compute name of | |
305 | * | |
306 | * In contrast to the other drm_get_*_name functions this one here returns a | |
307 | * const pointer and hence is threadsafe. | |
308 | */ | |
d20d3174 | 309 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
310 | { |
311 | if (status == connector_status_connected) | |
312 | return "connected"; | |
313 | else if (status == connector_status_disconnected) | |
314 | return "disconnected"; | |
315 | else | |
316 | return "unknown"; | |
317 | } | |
ed7951dc | 318 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 319 | |
ac1bb36c JB |
320 | /** |
321 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
322 | * @order: enum of subpixel_order | |
323 | * | |
324 | * Note you could abuse this and return something out of bounds, but that | |
325 | * would be a caller error. No unscrubbed user data should make it here. | |
326 | */ | |
327 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
328 | { | |
329 | return drm_subpixel_enum_list[order].name; | |
330 | } | |
331 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
332 | ||
6ba6d03e VS |
333 | static char printable_char(int c) |
334 | { | |
335 | return isascii(c) && isprint(c) ? c : '?'; | |
336 | } | |
337 | ||
c8e32cc1 DV |
338 | /** |
339 | * drm_get_format_name - return a string for drm fourcc format | |
340 | * @format: format to compute name of | |
341 | * | |
342 | * Note that the buffer used by this function is globally shared and owned by | |
343 | * the function itself. | |
344 | * | |
345 | * FIXME: This isn't really multithreading safe. | |
346 | */ | |
d20d3174 | 347 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
348 | { |
349 | static char buf[32]; | |
350 | ||
351 | snprintf(buf, sizeof(buf), | |
352 | "%c%c%c%c %s-endian (0x%08x)", | |
353 | printable_char(format & 0xff), | |
354 | printable_char((format >> 8) & 0xff), | |
355 | printable_char((format >> 16) & 0xff), | |
356 | printable_char((format >> 24) & 0x7f), | |
357 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
358 | format); | |
359 | ||
360 | return buf; | |
361 | } | |
362 | EXPORT_SYMBOL(drm_get_format_name); | |
363 | ||
f453ba04 | 364 | /** |
065a50ed | 365 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 366 | * @dev: DRM device |
065a50ed DV |
367 | * @obj: object pointer, used to generate unique ID |
368 | * @obj_type: object type | |
f453ba04 | 369 | * |
f453ba04 | 370 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
371 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
372 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
373 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 374 | * |
c8e32cc1 | 375 | * Returns: |
f453ba04 DA |
376 | * New unique (relative to other objects in @dev) integer identifier for the |
377 | * object. | |
378 | */ | |
8bd441b2 DV |
379 | int drm_mode_object_get(struct drm_device *dev, |
380 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 381 | { |
f453ba04 DA |
382 | int ret; |
383 | ||
ad2563c2 | 384 | mutex_lock(&dev->mode_config.idr_mutex); |
2e928815 TH |
385 | ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL); |
386 | if (ret >= 0) { | |
4b096ac1 DV |
387 | /* |
388 | * Set up the object linking under the protection of the idr | |
389 | * lock so that other users can't see inconsistent state. | |
390 | */ | |
2e928815 | 391 | obj->id = ret; |
4b096ac1 DV |
392 | obj->type = obj_type; |
393 | } | |
ad2563c2 | 394 | mutex_unlock(&dev->mode_config.idr_mutex); |
4b096ac1 | 395 | |
2e928815 | 396 | return ret < 0 ? ret : 0; |
f453ba04 DA |
397 | } |
398 | ||
399 | /** | |
065a50ed | 400 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 401 | * @dev: DRM device |
065a50ed | 402 | * @object: object to free |
f453ba04 | 403 | * |
c8e32cc1 DV |
404 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
405 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
406 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 407 | */ |
8bd441b2 DV |
408 | void drm_mode_object_put(struct drm_device *dev, |
409 | struct drm_mode_object *object) | |
f453ba04 | 410 | { |
ad2563c2 | 411 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 412 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 413 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
414 | } |
415 | ||
98f75de4 RC |
416 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
417 | uint32_t id, uint32_t type) | |
418 | { | |
419 | struct drm_mode_object *obj = NULL; | |
420 | ||
421 | mutex_lock(&dev->mode_config.idr_mutex); | |
422 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
423 | if (!obj || (type != DRM_MODE_OBJECT_ANY && obj->type != type) || | |
424 | (obj->id != id)) | |
425 | obj = NULL; | |
426 | mutex_unlock(&dev->mode_config.idr_mutex); | |
427 | ||
428 | return obj; | |
429 | } | |
430 | ||
786b99ed DV |
431 | /** |
432 | * drm_mode_object_find - look up a drm object with static lifetime | |
433 | * @dev: drm device | |
434 | * @id: id of the mode object | |
435 | * @type: type of the mode object | |
436 | * | |
437 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
438 | * are reference counted, they need special treatment. Even with |
439 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
440 | * rather than WARN_ON()). | |
786b99ed | 441 | */ |
7a9c9060 DV |
442 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
443 | uint32_t id, uint32_t type) | |
f453ba04 | 444 | { |
ad2563c2 | 445 | struct drm_mode_object *obj = NULL; |
f453ba04 | 446 | |
786b99ed DV |
447 | /* Framebuffers are reference counted and need their own lookup |
448 | * function.*/ | |
449 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 RC |
450 | obj = _object_find(dev, id, type); |
451 | /* don't leak out unref'd fb's */ | |
452 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
ad2563c2 | 453 | obj = NULL; |
f453ba04 DA |
454 | return obj; |
455 | } | |
456 | EXPORT_SYMBOL(drm_mode_object_find); | |
457 | ||
f453ba04 DA |
458 | /** |
459 | * drm_framebuffer_init - initialize a framebuffer | |
460 | * @dev: DRM device | |
065a50ed DV |
461 | * @fb: framebuffer to be initialized |
462 | * @funcs: ... with these functions | |
f453ba04 | 463 | * |
f453ba04 DA |
464 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
465 | * functions & device file and adds it to the master fd list. | |
466 | * | |
4b096ac1 DV |
467 | * IMPORTANT: |
468 | * This functions publishes the fb and makes it available for concurrent access | |
469 | * by other users. Which means by this point the fb _must_ be fully set up - | |
470 | * since all the fb attributes are invariant over its lifetime, no further | |
471 | * locking but only correct reference counting is required. | |
472 | * | |
c8e32cc1 | 473 | * Returns: |
af901ca1 | 474 | * Zero on success, error code on failure. |
f453ba04 DA |
475 | */ |
476 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
477 | const struct drm_framebuffer_funcs *funcs) | |
478 | { | |
479 | int ret; | |
480 | ||
4b096ac1 | 481 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 482 | kref_init(&fb->refcount); |
4b096ac1 DV |
483 | INIT_LIST_HEAD(&fb->filp_head); |
484 | fb->dev = dev; | |
485 | fb->funcs = funcs; | |
f7eff60e | 486 | |
f453ba04 | 487 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 488 | if (ret) |
4b096ac1 | 489 | goto out; |
f453ba04 | 490 | |
2b677e8c DV |
491 | /* Grab the idr reference. */ |
492 | drm_framebuffer_reference(fb); | |
493 | ||
f453ba04 DA |
494 | dev->mode_config.num_fb++; |
495 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
496 | out: |
497 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
498 | |
499 | return 0; | |
500 | } | |
501 | EXPORT_SYMBOL(drm_framebuffer_init); | |
502 | ||
f7eff60e RC |
503 | static void drm_framebuffer_free(struct kref *kref) |
504 | { | |
505 | struct drm_framebuffer *fb = | |
506 | container_of(kref, struct drm_framebuffer, refcount); | |
507 | fb->funcs->destroy(fb); | |
508 | } | |
509 | ||
2b677e8c DV |
510 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
511 | uint32_t id) | |
512 | { | |
513 | struct drm_mode_object *obj = NULL; | |
514 | struct drm_framebuffer *fb; | |
515 | ||
516 | mutex_lock(&dev->mode_config.idr_mutex); | |
517 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
518 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
519 | fb = NULL; | |
520 | else | |
521 | fb = obj_to_fb(obj); | |
522 | mutex_unlock(&dev->mode_config.idr_mutex); | |
523 | ||
524 | return fb; | |
525 | } | |
526 | ||
786b99ed DV |
527 | /** |
528 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
529 | * @dev: drm device | |
530 | * @id: id of the fb object | |
531 | * | |
532 | * If successful, this grabs an additional reference to the framebuffer - | |
533 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 534 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
535 | */ |
536 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
537 | uint32_t id) | |
538 | { | |
786b99ed DV |
539 | struct drm_framebuffer *fb; |
540 | ||
541 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 542 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed | 543 | if (fb) |
9131d3d8 | 544 | drm_framebuffer_reference(fb); |
786b99ed DV |
545 | mutex_unlock(&dev->mode_config.fb_lock); |
546 | ||
547 | return fb; | |
548 | } | |
549 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
550 | ||
f7eff60e RC |
551 | /** |
552 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
553 | * @fb: framebuffer to unref |
554 | * | |
555 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
556 | */ |
557 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
558 | { | |
8291272a | 559 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
560 | kref_put(&fb->refcount, drm_framebuffer_free); |
561 | } | |
562 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
563 | ||
564 | /** | |
565 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 566 | * @fb: framebuffer |
c8e32cc1 DV |
567 | * |
568 | * This functions increments the fb's refcount. | |
f7eff60e RC |
569 | */ |
570 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
571 | { | |
8291272a | 572 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
573 | kref_get(&fb->refcount); |
574 | } | |
575 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
576 | ||
2b677e8c DV |
577 | static void drm_framebuffer_free_bug(struct kref *kref) |
578 | { | |
579 | BUG(); | |
580 | } | |
581 | ||
6c2a7532 DV |
582 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
583 | { | |
8291272a | 584 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
6c2a7532 DV |
585 | kref_put(&fb->refcount, drm_framebuffer_free_bug); |
586 | } | |
587 | ||
2b677e8c DV |
588 | /* dev->mode_config.fb_lock must be held! */ |
589 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
590 | struct drm_framebuffer *fb) | |
591 | { | |
592 | mutex_lock(&dev->mode_config.idr_mutex); | |
593 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
594 | mutex_unlock(&dev->mode_config.idr_mutex); | |
595 | ||
596 | fb->base.id = 0; | |
597 | ||
6c2a7532 | 598 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
599 | } |
600 | ||
36206361 DV |
601 | /** |
602 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
603 | * @fb: fb to unregister | |
604 | * | |
605 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
606 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
607 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
608 | * locking inversion). | |
609 | */ | |
610 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
611 | { | |
2b677e8c DV |
612 | struct drm_device *dev = fb->dev; |
613 | ||
614 | mutex_lock(&dev->mode_config.fb_lock); | |
615 | /* Mark fb as reaped and drop idr ref. */ | |
616 | __drm_framebuffer_unregister(dev, fb); | |
617 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
618 | } |
619 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
620 | ||
f453ba04 DA |
621 | /** |
622 | * drm_framebuffer_cleanup - remove a framebuffer object | |
623 | * @fb: framebuffer to remove | |
624 | * | |
c8e32cc1 DV |
625 | * Cleanup framebuffer. This function is intended to be used from the drivers |
626 | * ->destroy callback. It can also be used to clean up driver private | |
627 | * framebuffers embedded into a larger structure. | |
36206361 DV |
628 | * |
629 | * Note that this function does not remove the fb from active usuage - if it is | |
630 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
631 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
632 | * | |
633 | * Also, the framebuffer will not be removed from the lookup idr - for | |
634 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
635 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
636 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
637 | */ |
638 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
639 | { |
640 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 641 | |
4b096ac1 | 642 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
643 | list_del(&fb->head); |
644 | dev->mode_config.num_fb--; | |
4b096ac1 | 645 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
646 | } |
647 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
648 | ||
649 | /** | |
650 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
651 | * @fb: framebuffer to remove | |
652 | * | |
f7eff60e | 653 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 654 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
655 | * passed-in framebuffer. Might take the modeset locks. |
656 | * | |
657 | * Note that this function optimizes the cleanup away if the caller holds the | |
658 | * last reference to the framebuffer. It is also guaranteed to not take the | |
659 | * modeset locks in this case. | |
f7eff60e RC |
660 | */ |
661 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
662 | { |
663 | struct drm_device *dev = fb->dev; | |
664 | struct drm_crtc *crtc; | |
8cf5c917 | 665 | struct drm_plane *plane; |
5ef5f72f DA |
666 | struct drm_mode_set set; |
667 | int ret; | |
f453ba04 | 668 | |
4b096ac1 | 669 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 670 | |
b62584e3 DV |
671 | /* |
672 | * drm ABI mandates that we remove any deleted framebuffers from active | |
673 | * useage. But since most sane clients only remove framebuffers they no | |
674 | * longer need, try to optimize this away. | |
675 | * | |
676 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
677 | * means that we're the last holder and can skip it. Also, the refcount | |
678 | * can never increase from 1 again, so we don't need any barriers or | |
679 | * locks. | |
680 | * | |
681 | * Note that userspace could try to race with use and instate a new | |
682 | * usage _after_ we've cleared all current ones. End result will be an | |
683 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
684 | * in this manner. | |
685 | */ | |
686 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
687 | drm_modeset_lock_all(dev); | |
688 | /* remove from any CRTC */ | |
689 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 690 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
691 | /* should turn off the crtc */ |
692 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
693 | set.crtc = crtc; | |
694 | set.fb = NULL; | |
695 | ret = drm_mode_set_config_internal(&set); | |
696 | if (ret) | |
697 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
698 | } | |
5ef5f72f | 699 | } |
f453ba04 | 700 | |
b62584e3 | 701 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
702 | if (plane->fb == fb) |
703 | drm_plane_force_disable(plane); | |
8cf5c917 | 704 | } |
b62584e3 | 705 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
706 | } |
707 | ||
f7eff60e | 708 | drm_framebuffer_unreference(fb); |
f453ba04 | 709 | } |
f7eff60e | 710 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 711 | |
51fd371b RC |
712 | DEFINE_WW_CLASS(crtc_ww_class); |
713 | ||
f453ba04 | 714 | /** |
e13161af MR |
715 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
716 | * specified primary and cursor planes. | |
f453ba04 DA |
717 | * @dev: DRM device |
718 | * @crtc: CRTC object to init | |
e13161af MR |
719 | * @primary: Primary plane for CRTC |
720 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
721 | * @funcs: callbacks for the new CRTC |
722 | * | |
ad6f5c34 | 723 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 724 | * |
c8e32cc1 | 725 | * Returns: |
6bfc56aa | 726 | * Zero on success, error code on failure. |
f453ba04 | 727 | */ |
e13161af MR |
728 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
729 | struct drm_plane *primary, | |
730 | void *cursor, | |
731 | const struct drm_crtc_funcs *funcs) | |
f453ba04 | 732 | { |
51fd371b | 733 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
734 | int ret; |
735 | ||
f453ba04 DA |
736 | crtc->dev = dev; |
737 | crtc->funcs = funcs; | |
7c80e128 | 738 | crtc->invert_dimensions = false; |
f453ba04 | 739 | |
84849903 | 740 | drm_modeset_lock_all(dev); |
51fd371b RC |
741 | drm_modeset_lock_init(&crtc->mutex); |
742 | /* dropped by _unlock_all(): */ | |
743 | drm_modeset_lock(&crtc->mutex, config->acquire_ctx); | |
6bfc56aa VS |
744 | |
745 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
746 | if (ret) | |
747 | goto out; | |
f453ba04 | 748 | |
bffd9de0 PZ |
749 | crtc->base.properties = &crtc->properties; |
750 | ||
51fd371b RC |
751 | list_add_tail(&crtc->head, &config->crtc_list); |
752 | config->num_crtc++; | |
6bfc56aa | 753 | |
e13161af MR |
754 | crtc->primary = primary; |
755 | if (primary) | |
756 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
757 | ||
6bfc56aa | 758 | out: |
84849903 | 759 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
760 | |
761 | return ret; | |
f453ba04 | 762 | } |
e13161af | 763 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
764 | |
765 | /** | |
ad6f5c34 | 766 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
767 | * @crtc: CRTC to cleanup |
768 | * | |
ad6f5c34 VS |
769 | * This function cleans up @crtc and removes it from the DRM mode setting |
770 | * core. Note that the function does *not* free the crtc structure itself, | |
771 | * this is the responsibility of the caller. | |
f453ba04 DA |
772 | */ |
773 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
774 | { | |
775 | struct drm_device *dev = crtc->dev; | |
776 | ||
9e1c156f SK |
777 | kfree(crtc->gamma_store); |
778 | crtc->gamma_store = NULL; | |
f453ba04 | 779 | |
51fd371b RC |
780 | drm_modeset_lock_fini(&crtc->mutex); |
781 | ||
f453ba04 DA |
782 | drm_mode_object_put(dev, &crtc->base); |
783 | list_del(&crtc->head); | |
784 | dev->mode_config.num_crtc--; | |
785 | } | |
786 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
787 | ||
db5f7a6e RK |
788 | /** |
789 | * drm_crtc_index - find the index of a registered CRTC | |
790 | * @crtc: CRTC to find index for | |
791 | * | |
792 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
793 | * device's list of CRTCs. | |
794 | */ | |
795 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
796 | { | |
797 | unsigned int index = 0; | |
798 | struct drm_crtc *tmp; | |
799 | ||
800 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
801 | if (tmp == crtc) | |
802 | return index; | |
803 | ||
804 | index++; | |
805 | } | |
806 | ||
807 | BUG(); | |
808 | } | |
809 | EXPORT_SYMBOL(drm_crtc_index); | |
810 | ||
86f422d5 | 811 | /* |
f453ba04 DA |
812 | * drm_mode_remove - remove and free a mode |
813 | * @connector: connector list to modify | |
814 | * @mode: mode to remove | |
815 | * | |
f453ba04 DA |
816 | * Remove @mode from @connector's mode list, then free it. |
817 | */ | |
86f422d5 LD |
818 | static void drm_mode_remove(struct drm_connector *connector, |
819 | struct drm_display_mode *mode) | |
f453ba04 DA |
820 | { |
821 | list_del(&mode->head); | |
554f1d78 | 822 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 823 | } |
f453ba04 DA |
824 | |
825 | /** | |
826 | * drm_connector_init - Init a preallocated connector | |
827 | * @dev: DRM device | |
828 | * @connector: the connector to init | |
829 | * @funcs: callbacks for this connector | |
065a50ed | 830 | * @connector_type: user visible type of the connector |
f453ba04 | 831 | * |
f453ba04 DA |
832 | * Initialises a preallocated connector. Connectors should be |
833 | * subclassed as part of driver connector objects. | |
6bfc56aa | 834 | * |
c8e32cc1 | 835 | * Returns: |
6bfc56aa | 836 | * Zero on success, error code on failure. |
f453ba04 | 837 | */ |
6bfc56aa VS |
838 | int drm_connector_init(struct drm_device *dev, |
839 | struct drm_connector *connector, | |
840 | const struct drm_connector_funcs *funcs, | |
841 | int connector_type) | |
f453ba04 | 842 | { |
6bfc56aa | 843 | int ret; |
b21e3afe IM |
844 | struct ida *connector_ida = |
845 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 846 | |
84849903 | 847 | drm_modeset_lock_all(dev); |
f453ba04 | 848 | |
6bfc56aa VS |
849 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
850 | if (ret) | |
2abdd313 | 851 | goto out_unlock; |
6bfc56aa | 852 | |
7e3bdf4a | 853 | connector->base.properties = &connector->properties; |
f453ba04 DA |
854 | connector->dev = dev; |
855 | connector->funcs = funcs; | |
f453ba04 DA |
856 | connector->connector_type = connector_type; |
857 | connector->connector_type_id = | |
b21e3afe IM |
858 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
859 | if (connector->connector_type_id < 0) { | |
860 | ret = connector->connector_type_id; | |
2abdd313 | 861 | goto out_put; |
b21e3afe | 862 | } |
2abdd313 JN |
863 | connector->name = |
864 | kasprintf(GFP_KERNEL, "%s-%d", | |
865 | drm_connector_enum_list[connector_type].name, | |
866 | connector->connector_type_id); | |
867 | if (!connector->name) { | |
868 | ret = -ENOMEM; | |
869 | goto out_put; | |
870 | } | |
871 | ||
f453ba04 DA |
872 | INIT_LIST_HEAD(&connector->probed_modes); |
873 | INIT_LIST_HEAD(&connector->modes); | |
874 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 875 | connector->status = connector_status_unknown; |
f453ba04 DA |
876 | |
877 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
878 | dev->mode_config.num_connector++; | |
879 | ||
a7331e5c | 880 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 881 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
882 | dev->mode_config.edid_property, |
883 | 0); | |
f453ba04 | 884 | |
58495563 | 885 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
886 | dev->mode_config.dpms_property, 0); |
887 | ||
2abdd313 JN |
888 | out_put: |
889 | if (ret) | |
890 | drm_mode_object_put(dev, &connector->base); | |
891 | ||
892 | out_unlock: | |
84849903 | 893 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
894 | |
895 | return ret; | |
f453ba04 DA |
896 | } |
897 | EXPORT_SYMBOL(drm_connector_init); | |
898 | ||
899 | /** | |
900 | * drm_connector_cleanup - cleans up an initialised connector | |
901 | * @connector: connector to cleanup | |
902 | * | |
f453ba04 DA |
903 | * Cleans up the connector but doesn't free the object. |
904 | */ | |
905 | void drm_connector_cleanup(struct drm_connector *connector) | |
906 | { | |
907 | struct drm_device *dev = connector->dev; | |
908 | struct drm_display_mode *mode, *t; | |
909 | ||
910 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
911 | drm_mode_remove(connector, mode); | |
912 | ||
913 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
914 | drm_mode_remove(connector, mode); | |
915 | ||
b21e3afe IM |
916 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
917 | connector->connector_type_id); | |
918 | ||
f453ba04 | 919 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
920 | kfree(connector->name); |
921 | connector->name = NULL; | |
f453ba04 | 922 | list_del(&connector->head); |
6380c509 | 923 | dev->mode_config.num_connector--; |
f453ba04 DA |
924 | } |
925 | EXPORT_SYMBOL(drm_connector_cleanup); | |
926 | ||
c8e32cc1 DV |
927 | /** |
928 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
929 | * @dev: drm device | |
930 | * | |
931 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
932 | * be call when the device is disconnected, e.g. from an usb driver's | |
933 | * ->disconnect callback. | |
934 | */ | |
cbc7e221 DA |
935 | void drm_connector_unplug_all(struct drm_device *dev) |
936 | { | |
937 | struct drm_connector *connector; | |
938 | ||
939 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
940 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
941 | drm_sysfs_connector_remove(connector); | |
942 | ||
943 | } | |
944 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
945 | ||
c8e32cc1 DV |
946 | /** |
947 | * drm_bridge_init - initialize a drm transcoder/bridge | |
948 | * @dev: drm device | |
949 | * @bridge: transcoder/bridge to set up | |
950 | * @funcs: bridge function table | |
951 | * | |
952 | * Initialises a preallocated bridge. Bridges should be | |
953 | * subclassed as part of driver connector objects. | |
954 | * | |
955 | * Returns: | |
956 | * Zero on success, error code on failure. | |
957 | */ | |
3b336ec4 SP |
958 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
959 | const struct drm_bridge_funcs *funcs) | |
960 | { | |
961 | int ret; | |
962 | ||
963 | drm_modeset_lock_all(dev); | |
964 | ||
965 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
966 | if (ret) | |
967 | goto out; | |
968 | ||
969 | bridge->dev = dev; | |
970 | bridge->funcs = funcs; | |
971 | ||
972 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
973 | dev->mode_config.num_bridge++; | |
974 | ||
975 | out: | |
976 | drm_modeset_unlock_all(dev); | |
977 | return ret; | |
978 | } | |
979 | EXPORT_SYMBOL(drm_bridge_init); | |
980 | ||
c8e32cc1 DV |
981 | /** |
982 | * drm_bridge_cleanup - cleans up an initialised bridge | |
983 | * @bridge: bridge to cleanup | |
984 | * | |
985 | * Cleans up the bridge but doesn't free the object. | |
986 | */ | |
3b336ec4 SP |
987 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
988 | { | |
989 | struct drm_device *dev = bridge->dev; | |
990 | ||
991 | drm_modeset_lock_all(dev); | |
992 | drm_mode_object_put(dev, &bridge->base); | |
993 | list_del(&bridge->head); | |
994 | dev->mode_config.num_bridge--; | |
995 | drm_modeset_unlock_all(dev); | |
996 | } | |
997 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
998 | ||
c8e32cc1 DV |
999 | /** |
1000 | * drm_encoder_init - Init a preallocated encoder | |
1001 | * @dev: drm device | |
1002 | * @encoder: the encoder to init | |
1003 | * @funcs: callbacks for this encoder | |
1004 | * @encoder_type: user visible type of the encoder | |
1005 | * | |
1006 | * Initialises a preallocated encoder. Encoder should be | |
1007 | * subclassed as part of driver encoder objects. | |
1008 | * | |
1009 | * Returns: | |
1010 | * Zero on success, error code on failure. | |
1011 | */ | |
6bfc56aa | 1012 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1013 | struct drm_encoder *encoder, |
1014 | const struct drm_encoder_funcs *funcs, | |
1015 | int encoder_type) | |
f453ba04 | 1016 | { |
6bfc56aa VS |
1017 | int ret; |
1018 | ||
84849903 | 1019 | drm_modeset_lock_all(dev); |
f453ba04 | 1020 | |
6bfc56aa VS |
1021 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1022 | if (ret) | |
e5748946 | 1023 | goto out_unlock; |
f453ba04 | 1024 | |
6bfc56aa | 1025 | encoder->dev = dev; |
f453ba04 DA |
1026 | encoder->encoder_type = encoder_type; |
1027 | encoder->funcs = funcs; | |
e5748946 JN |
1028 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1029 | drm_encoder_enum_list[encoder_type].name, | |
1030 | encoder->base.id); | |
1031 | if (!encoder->name) { | |
1032 | ret = -ENOMEM; | |
1033 | goto out_put; | |
1034 | } | |
f453ba04 DA |
1035 | |
1036 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1037 | dev->mode_config.num_encoder++; | |
1038 | ||
e5748946 JN |
1039 | out_put: |
1040 | if (ret) | |
1041 | drm_mode_object_put(dev, &encoder->base); | |
1042 | ||
1043 | out_unlock: | |
84849903 | 1044 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1045 | |
1046 | return ret; | |
f453ba04 DA |
1047 | } |
1048 | EXPORT_SYMBOL(drm_encoder_init); | |
1049 | ||
c8e32cc1 DV |
1050 | /** |
1051 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1052 | * @encoder: encoder to cleanup | |
1053 | * | |
1054 | * Cleans up the encoder but doesn't free the object. | |
1055 | */ | |
f453ba04 DA |
1056 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1057 | { | |
1058 | struct drm_device *dev = encoder->dev; | |
84849903 | 1059 | drm_modeset_lock_all(dev); |
f453ba04 | 1060 | drm_mode_object_put(dev, &encoder->base); |
e5748946 JN |
1061 | kfree(encoder->name); |
1062 | encoder->name = NULL; | |
f453ba04 | 1063 | list_del(&encoder->head); |
6380c509 | 1064 | dev->mode_config.num_encoder--; |
84849903 | 1065 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1066 | } |
1067 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1068 | ||
35f2c3ae | 1069 | /** |
dc415ff9 | 1070 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1071 | * @dev: DRM device |
1072 | * @plane: plane object to init | |
1073 | * @possible_crtcs: bitmask of possible CRTCs | |
1074 | * @funcs: callbacks for the new plane | |
1075 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1076 | * @format_count: number of elements in @formats | |
dc415ff9 | 1077 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1078 | * |
dc415ff9 | 1079 | * Initializes a plane object of type @type. |
35f2c3ae | 1080 | * |
c8e32cc1 | 1081 | * Returns: |
35f2c3ae VS |
1082 | * Zero on success, error code on failure. |
1083 | */ | |
dc415ff9 MR |
1084 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1085 | unsigned long possible_crtcs, | |
1086 | const struct drm_plane_funcs *funcs, | |
1087 | const uint32_t *formats, uint32_t format_count, | |
1088 | enum drm_plane_type type) | |
8cf5c917 | 1089 | { |
6bfc56aa VS |
1090 | int ret; |
1091 | ||
84849903 | 1092 | drm_modeset_lock_all(dev); |
8cf5c917 | 1093 | |
6bfc56aa VS |
1094 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1095 | if (ret) | |
1096 | goto out; | |
1097 | ||
4d93914a | 1098 | plane->base.properties = &plane->properties; |
8cf5c917 | 1099 | plane->dev = dev; |
8cf5c917 JB |
1100 | plane->funcs = funcs; |
1101 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1102 | GFP_KERNEL); | |
1103 | if (!plane->format_types) { | |
1104 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1105 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1106 | ret = -ENOMEM; |
1107 | goto out; | |
8cf5c917 JB |
1108 | } |
1109 | ||
308e5bcb | 1110 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1111 | plane->format_count = format_count; |
1112 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1113 | plane->type = type; |
8cf5c917 | 1114 | |
dc415ff9 MR |
1115 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
1116 | dev->mode_config.num_total_plane++; | |
1117 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1118 | dev->mode_config.num_overlay_plane++; | |
8cf5c917 | 1119 | |
9922ab5a RC |
1120 | drm_object_attach_property(&plane->base, |
1121 | dev->mode_config.plane_type_property, | |
1122 | plane->type); | |
1123 | ||
6bfc56aa | 1124 | out: |
84849903 | 1125 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1126 | |
6bfc56aa | 1127 | return ret; |
8cf5c917 | 1128 | } |
dc415ff9 MR |
1129 | EXPORT_SYMBOL(drm_universal_plane_init); |
1130 | ||
1131 | /** | |
1132 | * drm_plane_init - Initialize a legacy plane | |
1133 | * @dev: DRM device | |
1134 | * @plane: plane object to init | |
1135 | * @possible_crtcs: bitmask of possible CRTCs | |
1136 | * @funcs: callbacks for the new plane | |
1137 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1138 | * @format_count: number of elements in @formats | |
1139 | * @is_primary: plane type (primary vs overlay) | |
1140 | * | |
1141 | * Legacy API to initialize a DRM plane. | |
1142 | * | |
1143 | * New drivers should call drm_universal_plane_init() instead. | |
1144 | * | |
1145 | * Returns: | |
1146 | * Zero on success, error code on failure. | |
1147 | */ | |
1148 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1149 | unsigned long possible_crtcs, | |
1150 | const struct drm_plane_funcs *funcs, | |
1151 | const uint32_t *formats, uint32_t format_count, | |
1152 | bool is_primary) | |
1153 | { | |
1154 | enum drm_plane_type type; | |
1155 | ||
1156 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1157 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1158 | formats, format_count, type); | |
1159 | } | |
8cf5c917 JB |
1160 | EXPORT_SYMBOL(drm_plane_init); |
1161 | ||
35f2c3ae VS |
1162 | /** |
1163 | * drm_plane_cleanup - Clean up the core plane usage | |
1164 | * @plane: plane to cleanup | |
1165 | * | |
1166 | * This function cleans up @plane and removes it from the DRM mode setting | |
1167 | * core. Note that the function does *not* free the plane structure itself, | |
1168 | * this is the responsibility of the caller. | |
1169 | */ | |
8cf5c917 JB |
1170 | void drm_plane_cleanup(struct drm_plane *plane) |
1171 | { | |
1172 | struct drm_device *dev = plane->dev; | |
1173 | ||
84849903 | 1174 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1175 | kfree(plane->format_types); |
1176 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1177 | |
1178 | BUG_ON(list_empty(&plane->head)); | |
1179 | ||
1180 | list_del(&plane->head); | |
1181 | dev->mode_config.num_total_plane--; | |
1182 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1183 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1184 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1185 | } |
1186 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1187 | ||
35f2c3ae VS |
1188 | /** |
1189 | * drm_plane_force_disable - Forcibly disable a plane | |
1190 | * @plane: plane to disable | |
1191 | * | |
1192 | * Forces the plane to be disabled. | |
1193 | * | |
1194 | * Used when the plane's current framebuffer is destroyed, | |
1195 | * and when restoring fbdev mode. | |
1196 | */ | |
9125e618 VS |
1197 | void drm_plane_force_disable(struct drm_plane *plane) |
1198 | { | |
0fe27f06 | 1199 | struct drm_framebuffer *old_fb = plane->fb; |
9125e618 VS |
1200 | int ret; |
1201 | ||
0fe27f06 | 1202 | if (!old_fb) |
9125e618 VS |
1203 | return; |
1204 | ||
1205 | ret = plane->funcs->disable_plane(plane); | |
731cce48 | 1206 | if (ret) { |
9125e618 | 1207 | DRM_ERROR("failed to disable plane with busy fb\n"); |
731cce48 DV |
1208 | return; |
1209 | } | |
9125e618 | 1210 | /* disconnect the plane from the fb and crtc: */ |
0fe27f06 | 1211 | __drm_framebuffer_unreference(old_fb); |
9125e618 VS |
1212 | plane->fb = NULL; |
1213 | plane->crtc = NULL; | |
1214 | } | |
1215 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1216 | ||
f453ba04 DA |
1217 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1218 | { | |
1219 | struct drm_property *edid; | |
1220 | struct drm_property *dpms; | |
f453ba04 DA |
1221 | |
1222 | /* | |
1223 | * Standard properties (apply to all connectors) | |
1224 | */ | |
1225 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1226 | DRM_MODE_PROP_IMMUTABLE, | |
1227 | "EDID", 0); | |
1228 | dev->mode_config.edid_property = edid; | |
1229 | ||
4a67d391 SH |
1230 | dpms = drm_property_create_enum(dev, 0, |
1231 | "DPMS", drm_dpms_enum_list, | |
1232 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1233 | dev->mode_config.dpms_property = dpms; |
1234 | ||
1235 | return 0; | |
1236 | } | |
1237 | ||
9922ab5a RC |
1238 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1239 | { | |
1240 | struct drm_property *type; | |
1241 | ||
1242 | /* | |
1243 | * Standard properties (apply to all planes) | |
1244 | */ | |
1245 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
1246 | "type", drm_plane_type_enum_list, | |
1247 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
1248 | dev->mode_config.plane_type_property = type; | |
1249 | ||
1250 | return 0; | |
1251 | } | |
1252 | ||
f453ba04 DA |
1253 | /** |
1254 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1255 | * @dev: DRM device | |
1256 | * | |
1257 | * Called by a driver the first time a DVI-I connector is made. | |
1258 | */ | |
1259 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1260 | { | |
1261 | struct drm_property *dvi_i_selector; | |
1262 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1263 | |
1264 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1265 | return 0; | |
1266 | ||
1267 | dvi_i_selector = | |
4a67d391 | 1268 | drm_property_create_enum(dev, 0, |
f453ba04 | 1269 | "select subconnector", |
4a67d391 | 1270 | drm_dvi_i_select_enum_list, |
f453ba04 | 1271 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1272 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1273 | ||
4a67d391 | 1274 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1275 | "subconnector", |
4a67d391 | 1276 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1277 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1278 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1279 | ||
1280 | return 0; | |
1281 | } | |
1282 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1283 | ||
1284 | /** | |
1285 | * drm_create_tv_properties - create TV specific connector properties | |
1286 | * @dev: DRM device | |
1287 | * @num_modes: number of different TV formats (modes) supported | |
1288 | * @modes: array of pointers to strings containing name of each format | |
1289 | * | |
1290 | * Called by a driver's TV initialization routine, this function creates | |
1291 | * the TV specific connector properties for a given device. Caller is | |
1292 | * responsible for allocating a list of format names and passing them to | |
1293 | * this routine. | |
1294 | */ | |
1295 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1296 | char *modes[]) | |
1297 | { | |
1298 | struct drm_property *tv_selector; | |
1299 | struct drm_property *tv_subconnector; | |
1300 | int i; | |
1301 | ||
1302 | if (dev->mode_config.tv_select_subconnector_property) | |
1303 | return 0; | |
1304 | ||
1305 | /* | |
1306 | * Basic connector properties | |
1307 | */ | |
4a67d391 | 1308 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1309 | "select subconnector", |
4a67d391 | 1310 | drm_tv_select_enum_list, |
f453ba04 | 1311 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1312 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1313 | ||
1314 | tv_subconnector = | |
4a67d391 SH |
1315 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1316 | "subconnector", | |
1317 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1318 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1319 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1320 | ||
1321 | /* | |
1322 | * Other, TV specific properties: margins & TV modes. | |
1323 | */ | |
1324 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1325 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1326 | |
1327 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1328 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1329 | |
1330 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1331 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1332 | |
1333 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1334 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1335 | |
1336 | dev->mode_config.tv_mode_property = | |
1337 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1338 | "mode", num_modes); | |
1339 | for (i = 0; i < num_modes; i++) | |
1340 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1341 | i, modes[i]); | |
1342 | ||
b6b7902e | 1343 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1344 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1345 | |
1346 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1347 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1348 | |
1349 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1350 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1351 | |
a75f0236 | 1352 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1353 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1354 | |
1355 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1356 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1357 | |
1358 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1359 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1360 | |
f453ba04 DA |
1361 | return 0; |
1362 | } | |
1363 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1364 | ||
1365 | /** | |
1366 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1367 | * @dev: DRM device | |
1368 | * | |
1369 | * Called by a driver the first time it's needed, must be attached to desired | |
1370 | * connectors. | |
1371 | */ | |
1372 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1373 | { | |
1374 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1375 | |
1376 | if (dev->mode_config.scaling_mode_property) | |
1377 | return 0; | |
1378 | ||
1379 | scaling_mode = | |
4a67d391 SH |
1380 | drm_property_create_enum(dev, 0, "scaling mode", |
1381 | drm_scaling_mode_enum_list, | |
f453ba04 | 1382 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1383 | |
1384 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1385 | ||
1386 | return 0; | |
1387 | } | |
1388 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1389 | ||
884840aa JB |
1390 | /** |
1391 | * drm_mode_create_dirty_property - create dirty property | |
1392 | * @dev: DRM device | |
1393 | * | |
1394 | * Called by a driver the first time it's needed, must be attached to desired | |
1395 | * connectors. | |
1396 | */ | |
1397 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1398 | { | |
1399 | struct drm_property *dirty_info; | |
884840aa JB |
1400 | |
1401 | if (dev->mode_config.dirty_info_property) | |
1402 | return 0; | |
1403 | ||
1404 | dirty_info = | |
4a67d391 | 1405 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1406 | "dirty", |
4a67d391 | 1407 | drm_dirty_info_enum_list, |
884840aa | 1408 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1409 | dev->mode_config.dirty_info_property = dirty_info; |
1410 | ||
1411 | return 0; | |
1412 | } | |
1413 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1414 | ||
ea9cbb06 | 1415 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1416 | { |
1417 | uint32_t total_objects = 0; | |
1418 | ||
1419 | total_objects += dev->mode_config.num_crtc; | |
1420 | total_objects += dev->mode_config.num_connector; | |
1421 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1422 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1423 | |
f453ba04 DA |
1424 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1425 | if (!group->id_list) | |
1426 | return -ENOMEM; | |
1427 | ||
1428 | group->num_crtcs = 0; | |
1429 | group->num_connectors = 0; | |
1430 | group->num_encoders = 0; | |
3b336ec4 | 1431 | group->num_bridges = 0; |
f453ba04 DA |
1432 | return 0; |
1433 | } | |
1434 | ||
ad222799 DA |
1435 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1436 | { | |
1437 | kfree(group->id_list); | |
1438 | group->id_list = NULL; | |
1439 | } | |
1440 | ||
c8e32cc1 DV |
1441 | /* |
1442 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1443 | * the drm core's responsibility to set up mode control groups. | |
1444 | */ | |
f453ba04 DA |
1445 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1446 | struct drm_mode_group *group) | |
1447 | { | |
1448 | struct drm_crtc *crtc; | |
1449 | struct drm_encoder *encoder; | |
1450 | struct drm_connector *connector; | |
3b336ec4 | 1451 | struct drm_bridge *bridge; |
f453ba04 DA |
1452 | int ret; |
1453 | ||
1454 | if ((ret = drm_mode_group_init(dev, group))) | |
1455 | return ret; | |
1456 | ||
1457 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1458 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1459 | ||
1460 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1461 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1462 | encoder->base.id; | |
1463 | ||
1464 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1465 | group->id_list[group->num_crtcs + group->num_encoders + | |
1466 | group->num_connectors++] = connector->base.id; | |
1467 | ||
3b336ec4 SP |
1468 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1469 | group->id_list[group->num_crtcs + group->num_encoders + | |
1470 | group->num_connectors + group->num_bridges++] = | |
1471 | bridge->base.id; | |
1472 | ||
f453ba04 DA |
1473 | return 0; |
1474 | } | |
9c1dfc55 | 1475 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1476 | |
f453ba04 DA |
1477 | /** |
1478 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1479 | * @out: drm_mode_modeinfo struct to return to the user | |
1480 | * @in: drm_display_mode to use | |
1481 | * | |
f453ba04 DA |
1482 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1483 | * the user. | |
1484 | */ | |
93bbf6db VS |
1485 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1486 | const struct drm_display_mode *in) | |
f453ba04 | 1487 | { |
e36fae38 VS |
1488 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1489 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1490 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1491 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1492 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1493 | "timing values too large for mode info\n"); | |
1494 | ||
f453ba04 DA |
1495 | out->clock = in->clock; |
1496 | out->hdisplay = in->hdisplay; | |
1497 | out->hsync_start = in->hsync_start; | |
1498 | out->hsync_end = in->hsync_end; | |
1499 | out->htotal = in->htotal; | |
1500 | out->hskew = in->hskew; | |
1501 | out->vdisplay = in->vdisplay; | |
1502 | out->vsync_start = in->vsync_start; | |
1503 | out->vsync_end = in->vsync_end; | |
1504 | out->vtotal = in->vtotal; | |
1505 | out->vscan = in->vscan; | |
1506 | out->vrefresh = in->vrefresh; | |
1507 | out->flags = in->flags; | |
1508 | out->type = in->type; | |
1509 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1510 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1511 | } | |
1512 | ||
1513 | /** | |
74afee7d | 1514 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1515 | * @out: drm_display_mode to return to the user |
1516 | * @in: drm_mode_modeinfo to use | |
1517 | * | |
f453ba04 DA |
1518 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1519 | * the caller. | |
90367bf6 | 1520 | * |
c8e32cc1 | 1521 | * Returns: |
90367bf6 | 1522 | * Zero on success, errno on failure. |
f453ba04 | 1523 | */ |
93bbf6db VS |
1524 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1525 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1526 | { |
90367bf6 VS |
1527 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1528 | return -ERANGE; | |
1529 | ||
5848ad40 DL |
1530 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1531 | return -EINVAL; | |
1532 | ||
f453ba04 DA |
1533 | out->clock = in->clock; |
1534 | out->hdisplay = in->hdisplay; | |
1535 | out->hsync_start = in->hsync_start; | |
1536 | out->hsync_end = in->hsync_end; | |
1537 | out->htotal = in->htotal; | |
1538 | out->hskew = in->hskew; | |
1539 | out->vdisplay = in->vdisplay; | |
1540 | out->vsync_start = in->vsync_start; | |
1541 | out->vsync_end = in->vsync_end; | |
1542 | out->vtotal = in->vtotal; | |
1543 | out->vscan = in->vscan; | |
1544 | out->vrefresh = in->vrefresh; | |
1545 | out->flags = in->flags; | |
1546 | out->type = in->type; | |
1547 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1548 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1549 | |
1550 | return 0; | |
f453ba04 DA |
1551 | } |
1552 | ||
1553 | /** | |
1554 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1555 | * @dev: drm device for the ioctl |
1556 | * @data: data pointer for the ioctl | |
1557 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1558 | * |
f453ba04 DA |
1559 | * Construct a set of configuration description structures and return |
1560 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1561 | * | |
1562 | * Called by the user via ioctl. | |
1563 | * | |
c8e32cc1 | 1564 | * Returns: |
f453ba04 DA |
1565 | * Zero on success, errno on failure. |
1566 | */ | |
1567 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1568 | struct drm_file *file_priv) | |
1569 | { | |
1570 | struct drm_mode_card_res *card_res = data; | |
1571 | struct list_head *lh; | |
1572 | struct drm_framebuffer *fb; | |
1573 | struct drm_connector *connector; | |
1574 | struct drm_crtc *crtc; | |
1575 | struct drm_encoder *encoder; | |
1576 | int ret = 0; | |
1577 | int connector_count = 0; | |
1578 | int crtc_count = 0; | |
1579 | int fb_count = 0; | |
1580 | int encoder_count = 0; | |
1581 | int copied = 0, i; | |
1582 | uint32_t __user *fb_id; | |
1583 | uint32_t __user *crtc_id; | |
1584 | uint32_t __user *connector_id; | |
1585 | uint32_t __user *encoder_id; | |
1586 | struct drm_mode_group *mode_group; | |
1587 | ||
fb3b06c8 DA |
1588 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1589 | return -EINVAL; | |
1590 | ||
f453ba04 | 1591 | |
4b096ac1 | 1592 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1593 | /* |
1594 | * For the non-control nodes we need to limit the list of resources | |
1595 | * by IDs in the group list for this node | |
1596 | */ | |
1597 | list_for_each(lh, &file_priv->fbs) | |
1598 | fb_count++; | |
1599 | ||
4b096ac1 DV |
1600 | /* handle this in 4 parts */ |
1601 | /* FBs */ | |
1602 | if (card_res->count_fbs >= fb_count) { | |
1603 | copied = 0; | |
1604 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1605 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1606 | if (put_user(fb->base.id, fb_id + copied)) { | |
1607 | mutex_unlock(&file_priv->fbs_lock); | |
1608 | return -EFAULT; | |
1609 | } | |
1610 | copied++; | |
1611 | } | |
1612 | } | |
1613 | card_res->count_fbs = fb_count; | |
1614 | mutex_unlock(&file_priv->fbs_lock); | |
1615 | ||
1616 | drm_modeset_lock_all(dev); | |
43683057 | 1617 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1618 | |
09f308f7 | 1619 | mode_group = NULL; |
f453ba04 DA |
1620 | list_for_each(lh, &dev->mode_config.crtc_list) |
1621 | crtc_count++; | |
1622 | ||
1623 | list_for_each(lh, &dev->mode_config.connector_list) | |
1624 | connector_count++; | |
1625 | ||
1626 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1627 | encoder_count++; | |
1628 | } else { | |
1629 | ||
09f308f7 | 1630 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1631 | crtc_count = mode_group->num_crtcs; |
1632 | connector_count = mode_group->num_connectors; | |
1633 | encoder_count = mode_group->num_encoders; | |
1634 | } | |
1635 | ||
1636 | card_res->max_height = dev->mode_config.max_height; | |
1637 | card_res->min_height = dev->mode_config.min_height; | |
1638 | card_res->max_width = dev->mode_config.max_width; | |
1639 | card_res->min_width = dev->mode_config.min_width; | |
1640 | ||
f453ba04 DA |
1641 | /* CRTCs */ |
1642 | if (card_res->count_crtcs >= crtc_count) { | |
1643 | copied = 0; | |
1644 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1645 | if (!mode_group) { |
f453ba04 DA |
1646 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1647 | head) { | |
9440106b | 1648 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1649 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1650 | ret = -EFAULT; | |
1651 | goto out; | |
1652 | } | |
1653 | copied++; | |
1654 | } | |
1655 | } else { | |
1656 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1657 | if (put_user(mode_group->id_list[i], | |
1658 | crtc_id + copied)) { | |
1659 | ret = -EFAULT; | |
1660 | goto out; | |
1661 | } | |
1662 | copied++; | |
1663 | } | |
1664 | } | |
1665 | } | |
1666 | card_res->count_crtcs = crtc_count; | |
1667 | ||
1668 | /* Encoders */ | |
1669 | if (card_res->count_encoders >= encoder_count) { | |
1670 | copied = 0; | |
1671 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1672 | if (!mode_group) { |
f453ba04 DA |
1673 | list_for_each_entry(encoder, |
1674 | &dev->mode_config.encoder_list, | |
1675 | head) { | |
9440106b | 1676 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1677 | encoder->name); |
f453ba04 DA |
1678 | if (put_user(encoder->base.id, encoder_id + |
1679 | copied)) { | |
1680 | ret = -EFAULT; | |
1681 | goto out; | |
1682 | } | |
1683 | copied++; | |
1684 | } | |
1685 | } else { | |
1686 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1687 | if (put_user(mode_group->id_list[i], | |
1688 | encoder_id + copied)) { | |
1689 | ret = -EFAULT; | |
1690 | goto out; | |
1691 | } | |
1692 | copied++; | |
1693 | } | |
1694 | ||
1695 | } | |
1696 | } | |
1697 | card_res->count_encoders = encoder_count; | |
1698 | ||
1699 | /* Connectors */ | |
1700 | if (card_res->count_connectors >= connector_count) { | |
1701 | copied = 0; | |
1702 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1703 | if (!mode_group) { |
f453ba04 DA |
1704 | list_for_each_entry(connector, |
1705 | &dev->mode_config.connector_list, | |
1706 | head) { | |
9440106b JG |
1707 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1708 | connector->base.id, | |
25933820 | 1709 | connector->name); |
f453ba04 DA |
1710 | if (put_user(connector->base.id, |
1711 | connector_id + copied)) { | |
1712 | ret = -EFAULT; | |
1713 | goto out; | |
1714 | } | |
1715 | copied++; | |
1716 | } | |
1717 | } else { | |
1718 | int start = mode_group->num_crtcs + | |
1719 | mode_group->num_encoders; | |
1720 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1721 | if (put_user(mode_group->id_list[i], | |
1722 | connector_id + copied)) { | |
1723 | ret = -EFAULT; | |
1724 | goto out; | |
1725 | } | |
1726 | copied++; | |
1727 | } | |
1728 | } | |
1729 | } | |
1730 | card_res->count_connectors = connector_count; | |
1731 | ||
9440106b | 1732 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1733 | card_res->count_connectors, card_res->count_encoders); |
1734 | ||
1735 | out: | |
84849903 | 1736 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1737 | return ret; |
1738 | } | |
1739 | ||
1740 | /** | |
1741 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1742 | * @dev: drm device for the ioctl |
1743 | * @data: data pointer for the ioctl | |
1744 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1745 | * |
f453ba04 DA |
1746 | * Construct a CRTC configuration structure to return to the user. |
1747 | * | |
1748 | * Called by the user via ioctl. | |
1749 | * | |
c8e32cc1 | 1750 | * Returns: |
f453ba04 DA |
1751 | * Zero on success, errno on failure. |
1752 | */ | |
1753 | int drm_mode_getcrtc(struct drm_device *dev, | |
1754 | void *data, struct drm_file *file_priv) | |
1755 | { | |
1756 | struct drm_mode_crtc *crtc_resp = data; | |
1757 | struct drm_crtc *crtc; | |
f453ba04 DA |
1758 | int ret = 0; |
1759 | ||
fb3b06c8 DA |
1760 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1761 | return -EINVAL; | |
1762 | ||
84849903 | 1763 | drm_modeset_lock_all(dev); |
f453ba04 | 1764 | |
a2b34e22 RC |
1765 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
1766 | if (!crtc) { | |
f27657f2 | 1767 | ret = -ENOENT; |
f453ba04 DA |
1768 | goto out; |
1769 | } | |
f453ba04 DA |
1770 | |
1771 | crtc_resp->x = crtc->x; | |
1772 | crtc_resp->y = crtc->y; | |
1773 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
1774 | if (crtc->primary->fb) |
1775 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1776 | else |
1777 | crtc_resp->fb_id = 0; | |
1778 | ||
1779 | if (crtc->enabled) { | |
1780 | ||
1781 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1782 | crtc_resp->mode_valid = 1; | |
1783 | ||
1784 | } else { | |
1785 | crtc_resp->mode_valid = 0; | |
1786 | } | |
1787 | ||
1788 | out: | |
84849903 | 1789 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1790 | return ret; |
1791 | } | |
1792 | ||
61d8e328 DL |
1793 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1794 | const struct drm_file *file_priv) | |
1795 | { | |
1796 | /* | |
1797 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1798 | * modes, don't expose them. | |
1799 | */ | |
1800 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1801 | return false; | |
1802 | ||
1803 | return true; | |
1804 | } | |
1805 | ||
f453ba04 DA |
1806 | /** |
1807 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1808 | * @dev: drm device for the ioctl |
1809 | * @data: data pointer for the ioctl | |
1810 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1811 | * |
f453ba04 DA |
1812 | * Construct a connector configuration structure to return to the user. |
1813 | * | |
1814 | * Called by the user via ioctl. | |
1815 | * | |
c8e32cc1 | 1816 | * Returns: |
f453ba04 DA |
1817 | * Zero on success, errno on failure. |
1818 | */ | |
1819 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1820 | struct drm_file *file_priv) | |
1821 | { | |
1822 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 DA |
1823 | struct drm_connector *connector; |
1824 | struct drm_display_mode *mode; | |
1825 | int mode_count = 0; | |
1826 | int props_count = 0; | |
1827 | int encoders_count = 0; | |
1828 | int ret = 0; | |
1829 | int copied = 0; | |
1830 | int i; | |
1831 | struct drm_mode_modeinfo u_mode; | |
1832 | struct drm_mode_modeinfo __user *mode_ptr; | |
1833 | uint32_t __user *prop_ptr; | |
1834 | uint64_t __user *prop_values; | |
1835 | uint32_t __user *encoder_ptr; | |
1836 | ||
fb3b06c8 DA |
1837 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1838 | return -EINVAL; | |
1839 | ||
f453ba04 DA |
1840 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1841 | ||
9440106b | 1842 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1843 | |
7b24056b | 1844 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 1845 | |
a2b34e22 RC |
1846 | connector = drm_connector_find(dev, out_resp->connector_id); |
1847 | if (!connector) { | |
f27657f2 | 1848 | ret = -ENOENT; |
f453ba04 DA |
1849 | goto out; |
1850 | } | |
f453ba04 | 1851 | |
7f88a9be | 1852 | props_count = connector->properties.count; |
f453ba04 DA |
1853 | |
1854 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1855 | if (connector->encoder_ids[i] != 0) { | |
1856 | encoders_count++; | |
1857 | } | |
1858 | } | |
1859 | ||
1860 | if (out_resp->count_modes == 0) { | |
1861 | connector->funcs->fill_modes(connector, | |
1862 | dev->mode_config.max_width, | |
1863 | dev->mode_config.max_height); | |
1864 | } | |
1865 | ||
1866 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1867 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1868 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1869 | mode_count++; | |
f453ba04 DA |
1870 | |
1871 | out_resp->connector_id = connector->base.id; | |
1872 | out_resp->connector_type = connector->connector_type; | |
1873 | out_resp->connector_type_id = connector->connector_type_id; | |
1874 | out_resp->mm_width = connector->display_info.width_mm; | |
1875 | out_resp->mm_height = connector->display_info.height_mm; | |
1876 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1877 | out_resp->connection = connector->status; | |
832fd395 | 1878 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
f453ba04 DA |
1879 | if (connector->encoder) |
1880 | out_resp->encoder_id = connector->encoder->base.id; | |
1881 | else | |
1882 | out_resp->encoder_id = 0; | |
832fd395 | 1883 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
f453ba04 DA |
1884 | |
1885 | /* | |
1886 | * This ioctl is called twice, once to determine how much space is | |
1887 | * needed, and the 2nd time to fill it. | |
1888 | */ | |
1889 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1890 | copied = 0; | |
81f6c7f8 | 1891 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 1892 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
1893 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
1894 | continue; | |
1895 | ||
f453ba04 DA |
1896 | drm_crtc_convert_to_umode(&u_mode, mode); |
1897 | if (copy_to_user(mode_ptr + copied, | |
1898 | &u_mode, sizeof(u_mode))) { | |
1899 | ret = -EFAULT; | |
1900 | goto out; | |
1901 | } | |
1902 | copied++; | |
1903 | } | |
1904 | } | |
1905 | out_resp->count_modes = mode_count; | |
1906 | ||
1907 | if ((out_resp->count_props >= props_count) && props_count) { | |
1908 | copied = 0; | |
81f6c7f8 VS |
1909 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1910 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1911 | for (i = 0; i < connector->properties.count; i++) { |
1912 | if (put_user(connector->properties.ids[i], | |
1913 | prop_ptr + copied)) { | |
1914 | ret = -EFAULT; | |
1915 | goto out; | |
1916 | } | |
f453ba04 | 1917 | |
7f88a9be PZ |
1918 | if (put_user(connector->properties.values[i], |
1919 | prop_values + copied)) { | |
1920 | ret = -EFAULT; | |
1921 | goto out; | |
f453ba04 | 1922 | } |
7f88a9be | 1923 | copied++; |
f453ba04 DA |
1924 | } |
1925 | } | |
1926 | out_resp->count_props = props_count; | |
1927 | ||
1928 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1929 | copied = 0; | |
81f6c7f8 | 1930 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1931 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1932 | if (connector->encoder_ids[i] != 0) { | |
1933 | if (put_user(connector->encoder_ids[i], | |
1934 | encoder_ptr + copied)) { | |
1935 | ret = -EFAULT; | |
1936 | goto out; | |
1937 | } | |
1938 | copied++; | |
1939 | } | |
1940 | } | |
1941 | } | |
1942 | out_resp->count_encoders = encoders_count; | |
1943 | ||
1944 | out: | |
7b24056b DV |
1945 | mutex_unlock(&dev->mode_config.mutex); |
1946 | ||
f453ba04 DA |
1947 | return ret; |
1948 | } | |
1949 | ||
c8e32cc1 DV |
1950 | /** |
1951 | * drm_mode_getencoder - get encoder configuration | |
1952 | * @dev: drm device for the ioctl | |
1953 | * @data: data pointer for the ioctl | |
1954 | * @file_priv: drm file for the ioctl call | |
1955 | * | |
1956 | * Construct a encoder configuration structure to return to the user. | |
1957 | * | |
1958 | * Called by the user via ioctl. | |
1959 | * | |
1960 | * Returns: | |
1961 | * Zero on success, errno on failure. | |
1962 | */ | |
f453ba04 DA |
1963 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
1964 | struct drm_file *file_priv) | |
1965 | { | |
1966 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 DA |
1967 | struct drm_encoder *encoder; |
1968 | int ret = 0; | |
1969 | ||
fb3b06c8 DA |
1970 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1971 | return -EINVAL; | |
1972 | ||
84849903 | 1973 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
1974 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
1975 | if (!encoder) { | |
f27657f2 | 1976 | ret = -ENOENT; |
f453ba04 DA |
1977 | goto out; |
1978 | } | |
f453ba04 DA |
1979 | |
1980 | if (encoder->crtc) | |
1981 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1982 | else | |
1983 | enc_resp->crtc_id = 0; | |
1984 | enc_resp->encoder_type = encoder->encoder_type; | |
1985 | enc_resp->encoder_id = encoder->base.id; | |
1986 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1987 | enc_resp->possible_clones = encoder->possible_clones; | |
1988 | ||
1989 | out: | |
84849903 | 1990 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1991 | return ret; |
1992 | } | |
1993 | ||
8cf5c917 | 1994 | /** |
c8e32cc1 | 1995 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
1996 | * @dev: DRM device |
1997 | * @data: ioctl data | |
1998 | * @file_priv: DRM file info | |
1999 | * | |
c8e32cc1 DV |
2000 | * Construct a list of plane ids to return to the user. |
2001 | * | |
2002 | * Called by the user via ioctl. | |
2003 | * | |
2004 | * Returns: | |
2005 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2006 | */ |
2007 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2008 | struct drm_file *file_priv) |
8cf5c917 JB |
2009 | { |
2010 | struct drm_mode_get_plane_res *plane_resp = data; | |
2011 | struct drm_mode_config *config; | |
2012 | struct drm_plane *plane; | |
2013 | uint32_t __user *plane_ptr; | |
2014 | int copied = 0, ret = 0; | |
681e7ec7 | 2015 | unsigned num_planes; |
8cf5c917 JB |
2016 | |
2017 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2018 | return -EINVAL; | |
2019 | ||
84849903 | 2020 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2021 | config = &dev->mode_config; |
2022 | ||
681e7ec7 MR |
2023 | if (file_priv->universal_planes) |
2024 | num_planes = config->num_total_plane; | |
2025 | else | |
2026 | num_planes = config->num_overlay_plane; | |
2027 | ||
8cf5c917 JB |
2028 | /* |
2029 | * This ioctl is called twice, once to determine how much space is | |
2030 | * needed, and the 2nd time to fill it. | |
2031 | */ | |
681e7ec7 MR |
2032 | if (num_planes && |
2033 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2034 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
2035 | |
2036 | list_for_each_entry(plane, &config->plane_list, head) { | |
681e7ec7 MR |
2037 | /* |
2038 | * Unless userspace set the 'universal planes' | |
2039 | * capability bit, only advertise overlays. | |
2040 | */ | |
2041 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2042 | !file_priv->universal_planes) | |
e27dde3e MR |
2043 | continue; |
2044 | ||
8cf5c917 JB |
2045 | if (put_user(plane->base.id, plane_ptr + copied)) { |
2046 | ret = -EFAULT; | |
2047 | goto out; | |
2048 | } | |
2049 | copied++; | |
2050 | } | |
2051 | } | |
681e7ec7 | 2052 | plane_resp->count_planes = num_planes; |
8cf5c917 JB |
2053 | |
2054 | out: | |
84849903 | 2055 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2056 | return ret; |
2057 | } | |
2058 | ||
2059 | /** | |
c8e32cc1 | 2060 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2061 | * @dev: DRM device |
2062 | * @data: ioctl data | |
2063 | * @file_priv: DRM file info | |
2064 | * | |
c8e32cc1 DV |
2065 | * Construct a plane configuration structure to return to the user. |
2066 | * | |
2067 | * Called by the user via ioctl. | |
2068 | * | |
2069 | * Returns: | |
2070 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2071 | */ |
2072 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2073 | struct drm_file *file_priv) |
8cf5c917 JB |
2074 | { |
2075 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2076 | struct drm_plane *plane; |
2077 | uint32_t __user *format_ptr; | |
2078 | int ret = 0; | |
2079 | ||
2080 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2081 | return -EINVAL; | |
2082 | ||
84849903 | 2083 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2084 | plane = drm_plane_find(dev, plane_resp->plane_id); |
2085 | if (!plane) { | |
8cf5c917 JB |
2086 | ret = -ENOENT; |
2087 | goto out; | |
2088 | } | |
8cf5c917 JB |
2089 | |
2090 | if (plane->crtc) | |
2091 | plane_resp->crtc_id = plane->crtc->base.id; | |
2092 | else | |
2093 | plane_resp->crtc_id = 0; | |
2094 | ||
2095 | if (plane->fb) | |
2096 | plane_resp->fb_id = plane->fb->base.id; | |
2097 | else | |
2098 | plane_resp->fb_id = 0; | |
2099 | ||
2100 | plane_resp->plane_id = plane->base.id; | |
2101 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2102 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2103 | |
2104 | /* | |
2105 | * This ioctl is called twice, once to determine how much space is | |
2106 | * needed, and the 2nd time to fill it. | |
2107 | */ | |
2108 | if (plane->format_count && | |
2109 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2110 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2111 | if (copy_to_user(format_ptr, |
2112 | plane->format_types, | |
2113 | sizeof(uint32_t) * plane->format_count)) { | |
2114 | ret = -EFAULT; | |
2115 | goto out; | |
2116 | } | |
2117 | } | |
2118 | plane_resp->count_format_types = plane->format_count; | |
2119 | ||
2120 | out: | |
84849903 | 2121 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2122 | return ret; |
2123 | } | |
2124 | ||
b36552b3 MR |
2125 | /* |
2126 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2127 | * |
b36552b3 MR |
2128 | * Note that we assume an extra reference has already been taken on fb. If the |
2129 | * update fails, this reference will be dropped before return; if it succeeds, | |
2130 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2131 | * |
b36552b3 | 2132 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2133 | */ |
b36552b3 MR |
2134 | static int setplane_internal(struct drm_crtc *crtc, |
2135 | struct drm_plane *plane, | |
2136 | struct drm_framebuffer *fb, | |
2137 | int32_t crtc_x, int32_t crtc_y, | |
2138 | uint32_t crtc_w, uint32_t crtc_h, | |
2139 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2140 | uint32_t src_x, uint32_t src_y, | |
2141 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2142 | { |
b36552b3 MR |
2143 | struct drm_device *dev = crtc->dev; |
2144 | struct drm_framebuffer *old_fb = NULL; | |
8cf5c917 | 2145 | int ret = 0; |
42ef8789 | 2146 | unsigned int fb_width, fb_height; |
62443be6 | 2147 | int i; |
8cf5c917 | 2148 | |
8cf5c917 | 2149 | /* No fb means shut it down */ |
b36552b3 | 2150 | if (!fb) { |
6c2a7532 DV |
2151 | drm_modeset_lock_all(dev); |
2152 | old_fb = plane->fb; | |
731cce48 DV |
2153 | ret = plane->funcs->disable_plane(plane); |
2154 | if (!ret) { | |
2155 | plane->crtc = NULL; | |
2156 | plane->fb = NULL; | |
2157 | } else { | |
2158 | old_fb = NULL; | |
2159 | } | |
6c2a7532 | 2160 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2161 | goto out; |
2162 | } | |
2163 | ||
7f994f3f MR |
2164 | /* Check whether this plane is usable on this CRTC */ |
2165 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2166 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2167 | ret = -EINVAL; | |
2168 | goto out; | |
2169 | } | |
2170 | ||
62443be6 VS |
2171 | /* Check whether this plane supports the fb pixel format. */ |
2172 | for (i = 0; i < plane->format_count; i++) | |
2173 | if (fb->pixel_format == plane->format_types[i]) | |
2174 | break; | |
2175 | if (i == plane->format_count) { | |
6ba6d03e VS |
2176 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2177 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2178 | ret = -EINVAL; |
2179 | goto out; | |
2180 | } | |
2181 | ||
42ef8789 VS |
2182 | fb_width = fb->width << 16; |
2183 | fb_height = fb->height << 16; | |
2184 | ||
2185 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2186 | if (src_w > fb_width || |
2187 | src_x > fb_width - src_w || | |
2188 | src_h > fb_height || | |
2189 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2190 | DRM_DEBUG_KMS("Invalid source coordinates " |
2191 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2192 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2193 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2194 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2195 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2196 | ret = -ENOSPC; |
2197 | goto out; | |
2198 | } | |
2199 | ||
6c2a7532 | 2200 | drm_modeset_lock_all(dev); |
0fe27f06 | 2201 | old_fb = plane->fb; |
8cf5c917 | 2202 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2203 | crtc_x, crtc_y, crtc_w, crtc_h, |
2204 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2205 | if (!ret) { |
2206 | plane->crtc = crtc; | |
2207 | plane->fb = fb; | |
35f8badc | 2208 | fb = NULL; |
0fe27f06 DV |
2209 | } else { |
2210 | old_fb = NULL; | |
8cf5c917 | 2211 | } |
6c2a7532 | 2212 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2213 | |
2214 | out: | |
6c2a7532 DV |
2215 | if (fb) |
2216 | drm_framebuffer_unreference(fb); | |
2217 | if (old_fb) | |
2218 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
2219 | |
2220 | return ret; | |
b36552b3 MR |
2221 | |
2222 | } | |
2223 | ||
2224 | /** | |
2225 | * drm_mode_setplane - configure a plane's configuration | |
2226 | * @dev: DRM device | |
2227 | * @data: ioctl data* | |
2228 | * @file_priv: DRM file info | |
2229 | * | |
2230 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2231 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2232 | * valid crtc). | |
2233 | * | |
2234 | * Returns: | |
2235 | * Zero on success, errno on failure. | |
2236 | */ | |
2237 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2238 | struct drm_file *file_priv) | |
2239 | { | |
2240 | struct drm_mode_set_plane *plane_req = data; | |
2241 | struct drm_mode_object *obj; | |
2242 | struct drm_plane *plane; | |
2243 | struct drm_crtc *crtc = NULL; | |
2244 | struct drm_framebuffer *fb = NULL; | |
2245 | ||
2246 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2247 | return -EINVAL; | |
2248 | ||
2249 | /* Give drivers some help against integer overflows */ | |
2250 | if (plane_req->crtc_w > INT_MAX || | |
2251 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2252 | plane_req->crtc_h > INT_MAX || | |
2253 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2254 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2255 | plane_req->crtc_w, plane_req->crtc_h, | |
2256 | plane_req->crtc_x, plane_req->crtc_y); | |
2257 | return -ERANGE; | |
2258 | } | |
2259 | ||
2260 | /* | |
2261 | * First, find the plane, crtc, and fb objects. If not available, | |
2262 | * we don't bother to call the driver. | |
2263 | */ | |
2264 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
2265 | DRM_MODE_OBJECT_PLANE); | |
2266 | if (!obj) { | |
2267 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
2268 | plane_req->plane_id); | |
2269 | return -ENOENT; | |
2270 | } | |
2271 | plane = obj_to_plane(obj); | |
2272 | ||
2273 | if (plane_req->fb_id) { | |
2274 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2275 | if (!fb) { | |
2276 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2277 | plane_req->fb_id); | |
2278 | return -ENOENT; | |
2279 | } | |
2280 | ||
2281 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
2282 | DRM_MODE_OBJECT_CRTC); | |
2283 | if (!obj) { | |
2284 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
2285 | plane_req->crtc_id); | |
2286 | return -ENOENT; | |
2287 | } | |
2288 | crtc = obj_to_crtc(obj); | |
2289 | } | |
2290 | ||
2291 | return setplane_internal(crtc, plane, fb, | |
2292 | plane_req->crtc_x, plane_req->crtc_y, | |
2293 | plane_req->crtc_w, plane_req->crtc_h, | |
2294 | plane_req->src_x, plane_req->src_y, | |
2295 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2296 | } |
2297 | ||
2d13b679 DV |
2298 | /** |
2299 | * drm_mode_set_config_internal - helper to call ->set_config | |
2300 | * @set: modeset config to set | |
2301 | * | |
2302 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2303 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2304 | * |
2305 | * Returns: | |
2306 | * Zero on success, errno on failure. | |
2d13b679 DV |
2307 | */ |
2308 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2309 | { | |
2310 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2311 | struct drm_framebuffer *fb; |
2312 | struct drm_crtc *tmp; | |
b0d12325 DV |
2313 | int ret; |
2314 | ||
5cef29aa DV |
2315 | /* |
2316 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2317 | * connectors from it), hence we need to refcount the fbs across all | |
2318 | * crtcs. Atomic modeset will have saner semantics ... | |
2319 | */ | |
2320 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
f4510a27 | 2321 | tmp->old_fb = tmp->primary->fb; |
5cef29aa | 2322 | |
b0d12325 | 2323 | fb = set->fb; |
2d13b679 | 2324 | |
b0d12325 DV |
2325 | ret = crtc->funcs->set_config(set); |
2326 | if (ret == 0) { | |
e13161af | 2327 | crtc->primary->crtc = crtc; |
0fe27f06 | 2328 | crtc->primary->fb = fb; |
5cef29aa | 2329 | } |
cc85e121 | 2330 | |
5cef29aa | 2331 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2332 | if (tmp->primary->fb) |
2333 | drm_framebuffer_reference(tmp->primary->fb); | |
5cef29aa DV |
2334 | if (tmp->old_fb) |
2335 | drm_framebuffer_unreference(tmp->old_fb); | |
b0d12325 DV |
2336 | } |
2337 | ||
2338 | return ret; | |
2d13b679 DV |
2339 | } |
2340 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2341 | ||
af93629d MR |
2342 | /** |
2343 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2344 | * CRTC viewport | |
2345 | * @crtc: CRTC that framebuffer will be displayed on | |
2346 | * @x: x panning | |
2347 | * @y: y panning | |
2348 | * @mode: mode that framebuffer will be displayed under | |
2349 | * @fb: framebuffer to check size of | |
c11e9283 | 2350 | */ |
af93629d MR |
2351 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2352 | int x, int y, | |
2353 | const struct drm_display_mode *mode, | |
2354 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2355 | |
2356 | { | |
2357 | int hdisplay, vdisplay; | |
2358 | ||
2359 | hdisplay = mode->hdisplay; | |
2360 | vdisplay = mode->vdisplay; | |
2361 | ||
a0c1bbb0 DL |
2362 | if (drm_mode_is_stereo(mode)) { |
2363 | struct drm_display_mode adjusted = *mode; | |
2364 | ||
2365 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2366 | hdisplay = adjusted.crtc_hdisplay; | |
2367 | vdisplay = adjusted.crtc_vdisplay; | |
2368 | } | |
2369 | ||
c11e9283 DL |
2370 | if (crtc->invert_dimensions) |
2371 | swap(hdisplay, vdisplay); | |
2372 | ||
2373 | if (hdisplay > fb->width || | |
2374 | vdisplay > fb->height || | |
2375 | x > fb->width - hdisplay || | |
2376 | y > fb->height - vdisplay) { | |
2377 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2378 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2379 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2380 | return -ENOSPC; | |
2381 | } | |
2382 | ||
2383 | return 0; | |
2384 | } | |
af93629d | 2385 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2386 | |
f453ba04 DA |
2387 | /** |
2388 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2389 | * @dev: drm device for the ioctl |
2390 | * @data: data pointer for the ioctl | |
2391 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2392 | * |
f453ba04 DA |
2393 | * Build a new CRTC configuration based on user request. |
2394 | * | |
2395 | * Called by the user via ioctl. | |
2396 | * | |
c8e32cc1 | 2397 | * Returns: |
f453ba04 DA |
2398 | * Zero on success, errno on failure. |
2399 | */ | |
2400 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2401 | struct drm_file *file_priv) | |
2402 | { | |
2403 | struct drm_mode_config *config = &dev->mode_config; | |
2404 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2405 | struct drm_crtc *crtc; |
f453ba04 DA |
2406 | struct drm_connector **connector_set = NULL, *connector; |
2407 | struct drm_framebuffer *fb = NULL; | |
2408 | struct drm_display_mode *mode = NULL; | |
2409 | struct drm_mode_set set; | |
2410 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2411 | int ret; |
f453ba04 DA |
2412 | int i; |
2413 | ||
fb3b06c8 DA |
2414 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2415 | return -EINVAL; | |
2416 | ||
1d97e915 VS |
2417 | /* For some reason crtc x/y offsets are signed internally. */ |
2418 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2419 | return -ERANGE; | |
2420 | ||
84849903 | 2421 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2422 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2423 | if (!crtc) { | |
58367ed6 | 2424 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2425 | ret = -ENOENT; |
f453ba04 DA |
2426 | goto out; |
2427 | } | |
9440106b | 2428 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2429 | |
2430 | if (crtc_req->mode_valid) { | |
2431 | /* If we have a mode we need a framebuffer. */ | |
2432 | /* If we pass -1, set the mode with the currently bound fb */ | |
2433 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2434 | if (!crtc->primary->fb) { |
6653cc8d VS |
2435 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2436 | ret = -EINVAL; | |
2437 | goto out; | |
f453ba04 | 2438 | } |
f4510a27 | 2439 | fb = crtc->primary->fb; |
b0d12325 DV |
2440 | /* Make refcounting symmetric with the lookup path. */ |
2441 | drm_framebuffer_reference(fb); | |
f453ba04 | 2442 | } else { |
786b99ed DV |
2443 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2444 | if (!fb) { | |
58367ed6 ZY |
2445 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2446 | crtc_req->fb_id); | |
37c4e705 | 2447 | ret = -ENOENT; |
f453ba04 DA |
2448 | goto out; |
2449 | } | |
f453ba04 DA |
2450 | } |
2451 | ||
2452 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2453 | if (!mode) { |
2454 | ret = -ENOMEM; | |
2455 | goto out; | |
2456 | } | |
2457 | ||
90367bf6 VS |
2458 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2459 | if (ret) { | |
2460 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2461 | goto out; | |
2462 | } | |
2463 | ||
f453ba04 | 2464 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2465 | |
c11e9283 DL |
2466 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2467 | mode, fb); | |
2468 | if (ret) | |
5f61bb42 | 2469 | goto out; |
c11e9283 | 2470 | |
f453ba04 DA |
2471 | } |
2472 | ||
2473 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2474 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2475 | ret = -EINVAL; |
2476 | goto out; | |
2477 | } | |
2478 | ||
7781de74 | 2479 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2480 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2481 | crtc_req->count_connectors); |
2482 | ret = -EINVAL; | |
2483 | goto out; | |
2484 | } | |
2485 | ||
2486 | if (crtc_req->count_connectors > 0) { | |
2487 | u32 out_id; | |
2488 | ||
2489 | /* Avoid unbounded kernel memory allocation */ | |
2490 | if (crtc_req->count_connectors > config->num_connector) { | |
2491 | ret = -EINVAL; | |
2492 | goto out; | |
2493 | } | |
2494 | ||
2495 | connector_set = kmalloc(crtc_req->count_connectors * | |
2496 | sizeof(struct drm_connector *), | |
2497 | GFP_KERNEL); | |
2498 | if (!connector_set) { | |
2499 | ret = -ENOMEM; | |
2500 | goto out; | |
2501 | } | |
2502 | ||
2503 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2504 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2505 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2506 | ret = -EFAULT; | |
2507 | goto out; | |
2508 | } | |
2509 | ||
a2b34e22 RC |
2510 | connector = drm_connector_find(dev, out_id); |
2511 | if (!connector) { | |
58367ed6 ZY |
2512 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2513 | out_id); | |
f27657f2 | 2514 | ret = -ENOENT; |
f453ba04 DA |
2515 | goto out; |
2516 | } | |
9440106b JG |
2517 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2518 | connector->base.id, | |
25933820 | 2519 | connector->name); |
f453ba04 DA |
2520 | |
2521 | connector_set[i] = connector; | |
2522 | } | |
2523 | } | |
2524 | ||
2525 | set.crtc = crtc; | |
2526 | set.x = crtc_req->x; | |
2527 | set.y = crtc_req->y; | |
2528 | set.mode = mode; | |
2529 | set.connectors = connector_set; | |
2530 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2531 | set.fb = fb; |
2d13b679 | 2532 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2533 | |
2534 | out: | |
b0d12325 DV |
2535 | if (fb) |
2536 | drm_framebuffer_unreference(fb); | |
2537 | ||
f453ba04 | 2538 | kfree(connector_set); |
ee34ab5b | 2539 | drm_mode_destroy(dev, mode); |
84849903 | 2540 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2541 | return ret; |
2542 | } | |
2543 | ||
4c813d4d DA |
2544 | static int drm_mode_cursor_common(struct drm_device *dev, |
2545 | struct drm_mode_cursor2 *req, | |
2546 | struct drm_file *file_priv) | |
f453ba04 | 2547 | { |
f453ba04 DA |
2548 | struct drm_crtc *crtc; |
2549 | int ret = 0; | |
2550 | ||
fb3b06c8 DA |
2551 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2552 | return -EINVAL; | |
2553 | ||
7c4eaca4 | 2554 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2555 | return -EINVAL; |
f453ba04 | 2556 | |
a2b34e22 RC |
2557 | crtc = drm_crtc_find(dev, req->crtc_id); |
2558 | if (!crtc) { | |
58367ed6 | 2559 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2560 | return -ENOENT; |
f453ba04 | 2561 | } |
f453ba04 | 2562 | |
51fd371b | 2563 | drm_modeset_lock(&crtc->mutex, NULL); |
f453ba04 | 2564 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2565 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2566 | ret = -ENXIO; |
2567 | goto out; | |
2568 | } | |
2569 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2570 | if (crtc->funcs->cursor_set2) |
2571 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2572 | req->width, req->height, req->hot_x, req->hot_y); | |
2573 | else | |
2574 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2575 | req->width, req->height); | |
f453ba04 DA |
2576 | } |
2577 | ||
2578 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2579 | if (crtc->funcs->cursor_move) { | |
2580 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2581 | } else { | |
f453ba04 DA |
2582 | ret = -EFAULT; |
2583 | goto out; | |
2584 | } | |
2585 | } | |
2586 | out: | |
51fd371b | 2587 | drm_modeset_unlock(&crtc->mutex); |
dac35663 | 2588 | |
f453ba04 | 2589 | return ret; |
4c813d4d DA |
2590 | |
2591 | } | |
c8e32cc1 DV |
2592 | |
2593 | ||
2594 | /** | |
2595 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2596 | * @dev: drm device for the ioctl | |
2597 | * @data: data pointer for the ioctl | |
2598 | * @file_priv: drm file for the ioctl call | |
2599 | * | |
2600 | * Set the cursor configuration based on user request. | |
2601 | * | |
2602 | * Called by the user via ioctl. | |
2603 | * | |
2604 | * Returns: | |
2605 | * Zero on success, errno on failure. | |
2606 | */ | |
4c813d4d | 2607 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2608 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2609 | { |
2610 | struct drm_mode_cursor *req = data; | |
2611 | struct drm_mode_cursor2 new_req; | |
2612 | ||
2613 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2614 | new_req.hot_x = new_req.hot_y = 0; | |
2615 | ||
2616 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2617 | } | |
2618 | ||
c8e32cc1 DV |
2619 | /** |
2620 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2621 | * @dev: drm device for the ioctl | |
2622 | * @data: data pointer for the ioctl | |
2623 | * @file_priv: drm file for the ioctl call | |
2624 | * | |
2625 | * Set the cursor configuration based on user request. This implements the 2nd | |
2626 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2627 | * the hotspot of the pointer. | |
2628 | * | |
2629 | * Called by the user via ioctl. | |
2630 | * | |
2631 | * Returns: | |
2632 | * Zero on success, errno on failure. | |
2633 | */ | |
4c813d4d DA |
2634 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2635 | void *data, struct drm_file *file_priv) | |
2636 | { | |
2637 | struct drm_mode_cursor2 *req = data; | |
2638 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2639 | } |
2640 | ||
c8e32cc1 DV |
2641 | /** |
2642 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2643 | * @bpp: bits per pixels | |
2644 | * @depth: bit depth per pixel | |
2645 | * | |
2646 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2647 | * Useful in fbdev emulation code, since that deals in those values. | |
2648 | */ | |
308e5bcb JB |
2649 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2650 | { | |
2651 | uint32_t fmt; | |
2652 | ||
2653 | switch (bpp) { | |
2654 | case 8: | |
d84f031b | 2655 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2656 | break; |
2657 | case 16: | |
2658 | if (depth == 15) | |
04b3924d | 2659 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2660 | else |
04b3924d | 2661 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2662 | break; |
2663 | case 24: | |
04b3924d | 2664 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2665 | break; |
2666 | case 32: | |
2667 | if (depth == 24) | |
04b3924d | 2668 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2669 | else if (depth == 30) |
04b3924d | 2670 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2671 | else |
04b3924d | 2672 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2673 | break; |
2674 | default: | |
04b3924d VS |
2675 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2676 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2677 | break; |
2678 | } | |
2679 | ||
2680 | return fmt; | |
2681 | } | |
2682 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2683 | ||
f453ba04 DA |
2684 | /** |
2685 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2686 | * @dev: drm device for the ioctl |
2687 | * @data: data pointer for the ioctl | |
2688 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2689 | * |
c8e32cc1 DV |
2690 | * Add a new FB to the specified CRTC, given a user request. This is the |
2691 | * original addfb ioclt which only supported RGB formats. | |
f453ba04 DA |
2692 | * |
2693 | * Called by the user via ioctl. | |
2694 | * | |
c8e32cc1 | 2695 | * Returns: |
f453ba04 DA |
2696 | * Zero on success, errno on failure. |
2697 | */ | |
2698 | int drm_mode_addfb(struct drm_device *dev, | |
2699 | void *data, struct drm_file *file_priv) | |
2700 | { | |
308e5bcb JB |
2701 | struct drm_mode_fb_cmd *or = data; |
2702 | struct drm_mode_fb_cmd2 r = {}; | |
2703 | struct drm_mode_config *config = &dev->mode_config; | |
2704 | struct drm_framebuffer *fb; | |
2705 | int ret = 0; | |
2706 | ||
2707 | /* Use new struct with format internally */ | |
2708 | r.fb_id = or->fb_id; | |
2709 | r.width = or->width; | |
2710 | r.height = or->height; | |
2711 | r.pitches[0] = or->pitch; | |
2712 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2713 | r.handles[0] = or->handle; | |
2714 | ||
2715 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2716 | return -EINVAL; | |
2717 | ||
acb4b992 | 2718 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2719 | return -EINVAL; |
acb4b992 JB |
2720 | |
2721 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2722 | return -EINVAL; |
308e5bcb | 2723 | |
308e5bcb JB |
2724 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2725 | if (IS_ERR(fb)) { | |
1aa1b11c | 2726 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2727 | return PTR_ERR(fb); |
308e5bcb JB |
2728 | } |
2729 | ||
4b096ac1 | 2730 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2731 | or->fb_id = fb->base.id; |
2732 | list_add(&fb->filp_head, &file_priv->fbs); | |
2733 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2734 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2735 | |
308e5bcb JB |
2736 | return ret; |
2737 | } | |
2738 | ||
cff91b62 | 2739 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2740 | { |
2741 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2742 | ||
2743 | switch (format) { | |
2744 | case DRM_FORMAT_C8: | |
2745 | case DRM_FORMAT_RGB332: | |
2746 | case DRM_FORMAT_BGR233: | |
2747 | case DRM_FORMAT_XRGB4444: | |
2748 | case DRM_FORMAT_XBGR4444: | |
2749 | case DRM_FORMAT_RGBX4444: | |
2750 | case DRM_FORMAT_BGRX4444: | |
2751 | case DRM_FORMAT_ARGB4444: | |
2752 | case DRM_FORMAT_ABGR4444: | |
2753 | case DRM_FORMAT_RGBA4444: | |
2754 | case DRM_FORMAT_BGRA4444: | |
2755 | case DRM_FORMAT_XRGB1555: | |
2756 | case DRM_FORMAT_XBGR1555: | |
2757 | case DRM_FORMAT_RGBX5551: | |
2758 | case DRM_FORMAT_BGRX5551: | |
2759 | case DRM_FORMAT_ARGB1555: | |
2760 | case DRM_FORMAT_ABGR1555: | |
2761 | case DRM_FORMAT_RGBA5551: | |
2762 | case DRM_FORMAT_BGRA5551: | |
2763 | case DRM_FORMAT_RGB565: | |
2764 | case DRM_FORMAT_BGR565: | |
2765 | case DRM_FORMAT_RGB888: | |
2766 | case DRM_FORMAT_BGR888: | |
2767 | case DRM_FORMAT_XRGB8888: | |
2768 | case DRM_FORMAT_XBGR8888: | |
2769 | case DRM_FORMAT_RGBX8888: | |
2770 | case DRM_FORMAT_BGRX8888: | |
2771 | case DRM_FORMAT_ARGB8888: | |
2772 | case DRM_FORMAT_ABGR8888: | |
2773 | case DRM_FORMAT_RGBA8888: | |
2774 | case DRM_FORMAT_BGRA8888: | |
2775 | case DRM_FORMAT_XRGB2101010: | |
2776 | case DRM_FORMAT_XBGR2101010: | |
2777 | case DRM_FORMAT_RGBX1010102: | |
2778 | case DRM_FORMAT_BGRX1010102: | |
2779 | case DRM_FORMAT_ARGB2101010: | |
2780 | case DRM_FORMAT_ABGR2101010: | |
2781 | case DRM_FORMAT_RGBA1010102: | |
2782 | case DRM_FORMAT_BGRA1010102: | |
2783 | case DRM_FORMAT_YUYV: | |
2784 | case DRM_FORMAT_YVYU: | |
2785 | case DRM_FORMAT_UYVY: | |
2786 | case DRM_FORMAT_VYUY: | |
2787 | case DRM_FORMAT_AYUV: | |
2788 | case DRM_FORMAT_NV12: | |
2789 | case DRM_FORMAT_NV21: | |
2790 | case DRM_FORMAT_NV16: | |
2791 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2792 | case DRM_FORMAT_NV24: |
2793 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2794 | case DRM_FORMAT_YUV410: |
2795 | case DRM_FORMAT_YVU410: | |
2796 | case DRM_FORMAT_YUV411: | |
2797 | case DRM_FORMAT_YVU411: | |
2798 | case DRM_FORMAT_YUV420: | |
2799 | case DRM_FORMAT_YVU420: | |
2800 | case DRM_FORMAT_YUV422: | |
2801 | case DRM_FORMAT_YVU422: | |
2802 | case DRM_FORMAT_YUV444: | |
2803 | case DRM_FORMAT_YVU444: | |
2804 | return 0; | |
2805 | default: | |
23c453a4 VS |
2806 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
2807 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
2808 | return -EINVAL; |
2809 | } | |
2810 | } | |
2811 | ||
cff91b62 | 2812 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2813 | { |
2814 | int ret, hsub, vsub, num_planes, i; | |
2815 | ||
2816 | ret = format_check(r); | |
2817 | if (ret) { | |
6ba6d03e VS |
2818 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
2819 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
2820 | return ret; |
2821 | } | |
2822 | ||
2823 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2824 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2825 | num_planes = drm_format_num_planes(r->pixel_format); | |
2826 | ||
2827 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2828 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2829 | return -EINVAL; |
2830 | } | |
2831 | ||
2832 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2833 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2834 | return -EINVAL; |
2835 | } | |
2836 | ||
2837 | for (i = 0; i < num_planes; i++) { | |
2838 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2839 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2840 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2841 | |
2842 | if (!r->handles[i]) { | |
1aa1b11c | 2843 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2844 | return -EINVAL; |
2845 | } | |
2846 | ||
b180b5d1 VS |
2847 | if ((uint64_t) width * cpp > UINT_MAX) |
2848 | return -ERANGE; | |
2849 | ||
2850 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2851 | return -ERANGE; | |
2852 | ||
2853 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2854 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2855 | return -EINVAL; |
2856 | } | |
2857 | } | |
2858 | ||
2859 | return 0; | |
2860 | } | |
2861 | ||
c394c2b0 MR |
2862 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
2863 | struct drm_mode_fb_cmd2 *r, | |
2864 | struct drm_file *file_priv) | |
308e5bcb | 2865 | { |
f453ba04 DA |
2866 | struct drm_mode_config *config = &dev->mode_config; |
2867 | struct drm_framebuffer *fb; | |
4a1b0714 | 2868 | int ret; |
f453ba04 | 2869 | |
e3cc3520 VS |
2870 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2871 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
c394c2b0 | 2872 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
2873 | } |
2874 | ||
f453ba04 | 2875 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2876 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2877 | r->width, config->min_width, config->max_width); |
c394c2b0 | 2878 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
2879 | } |
2880 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2881 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2882 | r->height, config->min_height, config->max_height); |
c394c2b0 | 2883 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
2884 | } |
2885 | ||
d1b45d5f VS |
2886 | ret = framebuffer_check(r); |
2887 | if (ret) | |
c394c2b0 | 2888 | return ERR_PTR(ret); |
935b5977 | 2889 | |
f453ba04 | 2890 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2891 | if (IS_ERR(fb)) { |
1aa1b11c | 2892 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 2893 | return fb; |
f453ba04 DA |
2894 | } |
2895 | ||
4b096ac1 | 2896 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2897 | r->fb_id = fb->base.id; |
f453ba04 | 2898 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2899 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2900 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2901 | |
c394c2b0 MR |
2902 | return fb; |
2903 | } | |
4b096ac1 | 2904 | |
c394c2b0 MR |
2905 | /** |
2906 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
2907 | * @dev: drm device for the ioctl | |
2908 | * @data: data pointer for the ioctl | |
2909 | * @file_priv: drm file for the ioctl call | |
2910 | * | |
2911 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
2912 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
2913 | * and uses fourcc codes as pixel format specifiers. | |
2914 | * | |
2915 | * Called by the user via ioctl. | |
2916 | * | |
2917 | * Returns: | |
2918 | * Zero on success, errno on failure. | |
2919 | */ | |
2920 | int drm_mode_addfb2(struct drm_device *dev, | |
2921 | void *data, struct drm_file *file_priv) | |
2922 | { | |
2923 | struct drm_framebuffer *fb; | |
2924 | ||
2925 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2926 | return -EINVAL; | |
2927 | ||
2928 | fb = add_framebuffer_internal(dev, data, file_priv); | |
2929 | if (IS_ERR(fb)) | |
2930 | return PTR_ERR(fb); | |
2931 | ||
2932 | return 0; | |
f453ba04 DA |
2933 | } |
2934 | ||
2935 | /** | |
2936 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2937 | * @dev: drm device for the ioctl |
2938 | * @data: data pointer for the ioctl | |
2939 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2940 | * |
f453ba04 DA |
2941 | * Remove the FB specified by the user. |
2942 | * | |
2943 | * Called by the user via ioctl. | |
2944 | * | |
c8e32cc1 | 2945 | * Returns: |
f453ba04 DA |
2946 | * Zero on success, errno on failure. |
2947 | */ | |
2948 | int drm_mode_rmfb(struct drm_device *dev, | |
2949 | void *data, struct drm_file *file_priv) | |
2950 | { | |
f453ba04 DA |
2951 | struct drm_framebuffer *fb = NULL; |
2952 | struct drm_framebuffer *fbl = NULL; | |
2953 | uint32_t *id = data; | |
f453ba04 DA |
2954 | int found = 0; |
2955 | ||
fb3b06c8 DA |
2956 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2957 | return -EINVAL; | |
2958 | ||
4b096ac1 | 2959 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2960 | mutex_lock(&dev->mode_config.fb_lock); |
2961 | fb = __drm_framebuffer_lookup(dev, *id); | |
2962 | if (!fb) | |
2963 | goto fail_lookup; | |
2964 | ||
f453ba04 DA |
2965 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2966 | if (fb == fbl) | |
2967 | found = 1; | |
2b677e8c DV |
2968 | if (!found) |
2969 | goto fail_lookup; | |
2970 | ||
2971 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2972 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2973 | |
4b096ac1 | 2974 | list_del_init(&fb->filp_head); |
2b677e8c | 2975 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2976 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2977 | |
4b096ac1 | 2978 | drm_framebuffer_remove(fb); |
4b096ac1 | 2979 | |
2b677e8c DV |
2980 | return 0; |
2981 | ||
2982 | fail_lookup: | |
2983 | mutex_unlock(&dev->mode_config.fb_lock); | |
2984 | mutex_unlock(&file_priv->fbs_lock); | |
2985 | ||
37c4e705 | 2986 | return -ENOENT; |
f453ba04 DA |
2987 | } |
2988 | ||
2989 | /** | |
2990 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2991 | * @dev: drm device for the ioctl |
2992 | * @data: data pointer for the ioctl | |
2993 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2994 | * |
f453ba04 DA |
2995 | * Lookup the FB given its ID and return info about it. |
2996 | * | |
2997 | * Called by the user via ioctl. | |
2998 | * | |
c8e32cc1 | 2999 | * Returns: |
f453ba04 DA |
3000 | * Zero on success, errno on failure. |
3001 | */ | |
3002 | int drm_mode_getfb(struct drm_device *dev, | |
3003 | void *data, struct drm_file *file_priv) | |
3004 | { | |
3005 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3006 | struct drm_framebuffer *fb; |
58c0dca1 | 3007 | int ret; |
f453ba04 | 3008 | |
fb3b06c8 DA |
3009 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3010 | return -EINVAL; | |
3011 | ||
786b99ed | 3012 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3013 | if (!fb) |
37c4e705 | 3014 | return -ENOENT; |
f453ba04 DA |
3015 | |
3016 | r->height = fb->height; | |
3017 | r->width = fb->width; | |
3018 | r->depth = fb->depth; | |
3019 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3020 | r->pitch = fb->pitches[0]; |
101b96f3 | 3021 | if (fb->funcs->create_handle) { |
09f308f7 | 3022 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3023 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3024 | ret = fb->funcs->create_handle(fb, file_priv, |
3025 | &r->handle); | |
3026 | } else { | |
3027 | /* GET_FB() is an unprivileged ioctl so we must not | |
3028 | * return a buffer-handle to non-master processes! For | |
3029 | * backwards-compatibility reasons, we cannot make | |
3030 | * GET_FB() privileged, so just return an invalid handle | |
3031 | * for non-masters. */ | |
3032 | r->handle = 0; | |
3033 | ret = 0; | |
3034 | } | |
3035 | } else { | |
af26ef3b | 3036 | ret = -ENODEV; |
101b96f3 | 3037 | } |
f453ba04 | 3038 | |
58c0dca1 DV |
3039 | drm_framebuffer_unreference(fb); |
3040 | ||
f453ba04 DA |
3041 | return ret; |
3042 | } | |
3043 | ||
c8e32cc1 DV |
3044 | /** |
3045 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3046 | * @dev: drm device for the ioctl | |
3047 | * @data: data pointer for the ioctl | |
3048 | * @file_priv: drm file for the ioctl call | |
3049 | * | |
3050 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3051 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3052 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3053 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3054 | * | |
3055 | * Modesetting drivers which always update the frontbuffer do not need to | |
3056 | * implement the corresponding ->dirty framebuffer callback. | |
3057 | * | |
3058 | * Called by the user via ioctl. | |
3059 | * | |
3060 | * Returns: | |
3061 | * Zero on success, errno on failure. | |
3062 | */ | |
884840aa JB |
3063 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3064 | void *data, struct drm_file *file_priv) | |
3065 | { | |
3066 | struct drm_clip_rect __user *clips_ptr; | |
3067 | struct drm_clip_rect *clips = NULL; | |
3068 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3069 | struct drm_framebuffer *fb; |
3070 | unsigned flags; | |
3071 | int num_clips; | |
4a1b0714 | 3072 | int ret; |
884840aa | 3073 | |
fb3b06c8 DA |
3074 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3075 | return -EINVAL; | |
3076 | ||
786b99ed | 3077 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3078 | if (!fb) |
37c4e705 | 3079 | return -ENOENT; |
884840aa JB |
3080 | |
3081 | num_clips = r->num_clips; | |
81f6c7f8 | 3082 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3083 | |
3084 | if (!num_clips != !clips_ptr) { | |
3085 | ret = -EINVAL; | |
3086 | goto out_err1; | |
3087 | } | |
3088 | ||
3089 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3090 | ||
3091 | /* If userspace annotates copy, clips must come in pairs */ | |
3092 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3093 | ret = -EINVAL; | |
3094 | goto out_err1; | |
3095 | } | |
3096 | ||
3097 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3098 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3099 | ret = -EINVAL; | |
3100 | goto out_err1; | |
3101 | } | |
884840aa JB |
3102 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3103 | if (!clips) { | |
3104 | ret = -ENOMEM; | |
3105 | goto out_err1; | |
3106 | } | |
3107 | ||
3108 | ret = copy_from_user(clips, clips_ptr, | |
3109 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3110 | if (ret) { |
3111 | ret = -EFAULT; | |
884840aa | 3112 | goto out_err2; |
e902a358 | 3113 | } |
884840aa JB |
3114 | } |
3115 | ||
3116 | if (fb->funcs->dirty) { | |
02b00162 TH |
3117 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3118 | clips, num_clips); | |
884840aa JB |
3119 | } else { |
3120 | ret = -ENOSYS; | |
884840aa JB |
3121 | } |
3122 | ||
3123 | out_err2: | |
3124 | kfree(clips); | |
3125 | out_err1: | |
4ccf097f DV |
3126 | drm_framebuffer_unreference(fb); |
3127 | ||
884840aa JB |
3128 | return ret; |
3129 | } | |
3130 | ||
3131 | ||
f453ba04 DA |
3132 | /** |
3133 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3134 | * @priv: drm file for the ioctl |
f453ba04 | 3135 | * |
f453ba04 DA |
3136 | * Destroy all the FBs associated with @filp. |
3137 | * | |
3138 | * Called by the user via ioctl. | |
3139 | * | |
c8e32cc1 | 3140 | * Returns: |
f453ba04 DA |
3141 | * Zero on success, errno on failure. |
3142 | */ | |
ea39f835 | 3143 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3144 | { |
f453ba04 DA |
3145 | struct drm_device *dev = priv->minor->dev; |
3146 | struct drm_framebuffer *fb, *tfb; | |
3147 | ||
4b096ac1 | 3148 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 3149 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3150 | |
3151 | mutex_lock(&dev->mode_config.fb_lock); | |
3152 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3153 | __drm_framebuffer_unregister(dev, fb); | |
3154 | mutex_unlock(&dev->mode_config.fb_lock); | |
3155 | ||
4b096ac1 | 3156 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3157 | |
3158 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3159 | drm_framebuffer_remove(fb); |
f453ba04 | 3160 | } |
4b096ac1 | 3161 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
3162 | } |
3163 | ||
c8e32cc1 DV |
3164 | /** |
3165 | * drm_property_create - create a new property type | |
3166 | * @dev: drm device | |
3167 | * @flags: flags specifying the property type | |
3168 | * @name: name of the property | |
3169 | * @num_values: number of pre-defined values | |
3170 | * | |
3171 | * This creates a new generic drm property which can then be attached to a drm | |
3172 | * object with drm_object_attach_property. The returned property object must be | |
3173 | * freed with drm_property_destroy. | |
3174 | * | |
3175 | * Returns: | |
3176 | * A pointer to the newly created property on success, NULL on failure. | |
3177 | */ | |
f453ba04 DA |
3178 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3179 | const char *name, int num_values) | |
3180 | { | |
3181 | struct drm_property *property = NULL; | |
6bfc56aa | 3182 | int ret; |
f453ba04 DA |
3183 | |
3184 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3185 | if (!property) | |
3186 | return NULL; | |
3187 | ||
98f75de4 RC |
3188 | property->dev = dev; |
3189 | ||
f453ba04 DA |
3190 | if (num_values) { |
3191 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3192 | if (!property->values) | |
3193 | goto fail; | |
3194 | } | |
3195 | ||
6bfc56aa VS |
3196 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3197 | if (ret) | |
3198 | goto fail; | |
3199 | ||
f453ba04 DA |
3200 | property->flags = flags; |
3201 | property->num_values = num_values; | |
3202 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3203 | ||
471dd2ef | 3204 | if (name) { |
f453ba04 | 3205 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3206 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3207 | } | |
f453ba04 DA |
3208 | |
3209 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3210 | |
3211 | WARN_ON(!drm_property_type_valid(property)); | |
3212 | ||
f453ba04 DA |
3213 | return property; |
3214 | fail: | |
6bfc56aa | 3215 | kfree(property->values); |
f453ba04 DA |
3216 | kfree(property); |
3217 | return NULL; | |
3218 | } | |
3219 | EXPORT_SYMBOL(drm_property_create); | |
3220 | ||
c8e32cc1 DV |
3221 | /** |
3222 | * drm_property_create - create a new enumeration property type | |
3223 | * @dev: drm device | |
3224 | * @flags: flags specifying the property type | |
3225 | * @name: name of the property | |
3226 | * @props: enumeration lists with property values | |
3227 | * @num_values: number of pre-defined values | |
3228 | * | |
3229 | * This creates a new generic drm property which can then be attached to a drm | |
3230 | * object with drm_object_attach_property. The returned property object must be | |
3231 | * freed with drm_property_destroy. | |
3232 | * | |
3233 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3234 | * properties. | |
3235 | * | |
3236 | * Returns: | |
3237 | * A pointer to the newly created property on success, NULL on failure. | |
3238 | */ | |
4a67d391 SH |
3239 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3240 | const char *name, | |
3241 | const struct drm_prop_enum_list *props, | |
3242 | int num_values) | |
3243 | { | |
3244 | struct drm_property *property; | |
3245 | int i, ret; | |
3246 | ||
3247 | flags |= DRM_MODE_PROP_ENUM; | |
3248 | ||
3249 | property = drm_property_create(dev, flags, name, num_values); | |
3250 | if (!property) | |
3251 | return NULL; | |
3252 | ||
3253 | for (i = 0; i < num_values; i++) { | |
3254 | ret = drm_property_add_enum(property, i, | |
3255 | props[i].type, | |
3256 | props[i].name); | |
3257 | if (ret) { | |
3258 | drm_property_destroy(dev, property); | |
3259 | return NULL; | |
3260 | } | |
3261 | } | |
3262 | ||
3263 | return property; | |
3264 | } | |
3265 | EXPORT_SYMBOL(drm_property_create_enum); | |
3266 | ||
c8e32cc1 DV |
3267 | /** |
3268 | * drm_property_create - create a new bitmask property type | |
3269 | * @dev: drm device | |
3270 | * @flags: flags specifying the property type | |
3271 | * @name: name of the property | |
3272 | * @props: enumeration lists with property bitflags | |
3273 | * @num_values: number of pre-defined values | |
3274 | * | |
3275 | * This creates a new generic drm property which can then be attached to a drm | |
3276 | * object with drm_object_attach_property. The returned property object must be | |
3277 | * freed with drm_property_destroy. | |
3278 | * | |
3279 | * Compared to plain enumeration properties userspace is allowed to set any | |
3280 | * or'ed together combination of the predefined property bitflag values | |
3281 | * | |
3282 | * Returns: | |
3283 | * A pointer to the newly created property on success, NULL on failure. | |
3284 | */ | |
49e27545 RC |
3285 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3286 | int flags, const char *name, | |
3287 | const struct drm_prop_enum_list *props, | |
3288 | int num_values) | |
3289 | { | |
3290 | struct drm_property *property; | |
3291 | int i, ret; | |
3292 | ||
3293 | flags |= DRM_MODE_PROP_BITMASK; | |
3294 | ||
3295 | property = drm_property_create(dev, flags, name, num_values); | |
3296 | if (!property) | |
3297 | return NULL; | |
3298 | ||
3299 | for (i = 0; i < num_values; i++) { | |
3300 | ret = drm_property_add_enum(property, i, | |
3301 | props[i].type, | |
3302 | props[i].name); | |
3303 | if (ret) { | |
3304 | drm_property_destroy(dev, property); | |
3305 | return NULL; | |
3306 | } | |
3307 | } | |
3308 | ||
3309 | return property; | |
3310 | } | |
3311 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3312 | ||
ebc44cf3 RC |
3313 | static struct drm_property *property_create_range(struct drm_device *dev, |
3314 | int flags, const char *name, | |
3315 | uint64_t min, uint64_t max) | |
3316 | { | |
3317 | struct drm_property *property; | |
3318 | ||
3319 | property = drm_property_create(dev, flags, name, 2); | |
3320 | if (!property) | |
3321 | return NULL; | |
3322 | ||
3323 | property->values[0] = min; | |
3324 | property->values[1] = max; | |
3325 | ||
3326 | return property; | |
3327 | } | |
3328 | ||
c8e32cc1 DV |
3329 | /** |
3330 | * drm_property_create - create a new ranged property type | |
3331 | * @dev: drm device | |
3332 | * @flags: flags specifying the property type | |
3333 | * @name: name of the property | |
3334 | * @min: minimum value of the property | |
3335 | * @max: maximum value of the property | |
3336 | * | |
3337 | * This creates a new generic drm property which can then be attached to a drm | |
3338 | * object with drm_object_attach_property. The returned property object must be | |
3339 | * freed with drm_property_destroy. | |
3340 | * | |
3341 | * Userspace is allowed to set any interger value in the (min, max) range | |
3342 | * inclusive. | |
3343 | * | |
3344 | * Returns: | |
3345 | * A pointer to the newly created property on success, NULL on failure. | |
3346 | */ | |
d9bc3c02 SH |
3347 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3348 | const char *name, | |
3349 | uint64_t min, uint64_t max) | |
3350 | { | |
ebc44cf3 RC |
3351 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3352 | name, min, max); | |
d9bc3c02 SH |
3353 | } |
3354 | EXPORT_SYMBOL(drm_property_create_range); | |
3355 | ||
ebc44cf3 RC |
3356 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3357 | int flags, const char *name, | |
3358 | int64_t min, int64_t max) | |
3359 | { | |
3360 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3361 | name, I642U64(min), I642U64(max)); | |
3362 | } | |
3363 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3364 | ||
98f75de4 RC |
3365 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3366 | int flags, const char *name, uint32_t type) | |
3367 | { | |
3368 | struct drm_property *property; | |
3369 | ||
3370 | flags |= DRM_MODE_PROP_OBJECT; | |
3371 | ||
3372 | property = drm_property_create(dev, flags, name, 1); | |
3373 | if (!property) | |
3374 | return NULL; | |
3375 | ||
3376 | property->values[0] = type; | |
3377 | ||
3378 | return property; | |
3379 | } | |
3380 | EXPORT_SYMBOL(drm_property_create_object); | |
3381 | ||
c8e32cc1 DV |
3382 | /** |
3383 | * drm_property_add_enum - add a possible value to an enumeration property | |
3384 | * @property: enumeration property to change | |
3385 | * @index: index of the new enumeration | |
3386 | * @value: value of the new enumeration | |
3387 | * @name: symbolic name of the new enumeration | |
3388 | * | |
3389 | * This functions adds enumerations to a property. | |
3390 | * | |
3391 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3392 | * to directly create the property with all enumerations already attached. | |
3393 | * | |
3394 | * Returns: | |
3395 | * Zero on success, error code on failure. | |
3396 | */ | |
f453ba04 DA |
3397 | int drm_property_add_enum(struct drm_property *property, int index, |
3398 | uint64_t value, const char *name) | |
3399 | { | |
3400 | struct drm_property_enum *prop_enum; | |
3401 | ||
5ea22f24 RC |
3402 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3403 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3404 | return -EINVAL; |
3405 | ||
3406 | /* | |
3407 | * Bitmask enum properties have the additional constraint of values | |
3408 | * from 0 to 63 | |
3409 | */ | |
5ea22f24 RC |
3410 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3411 | (value > 63)) | |
f453ba04 DA |
3412 | return -EINVAL; |
3413 | ||
3414 | if (!list_empty(&property->enum_blob_list)) { | |
3415 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3416 | if (prop_enum->value == value) { | |
3417 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3418 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3419 | return 0; | |
3420 | } | |
3421 | } | |
3422 | } | |
3423 | ||
3424 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3425 | if (!prop_enum) | |
3426 | return -ENOMEM; | |
3427 | ||
3428 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3429 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3430 | prop_enum->value = value; | |
3431 | ||
3432 | property->values[index] = value; | |
3433 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3434 | return 0; | |
3435 | } | |
3436 | EXPORT_SYMBOL(drm_property_add_enum); | |
3437 | ||
c8e32cc1 DV |
3438 | /** |
3439 | * drm_property_destroy - destroy a drm property | |
3440 | * @dev: drm device | |
3441 | * @property: property to destry | |
3442 | * | |
3443 | * This function frees a property including any attached resources like | |
3444 | * enumeration values. | |
3445 | */ | |
f453ba04 DA |
3446 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3447 | { | |
3448 | struct drm_property_enum *prop_enum, *pt; | |
3449 | ||
3450 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3451 | list_del(&prop_enum->head); | |
3452 | kfree(prop_enum); | |
3453 | } | |
3454 | ||
3455 | if (property->num_values) | |
3456 | kfree(property->values); | |
3457 | drm_mode_object_put(dev, &property->base); | |
3458 | list_del(&property->head); | |
3459 | kfree(property); | |
3460 | } | |
3461 | EXPORT_SYMBOL(drm_property_destroy); | |
3462 | ||
c8e32cc1 DV |
3463 | /** |
3464 | * drm_object_attach_property - attach a property to a modeset object | |
3465 | * @obj: drm modeset object | |
3466 | * @property: property to attach | |
3467 | * @init_val: initial value of the property | |
3468 | * | |
3469 | * This attaches the given property to the modeset object with the given initial | |
3470 | * value. Currently this function cannot fail since the properties are stored in | |
3471 | * a statically sized array. | |
3472 | */ | |
c543188a PZ |
3473 | void drm_object_attach_property(struct drm_mode_object *obj, |
3474 | struct drm_property *property, | |
3475 | uint64_t init_val) | |
3476 | { | |
7f88a9be | 3477 | int count = obj->properties->count; |
c543188a | 3478 | |
7f88a9be PZ |
3479 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3480 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3481 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3482 | "you see this message on the same object type.\n", | |
3483 | obj->type); | |
3484 | return; | |
c543188a PZ |
3485 | } |
3486 | ||
7f88a9be PZ |
3487 | obj->properties->ids[count] = property->base.id; |
3488 | obj->properties->values[count] = init_val; | |
3489 | obj->properties->count++; | |
c543188a PZ |
3490 | } |
3491 | EXPORT_SYMBOL(drm_object_attach_property); | |
3492 | ||
c8e32cc1 DV |
3493 | /** |
3494 | * drm_object_property_set_value - set the value of a property | |
3495 | * @obj: drm mode object to set property value for | |
3496 | * @property: property to set | |
3497 | * @val: value the property should be set to | |
3498 | * | |
3499 | * This functions sets a given property on a given object. This function only | |
3500 | * changes the software state of the property, it does not call into the | |
3501 | * driver's ->set_property callback. | |
3502 | * | |
3503 | * Returns: | |
3504 | * Zero on success, error code on failure. | |
3505 | */ | |
c543188a PZ |
3506 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3507 | struct drm_property *property, uint64_t val) | |
3508 | { | |
3509 | int i; | |
3510 | ||
7f88a9be | 3511 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3512 | if (obj->properties->ids[i] == property->base.id) { |
3513 | obj->properties->values[i] = val; | |
3514 | return 0; | |
3515 | } | |
3516 | } | |
3517 | ||
3518 | return -EINVAL; | |
3519 | } | |
3520 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3521 | ||
c8e32cc1 DV |
3522 | /** |
3523 | * drm_object_property_get_value - retrieve the value of a property | |
3524 | * @obj: drm mode object to get property value from | |
3525 | * @property: property to retrieve | |
3526 | * @val: storage for the property value | |
3527 | * | |
3528 | * This function retrieves the softare state of the given property for the given | |
3529 | * property. Since there is no driver callback to retrieve the current property | |
3530 | * value this might be out of sync with the hardware, depending upon the driver | |
3531 | * and property. | |
3532 | * | |
3533 | * Returns: | |
3534 | * Zero on success, error code on failure. | |
3535 | */ | |
c543188a PZ |
3536 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3537 | struct drm_property *property, uint64_t *val) | |
3538 | { | |
3539 | int i; | |
3540 | ||
7f88a9be | 3541 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3542 | if (obj->properties->ids[i] == property->base.id) { |
3543 | *val = obj->properties->values[i]; | |
3544 | return 0; | |
3545 | } | |
3546 | } | |
3547 | ||
3548 | return -EINVAL; | |
3549 | } | |
3550 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3551 | ||
c8e32cc1 DV |
3552 | /** |
3553 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3554 | * @dev: DRM device | |
3555 | * @data: ioctl data | |
3556 | * @file_priv: DRM file info | |
3557 | * | |
3558 | * This function retrieves the current value for an connectors's property. | |
3559 | * | |
3560 | * Called by the user via ioctl. | |
3561 | * | |
3562 | * Returns: | |
3563 | * Zero on success, errno on failure. | |
3564 | */ | |
f453ba04 DA |
3565 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3566 | void *data, struct drm_file *file_priv) | |
3567 | { | |
f453ba04 DA |
3568 | struct drm_mode_get_property *out_resp = data; |
3569 | struct drm_property *property; | |
3570 | int enum_count = 0; | |
3571 | int blob_count = 0; | |
3572 | int value_count = 0; | |
3573 | int ret = 0, i; | |
3574 | int copied; | |
3575 | struct drm_property_enum *prop_enum; | |
3576 | struct drm_mode_property_enum __user *enum_ptr; | |
3577 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3578 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3579 | uint64_t __user *values_ptr; |
3580 | uint32_t __user *blob_length_ptr; | |
3581 | ||
fb3b06c8 DA |
3582 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3583 | return -EINVAL; | |
3584 | ||
84849903 | 3585 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3586 | property = drm_property_find(dev, out_resp->prop_id); |
3587 | if (!property) { | |
f27657f2 | 3588 | ret = -ENOENT; |
f453ba04 DA |
3589 | goto done; |
3590 | } | |
f453ba04 | 3591 | |
5ea22f24 RC |
3592 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3593 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3594 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3595 | enum_count++; | |
5ea22f24 | 3596 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3597 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) |
3598 | blob_count++; | |
3599 | } | |
3600 | ||
3601 | value_count = property->num_values; | |
3602 | ||
3603 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3604 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3605 | out_resp->flags = property->flags; | |
3606 | ||
3607 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3608 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3609 | for (i = 0; i < value_count; i++) { |
3610 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3611 | ret = -EFAULT; | |
3612 | goto done; | |
3613 | } | |
3614 | } | |
3615 | } | |
3616 | out_resp->count_values = value_count; | |
3617 | ||
5ea22f24 RC |
3618 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3619 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3620 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3621 | copied = 0; | |
81f6c7f8 | 3622 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3623 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3624 | ||
3625 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3626 | ret = -EFAULT; | |
3627 | goto done; | |
3628 | } | |
3629 | ||
3630 | if (copy_to_user(&enum_ptr[copied].name, | |
3631 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3632 | ret = -EFAULT; | |
3633 | goto done; | |
3634 | } | |
3635 | copied++; | |
3636 | } | |
3637 | } | |
3638 | out_resp->count_enum_blobs = enum_count; | |
3639 | } | |
3640 | ||
5ea22f24 | 3641 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3642 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { |
3643 | copied = 0; | |
81f6c7f8 VS |
3644 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3645 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3646 | |
3647 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3648 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3649 | ret = -EFAULT; | |
3650 | goto done; | |
3651 | } | |
3652 | ||
3653 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3654 | ret = -EFAULT; | |
3655 | goto done; | |
3656 | } | |
3657 | ||
3658 | copied++; | |
3659 | } | |
3660 | } | |
3661 | out_resp->count_enum_blobs = blob_count; | |
3662 | } | |
3663 | done: | |
84849903 | 3664 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3665 | return ret; |
3666 | } | |
3667 | ||
3668 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3669 | void *data) | |
3670 | { | |
3671 | struct drm_property_blob *blob; | |
6bfc56aa | 3672 | int ret; |
f453ba04 DA |
3673 | |
3674 | if (!length || !data) | |
3675 | return NULL; | |
3676 | ||
3677 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3678 | if (!blob) | |
3679 | return NULL; | |
3680 | ||
6bfc56aa VS |
3681 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3682 | if (ret) { | |
3683 | kfree(blob); | |
3684 | return NULL; | |
3685 | } | |
3686 | ||
f453ba04 DA |
3687 | blob->length = length; |
3688 | ||
3689 | memcpy(blob->data, data, length); | |
3690 | ||
f453ba04 DA |
3691 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3692 | return blob; | |
3693 | } | |
3694 | ||
3695 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3696 | struct drm_property_blob *blob) | |
3697 | { | |
3698 | drm_mode_object_put(dev, &blob->base); | |
3699 | list_del(&blob->head); | |
3700 | kfree(blob); | |
3701 | } | |
3702 | ||
c8e32cc1 DV |
3703 | /** |
3704 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3705 | * @dev: DRM device | |
3706 | * @data: ioctl data | |
3707 | * @file_priv: DRM file info | |
3708 | * | |
3709 | * This function retrieves the contents of a blob property. The value stored in | |
3710 | * an object's blob property is just a normal modeset object id. | |
3711 | * | |
3712 | * Called by the user via ioctl. | |
3713 | * | |
3714 | * Returns: | |
3715 | * Zero on success, errno on failure. | |
3716 | */ | |
f453ba04 DA |
3717 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3718 | void *data, struct drm_file *file_priv) | |
3719 | { | |
f453ba04 DA |
3720 | struct drm_mode_get_blob *out_resp = data; |
3721 | struct drm_property_blob *blob; | |
3722 | int ret = 0; | |
81f6c7f8 | 3723 | void __user *blob_ptr; |
f453ba04 | 3724 | |
fb3b06c8 DA |
3725 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3726 | return -EINVAL; | |
3727 | ||
84849903 | 3728 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3729 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
3730 | if (!blob) { | |
f27657f2 | 3731 | ret = -ENOENT; |
f453ba04 DA |
3732 | goto done; |
3733 | } | |
f453ba04 DA |
3734 | |
3735 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3736 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3737 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3738 | ret = -EFAULT; | |
3739 | goto done; | |
3740 | } | |
3741 | } | |
3742 | out_resp->length = blob->length; | |
3743 | ||
3744 | done: | |
84849903 | 3745 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3746 | return ret; |
3747 | } | |
3748 | ||
c8e32cc1 DV |
3749 | /** |
3750 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
3751 | * @connector: drm connector | |
3752 | * @edid: new value of the edid property | |
3753 | * | |
3754 | * This function creates a new blob modeset object and assigns its id to the | |
3755 | * connector's edid property. | |
3756 | * | |
3757 | * Returns: | |
3758 | * Zero on success, errno on failure. | |
3759 | */ | |
f453ba04 DA |
3760 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
3761 | struct edid *edid) | |
3762 | { | |
3763 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3764 | int ret, size; |
f453ba04 DA |
3765 | |
3766 | if (connector->edid_blob_ptr) | |
3767 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3768 | ||
3769 | /* Delete edid, when there is none. */ | |
3770 | if (!edid) { | |
3771 | connector->edid_blob_ptr = NULL; | |
58495563 | 3772 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3773 | return ret; |
3774 | } | |
3775 | ||
7466f4cc AJ |
3776 | size = EDID_LENGTH * (1 + edid->extensions); |
3777 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3778 | size, edid); | |
e655d122 SK |
3779 | if (!connector->edid_blob_ptr) |
3780 | return -EINVAL; | |
f453ba04 | 3781 | |
58495563 | 3782 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3783 | dev->mode_config.edid_property, |
3784 | connector->edid_blob_ptr->base.id); | |
3785 | ||
3786 | return ret; | |
3787 | } | |
3788 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3789 | ||
26a34815 | 3790 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3791 | uint64_t value) |
26a34815 PZ |
3792 | { |
3793 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3794 | return false; | |
5ea22f24 RC |
3795 | |
3796 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { | |
26a34815 PZ |
3797 | if (value < property->values[0] || value > property->values[1]) |
3798 | return false; | |
3799 | return true; | |
ebc44cf3 RC |
3800 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
3801 | int64_t svalue = U642I64(value); | |
3802 | if (svalue < U642I64(property->values[0]) || | |
3803 | svalue > U642I64(property->values[1])) | |
3804 | return false; | |
3805 | return true; | |
5ea22f24 | 3806 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
49e27545 | 3807 | int i; |
592c20ee | 3808 | uint64_t valid_mask = 0; |
49e27545 RC |
3809 | for (i = 0; i < property->num_values; i++) |
3810 | valid_mask |= (1ULL << property->values[i]); | |
3811 | return !(value & ~valid_mask); | |
5ea22f24 | 3812 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
3813 | /* Only the driver knows */ |
3814 | return true; | |
98f75de4 RC |
3815 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
3816 | struct drm_mode_object *obj; | |
3817 | /* a zero value for an object property translates to null: */ | |
3818 | if (value == 0) | |
3819 | return true; | |
3820 | /* | |
3821 | * NOTE: use _object_find() directly to bypass restriction on | |
3822 | * looking up refcnt'd objects (ie. fb's). For a refcnt'd | |
3823 | * object this could race against object finalization, so it | |
3824 | * simply tells us that the object *was* valid. Which is good | |
3825 | * enough. | |
3826 | */ | |
3827 | obj = _object_find(property->dev, value, property->values[0]); | |
3828 | return obj != NULL; | |
26a34815 PZ |
3829 | } else { |
3830 | int i; | |
3831 | for (i = 0; i < property->num_values; i++) | |
3832 | if (property->values[i] == value) | |
3833 | return true; | |
3834 | return false; | |
3835 | } | |
3836 | } | |
3837 | ||
c8e32cc1 DV |
3838 | /** |
3839 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
3840 | * @dev: DRM device | |
3841 | * @data: ioctl data | |
3842 | * @file_priv: DRM file info | |
3843 | * | |
3844 | * This function sets the current value for a connectors's property. It also | |
3845 | * calls into a driver's ->set_property callback to update the hardware state | |
3846 | * | |
3847 | * Called by the user via ioctl. | |
3848 | * | |
3849 | * Returns: | |
3850 | * Zero on success, errno on failure. | |
3851 | */ | |
f453ba04 DA |
3852 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3853 | void *data, struct drm_file *file_priv) | |
3854 | { | |
0057d8dd PZ |
3855 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3856 | struct drm_mode_obj_set_property obj_set_prop = { | |
3857 | .value = conn_set_prop->value, | |
3858 | .prop_id = conn_set_prop->prop_id, | |
3859 | .obj_id = conn_set_prop->connector_id, | |
3860 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3861 | }; | |
fb3b06c8 | 3862 | |
0057d8dd PZ |
3863 | /* It does all the locking and checking we need */ |
3864 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3865 | } |
3866 | ||
c543188a PZ |
3867 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3868 | struct drm_property *property, | |
3869 | uint64_t value) | |
3870 | { | |
3871 | int ret = -EINVAL; | |
3872 | struct drm_connector *connector = obj_to_connector(obj); | |
3873 | ||
3874 | /* Do DPMS ourselves */ | |
3875 | if (property == connector->dev->mode_config.dpms_property) { | |
3876 | if (connector->funcs->dpms) | |
3877 | (*connector->funcs->dpms)(connector, (int)value); | |
3878 | ret = 0; | |
3879 | } else if (connector->funcs->set_property) | |
3880 | ret = connector->funcs->set_property(connector, property, value); | |
3881 | ||
3882 | /* store the property value if successful */ | |
3883 | if (!ret) | |
58495563 | 3884 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3885 | return ret; |
3886 | } | |
3887 | ||
bffd9de0 PZ |
3888 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3889 | struct drm_property *property, | |
3890 | uint64_t value) | |
3891 | { | |
3892 | int ret = -EINVAL; | |
3893 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3894 | ||
3895 | if (crtc->funcs->set_property) | |
3896 | ret = crtc->funcs->set_property(crtc, property, value); | |
3897 | if (!ret) | |
3898 | drm_object_property_set_value(obj, property, value); | |
3899 | ||
3900 | return ret; | |
3901 | } | |
3902 | ||
4d93914a RC |
3903 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3904 | struct drm_property *property, | |
3905 | uint64_t value) | |
3906 | { | |
3907 | int ret = -EINVAL; | |
3908 | struct drm_plane *plane = obj_to_plane(obj); | |
3909 | ||
3910 | if (plane->funcs->set_property) | |
3911 | ret = plane->funcs->set_property(plane, property, value); | |
3912 | if (!ret) | |
3913 | drm_object_property_set_value(obj, property, value); | |
3914 | ||
3915 | return ret; | |
3916 | } | |
3917 | ||
c8e32cc1 DV |
3918 | /** |
3919 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
3920 | * @dev: DRM device | |
3921 | * @data: ioctl data | |
3922 | * @file_priv: DRM file info | |
3923 | * | |
3924 | * This function retrieves the current value for an object's property. Compared | |
3925 | * to the connector specific ioctl this one is extended to also work on crtc and | |
3926 | * plane objects. | |
3927 | * | |
3928 | * Called by the user via ioctl. | |
3929 | * | |
3930 | * Returns: | |
3931 | * Zero on success, errno on failure. | |
3932 | */ | |
c543188a PZ |
3933 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3934 | struct drm_file *file_priv) | |
3935 | { | |
3936 | struct drm_mode_obj_get_properties *arg = data; | |
3937 | struct drm_mode_object *obj; | |
3938 | int ret = 0; | |
3939 | int i; | |
3940 | int copied = 0; | |
3941 | int props_count = 0; | |
3942 | uint32_t __user *props_ptr; | |
3943 | uint64_t __user *prop_values_ptr; | |
3944 | ||
3945 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3946 | return -EINVAL; | |
3947 | ||
84849903 | 3948 | drm_modeset_lock_all(dev); |
c543188a PZ |
3949 | |
3950 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3951 | if (!obj) { | |
f27657f2 | 3952 | ret = -ENOENT; |
c543188a PZ |
3953 | goto out; |
3954 | } | |
3955 | if (!obj->properties) { | |
3956 | ret = -EINVAL; | |
3957 | goto out; | |
3958 | } | |
3959 | ||
7f88a9be | 3960 | props_count = obj->properties->count; |
c543188a PZ |
3961 | |
3962 | /* This ioctl is called twice, once to determine how much space is | |
3963 | * needed, and the 2nd time to fill it. */ | |
3964 | if ((arg->count_props >= props_count) && props_count) { | |
3965 | copied = 0; | |
3966 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3967 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3968 | (arg->prop_values_ptr); | |
3969 | for (i = 0; i < props_count; i++) { | |
3970 | if (put_user(obj->properties->ids[i], | |
3971 | props_ptr + copied)) { | |
3972 | ret = -EFAULT; | |
3973 | goto out; | |
3974 | } | |
3975 | if (put_user(obj->properties->values[i], | |
3976 | prop_values_ptr + copied)) { | |
3977 | ret = -EFAULT; | |
3978 | goto out; | |
3979 | } | |
3980 | copied++; | |
3981 | } | |
3982 | } | |
3983 | arg->count_props = props_count; | |
3984 | out: | |
84849903 | 3985 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3986 | return ret; |
3987 | } | |
3988 | ||
c8e32cc1 DV |
3989 | /** |
3990 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
3991 | * @dev: DRM device | |
3992 | * @data: ioctl data | |
3993 | * @file_priv: DRM file info | |
3994 | * | |
3995 | * This function sets the current value for an object's property. It also calls | |
3996 | * into a driver's ->set_property callback to update the hardware state. | |
3997 | * Compared to the connector specific ioctl this one is extended to also work on | |
3998 | * crtc and plane objects. | |
3999 | * | |
4000 | * Called by the user via ioctl. | |
4001 | * | |
4002 | * Returns: | |
4003 | * Zero on success, errno on failure. | |
4004 | */ | |
c543188a PZ |
4005 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4006 | struct drm_file *file_priv) | |
4007 | { | |
4008 | struct drm_mode_obj_set_property *arg = data; | |
4009 | struct drm_mode_object *arg_obj; | |
4010 | struct drm_mode_object *prop_obj; | |
4011 | struct drm_property *property; | |
4012 | int ret = -EINVAL; | |
4013 | int i; | |
4014 | ||
4015 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4016 | return -EINVAL; | |
4017 | ||
84849903 | 4018 | drm_modeset_lock_all(dev); |
c543188a PZ |
4019 | |
4020 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4021 | if (!arg_obj) { |
4022 | ret = -ENOENT; | |
c543188a | 4023 | goto out; |
f27657f2 | 4024 | } |
c543188a PZ |
4025 | if (!arg_obj->properties) |
4026 | goto out; | |
4027 | ||
7f88a9be | 4028 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
4029 | if (arg_obj->properties->ids[i] == arg->prop_id) |
4030 | break; | |
4031 | ||
7f88a9be | 4032 | if (i == arg_obj->properties->count) |
c543188a PZ |
4033 | goto out; |
4034 | ||
4035 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4036 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4037 | if (!prop_obj) { |
4038 | ret = -ENOENT; | |
c543188a | 4039 | goto out; |
f27657f2 | 4040 | } |
c543188a PZ |
4041 | property = obj_to_property(prop_obj); |
4042 | ||
4043 | if (!drm_property_change_is_valid(property, arg->value)) | |
4044 | goto out; | |
4045 | ||
4046 | switch (arg_obj->type) { | |
4047 | case DRM_MODE_OBJECT_CONNECTOR: | |
4048 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4049 | arg->value); | |
4050 | break; | |
bffd9de0 PZ |
4051 | case DRM_MODE_OBJECT_CRTC: |
4052 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4053 | break; | |
4d93914a RC |
4054 | case DRM_MODE_OBJECT_PLANE: |
4055 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
4056 | break; | |
c543188a PZ |
4057 | } |
4058 | ||
4059 | out: | |
84849903 | 4060 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4061 | return ret; |
4062 | } | |
4063 | ||
c8e32cc1 DV |
4064 | /** |
4065 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4066 | * @connector: connector to attach | |
4067 | * @encoder: encoder to attach @connector to | |
4068 | * | |
4069 | * This function links up a connector to an encoder. Note that the routing | |
4070 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4071 | * possible_clones and possible_crtcs bitmasks. | |
4072 | * | |
4073 | * Returns: | |
4074 | * Zero on success, errno on failure. | |
4075 | */ | |
f453ba04 DA |
4076 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4077 | struct drm_encoder *encoder) | |
4078 | { | |
4079 | int i; | |
4080 | ||
4081 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4082 | if (connector->encoder_ids[i] == 0) { | |
4083 | connector->encoder_ids[i] = encoder->base.id; | |
4084 | return 0; | |
4085 | } | |
4086 | } | |
4087 | return -ENOMEM; | |
4088 | } | |
4089 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4090 | ||
c8e32cc1 DV |
4091 | /** |
4092 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4093 | * @crtc: CRTC to set the gamma table size for | |
4094 | * @gamma_size: size of the gamma table | |
4095 | * | |
4096 | * Drivers which support gamma tables should set this to the supported gamma | |
4097 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4098 | * fixed gamma table size. | |
4099 | * | |
4100 | * Returns: | |
4101 | * Zero on success, errno on failure. | |
4102 | */ | |
4cae5b84 | 4103 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4104 | int gamma_size) |
f453ba04 DA |
4105 | { |
4106 | crtc->gamma_size = gamma_size; | |
4107 | ||
4108 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
4109 | if (!crtc->gamma_store) { | |
4110 | crtc->gamma_size = 0; | |
4cae5b84 | 4111 | return -ENOMEM; |
f453ba04 DA |
4112 | } |
4113 | ||
4cae5b84 | 4114 | return 0; |
f453ba04 DA |
4115 | } |
4116 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4117 | ||
c8e32cc1 DV |
4118 | /** |
4119 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4120 | * @dev: DRM device | |
4121 | * @data: ioctl data | |
4122 | * @file_priv: DRM file info | |
4123 | * | |
4124 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4125 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4126 | * | |
4127 | * Called by the user via ioctl. | |
4128 | * | |
4129 | * Returns: | |
4130 | * Zero on success, errno on failure. | |
4131 | */ | |
f453ba04 DA |
4132 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4133 | void *data, struct drm_file *file_priv) | |
4134 | { | |
4135 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4136 | struct drm_crtc *crtc; |
4137 | void *r_base, *g_base, *b_base; | |
4138 | int size; | |
4139 | int ret = 0; | |
4140 | ||
fb3b06c8 DA |
4141 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4142 | return -EINVAL; | |
4143 | ||
84849903 | 4144 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4145 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4146 | if (!crtc) { | |
f27657f2 | 4147 | ret = -ENOENT; |
f453ba04 DA |
4148 | goto out; |
4149 | } | |
f453ba04 | 4150 | |
ebe0f244 LP |
4151 | if (crtc->funcs->gamma_set == NULL) { |
4152 | ret = -ENOSYS; | |
4153 | goto out; | |
4154 | } | |
4155 | ||
f453ba04 DA |
4156 | /* memcpy into gamma store */ |
4157 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4158 | ret = -EINVAL; | |
4159 | goto out; | |
4160 | } | |
4161 | ||
4162 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4163 | r_base = crtc->gamma_store; | |
4164 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4165 | ret = -EFAULT; | |
4166 | goto out; | |
4167 | } | |
4168 | ||
4169 | g_base = r_base + size; | |
4170 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4171 | ret = -EFAULT; | |
4172 | goto out; | |
4173 | } | |
4174 | ||
4175 | b_base = g_base + size; | |
4176 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4177 | ret = -EFAULT; | |
4178 | goto out; | |
4179 | } | |
4180 | ||
7203425a | 4181 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4182 | |
4183 | out: | |
84849903 | 4184 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4185 | return ret; |
4186 | ||
4187 | } | |
4188 | ||
c8e32cc1 DV |
4189 | /** |
4190 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4191 | * @dev: DRM device | |
4192 | * @data: ioctl data | |
4193 | * @file_priv: DRM file info | |
4194 | * | |
4195 | * Copy the current gamma table into the storage provided. This also provides | |
4196 | * the gamma table size the driver expects, which can be used to size the | |
4197 | * allocated storage. | |
4198 | * | |
4199 | * Called by the user via ioctl. | |
4200 | * | |
4201 | * Returns: | |
4202 | * Zero on success, errno on failure. | |
4203 | */ | |
f453ba04 DA |
4204 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4205 | void *data, struct drm_file *file_priv) | |
4206 | { | |
4207 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4208 | struct drm_crtc *crtc; |
4209 | void *r_base, *g_base, *b_base; | |
4210 | int size; | |
4211 | int ret = 0; | |
4212 | ||
fb3b06c8 DA |
4213 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4214 | return -EINVAL; | |
4215 | ||
84849903 | 4216 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4217 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4218 | if (!crtc) { | |
f27657f2 | 4219 | ret = -ENOENT; |
f453ba04 DA |
4220 | goto out; |
4221 | } | |
f453ba04 DA |
4222 | |
4223 | /* memcpy into gamma store */ | |
4224 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4225 | ret = -EINVAL; | |
4226 | goto out; | |
4227 | } | |
4228 | ||
4229 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4230 | r_base = crtc->gamma_store; | |
4231 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4232 | ret = -EFAULT; | |
4233 | goto out; | |
4234 | } | |
4235 | ||
4236 | g_base = r_base + size; | |
4237 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4238 | ret = -EFAULT; | |
4239 | goto out; | |
4240 | } | |
4241 | ||
4242 | b_base = g_base + size; | |
4243 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4244 | ret = -EFAULT; | |
4245 | goto out; | |
4246 | } | |
4247 | out: | |
84849903 | 4248 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4249 | return ret; |
4250 | } | |
d91d8a3f | 4251 | |
c8e32cc1 DV |
4252 | /** |
4253 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4254 | * @dev: DRM device | |
4255 | * @data: ioctl data | |
4256 | * @file_priv: DRM file info | |
4257 | * | |
4258 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4259 | * Optionally a drm event is generated to signal the completion of the event. | |
4260 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4261 | * properties (including driver specific metadata like tiling layout) will work, | |
4262 | * but some drivers support e.g. pixel format changes through the pageflip | |
4263 | * ioctl. | |
4264 | * | |
4265 | * Called by the user via ioctl. | |
4266 | * | |
4267 | * Returns: | |
4268 | * Zero on success, errno on failure. | |
4269 | */ | |
d91d8a3f KH |
4270 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4271 | void *data, struct drm_file *file_priv) | |
4272 | { | |
4273 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4274 | struct drm_crtc *crtc; |
b0d12325 | 4275 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
4276 | struct drm_pending_vblank_event *e = NULL; |
4277 | unsigned long flags; | |
4278 | int ret = -EINVAL; | |
4279 | ||
4280 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4281 | page_flip->reserved != 0) | |
4282 | return -EINVAL; | |
4283 | ||
62f2104f KP |
4284 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4285 | return -EINVAL; | |
4286 | ||
a2b34e22 RC |
4287 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4288 | if (!crtc) | |
f27657f2 | 4289 | return -ENOENT; |
d91d8a3f | 4290 | |
51fd371b | 4291 | drm_modeset_lock(&crtc->mutex, NULL); |
f4510a27 | 4292 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4293 | /* The framebuffer is currently unbound, presumably |
4294 | * due to a hotplug event, that userspace has not | |
4295 | * yet discovered. | |
4296 | */ | |
4297 | ret = -EBUSY; | |
4298 | goto out; | |
4299 | } | |
4300 | ||
d91d8a3f KH |
4301 | if (crtc->funcs->page_flip == NULL) |
4302 | goto out; | |
4303 | ||
786b99ed | 4304 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4305 | if (!fb) { |
4306 | ret = -ENOENT; | |
d91d8a3f | 4307 | goto out; |
37c4e705 | 4308 | } |
d91d8a3f | 4309 | |
c11e9283 DL |
4310 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4311 | if (ret) | |
5f61bb42 | 4312 | goto out; |
5f61bb42 | 4313 | |
f4510a27 | 4314 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4315 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4316 | ret = -EINVAL; | |
4317 | goto out; | |
4318 | } | |
4319 | ||
d91d8a3f KH |
4320 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4321 | ret = -ENOMEM; | |
4322 | spin_lock_irqsave(&dev->event_lock, flags); | |
4323 | if (file_priv->event_space < sizeof e->event) { | |
4324 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4325 | goto out; | |
4326 | } | |
4327 | file_priv->event_space -= sizeof e->event; | |
4328 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4329 | ||
4330 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4331 | if (e == NULL) { | |
4332 | spin_lock_irqsave(&dev->event_lock, flags); | |
4333 | file_priv->event_space += sizeof e->event; | |
4334 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4335 | goto out; | |
4336 | } | |
4337 | ||
7bd4d7be | 4338 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4339 | e->event.base.length = sizeof e->event; |
4340 | e->event.user_data = page_flip->user_data; | |
4341 | e->base.event = &e->event.base; | |
4342 | e->base.file_priv = file_priv; | |
4343 | e->base.destroy = | |
4344 | (void (*) (struct drm_pending_event *)) kfree; | |
4345 | } | |
4346 | ||
f4510a27 | 4347 | old_fb = crtc->primary->fb; |
ed8d1975 | 4348 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4349 | if (ret) { |
aef6a7ee JS |
4350 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4351 | spin_lock_irqsave(&dev->event_lock, flags); | |
4352 | file_priv->event_space += sizeof e->event; | |
4353 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4354 | kfree(e); | |
4355 | } | |
b0d12325 DV |
4356 | /* Keep the old fb, don't unref it. */ |
4357 | old_fb = NULL; | |
4358 | } else { | |
8cf1e981 TR |
4359 | /* |
4360 | * Warn if the driver hasn't properly updated the crtc->fb | |
4361 | * field to reflect that the new framebuffer is now used. | |
4362 | * Failing to do so will screw with the reference counting | |
4363 | * on framebuffers. | |
4364 | */ | |
f4510a27 | 4365 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4366 | /* Unref only the old framebuffer. */ |
4367 | fb = NULL; | |
d91d8a3f KH |
4368 | } |
4369 | ||
4370 | out: | |
b0d12325 DV |
4371 | if (fb) |
4372 | drm_framebuffer_unreference(fb); | |
4373 | if (old_fb) | |
4374 | drm_framebuffer_unreference(old_fb); | |
51fd371b | 4375 | drm_modeset_unlock(&crtc->mutex); |
b4d5e7d1 | 4376 | |
d91d8a3f KH |
4377 | return ret; |
4378 | } | |
eb033556 | 4379 | |
c8e32cc1 DV |
4380 | /** |
4381 | * drm_mode_config_reset - call ->reset callbacks | |
4382 | * @dev: drm device | |
4383 | * | |
4384 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4385 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4386 | * reset hardware and software state. | |
4387 | */ | |
eb033556 CW |
4388 | void drm_mode_config_reset(struct drm_device *dev) |
4389 | { | |
4390 | struct drm_crtc *crtc; | |
4391 | struct drm_encoder *encoder; | |
4392 | struct drm_connector *connector; | |
4393 | ||
4394 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
4395 | if (crtc->funcs->reset) | |
4396 | crtc->funcs->reset(crtc); | |
4397 | ||
4398 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4399 | if (encoder->funcs->reset) | |
4400 | encoder->funcs->reset(encoder); | |
4401 | ||
5e2cb2f6 DV |
4402 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4403 | connector->status = connector_status_unknown; | |
4404 | ||
eb033556 CW |
4405 | if (connector->funcs->reset) |
4406 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4407 | } |
eb033556 CW |
4408 | } |
4409 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4410 | |
c8e32cc1 DV |
4411 | /** |
4412 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4413 | * @dev: DRM device | |
4414 | * @data: ioctl data | |
4415 | * @file_priv: DRM file info | |
4416 | * | |
4417 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4418 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4419 | * handle can then be wrapped up into a framebuffer modeset object. | |
4420 | * | |
4421 | * Note that userspace is not allowed to use such objects for render | |
4422 | * acceleration - drivers must create their own private ioctls for such a use | |
4423 | * case. | |
4424 | * | |
4425 | * Called by the user via ioctl. | |
4426 | * | |
4427 | * Returns: | |
4428 | * Zero on success, errno on failure. | |
4429 | */ | |
ff72145b DA |
4430 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4431 | void *data, struct drm_file *file_priv) | |
4432 | { | |
4433 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4434 | u32 cpp, stride, size; |
ff72145b DA |
4435 | |
4436 | if (!dev->driver->dumb_create) | |
4437 | return -ENOSYS; | |
b28cd41f DH |
4438 | if (!args->width || !args->height || !args->bpp) |
4439 | return -EINVAL; | |
4440 | ||
4441 | /* overflow checks for 32bit size calculations */ | |
4442 | cpp = DIV_ROUND_UP(args->bpp, 8); | |
4443 | if (cpp > 0xffffffffU / args->width) | |
4444 | return -EINVAL; | |
4445 | stride = cpp * args->width; | |
4446 | if (args->height > 0xffffffffU / stride) | |
4447 | return -EINVAL; | |
4448 | ||
4449 | /* test for wrap-around */ | |
4450 | size = args->height * stride; | |
4451 | if (PAGE_ALIGN(size) == 0) | |
4452 | return -EINVAL; | |
4453 | ||
ff72145b DA |
4454 | return dev->driver->dumb_create(file_priv, dev, args); |
4455 | } | |
4456 | ||
c8e32cc1 DV |
4457 | /** |
4458 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4459 | * @dev: DRM device | |
4460 | * @data: ioctl data | |
4461 | * @file_priv: DRM file info | |
4462 | * | |
4463 | * Allocate an offset in the drm device node's address space to be able to | |
4464 | * memory map a dumb buffer. | |
4465 | * | |
4466 | * Called by the user via ioctl. | |
4467 | * | |
4468 | * Returns: | |
4469 | * Zero on success, errno on failure. | |
4470 | */ | |
ff72145b DA |
4471 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4472 | void *data, struct drm_file *file_priv) | |
4473 | { | |
4474 | struct drm_mode_map_dumb *args = data; | |
4475 | ||
4476 | /* call driver ioctl to get mmap offset */ | |
4477 | if (!dev->driver->dumb_map_offset) | |
4478 | return -ENOSYS; | |
4479 | ||
4480 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4481 | } | |
4482 | ||
c8e32cc1 DV |
4483 | /** |
4484 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4485 | * @dev: DRM device | |
4486 | * @data: ioctl data | |
4487 | * @file_priv: DRM file info | |
4488 | * | |
4489 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4490 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4491 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4492 | * | |
4493 | * Called by the user via ioctl. | |
4494 | * | |
4495 | * Returns: | |
4496 | * Zero on success, errno on failure. | |
4497 | */ | |
ff72145b DA |
4498 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4499 | void *data, struct drm_file *file_priv) | |
4500 | { | |
4501 | struct drm_mode_destroy_dumb *args = data; | |
4502 | ||
4503 | if (!dev->driver->dumb_destroy) | |
4504 | return -ENOSYS; | |
4505 | ||
4506 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4507 | } | |
248dbc23 | 4508 | |
c8e32cc1 DV |
4509 | /** |
4510 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4511 | * @format: pixel format (DRM_FORMAT_*) | |
4512 | * @depth: storage for the depth value | |
4513 | * @bpp: storage for the bpp value | |
4514 | * | |
4515 | * This only supports RGB formats here for compat with code that doesn't use | |
4516 | * pixel formats directly yet. | |
248dbc23 DA |
4517 | */ |
4518 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4519 | int *bpp) | |
4520 | { | |
4521 | switch (format) { | |
c51a6bc5 | 4522 | case DRM_FORMAT_C8: |
04b3924d VS |
4523 | case DRM_FORMAT_RGB332: |
4524 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4525 | *depth = 8; |
4526 | *bpp = 8; | |
4527 | break; | |
04b3924d VS |
4528 | case DRM_FORMAT_XRGB1555: |
4529 | case DRM_FORMAT_XBGR1555: | |
4530 | case DRM_FORMAT_RGBX5551: | |
4531 | case DRM_FORMAT_BGRX5551: | |
4532 | case DRM_FORMAT_ARGB1555: | |
4533 | case DRM_FORMAT_ABGR1555: | |
4534 | case DRM_FORMAT_RGBA5551: | |
4535 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4536 | *depth = 15; |
4537 | *bpp = 16; | |
4538 | break; | |
04b3924d VS |
4539 | case DRM_FORMAT_RGB565: |
4540 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4541 | *depth = 16; |
4542 | *bpp = 16; | |
4543 | break; | |
04b3924d VS |
4544 | case DRM_FORMAT_RGB888: |
4545 | case DRM_FORMAT_BGR888: | |
4546 | *depth = 24; | |
4547 | *bpp = 24; | |
4548 | break; | |
4549 | case DRM_FORMAT_XRGB8888: | |
4550 | case DRM_FORMAT_XBGR8888: | |
4551 | case DRM_FORMAT_RGBX8888: | |
4552 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4553 | *depth = 24; |
4554 | *bpp = 32; | |
4555 | break; | |
04b3924d VS |
4556 | case DRM_FORMAT_XRGB2101010: |
4557 | case DRM_FORMAT_XBGR2101010: | |
4558 | case DRM_FORMAT_RGBX1010102: | |
4559 | case DRM_FORMAT_BGRX1010102: | |
4560 | case DRM_FORMAT_ARGB2101010: | |
4561 | case DRM_FORMAT_ABGR2101010: | |
4562 | case DRM_FORMAT_RGBA1010102: | |
4563 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4564 | *depth = 30; |
4565 | *bpp = 32; | |
4566 | break; | |
04b3924d VS |
4567 | case DRM_FORMAT_ARGB8888: |
4568 | case DRM_FORMAT_ABGR8888: | |
4569 | case DRM_FORMAT_RGBA8888: | |
4570 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4571 | *depth = 32; |
4572 | *bpp = 32; | |
4573 | break; | |
4574 | default: | |
23c453a4 VS |
4575 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4576 | drm_get_format_name(format)); | |
248dbc23 DA |
4577 | *depth = 0; |
4578 | *bpp = 0; | |
4579 | break; | |
4580 | } | |
4581 | } | |
4582 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4583 | |
4584 | /** | |
4585 | * drm_format_num_planes - get the number of planes for format | |
4586 | * @format: pixel format (DRM_FORMAT_*) | |
4587 | * | |
c8e32cc1 | 4588 | * Returns: |
141670e9 VS |
4589 | * The number of planes used by the specified pixel format. |
4590 | */ | |
4591 | int drm_format_num_planes(uint32_t format) | |
4592 | { | |
4593 | switch (format) { | |
4594 | case DRM_FORMAT_YUV410: | |
4595 | case DRM_FORMAT_YVU410: | |
4596 | case DRM_FORMAT_YUV411: | |
4597 | case DRM_FORMAT_YVU411: | |
4598 | case DRM_FORMAT_YUV420: | |
4599 | case DRM_FORMAT_YVU420: | |
4600 | case DRM_FORMAT_YUV422: | |
4601 | case DRM_FORMAT_YVU422: | |
4602 | case DRM_FORMAT_YUV444: | |
4603 | case DRM_FORMAT_YVU444: | |
4604 | return 3; | |
4605 | case DRM_FORMAT_NV12: | |
4606 | case DRM_FORMAT_NV21: | |
4607 | case DRM_FORMAT_NV16: | |
4608 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4609 | case DRM_FORMAT_NV24: |
4610 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4611 | return 2; |
4612 | default: | |
4613 | return 1; | |
4614 | } | |
4615 | } | |
4616 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4617 | |
4618 | /** | |
4619 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4620 | * @format: pixel format (DRM_FORMAT_*) | |
4621 | * @plane: plane index | |
4622 | * | |
c8e32cc1 | 4623 | * Returns: |
5a86bd55 VS |
4624 | * The bytes per pixel value for the specified plane. |
4625 | */ | |
4626 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4627 | { | |
4628 | unsigned int depth; | |
4629 | int bpp; | |
4630 | ||
4631 | if (plane >= drm_format_num_planes(format)) | |
4632 | return 0; | |
4633 | ||
4634 | switch (format) { | |
4635 | case DRM_FORMAT_YUYV: | |
4636 | case DRM_FORMAT_YVYU: | |
4637 | case DRM_FORMAT_UYVY: | |
4638 | case DRM_FORMAT_VYUY: | |
4639 | return 2; | |
4640 | case DRM_FORMAT_NV12: | |
4641 | case DRM_FORMAT_NV21: | |
4642 | case DRM_FORMAT_NV16: | |
4643 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4644 | case DRM_FORMAT_NV24: |
4645 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4646 | return plane ? 2 : 1; |
4647 | case DRM_FORMAT_YUV410: | |
4648 | case DRM_FORMAT_YVU410: | |
4649 | case DRM_FORMAT_YUV411: | |
4650 | case DRM_FORMAT_YVU411: | |
4651 | case DRM_FORMAT_YUV420: | |
4652 | case DRM_FORMAT_YVU420: | |
4653 | case DRM_FORMAT_YUV422: | |
4654 | case DRM_FORMAT_YVU422: | |
4655 | case DRM_FORMAT_YUV444: | |
4656 | case DRM_FORMAT_YVU444: | |
4657 | return 1; | |
4658 | default: | |
4659 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4660 | return bpp >> 3; | |
4661 | } | |
4662 | } | |
4663 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4664 | |
4665 | /** | |
4666 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4667 | * @format: pixel format (DRM_FORMAT_*) | |
4668 | * | |
c8e32cc1 | 4669 | * Returns: |
01b68b04 VS |
4670 | * The horizontal chroma subsampling factor for the |
4671 | * specified pixel format. | |
4672 | */ | |
4673 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4674 | { | |
4675 | switch (format) { | |
4676 | case DRM_FORMAT_YUV411: | |
4677 | case DRM_FORMAT_YVU411: | |
4678 | case DRM_FORMAT_YUV410: | |
4679 | case DRM_FORMAT_YVU410: | |
4680 | return 4; | |
4681 | case DRM_FORMAT_YUYV: | |
4682 | case DRM_FORMAT_YVYU: | |
4683 | case DRM_FORMAT_UYVY: | |
4684 | case DRM_FORMAT_VYUY: | |
4685 | case DRM_FORMAT_NV12: | |
4686 | case DRM_FORMAT_NV21: | |
4687 | case DRM_FORMAT_NV16: | |
4688 | case DRM_FORMAT_NV61: | |
4689 | case DRM_FORMAT_YUV422: | |
4690 | case DRM_FORMAT_YVU422: | |
4691 | case DRM_FORMAT_YUV420: | |
4692 | case DRM_FORMAT_YVU420: | |
4693 | return 2; | |
4694 | default: | |
4695 | return 1; | |
4696 | } | |
4697 | } | |
4698 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4699 | ||
4700 | /** | |
4701 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4702 | * @format: pixel format (DRM_FORMAT_*) | |
4703 | * | |
c8e32cc1 | 4704 | * Returns: |
01b68b04 VS |
4705 | * The vertical chroma subsampling factor for the |
4706 | * specified pixel format. | |
4707 | */ | |
4708 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4709 | { | |
4710 | switch (format) { | |
4711 | case DRM_FORMAT_YUV410: | |
4712 | case DRM_FORMAT_YVU410: | |
4713 | return 4; | |
4714 | case DRM_FORMAT_YUV420: | |
4715 | case DRM_FORMAT_YVU420: | |
4716 | case DRM_FORMAT_NV12: | |
4717 | case DRM_FORMAT_NV21: | |
4718 | return 2; | |
4719 | default: | |
4720 | return 1; | |
4721 | } | |
4722 | } | |
4723 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 LP |
4724 | |
4725 | /** | |
4726 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
4727 | * @dev: DRM device | |
4728 | * | |
4729 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
4730 | * configuration of @dev. | |
4731 | * | |
4732 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
4733 | * problem, since this should happen single threaded at init time. It is the | |
4734 | * driver's problem to ensure this guarantee. | |
4735 | * | |
4736 | */ | |
4737 | void drm_mode_config_init(struct drm_device *dev) | |
4738 | { | |
4739 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 4740 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
4741 | mutex_init(&dev->mode_config.idr_mutex); |
4742 | mutex_init(&dev->mode_config.fb_lock); | |
4743 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
4744 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
4745 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 4746 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
4747 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
4748 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
4749 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
4750 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
4751 | idr_init(&dev->mode_config.crtc_idr); | |
4752 | ||
4753 | drm_modeset_lock_all(dev); | |
4754 | drm_mode_create_standard_connector_properties(dev); | |
9922ab5a | 4755 | drm_mode_create_standard_plane_properties(dev); |
87d24fc3 LP |
4756 | drm_modeset_unlock_all(dev); |
4757 | ||
4758 | /* Just to be sure */ | |
4759 | dev->mode_config.num_fb = 0; | |
4760 | dev->mode_config.num_connector = 0; | |
4761 | dev->mode_config.num_crtc = 0; | |
4762 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
4763 | dev->mode_config.num_overlay_plane = 0; |
4764 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
4765 | } |
4766 | EXPORT_SYMBOL(drm_mode_config_init); | |
4767 | ||
4768 | /** | |
4769 | * drm_mode_config_cleanup - free up DRM mode_config info | |
4770 | * @dev: DRM device | |
4771 | * | |
4772 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
4773 | * free up the framebuffers and associated buffer objects. | |
4774 | * | |
4775 | * Note that since this /should/ happen single-threaded at driver/device | |
4776 | * teardown time, no locking is required. It's the driver's job to ensure that | |
4777 | * this guarantee actually holds true. | |
4778 | * | |
4779 | * FIXME: cleanup any dangling user buffer objects too | |
4780 | */ | |
4781 | void drm_mode_config_cleanup(struct drm_device *dev) | |
4782 | { | |
4783 | struct drm_connector *connector, *ot; | |
4784 | struct drm_crtc *crtc, *ct; | |
4785 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 4786 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
4787 | struct drm_framebuffer *fb, *fbt; |
4788 | struct drm_property *property, *pt; | |
4789 | struct drm_property_blob *blob, *bt; | |
4790 | struct drm_plane *plane, *plt; | |
4791 | ||
4792 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
4793 | head) { | |
4794 | encoder->funcs->destroy(encoder); | |
4795 | } | |
4796 | ||
3b336ec4 SP |
4797 | list_for_each_entry_safe(bridge, brt, |
4798 | &dev->mode_config.bridge_list, head) { | |
4799 | bridge->funcs->destroy(bridge); | |
4800 | } | |
4801 | ||
87d24fc3 LP |
4802 | list_for_each_entry_safe(connector, ot, |
4803 | &dev->mode_config.connector_list, head) { | |
4804 | connector->funcs->destroy(connector); | |
4805 | } | |
4806 | ||
4807 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
4808 | head) { | |
4809 | drm_property_destroy(dev, property); | |
4810 | } | |
4811 | ||
4812 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
4813 | head) { | |
4814 | drm_property_destroy_blob(dev, blob); | |
4815 | } | |
4816 | ||
4817 | /* | |
4818 | * Single-threaded teardown context, so it's not required to grab the | |
4819 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
4820 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
4821 | * | |
4822 | * Also, if there are any framebuffers left, that's a driver leak now, | |
4823 | * so politely WARN about this. | |
4824 | */ | |
4825 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
4826 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
4827 | drm_framebuffer_remove(fb); | |
4828 | } | |
4829 | ||
4830 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
4831 | head) { | |
4832 | plane->funcs->destroy(plane); | |
4833 | } | |
4834 | ||
4835 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
4836 | crtc->funcs->destroy(crtc); | |
4837 | } | |
4838 | ||
4839 | idr_destroy(&dev->mode_config.crtc_idr); | |
51fd371b | 4840 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
4841 | } |
4842 | EXPORT_SYMBOL(drm_mode_config_cleanup); |