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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> |
88a48e29 | 41 | #include <drm/drm_atomic.h> |
3b96a0b1 | 42 | #include <drm/drm_auth.h> |
f453ba04 | 43 | |
8bd441b2 | 44 | #include "drm_crtc_internal.h" |
67d0ec4e | 45 | #include "drm_internal.h" |
8bd441b2 | 46 | |
9a6f5130 CW |
47 | static struct drm_framebuffer * |
48 | internal_framebuffer_create(struct drm_device *dev, | |
1eb83451 | 49 | const struct drm_mode_fb_cmd2 *r, |
9a6f5130 | 50 | struct drm_file *file_priv); |
c394c2b0 | 51 | |
f453ba04 DA |
52 | /* Avoid boilerplate. I'm tired of typing. */ |
53 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 54 | const char *fnname(int val) \ |
f453ba04 DA |
55 | { \ |
56 | int i; \ | |
57 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
58 | if (list[i].type == val) \ | |
59 | return list[i].name; \ | |
60 | } \ | |
61 | return "(unknown)"; \ | |
62 | } | |
63 | ||
64 | /* | |
65 | * Global properties | |
66 | */ | |
4dfd909f TR |
67 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
68 | { DRM_MODE_DPMS_ON, "On" }, | |
f453ba04 DA |
69 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
70 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
71 | { DRM_MODE_DPMS_OFF, "Off" } | |
72 | }; | |
73 | ||
74 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
75 | ||
4dfd909f | 76 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
9922ab5a RC |
77 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
78 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
79 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
80 | }; | |
81 | ||
f453ba04 DA |
82 | /* |
83 | * Optional properties | |
84 | */ | |
4dfd909f | 85 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
53bd8389 JB |
86 | { DRM_MODE_SCALE_NONE, "None" }, |
87 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
88 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
89 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
90 | }; |
91 | ||
ff587e45 VK |
92 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
93 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
94 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
95 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
96 | }; | |
97 | ||
f453ba04 DA |
98 | /* |
99 | * Non-global properties, but "required" for certain connectors. | |
100 | */ | |
4dfd909f | 101 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
f453ba04 DA |
102 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
103 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
104 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
105 | }; | |
106 | ||
107 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
108 | ||
4dfd909f | 109 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
f453ba04 DA |
110 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
111 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
112 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
113 | }; | |
114 | ||
115 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
116 | drm_dvi_i_subconnector_enum_list) | |
117 | ||
4dfd909f | 118 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
f453ba04 DA |
119 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
120 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
122 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 123 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
124 | }; |
125 | ||
126 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
127 | ||
4dfd909f | 128 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
f453ba04 DA |
129 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
130 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
131 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
132 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 133 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
134 | }; |
135 | ||
136 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
137 | drm_tv_subconnector_enum_list) | |
138 | ||
d20d3174 | 139 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
140 | { DRM_MODE_DIRTY_OFF, "Off" }, |
141 | { DRM_MODE_DIRTY_ON, "On" }, | |
142 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
143 | }; | |
144 | ||
f453ba04 DA |
145 | struct drm_conn_prop_enum_list { |
146 | int type; | |
d20d3174 | 147 | const char *name; |
b21e3afe | 148 | struct ida ida; |
f453ba04 DA |
149 | }; |
150 | ||
151 | /* | |
152 | * Connector and encoder types. | |
153 | */ | |
4dfd909f TR |
154 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
155 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
b21e3afe IM |
156 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
157 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
158 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
159 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
160 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
161 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
162 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
163 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
164 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
165 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
166 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
167 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
168 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
169 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
170 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 171 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
0b27c02a | 172 | { DRM_MODE_CONNECTOR_DPI, "DPI" }, |
f453ba04 DA |
173 | }; |
174 | ||
4dfd909f TR |
175 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
176 | { DRM_MODE_ENCODER_NONE, "None" }, | |
f453ba04 DA |
177 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
178 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
179 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
180 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 181 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 182 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 183 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
0b27c02a | 184 | { DRM_MODE_ENCODER_DPI, "DPI" }, |
f453ba04 DA |
185 | }; |
186 | ||
4dfd909f | 187 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
ac1bb36c JB |
188 | { SubPixelUnknown, "Unknown" }, |
189 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
190 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
191 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
192 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
193 | { SubPixelNone, "None" }, | |
194 | }; | |
195 | ||
b21e3afe IM |
196 | void drm_connector_ida_init(void) |
197 | { | |
198 | int i; | |
199 | ||
200 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
201 | ida_init(&drm_connector_enum_list[i].ida); | |
202 | } | |
203 | ||
204 | void drm_connector_ida_destroy(void) | |
205 | { | |
206 | int i; | |
207 | ||
208 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
209 | ida_destroy(&drm_connector_enum_list[i].ida); | |
210 | } | |
211 | ||
c8e32cc1 DV |
212 | /** |
213 | * drm_get_connector_status_name - return a string for connector status | |
214 | * @status: connector status to compute name of | |
215 | * | |
216 | * In contrast to the other drm_get_*_name functions this one here returns a | |
217 | * const pointer and hence is threadsafe. | |
218 | */ | |
d20d3174 | 219 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
220 | { |
221 | if (status == connector_status_connected) | |
222 | return "connected"; | |
223 | else if (status == connector_status_disconnected) | |
224 | return "disconnected"; | |
225 | else | |
226 | return "unknown"; | |
227 | } | |
ed7951dc | 228 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 229 | |
ac1bb36c JB |
230 | /** |
231 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
232 | * @order: enum of subpixel_order | |
233 | * | |
234 | * Note you could abuse this and return something out of bounds, but that | |
235 | * would be a caller error. No unscrubbed user data should make it here. | |
236 | */ | |
237 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
238 | { | |
239 | return drm_subpixel_enum_list[order].name; | |
240 | } | |
241 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
242 | ||
2ee39452 DA |
243 | /* |
244 | * Internal function to assign a slot in the object idr and optionally | |
245 | * register the object into the idr. | |
246 | */ | |
247 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
248 | struct drm_mode_object *obj, | |
249 | uint32_t obj_type, | |
d0f37cf6 DA |
250 | bool register_obj, |
251 | void (*obj_free_cb)(struct kref *kref)) | |
2ee39452 DA |
252 | { |
253 | int ret; | |
254 | ||
255 | mutex_lock(&dev->mode_config.idr_mutex); | |
256 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
257 | if (ret >= 0) { | |
258 | /* | |
259 | * Set up the object linking under the protection of the idr | |
260 | * lock so that other users can't see inconsistent state. | |
261 | */ | |
262 | obj->id = ret; | |
263 | obj->type = obj_type; | |
d0f37cf6 DA |
264 | if (obj_free_cb) { |
265 | obj->free_cb = obj_free_cb; | |
266 | kref_init(&obj->refcount); | |
267 | } | |
2ee39452 DA |
268 | } |
269 | mutex_unlock(&dev->mode_config.idr_mutex); | |
270 | ||
271 | return ret < 0 ? ret : 0; | |
272 | } | |
273 | ||
f453ba04 | 274 | /** |
065a50ed | 275 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 276 | * @dev: DRM device |
065a50ed DV |
277 | * @obj: object pointer, used to generate unique ID |
278 | * @obj_type: object type | |
f453ba04 | 279 | * |
f453ba04 | 280 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
281 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
282 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
283 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 284 | * |
c8e32cc1 | 285 | * Returns: |
3c67d839 | 286 | * Zero on success, error code on failure. |
f453ba04 | 287 | */ |
8bd441b2 DV |
288 | int drm_mode_object_get(struct drm_device *dev, |
289 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 290 | { |
d0f37cf6 | 291 | return drm_mode_object_get_reg(dev, obj, obj_type, true, NULL); |
2ee39452 | 292 | } |
f453ba04 | 293 | |
2ee39452 DA |
294 | static void drm_mode_object_register(struct drm_device *dev, |
295 | struct drm_mode_object *obj) | |
296 | { | |
ad2563c2 | 297 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 298 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 299 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
300 | } |
301 | ||
302 | /** | |
7c8f6d25 | 303 | * drm_mode_object_unregister - free a modeset identifer |
f453ba04 | 304 | * @dev: DRM device |
065a50ed | 305 | * @object: object to free |
f453ba04 | 306 | * |
7c8f6d25 DA |
307 | * Free @id from @dev's unique identifier pool. |
308 | * This function can be called multiple times, and guards against | |
309 | * multiple removals. | |
310 | * These modeset identifiers are _not_ reference counted. Hence don't use this | |
c8e32cc1 | 311 | * for reference counted modeset objects like framebuffers. |
f453ba04 | 312 | */ |
7c8f6d25 | 313 | void drm_mode_object_unregister(struct drm_device *dev, |
8bd441b2 | 314 | struct drm_mode_object *object) |
f453ba04 | 315 | { |
ad2563c2 | 316 | mutex_lock(&dev->mode_config.idr_mutex); |
7c8f6d25 DA |
317 | if (object->id) { |
318 | idr_remove(&dev->mode_config.crtc_idr, object->id); | |
319 | object->id = 0; | |
320 | } | |
ad2563c2 | 321 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
322 | } |
323 | ||
98f75de4 RC |
324 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
325 | uint32_t id, uint32_t type) | |
326 | { | |
327 | struct drm_mode_object *obj = NULL; | |
328 | ||
329 | mutex_lock(&dev->mode_config.idr_mutex); | |
330 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
331 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
332 | obj = NULL; | |
333 | if (obj && obj->id != id) | |
334 | obj = NULL; | |
72fe90b8 DA |
335 | |
336 | if (obj && obj->free_cb) { | |
337 | if (!kref_get_unless_zero(&obj->refcount)) | |
338 | obj = NULL; | |
339 | } | |
98f75de4 RC |
340 | mutex_unlock(&dev->mode_config.idr_mutex); |
341 | ||
342 | return obj; | |
343 | } | |
344 | ||
786b99ed DV |
345 | /** |
346 | * drm_mode_object_find - look up a drm object with static lifetime | |
347 | * @dev: drm device | |
348 | * @id: id of the mode object | |
349 | * @type: type of the mode object | |
350 | * | |
05981422 DV |
351 | * This function is used to look up a modeset object. It will acquire a |
352 | * reference for reference counted objects. This reference must be dropped again | |
353 | * by callind drm_mode_object_unreference(). | |
786b99ed | 354 | */ |
7a9c9060 DV |
355 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
356 | uint32_t id, uint32_t type) | |
f453ba04 | 357 | { |
ad2563c2 | 358 | struct drm_mode_object *obj = NULL; |
f453ba04 | 359 | |
98f75de4 | 360 | obj = _object_find(dev, id, type); |
f453ba04 DA |
361 | return obj; |
362 | } | |
363 | EXPORT_SYMBOL(drm_mode_object_find); | |
364 | ||
05981422 DV |
365 | /** |
366 | * drm_mode_object_unreference - decr the object refcnt | |
367 | * @obj: mode_object | |
368 | * | |
369 | * This functions decrements the object's refcount if it is a refcounted modeset | |
370 | * object. It is a no-op on any other object. This is used to drop references | |
371 | * acquired with drm_mode_object_reference(). | |
372 | */ | |
d0f37cf6 DA |
373 | void drm_mode_object_unreference(struct drm_mode_object *obj) |
374 | { | |
375 | if (obj->free_cb) { | |
376 | DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); | |
377 | kref_put(&obj->refcount, obj->free_cb); | |
378 | } | |
379 | } | |
380 | EXPORT_SYMBOL(drm_mode_object_unreference); | |
381 | ||
382 | /** | |
05981422 | 383 | * drm_mode_object_reference - incr the object refcnt |
d0f37cf6 DA |
384 | * @obj: mode_object |
385 | * | |
05981422 DV |
386 | * This functions increments the object's refcount if it is a refcounted modeset |
387 | * object. It is a no-op on any other object. References should be dropped again | |
388 | * by calling drm_mode_object_unreference(). | |
d0f37cf6 DA |
389 | */ |
390 | void drm_mode_object_reference(struct drm_mode_object *obj) | |
391 | { | |
392 | if (obj->free_cb) { | |
393 | DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); | |
394 | kref_get(&obj->refcount); | |
395 | } | |
396 | } | |
397 | EXPORT_SYMBOL(drm_mode_object_reference); | |
398 | ||
6a0d9528 LW |
399 | /** |
400 | * drm_crtc_force_disable - Forcibly turn off a CRTC | |
401 | * @crtc: CRTC to turn off | |
402 | * | |
403 | * Returns: | |
404 | * Zero on success, error code on failure. | |
405 | */ | |
406 | int drm_crtc_force_disable(struct drm_crtc *crtc) | |
407 | { | |
408 | struct drm_mode_set set = { | |
409 | .crtc = crtc, | |
410 | }; | |
411 | ||
412 | return drm_mode_set_config_internal(&set); | |
413 | } | |
414 | EXPORT_SYMBOL(drm_crtc_force_disable); | |
415 | ||
416 | /** | |
417 | * drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs | |
418 | * @dev: DRM device whose CRTCs to turn off | |
419 | * | |
420 | * Drivers may want to call this on unload to ensure that all displays are | |
421 | * unlit and the GPU is in a consistent, low power state. Takes modeset locks. | |
422 | * | |
423 | * Returns: | |
424 | * Zero on success, error code on failure. | |
425 | */ | |
426 | int drm_crtc_force_disable_all(struct drm_device *dev) | |
427 | { | |
428 | struct drm_crtc *crtc; | |
429 | int ret = 0; | |
430 | ||
431 | drm_modeset_lock_all(dev); | |
432 | drm_for_each_crtc(crtc, dev) | |
433 | if (crtc->enabled) { | |
434 | ret = drm_crtc_force_disable(crtc); | |
435 | if (ret) | |
436 | goto out; | |
437 | } | |
438 | out: | |
439 | drm_modeset_unlock_all(dev); | |
440 | return ret; | |
441 | } | |
442 | EXPORT_SYMBOL(drm_crtc_force_disable_all); | |
443 | ||
f55f1f91 DA |
444 | static void drm_framebuffer_free(struct kref *kref) |
445 | { | |
446 | struct drm_framebuffer *fb = | |
d0f37cf6 | 447 | container_of(kref, struct drm_framebuffer, base.refcount); |
f55f1f91 DA |
448 | struct drm_device *dev = fb->dev; |
449 | ||
450 | /* | |
451 | * The lookup idr holds a weak reference, which has not necessarily been | |
452 | * removed at this point. Check for that. | |
453 | */ | |
19ab3f8b | 454 | drm_mode_object_unregister(dev, &fb->base); |
f55f1f91 DA |
455 | |
456 | fb->funcs->destroy(fb); | |
457 | } | |
458 | ||
f453ba04 DA |
459 | /** |
460 | * drm_framebuffer_init - initialize a framebuffer | |
461 | * @dev: DRM device | |
065a50ed DV |
462 | * @fb: framebuffer to be initialized |
463 | * @funcs: ... with these functions | |
f453ba04 | 464 | * |
f453ba04 DA |
465 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
466 | * functions & device file and adds it to the master fd list. | |
467 | * | |
4b096ac1 DV |
468 | * IMPORTANT: |
469 | * This functions publishes the fb and makes it available for concurrent access | |
470 | * by other users. Which means by this point the fb _must_ be fully set up - | |
471 | * since all the fb attributes are invariant over its lifetime, no further | |
472 | * locking but only correct reference counting is required. | |
473 | * | |
c8e32cc1 | 474 | * Returns: |
af901ca1 | 475 | * Zero on success, error code on failure. |
f453ba04 DA |
476 | */ |
477 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
478 | const struct drm_framebuffer_funcs *funcs) | |
479 | { | |
480 | int ret; | |
481 | ||
4b096ac1 DV |
482 | INIT_LIST_HEAD(&fb->filp_head); |
483 | fb->dev = dev; | |
484 | fb->funcs = funcs; | |
f7eff60e | 485 | |
d0f37cf6 | 486 | ret = drm_mode_object_get_reg(dev, &fb->base, DRM_MODE_OBJECT_FB, |
9cd47424 | 487 | false, drm_framebuffer_free); |
6bfc56aa | 488 | if (ret) |
4b096ac1 | 489 | goto out; |
f453ba04 | 490 | |
9cd47424 | 491 | mutex_lock(&dev->mode_config.fb_lock); |
f453ba04 DA |
492 | dev->mode_config.num_fb++; |
493 | list_add(&fb->head, &dev->mode_config.fb_list); | |
2ddea3fd | 494 | mutex_unlock(&dev->mode_config.fb_lock); |
f453ba04 | 495 | |
9cd47424 | 496 | drm_mode_object_register(dev, &fb->base); |
9cd47424 | 497 | out: |
3c67d839 | 498 | return ret; |
f453ba04 DA |
499 | } |
500 | EXPORT_SYMBOL(drm_framebuffer_init); | |
501 | ||
786b99ed DV |
502 | /** |
503 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
504 | * @dev: drm device | |
505 | * @id: id of the fb object | |
506 | * | |
507 | * If successful, this grabs an additional reference to the framebuffer - | |
508 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 509 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
510 | */ |
511 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
512 | uint32_t id) | |
513 | { | |
cee26ac4 DA |
514 | struct drm_mode_object *obj; |
515 | struct drm_framebuffer *fb = NULL; | |
786b99ed | 516 | |
cee26ac4 | 517 | obj = _object_find(dev, id, DRM_MODE_OBJECT_FB); |
72fe90b8 | 518 | if (obj) |
cee26ac4 | 519 | fb = obj_to_fb(obj); |
786b99ed DV |
520 | return fb; |
521 | } | |
522 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
523 | ||
36206361 DV |
524 | /** |
525 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
526 | * @fb: fb to unregister | |
527 | * | |
528 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
529 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
530 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
531 | * locking inversion). | |
532 | */ | |
533 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
534 | { | |
a39a357c DV |
535 | struct drm_device *dev; |
536 | ||
537 | if (!fb) | |
538 | return; | |
539 | ||
540 | dev = fb->dev; | |
2b677e8c | 541 | |
2b677e8c | 542 | /* Mark fb as reaped and drop idr ref. */ |
19ab3f8b | 543 | drm_mode_object_unregister(dev, &fb->base); |
36206361 DV |
544 | } |
545 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
546 | ||
f453ba04 DA |
547 | /** |
548 | * drm_framebuffer_cleanup - remove a framebuffer object | |
549 | * @fb: framebuffer to remove | |
550 | * | |
c8e32cc1 DV |
551 | * Cleanup framebuffer. This function is intended to be used from the drivers |
552 | * ->destroy callback. It can also be used to clean up driver private | |
2e7a5701 | 553 | * framebuffers embedded into a larger structure. |
36206361 DV |
554 | * |
555 | * Note that this function does not remove the fb from active usuage - if it is | |
556 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
557 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
558 | * | |
559 | * Also, the framebuffer will not be removed from the lookup idr - for | |
560 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
561 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
562 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
563 | */ |
564 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
565 | { |
566 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 567 | |
4b096ac1 | 568 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
569 | list_del(&fb->head); |
570 | dev->mode_config.num_fb--; | |
4b096ac1 | 571 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
572 | } |
573 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
574 | ||
575 | /** | |
576 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
577 | * @fb: framebuffer to remove | |
578 | * | |
f7eff60e | 579 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 580 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
581 | * passed-in framebuffer. Might take the modeset locks. |
582 | * | |
583 | * Note that this function optimizes the cleanup away if the caller holds the | |
584 | * last reference to the framebuffer. It is also guaranteed to not take the | |
585 | * modeset locks in this case. | |
f7eff60e RC |
586 | */ |
587 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 | 588 | { |
a39a357c | 589 | struct drm_device *dev; |
f453ba04 | 590 | struct drm_crtc *crtc; |
8cf5c917 | 591 | struct drm_plane *plane; |
f453ba04 | 592 | |
a39a357c DV |
593 | if (!fb) |
594 | return; | |
595 | ||
596 | dev = fb->dev; | |
597 | ||
4b096ac1 | 598 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 599 | |
b62584e3 DV |
600 | /* |
601 | * drm ABI mandates that we remove any deleted framebuffers from active | |
602 | * useage. But since most sane clients only remove framebuffers they no | |
603 | * longer need, try to optimize this away. | |
604 | * | |
605 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
606 | * means that we're the last holder and can skip it. Also, the refcount | |
607 | * can never increase from 1 again, so we don't need any barriers or | |
608 | * locks. | |
609 | * | |
610 | * Note that userspace could try to race with use and instate a new | |
611 | * usage _after_ we've cleared all current ones. End result will be an | |
612 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
613 | * in this manner. | |
614 | */ | |
747a598f | 615 | if (drm_framebuffer_read_refcount(fb) > 1) { |
b62584e3 DV |
616 | drm_modeset_lock_all(dev); |
617 | /* remove from any CRTC */ | |
6295d607 | 618 | drm_for_each_crtc(crtc, dev) { |
f4510a27 | 619 | if (crtc->primary->fb == fb) { |
b62584e3 | 620 | /* should turn off the crtc */ |
3e31d24d | 621 | if (drm_crtc_force_disable(crtc)) |
b62584e3 DV |
622 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); |
623 | } | |
5ef5f72f | 624 | } |
f453ba04 | 625 | |
6295d607 | 626 | drm_for_each_plane(plane, dev) { |
9125e618 VS |
627 | if (plane->fb == fb) |
628 | drm_plane_force_disable(plane); | |
8cf5c917 | 629 | } |
b62584e3 | 630 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
631 | } |
632 | ||
f7eff60e | 633 | drm_framebuffer_unreference(fb); |
f453ba04 | 634 | } |
f7eff60e | 635 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 636 | |
51fd371b RC |
637 | DEFINE_WW_CLASS(crtc_ww_class); |
638 | ||
fa3ab4c2 VS |
639 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
640 | { | |
641 | unsigned int num = 0; | |
642 | struct drm_crtc *tmp; | |
643 | ||
644 | drm_for_each_crtc(tmp, dev) { | |
645 | num++; | |
646 | } | |
647 | ||
648 | return num; | |
649 | } | |
650 | ||
79190ea2 BG |
651 | static int drm_crtc_register_all(struct drm_device *dev) |
652 | { | |
653 | struct drm_crtc *crtc; | |
654 | int ret = 0; | |
655 | ||
656 | drm_for_each_crtc(crtc, dev) { | |
657 | if (crtc->funcs->late_register) | |
658 | ret = crtc->funcs->late_register(crtc); | |
659 | if (ret) | |
660 | return ret; | |
661 | } | |
662 | ||
663 | return 0; | |
664 | } | |
665 | ||
666 | static void drm_crtc_unregister_all(struct drm_device *dev) | |
667 | { | |
668 | struct drm_crtc *crtc; | |
669 | ||
670 | drm_for_each_crtc(crtc, dev) { | |
671 | if (crtc->funcs->early_unregister) | |
672 | crtc->funcs->early_unregister(crtc); | |
673 | } | |
674 | } | |
675 | ||
f453ba04 | 676 | /** |
e13161af MR |
677 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
678 | * specified primary and cursor planes. | |
f453ba04 DA |
679 | * @dev: DRM device |
680 | * @crtc: CRTC object to init | |
e13161af MR |
681 | * @primary: Primary plane for CRTC |
682 | * @cursor: Cursor plane for CRTC | |
f453ba04 | 683 | * @funcs: callbacks for the new CRTC |
f9882876 | 684 | * @name: printf style format string for the CRTC name, or NULL for default name |
f453ba04 | 685 | * |
ad6f5c34 | 686 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 687 | * |
c8e32cc1 | 688 | * Returns: |
6bfc56aa | 689 | * Zero on success, error code on failure. |
f453ba04 | 690 | */ |
e13161af MR |
691 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
692 | struct drm_plane *primary, | |
fc1d3e44 | 693 | struct drm_plane *cursor, |
f9882876 VS |
694 | const struct drm_crtc_funcs *funcs, |
695 | const char *name, ...) | |
f453ba04 | 696 | { |
51fd371b | 697 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
698 | int ret; |
699 | ||
522cf91f BG |
700 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
701 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); | |
702 | ||
f453ba04 DA |
703 | crtc->dev = dev; |
704 | crtc->funcs = funcs; | |
705 | ||
3b24f7d6 DV |
706 | INIT_LIST_HEAD(&crtc->commit_list); |
707 | spin_lock_init(&crtc->commit_lock); | |
708 | ||
51fd371b | 709 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
710 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
711 | if (ret) | |
baf698b0 | 712 | return ret; |
f453ba04 | 713 | |
fa3ab4c2 VS |
714 | if (name) { |
715 | va_list ap; | |
716 | ||
717 | va_start(ap, name); | |
718 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); | |
719 | va_end(ap); | |
720 | } else { | |
721 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", | |
722 | drm_num_crtcs(dev)); | |
723 | } | |
724 | if (!crtc->name) { | |
7c8f6d25 | 725 | drm_mode_object_unregister(dev, &crtc->base); |
fa3ab4c2 VS |
726 | return -ENOMEM; |
727 | } | |
728 | ||
bffd9de0 PZ |
729 | crtc->base.properties = &crtc->properties; |
730 | ||
51fd371b | 731 | list_add_tail(&crtc->head, &config->crtc_list); |
490d3d1b | 732 | crtc->index = config->num_crtc++; |
6bfc56aa | 733 | |
e13161af | 734 | crtc->primary = primary; |
fc1d3e44 | 735 | crtc->cursor = cursor; |
e13161af MR |
736 | if (primary) |
737 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
738 | if (cursor) |
739 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 740 | |
eab3bbef DV |
741 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
742 | drm_object_attach_property(&crtc->base, config->prop_active, 0); | |
955f3c33 | 743 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
eab3bbef DV |
744 | } |
745 | ||
baf698b0 | 746 | return 0; |
f453ba04 | 747 | } |
e13161af | 748 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
749 | |
750 | /** | |
ad6f5c34 | 751 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
752 | * @crtc: CRTC to cleanup |
753 | * | |
ad6f5c34 VS |
754 | * This function cleans up @crtc and removes it from the DRM mode setting |
755 | * core. Note that the function does *not* free the crtc structure itself, | |
756 | * this is the responsibility of the caller. | |
f453ba04 DA |
757 | */ |
758 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
759 | { | |
760 | struct drm_device *dev = crtc->dev; | |
761 | ||
490d3d1b CW |
762 | /* Note that the crtc_list is considered to be static; should we |
763 | * remove the drm_crtc at runtime we would have to decrement all | |
764 | * the indices on the drm_crtc after us in the crtc_list. | |
765 | */ | |
766 | ||
9e1c156f SK |
767 | kfree(crtc->gamma_store); |
768 | crtc->gamma_store = NULL; | |
f453ba04 | 769 | |
51fd371b RC |
770 | drm_modeset_lock_fini(&crtc->mutex); |
771 | ||
7c8f6d25 | 772 | drm_mode_object_unregister(dev, &crtc->base); |
f453ba04 DA |
773 | list_del(&crtc->head); |
774 | dev->mode_config.num_crtc--; | |
3009c037 TR |
775 | |
776 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); | |
777 | if (crtc->state && crtc->funcs->atomic_destroy_state) | |
778 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); | |
a18c0af1 | 779 | |
fa3ab4c2 VS |
780 | kfree(crtc->name); |
781 | ||
a18c0af1 | 782 | memset(crtc, 0, sizeof(*crtc)); |
f453ba04 DA |
783 | } |
784 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
785 | ||
86f422d5 | 786 | /* |
f453ba04 DA |
787 | * drm_mode_remove - remove and free a mode |
788 | * @connector: connector list to modify | |
789 | * @mode: mode to remove | |
790 | * | |
f453ba04 DA |
791 | * Remove @mode from @connector's mode list, then free it. |
792 | */ | |
86f422d5 LD |
793 | static void drm_mode_remove(struct drm_connector *connector, |
794 | struct drm_display_mode *mode) | |
f453ba04 DA |
795 | { |
796 | list_del(&mode->head); | |
554f1d78 | 797 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 798 | } |
f453ba04 | 799 | |
b5571e9d BB |
800 | /** |
801 | * drm_display_info_set_bus_formats - set the supported bus formats | |
802 | * @info: display info to store bus formats in | |
e37bfa1a BB |
803 | * @formats: array containing the supported bus formats |
804 | * @num_formats: the number of entries in the fmts array | |
b5571e9d BB |
805 | * |
806 | * Store the supported bus formats in display info structure. | |
807 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
808 | * a full list of available formats. | |
809 | */ | |
810 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
811 | const u32 *formats, | |
812 | unsigned int num_formats) | |
813 | { | |
814 | u32 *fmts = NULL; | |
815 | ||
816 | if (!formats && num_formats) | |
817 | return -EINVAL; | |
818 | ||
819 | if (formats && num_formats) { | |
820 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
821 | GFP_KERNEL); | |
944579c5 | 822 | if (!fmts) |
b5571e9d BB |
823 | return -ENOMEM; |
824 | } | |
825 | ||
826 | kfree(info->bus_formats); | |
827 | info->bus_formats = fmts; | |
828 | info->num_bus_formats = num_formats; | |
829 | ||
830 | return 0; | |
831 | } | |
832 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
833 | ||
eaf99c74 CW |
834 | /** |
835 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
836 | * @connector: connector to quwery | |
eaf99c74 CW |
837 | * |
838 | * The kernel supports per-connector configration of its consoles through | |
839 | * use of the video= parameter. This function parses that option and | |
840 | * extracts the user's specified mode (or enable/disable status) for a | |
841 | * particular connector. This is typically only used during the early fbdev | |
842 | * setup. | |
843 | */ | |
844 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
845 | { | |
846 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
847 | char *option = NULL; | |
848 | ||
849 | if (fb_get_options(connector->name, &option)) | |
850 | return; | |
851 | ||
852 | if (!drm_mode_parse_command_line_for_connector(option, | |
853 | connector, | |
854 | mode)) | |
855 | return; | |
856 | ||
857 | if (mode->force) { | |
858 | const char *s; | |
859 | ||
860 | switch (mode->force) { | |
861 | case DRM_FORCE_OFF: | |
862 | s = "OFF"; | |
863 | break; | |
864 | case DRM_FORCE_ON_DIGITAL: | |
865 | s = "ON - dig"; | |
866 | break; | |
867 | default: | |
868 | case DRM_FORCE_ON: | |
869 | s = "ON"; | |
870 | break; | |
871 | } | |
872 | ||
873 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
874 | connector->force = mode->force; | |
875 | } | |
876 | ||
877 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
878 | connector->name, | |
879 | mode->xres, mode->yres, | |
880 | mode->refresh_specified ? mode->refresh : 60, | |
881 | mode->rb ? " reduced blanking" : "", | |
882 | mode->margins ? " with margins" : "", | |
883 | mode->interlace ? " interlaced" : ""); | |
884 | } | |
885 | ||
b164d31f DA |
886 | static void drm_connector_free(struct kref *kref) |
887 | { | |
888 | struct drm_connector *connector = | |
889 | container_of(kref, struct drm_connector, base.refcount); | |
890 | struct drm_device *dev = connector->dev; | |
891 | ||
892 | drm_mode_object_unregister(dev, &connector->base); | |
893 | connector->funcs->destroy(connector); | |
894 | } | |
895 | ||
f453ba04 DA |
896 | /** |
897 | * drm_connector_init - Init a preallocated connector | |
898 | * @dev: DRM device | |
899 | * @connector: the connector to init | |
900 | * @funcs: callbacks for this connector | |
065a50ed | 901 | * @connector_type: user visible type of the connector |
f453ba04 | 902 | * |
f453ba04 DA |
903 | * Initialises a preallocated connector. Connectors should be |
904 | * subclassed as part of driver connector objects. | |
6bfc56aa | 905 | * |
c8e32cc1 | 906 | * Returns: |
6bfc56aa | 907 | * Zero on success, error code on failure. |
f453ba04 | 908 | */ |
6bfc56aa VS |
909 | int drm_connector_init(struct drm_device *dev, |
910 | struct drm_connector *connector, | |
911 | const struct drm_connector_funcs *funcs, | |
912 | int connector_type) | |
f453ba04 | 913 | { |
ae16c597 | 914 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa | 915 | int ret; |
b21e3afe IM |
916 | struct ida *connector_ida = |
917 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 918 | |
84849903 | 919 | drm_modeset_lock_all(dev); |
f453ba04 | 920 | |
b164d31f DA |
921 | ret = drm_mode_object_get_reg(dev, &connector->base, |
922 | DRM_MODE_OBJECT_CONNECTOR, | |
923 | false, drm_connector_free); | |
6bfc56aa | 924 | if (ret) |
2abdd313 | 925 | goto out_unlock; |
6bfc56aa | 926 | |
7e3bdf4a | 927 | connector->base.properties = &connector->properties; |
f453ba04 DA |
928 | connector->dev = dev; |
929 | connector->funcs = funcs; | |
5fff80bb | 930 | |
69425599 DV |
931 | ret = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); |
932 | if (ret < 0) | |
5fff80bb | 933 | goto out_put; |
69425599 DV |
934 | connector->index = ret; |
935 | ret = 0; | |
5fff80bb | 936 | |
f453ba04 DA |
937 | connector->connector_type = connector_type; |
938 | connector->connector_type_id = | |
b21e3afe IM |
939 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
940 | if (connector->connector_type_id < 0) { | |
941 | ret = connector->connector_type_id; | |
5fff80bb | 942 | goto out_put_id; |
b21e3afe | 943 | } |
2abdd313 JN |
944 | connector->name = |
945 | kasprintf(GFP_KERNEL, "%s-%d", | |
946 | drm_connector_enum_list[connector_type].name, | |
947 | connector->connector_type_id); | |
948 | if (!connector->name) { | |
949 | ret = -ENOMEM; | |
5fff80bb | 950 | goto out_put_type_id; |
2abdd313 JN |
951 | } |
952 | ||
f453ba04 DA |
953 | INIT_LIST_HEAD(&connector->probed_modes); |
954 | INIT_LIST_HEAD(&connector->modes); | |
955 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 956 | connector->status = connector_status_unknown; |
f453ba04 | 957 | |
eaf99c74 CW |
958 | drm_connector_get_cmdline_mode(connector); |
959 | ||
c7eb76f4 DV |
960 | /* We should add connectors at the end to avoid upsetting the connector |
961 | * index too much. */ | |
ae16c597 RC |
962 | list_add_tail(&connector->head, &config->connector_list); |
963 | config->num_connector++; | |
f453ba04 | 964 | |
a7331e5c | 965 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 966 | drm_object_attach_property(&connector->base, |
ae16c597 | 967 | config->edid_property, |
a7331e5c | 968 | 0); |
f453ba04 | 969 | |
58495563 | 970 | drm_object_attach_property(&connector->base, |
ae16c597 RC |
971 | config->dpms_property, 0); |
972 | ||
973 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
974 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
975 | } | |
f453ba04 | 976 | |
30f65707 | 977 | connector->debugfs_entry = NULL; |
5fff80bb ML |
978 | out_put_type_id: |
979 | if (ret) | |
980 | ida_remove(connector_ida, connector->connector_type_id); | |
981 | out_put_id: | |
982 | if (ret) | |
69425599 | 983 | ida_remove(&config->connector_ida, connector->index); |
2abdd313 JN |
984 | out_put: |
985 | if (ret) | |
7c8f6d25 | 986 | drm_mode_object_unregister(dev, &connector->base); |
2abdd313 JN |
987 | |
988 | out_unlock: | |
84849903 | 989 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
990 | |
991 | return ret; | |
f453ba04 DA |
992 | } |
993 | EXPORT_SYMBOL(drm_connector_init); | |
994 | ||
995 | /** | |
996 | * drm_connector_cleanup - cleans up an initialised connector | |
997 | * @connector: connector to cleanup | |
998 | * | |
f453ba04 DA |
999 | * Cleans up the connector but doesn't free the object. |
1000 | */ | |
1001 | void drm_connector_cleanup(struct drm_connector *connector) | |
1002 | { | |
1003 | struct drm_device *dev = connector->dev; | |
1004 | struct drm_display_mode *mode, *t; | |
1005 | ||
80de3461 CW |
1006 | /* The connector should have been removed from userspace long before |
1007 | * it is finally destroyed. | |
1008 | */ | |
1009 | if (WARN_ON(connector->registered)) | |
1010 | drm_connector_unregister(connector); | |
1011 | ||
40d9b043 DA |
1012 | if (connector->tile_group) { |
1013 | drm_mode_put_tile_group(dev, connector->tile_group); | |
1014 | connector->tile_group = NULL; | |
1015 | } | |
1016 | ||
f453ba04 DA |
1017 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
1018 | drm_mode_remove(connector, mode); | |
1019 | ||
1020 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
1021 | drm_mode_remove(connector, mode); | |
1022 | ||
b21e3afe IM |
1023 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
1024 | connector->connector_type_id); | |
1025 | ||
5fff80bb | 1026 | ida_remove(&dev->mode_config.connector_ida, |
69425599 | 1027 | connector->index); |
5fff80bb | 1028 | |
b5571e9d | 1029 | kfree(connector->display_info.bus_formats); |
7c8f6d25 | 1030 | drm_mode_object_unregister(dev, &connector->base); |
2abdd313 JN |
1031 | kfree(connector->name); |
1032 | connector->name = NULL; | |
f453ba04 | 1033 | list_del(&connector->head); |
6380c509 | 1034 | dev->mode_config.num_connector--; |
3009c037 TR |
1035 | |
1036 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
1037 | if (connector->state && connector->funcs->atomic_destroy_state) | |
1038 | connector->funcs->atomic_destroy_state(connector, | |
1039 | connector->state); | |
a18c0af1 TR |
1040 | |
1041 | memset(connector, 0, sizeof(*connector)); | |
f453ba04 DA |
1042 | } |
1043 | EXPORT_SYMBOL(drm_connector_cleanup); | |
1044 | ||
34ea3d38 TW |
1045 | /** |
1046 | * drm_connector_register - register a connector | |
1047 | * @connector: the connector to register | |
1048 | * | |
1049 | * Register userspace interfaces for a connector | |
1050 | * | |
1051 | * Returns: | |
1052 | * Zero on success, error code on failure. | |
1053 | */ | |
1054 | int drm_connector_register(struct drm_connector *connector) | |
1055 | { | |
30f65707 TW |
1056 | int ret; |
1057 | ||
40daac61 CW |
1058 | if (connector->registered) |
1059 | return 0; | |
1060 | ||
30f65707 TW |
1061 | ret = drm_sysfs_connector_add(connector); |
1062 | if (ret) | |
1063 | return ret; | |
1064 | ||
1065 | ret = drm_debugfs_connector_add(connector); | |
1066 | if (ret) { | |
aaf285e2 CW |
1067 | goto err_sysfs; |
1068 | } | |
1069 | ||
1070 | if (connector->funcs->late_register) { | |
1071 | ret = connector->funcs->late_register(connector); | |
1072 | if (ret) | |
1073 | goto err_debugfs; | |
30f65707 TW |
1074 | } |
1075 | ||
fdf2c85f DV |
1076 | drm_mode_object_register(connector->dev, &connector->base); |
1077 | ||
40daac61 | 1078 | connector->registered = true; |
30f65707 | 1079 | return 0; |
aaf285e2 CW |
1080 | |
1081 | err_debugfs: | |
1082 | drm_debugfs_connector_remove(connector); | |
1083 | err_sysfs: | |
1084 | drm_sysfs_connector_remove(connector); | |
1085 | return ret; | |
34ea3d38 TW |
1086 | } |
1087 | EXPORT_SYMBOL(drm_connector_register); | |
1088 | ||
1089 | /** | |
1090 | * drm_connector_unregister - unregister a connector | |
1091 | * @connector: the connector to unregister | |
1092 | * | |
1093 | * Unregister userspace interfaces for a connector | |
1094 | */ | |
1095 | void drm_connector_unregister(struct drm_connector *connector) | |
1096 | { | |
40daac61 CW |
1097 | if (!connector->registered) |
1098 | return; | |
1099 | ||
aaf285e2 CW |
1100 | if (connector->funcs->early_unregister) |
1101 | connector->funcs->early_unregister(connector); | |
1102 | ||
34ea3d38 | 1103 | drm_sysfs_connector_remove(connector); |
30f65707 | 1104 | drm_debugfs_connector_remove(connector); |
40daac61 CW |
1105 | |
1106 | connector->registered = false; | |
34ea3d38 TW |
1107 | } |
1108 | EXPORT_SYMBOL(drm_connector_unregister); | |
1109 | ||
6100598c CW |
1110 | static void drm_connector_unregister_all(struct drm_device *dev) |
1111 | { | |
1112 | struct drm_connector *connector; | |
1113 | ||
1114 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ | |
1115 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1116 | drm_connector_unregister(connector); | |
1117 | } | |
1118 | ||
041401ff | 1119 | static int drm_connector_register_all(struct drm_device *dev) |
54d2c2da AB |
1120 | { |
1121 | struct drm_connector *connector; | |
1122 | int ret; | |
1123 | ||
5c6c201c DV |
1124 | /* FIXME: taking the mode config mutex ends up in a clash with |
1125 | * fbcon/backlight registration */ | |
1126 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
54d2c2da AB |
1127 | ret = drm_connector_register(connector); |
1128 | if (ret) | |
1129 | goto err; | |
1130 | } | |
1131 | ||
54d2c2da AB |
1132 | return 0; |
1133 | ||
1134 | err: | |
1135 | mutex_unlock(&dev->mode_config.mutex); | |
1136 | drm_connector_unregister_all(dev); | |
1137 | return ret; | |
1138 | } | |
54d2c2da | 1139 | |
79190ea2 BG |
1140 | static int drm_encoder_register_all(struct drm_device *dev) |
1141 | { | |
1142 | struct drm_encoder *encoder; | |
1143 | int ret = 0; | |
1144 | ||
1145 | drm_for_each_encoder(encoder, dev) { | |
1146 | if (encoder->funcs->late_register) | |
1147 | ret = encoder->funcs->late_register(encoder); | |
1148 | if (ret) | |
1149 | return ret; | |
1150 | } | |
1151 | ||
1152 | return 0; | |
1153 | } | |
1154 | ||
1155 | static void drm_encoder_unregister_all(struct drm_device *dev) | |
1156 | { | |
1157 | struct drm_encoder *encoder; | |
1158 | ||
1159 | drm_for_each_encoder(encoder, dev) { | |
1160 | if (encoder->funcs->early_unregister) | |
1161 | encoder->funcs->early_unregister(encoder); | |
1162 | } | |
1163 | } | |
1164 | ||
c8e32cc1 DV |
1165 | /** |
1166 | * drm_encoder_init - Init a preallocated encoder | |
1167 | * @dev: drm device | |
1168 | * @encoder: the encoder to init | |
1169 | * @funcs: callbacks for this encoder | |
1170 | * @encoder_type: user visible type of the encoder | |
13a3d91f | 1171 | * @name: printf style format string for the encoder name, or NULL for default name |
c8e32cc1 DV |
1172 | * |
1173 | * Initialises a preallocated encoder. Encoder should be | |
1174 | * subclassed as part of driver encoder objects. | |
1175 | * | |
1176 | * Returns: | |
1177 | * Zero on success, error code on failure. | |
1178 | */ | |
6bfc56aa | 1179 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1180 | struct drm_encoder *encoder, |
1181 | const struct drm_encoder_funcs *funcs, | |
13a3d91f | 1182 | int encoder_type, const char *name, ...) |
f453ba04 | 1183 | { |
6bfc56aa VS |
1184 | int ret; |
1185 | ||
84849903 | 1186 | drm_modeset_lock_all(dev); |
f453ba04 | 1187 | |
6bfc56aa VS |
1188 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1189 | if (ret) | |
e5748946 | 1190 | goto out_unlock; |
f453ba04 | 1191 | |
6bfc56aa | 1192 | encoder->dev = dev; |
f453ba04 DA |
1193 | encoder->encoder_type = encoder_type; |
1194 | encoder->funcs = funcs; | |
86bf546b VS |
1195 | if (name) { |
1196 | va_list ap; | |
1197 | ||
1198 | va_start(ap, name); | |
1199 | encoder->name = kvasprintf(GFP_KERNEL, name, ap); | |
1200 | va_end(ap); | |
1201 | } else { | |
1202 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", | |
1203 | drm_encoder_enum_list[encoder_type].name, | |
1204 | encoder->base.id); | |
1205 | } | |
e5748946 JN |
1206 | if (!encoder->name) { |
1207 | ret = -ENOMEM; | |
1208 | goto out_put; | |
1209 | } | |
f453ba04 DA |
1210 | |
1211 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
490d3d1b | 1212 | encoder->index = dev->mode_config.num_encoder++; |
f453ba04 | 1213 | |
e5748946 JN |
1214 | out_put: |
1215 | if (ret) | |
7c8f6d25 | 1216 | drm_mode_object_unregister(dev, &encoder->base); |
e5748946 JN |
1217 | |
1218 | out_unlock: | |
84849903 | 1219 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1220 | |
1221 | return ret; | |
f453ba04 DA |
1222 | } |
1223 | EXPORT_SYMBOL(drm_encoder_init); | |
1224 | ||
c8e32cc1 DV |
1225 | /** |
1226 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1227 | * @encoder: encoder to cleanup | |
1228 | * | |
1229 | * Cleans up the encoder but doesn't free the object. | |
1230 | */ | |
f453ba04 DA |
1231 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1232 | { | |
1233 | struct drm_device *dev = encoder->dev; | |
4dfd909f | 1234 | |
490d3d1b CW |
1235 | /* Note that the encoder_list is considered to be static; should we |
1236 | * remove the drm_encoder at runtime we would have to decrement all | |
1237 | * the indices on the drm_encoder after us in the encoder_list. | |
1238 | */ | |
1239 | ||
84849903 | 1240 | drm_modeset_lock_all(dev); |
7c8f6d25 | 1241 | drm_mode_object_unregister(dev, &encoder->base); |
e5748946 | 1242 | kfree(encoder->name); |
f453ba04 | 1243 | list_del(&encoder->head); |
6380c509 | 1244 | dev->mode_config.num_encoder--; |
84849903 | 1245 | drm_modeset_unlock_all(dev); |
a18c0af1 TR |
1246 | |
1247 | memset(encoder, 0, sizeof(*encoder)); | |
f453ba04 DA |
1248 | } |
1249 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1250 | ||
9f4c97a2 VS |
1251 | static unsigned int drm_num_planes(struct drm_device *dev) |
1252 | { | |
1253 | unsigned int num = 0; | |
1254 | struct drm_plane *tmp; | |
1255 | ||
1256 | drm_for_each_plane(tmp, dev) { | |
1257 | num++; | |
1258 | } | |
1259 | ||
1260 | return num; | |
1261 | } | |
1262 | ||
35f2c3ae | 1263 | /** |
dc415ff9 | 1264 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1265 | * @dev: DRM device |
1266 | * @plane: plane object to init | |
1267 | * @possible_crtcs: bitmask of possible CRTCs | |
1268 | * @funcs: callbacks for the new plane | |
1269 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1270 | * @format_count: number of elements in @formats | |
dc415ff9 | 1271 | * @type: type of plane (overlay, primary, cursor) |
b0b3b795 | 1272 | * @name: printf style format string for the plane name, or NULL for default name |
35f2c3ae | 1273 | * |
dc415ff9 | 1274 | * Initializes a plane object of type @type. |
35f2c3ae | 1275 | * |
c8e32cc1 | 1276 | * Returns: |
35f2c3ae VS |
1277 | * Zero on success, error code on failure. |
1278 | */ | |
dc415ff9 MR |
1279 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1280 | unsigned long possible_crtcs, | |
1281 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1282 | const uint32_t *formats, unsigned int format_count, |
b0b3b795 VS |
1283 | enum drm_plane_type type, |
1284 | const char *name, ...) | |
8cf5c917 | 1285 | { |
6b4959f4 | 1286 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
1287 | int ret; |
1288 | ||
6bfc56aa VS |
1289 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1290 | if (ret) | |
baf698b0 | 1291 | return ret; |
6bfc56aa | 1292 | |
4d02e2de DV |
1293 | drm_modeset_lock_init(&plane->mutex); |
1294 | ||
4d93914a | 1295 | plane->base.properties = &plane->properties; |
8cf5c917 | 1296 | plane->dev = dev; |
8cf5c917 | 1297 | plane->funcs = funcs; |
2f6c5389 TR |
1298 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
1299 | GFP_KERNEL); | |
8cf5c917 JB |
1300 | if (!plane->format_types) { |
1301 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
7c8f6d25 | 1302 | drm_mode_object_unregister(dev, &plane->base); |
baf698b0 | 1303 | return -ENOMEM; |
8cf5c917 JB |
1304 | } |
1305 | ||
9f4c97a2 VS |
1306 | if (name) { |
1307 | va_list ap; | |
1308 | ||
1309 | va_start(ap, name); | |
1310 | plane->name = kvasprintf(GFP_KERNEL, name, ap); | |
1311 | va_end(ap); | |
1312 | } else { | |
1313 | plane->name = kasprintf(GFP_KERNEL, "plane-%d", | |
1314 | drm_num_planes(dev)); | |
1315 | } | |
1316 | if (!plane->name) { | |
1317 | kfree(plane->format_types); | |
7c8f6d25 | 1318 | drm_mode_object_unregister(dev, &plane->base); |
9f4c97a2 VS |
1319 | return -ENOMEM; |
1320 | } | |
1321 | ||
308e5bcb | 1322 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1323 | plane->format_count = format_count; |
1324 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1325 | plane->type = type; |
8cf5c917 | 1326 | |
6b4959f4 | 1327 | list_add_tail(&plane->head, &config->plane_list); |
490d3d1b | 1328 | plane->index = config->num_total_plane++; |
dc415ff9 | 1329 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
6b4959f4 | 1330 | config->num_overlay_plane++; |
8cf5c917 | 1331 | |
9922ab5a | 1332 | drm_object_attach_property(&plane->base, |
6b4959f4 | 1333 | config->plane_type_property, |
9922ab5a RC |
1334 | plane->type); |
1335 | ||
6b4959f4 RC |
1336 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
1337 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); | |
1338 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); | |
1339 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); | |
1340 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); | |
1341 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); | |
1342 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); | |
1343 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); | |
1344 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); | |
1345 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); | |
1346 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); | |
1347 | } | |
1348 | ||
baf698b0 | 1349 | return 0; |
8cf5c917 | 1350 | } |
dc415ff9 MR |
1351 | EXPORT_SYMBOL(drm_universal_plane_init); |
1352 | ||
79190ea2 BG |
1353 | static int drm_plane_register_all(struct drm_device *dev) |
1354 | { | |
1355 | struct drm_plane *plane; | |
1356 | int ret = 0; | |
1357 | ||
1358 | drm_for_each_plane(plane, dev) { | |
1359 | if (plane->funcs->late_register) | |
1360 | ret = plane->funcs->late_register(plane); | |
1361 | if (ret) | |
1362 | return ret; | |
1363 | } | |
1364 | ||
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | static void drm_plane_unregister_all(struct drm_device *dev) | |
1369 | { | |
1370 | struct drm_plane *plane; | |
1371 | ||
1372 | drm_for_each_plane(plane, dev) { | |
1373 | if (plane->funcs->early_unregister) | |
1374 | plane->funcs->early_unregister(plane); | |
1375 | } | |
1376 | } | |
1377 | ||
dc415ff9 MR |
1378 | /** |
1379 | * drm_plane_init - Initialize a legacy plane | |
1380 | * @dev: DRM device | |
1381 | * @plane: plane object to init | |
1382 | * @possible_crtcs: bitmask of possible CRTCs | |
1383 | * @funcs: callbacks for the new plane | |
1384 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1385 | * @format_count: number of elements in @formats | |
1386 | * @is_primary: plane type (primary vs overlay) | |
1387 | * | |
1388 | * Legacy API to initialize a DRM plane. | |
1389 | * | |
1390 | * New drivers should call drm_universal_plane_init() instead. | |
1391 | * | |
1392 | * Returns: | |
1393 | * Zero on success, error code on failure. | |
1394 | */ | |
1395 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1396 | unsigned long possible_crtcs, | |
1397 | const struct drm_plane_funcs *funcs, | |
45e3743a | 1398 | const uint32_t *formats, unsigned int format_count, |
dc415ff9 MR |
1399 | bool is_primary) |
1400 | { | |
1401 | enum drm_plane_type type; | |
1402 | ||
1403 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1404 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
b0b3b795 | 1405 | formats, format_count, type, NULL); |
dc415ff9 | 1406 | } |
8cf5c917 JB |
1407 | EXPORT_SYMBOL(drm_plane_init); |
1408 | ||
35f2c3ae VS |
1409 | /** |
1410 | * drm_plane_cleanup - Clean up the core plane usage | |
1411 | * @plane: plane to cleanup | |
1412 | * | |
1413 | * This function cleans up @plane and removes it from the DRM mode setting | |
1414 | * core. Note that the function does *not* free the plane structure itself, | |
1415 | * this is the responsibility of the caller. | |
1416 | */ | |
8cf5c917 JB |
1417 | void drm_plane_cleanup(struct drm_plane *plane) |
1418 | { | |
1419 | struct drm_device *dev = plane->dev; | |
1420 | ||
84849903 | 1421 | drm_modeset_lock_all(dev); |
8cf5c917 | 1422 | kfree(plane->format_types); |
7c8f6d25 | 1423 | drm_mode_object_unregister(dev, &plane->base); |
dc415ff9 MR |
1424 | |
1425 | BUG_ON(list_empty(&plane->head)); | |
1426 | ||
490d3d1b CW |
1427 | /* Note that the plane_list is considered to be static; should we |
1428 | * remove the drm_plane at runtime we would have to decrement all | |
1429 | * the indices on the drm_plane after us in the plane_list. | |
1430 | */ | |
1431 | ||
dc415ff9 MR |
1432 | list_del(&plane->head); |
1433 | dev->mode_config.num_total_plane--; | |
1434 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1435 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1436 | drm_modeset_unlock_all(dev); |
3009c037 TR |
1437 | |
1438 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); | |
1439 | if (plane->state && plane->funcs->atomic_destroy_state) | |
1440 | plane->funcs->atomic_destroy_state(plane, plane->state); | |
a18c0af1 | 1441 | |
9f4c97a2 VS |
1442 | kfree(plane->name); |
1443 | ||
a18c0af1 | 1444 | memset(plane, 0, sizeof(*plane)); |
8cf5c917 JB |
1445 | } |
1446 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1447 | ||
f81338a5 CK |
1448 | /** |
1449 | * drm_plane_from_index - find the registered plane at an index | |
1450 | * @dev: DRM device | |
1451 | * @idx: index of registered plane to find for | |
1452 | * | |
1453 | * Given a plane index, return the registered plane from DRM device's | |
1454 | * list of planes with matching index. | |
1455 | */ | |
1456 | struct drm_plane * | |
1457 | drm_plane_from_index(struct drm_device *dev, int idx) | |
1458 | { | |
1459 | struct drm_plane *plane; | |
f81338a5 | 1460 | |
490d3d1b CW |
1461 | drm_for_each_plane(plane, dev) |
1462 | if (idx == plane->index) | |
f81338a5 | 1463 | return plane; |
490d3d1b | 1464 | |
f81338a5 CK |
1465 | return NULL; |
1466 | } | |
1467 | EXPORT_SYMBOL(drm_plane_from_index); | |
1468 | ||
35f2c3ae VS |
1469 | /** |
1470 | * drm_plane_force_disable - Forcibly disable a plane | |
1471 | * @plane: plane to disable | |
1472 | * | |
1473 | * Forces the plane to be disabled. | |
1474 | * | |
1475 | * Used when the plane's current framebuffer is destroyed, | |
1476 | * and when restoring fbdev mode. | |
1477 | */ | |
9125e618 VS |
1478 | void drm_plane_force_disable(struct drm_plane *plane) |
1479 | { | |
1480 | int ret; | |
1481 | ||
3d30a59b | 1482 | if (!plane->fb) |
9125e618 VS |
1483 | return; |
1484 | ||
3d30a59b | 1485 | plane->old_fb = plane->fb; |
9125e618 | 1486 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1487 | if (ret) { |
9125e618 | 1488 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1489 | plane->old_fb = NULL; |
731cce48 DV |
1490 | return; |
1491 | } | |
9125e618 | 1492 | /* disconnect the plane from the fb and crtc: */ |
220dd2bc | 1493 | drm_framebuffer_unreference(plane->old_fb); |
3d30a59b | 1494 | plane->old_fb = NULL; |
9125e618 VS |
1495 | plane->fb = NULL; |
1496 | plane->crtc = NULL; | |
1497 | } | |
1498 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1499 | ||
79190ea2 BG |
1500 | int drm_modeset_register_all(struct drm_device *dev) |
1501 | { | |
1502 | int ret; | |
1503 | ||
1504 | ret = drm_plane_register_all(dev); | |
1505 | if (ret) | |
1506 | goto err_plane; | |
1507 | ||
1508 | ret = drm_crtc_register_all(dev); | |
1509 | if (ret) | |
1510 | goto err_crtc; | |
1511 | ||
1512 | ret = drm_encoder_register_all(dev); | |
1513 | if (ret) | |
1514 | goto err_encoder; | |
1515 | ||
1516 | ret = drm_connector_register_all(dev); | |
1517 | if (ret) | |
1518 | goto err_connector; | |
1519 | ||
1520 | return 0; | |
1521 | ||
1522 | err_connector: | |
1523 | drm_encoder_unregister_all(dev); | |
1524 | err_encoder: | |
1525 | drm_crtc_unregister_all(dev); | |
1526 | err_crtc: | |
1527 | drm_plane_unregister_all(dev); | |
1528 | err_plane: | |
1529 | return ret; | |
1530 | } | |
1531 | ||
1532 | void drm_modeset_unregister_all(struct drm_device *dev) | |
1533 | { | |
1534 | drm_connector_unregister_all(dev); | |
1535 | drm_encoder_unregister_all(dev); | |
1536 | drm_crtc_unregister_all(dev); | |
1537 | drm_plane_unregister_all(dev); | |
1538 | } | |
1539 | ||
6b4959f4 | 1540 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
f453ba04 | 1541 | { |
356af0e1 | 1542 | struct drm_property *prop; |
f453ba04 DA |
1543 | |
1544 | /* | |
1545 | * Standard properties (apply to all connectors) | |
1546 | */ | |
356af0e1 | 1547 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
f453ba04 DA |
1548 | DRM_MODE_PROP_IMMUTABLE, |
1549 | "EDID", 0); | |
356af0e1 RC |
1550 | if (!prop) |
1551 | return -ENOMEM; | |
1552 | dev->mode_config.edid_property = prop; | |
f453ba04 | 1553 | |
356af0e1 | 1554 | prop = drm_property_create_enum(dev, 0, |
4a67d391 SH |
1555 | "DPMS", drm_dpms_enum_list, |
1556 | ARRAY_SIZE(drm_dpms_enum_list)); | |
356af0e1 RC |
1557 | if (!prop) |
1558 | return -ENOMEM; | |
1559 | dev->mode_config.dpms_property = prop; | |
6f134d7b | 1560 | |
356af0e1 RC |
1561 | prop = drm_property_create(dev, |
1562 | DRM_MODE_PROP_BLOB | | |
1563 | DRM_MODE_PROP_IMMUTABLE, | |
1564 | "PATH", 0); | |
1565 | if (!prop) | |
1566 | return -ENOMEM; | |
1567 | dev->mode_config.path_property = prop; | |
f453ba04 | 1568 | |
356af0e1 RC |
1569 | prop = drm_property_create(dev, |
1570 | DRM_MODE_PROP_BLOB | | |
1571 | DRM_MODE_PROP_IMMUTABLE, | |
1572 | "TILE", 0); | |
1573 | if (!prop) | |
1574 | return -ENOMEM; | |
1575 | dev->mode_config.tile_property = prop; | |
9922ab5a | 1576 | |
6b4959f4 | 1577 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
9922ab5a RC |
1578 | "type", drm_plane_type_enum_list, |
1579 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
6b4959f4 RC |
1580 | if (!prop) |
1581 | return -ENOMEM; | |
1582 | dev->mode_config.plane_type_property = prop; | |
1583 | ||
1584 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1585 | "SRC_X", 0, UINT_MAX); | |
1586 | if (!prop) | |
1587 | return -ENOMEM; | |
1588 | dev->mode_config.prop_src_x = prop; | |
1589 | ||
1590 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1591 | "SRC_Y", 0, UINT_MAX); | |
1592 | if (!prop) | |
1593 | return -ENOMEM; | |
1594 | dev->mode_config.prop_src_y = prop; | |
1595 | ||
1596 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1597 | "SRC_W", 0, UINT_MAX); | |
1598 | if (!prop) | |
1599 | return -ENOMEM; | |
1600 | dev->mode_config.prop_src_w = prop; | |
1601 | ||
1602 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1603 | "SRC_H", 0, UINT_MAX); | |
1604 | if (!prop) | |
1605 | return -ENOMEM; | |
1606 | dev->mode_config.prop_src_h = prop; | |
1607 | ||
1608 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1609 | "CRTC_X", INT_MIN, INT_MAX); | |
1610 | if (!prop) | |
1611 | return -ENOMEM; | |
1612 | dev->mode_config.prop_crtc_x = prop; | |
1613 | ||
1614 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, | |
1615 | "CRTC_Y", INT_MIN, INT_MAX); | |
1616 | if (!prop) | |
1617 | return -ENOMEM; | |
1618 | dev->mode_config.prop_crtc_y = prop; | |
1619 | ||
1620 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1621 | "CRTC_W", 0, INT_MAX); | |
1622 | if (!prop) | |
1623 | return -ENOMEM; | |
1624 | dev->mode_config.prop_crtc_w = prop; | |
1625 | ||
1626 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, | |
1627 | "CRTC_H", 0, INT_MAX); | |
1628 | if (!prop) | |
1629 | return -ENOMEM; | |
1630 | dev->mode_config.prop_crtc_h = prop; | |
1631 | ||
1632 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1633 | "FB_ID", DRM_MODE_OBJECT_FB); | |
1634 | if (!prop) | |
1635 | return -ENOMEM; | |
1636 | dev->mode_config.prop_fb_id = prop; | |
1637 | ||
1638 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, | |
1639 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); | |
1640 | if (!prop) | |
1641 | return -ENOMEM; | |
1642 | dev->mode_config.prop_crtc_id = prop; | |
9922ab5a | 1643 | |
eab3bbef DV |
1644 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
1645 | "ACTIVE"); | |
1646 | if (!prop) | |
1647 | return -ENOMEM; | |
1648 | dev->mode_config.prop_active = prop; | |
1649 | ||
955f3c33 DS |
1650 | prop = drm_property_create(dev, |
1651 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, | |
1652 | "MODE_ID", 0); | |
1653 | if (!prop) | |
1654 | return -ENOMEM; | |
1655 | dev->mode_config.prop_mode_id = prop; | |
1656 | ||
5488dc16 LL |
1657 | prop = drm_property_create(dev, |
1658 | DRM_MODE_PROP_BLOB, | |
1659 | "DEGAMMA_LUT", 0); | |
1660 | if (!prop) | |
1661 | return -ENOMEM; | |
1662 | dev->mode_config.degamma_lut_property = prop; | |
1663 | ||
1664 | prop = drm_property_create_range(dev, | |
1665 | DRM_MODE_PROP_IMMUTABLE, | |
1666 | "DEGAMMA_LUT_SIZE", 0, UINT_MAX); | |
1667 | if (!prop) | |
1668 | return -ENOMEM; | |
1669 | dev->mode_config.degamma_lut_size_property = prop; | |
1670 | ||
1671 | prop = drm_property_create(dev, | |
1672 | DRM_MODE_PROP_BLOB, | |
1673 | "CTM", 0); | |
1674 | if (!prop) | |
1675 | return -ENOMEM; | |
1676 | dev->mode_config.ctm_property = prop; | |
1677 | ||
1678 | prop = drm_property_create(dev, | |
1679 | DRM_MODE_PROP_BLOB, | |
1680 | "GAMMA_LUT", 0); | |
1681 | if (!prop) | |
1682 | return -ENOMEM; | |
1683 | dev->mode_config.gamma_lut_property = prop; | |
1684 | ||
1685 | prop = drm_property_create_range(dev, | |
1686 | DRM_MODE_PROP_IMMUTABLE, | |
1687 | "GAMMA_LUT_SIZE", 0, UINT_MAX); | |
1688 | if (!prop) | |
1689 | return -ENOMEM; | |
1690 | dev->mode_config.gamma_lut_size_property = prop; | |
1691 | ||
9922ab5a RC |
1692 | return 0; |
1693 | } | |
1694 | ||
f453ba04 DA |
1695 | /** |
1696 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1697 | * @dev: DRM device | |
1698 | * | |
1699 | * Called by a driver the first time a DVI-I connector is made. | |
1700 | */ | |
1701 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1702 | { | |
1703 | struct drm_property *dvi_i_selector; | |
1704 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1705 | |
1706 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1707 | return 0; | |
1708 | ||
1709 | dvi_i_selector = | |
4a67d391 | 1710 | drm_property_create_enum(dev, 0, |
f453ba04 | 1711 | "select subconnector", |
4a67d391 | 1712 | drm_dvi_i_select_enum_list, |
f453ba04 | 1713 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1714 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1715 | ||
4a67d391 | 1716 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1717 | "subconnector", |
4a67d391 | 1718 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1719 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1720 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1721 | ||
1722 | return 0; | |
1723 | } | |
1724 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1725 | ||
1726 | /** | |
1727 | * drm_create_tv_properties - create TV specific connector properties | |
1728 | * @dev: DRM device | |
1729 | * @num_modes: number of different TV formats (modes) supported | |
1730 | * @modes: array of pointers to strings containing name of each format | |
1731 | * | |
1732 | * Called by a driver's TV initialization routine, this function creates | |
1733 | * the TV specific connector properties for a given device. Caller is | |
1734 | * responsible for allocating a list of format names and passing them to | |
1735 | * this routine. | |
1736 | */ | |
2f763312 TR |
1737 | int drm_mode_create_tv_properties(struct drm_device *dev, |
1738 | unsigned int num_modes, | |
b7c914b3 | 1739 | const char * const modes[]) |
f453ba04 DA |
1740 | { |
1741 | struct drm_property *tv_selector; | |
1742 | struct drm_property *tv_subconnector; | |
2f763312 | 1743 | unsigned int i; |
f453ba04 DA |
1744 | |
1745 | if (dev->mode_config.tv_select_subconnector_property) | |
1746 | return 0; | |
1747 | ||
1748 | /* | |
1749 | * Basic connector properties | |
1750 | */ | |
4a67d391 | 1751 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1752 | "select subconnector", |
4a67d391 | 1753 | drm_tv_select_enum_list, |
f453ba04 | 1754 | ARRAY_SIZE(drm_tv_select_enum_list)); |
48aa1e74 IY |
1755 | if (!tv_selector) |
1756 | goto nomem; | |
1757 | ||
f453ba04 DA |
1758 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1759 | ||
1760 | tv_subconnector = | |
4a67d391 SH |
1761 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1762 | "subconnector", | |
1763 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1764 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
48aa1e74 IY |
1765 | if (!tv_subconnector) |
1766 | goto nomem; | |
f453ba04 DA |
1767 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1768 | ||
1769 | /* | |
1770 | * Other, TV specific properties: margins & TV modes. | |
1771 | */ | |
1772 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1773 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
48aa1e74 IY |
1774 | if (!dev->mode_config.tv_left_margin_property) |
1775 | goto nomem; | |
f453ba04 DA |
1776 | |
1777 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1778 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
48aa1e74 IY |
1779 | if (!dev->mode_config.tv_right_margin_property) |
1780 | goto nomem; | |
f453ba04 DA |
1781 | |
1782 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1783 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
48aa1e74 IY |
1784 | if (!dev->mode_config.tv_top_margin_property) |
1785 | goto nomem; | |
f453ba04 DA |
1786 | |
1787 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1788 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
48aa1e74 IY |
1789 | if (!dev->mode_config.tv_bottom_margin_property) |
1790 | goto nomem; | |
f453ba04 DA |
1791 | |
1792 | dev->mode_config.tv_mode_property = | |
1793 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1794 | "mode", num_modes); | |
48aa1e74 IY |
1795 | if (!dev->mode_config.tv_mode_property) |
1796 | goto nomem; | |
1797 | ||
f453ba04 DA |
1798 | for (i = 0; i < num_modes; i++) |
1799 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1800 | i, modes[i]); | |
1801 | ||
b6b7902e | 1802 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1803 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
48aa1e74 IY |
1804 | if (!dev->mode_config.tv_brightness_property) |
1805 | goto nomem; | |
b6b7902e FJ |
1806 | |
1807 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1808 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
48aa1e74 IY |
1809 | if (!dev->mode_config.tv_contrast_property) |
1810 | goto nomem; | |
b6b7902e FJ |
1811 | |
1812 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1813 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
48aa1e74 IY |
1814 | if (!dev->mode_config.tv_flicker_reduction_property) |
1815 | goto nomem; | |
b6b7902e | 1816 | |
a75f0236 | 1817 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1818 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
48aa1e74 IY |
1819 | if (!dev->mode_config.tv_overscan_property) |
1820 | goto nomem; | |
a75f0236 FJ |
1821 | |
1822 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1823 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
48aa1e74 IY |
1824 | if (!dev->mode_config.tv_saturation_property) |
1825 | goto nomem; | |
a75f0236 FJ |
1826 | |
1827 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1828 | drm_property_create_range(dev, 0, "hue", 0, 100); |
48aa1e74 IY |
1829 | if (!dev->mode_config.tv_hue_property) |
1830 | goto nomem; | |
a75f0236 | 1831 | |
f453ba04 | 1832 | return 0; |
48aa1e74 IY |
1833 | nomem: |
1834 | return -ENOMEM; | |
f453ba04 DA |
1835 | } |
1836 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1837 | ||
1838 | /** | |
1839 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1840 | * @dev: DRM device | |
1841 | * | |
1842 | * Called by a driver the first time it's needed, must be attached to desired | |
1843 | * connectors. | |
1844 | */ | |
1845 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1846 | { | |
1847 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1848 | |
1849 | if (dev->mode_config.scaling_mode_property) | |
1850 | return 0; | |
1851 | ||
1852 | scaling_mode = | |
4a67d391 SH |
1853 | drm_property_create_enum(dev, 0, "scaling mode", |
1854 | drm_scaling_mode_enum_list, | |
f453ba04 | 1855 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1856 | |
1857 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1858 | ||
1859 | return 0; | |
1860 | } | |
1861 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1862 | ||
ff587e45 VK |
1863 | /** |
1864 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1865 | * @dev: DRM device | |
1866 | * | |
1867 | * Called by a driver the first time it's needed, must be attached to desired | |
1868 | * connectors. | |
1869 | * | |
1870 | * Returns: | |
1a498633 | 1871 | * Zero on success, negative errno on failure. |
ff587e45 VK |
1872 | */ |
1873 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1874 | { | |
1875 | if (dev->mode_config.aspect_ratio_property) | |
1876 | return 0; | |
1877 | ||
1878 | dev->mode_config.aspect_ratio_property = | |
1879 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1880 | drm_aspect_ratio_enum_list, | |
1881 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1882 | ||
1883 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1884 | return -ENOMEM; | |
1885 | ||
1886 | return 0; | |
1887 | } | |
1888 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1889 | ||
884840aa JB |
1890 | /** |
1891 | * drm_mode_create_dirty_property - create dirty property | |
1892 | * @dev: DRM device | |
1893 | * | |
1894 | * Called by a driver the first time it's needed, must be attached to desired | |
1895 | * connectors. | |
1896 | */ | |
1897 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1898 | { | |
1899 | struct drm_property *dirty_info; | |
884840aa JB |
1900 | |
1901 | if (dev->mode_config.dirty_info_property) | |
1902 | return 0; | |
1903 | ||
1904 | dirty_info = | |
4a67d391 | 1905 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1906 | "dirty", |
4a67d391 | 1907 | drm_dirty_info_enum_list, |
884840aa | 1908 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1909 | dev->mode_config.dirty_info_property = dirty_info; |
1910 | ||
1911 | return 0; | |
1912 | } | |
1913 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1914 | ||
5bb2bbf5 DA |
1915 | /** |
1916 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
1917 | * @dev: DRM device | |
1918 | * | |
1919 | * Create the the suggested x/y offset property for connectors. | |
1920 | */ | |
1921 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
1922 | { | |
1923 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
1924 | return 0; | |
1925 | ||
1926 | dev->mode_config.suggested_x_property = | |
1927 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
1928 | ||
1929 | dev->mode_config.suggested_y_property = | |
1930 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
1931 | ||
1932 | if (dev->mode_config.suggested_x_property == NULL || | |
1933 | dev->mode_config.suggested_y_property == NULL) | |
1934 | return -ENOMEM; | |
1935 | return 0; | |
1936 | } | |
1937 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
1938 | ||
f453ba04 DA |
1939 | /** |
1940 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1941 | * @dev: drm device for the ioctl |
1942 | * @data: data pointer for the ioctl | |
1943 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1944 | * |
f453ba04 DA |
1945 | * Construct a set of configuration description structures and return |
1946 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1947 | * | |
1948 | * Called by the user via ioctl. | |
1949 | * | |
c8e32cc1 | 1950 | * Returns: |
1a498633 | 1951 | * Zero on success, negative errno on failure. |
f453ba04 DA |
1952 | */ |
1953 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1954 | struct drm_file *file_priv) | |
1955 | { | |
1956 | struct drm_mode_card_res *card_res = data; | |
1957 | struct list_head *lh; | |
1958 | struct drm_framebuffer *fb; | |
1959 | struct drm_connector *connector; | |
1960 | struct drm_crtc *crtc; | |
1961 | struct drm_encoder *encoder; | |
1962 | int ret = 0; | |
1963 | int connector_count = 0; | |
1964 | int crtc_count = 0; | |
1965 | int fb_count = 0; | |
1966 | int encoder_count = 0; | |
9c7060f7 | 1967 | int copied = 0; |
f453ba04 DA |
1968 | uint32_t __user *fb_id; |
1969 | uint32_t __user *crtc_id; | |
1970 | uint32_t __user *connector_id; | |
1971 | uint32_t __user *encoder_id; | |
f453ba04 | 1972 | |
fb3b06c8 DA |
1973 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1974 | return -EINVAL; | |
1975 | ||
f453ba04 | 1976 | |
4b096ac1 | 1977 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1978 | /* |
1979 | * For the non-control nodes we need to limit the list of resources | |
1980 | * by IDs in the group list for this node | |
1981 | */ | |
1982 | list_for_each(lh, &file_priv->fbs) | |
1983 | fb_count++; | |
1984 | ||
4b096ac1 DV |
1985 | /* handle this in 4 parts */ |
1986 | /* FBs */ | |
1987 | if (card_res->count_fbs >= fb_count) { | |
1988 | copied = 0; | |
1989 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1990 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1991 | if (put_user(fb->base.id, fb_id + copied)) { | |
1992 | mutex_unlock(&file_priv->fbs_lock); | |
1993 | return -EFAULT; | |
1994 | } | |
1995 | copied++; | |
1996 | } | |
1997 | } | |
1998 | card_res->count_fbs = fb_count; | |
1999 | mutex_unlock(&file_priv->fbs_lock); | |
2000 | ||
fcf93f69 DV |
2001 | /* mode_config.mutex protects the connector list against e.g. DP MST |
2002 | * connector hot-adding. CRTC/Plane lists are invariant. */ | |
2003 | mutex_lock(&dev->mode_config.mutex); | |
9c7060f7 DV |
2004 | drm_for_each_crtc(crtc, dev) |
2005 | crtc_count++; | |
f453ba04 | 2006 | |
9c7060f7 DV |
2007 | drm_for_each_connector(connector, dev) |
2008 | connector_count++; | |
f453ba04 | 2009 | |
9c7060f7 DV |
2010 | drm_for_each_encoder(encoder, dev) |
2011 | encoder_count++; | |
f453ba04 DA |
2012 | |
2013 | card_res->max_height = dev->mode_config.max_height; | |
2014 | card_res->min_height = dev->mode_config.min_height; | |
2015 | card_res->max_width = dev->mode_config.max_width; | |
2016 | card_res->min_width = dev->mode_config.min_width; | |
2017 | ||
f453ba04 DA |
2018 | /* CRTCs */ |
2019 | if (card_res->count_crtcs >= crtc_count) { | |
2020 | copied = 0; | |
2021 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
9c7060f7 | 2022 | drm_for_each_crtc(crtc, dev) { |
9c7060f7 DV |
2023 | if (put_user(crtc->base.id, crtc_id + copied)) { |
2024 | ret = -EFAULT; | |
2025 | goto out; | |
f453ba04 | 2026 | } |
9c7060f7 | 2027 | copied++; |
f453ba04 DA |
2028 | } |
2029 | } | |
2030 | card_res->count_crtcs = crtc_count; | |
2031 | ||
2032 | /* Encoders */ | |
2033 | if (card_res->count_encoders >= encoder_count) { | |
2034 | copied = 0; | |
2035 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
9c7060f7 | 2036 | drm_for_each_encoder(encoder, dev) { |
9c7060f7 DV |
2037 | if (put_user(encoder->base.id, encoder_id + |
2038 | copied)) { | |
2039 | ret = -EFAULT; | |
2040 | goto out; | |
f453ba04 | 2041 | } |
9c7060f7 | 2042 | copied++; |
f453ba04 DA |
2043 | } |
2044 | } | |
2045 | card_res->count_encoders = encoder_count; | |
2046 | ||
2047 | /* Connectors */ | |
2048 | if (card_res->count_connectors >= connector_count) { | |
2049 | copied = 0; | |
2050 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
9c7060f7 | 2051 | drm_for_each_connector(connector, dev) { |
9c7060f7 DV |
2052 | if (put_user(connector->base.id, |
2053 | connector_id + copied)) { | |
2054 | ret = -EFAULT; | |
2055 | goto out; | |
f453ba04 | 2056 | } |
9c7060f7 | 2057 | copied++; |
f453ba04 DA |
2058 | } |
2059 | } | |
2060 | card_res->count_connectors = connector_count; | |
2061 | ||
f453ba04 | 2062 | out: |
fcf93f69 | 2063 | mutex_unlock(&dev->mode_config.mutex); |
f453ba04 DA |
2064 | return ret; |
2065 | } | |
2066 | ||
2067 | /** | |
2068 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
2069 | * @dev: drm device for the ioctl |
2070 | * @data: data pointer for the ioctl | |
2071 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2072 | * |
f453ba04 DA |
2073 | * Construct a CRTC configuration structure to return to the user. |
2074 | * | |
2075 | * Called by the user via ioctl. | |
2076 | * | |
c8e32cc1 | 2077 | * Returns: |
1a498633 | 2078 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2079 | */ |
2080 | int drm_mode_getcrtc(struct drm_device *dev, | |
2081 | void *data, struct drm_file *file_priv) | |
2082 | { | |
2083 | struct drm_mode_crtc *crtc_resp = data; | |
2084 | struct drm_crtc *crtc; | |
f453ba04 | 2085 | |
fb3b06c8 DA |
2086 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2087 | return -EINVAL; | |
2088 | ||
a2b34e22 | 2089 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
fcf93f69 DV |
2090 | if (!crtc) |
2091 | return -ENOENT; | |
f453ba04 | 2092 | |
fcf93f69 | 2093 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f453ba04 | 2094 | crtc_resp->gamma_size = crtc->gamma_size; |
f4510a27 MR |
2095 | if (crtc->primary->fb) |
2096 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
2097 | else |
2098 | crtc_resp->fb_id = 0; | |
2099 | ||
31c946e8 DV |
2100 | if (crtc->state) { |
2101 | crtc_resp->x = crtc->primary->state->src_x >> 16; | |
2102 | crtc_resp->y = crtc->primary->state->src_y >> 16; | |
2103 | if (crtc->state->enable) { | |
934a8a89 | 2104 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
31c946e8 | 2105 | crtc_resp->mode_valid = 1; |
f453ba04 | 2106 | |
31c946e8 DV |
2107 | } else { |
2108 | crtc_resp->mode_valid = 0; | |
2109 | } | |
f453ba04 | 2110 | } else { |
31c946e8 DV |
2111 | crtc_resp->x = crtc->x; |
2112 | crtc_resp->y = crtc->y; | |
2113 | if (crtc->enabled) { | |
934a8a89 | 2114 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
31c946e8 DV |
2115 | crtc_resp->mode_valid = 1; |
2116 | ||
2117 | } else { | |
2118 | crtc_resp->mode_valid = 0; | |
2119 | } | |
f453ba04 | 2120 | } |
fcf93f69 | 2121 | drm_modeset_unlock_crtc(crtc); |
f453ba04 | 2122 | |
baf698b0 | 2123 | return 0; |
f453ba04 DA |
2124 | } |
2125 | ||
61d8e328 DL |
2126 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
2127 | const struct drm_file *file_priv) | |
2128 | { | |
2129 | /* | |
2130 | * If user-space hasn't configured the driver to expose the stereo 3D | |
2131 | * modes, don't expose them. | |
2132 | */ | |
2133 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
2134 | return false; | |
2135 | ||
2136 | return true; | |
2137 | } | |
2138 | ||
abd69c55 DV |
2139 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
2140 | { | |
2141 | /* For atomic drivers only state objects are synchronously updated and | |
2142 | * protected by modeset locks, so check those first. */ | |
2143 | if (connector->state) | |
2144 | return connector->state->best_encoder; | |
2145 | return connector->encoder; | |
2146 | } | |
2147 | ||
95cbf110 | 2148 | /* helper for getconnector and getproperties ioctls */ |
88a48e29 | 2149 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
95cbf110 RC |
2150 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
2151 | uint32_t *arg_count_props) | |
2152 | { | |
88a48e29 RC |
2153 | int props_count; |
2154 | int i, ret, copied; | |
2155 | ||
2156 | props_count = obj->properties->count; | |
2157 | if (!atomic) | |
2158 | props_count -= obj->properties->atomic_count; | |
95cbf110 RC |
2159 | |
2160 | if ((*arg_count_props >= props_count) && props_count) { | |
88a48e29 | 2161 | for (i = 0, copied = 0; copied < props_count; i++) { |
95cbf110 RC |
2162 | struct drm_property *prop = obj->properties->properties[i]; |
2163 | uint64_t val; | |
2164 | ||
88a48e29 RC |
2165 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
2166 | continue; | |
2167 | ||
95cbf110 RC |
2168 | ret = drm_object_property_get_value(obj, prop, &val); |
2169 | if (ret) | |
2170 | return ret; | |
2171 | ||
2172 | if (put_user(prop->base.id, prop_ptr + copied)) | |
2173 | return -EFAULT; | |
2174 | ||
2175 | if (put_user(val, prop_values + copied)) | |
2176 | return -EFAULT; | |
2177 | ||
2178 | copied++; | |
2179 | } | |
2180 | } | |
2181 | *arg_count_props = props_count; | |
2182 | ||
2183 | return 0; | |
2184 | } | |
2185 | ||
f453ba04 DA |
2186 | /** |
2187 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
2188 | * @dev: drm device for the ioctl |
2189 | * @data: data pointer for the ioctl | |
2190 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2191 | * |
f453ba04 DA |
2192 | * Construct a connector configuration structure to return to the user. |
2193 | * | |
2194 | * Called by the user via ioctl. | |
2195 | * | |
c8e32cc1 | 2196 | * Returns: |
1a498633 | 2197 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2198 | */ |
2199 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
2200 | struct drm_file *file_priv) | |
2201 | { | |
2202 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 | 2203 | struct drm_connector *connector; |
abd69c55 | 2204 | struct drm_encoder *encoder; |
f453ba04 DA |
2205 | struct drm_display_mode *mode; |
2206 | int mode_count = 0; | |
f453ba04 DA |
2207 | int encoders_count = 0; |
2208 | int ret = 0; | |
2209 | int copied = 0; | |
2210 | int i; | |
2211 | struct drm_mode_modeinfo u_mode; | |
2212 | struct drm_mode_modeinfo __user *mode_ptr; | |
f453ba04 DA |
2213 | uint32_t __user *encoder_ptr; |
2214 | ||
fb3b06c8 DA |
2215 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2216 | return -EINVAL; | |
2217 | ||
f453ba04 DA |
2218 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
2219 | ||
7b24056b | 2220 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 2221 | |
b164d31f | 2222 | connector = drm_connector_lookup(dev, out_resp->connector_id); |
a2b34e22 | 2223 | if (!connector) { |
f27657f2 | 2224 | ret = -ENOENT; |
04bdf441 | 2225 | goto out_unlock; |
f453ba04 | 2226 | } |
f453ba04 | 2227 | |
01073b08 TR |
2228 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
2229 | if (connector->encoder_ids[i] != 0) | |
f453ba04 | 2230 | encoders_count++; |
f453ba04 DA |
2231 | |
2232 | if (out_resp->count_modes == 0) { | |
2233 | connector->funcs->fill_modes(connector, | |
2234 | dev->mode_config.max_width, | |
2235 | dev->mode_config.max_height); | |
2236 | } | |
2237 | ||
2238 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2239 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2240 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2241 | mode_count++; | |
f453ba04 DA |
2242 | |
2243 | out_resp->connector_id = connector->base.id; | |
2244 | out_resp->connector_type = connector->connector_type; | |
2245 | out_resp->connector_type_id = connector->connector_type_id; | |
2246 | out_resp->mm_width = connector->display_info.width_mm; | |
2247 | out_resp->mm_height = connector->display_info.height_mm; | |
2248 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2249 | out_resp->connection = connector->status; | |
2caa80e7 DV |
2250 | |
2251 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
abd69c55 DV |
2252 | encoder = drm_connector_get_encoder(connector); |
2253 | if (encoder) | |
2254 | out_resp->encoder_id = encoder->base.id; | |
f453ba04 DA |
2255 | else |
2256 | out_resp->encoder_id = 0; | |
2257 | ||
2258 | /* | |
2259 | * This ioctl is called twice, once to determine how much space is | |
2260 | * needed, and the 2nd time to fill it. | |
2261 | */ | |
2262 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2263 | copied = 0; | |
81f6c7f8 | 2264 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2265 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2266 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2267 | continue; | |
2268 | ||
934a8a89 | 2269 | drm_mode_convert_to_umode(&u_mode, mode); |
f453ba04 DA |
2270 | if (copy_to_user(mode_ptr + copied, |
2271 | &u_mode, sizeof(u_mode))) { | |
2272 | ret = -EFAULT; | |
2273 | goto out; | |
2274 | } | |
2275 | copied++; | |
2276 | } | |
2277 | } | |
2278 | out_resp->count_modes = mode_count; | |
2279 | ||
88a48e29 | 2280 | ret = get_properties(&connector->base, file_priv->atomic, |
95cbf110 RC |
2281 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
2282 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
2283 | &out_resp->count_props); | |
2284 | if (ret) | |
2285 | goto out; | |
f453ba04 DA |
2286 | |
2287 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2288 | copied = 0; | |
81f6c7f8 | 2289 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2290 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2291 | if (connector->encoder_ids[i] != 0) { | |
2292 | if (put_user(connector->encoder_ids[i], | |
2293 | encoder_ptr + copied)) { | |
2294 | ret = -EFAULT; | |
2295 | goto out; | |
2296 | } | |
2297 | copied++; | |
2298 | } | |
2299 | } | |
2300 | } | |
2301 | out_resp->count_encoders = encoders_count; | |
2302 | ||
2303 | out: | |
ccfc0865 | 2304 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
04bdf441 | 2305 | |
b164d31f | 2306 | drm_connector_unreference(connector); |
04bdf441 | 2307 | out_unlock: |
7b24056b DV |
2308 | mutex_unlock(&dev->mode_config.mutex); |
2309 | ||
f453ba04 DA |
2310 | return ret; |
2311 | } | |
2312 | ||
abd69c55 DV |
2313 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
2314 | { | |
2315 | struct drm_connector *connector; | |
2316 | struct drm_device *dev = encoder->dev; | |
2317 | bool uses_atomic = false; | |
2318 | ||
2319 | /* For atomic drivers only state objects are synchronously updated and | |
2320 | * protected by modeset locks, so check those first. */ | |
6295d607 | 2321 | drm_for_each_connector(connector, dev) { |
abd69c55 DV |
2322 | if (!connector->state) |
2323 | continue; | |
2324 | ||
2325 | uses_atomic = true; | |
2326 | ||
2327 | if (connector->state->best_encoder != encoder) | |
2328 | continue; | |
2329 | ||
2330 | return connector->state->crtc; | |
2331 | } | |
2332 | ||
2333 | /* Don't return stale data (e.g. pending async disable). */ | |
2334 | if (uses_atomic) | |
2335 | return NULL; | |
2336 | ||
2337 | return encoder->crtc; | |
2338 | } | |
2339 | ||
c8e32cc1 DV |
2340 | /** |
2341 | * drm_mode_getencoder - get encoder configuration | |
2342 | * @dev: drm device for the ioctl | |
2343 | * @data: data pointer for the ioctl | |
2344 | * @file_priv: drm file for the ioctl call | |
2345 | * | |
2346 | * Construct a encoder configuration structure to return to the user. | |
2347 | * | |
2348 | * Called by the user via ioctl. | |
2349 | * | |
2350 | * Returns: | |
1a498633 | 2351 | * Zero on success, negative errno on failure. |
c8e32cc1 | 2352 | */ |
f453ba04 DA |
2353 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2354 | struct drm_file *file_priv) | |
2355 | { | |
2356 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 | 2357 | struct drm_encoder *encoder; |
abd69c55 | 2358 | struct drm_crtc *crtc; |
f453ba04 | 2359 | |
fb3b06c8 DA |
2360 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2361 | return -EINVAL; | |
2362 | ||
a2b34e22 | 2363 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
fcf93f69 DV |
2364 | if (!encoder) |
2365 | return -ENOENT; | |
f453ba04 | 2366 | |
fcf93f69 | 2367 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
abd69c55 DV |
2368 | crtc = drm_encoder_get_crtc(encoder); |
2369 | if (crtc) | |
2370 | enc_resp->crtc_id = crtc->base.id; | |
f453ba04 DA |
2371 | else |
2372 | enc_resp->crtc_id = 0; | |
fcf93f69 DV |
2373 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
2374 | ||
f453ba04 DA |
2375 | enc_resp->encoder_type = encoder->encoder_type; |
2376 | enc_resp->encoder_id = encoder->base.id; | |
2377 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2378 | enc_resp->possible_clones = encoder->possible_clones; | |
2379 | ||
baf698b0 | 2380 | return 0; |
f453ba04 DA |
2381 | } |
2382 | ||
8cf5c917 | 2383 | /** |
c8e32cc1 | 2384 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2385 | * @dev: DRM device |
2386 | * @data: ioctl data | |
2387 | * @file_priv: DRM file info | |
2388 | * | |
c8e32cc1 DV |
2389 | * Construct a list of plane ids to return to the user. |
2390 | * | |
2391 | * Called by the user via ioctl. | |
2392 | * | |
2393 | * Returns: | |
1a498633 | 2394 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2395 | */ |
2396 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2397 | struct drm_file *file_priv) |
8cf5c917 JB |
2398 | { |
2399 | struct drm_mode_get_plane_res *plane_resp = data; | |
2400 | struct drm_mode_config *config; | |
2401 | struct drm_plane *plane; | |
2402 | uint32_t __user *plane_ptr; | |
fcf93f69 | 2403 | int copied = 0; |
681e7ec7 | 2404 | unsigned num_planes; |
8cf5c917 JB |
2405 | |
2406 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2407 | return -EINVAL; | |
2408 | ||
8cf5c917 JB |
2409 | config = &dev->mode_config; |
2410 | ||
681e7ec7 MR |
2411 | if (file_priv->universal_planes) |
2412 | num_planes = config->num_total_plane; | |
2413 | else | |
2414 | num_planes = config->num_overlay_plane; | |
2415 | ||
8cf5c917 JB |
2416 | /* |
2417 | * This ioctl is called twice, once to determine how much space is | |
2418 | * needed, and the 2nd time to fill it. | |
2419 | */ | |
681e7ec7 MR |
2420 | if (num_planes && |
2421 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2422 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 | 2423 | |
fcf93f69 | 2424 | /* Plane lists are invariant, no locking needed. */ |
e4f62546 | 2425 | drm_for_each_plane(plane, dev) { |
681e7ec7 MR |
2426 | /* |
2427 | * Unless userspace set the 'universal planes' | |
2428 | * capability bit, only advertise overlays. | |
2429 | */ | |
2430 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2431 | !file_priv->universal_planes) | |
e27dde3e MR |
2432 | continue; |
2433 | ||
fcf93f69 DV |
2434 | if (put_user(plane->base.id, plane_ptr + copied)) |
2435 | return -EFAULT; | |
8cf5c917 JB |
2436 | copied++; |
2437 | } | |
2438 | } | |
681e7ec7 | 2439 | plane_resp->count_planes = num_planes; |
8cf5c917 | 2440 | |
fcf93f69 | 2441 | return 0; |
8cf5c917 JB |
2442 | } |
2443 | ||
2444 | /** | |
c8e32cc1 | 2445 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2446 | * @dev: DRM device |
2447 | * @data: ioctl data | |
2448 | * @file_priv: DRM file info | |
2449 | * | |
c8e32cc1 DV |
2450 | * Construct a plane configuration structure to return to the user. |
2451 | * | |
2452 | * Called by the user via ioctl. | |
2453 | * | |
2454 | * Returns: | |
1a498633 | 2455 | * Zero on success, negative errno on failure. |
8cf5c917 JB |
2456 | */ |
2457 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2458 | struct drm_file *file_priv) |
8cf5c917 JB |
2459 | { |
2460 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2461 | struct drm_plane *plane; |
2462 | uint32_t __user *format_ptr; | |
8cf5c917 JB |
2463 | |
2464 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2465 | return -EINVAL; | |
2466 | ||
a2b34e22 | 2467 | plane = drm_plane_find(dev, plane_resp->plane_id); |
fcf93f69 DV |
2468 | if (!plane) |
2469 | return -ENOENT; | |
8cf5c917 | 2470 | |
fcf93f69 | 2471 | drm_modeset_lock(&plane->mutex, NULL); |
8cf5c917 JB |
2472 | if (plane->crtc) |
2473 | plane_resp->crtc_id = plane->crtc->base.id; | |
2474 | else | |
2475 | plane_resp->crtc_id = 0; | |
2476 | ||
2477 | if (plane->fb) | |
2478 | plane_resp->fb_id = plane->fb->base.id; | |
2479 | else | |
2480 | plane_resp->fb_id = 0; | |
fcf93f69 | 2481 | drm_modeset_unlock(&plane->mutex); |
8cf5c917 JB |
2482 | |
2483 | plane_resp->plane_id = plane->base.id; | |
2484 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2485 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2486 | |
2487 | /* | |
2488 | * This ioctl is called twice, once to determine how much space is | |
2489 | * needed, and the 2nd time to fill it. | |
2490 | */ | |
2491 | if (plane->format_count && | |
2492 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2493 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2494 | if (copy_to_user(format_ptr, |
2495 | plane->format_types, | |
2496 | sizeof(uint32_t) * plane->format_count)) { | |
fcf93f69 | 2497 | return -EFAULT; |
8cf5c917 JB |
2498 | } |
2499 | } | |
2500 | plane_resp->count_format_types = plane->format_count; | |
2501 | ||
baf698b0 | 2502 | return 0; |
8cf5c917 JB |
2503 | } |
2504 | ||
ead8610d LP |
2505 | /** |
2506 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format | |
2507 | * @plane: plane to check for format support | |
2508 | * @format: the pixel format | |
2509 | * | |
2510 | * Returns: | |
2511 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL | |
2512 | * otherwise. | |
2513 | */ | |
2514 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) | |
2515 | { | |
2516 | unsigned int i; | |
2517 | ||
2518 | for (i = 0; i < plane->format_count; i++) { | |
2519 | if (format == plane->format_types[i]) | |
2520 | return 0; | |
2521 | } | |
2522 | ||
2523 | return -EINVAL; | |
2524 | } | |
2525 | ||
ce8d9ecc VS |
2526 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
2527 | uint32_t src_w, uint32_t src_h, | |
2528 | const struct drm_framebuffer *fb) | |
2529 | { | |
2530 | unsigned int fb_width, fb_height; | |
2531 | ||
2532 | fb_width = fb->width << 16; | |
2533 | fb_height = fb->height << 16; | |
2534 | ||
2535 | /* Make sure source coordinates are inside the fb. */ | |
2536 | if (src_w > fb_width || | |
2537 | src_x > fb_width - src_w || | |
2538 | src_h > fb_height || | |
2539 | src_y > fb_height - src_h) { | |
2540 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2541 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2542 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, | |
2543 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2544 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2545 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
2546 | return -ENOSPC; | |
2547 | } | |
2548 | ||
2549 | return 0; | |
2550 | } | |
2551 | ||
b36552b3 MR |
2552 | /* |
2553 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2554 | * |
b36552b3 MR |
2555 | * Note that we assume an extra reference has already been taken on fb. If the |
2556 | * update fails, this reference will be dropped before return; if it succeeds, | |
2557 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2558 | * |
b36552b3 | 2559 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2560 | */ |
f2b50c11 DV |
2561 | static int __setplane_internal(struct drm_plane *plane, |
2562 | struct drm_crtc *crtc, | |
2563 | struct drm_framebuffer *fb, | |
2564 | int32_t crtc_x, int32_t crtc_y, | |
2565 | uint32_t crtc_w, uint32_t crtc_h, | |
2566 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2567 | uint32_t src_x, uint32_t src_y, | |
2568 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2569 | { |
8cf5c917 JB |
2570 | int ret = 0; |
2571 | ||
8cf5c917 | 2572 | /* No fb means shut it down */ |
b36552b3 | 2573 | if (!fb) { |
3d30a59b | 2574 | plane->old_fb = plane->fb; |
731cce48 DV |
2575 | ret = plane->funcs->disable_plane(plane); |
2576 | if (!ret) { | |
2577 | plane->crtc = NULL; | |
2578 | plane->fb = NULL; | |
2579 | } else { | |
3d30a59b | 2580 | plane->old_fb = NULL; |
731cce48 | 2581 | } |
8cf5c917 JB |
2582 | goto out; |
2583 | } | |
2584 | ||
7f994f3f MR |
2585 | /* Check whether this plane is usable on this CRTC */ |
2586 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2587 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2588 | ret = -EINVAL; | |
2589 | goto out; | |
2590 | } | |
2591 | ||
62443be6 | 2592 | /* Check whether this plane supports the fb pixel format. */ |
ead8610d LP |
2593 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
2594 | if (ret) { | |
6ba6d03e VS |
2595 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2596 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2597 | goto out; |
2598 | } | |
2599 | ||
3968be94 MR |
2600 | /* Give drivers some help against integer overflows */ |
2601 | if (crtc_w > INT_MAX || | |
2602 | crtc_x > INT_MAX - (int32_t) crtc_w || | |
2603 | crtc_h > INT_MAX || | |
2604 | crtc_y > INT_MAX - (int32_t) crtc_h) { | |
2605 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2606 | crtc_w, crtc_h, crtc_x, crtc_y); | |
c390eed0 VS |
2607 | ret = -ERANGE; |
2608 | goto out; | |
3968be94 MR |
2609 | } |
2610 | ||
ce8d9ecc VS |
2611 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
2612 | if (ret) | |
42ef8789 | 2613 | goto out; |
42ef8789 | 2614 | |
3d30a59b | 2615 | plane->old_fb = plane->fb; |
8cf5c917 | 2616 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2617 | crtc_x, crtc_y, crtc_w, crtc_h, |
2618 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2619 | if (!ret) { |
2620 | plane->crtc = crtc; | |
2621 | plane->fb = fb; | |
35f8badc | 2622 | fb = NULL; |
0fe27f06 | 2623 | } else { |
3d30a59b | 2624 | plane->old_fb = NULL; |
8cf5c917 JB |
2625 | } |
2626 | ||
2627 | out: | |
6c2a7532 DV |
2628 | if (fb) |
2629 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2630 | if (plane->old_fb) |
2631 | drm_framebuffer_unreference(plane->old_fb); | |
2632 | plane->old_fb = NULL; | |
8cf5c917 JB |
2633 | |
2634 | return ret; | |
f2b50c11 | 2635 | } |
b36552b3 | 2636 | |
f2b50c11 DV |
2637 | static int setplane_internal(struct drm_plane *plane, |
2638 | struct drm_crtc *crtc, | |
2639 | struct drm_framebuffer *fb, | |
2640 | int32_t crtc_x, int32_t crtc_y, | |
2641 | uint32_t crtc_w, uint32_t crtc_h, | |
2642 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2643 | uint32_t src_x, uint32_t src_y, | |
2644 | uint32_t src_w, uint32_t src_h) | |
2645 | { | |
2646 | int ret; | |
2647 | ||
2648 | drm_modeset_lock_all(plane->dev); | |
2649 | ret = __setplane_internal(plane, crtc, fb, | |
2650 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2651 | src_x, src_y, src_w, src_h); | |
2652 | drm_modeset_unlock_all(plane->dev); | |
2653 | ||
2654 | return ret; | |
b36552b3 MR |
2655 | } |
2656 | ||
2657 | /** | |
2658 | * drm_mode_setplane - configure a plane's configuration | |
2659 | * @dev: DRM device | |
2660 | * @data: ioctl data* | |
2661 | * @file_priv: DRM file info | |
2662 | * | |
2663 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2664 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2665 | * valid crtc). | |
2666 | * | |
2667 | * Returns: | |
1a498633 | 2668 | * Zero on success, negative errno on failure. |
b36552b3 MR |
2669 | */ |
2670 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2671 | struct drm_file *file_priv) | |
2672 | { | |
2673 | struct drm_mode_set_plane *plane_req = data; | |
b36552b3 MR |
2674 | struct drm_plane *plane; |
2675 | struct drm_crtc *crtc = NULL; | |
2676 | struct drm_framebuffer *fb = NULL; | |
2677 | ||
2678 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2679 | return -EINVAL; | |
2680 | ||
b36552b3 MR |
2681 | /* |
2682 | * First, find the plane, crtc, and fb objects. If not available, | |
2683 | * we don't bother to call the driver. | |
2684 | */ | |
933f622f RC |
2685 | plane = drm_plane_find(dev, plane_req->plane_id); |
2686 | if (!plane) { | |
b36552b3 MR |
2687 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
2688 | plane_req->plane_id); | |
2689 | return -ENOENT; | |
2690 | } | |
b36552b3 MR |
2691 | |
2692 | if (plane_req->fb_id) { | |
2693 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2694 | if (!fb) { | |
2695 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2696 | plane_req->fb_id); | |
2697 | return -ENOENT; | |
2698 | } | |
2699 | ||
933f622f RC |
2700 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
2701 | if (!crtc) { | |
b36552b3 MR |
2702 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
2703 | plane_req->crtc_id); | |
2704 | return -ENOENT; | |
2705 | } | |
b36552b3 MR |
2706 | } |
2707 | ||
161d0dc1 MR |
2708 | /* |
2709 | * setplane_internal will take care of deref'ing either the old or new | |
2710 | * framebuffer depending on success. | |
2711 | */ | |
17cfd91f | 2712 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2713 | plane_req->crtc_x, plane_req->crtc_y, |
2714 | plane_req->crtc_w, plane_req->crtc_h, | |
2715 | plane_req->src_x, plane_req->src_y, | |
2716 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2717 | } |
2718 | ||
2d13b679 DV |
2719 | /** |
2720 | * drm_mode_set_config_internal - helper to call ->set_config | |
2721 | * @set: modeset config to set | |
2722 | * | |
2723 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2724 | * interface. The only thing it adds is correct refcounting dance. | |
4dfd909f | 2725 | * |
c8e32cc1 | 2726 | * Returns: |
1a498633 | 2727 | * Zero on success, negative errno on failure. |
2d13b679 DV |
2728 | */ |
2729 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2730 | { | |
2731 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2732 | struct drm_framebuffer *fb; |
2733 | struct drm_crtc *tmp; | |
b0d12325 DV |
2734 | int ret; |
2735 | ||
5cef29aa DV |
2736 | /* |
2737 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2738 | * connectors from it), hence we need to refcount the fbs across all | |
2739 | * crtcs. Atomic modeset will have saner semantics ... | |
2740 | */ | |
e4f62546 | 2741 | drm_for_each_crtc(tmp, crtc->dev) |
3d30a59b | 2742 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2743 | |
b0d12325 | 2744 | fb = set->fb; |
2d13b679 | 2745 | |
b0d12325 DV |
2746 | ret = crtc->funcs->set_config(set); |
2747 | if (ret == 0) { | |
e13161af | 2748 | crtc->primary->crtc = crtc; |
0fe27f06 | 2749 | crtc->primary->fb = fb; |
5cef29aa | 2750 | } |
cc85e121 | 2751 | |
e4f62546 | 2752 | drm_for_each_crtc(tmp, crtc->dev) { |
f4510a27 MR |
2753 | if (tmp->primary->fb) |
2754 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2755 | if (tmp->primary->old_fb) |
2756 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2757 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2758 | } |
2759 | ||
2760 | return ret; | |
2d13b679 DV |
2761 | } |
2762 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2763 | ||
ecb7e16b GP |
2764 | /** |
2765 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode | |
2766 | * @mode: mode to query | |
2767 | * @hdisplay: hdisplay value to fill in | |
2768 | * @vdisplay: vdisplay value to fill in | |
2769 | * | |
2770 | * The vdisplay value will be doubled if the specified mode is a stereo mode of | |
2771 | * the appropriate layout. | |
2772 | */ | |
2773 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, | |
2774 | int *hdisplay, int *vdisplay) | |
2775 | { | |
2776 | struct drm_display_mode adjusted; | |
2777 | ||
2778 | drm_mode_copy(&adjusted, mode); | |
2779 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); | |
2780 | *hdisplay = adjusted.crtc_hdisplay; | |
2781 | *vdisplay = adjusted.crtc_vdisplay; | |
2782 | } | |
2783 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); | |
2784 | ||
af93629d MR |
2785 | /** |
2786 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2787 | * CRTC viewport | |
2788 | * @crtc: CRTC that framebuffer will be displayed on | |
2789 | * @x: x panning | |
2790 | * @y: y panning | |
2791 | * @mode: mode that framebuffer will be displayed under | |
2792 | * @fb: framebuffer to check size of | |
c11e9283 | 2793 | */ |
af93629d MR |
2794 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2795 | int x, int y, | |
2796 | const struct drm_display_mode *mode, | |
2797 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2798 | |
2799 | { | |
2800 | int hdisplay, vdisplay; | |
2801 | ||
ecb7e16b | 2802 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
a0c1bbb0 | 2803 | |
33e0be63 VS |
2804 | if (crtc->state && |
2805 | crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | | |
2806 | BIT(DRM_ROTATE_270))) | |
c11e9283 DL |
2807 | swap(hdisplay, vdisplay); |
2808 | ||
ce8d9ecc VS |
2809 | return check_src_coords(x << 16, y << 16, |
2810 | hdisplay << 16, vdisplay << 16, fb); | |
c11e9283 | 2811 | } |
af93629d | 2812 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2813 | |
f453ba04 DA |
2814 | /** |
2815 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2816 | * @dev: drm device for the ioctl |
2817 | * @data: data pointer for the ioctl | |
2818 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2819 | * |
f453ba04 DA |
2820 | * Build a new CRTC configuration based on user request. |
2821 | * | |
2822 | * Called by the user via ioctl. | |
2823 | * | |
c8e32cc1 | 2824 | * Returns: |
1a498633 | 2825 | * Zero on success, negative errno on failure. |
f453ba04 DA |
2826 | */ |
2827 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2828 | struct drm_file *file_priv) | |
2829 | { | |
2830 | struct drm_mode_config *config = &dev->mode_config; | |
2831 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2832 | struct drm_crtc *crtc; |
f453ba04 DA |
2833 | struct drm_connector **connector_set = NULL, *connector; |
2834 | struct drm_framebuffer *fb = NULL; | |
2835 | struct drm_display_mode *mode = NULL; | |
2836 | struct drm_mode_set set; | |
2837 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2838 | int ret; |
f453ba04 DA |
2839 | int i; |
2840 | ||
fb3b06c8 DA |
2841 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2842 | return -EINVAL; | |
2843 | ||
01447e9f ZJ |
2844 | /* |
2845 | * Universal plane src offsets are only 16.16, prevent havoc for | |
2846 | * drivers using universal plane code internally. | |
2847 | */ | |
2848 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) | |
1d97e915 VS |
2849 | return -ERANGE; |
2850 | ||
84849903 | 2851 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2852 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2853 | if (!crtc) { | |
58367ed6 | 2854 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2855 | ret = -ENOENT; |
f453ba04 DA |
2856 | goto out; |
2857 | } | |
fa3ab4c2 | 2858 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
f453ba04 DA |
2859 | |
2860 | if (crtc_req->mode_valid) { | |
2861 | /* If we have a mode we need a framebuffer. */ | |
2862 | /* If we pass -1, set the mode with the currently bound fb */ | |
2863 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2864 | if (!crtc->primary->fb) { |
6653cc8d VS |
2865 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2866 | ret = -EINVAL; | |
2867 | goto out; | |
f453ba04 | 2868 | } |
f4510a27 | 2869 | fb = crtc->primary->fb; |
b0d12325 DV |
2870 | /* Make refcounting symmetric with the lookup path. */ |
2871 | drm_framebuffer_reference(fb); | |
f453ba04 | 2872 | } else { |
786b99ed DV |
2873 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2874 | if (!fb) { | |
58367ed6 ZY |
2875 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2876 | crtc_req->fb_id); | |
37c4e705 | 2877 | ret = -ENOENT; |
f453ba04 DA |
2878 | goto out; |
2879 | } | |
f453ba04 DA |
2880 | } |
2881 | ||
2882 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2883 | if (!mode) { |
2884 | ret = -ENOMEM; | |
2885 | goto out; | |
2886 | } | |
2887 | ||
934a8a89 | 2888 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
90367bf6 VS |
2889 | if (ret) { |
2890 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2891 | goto out; | |
2892 | } | |
2893 | ||
7eb5f302 LP |
2894 | /* |
2895 | * Check whether the primary plane supports the fb pixel format. | |
2896 | * Drivers not implementing the universal planes API use a | |
2897 | * default formats list provided by the DRM core which doesn't | |
2898 | * match real hardware capabilities. Skip the check in that | |
2899 | * case. | |
2900 | */ | |
2901 | if (!crtc->primary->format_default) { | |
2902 | ret = drm_plane_check_pixel_format(crtc->primary, | |
2903 | fb->pixel_format); | |
2904 | if (ret) { | |
2905 | DRM_DEBUG_KMS("Invalid pixel format %s\n", | |
2906 | drm_get_format_name(fb->pixel_format)); | |
2907 | goto out; | |
2908 | } | |
2909 | } | |
2910 | ||
c11e9283 DL |
2911 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2912 | mode, fb); | |
2913 | if (ret) | |
5f61bb42 | 2914 | goto out; |
c11e9283 | 2915 | |
f453ba04 DA |
2916 | } |
2917 | ||
2918 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2919 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2920 | ret = -EINVAL; |
2921 | goto out; | |
2922 | } | |
2923 | ||
7781de74 | 2924 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2925 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2926 | crtc_req->count_connectors); |
2927 | ret = -EINVAL; | |
2928 | goto out; | |
2929 | } | |
2930 | ||
2931 | if (crtc_req->count_connectors > 0) { | |
2932 | u32 out_id; | |
2933 | ||
2934 | /* Avoid unbounded kernel memory allocation */ | |
2935 | if (crtc_req->count_connectors > config->num_connector) { | |
2936 | ret = -EINVAL; | |
2937 | goto out; | |
2938 | } | |
2939 | ||
2f6c5389 TR |
2940 | connector_set = kmalloc_array(crtc_req->count_connectors, |
2941 | sizeof(struct drm_connector *), | |
2942 | GFP_KERNEL); | |
f453ba04 DA |
2943 | if (!connector_set) { |
2944 | ret = -ENOMEM; | |
2945 | goto out; | |
2946 | } | |
2947 | ||
2948 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
b164d31f | 2949 | connector_set[i] = NULL; |
81f6c7f8 | 2950 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2951 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2952 | ret = -EFAULT; | |
2953 | goto out; | |
2954 | } | |
2955 | ||
b164d31f | 2956 | connector = drm_connector_lookup(dev, out_id); |
a2b34e22 | 2957 | if (!connector) { |
58367ed6 ZY |
2958 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2959 | out_id); | |
f27657f2 | 2960 | ret = -ENOENT; |
f453ba04 DA |
2961 | goto out; |
2962 | } | |
9440106b JG |
2963 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2964 | connector->base.id, | |
25933820 | 2965 | connector->name); |
f453ba04 DA |
2966 | |
2967 | connector_set[i] = connector; | |
2968 | } | |
2969 | } | |
2970 | ||
2971 | set.crtc = crtc; | |
2972 | set.x = crtc_req->x; | |
2973 | set.y = crtc_req->y; | |
2974 | set.mode = mode; | |
2975 | set.connectors = connector_set; | |
2976 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2977 | set.fb = fb; |
2d13b679 | 2978 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2979 | |
2980 | out: | |
b0d12325 DV |
2981 | if (fb) |
2982 | drm_framebuffer_unreference(fb); | |
2983 | ||
b164d31f DA |
2984 | if (connector_set) { |
2985 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
2986 | if (connector_set[i]) | |
2987 | drm_connector_unreference(connector_set[i]); | |
2988 | } | |
2989 | } | |
f453ba04 | 2990 | kfree(connector_set); |
ee34ab5b | 2991 | drm_mode_destroy(dev, mode); |
84849903 | 2992 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2993 | return ret; |
2994 | } | |
2995 | ||
161d0dc1 MR |
2996 | /** |
2997 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2998 | * universal plane handler call | |
2999 | * @crtc: crtc to update cursor for | |
3000 | * @req: data pointer for the ioctl | |
3001 | * @file_priv: drm file for the ioctl call | |
3002 | * | |
3003 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
3004 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
3005 | * wrap the native buffer handle in a drm_framebuffer. | |
3006 | * | |
3007 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
3008 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
3009 | * directly in cases where the hardware can support other buffer settings and | |
3010 | * userspace wants to make use of these capabilities. | |
3011 | * | |
3012 | * Returns: | |
1a498633 | 3013 | * Zero on success, negative errno on failure. |
161d0dc1 MR |
3014 | */ |
3015 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
3016 | struct drm_mode_cursor2 *req, | |
3017 | struct drm_file *file_priv) | |
3018 | { | |
3019 | struct drm_device *dev = crtc->dev; | |
3020 | struct drm_framebuffer *fb = NULL; | |
3021 | struct drm_mode_fb_cmd2 fbreq = { | |
3022 | .width = req->width, | |
3023 | .height = req->height, | |
3024 | .pixel_format = DRM_FORMAT_ARGB8888, | |
3025 | .pitches = { req->width * 4 }, | |
3026 | .handles = { req->handle }, | |
3027 | }; | |
3028 | int32_t crtc_x, crtc_y; | |
3029 | uint32_t crtc_w = 0, crtc_h = 0; | |
3030 | uint32_t src_w = 0, src_h = 0; | |
3031 | int ret = 0; | |
3032 | ||
3033 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 3034 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
3035 | |
3036 | /* | |
3037 | * Obtain fb we'll be using (either new or existing) and take an extra | |
3038 | * reference to it if fb != null. setplane will take care of dropping | |
3039 | * the reference if the plane update fails. | |
3040 | */ | |
3041 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
3042 | if (req->handle) { | |
9a6f5130 | 3043 | fb = internal_framebuffer_create(dev, &fbreq, file_priv); |
161d0dc1 MR |
3044 | if (IS_ERR(fb)) { |
3045 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
3046 | return PTR_ERR(fb); | |
3047 | } | |
dd546591 GH |
3048 | fb->hot_x = req->hot_x; |
3049 | fb->hot_y = req->hot_y; | |
161d0dc1 MR |
3050 | } else { |
3051 | fb = NULL; | |
3052 | } | |
3053 | } else { | |
161d0dc1 MR |
3054 | fb = crtc->cursor->fb; |
3055 | if (fb) | |
3056 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
3057 | } |
3058 | ||
3059 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3060 | crtc_x = req->x; | |
3061 | crtc_y = req->y; | |
3062 | } else { | |
3063 | crtc_x = crtc->cursor_x; | |
3064 | crtc_y = crtc->cursor_y; | |
3065 | } | |
3066 | ||
3067 | if (fb) { | |
3068 | crtc_w = fb->width; | |
3069 | crtc_h = fb->height; | |
3070 | src_w = fb->width << 16; | |
3071 | src_h = fb->height << 16; | |
3072 | } | |
3073 | ||
3074 | /* | |
3075 | * setplane_internal will take care of deref'ing either the old or new | |
3076 | * framebuffer depending on success. | |
3077 | */ | |
f2b50c11 | 3078 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
3079 | crtc_x, crtc_y, crtc_w, crtc_h, |
3080 | 0, 0, src_w, src_h); | |
3081 | ||
3082 | /* Update successful; save new cursor position, if necessary */ | |
3083 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
3084 | crtc->cursor_x = req->x; | |
3085 | crtc->cursor_y = req->y; | |
3086 | } | |
3087 | ||
3088 | return ret; | |
3089 | } | |
3090 | ||
4c813d4d DA |
3091 | static int drm_mode_cursor_common(struct drm_device *dev, |
3092 | struct drm_mode_cursor2 *req, | |
3093 | struct drm_file *file_priv) | |
f453ba04 | 3094 | { |
f453ba04 DA |
3095 | struct drm_crtc *crtc; |
3096 | int ret = 0; | |
3097 | ||
fb3b06c8 DA |
3098 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3099 | return -EINVAL; | |
3100 | ||
7c4eaca4 | 3101 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 3102 | return -EINVAL; |
f453ba04 | 3103 | |
a2b34e22 RC |
3104 | crtc = drm_crtc_find(dev, req->crtc_id); |
3105 | if (!crtc) { | |
58367ed6 | 3106 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 3107 | return -ENOENT; |
f453ba04 | 3108 | } |
f453ba04 | 3109 | |
161d0dc1 MR |
3110 | /* |
3111 | * If this crtc has a universal cursor plane, call that plane's update | |
3112 | * handler rather than using legacy cursor handlers. | |
3113 | */ | |
4d02e2de | 3114 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
f2b50c11 DV |
3115 | if (crtc->cursor) { |
3116 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
3117 | goto out; | |
3118 | } | |
3119 | ||
f453ba04 | 3120 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 3121 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
3122 | ret = -ENXIO; |
3123 | goto out; | |
3124 | } | |
3125 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
3126 | if (crtc->funcs->cursor_set2) |
3127 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
3128 | req->width, req->height, req->hot_x, req->hot_y); | |
3129 | else | |
3130 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
3131 | req->width, req->height); | |
f453ba04 DA |
3132 | } |
3133 | ||
3134 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
3135 | if (crtc->funcs->cursor_move) { | |
3136 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
3137 | } else { | |
f453ba04 DA |
3138 | ret = -EFAULT; |
3139 | goto out; | |
3140 | } | |
3141 | } | |
3142 | out: | |
d059f652 | 3143 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 3144 | |
f453ba04 | 3145 | return ret; |
4c813d4d DA |
3146 | |
3147 | } | |
c8e32cc1 DV |
3148 | |
3149 | ||
3150 | /** | |
3151 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
3152 | * @dev: drm device for the ioctl | |
3153 | * @data: data pointer for the ioctl | |
3154 | * @file_priv: drm file for the ioctl call | |
3155 | * | |
3156 | * Set the cursor configuration based on user request. | |
3157 | * | |
3158 | * Called by the user via ioctl. | |
3159 | * | |
3160 | * Returns: | |
1a498633 | 3161 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3162 | */ |
4c813d4d | 3163 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 3164 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
3165 | { |
3166 | struct drm_mode_cursor *req = data; | |
3167 | struct drm_mode_cursor2 new_req; | |
3168 | ||
3169 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
3170 | new_req.hot_x = new_req.hot_y = 0; | |
3171 | ||
3172 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
3173 | } | |
3174 | ||
c8e32cc1 DV |
3175 | /** |
3176 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
3177 | * @dev: drm device for the ioctl | |
3178 | * @data: data pointer for the ioctl | |
3179 | * @file_priv: drm file for the ioctl call | |
3180 | * | |
3181 | * Set the cursor configuration based on user request. This implements the 2nd | |
3182 | * version of the cursor ioctl, which allows userspace to additionally specify | |
3183 | * the hotspot of the pointer. | |
3184 | * | |
3185 | * Called by the user via ioctl. | |
3186 | * | |
3187 | * Returns: | |
1a498633 | 3188 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3189 | */ |
4c813d4d DA |
3190 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
3191 | void *data, struct drm_file *file_priv) | |
3192 | { | |
3193 | struct drm_mode_cursor2 *req = data; | |
4dfd909f | 3194 | |
4c813d4d | 3195 | return drm_mode_cursor_common(dev, req, file_priv); |
f453ba04 DA |
3196 | } |
3197 | ||
c8e32cc1 DV |
3198 | /** |
3199 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
3200 | * @bpp: bits per pixels | |
3201 | * @depth: bit depth per pixel | |
3202 | * | |
3203 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
3204 | * Useful in fbdev emulation code, since that deals in those values. | |
3205 | */ | |
308e5bcb JB |
3206 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
3207 | { | |
3208 | uint32_t fmt; | |
3209 | ||
3210 | switch (bpp) { | |
3211 | case 8: | |
d84f031b | 3212 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
3213 | break; |
3214 | case 16: | |
3215 | if (depth == 15) | |
04b3924d | 3216 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 3217 | else |
04b3924d | 3218 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
3219 | break; |
3220 | case 24: | |
04b3924d | 3221 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
3222 | break; |
3223 | case 32: | |
3224 | if (depth == 24) | |
04b3924d | 3225 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 3226 | else if (depth == 30) |
04b3924d | 3227 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 3228 | else |
04b3924d | 3229 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
3230 | break; |
3231 | default: | |
04b3924d VS |
3232 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
3233 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
3234 | break; |
3235 | } | |
3236 | ||
3237 | return fmt; | |
3238 | } | |
3239 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
3240 | ||
f453ba04 DA |
3241 | /** |
3242 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
3243 | * @dev: drm device for the ioctl |
3244 | * @data: data pointer for the ioctl | |
3245 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3246 | * |
c8e32cc1 | 3247 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 3248 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
3249 | * |
3250 | * Called by the user via ioctl. | |
3251 | * | |
c8e32cc1 | 3252 | * Returns: |
1a498633 | 3253 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3254 | */ |
3255 | int drm_mode_addfb(struct drm_device *dev, | |
3256 | void *data, struct drm_file *file_priv) | |
3257 | { | |
308e5bcb JB |
3258 | struct drm_mode_fb_cmd *or = data; |
3259 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 3260 | int ret; |
308e5bcb | 3261 | |
228f2cb3 | 3262 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
3263 | r.fb_id = or->fb_id; |
3264 | r.width = or->width; | |
3265 | r.height = or->height; | |
3266 | r.pitches[0] = or->pitch; | |
3267 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
3268 | r.handles[0] = or->handle; | |
3269 | ||
228f2cb3 CE |
3270 | ret = drm_mode_addfb2(dev, &r, file_priv); |
3271 | if (ret) | |
3272 | return ret; | |
308e5bcb | 3273 | |
228f2cb3 | 3274 | or->fb_id = r.fb_id; |
4b096ac1 | 3275 | |
baf698b0 | 3276 | return 0; |
308e5bcb JB |
3277 | } |
3278 | ||
cff91b62 | 3279 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
3280 | { |
3281 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
3282 | ||
3283 | switch (format) { | |
3284 | case DRM_FORMAT_C8: | |
3285 | case DRM_FORMAT_RGB332: | |
3286 | case DRM_FORMAT_BGR233: | |
3287 | case DRM_FORMAT_XRGB4444: | |
3288 | case DRM_FORMAT_XBGR4444: | |
3289 | case DRM_FORMAT_RGBX4444: | |
3290 | case DRM_FORMAT_BGRX4444: | |
3291 | case DRM_FORMAT_ARGB4444: | |
3292 | case DRM_FORMAT_ABGR4444: | |
3293 | case DRM_FORMAT_RGBA4444: | |
3294 | case DRM_FORMAT_BGRA4444: | |
3295 | case DRM_FORMAT_XRGB1555: | |
3296 | case DRM_FORMAT_XBGR1555: | |
3297 | case DRM_FORMAT_RGBX5551: | |
3298 | case DRM_FORMAT_BGRX5551: | |
3299 | case DRM_FORMAT_ARGB1555: | |
3300 | case DRM_FORMAT_ABGR1555: | |
3301 | case DRM_FORMAT_RGBA5551: | |
3302 | case DRM_FORMAT_BGRA5551: | |
3303 | case DRM_FORMAT_RGB565: | |
3304 | case DRM_FORMAT_BGR565: | |
3305 | case DRM_FORMAT_RGB888: | |
3306 | case DRM_FORMAT_BGR888: | |
3307 | case DRM_FORMAT_XRGB8888: | |
3308 | case DRM_FORMAT_XBGR8888: | |
3309 | case DRM_FORMAT_RGBX8888: | |
3310 | case DRM_FORMAT_BGRX8888: | |
3311 | case DRM_FORMAT_ARGB8888: | |
3312 | case DRM_FORMAT_ABGR8888: | |
3313 | case DRM_FORMAT_RGBA8888: | |
3314 | case DRM_FORMAT_BGRA8888: | |
3315 | case DRM_FORMAT_XRGB2101010: | |
3316 | case DRM_FORMAT_XBGR2101010: | |
3317 | case DRM_FORMAT_RGBX1010102: | |
3318 | case DRM_FORMAT_BGRX1010102: | |
3319 | case DRM_FORMAT_ARGB2101010: | |
3320 | case DRM_FORMAT_ABGR2101010: | |
3321 | case DRM_FORMAT_RGBA1010102: | |
3322 | case DRM_FORMAT_BGRA1010102: | |
3323 | case DRM_FORMAT_YUYV: | |
3324 | case DRM_FORMAT_YVYU: | |
3325 | case DRM_FORMAT_UYVY: | |
3326 | case DRM_FORMAT_VYUY: | |
3327 | case DRM_FORMAT_AYUV: | |
3328 | case DRM_FORMAT_NV12: | |
3329 | case DRM_FORMAT_NV21: | |
3330 | case DRM_FORMAT_NV16: | |
3331 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3332 | case DRM_FORMAT_NV24: |
3333 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3334 | case DRM_FORMAT_YUV410: |
3335 | case DRM_FORMAT_YVU410: | |
3336 | case DRM_FORMAT_YUV411: | |
3337 | case DRM_FORMAT_YVU411: | |
3338 | case DRM_FORMAT_YUV420: | |
3339 | case DRM_FORMAT_YVU420: | |
3340 | case DRM_FORMAT_YUV422: | |
3341 | case DRM_FORMAT_YVU422: | |
3342 | case DRM_FORMAT_YUV444: | |
3343 | case DRM_FORMAT_YVU444: | |
3344 | return 0; | |
3345 | default: | |
23c453a4 VS |
3346 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3347 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3348 | return -EINVAL; |
3349 | } | |
3350 | } | |
3351 | ||
cff91b62 | 3352 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3353 | { |
3354 | int ret, hsub, vsub, num_planes, i; | |
3355 | ||
3356 | ret = format_check(r); | |
3357 | if (ret) { | |
6ba6d03e VS |
3358 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3359 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3360 | return ret; |
3361 | } | |
3362 | ||
3363 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3364 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3365 | num_planes = drm_format_num_planes(r->pixel_format); | |
3366 | ||
3367 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3368 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3369 | return -EINVAL; |
3370 | } | |
3371 | ||
3372 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3373 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3374 | return -EINVAL; |
3375 | } | |
3376 | ||
3377 | for (i = 0; i < num_planes; i++) { | |
3378 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3379 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3380 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3381 | |
3382 | if (!r->handles[i]) { | |
1aa1b11c | 3383 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3384 | return -EINVAL; |
3385 | } | |
3386 | ||
b180b5d1 VS |
3387 | if ((uint64_t) width * cpp > UINT_MAX) |
3388 | return -ERANGE; | |
3389 | ||
3390 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3391 | return -ERANGE; | |
3392 | ||
3393 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3394 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3395 | return -EINVAL; |
3396 | } | |
e3eb3250 RC |
3397 | |
3398 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { | |
3399 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", | |
3400 | r->modifier[i], i); | |
3401 | return -EINVAL; | |
3402 | } | |
570655b0 RC |
3403 | |
3404 | /* modifier specific checks: */ | |
3405 | switch (r->modifier[i]) { | |
3406 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: | |
3407 | /* NOTE: the pitch restriction may be lifted later if it turns | |
3408 | * out that no hw has this restriction: | |
3409 | */ | |
3410 | if (r->pixel_format != DRM_FORMAT_NV12 || | |
3411 | width % 128 || height % 32 || | |
3412 | r->pitches[i] % 128) { | |
3413 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); | |
3414 | return -EINVAL; | |
3415 | } | |
3416 | break; | |
3417 | ||
3418 | default: | |
3419 | break; | |
3420 | } | |
d1b45d5f VS |
3421 | } |
3422 | ||
bbe16a40 DV |
3423 | for (i = num_planes; i < 4; i++) { |
3424 | if (r->modifier[i]) { | |
3425 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); | |
3426 | return -EINVAL; | |
3427 | } | |
3428 | ||
3429 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ | |
3430 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) | |
3431 | continue; | |
3432 | ||
3433 | if (r->handles[i]) { | |
3434 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); | |
3435 | return -EINVAL; | |
3436 | } | |
3437 | ||
3438 | if (r->pitches[i]) { | |
3439 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); | |
3440 | return -EINVAL; | |
3441 | } | |
3442 | ||
3443 | if (r->offsets[i]) { | |
3444 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); | |
3445 | return -EINVAL; | |
3446 | } | |
3447 | } | |
3448 | ||
d1b45d5f VS |
3449 | return 0; |
3450 | } | |
3451 | ||
9a6f5130 CW |
3452 | static struct drm_framebuffer * |
3453 | internal_framebuffer_create(struct drm_device *dev, | |
1eb83451 | 3454 | const struct drm_mode_fb_cmd2 *r, |
9a6f5130 | 3455 | struct drm_file *file_priv) |
308e5bcb | 3456 | { |
f453ba04 DA |
3457 | struct drm_mode_config *config = &dev->mode_config; |
3458 | struct drm_framebuffer *fb; | |
4a1b0714 | 3459 | int ret; |
f453ba04 | 3460 | |
e3eb3250 | 3461 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
e3cc3520 | 3462 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
c394c2b0 | 3463 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3464 | } |
3465 | ||
f453ba04 | 3466 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3467 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3468 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3469 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3470 | } |
3471 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3472 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3473 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3474 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3475 | } |
3476 | ||
e3eb3250 RC |
3477 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
3478 | !dev->mode_config.allow_fb_modifiers) { | |
3479 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); | |
3480 | return ERR_PTR(-EINVAL); | |
3481 | } | |
3482 | ||
d1b45d5f VS |
3483 | ret = framebuffer_check(r); |
3484 | if (ret) | |
c394c2b0 | 3485 | return ERR_PTR(ret); |
935b5977 | 3486 | |
f453ba04 | 3487 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3488 | if (IS_ERR(fb)) { |
1aa1b11c | 3489 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3490 | return fb; |
f453ba04 DA |
3491 | } |
3492 | ||
c394c2b0 MR |
3493 | return fb; |
3494 | } | |
4b096ac1 | 3495 | |
c394c2b0 MR |
3496 | /** |
3497 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3498 | * @dev: drm device for the ioctl | |
3499 | * @data: data pointer for the ioctl | |
3500 | * @file_priv: drm file for the ioctl call | |
3501 | * | |
3502 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3503 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3504 | * and uses fourcc codes as pixel format specifiers. | |
3505 | * | |
3506 | * Called by the user via ioctl. | |
3507 | * | |
3508 | * Returns: | |
1a498633 | 3509 | * Zero on success, negative errno on failure. |
c394c2b0 MR |
3510 | */ |
3511 | int drm_mode_addfb2(struct drm_device *dev, | |
3512 | void *data, struct drm_file *file_priv) | |
3513 | { | |
9a6f5130 | 3514 | struct drm_mode_fb_cmd2 *r = data; |
c394c2b0 MR |
3515 | struct drm_framebuffer *fb; |
3516 | ||
3517 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3518 | return -EINVAL; | |
3519 | ||
9a6f5130 | 3520 | fb = internal_framebuffer_create(dev, r, file_priv); |
c394c2b0 MR |
3521 | if (IS_ERR(fb)) |
3522 | return PTR_ERR(fb); | |
3523 | ||
9a6f5130 | 3524 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
9a6f5130 | 3525 | r->fb_id = fb->base.id; |
c7e1c59a DA |
3526 | |
3527 | /* Transfer ownership to the filp for reaping on close */ | |
3528 | mutex_lock(&file_priv->fbs_lock); | |
9a6f5130 CW |
3529 | list_add(&fb->filp_head, &file_priv->fbs); |
3530 | mutex_unlock(&file_priv->fbs_lock); | |
3531 | ||
c394c2b0 | 3532 | return 0; |
f453ba04 DA |
3533 | } |
3534 | ||
f2d580b9 ML |
3535 | struct drm_mode_rmfb_work { |
3536 | struct work_struct work; | |
3537 | struct list_head fbs; | |
3538 | }; | |
3539 | ||
3540 | static void drm_mode_rmfb_work_fn(struct work_struct *w) | |
3541 | { | |
3542 | struct drm_mode_rmfb_work *arg = container_of(w, typeof(*arg), work); | |
3543 | ||
3544 | while (!list_empty(&arg->fbs)) { | |
3545 | struct drm_framebuffer *fb = | |
3546 | list_first_entry(&arg->fbs, typeof(*fb), filp_head); | |
3547 | ||
3548 | list_del_init(&fb->filp_head); | |
3549 | drm_framebuffer_remove(fb); | |
3550 | } | |
3551 | } | |
3552 | ||
f453ba04 DA |
3553 | /** |
3554 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3555 | * @dev: drm device for the ioctl |
3556 | * @data: data pointer for the ioctl | |
3557 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3558 | * |
f453ba04 DA |
3559 | * Remove the FB specified by the user. |
3560 | * | |
3561 | * Called by the user via ioctl. | |
3562 | * | |
c8e32cc1 | 3563 | * Returns: |
1a498633 | 3564 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3565 | */ |
3566 | int drm_mode_rmfb(struct drm_device *dev, | |
3567 | void *data, struct drm_file *file_priv) | |
3568 | { | |
f453ba04 DA |
3569 | struct drm_framebuffer *fb = NULL; |
3570 | struct drm_framebuffer *fbl = NULL; | |
3571 | uint32_t *id = data; | |
f453ba04 DA |
3572 | int found = 0; |
3573 | ||
fb3b06c8 DA |
3574 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3575 | return -EINVAL; | |
3576 | ||
72fe90b8 DA |
3577 | fb = drm_framebuffer_lookup(dev, *id); |
3578 | if (!fb) | |
3579 | return -ENOENT; | |
3580 | ||
4b096ac1 | 3581 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
3582 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3583 | if (fb == fbl) | |
3584 | found = 1; | |
72fe90b8 DA |
3585 | if (!found) { |
3586 | mutex_unlock(&file_priv->fbs_lock); | |
3587 | goto fail_unref; | |
3588 | } | |
2b677e8c | 3589 | |
4b096ac1 DV |
3590 | list_del_init(&fb->filp_head); |
3591 | mutex_unlock(&file_priv->fbs_lock); | |
f453ba04 | 3592 | |
72fe90b8 DA |
3593 | /* drop the reference we picked up in framebuffer lookup */ |
3594 | drm_framebuffer_unreference(fb); | |
2b677e8c | 3595 | |
f2d580b9 ML |
3596 | /* |
3597 | * we now own the reference that was stored in the fbs list | |
3598 | * | |
3599 | * drm_framebuffer_remove may fail with -EINTR on pending signals, | |
3600 | * so run this in a separate stack as there's no way to correctly | |
3601 | * handle this after the fb is already removed from the lookup table. | |
3602 | */ | |
3603 | if (drm_framebuffer_read_refcount(fb) > 1) { | |
3604 | struct drm_mode_rmfb_work arg; | |
3605 | ||
3606 | INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); | |
3607 | INIT_LIST_HEAD(&arg.fbs); | |
3608 | list_add_tail(&fb->filp_head, &arg.fbs); | |
3609 | ||
3610 | schedule_work(&arg.work); | |
3611 | flush_work(&arg.work); | |
3612 | destroy_work_on_stack(&arg.work); | |
3613 | } else | |
3614 | drm_framebuffer_unreference(fb); | |
3615 | ||
72fe90b8 | 3616 | return 0; |
2b677e8c | 3617 | |
72fe90b8 DA |
3618 | fail_unref: |
3619 | drm_framebuffer_unreference(fb); | |
37c4e705 | 3620 | return -ENOENT; |
f453ba04 DA |
3621 | } |
3622 | ||
3623 | /** | |
3624 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3625 | * @dev: drm device for the ioctl |
3626 | * @data: data pointer for the ioctl | |
3627 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3628 | * |
f453ba04 DA |
3629 | * Lookup the FB given its ID and return info about it. |
3630 | * | |
3631 | * Called by the user via ioctl. | |
3632 | * | |
c8e32cc1 | 3633 | * Returns: |
1a498633 | 3634 | * Zero on success, negative errno on failure. |
f453ba04 DA |
3635 | */ |
3636 | int drm_mode_getfb(struct drm_device *dev, | |
3637 | void *data, struct drm_file *file_priv) | |
3638 | { | |
3639 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3640 | struct drm_framebuffer *fb; |
58c0dca1 | 3641 | int ret; |
f453ba04 | 3642 | |
fb3b06c8 DA |
3643 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3644 | return -EINVAL; | |
3645 | ||
786b99ed | 3646 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3647 | if (!fb) |
37c4e705 | 3648 | return -ENOENT; |
f453ba04 DA |
3649 | |
3650 | r->height = fb->height; | |
3651 | r->width = fb->width; | |
3652 | r->depth = fb->depth; | |
3653 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3654 | r->pitch = fb->pitches[0]; |
101b96f3 | 3655 | if (fb->funcs->create_handle) { |
b3ac9f25 | 3656 | if (drm_is_current_master(file_priv) || capable(CAP_SYS_ADMIN) || |
43683057 | 3657 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3658 | ret = fb->funcs->create_handle(fb, file_priv, |
3659 | &r->handle); | |
3660 | } else { | |
3661 | /* GET_FB() is an unprivileged ioctl so we must not | |
3662 | * return a buffer-handle to non-master processes! For | |
3663 | * backwards-compatibility reasons, we cannot make | |
3664 | * GET_FB() privileged, so just return an invalid handle | |
3665 | * for non-masters. */ | |
3666 | r->handle = 0; | |
3667 | ret = 0; | |
3668 | } | |
3669 | } else { | |
af26ef3b | 3670 | ret = -ENODEV; |
101b96f3 | 3671 | } |
f453ba04 | 3672 | |
58c0dca1 DV |
3673 | drm_framebuffer_unreference(fb); |
3674 | ||
f453ba04 DA |
3675 | return ret; |
3676 | } | |
3677 | ||
c8e32cc1 DV |
3678 | /** |
3679 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3680 | * @dev: drm device for the ioctl | |
3681 | * @data: data pointer for the ioctl | |
3682 | * @file_priv: drm file for the ioctl call | |
3683 | * | |
3684 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3685 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3686 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3687 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3688 | * | |
3689 | * Modesetting drivers which always update the frontbuffer do not need to | |
3690 | * implement the corresponding ->dirty framebuffer callback. | |
3691 | * | |
3692 | * Called by the user via ioctl. | |
3693 | * | |
3694 | * Returns: | |
1a498633 | 3695 | * Zero on success, negative errno on failure. |
c8e32cc1 | 3696 | */ |
884840aa JB |
3697 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3698 | void *data, struct drm_file *file_priv) | |
3699 | { | |
3700 | struct drm_clip_rect __user *clips_ptr; | |
3701 | struct drm_clip_rect *clips = NULL; | |
3702 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3703 | struct drm_framebuffer *fb; |
3704 | unsigned flags; | |
3705 | int num_clips; | |
4a1b0714 | 3706 | int ret; |
884840aa | 3707 | |
fb3b06c8 DA |
3708 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3709 | return -EINVAL; | |
3710 | ||
786b99ed | 3711 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3712 | if (!fb) |
37c4e705 | 3713 | return -ENOENT; |
884840aa JB |
3714 | |
3715 | num_clips = r->num_clips; | |
81f6c7f8 | 3716 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3717 | |
3718 | if (!num_clips != !clips_ptr) { | |
3719 | ret = -EINVAL; | |
3720 | goto out_err1; | |
3721 | } | |
3722 | ||
3723 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3724 | ||
3725 | /* If userspace annotates copy, clips must come in pairs */ | |
3726 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3727 | ret = -EINVAL; | |
3728 | goto out_err1; | |
3729 | } | |
3730 | ||
3731 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3732 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3733 | ret = -EINVAL; | |
3734 | goto out_err1; | |
3735 | } | |
bd3f0ff9 | 3736 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
884840aa JB |
3737 | if (!clips) { |
3738 | ret = -ENOMEM; | |
3739 | goto out_err1; | |
3740 | } | |
3741 | ||
3742 | ret = copy_from_user(clips, clips_ptr, | |
3743 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3744 | if (ret) { |
3745 | ret = -EFAULT; | |
884840aa | 3746 | goto out_err2; |
e902a358 | 3747 | } |
884840aa JB |
3748 | } |
3749 | ||
3750 | if (fb->funcs->dirty) { | |
02b00162 TH |
3751 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3752 | clips, num_clips); | |
884840aa JB |
3753 | } else { |
3754 | ret = -ENOSYS; | |
884840aa JB |
3755 | } |
3756 | ||
3757 | out_err2: | |
3758 | kfree(clips); | |
3759 | out_err1: | |
4ccf097f DV |
3760 | drm_framebuffer_unreference(fb); |
3761 | ||
884840aa JB |
3762 | return ret; |
3763 | } | |
3764 | ||
f453ba04 DA |
3765 | /** |
3766 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3767 | * @priv: drm file for the ioctl |
f453ba04 | 3768 | * |
f453ba04 DA |
3769 | * Destroy all the FBs associated with @filp. |
3770 | * | |
3771 | * Called by the user via ioctl. | |
3772 | * | |
c8e32cc1 | 3773 | * Returns: |
1a498633 | 3774 | * Zero on success, negative errno on failure. |
f453ba04 | 3775 | */ |
ea39f835 | 3776 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3777 | { |
f453ba04 | 3778 | struct drm_framebuffer *fb, *tfb; |
f2d580b9 ML |
3779 | struct drm_mode_rmfb_work arg; |
3780 | ||
3781 | INIT_LIST_HEAD(&arg.fbs); | |
f453ba04 | 3782 | |
1b116297 DV |
3783 | /* |
3784 | * When the file gets released that means no one else can access the fb | |
e2db726b | 3785 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
1b116297 DV |
3786 | * avoid upsetting lockdep since the universal cursor code adds a |
3787 | * framebuffer while holding mutex locks. | |
3788 | * | |
3789 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3790 | * locks is impossible here since no one else but this function can get | |
3791 | * at it any more. | |
3792 | */ | |
f453ba04 | 3793 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
f2d580b9 ML |
3794 | if (drm_framebuffer_read_refcount(fb) > 1) { |
3795 | list_move_tail(&fb->filp_head, &arg.fbs); | |
3796 | } else { | |
3797 | list_del_init(&fb->filp_head); | |
2b677e8c | 3798 | |
f2d580b9 ML |
3799 | /* This drops the fpriv->fbs reference. */ |
3800 | drm_framebuffer_unreference(fb); | |
3801 | } | |
3802 | } | |
3803 | ||
3804 | if (!list_empty(&arg.fbs)) { | |
3805 | INIT_WORK_ONSTACK(&arg.work, drm_mode_rmfb_work_fn); | |
3806 | ||
3807 | schedule_work(&arg.work); | |
3808 | flush_work(&arg.work); | |
3809 | destroy_work_on_stack(&arg.work); | |
f453ba04 | 3810 | } |
f453ba04 DA |
3811 | } |
3812 | ||
81065548 DV |
3813 | static bool drm_property_type_valid(struct drm_property *property) |
3814 | { | |
3815 | if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) | |
3816 | return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE); | |
3817 | return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE); | |
3818 | } | |
3819 | ||
c8e32cc1 DV |
3820 | /** |
3821 | * drm_property_create - create a new property type | |
3822 | * @dev: drm device | |
3823 | * @flags: flags specifying the property type | |
3824 | * @name: name of the property | |
3825 | * @num_values: number of pre-defined values | |
3826 | * | |
3827 | * This creates a new generic drm property which can then be attached to a drm | |
3828 | * object with drm_object_attach_property. The returned property object must be | |
3829 | * freed with drm_property_destroy. | |
3830 | * | |
3b5b9932 DL |
3831 | * Note that the DRM core keeps a per-device list of properties and that, if |
3832 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3833 | * by the driver. | |
3834 | * | |
c8e32cc1 DV |
3835 | * Returns: |
3836 | * A pointer to the newly created property on success, NULL on failure. | |
3837 | */ | |
f453ba04 DA |
3838 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3839 | const char *name, int num_values) | |
3840 | { | |
3841 | struct drm_property *property = NULL; | |
6bfc56aa | 3842 | int ret; |
f453ba04 DA |
3843 | |
3844 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3845 | if (!property) | |
3846 | return NULL; | |
3847 | ||
98f75de4 RC |
3848 | property->dev = dev; |
3849 | ||
f453ba04 | 3850 | if (num_values) { |
bd3f0ff9 TR |
3851 | property->values = kcalloc(num_values, sizeof(uint64_t), |
3852 | GFP_KERNEL); | |
f453ba04 DA |
3853 | if (!property->values) |
3854 | goto fail; | |
3855 | } | |
3856 | ||
6bfc56aa VS |
3857 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3858 | if (ret) | |
3859 | goto fail; | |
3860 | ||
f453ba04 DA |
3861 | property->flags = flags; |
3862 | property->num_values = num_values; | |
3758b341 | 3863 | INIT_LIST_HEAD(&property->enum_list); |
f453ba04 | 3864 | |
471dd2ef | 3865 | if (name) { |
f453ba04 | 3866 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3867 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3868 | } | |
f453ba04 DA |
3869 | |
3870 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3871 | |
3872 | WARN_ON(!drm_property_type_valid(property)); | |
3873 | ||
f453ba04 DA |
3874 | return property; |
3875 | fail: | |
6bfc56aa | 3876 | kfree(property->values); |
f453ba04 DA |
3877 | kfree(property); |
3878 | return NULL; | |
3879 | } | |
3880 | EXPORT_SYMBOL(drm_property_create); | |
3881 | ||
c8e32cc1 | 3882 | /** |
2aa9d2bc | 3883 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3884 | * @dev: drm device |
3885 | * @flags: flags specifying the property type | |
3886 | * @name: name of the property | |
3887 | * @props: enumeration lists with property values | |
3888 | * @num_values: number of pre-defined values | |
3889 | * | |
3890 | * This creates a new generic drm property which can then be attached to a drm | |
3891 | * object with drm_object_attach_property. The returned property object must be | |
3892 | * freed with drm_property_destroy. | |
3893 | * | |
3894 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3895 | * properties. | |
3896 | * | |
3897 | * Returns: | |
3898 | * A pointer to the newly created property on success, NULL on failure. | |
3899 | */ | |
4a67d391 SH |
3900 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3901 | const char *name, | |
3902 | const struct drm_prop_enum_list *props, | |
3903 | int num_values) | |
3904 | { | |
3905 | struct drm_property *property; | |
3906 | int i, ret; | |
3907 | ||
3908 | flags |= DRM_MODE_PROP_ENUM; | |
3909 | ||
3910 | property = drm_property_create(dev, flags, name, num_values); | |
3911 | if (!property) | |
3912 | return NULL; | |
3913 | ||
3914 | for (i = 0; i < num_values; i++) { | |
3915 | ret = drm_property_add_enum(property, i, | |
3916 | props[i].type, | |
3917 | props[i].name); | |
3918 | if (ret) { | |
3919 | drm_property_destroy(dev, property); | |
3920 | return NULL; | |
3921 | } | |
3922 | } | |
3923 | ||
3924 | return property; | |
3925 | } | |
3926 | EXPORT_SYMBOL(drm_property_create_enum); | |
3927 | ||
c8e32cc1 | 3928 | /** |
2aa9d2bc | 3929 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3930 | * @dev: drm device |
3931 | * @flags: flags specifying the property type | |
3932 | * @name: name of the property | |
3933 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3934 | * @num_props: size of the @props array |
3935 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3936 | * |
295ee853 | 3937 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3938 | * object with drm_object_attach_property. The returned property object must be |
3939 | * freed with drm_property_destroy. | |
3940 | * | |
3941 | * Compared to plain enumeration properties userspace is allowed to set any | |
3942 | * or'ed together combination of the predefined property bitflag values | |
3943 | * | |
3944 | * Returns: | |
3945 | * A pointer to the newly created property on success, NULL on failure. | |
3946 | */ | |
49e27545 RC |
3947 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3948 | int flags, const char *name, | |
3949 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3950 | int num_props, |
3951 | uint64_t supported_bits) | |
49e27545 RC |
3952 | { |
3953 | struct drm_property *property; | |
7689ffb3 VS |
3954 | int i, ret, index = 0; |
3955 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3956 | |
3957 | flags |= DRM_MODE_PROP_BITMASK; | |
3958 | ||
3959 | property = drm_property_create(dev, flags, name, num_values); | |
3960 | if (!property) | |
3961 | return NULL; | |
7689ffb3 VS |
3962 | for (i = 0; i < num_props; i++) { |
3963 | if (!(supported_bits & (1ULL << props[i].type))) | |
3964 | continue; | |
49e27545 | 3965 | |
7689ffb3 VS |
3966 | if (WARN_ON(index >= num_values)) { |
3967 | drm_property_destroy(dev, property); | |
3968 | return NULL; | |
3969 | } | |
3970 | ||
3971 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3972 | props[i].type, |
3973 | props[i].name); | |
3974 | if (ret) { | |
3975 | drm_property_destroy(dev, property); | |
3976 | return NULL; | |
3977 | } | |
3978 | } | |
3979 | ||
3980 | return property; | |
3981 | } | |
3982 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3983 | ||
ebc44cf3 RC |
3984 | static struct drm_property *property_create_range(struct drm_device *dev, |
3985 | int flags, const char *name, | |
3986 | uint64_t min, uint64_t max) | |
3987 | { | |
3988 | struct drm_property *property; | |
3989 | ||
3990 | property = drm_property_create(dev, flags, name, 2); | |
3991 | if (!property) | |
3992 | return NULL; | |
3993 | ||
3994 | property->values[0] = min; | |
3995 | property->values[1] = max; | |
3996 | ||
3997 | return property; | |
3998 | } | |
3999 | ||
c8e32cc1 | 4000 | /** |
960cd9d4 | 4001 | * drm_property_create_range - create a new unsigned ranged property type |
c8e32cc1 DV |
4002 | * @dev: drm device |
4003 | * @flags: flags specifying the property type | |
4004 | * @name: name of the property | |
4005 | * @min: minimum value of the property | |
4006 | * @max: maximum value of the property | |
4007 | * | |
4008 | * This creates a new generic drm property which can then be attached to a drm | |
4009 | * object with drm_object_attach_property. The returned property object must be | |
4010 | * freed with drm_property_destroy. | |
4011 | * | |
960cd9d4 DV |
4012 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
4013 | * range inclusive. | |
c8e32cc1 DV |
4014 | * |
4015 | * Returns: | |
4016 | * A pointer to the newly created property on success, NULL on failure. | |
4017 | */ | |
d9bc3c02 SH |
4018 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
4019 | const char *name, | |
4020 | uint64_t min, uint64_t max) | |
4021 | { | |
ebc44cf3 RC |
4022 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
4023 | name, min, max); | |
d9bc3c02 SH |
4024 | } |
4025 | EXPORT_SYMBOL(drm_property_create_range); | |
4026 | ||
960cd9d4 DV |
4027 | /** |
4028 | * drm_property_create_signed_range - create a new signed ranged property type | |
4029 | * @dev: drm device | |
4030 | * @flags: flags specifying the property type | |
4031 | * @name: name of the property | |
4032 | * @min: minimum value of the property | |
4033 | * @max: maximum value of the property | |
4034 | * | |
4035 | * This creates a new generic drm property which can then be attached to a drm | |
4036 | * object with drm_object_attach_property. The returned property object must be | |
4037 | * freed with drm_property_destroy. | |
4038 | * | |
4039 | * Userspace is allowed to set any signed integer value in the (min, max) | |
4040 | * range inclusive. | |
4041 | * | |
4042 | * Returns: | |
4043 | * A pointer to the newly created property on success, NULL on failure. | |
4044 | */ | |
ebc44cf3 RC |
4045 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
4046 | int flags, const char *name, | |
4047 | int64_t min, int64_t max) | |
4048 | { | |
4049 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
4050 | name, I642U64(min), I642U64(max)); | |
4051 | } | |
4052 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
4053 | ||
960cd9d4 DV |
4054 | /** |
4055 | * drm_property_create_object - create a new object property type | |
4056 | * @dev: drm device | |
4057 | * @flags: flags specifying the property type | |
4058 | * @name: name of the property | |
4059 | * @type: object type from DRM_MODE_OBJECT_* defines | |
4060 | * | |
4061 | * This creates a new generic drm property which can then be attached to a drm | |
4062 | * object with drm_object_attach_property. The returned property object must be | |
4063 | * freed with drm_property_destroy. | |
4064 | * | |
4065 | * Userspace is only allowed to set this to any property value of the given | |
4066 | * @type. Only useful for atomic properties, which is enforced. | |
4067 | * | |
4068 | * Returns: | |
4069 | * A pointer to the newly created property on success, NULL on failure. | |
4070 | */ | |
98f75de4 RC |
4071 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
4072 | int flags, const char *name, uint32_t type) | |
4073 | { | |
4074 | struct drm_property *property; | |
4075 | ||
4076 | flags |= DRM_MODE_PROP_OBJECT; | |
4077 | ||
960cd9d4 DV |
4078 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
4079 | return NULL; | |
4080 | ||
98f75de4 RC |
4081 | property = drm_property_create(dev, flags, name, 1); |
4082 | if (!property) | |
4083 | return NULL; | |
4084 | ||
4085 | property->values[0] = type; | |
4086 | ||
4087 | return property; | |
4088 | } | |
4089 | EXPORT_SYMBOL(drm_property_create_object); | |
4090 | ||
960cd9d4 DV |
4091 | /** |
4092 | * drm_property_create_bool - create a new boolean property type | |
4093 | * @dev: drm device | |
4094 | * @flags: flags specifying the property type | |
4095 | * @name: name of the property | |
4096 | * | |
4097 | * This creates a new generic drm property which can then be attached to a drm | |
4098 | * object with drm_object_attach_property. The returned property object must be | |
4099 | * freed with drm_property_destroy. | |
4100 | * | |
4101 | * This is implemented as a ranged property with only {0, 1} as valid values. | |
4102 | * | |
4103 | * Returns: | |
4104 | * A pointer to the newly created property on success, NULL on failure. | |
4105 | */ | |
4106 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, | |
4107 | const char *name) | |
4108 | { | |
4109 | return drm_property_create_range(dev, flags, name, 0, 1); | |
4110 | } | |
4111 | EXPORT_SYMBOL(drm_property_create_bool); | |
4112 | ||
c8e32cc1 DV |
4113 | /** |
4114 | * drm_property_add_enum - add a possible value to an enumeration property | |
4115 | * @property: enumeration property to change | |
4116 | * @index: index of the new enumeration | |
4117 | * @value: value of the new enumeration | |
4118 | * @name: symbolic name of the new enumeration | |
4119 | * | |
4120 | * This functions adds enumerations to a property. | |
4121 | * | |
4122 | * It's use is deprecated, drivers should use one of the more specific helpers | |
4123 | * to directly create the property with all enumerations already attached. | |
4124 | * | |
4125 | * Returns: | |
4126 | * Zero on success, error code on failure. | |
4127 | */ | |
f453ba04 DA |
4128 | int drm_property_add_enum(struct drm_property *property, int index, |
4129 | uint64_t value, const char *name) | |
4130 | { | |
4131 | struct drm_property_enum *prop_enum; | |
4132 | ||
5ea22f24 RC |
4133 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4134 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
4135 | return -EINVAL; |
4136 | ||
4137 | /* | |
4138 | * Bitmask enum properties have the additional constraint of values | |
4139 | * from 0 to 63 | |
4140 | */ | |
5ea22f24 RC |
4141 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
4142 | (value > 63)) | |
f453ba04 DA |
4143 | return -EINVAL; |
4144 | ||
3758b341 DV |
4145 | if (!list_empty(&property->enum_list)) { |
4146 | list_for_each_entry(prop_enum, &property->enum_list, head) { | |
f453ba04 DA |
4147 | if (prop_enum->value == value) { |
4148 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
4149 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
4150 | return 0; | |
4151 | } | |
4152 | } | |
4153 | } | |
4154 | ||
4155 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
4156 | if (!prop_enum) | |
4157 | return -ENOMEM; | |
4158 | ||
4159 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
4160 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
4161 | prop_enum->value = value; | |
4162 | ||
4163 | property->values[index] = value; | |
3758b341 | 4164 | list_add_tail(&prop_enum->head, &property->enum_list); |
f453ba04 DA |
4165 | return 0; |
4166 | } | |
4167 | EXPORT_SYMBOL(drm_property_add_enum); | |
4168 | ||
c8e32cc1 DV |
4169 | /** |
4170 | * drm_property_destroy - destroy a drm property | |
4171 | * @dev: drm device | |
4172 | * @property: property to destry | |
4173 | * | |
4174 | * This function frees a property including any attached resources like | |
4175 | * enumeration values. | |
4176 | */ | |
f453ba04 DA |
4177 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
4178 | { | |
4179 | struct drm_property_enum *prop_enum, *pt; | |
4180 | ||
3758b341 | 4181 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
f453ba04 DA |
4182 | list_del(&prop_enum->head); |
4183 | kfree(prop_enum); | |
4184 | } | |
4185 | ||
4186 | if (property->num_values) | |
4187 | kfree(property->values); | |
7c8f6d25 | 4188 | drm_mode_object_unregister(dev, &property->base); |
f453ba04 DA |
4189 | list_del(&property->head); |
4190 | kfree(property); | |
4191 | } | |
4192 | EXPORT_SYMBOL(drm_property_destroy); | |
4193 | ||
c8e32cc1 DV |
4194 | /** |
4195 | * drm_object_attach_property - attach a property to a modeset object | |
4196 | * @obj: drm modeset object | |
4197 | * @property: property to attach | |
4198 | * @init_val: initial value of the property | |
4199 | * | |
4200 | * This attaches the given property to the modeset object with the given initial | |
4201 | * value. Currently this function cannot fail since the properties are stored in | |
4202 | * a statically sized array. | |
4203 | */ | |
c543188a PZ |
4204 | void drm_object_attach_property(struct drm_mode_object *obj, |
4205 | struct drm_property *property, | |
4206 | uint64_t init_val) | |
4207 | { | |
7f88a9be | 4208 | int count = obj->properties->count; |
c543188a | 4209 | |
7f88a9be PZ |
4210 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
4211 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
4212 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
4213 | "you see this message on the same object type.\n", | |
4214 | obj->type); | |
4215 | return; | |
c543188a PZ |
4216 | } |
4217 | ||
b17cd757 | 4218 | obj->properties->properties[count] = property; |
7f88a9be PZ |
4219 | obj->properties->values[count] = init_val; |
4220 | obj->properties->count++; | |
88a48e29 RC |
4221 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
4222 | obj->properties->atomic_count++; | |
c543188a PZ |
4223 | } |
4224 | EXPORT_SYMBOL(drm_object_attach_property); | |
4225 | ||
c8e32cc1 DV |
4226 | /** |
4227 | * drm_object_property_set_value - set the value of a property | |
4228 | * @obj: drm mode object to set property value for | |
4229 | * @property: property to set | |
4230 | * @val: value the property should be set to | |
4231 | * | |
4232 | * This functions sets a given property on a given object. This function only | |
4233 | * changes the software state of the property, it does not call into the | |
4234 | * driver's ->set_property callback. | |
4235 | * | |
4236 | * Returns: | |
4237 | * Zero on success, error code on failure. | |
4238 | */ | |
c543188a PZ |
4239 | int drm_object_property_set_value(struct drm_mode_object *obj, |
4240 | struct drm_property *property, uint64_t val) | |
4241 | { | |
4242 | int i; | |
4243 | ||
7f88a9be | 4244 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4245 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4246 | obj->properties->values[i] = val; |
4247 | return 0; | |
4248 | } | |
4249 | } | |
4250 | ||
4251 | return -EINVAL; | |
4252 | } | |
4253 | EXPORT_SYMBOL(drm_object_property_set_value); | |
4254 | ||
c8e32cc1 DV |
4255 | /** |
4256 | * drm_object_property_get_value - retrieve the value of a property | |
4257 | * @obj: drm mode object to get property value from | |
4258 | * @property: property to retrieve | |
4259 | * @val: storage for the property value | |
4260 | * | |
4261 | * This function retrieves the softare state of the given property for the given | |
4262 | * property. Since there is no driver callback to retrieve the current property | |
4263 | * value this might be out of sync with the hardware, depending upon the driver | |
4264 | * and property. | |
4265 | * | |
4266 | * Returns: | |
4267 | * Zero on success, error code on failure. | |
4268 | */ | |
c543188a PZ |
4269 | int drm_object_property_get_value(struct drm_mode_object *obj, |
4270 | struct drm_property *property, uint64_t *val) | |
4271 | { | |
4272 | int i; | |
4273 | ||
88a48e29 RC |
4274 | /* read-only properties bypass atomic mechanism and still store |
4275 | * their value in obj->properties->values[].. mostly to avoid | |
4276 | * having to deal w/ EDID and similar props in atomic paths: | |
4277 | */ | |
4278 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && | |
4279 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) | |
4280 | return drm_atomic_get_property(obj, property, val); | |
4281 | ||
7f88a9be | 4282 | for (i = 0; i < obj->properties->count; i++) { |
b17cd757 | 4283 | if (obj->properties->properties[i] == property) { |
c543188a PZ |
4284 | *val = obj->properties->values[i]; |
4285 | return 0; | |
4286 | } | |
4287 | } | |
4288 | ||
4289 | return -EINVAL; | |
4290 | } | |
4291 | EXPORT_SYMBOL(drm_object_property_get_value); | |
4292 | ||
c8e32cc1 | 4293 | /** |
1a498633 | 4294 | * drm_mode_getproperty_ioctl - get the property metadata |
c8e32cc1 DV |
4295 | * @dev: DRM device |
4296 | * @data: ioctl data | |
4297 | * @file_priv: DRM file info | |
4298 | * | |
1a498633 DV |
4299 | * This function retrieves the metadata for a given property, like the different |
4300 | * possible values for an enum property or the limits for a range property. | |
4301 | * | |
4302 | * Blob properties are special | |
c8e32cc1 DV |
4303 | * |
4304 | * Called by the user via ioctl. | |
4305 | * | |
4306 | * Returns: | |
1a498633 | 4307 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4308 | */ |
f453ba04 DA |
4309 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
4310 | void *data, struct drm_file *file_priv) | |
4311 | { | |
f453ba04 DA |
4312 | struct drm_mode_get_property *out_resp = data; |
4313 | struct drm_property *property; | |
4314 | int enum_count = 0; | |
f453ba04 DA |
4315 | int value_count = 0; |
4316 | int ret = 0, i; | |
4317 | int copied; | |
4318 | struct drm_property_enum *prop_enum; | |
4319 | struct drm_mode_property_enum __user *enum_ptr; | |
f453ba04 | 4320 | uint64_t __user *values_ptr; |
f453ba04 | 4321 | |
fb3b06c8 DA |
4322 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4323 | return -EINVAL; | |
4324 | ||
84849903 | 4325 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4326 | property = drm_property_find(dev, out_resp->prop_id); |
4327 | if (!property) { | |
f27657f2 | 4328 | ret = -ENOENT; |
f453ba04 DA |
4329 | goto done; |
4330 | } | |
f453ba04 | 4331 | |
5ea22f24 RC |
4332 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4333 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
3758b341 | 4334 | list_for_each_entry(prop_enum, &property->enum_list, head) |
f453ba04 | 4335 | enum_count++; |
f453ba04 DA |
4336 | } |
4337 | ||
4338 | value_count = property->num_values; | |
4339 | ||
4340 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
4341 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
4342 | out_resp->flags = property->flags; | |
4343 | ||
4344 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 4345 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
4346 | for (i = 0; i < value_count; i++) { |
4347 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
4348 | ret = -EFAULT; | |
4349 | goto done; | |
4350 | } | |
4351 | } | |
4352 | } | |
4353 | out_resp->count_values = value_count; | |
4354 | ||
5ea22f24 RC |
4355 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
4356 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
4357 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
4358 | copied = 0; | |
81f6c7f8 | 4359 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
3758b341 | 4360 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
f453ba04 DA |
4361 | |
4362 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
4363 | ret = -EFAULT; | |
4364 | goto done; | |
4365 | } | |
4366 | ||
4367 | if (copy_to_user(&enum_ptr[copied].name, | |
4368 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
4369 | ret = -EFAULT; | |
4370 | goto done; | |
4371 | } | |
4372 | copied++; | |
4373 | } | |
4374 | } | |
4375 | out_resp->count_enum_blobs = enum_count; | |
4376 | } | |
4377 | ||
3758b341 DV |
4378 | /* |
4379 | * NOTE: The idea seems to have been to use this to read all the blob | |
4380 | * property values. But nothing ever added them to the corresponding | |
4381 | * list, userspace always used the special-purpose get_blob ioctl to | |
4382 | * read the value for a blob property. It also doesn't make a lot of | |
4383 | * sense to return values here when everything else is just metadata for | |
4384 | * the property itself. | |
4385 | */ | |
4386 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) | |
4387 | out_resp->count_enum_blobs = 0; | |
f453ba04 | 4388 | done: |
84849903 | 4389 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4390 | return ret; |
4391 | } | |
4392 | ||
152ef5fa DV |
4393 | static void drm_property_free_blob(struct kref *kref) |
4394 | { | |
4395 | struct drm_property_blob *blob = | |
4396 | container_of(kref, struct drm_property_blob, base.refcount); | |
4397 | ||
4398 | mutex_lock(&blob->dev->mode_config.blob_lock); | |
4399 | list_del(&blob->head_global); | |
4400 | mutex_unlock(&blob->dev->mode_config.blob_lock); | |
4401 | ||
4402 | drm_mode_object_unregister(blob->dev, &blob->base); | |
4403 | ||
4404 | kfree(blob); | |
4405 | } | |
4406 | ||
99531d9b DS |
4407 | /** |
4408 | * drm_property_create_blob - Create new blob property | |
4409 | * | |
4410 | * Creates a new blob property for a specified DRM device, optionally | |
4411 | * copying data. | |
4412 | * | |
4413 | * @dev: DRM device to create property for | |
4414 | * @length: Length to allocate for blob data | |
4415 | * @data: If specified, copies data into blob | |
10e8cb7e DS |
4416 | * |
4417 | * Returns: | |
4418 | * New blob property with a single reference on success, or an ERR_PTR | |
4419 | * value on failure. | |
99531d9b | 4420 | */ |
6bcacf51 | 4421 | struct drm_property_blob * |
ecbbe59b | 4422 | drm_property_create_blob(struct drm_device *dev, size_t length, |
12e6cecd | 4423 | const void *data) |
f453ba04 DA |
4424 | { |
4425 | struct drm_property_blob *blob; | |
6bfc56aa | 4426 | int ret; |
f453ba04 | 4427 | |
9ac0934b | 4428 | if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) |
10e8cb7e | 4429 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
4430 | |
4431 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
4432 | if (!blob) | |
10e8cb7e | 4433 | return ERR_PTR(-ENOMEM); |
f453ba04 | 4434 | |
e2f5d2ea DS |
4435 | /* This must be explicitly initialised, so we can safely call list_del |
4436 | * on it in the removal handler, even if it isn't in a file list. */ | |
4437 | INIT_LIST_HEAD(&blob->head_file); | |
8fb6e7a5 | 4438 | blob->length = length; |
6bcacf51 | 4439 | blob->dev = dev; |
8fb6e7a5 | 4440 | |
99531d9b DS |
4441 | if (data) |
4442 | memcpy(blob->data, data, length); | |
8fb6e7a5 | 4443 | |
152ef5fa DV |
4444 | ret = drm_mode_object_get_reg(dev, &blob->base, DRM_MODE_OBJECT_BLOB, |
4445 | true, drm_property_free_blob); | |
6bfc56aa VS |
4446 | if (ret) { |
4447 | kfree(blob); | |
10e8cb7e | 4448 | return ERR_PTR(-EINVAL); |
6bfc56aa VS |
4449 | } |
4450 | ||
152ef5fa | 4451 | mutex_lock(&dev->mode_config.blob_lock); |
e2f5d2ea DS |
4452 | list_add_tail(&blob->head_global, |
4453 | &dev->mode_config.property_blob_list); | |
8fb6e7a5 | 4454 | mutex_unlock(&dev->mode_config.blob_lock); |
f453ba04 | 4455 | |
f453ba04 DA |
4456 | return blob; |
4457 | } | |
6bcacf51 | 4458 | EXPORT_SYMBOL(drm_property_create_blob); |
f453ba04 | 4459 | |
6bcacf51 DS |
4460 | /** |
4461 | * drm_property_unreference_blob - Unreference a blob property | |
4462 | * | |
4463 | * Drop a reference on a blob property. May free the object. | |
4464 | * | |
f102c16e | 4465 | * @blob: Pointer to blob property |
6bcacf51 DS |
4466 | */ |
4467 | void drm_property_unreference_blob(struct drm_property_blob *blob) | |
4468 | { | |
6bcacf51 DS |
4469 | if (!blob) |
4470 | return; | |
4471 | ||
152ef5fa | 4472 | drm_mode_object_unreference(&blob->base); |
6bcacf51 DS |
4473 | } |
4474 | EXPORT_SYMBOL(drm_property_unreference_blob); | |
4475 | ||
e2f5d2ea DS |
4476 | /** |
4477 | * drm_property_destroy_user_blobs - destroy all blobs created by this client | |
4478 | * @dev: DRM device | |
4479 | * @file_priv: destroy all blobs owned by this file handle | |
4480 | */ | |
4481 | void drm_property_destroy_user_blobs(struct drm_device *dev, | |
4482 | struct drm_file *file_priv) | |
4483 | { | |
4484 | struct drm_property_blob *blob, *bt; | |
4485 | ||
152ef5fa DV |
4486 | /* |
4487 | * When the file gets released that means no one else can access the | |
4488 | * blob list any more, so no need to grab dev->blob_lock. | |
4489 | */ | |
e2f5d2ea DS |
4490 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { |
4491 | list_del_init(&blob->head_file); | |
152ef5fa | 4492 | drm_property_unreference_blob(blob); |
e2f5d2ea | 4493 | } |
e2f5d2ea DS |
4494 | } |
4495 | ||
6bcacf51 DS |
4496 | /** |
4497 | * drm_property_reference_blob - Take a reference on an existing property | |
4498 | * | |
4499 | * Take a new reference on an existing blob property. | |
4500 | * | |
f102c16e | 4501 | * @blob: Pointer to blob property |
6bcacf51 DS |
4502 | */ |
4503 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) | |
4504 | { | |
152ef5fa | 4505 | drm_mode_object_reference(&blob->base); |
6bcacf51 DS |
4506 | return blob; |
4507 | } | |
4508 | EXPORT_SYMBOL(drm_property_reference_blob); | |
4509 | ||
6bcacf51 DS |
4510 | /** |
4511 | * drm_property_lookup_blob - look up a blob property and take a reference | |
4512 | * @dev: drm device | |
4513 | * @id: id of the blob property | |
4514 | * | |
4515 | * If successful, this takes an additional reference to the blob property. | |
4516 | * callers need to make sure to eventually unreference the returned property | |
4517 | * again, using @drm_property_unreference_blob. | |
4518 | */ | |
4519 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, | |
4520 | uint32_t id) | |
4521 | { | |
152ef5fa DV |
4522 | struct drm_mode_object *obj; |
4523 | struct drm_property_blob *blob = NULL; | |
6bcacf51 | 4524 | |
152ef5fa DV |
4525 | obj = _object_find(dev, id, DRM_MODE_OBJECT_BLOB); |
4526 | if (obj) | |
4527 | blob = obj_to_blob(obj); | |
6bcacf51 DS |
4528 | return blob; |
4529 | } | |
4530 | EXPORT_SYMBOL(drm_property_lookup_blob); | |
4531 | ||
d2ed3436 DS |
4532 | /** |
4533 | * drm_property_replace_global_blob - atomically replace existing blob property | |
4534 | * @dev: drm device | |
4535 | * @replace: location of blob property pointer to be replaced | |
4536 | * @length: length of data for new blob, or 0 for no data | |
4537 | * @data: content for new blob, or NULL for no data | |
4538 | * @obj_holds_id: optional object for property holding blob ID | |
4539 | * @prop_holds_id: optional property holding blob ID | |
4540 | * @return 0 on success or error on failure | |
4541 | * | |
4542 | * This function will atomically replace a global property in the blob list, | |
4543 | * optionally updating a property which holds the ID of that property. It is | |
4544 | * guaranteed to be atomic: no caller will be allowed to see intermediate | |
4545 | * results, and either the entire operation will succeed and clean up the | |
4546 | * previous property, or it will fail and the state will be unchanged. | |
4547 | * | |
4548 | * If length is 0 or data is NULL, no new blob will be created, and the holding | |
4549 | * property, if specified, will be set to 0. | |
4550 | * | |
4551 | * Access to the replace pointer is assumed to be protected by the caller, e.g. | |
4552 | * by holding the relevant modesetting object lock for its parent. | |
4553 | * | |
4554 | * For example, a drm_connector has a 'PATH' property, which contains the ID | |
4555 | * of a blob property with the value of the MST path information. Calling this | |
4556 | * function with replace pointing to the connector's path_blob_ptr, length and | |
4557 | * data set for the new path information, obj_holds_id set to the connector's | |
4558 | * base object, and prop_holds_id set to the path property name, will perform | |
4559 | * a completely atomic update. The access to path_blob_ptr is protected by the | |
4560 | * caller holding a lock on the connector. | |
4561 | */ | |
4562 | static int drm_property_replace_global_blob(struct drm_device *dev, | |
4563 | struct drm_property_blob **replace, | |
4564 | size_t length, | |
4565 | const void *data, | |
4566 | struct drm_mode_object *obj_holds_id, | |
4567 | struct drm_property *prop_holds_id) | |
4568 | { | |
4569 | struct drm_property_blob *new_blob = NULL; | |
4570 | struct drm_property_blob *old_blob = NULL; | |
4571 | int ret; | |
4572 | ||
4573 | WARN_ON(replace == NULL); | |
4574 | ||
4575 | old_blob = *replace; | |
4576 | ||
4577 | if (length && data) { | |
4578 | new_blob = drm_property_create_blob(dev, length, data); | |
10e8cb7e DS |
4579 | if (IS_ERR(new_blob)) |
4580 | return PTR_ERR(new_blob); | |
d2ed3436 DS |
4581 | } |
4582 | ||
4583 | /* This does not need to be synchronised with blob_lock, as the | |
4584 | * get_properties ioctl locks all modesetting objects, and | |
4585 | * obj_holds_id must be locked before calling here, so we cannot | |
4586 | * have its value out of sync with the list membership modified | |
4587 | * below under blob_lock. */ | |
4588 | if (obj_holds_id) { | |
4589 | ret = drm_object_property_set_value(obj_holds_id, | |
4590 | prop_holds_id, | |
4591 | new_blob ? | |
4592 | new_blob->base.id : 0); | |
4593 | if (ret != 0) | |
4594 | goto err_created; | |
4595 | } | |
4596 | ||
ec530829 | 4597 | drm_property_unreference_blob(old_blob); |
d2ed3436 DS |
4598 | *replace = new_blob; |
4599 | ||
4600 | return 0; | |
4601 | ||
4602 | err_created: | |
6bcacf51 | 4603 | drm_property_unreference_blob(new_blob); |
d2ed3436 DS |
4604 | return ret; |
4605 | } | |
4606 | ||
c8e32cc1 DV |
4607 | /** |
4608 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
4609 | * @dev: DRM device | |
4610 | * @data: ioctl data | |
4611 | * @file_priv: DRM file info | |
4612 | * | |
4613 | * This function retrieves the contents of a blob property. The value stored in | |
4614 | * an object's blob property is just a normal modeset object id. | |
4615 | * | |
4616 | * Called by the user via ioctl. | |
4617 | * | |
4618 | * Returns: | |
1a498633 | 4619 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4620 | */ |
f453ba04 DA |
4621 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
4622 | void *data, struct drm_file *file_priv) | |
4623 | { | |
f453ba04 DA |
4624 | struct drm_mode_get_blob *out_resp = data; |
4625 | struct drm_property_blob *blob; | |
4626 | int ret = 0; | |
81f6c7f8 | 4627 | void __user *blob_ptr; |
f453ba04 | 4628 | |
fb3b06c8 DA |
4629 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4630 | return -EINVAL; | |
4631 | ||
152ef5fa DV |
4632 | blob = drm_property_lookup_blob(dev, out_resp->blob_id); |
4633 | if (!blob) | |
4634 | return -ENOENT; | |
f453ba04 DA |
4635 | |
4636 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 4637 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
4dfd909f | 4638 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
f453ba04 | 4639 | ret = -EFAULT; |
152ef5fa | 4640 | goto unref; |
f453ba04 DA |
4641 | } |
4642 | } | |
4643 | out_resp->length = blob->length; | |
152ef5fa DV |
4644 | unref: |
4645 | drm_property_unreference_blob(blob); | |
f453ba04 | 4646 | |
f453ba04 DA |
4647 | return ret; |
4648 | } | |
4649 | ||
e2f5d2ea DS |
4650 | /** |
4651 | * drm_mode_createblob_ioctl - create a new blob property | |
4652 | * @dev: DRM device | |
4653 | * @data: ioctl data | |
4654 | * @file_priv: DRM file info | |
4655 | * | |
4656 | * This function creates a new blob property with user-defined values. In order | |
4657 | * to give us sensible validation and checking when creating, rather than at | |
4658 | * every potential use, we also require a type to be provided upfront. | |
4659 | * | |
4660 | * Called by the user via ioctl. | |
4661 | * | |
4662 | * Returns: | |
4663 | * Zero on success, negative errno on failure. | |
4664 | */ | |
4665 | int drm_mode_createblob_ioctl(struct drm_device *dev, | |
4666 | void *data, struct drm_file *file_priv) | |
4667 | { | |
4668 | struct drm_mode_create_blob *out_resp = data; | |
4669 | struct drm_property_blob *blob; | |
4670 | void __user *blob_ptr; | |
4671 | int ret = 0; | |
4672 | ||
4673 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4674 | return -EINVAL; | |
4675 | ||
4676 | blob = drm_property_create_blob(dev, out_resp->length, NULL); | |
4677 | if (IS_ERR(blob)) | |
4678 | return PTR_ERR(blob); | |
4679 | ||
4680 | blob_ptr = (void __user *)(unsigned long)out_resp->data; | |
4681 | if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { | |
4682 | ret = -EFAULT; | |
4683 | goto out_blob; | |
4684 | } | |
4685 | ||
4686 | /* Dropping the lock between create_blob and our access here is safe | |
4687 | * as only the same file_priv can remove the blob; at this point, it is | |
4688 | * not associated with any file_priv. */ | |
4689 | mutex_lock(&dev->mode_config.blob_lock); | |
4690 | out_resp->blob_id = blob->base.id; | |
8731b269 | 4691 | list_add_tail(&blob->head_file, &file_priv->blobs); |
e2f5d2ea DS |
4692 | mutex_unlock(&dev->mode_config.blob_lock); |
4693 | ||
4694 | return 0; | |
4695 | ||
4696 | out_blob: | |
4697 | drm_property_unreference_blob(blob); | |
4698 | return ret; | |
4699 | } | |
4700 | ||
4701 | /** | |
4702 | * drm_mode_destroyblob_ioctl - destroy a user blob property | |
4703 | * @dev: DRM device | |
4704 | * @data: ioctl data | |
4705 | * @file_priv: DRM file info | |
4706 | * | |
4707 | * Destroy an existing user-defined blob property. | |
4708 | * | |
4709 | * Called by the user via ioctl. | |
4710 | * | |
4711 | * Returns: | |
4712 | * Zero on success, negative errno on failure. | |
4713 | */ | |
4714 | int drm_mode_destroyblob_ioctl(struct drm_device *dev, | |
4715 | void *data, struct drm_file *file_priv) | |
4716 | { | |
4717 | struct drm_mode_destroy_blob *out_resp = data; | |
4718 | struct drm_property_blob *blob = NULL, *bt; | |
4719 | bool found = false; | |
4720 | int ret = 0; | |
4721 | ||
4722 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4723 | return -EINVAL; | |
4724 | ||
152ef5fa DV |
4725 | blob = drm_property_lookup_blob(dev, out_resp->blob_id); |
4726 | if (!blob) | |
4727 | return -ENOENT; | |
e2f5d2ea | 4728 | |
152ef5fa | 4729 | mutex_lock(&dev->mode_config.blob_lock); |
e2f5d2ea DS |
4730 | /* Ensure the property was actually created by this user. */ |
4731 | list_for_each_entry(bt, &file_priv->blobs, head_file) { | |
4732 | if (bt == blob) { | |
4733 | found = true; | |
4734 | break; | |
4735 | } | |
4736 | } | |
4737 | ||
4738 | if (!found) { | |
4739 | ret = -EPERM; | |
4740 | goto err; | |
4741 | } | |
4742 | ||
4743 | /* We must drop head_file here, because we may not be the last | |
4744 | * reference on the blob. */ | |
4745 | list_del_init(&blob->head_file); | |
e2f5d2ea DS |
4746 | mutex_unlock(&dev->mode_config.blob_lock); |
4747 | ||
152ef5fa DV |
4748 | /* One reference from lookup, and one from the filp. */ |
4749 | drm_property_unreference_blob(blob); | |
4750 | drm_property_unreference_blob(blob); | |
4751 | ||
e2f5d2ea DS |
4752 | return 0; |
4753 | ||
4754 | err: | |
4755 | mutex_unlock(&dev->mode_config.blob_lock); | |
152ef5fa DV |
4756 | drm_property_unreference_blob(blob); |
4757 | ||
e2f5d2ea DS |
4758 | return ret; |
4759 | } | |
4760 | ||
cc7096fb DA |
4761 | /** |
4762 | * drm_mode_connector_set_path_property - set tile property on connector | |
4763 | * @connector: connector to set property on. | |
d2ed3436 | 4764 | * @path: path to use for property; must not be NULL. |
cc7096fb DA |
4765 | * |
4766 | * This creates a property to expose to userspace to specify a | |
4767 | * connector path. This is mainly used for DisplayPort MST where | |
4768 | * connectors have a topology and we want to allow userspace to give | |
4769 | * them more meaningful names. | |
4770 | * | |
4771 | * Returns: | |
1a498633 | 4772 | * Zero on success, negative errno on failure. |
cc7096fb | 4773 | */ |
43aba7eb | 4774 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
12e6cecd | 4775 | const char *path) |
43aba7eb DA |
4776 | { |
4777 | struct drm_device *dev = connector->dev; | |
ecbbe59b | 4778 | int ret; |
43aba7eb | 4779 | |
d2ed3436 DS |
4780 | ret = drm_property_replace_global_blob(dev, |
4781 | &connector->path_blob_ptr, | |
4782 | strlen(path) + 1, | |
4783 | path, | |
4784 | &connector->base, | |
4785 | dev->mode_config.path_property); | |
43aba7eb DA |
4786 | return ret; |
4787 | } | |
4788 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4789 | ||
6f134d7b DA |
4790 | /** |
4791 | * drm_mode_connector_set_tile_property - set tile property on connector | |
4792 | * @connector: connector to set property on. | |
4793 | * | |
4794 | * This looks up the tile information for a connector, and creates a | |
4795 | * property for userspace to parse if it exists. The property is of | |
4796 | * the form of 8 integers using ':' as a separator. | |
4797 | * | |
4798 | * Returns: | |
4799 | * Zero on success, errno on failure. | |
4800 | */ | |
4801 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
4802 | { | |
4803 | struct drm_device *dev = connector->dev; | |
6f134d7b | 4804 | char tile[256]; |
d2ed3436 | 4805 | int ret; |
6f134d7b DA |
4806 | |
4807 | if (!connector->has_tile) { | |
d2ed3436 DS |
4808 | ret = drm_property_replace_global_blob(dev, |
4809 | &connector->tile_blob_ptr, | |
4810 | 0, | |
4811 | NULL, | |
4812 | &connector->base, | |
4813 | dev->mode_config.tile_property); | |
6f134d7b DA |
4814 | return ret; |
4815 | } | |
4816 | ||
4817 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
4818 | connector->tile_group->id, connector->tile_is_single_monitor, | |
4819 | connector->num_h_tile, connector->num_v_tile, | |
4820 | connector->tile_h_loc, connector->tile_v_loc, | |
4821 | connector->tile_h_size, connector->tile_v_size); | |
6f134d7b | 4822 | |
d2ed3436 DS |
4823 | ret = drm_property_replace_global_blob(dev, |
4824 | &connector->tile_blob_ptr, | |
4825 | strlen(tile) + 1, | |
4826 | tile, | |
4827 | &connector->base, | |
4828 | dev->mode_config.tile_property); | |
6f134d7b DA |
4829 | return ret; |
4830 | } | |
4831 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
4832 | ||
c8e32cc1 DV |
4833 | /** |
4834 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4835 | * @connector: drm connector | |
4836 | * @edid: new value of the edid property | |
4837 | * | |
4838 | * This function creates a new blob modeset object and assigns its id to the | |
4839 | * connector's edid property. | |
4840 | * | |
4841 | * Returns: | |
1a498633 | 4842 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4843 | */ |
f453ba04 | 4844 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
12e6cecd | 4845 | const struct edid *edid) |
f453ba04 DA |
4846 | { |
4847 | struct drm_device *dev = connector->dev; | |
d2ed3436 | 4848 | size_t size = 0; |
ecbbe59b | 4849 | int ret; |
f453ba04 | 4850 | |
4cf2b281 TW |
4851 | /* ignore requests to set edid when overridden */ |
4852 | if (connector->override_edid) | |
4853 | return 0; | |
4854 | ||
d2ed3436 | 4855 | if (edid) |
e24ff467 | 4856 | size = EDID_LENGTH * (1 + edid->extensions); |
f453ba04 | 4857 | |
d2ed3436 DS |
4858 | ret = drm_property_replace_global_blob(dev, |
4859 | &connector->edid_blob_ptr, | |
4860 | size, | |
4861 | edid, | |
4862 | &connector->base, | |
4863 | dev->mode_config.edid_property); | |
f453ba04 DA |
4864 | return ret; |
4865 | } | |
4866 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4867 | ||
3843e71f RC |
4868 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
4869 | * need special locking to handle lifetime issues (ie. to ensure the prop | |
4870 | * value doesn't become invalid part way through the property update due to | |
4871 | * race). The value returned by reference via 'obj' should be passed back | |
4872 | * to drm_property_change_valid_put() after the property is set (and the | |
4873 | * object to which the property is attached has a chance to take it's own | |
4874 | * reference). | |
4875 | */ | |
d34f20d6 | 4876 | bool drm_property_change_valid_get(struct drm_property *property, |
3843e71f | 4877 | uint64_t value, struct drm_mode_object **ref) |
26a34815 | 4878 | { |
2ca651d1 TR |
4879 | int i; |
4880 | ||
26a34815 PZ |
4881 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
4882 | return false; | |
5ea22f24 | 4883 | |
3843e71f RC |
4884 | *ref = NULL; |
4885 | ||
5ea22f24 | 4886 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
26a34815 PZ |
4887 | if (value < property->values[0] || value > property->values[1]) |
4888 | return false; | |
4889 | return true; | |
ebc44cf3 RC |
4890 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4891 | int64_t svalue = U642I64(value); | |
4dfd909f | 4892 | |
ebc44cf3 RC |
4893 | if (svalue < U642I64(property->values[0]) || |
4894 | svalue > U642I64(property->values[1])) | |
4895 | return false; | |
4896 | return true; | |
5ea22f24 | 4897 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
592c20ee | 4898 | uint64_t valid_mask = 0; |
4dfd909f | 4899 | |
49e27545 RC |
4900 | for (i = 0; i < property->num_values; i++) |
4901 | valid_mask |= (1ULL << property->values[i]); | |
4902 | return !(value & ~valid_mask); | |
5ea22f24 | 4903 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
6bcacf51 DS |
4904 | struct drm_property_blob *blob; |
4905 | ||
4906 | if (value == 0) | |
4907 | return true; | |
4908 | ||
4909 | blob = drm_property_lookup_blob(property->dev, value); | |
4910 | if (blob) { | |
4911 | *ref = &blob->base; | |
4912 | return true; | |
4913 | } else { | |
4914 | return false; | |
4915 | } | |
98f75de4 | 4916 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
98f75de4 RC |
4917 | /* a zero value for an object property translates to null: */ |
4918 | if (value == 0) | |
4919 | return true; | |
3843e71f | 4920 | |
1e8985a8 TV |
4921 | *ref = _object_find(property->dev, value, property->values[0]); |
4922 | return *ref != NULL; | |
26a34815 | 4923 | } |
2ca651d1 TR |
4924 | |
4925 | for (i = 0; i < property->num_values; i++) | |
4926 | if (property->values[i] == value) | |
4927 | return true; | |
4928 | return false; | |
26a34815 PZ |
4929 | } |
4930 | ||
d34f20d6 | 4931 | void drm_property_change_valid_put(struct drm_property *property, |
3843e71f RC |
4932 | struct drm_mode_object *ref) |
4933 | { | |
4934 | if (!ref) | |
4935 | return; | |
4936 | ||
4937 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { | |
027b3f8b | 4938 | drm_mode_object_unreference(ref); |
da9b2a38 DS |
4939 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
4940 | drm_property_unreference_blob(obj_to_blob(ref)); | |
3843e71f RC |
4941 | } |
4942 | ||
c8e32cc1 DV |
4943 | /** |
4944 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4945 | * @dev: DRM device | |
4946 | * @data: ioctl data | |
4947 | * @file_priv: DRM file info | |
4948 | * | |
4949 | * This function sets the current value for a connectors's property. It also | |
4950 | * calls into a driver's ->set_property callback to update the hardware state | |
4951 | * | |
4952 | * Called by the user via ioctl. | |
4953 | * | |
4954 | * Returns: | |
1a498633 | 4955 | * Zero on success, negative errno on failure. |
c8e32cc1 | 4956 | */ |
f453ba04 DA |
4957 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4958 | void *data, struct drm_file *file_priv) | |
4959 | { | |
0057d8dd PZ |
4960 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4961 | struct drm_mode_obj_set_property obj_set_prop = { | |
4962 | .value = conn_set_prop->value, | |
4963 | .prop_id = conn_set_prop->prop_id, | |
4964 | .obj_id = conn_set_prop->connector_id, | |
4965 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4966 | }; | |
fb3b06c8 | 4967 | |
0057d8dd PZ |
4968 | /* It does all the locking and checking we need */ |
4969 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4970 | } |
4971 | ||
c543188a PZ |
4972 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4973 | struct drm_property *property, | |
4974 | uint64_t value) | |
4975 | { | |
4976 | int ret = -EINVAL; | |
4977 | struct drm_connector *connector = obj_to_connector(obj); | |
4978 | ||
4979 | /* Do DPMS ourselves */ | |
4980 | if (property == connector->dev->mode_config.dpms_property) { | |
3558c112 | 4981 | ret = (*connector->funcs->dpms)(connector, (int)value); |
c543188a PZ |
4982 | } else if (connector->funcs->set_property) |
4983 | ret = connector->funcs->set_property(connector, property, value); | |
4984 | ||
4985 | /* store the property value if successful */ | |
4986 | if (!ret) | |
58495563 | 4987 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4988 | return ret; |
4989 | } | |
4990 | ||
bffd9de0 PZ |
4991 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4992 | struct drm_property *property, | |
4993 | uint64_t value) | |
4994 | { | |
4995 | int ret = -EINVAL; | |
4996 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4997 | ||
4998 | if (crtc->funcs->set_property) | |
4999 | ret = crtc->funcs->set_property(crtc, property, value); | |
5000 | if (!ret) | |
5001 | drm_object_property_set_value(obj, property, value); | |
5002 | ||
5003 | return ret; | |
5004 | } | |
5005 | ||
3a5f87c2 TW |
5006 | /** |
5007 | * drm_mode_plane_set_obj_prop - set the value of a property | |
5008 | * @plane: drm plane object to set property value for | |
5009 | * @property: property to set | |
5010 | * @value: value the property should be set to | |
5011 | * | |
5012 | * This functions sets a given property on a given plane object. This function | |
5013 | * calls the driver's ->set_property callback and changes the software state of | |
5014 | * the property if the callback succeeds. | |
5015 | * | |
5016 | * Returns: | |
5017 | * Zero on success, error code on failure. | |
5018 | */ | |
5019 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
5020 | struct drm_property *property, | |
5021 | uint64_t value) | |
4d93914a RC |
5022 | { |
5023 | int ret = -EINVAL; | |
3a5f87c2 | 5024 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
5025 | |
5026 | if (plane->funcs->set_property) | |
5027 | ret = plane->funcs->set_property(plane, property, value); | |
5028 | if (!ret) | |
5029 | drm_object_property_set_value(obj, property, value); | |
5030 | ||
5031 | return ret; | |
5032 | } | |
3a5f87c2 | 5033 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 5034 | |
c8e32cc1 | 5035 | /** |
1a498633 | 5036 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
c8e32cc1 DV |
5037 | * @dev: DRM device |
5038 | * @data: ioctl data | |
5039 | * @file_priv: DRM file info | |
5040 | * | |
5041 | * This function retrieves the current value for an object's property. Compared | |
5042 | * to the connector specific ioctl this one is extended to also work on crtc and | |
5043 | * plane objects. | |
5044 | * | |
5045 | * Called by the user via ioctl. | |
5046 | * | |
5047 | * Returns: | |
1a498633 | 5048 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5049 | */ |
c543188a PZ |
5050 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
5051 | struct drm_file *file_priv) | |
5052 | { | |
5053 | struct drm_mode_obj_get_properties *arg = data; | |
5054 | struct drm_mode_object *obj; | |
5055 | int ret = 0; | |
c543188a PZ |
5056 | |
5057 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
5058 | return -EINVAL; | |
5059 | ||
84849903 | 5060 | drm_modeset_lock_all(dev); |
c543188a PZ |
5061 | |
5062 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
5063 | if (!obj) { | |
f27657f2 | 5064 | ret = -ENOENT; |
c543188a PZ |
5065 | goto out; |
5066 | } | |
5067 | if (!obj->properties) { | |
5068 | ret = -EINVAL; | |
1649c33b | 5069 | goto out_unref; |
c543188a PZ |
5070 | } |
5071 | ||
88a48e29 | 5072 | ret = get_properties(obj, file_priv->atomic, |
95cbf110 RC |
5073 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
5074 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), | |
5075 | &arg->count_props); | |
c543188a | 5076 | |
1649c33b DV |
5077 | out_unref: |
5078 | drm_mode_object_unreference(obj); | |
c543188a | 5079 | out: |
84849903 | 5080 | drm_modeset_unlock_all(dev); |
c543188a PZ |
5081 | return ret; |
5082 | } | |
5083 | ||
c8e32cc1 DV |
5084 | /** |
5085 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
5086 | * @dev: DRM device | |
5087 | * @data: ioctl data | |
5088 | * @file_priv: DRM file info | |
5089 | * | |
5090 | * This function sets the current value for an object's property. It also calls | |
5091 | * into a driver's ->set_property callback to update the hardware state. | |
5092 | * Compared to the connector specific ioctl this one is extended to also work on | |
5093 | * crtc and plane objects. | |
5094 | * | |
5095 | * Called by the user via ioctl. | |
5096 | * | |
5097 | * Returns: | |
1a498633 | 5098 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5099 | */ |
c543188a PZ |
5100 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
5101 | struct drm_file *file_priv) | |
5102 | { | |
5103 | struct drm_mode_obj_set_property *arg = data; | |
5104 | struct drm_mode_object *arg_obj; | |
5105 | struct drm_mode_object *prop_obj; | |
5106 | struct drm_property *property; | |
3843e71f RC |
5107 | int i, ret = -EINVAL; |
5108 | struct drm_mode_object *ref; | |
c543188a PZ |
5109 | |
5110 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
5111 | return -EINVAL; | |
5112 | ||
84849903 | 5113 | drm_modeset_lock_all(dev); |
c543188a PZ |
5114 | |
5115 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
5116 | if (!arg_obj) { |
5117 | ret = -ENOENT; | |
c543188a | 5118 | goto out; |
f27657f2 | 5119 | } |
c543188a | 5120 | if (!arg_obj->properties) |
1649c33b | 5121 | goto out_unref; |
c543188a | 5122 | |
7f88a9be | 5123 | for (i = 0; i < arg_obj->properties->count; i++) |
b17cd757 | 5124 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
c543188a PZ |
5125 | break; |
5126 | ||
7f88a9be | 5127 | if (i == arg_obj->properties->count) |
1649c33b | 5128 | goto out_unref; |
c543188a PZ |
5129 | |
5130 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
5131 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
5132 | if (!prop_obj) { |
5133 | ret = -ENOENT; | |
1649c33b | 5134 | goto out_unref; |
f27657f2 | 5135 | } |
c543188a PZ |
5136 | property = obj_to_property(prop_obj); |
5137 | ||
3843e71f | 5138 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
b164d31f | 5139 | goto out_unref; |
c543188a PZ |
5140 | |
5141 | switch (arg_obj->type) { | |
5142 | case DRM_MODE_OBJECT_CONNECTOR: | |
5143 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
5144 | arg->value); | |
5145 | break; | |
bffd9de0 PZ |
5146 | case DRM_MODE_OBJECT_CRTC: |
5147 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
5148 | break; | |
4d93914a | 5149 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
5150 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
5151 | property, arg->value); | |
4d93914a | 5152 | break; |
c543188a PZ |
5153 | } |
5154 | ||
3843e71f RC |
5155 | drm_property_change_valid_put(property, ref); |
5156 | ||
1649c33b DV |
5157 | out_unref: |
5158 | drm_mode_object_unreference(arg_obj); | |
c543188a | 5159 | out: |
84849903 | 5160 | drm_modeset_unlock_all(dev); |
c543188a PZ |
5161 | return ret; |
5162 | } | |
5163 | ||
c8e32cc1 DV |
5164 | /** |
5165 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
5166 | * @connector: connector to attach | |
5167 | * @encoder: encoder to attach @connector to | |
5168 | * | |
5169 | * This function links up a connector to an encoder. Note that the routing | |
5170 | * restrictions between encoders and crtcs are exposed to userspace through the | |
5171 | * possible_clones and possible_crtcs bitmasks. | |
5172 | * | |
5173 | * Returns: | |
1a498633 | 5174 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5175 | */ |
f453ba04 DA |
5176 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
5177 | struct drm_encoder *encoder) | |
5178 | { | |
5179 | int i; | |
5180 | ||
eb47fe80 TR |
5181 | /* |
5182 | * In the past, drivers have attempted to model the static association | |
5183 | * of connector to encoder in simple connector/encoder devices using a | |
5184 | * direct assignment of connector->encoder = encoder. This connection | |
5185 | * is a logical one and the responsibility of the core, so drivers are | |
5186 | * expected not to mess with this. | |
5187 | * | |
5188 | * Note that the error return should've been enough here, but a large | |
5189 | * majority of drivers ignores the return value, so add in a big WARN | |
5190 | * to get people's attention. | |
5191 | */ | |
5192 | if (WARN_ON(connector->encoder)) | |
5193 | return -EINVAL; | |
5194 | ||
f453ba04 DA |
5195 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
5196 | if (connector->encoder_ids[i] == 0) { | |
5197 | connector->encoder_ids[i] = encoder->base.id; | |
5198 | return 0; | |
5199 | } | |
5200 | } | |
5201 | return -ENOMEM; | |
5202 | } | |
5203 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
5204 | ||
c8e32cc1 DV |
5205 | /** |
5206 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
5207 | * @crtc: CRTC to set the gamma table size for | |
5208 | * @gamma_size: size of the gamma table | |
5209 | * | |
5210 | * Drivers which support gamma tables should set this to the supported gamma | |
5211 | * table size when initializing the CRTC. Currently the drm core only supports a | |
5212 | * fixed gamma table size. | |
5213 | * | |
5214 | * Returns: | |
1a498633 | 5215 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5216 | */ |
4cae5b84 | 5217 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 5218 | int gamma_size) |
f453ba04 | 5219 | { |
cf48e292 DV |
5220 | uint16_t *r_base, *g_base, *b_base; |
5221 | int i; | |
5222 | ||
f453ba04 DA |
5223 | crtc->gamma_size = gamma_size; |
5224 | ||
bd3f0ff9 TR |
5225 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
5226 | GFP_KERNEL); | |
f453ba04 DA |
5227 | if (!crtc->gamma_store) { |
5228 | crtc->gamma_size = 0; | |
4cae5b84 | 5229 | return -ENOMEM; |
f453ba04 DA |
5230 | } |
5231 | ||
cf48e292 DV |
5232 | r_base = crtc->gamma_store; |
5233 | g_base = r_base + gamma_size; | |
5234 | b_base = g_base + gamma_size; | |
5235 | for (i = 0; i < gamma_size; i++) { | |
5236 | r_base[i] = i << 8; | |
5237 | g_base[i] = i << 8; | |
5238 | b_base[i] = i << 8; | |
5239 | } | |
5240 | ||
5241 | ||
4cae5b84 | 5242 | return 0; |
f453ba04 DA |
5243 | } |
5244 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
5245 | ||
c8e32cc1 DV |
5246 | /** |
5247 | * drm_mode_gamma_set_ioctl - set the gamma table | |
5248 | * @dev: DRM device | |
5249 | * @data: ioctl data | |
5250 | * @file_priv: DRM file info | |
5251 | * | |
5252 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
5253 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
5254 | * | |
5255 | * Called by the user via ioctl. | |
5256 | * | |
5257 | * Returns: | |
1a498633 | 5258 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5259 | */ |
f453ba04 DA |
5260 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
5261 | void *data, struct drm_file *file_priv) | |
5262 | { | |
5263 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5264 | struct drm_crtc *crtc; |
5265 | void *r_base, *g_base, *b_base; | |
5266 | int size; | |
5267 | int ret = 0; | |
5268 | ||
fb3b06c8 DA |
5269 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5270 | return -EINVAL; | |
5271 | ||
84849903 | 5272 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5273 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5274 | if (!crtc) { | |
f27657f2 | 5275 | ret = -ENOENT; |
f453ba04 DA |
5276 | goto out; |
5277 | } | |
f453ba04 | 5278 | |
ebe0f244 LP |
5279 | if (crtc->funcs->gamma_set == NULL) { |
5280 | ret = -ENOSYS; | |
5281 | goto out; | |
5282 | } | |
5283 | ||
f453ba04 DA |
5284 | /* memcpy into gamma store */ |
5285 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5286 | ret = -EINVAL; | |
5287 | goto out; | |
5288 | } | |
5289 | ||
5290 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5291 | r_base = crtc->gamma_store; | |
5292 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
5293 | ret = -EFAULT; | |
5294 | goto out; | |
5295 | } | |
5296 | ||
5297 | g_base = r_base + size; | |
5298 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
5299 | ret = -EFAULT; | |
5300 | goto out; | |
5301 | } | |
5302 | ||
5303 | b_base = g_base + size; | |
5304 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
5305 | ret = -EFAULT; | |
5306 | goto out; | |
5307 | } | |
5308 | ||
7ea77283 | 5309 | ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); |
f453ba04 DA |
5310 | |
5311 | out: | |
84849903 | 5312 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5313 | return ret; |
5314 | ||
5315 | } | |
5316 | ||
c8e32cc1 DV |
5317 | /** |
5318 | * drm_mode_gamma_get_ioctl - get the gamma table | |
5319 | * @dev: DRM device | |
5320 | * @data: ioctl data | |
5321 | * @file_priv: DRM file info | |
5322 | * | |
5323 | * Copy the current gamma table into the storage provided. This also provides | |
5324 | * the gamma table size the driver expects, which can be used to size the | |
5325 | * allocated storage. | |
5326 | * | |
5327 | * Called by the user via ioctl. | |
5328 | * | |
5329 | * Returns: | |
1a498633 | 5330 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5331 | */ |
f453ba04 DA |
5332 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
5333 | void *data, struct drm_file *file_priv) | |
5334 | { | |
5335 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
5336 | struct drm_crtc *crtc; |
5337 | void *r_base, *g_base, *b_base; | |
5338 | int size; | |
5339 | int ret = 0; | |
5340 | ||
fb3b06c8 DA |
5341 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
5342 | return -EINVAL; | |
5343 | ||
84849903 | 5344 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
5345 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
5346 | if (!crtc) { | |
f27657f2 | 5347 | ret = -ENOENT; |
f453ba04 DA |
5348 | goto out; |
5349 | } | |
f453ba04 DA |
5350 | |
5351 | /* memcpy into gamma store */ | |
5352 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
5353 | ret = -EINVAL; | |
5354 | goto out; | |
5355 | } | |
5356 | ||
5357 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
5358 | r_base = crtc->gamma_store; | |
5359 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
5360 | ret = -EFAULT; | |
5361 | goto out; | |
5362 | } | |
5363 | ||
5364 | g_base = r_base + size; | |
5365 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
5366 | ret = -EFAULT; | |
5367 | goto out; | |
5368 | } | |
5369 | ||
5370 | b_base = g_base + size; | |
5371 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
5372 | ret = -EFAULT; | |
5373 | goto out; | |
5374 | } | |
5375 | out: | |
84849903 | 5376 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
5377 | return ret; |
5378 | } | |
d91d8a3f | 5379 | |
c8e32cc1 DV |
5380 | /** |
5381 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
5382 | * @dev: DRM device | |
5383 | * @data: ioctl data | |
5384 | * @file_priv: DRM file info | |
5385 | * | |
5386 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
5387 | * Optionally a drm event is generated to signal the completion of the event. | |
5388 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
5389 | * properties (including driver specific metadata like tiling layout) will work, | |
5390 | * but some drivers support e.g. pixel format changes through the pageflip | |
5391 | * ioctl. | |
5392 | * | |
5393 | * Called by the user via ioctl. | |
5394 | * | |
5395 | * Returns: | |
1a498633 | 5396 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5397 | */ |
d91d8a3f KH |
5398 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
5399 | void *data, struct drm_file *file_priv) | |
5400 | { | |
5401 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 5402 | struct drm_crtc *crtc; |
3d30a59b | 5403 | struct drm_framebuffer *fb = NULL; |
d91d8a3f | 5404 | struct drm_pending_vblank_event *e = NULL; |
d91d8a3f KH |
5405 | int ret = -EINVAL; |
5406 | ||
5407 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
5408 | page_flip->reserved != 0) | |
5409 | return -EINVAL; | |
5410 | ||
62f2104f KP |
5411 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
5412 | return -EINVAL; | |
5413 | ||
a2b34e22 RC |
5414 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
5415 | if (!crtc) | |
f27657f2 | 5416 | return -ENOENT; |
d91d8a3f | 5417 | |
4d02e2de | 5418 | drm_modeset_lock_crtc(crtc, crtc->primary); |
f4510a27 | 5419 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
5420 | /* The framebuffer is currently unbound, presumably |
5421 | * due to a hotplug event, that userspace has not | |
5422 | * yet discovered. | |
5423 | */ | |
5424 | ret = -EBUSY; | |
5425 | goto out; | |
5426 | } | |
5427 | ||
d91d8a3f KH |
5428 | if (crtc->funcs->page_flip == NULL) |
5429 | goto out; | |
5430 | ||
786b99ed | 5431 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
5432 | if (!fb) { |
5433 | ret = -ENOENT; | |
d91d8a3f | 5434 | goto out; |
37c4e705 | 5435 | } |
d91d8a3f | 5436 | |
2afa701d VS |
5437 | if (crtc->state) { |
5438 | const struct drm_plane_state *state = crtc->primary->state; | |
5439 | ||
5440 | ret = check_src_coords(state->src_x, state->src_y, | |
5441 | state->src_w, state->src_h, fb); | |
5442 | } else { | |
5443 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); | |
5444 | } | |
c11e9283 | 5445 | if (ret) |
5f61bb42 | 5446 | goto out; |
5f61bb42 | 5447 | |
f4510a27 | 5448 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
5449 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
5450 | ret = -EINVAL; | |
5451 | goto out; | |
5452 | } | |
5453 | ||
d91d8a3f | 5454 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
2dd500f1 DV |
5455 | e = kzalloc(sizeof *e, GFP_KERNEL); |
5456 | if (!e) { | |
5457 | ret = -ENOMEM; | |
d91d8a3f KH |
5458 | goto out; |
5459 | } | |
7bd4d7be | 5460 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
f76511b9 | 5461 | e->event.base.length = sizeof(e->event); |
d91d8a3f | 5462 | e->event.user_data = page_flip->user_data; |
2dd500f1 DV |
5463 | ret = drm_event_reserve_init(dev, file_priv, &e->base, &e->event.base); |
5464 | if (ret) { | |
5465 | kfree(e); | |
5466 | goto out; | |
5467 | } | |
d91d8a3f KH |
5468 | } |
5469 | ||
3d30a59b | 5470 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 5471 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 5472 | if (ret) { |
2dd500f1 DV |
5473 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) |
5474 | drm_event_cancel_free(dev, &e->base); | |
b0d12325 | 5475 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 5476 | crtc->primary->old_fb = NULL; |
b0d12325 | 5477 | } else { |
3cb43cc0 | 5478 | crtc->primary->fb = fb; |
b0d12325 DV |
5479 | /* Unref only the old framebuffer. */ |
5480 | fb = NULL; | |
d91d8a3f KH |
5481 | } |
5482 | ||
5483 | out: | |
b0d12325 DV |
5484 | if (fb) |
5485 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
5486 | if (crtc->primary->old_fb) |
5487 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
5488 | crtc->primary->old_fb = NULL; | |
d059f652 | 5489 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 5490 | |
d91d8a3f KH |
5491 | return ret; |
5492 | } | |
eb033556 | 5493 | |
c8e32cc1 DV |
5494 | /** |
5495 | * drm_mode_config_reset - call ->reset callbacks | |
5496 | * @dev: drm device | |
5497 | * | |
5498 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
5499 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
5500 | * reset hardware and software state. | |
5501 | */ | |
eb033556 CW |
5502 | void drm_mode_config_reset(struct drm_device *dev) |
5503 | { | |
5504 | struct drm_crtc *crtc; | |
2a0d7cfd | 5505 | struct drm_plane *plane; |
eb033556 CW |
5506 | struct drm_encoder *encoder; |
5507 | struct drm_connector *connector; | |
5508 | ||
e4f62546 | 5509 | drm_for_each_plane(plane, dev) |
2a0d7cfd DV |
5510 | if (plane->funcs->reset) |
5511 | plane->funcs->reset(plane); | |
5512 | ||
e4f62546 | 5513 | drm_for_each_crtc(crtc, dev) |
eb033556 CW |
5514 | if (crtc->funcs->reset) |
5515 | crtc->funcs->reset(crtc); | |
5516 | ||
e4f62546 | 5517 | drm_for_each_encoder(encoder, dev) |
eb033556 CW |
5518 | if (encoder->funcs->reset) |
5519 | encoder->funcs->reset(encoder); | |
5520 | ||
f8c2ba31 | 5521 | mutex_lock(&dev->mode_config.mutex); |
4eebf60b | 5522 | drm_for_each_connector(connector, dev) |
eb033556 CW |
5523 | if (connector->funcs->reset) |
5524 | connector->funcs->reset(connector); | |
f8c2ba31 | 5525 | mutex_unlock(&dev->mode_config.mutex); |
eb033556 CW |
5526 | } |
5527 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 5528 | |
c8e32cc1 DV |
5529 | /** |
5530 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
5531 | * @dev: DRM device | |
5532 | * @data: ioctl data | |
5533 | * @file_priv: DRM file info | |
5534 | * | |
5535 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
5536 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
5537 | * handle can then be wrapped up into a framebuffer modeset object. | |
5538 | * | |
5539 | * Note that userspace is not allowed to use such objects for render | |
5540 | * acceleration - drivers must create their own private ioctls for such a use | |
5541 | * case. | |
5542 | * | |
5543 | * Called by the user via ioctl. | |
5544 | * | |
5545 | * Returns: | |
1a498633 | 5546 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5547 | */ |
ff72145b DA |
5548 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
5549 | void *data, struct drm_file *file_priv) | |
5550 | { | |
5551 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 5552 | u32 cpp, stride, size; |
ff72145b DA |
5553 | |
5554 | if (!dev->driver->dumb_create) | |
5555 | return -ENOSYS; | |
b28cd41f DH |
5556 | if (!args->width || !args->height || !args->bpp) |
5557 | return -EINVAL; | |
5558 | ||
5559 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 5560 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 5561 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 5562 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
5563 | return -EINVAL; |
5564 | stride = cpp * args->width; | |
5565 | if (args->height > 0xffffffffU / stride) | |
5566 | return -EINVAL; | |
5567 | ||
5568 | /* test for wrap-around */ | |
5569 | size = args->height * stride; | |
5570 | if (PAGE_ALIGN(size) == 0) | |
5571 | return -EINVAL; | |
5572 | ||
f6085952 TR |
5573 | /* |
5574 | * handle, pitch and size are output parameters. Zero them out to | |
5575 | * prevent drivers from accidentally using uninitialized data. Since | |
5576 | * not all existing userspace is clearing these fields properly we | |
5577 | * cannot reject IOCTL with garbage in them. | |
5578 | */ | |
5579 | args->handle = 0; | |
5580 | args->pitch = 0; | |
5581 | args->size = 0; | |
5582 | ||
ff72145b DA |
5583 | return dev->driver->dumb_create(file_priv, dev, args); |
5584 | } | |
5585 | ||
c8e32cc1 DV |
5586 | /** |
5587 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
5588 | * @dev: DRM device | |
5589 | * @data: ioctl data | |
5590 | * @file_priv: DRM file info | |
5591 | * | |
5592 | * Allocate an offset in the drm device node's address space to be able to | |
5593 | * memory map a dumb buffer. | |
5594 | * | |
5595 | * Called by the user via ioctl. | |
5596 | * | |
5597 | * Returns: | |
1a498633 | 5598 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5599 | */ |
ff72145b DA |
5600 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
5601 | void *data, struct drm_file *file_priv) | |
5602 | { | |
5603 | struct drm_mode_map_dumb *args = data; | |
5604 | ||
5605 | /* call driver ioctl to get mmap offset */ | |
5606 | if (!dev->driver->dumb_map_offset) | |
5607 | return -ENOSYS; | |
5608 | ||
5609 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
5610 | } | |
5611 | ||
c8e32cc1 DV |
5612 | /** |
5613 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
5614 | * @dev: DRM device | |
5615 | * @data: ioctl data | |
5616 | * @file_priv: DRM file info | |
5617 | * | |
5618 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
5619 | * Since buffer objects must be reference counted in the kernel a buffer object | |
5620 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
5621 | * | |
5622 | * Called by the user via ioctl. | |
5623 | * | |
5624 | * Returns: | |
1a498633 | 5625 | * Zero on success, negative errno on failure. |
c8e32cc1 | 5626 | */ |
ff72145b DA |
5627 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
5628 | void *data, struct drm_file *file_priv) | |
5629 | { | |
5630 | struct drm_mode_destroy_dumb *args = data; | |
5631 | ||
5632 | if (!dev->driver->dumb_destroy) | |
5633 | return -ENOSYS; | |
5634 | ||
5635 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
5636 | } | |
248dbc23 | 5637 | |
3c9855f6 VS |
5638 | /** |
5639 | * drm_rotation_simplify() - Try to simplify the rotation | |
5640 | * @rotation: Rotation to be simplified | |
5641 | * @supported_rotations: Supported rotations | |
5642 | * | |
5643 | * Attempt to simplify the rotation to a form that is supported. | |
5644 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5645 | * one could call this function like this: | |
5646 | * | |
5647 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5648 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5649 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5650 | * | |
5651 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5652 | * transforms the hardware supports, this function may not | |
5653 | * be able to produce a supported transform, so the caller should | |
5654 | * check the result afterwards. | |
5655 | */ | |
5656 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5657 | unsigned int supported_rotations) | |
5658 | { | |
5659 | if (rotation & ~supported_rotations) { | |
5660 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
14152c8d JL |
5661 | rotation = (rotation & DRM_REFLECT_MASK) | |
5662 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); | |
3c9855f6 VS |
5663 | } |
5664 | ||
5665 | return rotation; | |
5666 | } | |
5667 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5668 | ||
87d24fc3 LP |
5669 | /** |
5670 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5671 | * @dev: DRM device | |
5672 | * | |
5673 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5674 | * configuration of @dev. | |
5675 | * | |
5676 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5677 | * problem, since this should happen single threaded at init time. It is the | |
5678 | * driver's problem to ensure this guarantee. | |
5679 | * | |
5680 | */ | |
5681 | void drm_mode_config_init(struct drm_device *dev) | |
5682 | { | |
5683 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5684 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5685 | mutex_init(&dev->mode_config.idr_mutex); |
5686 | mutex_init(&dev->mode_config.fb_lock); | |
8fb6e7a5 | 5687 | mutex_init(&dev->mode_config.blob_lock); |
87d24fc3 LP |
5688 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
5689 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5690 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
5691 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
5692 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5693 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5694 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5695 | idr_init(&dev->mode_config.crtc_idr); | |
138f9ebb | 5696 | idr_init(&dev->mode_config.tile_idr); |
5fff80bb | 5697 | ida_init(&dev->mode_config.connector_ida); |
87d24fc3 LP |
5698 | |
5699 | drm_modeset_lock_all(dev); | |
6b4959f4 | 5700 | drm_mode_create_standard_properties(dev); |
87d24fc3 LP |
5701 | drm_modeset_unlock_all(dev); |
5702 | ||
5703 | /* Just to be sure */ | |
5704 | dev->mode_config.num_fb = 0; | |
5705 | dev->mode_config.num_connector = 0; | |
5706 | dev->mode_config.num_crtc = 0; | |
5707 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5708 | dev->mode_config.num_overlay_plane = 0; |
5709 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5710 | } |
5711 | EXPORT_SYMBOL(drm_mode_config_init); | |
5712 | ||
5713 | /** | |
5714 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5715 | * @dev: DRM device | |
5716 | * | |
5717 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5718 | * free up the framebuffers and associated buffer objects. | |
5719 | * | |
5720 | * Note that since this /should/ happen single-threaded at driver/device | |
5721 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5722 | * this guarantee actually holds true. | |
5723 | * | |
5724 | * FIXME: cleanup any dangling user buffer objects too | |
5725 | */ | |
5726 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5727 | { | |
5728 | struct drm_connector *connector, *ot; | |
5729 | struct drm_crtc *crtc, *ct; | |
5730 | struct drm_encoder *encoder, *enct; | |
5731 | struct drm_framebuffer *fb, *fbt; | |
5732 | struct drm_property *property, *pt; | |
5733 | struct drm_property_blob *blob, *bt; | |
5734 | struct drm_plane *plane, *plt; | |
5735 | ||
5736 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5737 | head) { | |
5738 | encoder->funcs->destroy(encoder); | |
5739 | } | |
5740 | ||
5741 | list_for_each_entry_safe(connector, ot, | |
5742 | &dev->mode_config.connector_list, head) { | |
5743 | connector->funcs->destroy(connector); | |
5744 | } | |
5745 | ||
5746 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5747 | head) { | |
5748 | drm_property_destroy(dev, property); | |
5749 | } | |
5750 | ||
f35034f8 ML |
5751 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
5752 | head) { | |
5753 | plane->funcs->destroy(plane); | |
5754 | } | |
5755 | ||
5756 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5757 | crtc->funcs->destroy(crtc); | |
5758 | } | |
5759 | ||
87d24fc3 | 5760 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
e2f5d2ea | 5761 | head_global) { |
6bcacf51 | 5762 | drm_property_unreference_blob(blob); |
87d24fc3 LP |
5763 | } |
5764 | ||
5765 | /* | |
5766 | * Single-threaded teardown context, so it's not required to grab the | |
5767 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5768 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5769 | * | |
5770 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5771 | * so politely WARN about this. | |
5772 | */ | |
5773 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5774 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
d0f37cf6 | 5775 | drm_framebuffer_free(&fb->base.refcount); |
87d24fc3 LP |
5776 | } |
5777 | ||
5fff80bb | 5778 | ida_destroy(&dev->mode_config.connector_ida); |
138f9ebb | 5779 | idr_destroy(&dev->mode_config.tile_idr); |
87d24fc3 | 5780 | idr_destroy(&dev->mode_config.crtc_idr); |
51fd371b | 5781 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5782 | } |
5783 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5784 | |
5785 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5786 | unsigned int supported_rotations) | |
5787 | { | |
5788 | static const struct drm_prop_enum_list props[] = { | |
5789 | { DRM_ROTATE_0, "rotate-0" }, | |
5790 | { DRM_ROTATE_90, "rotate-90" }, | |
5791 | { DRM_ROTATE_180, "rotate-180" }, | |
5792 | { DRM_ROTATE_270, "rotate-270" }, | |
5793 | { DRM_REFLECT_X, "reflect-x" }, | |
5794 | { DRM_REFLECT_Y, "reflect-y" }, | |
5795 | }; | |
5796 | ||
5797 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5798 | props, ARRAY_SIZE(props), | |
5799 | supported_rotations); | |
5800 | } | |
5801 | EXPORT_SYMBOL(drm_mode_create_rotation_property); | |
138f9ebb DA |
5802 | |
5803 | /** | |
5804 | * DOC: Tile group | |
5805 | * | |
5806 | * Tile groups are used to represent tiled monitors with a unique | |
5807 | * integer identifier. Tiled monitors using DisplayID v1.3 have | |
5808 | * a unique 8-byte handle, we store this in a tile group, so we | |
5809 | * have a common identifier for all tiles in a monitor group. | |
5810 | */ | |
5811 | static void drm_tile_group_free(struct kref *kref) | |
5812 | { | |
5813 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); | |
5814 | struct drm_device *dev = tg->dev; | |
5815 | mutex_lock(&dev->mode_config.idr_mutex); | |
5816 | idr_remove(&dev->mode_config.tile_idr, tg->id); | |
5817 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5818 | kfree(tg); | |
5819 | } | |
5820 | ||
5821 | /** | |
5822 | * drm_mode_put_tile_group - drop a reference to a tile group. | |
5823 | * @dev: DRM device | |
5824 | * @tg: tile group to drop reference to. | |
5825 | * | |
5826 | * drop reference to tile group and free if 0. | |
5827 | */ | |
5828 | void drm_mode_put_tile_group(struct drm_device *dev, | |
5829 | struct drm_tile_group *tg) | |
5830 | { | |
5831 | kref_put(&tg->refcount, drm_tile_group_free); | |
5832 | } | |
5833 | ||
5834 | /** | |
5835 | * drm_mode_get_tile_group - get a reference to an existing tile group | |
5836 | * @dev: DRM device | |
5837 | * @topology: 8-bytes unique per monitor. | |
5838 | * | |
5839 | * Use the unique bytes to get a reference to an existing tile group. | |
5840 | * | |
5841 | * RETURNS: | |
5842 | * tile group or NULL if not found. | |
5843 | */ | |
5844 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, | |
5845 | char topology[8]) | |
5846 | { | |
5847 | struct drm_tile_group *tg; | |
5848 | int id; | |
5849 | mutex_lock(&dev->mode_config.idr_mutex); | |
5850 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { | |
5851 | if (!memcmp(tg->group_data, topology, 8)) { | |
5852 | if (!kref_get_unless_zero(&tg->refcount)) | |
5853 | tg = NULL; | |
5854 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5855 | return tg; | |
5856 | } | |
5857 | } | |
5858 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5859 | return NULL; | |
5860 | } | |
81ddd1bc | 5861 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
138f9ebb DA |
5862 | |
5863 | /** | |
5864 | * drm_mode_create_tile_group - create a tile group from a displayid description | |
5865 | * @dev: DRM device | |
5866 | * @topology: 8-bytes unique per monitor. | |
5867 | * | |
5868 | * Create a tile group for the unique monitor, and get a unique | |
5869 | * identifier for the tile group. | |
5870 | * | |
5871 | * RETURNS: | |
5872 | * new tile group or error. | |
5873 | */ | |
5874 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, | |
5875 | char topology[8]) | |
5876 | { | |
5877 | struct drm_tile_group *tg; | |
5878 | int ret; | |
5879 | ||
5880 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); | |
5881 | if (!tg) | |
5882 | return ERR_PTR(-ENOMEM); | |
5883 | ||
5884 | kref_init(&tg->refcount); | |
5885 | memcpy(tg->group_data, topology, 8); | |
5886 | tg->dev = dev; | |
5887 | ||
5888 | mutex_lock(&dev->mode_config.idr_mutex); | |
5889 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); | |
5890 | if (ret >= 0) { | |
5891 | tg->id = ret; | |
5892 | } else { | |
5893 | kfree(tg); | |
5894 | tg = ERR_PTR(ret); | |
5895 | } | |
5896 | ||
5897 | mutex_unlock(&dev->mode_config.idr_mutex); | |
5898 | return tg; | |
5899 | } | |
81ddd1bc | 5900 | EXPORT_SYMBOL(drm_mode_create_tile_group); |
f8ed34ac JS |
5901 | |
5902 | /** | |
5903 | * drm_crtc_enable_color_mgmt - enable color management properties | |
5904 | * @crtc: DRM CRTC | |
5905 | * @degamma_lut_size: the size of the degamma lut (before CSC) | |
5906 | * @has_ctm: whether to attach ctm_property for CSC matrix | |
5907 | * @gamma_lut_size: the size of the gamma lut (after CSC) | |
5908 | * | |
5909 | * This function lets the driver enable the color correction | |
5910 | * properties on a CRTC. This includes 3 degamma, csc and gamma | |
5911 | * properties that userspace can set and 2 size properties to inform | |
5912 | * the userspace of the lut sizes. Each of the properties are | |
5913 | * optional. The gamma and degamma properties are only attached if | |
5914 | * their size is not 0 and ctm_property is only attached if has_ctm is | |
5915 | * true. | |
5916 | */ | |
5917 | void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc, | |
5918 | uint degamma_lut_size, | |
5919 | bool has_ctm, | |
5920 | uint gamma_lut_size) | |
5921 | { | |
5922 | struct drm_device *dev = crtc->dev; | |
5923 | struct drm_mode_config *config = &dev->mode_config; | |
5924 | ||
5925 | if (degamma_lut_size) { | |
5926 | drm_object_attach_property(&crtc->base, | |
5927 | config->degamma_lut_property, 0); | |
5928 | drm_object_attach_property(&crtc->base, | |
5929 | config->degamma_lut_size_property, | |
5930 | degamma_lut_size); | |
5931 | } | |
5932 | ||
5933 | if (has_ctm) | |
5934 | drm_object_attach_property(&crtc->base, | |
5935 | config->ctm_property, 0); | |
5936 | ||
5937 | if (gamma_lut_size) { | |
5938 | drm_object_attach_property(&crtc->base, | |
5939 | config->gamma_lut_property, 0); | |
5940 | drm_object_attach_property(&crtc->base, | |
5941 | config->gamma_lut_size_property, | |
5942 | gamma_lut_size); | |
5943 | } | |
5944 | } | |
5945 | EXPORT_SYMBOL(drm_crtc_enable_color_mgmt); |